One question per day: Coal-to-oil and olefins forum, 2017.12.08
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This post was last edited by Xi Bei Gu Yan on 2017-12-8 at 13:22; 3.jpg. Participants: Prize of 5 Wealth； Correct answer: Reward of 10 wealth points ； Note: This post is valid for 48 hours. Question: What is the purpose of pre-cooling the cold pump in the separation cold zone of an olefin plant?
This is because the cold pump operates at low temperatures; if the material at low temperature is not pre-cooled, it will vaporize immediately upon entering the pump, preventing the pump from functioning properly. Moreover, the different temperatures in various parts of the pump can cause problems such as the shaft getting stuck in the casing or mechanical seal leakage. Therefore, it is necessary to slowly pre-cool the pump to its operating temperature before starting it up.
Prevent leakage caused by seal deformation after the pump starts up
Prevent leakage caused by seal deformation after the pump starts up
Prevent leakage caused by seal deformation after the pump starts.
This is because the cold pump operates at low temperatures; if the material at low temperature is not pre-cooled, it will vaporize immediately upon entering the pump, preventing the pump from functioning properly. Moreover, the different temperatures in various parts of the pump can cause problems such as the shaft getting stuck in the casing or mechanical seal leakage. Therefore, it is necessary to slowly pre-cool the pump to its operating temperature before starting it up.
Purpose of pre-cooling the cold pump in the separation cold zone of the olefin plant: to prevent leaks caused by seal deformation after the pump starts up.
Reduce the gasification rate to ensure normal liquid pumping by the pump
Prevent leakage caused by seal deformation after the pump starts up
Prevent leakage caused by seal deformation after the pump starts up