Flushable ultrafiltration assembly
By designing positioning grooves, positioning columns, sealing gaskets, and bolt structures in the ultrafiltration module, the problem of inconvenient disassembly of ultrafiltration membranes in existing technologies is solved, enabling convenient replacement of ultrafiltration membranes and efficient operation of the system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BIHAI TONGYUAN (HENAN) TECHNOLOGY CO LTD
- Filing Date
- 2025-04-25
- Publication Date
- 2026-04-17
AI Technical Summary
In existing washable ultrafiltration modules, the ultrafiltration membrane is embedded in the internal structure of the module, making it inconvenient to disassemble and replace after the membrane fails.
A washable ultrafiltration module was designed. By embedding an ultrafiltration membrane module inside the filter barrel and setting a positioning groove, positioning post, sealing gasket and bolt structure between the barrel cover and the filter barrel, the installation and removal of the barrel cover is more convenient, ensuring the fixing force and sealing performance, and facilitating the cleaning and replacement of the membrane.
It enables convenient disassembly and replacement of ultrafiltration membranes, improves system efficiency and safety, prevents liquid leakage, and extends membrane lifespan.
Smart Images

Figure CN224126991U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ultrafiltration component technology, and in particular to a washable ultrafiltration component. Background Technology
[0002] Ultrafiltration technology, as an important membrane separation technology, has a wide range of applications in water treatment, food and beverage, biopharmaceuticals and many other fields. The ultrafiltration module is the core component for realizing the ultrafiltration process. It separates and retains substances in the fluid through an ultrafiltration membrane with a specific pore size to achieve purification, concentration and other purposes.
[0003] During long-term operation and use, the surface of the ultrafiltration membrane in existing washable ultrafiltration modules is continuously affected by changes in water quality, chemical corrosion, or physical factors (such as changes in water flow rate and pressure), leading to a gradual decline in membrane performance. These effects may cause problems such as corrosion, clogging, aging, or mechanical damage to the ultrafiltration membrane. Once these situations occur, membrane replacement and maintenance become extremely complex and difficult. The main problem is that the ultrafiltration membrane is usually embedded in the internal structure of the module, forming a tight integrated system. This makes it inconvenient for personnel to disassemble and replace the membrane after it fails. Utility Model Content
[0004] The purpose of this invention is to solve the problem that in the prior art, ultrafiltration membranes are usually embedded in the internal structure of components to form a tight integrated system, which makes it inconvenient for personnel to disassemble and replace the membrane after it fails.
[0005] To achieve the above objectives, this utility model adopts the following technical solution: a washable ultrafiltration assembly, including a filter barrel, an ultrafiltration membrane assembly movably embedded inside the filter barrel, positioning grooves on both sides of the inner wall of the filter barrel, and positioning posts fixedly installed on both sides of the outer surface of the ultrafiltration membrane assembly, with both positioning posts matching the positioning grooves, and further comprising:
[0006] A lid is movably fitted onto the outer surface of the ultrafiltration membrane assembly. The lid is movably fitted onto the outer surface of the top filter barrel. A first sealing gasket is provided on the top of the filter barrel.
[0007] The second sealing gasket is disposed on the inner wall of the barrel lid and is movably fitted onto the top outer surface of the filter barrel.
[0008] In a preferred embodiment, a connecting plate is fixedly fitted onto the outer surface of the filter barrel, and the right outer surface of the barrel cover is movably connected to the left outer surface of the connecting plate.
[0009] The technical effect of adopting the above-mentioned further solution is that the lid can be pushed to fit onto the outer surface of the ultrafiltration membrane module and to fit against the left side of the connecting plate.
[0010] In a preferred embodiment, two fixing plates are fixedly installed on the left side of the bucket lid, and both fixing plates are movably embedded inside the connecting plate.
[0011] The technical effect of adopting the above-mentioned further solution is that the fixing plate can be embedded into the connecting plate.
[0012] In a preferred embodiment, both fixing plates have threaded holes inside, and bolts are threaded to both sides of the connecting plate.
