A membrane filtration device
Patent Information
- Application Number
- CN202522571584.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-03
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-03
AI Technical Summary
Existing membrane filtration devices are too large to be suitable for laboratory liquid handling.
By employing anti-deformation screens and PTFE gaskets, combined with internal assembly rings and fixing bolts, a miniaturized membrane filtration device is constructed to ensure stability and sealing.
This technology enables the miniaturization of membrane filtration devices, improving their applicability and making them suitable for various liquid handling applications.
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Figure CN224925720U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of membrane filtration devices, and specifically relates to a membrane filtration device. Background Technology
[0002] A membrane filtration device is a device that uses a filter membrane to filter and remove impurities and microorganisms from a liquid. It usually consists of two parts: a filter membrane and an assembly frame. The membrane filtration device mainly uses negative pressure or pressure to drive the liquid sample through the filter membrane, thereby removing impurities and microorganisms from the liquid. Due to its advantages of high filtration efficiency and simple operation, it is widely used in wastewater treatment, laboratory liquid treatment, and microbial detection and analysis in water.
[0003] The membrane filters commonly used in the prior art are mainly membrane filtration devices with a daily water treatment capacity of more than 5T / d. These membrane filtration devices are relatively large in size and have limited applicability, making them unsuitable for liquid treatment processes in laboratories.
[0004] Therefore, in view of the above-mentioned technical problems, it is necessary to provide a membrane filtration device.
[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content
[0006] The purpose of this invention is to provide a membrane filtration device that simplifies the size of the membrane filtration device and improves its applicability.
[0007] To achieve the above objectives, a specific embodiment of this utility model provides a membrane filtration device, including a filter body. A pair of anti-deformation screens are fixedly assembled inside the filter body. A conductive connector is fixedly connected to the top of the filter body. Membrane mesh sheets are evenly distributed on both sides of the filter body. Sealing gaskets are evenly distributed between the pair of membrane mesh sheets and the anti-deformation screens. Fixing strips are evenly distributed on the side of the pair of membrane mesh sheets away from the filter body. Multiple sets of evenly distributed fixing bolts are fixedly connected between the fixing strips, membrane mesh sheets, sealing gaskets, and the filter body.
[0008] In one or more embodiments of this utility model, the thickness of the pair of anti-deformation screens is 1 mm. The anti-deformation screens provide anti-deviation support for the membrane mesh. The sealing gasket is a PTFE gasket. PTFE gaskets have the advantages of corrosion resistance and good high-temperature resistance.
[0009] In one or more embodiments of this utility model, an inner assembly ring is integrally formed on the inner wall of the filter body. The inner assembly ring serves to assemble and limit the membrane mesh, sealing gasket, and fixing strip. Simultaneously, multiple sets of fixing bolts are threadedly connected to the inner assembly ring to assemble the membrane mesh, sealing gasket, and fixing strip. The outer edges of a pair of anti-deformation screens are welded to the inner assembly ring, ensuring the connection stability of the anti-deformation screens.
[0010] In one or more embodiments of this utility model, a filter body, an inner assembly ring, and a pair of anti-deformation screens are fitted together to form a filter guide cavity. The filtered liquid is discharged through the filter guide cavity. A connecting hole is provided above the inner assembly ring, and the connecting hole is connected to a conductive connector. The filter guide cavity and the conductive connector are connected through the connecting hole, allowing the filtered liquid in the filter guide cavity to be transported and discharged via a self-priming pump connected externally to the conductive connector.
[0011] In one or more embodiments of this utility model, multiple mounting bolt holes are provided around the membrane mesh, sealing gasket, fixing strip, and inner assembly ring, and these mounting bolt holes correspond to multiple sets of fixing bolts. The membrane mesh, sealing gasket, fixing strip, and inner assembly ring are fixedly connected by multiple sets of fixing bolts passing through the mounting bolt holes.
