A device and method for precisely detecting the degree of supercooling of a membrane chamber of a hydrophobic valve based on time domain feature analysis

Abstract

The present application relates to a kind of overcooling degree precision detection device and method of hydrophobic valve diaphragm based on time domain feature analysis, it is related to industrial fluid control test field, to solve the problem that existing test means cannot adapt to different stroke diaphragm, and it is susceptible to steam pressure fluctuation interference and lead to data distortion false problem.This device includes split type test main cabin, its top is equipped with precision fine adjustment detection component;The component is cooperated with the multistage sealing packing box by screw feed mechanism, under the premise of guaranteeing high temperature and high pressure dynamic seal, realize the micron level stroke adjustment of proximity switch probe relative to the diaphragm to be measured.This method includes constructing double threshold value anti-shake judging model based on action duration, after eliminating the false signal caused by fluid disturbance, the instantaneous temperature of inlet and drainage end is simultaneously latched, and then the dynamic overcooling degree of diaphragm is calculated.The present application realizes the intelligent precision detection of hydrophobic valve core element by the software and hardware cooperation of precision mechanical fine adjustment sealing structure and time domain anti-shake algorithm.

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