Ultrafiltration reverse osmosis membrane group structure

Abstract

The utility model discloses an ultrafiltration reverse osmosis membrane group structure, which belongs to the technical field of water treatment and comprises a cylinder, an end cover and a filter component, the filter component comprises PP cotton, an ultrafiltration membrane and a reverse osmosis membrane, two ends of the PP cotton, the ultrafiltration membrane and the reverse osmosis membrane are clamped in annular grooves, the PP cotton, the ultrafiltration membrane and the reverse osmosis membrane are sequentially arranged from inside to outside, and the end cover is arranged on the cylinder. Locking grooves are formed in the two sides of the end cover, grooves are formed in the two sides of the through opening, springs are fixedly connected to the inner walls of the grooves, and locking blocks are fixedly connected to one ends of the springs; by arranging the filter assembly, raw water is sequentially filtered for multiple times through the PP cotton, the ultrafiltration membrane and the reverse osmosis membrane, and the PP cotton and the ultrafiltration membrane can filter out large-particle impurities in water before the water enters the reverse osmosis membrane to be filtered, so that the impurities attached to the surface of the reverse osmosis membrane are reduced, the replacement period of the reverse osmosis membrane can be prolonged, and the replacement frequency of the reverse osmosis membrane can be reduced; therefore, the replacement cost can be reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of water treatment, and in particular relates to an ultrafiltration reverse osmosis membrane group structure. Background Art

[0002] Reverse osmosis membrane is an artificial semipermeable membrane with certain characteristics made by simulating biological semipermeable membrane. It is the core component of reverse osmosis technology. The principle of reverse osmosis technology is to separate these substances and water under the action of higher osmotic pressure than the solution, based on the fact that other substances cannot pass through the semipermeable membrane. The pore size of the reverse osmosis membrane is very small, so it can effectively remove dissolved salts, colloids, microorganisms, organic matter, etc. in water. The system has the advantages of good water quality, low energy consumption, no pollution, simple process and easy operation.

[0003] In the prior art, the reverse osmosis membrane group mainly uses a reverse osmosis membrane as a filter element. Since the filtration accuracy of the reverse osmosis membrane is very high and can filter out a large amount of impurities in the water, a large amount of impurities will adhere to the surface of the reverse osmosis membrane after a period of use. The reverse osmosis membrane needs to be replaced regularly. However, the reverse osmosis membrane is relatively expensive, which makes the replacement cost relatively high. Utility Model Content

[0004] The purpose of the utility model is to provide an ultrafiltration reverse osmosis membrane group structure to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an ultrafiltration reverse osmosis membrane group structure, comprising a cylinder, an end cover and a filter assembly, one end of the cylinder is provided with a through port, the end cover is installed in the through port, the center of the end cover is provided with a water inlet, the filter assembly is arranged in the cylinder, a fixing frame is fixedly connected to the cylinder, three annular grooves are provided on the side where the fixing frame and the end cover are close to each other, the filter assembly comprises PP cotton, an ultrafiltration membrane and a reverse osmosis membrane, both ends of the PP cotton, the ultrafiltration membrane and the reverse osmosis membrane are clamped in the annular grooves, and the PP cotton, the ultrafiltration membrane and the reverse osmosis membrane are arranged in sequence from the inside to the outside, and a water outlet is provided at one end of the cylinder away from the end cover;

[0006] Locking grooves are provided on both sides of the end cover, and grooves are provided on both sides of the through opening. A spring is fixedly connected to the inner wall of the groove, one end of the spring is fixedly connected to a locking block, an inclined guide hole is provided inside the locking block, a guide rod is slidably connected inside the guide hole, connecting rods are fixedly connected to both ends of the guide rod, and a movable block is fixedly connected to one end of the connecting rod.

[0007] As a preferred embodiment, the water inlet and the water outlet are both provided with connecting threads inside.

[0008] As a preferred implementation, an end of the locking block away from the spring is provided with an inclined surface, and the inclined surface faces the opening direction of the through hole.

[0009] As a preferred implementation, a limiting groove is provided on the inner wall of the groove, a limiting block is fixedly connected to the side wall of the movable block, and the limiting block slides in the limiting groove.

[0010] As a preferred implementation, a sealing ring is fixedly connected to the inner wall of the through opening, and the sealing ring is a rubber ring.

