A positive pressure suction gun leakage rate detection method, device, equipment, medium and product
By obtaining the measured positive pressure standard leak rate and background leak rate of the helium mass spectrometer leak detector, calculating the correction coefficient and calibrating it, the problem of quantitative measurement in helium mass spectrometry detection was solved, and more accurate leak rate measurement was achieved.
CN122108473APending Publication Date: 2026-05-29HUANENG SHANDONG SHIDAOBAY NUCLEAR POWER CO LTD
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Patent Information
- Authority / Receiving Office
- CN Β· China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HUANENG SHANDONG SHIDAOBAY NUCLEAR POWER CO LTD
- Filing Date
- 2026-01-28
- Publication Date
- 2026-05-29
AI Technical Summary
Technical Problem
Existing helium mass spectrometry detection methods cannot quantitatively measure leakage and lack effective calibration methods.
Method used
By obtaining the measured positive pressure standard leak rate and background leak rate of the helium mass spectrometer leak detector, the correction coefficient is calculated, and the measured leak rate is calibrated using the correction coefficient to obtain the calibration leak rate of the system under test.
Benefits of technology
Error compensation for the helium mass spectrometer leak detector was achieved, resulting in more accurate and meaningful leak rate values.
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Abstract
The present application relates to the technical field of leakage detection, and discloses a positive pressure suction gun leakage rate detection method, device, equipment, medium and product, comprising: obtaining a measured positive pressure standard leakage rate obtained by detecting a positive pressure standard leak hole by a helium mass spectrometer leak detector and a background leakage rate obtained by detecting ambient air; determining a correction coefficient of the helium mass spectrometer leak detector according to the measured positive pressure standard leakage rate, the background leakage rate and a standard leakage rate of the positive pressure standard leak hole; obtaining a measured leakage rate of a system to be detected, which is obtained by detecting the leakage rate of the system to be detected by the helium mass spectrometer leak detector; and calibrating the measured leakage rate by using the correction coefficient and the background leakage rate to obtain a calibrated leakage rate of the system to be detected. The present application obtains the correction coefficient of the helium mass spectrometer leak detector by obtaining the measured positive pressure standard leakage rate and the background leakage rate, and calibrates the measurement value of the system to be detected by the helium mass spectrometer leak detector according to the correction coefficient, so that the calibrated leakage rate of the system to be detected with quantitative judgment value is obtained.
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