Deep well submersible pump temperature difference control method

Deep well submersible pump motor and pump is straight league diving operations carry water machine, it applies to obtain from a deep well of groundwater, can also be used for rivers, reservoirs, canals and other water engineering: primary human and animal use water for irrigation and plateau mountainous area, also for cities, factories, railways, mines, construction site water supply and drainage. Because of deep well pump is operated by motor and pump body directly into the water, it is the use of safety and reliability will directly affect the deep well pump and operation efficiency, therefore, safe and reliable features high deep well has become the preferred.

Deep well submersible pump temperature difference control method. Because of the heat pump units under heating conditions, it is necessary to ensure that the evaporator water temperature too low, so in the deep well water temperature sensor is set on the pipe, TJH set temperature. Well water side return water temperature is greater than the TJH value, the deep well pump controller drops announced to the inverter current frequency signal, the frequency of the inverter input power, deep well pump revolutions reduced, water supply pump, shaft power and the input power of the motor are down, and then achieved the intention of energy saving. When water side return water temperature is lower than the TJH value, frequency control.