回座压力(reseating pressure):安全阀排放后 随着系统压力的降低,阀瓣与阀座重新接触,阀 门开启高度为零,介质停止连续流出时安全阀入 口处的静压力。 对于电站类锅炉来说: 热水锅炉回座压力压降为起座压力的20%, 蒸汽锅炉回座压力压降为起座压力的10%, 一般控制在4%~7%。
... return orifice check valve 单向节流阀 return pressure of safety valve 安全阀回座压力 return valve 回流阀; 回路阀; 回水阀; 回油阀 ...
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介绍了安全阀回座压力校验装置的设计、参数的验算、数据的电脑采集处理。
This paper introduces the design, calculation of parameters, the collection and process of data by computer for the test equipment of setback pressure for safety valve.
通过实际应用,认为该装置达到了设计要求,满足了业主对安全阀回座压力校验的要求。
The equipment accords with the requirement of design and user of safety valve in practice.
从弹簧刚度、整定压力范围,讨论了针对安全阀同一口径,在整定压力和回座压力比较接近的情况下,弹簧的优化设计。
From spring rigidity and range of set pressure, spring optimize design to same diameter's safety valve at set pressure near blow-down pressure are discussed.
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