Fire-fighting equipment develops in many fields

On March 17th, the fire prevention detachment of Shenyang City, Liaoning Province, in the fire education and training base, destroyed more than 370 counterfeit and inferior fire-fighting facilities and equipment that were recently inspected through cutting, roller compaction, etc., eliminating the use of counterfeit and inferior fire-fighting products. Fire extinguishing hidden dangers. A few days ago, the High-tech Zone distributed millions of fire-fighting equipment to 33 natural villages in the Majinpu office to support the construction of new rural areas. Effectively improved the weak basic fire protection infrastructure in the area, which provided a powerful guarantee for fighting the initial fire and emergency rescue. Destruction of poor quality, adequate supplies, and fire fighting equipment play a pivotal role in protecting people's personal safety.

Fire equipment development involves many areas of fire equipment is an important weapon for humans to fight fire. With the rapid development of science and technology, the mutual penetration of various disciplines has brought new vitality and vitality to the development of fire equipment. Fire equipment involves a wide range of types. Automatic control of fire alarm systems, fire extinguishers, fixed fire extinguishing systems, pumps, vehicles and water supply equipment, personal equipment and life-saving equipment, and communication and dispatching command systems from fires to fire extinguishing agents and flame-retardant equipment can be said to include metallurgy related to national economy and people's livelihood. , machinery, transmission, light industry, electronics, computers, chemicals, materials and other scientific fields.

With the extensive application of fire fighting equipment in fire prevention work such as fire prevention, firefighting and rescue, etc., the overall level of preventing and resisting fires and other disasters in the whole society has been significantly improved. Fire technology has become an important driving force and guarantee for promoting the development of China's fire protection industry. Driven by the continuing favorable macroeconomic environment in China and the favorable environment in the real estate market, China's fire equipment manufacturing industry is facing unprecedented opportunities for development. According to the “2013-2017 China Fire Equipment Manufacturing Industry In-depth Research and Investment Forecast Analysis Report” statistics, China's fire protection product market is in a rapid development trend in recent years.

With the sustained and rapid development of the Chinese economy, the gradual enhancement of comprehensive national strength and the acceleration of urbanization, and the high level of attention given to fire prevention work by governments at all levels, the state’s investment in urban fire protection facilities has been increasing year by year. Governments at all levels are used to purchase fire fighting equipment every year. The cost of materials and supplies has increased year by year. At the same time, it is expected that the fire-fighting equipment industry will continue to show a rapid growth trend in the next few years, with an annual growth rate of 15% to 20%. At present, the government and the public have started to attach great importance to the fire protection work, and the fire-fighting equipment industry will maintain a rapid growth rate in the future.

What kind of fire-fighting equipment and how to use it The portable dry-type fire extinguisher can be hand-carried or shoulder-fired fire extinguisher to quickly go to the fire, about 5 meters away from the burning place, put down the fire extinguisher. If you are outdoors, you should choose to spray in the upwind direction. If the dry powder fire extinguisher used is of the plug-in type, the operator should grip the spray gun with one hand and open the lifting ring on the other. If the opening of the gas cylinder is hand-wheel type, unscrew it counterclockwise and rotate it to the highest position, then lift the fire extinguisher. When the dry powder sprayed out, quickly aim at the root of the fire. If the dry powder fire extinguisher used is a built-in gas cylinder or a pressure storage type, the operator should first unplug the safety pin on the opener, then hold the nozzle part at the front end of the spray hose, and the other hand will open the pressure handle. Press down and turn on the extinguisher to extinguish the fire. When using a fire extinguisher or pressurized fire extinguisher with a spray hose, the pressure handle should always be pressed down by one hand and cannot be released. Otherwise, the spray will be interrupted.

