聚合反应器安全阀泄放量的分析与计算  

DISCHARGE CAPACITY ANALYSIS AND CALCULATION OF SAFETY VALVE ON POLYMERIZATION REACTOR

作　　者：李黔蜀[1] 陈贺明 Li Qianshu;Chen Heming(Yangling Vocational and Technical College,Xianyang,Shaanxi,712100;Foster Wheeler(Hebei)Engineering Design Co.,Ltd.Shanghai Branch,Shanghai,200235)

机构地区：[1]杨凌职业技术学院,陕西咸阳杨凌712100 [2]福斯特惠勒(河北)工程设计有限公司上海分公司,上海200235

出　　处：《石油化工设备技术》2020年第5期11-14,I0001,I0002,共6页Petrochemical Equipment Technology

摘　　要：以API 521为指导原则并根据工程经验分析了火灾、出口关闭、调节阀故障、化学反应、水力学膨胀和公用工程中断等可能造成三元乙丙橡胶聚合反应器超压的各种工况,重点对外部火灾工况下由于液体受热膨胀造成的超压和化学反应失控情况下反应热引起的超压进行了探讨,计算了各工况下所需的安全阀泄放量,结果表明:化学反应工况下安全阀泄放量最大,达到了47520 kg/h,根据最大泄放量计算出的安全阀的需要泄放面积为415 mm^ 2。Taking the principles in API 521 as the guiding principles and based on engineering experience,this paper analyzes various working conditions that may cause overpressure in the ethylene-propylene-diene monomer(EPDM)polymerization reactor,such as fire,blocked outlet,control valve failure,chemical reaction,hydraulic expansion,and utilities failure.It focuses on the discussion of overpressure caused by thermal expansion of the liquid under external fire conditions and overpressure caused by reaction heat when chemical reaction is out of control.The paper calculates the required discharge capacityof safety valve under each working condition.The results show that the discharge capacity of safety valve is the largest under the condition of chemical reaction,reaching 47520 kg/h,and the required discharge area of the safety valve calculated according to the maximum discharge capacityis 415 mm^ 2.

关 键 词：安全阀 泄放量 工况分析 热膨胀 

分 类 号：TQ333.4[化学工程—橡胶工业]