水电站气垫式调压室的体型设计

Shape Design of Air Cushion Surge Chamber of Hydropower Plant

针对目前气垫式调压室体型设计尚无成熟方法可依的情况,基于国内已建工程的气垫式调压室设计资料,采用参数统计分析方法建立了相关参数间关系,拟定了各体型参数取值,并按参数拟定的方便程度逐步介绍各体型参数的拟定方法。同时,比较分析了基于稳定气体体积与基于稳定断面面积的两种体型设计方法的差异。最后以阴平水电站为例,完成了其气垫式调压室的体型设计,且大幅减小了方案拟定阶段的体型设计工作量。

As no proven methods for shape design of air cushion surge chamber（ASC） can be followed so far,a new way has been developed in this paper.Firstly,the relationship between the relevant parameters is established with statistical analysis of domestic designed data of ASC.Then based on the principle of convenience,parameters are estimated one by one.Moreover,a comparative analysis of two shape design methods based on the concept of stable cross-section area and stable gas volume has been implemented.Finally,taking Yinping hydropower plant for an example,the shape design of ASC has been finished,which greatly reduces shape design workload in earlier stage.