High-efficiency air filter scanning leak-detection device and method

Abstract

Disclosed is a high-efficiency air filter scanning leak-detection device and method. The high-efficiency air filter scanning leak-detection device comprises an air duct system, an air flow conversion device, a detection platform, a two-dimensional scanning mechanism, a detection system and a control system. According to the high-efficiency air filter scanning leak-detection device and method, leak points can be accurately and rapidly positioned, the distribution of the leak points are timely displayed through a three-dimensional graph, and the standard requirements are met.

Description

technical field [0001] The invention relates to a high-efficiency / ultra-high-efficiency air filter, in particular to a high-efficiency air filter scanning leak detection device and a leak detection method. Background technique [0002] With the increase of requirements for clean environment in various industries, the detection of filters is becoming more and more stringent. For high-efficiency / ultra-high-efficiency filters used in industries such as semiconductors and biopharmaceuticals, the most stringent most penetrating particle size (MPPS) method has been adopted internationally to meet the quality requirements of these high-tech filters for high-efficiency filters. Some such devices have already been arranged at present, but there are still many deficiencies. [Patent: High-efficiency and ultra-high-efficiency air filter filtration efficiency detection system, application number 200610014363.6, publication number CN 1895732A] discloses a high-efficiency\ultra-high-effic...

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Problems solved by technology

[Article: MSP430-based design of high-efficiency filter leak detection, Suzhou University Journal (Engineering Edition), Volume 31, Issue 2, April 2011] The detection system mentioned in the scanning sampling head collects a set of data every time , it is necessary to stop first, transmit the sampling data to the host controller, and then continue to scan for leak detection. The disadvantage is that the efficiency of scan leak detection is greatly reduced.

[Article: Development of an automatic scanning leak detection system for high-efficiency / ultra-high-efficiency filters, "Clean and Air Conditioning Technology" 2013 Issue 02] The two-dimensional scanning platform used in it is similar to [Patent: A high-efficiency ultra-high-efficiency filter scanning test The two-dimensional scanning mechanism in the test bench, authorized announcement number CN2901295Y] is inconvenient to replace and compress the filter under test

The filter compression method used in the article is unscientific and prone to air leakage, which affects the test results

In addition, the data displayed during the scanning process is in the form of 1D and 2D graphics, and the human-computer interaction interface is not intuitive enough to directly reflect the leakage degree of each point of the filter under test in real time.

In addition, the scanning strategy mentioned in the article has low efficiency, which can be improved by improving the algorithm

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