空分设备临时停车时,因气动蝶阀开关位失准,精馏塔内冷量外泄进入蒸汽加热器,致使蒸汽加热器管束爆裂后含有蒸汽的加热气体进入分子筛吸附器,导致分子筛失去吸附能力,影响空分设备的正常运行。详细介绍了故障的经过、原因分析及解决与预防该故障的具体操作方法和步骤。 Air separation equipment temporary parking, due to the pneumatic butterfly valve switch bit accurate, the rectification tower leaked into the internal cooling steam heater, resulting in the steam heater tube burst burst heated gas containing steam into the molecular sieve adsorber, resulting in the loss of molecular sieve adsorption capacity , Affect the normal operation of air separation equipment. Described in detail the failure of the cause analysis and to solve and prevent the failure of the specific methods and procedures.