热力发电
熱力髮電
열력발전
THERMAL POWER GENERATION
2015年
4期
6-10
,共5页
大型供热机组%湿冷%空冷%热电联产%凝汽余热利用%吸收式热泵
大型供熱機組%濕冷%空冷%熱電聯產%凝汽餘熱利用%吸收式熱泵
대형공열궤조%습랭%공랭%열전련산%응기여열이용%흡수식열빙
large cogeneration unit%wet cooling%air cooling%CHP%exhaust heat utilization%absorption heat pump
利用吸收式热泵回收汽轮机凝汽余热来提高电厂的供热能力和能源利用效率，是大型热电联产节能领域的重点研究方向。在该类型系统中，抽汽和凝汽参数的选择既影响着凝汽余热利用系统的性能，又影响着供热机组运行的安全与经济性。对此，在深入剖析大型供热机组的设计和工作机理的基础上，从运行安全出发，确定基于凝汽余热利用的抽、凝参数的选择依据及关联，分析凝汽余热利用对供热机组发电的影响，结果表明：空冷机组在小容积流量工况下比湿冷机组具备更强的适应能力；应综合供热和发电2方面因素评价凝汽余热利用热电联产系统的能源利用效率。
利用吸收式熱泵迴收汽輪機凝汽餘熱來提高電廠的供熱能力和能源利用效率，是大型熱電聯產節能領域的重點研究方嚮。在該類型繫統中，抽汽和凝汽參數的選擇既影響著凝汽餘熱利用繫統的性能，又影響著供熱機組運行的安全與經濟性。對此，在深入剖析大型供熱機組的設計和工作機理的基礎上，從運行安全齣髮，確定基于凝汽餘熱利用的抽、凝參數的選擇依據及關聯，分析凝汽餘熱利用對供熱機組髮電的影響，結果錶明：空冷機組在小容積流量工況下比濕冷機組具備更彊的適應能力；應綜閤供熱和髮電2方麵因素評價凝汽餘熱利用熱電聯產繫統的能源利用效率。
이용흡수식열빙회수기륜궤응기여열래제고전엄적공열능력화능원이용효솔，시대형열전련산절능영역적중점연구방향。재해류형계통중，추기화응기삼수적선택기영향착응기여열이용계통적성능，우영향착공열궤조운행적안전여경제성。대차，재심입부석대형공열궤조적설계화공작궤리적기출상，종운행안전출발，학정기우응기여열이용적추、응삼수적선택의거급관련，분석응기여열이용대공열궤조발전적영향，결과표명：공랭궤조재소용적류량공황하비습랭궤조구비경강적괄응능력；응종합공열화발전2방면인소평개응기여열이용열전련산계통적능원이용효솔。
One of the most important research fields in combined heat and power (CHP)is to recycle the condenser waste heat by absorption heat pump,which can enhance the heating capacity and energy utiliza-tion efficiency of the plants.In this system,parameters selection for the extraction steam and condensed steam will affect the system performance and the safe and economic operation of the cogeneration units. Thus,on the basis of deeply analyzing the design and operation mechanism of large cogeneration units,the selection principle and correlation of extraction steam parameters and condensing steam parameters were determined,from the aspect of safe operation,to better utilization of condenser waste heat.At last,the effect of waste heat utilization on power generation was investigated.The results show that,under condi-tions with small volumetric flow,the alr cooling unit has stronger adaptability than the wet cooling unit. Both the heating and power generation should be considered to evaluate the energy utilization efficiency of the cogeneration units with waste heat recovery.
