Abstract：In order to fix the drawbacks of large-size and low heads of the existing vehicle-mounted high-speed fire pumps, an advanced new pump,based on increasing flow method in combination with minimal power required additional inducers and enlarged throat area of volutes, is playing significant roles in firefighting of high or superhigh-storey buildings. Meanwhile, it was modeled through employing UG, and the turbulent numerical simulation of 3D steady flow on hydraulic model of the pump was carried out based on RNG k-ε turbulence model through Ansys. The calculated results show that performance curves of the pump are featured by stability, high efficiency, and wide high-performance area. Moreover, it is unlikely for the pump to have overloading situations. The head is 71.3% of rated head at the design flow of 150% and the head of shut off condition is 126.7% of rated head. The stationary flow rules of its inducers, impellers and volutes were analyzed through velocity vectors and sta-tic pressure. The results show the even distribution in velocity pattern and the sound arrangement between blades of inducers and impellers. Owning to the stability of the interior of the new pump, indu-cers can effectively improve their cavitation and erosion resistance. Consequently, this kind of pumps can meet standard requirements of fire pumps.
杨秀鑫, 宋文武, 魏立超, 石建伟, 王鑫. 高速消防泵的设计及分析[J]. 排灌机械工程学报, 2017, 35(12): 1036-1041.
YANG Xiuxin, SONG Wenwu, WEI Lichao, SHI Jianwei, WANG Xin. Design and analysis of high-speed fire pumps. Journal of Drainage and Irrigation Machinery Engin, 2017, 35(12): 1036-1041.
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