Cross-flow reverse osmosis membrane element

Abstract

The utility model relates to the technical field of reverse osmosis membrane elements, and discloses a cross-flow type reverse osmosis membrane element which comprises a shell, a central water collecting pipe transversely penetrates through the interior of the shell, outer frames are symmetrically arranged on the two sides of the exterior of the shell, and fixing assemblies for improving the sealing effect are arranged at the joints of the outer frames and the shell. The fixing assembly comprises a sealing gasket, a limiting seat, an auxiliary frame, a connecting rod, a movable rod, a supporting frame, a first connecting seat and a second connecting seat. The cross-flow type reverse osmosis membrane element is provided with the outer frame, the sealing gasket, the supporting frame, the limiting seat, the auxiliary frame and the movable rod, so that the structural flexibility is optimized, meanwhile, a damaged part can be conveniently and specifically replaced in the later period, the maintenance cost is reduced, and the problems that the reverse osmosis membrane element adopts an integrated design, needs to be integrally dismantled during long-time use and replacement and is inconvenient to maintain are solved. And meanwhile, the connecting force between the structures is poor, collapse is likely to happen, falling is caused, and use is affected.

Description

Technical Field

[0001] The utility model relates to the technical field of reverse osmosis membrane elements, in particular to a cross-flow reverse osmosis membrane element. Background Art

[0002] Reverse osmosis membrane is a technology that uses semi-permeable membrane separation technology to obtain pure water by using pressure difference to densely remove harmful substances in water. In the reverse osmosis membrane process, the incoming water undergoes reverse osmosis membrane pre-treatment steps, such as mixed sedimentation, sand filter, activated carbon filter, etc. for pre-treatment, and then uses a high-pressure pump to pressurize the water and forcefully push it into the reverse osmosis membrane for filtration.

[0003] As the core technology of water treatment, reverse osmosis membrane elements are widely used in urban water plants, industrial wastewater treatment, sewage treatment and other fields. By removing difficult-to-treat microorganisms and harmful substances in the water, high-quality pure water that meets water quality standards can be obtained, thereby ensuring the safety and hygiene of public water use. At present, reverse osmosis membrane elements adopt an integrated design. When they are used for a long time and replaced, they need to be dismantled as a whole, which has a high investment cost. At the same time, the connection force between the structures is poor, and it is easy to collapse, resulting in falling off and affecting use.

[0004] Therefore, a new type of cross-flow reverse osmosis membrane element is proposed to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a cross-flow reverse osmosis membrane element to solve the problem that the reverse osmosis membrane element proposed in the above background technology adopts an integrated design and needs to be dismantled as a whole when replaced for a long time, which has a high investment cost. At the same time, the connection force between the structures is poor, which is easy to collapse and fall off, affecting the use.

[0006] To achieve the above object, the utility model provides the following technical solution: a cross-flow reverse osmosis membrane element, comprising a shell, a central water collecting pipe is transversely arranged inside the shell, an outer frame is symmetrically arranged on both sides of the outer shell, and a fixing component for improving the sealing effect is arranged at the connection between the outer frame and the shell;

[0007] The fixing assembly includes a sealing gasket, a limit seat, an auxiliary frame, a connecting rod, a movable rod, a supporting frame, a first connecting seat and a second connecting seat. The inner side wall of the outer frame is fixedly connected with a sealing gasket, and the outside of the sealing gasket is fitted and connected with the inner walls on both sides of the outer shell. The outside of both sides of the outer shell is fixedly connected with multiple groups of limit seats, and the outside of the outer frame is fixedly connected with multiple groups of first connecting seats and second connecting seats. The first connecting seat and the second connecting seat are respectively located on both sides of the limit seat, and a movable rod is movably connected between the first connecting seat and the second connecting seat;

[0008] Preferably, the outside of the movable rod is fixedly connected with a connecting rod, the outer end of the connecting rod is fixedly connected with an auxiliary frame, and the auxiliary frame is plug-connected to the inside of the limiting seat.

