浅谈蒸汽冷却器下端差对设计的影响及系统优化  

A Brief Analysis for the Steam Cooler's DCA Influence on Design and System Optimization

作　　者：臧传奇[1] 石乾宇 蒋宇[1] 

机构地区：[1]哈尔滨锅炉厂有限责任公司,黑龙江哈尔滨150046

出　　处：《电站辅机》2016年第2期1-3,12,共4页Power Station Auxiliary Equipment

摘　　要：让汽轮机的部分抽汽,先经过3号高压加热器的外置蒸汽冷却器后,再进入3号高加内,利用此类加热装置,可提高机组的换热效率。蒸汽冷却器出口蒸汽温度的设定,对蒸汽冷却器及3号高压加热器的设计方案有很大的影响,选定合理的蒸汽出口温度,才能使蒸汽冷却器和高压加热器安全经济地运行。Part steam of the turbine shall be flew into high pressure heater No. 3 （HP-3） after through the external steam cooler of high pressure heater No. 3 （HP-3）, which can increase the efficiency of heat transfer. The temperature of Steam flows out of the steam cooler has a great effect on the design of steam cooler and HP-3, so a reasonable temperature and well design of steam cooler and HP can make the HP system safe and economic.

关 键 词：蒸汽 冷却器 下端差 卡诺循环 逆流 泄漏 振动 优化 

分 类 号：TM621.2[电气工程—电力系统及自动化]