Deep filtering membrane bag

By designing two supporting convex rings in the deep filter membrane package, forming a cavity and blocking the encapsulated material twice, the reduction of filtration area and runner congestion caused by the diffusion of the encapsulated material is solved, and a more efficient filtration rate and yield is achieved.

CN222658037UActive Publication Date: 2025-03-25HANGZHOU COBETTER FILTRATION EQUIPMENT CO LTD
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Patent Information

Application Number
CN202323576178.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2023-12-27
Publication Date
2025-03-25
Estimated Expiration
2033-12-27

AI Technical Summary

Technical Problem

When the existing deep filter membrane wrap is injected with the glue wrap material, the glue wrap material is prone to diffuse through the tiny gap between the dense part and the support ring, resulting in a decrease in the filter area of ​​the filter part and congestion in the runner, thereby reducing the filtration rate.

Method used

Two supporting convex rings are designed, and a certain cavity is formed between the first supporting convex ring and the second supporting convex ring to accommodate part of the molten convex material, and the convex material is blocked twice through a tightly fit structure to prevent it from entering the filter area.

Benefits of technology

Effectively prevent the glued material from entering the filter area, ensure the area of ​​the filter area and the unblocking of the runner, and improve the filtration rate and finished product yield.

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Abstract

The utility model discloses a deep filtering membrane bag which comprises two end plates, a deep filtering medium clamped between the two end plates and a packaging part wrapping the peripheries of the two end plates, and first supporting convex rings and second supporting convex rings are arranged on the inner surfaces, facing the deep filtering medium, of the two end plates at intervals. The first supporting convex rings are located on the outer sides of the second supporting convex rings, the first supporting convex rings on the two end plates are correspondingly arranged, the second supporting convex rings on the two end plates are correspondingly arranged, and through holes allowing liquid to flow through are formed in the area, defined by the second supporting convex rings, of each end plate. The part, clamped between the two first supporting convex rings, of the deep-layer filtering medium forms a first compact area, the part, clamped between the two second supporting convex rings, of the deep-layer filtering medium forms a second compact area, and the area, located on the inner sides of the second supporting convex rings, of the deep-layer filtering medium forms a filtering area. The deep filtering membrane bag disclosed by the utility model can ensure the smoothness of an internal flow channel and the filtering area of a filtering area, so that the filtering rate is ensured.
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