Explosion-proof motor

2023-02-15

YBX3-90S-2 explosion-proof motor is a kind of motor that can be used in flammable and explosive places and does not produce electric sparks when running. Explosion-proof motors are mainly used in coal mines, oil and gas, petrochemical and chemical industries. In addition, they are also widely used in textile, metallurgy, city gas, transportation, grain and oil processing, paper making, medicine and other sectors. As the main power equipment, explosion-proof motors are usually used to drive pumps, fans, compressors and other transmission machinery. Explosion-proof motors are very dangerous special electrical equipment. Once rust spots and rust patches are produced on the explosion-proof surface, making poor contact with the surface, harmful media will take advantage of the opportunity to enter the machine and corrode the internal parts and winding insulation. Once the explosion-proof motor loses its explosion-proof function, the consequences are unthinkable. Therefore, it is important to find, repair and eliminate explosion-proof faults in motors in time.

The causes of explosion-proof motors and troubleshooting methods are roughly as follows.

① Improper maintenance and installation of explosion-proof motors leads to severe corrosion of the explosion-proof surface.

It is therefore necessary to use the correct installation process and to carry out careful inspection and maintenance in accordance with the maintenance system.

② The explosion-proof surface of the explosion-proof motor has suffered severe mechanical damage.

This is caused by incorrect installation or transport and lifting. If it is difficult to repair, the motor must be replaced with a motor of the same type.

③The seal of the explosion-proof motor is damaged and has no sealing effect.

This is caused by improper tightening of the screws. If the screws are tightened too tightly and with too much force, the seal will break; otherwise, it will cause the seal to fracture. If the seal is made of a poor material, premature damage will result. In this case, please use qualified sealing material for replacement. ④The explosion-proof surface of the explosion-proof motor is severely deformed.

This is caused by inadequate machining accuracy of the part, improper material handling and improper operation. Depending on the pattern accuracy and the roughness of the machining process, uniform forces must be used during mounting and machining. When the explosion-proof surface is severely deformed, it becomes more difficult to repair the motor. If necessary, replace the motor with a new one. Slight deformation is caused by improper installation and can be reassembled.

⑤ Explosion-proof motors are poorly maintained on a daily basis.

Performance is in the following areas: excessive dust, which cannot be cleaned in time. Loose screws, which are not checked and tightened in time.

Damp insulation layer and reduced insulation resistance.

Explosion-proof surfaces are corroded, etc. Therefore, inspection and maintenance work must be carried out carefully according to maintenance regulations.

⑥Explosion-proof motors overheat.

The usual causes and treatments for overheating motors are as follows: faulty ventilation system; damaged or wrong type of fan. The solution is regular inspection and maintenance, and problems should be dealt with promptly. Motor bearing failure can cause the motor core to sweep, which equates to motor overload. Qualified bearings should be replaced promptly.