Double-sided film body, double-sided film tape, separation film laminate, separation film module, method for producing separation film laminate, method for producing separation film module, double-sided outer separation film tape, and method for producing double-sided outer separation film tape

Abstract

Provided is a separation film laminate with a high space factor.　A separation film laminate 11 is characterized by comprising separations film 2 on which a film body is supported by a support layer, wherein the separation films 2 are stacked on top of each other with the support layers thereof facing each other, thereby forming a double-sided film body 1, double-sided film bodies 1 are laminated to each other with the film bodies facing each other, thereby forming a rectangular parallelepiped shape with the layers of the laminated separation films being exposed at four end surfaces, and a supply-side flow path formed between the facing film bodies and a transmission-side flow path formed between the facing support layers are exposed at the four end surfaces.

Description

Double-sided film body, double-sided film tape, separation membrane laminate, separation membrane module, method for manufacturing a separation membrane laminate and method for manufacturing a separation membrane module, double-sided separation outer film tape, and method for manufacturing a double-sided separation outer film tape

[0001] The present invention relates to a double-sided film body, a double-sided film tape, a separation membrane laminate, a separation membrane module, a method for manufacturing a separation membrane laminate and a method for manufacturing a separation membrane module, a double-sided separation outer film tape, and a method for manufacturing a double-sided separation outer film tape.

[0002] Conventionally, as a separation membrane element used for reverse osmosis filtration, ultrafiltration, microfiltration, gas separation, etc., a supply-side flow path to which a supply-side fluid is supplied, a separation membrane that separates substances from the supply-side fluid, and a permeate-side flow path that guides the permeate-side fluid that has permeated through the separation membrane and separated from the supply-side fluid to a water collection pipe are arranged around the water collection pipe. Known separation membrane elements.

[0003] Such a separation membrane element is formed, for example, by adhering a separation membrane in a bag shape so as to sandwich a permeate-side flow path material for forming a permeate-side flow path therebetween to form a bag-shaped body, and then alternately stacking such a bag-shaped body and a supply-side flow path material for forming a supply-side flow path, and then connecting it to a water collection pipe, for example, by winding it in a spiral shape (see, for example, Patent Document 1).

[0004] Japanese Patent Application Laid-Open No. 2005-199141

[0005] Separation by the separation membrane uses less energy than other methods such as chemical adsorption, so improvements and new developments of separation membranes are being carried out all over the world towards a decarbonized society and the fixation of CO ２ However, the fundamental development of modules specialized for gases has not been carried out very much. ２ The structure of a spiral module for gases using a flat membrane, which is said to be suitable for large-scale applications, is basically the same as that for liquids, so it is not suitable for large-scale plants and is mainly considered applicable only to small-scale plants.

[0006]

[0007] ​The main reasons why the current modules are unsuitable for large-scale plants are as follows: 1. To create envelope-shaped leaves, adhesive must be applied to three sides of a tape-like separation membrane and two separation membranes must be bonded together. Creating large spiral-type modules requires a large number of leaves, resulting in an enormous amount of work. 2. Applying adhesive to the separation membrane causes various problems, such as the separation membrane becoming non-functional in the areas where adhesive has been applied. 3. Because the spiral type is literally cylindrical in appearance, it has a low space factor when many are arranged three-dimensionally. Also, because it is circular, it is not suitable for stacking.

[0008] To solve these problems, ２ To enable the inexpensive mass production of efficient separation membrane modules suitable for large-scale plants, using separation membranes that require minimal energy for separation, we invented and developed a method for creating double-sided membranes that do not require adhesive application using selective end-face sealing technology, a double-sided separation membrane tape with separation membranes on both sides, a high-speed manufacturing method for rectangular parallelepiped laminates with a high space factor, and modules thereof.

[0009] To solve the above problems, the invention described in claim 1 is a double-sided membrane comprising a separation membrane in which the membrane body is supported by a support layer, and the membrane body is exposed on both the front and back surfaces of the support layer.

[0010] The invention described in claim 2 is a double-sided membrane tape characterized by comprising a long separation membrane in which the membrane body is supported by a support layer, and the membrane body being exposed on both the front and back surfaces of the support layer.

[0011] The invention described in claim 3 is a separation membrane laminate comprising a membrane body supported by a support layer, wherein a double-sided membrane body is formed in which the membrane body is exposed on both the front and back surfaces of the support layer, the double-sided membrane bodies are stacked in a direction in which the membrane bodies face each other, and the stacked layers of the double-sided membrane bodies form a rectangular parallelepiped shape with four end faces exposed, and a supply-side channel formed between the opposing membrane bodies and a permeation-side channel formed between the opposing support layers are exposed at the four end faces.

[0012] The invention described in claim 8 is a separation membrane module comprising a separation membrane in which the membrane body is supported by a support layer, a double-sided membrane body formed in which the membrane body is exposed on both the front and back surfaces of the support layer, the double-sided membrane body is stacked in a direction in which the membrane bodies face each other, forming a rectangular parallelepiped shape in which the stacked layers of double-sided membrane body are exposed at four end faces, and a separation membrane stack in which a supply-side channel formed between opposing membrane bodies and a permeate-side channel formed between opposing support layers are exposed at the four end faces, wherein the supply-side channel and the permeate-side channel exposed at the four end faces are selectively sealed.

[0013] The invention described in claim 9 is a method for manufacturing a separation membrane laminate, characterized in that the separation membrane comprises a separation membrane in which the membrane body is supported by a support layer, and the separation membrane is formed by stacking double-sided membrane bodies in which the support layers are placed opposite each other to form a laminate.

[0014] The invention described in claim 10 is a method for manufacturing a separation membrane laminate, characterized in that the membrane body comprises a long separation membrane supported by a support layer, and the separation membrane is formed by stacking long double-sided membrane tapes, which are stacked with the support layers facing each other, in a folded manner.

[0015] The invention described in claim 11 is a method for manufacturing a separation membrane module, characterized in that it is manufactured using the method for manufacturing a separation membrane laminate described in claim 9 or claim 10.

[0016] The invention described in claim 12 is a double-sided separation outer membrane tape characterized in that a resin coated on both sides of the nonwoven fabric tape base material forms a dense-coarse layer with a higher density relative to the base material on both sides of the base material, a dense layer with a higher density relative to the dense-coarse layer is formed on the outside of each dense-coarse layer, and a separation functional membrane is formed on the outside of each dense layer.

[0017] The invention described in claim 13 is a method for manufacturing a double-sided separation outer film tape, characterized by applying resin to both sides of a nonwoven tape base material to form dense and coarse layers with a higher density relative to the base material on both sides of the base material, forming dense layers with a higher density relative to the coarse and coarse layers on the outside of each of the coarse and coarse layers, and forming separation functional layers on the surfaces of the upper and lower dense layers.

[0018] This is a side cross-sectional view showing an example of the basic configuration of a double-sided membrane body of each embodiment. This is a perspective view showing an example of the basic configuration of a separation membrane laminate of each embodiment. This is a side cross-sectional view of a main part showing an example of the basic configuration of a separation membrane laminate of each embodiment. This is a perspective view showing an example of the basic configuration of a separation membrane module of each embodiment. This is a perspective view showing an example of the basic configuration of a separation membrane module of each embodiment. This is a perspective view showing an example of the basic configuration of a separation membrane module of each embodiment. This is a cross-sectional view showing an example of a condensing plate. This is a plan view showing an example of a double-sided membrane tape used in the separation membrane module of the first embodiment. This is a perspective view showing an example of the configuration and manufacturing method of the separation membrane module of the first embodiment. This is a side cross-sectional view showing an example of the configuration and manufacturing method of the separation membrane module of the first embodiment. This is a side cross-sectional view showing a first modified example of the separation membrane module of the first embodiment. This is a side cross-sectional view showing a second modified example of the separation membrane module of the first embodiment. This is a side cross-sectional view showing an example of a separation membrane module of the second embodiment. This is a plan view showing an example of a grid groove plate. This is a cross-sectional view taken along line A-A in Figure 14 showing an example of a grid groove plate. This is a cross-sectional view taken along line B-B in Figure 14 showing an example of a grid groove plate. This is a side view showing an example of an implantation jig. This is a plan view showing an example of an implantation jig. This is a side view showing an example of an implantation stand. This is a plan view showing an example of an implantation process. This is a plan view showing an example of an implantation process. This is a front view showing an example of a laminate of double-sided film tapes. This is a left (right) side view showing an example of a laminate of double-sided film tapes. This is a left (right) side view of the main part showing an example of a laminate of double-sided film tapes. This is a cross-sectional view taken along line C-C in Figure 24, showing an example of a permeable channel formation process. This is a cross-sectional view showing an example of a sealing process near the aggregation plate. This is a cross-sectional view showing an example of a process to secure a gap between the double-sided film tapes in the sealing process near the aggregation plate. This is a perspective view of the main part showing an example of a sealing process for the front and rear end faces. This is a side cross-sectional view showing a first modified example of the separation membrane module of the second embodiment. This is a side cross-sectional view showing a second modified example of the separation membrane module of the second embodiment. This is a perspective view showing a third modified example of the separation membrane module of the second embodiment. This is a side cross-sectional view showing a third modified example of the separation membrane module of the second embodiment. This is a perspective view showing a fourth modified example of the separation membrane module of the second embodiment.This is a plan view showing an example of a rear end unsealed double-sided film tape constituting a separation membrane module of the third embodiment. This is a plan view showing an example of a three-end sealed double-sided film sheet constituting a separation membrane module of the third embodiment. This is a perspective view showing an example of a laminate of three-end sealed double-sided film sheets. This is a front view showing an example of a laminate of three-end sealed double-sided film sheets deformed into a parallelogram. This is a perspective view showing an example of an embedded container plate. This is a front view showing a state of temporary adhesion to an adhesive jig plate. This is an enlarged front view of the main part showing a state of temporary adhesion to an adhesive jig plate. This is a front view showing a state of the laminate suspended from an adhesive jig plate. This is a front view showing the process of dividing a three-end sealed double-sided film sheet. This is a front view showing the process of dividing a three-end sealed double-sided film sheet. This is a top view showing the process of dividing a three-end sealed double-sided film sheet. This is a front view showing the process of dividing a three-end sealed double-sided film sheet. This is a front view showing the process of dividing a three-end sealed double-sided film sheet. This is a front view showing the process of connecting the dividing jigs. This is a front view showing the process of injecting the sealing material and attaching the aggregation plate. This is a front view showing the process of injecting the sealing material and attaching the collection plate. This is a front view showing the process of attaching the comb spacer. This is a front view showing an example of a separation membrane module. This is a perspective view showing an example of a separation membrane module of the fourth embodiment. This is a cross-sectional view showing an example of a grid groove jig plate with an adhesive plate. This is a cross-sectional view showing an example of a grid groove jig plate with an adhesive plate. This is a front view showing the process of attaching the dividing jig. This is a front view showing the process of attaching the dividing jig. This is a front view showing the process of attaching the dividing jig. This is a front view showing the process of attaching the left and right embedded container plates. This is a front view showing the process of attaching the left and right embedded container plates. This is a front view showing the process of forming the permeate side outlet. This is a front view showing the process of forming the permeate side outlet. This is a perspective view showing an example of a completed separation membrane module. This is a perspective view showing an example of a separation membrane module of the fifth embodiment. This is a front view showing the process of opening the permeate side channel. This is an enlarged front view of the main part showing the process of opening the permeate side channel. This is an enlarged front view of the main part showing the process of attaching the embedded container plate. This is an enlarged front view of the main part showing the process of attaching the collection plate. This is a plan view showing an example of a dividing jig. This is a plan view showing an example of a dividing jig. This is a plan view showing an example of a splitting jig. This is a front view showing an example of a base plate device for implanting end-face sealing double-sided film tape.This is a front view showing the process of embedding the end-face sealing double-sided film tape. This is a front view showing the process of embedding the end-face sealing double-sided film tape. This is a front view showing the process of embedding the end-face sealing double-sided film tape. This is a front view showing the process of embedding the end-face sealing double-sided film tape. This is a front view showing the process of embedding the end-face sealing double-sided film tape. This is an enlarged front view of the main part showing the process of cutting the end-face sealing double-sided film tape. This is an enlarged plan view of the main part showing the process of inserting the vertical comb spacer. This is an enlarged front view of the main part showing the process of embedding the end-face sealing double-sided film tape into the embedded container plate. This is an enlarged front view of the main part showing the process of opening the permeable side channel. This is a front view showing the process of covering the laminate of end-face sealing double-sided film tape with a frame. This is a front view showing an example of a separation membrane module of the sixth embodiment. This is a cross-sectional view showing an example of an embedded container aggregation plate. This is a cross-sectional view showing the process of injecting non-adhesive liquid and adhesive into the embedded container aggregation plate. This is a cross-sectional view showing the process of draining the non-adhesive liquid. This is a perspective view showing an example of a parallel irregular-shaped hole nozzle for making spacers. This is a perspective view showing an example of a spacer manufactured using a parallel irregular-shaped hole nozzle. This is a perspective view showing an example of a spacer manufactured using a parallel irregular-shaped hole nozzle. This is a perspective view showing an example of a spacer manufactured using a parallel irregular-shaped hole nozzle. This is a cross-sectional view showing an example of an end-face sealing double-sided film tape. This is a front view showing an example of a base plate device for implanting end-face sealing double-sided film tape. This is a rear view front view showing an example of a grid-type grooved adhesive plate. This is a rear view perspective showing an example of an adhesive plate. This is a cross-sectional view taken along line D-D in Figure 92 showing an example of a grid-type grooved adhesive plate. This is a cross-sectional view taken along line E-E in Figure 92 showing an example of a grid-type grooved adhesive plate. This is a plan view showing an example of an insertion plate with a friction plate. This is a side view showing an example of an insertion plate with a friction plate. This is an enlarged cross-sectional view of the main part showing the state in which end-face sealing double-sided film tape 1H is implanted in the grid-type grooved adhesive plate with an insertion plate with a friction plate. This is an enlarged cross-sectional view of the main part showing the state in which end-face sealing double-sided film tape is implanted in the grid-type grooved adhesive plate with an insertion plate with a friction plate. This is a front view showing the process of attaching the grid-type grooved adhesive plate to the base plate device. This is a front view showing the process of implanting end-face sealing double-sided film tape. This is a front view showing the process of implanting end-face sealing double-sided film tape. This is a front view showing the process of implanting end-face sealing double-sided film tape. This is a front view showing the process of implanting end-face sealing double-sided film tape.This is a front view showing the process of placing a frame over a laminate of end-face sealing double-sided film tape. This is a side view showing the process of cutting the end-face sealing double-sided film tape. This is a side view showing the process of cutting the end-face sealing double-sided film tape. This is a cross-sectional view showing the process of injecting non-adhesive liquid and adhesive into the embedded container aggregation plate. This is a cross-sectional view showing the process of embedding the end-face sealing double-sided film tape. This is a cross-sectional view showing the process of removing the divided retainer. This is a front view showing an example of a separation membrane module of the eighth embodiment. This is an enlarged cross-sectional view of a key part showing a first modified example of the separation membrane module of the eighth embodiment. This is an enlarged cross-sectional view of a key part showing a second modified example of the separation membrane module of the eighth embodiment. This is an enlarged cross-sectional view of a key part showing a third modified example of the separation membrane module of the eighth embodiment. This is an enlarged cross-sectional view of a key part showing the fourth step, the embedding step, in the third modified example of the separation membrane module of the eighth embodiment. This is an enlarged cross-sectional view of a key part showing the fourth step, the embedding step, in the third modified example of the separation membrane module of the eighth embodiment. This is an enlarged cross-sectional view of a key part showing the fourth step, the embedding step, in the third modified example of the eighth embodiment. This is an enlarged cross-sectional view of the main part showing the fourth step, the embedding step, in the separation membrane module of the third modified example of the eighth embodiment. This is an enlarged cross-sectional view of the main part showing the fourth step, the embedding step, in the separation membrane module of the third modified example of the eighth embodiment. This is an enlarged cross-sectional view of the main part showing the fourth modified example of the separation membrane module of the eighth embodiment. This is an enlarged cross-sectional view of the main part showing the fourth step, the embedding step, in the separation membrane module of the fifth modified example of the eighth embodiment. This is a perspective view of the main part showing the sixth modified example of the separation membrane module of the eighth embodiment. This is a cross-sectional view showing an example of a double-sided separation inner membrane body of this embodiment. This is a plan view showing an example of a unit cell. This is a perspective view showing an example of a cell plate block. This is a configuration diagram showing an example of a manufacturing apparatus for double-sided separation inner membrane tape. This is a plan view showing the manufacturing process of a double-sided separation inner membrane sheet. This is a perspective view showing the manufacturing process of a cell plate block. This is a perspective view showing the selective end-face sealing process of a cell plate block. This is an enlarged perspective view of the main part showing the permeate vein formation process. This is an enlarged cross-sectional view of the main part showing the permeate vein formation process. This is a perspective view showing the cell plate module manufacturing process. This is a top view showing the manufacturing process of a pleated separation membrane module.This is a front view showing the manufacturing process of a pleated separation membrane module. This is a side view showing an example of a separation membrane module according to the tenth embodiment. This is a side view showing an example of an implantation device for implanting end-face sealing double-sided membrane tape. This is a side view showing an example of a method for manufacturing a separation membrane module according to the tenth embodiment. This is a side view showing an example of a method for manufacturing a separation membrane module according to the tenth embodiment. This is a side view showing an example of a method for manufacturing a separation membrane module according to the tenth embodiment. This is a side view showing a first modified example of the method for manufacturing a separation membrane module according to the tenth embodiment. This is a side view showing a first modified example of the method for manufacturing a separation membrane module according to the tenth embodiment. This is a side view showing a first modified example of the method for manufacturing a separation membrane module according to the tenth embodiment. This is a side view showing a first modified example of the method for manufacturing a separation membrane module according to the tenth embodiment. This is a side view showing a second modified example of the method for manufacturing a separation membrane module according to the tenth embodiment. This is a cross-sectional view taken along line F-F in Figure 146 showing a second modified example of the method for manufacturing a separation membrane module according to the tenth embodiment. This is a cross-sectional view taken along the line F-F in Figure 146, showing a second modified example of the method for manufacturing a separation membrane module according to the tenth embodiment. This is a cross-sectional view showing an example of a double-sided separation outer membrane tape according to this embodiment.

