How to maintain the heat transfer oil pump

Thermal oil pump maintenance, the pump shaft is provided with a stuffing box in the front end, the sealing function can be more reliable, and a mechanical seal is provided in the bearing seat, so a large number of leaks can not be thrown up while a small amount of leakage can be discharged through the leaky spout receive. A small amount of leakage is normal at the beginning of the operation, and the leakage will be reduced or stopped after running through the sealing surface for a certain period of time. The heat transferred to the pump cover and the bearing by the transmission medium is dissipated by the pump cover and the bearing seat, Housing temperature to adapt to the temperature of the shaft sealing function.Therefore, the choice of pump installation position, to make the pump cover and bearing seat of the heat to facilitate diffusion, does not cause any heat accumulation phenomenon. There are two ball bearings in the bearing housing. One ball bearing on the pump impeller side is lubricated by the heat-conducting oil. One ball bearing on the coupling side is lubricated with high-temperature grease. Each ball bearing is operated for 300 hours Must be removed after cleaning with diesel to check the contact surface is damaged, if damaged, you must replace the bearings by the impeller side of the ball bearing installation, the side of the dust cover to the impeller installation, boot before injection Thermal grease lubrication. Coupling side of the ball bearings, with complex calcium-based high-temperature grease (ZFG-4), the re-install the bearing, the dust cover side also toward the impeller side installation, installation, filling lubrication Grease (about 1/2 ball bearings and shell space) .In the operation of the bearings 48 hours after the grease gun to the bearing cap on the injection of oil injection into the additional grease.Do not use the input pipe gate valve to regulate the flow, Avoid gas production anger. Pump should not be less than 30% of the design flow continuous operation, if necessary under the premise of operation, it should be installed in the bypass bypass pipe, and the flow to reach the above minimum. Always check the looseness of the anchor bolts, pump casing temperature and into the temperature is consistent, the export pressure gauge fluctuations and vibration of the pump. Pay attention to whether there is no noise pump operation, such as the pilot state is found to be promptly processed. Cut off the power supply. The pump liquid vent, cleaning and should be on schedule to rotate the impeller 180 ℃ to prevent shaft deformation until the pump body completely cooled so far.

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