【Daily Question 2019】LNG Section – Question No. 4-28
Thread Content
What are the causes of overheating in the end-face seal of a centrifugal pump and how to address it? Causes: 1. Low cooling water flow or interruption of the water supply. 2. Problems with the sealing elements. Solutions: 1. Adjust the water flow. 2. Contact a mechanic to handle the issue. 3 correct for wealth, 1 incorrect for wealth ； Mass posting of posts – rated based on the lowest score ； Replies that are unrelated to the answer are considered spam and will be deleted immediately. For management purposes, if you need to view content from a few days ago, please go to https://bbs.hcbbs.com/home.php?mod=space&uid=3862647&do=thread&view=me&from=space through the summary post below
1. Adjust the cooling water volume； 2. Check and replace the lubricating oil ； 3. Adjust the amount of seal flushing oil
Dry grinding, poor internal circulation, insufficient cooling water volume
1. Insufficient or interrupted cooling water flow. 2. Seal issues. Solutions: 1. Adjust the water flow. 2. Contact a fitter for handling.
1. Cause: Low or interrupted cooling water flow, seal issues. 2. Solution: Adjust the water volume and contact a maintenance technician for repairs.
1. The motor and pump shaft are not aligned； 2. Insufficient lubricating oil ； 3. The lubricating oil is emulsified, deteriorated, or contains impurities; it is not up to standard ； 4. Excessive lubricating oil ； 5. Cooling water interruption ； 6. The oil slinger jumps out of its fixed position ； 7. Bearing damage ； 8. Shaft bending, rotor imbalance.
Reason: Low cooling water flow and sealing issues. Solution: Adjust the water volume and repair the seals
Exhaust pressure buildup causes heating, and the current is too high
Reason: 1. Low cooling water volume or interruption； 2. Sealing issue. Processing: 1. Adjust the water volume ； 2. Contact a fitter to handle it.
Answer: The reasons are: 1. Low cooling water flow or interruption, 2. Sealing issue. Treatment: 1. Adjust the water volume; 2. Contact a blacksmith for handling.