1　引言目前 ,美国和日本等先进国家均采用专门的调试工具———液压千斤顶进行全量型安全阀定砣试验 ,即先将锅炉系统压力升至整定压力的 50 %～ 80 %,稳压后 ,由液压千斤顶补充其余的压力。这样既增加了安全性 ,又缩短了时间 ,减少了能量消耗。我公司 80年代末从日本引进的全 1 Introduction At present, the United States and Japan and other advanced countries are using special debugging tools --- hydraulic jacks for full-scale safety valve set the test, that is, the first boiler system pressure rose to 50% to 80% of the set pressure, after the regulator , Replenished by the hydraulic jack the rest of the pressure. This not only increases the safety, but also shortens the time and reduces the energy consumption. My company from the late 1980s introduced from Japan