Heavy ion microporous membrane water purification equipment

Abstract

The utility model provides a heavy ion microporous membrane water purification equipment, including shell and set up the support leg of shell, the shell is detachably connected with the upper cover, the upper cover passes through the water inlet pipe, the water inlet pipe is sleeved with the first pipe sleeve, the shell passes through the filtrate pipe and the blow-off pipe, the filtrate area is formed among the shell, the upper cover and the filter core, and the filter core passes through the filtrate area. One end of the filtrate pipe is communicated with the filtrate area, the blow-off pipe is sleeved with a second pipe sleeve, and a filter element is arranged in the shell; the filter element comprises an upper end cover, a filter membrane and a lower end cover which are connected in sequence, the upper end cover is matched with the first pipe sleeve in an inserted mode, the lower end cover is matched with the second pipe sleeve in an inserted mode, and the filter membrane is cylindrical and gradually contracts from the position close to the upper end cover to the position close to the lower end cover. The filter has the advantages of good filtering effect and easiness in replacement of the filter element.

Description

Technical Field

[0001] The utility model relates to the technical field of water purification, in particular to a heavy ion microporous membrane water purification device. Background Art

[0002] As people's water consumption increases, domestic sewage will cause environmental pollution if it is not treated. Therefore, sewage needs to be purified, which includes the step of filtering impurities in the sewage.

[0003] Membrane filtration technology utilizes high-precision, selectively separating membrane materials. Based on the principles of mechanical screening, it achieves separation and concentration of different components in a liquid by precisely matching the filter element with the material system. This technology is gaining increasing attention in the water treatment sector because it can remove water pollutants that are difficult to remove with conventional treatment processes.

[0004] In order to facilitate the water purification and filtration of impurities in sewage, technicians have developed relevant water purification equipment. For example, the utility model with the authorization publication number CN202876655U involves an internal pressure filter, including a filter tank and a tank cover that is sealed with the filter tank. A filter membrane is arranged in the filter tank, and the filter membrane separates the inner cavity of the filter tank into a raw liquid cavity and a filtrate cavity. The raw liquid cavity is provided with a water inlet and a drain outlet, and the filtrate cavity is provided with a filtrate outlet. When in use, the raw liquid enters the raw liquid cavity through the water inlet, and the raw liquid is separated by the filter membrane, so that the liquid part enters the filtrate cavity, and the solid particles are blocked by the filter membrane and remain in the raw liquid cavity or adhere to the filter membrane. Since the filter membrane is parallel to the water flow direction of the raw liquid cavity, the raw liquid will continuously flush the filter membrane while flowing from the water inlet to the drain outlet, thereby removing the solid particles attached to the filter membrane. The filtrate in the filtrate cavity is sent to the water quality detection instrument through the filtrate outlet.

[0005] However, when using water purification equipment in the prior art, the filter membrane is arranged on one side of the raw liquid cavity, the membrane area and membrane flux are limited, and the raw liquid far away from the filter membrane will not be effectively filtered and discharged, that is, the shape of the filter membrane cannot effectively promote the filtration of the raw liquid through the membrane. At the same time, since the filter membrane is parallel to the water flow direction of the raw liquid cavity, the flow rate and angle are limited, and the effect of parallel washing of solid particles on the filter membrane is limited, which affects the permeability of the filter membrane, resulting in poor filtration effect. Utility Model Content

[0006] In order to improve the problem of poor filtering effect of existing filter membranes, the utility model provides a heavy ion microporous membrane water purification device with good filtering effect and easy replacement of filter elements.

[0007] The utility model provides a heavy ion microporous membrane water purification device, which adopts the following technical solutions:

[0008] A heavy ion microporous membrane water purification device comprises a housing and support legs provided on the housing, the housing being detachably connected to an upper cover, the upper cover being provided with a water inlet pipe, the water inlet pipe being provided with a first pipe sleeve, the housing being provided with a filtrate pipe and a sewage pipe, a filtrate area being formed between the housing, the upper cover and a filter element, one end of the filtrate pipe being in communication with the filtrate area, the sewage pipe being provided with a second pipe sleeve, and a filter element being provided within the housing;

[0009] The filter element includes an upper end cover, a filter membrane, and a lower end cover connected in sequence. The upper end cover is plugged into the first pipe sleeve, and the lower end cover is plugged into the second pipe sleeve. The filter membrane is cylindrical and gradually shrinks from close to the upper end cover to close to the lower end cover.

