What are the reasons for vibration during the operation of a feed water pump?
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(1) Excessive traffic, operating under overload. (2) At low flow rates, periodic turbulence occurs in the fluid within the pipeline, causing unstable operation of the pump. (3) Vaporization of the feedwater pump. (4) The bearing is loose or damaged. (5) Loose impeller. (6) Shaft bending. (7) Unbalance of the rotating part. (8) The coupling centers are not aligned. (9) The foundation screws of the pump body are loose. (10) Severe wear of the balance disc. (11) Foreign objects enter the impeller.
(1) Excessive traffic, operating under overload. (2) At low flow rates, periodic turbulence occurs in the fluid within the pipeline, causing unstable operation of the pump. (3) Vaporization of the feedwater pump. (4) The bearing is loose or damaged. (5) Loose impeller. (6) Shaft bending. (7) Unbalance of the rotating part. (8) The coupling centers are not aligned. (9) The foundation screws of the pump body are loose. (10) Severe wear of the balance disc. (11) Foreign objects enter the impeller.
(1) Excessive flow leading to overload operation. (2) At low flow rates, periodic pulsations of the fluid in the pipeline occur, causing unstable operation of the pump. (3) Water vaporization. (4) The bearing is loose or damaged. (5) The impeller is loose. (6) Shaft bending. (7) Unbalance in the rotating parts. (8) The coupling centers are not aligned. (9) The foundation bolts of the chestnut body are loose. (10) The balance disk is severely worn. (11) Foreign objects enter the impeller.
I’m not in the equipment business; I’ll just talk about the problems I’ve encountered. 1. Installation quality issues, such as poor alignment between the motor and the pump body ； 2. Problems during operation: Such as poor dynamic balance caused by uneven wear or corrosion of the pump impeller ； The anchor bolts have become loose due to long-term operation ； Without regular maintenance, lubricant needs to be added ； Foreign objects have entered the pump body ； The outlet valve opening is too small when the pump operates for a long time.
The shaft is bent, the impeller is loose, and the pump and motor are not properly aligned
1. Below the pump’s minimum flow rate. 2. The lubricating oil in the bearing housing is deteriorated or contains impurities. 3. Check whether the foundation is solid; there may be a situation where the base is suspended in the air. 4. There is a problem with the bearing. 5. Clogging of the inlet filter, etc. .