电厂安全阀排汽管道热力计算及应用

Thermodynamic calculation of steam discharging pipe of safety valve in power plant and its application

介绍了排汽管道布置形式及排放过程,重点论述了开式、闭式排放系统的热力计算方法。在ASME B31.1计算方法的基础上,采用汽轮机管道设计技术规定的方法求解临界质量体积比,2种计算方法的结合使得计算精度高,可操作性强,在实际应用中效果明显。

The layout form of the steam discharging pipe and the discharge process were introduced.The thermodynamic calculation methods of open-type and closed-type discharge systems were expounded emphatically.Based on the calculation method recommended in ASME B31.1,the methods specified in code for piping design of steam turbine were adopted to solve the critical mass volume ratio.The combining of the two calculation methods can give high calculation accuracy,better operability and obvious effects in practical application.