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最近,笔者接触到几起压力容器事故,均与设计有关,现作简要介绍。 (1)设计者盲目采用用户提出的使用条件,使一台反应罐使用40余天就发生爆炸。例如:×××化工厂添制的一台高压反应罐,使用介质为氨水、氯化铵(8%的浓度)、邻硝基苯氨。用户提出反应罐的主体材料要采用不锈钢。设计人员根据用户的要求进行设计,简体及封头都采用了1Cr18Ni9Ti不锈钢。反应罐使用仅40余天发生爆炸,分析事故情况表明,该压力容器因
Recently, I came into contact with several pressure vessel accidents, are related to the design, is a brief introduction. (1) The designer blindly adopts the conditions of use proposed by the user, causing a reaction tank to explode for more than 40 days. For example: × × × chemical plant to create a high-pressure reaction tank, the use of ammonia in the media, ammonium chloride (8% concentration), o-nitroaniline. Users proposed the main material of the reaction tank to use stainless steel. Designers design according to the user’s requirements, simplified and head are used 1Cr18Ni9Ti stainless steel. The reaction tank was exploded only for more than 40 days, and the analysis of the accident conditions indicated that the pressure vessel had been damaged