[0019] The embodiments of the present invention will be described below with reference to the figures. However, the technical scope of the present invention is not limited to the illustrated examples, and various modifications can be made to the embodiments described below without departing from the spirit of the invention.

[0020] <Examples of Basic Configurations of Double-Sided Membrane Bodies in Each Embodiment> Figure 1 is a side cross-sectional view showing an example of the basic configuration of a double-sided membrane body in each embodiment. The double-sided membrane body 1 comprises a separation membrane 2 in which a membrane body 2a is supported by a support layer 2b. The separation membrane 2 is square or rectangular, with one side of the square or rectangular quadrilateral shape being composed of the membrane body 2a and the other side being composed of the support layer 2b. The double-sided membrane body 1 is formed by overlapping the separation membranes 2 with the support layers 2b facing each other.

[0021] In the double-sided membrane 1, a permeable channel 13, described later, is formed between the opposing support layers 2b. Alternatively, the double-sided membrane 1 may have a permeable channel material 13a, which forms the permeable channel 13, inserted between the opposing support layers 2b.

[0022] The double-sided membrane 1 can be stacked in a rectangular parallelepiped shape to create a separation membrane stack 11, which will be described later, and the separation membrane module 10, which will be described later, can be used with the separation membrane stack 11.

[0023] <Examples of basic configurations of separation membrane laminates in each embodiment> Figure 2 is a perspective view showing an example of the basic configuration of the separation membrane laminate in each embodiment, and Figure 3 is a cross-sectional view of the main part showing an example of the basic configuration of the separation membrane laminate in each embodiment.

[0024] The separation membrane laminate 11 is formed by stacking the double-sided membranes 1 described above in a rectangular parallelepiped shape. As described above, the double-sided membrane 1 comprises a separation membrane 2 in which the membrane body 2a is supported by a support layer 2b, and the separation membranes 2 are formed by stacking them with the support layers 2b facing each other. As a result, the membrane body 2a is exposed on both the front and back surfaces of the double-sided membrane 1.

[0025] The separation membrane laminate 11 is formed by stacking multiple double-sided membrane bodies 1 with their respective membrane bodies 2a facing each other, creating a rectangular parallelepiped shape. In the separation membrane laminate 11, a supply-side channel 12 is formed between the opposing membrane bodies 2a through which the supply-side fluid passes, and a permeate-side channel 13 is formed between the opposing support layers 2b through which the permeate-side fluid passes. In addition, the separation membrane laminate 11 may have a supply-side channel material 12a that forms the supply-side channel 12 between the opposing membrane bodies 2a. Furthermore, the separation membrane laminate 11 may have a permeate-side channel material 13a that forms the permeate-side channel 13 between the opposing support layers 2b.

[0026] In the separation membrane laminate 11, the layers of stacked separation membranes 2 (double-sided membranes 1) are exposed on four of the six faces of the rectangular parallelepiped. As a result, the supply-side channel 12 and the permeate-side channel 13 are exposed on the four end faces of the separation membrane laminate 11.

[0027] In the separation membrane laminate 11, one of the four end faces on which the supply-side channel 12 and the permeate-side channel 13 are exposed is designated as the supply surface for the supply-side fluid supplied to the supply-side channel 12.

[0028] The coordinate system of the separation membrane laminate 11 is defined as follows in the perspective view shown in Figure 2. When the separation membrane laminate 11 is depicted with the layers of the stacked separation membranes 2 horizontal and the supply surface of the supply fluid facing forward, the front side of the paper is referred to as front, front edge, or front end; the back side as back, rear edge, or rear end; the left side as left, left edge, or left end; the right side as right edge, side, or right end; the top side as top, top edge, or top end; and the bottom side as bottom, bottom edge, or bottom end.

[0029] The separation membrane laminate 11 has a front end face 11Fr, a rear end face 11Ba, a right end face 11Re, and a left end face 11Le. The separation membrane laminate 11 also has an upper surface 11Up and a lower surface 11Dw.

[0030] <Examples of sealing the end faces of the separation membrane laminate in each embodiment> The front end face 11Fr, rear end face 11Ba, right end face 11Re, and left end face 11Le of the separation membrane laminate 11, where the supply-side channel 12 and the permeate-side channel 13 are exposed, are selectively sealed with a sealing material.

[0031] Three methods can be considered for selectively sealing each end face of the separation film laminate 11 with a sealing material.

[0032] [Method 1] In the separation membrane laminate 11, the difference in wettability between the inner surface of the gaps and holes constituting the supply-side channel 12 and the permeation-side channel 13 and the sealing material is utilized to seal only the side with good wettability with the sealing material.

[0033] [Method 2] In the separation membrane laminate 11, the difference in spacing between the inner surfaces of the gaps and pores constituting the supply-side channel 12 and the permeate-side channel 13 is utilized to seal only the narrow gaps with a sealing material. For example, a sealing material with high wettability and low viscosity is used to seal narrow gaps using capillary action. Low viscosity sealing material that has entered shallowly into wider gaps is removed by wiping with a cloth of appropriate selectivity (e.g., coarseness) or by shaking it off.

[0034] [Method 3] In the separation membrane laminate 11, the difference in spacing between the inner surfaces of the gaps and holes constituting the supply-side flow path 12 and the permeate-side flow path 13 is utilized to seal only the wide gaps with a sealing material. For example, a highly viscous sealing material is injected under pressure into the end face to be sealed. The highly viscous sealing material penetrates deeply into wide gaps but only shallowly into narrow gaps. By removing the sealing material from the end face of the separation membrane laminate 11 by thinly scraping it, the sealing material remains only in the wide gaps, thus sealing them. In some cases, the adhesion of the sealing material to the end face of the separation membrane laminate 11 can be prevented by applying a water-repellent treatment to the end faces of the separation membrane laminate 11, in which case removal work such as thinly scraping the end face of the separation membrane laminate 11 is unnecessary.

[0035] Furthermore, when using methods 2 and 3, the difference in the gap between the supply-side flow path 12 and the permeate-side flow path 13 is utilized, so the following points must be considered.

[0036] First, let's explain the essential difference between the supply channel 12 and the permeate channel 13. When separating substances in a fluid with the separation membrane 2, the supply side must have higher pressure than the permeate side through the separation membrane. That is, the supply channel 12 needs to have high pressure and the permeate channel 13 needs to have low pressure. Because the supply channel 12 has high pressure, a force is applied in the direction of expanding the channel, so the spacer used to secure the width of the channel does not need to have high pressure resistance. For this reason, when supply channel material 12a is installed, it may be provided sparsely. In contrast, the permeate channel 13 receives pressure from the supply channel 12, so it needs strength and density to withstand that pressure.

[0037] From these observations, when supply-side channel material 12a is used, the supply-side channel material 12a is sparsely distributed in the supply-side channel 12, but the gaps between it become larger. In contrast, when permeation-side channel material 13a is used, the permeation-side channel material 13a is densely distributed in the permeation-side channel 13, resulting in smaller gaps between it. This allows for selective sealing with a sealing material when using methods 2 and 3, by utilizing the difference in gaps between the supply-side channel 12 and the permeation-side channel 13.

[0038] In addition, in order to clarify the difference in the gap between the supply-side flow path 12 and the permeation-side flow path 13 and make selective sealing easier, a method of not arranging the supply-side flow path member 12a within several millimeters from the end face to be sealed is also effective.

[0039] <Basic configuration example of the separation membrane module of each embodiment> Figures 4 to 6 are perspective views showing an example of the basic configuration of the separation membrane module of each embodiment. As the separation membrane module 10 using the above-described separation membrane laminate 11, for example, the following three types of separation membrane modules 10(1) to (3) can be considered.

[0040] (1) In the separation membrane laminate 11 used in the separation membrane module 10(1) shown in FIG. 4, at the front end face 11Fr and the rear end face 11Ba, the permeation-side flow path 13 is sealed and the supply-side flow path 12 is opened. Further, in one of the left and right end faces of the separation membrane laminate 11, for example, in the left end face 11Le, both the supply-side flow path 12 and the permeation-side flow path 13 are sealed, and in the other of the left and right end faces, for example, in the right end face 11Re, the supply-side flow path 12 is sealed and the permeation-side flow path 13 is opened. Then, a collecting plate 14 is attached to the right end face 11Re of the separation membrane laminate 11 to form the separation membrane module 10(1).

[0041] When pressure is applied from the front end face 11Fr to supply the supply-side fluid to the separation membrane module 10(1), it becomes a cross-flow type in which the permeation-side fluid that has permeated through the separation membrane 2 gathers on the collecting plate 14.

[0042] FIG. 7 is a cross-sectional view showing an example of the collecting plate. The collecting plate 14 is a box-shaped object attached to the outlet of the permeation-side flow path, which secures a space against pressure and collects the permeation-side fluid without the supply-side fluid being mixed in, and a permeation-side fluid outlet 14a serving as an outlet for the fluid that has gathered in place is provided.

[0043] (2) The separation membrane laminate 11 used in the separation membrane module 10(2) shown in FIG. 5 has the permeation-side flow path 13 sealed and the supply-side flow path 12 opened at the front end face 11Fr and the rear end face 11Ba. Also, at the left end face 11Le and the right end face 11Re of the separation membrane laminate 11, the supply-side flow path 12 is sealed and the permeation-side flow path 13 is opened. Then, the collector plates 14 are attached to the left end face 11Le and the right end face 11Re of the separation membrane laminate 11 to form the separation membrane module 10(2).

[0044] When pressure is applied from the front end face 11Fr to supply the supply-side fluid to the separation membrane module 10(2), the permeation-side fluid that has permeated through the separation membrane 2 collects on the left and right collector plates 14, making it a cross-flow type. The separation membrane module 10(2) has a length of the permeation-side flow path 13 that is half and a number that is twice that of the separation membrane module 10(1), resulting in a significant reduction in flow path resistance and an improvement in performance.

[0045] (3) The separation membrane laminate 11 used in the separation membrane module 10(3) shown in FIG. 6 has the permeation-side flow path 13 sealed and the supply-side flow path 12 opened at the front end face 11Fr. Also, at the rear end face 11Ba of the separation membrane laminate 11, the supply-side flow path 12 is sealed and the permeation-side flow path 13 is opened. Further, at the left end face 11Le and the right end face 11Re of the separation membrane laminate 11, both the supply-side flow path 12 and the permeation-side flow path 13 are sealed to form the separation membrane module 10(3).

[0046] When pressure is applied from the front end face 11Fr to supply the supply-side fluid to the separation membrane module 10(3), the permeation-side fluid that has permeated through the separation membrane 2 is discharged from the rear end face 11Ba, and the fluid that could not permeate through the separation membrane 2 is concentrated and remains inside the separation membrane 2, making it a total volume filtration type module.

[0047] <Configuration Example and Manufacturing Method Example of Separation Membrane Module of the First Embodiment> FIG. 8 is a plan view showing an example of the double-sided film tape used in the separation membrane module of the first embodiment. The double-sided film tape 1A is in a form in which the double-sided film body 1 described in FIG. 1 is connected in a long shape.

[0048] In other words, as shown in Figure 1, the double-sided membrane tape 1A comprises a separation membrane 2 in which a membrane body 2a is supported by a support layer 2b, and the separation membrane 2 is formed by overlapping the support layers 2b in opposing directions. In the double-sided membrane tape 1A, a permeable channel 13 is formed between the opposing support layers 2b. In addition, the double-sided membrane tape 1A has a permeable channel material 13a that forms the permeable channel 13 inserted between the opposing support layers 2b.

[0049] [Step 1: Fabrication of a double-sided film] The double-sided film tape 1A is cut to match the size of the separation film laminate 11 to be fabricated, forming a sheet-like double-sided film 1.

[0050] [Second step: Fabrication of separation membrane laminate] Multiple double-sided membranes 1 are arranged with their respective membrane bodies 2a facing each other, and the double-sided membranes 1 and the supply-side flow channel material 12a are alternately stacked to fabricate a rectangular parallelepiped-shaped separation membrane laminate 11.

[0051] Figure 9 is a perspective view showing an example of the configuration and manufacturing method of the separation membrane module of the first embodiment, and Figure 10 is a side cross-sectional view showing an example of the configuration and manufacturing method of the separation membrane module of the first embodiment.

[0052] [Step 3: Attachment of sealing frame] (1) As shown in Figure 9, attach the sealing frame 15 near the left end face 11Le and the right end face 11Re of the separation film laminate 11. (2) Seal the gap between the inner edge of the sealing frame 15 and the separation film laminate 11 with an adhesive or the like. If there is a large portion that protrudes outward from the sealing frame 15, seal the entire front end face 11Fr and rear end face 11Ba of the portion of the separation film laminate 11 that protrudes from the sealing frame 15.

[0053] [Fourth step: Selective end sealing of left and right end faces] The separation membrane laminate 11, to which the sealing frame 15 is attached, is placed with its left end face 11Le facing downwards and immersed in a sealing tank (not shown), and only the supply-side flow path 12 is sealed by the selective end sealing method 3 described above. The right end face 10R is also selectively sealed in the same manner.

[0054] [Step 5: Selective end sealing of front and rear end faces] With the sealing frame 15 attached and the left and right end faces of the separation membrane laminate 11 selectively sealed, the front end face 11Fr of the laminate 11 is placed face down and immersed in a sealing tank (not shown), and selective end sealing of the permeable channel 13 is performed using the method 1 or method 2 described above to seal only the permeable channel 13. The rear end face 11Ba is also selectively sealed in the same manner. Note that if a double-sided membrane 1 is used, which is made by cutting an end-sealed double-sided membrane tape that has sealed the short-side end faces that become the front and rear end faces when the separation membrane laminate 11 is manufactured, the front and rear end faces of the permeable channel 13 are already sealed, so step 5 is unnecessary.

[0055] [Step 6: Attachment of aggregation plates] The aggregation plates 14 are attached to the left and right sealing frames 15 of the separation film laminate 11, which has the sealing frames 15 attached and the left and right end faces and front and rear end faces selectively sealed, as shown in Figure 10.

[0056] As described above, when a supply fluid is supplied to the separation membrane module 10A by applying pressure from the front end surface 11Fr of the separation membrane laminate 11, the supply fluid moves backward through the supply channel 12 secured by the supply channel material 12a. The permeate fluid that has permeated through the separation membrane 2 flows left and right through the permeate channel 13 in the double-sided membrane body 1, collects in the left and right collection plates 14, and can be extracted from the permeate fluid outlet 14a provided at the end of the collection plate 14. On the other hand, the supply fluid is concentrated and discharged from the rear end surface 11Ba of the separation membrane laminate 11 shown in Figure 9.

[0057] <First Modified Example of the Separation Membrane Module of the First Embodiment> Figure 11 is a side cross-sectional view showing a first modified example of the separation membrane module of the first embodiment. In the first modified example of the separation membrane module 10A(1) of the first embodiment, sealing frames 15 are attached near the left end face 11Le and near the right end face 11Re of a separation membrane laminate 11 formed by laminating double-sided membrane bodies 1, allowing the supply-side fluid to flow in the left-right direction and the permeate-side fluid to flow out from the front and rear end faces.

[0058] In the process of manufacturing the separation membrane module 10A(1) of the first modified example of the first embodiment, the first step of manufacturing the double-sided membrane body 1, the second step of manufacturing the separation membrane laminate 11, and the third step of attaching the sealing frame 15 to the separation membrane laminate 11 are the same as those of the separation membrane module 10A of the first embodiment.

[0059] [Fourth step: Selective end sealing of left and right end faces] With the sealing frame 15 attached to the separation membrane laminate 11, the left end face 11Le is placed downwards and immersed in a sealing tank (not shown), and only the permeate side channel 13 is sealed by the selective end sealing method 2 described above. The right end face 10R is also selectively sealed in the same manner. Note that if the left and right end faces of the double-sided membrane body 1, which is made by cutting the double-sided membrane tape, are sealed in advance by heat fusion or the like, the fourth step is unnecessary. Also, if there is a large portion that protrudes outward from the sealing frame 15, the front end face 11Fr and rear end face 11Ba of the portion of the separation membrane laminate 11 that protrudes from the sealing frame 15 are sealed completely.

