An ultrafiltration membrane pack

Abstract

The purpose of this utility model is to disclose an ultrafiltration membrane package, including end caps and a membrane package body. The end caps are disposed on the upper and lower sides of the membrane package body. The membrane package body includes several layers of filter components and several layers of screens, which are alternately arranged from top to bottom. An isolation layer is disposed on the upper and lower sides of the membrane package body. The isolation layer and the end cap are fixedly connected to each other by a reinforcing layer. The end cap and the membrane package body are fixedly connected to each other by an encapsulated shell and an end cap seal. The encapsulated shell and the end cap seal are integrally formed by encapsulation injection molding. Compared with the prior art, the integral forming by encapsulation injection molding combines the end cap, reinforcing layer, isolation layer and membrane package body by encapsulation shell and end cap seal, protecting the surface of the ultrafiltration membrane package from contamination, simplifying the production and installation operation steps, facilitating the automation of pharmaceutical purification processes, and achieving the purpose of this utility model.

Description

Technical Field

[0001] This utility model relates to the field of biopharmaceutical purification, and in particular to an ultrafiltration membrane pack for biopharmaceutical purification. Background Technology

[0002] In the field of biopharmaceutical purification, ultrafiltration membranes are often used for the separation and purification of proteins and enzymes, the treatment of cell culture media, and the purification and concentration of drugs.

[0003] The working principle of an ultrafiltration membrane pack: The pressure difference between the two sides of the membrane pack is used as the driving force, and the ultrafiltration membrane pack is used as the filtration medium. Under a certain pressure, when the raw liquid flows through the surface of the membrane pack, the surface of the ultrafiltration membrane pack is densely packed with many micropores. These micropores only allow water and small molecules to pass through and become permeate, while substances in the raw solution with a volume larger than the diameter of the micropores on the membrane surface are trapped on the liquid inlet side of the membrane pack and the solution is concentrated, thereby achieving the purification, separation, and concentration of the raw solution.

[0004] Existing ultrafiltration membrane packs are usually encapsulated with glue using tooling, which can easily contaminate the surface of the ultrafiltration membrane packs and is not convenient for installation and production automation.

[0005] Therefore, there is a particular need for an ultrafiltration membrane pack to address the aforementioned existing problems. Utility Model Content

[0006] The purpose of this invention is to provide an ultrafiltration membrane pack that addresses the shortcomings of existing technologies, prevents surface contamination of the ultrafiltration membrane pack, facilitates automated production of pharmaceutical purification, has a simple structure, and is highly practical.

[0007] The technical problem solved by this utility model can be achieved by the following technical solution:

[0008] An ultrafiltration membrane pack includes end caps and a membrane pack body. The end caps are disposed on the upper and lower sides of the membrane pack body. The membrane pack body includes several layers of filter components and several layers of screens, which are alternately arranged from top to bottom. An isolation layer is disposed on the upper and lower sides of the membrane pack body. The isolation layer and the end cap are fixedly connected to each other through a reinforcing layer. The end caps and the membrane pack body are fixedly connected to each other through an encapsulated shell and an end cap seal. The encapsulated shell and the end cap seal are integrally formed by encapsulation injection molding.

[0009] In a preferred embodiment of the present invention, the filtration assembly includes a filter membrane and a support layer, wherein the filter membrane is disposed on the upper and lower sides of the support layer.

[0010] In a preferred embodiment of the present invention, the thickness of the filter assembly is 0.2-0.3 mm, and the filter assembly has at least 3 layers.

[0011] In a preferred embodiment of this utility model, the thickness of the screen is 0.15-0.25 mm, and the screen has at least one layer.

[0012] In a preferred embodiment of this utility model, the thickness of the isolation layer is 0.2-0.4 mm.

[0013] In a preferred embodiment of this utility model, the thickness of the reinforcing layer is 0.15-0.25 mm.

[0014] In a preferred embodiment of this utility model, the thickness of the end cap is 2.5-4.0 mm.

[0015] In a preferred embodiment of this utility model, the thickness of the rubber-coated outer shell is 4.5-6.0 mm.

[0016] In a preferred embodiment of this utility model, the thickness of the end cap seal is 4.5-5.5 mm.

[0017] Compared with the prior art, the ultrafiltration membrane pack of this utility model is integrally formed by a rubber-coated injection molding process, which seals and combines the end cap, reinforcing layer, isolation layer and membrane pack body through the rubber-coated shell and end cap, protecting the surface of the ultrafiltration membrane pack from contamination, simplifying the production and installation operation steps, facilitating the automation of pharmaceutical purification processes, and achieving the purpose of this utility model.

