热力发电
熱力髮電
열력발전
THERMAL POWER GENERATION
2015年
4期
78-81
,共4页
赵斌%赵利杰%李佩%卢闪%吕俊复
趙斌%趙利傑%李珮%盧閃%呂俊複
조빈%조리걸%리패%로섬%려준복
150 MW机组%低压省煤器%吸收式热泵%低温余热回收%热经济性
150 MW機組%低壓省煤器%吸收式熱泵%低溫餘熱迴收%熱經濟性
150 MW궤조%저압성매기%흡수식열빙%저온여열회수%열경제성
150 MW unit%low pressure economizer%absorption heat pump%low-temperature waste heat re-covery%thermal efficiency
针对电站低温烟气和乏汽余热的特点,提出了采用低压省煤器与第一类吸收式热泵集成回收低温余热的工艺方案,以某150 MW机组的额定纯凝(THA)和额定抽汽2种工况为基准分别对烟气、乏汽及系统进行余热回收计算,结果表明：采用低温余热回收工艺方案后,2种工况下,机组发电功率分别增加了2．37 MW,2．97 MW,循环热效率分别增加了0．51％,0．60％；冷却塔中循环水量减少,热负荷降低,有利于节约用水.
針對電站低溫煙氣和乏汽餘熱的特點,提齣瞭採用低壓省煤器與第一類吸收式熱泵集成迴收低溫餘熱的工藝方案,以某150 MW機組的額定純凝(THA)和額定抽汽2種工況為基準分彆對煙氣、乏汽及繫統進行餘熱迴收計算,結果錶明：採用低溫餘熱迴收工藝方案後,2種工況下,機組髮電功率分彆增加瞭2．37 MW,2．97 MW,循環熱效率分彆增加瞭0．51％,0．60％；冷卻塔中循環水量減少,熱負荷降低,有利于節約用水.
침대전참저온연기화핍기여열적특점,제출료채용저압성매기여제일류흡수식열빙집성회수저온여열적공예방안,이모150 MW궤조적액정순응(THA)화액정추기2충공황위기준분별대연기、핍기급계통진행여열회수계산,결과표명：채용저온여열회수공예방안후,2충공황하,궤조발전공솔분별증가료2．37 MW,2．97 MW,순배열효솔분별증가료0．51％,0．60％；냉각탑중순배수량감소,열부하강저,유리우절약용수.
Agalnst the characteristics of low-temperature waste heat of flue gas and turbine exhaust steam in CFB power plants,process that using the low pressure economizer combining with the type Ⅰ absorption heat pump to recover low-temperature waste heat was proposed.On the basis of THA and rated extraction conditions of a 150 MW unit,relative calculation was carried out.The results show that,after adopting this heat recovery technology,under the above two working conditions,the unit power generating load increased by 2.37 MW and 2.97 MW,the circulating thermal efficiency enhanced by 0.51% and 0.60%,separately. Furthermore,the circulating water in cooling tower reduced,so that the heat load decreased.
