Chemical Process Equipment: [Daily Question] 2011.03.09

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This post was last edited by sean816 on 2011-3-9 19:25. What are the reasons for the gradual decrease in oil pressure in the lubricating oil pump? 1) All participants will receive a reward ； :) :victory: 2 ) Please hide your replies; the method for doing this is: http://bbs.hcbbs.com/thread-492556-1-1.html. Do not edit the replies after posting them. 3) Answer: As long as the key points are included. The reasons for the gradual decrease in oil pressure in the oil pump are as follows: 1. The temperature of the oil keeps rising ； 2. The oil filter is gradually clogging ； 3. The oil suction pipe is leaking or clogged ； 4. Air enters the oil pump ； 5. Reduced oil pump speed (belt-driven) ； 6. Oil pump oil sump plug ； 7. Gear wear in the oil pump ； 8. Excessive water mixed in the oil ； 9. Decrease in lubricant viscosity (oil is too thin) ； 10. Oil safety valve, oil suction valve, oil return valve, malfunction of the oil return valve ； 11. Oil pipeline rupture ； 12. Excessive wear of the shaft bushing due to press-fitted lubrication ； 13. The oil pressure gauge connection pipe is blocked or the gauge is malfunctioning ； 14. Low fuel level in the tank. Exclusion method: 1. Cool the oil temperature appropriately to normal levels ； 2. Clean the oil filter, oil suction pipe, and oil suction valve ； 3. Check all connections to eliminate oil leakage ； 4. Inspect and repair the oil pump, replace worn gears, and adjust the speed ； 5. Check the oil safety valve and return oil valve and make appropriate adjustments ； 6. Maintain the tightness of the oil pump and oil pipes ； 7. Remove water accumulated in the oil or replace it with lubricating oil of appropriate viscosity ； 8. Clear the oil pipe connected to the pressure gauge, and check whether the oil pressure gauge is malfunctioning ； 9. Check whether the bearing shells are excessively worn ； 10. Add fuel if the tank level is low.