Membrane separation device

Abstract

The utility model discloses a membrane separation device which comprises a shell, a first partition plate, a plurality of membrane pipes and a plurality of heating pipes, and the first partition plate is arranged in the shell to divide an inner cavity of the shell into a containing cavity and a vacuum cavity; the plurality of membrane tubes are arranged in the accommodating cavity at intervals; the multiple heating pipes are arranged in the containing cavity and correspondingly arranged outside the membrane pipe in a sleeving mode, and the outer wall of the membrane pipe and the inner walls of the heating pipes define a material cavity for materials to flow; the first partition plate is provided with a plurality of penetrating holes and a plurality of switching channels communicated with the penetrating holes, the ends of the membrane pipes penetrate through the penetrating holes of the first partition plate respectively and extend into the vacuum cavity, and the ends of the heating pipes are arranged in the penetrating holes of the first partition plate in a one-to-one correspondence mode. According to the present invention, the material is conveyed through the flow channel in the first separation plate, such that the effective length of the membrane pipe can be prolonged, and the membrane separation performance of the membrane separation device can be improved.

Description

Technical Field

[0001] This utility model relates to the field of membrane separation technology, and in particular to a membrane separation device. Background Technology

[0002] Membrane separation generally refers to the process of separating fluid mixtures by utilizing the selective permeation of membranes to different components. Membrane separation technology is widely used in petrochemical, biopharmaceutical, food processing, and environmental engineering fields. However, insufficient effective length of membrane tubing in existing membrane separation devices affects the membrane separation performance. Utility Model Content

[0003] The purpose of this invention is to propose a membrane separation device that aims to solve the problem that insufficient effective length of the membrane tube in existing membrane separation devices will affect the membrane separation performance of the device.

[0004] This utility model provides a membrane separation device, the membrane separation device comprising:

[0005] case;

[0006] A first partition plate is disposed inside the housing to divide the inner cavity of the housing into a receiving cavity and a vacuum cavity;

[0007] A plurality of membrane tubes are arranged at intervals within the accommodating cavity and are used to separate materials;

[0008] The device includes several heating tubes, which are disposed within the accommodating cavity and correspondingly sleeved on the outside of the membrane tube. The outer wall of the membrane tube and the inner wall of the heating tube enclose a material cavity for material flow.

[0009] The first partition plate is provided with a plurality of perforations and a plurality of transition channels connecting the plurality of perforations. The ends of the plurality of membrane tubes are respectively inserted through the plurality of perforations of the first partition plate and extend into the vacuum chamber. The ends of the plurality of heating tubes are placed one by one in the plurality of perforations of the first partition plate, so that the plurality of material chambers are connected to the plurality of transition channels.

[0010] In one embodiment, the membrane separation device further includes an adapter plate with a plurality of fixing holes. One end of each of the plurality of heating tubes is placed in a plurality of through holes in the first partition plate, and the other end is placed in a plurality of fixing holes in the adapter plate. The adapter plate is also provided with a plurality of connecting channels that connect the plurality of fixing holes.

[0011] In one embodiment, the first partition plate includes a first side plate and a second side plate attached to the first side plate. The first side plate is provided with a plurality of first holes, and the second side plate is provided with a plurality of second holes corresponding to the plurality of first holes. The first holes and the second holes constitute perforations of the first partition plate. The end of the membrane tube passes through the first holes and the second holes and extends into the vacuum chamber. The end of the heating tube is inserted into the first hole. The second side plate is provided with a plurality of transition grooves on the side near the first side plate. The plurality of transition grooves and the first side plate enclose a plurality of transition channels.

[0012] In one embodiment, the adapter plate includes a first adapter plate and a second adapter plate attached to the first adapter plate. The first adapter plate is provided with a plurality of first rotating holes, and the second adapter plate is provided with a plurality of second rotating holes corresponding one-to-one with the plurality of first rotating holes. The first rotating holes and the second rotating holes constitute the fixing holes of the adapter plate. The end of the membrane tube passes through the first rotating holes and the second rotating holes, and the end of the heating tube is inserted into the first hole. The second adapter plate has a plurality of connecting grooves on the side near the first adapter plate, and the plurality of connecting grooves and the first adapter plate surround each other to form a plurality of connecting channels.

