初终参数变化对能耗影响的定量分析方法研究
|
摘要
初终参数变化是汽轮机运行中普遍存在的现象,参数变化对机组经济性的影响是一直备受关注的问题。本论文深入分析了调节级变工况特性,有效地简化了变工况下调节级效率的计算;提出了以改进型弗留格尔公式为基础,利用监测的压力、温度数据和汽轮机末级结构设计数据计算排汽焓的方法;建立了热力系统近似变工况计算模型;利用热经济性状态方程,对典型的600MW凝汽式汽轮机组进行了性能计算,分析得出了不同负荷下初温、初压、背压及再热汽温变化对机组能耗的影响及各参数对热耗的修正曲线;通过具体热力试验,验证了本论文建立的计算模型的准确性与精确度,为现场对试验结果的修正提供了理论依据。
It’s a general phenomenon for the steam-turbine that the initial and the final parameters often vary. In this thesis, the varying condition characteristic of the regulating stage is profoundly analysed, and it simplifies the calculation of the efficiency. A method based on advanced Flugel formula to calculate exhaust enthalpy is proposed. In this thesis, it utilizes the thermo-economy state equation to calculate the performance of 600MW condensing turbine. It obtains the effect and the fair curves of unit heating rate and initial temperature, initial pressure, backing pressure and reheat temperature. The thermal characteristic experiment verifies the rationality and the accuracy of the calculated model. It provides theoretical evidence for the amendment of experimental results.
It’s a general phenomenon for the steam-turbine that the initial and the final parameters often vary. In this thesis, the varying condition characteristic of the regulating stage is profoundly analysed, and it simplifies the calculation of the efficiency. A method based on advanced Flugel formula to calculate exhaust enthalpy is proposed. In this thesis, it utilizes the thermo-economy state equation to calculate the performance of 600MW condensing turbine. It obtains the effect and the fair curves of unit heating rate and initial temperature, initial pressure, backing pressure and reheat temperature. The thermal characteristic experiment verifies the rationality and the accuracy of the calculated model. It provides theoretical evidence for the amendment of experimental results.
引文
[1] 沈士一,庄贺庆,康松,等.汽轮机原理.北京:水利电力出版社,1992,192～194
[2] 陈慧,周江涛.动力设备性能修正曲线的缺点及引入性能修正函数的工程意义.发电设备,2000,14(2):45～47
[3] 王乃宁,张志刚.汽轮机热力设计.北京:水利电力出版社,1987,195～197
[4] 李勇,陈梅倩.汽轮机运行性能诊断技术及其应用.北京:科学出版社,1999,81～84
[5] 蔡杰进,马晓茜,廖艳芬.主蒸汽参数耗差分析方法的比较研究.汽轮机技术,2006,48(1):31～33
[6] Derbentli T.et al.Thermodynamic and economic analysis of cogeneration steam cycles. A SHRAE Transanction, 1988: 309～320
[7] 林万超.火电厂热系统节能理论.西安:西安交通大学出版社, 1994,81～82
[8] 周兰欣,张学镭,陈素敏,等.凝汽器压力应达值的确定方法.汽轮机技术,2002,44(3):149～151
[9] 李维特,黄保海,等.汽轮机变工况热力计算.北京:中国电力出版社,2001,65～67
[10] 江宁,曹祖庆.调节级通用曲线的计算与应用.汽轮机技术,2003,45(1):17～19
