空气阀排气性能分析  

Exhaust Performance Analysis of Air Valve

作　　者：赵秀红[1] 朱满林[1] 张言禾[1] 王涛[1] 

机构地区：[1]西安理工大学,陕西西安710048

出　　处：《水力发电》2008年第2期49-50,97,共3页Water Power

基　　金：陕西省教育厅省级重点实验室重点科研计划项目(05JS35)

摘　　要：空气阀已成为长距离输水系统中必不可少的设备,担负着管道充水排气,事故、正常停机进气及排气,水锤防护等多项任务。其选型合理与否对工程安全运行影响较大。为此,分析了空气阀排气性能实测资料与公式计算结果的差异,由于空气阀的排气面积与流量系数的乘积不是常量,因此提出在进行压力输水系统水力过渡过程分析时应采用空气阀的实测资料。Air valves have already become indispensable apparatus in long-distance water conveyance system. They take charge the responsibilities of exhaust of the water-filling pipeline, air intake and exhaust during accidental and normal failure, and water hammer protection, etc. Making a reasonable selection of air valves will have a great impact on the safety operation of project. The author analyzes the differences between measured data of exhaust performance of air valves and formula calculation, concludes that selection of air valves should depend on measured data.

关 键 词：空气阀 进排气特性 流量系数 

分 类 号：TV672.2[水利工程—水利水电工程]