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Because the heat pump unit must ensure that the outlet water temperature of the evaporator cannot be too low under the heating condition, a temperature sensor is set on the return pipe of Shanxi deep well pump, and the set temperature is tjh. When the return water temperature on the water source side of the well is greater than tjh value, the deep well pump controller sends a signal to the frequency converter to reduce the current frequency. The frequency converter reduces the frequency of the i
(1) Shanxi submersible pump should be kept in the warehouse, the warehouse should be dry and ventilated, open yard, but the ground should be dry, the bottom of the pile should be 30~40cm high. Water and wind and sand invade people and cause corrosion. To protect the motor from moisture. Water pumps without motors can also be stored in material sheds or in the open air. They should also be covered tightly and firmly with rainproof equipment to prevent rain.
(1) Shanxi mine pump itself and all parts are complete and complete.
(2) The connecting bolts between each part of the mine submersible pump are complete, and the connection is tight, without rust and corrosion.
(3) the safety protection device of Shanxi mine pump is complete and stable.
(4) The pressure gauge, ammeter and other instruments of the mine submersible pump are complete and responsive, and the measuring range meets the calibration period.
(5) The inlet valve, outlet valve, lubricatio
Shanxi submersible pump is an important equipment for deep well water lifting. Use when the entire unit submersible work. Extracting groundwater to the surface is used for domestic water, mine rescue, industrial cooling, farmland irrigation, seawater lifting, ship load transfer, fountain landscape, hot water submersible pump for hot spring bathing, groundwater extraction from deep wells, and water lifting projects such as rivers, reservoirs and canals. It is mainly used for farmland irrigation a
Shanxi submersible pump how to pump to solve the cavitation phenomenon of water pump, pressure reduction is the condition of cavitation, there are a large number of bubbles in the water rapid rupture is the internal cause of cavitation. Therefore, in order to improve and reduce the cavitation damage of the main drainage pump impeller in coal mines, it is necessary to increase the inlet pressure of the pump.
the liquid at a certain temperature, reduce the pressure to the temperature of the vaporization pressure, the liquid will produce bubbles. This phenomenon of generating bubbles is called cavitation.
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