近百万台压力容器处于使用状态中,它们的状况及使用单位的管理情况如何,对生产对安全关系极大。压力容器使用中都处于承压状态,有的还处于高温、低温、交变负荷的恶劣条件下运行,因此使用中的压力容器的腐蚀、磨损、变形、泄漏、开裂等损坏是经常发生的,而压力容器内的介质有的具有易燃、有毒、腐蚀的性质,如不及时发现这些缺陷和损坏,并采取措施消除,则很可能酿成压力容器爆炸事故,给生产和人民生命和财产,带来严重损失。更何况在用的压力容器中还有一定数量是十年动乱中生产不正常时的产品,以及非正规 Nearly 1 million pressure vessels are in use, their status and the management of the use of units, on the production of great safety. Pressure vessels are under pressure in use, and some are still in high temperature, low temperature, alternating load operation under harsh conditions, so the use of pressure vessels corrosion, wear, deformation, leakage, cracking and other damage is often occurring, However, some of the media in the pressure vessel are flammable, poisonous and corrosive. Failure to detect these defects and damage in a timely manner and take measures to eliminate them are likely to lead to the explosion of pressure vessels and to the production and life and property of the people. Serious losses. Not to mention there is a certain amount of pressure vessels in use is the production of unregulated products during the decade of unrest, as well as informal