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低压液化气瓶在化工生产中的应用十分广泛。在化工生产中,大量的反应介质或半成品、成品都需要以低压形式永久或临时性存在。低压液化气瓶具有占地小、便于移动、操作简单等优点,因此承担着存储、中转这些物质的作用。但由于气瓶的工作条件带有一定的压力并且可能由于工艺条件的波动造成压力超标,加之盛装物质具有一定的易燃、易爆、毒害或腐蚀等危险性,低压液化气瓶的材质强度有可能会下降,产生疲劳和腐蚀。此外,气瓶的频繁重复使用,可能会造成阀门和安全附件的可靠性降低,如果忽略定期检测,就很容易发生破坏性事故。据统计,在石油化工企业中,
Low-pressure gas cylinders in chemical production is widely used. In chemical production, a large number of reaction medium or semi-finished products, finished products need to be low-pressure form of permanent or temporary existence. Low-pressure liquefied gas cylinders have the advantages of small footprint, easy to move, simple operation and so on, thus taking on the role of storage and transit of these substances. However, due to the working conditions of the gas cylinder with a certain pressure and may be due to fluctuations in process conditions caused by excessive pressure, coupled with the material containing a certain flammable, explosive, poisoning or corrosion risk, the material strength of LPG cylinders May decline, resulting in fatigue and corrosion. In addition, frequent cylinder re-use may result in reduced reliability of valves and safety attachments, which can easily be disrupted if periodic inspections are omitted. According to statistics, among the petrochemical enterprises,