钻井泵的安全阀,除了本身存在工作不稳定以外,冬季还容易冻结,一旦蹩压就有使整个泵出现爆破的可能。为了解决这个问题,作者设计了安全逻辑控制回路,它可预防这类事故发生。 Drilling pump safety valve, in addition to its own instability outside the work, the winter is also easy to freeze, once the collapse there is the possibility of blasting the entire pump. To solve this problem, the authors designed a safety logic control loop that prevents such accidents.