First, what kind of injury will be caused by the general explosion accident?
1 . Blast
Blasting burns are essentially composite wounds of burns and blows that occur within 1 to 2 meters of the blast center and are generated by explosions.
The high temperature gas and flame cause. The severity depends on the extent of the burn.2 . Burst injury
After the explosion, the explosives directly act on the human body or because the human body is close to the explosion center, causing human tissue rupture, internal organs rupture, and limbs.
Body ruptured, blood flew, lost its complete shape. Some of them are caused by explosives penetrating the body cavity and forming penetrating wounds, resulting in large Bleeding, fractures.3 . Blast injury
Also known as an impact injury, it is injured from 0.5 to 1.0 meters away from the center of the explosion and is the most serious type of damage caused by an explosion. Accept
Principle of injury: The explosives produce high-speed and high-pressure at the moment of explosion, forming shock waves and acting on the human body to generate impact injuries.The shock wave is several times larger than the normal atmospheric pressure, and it affects the human body and causes damage to many organs of the whole body. At the same time, it is formed due to high-speed airflow.
Dynamic pressure caused people to fall and get hurt and even to break off.2. How to protect yourself once an explosion occurs?
1. Quickly "understand" the most correct
In the event of an explosion, that is, after the bang, don't rush because the explosion is likely to happen more than once, if not
If you blindly run before you identify a safe area, you may be injured by the second explosion. So what do you do? The step is to “kick down†- keeping the body low can not only minimize the damage caused by the explosion, but also prevent Into the toxic smoke.2. Choose the correct contact method
When an explosion occurs, one should choose to stay in an open space rather than a confined space; try to increase the explosion safety distance and reduce
The frequency and time of direct contact with explosives.3. Finding protective objects to do personal protective measures
First, we should choose shelters that can effectively block, reflect, or absorb explosive shock waves, such as hiding in soil walls, buildings,
Behind the objects such as cars and furniture, specific values ​​for the safety distance can be appropriately reduced. However , we must avoid the thinnest of these objects Weak parts prevent damage caused by fragment impact.Second, do a good job of physical protection , such as wearing a hard hat, wearing explosion-proof clothing and other protection may be fatal key parts.
4. Effective use of the possible gap effect of explosion
Generally in the explosion-proof building , we call the building unit whose structural strength is weaker than other units as a gap.
The notch effect refers to the notch where the strength of the building structure is the weakest , and the shock wave pressure here is much greater. In other places around, if the human body and important instruments and equipment are in the gap , it will be seriously injured or damaged. In the explosion When blasting, try to keep away from the front and back of the doors and windows, the pipe mouth, and the ditch, and the vicinity thereof, to reduce the damage caused by the shock wave.The information in this article comes from the Internet and was reorganized and edited by China Rescue Equipment Network.
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