[0011] As a preferred implementation, a concentrated water pipe is fixedly connected to the center of the fixing frame, and the outlet end of the concentrated water pipe extends to the outside of the cylinder.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The ultrafiltration reverse osmosis membrane group structure is provided with a filtering assembly. Raw water enters the cylinder from the water inlet and is filtered multiple times by the PP cotton, the ultrafiltration membrane and the reverse osmosis membrane in sequence. Before the water enters the reverse osmosis membrane for filtration, the PP cotton and the ultrafiltration membrane can filter out larger particles of impurities in the water, thereby reducing impurities attached to the surface of the reverse osmosis membrane, extending the replacement cycle of the reverse osmosis membrane, reducing the replacement frequency of the reverse osmosis membrane, and thus reducing the replacement cost.

[0014] The ultrafiltration reverse osmosis membrane group structure cooperates with the locking groove, spring, locking block, guide hole, guide rod, connecting rod and movable block. When maintaining the filter assembly, it is only necessary to press the movable block so that the connecting rod drives the guide rod to slide in the guide hole, and the locking block is moved out of the locking groove under the action of the guide hole, so that the end cover can be opened, which is convenient for maintenance of the filter assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the fixing frame of the utility model;

[0018] Figure 4 For this utility model Figure 2 A magnified view of the structure in the middle.

[0019] In the figure: 1. cylinder; 2. end cover; 3. filter assembly; 31. PP cotton; 32. ultrafiltration membrane; 33. reverse osmosis membrane; 4. through port; 5. water inlet; 6. fixing frame; 7. annular groove; 8. water outlet; 9. locking groove; 10. locking block; 11. spring; 12. locking block; 13. guide hole; 14. guide rod; 15. connecting rod; 16. movable block; 17. connecting thread; 18. limit groove; 19. sealing ring; 20. concentrated water pipe. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the embodiments.

[0021] The following examples are used to illustrate the present invention, but cannot be used to limit the scope of protection of the present invention. The conditions in the examples can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0022] See also Figure 1-4 The utility model provides an ultrafiltration reverse osmosis membrane group structure, including a cylinder 1, an end cover 2 and a filter assembly 3, one end of the cylinder 1 is provided with a through port 4, the end cover 2 is installed in the through port 4, the center of the end cover 2 is provided with a water inlet 5, the filter assembly 3 is arranged in the cylinder 1, a fixing frame 6 is fixedly connected in the cylinder 1, and three annular grooves 7 are opened on the side where the fixing frame 6 and the end cover 2 are close to each other, the filter assembly 3 includes PP cotton 31, an ultrafiltration membrane 32 and a reverse osmosis membrane 33, both ends of the PP cotton 31, the ultrafiltration membrane 32 and the reverse osmosis membrane 33 are clamped in the annular groove 7, and the PP cotton 31, the ultrafiltration membrane 32 and the reverse osmosis membrane 33 are clamped in the annular groove 7. The filter membrane 32 and the reverse osmosis membrane 33 are arranged in sequence from the inside to the outside. A water outlet 8 is provided at one end of the cylinder 1 away from the end cover 2. By setting the filter component 3, raw water enters the cylinder 1 from the water inlet 5, and is filtered multiple times through the PP cotton 31, the ultrafiltration membrane 32 and the reverse osmosis membrane 33 in sequence. Before the water enters the reverse osmosis membrane 33 for filtration, the PP cotton 31 and the ultrafiltration membrane 32 can filter out larger particles of impurities in the water, reduce impurities attached to the surface of the reverse osmosis membrane 33, extend the replacement cycle of the reverse osmosis membrane 33, reduce the replacement frequency of the reverse osmosis membrane 33, and thus reduce the replacement cost.

[0023] Furthermore, the water inlet 5 and the water outlet 8 are both provided with connecting threads 17 , and the cylinder 1 can be connected to the water pipeline through the connecting threads 17 .

[0024] Furthermore, a concentrated water pipe 20 is fixedly connected to the center of the fixing frame 6 , and the outlet end of the concentrated water pipe 20 extends to the outside of the cylinder 1 . The concentrated water produced by filtration can be discharged by setting the concentrated water pipe 20 .

[0025] Reference Figure 2 and Figure 3, locking grooves 9 are provided on both sides of the end cover 2, and grooves 10 are provided on both sides of the through hole 4. The inner wall of the groove 10 is fixedly connected with a spring 11, and one end of the spring 11 is fixedly connected with a locking block 12. The locking block 12 is provided with an inclined surface at one end away from the spring 11, and the inclined surface faces the opening direction of the through hole 4. An inclined guide hole 13 is provided inside the locking block 12, and a guide rod 14 is slidably connected inside the guide hole 13. Connecting rods 15 are fixedly connected at both ends of the guide rod 14, and a movable block 16 is fixedly connected at one end of the connecting rod 15. Through the cooperation of the locking groove 9, the spring 11, the locking block 12, the guide hole 13, the guide rod 14, the connecting rod 15 and the movable block 16, when maintaining the filter assembly 3, it is only necessary to press the movable block 16 to make the connecting rod 15 drive the guide rod 14 to slide in the guide hole 13, and the locking block 12 is moved out of the locking groove 9 under the action of the guide hole 13, so that the end cover 2 can be opened, which is convenient for the maintenance of the filter assembly 3.

