What should we pay attention to when preheating diesel pump?
The warm-up process should be correct. The general process is: pump outlet pipeline → inlet and outlet cross line → pre-hot wire → pump body → pump inlet.
The preheating valve cannot be opened too large to prevent the reverse of the pump.
Pump body preheating speed generally can not be too fast, should be less than 50℃/h. In special cases, the pump body can be steam, hot water and other measures to speed up the preheating speed.
Preheating every 30~40 minutes should turn 180°, so as to avoid uneven heating up and down the pump shaft and bending.
Bearing box, pump seat cooling water system to be opened to protect bearing and shaft seal.
What is the reason for high pressure diesel
gear pumps to run for a period of time?
Heat is the performance of mechanical energy into heat energy, causing abnormal heat pump common reasons are:
Fever accompanied by noise is usually the damage of the bearing and ball isolation frame.
The bearing sleeve in the bearing box is loose, the front and back gland is loose, and the heat is caused by friction.
The bearing hole is too large, causing loosening of the bearing outer ring.
There's a foreign body in the pump.
Rotor vibration, the sealing ring wear.
Pump pumping or excessive load of the pump.
Rotor imbalance.
Too much or too little lubricating oil and unqualified oil quality.
The above information is written by Botou Haina Oil Pump (http://www.hinapump.com)