[0060] [Step 5: Selective end sealing of front and rear end faces] With the sealing frame 15 attached and the left and right end faces of the separation membrane laminate 11 selectively sealed, the front end face 11Fr of the laminate is placed face down and immersed in a sealing tank (not shown), and the selective end sealing of the supply side channel 12 as described above is performed to seal only the supply side channel 12. The rear end face 11Ba is also selectively sealed in the same manner. It is also rational to immerse the front and rear end faces deeply in a container containing a high-viscosity sealing material, raise the liquid level, and use the pressure difference due to the difference in height between the liquid level and the laminate to seal the supply side channel 12, which has a wide gap.

[0061] When the separation membrane module 10A(1) manufactured as described above is supplied to the supply channel 12 by applying pressure from one end face, either the left end face 11Le or the right end face 11Re of the separation membrane laminate 11, the concentrated supply liquid flows out from the other end face on the left or right, and the permeate fluid flows out from the front end face 11Fr and the rear end face 11Ba shown in Figure 9 of the separation membrane laminate 11.

[0062] <Second Modification of the Separation Membrane Module of the First Embodiment> Figure 12 is a side cross-sectional view showing a second modification of the separation membrane module of the first embodiment. The separation membrane module 10A(2) of the second modification of the first embodiment is obtained by sealing the separation membrane module 10A(1) of the second modification in a cylindrical container 16.

[0063] In the process of manufacturing the separation membrane module 10A(1) of the first modification of the first embodiment, the first step of manufacturing the double-sided membrane body 1, the second step of manufacturing the separation membrane laminate 11, the third step of attaching the sealing frame 15 to the separation membrane laminate 11, the fourth step of selectively sealing the left and right end faces, and the fifth step of selectively sealing the front and rear end faces are the same as those of the separation membrane module 10A(1) of the first modification of the first embodiment.

[0064] [Step 6: Sealing into a cylindrical container] The sealing frame 15 is attached to the separation membrane laminate 11, which has its left and right end faces and front and rear end faces selectively sealed, and it is placed into a pressure-resistant cylindrical container 16, which has a supply-side fluid inlet 16a formed on the left end face, a supply-side fluid outlet 16b formed on the right end face, and a permeable-side fluid outlet 16c formed on the upper end face. The outer edge of the sealing frame 15 is then connected to the inner wall of the cylindrical container 16 without any gaps.

[0065] The supply-side fluid inlet 16a is located outside the left sealing frame 15 and connects to a space where the left end surface 11Le of the separation membrane laminate 11 is exposed. The supply-side fluid outlet 16b is located outside the right sealing frame 15 and connects to a space where the right end surface 11Re of the separation membrane laminate 11 is exposed. Furthermore, the permeate-side fluid outlet 16c is located between the left and right sealing frames 15 and connects to a space where the front end surface 11Fr and the rear end surface 11Ba shown in Figure 9 of the separation membrane laminate 11 are exposed.

[0066] As described above, when the separation membrane module 10A(2) is manufactured, and pressure is applied from the left end face 11Le of the separation membrane stack 11 to supply the supply fluid to the supply channel 12 through the supply-side fluid inlet 16a of the cylindrical container 16, the supply fluid advances within the supply channel 12, and the permeate-side fluid that has permeated the separation membrane 2 flows through the permeate-side channel 13 and flows out from the front end face 11Fr and rear end face 11Ba of the separation membrane stack 11, and flows out from the permeate-side fluid outlet 16c of the cylindrical container 16. The concentrated supply fluid that has not permeated the separation membrane 2 flows out from the right end face 11Re of the separation membrane stack 11, through the opposite end face of the container, and through the supply-side fluid inlet 16a of the cylindrical container 16.

[0067] Furthermore, the separation membrane module 10A(2) is also applicable to gases because the separation membrane laminate 11 is housed in a cylindrical container 16.

[0068] <Example of Configuration and Manufacturing Method of the Separation Membrane Module of the Second Embodiment> Figure 13 is a side cross-sectional view showing an example of a separation membrane module of the second embodiment. In the separation membrane module 10B of the second embodiment, the elongated double-sided membrane tape 1A shown in Figure 8 is supported on the grid groove plate 17 in a folded state so as to be stacked. The fold or vicinity of the fold of the double-sided membrane tape 1A supported on the grid groove plate 17 is cut to form a separation membrane laminate 11 with the left end face 11Le and the right end face 11Re supported on the grid groove plate 17. The collection plate 14 shown in Figure 7 is attached to the left end face 11Le and the right end face 11Re of the separation membrane laminate 11 supported on the grid groove plate 17.

[0069] Figure 14 is a plan view showing an example of a grid groove plate, Figure 15 is a cross-sectional view taken along line A-A in Figure 14 showing an example of a grid groove plate, and Figure 16 is a cross-sectional view taken along line B-B in Figure 14 showing an example of a grid groove plate.

[0070] The grid groove plate 17 comprises groove plates 18 and a grid 19. In the grid groove plate 17, a plurality of groove plates 18 are supported by a frame 17a, aligned along the stacking direction of the double-sided film tape 1A, and groove portions 18a are formed between the groove plates 18. The grid groove plate 17 has a plurality of groove portions 18a into which the double-sided film tape 1A is inserted, formed along the stacking direction of the double-sided film tape 1A. The groove portions 18a open with a width approximately equal to the width of the separation film laminate 11 and a height approximately twice the thickness of the double-sided film tape 1A. In the grid groove plate 17, a grid 19 is formed on the side opposite to the side into which the double-sided film tape 1A is inserted, extending in a direction intersecting the direction in which the groove plates 18 and groove portions 18a extend.

[0071] Furthermore, the grid 19 has a convex shape at the part that contacts the groove plate 18 and a concave shape at the part that faces the groove portion 18a, so that when the double-sided film tape 1A is inserted in a folded state, the fold and its vicinity protrude from the groove plate 18 to the back side.

[0072] Figure 17 is a side view showing an example of an implantation jig, and Figure 18 is a top view showing an example of an implantation jig.

[0073] An implantation jig 20 is used to implant the double-sided film tape 1A into the grooves 18a of the grid groove plate 17. The implantation jig 20 comprises two insertion plates 21L and 21R, one for the left and one for the right, which are arranged in an M shape, and a rotating body 21C that supports the insertion plates 21L and 21R.

[0074] The implantation jig 20 is configured to reciprocate between a pair of left and right grid groove plates 17 by a drive mechanism (not shown). The implantation jig 20 rotates according to the direction of travel, so that the edges of the insertion plates 21L and 21R become parallel to the direction of travel. The edges of the insertion plates 21L and 21R are shaped so that a folded double-sided film tape 1A can be inserted into the groove 18a. The implantation jig 20 has a slit 20a formed in the rotating body 21C through which the double-sided film tape 1A passes, and the double-sided film tape 1A passed through the slit 20a is supplied to the insertion plate 21L or insertion plate 21R by the rotation of the implantation jig 20 according to the direction of travel.

[0075] Next, an example of a method for manufacturing the separation membrane module 10B of the second embodiment will be described.

[0076] [Step 1: Fabrication of double-sided membrane tape] As shown in Figure 1, the double-sided membrane tape 1A uses a long separation membrane 2 in which the membrane body 2a is supported by a support layer 2b, and the separation membranes 2 are formed by overlapping the support layers 2b in opposing directions. In the double-sided membrane tape 1A, a permeable channel material 13a that forms a permeable channel 13 may be placed between the opposing support layers 2b.

[0077] [Second Step: Planting Step] Figure 19 is a side view showing an example of a planting stand. The planting stand 22 comprises a work platform 22a and a pair of wall plates 22b erected from the work platform 22a. The planting stand 22 is erected vertically from a base plate (not shown), and grid groove plates 17 are supported facing each other inside each wall plate 22b. The planting stand 22 is configured to be able to retract on the base plate (not shown) by a drive mechanism (not shown) by one pitch of the groove portion 18a of the grid groove plate 17. The planting jig 20 shown in Figures 17 and 18 reciprocates between the left and right pair of grid groove plates 17 supported by the wall plates 22b by a drive mechanism (not shown).

[0078] In the planting process, to prevent the double-sided film tape 1A from sagging under its own weight, the workbench plate 22a supporting the grid groove plate 17 is positioned so that the edge that will become the rear end surface of the separation film laminate 11 faces downward. As a result, the grid groove plate 17 supported by the wall plate 22b has the extension direction of the groove portion 18a in the vertical direction, and the edge of the double-sided film tape 1A that will become the rear end surface of the separation film laminate 11 comes into contact with the surface of a bottom plate (not shown) during the planting process. Therefore, the surface of the bottom plate (not shown) is coated with Teflon® to reduce friction with the edge of the double-sided film tape 1A.

[0079] (0) Preparation work 1. As shown in Figure 19, set the grid groove plate 17 on the left and right wall plates 22b of the implantation base 22 with the groove portions 18a facing each other. 2. The first end of the double-sided membrane tape 1A is heat-sealed to prevent the supply side fluid from entering after the separation membrane module is formed. 3. The double-sided membrane tape 1A is passed through the slit 20a of the implantation jig 20 shown in Figures 17 and 18 from the first end side.

[0080] (1) The planting work diagrams 20 and 21 are plan views showing an example of the planting process. 1. As shown in Figure 20, when the planting jig 20 moves to the left as indicated by arrow L, the planting jig 20 rotates clockwise, the double-sided film tape 1A is placed on the insertion plate 21L, and the insertion plate 21L becomes the insertion plate for the left. In this state, when the planting jig 20 moves further to the left, the insertion plate 21L inserts the folded portion of the double-sided film tape 1A into the groove 18a of the left grid groove plate 17 while pulling out the double-sided film tape 1A. 2. The planting base 22 moves back by one pitch of the groove 18a of the grid groove plate 17. 3. As shown in Figure 21, when the planting jig 20 moves to the right as indicated by arrow R, the planting jig 20 rotates counterclockwise, the double-sided film tape 1A is placed on the insertion plate 21R, and the insertion plate 21R becomes the insertion plate for the right. In this state, as the implantation jig 20 moves further to the right, the insertion plate 21R inserts the folded portion of the double-sided film tape 1A into the groove 18a of the right grid groove plate 17 while pulling out the double-sided film tape 1A. 4. The implantation base 22 moves back by one pitch of the groove 18a of the grid groove plate 17. 5. Repeat steps 1 to 4 of the above implantation work. (2) End sealing work After implanting the double-sided film tape 1A into all the grooves 18a of the left and right grid groove plates 17, the ends of the double-sided film tape 1A are sealed by heat fusion.

[0081] [Third Step: Attachment Plate Step] Figure 22 is a front view showing an example of a laminate of double-sided film tape, Figure 23 is a left (right) side view showing an example of a laminate of double-sided film tape, and Figure 24 is a left (right) side view of the main part showing an example of a laminate of double-sided film tape. The left and right side views are the same. Figure 25 is a cross-sectional view taken along line C-C in Figure 24, showing an example of the permeable channel formation step.

[0082] 0. The upper plate 23a and lower plate 23b are attached to the laminate 11B of long double-sided film tape 1A supported on the grid groove plate 17 in a folded form, and the wall plate 22b is removed and the lower plate 23b is placed facing downwards. 1. The folds of the double-sided film tape 1A protruding from the groove portion 18a of the grid groove plate 17 toward the grid 19 are scraped off to open the outlet of the permeable flow path 13 between the opposing support layers 2b shown in Figure 1. At this time, the folds can be efficiently scraped off by inserting a cutting tool 24 between the grid 19 and moving the tip of the cutting tool 24 from top to bottom along the grid 19. In this case, it is not possible to scrape off the folds of the double-sided film tape 1A protruding from the groove portion 18a directly below the grid 19, but this is not a major problem as the permeable fluid directed toward this part will go toward the outlets that open at both ends of the grid. 2. Adhesive is applied to the frames 17a of the left and right grid groove plates 17 and the collection plate 14 is bonded without any gaps.

[0083] [Fourth Step: Sealing Process near the Assembly Plate] Figure 26 is a cross-sectional view showing an example of the sealing process near the assembly plate, and Figure 27 is a cross-sectional view showing an example of the process of securing a gap between the double-sided film tapes in the sealing process near the assembly plate.

[0084] There is a possibility that a small gap may occur between the groove 18a of the grid groove plate 17 and the double-sided film tape 1A, and when the double-sided film tape 1A is inserted into the groove 18a with the insertion plates 21L and 21R, the folded inner film body 2a may be damaged by the insertion plates 21L and 21R. To prevent the supply fluid from entering the collection plate 14 through such gaps and damage, a sealing process is performed near the collection plate 14.

[0085] 1. Place the left collection plate 14 with the bottom facing down. 2. Insert a comb-shaped spacer (not shown) between the double-sided film tapes 1A inserted into the grid groove plate 17. The spacing between the stacked double-sided film tapes 1A is wider in the area where the groove plate 18 is provided than in the area where it is folded and inserted into the groove 18a. Therefore, a simple method is to place a pair of spacers, each with comb sections formed at twice the pitch of the number of layers of the double-sided film tape 1A, into the void 18b near the groove 18 of the left grid groove plate 17 and the void 18b near the groove 18 of the right grid groove plate 17, respectively, and then move and combine them to create a spacer with comb sections formed at a pitch matching the number of layers of the double-sided film tape 1A. 3. Immerse the collection plate 14 together with the spacer to inject the sealant by immersing it in a sealing tank containing a low-viscosity liquid sealant, and then tilt the spacer to push the sealant 25 to the desired depth. In this case, a thin layer of sealant will adhere to the surface of the collection plate 14. However, if the sealant adhering to the collection plate 14 is a cosmetic issue, the sealant can be wiped off after the collection plate 14 is removed from the tank.

[0086] [Step 5: Sealing of Front and Rear End Faces] Figure 28 is a perspective view of the main part showing an example of the sealing of front and rear end faces. The main purpose of the sealing of front and rear end faces of the separation membrane laminate 11 is to seal the permeable flow channels 13 exposed on the front and rear end faces of the separation membrane laminate 11 with a sealing material, but it also simultaneously ensures that the supply flow channels 12 are spaced at equal pitches and that their strength is increased.

[0087] 1. Using a comb-shaped spacer (not shown), a through-comb spacer 26a is attached, which penetrates from the front end surface 11Fr to the rear end surface (not shown), ensuring a gap between the double-sided film tapes 1A. Since there is no negative pressure in the supply-side flow path 12 and the flow path is straight, it is sufficient to attach the through-comb spacers 26a at intervals of approximately 20 cm. 2. On the end surface of the supply-side flow path 12 on the front end surface 11Fr of the separation film laminate 11, primer is applied at 30 mm intervals to form end spacers 26b made of adhesive at 30 mm intervals in the left-right direction, thereby improving the wettability of that area. 3. By selective end-face sealing of method 1 described above, the permeate-side flow path 13 is sealed, and adhesive is allowed to penetrate approximately 2 mm from the end surface into the area where primer was applied for the supply-side flow path 12, thereby forming end spacers 26b for the supply-side flow path 12 made of adhesive. 4. The rear end surface of the separation film laminate 11 is treated similarly in steps 2 and 3 above.

[0088] As described above, when a supply fluid is supplied to the separation membrane module 10B under pressure from the supply channel 12 which opens to the front end surface 11Fr of the separation membrane laminate 11, the supply fluid moves backward through the supply channel 12. The permeate fluid that has passed through the separation membrane 2 shown in Figure 1 flows left and right through the permeate channel 13 in the double-sided membrane tape 1A, collects in the left and right collection plates 14, and flows out from the permeate fluid outlet 14a of the collection plate 14. Meanwhile, the supply fluid is concentrated and discharged from the rear end surface of the separation membrane laminate 11.

[0089] Furthermore, in the separation membrane module 10B, the long double-sided membrane tape 1A is inserted into the grooves 18a of the left and right grid groove plates 17 and laminated, so the equivalent of four conventional separation membrane tapes is laminated at once. In addition, by continuously laminating the long double-sided membrane tape 1A without cutting it beforehand, and by forming the spacers that form the supply-side flow path 12 and sealing the front and rear end faces of the separation membrane laminate 11 all at once after lamination, the separation membrane module can be manufactured at a very high speed.

[0090] In the above example, the external dimensions of the separation membrane laminate 11 are roughly cubic with sides slightly over 50 cm, and a double-sided membrane tape 1A with a thickness of 0.5 mm and a front-to-back width of slightly less than 500 mm is used in the form of a long tape 250 m in length, equivalent to 500 leaves. The channel thickness of the supply channel 12 is 0.5 mm, the leaf spacing is 1.0 mm, and 250 through grooves 18a are formed in the grid groove plate 17 at 2 mm intervals. By planting the double-sided membrane tape 1A at 2 mm intervals in the 250 through grooves 18a of the grid groove plate 17, which is slightly over 500 mm square and placed upright facing each other at approximately 500 mm intervals, a rectangular parallelepiped separation membrane laminate 11 is formed.

[0091] <First Modified Example of the Separation Membrane Module of the Second Embodiment> Figure 29 is a side cross-sectional view showing a first modified example of the separation membrane module of the second embodiment. In the separation membrane module 10B(1) of the first modified example of the second embodiment, both the left and right sides of the separation membrane laminate 11 are supported by grid groove plates 17, and a collection plate 14 is attached to only one side of the separation membrane laminate 11, for example, only to the left end face 11Le side.

