The whole series adopts oxy-free copper rod rotor

Second, the use of four-fold sand filter device effectively reduce the early wear of submersible motor caused by large sand content in water.

Third, the motor overload capacity is strong, energy-saving effect is remarkable.

Fourth, the rotor spindle using 45# round steel normalizing, tempering treatment, limited to increase the strength and toughness of the spindle.

5. The rotor spindle sleeve adopts 3rc13 steel sleeve to ensure the convenience of maintenance and the reliability of mechanical friction.

Six, the radial bearing according to the power size, respectively using 525 copper alloy, Philippus, babbitt three materials.

7. The stator shell is made of thick-wall steel pipe, which is welded by automatic frequency conversion control carbon dioxide protection welding, which effectively improves the strength of welding.

8, the mechanical processing reaches B level (1 level), to ensure the overall reliability of the machinery.

It is mainly used for farmland irrigation and human and animal water in plateau mountainous areas, and can also be used for water supply and drainage in cities, factories, railways, mines and construction sites.

1, power requirements:

(1) The rated frequency is 50 Hz, and the rated voltage at the motor end should be guaranteed to be 380 V 5% three-phase AC power supply (if the user voltage is 660)

Volt hour requires a special order).

(2) The transformer load power should not exceed 75% of its capacity.

(3) When the transformer is far from the well, the voltage drop of the transmission line should be considered. For the motor with a power greater than 45KW, the distance from the transformer to the wellhead should not exceed

After 20 meters, for the submersible electric pump with high elevation, due to the long power line, the line pressure drop loss must be considered, and the power line specification is required to match the cable gauge

Big two grades. A single transformer is used for power supply, and the output voltage of the transformer is required to be 400V-440V

2, water quality requirements:

(1) Generally non-corrosive water.

(2) Sand content in water is not more than 0.01% (mass ratio)

(3) PH value in the range of 6.5-8.5.

(4) The chloride ion content in water is not more than 400 mg/L

(5) Hydrogen sulfide content is not more than 1.5 mg/l.

(6) The water temperature requirement of QJ pump is not higher than 20℃, and the water temperature requirement of QJR type heat-resistant submersible pump is not higher than 100℃.

(7) Does not contain oil.

3, well requirements:

Straight, smooth, no bulge or pipe dislocation phenomenon, well diameter is not less than the corresponding frame number.