[0012] In one or more embodiments of this utility model, the conductive connector is a pagoda connector with a diameter of 8mm, and the four corners of the membrane mesh, sealing gasket and fixing strip are all rounded with a diameter of 5mm.
[0013] Compared with the prior art, the membrane filtration device disclosed in this utility model can support and limit the membrane mesh by setting an anti-deformation screen, which ensures the stability of the membrane filtration device. At the same time, the structure is small in size and can be applied to a variety of liquid treatment sites, thus improving the applicability of the membrane filtration device. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a schematic diagram of the membrane filtration device in one embodiment of the present invention; Figure 2 This is a cross-sectional view of the filter body in one embodiment of the present invention; Figure 3for Figure 2 Schematic diagram of the structure at point A in the middle; Figure 4 This is a front view of the filter body in one embodiment of the present invention; Figure 5 This is a perspective view of the filter body in one embodiment of the present invention.
[0016] Explanation of key figure labels: 1-Filter body, 2-Anti-deformation screen, 3-Conducting connector, 4-Membrane mesh, 5-Sealing gasket, 6-Fixing strip, 7-Fixing bolt, 8-Inner assembly ring, 9-Filter guide cavity. Detailed Implementation
[0017] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.
[0018] like Figures 1 to 5 As shown, a membrane filtration device according to one embodiment of the present invention includes a filter body 1, and a pair of anti-deformation screens 2 are fixedly assembled inside the filter body 1. Specifically, the thickness of the pair of anti-deformation screens 2 is 1mm. The anti-deformation screens 2 serve to support the membrane mesh 4 to prevent it from shifting.
[0019] like Figures 1 to 3 As shown, a connecting connector 3 is fixedly connected to the top of the filter body 1. The filtered liquid in the filter guide chamber 9 can be extracted and discharged by connecting and removing the connecting connector 3.
[0020] Among them, the connecting joint 3 can be connected to an external self-priming pump in actual application.
[0021] like Figure 1 As shown, membrane meshes 4 are evenly distributed on both sides of the filter body 1. Impurities and microorganisms contained in the liquid outside the filter body 1 can be filtered and removed through a pair of membrane meshes 4.
[0022] like Figure 1 As shown, sealing gaskets 5 are evenly distributed between a pair of membrane meshes 4 and the anti-deformation screen 2. The sealing gaskets 5 ensure the assembly sealing of the membrane meshes 4, thus guaranteeing the filtering effect of the membrane meshes 4 on the liquid.
[0023] Preferably, the sealing gasket 5 is a PTFE sealing gasket. PTFE sealing gaskets have the advantages of good corrosion resistance and high temperature resistance.
[0024] like Figure 1 As shown, a pair of membrane meshes 4 are evenly distributed with fixing strips 6 on the side opposite to the filter body 1. The membrane meshes 4 are assembled and fixed by the pair of fixing strips 6.
[0025] It is worth noting that the conductive connector 3 is a pagoda connector with a diameter of 8mm, and the four corners of the membrane mesh 4, sealing gasket 5 and fixing strip 6 are all rounded with a diameter of 5mm.
[0026] like Figure 1 As shown, multiple sets of evenly distributed fixing bolts 7 are fixedly connected between the fixing strip 6, the membrane mesh 4, the sealing gasket 5, and the filter body 1. The membrane mesh 4, the sealing gasket 5, and the fixing strip 6 are assembled and fixed by the multiple sets of fixing bolts 7.
[0027] like Figures 2 to 5 As shown, an inner assembly ring 8 is integrally formed on the inner wall of the filter body 1. The inner assembly ring 8 is used to assemble and limit the membrane mesh 4, the sealing gasket 5, and the fixing strip 6. At the same time, the membrane mesh 4, the sealing gasket 5, and the fixing strip 6 can be assembled by multiple sets of fixing bolts 7 connected to the inner assembly ring 8 by threads.
[0028] Specifically, the outer edges of a pair of anti-deformation screens 2 are welded to the inner assembly rings 8. This ensures the connection stability of the anti-deformation screens 2.
