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/*728*90 created on 2018/5/16*/ var cpro_id = "u3440131"; Home>Bearing knowledge> Heat transfer oil pump protection method analysis Heat transfer oil pump protection method analysis
The protection of the heat-conducting oil pump, the pump shaft is provided with a stuffing box at the front end, the sealing machine can be relatively firm, and the mechanical sealing device is arranged in the bearing seat together, so that many leakages are impossible to be launched, and a small amount of leakage can be discharged through the leakage nozzle Accepted. /*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089';
It is normal to have a few leaks at the beginning of the start-up work, and the leakage will be reduced or stopped after the sealing surface is run at a certain time. The heat transferred from the transport medium to the pump cover and the bearings is dissipated by the surface of the pump cover and the housing to adapt the temperature of the housing to the temperature of the shaft seal function. Therefore, when selecting the orientation of the pump device, the heat of the pump cover and the bearing housing is easy to disperse, and no heat storage appearance is generated.
Two ball bearings are arranged in the bearing housing, and a ball bearing on the pump impeller side is smoothed by the heat transfer oil conveyed, and a ball bearing on the side of the coupling is smooth with high temperature smooth grease: each ball bearing is working for 300 hours. After that, it must be removed and cleaned with diesel oil to see if the contact surface can be damaged. If it is damaged, it is necessary to replace it with a new one. When the ball bearing device on the impeller side is used, the side with the dust cover should face the impeller device, and the heat transfer oil is written to be smooth before starting. With the ball bearing on the coupling side, the composite calcium-based high-temperature smooth grease (ZFG-4) is used. When the bearing is re-installed, the side with the dust cover is the same as the impeller side device, and the device is filled with smooth grease (about 1 /2 ball bearing and housing space). After the bearing has been in operation for 48 hours, a smooth grease gun is used to write the smooth grease to the injection oil on the bearing cap. It is not allowed to use the gate Valve on the input pipe to regulate the flow to prevent anger. The pump should not be operated below 30% of the flow rate. If it is necessary to work under this premise, the outlet should be installed at the outlet and the flow rate should reach above the minimum value.
Often check the looseness of the anchor bolts, whether the pump casing temperature and the inlet temperature are common, the fluctuation of the outlet pressure gauge and the oscillation of the pump. Pay attention to whether the pump works with or without noise. If it is found to be normal, it should be handled in time. Block the power supply. The liquid in the pump is emptied, and the impeller should be rotated 180 °C as scheduled to prevent the shaft from deforming until the pump body is completely cooled.
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Heat transfer oil pump protection method analysis
Source: China Bearing Network Time: 2018-04-30