【Q&A Question 093】April 03, 2017
Thread Content
【Q&A Question 093】April 3, 2017: The main reasons for the increase in bearing temperature of pumps. The reference answers can be seen after responding; points will be awarded for identifying the key factors. (Unless otherwise specified, all questions and answers are based on hydrogenation units.) ) 1. Oil inlet temperature is too high. 2. Insufficient lubricating oil. 3. Damaged bearings. 4. Increased rotor vibration. Summary thread of Q&A questions for 2017 (updates ongoing): http://bbs.hcbbs.com/thread-1657793-1-1.html Summary thread of daily questions for 2017 (updates ongoing): http://bbs.hcbbs.com/thread-1657794-1-1.html Summary thread of Q&A questions for 2016 (updates completed): http://bbs.hcbbs.com/thread-1597792-1-1.html Third-phase selection contest for outstanding management members at Haichuan: http://bbs.hcbbs.com/thread-1655902-1-1.html (Source: Haichuan Chemical Industry Forum)
Blockage in the circulating cooling water, poor quality of lubricating oil, inappropriate clearance of bearing shells
Lack of lubricant, excessive lubricant, the pump operating under no load or with too light a load, misalignment between the pump and the motor coupling
Lack of lubricant, excessive lubricant, the pump operating under no load or with too light a load, misalignment between the pump and the motor coupling
Too much or too little lubricating oil or grease, dirty lubricant, misalignment of the unit, misalignment of the bearing housings, damaged bearings, etc.
1. Insufficient lubricating oil, substandard quality； 2. Cooling water interruption ； 3. Improper bearing assembly or damage.
Lack of lubricating oil, misalignment of the motor and pump, excessive vibration of the pump, overload on the pump
Wear, lack of oil, oil emulsification, excessive oil level, high oil temperature
Corroded lubricating oil, excessive oil level, damaged seals, pump vacuum, blocked or insufficient cooling water