[0092] On the side of the separation membrane laminate 11 where the aggregation plate 14 is not used, the outer part of the double-sided membrane tape 1A protruding from the groove portion 18a of the grid groove plate 17 is not scraped off, and a reinforcing plate is used in place of the aggregation plate 14 to reinforce the strength as needed. Although the flow resistance of the permeate side flow path 13 becomes larger relative to the separation membrane module 10B, the side from which the permeate side fluid is extracted is limited to only one side where the aggregation plate 14 is attached, which may be effective in terms of installation.

[0093] <Second Modification of the Separation Membrane Module of the Second Embodiment> Figure 30 is a side cross-sectional view showing a second modification of the separation membrane module of the second embodiment. In the separation membrane module 10B(2) of the second modification of the second embodiment, only one side of the separation membrane laminate 11, for example, only the left end face 11Le side, is supported by the grid groove plate 17, and the aggregation plate 14 is attached only to the side supported by the grid groove plate 17.

[0094] In the separation membrane module 10B(2), for example, the double-sided membrane tape 1A is not supported by the grid groove plate 17 on the right end face 11Re side, so it is conceivable that the double-sided membrane tape 1A will spread in the stacking direction due to the repulsive force of the double-sided membrane tape 1A. However, if the separation membrane laminate 11 is covered from the right end face 11Re side with a U-shaped enclosure plate 27 and the enclosure plate 27 is attached to the grid groove plate 17 on the left end face 11Le side, the shape will be stabilized.

[0095] In the separation membrane module 10B(2), the double-sided membrane tape 1A is not inserted into the grid groove plate 17 on one side of the separation membrane laminate 11, thus avoiding damage to the membrane body due to insertion into the grooves. Furthermore, if the surface of the membrane body becomes dirty and the separation efficiency decreases, the surrounding plate 27 can be removed to easily clean the surface of the membrane body. When using the separation membrane module 10B(2), it is preferable to install it with the grid groove plate 17 side facing upwards to prevent the double-sided membrane tape 1A from sagging. Alternatively, a comb spacer for cleaning the membrane surface, which can move left and right, may be inserted between the double-sided membrane tapes 1A to allow for periodic cleaning of the membrane body surface.

[0096] <Third Modification of the Separation Membrane Module of the Second Embodiment> Figure 31 is a perspective view showing a third modification of the separation membrane module of the second embodiment, and Figure 32 is a side view showing a third modification of the separation membrane module of the second embodiment. The separation membrane module 10B(3) of the third modification of the second embodiment is configured such that the permeate side fluid flows out from the rear end surface 11Ba of the separation membrane laminate 11, and the concentrated supply side fluid flows out from the rear of the left and right end surfaces.

[0097] The separation membrane module 10B (3) uses a perforated grid groove plate 28 having outlet holes 28a for the supply side fluid instead of the grid groove plate 17, and implants a double-sided membrane tape 1A into it. The outlet holes 28a are located behind the groove portion into which the double-sided membrane tape 1A is implanted, and the opening density is such that it does not affect the implantation strength of the double-sided membrane tape 1A. In addition, the double-sided membrane tape 1A is a front-end sealed double-sided membrane tape in which the front end that becomes the front end surface 11Fr of the separation membrane laminate 11 is sealed.

[0098] Furthermore, the separation membrane module 10B(3) does not have openings created by scraping off the outer surface of the double-sided membrane tape 1A protruding from the grooves 18a of the perforated grid groove plates 28 on the left and right sides, and the aggregation plate 14 is not used. Also, the rear end surface 11Ba of the separation membrane laminate 11 is sealed only the supply side flow path 12 by selective end sealing of the method 3 described above. In addition, when in use, the left and right sides are used in an up and down orientation, and the through-comb spacer 26a shown in Figure 28 is not used.

[0099] As described above, when a supply fluid is supplied under pressure from the supply-side channel 12 which opens to the front end surface 11Fr of the separation membrane laminate 11, the concentrated supply-side fluid flows out from the rear of the perforated grid groove plates 28 on the left and right sides, and the permeate-side fluid flows out from the rear end surface 11Ba.

[0100] In the separation membrane module 10B(3), a front-end sealed double-sided membrane tape 1A is used, which seals the front end that will become the front end surface 11Fr of the separation membrane laminate 11. This tape is then embedded and laminated into the left and right perforated grid groove plates 28 having outflow holes 28a. The rear end surface 11Ba of the separation membrane laminate 11 thus manufactured is then sealed by the selective end-face sealing method 3 described above. This makes it possible to manufacture a cross-flow type rectangular separation membrane module very easily and reliably.

[0101] <Fourth Modification of the Separation Membrane Module of the Second Embodiment> Figure 33 is a perspective view showing a fourth modification of the separation membrane module of the second embodiment. In the fourth modification of the separation membrane module 10B(4) of the second embodiment, no openings are made by scraping off the outside of the double-sided membrane tape 1A protruding from the grooves of the left and right grid groove plates 17, and the collection plate 14 is also not used. Therefore, at the left end face 11Le and the right end face 11Re of the separation membrane laminate 11, the supply-side flow path and the permeate-side flow path remain blocked and nothing flows through them. In addition, the rear end face 11Ba of the separation membrane laminate 11 is sealed only to the supply-side flow path 12 by the selective end-face sealing of method 3 described above.

[0102] In the separation membrane module 10B(4) manufactured as described above, when supply fluid is supplied under pressure from the supply-side channel 12 which opens at the front end surface 11Fr of the separation membrane laminate 11, the permeate-side fluid flows out from the rear end surface 11Ba of the separation membrane laminate 11, and the supply-side fluid continues to concentrate in the channel. In other words, it becomes a total filtration type module.

[0103] <Example of configuration and manufacturing method of the separation membrane module of the third embodiment> The separation membrane module 10C of the third embodiment uses a three-end sealed double-sided membrane sheet 1C. Next, an example of a manufacturing method for the separation membrane module 10C of the third embodiment will be described.

[0104] [First step: Fabrication of a three-end sealed double-sided film sheet] Figure 34 is a plan view showing an example of a rear end unsealed double-sided film tape constituting the separation membrane module of the third embodiment, and Figure 35 is a plan view showing an example of a three-end sealed double-sided film sheet constituting the separation membrane module of the third embodiment.

[0105] 1. As shown in Figure 34, a double-sided film tape 1Ca with an unsealed rear end is manufactured, where the front end 1Fa is sealed by folding and the rear end 1Ba is left unsealed. 2. The unsealed double-sided film tape 1Ca is cut at the cutting position 1Cc to a predetermined length. The cut surface is heat-sealed at the same time as cutting. The three-end sealed double-sided film sheet 1C is oriented so that the front end 1Fa of the unsealed double-sided film tape 1Ca becomes the left end surface 1L. As a result, the left end surface 1L is sealed by folding, the front end surface 1F and the rear end surface 1B are heat-sealed, and the right end surface 1R is left unsealed, resulting in a three-end sealed double-sided film sheet 1C.

[0106] [Second Step: Lamination of 3-End Sealing Double-Sided Film Sheets] Figure 36 is a perspective view showing an example of a laminate of 3-end sealing double-sided film sheets. 1. Laminate the 3-end sealing double-sided film sheets 1C in a rectangular parallelepiped shape. The left end face 1L of each 3-end sealing double-sided film sheet 1C has a rounded (R) portion created by the fold, making it easier to adhere to the adhesive.

[0107] [Step 3: Deforming the laminate of three-end sealed double-sided film sheets into a parallelogram] Figure 37 is a front view showing an example of a state in which the laminate of three-end sealed double-sided film sheets has been deformed into a parallelogram. 1. Place the laminate of three-end sealed double-sided film sheets 1C with its rear surface facing down on a vibration table (not shown) that is tilted downwards on the left front. 2. Vibrate and shift the laminate to align the left slope and deform the laminate of three-end sealed double-sided film sheets 1C into a parallelogram-shaped laminate 11C. 3. Firmly clamp the top and bottom of the left slope of the laminate 11C with a jig.

[0108] [Step 4: Attaching the Left and Right Embedded Container Plates] Figure 38 is a perspective view showing an example of an embedded container plate. 0. Purpose of the embedded container plate: By pouring adhesive evenly into the shallow container-shaped embedded container plate 29 and inserting the left and right ends of the laminate 11C from above, the edges of the three-end sealing double-sided film sheet 1C at the left and right ends are evenly embedded in the adhesive. 1. Temporary Adhesion to the Adhesive Jig Plate Figure 39 is a front view showing the state of temporary adhesion to the adhesive jig plate, and Figure 40 is an enlarged front view of the main part showing the state of temporary adhesion to the adhesive jig plate. The adhesive jig plate 30 with washable adhesive tape 30a attached is firmly pressed against the left slope of the parallelogram-shaped laminate 11C, and the left end surface 1L of the three-end sealing double-sided film sheet 1C is adhered.

[0109] 2. Processing of the right side of the laminate (1) Figure 41 is a front view showing the laminate suspended from an adhesive jig plate. When the laminate 11C is suspended with the adhesive jig plate 30 facing upwards, gaps are created between the sheets of the three-end sealing double-sided film sheet 1C according to the angle θ of the parallelogram. If the angle θ of the parallelogram is, for example, 30°, the pitch of the three-end sealing double-sided film sheet 1C becomes twice as large. In Figure 41, the upper side corresponds to the left side of the separation film laminate, and the lower side corresponds to the right side. (2) Figures 42 and 43 are front views showing the process of accurately grasping a number of three-end sealing double-sided film sheets that are appropriately spaced apart, and Figure 44 is a top view showing the process of grasping the three-end sealing double-sided film sheets. (3) The adhesive jig plate 30 is inserted directly below the adhesive jig plate 30, with comb spacers 31a and 31b positioned at twice the pitch of the three-end sealing double-sided film sheet 1C, as shown in Figures 42 and 44. The comb spacers 31a and 31b are moved closer together and combined to form a split jig A31 which grasps the sheet. (4) The adhesive jig plate 30 is pulled diagonally upward to detach and remove it from the three-end sealing double-sided film sheet 1C. (5) Figures 45 and 46 are front views showing the process of grasping the three-end sealing double-sided film sheet. As shown in Figure 45, comb spacers 32a and 32b are inserted directly below the split jig A31 and pushed downward. As shown in Figure 46, the comb spacers 32a and 32b are moved closer together and combined to form a split jig B32 which grasps the area near the lower end of the three-end sealing double-sided film sheet 1C. (6) Figure 47 is a front view showing the process of connecting the split jigs. (6) A splitting jig A31 that grips the upper end of the three-end sealed double-sided film sheet 1C and a splitting jig B32 that grips the lower end of the three-end sealed double-sided film sheet 1C are connected by a jig plate 33. (7) The right end face (lower end) of the three-end sealed double-sided film sheet 1C is treated with a water-repellent coating. (8) Figures 48 and 49 are front views showing the process of injecting the sealing material and attaching the aggregation plate. As shown in Figure 48, a low-viscosity, short-curing hot melt is injected flat as the sealing material 35 into the split-type embedded container plate 34 from which the bottom plate can be removed. (9) The three-end sealed double-sided film sheet 1C supported by splitting jigs A31 and B32 is slowly lowered, and the tip of the three-end sealed double-sided film sheet 1C is deeply embedded and bonded to the split-type embedded container plate 34. (10) The bottom plate of the split-type embedded container plate 34 is removed, and the aggregation plate 14 is attached to the three-end sealed double-sided film sheet 1C.If a thin layer of adhesive is present on the end face of the 3-end sealing double-sided film sheet 1C, take measures such as wiping it off.

[0110] 3. Installation of the left embedded container plate (1) With the splitting jig A31 facing downwards, the three-end sealing double-sided film sheet 1C is suspended from above. (2) A low-viscosity, short-curing adhesive is poured evenly into the embedded container plate 36 as the sealing material 35, and the three-end sealing double-sided film sheet 1C is slowly lowered, deeply embedding and bonding the tip of the three-end sealing double-sided film sheet 1C to the embedded container plate 36.

[0111] [Step 5: Attachment of upper and lower plates] Figure 50 is a front view showing the process of attaching the comb spacers, and Figure 51 is a front view showing an example of a separation membrane module. (0) Place the laminate 11C of the three-end sealed double-sided membrane sheets 1C with the aggregation plate 14 attached horizontally. (1) Attach the comb spacers 37 in the appropriate places in the gaps of the three-end sealed double-sided membrane sheets 1C secured by the dividing jigs A31 and B32. (2) Remove the dividing jigs A31 and B32. (3) Attach the upper plate 23a and the lower plate 23b. (4) Adjust the position of the comb spacers 37 and temporarily bond them.

[0112] As described above, when a supply fluid is supplied under pressure from the supply-side channel 12 which opens at the front end surface 11Fr of the laminate 11C of the three-end-sealed double-sided membrane sheet 1C, the concentrated supply fluid flows out from the rear end surface, and the permeate-side fluid flows out from the collection plate 14 provided on the right side. Furthermore, if the ends of the three-end-sealed double-sided membrane sheet 1C are embedded more deeply in the segmented embedded container plate 34, the pressure resistance strength will increase accordingly.

[0113] <Example of configuration and manufacturing method of the separation membrane module of the fourth embodiment> Figure 52 is a perspective view showing an example of the separation membrane module of the fourth embodiment. In the separation membrane module 10D of the fourth embodiment, the end-face sealing double-sided membrane tape 1D is supported on the left embedded container plate 43L and the right embedded container plate 43R in a laminated configuration.

[0114] Next, an example of a method for manufacturing the separation membrane module 10D according to the fourth embodiment will be described.

[0115] [Step 1: Fabrication of front end sealing double-sided film tape] A front end sealing double-sided film tape 1D is fabricated to seal the front end face in the short direction, which is the front end face when the separation film laminate 11 is fabricated.

[0116] [Second Step: Temporary Planting] Figures 53 and 54 are cross-sectional views showing an example of a grid groove jig plate with an adhesive plate. The grid groove jig plate 39 with an adhesive plate has a wide groove 39a so as not to damage the end-face sealing double-sided film tape 1D during temporary planting. The grid groove jig plate 39 with an adhesive plate has an adhesive plate 39b on the outside of the groove 39a so as not to detach the end-face sealing double-sided film tape 1D from the groove 39a during work such as temporary planting, and as shown in Figure 54, during temporary planting described later, the folded portion 1Da of the end-face sealing double-sided film tape 1D is temporarily adhered with the adhesive 39c of the adhesive plate 39b. The grid 39d is provided between the groove 39a and the adhesive plate 39b of the grid groove jig plate 39.

[0117] 0. Preparation work A pair of adhesive plate-attached grid groove jig plates 39 are set on an elevator work platform (not shown) with the adhesive 39c of the adhesive plate 39b facing each other. The first end of the end-face sealing double-sided film tape 1D is then crushed with heat and heat-fused to seal it.

[0118] 1. Planting (1) The following explanation will replace the grid groove plate 17 shown in Figures 20 and 21 with the grid groove jig plate 39 with adhesive plate. When the planting jig 20 moves to the left as indicated by arrow L, the planting jig 20 rotates clockwise, and the end-face sealing double-sided film tape 1D is placed on the insertion plate 21L, making the insertion plate 21L the left insertion plate. In this state, when the planting jig 20 moves further to the left, the insertion plate 21L inserts the folded portion of the end-face sealing double-sided film tape 1D into the groove 39a of the left adhesive grid groove jig plate 39, while pulling out the end-face sealing double-sided film tape 1D. The folded portion 1Da of the end-face sealing double-sided film tape 1D inserted into the groove 39a is temporarily adhered by the adhesive 39c of the adhesive plate 39b. (2) The planting base 22 retracts by one pitch of the groove 39a of the adhesive grid groove jig plate 39. (3) As shown in Figure 21, when the implantation jig 20 moves to the right as indicated by arrow R, the implantation jig 20 rotates counterclockwise, the end-face sealing double-sided film tape 1D is placed on the insertion plate 21R, and the insertion plate 21R becomes the insertion plate for the right. In this state, when the implantation jig 20 moves further to the right, the insertion plate 21R inserts the folded portion of the end-face sealing double-sided film tape 1D into the groove 39a of the right adhesive plate with grid groove jig plate 39, while pulling out the end-face sealing double-sided film tape 1D. The folded portion 1Da of the end-face sealing double-sided film tape 1D inserted into the groove 39a is temporarily adhered by the adhesive 39c of the adhesive plate 39b. (4) The implantation base 22 moves back by one pitch of the groove 39a of the adhesive plate with grid groove jig plate 39. (5) Repeat steps 1 to 4 of the implantation work described above. (6) After embedding the end-face sealing double-sided film tape 1D into all the grooves 39a of the pair of adhesive plate-equipped grid groove jig plates 39, the ends of the end-face sealing double-sided film tape 1D are sealed with heat.

[0119] [Third Step: Installation of the Splitting Jig] Figures 55, 56, and 57 are front views showing the process of installing the splitting jig. (1) Insert a total of four comb spacers, A40a, 40b and B41a, 41b, into two places near the adhesive grid groove jig plate 39. (2) Combine the comb spacers A40a, 40b and B41a, 41b near the base of the adhesive grid groove jig plate 39 to form splitting jigs A40 and B41, and firmly hold the end-face sealing double-sided film tape 1D. (3) Connect the splitting jigs A40 and B41 with the fixing jig plate 42 and remove the two adhesive grid groove jig plates 39.