[0029] Preferably, the edges of the pair of anti-deformation screens 2 and the inner assembly rings 8 are formed by argon arc welding.
[0030] like Figures 2 to 3 As shown, the filter body 1, the inner assembly ring 8, and a pair of anti-deformation screens 2 cooperate to form a filter guide cavity 9. The filtered liquid is discharged through the filter guide cavity 9.
[0031] The inner assembly ring 8 has a connecting hole at its top, which is connected to the conductive connector 3. The connecting hole connects the filter guide cavity 9 to the conductive connector 3, allowing the filtered liquid in the filter guide cavity 9 to be transported and discharged through a self-priming pump connected to the conductive connector 3.
[0032] In addition, multiple mounting bolt holes are provided around the membrane mesh 4, sealing gasket 5, fixing strip 6, and inner assembly ring 8, and these mounting bolt holes correspond to multiple sets of fixing bolts 7. The membrane mesh 4, sealing gasket 5, fixing strip 6, and inner assembly ring 8 are fixedly connected by multiple sets of fixing bolts 7 passing through the mounting bolt holes.
[0033] In practical use, the sealing gasket 5, membrane mesh 4, and fixing strip 6 are arranged from the inside out. Multiple sets of fixing bolts 7 are used to connect and fix the sealing gasket 5, membrane mesh 4, and fixing strip 6 to the inner assembly ring 8 through the assembly bolt holes, thus completing the assembly process of the membrane filtration device. Subsequently, a self-priming pump is connected externally through the connecting connector 3. During use, the filter body 1 is assembled inside the filtration equipment. By controlling the operation of the self-priming pump, the liquid outside the filtration guide chamber 9 can be filtered through the membrane mesh 4 and the anti-deformation screen 2 before being discharged, thus completing the process of filtering and removing impurities and microorganisms from the liquid.
[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0035] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A membrane filtration device, characterized in that, The filter includes a filter body, within which a pair of anti-deformation screens are fixedly assembled. A conductive connector is fixedly connected to the top of the filter body. Membrane meshes are evenly distributed on both sides of the filter body. Sealing gaskets are evenly distributed between the pair of membrane meshes and the anti-deformation screens. Fixing strips are evenly distributed on the side of the pair of membrane meshes facing away from the filter body. Multiple sets of evenly distributed fixing bolts are fixedly connected between the fixing strips, membrane meshes, sealing gaskets, and the filter body.
2. The membrane filtration device according to claim 1, characterized in that, The thickness of the pair of anti-deformation screens is 1 mm, and the sealing gasket is a PTFE sealing gasket.
3. The membrane filtration device according to claim 2, characterized in that, An internal assembly ring is integrally formed on the inner wall of the filter body.
4. A membrane filtration device according to claim 3, characterized in that, The outer edges of the pair of anti-deformation screens are welded to the inner assembly rings, and the welding method is argon arc welding.
5. A membrane filtration device according to claim 4, characterized in that, The filter body, the inner assembly ring, and a pair of anti-deformation screens cooperate to form a filter guide cavity.
6. A membrane filtration device according to claim 5, characterized in that, The inner assembly ring has a connecting hole at its top, and the two ends of the connecting hole are connected to the filter guide cavity and the conductive connector, respectively.
7. A membrane filtration device according to claim 6, characterized in that, The membrane mesh, sealing gasket, fixing strip and inner assembly ring are all provided with multiple assembly bolt holes around their perimeter, and the multiple assembly bolt holes are correspondingly provided with multiple sets of fixing bolts.
8. A membrane filtration device according to claim 7, characterized in that, The conductive connector is a pagoda connector with a diameter of 8mm.
9. A membrane filtration device according to claim 8, characterized in that, The four corners of the membrane mesh, sealing gasket, and fixing strip are all rounded.
10. A membrane filtration device according to claim 9, characterized in that, The diameter of the fillet is 3mm to 5mm.
