【摘要】 基于安全阀开启特性的智能化校验方法,通过对2个相同规格压力变送器数据的归一化处理和误差判别,保证采集的安全阀试验压力值准确可信,达到了低冗余度、高可靠性。制定了智能化校验方法的运行程序步骤,并根据全启式和微启式安全阀的不同开启特性制定整定压力评价准则,该准则建立在数学模拟的基础上,能准确判断安全阀的合格整定压力,提高安全阀的校验效率,保证校验的准确性。更多还原

【Abstract】 The intelligent calibration method based on the switching characteristics of a safety valve makes normalization processing and error detection on the data of two pressure transmitters with the same specification to ensure that the acquired test pressure value of the safety valve is accurate with low redundancy and high reliability.It sets procedures for the intelligent calibration method and makes pressure evaluation criterion based on the different switching characteristics of full lift safety valve and low lift safety valve.Based on the mathematical modeling,this principle could judge qualified setting pressure of safety valve accurately and improve the check efficiency of the relief valve to ensure the accuracy of the calibration.更多还原