558 / 2019-01-14 20:06:41

水泵水轮机驼峰区 流场CFD分析/Water pump turbine hump area Flow field CFD analysis

水泵水轮机；泵工况；驼峰区/pump tumbine;pump mode;hump ditrict

全体主题 > 涡轮机

摘要
随着生活水平的不断提高，人们对电力的要求越来越大。相对于火电站消耗不可再生能源，污染环境等缺点，抽水蓄能电站以其稳定、无污染、电力优质、可调峰填谷等特点被人们广泛使用。
水泵水轮机是抽水蓄能电站的核心部件，通过对水泵水轮机从水轮机工况到泵工况的相互切换，抽水蓄能电站实现调峰填谷的重要功能。在泵工况中，水泵水轮机的扬程—流量曲线中驼峰区的产生，对泵工况的稳定性与安全性造成较大影响
本文根据哈尔滨电机厂有限责任公司的仙居水轮机进行模型建立，并对泵工况下，水轮机不同导叶开度、不同流量的工况进行了CFD数值模拟计算。通过对结果的分析研究，对水泵水轮机扬程—流量曲线中驼峰区现象及产生原因进行初步分析。
关键词：水泵水轮机；泵工况；驼峰区

Abstract
With the improvement of living standards, demand for power is growing. Relative to the weakness of thermal power plant such as consuming fossil energy and polluting the environment,pumped storage power station is widely used in its adjustable,stable, pollution-free, high-quality of power features.
Pump-turbines is a key part of pumped-storage power station, through switching on pump turbine operating conditions between turbine condition and pump condintion , pumped storage power station achieve its important functions of adjustment.In pump condition , hump district produce in head-flow curve, which has a bad impact on stability and security in pump mode.
The paper based on the Xianju turbine mode from Harbin electric machinery company,and calculated CFD numerical simulation on different gateopening conditions and different flow conditions.
Keywords:pump tumbine;pump mode;hump ditrict