Dissertation
Dissertation > Industrial Technology > Electrotechnical > Power generation, power plants > Power plant > Thermal power plants, thermal power stations

Thermal Performance Analysis of High-Back-Pressure Heating Reformation of Power Plant

Author LiQiBo
Tutor DuWenJing
School Shandong University
Course Power Engineering
Keywords turbine units reformation of high back pressure heating at BP condition circulating water heat supply
CLC TM621
Type Master's thesis
Year 2013
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This subject mainly researches the technique of the reformation of High-Back-Pressure Heating by circulating water., and the choose of the Operation mode. Analyses the existing unit to obtain The main economic data and Asset recovery cycle.Supplying heat by circulating-water in high back pressure condition is increasing the exhaust steam pressure in condenser which is decreasing vacuum and increasing circulating-water reform the condenser to the heating system. The cool water of the heating system is used in common as the condenser circulating-water. It can make full use of latent heat of vaporization to heat circulating-water and reduce the cold source loss to zero. Thus it can improve the cycle thermal efficiency of the unit. This method reduces the amount of heating extraction, increases the heating area without any increase in unit. Considering the short construction period and the remarkable economic benefit in many of the heating enterprise the method is put to use. Under the encouraging and facilitating of national energy conservation and emissions reduction policy, power plants reform condensing unit to heating unit if they meet the requirement of heating conditions. This has become an inevitable trend.Now Shiliquan power plant, Yantai power plant and Zouxian power plant have completed the reformation of power plant. They all greatly improve the heating efficiency. Zhangqiu power plant will carry out high back pressure circulating water heating renovation project in2012summer. And it will be used in2012-2013heating season.This dissertation analyze the plan of high back pressure reforming of Zhangqiu power plant, summarizes the characteristics of high back pressure reformation, calculate the thermal efficiency of heating, through the whole process of reformation of Zhangqiu power plant#2unit. In the complete reformation of the first heating season, I make the calculation of thermal efficiency analysis of the operating mode of several typical which are common and determine the most economic way of operation adjustment for the purpose provides the instance reference and adjust operation experience of power plant circulating water high-back-pressure reformation

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