300MW汽轮机组热力性能计算摘要：节能的核心是中国能源战略和政策。
火力发电厂是能源供应的中心和资源消耗和环境污染和温室汽体排放、的主要部门，提高经济效益的电厂设备运行的经济性和可靠性,减少污染物的排放,已成为全球关注的重大问题。
热效率代表了火力发电厂热能源利用、功能转换技术的进步和运作的经济性,是电厂的基础经济评价。
合理的计算和分析燃煤电厂的热效率是基于保证机组安全运行的基础上,是提高作业水平和科学管理有效手段。
火力发电厂的设计在国内和国外技术改造、运行优化和研究大型火力发电厂性能监视、运行偏差分析等都需要热力系统热平衡的计算,计算出热经济指标作为决策的依据。
所以发电厂热力系统计算是关键技术来实现上述任务,直接反映了经济效率的协调,针对发电厂节能是有重要意义的。
本文设计的300MW凝汽式汽轮机。
了解其工作原理及其它组件的工作原理。
设计这个汽轮机每个热力系统,并使用计算机绘制图纸。
最后,热力系统设计为经济指标的计算,分析温度、压力等参数如何影响效率。
本设计采用了三种计算方法——常规计算方法、简捷计算、等效热降法。
关键词：节能、热经济性分析、热力系统300MW Steam Turbine Thermal PerformanceCalculationAbstract：Energy conservation is the core of China's energy strategy and policy. Coal-fired power plant is the center of the energy supply, improve the economic benefit of power plant equipment operation and reliability, reduce pollutant emissions, has become the world focus on the major issue.Represents the thermal power plant economics of energy use, advanced thermal conversion technology functions and running economy is the thermal power plant based on economic evaluation. Rational calculation and analysis of the Thermal Power Plant is to increased operating and running an effective means of scientific management based on ensure the safe operation of generating units. Power plant design, technological innovation, optimization and operation of large thermal power plants at home and abroad Performance Monitoring, running deviation analysis require thermal power plant system on a detailed calculation of heat balance. Thus the plant system calculation is an important technique to achieve these tasks based on and it is a direct reflection of the economic benefits of the whole plant. It is important to energy power plant.This article aims to design a 300MW Condensing Steam Turbine. Firstly, I understand the components of the turbine and its working principle. Secondly, design the turbine of the thermal system and hand-drawn maps of each system. Finally, I design thermal system on the economic index calculation,and analyze how parameters such as temperature and pressure affect the efficiency. This design uses three methods conventional method, simple calculation, the equivalent enthalpy drop method.Keywords: energy saving；economic analysis of thermal thermal system目录中文摘要 (i)英文摘要..................................................................................................................... i i 1 绪论.. (1)1．1毕业设计的目的 (1)1．2国内外研究综述 (1)2 300MW汽轮机组结构与性能 (3)2.1汽轮机工作的基本原理 (3)2.2汽轮机各部分的工作原理及结构特点 (3)3 热力系统的设计 (7)3.1主、再热蒸汽系统 ........................................................... 错误！未定义书签。
