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2019-11-29View Original

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Reply #22019-11-29

"A varpe de减压阀和自力式调节阀阀前压力变化，阀后压力能否稳定“，

Reply #32019-11-29

Reply #42019-11-29

"De acordo com minha compreensão：减压阀是根据设计时的前后压差和流量计算弹簧的预紧力，当阀前压力恒定时A如果阀后压力发生变化弹簧会带动阀瓣运动最终使阀后压力恢复到设定值A如果阀前压力变化比如阀前压力增大则阀后压力肯定也会增大（虽然不是增加相同的的数量）如果不去人工调整弹簧的预紧则阀后压力是无法自动恢复到设定值的A自力式调节阀虽然结构与减压阀不同但基本原理相同仍然是阀前、阀后和弹簧预紧力三者平衡决定工作状态A如果阀前压力不变阀后压力变化（阀后取压的调节阀）同样可以自动恢复到设定值A但如果阀前压力变化阀后压力必然跟随其变化如果不调整弹簧的预紧则是无法自动恢复到设定值的A减压阀和自和式调节阀其实原理基本相同只是结构形式有些不同调压精度不同不知道我的理解是否正确请高手指点 "A

Reply #52020-02-11

"减压阀不会。我们气瓶上接接减压阀调节好出口出口一个很低的压力A气瓶内压力从15Mpa一直下降到 1Mpa出口出口出口出口出口压力都能稳定。前提是减压阀没有坏。如果坏可能没有减压效果 "A

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