| 由喷管临界压力比确定安全阀临界压力比的计算公式 |
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| 引用本文： | 周国发,李鸣,屈娅嘉.由喷管临界压力比确定安全阀临界压力比的计算公式[J].南昌大学学报(工科版),2000,22(2):72-76. |
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| 作者姓名： | 周国发 李鸣 屈娅嘉 |
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| 作者单位： | 南昌大学环境与化学工程学院,江西,南昌,330029 |
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| 摘 要： | 在安全阀临界压力比分析研究的基础上，提出了一种确定安全阀临界压力比的计算公式，安全阀临界压力比主要受喷管临界压力比和阀瓣流阻系数的影响。由于管临界压力比可确定安全阀临界压力比。由于阀瓣流阻系数过大，安全阀一般处于亚临界流动状态。
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| 关 键 词： | 安全阀 临界压力比 计算公式 管道 |
| 文章编号： | 1006-0456(2000)02—0072—05 |
| 修稿时间： | 1999-03-25 |
The Formula of the Critical Pressure Ratio for Safety Valve by the Critical Pressure Ratio for Nozzle |
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| Zhou Guofa,Li Ming,Qu Yajia.The Formula of the Critical Pressure Ratio for Safety Valve by the Critical Pressure Ratio for Nozzle[J].Journal of Nanchang University(Engineering & Technology Edition),2000,22(2):72-76. |
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| Authors: | Zhou Guofa Li Ming Qu Yajia |
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| Affiliation: | Zhou Guofa
,Li Ming
,Qu Yajia
;(Environmental and Chemical Engineering School, Nanchang University, Nanchang 330029, China) |
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| Abstract: | The formula of the critical pressure ratio for safety valve is proposed.The experiment results show that the critical pressure ratio for safety valve is affected by the critical pressure ratio for nozzle and the resistance coefficient for valve disc,safety valve is always in sub-critical flow state because the resistance coefficient of valve disc is greater. |
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| Keywords: | safety valve critical pressure ratio formula |
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