Fire science and technology research in China is mainly related to the field of fire science, fire technology and fire soft science, the research institutions of China are directly under the Ministry of Public Security of Tianjin, Shanghai, Shenyang and Sichuan Fire Research Institute. The four Fire Research Institute research directions are: Tianjin are mainly responsible for the fire basic theory, fire engineering, fire codes, fire-resistant components and fire extinguishing agent; Shanghai are mainly responsible for extinguishing theory, the fire fighting system, fire fighting technology and tactics, fire protection technology research; Shenyang are primarily responsible for the theory of fire detection, automatic alarm technology, fire communications; Sichuan are mainly responsible for building fire theory, building fire technology, materials retardant ; in recent years, China also carries out a Ha Long replacement technology research.
Composition and Functions of Fire Fighting System
1, Emergency broadcast and broadcast sound system: Composed by fire radio module, constant pressure amplifier and broadcast speaker. They are used for inform the guidance evacuation in case of emergency. 2, Fire alarm systems: Fire detectors, manual alarm module, control module, alarm and fire the host. Used to detect the presence of fire locations, so that linkage alarm systems, fire extinguishing systems, exhaust systems, and inform management of timely treatment. 3, Fire extinguishing systems: Hydrant pump, spray pumps, fire hydrants, sprinkler, dry powder fire extinguishers and carbon dioxide extinguishing system used to control and extinguish the fire. 4, Fire exhaust system: Exhaust fan, blower components, used to drain away the smoke, to the floors where the incident to transport new air. It is used to ensure the personnel safety.
Use of Carbon Dioxide Fire Extinguisher
When extinguishing, you just need to take the fire extinguisher to the fire scene, about five meters away from the burning material, put down the CO2 fire extinguisher and pull out the safety pin in one hand and hold the megaphone roots of the handle, the other hand clenched pressure to open and close the valve. As for the carbon dioxide fire extinguisher with no jet, hose up the megaphone boards in 70-90 degrees. When using, not directly use hand to seize the megaphone outer wall of the pipe or metal connection, to prevent the hands from frostbite. When fighting the fire, and when the flammable liquid was flowing like burning, jet the carbon dioxide extinguishing agent from near far to the flame. If the flammable liquid burns in the container, the user should lift the megaphone, and jet from one side of the upper portion of the container to the combustion vessel. But users cannot jet a direct impact on the carbon dioxide jet combustible liquid level, in order to prevent combustible liquid out of the container and expansion of the fire, resulting in difficult fire fighting.
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