Investigation On The Internal Flow In A Boiler-Feeding-Water Pump Powered By A Gas-Turbine

	Investigation On The Internal Flow In A Boiler-Feeding-Water Pump Powered By A Gas-Turbine
	Yang, Congxin; Ma, Yuntong
	2013
关键词	pump internal flow pressure distribution CFD boiler-feeding-water pump clean coal technology
页码	759-762
英文摘要	Calculation and analysis on the internal flow in a boiler-feeding-water pump powered by a gas-turbine used in the supercritical unit in a power plant was carried out using the computational fluid dynamics (CFD) approach by means of a parallel computer. The results show, compared with the internal flow in a single-stage centrifugal pump, that some special phenomena are found in the flow channels in the boiler-feeding-water pump, the internal flow in the pump is complicated with obvious flow characteristics. There is large variation of the pressure in the near-wall zones of the internal case compared with that of the external one; The pressure distribution is clearly asymmetrical in the flow channel between the cases, which enlarges the force of the cases; The high pressure and velocity regions with large area found near the exit of the impeller in the flow passages in the ones; The vortex flow exists in the suction chambers from the first stage to the sixth one. These features will provide the evidence for the improvement of the pump, which will improve the efficiency of the unit, furthermore, it can optimize the utilization of coal in the supercritical unit in a power plant.
会议录	2013 INTERNATIONAL CONFERENCE ON MATERIALS FOR RENEWABLE ENERGY AND ENVIRONMENT (ICMREE), VOLS 1-3
会议录出版者	IEEE
会议录出版地	345 E 47TH ST, NEW YORK, NY 10017 USA
语种	英语
WOS研究方向	Energy & Fuels ; Engineering
WOS记录号	WOS:000365600900174
内容类型	会议论文
源URL	[http://119.78.100.223/handle/2XXMBERH/36820]
专题	能源与动力工程学院
通讯作者	Yang, Congxin
作者单位	Lanzhou Univ Technol, Sch Energy & Power Engn, Lanzhou, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Yang, Congxin,Ma, Yuntong. Investigation On The Internal Flow In A Boiler-Feeding-Water Pump Powered By A Gas-Turbine[C]. 见:.