Submersible motor driven submersible centrifugal pump for pumping underground crude oil, the whole system is the most complex part. At present, submersible centrifugal pump applications motor for diode three-phase squirrel-cage asynchronous motor. The si

Submersible motor driven submersible centrifugal pump for pumping underground crude oil, the whole system is the most complex part. At present, submersible centrifugal pump applications motor for diode three-phase squirrel-cage asynchronous motor. The single 's day length in 1.5 - 10m, large power multiple series connection mode, can be according to the down into the well casing with different series of motor. Submersible motor for vertical suspension structure, mainly composed of a stator, rotor, bearings, couplings and ancillary components. The entire weight of the rotor in motor head thrust bearings bear. Motor stator, rotor for the length of multistage tandem type, every two rotor between the centering bearing, ensure that the deflection during the operation process of the motor does not exceed the limit size. Submersible motor is closed, the clearance between rotor stator, filled with refined mineral oil, insulation, lubricating, cooling effect. Daqing oil pump power of God limited can be applied to the production of 41/2",51/2",7 ",85/8" above the submersible motor casing. In general, submersible motor working voltage of 200V - 3500V, current of10 120A, its power and proportional to length. Submersible motor speed when 50HZ is up to 2850- 2900r/min. Daqing oil pump power of God limited production of motor insulation treatment in one of two ways: dipping paint and epoxy. Dipping type motor temperature grade two, grade F ( temperature 155º C ) and H ( temperature 180º C ). Epoxy motor temperature grade F ( temperature 155º C ). If the user needs to apply to 150 º C above the well temperature, need special offers. Daqing oil pump power of God limited production of submersible motor surface flow rate requirement of not less than0.3m/s. Otherwise it shall cover the motor selection of surface flow velocity is higher than the normal value. Under special circumstances, may be required of the motor with heat radiating device, improve the heat dissipation capability of the motor itself. Daqing oil pump power of God limited company in addition to the above oil submersible motor, but also the production of national patent of rare earth permanent magnetic submersible motor. The motor power than an equivalent ordinary oil submersible motor increasing power30%. The motor speed is up to 2980r/min. Motor efficiency can reach 88%, power factor 0.92. The input power of the motor is reduced, and greatly reduces the motor reactive power, electric energy saving effect can be achieved. The motor with a self-starting capability. The motor is suitable to90 ºC below the well temperature requirements.

Daqing Oilfield Powerlift Pump Idustry Co., Ltd.

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