Self-help knowledge for risk avoidance-how to evacuate theater fire

1. Prevent poisoning during escape. Due to the large amount of plastics, fibers and other decorative objects on the four walls and top of the dance hall, toxic gas will be generated in case of fire. Therefore, during the escape process, you should avoid shouting loudly, prevent smoke from entering the mouth, and quickly identify the direction of the safe exit.
2. Some theaters are equipped with an emergency exhaust button. In an emergency, you can press the button to turn on the ventilation equipment and discharge the toxic gas in the room.
3. Use low posture to walk or crawl forward to reduce the harm of smoke to the human body.
4. The emergency exit gate can be opened with force.
5. Be cautious about entering entertainment venues where there are single entrances, underground spaces, damaged fire areas, blocked safety passages and stairs, and locked safety doors.
6. Look at the location of various fire extinguishing and evacuation appliances such as fire hydrants, descent machines and rescue bags.

Expert Reviews

Song and dance halls and theaters are public places for people to perform entertainment activities. Due to the large internal space and few safety exits, most of them use flammable materials as decorative materials. When a fire occurs, they will quickly burn to a violent level. Moreover, the density of customers is very high. Most of them are open at night. In addition, the lights are dimmed. People are panicked and chaotic when they catch fire, and they are rushing to escape. In the chaos, crowding trampling and crushing and trampling accidents are easy to happen, causing casualties.

Therefore, as long as you keep a clear head, identify the direction of the safe exit and take some emergency evacuation measures, and actively find multiple ways to escape, you can master the initiative. In the case where all conventional escape routes are blocked by fire or people are blocked, etc., they must be passive to take the initiative, wisely and flexibly choose safe and effective methods to escape according to the environment and fire characteristics.

(Consultant in this issue / Luo Yuan, Director of Fire Department of Beijing Municipal Public Security Bureau Fire Department)

Source of information: Qianlong.com


A compound formed by the substitution of the hydroxyl group of a carboxylic acid (or amine) in the carboxylic acid, or the derivative of ammonia (or amine) with the substituted of the acyl group. Hydrogen bonds can form hydrogen bonds in the amino acid of amide, and the association between molecules can make the boiling point of amide be higher than the corresponding carboxylic acid. Amide is widely distributed in nature, protein is the amide bond ─ CONH ─ (or called a peptide bond) connected to the natural high molecular compound. The amide is heated for a long time in strong acid, which can be hydrolyzed to carboxylic acid and ammonia (or amines). The amide can be obtained from the partial loss of water or from the ammonia solution of acyl halide, acid anhydride and ester. Nitrile can be partially hydrolyzed and stopped in the amide phase. 
Amide is mainly used as an industrial solvent, and the pharmaceutical industry is used to produce vitamins and hormones, as well as in the manufacture of insecticidal. In organic reaction, dimethylformamide is not only used as a solvent for reaction, but also an important intermediate for organic synthesis. Pesticide industry can be used to produce insecticidal. 


Industrial Amide

Industrial Amide

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