Nanofiltration membrane assembly

Abstract

The utility model relates to the technical field of environmental protection equipment, and discloses a nanofiltration membrane component which comprises a membrane shell, the outer wall of the membrane shell is fixedly connected with a mounting frame, the side surface of the mounting frame is provided with a sliding rail, the inside of the sliding rail is connected with a clamping block in a sliding manner, the side surface of the clamping block is fixedly connected with a pulling strip, the inside of the sliding rail is provided with a spring, and the spring is fixedly connected with the sliding rail. An end cover is mounted at the top of the membrane shell, a mounting insertion block is fixedly connected to the bottom of the end cover, and a tubular nanofiltration core rod is mounted in the membrane shell. The end cover moves downwards, the installation insertion block is inserted into the installation frame, the installation insertion block moves downwards, the clamping block is extruded towards the outer side, the spring is compressed, the installation insertion block continues to move downwards, the clamping block bounces into the groove in the side face of the installation insertion block, the installation insertion block is clamped, the end cover is fixed, only the installation insertion block needs to be inserted in the replacement process, use is convenient, and operation is easy.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental protection equipment, in particular to a nanofiltration membrane component. Background Art

[0002] Nanofiltration membranes have pore sizes exceeding 1 nm, typically 1-2 nm. They 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, remove hardness from groundwater, partially remove soluble salts, concentrate fruit juice, and separate useful substances from pharmaceuticals.

[0003] For example, Chinese patent publication number CN213314348U discloses a conveniently replaceable tubular nanofiltration membrane assembly comprising a fixed outer cylinder and a tubular nanofiltration core rod. The fixed outer cylinder comprises an end cap and a membrane housing, an upper buckle bowl being located within the end cap, and a lower buckle bowl being located within the membrane housing. The tubular nanofiltration core rod comprises a nanofiltration tube and a bundled tube barrel, wherein the inner and outer sides of the bundled tube barrel are capable of fluid exchange. The nanofiltration tube is fixed within the bundled tube barrel, and the upper and lower ends of the bundled tube barrel are connected to the upper and lower buckle bowls, respectively. This utility model solves the problem of excessive replacement costs for tubular nanofiltration membrane assemblies in the prior art.

[0004] After using the tubular nanofiltration membrane assembly, it was found that although the tubular nanofiltration membrane assembly solved the problem of high replacement cost of tubular nanofiltration membrane assemblies in the prior art, when in use, it was necessary to screw the tubular nanofiltration core rod onto the lower buckle bowl and then screw on the upper buckle bowl, which was inconvenient to use, time-consuming and labor-intensive to operate, and had limited practicality. Utility Model Content

[0005] The purpose of the utility model is to provide a nanofiltration membrane component to solve the problem of time-consuming and labor-intensive operation.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a nanofiltration membrane assembly, comprising a membrane shell, the outer wall of the membrane shell is fixedly connected to a mounting frame, a slide rail is provided on the side of the mounting frame, a card block is slidably connected to the inside of the slide rail, a pull bar is fixedly connected to the side of the card block, a spring is installed inside the slide rail, an end cover is installed on the top of the membrane shell, a mounting plug is fixedly connected to the bottom of the end cover, and a tubular nanofiltration core rod is installed inside the membrane shell.

[0007] Preferably, the top of the end cover is fixedly connected with an upper connecting port, the bottom of the membrane shell is fixedly connected with a lower connecting port, and the right side of the membrane shell is fixedly connected with a filtrate outlet.

[0008] Preferably, a first rubber ring is provided on the top and bottom of the tubular nanofiltration core rod, and a second rubber ring is provided on the outside of the tubular nanofiltration core rod.

[0009] Preferably, the first rubber ring on the upper side matches the interior of the end cover, the second rubber ring on the upper side matches the interior of the end cover, the first rubber ring on the lower side matches the interior of the membrane shell, and the second rubber ring on the lower side matches the interior of the membrane shell.

[0010] Preferably, the mounting block matches the interior of the mounting bracket.

