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 泄压 Development and Application of Ball Float Pressure Relief Valve 浮球式泄压阀的研制和应用 Analysis on Explosive Pressure Relief for Urban Gas Supply Houses 城市燃气站房防爆泄压的分析 TEST OF THE EMERGENCY PRESSURE RELIEF SYSTEM AND THEORETICAL CALCULATION OF THE APERTURE OF PRESSURE RELIEF ORIFICE IN A HYDROCRACKING UNIT 加氢裂化紧急泄压系统的试验和泄压孔板内径的理论计算 Selection of the pressure relief safety valve 泄压安全阀的选择 A Kind of High Pressure and Low Pressure Relief Valve Used in Oil Pipeline's Safety and Protection 一种用于输油管道安全保护的高、低压泄压阀 The Application of High/Low Pressure Relief Valve in Tight Line Transportation Pipeline, 高低压泄压阀在密闭输油管道中的应用 Discussion on a recommended method to calculate the pressure relief area 一种计算泄压面积的推荐方法 Application of Pressure Relief Valves against 'Water Hammer' in Long Oil Pipeline 水击泄压阀在长输油管上的应用 Application of dual pressure relief valve toseal oil pipelines. 高低压泄压系统在密闭输油中的应用 NUMERICAL SIMULATION ON EFFECT OF PRESSURE RELIEF OF WATER INJECTION WELL ON CASING SQUEEZE PRESSURE 注水井泄压对套管挤压力影响的数值模拟 Besides, it detailed treats of the selection for nominal diameter of agent pipe, and how to determine the resistance factor of pipe, calculate the pressure loss, areas of pressure relief orifice and opening compensation dosage of protected zones, etc. 详细论述混合气体IG541自动灭火系统的灭火剂管道通径选择、管道沿程阻力系数的确定、管道沿程压力损失的计算、保护区域泄压口面积的计算、保护区域开口补偿量的计算等内容。 The above mentioned pressure relief valve can help solve the problem. It works in this way: It closes when the compressed liquid pressure value reaches the set value and discharges part of the liquid thus avoiding surge occurance. 泄压阀正好解决了这个问题,它在液体被压缩的压力值达到规定值时就开阀,泄放一部分液体,达到消除水击的目的。 Summarized in the article are the control method and device adopted in foreign designs, such as pressure relief valve system, air pressure buffer system, electronic/hydrolic relief system, rubber sleave relief valve system and fly wheel system, etc. 综述了国内外控制管道水击增压速率所采用的措施和装置,主要有泄压阀系统、气压缓冲罐系统、电子—液力泄放系统、橡胶套泄放阀系统、飞轮系统等。 (2) protection with low pressure relief valve; ②低压泄压阀保护; As for the control of the negative surge wave, quick opening regulating valves can be used, while the positive surge wave, low pressure relief valves can be used in pressure relieving besides sensitive regulating valve system, in order to reduce surge pressure. 对于故障性负水击波,可采用快速调节阀控制,而对于正水击波,除采用反应灵敏的调节系统外,还可采用低压泄压阀泄压,以降低水击幅度。 Introduces the characteristics of pressurinzation system for smoke control in highrise building, discusses the design methods of pressure and volume,gives a few points of pressure relief channels and supply air and operation means. 介绍了高层建筑加压送民防排烟的特点讨论了加压逆风压力和风量的设计计算方法提出了泄压途径送风和运行方式等设计要点 The formulas of API and HYSIM were analysed and studied. How to select the three kinds of operation model to caculate pressure relief was discussed. 对API公式以及HYSIM公式进行分析研究，对如何选用HYSIM中的3种操作模型计算泄压进行了探讨。 According to the spill valve principle of hydraulic system and high pressure valve imported at oil pipeline, we designed a kind of new safety and protection equipment pilot electric high pressure valve and liquid damping electric low pressure relief valve used in long distance oil pipeline. 我们根据液压系统中的溢流阀原理，参照了输油管道上引进的高压阀，设计出一种新型的应用于长输原油管道上的安全保护装置——先导式电动高压阀及气－液阻尼式电动低压泄压阀。 Freezing and condensation prevention measures for process pipeline, water pipeline and utility pipeline were analyzed in detail, including the freezing and condensation prevention for pressure relief valves of compressors and the pipeline of heat exchangers and pumps. 包括压缩机、泄压阀、换热器和泵的管道的防凝或防冻 ,对各种管道的防凝和防冻进行了分析 Release source models were divided into leakage models, release models and discharge models from pressure relief system according to different release features and forms. 按泄漏源形式与特征的不同 ,将泄漏模型分为渗漏、泄漏和泄压元件泄放 3种泄漏类型。

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