设计制造锅炉压力容器时，计算安全阀排量是选用安全阀的主要依据。安全检验时，也经常遇到核算安全阀排放能力和流通截面的问题。因而，正确理解和运用安全阀排量计算公式，是合理选用安全阀及判定其可靠性的重要前提。 程达权、宋鸿铭提供的国外锅炉规范所采用的安全阀排量公式，是值得参考的技术资料，现于发表，供从事锅炉设计制造、运行管理及安全监察的人员参考。 Design and manufacture of boiler pressure vessel, the calculation of safety valve displacement is the main basis for the selection of safety valve. Safety inspection, often encountered in accounting safety valve discharge capacity and flow cross-section of the problem. Therefore, the correct understanding and application of safety valve displacement formula is a reasonable choice of safety valve and determine the reliability of the important premise. Cheng Daquan, Song Hong-ming provided by the boiler specifications used by the safety valve displacement formula is a reference for technical information is now published for the boiler design and manufacture, operation management and safety supervision of personnel reference.