[0013] In one embodiment, one end of each of the membrane tubes extends into the vacuum chamber, and the other end is respectively provided with a plug;

[0014] Alternatively, the adapter plate may further include a sealing plate, which is attached to the side of the second adapter plate away from the first adapter plate. The sealing plate has several sealing grooves on the side near the second adapter plate. One end of each of the membrane tubes extends into the vacuum chamber, and the other end is respectively sealed in one of the several sealing grooves.

[0015] In one embodiment, the cavity wall of the receiving cavity and the outer wall of the heating tube enclose a heating cavity. The housing is provided with a heating inlet communicating with the heating cavity and a heating outlet disposed away from the heating inlet. The membrane separation device further includes second partition plates, each of which is provided with a plurality of perforations. A plurality of membrane tubes and a plurality of heating tubes are respectively passed through the plurality of perforations of the plurality of second partition plates. The plurality of second partition plates are staggered and spaced apart from each other within the receiving cavity to divide the heating cavity into serpentine flow channels; and / or,

[0016] The membrane separation device also includes a U-shaped transfer tube, the two ends of which are connected to two corresponding heating tubes.

[0017] In one embodiment, the housing includes a first housing and a second housing detachably connected to the first housing, a first partition plate is disposed between the first housing and the second housing, one side of the first partition plate surrounds the inner cavity of the first housing to form the receiving cavity, and the other side of the first partition plate surrounds the inner cavity of the second housing to form the vacuum cavity;

[0018] The second shell is provided with a vacuum port that communicates with the vacuum cavity;

[0019] One or both of the first partition plate and the adapter plate are provided with a first interface and a second interface, and the first interface and the second interface are respectively connected to the adapter channel or the connecting channel.

[0020] In one embodiment, the housing includes a first housing and a second housing, and the two sides of the first partition plate are detachably connected to the first housing and the second housing, respectively.

[0021] The first partition plate, the adapter plate, a plurality of membrane tubes and a plurality of heating tubes constitute an integrated membrane core, which is detachably installed in the housing.

[0022] In one embodiment, the membrane core is provided, the first shell is provided with a heating inlet and a heating outlet located away from the heating inlet; the second shell is provided with a vacuum port communicating with the vacuum chamber; the first partition plate is provided with a first interface and a second interface, the first interface and the second interface being respectively connected to a plurality of the transfer channels;

[0023] Alternatively, two membrane cores are provided and inserted into both sides of the first shell, and two second shells are provided accordingly and detachably connected to both sides of the first shell; each second shell is provided with a vacuum port that communicates with the corresponding vacuum chamber; the first partition plate is provided with a first interface and a second interface, and the first interface and the second interface are respectively connected to a plurality of the transfer channels.

[0024] In one embodiment, the membrane core further includes a membrane shell, on which the first partition plate, the adapter plate, a plurality of membrane tubes, and a plurality of heating tubes are integrated and mounted. The membrane shell and the outer wall of the heating tubes enclose a heating cavity. The membrane shell is provided with an inlet and an outlet communicating with the heating cavity. The second shell is provided with a vacuum port communicating with the vacuum cavity. The first partition plate is provided with a first interface and a second interface, which are respectively connected to a plurality of adapter channels. A plurality of partition cavities are provided inside the first shell, and a plurality of membrane cores are provided, each corresponding to one of the plurality of partition cavities. A plurality of second shells are provided and are detachably mounted on the first shell, forming a plurality of vacuum cavities with the plurality of first partition plates.

[0025] The membrane core is arranged in a rectangular shape, and the membrane separation device is arranged in a rectangular shape.

[0026] The present invention has the following beneficial effects:

[0027] The membrane separation device of this invention has a number of perforations on the first partition plate and a number of transfer channels connecting the perforations. The ends of a number of membrane tubes are respectively inserted through the perforations of the first partition plate and extend into the vacuum chamber. The ends of a number of heating tubes are correspondingly placed in the perforations of the first partition plate, so that the material chambers are connected to the transfer channels. The material is conveyed through the flow channels in the first partition plate, so there is no need to set up a separate raw material chamber in the shell to convey the material into the material chamber. This can extend the effective length of the membrane tubes and improve the membrane separation performance of the membrane separation device. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] in:

[0030] Figure 1 This is a schematic diagram of a membrane separation device in one embodiment.

