One question per day: Reformation hydrogenation
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Restructuring: What are the reasons for the evacuation of the pre-hydrogenation feed pump? What phenomena are there? How to handle it?
Reason: 1. Low feed pressure； 2. Feed filter plug ； 3. The opening degree of the inlet valve is too small ； 4. The feed components are too light. 5. The pump was not filled properly; there is gas inside the pump. Symptoms: 1. Increased noise ； 2. Reduced export flow ； 3. Increase the opening of the outlet control valve ； 4. Increased pump vibration: Solution: Conduct a thorough analysis and take appropriate measures.
Reason: ? ?1. Low feed pressure； ? ?2. Feed filter plug ； ? ?3. The opening degree of the inlet valve is too small ； ? ?4. The feed components are too light. ? ?5. The pump was not filled properly; there is gas inside the pump. Symptoms: ? ?1. Increased noise ； ? ? 2. Reduced export flow ； ? ? 3. Increase the opening of the outlet control valve ； ? ? 4. Increased pump vibration. Solution: ? ? Conduct a thorough analysis and take appropriate measures. Additional information (2020-4-6 10:01): The oil seal has an excessively low specific gravity ； Tower, liquid level in the container drops, packing gland is too loose, cooling water flows into the pump body
Reason: 1. Low feed pressure； 2. Feed filter plug ； 3. The opening degree of the inlet valve is too small ； 4. The feed components are too light. 5. The pump was not filled properly; there is gas inside the pump. Symptoms: 1. Increased noise ； 2. Reduced export flow ； 3. The outlet pressure gauge shows a decrease ； 4. Increased pump vibration