Analysis and Discussion on a Major Explosion Accident Involving 11￥30 of U Substance
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This post was last edited by Sea Lake_NKPM on 2019-1-5 21:05 on November 27th
1. The weight of the heat exchanger is not specified in the report: the weight of each E2208/2 slurry steam generator is 68 tons, while the weight of the shell assembly is 35 tons； Tube bundle assembly 22 tons ； The head assembly weighs 4 tons, and the bolts removed in the report are made of chromium-molybdenum steel with an M48 size.
I once studied * in Workshop 2 for three months!
This post was last edited by Sea Lake_NKPM on 2019-1-5 21:05. It depends on when it is; management is quite strict these days anyway
From the information you sent, you are an internal employee!
Hehe, I downloaded it from the official website of the Safety Supervision Bureau. It’s an official accident investigation report, as well as a material used in our course analyses; I thought I’d post it here to see if anyone thinks there’s anything worth studying
The redesign of catalytic cracking processes is based on experimental data; there is a significant difference between theory and practice. The positioning of the tubes in the regenerator is determined empirically, and if done incorrectly, the unit may not be able to operate. The volume of the heat exchanger and the flow rate of air are also critical factors, as improper settings can lead to resonance. There is no analysis from a scientific perspective; simple scaling up and down is not sufficient. The lesson is engineering accidents.
Limit condition tests must be conducted before catalytic production. If the fluidization state remains normal under various conditions, there will be no problems during normal operation; otherwise, serious issues will definitely arise if efforts are spared.