Explosion-proof motor is a kind of motor that can be used in flammable and explosive factories and does not generate electric sparks during operation. Explosion-proof motors are mainly used in coal mines, oil and gas, petrochemical, chemical and other industries. In addition, it is also widely used in textile, metallurgy, city gas, transportation, grain and oil processing, papermaking, medicine and other departments. As the main power equipment, explosion-proof motors are usually used to drive transmission machinery such as pumps, fans, and compressors.
Do you know the difference between explosion-proof motors and ordinary motors? Next, the differences between them will be shown from three aspects.
different application scenarios
Explosion-proof motor is a motor that can be used in flammable and explosive places and does not generate electric sparks during operation. Explosion-proof motors are mainly used in coal mines, oil and gas, petrochemical, chemical and other industries.
General-purpose motors can be used for electric motors and other general-purpose small mechanical equipment (including washing machines, electric fans, refrigerators, air conditioners, tape Recorders, video Recorders, DVD players, vacuum cleaners, cameras, hair dryers, electric shavers, etc.), including various small machine tools, small machinery , medical equipment, electronic equipment, etc.) motors.
Different explosion-proof performance
Universal motors do not have flameproof enclosures. May explode on contact with ignition sources such as sparks, electric arc, dangerously high temperatures inside enclosure. When explosive flames or hot gases are transmitted through the gap between joints, the surrounding explosive gas mixture may be ignited.
On the motor structure that does not generate arcs, sparks or dangerous high temperatures under normal operating conditions, some mechanical, electrical and thermal protection measures are taken to further avoid the risk of arcs, sparks or high temperatures, thereby ensuring its explosion-proof safety.
different structure
The whole series of explosion-proof motors adopt F-class insulation, and the temperature rise is rated according to B-class. The noise limit is lower than that of YB series, close to Class I noise of YB series, and the vibration limit is comparable to that of YB series. The enclosure protection level is upgraded to IP55. The whole series adopts low-noise deep groove ball bearings, and the motor is equipped with oil injection and oil discharge devices when the height of the center of the base is more than 180mm. There are two types of motor radiators: parallel horizontal distribution and radial distribution, with parallel horizontal distribution being the main one.
There are many types of explosion-proof motors. In the environment of explosion-hazardous areas, in order to ensure safe production, the selection of explosion-proof motors is very important. When choosing an explosion-proof motor, you must understand its explosion-proof performance. Only by choosing a suitable explosion-proof motor can we ensure safe use and not waste resources.