[0010] Through the above technical solution, when in use, the raw liquid is connected to the filter element through the water inlet pipe, and the water flows through the contraction area of ​​the filter membrane. The residence time of the raw liquid in the gradual contraction process is relatively long. The cylindrical filter membrane can provide the contact area, and the flow rate is accelerated to make the contact between the water flow and the filter membrane closer and more efficient, and the pressure is reduced, so that a pressure difference is formed at both ends of the filter membrane. The pressure difference can more effectively drive the water flow through the filter membrane for filtration. The filtered filtrate is stored in the filtrate area, and the filtrate in the filtrate area can be discharged through the filtrate pipe. At the same time, through the shape of the filter membrane and the direction of water flow, the sewage and intercepted particulate impurities are guided to be discharged from the drain pipe, thereby reducing the pollutants remaining in the filter membrane, further helping to prevent filter blockage and maintain the permeability of the filter membrane, thereby improving the efficiency and speed of filtration.

[0011] Preferably, the shell is provided with a connecting pipe, the connecting pipe is connected to the interior of the tank body, the outer wall of the connecting pipe is provided with an external thread, the upper cover is provided with a connecting hole corresponding to the connecting pipe, and the inner wall of the connecting hole is provided with an internal thread that is threadedly matched with the external thread.

[0012] Through the above technical solution, when installing, the upper cover can be installed on the shell by aligning the upper cover with the opening and driving the upper cover to rotate. When disassembling, the upper cover can be detached from the shell by driving the upper cover to rotate, so that the opening of the shell can be opened or closed.

[0013] Preferably, a sealing ring groove is further provided at the bottom of the connecting hole, and a sealing ring is provided in the sealing ring groove.

[0014] Through the above technical solution, the sealing ring can prevent the liquid in the shell from being contaminated or leaking after installation.

[0015] Preferably, the water inlet pipe includes a large head section and a small head section that are interconnected, the radius of the large head section is larger than the radius of the small head section, and the large head section and the small head section are on the same central axis, and the small head section is connected to the raw liquid source.

[0016] Through the above technical solution, when the raw liquid enters the water, the raw liquid enters the large head section from the small head section and then enters the shell, and passes through the transition between the small head section and the large head section to facilitate proper diffusion of the raw liquid, thereby increasing subsequent contact with the filter membrane.

[0017] Preferably, the first pipe sleeve is provided with a first slot surrounding the water inlet pipe, the second pipe sleeve is provided with a second slot surrounding the sewage pipe, the upper end cover is provided with an upper through hole connected to the interior of the filter membrane, the upper end cover is provided with a first plug ring, the first plug ring surrounds the upper through hole, the first plug ring and the first slot are plugged into each other, the lower end cover is provided with a lower through hole connected to the interior of the filter membrane, the lower end cover is provided with a second plug ring, the second plug ring surrounds the lower through hole, and the second plug ring and the second slot are plugged into each other.

[0018] With the above technical solution, when installing the filter element, the second insert ring is inserted into the second slot, the upper cover is installed on the housing, and the first insert ring is inserted into the first slot. When removing the filter element, the upper cover is removed from the housing and the filter element is removed, thereby allowing the filter element to be quickly installed or removed from the housing, facilitating filter element replacement.

[0019] Preferably, the first insert ring is further provided with an arc-shaped first guide edge, and the second insert ring is further provided with an arc-shaped second guide edge.

[0020] Through the above technical solution, the first guide edge is conducive to smoother insertion of the first insert ring and the first slot, and the second guide edge is conducive to smoother insertion of the second insert ring and the second slot.

[0021] Preferably, the filter membrane is a double-layer structure, the inner layer of the filter membrane is a filter mesh layer, the filter mesh layer is a supportive mesh structure, and the outer layer of the filter membrane is a heavy ion microporous membrane layer.

