CAJ | 학술논문

目前压缩机气阀的设计大多数是按照已有设备进行经验设计，定量设计研究比较少。本文结合使用CFD软件模拟的方法对压缩机气阀弹簧刚度进行优化设计。文中首先对压缩机的吸气过程进行了三维的瞬态模拟，其中阀片运动规律由编写的UDF函数定义，最终得出气缸内部的流体状态以及气阀的运动规律，结果更加实际准确。在此基础上对一组弹簧刚度进行模拟，得出气阀运动规律与弹簧刚度的关系，在兼顾压缩机的寿命与效率的情况下，得出最优的弹簧刚度。这对于压缩机气阀的设计等具有指导性的意义。
목전압축궤기벌적설계대다수시안조이유설비진행경험설계，정량설계연구비교소。본문결합사용CFD연건모의적방법대압축궤기벌탄황강도진행우화설계。문중수선대압축궤적흡기과정진행료삼유적순태모의，기중벌편운동규률유편사적UDF함수정의，최종득출기항내부적류체상태이급기벌적운동규률，결과경가실제준학。재차기출상대일조탄황강도진행모의，득출기벌운동규률여탄황강도적관계，재겸고압축궤적수명여효솔적정황하，득출최우적탄황강도。저대우압축궤기벌적설계등구유지도성적의의。
Currently, the design of reciprocating compressor valve still lacks quantitative study .The paper focuses on the opti-mization design of valve spring stiffness with CFD method .A three-dimensional transient model of reciprocating compressor was exposed, and the motion of valve plate was governed by user-defined function (UDF), thus more accurate results of the flow field in the cylinder and the motion of the valve plate were obtained .Then, a group of spring stiffness was applied to the model in or-der to find out the optimal spring stiffness to arrive at the best compromise between the efficiency and the life of reciprocating compressor.And the research should have instructive significance for the future design of compressor valve .