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1 引言 1999年12月6日上午10点11分,我厂50万催化装置外取热汽包(E-131)南侧安全阀起跳,安全阀起跳后,由于巨大反冲力的作用,致使E-131安全阀接管拉弯变形。2 安全阀起跳经过概要 12月6日凌晨,当班操作人员发现外取热热水循环量由189t/h下降到182t/h,发汽量由12t/h下降到6t/h,而再生器床温在逐步上升这一异常情况
1 Introduction At 10: 11 in December 6, 1999, 500,000 catalytic units of our factory took safety valves on the south side of hot steam drum (E-131) to take off. After the safety valve took off, due to the huge recoil force, E -131 Safety valve take over bending deformation. 2 Safety valve take-off summary In the early hours of December 6, on-duty operators found that the hot water circulating capacity was reduced from 189 t / h to 182 t / h and the steam emission decreased from 12 t / h to 6 t / h, while the regenerator bed Temperature is gradually rising this anomaly