CAJ | 학술논문

介绍了超超临界燃煤机组二次再热技术发展状况和关键技术问题, 以1000 MW容量火电机组为例对二次再热机组经济性进行了分析. 二次再热技术能有效地提高火力发电机组的热效率并降低污染物排放, 且目前的设备材料能够满足二次再热超超临界机组的安全运行要求. 虽然二次再热技术相比一次再热机组存在结构复杂、运行操作难度大及初投资成本增加等问题, 但是在国内环保标准提高和发电设备成本下降背景下, 二次再热技术的节能减排和经济性优势将逐步体现, 大容量超超临界二次再热机组将成为火电机组首选标的.
개소료초초림계연매궤조이차재열기술발전상황화관건기술문제, 이1000 MW용량화전궤조위례대이차재열궤조경제성진행료분석. 이차재열기술능유효지제고화력발전궤조적열효솔병강저오염물배방, 차목전적설비재료능구만족이차재열초초림계궤조적안전운행요구. 수연이차재열기술상비일차재열궤조존재결구복잡、 운행조작난도대급초투자성본증가등문제, 단시재국내배보표준제고화발전설비성본하강배경하, 이차재열기술적절능감배화경제성우세장축보체현, 대용량초초림계이차재열궤조장성위화전궤조수선표적.
The key technical problems and development status of ultra-supercritical unit with double-reheat cycles are proposed and the economy of power unit with double-reheat cycles are analyzed with the capacity of 1000 MW is cited as an example in this paper. The thermal efficiency of the unit could be improved by the applying of double-reheat cycles and pollutants emission could also be reduced. The equipment materials which are mature now can meet the requirements of safe operation of double-reheat ultra-supercritical units. Although there are still some problems such as complicated structure, difficulty operation, high investment compared to one-reheat units, the advantage of double-reheat cycles in energy conservation, emissions reduction and economy will gradually reflect under the background of higher environmental standards and lower equipment price. The high capacity ultra-supercritical unit with double-reheat cycles will be the first option of thermal power unit.