CAJ | 학술논문

建立了双泵并联给水系统数学物理模型，针对旋启式止回阀关闭过程中形成的水锤进行编程计算，分析作用在止回阀阀板上的力矩以及阻尼扭簧力矩对关阀水锤的影响。结果表明：在双泵并联给水系统中，旋启式止回阀在关闭时会产生明显水锤，作用在阀板上的力矩对水锤的作用效果有一定影响，选择合适的止回阀阀板材料以及加装合适的弹簧可有效缓解水锤危害。
건립료쌍빙병련급수계통수학물리모형，침대선계식지회벌관폐과정중형성적수추진행편정계산，분석작용재지회벌벌판상적력구이급조니뉴황력구대관벌수추적영향。결과표명：재쌍빙병련급수계통중，선계식지회벌재관폐시회산생명현수추，작용재벌판상적력구대수추적작용효과유일정영향，선택합괄적지회벌벌판재료이급가장합괄적탄황가유효완해수추위해。
A mathematical-physics model of double pump parallel feed system was con-structed .The water hammer was precisely calculated ,which was formed in the closing process of swing check valve .And a systematic analysis was carried out to determine the influence of the torques from both valve plate and damping torsion spring on the valve closing induced water hammer . The results show that the swing check valve would distinctly produce the water hammer during the closing procedure in the double pump parallel feed water system .The torques of the valve plate can partly reduce the water hammer effect ,and implying appropriate materials of valve plate and appropriate spring can effectively relieve the harm of water hammer .