Membrane shell of single-soldier water-making membrane element

Abstract

The utility model discloses an individual soldier water-making membrane element shell, which comprises a cylindrical membrane shell, a membrane element is arranged in the cylindrical membrane shell, a water inlet and a water outlet are respectively arranged at two end parts of the side wall surface of the cylindrical membrane shell, two inserting grooves are symmetrically arranged on the inner side wall surface of the cylindrical membrane shell, and the two inserting grooves are communicated with the cylindrical membrane shell. The water inlet and the water outlet are located between the two inserting grooves. The utility model relates to the technical field of reverse osmosis water purification, the closed end plate and the water outlet end plate are mounted in the cylindrical membrane shell in an inserting manner, so that the mounting space is saved, the overall length size of the device is limited, and the device is convenient to mount; a multi-layer sealing structure is formed through the cooperation of the crescent stop block and the clamping groove and the cooperation of the crescent baffle and the nut, the sealing performance of the whole pressure container is further improved, and the pressure container is suitable for being used under the high-pressure condition.

Description

Technical Field

[0001] The utility model relates to the technical field of reverse osmosis water purification, in particular to a membrane shell of a single-soldier water-purifying membrane element. Background Art

[0002] The reverse osmosis membrane shell is a pressure vessel mainly used to load the reverse osmosis membrane, which is filled with the RO membrane with filtering function. Reverse osmosis, also known as reverse osmosis, is a membrane separation operation that uses pressure difference as the driving force to separate the solvent from the solution. When pressure is applied to the liquid on one side of the membrane, when the pressure exceeds its osmotic pressure, the solvent will reverse the direction of natural osmosis and permeate in the opposite direction. As a result, fresh water is obtained on the low-pressure side of the membrane. However, when the reverse osmosis membrane is working, it must be installed in a pressure vessel (i.e., the membrane shell) to withstand the external water pressure to achieve water purification.

[0003] Existing reverse osmosis membrane shells are mainly made of stainless steel and fiberglass, and are mainly suitable for industrial reverse osmosis membrane elements and household conventional-sized membrane elements. However, with the continuous development of reverse osmosis technology and the continuous expansion of its application fields, a series of individual water purification devices suitable for different scenarios have been developed. Considering the ease of use and portability, membrane elements are often small in size and cannot match existing conventional membrane shells. Therefore, there is an urgent need to develop a pressure vessel for such small-sized special-purpose membrane elements.

[0004] There may already be technical means to solve the above problems in the existing technology, but this case intends to provide an alternative or replacement technical solution. Utility Model Content

[0005] In order to solve the problems raised in the background technology, the present invention is implemented through the following technical solutions: a membrane shell for a single-soldier water membrane element, comprising a cylindrical membrane shell, a membrane element is installed inside the cylindrical membrane shell, a water inlet and a water outlet are respectively provided at both ends of the side wall of the cylindrical membrane shell, two insertion grooves are symmetrically provided on the inner wall of the cylindrical membrane shell, the water inlet and the water outlet are located between the two insertion grooves, a water outlet end plate is installed on the insertion groove close to the water inlet of the two insertion grooves, and a closed end plate is installed on the insertion groove close to the water outlet of the two insertion grooves;

[0006] The water outlet end plate and the closed end plate both include a pressure plate and two crescent baffles;

[0007] The pressure-bearing plate includes a limiting section, a first sealing section, a second sealing section and a connector, the limiting section and the insertion groove match each other, the first sealing section is arranged at one end of the limiting section, and the first sealing section matches the inner wall surface of the cylindrical membrane shell, a first sealing ring groove is provided on the first sealing section, the second sealing section is provided at one end of the first sealing section, the connector is provided at one end of the second sealing section, a second sealing ring groove is provided on the connector, the connector is inserted into the membrane element, and the first sealing ring groove, the second sealing ring groove and the end of the connector near the second sealing section are all covered with sealing rings;

[0008] The two crescent baffles are symmetrically mounted on the pressure plate, and the inner wall of the cylindrical membrane shell is provided with a slot that matches the crescent baffle, and the crescent baffle is movably inserted into the slot;

[0009] A water production channel is provided on the pressure bearing plate in the water outlet end plate.

[0010] Preferably, the outer wall surface of the cylindrical membrane shell is provided with a weight-reducing concave groove.

[0011] Preferably, the limiting section, the first sealing section, the second sealing section and the connector are an integrated structure.

[0012] Preferably, a through hole is provided on the crescent baffle, a bolt is movably passed through the through hole, and a threaded hole matching the bolt is provided on the pressure plate.

[0013] Preferably, the diameters of the limiting section, the first sealing section, the second sealing section and the connector decrease in sequence.

