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A platform for research: civil engineering, architecture and urbanism
Pressure water tank for coordinately improving inflow and outflow flow states of two-way pump station
The invention provides a pressure water tank for coordinately improving inlet and outlet water flow states of a two-way pump station, and relates to the technical field of water conservancy projects. The pressure water tank can also serve as a reverse water diversion forebay, a porous continuous frame structure is formed in the pressure water tank by combining short partition piers and cylinders, the central divergence angle beta of the pressure water tank is reasonably determined to be 25-30 degrees, the requirement that the underwater volume of the forebay is not suitable for being smaller than 80 times of the designed flow is met, longitudinal slopes of a top plate and a bottom plate of a tank body are properly slowed down and are not steep than 1: 4, and the water diversion effect is good. The problem that the water outlet state of the pressure water tank and the water inlet state of the reverse front pool are disordered is solved in a coordinated mode, safe, efficient and stable operation of a unit is guaranteed, the structural span is reduced, the engineering amount is reduced, economy and safety are achieved, it is guaranteed that the flow state in the pressure water tank is good under the working conditions of flood drainage and reverse water diversion, and it is guaranteed that the unit can operate safely, efficiently and stably.
本发明提供了一种协调改善双向泵站进出水流态的压力水箱，涉及水利工程技术领域。所述压力水箱能够兼做反向引水前池，通过压力水箱内采用短隔墩与圆柱结合布置形成多孔连续框架结构，合理确定压力水箱中心扩散角β为25°～30°，并满足前池水下容积不宜小于设计流量的80倍要求，适当放缓箱体的顶、底板纵坡，均不陡于1:4，不仅协调解决了压力水箱出水及兼做反向前池进水流态紊乱的难题，保证了机组安全、高效稳定运行，而且减小了结构跨度，减少了工程量，经济安全，保证了在排涝和反向引水工况下压力水箱内流态均良好，确保了机组能安全、高效稳定运行。
Pressure water tank for coordinately improving inflow and outflow flow states of two-way pump station
The invention provides a pressure water tank for coordinately improving inlet and outlet water flow states of a two-way pump station, and relates to the technical field of water conservancy projects. The pressure water tank can also serve as a reverse water diversion forebay, a porous continuous frame structure is formed in the pressure water tank by combining short partition piers and cylinders, the central divergence angle beta of the pressure water tank is reasonably determined to be 25-30 degrees, the requirement that the underwater volume of the forebay is not suitable for being smaller than 80 times of the designed flow is met, longitudinal slopes of a top plate and a bottom plate of a tank body are properly slowed down and are not steep than 1: 4, and the water diversion effect is good. The problem that the water outlet state of the pressure water tank and the water inlet state of the reverse front pool are disordered is solved in a coordinated mode, safe, efficient and stable operation of a unit is guaranteed, the structural span is reduced, the engineering amount is reduced, economy and safety are achieved, it is guaranteed that the flow state in the pressure water tank is good under the working conditions of flood drainage and reverse water diversion, and it is guaranteed that the unit can operate safely, efficiently and stably.
本发明提供了一种协调改善双向泵站进出水流态的压力水箱，涉及水利工程技术领域。所述压力水箱能够兼做反向引水前池，通过压力水箱内采用短隔墩与圆柱结合布置形成多孔连续框架结构，合理确定压力水箱中心扩散角β为25°～30°，并满足前池水下容积不宜小于设计流量的80倍要求，适当放缓箱体的顶、底板纵坡，均不陡于1:4，不仅协调解决了压力水箱出水及兼做反向前池进水流态紊乱的难题，保证了机组安全、高效稳定运行，而且减小了结构跨度，减少了工程量，经济安全，保证了在排涝和反向引水工况下压力水箱内流态均良好，确保了机组能安全、高效稳定运行。
Pressure water tank for coordinately improving inflow and outflow flow states of two-way pump station
协调改善双向泵站进出水流态的压力水箱
MENG FANBING (author) / XU DAOLONG (author) / LIU GUOYU (author) / YU YUCHEN (author) / LI TAO (author) / WANG XINKE (author) / KUANG CHENGHUA (author) / WU YANQING (author) / ZHAO SHAOHUA (author) / XU TINGTING (author)
2023-08-08
Patent
Electronic Resource
Chinese
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