[Q&A Question 081] 2016.07.10
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This post was last edited by liuquan1100 on 2016-7-10 14:15. [Q&A Question No. 081] 2016.07.10: Under what circumstances does a hydrogenation unit need to be shut down urgently? The answer key will be available after responding; scoring is based on addressing the key points. 1. Furnace tube rupture, ignition ； 2. Excessive overheating of the furnace tube ； 3. Explosion, fire ； 4. The fuel gas contains a significant amount of liquid.
1. When the boiler pressure rises above the rated value, the safety valve does not activate； 2. Uncontrolled rise or fall in water level ； 3. Severe damage to water supply facilities or safety accessories ； 4. Collapse of the furnace wall or damage to boiler components poses a safety risk.
Emergency situations such as hydrogen circulation pump shutdown, material supply interruption to the device, and system leaks
1. Circulating hydrogen interruption； 2. Breakage of the heating furnace tubes ； 3. The hydrogen supplement carries CO. Methanation reaction occurs
1. Furnace tube rupture, ignition； 2. Excessive overheating of the furnace tube ； 3. Explosion, fire ； 4. The fuel gas contains a significant amount of liquid.
1. Reactor overheating 2. Hydrogen circulation compressor shutdown 3. Built-in interlock in the furnace triggers automatically 4. Feed pump shuts down, resulting in a sudden interruption of raw material supply
Material breakage, hydrogen flow interruption, severe leakage, major safety hazard