火(核)电站循环水泵房前池水力模型试验研究

根据浙江北仑电厂二期工程循环水泵房水力模型试验，分析电厂冷却水泵站前池中的不良流态及其解决方案，对泵站前人的水工布置、前池的扩散角及前池长度的设计提出了优选方案。利用该方案，不仅可较好地解决前池内流态紊乱、流速分布不均以及度坎后部次生流的产生等问题，同时可缩短前池长度、降低工程造价。

Hydraulic Test of Pump Sumps of Thermal (Nuclear) Power Plants

Based on hydraulic physical model tests of the pump sumps of the second stage of Beilun power plant in Zhejiang Province, the poor flow condition in the sump of the cooling water pump station is analysed and a feasible solution is proposed in this paper. The alternative to optimize the design of hydraulic arrangement, the diffusion angle and the length of the sump is given. The problems of turbulent and nonuniform stream in sump and the secondary flow in the back of the sill have been solved. The length of the sump and the cost of the engineering project have been reduced by means of the method.