[0120] [Step 4: Embedding in the left and right embedded container plates] Figures 58 and 59 are front views showing the process of attaching the left and right embedded container plates. (1) With the left dividing jig 41 facing downwards, the laminate 11D of the end-face sealing double-sided film tape 1D is suspended from above. (2) Hot melt is injected evenly as the sealing material 43a into the left embedded container plate 43L, and the laminate 11D is slowly lowered, embedding the tip of the end-face sealing double-sided film tape 1D into the left embedded container plate 43L. (3) With the left dividing jig 41 facing downwards, the laminate 11D of the end-face sealing double-sided film tape 1D is suspended from above, hot melt is injected evenly as the sealing material 43a into the right embedded container plate 43R, and the laminate 11D is slowly lowered, embedding the tip of the end-face sealing double-sided film tape 1D into the right embedded container plate 43R. (4) Return the laminate 11D of the end-face sealing double-sided film tape 1D to a horizontal position and temporarily insert all the comb spacers into the front and rear surfaces.

[0121] [Step 5: Attaching the upper and lower plates] (1) Remove the dividing jig A40 and dividing jig B41. (2) Attach the upper plate 23a to the upper end surface and the lower plate 23b to the lower end surface of the laminate 11D of the end-face sealing double-sided film tape 1D.

[0122] [Step 6: Create a permeable fluid side compartment on the rear end face and open the permeable side outlet] Since the front end face is sealed using the double-sided film tape 1D, the permeable side flow path is already sealed on the front end face. On the rear end face, the entire permeable side flow path is selectively sealed, and then a permeable fluid side compartment 45 is created, sealing the supply side flow path only within this compartment and opening the permeable side flow path.

[0123] Figures 60 and 61 are rear views showing the process of forming the permeate side outlet, and Figure 62 is a perspective view showing an example of a completed separation membrane module. (1) The laminate 11D of end-face sealing double-sided membrane tape 1D is inverted so that the rear end face 11Ba is facing upward. (2) The position of the comb spacer 44 is adjusted to create a permeate fluid side compartment 45 separated by a partition wall. (3) A high-viscosity, short-curing sealing material is flowed into the permeate fluid side compartment 45. (4) After the sealing material has hardened, the end face is processed, such as by machining, to secure the permeate side flow channel outlet. Steps (3) to (4) above correspond to the selective end-face sealing of method 3 described above. (5) Both flow channel outlet plates 46 are attached. Both flow channel outlet plates 46 have a permeate side fluid outlet 46a formed in the center, corresponding to the permeate fluid side compartment 45, and supply side fluid outlets 46b formed on both sides thereof.

[0124] As described above, when a supply fluid is supplied under pressure from the supply-side channel 12 which opens at the front end surface 11Fr of the laminate 11D of the end-face sealed double-sided membrane tape 1D, the concentrated supply fluid and permeate fluid flow out from the permeate-side fluid outlet 46a and the supply-side fluid outlet 46b at the rear end surface 11Ba of the separation membrane module 10D.

[0125] <Example of configuration and manufacturing method of the separation membrane module of the fifth embodiment> Figure 63 is a perspective view showing an example of the separation membrane module of the fifth embodiment. In the separation membrane module 10E of the fifth embodiment, the end-face sealing double-sided membrane tape 1D is supported on the embedded container plate 38 in a laminated form.

[0126] Next, an example of a method for manufacturing the separation membrane module 10E according to the fifth embodiment will be described.

[0127] [First step: End-face sealing double-sided film tape production] This is the same as the first step of the manufacturing method of the separation membrane module 10D in the fourth embodiment. [Second step: Temporary implantation] This is the same as the second step of the manufacturing method of the separation membrane module 10D in the fourth embodiment. [Third step: Installation of the dividing jig] This is the same as the third step of the manufacturing method of the separation membrane module 10D in the fourth embodiment.

[0128] [Fourth step: Attachment of collection plate to the left side] Figure 64 is a front view showing the process of opening the permeable channel, and Figure 65 is an enlarged front view of the main part showing the process of opening the permeable channel. 1. Opening the permeable channel (1) A splitting jig 47, which is thinner than the splitting jig A41, is attached to the outside of the splitting jig A41 on the left. (2) The protruding portion of the folded part 1Da of the end-face sealing double-sided film tape 1D is cut by moving the cutting edge of the blade 47a from top to bottom along the splitting jig 47. (3) The splitting jig 47 is removed, and thin vertical spacers (not shown) for ensuring even gaps are attached to the left end of the laminate 11E of the end-face sealing double-sided film tape 1D at key locations. The thin vertical spacers are attached only at key locations as they can also obstruct the penetration of adhesive. (4) A strong water-repellent treatment is applied to the cut surface of the end-face sealing double-sided film tape 1D.

[0129] 2. Figure 66 is an enlarged front view of the main part showing the process of attaching the embedded container plate, and Figure 67 is an enlarged front view of the main part showing the process of attaching the collection plate. (1) With the left dividing jig B41 facing downwards, the laminate 11E of the end-face sealing double-sided film tape 1D is suspended from above. (2) The hardening adhesive is poured flat as the sealing material 48a into the bottomed left embedded container plate 48L, and the laminate 11E is slowly lowered, deeply embedding the tip of the end-face sealing double-sided film tape 1D into the bottomed left embedded container plate 48L. (3) After the sealing material 48a has hardened, the bottom plate of the bottomed left embedded container plate 48L is removed, the end face is processed as necessary to secure the permeable flow channel outlet, and the collection plate 14 is attached to the left embedded container plate 48L.

[0130] [Step 5: Embedding in the right-side embedded container plate] With the right-side dividing jig A40 facing downwards, the laminate 11E of the end-face sealing double-sided film tape 1D is suspended from above, and the tip of the end-face sealing double-sided film tape 1D of the laminate 11E is embedded in the right-side embedded container plate 48R, into which hot melt has been injected flat as a sealing material.

[0131] [Step 6: Upper and Lower Plate Attachment] (1) Return the laminate 11E of end-face sealing double-sided film tape 1D to a horizontal position and temporarily insert all comb spacers into the front and rear surfaces. (2) Remove the dividing jig A40 and dividing jig B41. (3) Attach the upper plate 23a to the upper end surface of the laminate 11E of end-face sealing double-sided film tape 1D and attach the lower plate 23b to the lower end surface. (4) Adjust the position of the comb spacers (not shown) and temporarily bond them.

[0132] The separation membrane module 10E manufactured as described above can be used for ultra-high pressure applications by increasing the depth of the left embedded container plate 48L, thoroughly embedding it with sealing material 48a, and using a highly pressure-resistant aggregation plate 14.

[0133] <Example of configuration and manufacturing method of the separation membrane module of the sixth embodiment> In the separation membrane module 10F of the sixth embodiment, an end-face sealing double-sided film tape 1D is used to seal the short-side end faces that become the front and rear end faces when the separation membrane laminate 11 is manufactured. Next, an example of a manufacturing method for the separation membrane module 10F of the sixth embodiment will be described.

[0134] Figures 68, 69, and 70 are plan views showing an example of a splitting jig. The splitting jig 50 is composed of comb spacers 50a and 50b that are half-pitch relative to the spacing of the end-face sealing double-sided film tape 1D. The comb spacers 50a and 50b are equipped with a comb plate 50c into which the end-face sealing double-sided film tape 1D is inserted, and a slit 50d into which the comb plate 50c is inserted. In the splitting jig 50 in Figure 70, the comb plate 50c is thicker than in Figure 69, and the clamping force on the end-face sealing double-sided film tape 1D is stronger.

[0135] [First step: End-face sealing double-sided film tape production] The first step is the same as the first step of the manufacturing method for the separation membrane module 10D of the fourth embodiment, except that an end-face sealing double-sided film tape 1D is produced to seal the short-side end faces that become the front and rear end faces when the separation membrane laminate 11 is manufactured.

[0136] [Second Step: Implantation] 1. Figure 71 of the base plate device is a front view showing an example of a base plate device for implanting end-face sealing double-sided film tape. In Figure 71, the definitions of front, back, left, right, up, and down are as shown. The base plate device 51 has a dividing jig 50 mounted so as to be movable in the front-rear direction. The base plate device 51 also has an adhesive plate 53 attached to an up-and-down movable plate 52. Furthermore, the base plate device 51 is provided so as to be movable in the up-and-down direction by an insertion head 54 driven by a drive unit (not shown).

[0137] 2. Preparation for implantation (1) Move the base plate device 51 to the implantation position. (2) Heat seal the starting end of the end-face sealing double-sided film tape 1D.

[0138] 3. Insertion of end-face sealing double-sided film tape Figures 72 to 76 are front views showing the process of inserting end-face sealing double-sided film tape. The base plate device 51 retracts to the right one step at a time each time an end-face sealing double-sided film tape 1D is inserted. (1) Figure 72 shows the state in which the insertion head 54 has finished inserting the Nth loop Ru of the end-face sealing double-sided film tape 1D into the Nth groove formed between the comb plates 50c. (2) From this state, as shown in Figure 73, the friction gate 55 of the insertion head 54 opens, and the insertion head 54 retracts upward while sliding the end-face sealing double-sided film tape 1D. The loop retaining plate 56 also begins to retract upward. (3) The base plate device 51 retracts one step. As shown in Figure 74, the insertion head 54 retracts upward and one loop length of end-face sealing double-sided film tape 1D is pulled out, the insertion head 54 reaches top dead center and the friction gate 55 closes. As the loop retaining plate 56 retracts upward and moves out from between the loops Ru, the loops Ru bulge to the left. At this point, the bulging retaining plate 57 begins to move in the direction of pressing down on the loops Ru, and air injection is started in the direction of pressing down on the loops Ru. (4) As shown in Figure 75, the insertion head 54 begins to move forward downward while holding the end-face sealing double-sided film tape 1D with the friction gate 55, and directly below the insertion head 54, the end-face sealing double-sided film tape 1D shifts to the right due to its curling or the injection of air, and the next loop Ru begins to form. Also, the loop retaining plate 56 moves forward downward and enters to the left of the Nth loop Ru. (5) As shown in Figure 76, the N+1th loop Ru is formed between the insertion head 54 and the loop retaining plate 56. As the insertion head 54 moves forward downward, the fold in the end-face sealing double-sided film tape 1D becomes sharper at the tip of the insertion head 54. (6) The insertion head 54 inserts the fold of the end-face sealing double-sided film tape 1D of the (N+1)th loop Ru into the (N+1)th groove formed between the comb plates 50c. (7) After planting is complete, the end of the tape is heat-sealed.

[0139] [Third Step: Embedding] (1) Tighten the comb spacers 50a and 50b of the dividing jig 50 to set it to hold mode for the end-face sealing double-sided film tape 1D. (2) Move the base plate device 51 to the embedding work position. (3) Lower the vertically movable plate 52. In the embedding step described above, the end-face sealing double-sided film tape 1D is held by the adhesive plate 53, so the adhesive plate 53 floats in the air. (4) Figure 77 is an enlarged front view of the main part showing the step of cutting the end-face sealing double-sided film tape. The cutting blades 58 corresponding to the number of loops Ru of the end-face sealing double-sided film tape 1D are inserted into the fold portion 1D of the end-face sealing double-sided film tape 1D to cut the fold portion 1D, and at the same time the adhesive plate 53 is removed. (5) Figure 78 is an enlarged plan view of the main part showing the step of inserting the vertical comb spacer. If necessary, narrow, short vertical comb spacers 59 are inserted at key points between the end-face sealing double-sided film tapes 1D. However, the vertical comb spacers 59 are not used excessively as they obstruct the entry of the adhesive. (6) Figure 79 is an enlarged front view of the main part showing the process of embedding the end-face sealing double-sided film tape in the embedded container plate. Low viscosity adhesive 60a is injected into the embedded container plate 60 and attached to the vertically movable plate 52. (7) The embedded container plate 60 is raised and embedded deeply so that the end of the end-face sealing double-sided film tape 1D touches the bottom. (8) Figure 80 is an enlarged front view of the main part showing the process of opening the permeable side channel. After the adhesive 60a has hardened, the lower part of the embedded container plate 60 is cut parallel to the bottom plate together with the end-face sealing double-sided film tape 1D to open the permeable side channel. (9) The collection plate 14 is attached.

[0140] [Fourth Step: Final Step] Figure 81 is a front view showing the step of placing a frame over the laminate of end-face sealing double-sided film tape, and Figure 82 is a front view showing an example of a separation membrane module of the sixth embodiment. (1) A U-shaped frame 61 is placed over the laminate 11F of end-face sealing double-sided film tape 1D. (2) Comb spacers 62 are placed at various points between the end-face sealing double-sided film tape 1D. (3) The comb spacers 50a and 50b of the splitting jig 50 are opened and the splitting jig 50 is removed from the laminate 11F of end-face sealing double-sided film tape 1D. (4) The frame 61 is connected to the embedded container plate 60. (5) If necessary, the right end of the end-face sealing double-sided film tape 1D is bonded to the inside of the right plate 61R of the frame 61.

[0141] <Example of Configuration and Manufacturing Method of the Separation Membrane Module of the Seventh Embodiment> The separation membrane module 10G of the seventh embodiment is manufactured in the same way as the separation membrane module 10F of the sixth embodiment, with a partial modification to the third step, the embedding step.

[0142] Figure 83 is a cross-sectional view showing an example of an embedded container aggregation plate. In the separation membrane module 10G of the seventh embodiment, a bottomed embedded container aggregation plate 63 is used, which is formed by combining an embedded container plate and an aggregation plate. Furthermore, a method is employed in which work can be done in a short time without cutting the hardened adhesive part by using a liquid that has a higher specific gravity than the adhesive used, separates completely, and has poor wettability between the end-face sealing double-sided membrane tape 1D and the support layer (not shown) and the permeable flow channel material, such as mercury or certain mineral oils (referred to as non-adhesive liquids).

[0143] [First step: End-face sealing double-sided film tape manufacturing] This is the same as the first step of the manufacturing method for the separation membrane module 10F of the sixth embodiment (separation membrane module 10D of the fourth embodiment).

[0144] [Second step: Planting] This is the same as the second step of the manufacturing method for the separation membrane module 10F of the sixth embodiment.

[0145] [Third step: Embedding] Steps (1) to (5) are the same as the third step of the manufacturing method for the separation membrane module 10F of the sixth embodiment.

[0146] (6) The adhesive used on the cut surface of the end-face sealing double-sided film tape 1D is subjected to a water-repellent treatment. (7) Figure 84 is a cross-sectional view showing the process of injecting the non-adhesive liquid and adhesive into the embedded container collection plate. A stopper 63b is inserted into the outlet 63a of the embedded container collection plate 63 to seal it, a small amount of non-adhesive liquid 64a is injected into the embedded container collection plate 63, and then adhesive 64b is injected on top of it. (8) The embedded container collection plate 63 is raised using a base plate device 51 or the like shown in Figure 71, and the end of the end-face sealing double-sided film tape 1D is deeply embedded so that it touches the bottom of the embedded container collection plate 63. At this time, the end of the end-face sealing double-sided film tape 1D is immersed in the non-adhesive liquid 64a. (9) Figure 85 is a cross-sectional view showing the process of draining the non-adhesive liquid. After the adhesive has hardened, the stopper 63b of the embedded container collection plate 63 is removed and the non-adhesive liquid 64a is drained. As a result, the end (cut surface) of the end-face sealing double-sided film tape 1D is exposed inside the embedded container aggregation plate 63.

[0147] [Fourth step: Final step] This is the same as the fourth step of the manufacturing method for the separation membrane module 10F of the sixth embodiment.

[0148] <Example of configuration and manufacturing method of the separation membrane module of the eighth embodiment> The separation membrane module 10H of the eighth embodiment uses an end-face sealing double-sided membrane tape 1H. Next, an example of a manufacturing method for the separation membrane module 10H of the eighth embodiment will be described.

[0149] [Step 1: End-face sealing double-sided film tape fabrication] 1. Fabrication of permeable spacer using parallel irregular hole nozzle Figure 86 is a perspective view showing an example of a parallel irregular hole nozzle used to fabricate a spacer, and Figures 87, 88, and 89 are perspective views showing an example of a spacer fabricated using a parallel irregular hole nozzle.

[0150] By melting and extruding plastic resin using a parallel-type irregular-hole nozzle 65 nozzle, which is an irregular-hole nozzle 65a arranged in parallel, it is possible to continuously manufacture thin spacers of various cross-sectional shapes.

[0151] For example, as shown in Figure 86, by using a parallel irregular-shaped nozzle 65 in which irregular-shaped nozzles 65a with cross-shaped outlets are arranged in parallel, a thin spacer (permeable spacer) 66 with a continuous cross-shaped cross section can be manufactured, as shown in Figure 87. The length direction of the continuously manufactured permeable spacer 66 is the flow direction of the permeable fluid. Furthermore, depending on the shape of the outlet of the irregular-shaped nozzle 65a, spacers (permeable spacers) 66b and 66c with shapes such as those shown in Figures 88 and 89 can be manufactured, and spacers with depletion rates and pressure resistance tailored to the purpose can be manufactured.

