机械式呼吸阀的类型与通气性能  

Types of Mechanical Breathing Valve and the Ventilation Capability

作　　者：黄起陆[1] 于江[1] 赵晓刚[1] 

机构地区：[1]中国人民解放军后勤工程学院军事供油工程系

出　　处：《油气储运》2008年第10期51-56,共6页Oil & Gas Storage and Transportation

摘　　要：分析了油罐四种机械呼吸阀的通气性能,指出重力式和弹簧力式呼吸阀采用恒力式工作原理,通流系数小,能保证油罐的压力安全并降低油品损耗;先导式和磁力两级式呼吸阀采用卸力式工作原理,通流系数大,能有效保证油罐的呼吸安全。Ventilation capacities of the four mechanical breathing valves in oil tanks are analyzed.It is pointed out that gravitation and spring valves utilize constant work principle,with small flow coefficient,which can ensure safety pressure of the oil tank and reduce oil loss,while two-stage precursor and magnetic control breathing valves utilize discharge work principle,with large flow coefficient,which can efficiently guarantee the breathing safety of the oil tank.

关 键 词：油罐 机械呼吸阀 通流系数 

分 类 号：TE972[石油与天然气工程—石油机械设备] TS261.11[轻工技术与工程—发酵工程]