Remodeling design on circulating pump of 600 MW power unit
WU Chun-hua1, GUAN Rong-guo2
1.Hunan XD Changsha Pump Works Co.Ltd., Changsha, Hunan 410015, China; 2.Technical and Research Center of Fluid Machinery Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
Abstract：A remodeling design of circulating pump of 600 MW power unit is introduced which adopts different conversion factors for the impeller and guide blade according to the same model pump.General design was used by taking two circulating pumps of 600 MW Panshan power plant of Tianjin,and two circulating pumps of 600 MW Jingtang power plant of Chengdu as examples.Design methods and design points were detailed from theoretical and experimental points of view.The results indicate that,adopting either different or the same conversion factors to design the impeller and the guide blade,the same property as the model pump is obtained if the difference between the conversion factor of the impeller and that of the guide blade was below 3% and the combined part transition between the impeller and the guide blade can be slippery