[0152] 2. Manufacturing diagram 90 of the end-sealed double-sided film tape using spacers is a cross-sectional view showing an example of an end-sealed double-sided film tape. A separation membrane 2, in which the film body 2a is supported by a support layer 2b, is placed with the support layers 2b facing each other, and a permeable spacer 66 is placed between the opposing support layers 2b to seal the front and rear ends (both ends in the short direction) of the separation membrane 2, thereby manufacturing an end-sealed double-sided film tape 1H.

[0153] [Second Step: Implantation] 1. Figure 91 of the base plate device is a front view showing an example of a base plate device for implanting end-face sealing double-sided film tape. In Figure 91, the definitions of front, back, left, right, up, and down are as shown. The base plate device 67 has a wall portion 67a erected at one end. The base plate device 67 is provided so that it can be moved back forward one step at a time for each implantation.

[0154] 2. Figure 92 is a rear view of a gridded grooved adhesive board, showing an example of a gridded grooved adhesive board; Figure 93 is a rear perspective view showing an example of an adhesive board; Figure 94 is a cross-sectional view taken along line D-D in Figure 92, showing an example of a gridded grooved adhesive board; and Figure 95 is a cross-sectional view taken along line E-E in Figure 92, showing an example of a gridded grooved adhesive board.

[0155] The grooved adhesive plate 68 includes a guide plate 69 that constitutes the groove portion 69a and a grid 70 that supports the guide plate 69. The adhesive plate 71 is fitted between the grid 70 of the grooved adhesive plate 68. The adhesive plate 71 has adhesive tape 71b on the surface of the plate portion 71a. The adhesive plate 71 is fitted with the adhesive tape 71b facing the groove portion 69a, so that the adhesive tape 71b is exposed in the groove portion 69a. The grooved adhesive plate 68 temporarily adheres the end-face sealing double-sided film tape 1H with the adhesive tape 71b to prevent the end-face sealing double-sided film tape 1H from coming off the groove portion 69a. The adhesive tape 71b is a strong adhesive double-sided tape whose adhesive effect is completely restored when washed with water, and can be used many times because the adhesive strength is restored.

[0156] 3. Figure 96 is a plan view showing an example of an insert plate with a friction plate, and Figure 97 is a side view showing an example of an insert plate with a friction plate. The insert plate with a friction plate 72 comprises an insert plate 72a and a friction plate 72b. The insert plate 72a is thin, and a gap is formed between the insert plate 72a and the friction plate 72b through which the end-face sealing double-sided film tape 1H passes. The friction plate 72b has a hole 72c through which the end-face sealing double-sided film tape 1H that is placed between the insert plate 72a and the friction plate 72b passes. The insert plate with a friction plate 72 is biased by a spring 72d in the direction in which the friction plate 72b approaches the insert plate 72a. When the insertion plate 72 with the friction plate is retracted as indicated by arrow Rd, the end-face sealing double-sided film tape 1H slides against the insertion plate 72a, and when it is advanced as indicated by arrow Fd, the end-face sealing double-sided film tape 1H is locked against the insertion plate 72a by friction between the end-face sealing double-sided film tape 1H and the friction plate 72b.

[0157] 4. Figures 98 and 99 show the configuration in which end-face sealing double-sided film tape is embedded in a grooved adhesive plate with a grid using an insert plate with a friction plate. These are enlarged cross-sectional views of the main parts showing the configuration in which end-face sealing double-sided film tape is embedded in a grooved adhesive plate with a grid using an insert plate with a friction plate. The insert plate 72a of the insert plate 72 with a friction plate is inserted into the fold portion 1Ha of the folded end-face sealing double-sided film tape 1H, and the insert plate 72 with a friction plate is advanced, so that the end-face sealing double-sided film tape 1H is inserted into the groove portion 69a of the grooved adhesive plate 68, and the fold portion 1Ha is temporarily adhered to the adhesive tape 71b. Because the fold portion 1Ha is temporarily adhered to the adhesive tape 71b, even when the insert plate 72 with a friction plate is retracted, the fold portion 1Ha of the end-face sealing double-sided film tape 1H is temporarily held by the adhesive tape 71b.

[0158] 5. Preparation for planting (1) Figure 100 is a front view showing the process of attaching the gridded grooved adhesive plate to the base plate device. The gridded grooved adhesive plate 68 is laid flat on the base plate of the base plate device 67 with the groove portion 69a facing upwards. (2) The starting end of the end-face sealing double-sided film tape 1H is heat-sealed.

[0159] 6. Embedding the end-face sealing double-sided film tape Figures 101 to 104 are front views showing the process of embedding the end-face sealing double-sided film tape. The base plate device 67 retracts to the right one step at a time each time an end-face sealing double-sided film tape 1H is embedded. The overhang retaining plate 67b is provided along the movement path of the insertion plate 72 with friction plate, and prevents the end-face sealing double-sided film tape 1H from overhanging to the left of the insertion plate 72 with friction plate.

[0160] (1) Figure 101 shows the state in which the insertion plate 72 with friction plate has finished inserting the Nth loop Ru of the end-face sealing double-sided film tape 1H into the Nth groove 69a of the grid groove adhesive plate 68. (2) From this state, the insertion plate 72 with friction plate retracts upward. When the insertion plate 72 with friction plate retracts, the end-face sealing double-sided film tape 1H slides against the insertion plate 72a, which prevents the end-face sealing double-sided film tape 1H inserted into the groove 69a of the grid groove adhesive plate 68 from coming out. (3) As shown in Figure 102, when the insertion plate 72 with friction plate reaches its top dead center, a length of one loop of end-face sealing double-sided film tape 1H is secured between the insertion plate 72 with friction plate and the groove 69a. (4) The base plate device 67 moves back one step, and as shown in Figure 103, the position of the N+1th groove 69a of the grid grooved adhesive plate 68 is aligned with the forward position of the friction plate insertion plate 72. The friction plate insertion plate 72 also begins to move forward downward. When the friction plate insertion plate 72 moves forward, the friction between the end-face sealing double-sided film tape 1H and the friction plate 72b locks the end-face sealing double-sided film tape 1H against the insertion plate 72a. As a result, when the friction plate insertion plate 72 begins to move forward downward, the end-face sealing double-sided film tape 1H bends to the right due to the overhang retaining plate 67b and the winding tendency of the end-face sealing double-sided film tape 1H, and begins to form the N+1th loop. The end-face sealing double-sided film tape 1H may also be bent to the right by using an air jet. (5) As shown in Figure 104, the friction plate insertion plate 72 enters between the overhang retaining plate 67b and the Nth loop Ru, forming the N+1th loop Ru. (6) Return to (1) and repeat (1) to (5) until the implantation of the end-face sealing double-sided film tape 1H is complete. After the implantation is complete, the end of the end-face sealing double-sided film tape 1H is heat-sealed. (7) Figure 105 is a front view showing the process of covering the laminate of end-face sealing double-sided film tape with a frame. The laminate 11H of end-face sealing double-sided film tape 1H, which has been temporarily adhered to the adhesive plate 71 manufactured in the above process and is supported by the grooved adhesive plate 68, is covered with a U-shaped frame 73.

[0161] [Third Step: Cutting the End-Sealing Double-Sided Film Tape] Figures 106 and 107 are side views showing the process of cutting the end-sealing double-sided film tape. (1) As shown in Figure 106, in the laminate 11H of the end-sealing double-sided film tape 1H, the dividing holder 74 and the dividing cutter 75 are inserted near the base of the grid-grooved adhesive plate 68 and tightened firmly to remove the grid-grooved adhesive plate 68. (2) As shown in Figure 107, the lower end of the dividing cutter 75 is used as a fixing tooth to cut the folded portion of the end-sealing double-sided film tape 1H, and the dividing cutter 75 is removed.

[0162] [Step 4: Embedding] 1. Pre-treatment: The end face of the cut end-face sealing double-sided film tape 1H may be pre-treated as needed. (1) No pre-treatment. (2) Treatment to improve the wettability between the embedding adhesive and the surface of the end-face sealing double-sided film tape 1H as needed. (3) Treatment to reduce the wettability of the cut end face of the end-face sealing double-sided film tape 1H to the adhesive to be used. (4) To prevent the adhesive or non-adhesive liquid from penetrating the end face of the end-face sealing double-sided film tape 1H, a small amount of liquid that does not react with the adhesive and has high wettability with the end face of the end-face sealing double-sided film tape 1H is pre-soaked into the end face. This will be removed in post-treatment. Note that if a liquid that evaporates easily is used, post-treatment will not be necessary. (5) The end face of the end-face sealing double-sided film tape 1H is lightly sealed with adhesive beforehand. This will be removed in post-treatment. (6) The liquid used in pre-treatment (4) is lightly applied on top of the adhesive and allowed to soak in before the adhesive. (7) Others

[0163] 2. Embedding Process (1) Figure 108 is a cross-sectional view showing the process of injecting non-adhesive liquid and adhesive into the embedded container collection plate. A stopper 76b is inserted into the outlet 76a of the embedded container collection plate 76 to seal it, and a thin layer of non-adhesive liquid 77a with a high specific gravity is injected into the embedded container collection plate 76. The non-adhesive liquid 77a is, for example, liquid metallic gallium. (2) Adhesive 77b is injected into the embedded container collection plate 76 into which the non-adhesive liquid 77a has been injected. The adhesive 77b rests on top of the layer of non-adhesive liquid 77a. (3) Figure 109 is a cross-sectional view showing the process of embedding the end-face sealing double-sided film tape. The end of the laminate 11H of the end-face sealing double-sided film tape 1H is placed into the embedded container collection plate 76, and it is embedded deeply so that the cut end of the end-face sealing double-sided film tape 1H touches the bottom of the embedded container collection plate 76. At this time, the end face of the end-face sealing double-sided film tape 1H is immersed in the non-adhesive liquid 77a. (4) After the adhesive 77b has hardened, the stopper 76b of the embedded container collection plate 76 is removed and the non-adhesive liquid 77a is drained. (5) Post-treatment corresponding to the pre-treatment is performed as necessary. Post-treatment for the pre-treatments in (4) to (6) is performed, for example, by drawing a vacuum from the permeable fluid outlet (not shown) and removing the material that has blocked the end face of the end-face sealing double-sided film tape 1H. (6) Figure 110 is a cross-sectional view showing the process of removing the divided holder. The divided holder 74 is removed from the laminate 11H of the end-face sealing double-sided film tape 1H that has been bonded to the embedded container collection plate 76 with adhesive 77b.

[0164] [Step 5: Final Step] Figure 111 is a front view showing an example of a separation membrane module according to the eighth embodiment. (1) A frame 73 is placed over the laminate 11H of end-face sealing double-sided membrane tape 1H, and the frame 73 is connected to the embedded container aggregation plate 76. (2) Comb spacers 78 are inserted at various points between the end-face sealing double-sided membrane tape 1H. This completes the separation membrane module 10H.

[0165] <First Modified Example of the Separation Membrane Module of the Eighth Embodiment> Figure 112 is an enlarged cross-sectional view of the main part showing the first modified example of the separation membrane module of the eighth embodiment. In the separation membrane module 10H(1) of the first modified example of the eighth embodiment, the cavity 76c between the adhesive 77b and the embedded container aggregation plate 76 is filled with granular material 79 to enhance pressure resistance. Specifically, the following step is added after the step (2) of the fifth step described above.

[0166] (1) Turn the embedded container collection plate 76 upwards. (2) Lightly fill the cavity 76c of the embedded container collection plate 76 with small diameter granules 79a. (3) Completely fill the remaining cavity 76c of the embedded container collection plate 76 with large diameter granules 79b.

[0167] <Second Modification of the Separation Membrane Module of the Eighth Embodiment> Figure 113 is an enlarged cross-sectional view of the main part showing a second modification of the separation membrane module of the eighth embodiment. In the separation membrane module 10H(2) of the second modification of the eighth embodiment, the embedded container plate 76H1 and the aggregation plate 76H2 are used independently.

[0168] Specifically, the end of the laminate 11H of the end-face sealing double-sided film tape 1H is embedded in the adhesive 77b of the embedded container plate 76H1. Then, the end-face sealing double-sided film tape 1H is cut slightly above the bottom of the embedded container plate 76H1, along with the hardened adhesive 77b parallel to the bottom, to open the permeable flow path. Subsequently, a collection plate 76H2 having a flow hole 76a1 with many beams 76Ha on its bottom surface is connected to the embedded container plate 76H1 from which the bottom has been cut.

[0169] In the separation membrane module 10H(2), even if a large negative pressure is created in the space between the hardened adhesive layer 77b and the bottom plate of the aggregation plate 76H2, the adhesive layer 77b is supported by the beam 76Ha and can withstand the high pressure. In the part where the beam 76Ha is present, the permeable flow path at the end of the end-face sealing double-sided membrane tape 1H is blocked, but since the permeable fluid flows out while avoiding the beam 76Ha, this does not pose a major problem.

[0170] <Third Modification of the Separation Membrane Module of the Eighth Embodiment> Figure 114 is an enlarged cross-sectional view of the main part showing a third modification of the separation membrane module of the eighth embodiment. The separation membrane module 10H(3) of the third modification of the eighth embodiment uses the embedded frame 76H3 and the collection plate 76H2 independently. In addition, a container holder 80, which is a jig on which the embedded frame 76H3 is placed, is used.

[0171] Figures 115 to 119 are enlarged cross-sectional views of the main parts showing the fourth step, the embedding step, in the separation membrane module of the third modified example of the eighth embodiment. The container 80 has a bottom and has a frame seat 80a on its inner surface on which the embedding frame 76H3 is placed.

[0172] (1) As shown in Figure 115, pour the non-adhesive liquid 81a into the container 80 to about half the height of the frame seat 80a. (2) As shown in Figure 116, place the embedded frame 76H3 into the container 80 and place it on the frame seat 80a. (3) As shown in Figure 117, pour an appropriate amount of adhesive 81b into the embedded frame 76H. Since the embedded frame 76H does not have a bottom, the adhesive 81b will sit on top of the non-adhesive liquid 81a. (4) As shown in Figure 118, insert the end of the laminate 11H into the container 80 so that the end of the end-face sealing double-sided film tape 1H touches the bottom of the container 80. (5) As shown in Figure 119, once the adhesive 81b has hardened, pull the laminate 11H out of the container 80. As shown in Figure 119, the end of the laminate 11H is embedded with adhesive 81b surrounded by the embedding frame 76H3, and the end-face sealing double-sided film tape 1H protrudes downward from the layer of adhesive 81b for a length of about 1 mm. Also, as shown in Figure 115, when the laminate 11H is pulled out together with the embedding frame 76H3, the container 80 retains all of the non-adhesive liquid 81a. (6) Connect the collection plate 76H2 shown in Figure 114 to the embedding frame 76H3.

[0173] In the separation membrane module 10H(2), the non-adhesive liquid 81a is constantly present in the container 80 during its manufacturing process, and it can be used repeatedly without adding any more non-adhesive liquid 81a. The method of use and management is simple, and it can be used safely even when mercury is used as the non-adhesive liquid 81a.

[0174] <Fourth Modification of the Separation Membrane Module of the Eighth Embodiment> Figure 120 is an enlarged cross-sectional view of the main part showing the fourth modification of the separation membrane module of the eighth embodiment. The separation membrane module 10H(4) of the fourth modification of the eighth embodiment uses the embedded frame 76H3 and the aggregation plate 76H2 independently. In addition, in its manufacturing method, a container 80, which is a jig on which the embedded frame 76H3 is placed, is used, similar to the third modification. The effect of the manufacturing method is the same as that of the third modification. Furthermore, the aggregation plate 76H2 is provided with a large number of beams 76Ha on the bottom plate surface. The effect of providing beams 76Ha is the same as that of the second modification.

[0175] <Fifth Modification of the Separation Membrane Module of the Eighth Embodiment> Figure 121 is an enlarged cross-sectional view of the main part showing the fourth step, the embedding step, in the fifth modification of the separation membrane module of the eighth embodiment. In the manufacturing method of the fifth modification of the separation membrane module of the eighth embodiment, in step (1) of the fourth step of the manufacturing method of the third modification, as shown in Figure 121, a non-adhesive flexible body 82a with a thickness of about half the position of the frame seat 80a is laid on the container 80. The non-adhesive flexible body 82a is, for example, a silicone rubber sheet. The other steps (2) to (6) are the same as in the manufacturing method of the third modification.

[0176] In the manufacturing method for the separation membrane module of the fifth modification of the eighth embodiment, the end of the end-sealing double-sided membrane tape 1H is sealed by a non-adhesive flexible body 82a, which prevents adhesive from penetrating into the interior of the end-sealing double-sided membrane tape 1H from the end face, thus achieving the same effect as using a non-adhesive liquid. Furthermore, even if a small amount of adhesive penetrates from the end face of the end-sealing double-sided membrane tape 1H, the lower surface of the adhesive layer and the tip of the end-sealing double-sided membrane tape 1H are on the same plane, making it easy to perform post-processing such as mechanically scraping off the tip of the end-sealing double-sided membrane tape 1H.

