The heat transfer oil pump pump shaft is provided with a stuffing box at the front end, and the sealing performance is relatively reliable. At the same time, a hot oil pump is arranged in the bearing seat. The pump shaft is provided with a stuffing box at the front end, and the sealing performance is relatively reliable, and a mechanical sealing device is arranged in the bearing seat. Therefore, a large amount of leakage is unlikely to occur, and a small amount of leakage can be discharged through the leaking nozzle. It is normal to have a small amount of leakage at the beginning of the run, and the leak will be reduced or stopped after a certain period of time.
2. The heat transferred from the conveying medium to the pump cover and the bearing of the heat transfer oil pump is dissipated by the surface of the pump cover and the bearing seat, so that the temperature of the bearing seat is adapted to the temperature of the shaft sealing performance. Therefore, when selecting the installation position of the heat transfer oil pump, the heat of the pump cover and the bearing housing is easy to spread, and no heat storage phenomenon occurs.
3. Two ball bearings are arranged in the bearing seat. One ball bearing on the pump impeller side of the heat transfer oil pump is lubricated with the heat transfer oil conveyed, and one ball bearing on the side of the coupling is lubricated with high temperature grease: each ball After the bearing has been running for 3000 hours, it must be removed and cleaned with diesel oil. Check the contact surface for damage. If it is damaged, it must be replaced with a new one. When installing the ball bearing on the impeller side, the side with the dust cover should be installed toward the impeller, and the heat transfer oil should be injected before starting. The ball bearing on the coupling side is made of composite calcium-based high-temperature grease (ZFG-4). When the bearing is reinstalled, the side with the dust cover should also be installed toward the impeller side. Fill the grease with the installation (about 1). /2 ball bearing and housing space). After the bearing has been in operation for 48 hours, grease is added to the injection cup on the bearing cap with grease.
4. Do not use the gate valve on the input pipe to adjust the flow to avoid cavitation.
5. The heat transfer oil pump should not be operated continuously at a design flow rate lower than 30%. If it is necessary to operate under this condition, the bypass pipe should be installed at the outlet and the flow rate should be above the above minimum value.
6. Always check the loose ground of the anchor bolts, whether the temperature of the pump casing of the heat transfer oil pump is consistent with the inlet temperature, the fluctuation of the outlet pressure gauge and the vibration of the pump.
7. Pay attention to the operation of the heat transfer oil pump. If it is found to be in the normal state, it should be processed in time.
8. Shutdown: Turn off the power. The inner liquid is emptied, cleaned and the impeller should be rotated 180 degrees periodically to prevent the shaft from deforming until the pump is completely cooled.
Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
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