摘要
Butterfly spring-relief valve, a crucial safety attachment of pressure vessel, is used to prevent pressuresystem from exceeding allowable limit value. Safe, expeditious and accurate calibration of safety valves is consequentlyof vital importance to safe and economic operation of generating units. NSH CALIBRATOR could complete, not only theon-line performance and parameter tests of safety valves within two to five seconds with opening pressure of safetyvalves and steam medium pressure automatically recorded, but also could complete the on-line adjustment of safetyvalves verified unqualified. It saves energy consumption, decreases noise pollution and improves accuracy and efficiencyof safety valve calibration.[
蝶形弹簧安全阀是锅炉压力容器的重要安全附件,用于防止系统压力超过允许的极限值。安全阀校验的安全、快捷、准确直接关系着机组的安全经济效益。NSH安全阀在线校验仪可在机组运行的情况下,仅需2～5秒时间即可完成对安全阀的在线性能检测和工作参数检测,也可对经检测不合格的安全阀进行在线整定,可以测量和记录安全阀的开启压力和安全阀所在位置系统介质压力等参数。使用NSH定压仪校验安全阀能减少能源消耗,降低噪音污染,提高安全阀校验整定的精确度和工作效率。
