| 饱和蒸汽压式波纹管疏水阀热动元件实验研究 |
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| 引用本文： | 李树勋,徐登伟,把桥环.饱和蒸汽压式波纹管疏水阀热动元件实验研究[J].深圳大学学报(理工版),2011,28(6):548-552. |
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| 作者姓名： | 李树勋 徐登伟 把桥环 |
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| 作者单位： | 1. 兰州理工大学石油化工学院,兰州730050;兰州理工大学机械工业泵与特殊阀门工程技术研究中心,兰州730050
2. 兰州理工大学石油化工学院,兰州,730050 |
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| 基金项目： | 甘肃省自然科学基金资助项目 |
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| 摘 要： | 针对液体膨胀式波纹管蒸汽疏水阀排量不稳定、漏汽率高等问题,分析波纹管热动元件的热工特性.基于Riedel蒸汽压方程和气液平衡方程,建立饱和蒸汽压式波纹管热动元件的热力学模型,设计相应实验系统,进行不同参数下的实验研究.结果表明,饱和蒸汽压式波纹管热动元件伸长量是相变温度的单值函数,近似呈指数关系;采用不同混合比、刚度及填充方式,可调节疏水阀的排水过冷度.
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| 关 键 词： | 热能动力工程 热力学 波纹管热动元件 饱和蒸汽压 蒸汽疏水阀 热力模型 维里系数 |
Experimental study on the saturated vapor pressure type thermostatic bellows for steam traps |
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| LI Shu-xun,XU Deng-wei,BA Qiao-huan.Experimental study on the saturated vapor pressure type thermostatic bellows for steam traps[J].Journal of Shenzhen University(Science &engineering),2011,28(6):548-552. |
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| Authors: | LI Shu-xun XU Deng-wei BA Qiao-huan |
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| Affiliation: | LI Shu-xun1,2,XU Deng-wei1,and BA Qiao-huan1 1)School of Petrochemical Engineering Lanzhou University of Technology Lanzhou 730050 P.R.China 2)Engineering and Technological Research Center of Machinery Industrial Pump and Specialty Valves,Lanzhou University of Technology Lanzhou 730050 P.R.China |
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| Abstract: | In view of the instabilities of displacement and high steam leakage rate for the liquid-expansion type thermostatic bellows steam traps,thermodynamic characteristical of thermostatic bellows was analyzed.Based on the Riedel equation and the vapor-liquid equilibrium equation,thermodynamic model of the saturated vapor pressure type thermostatic bellows was set up,corresponding experimental system was designed,and experimental studies with different parameters was carried out.The experimental results agree wel... |
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| Keywords: | thermal power engineering thermodynamics thermostatic bellows saturated vapor pressure steam trap thermodynamic model Virial coefficients |
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