What is "protective combustion"?

21st Century Business Herald reporter Peng Qiang Beijing report

In the early morning of June 18, a fire in the ethylene glycol device in Shanghai Petrochemical and Chemical Engineering in Jinshan District, Shanghai. After the accident, the local fire department quickly dispatched rescue personnel to rush to the scene to deal with it, and the fire was controlled since then.

Shanghai Petrochemical's official Weibo report said that after the fire occurred, the monitoring of volatile organic matter in the factory and external regions was normal, and no impact on the surrounding water environment was found. After the fire control, "protective burning" is being implemented.

In the report of Shanghai Petrochemical, a common phrase- "protective combustion" has aroused the attention of many netizens. What is protective combustion?

The so -called "protective combustion" is not a new word, but a way of dealing with fire rescue personnel based on the situation of the accident site, which can reduce the price for forcibly extinguishing the fire. The most important thing is to prevent more serious seriously. The second explosion.

Conventional small fires often need to extinguish the bright fire as soon as possible to avoid further losses and personnel damage, but the fire conditions of chemical devices should be more complicated.

Fire and explosion accidents in chemical parks often have the characteristics of complex internal environment, many types of tanks, staggered pipelines, and many chemical products. Sometimes there are high temperature, high pressure, toxic and harmful characteristics. The fire and explosion accidents often show the characteristics of fierce combustion, strong impact, strong flame radiation, etc., which will constitute great challenges to fire -extinguishing rescue operations or the personal safety of firefighters.

A staff member inside the chemical safety system told the 21st Century Business Herald reporter that after the fire of the chemical device, it is often necessary to find out the fire site and the source of the burial, and then turn off the relevant device valves in time, cut off the burial and heat sources, and and the heat source, and and the heat source, and and the heat source, and the heat source, and the heat source, and the heat source, and the heat source, and the heat source, and the heat source, and the heat source. Use a fire device for cooling and isolation.

When the fire has been effectively controlled, protective combustion can be selected. In order to completely extinguish the fire in a short period of time, it can pay a large price, and it can also burn the residual combustion and dangerous matter. There are also volatile explosives, fire sources, and high temperature heat sources. Suddenly, fire extinguishing can also cause a second explosion, causing new losses.

During the protective combustion, the fire and rescue departments still monitor the fire at the scene to prevent the fire from getting out of control and prevent the risk of the flames from extinguishing.

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