箱式双向调压塔对城市供热管网的水锤防护分析  

Analysis of Water Hammer Protection of City Heating Pipe Network by Box-type Two-way Pressure Regulating Tower

作　　者：赵莉[1] 宋张驰 汪建平[2] 

机构地区：[1]西安航空学院能源与建筑学院,陕西西安710077 [2]长安大学环境科学与工程学院,陕西西安710054

出　　处：《西安航空学院学报》2016年第3期56-60,共5页Journal of Xi’an Aeronautical Institute

基　　金：西安航空学院重点项目(2015KY11020);西安市科技局产学研协同创新计划(高校类)(CXY1518(3))

摘　　要：城市供热管网突然停泵、阀门突然关闭和热负荷突然改变都会导致管道系统压力降低,容易产生蒸汽空腔,继而引发断流弥合水锤。介绍了供热管网中常用的水锤防护设施,简述了箱式双向调压塔的特点及边界条件,通过工程实例,两阶段缓闭止回阀结合箱式双向调压塔的防护方案对于供热管网水锤防护效果显著。The sudden stop of pumps,the sudden turning-off of valves,and the sudden change of thermal load will lead to the pressure drop of the urban heating pipeline network,likely to result in steam cavity and further water hammer of cavities collapsing.This paper introduces the commonly used water hammer protection facilities in the heating pipe network,and describes the characteristics and boundary conditions of the box-type two-way pressure regulating tower.At last,it verifies the conclusion that two-stage slow closing check valve with box type two-way surge tank protection scheme are significantly effective for heating pipe network water hammer protection.

关 键 词：供热管网 蒸汽空腔 断流弥合水锤 水锤防护设施 箱式双向调压塔 边界条件 

分 类 号：TU991[建筑科学—市政工程]