[0009] Preferably, a mounting frame is fixedly connected to the center of the outer frame, a plurality of support frames are fixedly connected to the outer ends of the mounting frame, and the outer ends of the support frames are fixedly connected to the inner walls of the outer frame.

[0010] Preferably, a screen is fixedly connected to the inner wall of the shell, a flow-aiding groove is transversely provided at the inner end of the screen, and through holes are symmetrically provided on both sides of the flow-aiding groove.

[0011] Preferably, the inner end of the flow-aiding groove is fixedly connected to a second mesh partition, the inner end of the second mesh partition is fixedly connected to a reverse osmosis membrane, and the inner end of the reverse osmosis membrane is fixedly connected to the first mesh partition.

[0012] Preferably, a plurality of groups of reinforcement seats are fixedly connected to the inner wall of the shell at equal intervals, and fixing rings are provided through both sides of the reinforcement seats.

[0013] Preferably, a circle of supporting ring sleeve is provided through the interior of the reinforcement seat, and the supporting ring sleeve passes through the interior of the fixing ring.

[0014] Preferably, an inner protective layer is fixedly connected to an inner wall inside the shell, and an outer protective layer is fixedly connected to an outer wall inside the shell.

[0015] Compared with the prior art, the beneficial effects of the utility model are: the cross-flow reverse osmosis membrane element not only realizes the flexible fixing function and the cross-flow function, but also realizes the reinforcement support function;

[0016] (1) An outer frame, a sealing gasket, a support frame, a limit seat, an auxiliary frame and a movable rod are provided, and the sealing gaskets are placed on the inner walls on both sides of the outer shell to ensure the sealing of the connection between the outer shell and the outer frame. The auxiliary frame is flipped inward, and the auxiliary frame is fixed inside the corresponding limit seat by using a plug-in structure, thereby enhancing the connectivity between the outer frame and the outer shell, optimizing the structural flexibility, and facilitating the targeted replacement of damaged parts in the later stage, thereby reducing maintenance costs, and using multiple sets of support frames to provide strong support and protection for the inner wall of the outer frame to prevent the outer frame from collapsing and reducing the sealing effect;

[0017] (2) By providing a first mesh partition, a second mesh partition, a reverse osmosis membrane, a flow-aiding groove, a through hole and a screen, water is introduced into the housing through the flow-aiding groove, and the water inlet and water output directions are opposite, forming a rotating flow in the housing, and the larger solid impurities in the water flow are separated by the screen, and then the harmful substances are effectively isolated by the reverse osmosis membrane to ensure the purity of the water. The first mesh partition and the second mesh partition cooperate with each other to enhance the filterability of the water;

[0018] (3) By providing a reinforcement seat, a support ring sleeve, an outer protective layer, a fixed ring and an inner protective layer, the support ring sleeve runs through the interior of multiple groups of reinforcement seats to provide all-round support and protection for the outer shell, enhance the firmness of the outer shell itself, effectively prevent the outer shell from being dented due to long-term use and affecting water flow, and improve the safety of the overall structure. At the same time, the inner protective layer and the outer protective layer provide strong protection for the support ring sleeve, effectively extending the protection time of the support ring sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0020] Figure 2 It is a side view structural diagram of the outer frame of the utility model;

[0021] Figure 3 For the utility model Figure 1 A schematic diagram of the enlarged structure of the local section at point A in the middle;

[0022] Figure 4 It is a schematic diagram of the side cross-sectional structure of the shell of the utility model.

[0023] In the figure: 1. outer shell; 2. outer frame; 3. mounting frame; 4. sealing gasket; 5. central water collecting pipe; 6. limit seat; 7. auxiliary frame; 8. connecting rod; 9. movable rod; 10. first mesh partition; 11. reverse osmosis membrane; 12. support frame; 13. first connecting seat; 14. second connecting seat; 15. through hole; 16. second mesh partition; 17. flow-aiding groove; 18. screen; 19. inner protective layer; 20. reinforcement seat; 21. outer protective layer; 22. fixing ring; 23. supporting ring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example 1: Please refer to Figure 1-4 A cross-flow reverse osmosis membrane element comprises a shell 1, a central water collecting pipe 5 is transversely arranged inside the shell 1, an outer frame 2 is symmetrically arranged on both sides of the outer shell 1, and a fixing component for improving the sealing effect is arranged at the connection between the outer frame 2 and the shell 1;

