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Filtering assembly

A technology for filter components and heads, which is applied in semi-permeable membrane separation, chemical instruments and methods, membrane technology, etc., can solve problems such as insufficient discussion of head damage, and achieve the effect of suppressing deformation

Active Publication Date: 2015-02-25
ASAHI KASEI MEDICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, in the past filter assemblies, the damage of the head under the action of internal pressure has not been fully discussed.

Method used

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Experimental program
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Embodiment Construction

[0025] Hereinafter, the configuration of the present invention will be described in detail based on an example of an embodiment shown in the drawings. exist figure 1 etc., shows an embodiment of the filter assembly 1 of the present invention. The filter assembly 1 of this embodiment has a main body case 2, a head 3, a fixing nut 4, an O-ring 5, and the like.

[0026] The main body case 2 is formed as a cylindrical case for accommodating a separation membrane (here, for example, a hollow fiber membrane 6 ), and is formed at both ends in the axial direction (direction along the central axis of the cylindrical case) in this embodiment. Opened cylindrical shape. The head portion 3 is attached to both openings 21 with an O-ring (sealing member) 5 interposed therebetween. In addition, ports 103 and 104 through which liquid to be filtered and the like pass through are provided on the outer peripheral surface of the main body case 2 . The ports 103 and 104 are connected to a liqui...

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PUM

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Abstract

The present invention provides a filtering assembly which can suppress deformation of a head and damage caused by the deformation in the case of a higher pressure in the assembly. In the filtering assembly, a fixing nut (4) has a deformation suppressing part (41a) used for suppressing the deformation of the head (3) in the case that an inner pressure of the filtering assembly (1) exceeds an atmospheric pressure, the deformation suppressing part (41a) presses the following parts on the head (3), i.e., at least a part of a pressure projection part which is acted by the inner pressure of the filtering assembly (1) along an axis direction. In the pressure projection part, a ratio S2 / S1 is within a range from 25% to 300%, wherein the S2 represents a projected area of a pressing part which is pressed by the deformation suppressing part (41a), and the S1 represents a projected area of an unpressing part which is not pressed by the deformation suppressing part (41a).

Description

technical field [0001] The invention relates to a filter assembly. More specifically, the present invention relates to an improvement of a filter unit having a structure in which a head is attached to an opening of a cylindrical main body case. Background technique [0002] A filter module using a separation membrane is used, for example, in medical fields such as blood purification therapy in which predetermined components are removed from blood to purify blood, or in the field of water purification treatment. [0003] As this kind of filter module, for example, it has a structure in which hundreds to tens of thousands of hollow fiber membranes are accommodated in the case, so a structure in which the head is detachable from the opening of the main body case such as a cylindrical shape is used (refer to Patent No. Literature 1, 2). In addition, there is also an assembly in which an O-ring is interposed between the main body case and the head in order to have a watertight ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D63/02B01D63/00
Inventor 荒牧昌作岩本健太郎
Owner ASAHI KASEI MEDICAL CO LTD