Bipolar high-power-density air-water cooling positive-pressure type explosion-proof induction motor

Abstract

The invention discloses a bipolar high-power-density air-water cooling positive-pressure type explosion-proof induction motor which comprises a motor main body and an air-water cooling system installed on the motor main body, wherein the motor main body comprises a machine base, a rotor and a stator. The top of the machine base is provided with an air outlet hole and an air inlet hole which are connected with the air-water cooling system. The air-water cooling system comprises a cooler outer cover arranged above the motor main body, and an air inlet hole is formed in the position, corresponding to the air outlet hole, of the bottom of the cooler outer cover. Cooling pipe groups arranged in a plurality of rows are horizontally arranged in the cooler outer cover in a penetrating mode, a cooling liquid is communicated in a pipe of the cooling pipe group. The cooling pipe group is located above the air inlet hole, and an air separation cylinder for guiding airflow from the air inlet to thecooling pipe set is arranged between the cooling pipe group and the air inlet hole, and an air outlet is formed in the position, corresponding to the air inlet hole, of the bottom of the cooler outercover. The center height of an existing bipolar air-water cooling positive-pressure type explosion-proof motor can be reduced, the cost is reduced, and the efficiency of the motor is improved.

Description

technical field [0001] The invention belongs to the technical field of electric motors, and in particular relates to an air-water-cooled positive-pressure explosion-proof induction motor with two high power densities. Background technique [0002] The existing center height is 710mm, the number of poles is 2, and the high power density positive pressure explosion-proof motor generally adopts a box structure. Compared with the air-air cooling positive pressure explosion-proof motor, the air-water cooling series motor has the same center height. High power, high efficiency, low noise, low starting current, light weight and other advantages, the power density can be greatly improved easily. At present, the central height of 630mm and the number of poles are 22-pole air-cooled positive pressure explosion-proof motors used in petroleum, petrochemical and other explosion-proof fields. Most of them use imported explosion-proof motors such as Siemens and ABB. Large, the power level...

AI Technical Summary

Problems solved by technology

At present, the central height of 630mm and the number of poles are 22-pole air-cooled positive pressure explosion-proof motors used in petroleum, petrochemical and other explosion-proof fields. Most of them use imported explosion-proof motors such as Siemens and ABB. Large, the power level is equivalent to the domestic 710mm center height motor, which is generally difficult for domestic motor manufacturers to meet

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