Nanofiltration membrane filtering device

Abstract

The utility model discloses a nanofiltration membrane filtering device and belongs to the technical field of filtering devices. The device comprises a filter box and a nanofiltration membrane, a fixing ring is arranged in the filter box, mounting grooves are formed in the two sides of the top of the fixing ring respectively, mounting blocks are arranged on the two sides of the nanofiltration membrane respectively, and the mounting blocks are arranged in the mounting grooves in a matched mode; a limiting hole is formed in one side of the mounting groove, a T-shaped groove is formed in the mounting block, the T-shaped groove corresponds to the limiting hole, a spring is arranged in the T-shaped groove, one end of the spring is connected with a T-shaped block, and one end of the T-shaped block is inserted into the limiting hole. According to the utility model, the top cover is opened, then the T-shaped block is pulled to extrude the spring, so that the T-shaped block and the spring are contracted into the T-shaped groove, one end of the T-shaped block is pulled out from the limiting hole to release the limiting of the nanofiltration membrane, and then the nanofiltration membrane can be disassembled and replaced by pulling the pull ring, so that the problems that the disassembly and replacement operation is troublesome and the cost is low are solved. Therefore, the mounting and dismounting efficiency of the filter screen is reduced, the time is not saved, and the working efficiency is not convenient to improve.

Description

Technical Field

[0001] The utility model relates to the technical field of filtering devices, in particular to a nanofiltration membrane filtering device. Background Art

[0002] Nanofiltration membranes: With pore sizes exceeding 1 nm, typically 1-2 nm, these membranes are functional semipermeable membranes that allow the permeation of solvent molecules, certain low-molecular-weight solutes, or low-valent ions. They are a unique and promising type of separation membrane, named for their ability to retain nanometer-sized particles. They are used to remove organic matter and color from surface water, reduce groundwater hardness, partially remove soluble salts, concentrate fruit juice, and separate useful substances from pharmaceuticals.

[0003] However, most nanofiltration membrane filtration devices adopt a fixed membrane component design, which is cumbersome to disassemble and replace, resulting in reduced installation and disassembly efficiency of the filter screen, which is not conducive to saving time and improving work efficiency. Therefore, a nanofiltration membrane filtration device is proposed to overcome the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a nanofiltration membrane filtering device, which opens the top cover and then pulls the T-shaped block to squeeze the spring, so that the T-shaped block and the spring shrink into the T-shaped groove, and one end of the T-shaped block is pulled out from the limiting hole to release the limit on the nanofiltration membrane. Then, the nanofiltration membrane can be removed and replaced by pulling the pull ring, which solves the problem that the disassembly and replacement operations are more troublesome, resulting in reduced installation and disassembly efficiency of the filter screen, which is not conducive to saving time and is not convenient for improving work efficiency.

[0005] The utility model is realized through the following technical solutions:

[0006] The utility model is a nanofiltration membrane filtering device, comprising a filter box and a nanofiltration membrane, a fixing ring is provided inside the filter box, mounting grooves are respectively provided on both sides of the top of the fixing ring, mounting blocks are respectively provided on both sides of the nanofiltration membrane, and the mounting blocks are fitted in the mounting grooves; a limiting hole is provided on one side of the mounting groove, a T-shaped groove is provided on the mounting block, the T-shaped groove corresponds to the limiting hole, a spring is provided inside the T-shaped groove, one end of the spring is connected to the T-shaped block, and one end of the T-shaped block is inserted into the limiting hole.

[0007] Furthermore, pull rings are provided on both sides of the top of the nanofiltration membrane.

[0008] Furthermore, a bevel ring is provided on the outer side of the top of the fixing ring.

[0009] Furthermore, a feed pipe is provided on one side of the filter box, and a discharge pipe is provided at the bottom of the filter box.

[0010] Furthermore, a top cover is provided on the top of the filter box, an external thread is provided on the top of the filter box, and an internal thread is provided on the inner side of the top cover, and the external thread and the internal thread match each other.

[0011] Furthermore, one end of the T-shaped block is configured as an inclined structure.

[0012] The utility model has the following beneficial effects:

[0013] 1. The utility model opens the top cover and then pulls the T-shaped block to squeeze the spring, so that the T-shaped block and the spring shrink into the T-shaped groove, and one end of the T-shaped block is pulled out from the limiting hole to release the limit on the nanofiltration membrane. Then, the nanofiltration membrane can be removed and replaced by pulling the pull ring, which solves the problem that the disassembly and replacement operation is more troublesome, resulting in reduced installation and disassembly efficiency of the filter screen, which is not conducive to saving time and is not convenient for improving work efficiency.

[0014] 2. The utility model can guide the raw liquid inside the filter box through the bevel ring, thereby preventing the raw liquid entering from the feed pipe from staying on the top of the fixed ring.

