Tubular membrane module structure and packaging method thereof

Abstract

The invention provides a tubular membrane module structure and a packaging method thereof, the tubular membrane module structure comprises a tubular membrane shell, a plurality of tubular membranes and at least one bonding glue, the tubular membrane shell comprises a membrane shell and two end plates, the plurality of tubular membranes are assembled in an accommodating hole in the membrane shell in a bundle shape, and the two end plates are connected with the tubular membrane shell. At least one end of each tubular membrane is inserted into the sleeving column of the end plate to be fixed, the at least one bonding glue is poured into the position, close to the end plate, of the containing hole of the membrane shell, and the height of the bonding glue exceeds the height of the sleeving column. The method comprises the following steps: (a) inserting a tubular membrane; (b) sleeving a membrane shell; (c) pouring glue; (d) waiting for curing for the first time; therefore, the combination and fixation of the tubular membrane, the membrane shell and the end plate can be enhanced, a certain protection effect on the tubular membrane is achieved, the packaging method is simple, the production efficiency is high, and the service life is long.

Description

Technical Field

[0001] The present invention relates to a tubular membrane module, and particularly to a structure of a tubular membrane module and a packaging method thereof. Background Art

[0002] The tubular membrane adopts a tangential flow (also known as cross-flow) filtration method. Since the flow direction is parallel to the tube wall, the dirt blocked by the tube wall is carried away by the pollution source, effectively solving the degree of blockage and having better filtration efficiency. Compared with other membrane structure forms, the tubular membrane has a larger application field and development prospect. When in use, according to different model requirements, the membrane tubes are assembled into bundles and placed in a plastic or stainless steel membrane shell for positioning and packaging to form a tubular membrane module. When in use, under the push of a pressure difference, the solution and small solute particles in the feed liquid permeate from the high-pressure feed liquid side to the low-pressure side, so that a kind of liquid obtained is called permeate. This process can achieve the purpose of purification, separation and concentration of the solution.

[0003] In the prior art, a plurality of bundled tubular membranes are placed in a fixture. The fixture is used to apply glue at one end of the plurality of tubular membranes to bond with the inner surface of the membrane shell. The end of the tubular membrane and the glue form a parallel state. Then, the plurality of tubular membranes are assembled into a tubular membrane outer shell, and the other ends of the plurality of tubular membranes are fixed with another fixture and then glued. After the glue hardens, the fixture is removed to complete the packaging. This way of directly bonding and fixing the two ends of the tubular membrane to the inner surface of the membrane shell has poor bonding strength and cannot provide good protection for the tubular membrane. It is easy to cause deformation and breakage of the tubular membrane and shedding of the glue due to water pressure and continuous impact on the end face, resulting in filtration failure and shortening the service life of the tubular membrane module.

[0004] When the tubular membrane is packaged into the tubular membrane outer shell, one end or both ends of the tubular membrane are fixed to the inner surface of the membrane shell of the tubular membrane outer shell. When the tubular membrane module is working, the joint between the tubular membrane and the membrane shell is easy to deform or even break. Therefore, some put a mesh protective layer on the outside of the plurality of tubular membranes, and some use partitions to divide the plurality of tubular membranes into several bundles. These methods can play a certain protective role for the tubular membrane, but they are still very easy to cause damage to the tubular membrane and cannot well solve the water flow distribution and water production collection, often resulting in deformation or even breakage of the tubular membrane and low filtration efficiency. Especially when the operating pressure and flow rate of the tubular membrane module are large, the problem is more prominent. Summary of the Invention

[0005] In view of the above-mentioned disadvantages of the prior art tubular membrane modules, the present invention provides a structure of a tubular membrane module and its encapsulation method. The structure of the tubular membrane module includes: a tubular membrane housing, which includes a membrane shell and two end plates. A through accommodating hole is provided inside the membrane shell, and at least one filtrate outlet communicating with the accommodating hole is provided on the outer periphery of the membrane shell. The two end plates are assembled and fixedly combined at both ends of the membrane shell. At least one of the two end plates is provided with a plurality of fitting columns on the surface facing the accommodating hole, and each fitting column is provided with a through hole penetrating the end plate; a plurality of tubular membranes, which are circular tubes and are bundled and arranged in the accommodating hole inside the membrane shell. At least one end of each tubular membrane is inserted and fixed on the fitting column of the end plate and communicates with the through hole of the fitting column. A distance is reserved between each tubular membrane and the end plate; and at least one bonding glue is poured at the end plate near the accommodating hole of the membrane shell where the fitting column is provided, and the height of the bonding glue exceeds the height of the fitting column, which can strengthen the bonding strength between each tubular membrane and the end plate and the membrane shell, and make one end of each tubular membrane mutually bonded and fixed. The encapsulation method of the tubular membrane module includes the following steps: (a) Inserting the tubular membrane step: Place one end plate on a flat surface, and insert one end of a bundle of a plurality of tubular membranes on a plurality of fitting columns provided on one surface of the end plate and fix them, and reserve a distance between them and the end plate; (b) Putting on the membrane shell step: Put one end of a membrane shell on the end plate, so that the plurality of tubular membranes are accommodated in an accommodating hole provided inside the membrane shell, and at least one filtrate outlet communicating with the accommodating hole is provided on the outer periphery of the membrane shell; (c) Glue pouring step: Inject liquid bonding glue into the accommodating hole of the membrane shell through the filtrate outlet, and let it flow by gravity to between each tubular membrane near the end plate. The height of the bonding glue exceeds the height of the fitting column; (d) Waiting for curing step: Wait for the bonding glue to dry and fix naturally, strengthen the bonding and fixing between one end of each tubular membrane and the end plate and the membrane shell, and make one end of each tubular membrane mutually bonded and fixed; (e) Assembling the other end plate step: Assemble the other end plate on the other end of the membrane shell and fixedly combine it, and then repeat steps (c) and (d).

