【Daily Question】12.14 Multiple-choice question: What is the cause of pump cavitation in atmospheric and vacuum distillation units?
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Multiple-choice question: The reasons for pump evacuation in atmospheric and vacuum distillation units are 1. The specific gravity of the seal oil is too low; 2. Pump vibration; 3. Degraded lubricating oil; 4. Water in the lubricating oil. 1 correct answer +2 for in-depth discussion +5 @Guan Gongyu
The cause of pump cavitation in atmospheric and vacuum distillation units is (1) an excessively light density of the seal oil. Cavitation in the bottom suction pumps occurs in most such units, and the reason for this is usually either an overly light seal oil or coking at the bottom of the tower.
The reasons for pump evacuation in atmospheric and vacuum distillation units are: 1. The specific gravity of the seal oil is too low; 2. Pump vibration; 3. Degraded lubricating oil; 4. Water contamination in the lubricating oil
1. The density of the sealing oil is too low; it’s probably contaminated with water
The reason for the vacuum formation in the pumps of the atmospheric and vacuum distillation unit is 2: pump vibration