[0013] The technical effect of adopting the above-mentioned further solution is that the bolt can be rotated and embedded into the threaded hole.
[0014] In a preferred embodiment, both bolts are matched with the threaded holes, and a water outlet pipe is fixedly installed on the inside left side of the bucket lid.
[0015] The technical effect of adopting the above-mentioned further solution is that the lid and the filter can be fixed with bolts.
[0016] In a preferred embodiment, a first check valve is provided inside the water outlet pipe, a backflushing pipe is fixedly installed on the top side inside the water outlet pipe, and a second check valve is provided inside the backflushing pipe.
[0017] The technical effect of adopting the above-mentioned further solution is that water can flow out of the filter bucket through the outlet pipe.
[0018] In a preferred embodiment, a water inlet pipe is fixedly installed on the top of the filter barrel.
[0019] The technical effect of adopting the above-mentioned further solution is that raw water can be injected into the filter tank through the water inlet pipe.
[0020] In a preferred embodiment, a wastewater discharge pipe is fixedly installed on the right side of the inside of the filter barrel, and a third one-way valve is provided inside the wastewater discharge pipe.
[0021] The technical effect of adopting the above-mentioned further solution is that it allows sewage to flow out of the filter bucket through the sewage outlet pipe.
[0022] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0023] This invention, through the design of the bucket lid and the second sealing gasket, not only makes the installation and removal of the bucket lid more convenient, ensuring sufficient fixing force, but also facilitates the disassembly of the ultrafiltration membrane assembly when cleaning or replacing it. At the same time, the cooperative design of the bucket lid with the first and second sealing gaskets ensures the sealing between the filter bucket and the bucket lid, effectively preventing liquid leakage and ensuring the working efficiency and safety of the ultrafiltration system. It solves the problem in the prior art that ultrafiltration membranes are usually embedded in the internal structure of the assembly, forming a tight integrated system, which makes it inconvenient for personnel to disassemble and replace the membrane after it fails. Attached Figure Description
[0024] Figure 1 A rear-view three-dimensional structural diagram of a washable ultrafiltration module provided by this utility model;
[0025] Figure 2 This is a partial three-dimensional structural diagram of a washable ultrafiltration module provided by the present invention;
[0026] Figure 3 A cross-sectional perspective view of the filter barrel of a washable ultrafiltration module provided by this utility model. Figure 1 ;
[0027] Figure 4 A cross-sectional perspective view of the bucket lid of a washable ultrafiltration assembly provided by this utility model;
[0028] Figure 5 A cross-sectional perspective view of the filter barrel of a washable ultrafiltration module provided by this utility model. Figure 2 .
[0029] Legend:
[0030] 1. Filter barrel; 101. Positioning groove; 102. Ultrafiltration membrane module; 103. Positioning column; 104. First sealing gasket; 105. Barrel lid; 106. Second sealing gasket; 107. Fixing plate; 108. Connecting plate; 109. Bolt; 110. Threaded hole; 2. Water outlet pipe; 201. First check valve; 202. Backflushing pipe; 203. Second check valve; 204. Water inlet pipe; 205. Wastewater outlet pipe; 206. Third check valve. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0032] Example 1, please refer to Figures 1 to 5 This utility model provides a technical solution: a washable ultrafiltration assembly, including a filter barrel 1, an ultrafiltration membrane assembly 102 movably embedded inside the filter barrel 1, positioning grooves 101 on both sides of the inner wall of the filter barrel 1, and positioning posts 103 fixedly installed on both sides of the outer surface of the ultrafiltration membrane assembly 102, with the two positioning posts 103 matching the positioning grooves 101. It also includes a barrel cover 105, movably sleeved on the outer surface of the ultrafiltration membrane assembly 102, and movably sleeved on the outer surface of the top filter barrel 1. A first sealing gasket 1 is provided on the top of the filter barrel 1. 04; The second sealing gasket 106 is set on the inner wall of the barrel cover 105. The second sealing gasket 106 is movably sleeved on the top outer surface of the filter barrel 1. The outer surface of the filter barrel 1 is fixedly sleeved with a connecting plate 108. The right outer surface of the barrel cover 105 is movably connected to the left outer surface of the connecting plate 108. Two fixing plates 107 are fixedly installed on the left side of the barrel cover 105. Both fixing plates 107 are movably embedded in the interior of the connecting plate 108. Both fixing plates 107 have threaded holes 110 inside. Bolts 109 are threadedly connected to both sides of the connecting plate 108.
