插装阀的原理
各位大侠,小弟刚刚接触插装阀,有个问题不没明白 ,请大家指教。大家先看下图。
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
这个图,当油从A口到B口是截止的,但是当油从B口到A时,这个阀会打开,但是打开之后A口和B口的压力是不是一样的,A口和X口的压力是不是也一样的。是不是可以说B口和X口的压力是相同的,那这个阀是不是又关闭了?
就这个问题我不明白,请大家指教。谢谢。{:7_283:}
ab压力不一样 你说又关闭了,那pA 不又为0了吗;pB >0,阀不又打开了嘛。所以,只要pB >0,油流方向是B→A,阀就一直是打开的,不会出现不停的开关现象。BA间始终维持着一定的压力差,且pB>pA 。仔细想一下,应该可以找出它们之间的关系。 品的还挺仔细,2楼的答案不错也 本帖最后由 zzfjct 于 2015-2-2 16:25 编辑
这是一个单向阀。
即使开启状态pB也是大于pA的。只要有流量,阀的开度会自动调整以保证压差。
zzfjct 发表于 2015-2-2 11:33
你费解的原因是原图漏画了A→X(虚线控制油路)间的一个阻尼(节流)塞。
1,B→A开启时,pB大于pA一个开 ...
与您商榷一下:
pA>px是在动态的情况下。静态pA=px,与有无阻尼无关。若之间有换向阀,切断的情况下,那是另一说。
本帖最后由 cqzyouxiang 于 2015-2-2 21:55 编辑
回复zzfjct:更正一下:我所说的“静态”实际是指平衡态。阀开启的过程是动态,经过一个调整时间达到了平衡即为平衡态,我认为也可称为“静态”;同样,关闭的过程也是动态,结束为平衡态,谓之“静态”。这样该表述是否更合理些。真绕,好像掉到哲学里面讨论问题了。TMD,这就是较真的结果。
P进油时,活塞上腔受压面积大于下腔受压面积,所以打不开,反之就能打开 从B到A打开后,A口压力小于B口压力,因为经过任何阀口都是有压损的!
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