[0177] <Sixth Modification of the Separation Membrane Module of the Eighth Embodiment> Figure 122 is a perspective view of the main part showing the sixth modification of the separation membrane module of the eighth embodiment. Now, in order to increase the pressure resistance strength of the separation membrane module, the adhesive layer must be made thicker. In order to make the adhesive layer thicker, it is necessary to raise the holding position of the divided holder 74, which holds the end-face sealing double-sided membrane tape 1H as explained in Figure 106, and to increase the amount of protrusion from the lower surface of the divided holder 74 to the end of the end-face sealing double-sided membrane tape 1H. If the amount of protrusion is large, at the tip of the end-face sealing double-sided membrane tape 1H, there are places where the gap becomes extremely narrow due to deterioration of the equal pitch between the tapes. At that place, it becomes difficult for the adhesive to penetrate, the thickness of the adhesive layer becomes thin in that area, and there is a possibility that a major problem will occur in the pressure resistance.

[0178] Therefore, in the sixth modified separation membrane module 10H (6), in the cutting step of the end-face sealing double-sided film tape 1H in the third step described above, as explained in Figure 107, the lower end of the dividing cutting tool 75 is used as a fixed tooth to cut the folded portion of the end-face sealing double-sided film tape 1H, the top and bottom of the laminate 11H are reversed, and the length (protrusion amount) of the end-face sealing double-sided film tape 1H protruding upward from the dividing holder 74 or dividing cutting tool 75 is adjusted to about 2 mm, and a high-viscosity adhesive is applied in a linear fashion at multiple locations and cured to produce multiple connecting lines 83.

[0179] As a result, in the sixth modified example, the separation membrane module 10H (6), even if the position of the dividing holder 74 is shifted to increase the amount of protrusion of the end-face sealing double-sided membrane tape 1H, the pitch between tapes at the tip of the laminate 11H can be maintained at equal intervals. In the embedding process, when the end of the laminate 11F is immersed in the low-viscosity adhesive liquid injected into the embedding container aggregation plate 76, etc., the connecting wire 83 may hinder the penetration of the adhesive between adjacent tapes. However, if the connecting wire is not too thick, the adhesive will penetrate quickly from the surrounding area, so this does not pose a major problem.

[0180] <Examples of other effects of the separation membrane module in each embodiment> (1) In a spiral-type separation membrane module, the spacing of the spacers needs to be densely spaced to correspond to the radius of the arc in order to maintain the arc. In contrast, in the rectangular parallelepiped-shaped separation membrane module of each embodiment, the spacers in the supply-side flow path 12 only need to be sparse. Since the supply-side flow path 12 is under positive pressure, the flow path will not be crushed by the fluid pressure. In a rectangular parallelepiped-shaped separation membrane module, the supply-side flow path 12 is linear, so the spacers only need to be sparse. (2) The comb-shaped spacers may be fixed only at the left and right ends, and the membrane surface cleaning spacer in the center may be moved to allow cleaning of the membrane surface of the separation membrane. (3) The collection plate may have a fluid outlet attached to the center of its side.

[0181] (4) In the manufacturing method of each separation membrane module, if the laminate is small and does not require much precision, the conventional method of making pleats may be used instead of the method of using a grid groove plate. (5) In order to increase the degree of concentration of the supply side fluid, for example, in the separation membrane module 10D of the fourth embodiment, the area of ​​the outlet section for the concentrated supply side fluid may be reduced, or the outlets of the concentrated supply side fluid on both flow path plates may be narrowed. In addition, in any embodiment, the degree of concentration can be controlled by taking measures to limit the amount of outflow as a result, such as by restricting the outlet. Note that the state in which no concentrated supply side fluid flows out at all is the same as the total filtration type. (6) As a method of reducing the flow resistance on the permeate side in the double-sided membrane tape, the continuous depletion rate of the cross section perpendicular to the flow path direction should be increased, that is, various irregularly shaped fibers that have a shape that increases the depletion rate when arranged as a flow path material should be appropriately arranged parallel to the flow path direction. (7) By reducing the flow resistance on the permeate side, it is possible to pressurize the fluid from the outlet of the permeate side flow path and discharge it from the inlet and outlet of the supply side flow path to clean the separation membrane and flow path.

[0182] <Example of configuration and manufacturing method of the separation membrane module of the ninth embodiment> The separation membrane module 10J of the ninth embodiment uses a double-sided separation inner membrane 1J. First, the double-sided separation inner membrane 1J will be described.

[0183] Figure 123 is a cross-sectional view showing an example of a double-sided separation membrane body of this embodiment. In the separation membrane modules of the first to eighth embodiments described above, the double-sided membrane bodies and double-sided membrane tapes were arranged with the two membrane bodies 2a facing outwards, as shown in Figure 1 and other figures.

[0184] In contrast, the double-sided separation inner membrane body 1J used in the separation membrane module of the ninth embodiment, as shown in Figure 123, has a separation membrane 2 in which the membrane body 2a is supported by a support layer 2b, with the membrane bodies 2a facing each other. The double-sided separation inner membrane body 1J is formed by inserting a supply-side channel forming spacer 12j, which forms a supply-side channel 12, between the opposing membrane bodies 2a, thereby integrating the membrane bodies 2a with the supply-side channel forming spacer 12j facing inward.

[0185] The double-sided separation inner membrane 1J may or may not have a permeable channel formed near the end face opposite to the membrane body 2a. However, in the ninth embodiment, as will be described later, a membrane with a permeable channel is used. Therefore, simply stacking the double-sided separation inner membrane 1J will enable the membrane to function as a separation membrane laminate. If a permeable channel is not formed, or if the flow resistance is high for the intended use, the double-sided separation inner membrane 1J and a permeable channel material (not shown), such as a permeable channel forming spacer, can be stacked alternately.

[0186] The double-sided separation inner membrane body 1J, in which a permeate channel is formed, has a supply channel 12 secured by a supply channel forming spacer 12j, and there are two separation membranes 2 flanking the supply channel 12, with a permeate channel provided at the end face of the support layer 2b.

[0187] Therefore, since a single double-sided separation inner membrane 1J itself possesses a separation function, it can be considered the smallest unit of separation membrane stack or separation membrane module, and will also be referred to as a cell.

[0188] Let's briefly consider the cell here. In particular, DAC (Direct Air Capture), which directly separates carbon dioxide from the atmosphere, requires a large amount of air with a very low carbon dioxide concentration of 0.04% to be taken into the separation membrane module. Therefore, enormous amounts of energy are required to circulate such a large amount of air through a very narrow supply channel.

[0189] Figure 124 is a plan view showing an example of a unit cell. In the ninth embodiment, a 10 mm square double-sided separator inner membrane 1J with a front-to-back width of 10 mm, equal to the supply-side flow path length, and a left-to-right width matching this 10 mm width, is referred to as a unit cell. Here, we consider the energy required to circulate the supply-side flow path for series and parallel connections of unit cells, in the case where there are N cells. When circulating the same amount of air, if the flow velocity when N cells are connected side by side (parallel connection) is V, then the flow velocity required when N cells are connected vertically (series connection) is N times that, NV, because there is only one inlet. Even though the amount of air carried is the same, the energy is N because the velocity is N times greater. ２ It doubles. Incidentally, the supply-side flow path length of a typical large spiral-type separation membrane module is nearly 1000 mm.

[0190] The thickness of the double-sided isolated inner membrane body 1J (from end face of support layer 2b to end face of support layer 2b shown in Figure 123) is, for example, 0.5 mm. A double-sided isolated inner membrane sheet is formed when many of these unit cells, each consisting of a double-sided isolated inner membrane body 1J, are connected on a plane, and a double-sided isolated inner membrane tape is formed when these are connected in a particularly long manner in the left-right direction.

[0191] Figure 125 is a perspective view showing an example of a cell plate block. In the ninth embodiment, 2000 double-sided separated inner membrane sheets 20Jj (also referred to as 10 series 50 parallel cell sheets), each measuring 100 mm in front-to-back width, 500 mm in left-to-right width, and 0.5 mm in thickness, are stacked to produce a large block body with dimensions of 100 mm × 500 mm × 1000 mm, as shown in Figure 125, with front-to-back width T × left-to-right width W × length L. This block body is referred to as a cell plate block 1Jj.

[0192] Subsequently, in the manufacturing process of the separation membrane module described later, the cell plate block 1Jj was cut in the front-to-back direction into units of 10 mm in length, and 10 cell plate modules measuring 10 mm x 500 mm x 1000 mm were produced. Furthermore, the 10 cell plate modules were arranged in a pleated shape to produce a pleated separation membrane module 10J with a width of 510 mm, a height of 510 mm, and a front-to-back width (depth) of 1000 mm.

[0193] The manufacturing methods for the double-sided separation inner membrane tape 2Jj, the double-sided separation inner membrane sheet 20Jj, the cell plate block 1Jj, the cell plate module 11Jj, and the separation membrane module 10J are described below.

[0194] [First Step: Manufacturing of Double-Sided Separation Inner Membrane Tape] Figure 126 is a configuration diagram showing an example of a manufacturing apparatus for double-sided separation inner membrane tape. The manufacturing apparatus 300 for double-sided separation inner membrane tape includes two reel mounting sections 301 on which reels 20J on which long separation membrane tapes 2J are wound, a hot melt coating machine 302 for applying hot melt thread between two separation membrane tapes 2J, and a feeding section 303 such as a roller 303a for feeding the double-sided separation inner membrane tape 2Jj.

[0195] (1) Two reels 20J are prepared, one for the lower side and one for the upper side, each wound with a separation membrane tape 2J with a front-to-back width of 500 mm, the lower layer of the support layer 2b also serving as the permeable channel material, and each is mounted on the reel mounting section 301. (2) The lower separation membrane tape 2J is fed out with the membrane body 2a facing upwards, and the hot melt applicator 302 continuously applies a large number of hot melts in a thread-like manner to the surface of the membrane body 2a at appropriate intervals in the width direction and in the feeding direction. These thread-like hot melts also serve as the adhesive between the two separation membrane tapes 2J and as supply-side channel forming spacers 12j to secure the supply-side channel 12. (3) The upper separation membrane tape 2J is fed out with the membrane body 2a facing downwards and placed on top of the lower separation membrane tape 2J to which the thread-like hot melts have been applied. (4) The hot melt applied in a thread-like manner is crushed and the upper and lower separation membrane tapes 2J are bonded together by passing the hot melt through the rollers 303a of the feed section 303 which have an appropriate spacing (for example, about 0.2 mm) between the upper and lower separation membrane tapes 2J, thereby continuously producing a double-sided separation inner membrane tape 2Jj.

[0196] [Second Step: Fabrication of Double-Sided Intina Sheet (Cell Sheet)] Figure 127 is a plan view showing the fabrication process of the double-sided separated intina sheet. The double-sided separated intina tape 2Jj fabricated in the first step is cut into 100 mm intervals to produce a 100 mm x 500 mm double-sided separated intina sheet 20Jj (10 series, 50 parallel cell sheet).

[0197] [Third Step: Manufacturing of Cell Plate Blocks] Figure 128 is a perspective view showing the manufacturing process of cell plate blocks. (1) The double-sided separated inner membrane sheets 20Jj (10 series, 50 parallel cell sheets) manufactured in the second step are stacked vertically in a continuous manner. If necessary, permeable channel material may be sandwiched between adjacent double-sided separated inner membrane sheets 20Jj. (2) Sealing and bonding adhesive 304 is applied to the left and right sides of the stack of double-sided separated inner membrane sheets 20Jj and allowed to harden. (3) The stack of double-sided separated inner membrane sheets 20Jj is cut into 1m (1000mm) sections to produce cell plate blocks 1Jj with front-to-back width T × left-to-right width W × length L of 100mm × 500mm × 1000mm.

[0198] [Fourth Step: Manufacturing of Cell Plate Modules] Figure 129 is a perspective view showing the selective end sealing process of the cell plate block. (1) The cell plate block 1Jj manufactured in the third step is cut in the front-to-back direction into units of 10 mm in length, and 10 cell plate blocks 10Jj are manufactured with front-to-back width T × left-to-right width W × length L of 10 mm × 500 mm × 1000 mm. (2) As shown in Figure 129, a low-viscosity permeable side sealing agent 305 is applied to the front and rear surfaces (not shown) of the cell plate block 10Jj. (3) After a few seconds, the permeable side sealing agent 305 that has entered the supply side flow path 12 shown in Figure 123 is wiped off. Steps (2) and (3) of the fourth step are the selective end sealing of method 2 described above.

[0199] Figure 130 is an enlarged perspective view of the main part showing the process of forming the permeate veins, and Figure 131 is an enlarged cross-sectional view of the main part showing the process of forming the permeate veins. (4) A high-viscosity adhesive 307 is pressed deeply (for example, 2 mm) in a width of, for example, 2 mm, into the front and rear (not shown) surfaces of the cell plate block 10Jj that has undergone selective end sealing, in accordance with the position of the permeate veins (306) described below. This adhesive 307 also serves to strengthen the laminate of the cell plate block 10Jj. (5) After the adhesive 307 has hardened, the center of the 2 mm width is cut out to a depth of 1.5 mm with a width of 1 mm to open a groove that will form the permeate vein 306. Steps (4) and (5) of the fourth step are the selective end sealing of method 3 described above. (6) A high-viscosity adhesive 308 is applied to the cut-out groove and the high-viscosity adhesive 308 is used to cover the cross-sectional area of ​​1 mm ２ It forms a permeable flow vein 306 of a certain degree.

[0200] Figure 132 is a perspective view showing the cell plate module manufacturing process. (7) Ten cell plate modules 11Jj were manufactured by attaching condensing plates 309 to both the upper and lower ends of a cell plate block 10Jj on which a permeate flow vein 306 was formed. A permeate flow pipe 310 is formed at the right end of the condensing plate 309.

[0201] Although steps 3 and 4 are shown stacked vertically in the diagram for illustrative purposes, it is actually more practical to manufacture them with the height oriented horizontally.

[0202] [Step 5: Fabrication of pleated separation membrane module] Figure 133 is a top view showing the fabrication process of the pleated separation membrane module, and Figure 134 is a front view showing the fabrication process of the pleated separation membrane module.

[0203] (1) Arrange the 10 cell plate modules 11Jj manufactured in the fourth step on the bottom plate 311 in a pleated shape when viewed from above, and seal the abutting parts at both the front and rear ends of the cell plate modules 11Jj with adhesive tape or the like. (2) Attach the top plate 312 and the left and right plates 313 to the pleated cell plate modules 11Jj. (3) Connect the two main permeate flow pipes 314, each having connecting holes corresponding to the 10 permeate flow pipes 310, to the permeate flow pipes 310.

[0204] As described above, the manufactured separation membrane module 10J consists of 1 million double-sided separation inner membranes 1J arranged in parallel, allowing for the supply of a large volume of air at low pressure from the front. The supplied air moves from the pleated inlet to the rear and enters the supply-side channel 12 of the double-sided separation inner membrane 1J through slits spaced 0.2 mm apart, which are the supply-side channels of the double-sided separation inner membrane 1J. The permeate-side fluid, which contains a large amount of carbon dioxide and has permeated the membrane body 2a of the separation membrane 2, flows through the support layer 2b of the separation membrane 2, the permeate-side channel 13, the permeate flow vein 306, and the permeate flow pipe 310, into two main permeate flow pipes 314, and then merges with a wider main permeate flow pipe (not shown), where it is discharged and collected by a pump. The supply-side fluid that did not permeate the separation membrane 2 and has a reduced carbon dioxide concentration is released into the atmosphere after passing through a 10 mm long slit.

[0205] Furthermore, similar modules can be fabricated from a laminate of the separation membrane 2 sheet and the flow channel material, or from an alternating laminate of the double-sided membrane tape 1A and the supply-side flow channel material.

[0206] <Example of configuration and manufacturing method of the separation membrane module of the 10th embodiment> Figure 135 is a side view showing an example of a separation membrane module of the 10th embodiment. The separation membrane module 10K of the 10th embodiment is formed by stacking long, for example, end-face sealing double-sided membrane tapes 1D in a folded manner, without using a dividing jig 50 as shown in Figures 68 to 70, to form a laminate.

[0207] Figure 136 is a side view showing an example of an implantation device for implanting end-face sealing double-sided film tape. In the following figures, the definitions of front, back, top, and bottom are as shown in Figure 136. The implantation device 90A is provided with a base plate 91 on which the long end-face sealing double-sided film tape 1D is folded and stacked along the vertical direction.

[0208] The implantation device 90A stacks the end-face sealing double-sided film tape 1D on the base plate 91 in a folded state. Therefore, the flat insertion head 54 described in Figure 71 is mounted with its surface direction oriented horizontally and is driven by a drive unit (not shown) so as to be movable in the front-rear direction. The insertion head 54 is provided with an openable and closable friction gate 55 that holds the end-face sealing double-sided film tape 1D between its teeth.

[0209] Furthermore, the implantation device 90A is provided with a gripping device 92 that grasps the folded portion of the end-face sealing double-sided film tape 1D, which is driven by a drive unit (not shown) and is movable in the vertical direction. The gripping device 92 is driven by a drive unit (not shown) to open and close, enabling it to grasp and release the folded portion of the end-face sealing double-sided film tape 1D.

[0210] Furthermore, the implantation device 90A is equipped with a pressing plate 93 that is driven by a drive unit (not shown) to move vertically, pressing the end-face sealing double-sided film tape 1D, which is stacked on the base plate 91 in a folded state, against the base plate 91.

[0211] Figures 137 to 140 are side views showing an example of a method for manufacturing the separation membrane module of the tenth embodiment. Next, an example of a method for manufacturing the separation membrane module 10K of the tenth embodiment using the implantation device 90A will be described. The example of a method for manufacturing the separation membrane module 10K of the tenth embodiment is the same as the method for manufacturing the separation membrane module 10F of the sixth embodiment, except that the second step is replaced with an insertion step.