[0015] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the filtering device structure;

[0017] Figure 2 Schematic diagram of the internal structure of the filtration device;

[0018] Figure 3 Schematic diagram of the nanofiltration membrane structure;

[0019] Figure 4 Schematic diagram of the fixed ring structure.

[0020] In the figure: 1. Filter box; 101. Feed pipe; 102. Discharge pipe; 2. Top cover; 3. Fixing ring; 301. Mounting groove; 302. Limiting hole; 4. Bevel ring; 5. Nanofiltration membrane; 501. Mounting block; 502. T-slot; 503. T-block; 504. Spring; 505. Pull ring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-4 The utility model provides a technical solution: a nanofiltration membrane filtering device, including a filter box 1 and a nanofiltration membrane 5, a fixing ring 3 is provided inside the filter box 1, and the fixing ring 3 is a circular structure. Mounting grooves 301 are respectively provided on both sides of the top of the fixing ring 3, and mounting blocks 501 are respectively provided on both sides of the nanofiltration membrane 5, and the mounting blocks 501 are fitted in the mounting grooves 301; a limiting hole 302 is provided on one side of the mounting groove 301, and a T-shaped slot 502 is provided on the mounting block 501, and the T-shaped slot 502 corresponds to the limiting hole 302. A spring 504 is provided inside the T-shaped slot 502, and one end of the spring 504 is connected to a T-shaped block 503, and one end of the T-shaped block 503 is set as an inclined structure to facilitate squeezing the T-shaped block 503, and one end of the T-shaped block 503 is inserted into the limiting hole 302. Pull rings 505 are respectively provided on both sides of the top of the nanofiltration membrane 5, and the pull rings 505 are square structures.

[0023] By opening the top cover 2 and then pulling the T-shaped block 503 to squeeze the spring 504, the T-shaped block 503 and the spring 504 are contracted into the T-shaped groove 502, and one end of the T-shaped block 503 is pulled out from the limiting hole 302, releasing the limit on the nanofiltration membrane 5, and then the nanofiltration membrane 5 can be removed and replaced by pulling the pull ring 505, which solves the problem that the disassembly and replacement operations are more troublesome, resulting in reduced installation and disassembly efficiency of the filter screen, which is not conducive to saving time and is not convenient for improving work efficiency.

[0024] A bevel ring 4 is provided on the outside of the top of the fixing ring 3. The bevel ring 4 is a circular structure and the inner side is a bevel structure. The bevel ring 4 can guide the raw liquid inside the filter box 1, thereby preventing the raw liquid entering from the feed pipe 101 from staying on the top of the fixing ring 3.

[0025] A feed pipe 101 is provided on one side of the filter box 1, through which the raw liquid is transported to the interior of the filter box 1 for filtration treatment. A discharge pipe 102 is provided at the bottom of the filter box 1, through which the filtered raw liquid is discharged. A top cover 2 is provided on the top of the filter box 1, and a sealing gasket is provided between the filter box 1 and the top cover 2. An external thread is provided on the top of the filter box 1, and an internal thread is provided on the inner side of the top cover 2. The external thread and the internal thread cooperate with each other, and the top cover 2 can prevent pollutants in the external environment from entering the interior of the filter box 1 and causing pollution to the nanofiltration membrane 5.

[0026] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A nanofiltration membrane filtration device, comprising a filter box (1) and a nanofiltration membrane (5), characterized in that: A fixing ring (3) is provided inside the filter box (1), and mounting grooves (301) are respectively provided on both sides of the top of the fixing ring (3), and mounting blocks (501) are respectively provided on both sides of the nanofiltration membrane (5), and the mounting blocks (501) are fitted in the mounting grooves (301); A limiting hole (302) is provided on one side of the mounting groove (301), a T-shaped groove (502) is provided on the mounting block (501), the T-shaped groove (502) corresponds to the limiting hole (302), a spring (504) is provided inside the T-shaped groove (502), one end of the spring (504) is connected to a T-shaped block (503), and one end of the T-shaped block (503) is inserted into the limiting hole (302).

2. A nanofiltration membrane filtration device according to claim 1, characterized in that: Pull rings (505) are respectively provided on both sides of the top of the nanofiltration membrane (5).

3. A nanofiltration membrane filtration device according to claim 1, characterized in that: A bevel ring (4) is provided on the outer side of the top of the fixing ring (3).

4. A nanofiltration membrane filtration device according to claim 1, characterized in that: A feed pipe (101) is provided on one side of the filter box (1), and a discharge pipe (102) is provided at the bottom of the filter box (1).

5. The nanofiltration membrane filtration device according to claim 1, characterized in that: The top of the filter box (1) is provided with a top cover (2), the top of the filter box (1) is provided with an external thread, the inner side of the top cover (2) is provided with an internal thread, and the external thread and the internal thread match each other.

6. The nanofiltration membrane filtration device according to claim 1, characterized in that: One end of the T-shaped block (503) is configured as a sloped structure.

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