[0006] The main purpose of the structure of the tubular membrane module and its encapsulation method of the present invention is that it can strengthen the bonding and fixing of the tubular membrane, the membrane shell and the end plate, play a certain protective role for the tubular membrane, achieve good water flow distribution and water production collection, avoid deformation of the tubular membrane and even rupture of the inner layer membrane, and has high filtration efficiency and long service life.

[0007] Another purpose of the structure of the tubular membrane module and its encapsulation method of the present invention is that its encapsulation method is simple, the encapsulation is convenient and fast, and the manufacturing cost is reduced. Description of the Drawings

[0008] Figure 1 It is a perspective view of the tubular membrane module of the present invention.

[0009] Figure 2 It is an exploded perspective view of the tubular membrane module of the present invention.

[0010] Figure 3 This is a sectional view of the end plate of the present invention.

[0011] Figure 4 This is a sectional view of the tubular membrane module of the present invention.

[0012] Figure 5 This is a block diagram of the method for encapsulating the tubular membrane module of the present invention.

[0013] Figure 6 This is a schematic diagram of the operation of the step of inserting the tubular membrane of the present invention.

[0014] Figure 7 is Figure 6 an enlarged view of part A1 of

[0015] Figure 8 This is a schematic diagram of the operation of the step of sleeving the membrane housing of the present invention.

[0016] Figure 9 This is a schematic diagram of the operation of the step of pouring glue of the present invention.

[0017] Figure 10 This is a schematic diagram of the operation of the first curing waiting step of the present invention.

[0018] Figure 11 This is a schematic diagram of the operation of the step of assembling the other end plate of the present invention.

[0019] Figure 12 This is a schematic diagram of the operation of the step of flipping and pouring glue of the present invention.

[0020] Reference numerals

[0021] 10 Tubular membrane housing

[0022] 11 Membrane housing

[0023] 111 Accommodating hole

[0024] 112 Filtrate outlet

[0025] 12 End plate

[0026] 121 Fitting column

[0027] 1211 Flow-through hole

[0028] 20 Tubular membrane

[0029] 30 Bonding glue

[0030] S110 Step of inserting the tubular membrane [[ID=7,6]]

[0031] S120 Step of sleeving the membrane housing

[0032] S130 Step of pouring glue

[0033] S140 First waiting for curing step

[0034] S150 Assembling the other end plate step

[0035] S160 Inverting the potting step

[0036] S170 Second waiting for curing step

[0037] D Spacing Specific implementation manner

[0038] The following is further described in conjunction with the drawings of the preferred embodiments of the present invention, in order to enable those skilled in the art to implement it according to the statements of this specification.

[0039] First, as Figures 1 to 4 shown, the tubular membrane module structure and its encapsulation method of the present invention, the tubular membrane module structure includes: a tubular membrane housing 10, a plurality of tubular membranes 20 and at least one bonding adhesive 30.

[0040] The tubular membrane housing 10 includes a membrane housing 11 and two end plates 12. The membrane housing 11 is in a circular tubular shape, and a through accommodating hole 111 is provided inside. At least one filtrate outlet 112 communicating with the accommodating hole 111 is provided on the outer periphery of the membrane housing 11. The two end plates 12 are assembled and fixed at both ends of the membrane housing 11. At least one of the two end plates 12 is provided with a plurality of nesting columns 121 on the surface facing the accommodating hole 111. Each of the nesting columns 121 is in a conical shape that gradually expands from the end far away from the end plate 12 to the end close to the end plate 12. Each of the nesting columns 121 is provided with a through hole 1211 penetrating the end plate 12. In this embodiment, two filtrate outlets 112 communicating with the accommodating hole 111 are provided on the outer periphery of the membrane housing 11, and a plurality of nesting columns 121 are respectively provided on the surfaces of the two end plates 12 facing the accommodating hole 111.