[0031] Figure 2 for Figure 1 Schematic diagram of the through holes on the first partition plate in the membrane separation device shown. Figure 1 .

[0032] Figure 3 for Figure 1Schematic diagram of the through holes on the first partition plate in the membrane separation device shown. Figure 2 .

[0033] Figure 4 This is a schematic diagram of a membrane separation device in one embodiment.

[0034] Figure 5 for Figure 4 A cross-sectional view of the membrane separation device shown.

[0035] Figure 6 This is a schematic diagram of a membrane separation device in one embodiment.

[0036] Figure 7 for Figure 6 A cross-sectional view of the membrane separation device shown.

[0037] Figure 8 This is a schematic diagram of a membrane separation device in one embodiment.

[0038] Figure 9 for Figure 8 A cross-sectional view of the membrane separation device shown.

[0039] Figure 10 This is a schematic diagram of a membrane separation device in one embodiment.

[0040] Figure 11 for Figure 10 A schematic diagram of the through holes on the first separator plate in the membrane separation device shown.

[0041] Figure 12 This is a schematic diagram of a membrane separation device in one embodiment.

[0042] Figure 13 This is a schematic diagram of a membrane separation device in one embodiment.

[0043] Figure 14 This is a schematic diagram of a membrane separation device in one embodiment.

[0044] Figure 15 This is a front view of a membrane separation apparatus according to one embodiment.

[0045] Figure 16 for Figure 15 Top view of the membrane separation device shown.

[0046] Figure 17 for Figure 15 A cross-sectional view of the membrane separation device shown.

[0047] Figure 18 This is a schematic diagram of the partition chamber on the membrane separation device in one embodiment.

[0048] Reference numerals: 310, Housing; 311, First Housing; 312, Second Housing; 314, Separation Chamber; 320, First Separator Plate; 321, Adapter Channel; 322, First Side Plate; 323, Second Side Plate; 324, Sealing Plate; 325, First Interface; 326, Second Interface; 330, Membrane Tube; 340, Heating Tube; 350, Adapter Plate; 351, First Transformer Plate; 352, Second Transformer Plate; 353, Sealing Plate; 360, Adapter Pipe; 370, Second Separator Plate;

[0049] 401. Heating inlet; 402. Heating outlet; 403. Vacuum port; 404. Material inlet; 405. Material outlet;

[0050] 410. Containing cavity; 420. Vacuum cavity; 430. Material cavity; 440. Heating cavity. Detailed Implementation

[0051] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0052] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0053] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" and "second" may explicitly or implicitly include at least one of the stated features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0054] This utility model discloses a membrane separation device. Please refer to [link / reference]. Figures 1 to 18The membrane separation device includes a housing 310, a first partition plate 320, a plurality of membrane tubes 330, and a plurality of heating tubes 340. The first partition plate 320 is disposed inside the housing 310 to divide the inner cavity of the housing 310 into a receiving cavity 410 and a vacuum cavity 420. The plurality of membrane tubes 330 are spaced apart from each other in the receiving cavity 410. The plurality of heating tubes 340 are disposed in the receiving cavity 410 and are correspondingly sleeved on the outside of the membrane tubes 330. The outer wall of the membrane tubes 330 and the inner wall of the heating tubes 340 enclose a material cavity 430 for material flow. The first partition plate 320 is provided with a plurality of perforations, and A plurality of connecting channels 321 with a plurality of perforations are connected. The ends of a plurality of membrane tubes 330 are respectively inserted through a plurality of perforations in the first partition plate 320 and extend into the vacuum chamber 420. The ends of a plurality of heating tubes 340 are placed one by one in the plurality of perforations in the first partition plate 320, so that a plurality of material chambers 430 are connected to a plurality of connecting channels 321. The material is conveyed through the flow channel in the first partition plate 320, so there is no need to set up a separate raw material chamber in the housing 310 to convey the material in the material chamber 430. This can extend the effective length of the membrane tubes 330 and improve the membrane separation performance of the membrane separation device.

