钻井泥浆泵是钻井过程中的重要机械设备。随着石油开采的不断深入,人们对钻井泥浆泵性能的要求变得越来越高,冷循环系统是钻井泥浆泵的重要组成部分,针对提高泥浆泵活塞的质量和寿命,降低石油开采的成本的目的,本文提出了对冷循环系统进行改进,并进行了理论分析,验证了改进后的冷循环系统的有效性。 Drilling mud pump is an important mechanical equipment in drilling process. With the deepening of oil exploration, the performance of drilling mud pump is becoming more and more demanding. The cold circulation system is an important part of drilling mud pump. In order to improve the quality and life of mud pump piston and reduce the cost of oil exploration This paper proposes to improve the cold-cycle system and carry out a theoretical analysis to verify the effectiveness of the improved cold-cycle system.