[0041] A plurality of tubular membranes 20 are in a circular tubular shape and are assembled in a bundle in the accommodating hole 111 inside the membrane housing 11. At least one end of each of the tubular membranes 20 is inserted and fixed on the nesting column 121 of the end plate 12 and communicates with the through hole 1211 of the nesting column 121. A spacing D is reserved between each of the tubular membranes 20 and the end plate 12. In this embodiment, both ends of each of the tubular membranes 20 are respectively inserted and fixed on the nesting columns 121 of the two end plates 12, and each of the tubular membranes 20 is composed of a combination of support materials such as polymer synthetic paper, non-woven fabric, and membrane material.

[0042] At least one bonding adhesive 30 is poured into the accommodation hole 111 of the membrane housing 11 near the end plate 12 provided with the fitting post 121, and the height of the bonding adhesive 30 exceeds the height of the fitting post 121, which can strengthen the bonding strength between each tubular membrane 20 and the end plate 12, and fix the ends of each tubular membrane 20 to each other. In this embodiment, the number of the at least one bonding adhesive 30 is two, and the two bonding adhesives 30 are poured into the accommodation holes 111 of the membrane housing 11 near the two end plates 12, and the two bonding adhesives 30 are two-component liquid hardening adhesives (AB adhesives).

[0043] Its method for encapsulating a tubular membrane module, as Figure 5 shown, comprises the following steps:

[0044] (a) Step S110 of inserting the tubular membranes: Place one end plate 12 on a flat surface, insert one end of a bundle of multiple tubular membranes 20 onto a plurality of fitting posts 121 provided on one side of the end plate 12 for fixation, and a spacing D is reserved between one end of the multiple tubular membranes 20 and the end plate 12. Each fitting post 121 is provided with a through hole 1211 penetrating the end plate 12, and each tubular membrane 20 communicates with the through hole 1211 of each fitting post 121 (as Figure 6 and Figure 7 shown).

[0045] (b) Step S120 of sleeving the membrane housing: Sleeve one end of a membrane housing 11 onto the end plate 12, so that the multiple tubular membranes 20 are accommodated in an accommodation hole 111 provided inside the membrane housing 11. At least one filtrate outlet 112 communicating with the accommodation hole 111 is provided on the outer periphery of the membrane housing 11. In this embodiment, two filtrate outlets 112 communicating with the accommodation hole 111 are provided on the outer periphery of the membrane housing 11 (as Figure 8 shown).

[0046] (c) Glue pouring step S130: Inject the liquid bonding adhesive 30 into the accommodation hole 111 of the membrane housing 11 through the filtrate outlet 112, and it flows downward by gravity between each tubular membrane 20 near the end plate 12, and the height of the bonding adhesive 30 exceeds the height of the fitting post 121 (as Figure 9 shown).

[0047] (d) First waiting for curing step S140: Wait for the bonding adhesive 30 to dry and fix naturally, strengthen the bonding between one end of each tubular membrane 20 and the end plate 12, and fix the ends of each tubular membrane 20 to each other (as Figure 10 shown).

[0048] (e) Step S150 of assembling the other end plate: Assemble the other end plate 12 onto the other end of the membrane housing 11 and fix them together, so that the other ends of the multiple tubular membranes 20 in a bundle are inserted onto a plurality of engaging columns 121 provided on one side of the other end plate 12 and fixed, and a spacing D is reserved between them and the other end plate 12 (as Figure 11 shown).

[0049] (f) Step S160 of flipping and injecting glue: Flip the membrane housing 11 by 180 degrees, and inject the liquid bonding glue 30 into the accommodating hole 111 of the membrane housing 11 from the filtrate outlet 112, and let it flow downward by gravity to between the tubular membranes 20 close to the other end plate 12. The height of the bonding glue 30 exceeds the height of the engaging columns 121 of the other end plate 12 (as Figure 12 shown).

[0050] (g) Second waiting for curing step S170: Wait for the bonding glue 30 to dry and fix naturally, strengthen the bonding and fixing between the other ends of the tubular membranes 20 and the other end plate 12, and make the other ends of the tubular membranes 20 bond and fix with each other, thus completing the encapsulation of the tubular membrane module (as Figure 4 shown).

[0051] From the structure of the above specific embodiments, the following benefits can be obtained:

[0052] 1. The structure of the tubular membrane module and its encapsulation method of the present invention can strengthen the bonding and fixing of the tubular membrane 20, the membrane housing 11 and the end plate 12, play a certain protective role for the tubular membrane 20, achieve good water flow distribution and water production collection, avoid deformation and even fracture of the tubular membrane, have high filtration efficiency, long service life, and improved practicability.