[0018] The features of this utility model can be clearly understood by referring to the drawings and the following detailed description of the preferred embodiments. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the external structure of the ultrafiltration membrane pack of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the ultrafiltration membrane pack of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the filter assembly of this utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the ultrafiltration membrane pack of this utility model. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0024] Example

[0025] like Figures 1 to 3 As shown, the ultrafiltration membrane pack of this utility model includes an end cap 10 and a membrane pack body 20. The end cap 10 is disposed on the upper and lower sides of the membrane pack body 20. The membrane pack body 20 includes several layers of filter components 21 and several layers of screens 22. The filter components 21 and screens 22 are arranged alternately from top to bottom. An isolation layer 30 is provided on the upper and lower sides of the membrane pack body 20 respectively. The isolation layer 30 and the end cap 10 are fixedly connected to each other by a reinforcing layer 40. The end cap 10 and the membrane pack body 20 are fixedly connected to each other by an encapsulated shell 50 and an end cap seal 60. The encapsulated shell 50 and the end cap seal 60 are integrally formed by encapsulation injection molding.

[0026] In this embodiment, the filter assembly 21 includes a filter membrane 211 and a support layer 212, with the filter membrane 211 disposed on the upper and lower sides of the support layer 212.

[0027] In this embodiment, the thickness of the filter component 21 is 0.2-0.3 mm, and the filter component 21 has at least 3 layers; the thickness of the screen 22 is 0.15-0.25 mm, and the screen 22 has at least 1 layer.

[0028] In this embodiment, the thickness of the isolation layer 30 is 0.2-0.4 mm, and the thickness of the reinforcing layer 40 is 0.15-0.25 mm.

[0029] In this embodiment, the thickness of the end cap 10 is 2.5-4.0 mm.

[0030] In this embodiment, the thickness of the rubber-coated outer shell 50 is 4.5-6.0 mm, and the thickness of the end cap seal 60 is 4.5-5.5 mm.

[0031] like Figure 4 As shown, the preparation process of the ultrafiltration membrane pack of this utility model is as follows:

[0032] Mold closing and casting: The end cap 10, reinforcing layer 40, isolation layer 30, filter assembly 21 and screen 22 are fixed to the fixed seat 110 of the fixed mold 100, and the fixed mold 100 and moving mold 200 are used for mold closing and shaping.

[0033] Integrated encapsulation by overmolding: End cap 10 is sealed by end cap seal 60, and the overmolded outer shell 50 is coated with a reinforcing layer, an isolation layer, a filter component and a screen by overmolding process.

[0034] Cooling and shaping: The ultrafiltration membrane pack is cooled by water cooling.

[0035] Automatic mold opening: The fixed mold 100 and the moving mold 200 are opened by the mold opening device.

[0036] Manual feeding: Manually remove the prepared ultrafiltration membrane pack from the mold.

[0037] The ultrafiltration membrane pack of this utility model is integrally formed by overmolding injection molding, which seals and combines the end cap, reinforcing layer, isolation layer and membrane pack body through the overmolded shell and end cap, protecting the surface of the ultrafiltration membrane pack from contamination, simplifying the production and installation operation steps, facilitating the automation of pharmaceutical purification processes, and achieving the purpose of this utility model.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. An ultrafiltration membrane pack, characterized in that, The device includes an end cap and a membrane pack body. The end cap is disposed on the upper and lower sides of the membrane pack body. The membrane pack body includes several layers of filter components and several layers of screens. The filter components and screens are arranged alternately from top to bottom. An isolation layer is disposed on the upper and lower sides of the membrane pack body. The isolation layer and the end cap are fixedly connected to each other through a reinforcing layer. The end cap and the membrane pack body are fixedly connected to each other through an encapsulated shell and an end cap seal. The encapsulated shell and the end cap seal are integrally formed by encapsulation injection molding.

2. The ultrafiltration membrane packet of claim 1, wherein, The filtration assembly includes a filter membrane and a support layer, with the filter membrane disposed on the upper and lower sides of the support layer.

3. The ultrafiltration membrane packet of claim 1, wherein, The thickness of the filter assembly is 0.2-0.3 mm, and the filter assembly has at least 3 layers.

4. The ultrafiltration membrane packet of claim 1, wherein, The thickness of the screen is 0.15-0.25 mm, and the screen has at least one layer.

5. The ultrafiltration membrane packet of claim 1, wherein, The thickness of the isolation layer is 0.2-0.4 mm.

6. The ultrafiltration membrane packet of claim 1, wherein, The thickness of the reinforcement layer is 0.8-2.0 mm.

7. The ultrafiltration membrane packet of claim 1, wherein The thickness of the end cap is 2.5-4.0 mm.

8. The ultrafiltration membrane packet of claim 1, wherein, The thickness of the rubber-coated outer shell is 4.5-6.0 mm.

9. The ultrafiltration membrane packet of claim 1, wherein, The thickness of the end cap seal is 4.5-5.5 mm.

Images