燃气轮机热管型进气冷却系统的设计及性能分析.pdfVIP

　燃气轮机 　热管型进气冷却系统的设计及性能分析 王松岭, 张莉娜, 张学镭 华北电力大学能源与动力工程学院, 河北 保定　071003 [　　　] 　针对燃气-蒸汽联合循环(联合循环)机组出力随环境 度升高而下降的问题,设计了1 种新型燃气轮机(燃机)进气冷却系统, 即利用热管型溴化锂吸收式制冷机(溴冷机)回 收余热锅炉排烟余热制冷,以降低燃机进气 度。对余热锅炉排烟(简称排烟)流量及 度变化对联合循环机组性能影响的分析表明, 加装热管型溴冷机的燃机进气冷却系 统可使燃机进气 度下降10 ～15 ℃,联合循环机组年净增发电量约20 000 MW ·h。 在环境 度 一定的条件下, 随着排烟 度的增加,燃机进气 降幅度也不断增加。 [　　] 　燃气轮机;联合循环;进气冷却;余热利用;热管;溴化锂吸收式制冷机 [] 　TK472 [] 　A [ ] 　1002-3364 (2010)09-0039-06 [DOI ] 　10 .3969/j .issn .1002-3364.2010 .09.039 DESIGN OF HEAT-PIPE TYPE INLET AIR COOLING SYSTEM FOR GAS TURBINES AND PERFORMANCE ANALYSIS THEREOF WA NG Songling,ZHANG Lina,ZH ANG Xu l i Coll g of En rgy and Pow r Engin ring, North China El ctric Pow r Univ rsity, Baoding 071003, H b i Provinc , P RC Abstract:Dir cting against th probl m of output capacity of th gas-st am combin d cycl unit d cr a- s s as th ambi nt t mp ratur ris s,a n w typ inl t air cooling sy st m of said unit has b n d sign d by using th h at pip typ lithium bromid absorption chill r to r cov r th r sidual h at of flu gas discharg l from th w ast h at boil r for r frig ration,so as to d cr as lnl t air t mp ratur for nt - ring into th gas turbin .Th analy sis of influ nc of th flow rat and t mp ratur variation for flu gas discharg d from th w ast h at boil r upon p rformanc of th combin d cy cl unit show s that th inl t air cooling sy st m quipp d w ith bromid chill r can mak th inl r air t mp ratur of th said gas turbin to d cr as 10 ～15 ℃, th n t annual l ctricity g n ration incr as s 20 000 M W ·h.Und r condition of constant ambi nt t mp ratur , along w ith incr asing of th discharg d flu gas t mp ra- tur , th t mp ratur drop rang of th inl t air nt ring into th g