Quantitative Analysis of Operating Economical Performance by Valve Leakage in Bypass System

2019 5th International Conference on Energy Materials and Environment Engineering

能源学;生态环境科学

Zhang, Dongxing^1 ; Zhao, Yuzhu^1 ; Wu, Zhengfeng^1 ; Wu, Xi^1

Huadian Electric Power Research Institute Co. LTD., Hangzhou, Zhejiang, China^1

关键词: Bypass systems;    Control valves;    Heat absorption;    Internal leakage;    Medium pressure;    Operating economy;    Thermal economy;    Valve leakage;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/295/3/032091/pdf
DOI  :  10.1088/1755-1315/295/3/032091

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

In this paper, the influence of steam leakage of the control valve in bypass system on unit operating economy is analysed. Through quantitative analysis, the formulas for calculating the influence of the steam leakage of control valves in high-pressure, medium-pressure and low-pressure bypass systems on the parameters of unit work and heat absorption are obtained. In the end, combined with the design data, the thermal economy of 1000MW double reheat unit is analyzed in view of the internal leakage of control valve in high-pressure, medium-pressure and low-pressure bypass system.