Ultrafiltration membrane device capable of being recoverably cleaned

Abstract

The utility model discloses a restorable cleaning ultrafiltration membrane device, which comprises an ultrafiltration membrane device, a cleaning component and a sealing component, and the ultrafiltration membrane device comprises a plurality of groups of filter cartridges arranged and mounted in the ultrafiltration membrane device. According to the ultrafiltration membrane device capable of being recoverably cleaned, the straight pipe extending into the filter cartridge in the ultrafiltration membrane device can be used for brushing and washing the inner wall of the filter cartridge in the lifting process through the lifting and reciprocating of the electric push rod on the outer side and the spray head and the brush disc which are arranged at the bottom of the straight pipe when the inner wall of the filter cartridge is cleaned, so that the inner wall of the filter cartridge is cleaned; an upper sealing seat and a lower sealing seat are arranged at the upper end and the lower end of a straight pipe on the ultrafiltration membrane device in a sleeving mode, a sealing ring is arranged outside the straight pipe in the ultrafiltration membrane device in a sleeving mode, and therefore the outer layer dirt adhering to the inner wall of the filter cylinder and dirt blocked in holes are sequentially cleaned away, and the uniformity and the cleaning effect of the filter cylinder in the ultrafiltration membrane device in the cleaning process are improved. And the sealing performance between the straight pipe and the ultrafiltration membrane device in the lifting process can also be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of ultrafiltration membrane devices, in particular to an ultrafiltration membrane device which can be recovered and cleaned. Background Art

[0002] Ultrafiltration membrane device is a membrane separation process based on the principle of sieving and driven by pressure. The filtration accuracy is within the range of 0.005-0.01μm. It can effectively remove particles, colloids, bacterial mats and high molecular organic substances in water and can be widely used in the separation, concentration and purification of substances. There is no phase conversion in the ultrafiltration process.

[0003] Existing recoverable cleanable ultrafiltration membrane devices, such as the recoverable cleanable ultrafiltration membrane device disclosed in publication number CN209464879U, have the advantages of increasing the life of the ultrafiltration membrane and reducing the frequency of ultrafiltration membrane replacement. However, during the cleaning of this ultrafiltration membrane device, it is inconvenient to ensure the uniformity of cleaning by backwashing the cleaning components during the lifting and lowering movement in the filter cartridge of the ultrafiltration membrane device. For this reason, we propose a recoverable cleanable ultrafiltration membrane device. Utility Model Content

[0004] The main purpose of the utility model is to provide an ultrafiltration membrane device that can be recovered and cleaned, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A recoverable cleanable ultrafiltration membrane device comprises an ultrafiltration membrane device, a cleaning component and a sealing component, wherein the ultrafiltration membrane device comprises a plurality of filter cartridges arranged and installed inside the ultrafiltration membrane device, the cleaning component comprises a fixing seat fixedly installed at the upper end of the filter cartridge in the ultrafiltration membrane device, and a straight pipe movably installed at the center of the filter cartridge under the fixing seat, the fixing seat is fixed in the ultrafiltration membrane device, a nozzle is fixedly installed at the lower end of the straight pipe, and the nozzle is a columnar structure, a plurality of nozzles are arranged at the outer end of the nozzle, a brush disk is fixedly installed at the bottom of the nozzle, a fixing plate is fixedly installed at the top of the straight pipe at the outer end of the ultrafiltration membrane device, and an electric push rod fixedly connected to the bottom of the fixing plate is fixedly installed on one side of the ultrafiltration membrane device.

[0007] Preferably, the cleaning assembly further comprises a hose fixedly mounted on the upper end of the fixing plate at the top of the straight tube, and the hose is connected to the straight tube.

[0008] Preferably, the cleaning assembly further comprises an inner sewage discharge pipe fixedly mounted at the bottom of the filter cartridge, and an outer sewage discharge pipe fixedly connected to the lower end of the ultrafiltration membrane device.

[0009] Preferably, the sealing assembly comprises an upper sealing seat and a lower sealing seat respectively fixedly mounted on the ultrafiltration membrane devices at the upper and lower ends of the straight tube, and both the upper sealing seat and the lower sealing seat are movably connected to the straight tube.

[0010] Preferably, the sealing assembly further comprises a sealing ring movably sleeved on the outer end of the straight tube in the ultrafiltration membrane device.