[0026] Furthermore, a limiting groove 18 is provided on the inner wall of the groove 10, and the side wall of the movable block 16 is fixedly connected to the limiting block, which slides in the limiting groove 18. By setting the limiting groove 18, the movable block 16 can be limited to prevent the movable block 16 from popping out of the groove 10.

[0027] Furthermore, a sealing ring 19 is fixedly connected to the inner wall of the through opening 4 , and the sealing ring 19 is a rubber ring. By providing the sealing ring 19 , the sealing effect of the end cover 2 can be improved.

[0028] The working principle and use process of the utility model are as follows: first, raw water enters the cylinder 1 from the water inlet 5, and is filtered multiple times through the PP cotton 31, the ultrafiltration membrane 32 and the reverse osmosis membrane 33 in sequence, and the filtered water is discharged from the water outlet 8. Before the water enters the reverse osmosis membrane 33 for filtration, the PP cotton 31 and the ultrafiltration membrane 32 can filter out larger particles of impurities in the water, thereby reducing impurities attached to the surface of the reverse osmosis membrane 33, extending the replacement cycle of the reverse osmosis membrane 33, and reducing the replacement frequency of the reverse osmosis membrane 33, thereby reducing the replacement cost; through the cooperation of the locking groove 9, the spring 11, the locking block 12, the guide hole 13, the guide rod 14, the connecting rod 15 and the movable block 16, when maintaining the filter assembly 3, it is only necessary to press the movable block 16 so that the connecting rod 15 drives the guide rod 14 to slide in the guide hole 13, and the locking block 12 is moved out of the locking groove 9 under the action of the guide hole 13, and the end cover 2 can be opened to facilitate the maintenance of the filter assembly 3.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An ultrafiltration reverse osmosis membrane group structure, comprising a cylinder (1), an end cover (2) and a filter assembly (3), characterized in that: One end of the cylinder (1) is provided with a through opening (4), the end cover (2) is installed in the through opening (4), the center of the end cover (2) is provided with a water inlet (5), the filter assembly (3) is arranged in the cylinder (1), a fixing frame (6) is fixedly connected in the cylinder (1), three annular grooves (7) are provided on the side where the fixing frame (6) and the end cover (2) are close to each other, the filter assembly (3) comprises PP cotton (31), an ultrafiltration membrane (32) and a reverse osmosis membrane (33), both ends of the PP cotton (31), the ultrafiltration membrane (32) and the reverse osmosis membrane (33) are clamped in the annular grooves (7), and the PP cotton (31), the ultrafiltration membrane (32) and the reverse osmosis membrane (33) are arranged in sequence from the inside to the outside, and a water outlet (8) is provided at the end of the cylinder (1) away from the end cover (2); The end cover (2) is provided with locking grooves (9) on both sides, the through opening (4) is provided with grooves (10), the inner wall of the groove (10) is fixedly connected with a spring (11), one end of the spring (11) is fixedly connected with a locking block (12), the locking block (12) is provided with an inclined guide hole (13) inside, the guide hole (13) is slidably connected with a guide rod (14), both ends of the guide rod (14) are fixedly connected with connecting rods (15), and one end of the connecting rod (15) is fixedly connected with a movable block (16).

2. The ultrafiltration reverse osmosis membrane group structure according to claim 1, characterized in that: The water inlet (5) and the water outlet (8) are both provided with connecting threads (17) inside.

3. The ultrafiltration reverse osmosis membrane group structure according to claim 1, characterized in that: An end of the locking block (12) away from the spring (11) is provided with an inclined surface, and the inclined surface faces the opening direction of the through hole (4).

4. The ultrafiltration reverse osmosis membrane group structure according to claim 1, characterized in that: The inner wall of the groove (10) is provided with a limiting groove (18), the side wall of the movable block (16) is fixedly connected to the limiting block, and the limiting block slides in the limiting groove (18).

5. The ultrafiltration reverse osmosis membrane group structure according to claim 1, characterized in that: A sealing ring (19) is fixedly connected to the inner wall of the through opening (4), and the sealing ring (19) is a rubber ring.

6. The ultrafiltration reverse osmosis membrane group structure according to claim 1, characterized in that: A concentrated water pipe (20) is fixedly connected to the center of the fixed frame (6), and the outlet end of the concentrated water pipe (20) extends to the outside of the cylinder (1).

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