西安交通大学叶轮机械研究所,西安,710049
网络首发:2014-05-10,
纸质出版:2014
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程鹏, 王新军, 张峰, 等. 核电汽轮机弯管式汽水分离器的改进结构及其除湿性能[J]. 西安交通大学学报, 2014,48(5):61-66+77.
Special Cross-Under Pipe Separators Structure and Moisture Separation Performance of Nuclear Power Steam Turbines[J]. 2014, 48(5): 61-66+77.
程鹏, 王新军, 张峰, 等. 核电汽轮机弯管式汽水分离器的改进结构及其除湿性能[J]. 西安交通大学学报, 2014,48(5):61-66+77. DOI: 10.7652/xjtuxb201405011.
Special Cross-Under Pipe Separators Structure and Moisture Separation Performance of Nuclear Power Steam Turbines[J]. 2014, 48(5): 61-66+77. DOI: 10.7652/xjtuxb201405011.
为了提高弯管式汽水分离器的除湿效率
提出了2种汽水分离器改进结构
一种是弯管前加旋流装置的组合分离器
另一种是“Z”字形弯管分离器
同时对改进结构进行了数值研究。结果表明:弯管前加旋流装置的组合分离器中
汽流经过旋流叶栅后流向发生偏转
紊乱的流场持续到第一组导流除湿叶栅进口
汽流经过第二组导流除湿叶栅后流线基本与圆管的轴向一致
汽流经过旋流叶栅和导流除湿叶栅时会产生较大总压损失; “Z”字形弯管分离器管中
汽相流速比较均匀
流线分布良好
总压损失主要发生在导流除湿叶栅中。与弯管式分离器相比
弯管前加旋流装置的组合分离器的除湿效率提高了7.4%
平均总压损失系数增大了28.1%; “Z”字形弯管分离器性能最佳
除湿效率提高了11.3%
平均总压损失系数减小了37.5%。该结果可为研究和开发新型汽水分离器提供理论依据。
To improve the moisture separation efficiency of special cross-under pipe separators(SCRUPS)
two modified separators — combinational separator with a swirl device in front of SCRUPS and “Z” shaped SCRUPS are proposed and numerically investigated. The results show that steam in combinational separator deflects after the swirl blades
and its disordered flow continues to the inlet of the first row of blade cascade and gets homogeneous after the second row. Considerable total pressure loss occurs in swirl blades and blades cascades. Relatively homogeneous steam velocity and fine streamline distribution appear in “Z” shaped separator
and the total pressure loss occurs mainly in blade cascades. Compared with SCRUPS
the combinational separator enhances the moisture separation efficiency by 7.4% and the average total pressure loss coefficient by 28.1% relatively
and the “Z” shaped separator is endowed with the best performance
where the moisture separation efficiency is increased by 11.3%
and the average total pressure loss coefficient is decreased by 37.5%.
李亮, 王华, 游玮, 等. 核电汽轮机汽水分离再热器的发展现状[C]∥中国动力工程学会透平专业委员会2011年学术研讨会论文集. 北京: 中国动力工程学会, 2011.
VON BOECKH P, STIEFEL M, FRICK U. Experience with the moisture preseparator(MOPS)and with the special crossunder pipe separator(SCRUPS)in the Leibstadt nuclear plant[C]∥Proceedings of American Power Conference. Baden, USA: BBC Brown Boveri and Co. Ltd., 1986: 860422.
LEMEZIS S, BUSHEY J R, RABAS T J. Operating experience with new moisture pre-separators and special crossunder pipe separators[J]. ABB Review, 1990, 3(1): 3-10.
DROSDZIOK A, FELDMUELLER A, HAM D, et al. Steam turbine and steam power plant with the steam turbine: Switzerland, WO1998016724 A1[P]. 1998-04-23.
JR SILVESTRI G J. Water collector for steam turbine exhaust system: USA, US4825653 A[P]. 1989-05-02.
朱东琦. 波形板汽水分离器中流场的数值模拟[D]. 哈尔滨: 哈尔滨工程大学, 2004.
任水强. 核电汽轮机弯管式汽水分离器的去湿特性数值分析[D]. 西安: 西安交通大学, 1996.
柯华, 明廷臻, 涂正凯. 旋流叶片传热管内湍流强化传热数值模拟[J]. 冶金能源, 2009, 28(2): 38-41.
KE Hua, MING Tingzhen, TU Zhengkai. Numerical simulation of turbulent heat transfer enhancement in the heat transfer tube with swirling blades[J]. Energy for Metallurgical Industry, 2009, 28(2): 38-41.
PARKER G J, LEE P. Studies of the deposition of sub-micron particles on turbine blades[J]. Proceedings of the Institution of Mechanical Engineers, 1972, 186(1): 519-526.
邓建中, 刘之行. 计算方法[M]. 2版. 西安: 西安交通大学出版社, 2001.
陈静涛, 孙祖基, 张志新. 湿蒸汽汽轮机高压缸排汽中水滴平均直径的计算[J]. 汽轮机技术, 1998, 40(2): 92-95.
CHEN Jingtao, SUN Zuji, ZHANG Zhixin. The average diameter calculation of drops in wet steam turbine's high-pressure cylinder exhaust gas[J]. Turbine Tech-nology, 1998, 40(2): 92-95.
GYARMATHY G, BURKHARD H P, LESCH F, et al. Spontaneous condensation of steam at high pressure: first experimental results[C]∥Proc Inst Mech Engr Conf. London, UK: IME, 1973: 197-208.
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