平面阀门在淹没状态下底缘上托力的计算方法

重庆交通大学学报（自然科学版） ›› 1994, Vol. 13 ›› Issue (3): 103-107.

平面阀门在淹没状态下底缘上托力的计算方法

刘平昌^1,2,赖志堂^1,2

1.重庆西南水科所重庆; 2.宜宾地区水电设计院四川

收稿日期:1994-01-24 修回日期:1994-01-24 出版日期:1994-09-15 发布日期:2015-04-15
作者简介:刘平昌,男,40岁,工程师

A Mcthod of Calculating of Lifting force Acting on Slide Valve Lip in Condition of Submerged Flow

Liu Pinchang^1,2,Lain Zitang^1,2

1.Southwest Research Institute of Water Transportation Engineering, Chong qing;2.Hydraulic Design Institute in yi bin

Received:1994-01-24 Revised:1994-01-24 Online:1994-09-15 Published:2015-04-15

摘要/Abstract

摘要： 以往平面阀门在淹没出流下底缘上托力系靠模型试验获得．本文着重叙述了底缘上托力的计算方法．当阀门底缘斜面迎向上游时，假定底缘水流不分离情况下，利用势流理论分析并提出底缘动水压力系数Ｋ的计算公式：底缘上托力Pt=r.A(KH+h0），计算值与试验成果比较，基本一致．计算方法可供今后采用类似阀门底缘形式的平面阀门设计及启闭力计算参考．

关键词: 阀门底缘上托力, 阀门段阻力系数, 阀门动水压力系数

Abstract: Ilnder conditions of submerged flow, the lifting force acting on the lip of slide valve was generally obtained throughmodel tests in the past. The author presents a method of calculating the lifting foree in this paper.It is assumed that flow under bottom

Key words: lifting force acting on lip of valve, loss cocfficient of valve section in culvert, valve coefficientof hydro-dy-namic pressuse

中图分类号:

U641.332

刘平昌,赖志堂. 平面阀门在淹没状态下底缘上托力的计算方法[J]. 重庆交通大学学报（自然科学版）, 1994, 13(3): 103-107.

Liu Pinchang,Lain Zitang. A Mcthod of Calculating of Lifting force Acting on Slide Valve Lip in Condition of Submerged Flow[J]. Journal of Chongqing Jiaotong University(Natural Science), 1994, 13(3): 103-107.