[0033] In this embodiment, the operator can first pick up the ultrafiltration membrane assembly 102, place it into the filter bucket 1, and embed the positioning post 103 into the positioning groove 101. Then, the operator can pick up the bucket lid 105, place it on the left side of the ultrafiltration membrane assembly 102, and push the bucket lid 105 so that its inner wall can fit against the left side of the first sealing gasket 104. At the same time, the second sealing gasket 106 can be fitted onto the left outer surface of the filter bucket 1, and the fixing plate 107 can be embedded into the connecting plate 108. Then, the operator can rotate the bolt 109 to embed it into the fixing plate 108. The inside of the threaded hole 110 on 07 is used to fix the bucket cover 105. The structure of the bucket cover 105 and the second sealing gasket 106 not only makes the installation and removal of the bucket cover 105 more convenient, but also ensures sufficient fixing force and makes it easy for operators to disassemble when cleaning or replacing the ultrafiltration membrane assembly 102. At the same time, the matching design of the bucket cover 105 with the first sealing gasket 104 and the second sealing gasket 106 ensures the sealing between the filter bucket 1 and the bucket cover 105, effectively preventing liquid leakage and ensuring the working efficiency and safety of the ultrafiltration system.
[0034] Example 2, as Figures 1 to 5As shown, both bolts 109 are matched with threaded holes 110. A water outlet pipe 2 is fixedly installed on the left side inside the bucket cover 105. A first check valve 201 is installed inside the water outlet pipe 2. A backflushing pipe 202 is fixedly installed on the top side inside the water outlet pipe 2. A second check valve 203 is installed inside the backflushing pipe 202. A water inlet pipe 204 is fixedly installed on the top of the filter bucket 1. A sludge outlet pipe 205 is fixedly installed on the right side inside the filter bucket 1. A third check valve 206 is installed inside the sludge outlet pipe 205.
[0035] In this embodiment, personnel can inject raw water into the filter tank 1 through the inlet pipe 204, allowing the raw water to be filtered through the ultrafiltration membrane module 102 and flow out of the filter tank 1 through the outlet pipe 2. When it is necessary to rinse the ultrafiltration membrane module 102, personnel can first close the first one-way valve 201 and open the second one-way valve 203, and then inject clean water into the outlet pipe 2 through the backwash pipe 202, allowing the clean water to flow into the filter tank 1 through the outlet pipe 2 to rinse the ultrafiltration membrane module 102. At the same time, personnel can open the third one-way valve 206, allowing dirty water to flow out of the filter tank 1 through the wastewater outlet pipe 205. Through the structure of the backwash pipe 202 and the wastewater outlet pipe 205, the ultrafiltration membrane module 102 can be effectively cleaned, removing pollutants and impurities accumulated on the membrane surface. Backwashing can thoroughly remove dirt from the membrane surface, extend the service life of the ultrafiltration membrane module 102, and reduce membrane fouling and clogging problems.
