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安全阀作为防超压安全装置,应用十分广泛。安全阀的开启压力整定校验准确与否,对承压设备或工艺装置的正常运行起着十分重要的作用。若未到设定压力安全阀提前动作,会造成工作介质大量排放,而直接影响正常操作和物料浪费;若超过设定压力安全阀仍不动作,会直接威胁生产安全,甚至因设备超压破裂而引发严重事故。为了确保安全阀的可靠工作,我国已规定了安全阀定期校验制度及性能试验规范等要求。
Safety valve as anti-over-pressure safety devices, a wide range of applications. Safety valve opening pressure setting calibration accuracy or not, the pressure equipment or process equipment for the normal operation plays a very important role. If the set pressure relief valve does not move in advance, it will cause a large amount of discharge of the working medium, which will directly affect the normal operation and material waste. If the pressure exceeds the set pressure, the safety valve will not move and will directly threaten the production safety. And cause serious accident. In order to ensure the reliable operation of the safety valve, our country has stipulated the regular checkout system of safety valve and the performance test specification and other requirements.