摘要
我国天然气管道用的PGT25+型燃气轮机存在设计缺陷,冬季运行时易产生结霜问题,因此需研制防霜装置。文章研究了燃气轮机进气系统结霜热力学过程,计算了典型工况下燃气轮机进气系统(过滤器、消音器和进口导叶处)的温降值,分析了压降、相对湿度对结霜过程的影响,介绍了自主研制的抽气式进气加热装置以及其应用于消除燃气轮机进气系统结霜的效果。该装置操作界面友好,抽气量小于2%,功率损失小于7%,应用效果良好。
PGT25＋ gas turbines used in domestic pipelines have some design faults and could cause frosting problem in winter.Hence an anti-frosting device is needed to develop. This paper studies the frosting thermodynamical mechanism of gas turbine inlet system,calculates the temperature drops under typical conditions of gas turbine inlet system including filter,silencer and inlet guide vane,and analyzes the influences of pressure drop and relative humidity on frosting course. The paper illustrates the self-developed suction heating device and its eliminating frosting effect for gas turbine inlet system. Because of its friendly operation interface,less than 2% suction rate and less than 7%power loss,the good application effect is obtained. The research result has a widely popularization value.
出处
《石油工程建设》
2014年第6期41-44,共4页
Petroleum Engineering Construction
关键词
燃气轮机
进气系统
结霜
加热装置
研制
温降
相对湿度
gas turbine
inlet system
frosting
heating device
R＆D
temperature drop
relative humidity
