There are two reasons for the excessive heating of plunger pump, one is the heat generated by machine friction. Because the active surfaces are in the state of dry friction or semi dry friction, the moving parts rub against each other to generate heat. Second, liquid friction heat. High pressure oil leaks into low pressure chamber through various loopholes, and a large amount of hydraulic energy is lost and converted into heat energy. In order to accurately select the clearance between moving parts, oil tank volume and cooler, the signs of excessive heating and oil temperature of the pump can be eliminated. In addition, the blockage of the return oil filter causes the return oil back pressure to be too high, which will also cause the oil temperature to be too high and the pump body to overheat.
The main reasons for oil leakage of plunger pump are as follows: (1) the main shaft oil seal is damaged or the shaft has defects and scratches; (2) the internal leakage is too large, which causes the pressure at the oil seal to increase and the oil seal is damaged or flushed out; (3) the oil drain pipe is too thin and too long, which makes the sealing part leak; (4) the external oil pipe of the pump is loose, the pipe is damaged, and the sealing gasket is aged or pregnant with cracks; (5) The bolt of variable regulating mechanism is loose and the seal is broken; (6) there are sand holes or poor welding in cast iron pump shell.
The service life of plunger pump is related to the usual maintenance, the quantity and quality of hydraulic oil and the cleanliness of oil. It is also an effective way to prolong the service life of the piston pump to avoid the wear caused by the particles in the oil.
When replacing parts in maintenance, we should try our best to use the parts produced by the original factory. These parts are sometimes more expensive than other imitation parts, but the quality and stability are better. If we buy the imitation parts with low price, it seems to save the cost in a short time, but it brings hidden dangers and may cause greater harm to the use of plunger pump.
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The main reasons for oil leakage of plunger pump are as follows: (1) the main shaft oil seal is damaged or the shaft has defects and scratches; (2) the internal leakage is too large, which causes the pressure at the oil seal to increase and the oil seal is damaged or flushed out; (3) the oil drain pipe is too thin and too long, which makes the sealing part leak; (4) the external oil pipe of the pump is loose, the pipe is damaged, and the sealing gasket is aged or pregnant with cracks; (5) The bolt of variable regulating mechanism is loose and the seal is broken; (6) there are sand holes or poor welding in cast iron pump shell.
The service life of plunger pump is related to the usual maintenance, the quantity and quality of hydraulic oil and the cleanliness of oil. It is also an effective way to prolong the service life of the piston pump to avoid the wear caused by the particles in the oil.
When replacing parts in maintenance, we should try our best to use the parts produced by the original factory. These parts are sometimes more expensive than other imitation parts, but the quality and stability are better. If we buy the imitation parts with low price, it seems to save the cost in a short time, but it brings hidden dangers and may cause greater harm to the use of plunger pump.
Related products:
Vacuum Brazing Machine For PCD Diamond Tools
Other related products:
Liquid Ring Vacuum Pump