Ultrafiltration membrane assembly of water purification equipment

Abstract

The utility model provides an ultrafiltration membrane component of water purification equipment, which comprises a first tubular shell, a second tubular shell and a cellulose acetate membrane element, the cellulose acetate membrane element is arranged in the second tubular shell, a water outlet channel is arranged at the center of the cellulose acetate membrane element, and the water outlet channel is communicated with the first tubular shell. A water outlet channel is formed in the first tubular shell, one end of the water outlet channel extends into the first tubular shell and is provided with a one-way water outlet valve head, a water outlet connector is arranged at one end of the first tubular shell, and four one-way water inlet valve seats are arranged on the pipe wall of the second tubular shell. And the soft rubber head and the external sealing seat are arranged, so that the threaded connection pipe and the water outlet connector are located on the same side, the installation space allowance of one end of the second tubular shell can be reduced, the sealing base plate can be better aligned to the interior of equipment, better assembly is facilitated, the compact effect of the structure is guaranteed, and use is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of ultrafiltration membrane components and relates to an ultrafiltration membrane component of pure water equipment. Background Art

[0002] Ultrafiltration technology is a membrane separation technology between microfiltration and nanofiltration, with an average pore size of 3 to 100 nm, and has the functions of purifying, separating, and concentrating solutions; its interception mechanism mainly includes the screening effect and electrostatic effect of the membrane, and the filtration medium is an ultrafiltration membrane. Driven by the pressure difference on both sides, only low molecular weight solutes and water can pass through the ultrafiltration membrane, thereby achieving the purpose of purification, separation, and concentration; ultrafiltration membrane equipment refers to equipment that uses ultrafiltration technology to purify water. Ultrafiltration membrane assemblies are usually used in pure water equipment. Patent No. CN202120260877.X discloses an ultrafiltration membrane assembly. The utility model simplifies the structure and assembly steps, thereby reducing labor costs and saving time and effort, while improving the sealing effect and effectively preventing damage to the membrane filaments during assembly; in addition, the utility model also increases the effective working ratio of the membrane surface, making aeration scrubbing more sufficient, and the anti-pollution performance of the membrane is further improved.

[0003] The disadvantage of the above-mentioned ultrafiltration membrane assembly is that the water inlet and the water outlet are respectively located at the two ends of the shell, which results in a large margin space being required at the connection parts between the pure water equipment and the two ends of the shell during installation, resulting in the overall structure being bulky and not compact enough. For this reason, we designed an ultrafiltration membrane assembly for pure water equipment. Summary of the invention

[0004] The purpose of the utility model is to provide an ultrafiltration membrane component of a pure water device to solve the problems raised in the above background technology.

[0005] The purpose of the utility model can be achieved through the following technical solutions: an ultrafiltration membrane assembly of a pure water device, comprising a first tubular shell, a second tubular shell and a cellulose acetate membrane element, the cellulose acetate membrane element is arranged inside the second tubular shell, a water outlet channel is arranged at the center of the cellulose acetate membrane element, one end of the water outlet channel extends to the inside of the first tubular shell and is provided with a one-way water outlet valve head, one end of the first tubular shell is provided with a water outlet joint, four one-way water inlet valve seats are arranged on the tube wall of the second tubular shell, the four one-way water inlet valve seats are distributed in an annular shape and one end of the one-way water inlet valve seat is provided with a hollow metal tube, one end of the four hollow metal tubes are connected to a water inlet end head, one end of the water inlet end head is installed with a soft rubber head, one end of the soft rubber head is provided with an external sealing seat, and one end of the external sealing seat is provided with a threaded pipe.

[0006] In the above-mentioned ultrafiltration membrane assembly of the pure water equipment, a sealing base plate is provided at one end of the second tubular shell, and a conical sealing platform connected to one end of the second tubular shell is provided at the center of the sealing base plate.

[0007] In the above-mentioned ultrafiltration membrane assembly of the pure water equipment, a groove ring is formed between the conical sealing platform and the sealing base plate.

[0008] In the above-mentioned ultrafiltration membrane assembly of the pure water equipment, a rotating connection seat is provided at one end of the water outlet joint, a quick connection joint is provided at one end of the rotating connection seat, and a sealing inner gasket is installed inside the quick connection joint.