[0014] Preferably, a water production pipeline is installed on the pressure plate in the water outlet end plate, and the water production pipeline is coaxially installed with the water production channel.

[0015] Beneficial effects

[0016] The utility model provides a membrane shell for a single-soldier water membrane element. Compared with the existing technology, it has the following beneficial effects: the closed end plate and the water outlet end plate are installed inside the cylindrical membrane shell by insertion, which saves installation space, limits the overall length of the device, and is easy to install. Moreover, on the basis of setting a sealing ring, a multi-level sealing structure is formed through the cooperation of the crescent block and the slot and the crescent baffle and the nut, which further improves the sealing performance of the entire pressure vessel and is suitable for use under high-pressure conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall main sectional structure of a membrane shell of a single-soldier water membrane element of the utility model.

[0018] Figure 2This is a schematic diagram of the main cross-sectional structure of a cylindrical membrane shell of a single-soldier water membrane element membrane shell of the utility model.

[0019] Figure 3 This is a side structural schematic diagram of a crescent baffle of a membrane shell of a single-soldier water membrane element of the utility model.

[0020] Figure 4 This is a side structural schematic diagram of the water outlet end plate of the membrane shell of a single-soldier water membrane element of the utility model.

[0021] In the figure: 1. Cylindrical membrane shell, 2. Water inlet, 3. Water outlet, 4. Insertion groove, 5. Crescent baffle, 6. Limiting section, 7. First sealing section, 8. Second sealing section, 9. Connector, 10. First sealing ring groove, 11. Second sealing ring groove, 12. Card groove, 13. Water production channel, 14. Bevel, 15. Through hole, 16. Bolt, 17. Threaded hole, 18. Water production pipeline, 19. Sealing ring. DETAILED DESCRIPTION

[0022] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0023] Example: See Figure 1-4 A single-soldier water membrane element membrane shell comprises a cylindrical membrane shell 1, a membrane element is installed inside the cylindrical membrane shell 1, and a water inlet 2 and a water outlet 3 are respectively provided at both ends of the side wall of the cylindrical membrane shell 1;

[0024] Two insertion slots 4 are symmetrically provided on the inner wall of the cylindrical membrane shell 1. The water inlet 2 and the water outlet 3 are located between the two insertion slots 4. A water outlet end plate is installed on the insertion slot 4 close to the water inlet 2 of the two insertion slots 4, and a closed end plate is installed on the insertion slot 4 close to the water outlet 3 of the two insertion slots 4.

[0025] It should be noted that the closed end plate closes the end of the cylindrical membrane shell 1 near the water outlet 3. The water to be filtered enters the cylindrical membrane shell 1 from the water inlet 2, is filtered by the membrane element, and the filtered pure water is discharged from the water outlet end plate, while the sewage is discharged from the water outlet 3.

[0026] Specifically, the outlet end plate and the closed end plate each include a pressure plate and two crescent baffles 5;

[0027] More specifically, the pressure plate includes a limiting section 6, a first sealing section 7, a second sealing section 8 and a connector 9. The limiting section 6 matches the insertion groove 4. The first sealing section 7 is provided at one end of the limiting section 6, and the first sealing section 7 matches the inner wall of the cylindrical membrane shell 1. A first sealing ring 19 groove 10 is provided on the first sealing section 7. The second sealing section 8 is provided at one end of the first sealing section 7. The connector 9 is provided at one end of the second sealing section 8. A second sealing ring 19 groove 11 is provided on the connector 9. The connector 9 is inserted into the membrane element. The first sealing ring 19 groove 10, the second sealing ring 19 groove 11 and the end of the connector 9 near the second sealing section 8 are all provided with a sealing ring 19.

[0028] More specifically, two crescent baffles 5 are symmetrically mounted on the pressure plate, and a slot 12 matching the crescent baffle 5 is formed on the inner wall of the cylindrical membrane shell 1, and the crescent baffle 5 is movably inserted into the slot 12;

[0029] As a preferred embodiment, further, a through hole 15 is provided on the crescent baffle 5, a bolt 16 is movably passed through the through hole 15, and a threaded hole 17 matching the bolt 16 is provided on the pressure plate;

[0030] It should be noted that during use, a membrane element of appropriate size is placed horizontally into the cylindrical membrane housing 1, and then a sealing ring 19 of appropriate size is installed on the first sealing ring 19 groove 10, the second sealing ring 19 groove 11 in the outlet end plate and the closed end plate, and the end of the connector 9 near the second sealing section 8;

[0031] Then insert the closed end plate into the side of the cylindrical membrane shell 1 near the water outlet 3 until the limit section 6 and the insertion groove 4 fit together. At this time, the connector 9 extends into the membrane element. The sealing ring 19 on the second sealing ring 19 groove 11 and the sealing ring 19 on the connector 9 near the second sealing section 8 are used to seal the connector 9 and the membrane element. The sealing ring 19 on the first sealing ring 19 groove 10 is used to seal the first sealing section 7 and the cylindrical membrane shell 1. Then put the crescent baffle 5 into the card slot 12. At this time, the through hole 15 is aligned with the threaded hole 17, and the nut is installed to complete the installation of the closed end plate. Then, the water outlet end plate is installed on the side of the cylindrical membrane shell 1 near the water inlet 2 in the same way.