[0011] Preferably, the ultrafiltration membrane device further comprises a water inlet pipe and a water outlet pipe fixedly installed at the upper and lower ends thereof, respectively.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. In the utility model, the straight tube extending into the filter cartridge in the ultrafiltration membrane device can be used to clean the inner wall of the filter cartridge by lifting and reciprocating the outer electric push rod and the nozzle and brush plate installed at the bottom of the straight tube, so as to brush and rinse the inner wall of the filter cartridge during the lifting process, thereby successively cleaning the outer layer of dirt sticking to the inner wall of the filter cartridge and the dirt clogging in the pores, thereby improving the uniformity and cleaning effect of the filter cartridge cleaning in the ultrafiltration membrane device;

[0014] 2. In the utility model, the upper sealing seat and the lower sealing seat sleeved on the upper and lower ends of the straight tube of the ultrafiltration membrane device, as well as the sealing ring sleeved on the outside of the straight tube in the ultrafiltration membrane device, can also ensure the sealing between the straight tube and the ultrafiltration membrane device during lifting. 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 the internal structure diagram of the utility model;

[0017] Figure 3 It is a side sectional view of the utility model;

[0018] Figure 4 For this utility model Figure 3 A magnified view of middle;

[0019] Figure 5 For this utility model Figure 3 Enlarged view of B.

[0020] Reference numerals:

[0021] 100, ultrafiltration membrane device; 101, filter cartridge; 102, water inlet pipe; 103, water outlet pipe;

[0022] 200, cleaning assembly; 201, fixing seat; 202, straight pipe; 203, nozzle; 204, nozzle; 205, brush plate; 206, fixing plate; 207, electric push rod; 208, hose; 209, sewage inner pipe; 210, sewage outer pipe;

[0023] 300, sealing assembly; 301, upper sealing seat; 302, lower sealing seat; 303, sealing ring. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] Embodiment 1:

[0026] like Figure 1-4 As shown, this embodiment provides an ultrafiltration membrane device that can be recovered and cleaned, including an ultrafiltration membrane device 100, a cleaning component 200 and a sealing component 300, the ultrafiltration membrane device 100 includes a plurality of filter cartridges 101 arranged and installed inside the ultrafiltration membrane device 100, the ultrafiltration membrane device 100 also includes an inlet pipe 102 and an outlet pipe 103 fixedly installed at the upper and lower ends thereof, respectively, the cleaning component 200 includes a fixing seat 201 fixedly installed at the upper end of the filter cartridge 101 in the ultrafiltration membrane device 100, and a straight pipe 202 movably installed at the center of the filter cartridge 101 under the fixing seat 201, the fixing seat 201 is fixed in the ultrafiltration membrane device 100, and a nozzle 203 is also fixedly installed at the lower end of the straight pipe 202, and the nozzle 203 It is a columnar structure, and a plurality of groups of nozzles 204 are arranged at the outer end of the nozzle 203, and a brush plate 205 is fixedly installed at the bottom of the nozzle 203. A fixing plate 206 is fixedly installed on the top of the straight tube 202 at the outer end of the ultrafiltration membrane device 100, and an electric push rod 207 fixedly connected to the bottom of the fixing plate 206 is fixedly installed on one side of the ultrafiltration membrane device 100. The cleaning component 200 also includes a hose 208 fixedly installed on the upper end of the fixing plate 206 at the top of the straight tube 202, and the hose 208 is connected to the straight tube 202. The cleaning component 200 also includes a sewage inner pipe 209 fixedly installed at the bottom of the filter cartridge 101, and a sewage outer pipe 210 fixedly connected to the lower end of the ultrafiltration membrane device 100.

[0027] Specifically, the ultrafiltration membrane device 100 is a membrane separation process based on the principle of separation by screening and the driving force of pressure. The filtration accuracy is within the range of 0.005-0.01 μm, and it can effectively remove particles, colloids, bacterial cushions and high molecular organic substances in water. The straight tube 202 in the ultrafiltration membrane device 100 extends into the filter cartridge 101. When cleaning the inner wall of the filter cartridge 101, the outer electric push rod 207 can be raised and lowered back and forth, and the nozzle 203 and the brush plate 205 installed at the bottom of the straight tube 202 can be used to brush and rinse the inner wall of the filter cartridge 101 during the lifting and lowering process. Thereby, the outer layer of dirt sticking to the inner wall of the filter cartridge 101 and the dirt clogging in the pores are cleaned off in turn, thereby improving the uniformity and cleaning effect of the cleaning of the filter cartridge 101 in the ultrafiltration membrane device 100. The multiple groups of nozzles 204 arranged on the outside of the nozzle 203 are mainly used to ensure the uniformity during backwashing. The hose 208 fixedly connected to the top of the straight tube 202 is mainly used for the transportation of cleaning liquid. The inner sewage pipe 209 connected to the bottom of the filter cartridge 101 and the outer sewage pipe 210 connected to the lower end of the ultrafiltration membrane device 100 are mainly used for the discharge of internal and external sewage during the cleaning of the filter cartridge 101.

