What are the fire-fighting facilities commonly used in laboratories?

What are the fire-fighting facilities commonly used in laboratories?

Respirators, ABC fire extinguishers and carbon dioxide fire extinguishers, fire hydrants, manual explosion buttons, sprayers, smoke and temperature sensors and heptafluoropropane gas fire extinguishing equipment (if possible).

What are the commonly used fire extinguishing methods in the laboratory?

Fire extinguishing methods commonly used in laboratory: water extinguishing, sand extinguishing and fire extinguisher. If combustible liquid is burning, all combustible substances in the fire area should be moved to a safe area immediately, and then the ventilator should be turned off to prevent further burning. If the fire area is small, it can be covered with wet cloth or sand to isolate the air and put it out.

Common fire extinguishing methods:

1. If combustible liquid is burning, immediately move all combustible substances in the burning area to a safe area, and then turn off the ventilator to prevent further burning. If the fire area is small, it can be covered with wet cloth or sand to isolate the air and put it out.

2, ether, toluene and other organic solvents on fire, the application of asbestos cloth or sand to put out. Never use water, or it will expand the burning area.

3. When sodium metal is on fire, pour sand on it to put out the fire.

4, when the wire is on fire, can't use water or carbon dioxide fire extinguisher. Immediately cut off the power supply or use carbon tetrachloride fire extinguisher to extinguish the fire.

Don't run away if you burn your clothes carelessly. You should immediately lie on the ground and roll around to put out the fire.

6, if it is a major fire accident should immediately call the police.

Specific situation analysis

1, chemical laboratory

Foam extinguisher, dry powder fire extinguishers, carbon dioxide fire extinguishers and carbon tetrachloride fire extinguishers all need to be equipped, because the fire factors in the chemistry laboratory are complex, and some common substances catch fire, such as paper and flammable organic substances. At this time, foam extinguisher or dry powder fire extinguisher can be used to extinguish the fire.

Sometimes electrical equipment is on fire (there are quite a few types of electrical equipment in chemical laboratories, including vacuum pumps, centrifuges, electric furnaces, acid meters, etc.). At this time, only carbon dioxide or carbon tetrachloride fire extinguishers can be used, and foam extinguisher cannot be used.

Foam extinguisher is easy to get an electric shock, but carbon dioxide and carbon tetrachloride fire extinguishers produce gas, which can isolate the air and put out electrical fires. If very sophisticated or expensive instruments catch fire, it is recommended to use carbon dioxide fire extinguishers, because they will not leave traces and will not damage the equipment.

Carbon tetrachloride fire extinguisher will emit heavy carbon tetrachloride inert steam, which can isolate the air and can be used to put out electrical fires, but it is not suitable for fire extinguishing at high temperature, because at high temperature, carbon tetrachloride will react with oxygen in the air to generate highly toxic phosgene.

2. Physics laboratory

Generally speaking, carbon dioxide fire extinguishers and carbon tetrachloride fire extinguishers are more suitable, because in the physics laboratory, the trigger factor of fire is mostly electrical short circuit, so these two kinds of fire extinguishers are more suitable for extinguishing electrical fires. Moreover, the instruments in the physics laboratory are more precise or expensive, so it is more appropriate to use a clean fire extinguisher without leaving traces, so the carbon dioxide fire extinguisher is the first choice.

Mainly carbon dioxide fire extinguishers, carbon tetrachloride fire extinguishers can also be considered, but carbon dioxide fire extinguishers are still the first choice, because the fire in the computer room is mainly related to electricity, such as short circuit of electrical appliances, and computers are more expensive electrical appliances, so using carbon dioxide fire extinguishers can not only effectively control the fire, but also won't hurt valuables.