一种阀门排放分析验证方法的研究

以稳压器快速卸压截止阀为例，研究一种饱和蒸汽下阀门排放量的分析验证方法。将小开度、低压差下的阀门排放试验数值与理论计算数值对比，表明偏差在可接受范围内；将此试验数值带入推导公式，得到全开度、全压差下的阀门排放量；与ANSYS分析的全开度下排放量对比，发现实际推导排量与理论计算排量偏差为2.73%。研究结果表明，在试验能力不足情况下，可以采用小开度低压差的排放试验结合理论推导的方式分析阀门饱和蒸汽下的排量。 

Research on Analytical Verification Method for Valve Discharge

In this paper, an analytical verification method for?valve discharge under saturated steam is studied by taking the pressurizing system stop valve as an example. Comparison of?the values?of valve discharge test under small opening and low pressure difference with the theoretical calculation value?shows that?the deviation?is?within the acceptable range. The value of?valve discharge under full opening and full pressure difference?is obtainedby putting the test values into?the equation deduced.?Comparingn?it with the value of?valve discharge by ANSYS analysis under full opening, we can found that the deviation between the actual derived?discharge?and the theoretical calculation discharge?is 2.73%.?The results show that under the condition of insufficient test capacity, the discharge rate of saturated steam?by the valve?can be analyzed by coupling thedischarge test in small opening and low pressure difference with the theoretical derivation.