[0028] Embodiment 2:

[0029] Based on the first embodiment, Figure 5 As shown, the sealing assembly 300 includes an upper sealing seat 301 and a lower sealing seat 302 which are respectively fixedly mounted on the ultrafiltration membrane device 100 at the upper and lower ends of the straight tube 202, and the upper sealing seat 301 and the lower sealing seat 302 are movably connected to the straight tube 202. The sealing assembly 300 also includes a sealing ring 303 which is movably sleeved on the outer end of the straight tube 202 in the ultrafiltration membrane device 100.

[0030] Specifically, the upper sealing seat 301 and the lower sealing seat 302 sleeved on the upper and lower ends of the straight tube 202 of the ultrafiltration membrane device 100, and the sealing ring 303 sleeved on the outside of the straight tube 202 in the ultrafiltration membrane device 100 can also ensure the sealing between the straight tube 202 and the ultrafiltration membrane device 100 during lifting and lowering.

[0031] The working principle and use process of this utility model:

[0032] During the backwashing cleaning of the filter cartridge 101 in the ultrafiltration membrane device 100, the cleaning liquid will be transported to the multiple groups of straight pipes 202 at the lower end through the hose 208 on the top of the fixed plate 206, and along the straight pipes 202, through the nozzles 203 at the bottom of the straight pipes 202 and the nozzles 204 on the outside, the inner wall of the filter cartridge 101 is evenly backwashed. During the backwashing of the nozzles 203 in the filter cartridge 101, the electric push rod 207 fixedly installed on the outside of the ultrafiltration membrane device 100 will also drive the filter cartridge through the driven fixed plate 206. The nozzle 203 and the straight tube 202 in 101 move up and down and reciprocate, and during the up and down movement, the inner wall of the filter cartridge 101 is sprayed and brushed and brushed and sprayed respectively by the nozzle 203 and the brush plate 205, thereby ensuring the uniformity of cleaning inside the filter cartridge 101. During the up and down reciprocating movement of the straight tube 202, the upper sealing seat 301, the lower sealing seat 302 and the sealing ring 303 on the ultrafiltration membrane device 100 and inside the outer end of the straight tube 202 can also ensure the sealing between the ultrafiltration membrane device 100 and the straight tube 202.

[0033] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A recoverable cleanable ultrafiltration membrane device, comprising an ultrafiltration membrane device (100), a cleaning assembly (200) and a sealing assembly (300), wherein the ultrafiltration membrane device (100) comprises a plurality of filter cartridges (101) arranged and installed inside the ultrafiltration membrane device, characterized in that: The cleaning assembly (200) comprises a fixing seat (201) fixedly mounted on the upper end of the filter cartridge (101) in the ultrafiltration membrane device (100), and a straight tube (202) movably mounted at the center of the filter cartridge (101) below the fixing seat (201); the fixing seat (201) is fixed in the ultrafiltration membrane device (100); a nozzle (203) is fixedly mounted on the lower end of the straight tube (202); the nozzle (203) is a columnar structure; a plurality of nozzles (204) are arranged at the outer end of the nozzle (203); a brush plate (205) is fixedly mounted on the bottom of the nozzle (203); a fixing plate (206) is fixedly mounted on the top of the straight tube (202) at the outer end of the ultrafiltration membrane device (100); and an electric push rod (207) fixedly connected to the bottom of the fixing plate (206) is fixedly mounted on one side of the ultrafiltration membrane device (100).

2. A recoverable cleanable ultrafiltration membrane device according to claim 1, characterized in that: The cleaning assembly (200) further comprises a hose (208) fixedly mounted on the upper end of the top fixing plate (206) of the straight tube (202), and the hose (208) is kept in communication with the straight tube (202).

3. The recoverable cleanable ultrafiltration membrane device according to claim 1, characterized in that: The cleaning assembly (200) further comprises an inner sewage discharge pipe (209) fixedly mounted at the bottom of the filter cartridge (101), and an outer sewage discharge pipe (210) fixedly connected to the lower end of the ultrafiltration membrane device (100).

4. The recoverable cleanable ultrafiltration membrane device according to claim 1, characterized in that: The sealing assembly (300) comprises an upper sealing seat (301) and a lower sealing seat (302) respectively fixedly mounted on the ultrafiltration membrane device (100) at the upper and lower ends of the straight tube (202), and the upper sealing seat (301) and the lower sealing seat (302) are both movably connected to the straight tube (202).

5. The recoverable cleanable ultrafiltration membrane device according to claim 1, characterized in that: The sealing assembly (300) further comprises a sealing ring (303) which is movably sleeved on the outer end of the straight tube (202) in the ultrafiltration membrane device (100).

6. The recoverable cleanable ultrafiltration membrane device according to claim 1, characterized in that: The ultrafiltration membrane device (100) further comprises a water inlet pipe (102) and a water outlet pipe (103) fixedly mounted at the upper and lower ends thereof, respectively.

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