Method for determining corresponding relation between absolute filter precision and bubble breaking point

A technology of filtration accuracy and corresponding relationship, which is applied in the direction of measuring devices, instruments, etc., can solve the problems that the tested filter and filter element cannot be used normally, the test equipment is complicated, and the test cost is high, so as to simplify the test method, the method is feasible, and the implementation is easy. Effect
CN102944262AActive Publication Date: 2013-02-27BEIJING INST OF CONTROL ENG
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
BEIJING INST OF CONTROL ENG
Publication Date
2013-02-27

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Abstract

The invention discloses a method for determining the corresponding relation between absolute filter precision and a bubble breaking point. The method comprises the steps as follows: (1) aiming at a laminated filter; (2) determining the absolute filter precision of a filter disc by measuring a maximum depth value of a circulating channel on the filter disc; (3) simulating a practical using state of the filter disc through an experiment design; (4) measuring the bubble breaking point of the filter disc through a test; and (5) carrying out depth measurement and bubble breaking point measurement by selecting the filter discs with different maximum circulating channel depths, and determining the corresponding relation between the absolute filter precision and the bubble breaking point. According to the method, the characteristics of the laminated filter are fully utilized, the test can be repeated, the required test equipment is greatly simplified, the test cost is greatly reduced, and the test time is saved.
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Description

technical field

[0001] The invention relates to a method for determining the corresponding relationship between the filter's absolute filtration accuracy and the bubble breaking point, which is suitable for a laminated filter using a groove on a filter sheet as a filter flow channel. Background technique

[0002] Filtration accuracy is an important performance parameter of filter products. According to the definition, the absolute filtration accuracy is the diameter of the largest hard spherical particle that the filter can pass through under the specified experimental conditions. In the traditional absolute filtration accuracy test method, special glass beads are added to the test medium and passed through the tested filter, and the maximum particle size measured in the filtered medium is taken as the absolute filtration accuracy of the filter. This test is a destructive test. The process contaminates the filter itself, and excess material introduced during the test remain...

Claims

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