Precision filter sealing shell and using method thereof

Abstract

The invention discloses a precision filter sealing shell, which comprises a filter barrel-shaped shell body, wherein the filter barrel-shaped shell body comprises a barrel-shaped central part and headparts located at the two ends of the barrel-shaped central part, the diameter of the head parts is larger than that of the barrel-shaped central part, the strength of the shell body wall of the headpart is greater than that of the shell body wall of the barrel-shaped central part, a circle of strip-shaped groove is distributed on the inner wall of the head part, the strip-shaped groove is parallel to the longitudinal axis of the barrel-shaped shell body of the filter, the strip-shaped groove and the longitudinal axis are parallel to each other, and a plurality of thin grooves are formed in the inner wall of the barrel-shaped central part and evenly formed in the surface of the inner side of the barrel-shaped central part. According to the invention, the sealing shell of the precision filter is good in sealing effect, double-insurance sealing of first sealing and second sealing is adopted, and the problem of liquid leakage is effectively solved.

Description

technical field [0001] The invention belongs to the technical field of filters, and in particular relates to a precision filter sealing shell and a use method thereof. Background technique [0002] During the use of existing precision filters, the samples to be processed contain a large amount of impurities such as rust, solid particles, dust, oil, etc., so it is most likely to cause loss of the precision filter element or even directly lead to the scrapping of the precision filter element . [0003] Part of the precision filter adopts an integrated package structure. If the parts of the filter are damaged or reach the service life, the precision filter will be scrapped as a whole; another part of the precision filter adopts a detachable structure. During the process, the shell can be disassembled first, the filter element can be disassembled and the damaged or scrapped filter element can be replaced. However, detachable precision filters are usually packaged in a flange-t...

AI Technical Summary

Problems solved by technology

To sum up, the cost of various materials and processing for the fastening method of the flange and the pull buckle is high, accounting for about 30% of the total cost, and metal materials are wasted, the equipment is heavy, and the sealing effect is not good, which is prone to night leakage

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