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["11. Об идеальномых газовых уравнениях

2020-10-05View Original

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"2 " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " " barcelona
Reply #22020-10-06
这个最好是在工艺规定参数范畴内的试试是可以的。提高入口压力,观察出口压力变化情况。涉及的因素较多,不是简单的等比例,及气态方程能算的准的。这类设备所规定的吸入压力及出口压力都是在各段冷却器的固有能力下的参数有关,才可以达到的产品压力、流量、温度的。如果是增加吸入压力,势必导致机组超过负荷,不可取。另外,出口压力低,与用户用量超标有关。供参考。
Reply #32020-10-07
8.5到8.7差0.2MPa,只要8.7不超过机组出口安全阀的定压值,原则上可以提压,因为正常情况下,压力波动的时候也会有个区间的。提压后,根据压缩比调整各级负荷就行了。如果一定要计算氢气量,根据目前的温度、压力,根据气体状态方程估算一下氢气量即可
Reply #42020-10-09
憋压到8.7MPa,末级压力比增大,其他级可能变化不大,压缩机功率增加。如果上述情况影响不大,进口可以不做调整。
Reply #52020-10-10
主要最近调节时发现压力调节的慢,无论升压还是降压。都达不到规定速度。而且每次都当调到位后,压力都会延升降趋势继续变化,还要往回调
Reply #62020-10-17
赞同2楼,系统压力和压缩机出口压力相关,系统压力一般低于压缩机出口压力,除非压缩机出口压力达不到系统压力的要求,可能会提高压缩机入口压力,这要取决于压缩机的工况是否满足条件。

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