适应水击控制的多喷孔套筒式调流阀研究  

Study on multi-jet sleeve regulating valve adaptable to control of water hammer

作　　者：杨开林[1] 李明[2] 

机构地区：[1]中国水利水电科学研究院水力学所,北京100038 [2]水利部山西水利水电勘测设计研究院,山西太原030024

出　　处：《水利水电技术》2009年第12期43-46,共4页Water Resources and Hydropower Engineering

摘　　要：现有多喷孔套筒式调流阀无量纲阀门流量系数τ和开度y的特性曲线是线性的,或是上凸的,这有利于在阀门的整个行程内允许精确的流量控制,但是不利于长管道的水击控制。文中提出了适应水击控制多喷孔套筒式调流阀的设计方法和实例,其特点是τ-y曲线是下凹曲线,可以在相同关阀条件下大大减少水击压力。The characteristic curve between the non-dimensional flow coefficient,τ, and the opening, γ is linear or convex for the existing multi-jet sleeve regulating valve. This only allows the precise flow control over the entire stroke of the valve, but is not be favorable to control the water hammer in a long pipeline. A method with the actual case for design the multi-jet sleeve regulating valve adaptable to the water hammer control is put forward herein, from which the valve designed has the property of the characteristic curve between τ and γ being concave, and then the transient pressure can be greatly reduced when the closure of the valve.

关 键 词：多喷孔套筒式调流阀 水击控制 阀门设计 

分 类 号：TV672.2[水利工程—水利水电工程]