[0009] In the above-mentioned ultrafiltration membrane assembly of the pure water equipment, an asymmetric nano-membrane group and a composite nano-filtration membrane group are installed inside the first tubular shell.

[0010] In the above-mentioned ultrafiltration membrane assembly of the pure water equipment, the first tubular shell and the second tubular shell are an integrated structure.

[0011] Compared with the prior art, the advantages of the ultrafiltration membrane assembly of a pure water equipment of the utility model are as follows: by setting a one-way water inlet valve seat to connect the hollow metal tube and the water inlet end, and setting a soft rubber head and an external sealing seat, the threaded pipe and the water outlet joint are located on the same side, which can reduce the installation space margin at one end of the second tubular shell, so that the sealing base plate can be better aligned with the inside of the equipment, which is convenient for better assembly, ensuring the compact effect of the structure and easy to use. By setting an asymmetric nanomembrane group, a composite nanofiltration membrane group, a rotating connecting seat, a quick connecting joint and a sealing inner pad, the asymmetric nanomembrane group and the composite nanofiltration membrane group further ensure the water quality filtration accuracy. The design of the rotating connecting seat, the quick connecting joint and the sealing inner pad facilitates the quick connection of the water outlet joint to the water pipe, ensuring the convenience of connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The utility model is a three-dimensional structural schematic diagram of an ultrafiltration membrane component of a pure water device.

[0013] Figure 2 The utility model is a schematic diagram of the internal structure of a second tubular shell of an ultrafiltration membrane assembly of a pure water device.

[0014] Figure 3 The utility model is a three-dimensional structural schematic diagram of a sealing base plate of an ultrafiltration membrane assembly of a pure water device.

[0015] In the figure, 1. first tubular shell; 2. second tubular shell; 3. sealing base plate; 4. one-way water inlet valve seat; 5. hollow metal tube; 6. water inlet terminal; 7. soft rubber head; 8. external sealing seat; 9. threaded connecting pipe; 10. cellulose acetate membrane element; 11. water outlet channel; 12. one-way water outlet valve head; 13. asymmetric nano-membrane group; 14. composite nanofiltration membrane group; 15. water outlet joint; 16. rotating connection seat; 17. quick connection joint; 18. sealing inner gasket; 19. conical sealing platform; 20. groove ring. DETAILED DESCRIPTION

[0016] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0017] like Figure 1 , Figure 2 and Figure 3 As shown, the utility model is an ultrafiltration membrane component of a pure water device;

[0018] Embodiment 1: It comprises a first tubular shell 1, a second tubular shell 2 and a cellulose acetate membrane element 10. The first tubular shell 1 and the second tubular shell 2 are an integrated structure. The cellulose acetate membrane element 10 is arranged inside the second tubular shell 2. A water outlet channel 11 is arranged at the center of the cellulose acetate membrane element 10. One end of the water outlet channel 11 extends to the inside of the first tubular shell 1 and is provided with a one-way water outlet valve head 12. One end of the first tubular shell 1 is provided with a water outlet joint 15. Four one-way water inlet valve seats 4 are arranged on the wall of the second tubular shell 2. The four one-way water inlet valve seats 4 are distributed in an annular shape and one end of the one-way water inlet valve seats 4 is provided with a hollow metal tube 5. One end of the four hollow metal tubes 5 are connected to a water inlet terminal 6. One end of the water inlet terminal 6 is installed with a soft rubber head 7. One end of the soft rubber head 7 is provided with an external sealing seat 8. One end of the external sealing seat 8 is provided with a threaded pipe 9.

[0019] In this embodiment, in order to block one end of the second tubular housing 2 and ensure good disassembly and sealing effects, a sealing base plate 3 is provided at one end of the second tubular housing 2, and a conical sealing platform 19 connected to one end of the second tubular housing 2 is provided at the center of the sealing base plate 3. A groove ring 20 is formed between the conical sealing platform 19 and the sealing base plate 3.

[0020] In this embodiment, in order to facilitate the quick connection of the water outlet connector 15 to the water pipe, a rotating connection seat 16 is provided at one end of the water outlet connector 15, and a quick connection connector 17 is provided at one end of the rotating connection seat 16. A sealing inner gasket 18 is installed inside the quick connection connector 17.

