超超临界机组参数和热力系统的优化分析_沈邱农.pdf

　 24 3 动 力 工 程 Vol. 24 No. 3　 　2004 6 POW ER EN GINEERING June 2004　 　　: 1000-6761(2004) 03-0305-06 沈邱农,　程钧培 (, 200240) 　: 概要叙述了国外超超临界技术的现状和发展趋势,研究了 种因素对超超临界机组参数 和热力系统选择的影响,指出发展国产化大容量超超临界参数机组十分必要,提出了我国发展超超 临界技术的可选方案,并对其经济性作了初步分析。 表 3参 4 : 动力机械工程;超超临界参数;热力系统;经济性 : K284. 1　　　: A Opt imizing Analysis of t he Parameters and Thermal System for Ult ra Supercrit ical Unit S H EN Qiu -nong , C HEN J un -p ei ( Shanghai Power Equipment Research Institute, Shanghai 200240, China) Abstract: It has summarized up and analysed the status quo and develoment trends of foreign ultra super- critical techniques, researched the influence of the different factors on the parameters and the thermal system s choice, indicated the necessity to develop the demestic and large ultra supercritical units, had for- ward the possible choice measures of the domestec measures of the domestec developping ultra suporcritical techniques, and then summary analysed its economy. ables 3 and refs 4. Key words: power and mechanical engineering; ultra supircritical parametes; thermal system; economy CO S 522, 650℃ 1　 , 2003。 , 1981- 2000 ,, , 31. 1 、 593℃/593℃/593℃ 。 MPa 20, 24. 1MPa、538/566℃ 34. 3MPa、 649℃/593℃/593℃, 44. 。, 2% ～ 44. 9%。 , 30MPa、630℃/630℃, 44. 16%。 ,。 199