1. The inlet of the circulation pump shall be provided with a coarse filter. Any heat transfer oil passing through the pump must be filtered through the filter to remove impurities and foreign matter. A fine filter should be installed on the main pipe bypass of the heating system to filter and suspend the heat transfer oil. Carbon particles and high polymers;
2. The hard seal of the circulating pump equipment is reliable and strictly prevent leakage. If any leak is found, the pump inspection should be stopped immediately and repaired;
3. The cavitation allowance of the circulating pump is smaller than the cavitation margin of the device of the circulation system, so that cavitation occurs during the operation of the pump;
4. The flow rate, head and related power of the circulating pump shall be matched with the oil consumption of the heating system and the requirements for its resistance drop;
5. Circulating pumps with their respective power sources can be equipped, one for use and the other for standby;
6. The circulating pump should be adapted to the characteristics of the temperature change of the heat transfer oil. The temperature rise must be gradual. Before the high temperature operation, the pump should be preheated by the heat transfer oil gradually heating up in the system. In addition, the use should be noted that it must not be When the pump is stopped at high temperature and the system stops working, wait until the temperature of the heat transfer oil drops below 100. The pump can be stopped. When the pump is stopped for a long time, the heat transfer oil in the slurry pump should be drained. Always check it regularly. Rotate the rotor 180°.