How to judge the kilowatt of the submersible pump and what is the maximum wattage of the submersible

Submersible pump head calculation method: The effective energy obtained by the unit weight of liquid after flowing through the pump. It is an important working performance parameter of the pump, also known as the pressure head.

It can be expressed as the increase of the pressure energy head, kinetic energy head and potential energy head of the fluid, i.e., h=(p2-p1) g+(c2 2-c1 2) 2g+z2-z1 where h—head, m; P1, P2—the pressure of the liquid at the inlet and outlet of the pump, Pa; C1, C2—the flow rate of the fluid at the inlet and outlet of the pump, m s; z1, z2 - inlet and outlet height, m; Liquid density, kg m3; g—acceleration due to gravity, m s2. For more professional answers, please contact Sichuan Mingzhu Pump Industry, product service: Sichuan Mingzhu Pump Industry is a professional pump manufacturer integrating R&D, design, production, sales, maintenance and after-sales service.

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To judge the power of a submersible pump, the following conditions are required:

1. The rated working voltage of the submersible pump motor.

2. The speed of the submersible pump motor.

3. The number of power phases required by the submersible pump motor, three-phase or single-phase.

With the above conditions, you can judge the motor power of the submersible pump in combination with the wire diameter of the motor winding.

Your pump is still a single or three-phase, and the maximum single item is three, use a multimeter to card the current, p= 3uicos

The submersible electric pump works underwater. It has a compact structure, heavy yard and light weight, and does not pump water from the well and does not need a long transmission shaft. Therefore, the submersible electric pump is very suitable for well water irrigation in rural areas.

The most widely used is the JQB submersible electric pump. This submersible electric pump uses waterproof measures such as mechanical seal or air seal to keep the inside of the motor dry and free from water intrusion. The following points should be paid attention to when using:

1) Check whether the seal at the air release hole, water discharge hole, oil drain hole and cable joint of the pump is loose, and if it is loose, it must be tightened.

2) Check the insulation resistance with a 500 volt shake meter, which should not be less than a megaohm, if it is lower than this value, open water, vent holes, and dry or sun-dry.

3) Check the cable, if it is broken or broken, it should be replaced, so as not to leak the electricity.

4) Check all circuits and switches before starting to see whether the wiring is correct and reliable. Then idle on the ground for 3 5 minutes (the time should not be too long, so as not to damage the parts or burn the mold stove to damage the motor winding), and check whether the motor is in the correct direction, if there is no problem with the above, it can be put into water.

5) When the submersible electric pump is put into the water, the cable must not be stressed, and the rope should be tied to the wooden frame of the wellhead. The maximum depth to which the electric pump is placed in the water is 3 meters, and the minimum depth is meters (from the center of the impeller).

6) During operation, the change of water level in the well should be observed frequently. The motor must not be exposed to the water, nor can it fall into the mud, so as not to affect the heat dissipation of the motor and burn out the windings. The electric pump should be raised and lowered at any time with the change of water level in the well, and if the water volume is reduced or interrupted, the cause should be immediately identified or stopped for inspection.

The cable should not rub against the well wall, so as to avoid the well water from penetrating into the motor along the cable core after the cable is worn.

7) After 50 hours of use, check whether the seal is good, and check once a month in the future, and check whether the shielding sleeve between the rotor and stator of the motor is well sealed.

8) After one year of use, the rust of the pump should be checked, and the rust should be removed and painted.

The maximum wattage requirement for a 220V submersible pump depends on the rated voltage and current of the power supply.

Generally speaking, the maximum power of a 220V electric open volt source is 220V x 10A = 2200W.

Therefore, the maximum wattage requirement for a 220V submersible pump should be less than or equal to 2200W.

It is important to note that the power of a submersible pump depends not only on the rated voltage and current of the power supply, but also on the design and purpose of the pump.

Therefore, when choosing a submersible pump, you should choose the appropriate power and model according to the actual needs.

If you need to operate a submersible pump, you can do so by following these steps:

1.Confirm the rated voltage and current of the power supply and select the appropriate submersible pump.

2.Place the submersible pump in the water, making sure that both the inlet and outlet of the pump are in the water.

3.Connect the power supply, pay attention to the correct wiring, and avoid electric shock and short circuit.

4.Turn on the power switch to start the submersible pump.

5.During use, pay attention to observe the running status of the pump, and stop using it in time if there is any abnormality and check the cause of the failure.

6.After use, the submersible pump should be taken out of the water, cleaned and stored in a dry and ventilated place.