What type of extinguisher can be used to save live equipment?
Dry powder fire extinguisher is a kind of fire extinguisher. According to the type of dry powder extinguishing agent, it can be divided into: ordinary dry powder extinguisher; superfine dry powder fire extinguisher. The ordinary dry powder extinguishing agent is mainly composed of active components, fire extinguishing composition, inert filler composed of hydrophobic, hydrophobic and hydrophobic silicone oil is the main component of white carbon black, inert filler variety, mainly anti vibration, agglomeration, improve the motion performance of dry powder, dry powder and silicone oil catalytic polymerization to improve the tolerance function and foam fire extinguishing agent. This kind of ordinary dry powder extinguishing agent has been widely used at home and abroad.
Carbon dioxide extinguishing agent is a fire extinguishing agent with a history of more than 100 years. It is cheap, easy to obtain and easy to prepare. It mainly relies on smothering action and partial cooling action to extinguish the fire. Carbon dioxide has a higher density, about 1.5 times that of the air. At normal pressure, liquid carbon dioxide vaporizes immediately, and liquid carbon dioxide, typically 1kg, produces about 0.5 cubic meters of gas. Therefore, when the fire, carbon dioxide gas can eliminate the air and surround the surface of the object or the distribution of combustion in a relatively closed space, reducing the fuel around or in the protection room oxygen concentration, produce suffocation and fire. In addition, when carbon dioxide is ejected from the storage vessel, it is rapidly vaporized into a gas by the liquid, which absorbs some of the heat from the surrounding and acts as a cooling agent.
Live equipment fire extinguishing, need to use dry fire extinguisher, carbon dioxide fire extinguisher or 1211 fire extinguisher fire.
1211 fire extinguishers installed in the cylinder 1211 nitrogen pressure spray fire hydrant extinguishing agent, which belongs to a class of storage type, 1211 is the two fluorine monochloromonobromomethane code, the molecular formula was CF2ClBr, it was China's production and use of the most widely used of the halon fire extinguishing agent in liquid tank installed in the cylinder. 1211, fire extinguishing agent is a low boiling point of liquefied gas, with high fire efficiency, low toxicity, low corrosion, long storage without deterioration, fire without leaving traces, no pollution, protection, insulation and other advantages. However, because of the strong destructive power of the extinguishing agent to the ozone layer, China has stopped producing 1211 extinguishing agents in 2005.
