Explosion-proof motor is mainly used in coal mine, oil and gas, petrochemical and other industries. This is because the explosion-proof motor does not produce electric spark during operation, so it is a kind of motor that can be used in flammable and explosive places. In addition, it is also widely used in textile, grain and oil processing, papermaking, metallurgy, city gas, transportation, medicine and other departments. Explosion-proof motor is the main power equipment, usually used to drive pumps, fans, compressors and other transmission machinery.

1. Explosion-proof motor is generally used for inflammable and explosive occasions.

2. The sealing of explosion-proof motor junction box is better than that of ordinary motor.

3. The low protection grade of explosion-proof motor is IP55, and the ordinary motor is IPIP23, IP44, IP54, IP55, IP56, so it can be distinguished from the appearance.

The rated voltage, rated current, power and speed of the explosion-proof motor are the same as those of the ordinary motor. The difference is that explosion-proof motor has explosion-proof mark :Ex.

Product category

According to the explosion-proof principle

It can be divided into flameproof motor, increasing safety motor, positive pressure motor, sparkless motor and dustproof and explosion-proof motor.
Product range and its characteristics

1. Explosion-proof motor

It can explode when it comes into contact with ignition sources such as sparks, arcs and dangerously high temperatures inside the housing. At this time, the flameproof housing of the motor will not be damaged or deformed, and the explosive flame or hot gas will not ignite the surrounding explosive gas mixture when it comes out of the gap between the joints.

2. Increased safety type explosion-proof motor

For this type of explosion-proof motor, some mechanical, electrical and thermal protection measures are taken for the motor structure that will not produce arc, spark or dangerous high temperature under normal operating conditions. In this way, it can further avoid the danger of electric arc, spark or high temperature under normal or recognized overload conditions, so as to ensure its explosion-proof safety.

3. Positive pressure explosion-proof motor

It is a positive voltage electrical equipment.

Its structural features are:

(1) With a complete ventilation system, the motor has no structural dead Angle that can affect ventilation.

(2) The shell and pipe are made of noncombustible material and have sufficient mechanical strength.

(3) Keep the shell and main pipe have enough positive pressure relative to the outside atmosphere.

(4) The motor must be equipped with safety protection devices (such as time relay, flow monitor) to ensure adequate ventilation, and must be equipped with automatic protection or alarm devices for negative pressure air in the shell.

(5) The quick door or cover on the shell should be interlocked with the power supply.