[0032] The closed end plate and the outlet end plate are installed inside the cylindrical membrane shell 1 by insertion, which saves installation space, limits the overall length of the device, and facilitates installation. In addition, on the basis of providing the sealing ring 19, the crescent block and the groove 12, as well as the crescent baffle 5 and the nut cooperate to form a multi-level sealing structure, further improving the sealing performance of the entire pressure vessel, and being suitable for use under high pressure conditions.

[0033] A water production channel 13 is provided on the pressure plate in the water outlet end plate, and the water production channel 13 is used to circulate pure water;

[0034] As a preferred embodiment, further, a groove 14 is provided on the outer wall of the cylindrical membrane shell 1 to reduce the weight of the cylindrical membrane shell 1;

[0035] As a preference, further, the limiting section 6, the first sealing section 7, the second sealing section 8 and the connector 9 are an integrated structure;

[0036] As a preference, further, the diameters of the limiting section 6, the first sealing section 7, the second sealing section 8 and the connector 9 decrease in sequence;

[0037] Preferably, further, a water production pipe 18 is installed on the pressure plate in the water outlet end plate. The water production pipe 18 is coaxially installed with the water production channel 13 , and the pure water flowing in the water production channel 13 is discharged from the water production pipe 18 .

[0038] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A membrane shell for a single-soldier water membrane element, comprising a cylindrical membrane shell (1), wherein a membrane element is installed inside the cylindrical membrane shell (1), and a water inlet (2) and a water outlet (3) are respectively provided at both ends of the side wall of the cylindrical membrane shell (1), characterized in that: Two insertion slots (4) are symmetrically provided on the inner wall surface of the cylindrical membrane shell (1), the water inlet (2) and the water outlet (3) are located between the two insertion slots (4), the insertion slot (4) close to the water inlet (2) of the two insertion slots (4) is installed with a water outlet end plate, and the insertion slot (4) close to the water outlet (3) of the two insertion slots (4) is installed with a closed end plate; The water outlet end plate and the closed end plate both include a pressure plate and two crescent baffles (5); The pressure plate includes a limiting section (6), a first sealing section (7), a second sealing section (8) and a connector (9), the limiting section (6) and the insertion groove (4) match each other, the first sealing section (7) is arranged at one end of the limiting section (6), and the first sealing section (7) matches the inner wall of the cylindrical membrane shell (1), the first sealing section (7) is provided with a first sealing ring (19) groove (10), the second sealing section (8) is arranged at one end of the first sealing section (7), the connector (9) is arranged at one end of the second sealing section (8), the connector (9) is provided with a second sealing ring (19) groove (11), the connector (9) is inserted into the membrane element, and the first sealing ring (19) groove (10), the second sealing ring (19) groove (11) and the end of the connector (9) close to the second sealing section (8) are all provided with a sealing ring (19); The two crescent baffles (5) are symmetrically mounted on the pressure plate, and the inner wall of the cylindrical membrane shell (1) is provided with a slot (12) that matches the crescent baffle (5), and the crescent baffle (5) is movably inserted into the slot (12); A water production channel (13) is provided on the pressure bearing plate in the water outlet end plate.

2. The membrane shell of a single-soldier water membrane element according to claim 1 is characterized in that: The outer wall surface of the cylindrical membrane shell (1) is provided with a groove (14).

3. The membrane shell of a single-soldier water membrane element according to claim 1 is characterized in that: The limiting section (6), the first sealing section (7), the second sealing section (8) and the connector (9) are an integrated structure.

4. The membrane shell of a single-soldier water membrane element according to claim 1, characterized in that: A through hole (15) is provided on the crescent baffle (5), a bolt (16) is movably passed through the through hole (15), and a threaded hole (17) matching the bolt (16) is provided on the pressure plate.

5. The membrane shell of a single-soldier water membrane element according to claim 1 is characterized in that: The diameters of the limiting section (6), the first sealing section (7), the second sealing section (8) and the connector (9) decrease in sequence.

6. The membrane shell of a single-soldier water membrane element according to claim 1, characterized in that: A water production pipeline (18) is installed on the pressure plate in the water outlet end plate, and the water production pipeline (18) is coaxially installed with the water production channel (13).

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