Maintenance Points of Chemical Explosion-proof Electrical Equipment

In the process of chemical production, the operation safety and explosion-proof performance of explosion-proof electrical equipment play a crucial role in the safety of chemical production. Therefore, it is necessary to regularly check and maintain the explosion proof vfd electrical equipment in use, and find potential safety hazards and eliminate them in time. In order to ensure that there is no omission in equipment maintenance and inspection, a maintenance file for explosion-proof electrical equipment should be established to ensure that each equipment is maintained by professional technicians, and the maintenance and inspection time should be recorded accordingly. It should be reported in time, and preparations for updating equipment should be done in advance.

Ⅰ. Pay attention to the safety inspection of explosion-proof electrical equipment

The safety inspection and maintenance of explosion-proof electrical equipment mainly include the following aspects:

1. Visual inspection of appearance: mainly conduct daily inspection on the appearance damage and integrity of explosion-proof electrical equipment.

2. Professional equipment testing: In view of the potential safety hazards found during maintenance, the explosion-proof electrical performance and safety are tested through professional electrical maintenance equipment, so as to determine whether there are hidden dangers in the operation of the equipment. Professional equipment testing work can generally be carried out by means of regular testing.

3. Special inspection: This inspection work is generally carried out during the period when the chemical plant arranges equipment maintenance, and can also be targeted to carry out special inspection work after the general damage to the explosion-proof electrical control equipment is found.

Ⅱ. The fastening of the shell of explosion-proof electrical equipment is an important link to ensure the explosion-proof performance

In the maintenance of explosion-proof electrical equipment, our power control equipment company suggests that attention should be paid to the solid inspection of the shell of explosion-proof electrical equipment. If the explosion-proof electrical equipment, such as flameproof motor is installed, used, and maintained, because its fasteners are not tightened, or the torque is unbalanced, the gap between the explosion-proof mating surfaces of the equipment will increase and its explosion-proof performance will be reduced. Therefore, after the equipment is installed or repaired, a torque wrench should be used to tighten the fasteners to ensure that the fasteners are evenly stressed to meet the relevant technical requirements. In the process of installation and maintenance, the fastening of the casing should be regarded as a key point of the maintenance work.

At the same time, for the explosion-proof electrical equipment in operation, the sealing condition should be checked and maintained regularly. If the explosion-proof coordination is not tight, it should be dealt with immediately to ensure that the gap between all joints of the equipment shell is smaller than that produced in chemical production. flammable gas safety clearance. Make sure that the flammable gas flows inside the equipment, and after being ignited by electrical sparks, the flame can still be confined inside the electrical equipment shell, and does not cause harm to external production equipment and personal safety.