[0036] Working principle: In use, the operator first picks up the ultrafiltration membrane module 102 and places it into the filter bucket 1, so that the positioning post 103 is embedded in the positioning groove 101. Then, the operator picks up the bucket lid 105 and places it on the left side of the ultrafiltration membrane module 102. The operator then pushes the bucket lid 105 so that its inner wall can fit against the left side of the first sealing gasket 104, while the second sealing gasket 106 is fitted onto the left outer surface of the filter bucket 1, causing the fixing plate 107 to be embedded into the connecting plate 108. After that, the operator can rotate the bolt 109 to embed it into the fixing plate 108. The threaded hole 110 on plate 107 is used to fix the lid 105. The structure of lid 105 and second sealing gasket 106 not only makes the installation and removal of lid 105 more convenient, but also ensures sufficient fixing force and makes it easy for operators to disassemble when cleaning or replacing ultrafiltration membrane assembly 102. At the same time, the matching design of lid 105 with first sealing gasket 104 and second sealing gasket 106 ensures the sealing between filter barrel 1 and lid 105, effectively preventing liquid leakage and ensuring the working efficiency and safety of ultrafiltration system. During use, personnel can inject raw water into the filter tank 1 through the inlet pipe 204, allowing the raw water to be filtered through the ultrafiltration membrane module 102 and flow out of the filter tank 1 through the outlet pipe 2. When it is necessary to rinse the ultrafiltration membrane module 102, personnel can first close the first one-way valve 201 and open the second one-way valve 203, and then inject clean water into the outlet pipe 2 through the backwash pipe 202, allowing the clean water to flow into the filter tank 1 through the outlet pipe 2 to rinse the ultrafiltration membrane module 102. At the same time, personnel can open the third one-way valve 206, allowing dirty water to flow out of the filter tank 1 through the wastewater outlet pipe 205. The structure of the backwash pipe 202 and the wastewater outlet pipe 205 can effectively clean the ultrafiltration membrane module 102, remove pollutants and impurities accumulated on the membrane surface, and thoroughly remove dirt from the membrane surface, extending the service life of the ultrafiltration membrane module 102 and reducing membrane fouling and clogging problems.
[0037] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.
Claims
1. A washable ultrafiltration assembly, comprising a filter barrel (1), wherein an ultrafiltration membrane assembly (102) is movably embedded inside the filter barrel (1), positioning grooves (101) are provided on both sides of the inner wall of the filter barrel (1), and positioning posts (103) are fixedly installed on both sides of the outer surface of the ultrafiltration membrane assembly (102), wherein both positioning posts (103) are matched with the positioning grooves (101), characterized in that, Also includes: A lid (105) is movably fitted on the outer surface of the ultrafiltration membrane assembly (102). The lid (105) is movably fitted on the outer surface of the top filter barrel (1). A first sealing gasket (104) is provided on the top of the filter barrel (1). The second sealing gasket (106) is disposed on the inner wall of the barrel cover (105) and is movably sleeved on the top outer surface of the filter barrel (1).
2. A rinseable ultrafiltration module according to claim 1, wherein: The outer surface of the filter barrel (1) is fixedly fitted with a connecting plate (108), and the right outer surface of the barrel cover (105) is movably connected to the left outer surface of the connecting plate (108).
3. A rinseable ultrafiltration module according to claim 2, wherein: Two fixing plates (107) are fixedly installed on the left side of the bucket lid (105), and both fixing plates (107) are movably embedded inside the connecting plate (108).
4. A rinseable ultrafiltration module according to claim 3, wherein: Both of the fixing plates (107) have threaded holes (110) inside, and both sides of the connecting plate (108) are threaded with bolts (109).
5. A rinseable ultrafiltration module according to claim 4, wherein: Both bolts (109) are matched with the threaded holes (110), and a water outlet pipe (2) is fixedly installed on the inside left side of the bucket lid (105).
6. A rinseable ultrafiltration module according to claim 5 wherein: The outlet pipe (2) is equipped with a first check valve (201), and a backflushing pipe (202) is fixedly installed on the top side of the outlet pipe (2). The backflushing pipe (202) is equipped with a second check valve (203).
7. A rinseable ultrafiltration module according to claim 1 wherein: A water inlet pipe (204) is fixedly installed on the top of the filter barrel (1).
8. A rinseable ultrafiltration module according to claim 7, wherein: A wastewater discharge pipe (205) is fixedly installed on the right side inside the filter barrel (1), and a third one-way valve (206) is installed inside the wastewater discharge pipe (205).