[11] Kuisma Kari, Suominen Markku, Vakkilainen Esa. Power plant energy efficiency analysis-An effective tool to reduce pulp and paper mill energy production costs. Proceedings PulPaper 2004 Conferences, Energy and Carbon Management, 2004: 105～108
[12] 曹祖庆.汽轮机变工况特性.北京:水利电力出版社,1991,114～118
[13] 任浩仁,盛德仁,卢学锋,等.汽轮机在线性能计算中排汽焓的确定.动力工程,1998,18(6):1～4
[14] 韩中合,杨昆,田松峰,等.在线确定凝汽式汽轮机排汽焓的热力学方法.动力工程,2004,24(3):356～359
[15] 张春发,张明智,崔映红,等.凝汽式汽轮机在变工况下流动状态的判别.动力工程,2002,22(3):1781～1785
[16] 张春发,崔映红,杨文滨,等.汽轮机组临界状态判别定理及改进型Flugel公式.中国科学(E辑),2003,33(3):264～272
[17] Wong Alvin C B. Development of a knowledge-based system to improve power plant thermal efficiency. IEE Conference Publication, V1, N388, 1994: 135～141
[18] 刘豹,现代控制理论.北京:机械工业出版社,2002,5～48
[19] 张春发,张素香,张宝.热力发电厂热力系统热经济性状态方程,第六届汽轮机学术年会,西安,2001(11):58～91
[20] 张春发 张素香 崔映红,等.现行电力系统热经济性状态方程.工程热物理学报,2001.22(11):665～667
[21] 付昶,武学素.凝汽式汽轮机组背压变化对功率影响的研究.热力发电,1999,28(1):39～42
[22] 郑体宽.热力发电厂.北京:水利电力出版社,1995,152～182
[23] 杨志平.火电机组性能监测与优化研究:[硕士学位论文].北京:华北电力大学,2003
[24] 翦天聪.汽轮机原理.北京:水利电力出版社,1992,84～92
[25] A.Valero, M.A.Lozano, J.L.Bartolome. On-line monitoring of Power Plant Performance,Using Exergetic Cost Techniques,Applies Thermal Engineering, Vol 16,No 12,1996:125～136
[26] K. Salisbury. Steam Turbine and Their Cycle. Robert E. Krieger Publishing Co. NY. Reprint,1994: 92～112
[27] 杨海生,郭江龙.汽轮机背压修正曲线计算的简化方法.汽轮机技术,2007,49(1):32～34
[28] Valeo A, Torresc. A general Theory of Thermodynamic. Proceedings of Ecos, 1992:137～154
[29] Prasad G, Swidenbank E, Hogg B W. Novel performance monitoring strategy for economical thermal power plant operation. IEEE Transactions on Energy Conversion, V14, N3, 1999: 802～810
[30] 刘豫龙.火力机组变工况运行经济性分析及优化的在线实现:[硕士学位论文].杭州:浙江大学,2005
[31] 姬文亮.热力系统数学建模及通用计算软件的开发:[硕士学位论文].南京:东南大学,2004
[32] 西安热工研究所.汽轮机热力试验.北京:电力工业出版社,1982,181～188
[33] 电力工业部热力发电设备及材料质量检验测试中心.ASME PTC6—1996.汽轮机性能试验规程.1998
[34] 国家机械工业委员会.GB 8117—87.电站汽轮机热力性能验收试验规程.1988
[35] Shia H, Kuragashaki M and Adachi T, On the Numerical Analysis Method of Flow and Heat Transfer in Conensors, Proceedings of the Seventh International Heat Transfer Conference, Vol 6, 1982: 234～251
[36] Naim H. Afgan. Measurement techniques in Power Engineering. Wash D.C. Hamisphere Pub, 1985: 89～123
[37] Mark Enns,Comparison of Dynamic Models of Superheater, Transactions of the ASME, Series C, 1962(4): 189～193
[38] 樊泉桂,阎维平.锅炉原理.北京:中国电力出版社,2004,158～162
[2] 陈慧,周江涛.动力设备性能修正曲线的缺点及引入性能修正函数的工程意义.发电设备,2000,14(2):45～47
[3] 王乃宁,张志刚.汽轮机热力设计.北京:水利电力出版社,1987,195～197
[4] 李勇,陈梅倩.汽轮机运行性能诊断技术及其应用.北京:科学出版社,1999,81～84
[5] 蔡杰进,马晓茜,廖艳芬.主蒸汽参数耗差分析方法的比较研究.汽轮机技术,2006,48(1):31～33
[6] Derbentli T.et al.Thermodynamic and economic analysis of cogeneration steam cycles. A SHRAE Transanction, 1988: 309～320
