Checking of the safety valve functionality in relation to safety events
By recording and analyzing the position and pressure-time curves of the safety valve, combined with pressure sensor measurements, the problem of whether the solenoid valve is correctly triggered in a safety event is solved, ensuring the accuracy of the safety valve's functional assessment, extending equipment maintenance intervals, and improving safety.
CN115698570BActive Publication Date: 2026-06-02SAMSON AG
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SAMSON AG
- Filing Date
- 2021-05-27
- Publication Date
- 2026-06-02
Smart Images
Figure CN115698570B_ABST
Abstract
A method for checking the functionality of a safety valve (100) and a solenoid valve (140) for triggering the safety valve (100), as well as a method for checking the functionality of the corresponding device, is proposed. The safety valve (100) has a solenoid valve (140), which is used to drive a pressure relief pneumatic mechanism (130) in the event of a safety incident. First, a safety incident is triggered. The position curve of the valve component (110) is obtained and the time required until the safe position is reached is compared with a reference value. From this, it can be reliably inferred whether the safe position is caused by the solenoid valve (140) or the position regulator (120). The measurements of the pressure sensors (190, 195) can also be considered, allowing for extensive fault diagnosis when functionality cannot be guaranteed. Maintenance intervals can be optimized when the output of the check is positive.
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