[0022] Through the above technical solution, during filtration, the raw liquid is driven to pass through the filter layer and the heavy ion microporous membrane layer. The filter layer filters the solid particles in the raw liquid, and the heavy ion microporous membrane layer removes tiny particles, suspended matter, bacteria and other pollutants in the water, thereby filtering the raw liquid. The filter layer is beneficial to reducing the wear of the heavy ion microporous membrane, and the filter layer pre-filters the raw liquid, which is also beneficial to reducing the load of the heavy ion microporous membrane, thereby extending the service life of the filter membrane.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] When in use, the stock solution is introduced through the small head section, and the stock solution enters the filter element from the large head section. The transition between the small head section and the large head section facilitates proper diffusion of the stock solution, thereby increasing subsequent contact with the filter membrane.

[0025] The raw liquid flows into the filter membrane, and the water flows through the contraction area of ​​the filter membrane. The residence time of the raw liquid in the gradual contraction process is relatively long. The cylindrical filter membrane can provide a contact area, and the flow rate is accelerated to make the contact between the water flow and the filter membrane closer and more efficient. The pressure is reduced, which accelerates the movement of the raw liquid to the low-pressure side, so that a pressure difference is formed at both ends of the filter membrane. The pressure difference can more effectively drive the water flow through the filter membrane. The filter layer filters the solid particles in the raw liquid, and the heavy ion microporous membrane layer intercepts the tiny particles, suspended matter, bacteria and other pollutants in the water, thereby filtering the raw liquid. The filter layer is beneficial to reducing the wear of the heavy ion microporous membrane, and the filter layer pre-filters the raw liquid, which is also beneficial to reducing the load on the heavy ion microporous membrane, thereby extending the service life of the filter membrane.

[0026] Through the shape of the filter membrane, the direction of water flow and the action of gravity, the sewage and the intercepted particulate impurities are guided to be discharged from the sewage pipe, thereby reducing the pollutants remaining in the filter membrane, preventing filter blockage, maintaining the permeability of the filter membrane, and thus improving the efficiency and speed of filtration. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0029] Figure 2 It is a structural explosion diagram of an embodiment of the present utility model.

[0030] Figure 3 It is a schematic diagram of the relationship between the upper cover and the sealing ring in the embodiment of the utility model.

[0031] Figure 4 It is a cross-sectional view of the housing in the embodiment of the present utility model.

[0032] Figure 5 yes Figure 4 Enlarged view of point A in the middle.

[0033] Figure 6 It is a structural schematic diagram of the filter element in the embodiment of the present utility model.

[0034] Figure 7 It is a cross-sectional view of the overall structure in an embodiment of the present utility model.

[0035] Among them, the component numbers are as follows: 1. Shell; 2. Support foot; 3. Upper cover; 4. Water inlet pipe; 41. Large head section; 42. Small head section; 5. First pipe sleeve; 6. Filtrate pipe; 7. Drain pipe; 8. Filtrate area; 9. Second pipe sleeve; 10. Filter element; 101. Upper end cover; 102. Filter membrane; 103. Lower end cover; 11. Connecting pipe; 12. Connecting hole; 13. Sealing ring groove; 14. Sealing ring; 15. First slot; 16. Second slot; 17. Upper through hole; 18. First plug ring; 181. First guide edge; 19. Lower through hole; 20. Second plug ring; 201. Second guide edge. DETAILED DESCRIPTION

[0036] The following is a combination of the appended examples of the present invention Figures 1 to 7 The technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0037] A heavy ion microporous membrane water purification device, referring to Figure 1 , including a cylindrical shell 1, an upper cover 3 detachably connected to the shell 1 and a supporting foot 2 for supporting the shell 1.

[0038] Reference Figure 1 and Figure 2 , the shell 1 is distributed in the vertical direction, and the top of the shell 1 is open. A connecting pipe 11 is provided at one end of the shell 1 at the opening. The connecting pipe 11 is distributed along the length direction of the shell 1, and the connecting pipe 11 is connected to the interior of the tank. The outer wall of the connecting pipe 11 is provided with an external thread. The upper cover 3 is used to open or close the opening, and the upper cover 3 is provided with a connecting hole 12 corresponding to the connecting pipe 11. The connecting hole 12 is circular in shape corresponding to the connecting pipe 11, and the inner wall of the connecting hole 12 is provided with an internal thread that is threadedly matched with the external thread, so that the upper cover 3 is threadedly matched with the shell 1. During installation, the upper cover 3 can be installed on the shell 1 by aligning the upper cover 3 with the opening and driving the upper cover 3 to rotate. During disassembly, the upper cover 3 can be detached from the shell 1 by driving the upper cover 3 to rotate, so that the opening of the shell 1 can be opened or closed. Combined Figure 3 In addition, a sealing ring groove 13 is provided at the bottom of the connecting hole 12, and a sealing ring 14 is provided in the sealing ring groove 13, so that the sealing ring 14 prevents the liquid in the housing 1 from being contaminated or leaking after installation.

