Types and uses of fire extinguishers (fire prevention must be understood)

Fire extinguisher, also known as fire extinguisher, is a portable fire extinguishing tool. Because of its simple and portable design, ordinary people can also use it to put out the small fire that just happened. Let's introduce the types and uses of fire extinguishers.

First,? Types and uses of fire extinguishers

1、? Portable foam extinguisher

Foam extinguisher is suitable for putting out initial fires of oil and general substances.

2、? Portable carbon dioxide fire extinguisher

Carbon dioxide fire extinguisher is suitable for extinguishing the initial fire of precision instruments, electronic equipment and electrical appliances below 600 volts.

3、? Portable dry powder fire extinguisher

Dry powder fire extinguisher is suitable for extinguishing the initial fire of oil, combustible gas and electrical equipment.

4、? Portable fire extinguisher "12 1 1"

The "12 1 1" fire extinguisher is suitable for putting out the initial fire of valuables such as oil, instruments and cultural relics.

5、? Small household fire extinguisher

Household fire extinguishers are suitable for extinguishing small fires in kitchen, living room and living room, and there are two types: spraying type and throwing type.

Second,? Fire extinguisher model

The model of fire extinguisher shall be compiled in accordance with the provisions of the Method for Compilation of Fire Protection Product Model. It consists of classes, groups, feature codes and main parameters.

Classes, groups and feature codes are represented by capital Chinese phonetic letters; Generally compiled at the top of the model, it is the code name of the fire extinguisher itself. It is usually represented by "m".

Fire extinguishing agent code? No.2 in the model: P- foam fire extinguishing agent, acid-base fire extinguishing agent; F- dry powder fire extinguishing agent; T- carbon dioxide extinguishing agent; Y- 12 1 1 extinguishing agent; SQ- Clear Water Fire Extinguishing Agent.

The table number is the third in the model, and it is the code name of the structural characteristics of various fire extinguishers. At present, there are five types of fire extinguishers in China: portable (including handwheel type), cart type, duckbill type, boat type and backpack type, among which the models are S, T, Z, Z and B respectively. By default, the form number means portable.

As for your MF/ABC2-4 fire extinguisher model, MF stands for dry powder fire extinguisher, and the table number means portable by default, that is, portable dry powder fire extinguisher. MFZ stands for duck-billed carbon dioxide fire extinguisher. MFZ means, M is a fire extinguisher, F is dry powder, Z is pressure storage type, and if there is no Z, it means M gas cylinder type. At present, dry powder fire extinguishers are basically pressure storage type, and there are not many gas cylinder types. In fact, their fire fighting ability is the same.

And/or followed by fire extinguishing agent and loading, ABC stands for ammonium phosphate dry powder, which may be difficult to remember. In other words, this fire extinguisher is suitable for extinguishing Class A (solid), Class B (liquid) and Class C (gas) fires. The number after ABC represents the number of kilograms of dry powder, 2 represents the fire extinguisher is 2 kilograms, and 4 represents the range of 4 meters. Generally speaking, this kind of fire extinguisher is a 2 kg portable ammonium phosphate (or ABC) dry powder fire extinguisher with a range of 4 meters. If the fire rating of 5 kg is 3A? 89B, 5A does not exist. The fire extinguisher MF/ABC3-2A stands for a 3kg portable ammonium phosphate fire extinguisher, the fire extinguishing category is Class A and the fire extinguishing level is Class 2. 2*MF/ABC5，？ 2 is the fire extinguishing level, MF is the code name of ammonium phosphate, ABC:A stands for extinguishing solid fire, B stands for extinguishing flammable liquid fire, C stands for extinguishing flammable gas fire, and 5 stands for the number of kilograms of powder.

Using sodium bicarbonate as fire extinguishing agent, BC dry powder for short;

Are the fire extinguishers MF/ABC3X2 and MF/ABC4X2? , which are 2 3kg and 2 4kg respectively.

After introducing the types, uses and models of fire extinguishers, do you know more about fire extinguishers now?

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