[0021] In this embodiment, in order to further ensure the water filtration accuracy, an asymmetric nano-membrane group 13 and a composite nanofiltration membrane group 14 are installed inside the first tubular shell 1 .

[0022] Working principle: The threaded pipe 9 and the quick-connect joint 17 are respectively connected to the water inlet pipe and the water outlet pipe of the pure water equipment. The water enters the interior of the water inlet terminal 6, and enters the cellulose acetate membrane element 10 of the second tubular shell 2 through four hollow metal tubes 5 to perform ultrafiltration. The water is filtered by the cellulose acetate membrane element 10 and enters the interior of the first tubular shell 1 through the water outlet channel 11. The asymmetric nano-membrane group 13 and the composite nanofiltration membrane group 14 perform nano-level filtration on the water, and the water is discharged through the water outlet pipe connected by the quick-connect joint 17. The utility model arranges the threaded pipe 9 and the water outlet joint 15 on the same side, which can reduce the installation space margin at one end of the second tubular shell 2, so that the sealing base plate 3 can be better aligned with the interior of the equipment, which is convenient for better assembly, ensures the compact effect of the structure, and is easy to use.

[0023] In the present invention, the asymmetric nano-membrane group 13 is an asymmetric nanofiltration membrane, which has a double-layer structure of a dense desalination layer on the top and a porous support layer on the bottom, and a preparation feature that the dense layer and the support layer are formed simultaneously during the membrane preparation process.

[0024] The composite nanofiltration membrane group 14 is a composite nanofiltration membrane. Since the composite membrane is made by separately manufacturing the porous support layer and the surface dense layer of the membrane, and then completing it by lamination or cross-linking, the thickness of the surface dense desalination layer can be greatly reduced.

[0025] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. The specific embodiments described in this article are only used to illustrate the spirit of the utility model. The technicians in the technical field of the utility model can make various modifications or supplements to the specific embodiments described or replace them in a similar way, but they will not deviate from the spirit of the utility model or exceed the scope defined by the attached claims.

Claims

1. An ultrafiltration membrane assembly of a pure water device, comprising a first tubular housing (1), a second tubular housing (2) and a cellulose acetate membrane element (10), characterized in that: The cellulose acetate membrane element (10) is arranged inside the second tubular shell (2); a water outlet channel (11) is arranged at the center of the cellulose acetate membrane element (10); one end of the water outlet channel (11) extends to the inside of the first tubular shell (1) and is provided with a one-way water outlet valve head (12); one end of the first tubular shell (1) is provided with a water outlet joint (15); four one-way water inlet valve seats (4) are arranged on the tube wall of the second tubular shell (2); the four one-way water inlet valve seats (4) are distributed in an annular shape and one end of the one-way water inlet valve seat (4) is provided with a hollow metal tube (5); one end of the four hollow metal tubes (5) are connected to a water inlet end head (6); one end of the water inlet end head (6) is installed with a soft rubber head (7); one end of the soft rubber head (7) is provided with an external sealing seat (8); one end of the external sealing seat (8) is provided with a threaded pipe (9).

2. The ultrafiltration membrane assembly of a pure water device according to claim 1, characterized in that: A sealing base plate (3) is provided at one end of the second tubular shell (2), and a conical sealing platform (19) connected to one end of the second tubular shell (2) is provided at the center of the sealing base plate (3).

3. The ultrafiltration membrane assembly of a pure water device according to claim 2, characterized in that: A groove ring (20) is formed between the conical sealing platform (19) and the sealing base plate (3).

4. The ultrafiltration membrane assembly of a pure water device according to claim 1, characterized in that: A rotating connection seat (16) is provided at one end of the water outlet joint (15), a quick connection joint (17) is provided at one end of the rotating connection seat (16), and a sealing inner gasket (18) is installed inside the quick connection joint (17).

5. The ultrafiltration membrane assembly of a pure water device according to claim 1, characterized in that: An asymmetric nano-membrane group (13) and a composite nano-filtration membrane group (14) are installed inside the first tubular housing (1).

6. The ultrafiltration membrane assembly of a pure water device according to claim 1, characterized in that: The first tubular shell (1) and the second tubular shell (2) are an integrated structure.

Images