[0039] Reference Figure 1 and Figure 2The supporting feet 2 are arranged at the bottom end of the shell 1. There are three supporting feet 2. The three supporting feet 2 are evenly spaced along the circumferential direction of the shell 1 so that the three supporting feet 2 can stably support the shell 1.

[0040] Reference Figure 3 and Figure 4 The upper cover 3 is penetrated by a water inlet pipe 4, which includes a large head section 41 and a small head section 42 that are interconnected. Both the large head section 41 and the small head section 42 are long circular tubes and are distributed along the length direction of the shell 1. The radius of the large head section 41 is larger than the radius of the small head section 42, and the large head section 41 and the small head section 42 are located on the same central axis. The large head section 41 is penetrated by the upper cover 3, and one end of the large head section 41 extends into and is connected to the connecting hole 12. The other end of the large head section 41 is connected to the small head section 42, and the small head end is connected to the source of the raw liquid (water to be filtered). When in use, the raw liquid is introduced through the small head section 42, and the raw liquid enters the shell 1 from the large head section 41. The raw liquid passes through the transition between the small head section 42 and the large head section 41 to facilitate proper diffusion of the raw liquid, thereby increasing subsequent contact with the filter membrane 102.

[0041] Reference Figure 4 and Figure 5 A drain pipe 7 is provided at the end of the housing 1 facing away from the outlet. The drain pipe 7 is also a long, circular tube and extends along the length of the housing 1. The radius of the drain pipe 7 is smaller than the radius of the large end section 41. A filter element 10 is provided within the housing 1 for filtration. During use, the raw liquid is introduced through the small end section 42, enters the housing 1 from the large end section 41, and is filtered through the filter element 10 to obtain a filtrate. The filtered particulate impurities and sewage are then discharged through the drain pipe 7.

[0042] Specifically, refer to Figure 6 The filter element 10 includes an upper end cover 101, a filter membrane 102, and a lower end cover 103 connected in sequence, wherein the upper end cover 101 and the lower end cover 103 will jointly fix the filter membrane 102, and the filter membrane 102 is cylindrical. The upper end cover 101 is circular, and one end of the filter membrane 102 is connected to the inner side of the upper end cover 101. The upper end cover 101 is provided with an upper through hole 17, which passes through the upper end cover 101 and is connected to the inside of the filter membrane 102. The large head section 41 is located at one end of the connecting hole 12 and is sleeved with a first pipe sleeve 5. The first pipe sleeve 5 is provided with a first slot 15 on the side facing the inside of the shell 1, and the first slot 15 is annular. A first plug ring 18 is provided on the side of the upper end cover 101 away from the filter membrane 102. The first plug ring 18 surrounds the upper through hole 17, and the first plug ring 18 and the first slot 15 are plugged into and matched with each other.

[0043] Replay Figure 2The lower end cover 103 is also circular, and the radius of the lower end cover 103 is smaller than the radius of the upper end cover 101. The other end of the filter membrane 102 is connected to the inner side of the lower end cover 103. The lower end cover 103 is provided with a lower through hole 19, which passes through the lower end cover 103 and is connected to the inside of the filter membrane 102. One end of the sewage pipe 7 located in the shell 1 is provided with a second pipe sleeve 9, and the second pipe sleeve 9 is provided with a second slot 16 on the side facing the shell 1. The second slot 16 is annular. A second plug ring 20 is provided on the side of the lower end cover 103 facing away from the filter membrane 102. The second plug ring 20 surrounds the lower through hole 19, and the second plug ring 20 and the second slot 16 are plugged into each other.