[0055] It is understandable that when the number of membrane tubes 330 is the same as the number of heating tubes 340, several heating tubes 340 are fitted one-to-one around the outside of the membrane tubes 330. When the membrane separation device is also equipped with a steel pipe for replacing the membrane tubes 330, then a portion of the heating tubes 340 are fitted around the outside of the membrane tubes 330, and another portion is fitted around the outside of the steel pipe, thereby adjusting the membrane area of ​​the membrane separation device.

[0056] In one embodiment, please refer to Figures 1 to 9 The membrane separation device also includes a converter plate 350, which has several fixing holes. One end of several heating tubes 340 is placed in several through holes of the first partition plate 320, and the other end is placed in several fixing holes of the converter plate 350. The converter plate 350 also has several connecting channels that connect the fixing holes, thereby supporting the membrane tube 330 and the heating tube 340 on the other side.

[0057] Of course, in other embodiments, please refer to Figures 10 to 14 The membrane separation device also includes a transfer tube 360, which is U-shaped and has two ends connected to two corresponding heating tubes 340, thereby supporting the membrane tube 330 and the heating tube 340 on the other side and transferring materials through the transfer tube 360.

[0058] In one embodiment, please refer to Figures 1 to 9The first partition plate 320 includes a first side plate 322 and a second side plate 323 attached to the first side plate 322. The first side plate 322 is provided with a plurality of first holes, and the second side plate 323 is provided with a plurality of second holes corresponding to the plurality of first holes. The first holes and the second holes constitute the perforations of the first partition plate 320. The end of the membrane tube 330 passes through the first holes and the second holes and extends into the vacuum chamber 420. The end of the heating tube 340 is inserted into the first hole. The second side plate 323 is provided with a plurality of transition grooves on the side close to the first side plate 322. The plurality of transition grooves and the first side plate 322 surround each other to form a plurality of transition channels 321. By separating the two, the processing and setting of the first partition plate 320 is facilitated and the cost is low.

[0059] Specifically, both the first side plate 322 and the second side plate 323 are porous metal plates. The membrane tube 330 and the first partition plate 320 can be connected and fixed by one or more methods such as expansion joint, welding, and expansion welding. A sealing plate 324 is also provided between the first side plate 322 and the second side plate 323.

[0060] Furthermore, the first partition plate 320 is provided with a first interface 325 and a second interface 326. The first interface 325 and the second interface 326 are respectively connected to a plurality of the transfer channels and serve as the inlet and outlet of materials.

[0061] In one embodiment, please refer to Figures 1 to 9 The adapter plate 350 includes a first adapter plate 351 and a second adapter plate 352 attached to the first adapter plate 351. The first adapter plate 351 is provided with a plurality of first rotating holes, and the second adapter plate 352 is provided with a plurality of second rotating holes corresponding to the plurality of first rotating holes. The first rotating holes and the second rotating holes constitute the fixing holes of the adapter plate 350. The end of the membrane tube 330 passes through the first rotating holes and the second rotating holes, and the end of the heating tube 340 is inserted into the first hole. The second adapter plate 352 is provided with a plurality of connecting grooves on the side near the first adapter plate 351. The plurality of connecting grooves and the first adapter plate 351 enclose a plurality of connecting channels.

[0062] The separate design facilitates the processing and setup of the adapter board 350, resulting in lower costs.

[0063] In one embodiment, one end of several membrane tubes 330 extends into the vacuum chamber 420, and the other end is respectively provided with a plug, thereby facilitating the formation of a vacuum inside the membrane tubes 330. The low pressure and vacuum state can drive the membrane layer of the membrane tubes 330 to separate materials.

[0064] Of course, in other embodiments, the adapter plate 350 also includes a sealing plate 353, which replaces the sealing. The sealing plate 353 is attached to the side of the second adapter plate 352 away from the first adapter plate 351. The sealing plate 353 has several sealing grooves on the side of the second adapter plate 352. One end of several membrane tubes 330 extends into the vacuum chamber 420, and the other end is respectively sealed in several sealing grooves.