[7] 林万超.火电厂热系统节能理论.西安:西安交通大学出版社, 1994,81～82
[8] 周兰欣,张学镭,陈素敏,等.凝汽器压力应达值的确定方法.汽轮机技术,2002,44(3):149～151
[9] 李维特,黄保海,等.汽轮机变工况热力计算.北京:中国电力出版社,2001,65～67
[10] 江宁,曹祖庆.调节级通用曲线的计算与应用.汽轮机技术,2003,45(1):17～19
[11] Kuisma Kari, Suominen Markku, Vakkilainen Esa. Power plant energy efficiency analysis-An effective tool to reduce pulp and paper mill energy production costs. Proceedings PulPaper 2004 Conferences, Energy and Carbon Management, 2004: 105～108
[12] 曹祖庆.汽轮机变工况特性.北京:水利电力出版社,1991,114～118
[13] 任浩仁,盛德仁,卢学锋,等.汽轮机在线性能计算中排汽焓的确定.动力工程,1998,18(6):1～4
[14] 韩中合,杨昆,田松峰,等.在线确定凝汽式汽轮机排汽焓的热力学方法.动力工程,2004,24(3):356～359
[15] 张春发,张明智,崔映红,等.凝汽式汽轮机在变工况下流动状态的判别.动力工程,2002,22(3):1781～1785
[16] 张春发,崔映红,杨文滨,等.汽轮机组临界状态判别定理及改进型Flugel公式.中国科学(E辑),2003,33(3):264～272
[17] Wong Alvin C B. Development of a knowledge-based system to improve power plant thermal efficiency. IEE Conference Publication, V1, N388, 1994: 135～141
[18] 刘豹,现代控制理论.北京:机械工业出版社,2002,5～48
[19] 张春发,张素香,张宝.热力发电厂热力系统热经济性状态方程,第六届汽轮机学术年会,西安,2001(11):58～91
[20] 张春发 张素香 崔映红,等.现行电力系统热经济性状态方程.工程热物理学报,2001.22(11):665～667
[21] 付昶,武学素.凝汽式汽轮机组背压变化对功率影响的研究.热力发电,1999,28(1):39～42
[22] 郑体宽.热力发电厂.北京:水利电力出版社,1995,152～182
[23] 杨志平.火电机组性能监测与优化研究:[硕士学位论文].北京:华北电力大学,2003
[24] 翦天聪.汽轮机原理.北京:水利电力出版社,1992,84～92
[25] A.Valero, M.A.Lozano, J.L.Bartolome. On-line monitoring of Power Plant Performance,Using Exergetic Cost Techniques,Applies Thermal Engineering, Vol 16,No 12,1996:125～136
[26] K. Salisbury. Steam Turbine and Their Cycle. Robert E. Krieger Publishing Co. NY. Reprint,1994: 92～112
[27] 杨海生,郭江龙.汽轮机背压修正曲线计算的简化方法.汽轮机技术,2007,49(1):32～34
[28] Valeo A, Torresc. A general Theory of Thermodynamic. Proceedings of Ecos, 1992:137～154
[29] Prasad G, Swidenbank E, Hogg B W. Novel performance monitoring strategy for economical thermal power plant operation. IEEE Transactions on Energy Conversion, V14, N3, 1999: 802～810
[30] 刘豫龙.火力机组变工况运行经济性分析及优化的在线实现:[硕士学位论文].杭州:浙江大学,2005
[31] 姬文亮.热力系统数学建模及通用计算软件的开发:[硕士学位论文].南京:东南大学,2004
[32] 西安热工研究所.汽轮机热力试验.北京:电力工业出版社,1982,181～188
[33] 电力工业部热力发电设备及材料质量检验测试中心.ASME PTC6—1996.汽轮机性能试验规程.1998
[34] 国家机械工业委员会.GB 8117—87.电站汽轮机热力性能验收试验规程.1988
[35] Shia H, Kuragashaki M and Adachi T, On the Numerical Analysis Method of Flow and Heat Transfer in Conensors, Proceedings of the Seventh International Heat Transfer Conference, Vol 6, 1982: 234～251
[36] Naim H. Afgan. Measurement techniques in Power Engineering. Wash D.C. Hamisphere Pub, 1985: 89～123
[37] Mark Enns,Comparison of Dynamic Models of Superheater, Transactions of the ASME, Series C, 1962(4): 189～193
[38] 樊泉桂,阎维平.锅炉原理.北京:中国电力出版社,2004,158～162