[0026] The fixing assembly includes a sealing gasket 4, a limiting seat 6, an auxiliary frame 7, a connecting rod 8, a movable rod 9, a supporting frame 12, a first connecting seat 13 and a second connecting seat 14. The inner wall of the outer frame 2 is fixedly connected with the sealing gasket 4. The outside of the sealing gasket 4 is fitted and connected with the inner walls on both sides of the outer shell 1. The outside of both sides of the outer shell 1 is fixedly connected with multiple groups of limiting seats 6. The outside of the outer frame 2 is fixedly connected with multiple groups of first connecting seats 13 and second connecting seats 14. The first connecting seats 13 and the second connecting seats 14 are respectively located on both sides of the limiting seat 6. The movable rod 9 is movably connected between the first connecting seat 13 and the second connecting seat 14.

[0027] The outside of the movable rod 9 is fixedly connected with a connecting rod 8, the outer end of the connecting rod 8 is fixedly connected with an auxiliary frame 7, and the auxiliary frame 7 is plugged and connected to the inside of the limit seat 6;

[0028] A mounting frame 3 is fixedly connected at the center of the outer frame 2, and multiple sets of support frames 12 are fixedly connected to the outer ends of the mounting frame 3, and the outer ends of the support frames 12 are fixedly connected to the inner walls of the outer frame 2;

[0029] Specifically, Figure 1 and Figure 2 As shown, when in use, the outer frame 2 is rotatably installed on both sides of the outer shell 1, the sealing gasket 4 is placed close to the inner walls on both sides of the outer shell 1, and the auxiliary frame 7 is flipped outward by the movable rod 9 until the auxiliary frame 7 is inserted and fixed in the corresponding limit seat 6, thereby fixing the outer frame 2 in all directions.

[0030] Embodiment 2: A screen 18 is fixedly connected to the inner wall of the housing 1, a flow-aiding groove 17 is transversely provided at the inner end of the screen 18, and through holes 15 are symmetrically provided on both sides of the flow-aiding groove 17;

[0031] The inner end of the flow-aiding groove 17 is fixedly connected to the second mesh barrier 16, the inner end of the second mesh barrier 16 is fixedly connected to the reverse osmosis membrane 11, and the inner end of the reverse osmosis membrane 11 is fixedly connected to the first mesh barrier 10;

[0032] Specifically, Figure 1 and Figure 3 As shown, when in use, water flows through the through hole 15 and the flow-aiding groove 17 into the housing 1. The water inlet and water production directions are opposite, forming a rotating flow in the housing 1. The larger solid impurities in the water flow are separated by the screen 18, and then the harmful substances are effectively isolated by the reverse osmosis membrane 11 to ensure the purity of the water. The first mesh barrier 10 and the second mesh barrier 16 cooperate with each other to enhance the filterability of the water.

[0033] Embodiment 3: A plurality of groups of reinforcement seats 20 are fixedly connected to the inner wall of the housing 1 at equal intervals, and fixed collars 22 are provided on both sides of the reinforcement seats 20;

[0034] A circle of support ring sleeve 23 is provided inside the reinforcement seat 20, and the support ring sleeve 23 passes through the interior of the fixed ring 22;

[0035] An inner protective layer 19 is fixedly connected to the inner wall of the housing 1, and an outer protective layer 21 is fixedly connected to the outer wall of the housing 1;

[0036] Specifically, Figure 1 and Figure 4 As shown, when in use, the support ring sleeve 23 passes through the interior of multiple groups of reinforcement seats 20, providing all-round support and protection for the outer shell 1, enhancing the firmness of the outer shell 1 itself, effectively preventing the outer shell 1 from being dented due to long-term use and affecting the flow of water, and improving the safety of the overall structure. At the same time, the inner protective layer 19 and the outer protective layer 21 provide strong protection for the support ring sleeve 23, effectively extending the protection time of the support ring sleeve 23.