[0065] In one embodiment, the cavity wall of the accommodating cavity 410 and the outer wall of the heating tube 340 enclose the heating cavity 440 to form a heating cavity 440. The housing 310 is provided with a heating inlet 401 communicating with the heating cavity 440 and a heating outlet 402 disposed away from the heating inlet 401. The membrane separation device also includes a second partition plate 370. Each of the second partition plates 370 is provided with a number of perforations. A number of membrane tubes 330 and a number of heating tubes 340 are respectively inserted through the number of perforations of the second partition plates 370. The second partition plates 370 are arranged at intervals and staggered in the accommodating cavity 410 to divide the heating cavity 440 into a serpentine flow channel, which facilitates stable and uniform heating of the material.

[0066] In one embodiment, the housing 310 includes a first housing 311 and a second housing 312 detachably connected to the first housing 311. A first partition plate 320 is disposed between the first housing 311 and the second housing 312. One side of the first partition plate 320 encloses the inner cavity of the first housing 311 to form a receiving cavity 410, and the other side of the first partition plate 320 encloses the inner cavity of the second housing 312 to form a vacuum cavity 420. The second housing 312 is provided with a vacuum port 403 communicating with the vacuum cavity 420. One or both of the first partition plate 320 and the adapter plate 350 are provided with a first interface 325 and a second interface 326, which are respectively connected to the adapter channel 321 or the connecting channel. This allows the second housing 312 to be detached, facilitating maintenance and performance adjustment of the membrane separation device.

[0067] Taking a heating tube 340 with a diameter of φ20×2mm and a membrane tube 330 with a diameter of 12mm as an example, the internal material flow cross-sectional area corresponding to a single membrane tube 330 is 88mm². 2 The heating tubes 340 can be connected in parallel, either individually or in multiples, through the upper flow channel of the first partition plate 320, meaning the material flow cross-sectional area can be 88 mm². 2 The length difference between the heating tube 340 and the membrane tube 330 is only more than twice the wall thickness of the first partition plate 320. The material feeding chamber and the flow chamber between the stages are very small, which maximizes the effective utilization length of the membrane tube 330.

[0068] In one embodiment, please refer to Figures 6 to 9The housing 310 includes a first housing 311 and a second housing 312. The two sides of the first partition plate 320 are detachably connected to the first housing 311 and the second housing 312, respectively. The first partition plate 320, the adapter plate 350, several membrane tubes 330, and several heating tubes 340 constitute an integrated membrane core, which is detachably installed in the housing 310. This membrane core design facilitates replacement and maintenance.

[0069] Specifically, the second shell 312 is provided with a material inlet 404 and a material outlet 405, which facilitates the detachable installation of the membrane core.

[0070] In one embodiment, please refer to Figure 6 and Figure 7 The membrane core is provided with a heating inlet 401 and a heating outlet 402 located away from the heating inlet 401 on the first shell 311; a vacuum port 403 connected to the vacuum chamber 420 is provided on the second shell 312; a first interface and a second interface are provided on the first partition plate 320, and the first interface and the second interface are respectively connected to several transfer channels 321, thereby facilitating the integration, disassembly and assembly of the membrane core.

[0071] Of course, in other embodiments, please refer to Figure 8 and Figure 9 Two membrane cores may be provided and inserted into both sides of the first shell 311 respectively. Two second shells 312 are provided and detachably connected to both sides of the first shell 311 respectively. Each second shell 312 is provided with a vacuum port 403 that communicates with the corresponding vacuum chamber 420. The first partition plate 320 is provided with a first interface and a second interface, which are respectively connected to several transition channels 321.

[0072] In one embodiment, please refer to Figures 15 to 18 The membrane core also includes a membrane shell, a first partition plate 320, a transition plate 350, several membrane tubes 330, and several heating tubes 340 integrated and installed on the membrane shell. The membrane shell and the outer wall of the heating tubes 340 enclose a heating cavity 440. The membrane shell is provided with an inlet and an outlet communicating with the heating cavity 440. The second shell 312 is provided with a vacuum port 403 communicating with the vacuum cavity 420. The first partition plate 320 is provided with a first interface and a second interface, which are respectively connected to several transition channels 321. Several partition cavities 314 are provided inside the first shell 311, and several membrane cores are provided, one-to-one corresponding to several partition cavities 314. Several second shells 312 are provided, one-to-one corresponding to and detachably installed on the first shell 311, and enclosed with several first partition plates 320 to form several vacuum cavities 420. This facilitates the flexible arrangement of several membrane cores within the shell 310.