[0044] When installing the filter element 10, the upper cover 3 is installed on the housing 1 by inserting the second insert ring 20 into the second slot 16. At this time, the second insert ring 20 is inserted into the second slot 16, so that the filter element 10 is fixed in the housing 1 through the plug-in fit at both ends. When disassembling, the filter element 10 can be taken out by removing the upper cover 3 from the housing 1, so that the filter element 10 can be quickly installed or removed from the housing 1, so as to facilitate the replacement of the filter element 10. When filtering, the raw liquid is connected to the water inlet pipe 4, and the raw liquid enters the filter element 10 through the upper through hole 17, thereby filtering through the filter element 10 to obtain filtrate, and the filtered particulate impurities and sewage enter the sewage pipe 7 through the lower through hole 19, and finally discharged through the sewage pipe 7.

[0045] In addition, refer to Figure 6 and Figure 7 The first insert ring 18 is further provided with an arcuate first guide edge 181, which surrounds the first insert ring 18 and facilitates smoother insertion of the first insert ring 18 into the first slot 15. Similarly, the second insert ring 20 is further provided with an arcuate second guide edge 201, which surrounds the second insert ring 20 and facilitates smoother insertion of the second insert ring 20 into the second slot 16.

[0046] Reference Figure 6 and Figure 7 The filter membrane 102 gradually shrinks from near the upper end cover 101 to near the lower end cover 103. When the raw liquid flows into the filter membrane 102 from the upper through hole 17, as the water flows through the shrinkage area of ​​the filter membrane 102, the raw liquid stays for a relatively long time in the gradual shrinkage process. The cylindrical filter membrane 102 can provide a contact area, and the flow rate is accelerated to make the contact between the water flow and the filter membrane 102 closer and more efficient, and the pressure is reduced, so that a pressure difference is formed at both ends of the filter membrane 102. The pressure difference can more effectively drive the water flow through the filter membrane 102, thereby significantly improving the filtration effect.

[0047] Filter membrane 102 has a double-layer structure. The inner layer of filter membrane 102 is a mesh layer, which is used to filter solid particles to facilitate pre-filtration of the raw liquid. The mesh layer has a supportive mesh structure. The outer layer of filter membrane 102 is a heavy ion microporous membrane layer, which is used to remove small particles, suspended matter, bacteria, and other contaminants in the water. During filtration, the raw liquid is driven to pass through the filter layer and the heavy ion microporous membrane layer. The filter layer filters the solid particles in the raw liquid, and the heavy ion microporous membrane layer intercepts the tiny particles, suspended matter, bacteria and other pollutants in the water, thereby filtering the raw liquid. The filter layer is beneficial to reduce the wear of the heavy ion microporous membrane, and the filter layer pre-filters the raw liquid, which is also beneficial to reduce the load of the heavy ion microporous membrane, thereby extending the service life of the filter membrane 102. At the same time, through the shape of the filter membrane 102, the direction of water flow and the effect of gravity, it is beneficial to better guide the sewage and the intercepted solid particles to be discharged from the sewage pipe 7, thereby reducing the pollutants remaining in the filter membrane 102, and further helping to prevent filtration blockage and maintain the permeability of the filter membrane 102, thereby improving the efficiency and speed of filtration.

[0048] Reference Figure 7 When the filter element 10 is installed in the housing 1, a filtrate area 8 is formed between the housing 1, the upper cover 3, and the filter element 10, thereby storing the filtrate filtered by the filter membrane 102 in the filtrate area 8. A filtrate tube 6 is provided on one side of the housing 1, and one end of the filtrate tube 6 is connected to the filtrate area 8, so that the filtrate in the filtrate area 8 can be discharged through the filtrate tube 6.

[0049] The implementation principle of this application is: when in use, the raw liquid is connected through the small head section 42, and the raw liquid enters the filter element 10 from the large head section 41, and the transition between the small head section 42 and the large head section 41 is used to facilitate proper diffusion of the raw liquid, thereby increasing subsequent contact with the filter membrane 102.

