máj . 22, 2025 08:37
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Explosion accident
Explosion accidents caused by welding may be caused by a variety of factors. The following are several typical cases and their causes:
| Case | Cause |
| Tank truck welding explosion | Without thorough cleaning, replacement, or fire analysis, welding was performed after the flammable and explosive gases mixed with air reached a certain concentration |
| The oxygen cylinder and liquefied gas tank exploded during welding by the operator | The oxygen cylinder and liquefied gas tank exploded during welding, and the worker died on the spot |
| The pressure reducer caught fire and burned during the welding operation of the gas welder | When using a leaking welding torch, the oxygen cylinder valve and the pressure reducer were opened to adjust the oxygen pressure. Grease stuck to the pressure reducer, causing flashback and violent combustion |
| Explosion of acid tank during welding repair | The tank material is not acid-resistant steel. Under the action of dilute sulfuric acid, the iron in the tank material reacts chemically with the acid, and the welding spark ignites the mixed gas in the tank, causing an explosion. |
| Welding and repairing diesel tank explosion | After the diesel in the diesel tank was drained, it was not cleaned, and the inlet cover was opened for welding. The explosion occurred instantly, killing 3 people on the spot |
| The alcohol barrel that was repaired by welding exploded | The alcohol barrel was not cleaned before welding, and there was alcohol residue in the barrel, which ignited and exploded during gas welding |
These cases emphasize the importance of strictly following safety procedures when performing welding operations, including but not limited to adequate preparation of the working environment, proper use of welding equipment, and safety measures when working in special environments (such as confined spaces).
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