[0011] Preferably, the clamping block matches the side groove of the installation plug-in block.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The utility model moves the end cover downward and the installation plug is inserted into the installation frame. The installation plug moves downward and presses the clamping block outward. The spring is compressed and the installation plug continues to move downward. The clamping block pops into the groove on the side of the installation plug, clamps the installation plug, and fixes the end cover. When replacing, only the installation plug needs to be inserted. It is easy to use and simple to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the side sectional structure of the utility model;

[0016] Figure 3 for Figure 2 A schematic diagram of the partially enlarged structure at center A;

[0017] Figure 4 for Figure 2 Schematic diagram of the locally enlarged structure at point B in the middle.

[0018] In the figure: 1. membrane housing; 101. lower connection port; 102. filtrate outlet; 2. end cap; 201. upper connection port; 3. tubular nanofiltration element rod; 301. first rubber ring; 302. second rubber ring; 4. mounting bracket; 401. clamping block; 402. pull bar; 403. spring; 404. slide rail; 405. mounting plug. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] See also Figure 1-4The utility model provides a technical solution: a nanofiltration membrane assembly, including a membrane shell 1, the membrane shell 1 is cylindrical, and the tubular nanofiltration core rod 3 can be accommodated inside the membrane shell 1, the outer wall of the membrane shell 1 is fixedly connected to a mounting bracket 4, the mounting bracket 4 runs through from top to bottom, so that the mounting plug 405 can be inserted without offset, a slide rail 404 is provided on the side of the mounting bracket 4, and a card block 401 is slidably connected to the inside of the slide rail 404, and the card block 401 slides inside the slide rail 404. A pull bar 402 is fixedly connected to the side of the card block 401, and the card block 401 will not be separated from the inside of the slide rail 404 when sliding inside the slide rail 404, and the pull bar 402 facilitates pulling the card block 4 01. A spring 403 is installed inside the slide rail 404. The spring 403 provides elastic force. Pull the pull bar 402, the block 401 moves outward, and the spring 403 is compressed. Release the pull bar 402, the spring 403 is released, and the block 401 moves inward. There are two springs 403 on each side and on both sides of the pull bar 402. One end of the spring 403 is connected to the slide rail 404, and the other end of the spring 403 is connected to the block 401. An end cover 2 is installed on the top of the membrane shell 1. The interior of the end cover 2 cooperates with the tubular nanofiltration core rod 3. The tubular nanofiltration core rod 3 is fixed inside the end cover 2 and the membrane shell 1. The lower part of the end cover 2 and the upper part of the membrane shell 1 The bottom of the end cover 2 is fixedly connected with a mounting plug 405, and the mounting plug 405 is inserted into the mounting frame 4 for installation. The side of the block 401 is an inclined surface, and the bottom side of the mounting plug 405 is an inclined surface. The mounting plug 405 moves downward, and the block 401 is squeezed outward. The spring 403 is compressed, and the mounting plug 405 continues to move downward. The block 401 pops into the groove on the side of the mounting plug 405, and the mounting plug 405 is stuck to fix the end cover 2. A tubular nanofiltration core rod 3 is installed inside the membrane shell 1. The tubular nanofiltration core rod 3 is used to filter sewage and needs to be replaced regularly. When in use, sewage is removed from the membrane shell 1. The fluid flows in through the end cap 2, is filtered through the tubular nanofiltration core rod 3, and flows out from the bottom of the membrane shell 1. During installation, the tubular nanofiltration core rod 3 is installed inside the membrane shell 1, the end cap 2 is moved down, and the installation plug 405 is inserted into the mounting frame 4. The side of the block 401 is an inclined surface, and the bottom side of the installation plug 405 is an inclined surface. The installation plug 405 is moved down, squeezing the block 401 outward, and the spring 403 is compressed. The installation plug 405 continues to move down, and the block 401 pops into the groove on the side of the installation plug 405, locking the installation plug 405 and fixing the end cap 2. When disassembling, pull the bar 402, the block 401 is separated from the installation plug 405, and the end cap 2 can be removed.

[0021] Among them, the top of the end cover 2 is fixedly connected with an upper connecting port 201, the upper connecting port 201 is connected to the water inlet pipe, the sewage enters from the upper connecting port 201 and enters the inside of the membrane shell 1, the bottom of the membrane shell 1 is fixedly connected with a lower connecting port 101, the lower connecting port 101 is connected to the water outlet pipe, the sewage flows out from the lower connecting port 101, and the right side of the membrane shell 1 is fixedly connected with a filtrate outlet 102, the filtrate outlet 102 is used to output the filtrate to the lower-level filtering device.