[0053] 2. The structure of the tubular membrane module and its encapsulation method of the present invention have a simple encapsulation method, are convenient and fast for encapsulation, reduce the manufacturing cost, meet the economic benefits, and improve the industrial competitiveness.

Claims

1. A tubular membrane module structure, comprising: A tubular membrane housing, which includes a membrane shell and two end plates. A through accommodating hole is provided inside the membrane shell, and at least one filtrate outlet communicating with the accommodating hole is provided on the outer periphery of the membrane shell. The two end plates are assembled and fixedly combined at both ends of the membrane shell. At least one of the two end plates is provided with a plurality of fitting columns on the surface facing the accommodating hole, and each fitting column is provided with a through hole penetrating the end plate; A plurality of tubular membranes, which are circular tubes and are bundled and arranged in the accommodating hole inside the membrane shell. At least one end of each tubular membrane is inserted and fixed on the fitting column of the end plate and communicates with the through hole of the fitting column. A distance is reserved between each tubular membrane and the end plate; and At least one bonding adhesive is poured into the accommodating hole of the membrane shell near the end plate provided with the fitting column, and the height of the bonding adhesive exceeds the height of the fitting column to strengthen the bonding strength between each tubular membrane and the end plate and make one end of each tubular membrane fixedly combined with each other.

2. The tubular membrane module structure according to claim 1, wherein each fitting column is in a conical shape that gradually expands from the end away from the end plate to the end close to the end plate.

3. The tubular membrane module structure according to claim 1, wherein the membrane shell is in a circular tube shape.

4. The tubular membrane module structure according to claim 1, wherein the outer periphery of the membrane shell is provided with two filtrate outlets communicating with the accommodating hole. The two end plates are respectively provided with a plurality of fitting columns on the surface facing the accommodating hole. Both ends of each tubular membrane are respectively inserted and fixed on the fitting columns of the two end plates. The number of the at least one bonding adhesive is two, and the two bonding adhesives are poured into the accommodating hole of the membrane shell near the two end plates.

5. The tubular membrane module structure according to claim 1 or 4, wherein the bonding adhesive is a two-liquid mixed hardening adhesive.

6. A method for encapsulating a tubular membrane module, comprising the following steps: (a) Inserting the tubular membrane step: Place one end plate on a flat surface, insert one end of a bundle of a plurality of tubular membranes on a plurality of fitting columns provided on one surface of the end plate and fix them, and reserve a distance between them and the end plate; (b) Putting on the membrane shell step: Put one end of a membrane shell on the end plate so that the plurality of tubular membranes are accommodated in an accommodating hole provided inside the membrane shell. At least one filtrate outlet communicating with the accommodating hole is provided on the outer periphery of the membrane shell; (c) Glue pouring step: Inject a liquid bonding adhesive into the accommodating hole of the membrane shell through the filtrate outlet, and let it flow by gravity between each tubular membrane close to the end plate. The height of the bonding adhesive exceeds the height of the fitting column; (d) First waiting for curing step: Wait for the bonding adhesive to dry and fix, strengthen the bonding between one end of each tubular membrane and the end plate, and make one end of each tubular membrane fixedly combined with each other; (e) Assembling the other end plate step: Assemble the other end plate on the other end of the membrane shell and fixedly combine them.

7. The method for encapsulating a tubular membrane module according to claim 6, wherein each fitting column is provided with a through hole penetrating the end plate.

8. The tubular membrane module encapsulation method according to claim 6, wherein in the step (e) of assembling the other end plate, the other ends of the plurality of tubular membranes in a bundle are inserted onto a plurality of fitting columns provided on one side of the other end plate and fixed, and a spacing is reserved between the other ends and the other end plate.

9. The tubular membrane module encapsulation method according to claim 6, wherein in the step (d) of the first waiting for curing, the bonding adhesive is fixed by natural drying.

10. The tubular membrane module encapsulation method according to claim 6, wherein after the step (e) of assembling the other end plate, it further includes a step (f) of flipping and pouring glue and a step (g) of the second waiting for curing. In the step (f) of flipping and pouring glue, the membrane housing is flipped 180 degrees, and the liquid bonding adhesive is injected into the accommodating holes of the membrane housing from the filtrate outlet, and flows downward by gravity to between the tubular membranes close to the other end plate. The height of the bonding adhesive exceeds the height of the fitting columns of the other end plate. In the step (g) of the second waiting for curing, wait for the bonding adhesive to be fixed by natural drying, strengthen the bonding and fixing of the other ends of the tubular membranes to the other end plate, and make the other ends of the tubular membranes bond and fix with each other.

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