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Eliminating these causes will greatly reduce the incidence of fire
Release time:
2020-08-11
Obviously, if these reasons are eliminated, the incidence of fire will be greatly reduced: 1. A clean motor is free of dirt and flammable materials and can be fully cooled without overheating, so it is necessary to remove the grease that pollutes the coil frequently. Otherwise, the grease will cover the coil for a long time, accelerating the aging of the insulating material and causing insulation damage, causing inter-turn leakage and spark splashing, which is easy to cause fire.
Obviously, if you eliminate these causes, will greatly reduce the incidence of fire:
1. There is no dirt and flammable materials on the clean motor, which can be fully cooled and will not overheat. Therefore, it is necessary to frequently remove the grease that pollutes the coil. Otherwise, the grease will cover the coil for a long time, accelerating the aging of the insulating material and causing insulation damage, causing inter-turn leakage and spark splashing, which is easy to cause fire.
2. If there is dirt in the cooling and ventilation gap of the motor, it will inevitably make the ventilation worse and may cause the motor to overheat. This will cause a fire due to the following three reasons: A. The dirt is gradually scorched and carbonized and ignited; B, due to heat accumulation, the insulation material of the coil is ignited; C, the insulation material of the coil accelerates aging due to overheating and generates leakage, sparks, therefore, if the dirt inside the motor is removed, the cooling effect will be greatly improved.
3. Overheating due to overload, causing dirt such as coil insulation and grease to be ignited and burned.
4. Bearing fever is caused by poor installation, insufficient oil and lubricating oil. Due to the failure to meet the normal operation requirements or the motor is stuck, the starting current of the motor is too large and the coil suddenly burns.
5. When the brush produces sparks, it must be replaced with a new one. If necessary, the motor commutator should be trimmed and polished. The brush parts must also be cleaned regularly. Sparks and carbon powder will damage the commutator of the motor and ignite flammable threads and other dirt.
6. Due to the vibration of the motor terminals will be loose, regular cleaning, can be a good check, and the loose terminals tightened.
On-line cleaning and maintenance solutions for generators and motors: in the past, the stator and rotor of generators and motors were mostly cleaned with solvents such as "gasoline and alcohol". however, these solvents are flammable and unsafe, and cannot be completely volatilized. their residues will corrode insulation, and of course they cannot be cleaned with electricity. due to the poor explosion resistance of these solvents, the cleaning technology can only be brushed manually carefully, with high labor intensity, low efficiency and poor effect.
Many enterprises pay more and more attention to the safety performance of cleaning and maintenance, using "carbon tetrachloride" solvent cleaning, but "carbon tetrachloride is harmful to the human body, and can only be brushed manually carefully, with high labor intensity, low efficiency and poor effect.
Key words:
Danyang Jianfeng New Material Co., Ltd.
