燃气轮机技术
燃氣輪機技術
연기륜궤기술
GAS TURBINE TECHNOLOGY
2014年
4期
60-64
,共5页
燃气轮机%气封%复环%动静叶%节能
燃氣輪機%氣封%複環%動靜葉%節能
연기륜궤%기봉%복배%동정협%절능
gas turbine%air seal%retaining ring%turbine blade%energy-saving
针对PG9171E型燃气轮机的压气机排气通流部分和透平动静叶实施节能改造的分析和研究，将原有的燃气轮机压气机排气内缸蜂窝式气封、＃2轴承前后迷宫式气封更换为新型刷式气封。同时，将透平一级复环更换为可磨涂层结构，三级动静叶更换为全三维结构。改造后的燃气轮机漏气量大幅减少，机组整体效率和运行性能得到显著提高。本措施对同类型燃气蒸汽联合循环机组的气封、复环、动静叶节能改造具有较好的借鉴意义。
針對PG9171E型燃氣輪機的壓氣機排氣通流部分和透平動靜葉實施節能改造的分析和研究，將原有的燃氣輪機壓氣機排氣內缸蜂窩式氣封、＃2軸承前後迷宮式氣封更換為新型刷式氣封。同時，將透平一級複環更換為可磨塗層結構，三級動靜葉更換為全三維結構。改造後的燃氣輪機漏氣量大幅減少，機組整體效率和運行性能得到顯著提高。本措施對同類型燃氣蒸汽聯閤循環機組的氣封、複環、動靜葉節能改造具有較好的藉鑒意義。
침대PG9171E형연기륜궤적압기궤배기통류부분화투평동정협실시절능개조적분석화연구，장원유적연기륜궤압기궤배기내항봉와식기봉、＃2축승전후미궁식기봉경환위신형쇄식기봉。동시，장투평일급복배경환위가마도층결구，삼급동정협경환위전삼유결구。개조후적연기륜궤루기량대폭감소，궤조정체효솔화운행성능득도현저제고。본조시대동류형연기증기연합순배궤조적기봉、복배、동정협절능개조구유교호적차감의의。
This paper analyses and discusses the energy-saving improvement of compressor steam flow section and the turbine impeller. It proposes the approach that replaces the original honeycomb gland and labyrinth gland with the new brush type air real on compressor exhaust cylinder and the second bearing, and then, the first stage of retaining ring is replaced to coating structure, the third stage of turbine blade is replaced to full three-dimensional structure.By this adjustment, steam leakage is greatly reduced, and the whole ther-mal efficiency and the performance are highly improved.This method brings out a good reference of energy-saving for the improvements of the same type turbine.