[0050] Then the raw liquid flows into the filter membrane 102 through the upper through hole 17, and the water flows through the contraction area of ​​the filter membrane 102. The residence time of the raw liquid in the gradual contraction process is relatively long. The cylindrical filter membrane 102 can provide the contact area, and the flow rate is accelerated to make the contact between the water flow and the filter membrane 102 closer and more efficient. The pressure is reduced, so that a pressure difference is formed at both ends of the filter membrane 102. The pressure difference can more effectively drive the water flow through the filter membrane 102. The filter layer filters the solid particles in the raw liquid, and the heavy ion microporous membrane layer intercepts the tiny particles, suspended matter, bacteria and other pollutants in the water, thereby filtering the raw liquid. The filter layer is beneficial to reduce the wear on the heavy ion microporous membrane, and the filter layer pre-filters the raw liquid, which is also beneficial to reduce the load on the heavy ion microporous membrane, thereby extending the service life of the filter membrane 102. The filtrate filtered out by the filter membrane 102 is then stored in the filtrate area 8, and the filtrate in the filtrate area 8 is discharged through the filtrate pipe 6. At the same time, through the shape of the filter membrane 102, the direction of water flow and the action of gravity, the sewage and intercepted particulate impurities are guided to be discharged from the sewage pipe 7, thereby reducing the pollutants remaining in the filter membrane 102, which is conducive to preventing filter blockage and maintaining the permeability of the filter membrane 102, thereby improving the efficiency and speed of filtration.

[0051] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A heavy ion microporous membrane water purification device, comprising a housing (1) and a support leg (2) arranged on the housing (1), characterized in that: The housing (1) is detachably connected to an upper cover (3), the upper cover (3) is provided with a water inlet pipe (4), the water inlet pipe (4) is sleeved with a first pipe sleeve (5), the housing (1) is provided with a filtrate pipe (6) and a sewage pipe (7), a filtrate area (8) is formed between the housing (1), the upper cover (3) and the filter element (10), one end of the filtrate pipe (6) is in communication with the filtrate area (8), the sewage pipe (7) is sleeved with a second pipe sleeve (9), and a filter element (10) is provided in the housing (1); The filter element (10) comprises an upper end cover (101), a filter membrane (102), and a lower end cover (103) connected in sequence. The upper end cover (101) is plug-fitted to the first pipe sleeve (5), and the lower end cover (103) is plug-fitted to the second pipe sleeve (9). The filter membrane (102) is cylindrical and gradually shrinks from close to the upper end cover (101) to close to the lower end cover (103).

2. A heavy ion microporous membrane water purification device according to claim 1, characterized in that: The shell (1) is provided with a connecting pipe (11), the connecting pipe (11) is communicated with the interior of the tank body, the outer wall of the connecting pipe (11) is provided with an external thread, the upper cover (3) is provided with a connecting hole (12) corresponding to the connecting pipe (11), and the inner wall of the connecting hole (12) is provided with an internal thread that is threadably matched with the external thread.

3. A heavy ion microporous membrane water purification device according to claim 2, characterized in that: A sealing ring groove (13) is also provided at the bottom of the connecting hole (12), and a sealing ring (14) is provided in the sealing ring groove (13).

4. A heavy ion microporous membrane water purification device according to claim 1, characterized in that: The water inlet pipe (4) comprises a large head section (41) and a small head section (42) which are interconnected. The radius of the large head section (41) is larger than that of the small head section (42). The large head section (41) and the small head section (42) are located on the same central axis. The small head section (42) is connected to a raw liquid source.

5. The heavy ion microporous membrane water purification device according to claim 1, characterized in that: The first pipe sleeve (5) is provided with a first slot (15) surrounding the water inlet pipe (4), the second pipe sleeve (9) is provided with a second slot (16) surrounding the sewage discharge pipe (7), the upper end cover (101) is provided with an upper through hole (17) communicating with the interior of the filter membrane (102), the upper end cover (101) is provided with a first insert ring (18), the first insert ring (18) surrounds the upper through hole (17), the first insert ring (18) and the first slot (15) are plugged in and matched with each other, the lower end cover (103) is provided with a lower through hole (19) communicating with the interior of the filter membrane (102), the lower end cover (103) is provided with a second insert ring (20), the second insert ring (20) surrounds the lower through hole (19), and the second insert ring (20) and the second slot (16) are plugged in and matched with each other.

6. A heavy ion microporous membrane water purification device according to claim 5, characterized in that: The first inserting ring (18) is further provided with an arcuate first guiding edge (181), and the second inserting ring (20) is further provided with an arcuate second guiding edge (201).

7. The heavy ion microporous membrane water purification device according to claim 1, characterized in that: The filter membrane (102) is a double-layer structure, the inner layer of the filter membrane (102) is a filter mesh layer, the filter mesh layer is a supportive mesh structure, and the outer layer of the filter membrane (102) is a heavy ion microporous membrane layer.

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