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本文以百万吨乙烯装置的关键设备裂解气急冷器建造为例,从设计视角对其建造过程中重要环节质量控制进行剖析,详细解读了压力容器建造质量保证体系运行的基本要务。压力容器建造质量保证的关键在于合理制定并严格执行符合设计标准规范要求的质量计划,尤其是建造过程各环节的工艺卡制定与控制点的检查确认要深入到位。如此得出:压力容器建造质量计划的执行既是压力容器质量保证体系有效运行的见证,更是以建造过程控制达到不产生不合格进而实现压力容器本质安全的根本保证。
Taking the key equipment cracking methane chiller construction of one million tons of ethylene plant as an example, the paper analyzes the quality control of the important links in the construction process from the design perspective, and explains the basic tasks of the quality assurance system of pressure vessel construction in detail. The key to the quality assurance of pressure vessel construction is to reasonably formulate and strictly implement the quality plan that meets the requirements of the design standards and regulations. In particular, the inspection and confirmation of the process card establishment and control points in all aspects of the construction process should be thoroughly put in place. It is concluded that the implementation of the pressure vessel construction quality plan is not only the testimony of the effective operation of the pressure vessel quality assurance system but also the fundamental assurance that the construction process will be controlled to achieve the non-conformity and then the intrinsic safety of the pressure vessel.