钻孔喷嘴出口重叠度对船用辅汽轮机通流的影响
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摘要
以某型船用汽轮货油泵为例,研究高压比大焓降下的钻孔喷嘴设计,针对喷嘴出口重叠度,通过三维有限元分析对钻孔喷嘴内部流场进行分析。同时,对不同重叠度热力方案下的总体参数进行计算分析,得到机组效率较高的重叠度,可为钻孔喷嘴热力优化设计提供重要的参考依据。
Certain type steam turbine for cargo oil pump is taken as an example to research nozzles design used in high pressure ratio and great enthalpy drop. Aiming at the nozzle outlet overlap, the flow field of the turbine throughflow is analyzed by the 3 D FEM. The paper calculates and analyzes the overall parameters under different overlapping thermal schemes, and obtains the high efficiency overlap of the unit, which provides important inference for the thermal optimization design of drill nozzles.
Certain type steam turbine for cargo oil pump is taken as an example to research nozzles design used in high pressure ratio and great enthalpy drop. Aiming at the nozzle outlet overlap, the flow field of the turbine throughflow is analyzed by the 3 D FEM. The paper calculates and analyzes the overall parameters under different overlapping thermal schemes, and obtains the high efficiency overlap of the unit, which provides important inference for the thermal optimization design of drill nozzles.
引文
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[3]薛红军,曾建华,李泓,等.汽轮滑油泵钻孔喷嘴流场的数值模拟[J].机电设备,2017,34(4):22-27.
[4]胡李鹏,巫志华,张晓.1 000 MW超临界机组给水泵汽轮机高压进汽部分数值模拟[J].汽轮机技术,2013(5):347-350.
[5]杨太龙,曾小康.给水泵汽轮机关键部件制造工艺[J].东方汽轮机,2012(3):35-39.
[6]BOHN D,HEUER T.Conjugate Flow and Heat Transfer Calculation of a High-pressure Turbine Nozzle Guide Vane[C]//37th Joint Propulsion Conference and Exhibit.2001.
[7]ROUVROIT TALD.Aero-Thermal Performance of a Two-Dimensional Highly Loaded Transonic Turbine Nozzle Guide Vane:A Test Case for Inviscid and Viscous Flow Computations[J].Journal of Turbomachinery,1992,114(1):147-154.
[8]蔡颐年.蒸汽轮机[M].西安:西安交通大学出版社,2008.
[9]王福军.计算流体动力学分析:CFD软件原理与应用[M].北京:清华大学出版社,2004.
[2]胡荣华,姜忠涛.船用汽轮机组超音速喷嘴设计研究[J].船舶工程,2012,34(4):49-51,89.
[3]薛红军,曾建华,李泓,等.汽轮滑油泵钻孔喷嘴流场的数值模拟[J].机电设备,2017,34(4):22-27.
[4]胡李鹏,巫志华,张晓.1 000 MW超临界机组给水泵汽轮机高压进汽部分数值模拟[J].汽轮机技术,2013(5):347-350.
[5]杨太龙,曾小康.给水泵汽轮机关键部件制造工艺[J].东方汽轮机,2012(3):35-39.
[6]BOHN D,HEUER T.Conjugate Flow and Heat Transfer Calculation of a High-pressure Turbine Nozzle Guide Vane[C]//37th Joint Propulsion Conference and Exhibit.2001.
[7]ROUVROIT TALD.Aero-Thermal Performance of a Two-Dimensional Highly Loaded Transonic Turbine Nozzle Guide Vane:A Test Case for Inviscid and Viscous Flow Computations[J].Journal of Turbomachinery,1992,114(1):147-154.
[8]蔡颐年.蒸汽轮机[M].西安:西安交通大学出版社,2008.
[9]王福军.计算流体动力学分析:CFD软件原理与应用[M].北京:清华大学出版社,2004.