火电厂给水泵汽轮机排汽冷却系统的优化
Optimisation of Steam Turbine Exhaust Cooling System for Feedwater Pumps in Thermal Power Plants
吴甜1
作者信息
- 1. 霍州煤电集团吕梁山煤电有限公司,山西 方山 033100
- 折叠
摘要
以某火电厂600 MW发电机组为研究对象,介绍一种火电厂给水泵汽轮机排汽冷却系统优化方法.该方法主要在汽轮机排气尾端安装一个混合式冷却器,并调节冷却器进口水泵的扬程,在保证排气冷却处理效果的同时,降低汽轮机排气冷却处理成本.通过该优化方法的应用,可显著降低汽轮机热耗率与年标准煤消耗量,并提高火电厂的经济效益,将在1.1年左右改造成本回收,对现代火电厂运行具有重要意义.
Abstract
Taking a 600 MW generating unit of a thermal power plant as an example,a method of optimising the exhaust cooling system of the feedwater pump turbine of a thermal power plant is introduced.The method mainly installs a hybrid cooler at the exhaust tail end of the turbine and adjusts the head of the inlet pump of the cooler to reduce the cost of turbine exhaust cooling treatment while ensuring the effect of exhaust cooling treatment.Through the application of this optimisation method,the turbine heat consumption rate and annual standard coal consumption can be signifiicantly reduced,and the economic efficiency of the thermal power plant can be improved,and the transformation cost can be recovered in about 1.1 years,which is of great significance to the operation of modern thermal power plants.
关键词
火电厂/给水泵/汽轮机/排气/冷却系统Key words
feedwater pump/turbine/exhaust/cooling system引用本文复制引用
出版年
2024
NETL
NSTL
万方数据