[0022] Among them, a first rubber ring 301 is provided at the top and bottom of the tubular nanofiltration core rod 3, and a second rubber ring 302 is provided on the outside of the tubular nanofiltration core rod 3. The first rubber ring 301 and the second rubber ring 302 play a buffering role. During installation, the first rubber ring 301 and the second rubber ring 302 are squeezed to fix the tubular nanofiltration core rod 3 and prevent it from shaking inside the membrane shell 1. The first rubber ring 301 and the second rubber ring 302 also play a water-isolating role to prevent sewage from flowing directly without passing through the tubular nanofiltration core rod 3.

[0023] Among them, the upper first rubber ring 301 matches the interior of the end cover 2, the upper second rubber ring 302 matches the interior of the end cover 2, the lower first rubber ring 301 matches the interior of the membrane shell 1, and the lower second rubber ring 302 matches the interior of the membrane shell 1. The first rubber ring 301 and the second rubber ring 302 both play a role of buffering and water isolation.

[0024] The mounting block 405 matches the interior of the mounting frame 4 , and the mounting frame 4 penetrates from top to bottom, so that the mounting block 405 can be inserted without being offset.

[0025] Among them, the card block 401 matches the side groove of the installation plug block 405. The installation plug block 405 moves downward, squeezing the card block 401 outward, the spring 403 is compressed, and the installation plug block 405 continues to move downward. The card block 401 bounces into the side groove of the installation plug block 405, clamping the installation plug block 405 and fixing the end cover 2.

[0026] Working principle: When in use, sewage flows in from the end cover 2, is filtered through the tubular nanofiltration core rod 3, and flows out from the bottom of the membrane shell 1. During installation, the tubular nanofiltration core rod 3 is installed inside the membrane shell 1, the end cover 2 is moved down, and the installation plug 405 is inserted into the mounting frame 4. The side of the block 401 is an inclined surface, and the bottom side of the installation plug 405 is an inclined surface. The installation plug 405 is moved down, and the block 401 is squeezed outward. The spring 403 is compressed, and the installation plug 405 continues to move down. The block 401 bounces into the groove on the side of the installation plug 405, and the installation plug 405 is stuck, fixing the end cover 2. When disassembling, pull the bar 402, the block 401 is separated from the installation plug 405, and the end cover 2 can be removed.

[0027] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes and modifications may be made to these embodiments without departing from the principles of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A nanofiltration membrane assembly, comprising a membrane housing (1), characterized in that: The outer wall of the membrane shell (1) is fixedly connected to a mounting frame (4), a slide rail (404) is provided on the side of the mounting frame (4), a clamping block (401) is slidably connected to the inside of the slide rail (404), a pulling bar (402) is fixedly connected to the side of the clamping block (401), a spring (403) is installed inside the slide rail (404), an end cover (2) is installed on the top of the membrane shell (1), a mounting plug (405) is fixedly connected to the bottom of the end cover (2), and a tubular nanofiltration core rod (3) is installed inside the membrane shell (1).

2. A nanofiltration membrane assembly according to claim 1, characterized in that: The top of the end cover (2) is fixedly connected to an upper connection port (201), the bottom of the membrane shell (1) is fixedly connected to a lower connection port (101), and the right side of the membrane shell (1) is fixedly connected to a filtrate outlet (102).

3. The nanofiltration membrane assembly according to claim 1, characterized in that: A first rubber ring (301) is provided on the top and bottom of the tubular nanofiltration core rod (3), and a second rubber ring (302) is provided on the outside of the tubular nanofiltration core rod (3).

4. A nanofiltration membrane assembly according to claim 3, characterized in that: The first rubber ring (301) on the upper side matches the interior of the end cover (2), the second rubber ring (302) on the upper side matches the interior of the end cover (2), the first rubber ring (301) on the lower side matches the interior of the membrane shell (1), and the second rubber ring (302) on the lower side matches the interior of the membrane shell (1).

5. The nanofiltration membrane assembly according to claim 1, characterized in that: The mounting plug (405) matches the interior of the mounting frame (4).

6. The nanofiltration membrane assembly according to claim 1, characterized in that: The clamping block (401) matches the side groove of the installation plug-in block (405).

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