[1]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(No.6(471-564)):548-552.
 LI Shu-xun,XU Deng-wei,and BA Qiao-huan.Experimental study on the saturated vapor pressure type thermostatic bellows for steam traps[J].Journal of Shenzhen University Science and Engineering,2011,28(No.6(471-564)):548-552.
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饱和蒸汽压式波纹管疏水阀热动元件实验研究()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第28卷
期数:
2011年No.6(471-564)
页码:
548-552
栏目:
环境与能源
出版日期:
2011-11-20

文章信息/Info

Title:
Experimental study on the saturated vapor pressure type thermostatic bellows for steam traps
文章编号:
1000-2618(2011)06-0548-05
作者:
李树勋12徐登伟1把桥环1
1)兰州理工大学石油化工学院, 兰州 730050
2)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
Author(s):
LI Shu-xun12XU Deng-wei1and 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
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
Keywords:
thermal power engineeringthermodynamicsthermostatic bellowssaturated vapor pressuresteam trapthermodynamic modelVirial coefficients
分类号:
TQ 013.1;TK 269.1
文献标志码:
A
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.
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 well with the theoretical analysis.The results show that the elongation Δh of the saturated vapor pressure type thermostatic bellows is monodrome function of phase transition temperature T,and relationship between the elongation Δh and the phase change temperature t is an exponential function.The subcooled temperature of steam trap can be adjusted by using different mixture ratio,different bellows′ stiffness and different sufficient attire method.This paper establishes theoretical and experimental foundation for improving the performance of thermostatic bellows steam traps.

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备注/Memo

备注/Memo:
收稿日期:2010-02-03;修回日期:2011-10-08
基金项目:甘肃省自然科学基金资助项目(2008GS00561)
作者简介:李树勋(1973-),男(汉族),陕西省榆林市人,兰州理工大学副教授.E-mail:lishuxun@lut.cn
更新日期/Last Update: 2011-11-22