[0073] In one embodiment, the membrane core and the membrane separation device are both rectangular. Compared to the traditional cylindrical structure, the rectangular design ensures that the material flows through uniformly sized channels, maintaining a stable and controllable flow state and fully utilizing the dewatering efficiency of the membrane tube 330. In this embodiment, the internal chambers of the first shell 311 can be infinitely expanded by increasing the number and arrangement of the partition cavities 314, thereby increasing the number of membrane cores installed in a single membrane separation device, improving the membrane module's packing density, and reducing the device's membrane space density.

[0074] In the membrane separation device of this invention, the material flows longitudinally in the gap between the heating tube 340 and the membrane tube 330. After reaching the first separator 320, the flow direction changes in the flow channel on the first separator 320 and flows to the next set of membrane tubes 330. During the back-mixing process, the material is more fully back-mixed, eliminating concentration and temperature differences. At the same time, the heat medium outside the heating tube 340 provides uniform heating to the material through the heat conduction of the heating tube 340, so that the material in the membrane separation device is in a temperature controllable state throughout the dehydration process. The temperature of the heat medium can be adjusted according to different dehydration depth requirements to ensure that the material is in a constant temperature state in the membrane module.

[0075] To assess the heat replenishment capacity of membrane module equipment based on the required heat replenishment, "heat replenishment density" is calculated as heat replenishment area / membrane area (unit: m²). 2 / m 2 The heat compensation density value is ≥1.4m³. 2 / m 2 Taking a heating tube 340 with a diameter of φ20×2mm, a membrane tube 330 with a diameter of 12mm and a length of 1000mm, and a porous metal plate I with a thickness of 30mm as an example, if the number of membrane tubes 330 and metal tubes is both n, then the heat replenishment density is π×20×(1000-2×30)×n / (π×12×1000×n) = 1.57 m³. 2 / m 2 .

[0076] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A membrane separation device, characterized in that, The membrane separation device includes: case; A first partition plate is disposed inside the housing to divide the inner cavity of the housing into a receiving cavity and a vacuum cavity; A plurality of membrane tubes are arranged at intervals within the accommodating cavity and are used to separate materials; The device includes several heating tubes, which are disposed within the accommodating cavity and correspondingly sleeved on the outside of the membrane tube. The outer wall of the membrane tube and the inner wall of the heating tube enclose a material cavity for material flow. The first partition plate is provided with a plurality of perforations and a plurality of transition channels connecting the plurality of perforations. The ends of the plurality of membrane tubes are respectively inserted through the plurality of perforations of the first partition plate and extend into the vacuum chamber. The ends of the plurality of heating tubes are placed one by one in the plurality of perforations of the first partition plate, so that the plurality of material chambers are connected to the plurality of transition channels.

2. The membrane separation device according to claim 1, characterized in that, The membrane separation device further includes an adapter plate, which is provided with a plurality of fixing holes. One end of each of the plurality of heating tubes is placed in a plurality of through holes in the first partition plate, and the other end is placed in a plurality of fixing holes in the adapter plate. The adapter plate is also provided with a plurality of connecting channels that connect the plurality of fixing holes.

3. The membrane separation device according to claim 2, characterized in that, The first partition plate includes a first side plate and a second side plate attached to the first side plate. The first side plate is provided with a plurality of first holes, and the second side plate is provided with a plurality of second holes corresponding to the plurality of first holes. The first holes and the second holes constitute the perforations of the first partition plate. The end of the membrane tube passes through the first holes and the second holes and extends into the vacuum chamber. The end of the heating tube is inserted into the first hole. The second side plate is provided with a plurality of transition grooves on the side near the first side plate. The plurality of transition grooves and the first side plate enclose a plurality of transition channels.