[0037] Working principle: When the utility model is in use, the support ring sleeve 23 passes through the interior of multiple groups of reinforcement seats 20, the outer frame 2 is rotatably installed on both sides of the outer shell 1, the sealing gasket 4 is fitly placed on the inner walls on both sides of the outer shell 1, and the auxiliary frame 7 is flipped outward by the movable rod 9 until the auxiliary frame 7 is inserted and fixed in the corresponding limit seat 6. The water flows through the through hole 15 and the flow-aiding groove 17 into the outer shell 1. The water inlet and water production directions are opposite, forming a rotating flow in the outer shell 1, and the larger solid impurities in the water flow are separated by the screen 18, and then the harmful substances are effectively isolated by the reverse osmosis membrane 11 to ensure the purity of the water. The first mesh partition 10 and the second mesh partition 16 cooperate with each other to enhance the filterability of the water.

[0038] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A cross-flow reverse osmosis membrane element, comprising a housing (1), characterized in that: A central water collecting pipe (5) is disposed transversely through the interior of the outer shell (1), outer frames (2) are symmetrically disposed on both sides of the outer shell (1), and a fixing component for improving the sealing effect is disposed at the connection between the outer frame (2) and the outer shell (1); The fixing assembly comprises a sealing gasket (4), a limiting seat (6), an auxiliary frame (7), a connecting rod (8), a movable rod (9), a supporting frame (12), a first connecting seat (13) and a second connecting seat (14); the inner side wall of the outer frame (2) is fixedly connected with the sealing gasket (4); the outside of the sealing gasket (4) is fitted and connected with the inner walls of the outer shell (1) on both sides; the outside of the outer shell (1) is fixedly connected with multiple groups of limiting seats (6); the outside of the outer frame (2) is fixedly connected with multiple groups of first connecting seats (13) and second connecting seats (14); the first connecting seat (13) and the second connecting seat (14) are respectively located on both sides of the limiting seat (6); and a movable rod (9) is movably connected between the first connecting seat (13) and the second connecting seat (14).

2. A cross-flow reverse osmosis membrane element according to claim 1, characterized in that: The outside of the movable rod (9) is fixedly connected to a connecting rod (8), the outer end of the connecting rod (8) is fixedly connected to an auxiliary frame (7), and the auxiliary frame (7) is plug-connected to the inside of the limiting seat (6).

3. A cross-flow reverse osmosis membrane element according to claim 1, characterized in that: A mounting frame (3) is fixedly connected to the center of the outer frame (2), and the outer ends of the mounting frame (3) are fixedly connected to multiple groups of support frames (12), and the outer ends of the support frames (12) are fixedly connected to the inner walls of the outer frame (2).

4. A cross-flow reverse osmosis membrane element according to claim 1, characterized in that: A screen (18) is fixedly connected to the inner wall of the housing (1), a flow-aiding groove (17) is transversely provided at the inner end of the screen (18), and through holes (15) are symmetrically provided on both sides of the flow-aiding groove (17).

5. A cross-flow reverse osmosis membrane element according to claim 4, characterized in that: The inner end of the flow-aiding groove (17) is fixedly connected to a second mesh barrier (16), the inner end of the second mesh barrier (16) is fixedly connected to a reverse osmosis membrane (11), and the inner end of the reverse osmosis membrane (11) is fixedly connected to a first mesh barrier (10).

6. A cross-flow reverse osmosis membrane element according to claim 1, characterized in that: The inner wall of the outer shell (1) is fixedly connected with a plurality of groups of reinforcement seats (20) at equal intervals, and fixing rings (22) are provided through both sides of the reinforcement seats (20).

7. A cross-flow reverse osmosis membrane element according to claim 6, characterized in that: A circle of supporting ring sleeve (23) is provided inside the reinforcing seat (20), and the supporting ring sleeve (23) passes through the interior of the fixing ring (22).

8. The cross-flow reverse osmosis membrane element according to claim 1, characterized in that: An inner protective layer (19) is fixedly connected to the inner wall inside the outer shell (1), and an outer protective layer (21) is fixedly connected to the outer wall inside the outer shell (1).

Images