car spontaneous combustion accidents
not only will bring car owners
serious economic losses
but also endanger life What are the causes of spontaneous combustion of cars?
What are the causes of spontaneous combustion of cars?
How to prevent them from being
Let’s learn about it together?
01
Oil circuit aging and joint loosening
Oil pipe aging and joint loosening will cause fuel leakage , which is very easy to cause spontaneous combustion.
02
circuit aging
When the power supply line is aging and the insulation layer is damaged, resulting in short-circuit , the strong current generated will ignite the insulating layer, and will ignite the interior . When switching contacts, plug connectors and other parts are used frequently for a long time, they will easily heat up due to the increase in resistance, and may eventually cause spontaneous combustion due to local overheating of .
03
Engine exhaust pipe high temperature
exhaust pipe three-way catalyst can reach 700-800℃, it is located at the bottom of the cabin, and it is very easy to cause spontaneous combustion if it comes into contact with external combustible materials (such as straw, plastic bags, etc.).
04
Engine tempering
Engine tempering refers to the fact that the mixture that has not been completely burned is discharged from the intake valve due to some fault and is accompanied by combustion, which may ignite the air filter and the intake manifold . The reason for tempering is generally due to excessive mixture or ignition system failure .
In addition to some fire hazards under the hood
There are also some things to pay attention to in the car!
1. It is generally because of cigarette lighter high temperature . The cigarette lighter can generate high temperatures and may ignite the interior.
2. The second is place dangerous items . For example, perfume, lighter, air freshener, magnifying glass ( reading glasses ) and other items may easily expand or explode under high temperatures or sunlight, or may cause high temperatures due to the concentration of light, which will ignite the interior.
3. Also, vehicles have been illegally modified or unprofessionally modified . Illegal modification, or modification by unprofessional personnel, may have hidden dangers in materials, line layout, circuit load, etc.
How to prevent car spontaneous combustion?
1. frequently check circuit and oil circuit . After three or four years of use, the wire will experience rubber aging and the wire resistance will increase and heat, which will easily short circuit.
For example: the battery terminal block loosens the contact due to impurities, oil pollution or corrosion, ignites the conductor insulation layer; the line contacts are loosened due to long-term impacts of vibration or sharp temperature changes).
2. Don’t modify privately. Irregular repair shops or do-it-yourself modifications may not meet the requirements in materials and circuit layout, which may bring hidden dangers. Therefore, professional and technical personnel must do it.
3. Pay attention to dangerous items . Lighters, air fresheners, vacuum aluminum cans, cosmetics, perfumes, mousse, etc. are easily expanded and exploded when heated, so it is best not to put them in the car.
4. judge in advance . Before a car burns, there will usually be a burnt smell, or blue or black smoke appears. If you find this abnormality, you should stop the car immediately and turn off the power.
What should be done when encountering car spontaneous combustion?
1. Stop the car immediately and turn off the engine, because turning off the power can quickly disconnect the oil pump and reduce gasoline combustion.
2. After turning off the power, quickly leave the burning vehicle.
3. After leaving the car, take the fire extinguisher to check the fire situation immediately. . Don’t rashly open the front hatch cover of the car . You should first open a small gap. After oxygen enters for a while, then slowly open it all with a fire extinguisher. If you open the cover suddenly, oxygen will enter quickly and the flame will suddenly become larger, which will easily burn yourself.
4. When extinguishing fire with a fire extinguisher, you should aim at the fuel tank and burning part to cool down and extinguish the fire to avoid explosion. also call 119, 122 or 12122 (highway) to call the police for help .
(Source: Hunan Emergency Management)
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