pressure released vent

The influence of diameter of pressure released vent and powder loading of composed perforator on the changing process of casing annulus pressure produced by powder deflagration was investigated with an experimental casing model and a dynamic pressure test technology.

采用实验室模拟套管实验装置和动态压力测试技术,对复合射孔器枪身泄压孔及火药装药进行系列单发射孔单元的爆炸实验,研究在不同枪身泄压孔径、不同火药装药量条件下射孔弹和火药爆燃所产生的压力对环空压力变化过程的影响,以及不同泄压孔径时相同载荷和标准泄压孔时不同装药量对枪身安全性的影响。

The larger break area, the faster system depressurization, the more the loss of coolant and the shorter critical time.

破口面积对小破口失水事故瞬态热工水力特性的影响苏光辉，喻真烷，张金玲，郭玉君，秋穗正，贾斗南（西安交通大学能动学院西安７１００４９）关键词破口面积，泄压，冷却剂，临界时间１引言在反应堆系统中，若发生了小破日失水事故，如不及时采取相应的措施，也能导致堆。

Discussion on a recommended method to calculate the pressure relief area;

一种计算泄压面积的推荐方法

The fire-resisting rating and pressure relief measures of the boiler room are determined.

介绍了拥有热功率为29、58 MW燃煤热水锅炉各4台的天津市空港物流加工区的热源厂锅炉房的平面布置,确定了锅炉房的耐火等级及泄压措施。

It is considered that two super high pressure to high pressure systems exist in the sag mainly taking Lijin subsag and Niuzhuang subsag as center respectively; fault zones around Lijin subsag and Niuzhuang subsag are decompression area; overpressure area appe.

在分析超压和低压形成机制的基础上 ,采用声波时差和地震速度的方法计算地层压力 ,研究了东营凹陷压力系统及其分布特征 ,分析认为凹陷内主要以利津洼陷和牛庄洼陷为中心构成两个超高压—高压系统 ,环利津洼陷和牛庄洼陷的断裂带为泄压区 ;在民丰洼陷和博兴洼陷只有小范围的超压区。

In this article,the structure and operation mechanism of 414-6035 water-hitting relief valve made by FISHER company,USA,and used in Luning oil transportation pipeline were introduced in detail.

详细介绍了鲁宁输油管道引进由美国FISHER公司制造的414-6035型水击泄压阀的结构和操作原理,并根据水击泄压阀在输油管道上的使用情况,提出使用和管理过程中的注意事项。

A new-type nitrogen-filled quick-opening/slow closing relief valve is introduced.

分析了目前输油管道应用的弹簧式安全阀和橡胶套式泄压阀其优缺点,重点介绍了一种新型的充氮式快开缓关泄压阀,这种泄压阀反应灵敏、泄流量大,弥补了前两种泄压阀的不足,既可保障管道的安全运行,又可降低运行维护费用。