4. The membrane separation device according to claim 3, characterized in that, The adapter plate includes a first adapter plate and a second adapter plate attached to the first adapter plate. The first adapter plate is provided with a plurality of first rotating holes, and the second adapter plate is provided with a plurality of second rotating holes corresponding one-to-one with the plurality of first rotating holes. The first rotating holes and the second rotating holes constitute the fixing holes of the adapter plate. The end of the membrane tube passes through the first rotating holes and the second rotating holes, and the end of the heating tube is inserted into the first hole. The second adapter plate has a plurality of connecting grooves on the side near the first adapter plate, and the plurality of connecting grooves and the first adapter plate enclose a plurality of connecting channels.

5. The membrane separation device according to claim 4, characterized in that, One end of each of the membrane tubes extends into the vacuum chamber, and the other end is respectively provided with a plug; Alternatively, the adapter plate may further include a sealing plate, which is attached to the side of the second adapter plate away from the first adapter plate. The sealing plate has several sealing grooves on the side near the second adapter plate. One end of each of the membrane tubes extends into the vacuum chamber, and the other end is respectively sealed in one of the several sealing grooves.

6. The membrane separation device according to claim 1, characterized in that, The cavity wall of the receiving cavity and the outer wall of the heating tube enclose the heating cavity to form a heating cavity. The housing is provided with a heating inlet communicating with the heating cavity and a heating outlet disposed away from the heating inlet. The membrane separation device further includes second partition plates, each of which has a plurality of perforations. A plurality of membrane tubes and a plurality of heating tubes are respectively inserted through the perforations of the plurality of second partition plates. The plurality of second partition plates are staggered and spaced apart within the receiving cavity to divide the heating cavity into serpentine flow channels; and / or, The membrane separation device also includes a U-shaped transfer tube, the two ends of which are connected to two corresponding heating tubes.

7. The membrane separation apparatus according to any one of claims 2 to 5, characterized in that, The housing includes a first housing and a second housing detachably connected to the first housing. A first partition plate is disposed between the first housing and the second housing. One side of the first partition plate surrounds the inner cavity of the first housing to form the receiving cavity, and the other side of the first partition plate surrounds the inner cavity of the second housing to form the vacuum cavity. The second shell is provided with a vacuum port that communicates with the vacuum cavity; One or both of the first partition plate and the adapter plate are provided with a first interface and a second interface, and the first interface and the second interface are respectively connected to the adapter channel or the connecting channel.

8. The membrane separation apparatus according to any one of claims 2 to 5, characterized in that, The housing includes a first housing and a second housing, and the two sides of the first partition plate are detachably connected to the first housing and the second housing, respectively. The first partition plate, the adapter plate, a plurality of membrane tubes and a plurality of heating tubes constitute an integrated membrane core, which is detachably installed in the housing.

9. The membrane separation device according to claim 8, characterized in that, The membrane core is provided in one unit. The first shell is provided with a heating inlet and a heating outlet located away from the heating inlet. The second shell is provided with a vacuum port connected to the vacuum chamber. The first partition plate is provided with a first interface and a second interface, which are respectively connected to a plurality of the transfer channels. Alternatively, two membrane cores are provided and inserted into both sides of the first shell, and two second shells are provided accordingly and detachably connected to both sides of the first shell; each second shell is provided with a vacuum port that communicates with the corresponding vacuum chamber; the first partition plate is provided with a first interface and a second interface, and the first interface and the second interface are respectively connected to a plurality of the transfer channels.

10. The membrane separation device according to claim 8, characterized in that, The membrane core further includes a membrane shell, on which the first partition plate, the adapter plate, a plurality of membrane tubes, and a plurality of heating tubes are integrated and mounted. The membrane shell and the outer wall of the heating tubes enclose a heating cavity. The membrane shell is provided with an inlet and an outlet communicating with the heating cavity. The second shell is provided with a vacuum port communicating with the vacuum cavity. The first partition plate is provided with a first interface and a second interface, which are respectively connected to a plurality of adapter channels. A plurality of partition cavities are provided inside the first shell, and a plurality of membrane cores are provided, each corresponding to one of the plurality of partition cavities. A plurality of second shells are provided and are detachably mounted on the first shell, forming a plurality of vacuum cavities with the plurality of first partition plates. The membrane core is arranged in a rectangular shape, and the membrane separation device is arranged in a rectangular shape.

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