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随着我国大型泵站的发展,安全、可靠、经济的断流方式愈显重要.在虹吸管道真空破坏阀、快速闸门、拍门三种断流方式中,拍门断流日益为人们所重视.在全国近200余座大型泵站中,采用拍门断流的泵站占62%以上.七十年代初期,为了减小拍门的面积和重量,在安徽驷马山泵站中首先采用了由八块小拍门组成的多瓣式组合拍门,每块尺寸仅1.335×1.325m~2.化大为小,相对地减小了关闭时的撞击力.这种型式的拍门由于分块较多,开
With the development of large pumping stations in our country, the safe, reliable and economical method of stopping flow is more and more important.In the siphon pipeline vacuum breaking valve, rapid gate and pat gate, In nearly 200 large-scale pumping stations in China, the pumping stations that take the shut-off are more than 62%. In the early 1970s, in order to reduce the area and weight of the pat gates, A multi-flap combination shutter door made up of eight small shutter doors, each measuring only 1.335 × 1.325m ~ 2 in size, greatly reduces the impact force at the time of closure. Block more, open