[0212] [Second Step: Insertion] (1) The gripping tool 92 is moved onto the movement path of the insertion head 54, and the gripping tool 92 is opened. (2) As shown in Figure 137, the insertion head 54 is driven forward in the direction of arrow F1 by a drive unit (not shown). As a result, the insertion head 54 enters the inside of the folded portion of the end-face sealing double-sided film tape 1D and moves toward the gripping tool 92, inserting the folded portion of the end-face sealing double-sided film tape 1D into the gripping tool 92. (3) With the gripping tool 92 closed, it grips the folded portion of the end-face sealing double-sided film tape 1D from the outside. (4) As shown in Figure 138, the insertion head 54 is driven backward in the direction of arrow R1 by a drive unit (not shown). As the insertion head 54 moves backward toward the gripping tool 92 and reaches the top dead center position, the friction gate 55 is closed. As the insertion head 54 retracts in the direction of arrow R1, the gripper 92 grips the folded portion of the end-face sealing double-sided film tape 1D, so the end-face sealing double-sided film tape 1D does not follow the retraction of the insertion head 54, and the end-face sealing double-sided film tape 1D is held in a folded state. (5) Driven by a drive unit (not shown), the insertion head 54 begins to move forward from the top dead center position toward the gripper 92, and at the same time, the gripper 92 that was gripping the folded portion of the end-face sealing double-sided film tape 1D opens. (6) As shown in Figure 139, driven by a drive unit (not shown), the base plate 91 and the pressing plate 93 descend in the direction of arrow D1. This causes the uppermost surface of the laminate 11K, in which the end-face sealing double-sided film tape 1D is stacked in a folded state, to be pressed downward by the pressing plate 93. Also, driven by a drive unit (not shown), the gripper 92 rises in the direction of arrow U1. As a result, the folded portion of the end-face sealing double-sided film tape 1D that was being held by the gripper 92 moves downward, while the gripper 92 moves upward, causing the gripper 92 to release from the folded portion of the end-face sealing double-sided film tape 1D. Then, in accordance with the spacing at which the end-face sealing double-sided film tape 1D is stacked, the gripper 92 and the end-face sealing double-sided film tape 1D are moved relatively up and down along the direction in which the end-face sealing double-sided film tape 1D is stacked. In this example, the stacked body 11K is lowered by one step. (7) As shown in Figure 140, the gripper 92 is driven by a drive unit (not shown) to descend in the direction of arrow D1 and return to its fixed position.(8) Driven by a drive unit (not shown), the pressing plate 93 rises in the direction of arrow U1 and retracts from the movement path of the insertion head 54. This returns the state to that of (1) above. Thereafter, by repeating the insertion process of (1) to (8) above, a laminate 11K is created in which the long end-face sealing double-sided film tape 1D is stacked in a folded form.

[0213] <First Modified Example of the Method for Manufacturing the Separation Membrane Module of the Tenth Embodiment> Figures 141 to 145 are side views showing the first modified example of the method for manufacturing the separation membrane module of the tenth embodiment. The implantation device 90B shown in Figures 141 to 145 is used in the first modified example of the method for manufacturing the separation membrane module 10K of the tenth embodiment.

[0214] The implantation device 90B is configured to be tiltable from an upright position, with an adhesive plate 94 having an adhesive surface that can be attached to and peeled off the outer tip of the folded portion of the end-face sealing double-sided film tape 1D. The implantation device 90B is also provided with a retractable guide slit 95 into which the folded portion of the end-face sealing double-sided film tape 1D is inserted. The guide slit 95 is comb-shaped, and multiple grooves into which the folded portion of the end-face sealing double-sided film tape 1D is inserted are formed along the stacking direction of the end-face sealing double-sided film tape 1D. Furthermore, the implantation device 90B is provided with an insertion head (not shown) that inserts the folded portion of the end-face sealing double-sided film tape 1D into the guide slit 95, which is driven by a drive unit (not shown) and is movable in the left-right direction. In addition, the implantation device 90B is provided with a pressing plate 93 that presses and aligns the end-face sealing double-sided film tape 1D, which is stacked on the base plate 91 in a folded state, to the base plate 91, which is driven by a drive unit (not shown) and is movable in the up-down and left-right directions.

[0215] Next, a first modification of the manufacturing method of the separation membrane module 10K of the tenth embodiment using the implantation device 90B will be described. The first modification of the manufacturing method of the separation membrane module 10K of the tenth embodiment is the manufacturing method of the separation membrane module 10F of the sixth embodiment, in which the second step is replaced with an insertion and alignment step, and the rest is the same as the manufacturing method of the separation membrane module 10F of the sixth embodiment.

[0216] [Second Step: Insertion and Alignment] (1) Using an insertion head (not shown), as shown in Figure 141, the folded portions of the end-face sealing double-sided film tape 1D are sequentially inserted between the guide slits 95, and the outer leading edges of the folded portions of the end-face sealing double-sided film tape 1D are adhered to the adhesive plate 94. By a combination of horizontal reciprocating movement of the insertion head (not shown) toward and away from the adhesive plate 94 and guide slits 95, and the raising and lowering of the insertion head (not shown), or the adhesive plate 94 and guide slits 95, the end-face sealing double-sided film tape 1D is folded, and the folded portions of the end-face sealing double-sided film tape 1D are sequentially inserted between the guide slits 95, and the end-face sealing double-sided film tape 1D is stacked in a folded form. At this time, there is a gap between the stacked end-face sealing double-sided film tapes 1D equal to the thickness of the guide slits 95. (2) After stacking the end-face sealing double-sided film tapes 1D, as shown in Figure 142, the guide slits 95 are removed from between the end-face sealing double-sided film tapes 1D. (3) As shown in Figure 143, the adhesive plate 94 is tilted in a direction that reduces the gap between the stacked end-sealing double-sided film tapes 1D. This causes the stacked body 11K of end-sealing double-sided film tapes 1D to form a parallelogram. By increasing the tilt angle of the adhesive plate 94, the height of this parallelogram is reduced, and the stacking density of the end-sealing double-sided film tapes 1D is increased until the end-sealing double-sided film tapes 1D that previously had a gap Ds equal to the thickness of the guide slit 95 come into contact with each other. (4) As shown in Figure 144, the stacked body 11K of end-sealing double-sided film tapes 1D, which has a parallelogram shape when viewed from the side, is pressed down from above and below by the pressing plate 93 and the base plate 91, and while maintaining this state, the adhesive plate 94 is peeled off from the end-sealing double-sided film tapes 1D. (5) As shown in Figure 145, the pressing plate 93 and the base plate 91, which sandwich the laminate of end-face sealing double-sided film tape 1D from above and below, are moved horizontally relative to each other in the direction that returns the laminate of end-face sealing double-sided film tape 1D 11K to a rectangular parallelepiped, while the laminate of end-face sealing double-sided film tape 1D is pressed down from above and below, thereby returning the laminate of end-face sealing double-sided film tape 1D 11K to a rectangular parallelepiped.

[0217] <Second Modification of the Method for Manufacturing the Separation Membrane Module of the Tenth Embodiment> Figure 146 is a side view showing a second modification of the method for manufacturing the separation membrane module of the tenth embodiment, and Figures 147 and 148 are cross-sectional views taken along line F-F of Figure 146 showing a second modification of the method for manufacturing the separation membrane module of the tenth embodiment. The implantation device 90C shown in Figures 146 to 148 is used in the second modification of the method for manufacturing the separation membrane module 10K of the tenth embodiment.

[0218] The implantation device 90C has an adhesive plate 94, which has an adhesive surface that can be attached to and peeled off the outer tip of the folded portion of the end-face sealing double-sided film tape 1D, mounted vertically and movable in the front-rear direction by a drive unit (not shown). The implantation device 90C also has a retractable guide slit 95 into which the folded portion of the end-face sealing double-sided film tape 1D is inserted. Furthermore, the implantation device 90C has an insertion head (not shown) that is driven by a drive unit (not shown) to move in the front-rear direction for inserting the folded portion of the end-face sealing double-sided film tape 1D into the guide slit 95. In addition, the implantation device 90C has a pressing plate 93 that is driven by a drive unit (not shown) to press and align the end-face sealing double-sided film tape 1D, which is stacked on the base plate 91 in a folded state, against the base plate 91. Furthermore, the planting device 90C is provided with a pair of elastically deformable holding members, which are sponge plates 96, positioned on either side of the base plate 91, and are driven by a drive unit (not shown) so as to be movable in directions that narrow the distance between them and directions that widen the distance between them.

[0219] Next, a second modification of the manufacturing method of the separation membrane module 10K of the tenth embodiment using the implantation device 90B will be described. The second modification of the manufacturing method of the separation membrane module 10K of the tenth embodiment is the manufacturing method of the separation membrane module 10F of the sixth embodiment, in which the second step is replaced with an insertion, holding, and alignment step, and the rest is the same as the manufacturing method of the separation membrane module 10F of the sixth embodiment. In addition, the insertion step of the insertion, holding, and alignment step is the same as the first modification of the manufacturing method of the separation membrane module 10K of the tenth embodiment.

[0220] [Second Step: Insertion, Holding, and Alignment] (1) Using an insertion head (not shown), as shown in Figure 141, the folded portions of the end-face sealing double-sided film tape 1D are sequentially inserted between the guide slits 95, and the outer leading edges of the folded portions of the end-face sealing double-sided film tape 1D are adhered to the adhesive plate 94. By a combination of horizontal reciprocating movement of the insertion head (not shown) toward and away from the adhesive plate 94 and guide slits 95, and the raising and lowering of the insertion head (not shown), or the adhesive plate 94 and guide slits 95, the end-face sealing double-sided film tape 1D is folded, and the folded portions of the end-face sealing double-sided film tape 1D are sequentially inserted between the guide slits 95, and the end-face sealing double-sided film tape 1D is stacked in a folded form. At this time, there is a gap between the stacked end-face sealing double-sided film tapes 1D equal to the thickness of the guide slits 95. (2) After stacking the end-face sealing double-sided film tapes 1D, as shown in Figure 142, the guide slits 95 are removed from between the end-face sealing double-sided film tapes 1D. (3) As shown in Figures 146 and 147, the pair of sponge plates 96 are moved toward each other until they are facing each other with a gap slightly narrower than the width of the end-face sealing double-sided film tape 1D, and pressed against the left and right end faces near the front end of the laminate 11K of the end-face sealing double-sided film tape 1D, holding the laminate 11K of the end-face sealing double-sided film tape 1D from both sides by friction. (4) The adhesive plate 94 is peeled off the end-face sealing double-sided film tape 1D. (5) As shown in Figure 148, the pair of sponge plates 96 are gradually moved away from each other, reducing the force with which the pair of sponge plates 96 press down on the laminate 11K of end-face sealing double-sided film tape 1D. The laminate 11K of end-face sealing double-sided film tape 1D, held between the pair of sponge plates 96, is then pressed down from above and below by the pressing plate 93 and the base plate 91. The height of the laminate 11K of end-face sealing double-sided film tape 1D, which had a gap Ds equal to the thickness of the guide slit 95, is reduced until the two pieces of end-face sealing double-sided film tape 1D come into contact, thereby forming a properly compressed rectangular parallelepiped.

[0221] <Example of the structure of a double-sided separation outer membrane tape> Figure 149 is a cross-sectional view showing an example of a double-sided separation outer membrane tape of this embodiment. In the double-sided separation outer membrane tape 1E of this embodiment, a resin is applied to both sides of the base material 2c of the nonwoven fabric tape, forming a dense-coarse layer 2d with a higher density than the base material 2c on both sides of the base material 2c, and a dense layer 2e with a higher density than the dense-coarse layer 2d is formed on the outside of each of the dense-coarse layer 2d. Furthermore, a separation functional membrane 2f is formed on the outside of each of the dense layer 2e.

[0222] <Example of manufacturing method for double-sided separation outer membrane tape> (1) A resin is applied to both sides of the base material 2c of the nonwoven fabric tape to form a dense-coarse layer 2d with a higher density than the base material 2c on both sides of the base material 2c, and a dense layer 2e with a higher density than the dense-coarse layer 2d is formed on the outside of each of the dense-coarse layer 2d. (2) A separation functional membrane 2f is formed on the surface of the upper and lower dense layers 2e.

[0223] As a result, the double-sided separation outer membrane tape 1E has a coarse-density layer 2d and a dense layer 2e formed on both sides of the base material 2c, in order from the inside out, and a separation functional membrane 2f is formed on the outermost layer of both the upper and lower surfaces.

[0224] The double-sided membrane 1 described above comprises a separation membrane 2 in which the membrane body 2a is supported by a support layer 2b, and the separation membrane 2 is superimposed with the support layer 2b facing each other so that the membrane body 2a is exposed on both the upper and lower surfaces. In contrast, the double-sided separation outer membrane tape 1E has a separation function membrane 2f exposed on both the upper and lower surfaces of a single substrate 2c.

[0225] Thus, since the double-sided separation outer membrane tape 1E has a configuration in which the separation functional membrane 2f is exposed on both the upper and lower surfaces, similar to the double-sided membrane body 1, it may be used in place of the double-sided membrane body 1 in each of the embodiments described above.

[0226] The present invention can be used for double-sided membranes, double-sided membrane tapes, separation membrane laminates, separation membrane modules, methods for manufacturing separation membrane laminates and separation membrane modules, double-sided separation outer membrane tapes and methods for manufacturing double-sided separation outer membrane tapes.

[0227] DESCRIPTION OF SYMBOLS 1... Double-sided membrane body, 2... Separation membrane, 2a... Membrane body, 2b... Support layer, 12... Supply side channel, 13... Permeate side channel, 3a... Permeate side channel material, 10... Separation membrane module, 11... Laminated body

Claims

1. A double-sided membrane comprising a separation membrane in which the membrane body is supported by a support layer, wherein the membrane body is exposed on both the front and back surfaces of the support layer.

2. A double-sided membrane tape comprising a long separation membrane in which the membrane body is supported by a support layer, characterized in that the membrane body is exposed on both the front and back surfaces of the long support layer.

3. A separation membrane laminate comprising a separation membrane in which the membrane body is supported by a support layer, wherein a double-sided membrane body is formed on both the front and back surfaces of the support layer in which the membrane body is exposed, and the double-sided membrane bodies are stacked in a direction in which the membrane bodies face each other, forming a rectangular parallelepiped shape in which the stacked layers of the double-sided membrane bodies are exposed at four end faces, and a supply-side channel formed between the opposing membrane bodies and a permeation-side channel formed between the opposing support layers are exposed at the four end faces.

4. The separation membrane laminate according to claim 3, characterized in that the supply-side channel and the permeate-side channel exposed to the four end faces are selectively sealed.

5. The separation film laminate according to claim 4, characterized in that the side with better wettability is selectively sealed due to differences in wettability with respect to the sealing material.

6. The separation membrane laminate according to claim 4, characterized in that the narrower side of the gap between the opposing support layers forming the permeate channel and the opposing membrane body forming the supply channel is selectively sealed.

7. The separation membrane laminate according to claim 4, characterized in that the wider side of the gap between the opposing support layers forming the permeate channel and the opposing membrane body forming the supply channel is selectively sealed.

8. A separation membrane module comprising a separation membrane in which the membrane body is supported by a support layer, wherein a double-sided membrane body is formed on both the front and back surfaces of the support layer in which the membrane body is exposed, the double-sided membrane body is stacked in a direction in which the membrane bodies face each other, forming a rectangular parallelepiped shape in which the stacked layers of the double-sided membrane body are exposed at four end faces, and the separation membrane stack comprises a separation membrane stack in which a supply-side channel formed between the opposing membrane bodies and a permeate-side channel formed between the opposing support layers are exposed at the four end faces, wherein the supply-side channel and the permeate-side channel exposed at the four end faces are selectively sealed.

9. A method for manufacturing a separation membrane laminate, characterized in that the membrane body comprises a separation membrane supported by a support layer, and the separation membrane is formed by stacking double-sided membrane bodies, each having the support layer facing the other, to form a laminate.

10. A method for manufacturing a separation membrane laminate, comprising a membrane body comprising a long separation membrane supported by a support layer, wherein the separation membrane is formed by stacking long double-sided membrane tapes, which are stacked with the support layers facing each other, in a folded manner to form a laminate.

11. A method for manufacturing a separation membrane module, characterized by being manufactured using the method for manufacturing a separation membrane laminate described in claim 9 or claim 10.

12. A double-sided separation outer membrane tape characterized in that a resin is applied to both sides of the nonwoven fabric tape base material to form a dense-coarse layer with a higher density relative to the base material on both sides of the base material, a dense layer with a higher density relative to the dense-coarse layer is formed on the outside of each of the dense layers, and a separation functional membrane is formed on the outside of each of the dense layers.

13. A method for manufacturing a double-sided separation outer film tape, characterized by applying resin to both sides of a nonwoven fabric tape base material to form dense and coarse layers with a higher density relative to the base material on both sides of the base material, forming dense layers with a higher density relative to the coarse and coarse layers on the outside of each of the coarse and coarse layers, and forming separation functional layers on the surfaces of the upper and lower dense layers.

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