When a dry powder fire extinguisher is used to extinguish flammable and flammable liquids, fire should be directed at the main part of the fire. If the liquid fire that is being extinguished burns, it should be directed at the root of the fire from near to far, and fire at right angles until the flame is completely extinguished. If the flammable liquid is combusted in the container, the user should aim at the root of the fire and shake it so that the flow of sprayed powder covers the entire surface of the opening of the container; when the flame is driven out of the container, the user should continue to spray until the flame is completely extinguished. . When flammable liquids in fire-fighting containers are in fire, attention should be paid that the nozzles should not be directly aimed at the liquid surface to prevent the flammable liquids from being spilled by the impact force of the jets to expand the fire and cause difficulty in extinguishing the fire. If the flammable liquid is burned in the metal container for a long time, the wall temperature of the container is already higher than the self-ignition point of the flammable liquid. This can easily cause the phenomenon of re-ignition after fire extinguishing. If used together with a foam fire extinguisher, the fire can be extinguished. Better results.

When using a dry powder fire extinguisher to fight a solid combustible fire, fire should be directed at the place where the combustion is most violent, and shoot up and down and left and right. If conditions permit, the user can use the fire extinguisher to spray along the four sides of the combustion, so that the dry powder fire extinguishing agent evenly sprayed on the surface of the combustion until the flame is completely extinguished.

Portable 1211 fire extinguisher first unplug the insurance pin, and then open the handle with one hand, the other hand holding the handle of the horn spray bucket, hold the open pressure handle, you can spray. The state gradually restricts its use, mainly because halogenated alkanes pollute the atmosphere and are harmful to the human body. Carbon dioxide fire extinguishers are gradually replacing the 1211 fire extinguishers, using the same method as the 1211 fire extinguishers. However, when using carbon dioxide, care must be taken not to hold the nozzle or the nozzle in the hand to prevent frostbite.

35kg push-type dry powder fire extinguisher --- Two people operate, one person removes the spray gun, unfolds the hose, and then presses the trigger by hand; Another person pulls out the opening mechanism's insurance pin, and quickly opens the fire extinguisher opening mechanism.

Foam Fire Extinguisher --- Extinguishing fluid for foam fire extinguisher consists of aluminum sulfate, sodium bicarbonate and liquorice. When the fire is extinguished, the foam fire extinguisher is inverted and the foam can be sprayed to cover the fire and achieve the purpose of extinguishing the fire. Suitable for extinguishing fire in barreled oil, pipelines and ground. It does not apply to fires of electrical equipment and precision metal products.

Carbon tetrachloride fire extinguisher --- After carbon tetrachloride gasification is colorless, transparent, non-conductive, gas density than air. When the fire is extinguished, the body is turned upside down, the nozzle is turned downwards, and the hand valve is opened, and the flame can be sprayed to extinguish it. Suitable for extinguishing fires of electrical equipment and valuable equipment. Carbon tetrachloride is highly toxic and the user must stand upwind. In the room, ventilate immediately after extinguishing.

CO2 fire extinguisher - Carbon dioxide is a non-conductive gas, which is denser than air and is liquid at high pressure inside the cylinder. When the fire is extinguished, just flip the switch and the carbon dioxide is sprayed on the fire in a state of air flow to shut off the air and extinguish the flame. It is suitable for small area fires in precision instruments, electrical equipment, and oil labs. When carbon dioxide changes from a liquid state to a gaseous state, it absorbs heat in large quantities and the temperature is extremely low (it can reach -80°C), and frost damage should be avoided. At the same time, although carbon dioxide is non-toxic, it has a suffocation effect and inhalation should be avoided as much as possible.

The current situation and problems of on-board fire-fighting equipment When people spend 1.2 million or even millions of dollars to buy a car, theoretically it is not a fire extinguisher or other fire extinguishing device. And general fire-fighting equipment has a shelf life, so the market for automotive fire-fighting equipment should be even larger. However, this is not the case. The market for automotive fire-fighting equipment is not ideally done. The reasons are probably the following.

1. The sedan is the highest proportion of all models, and it is a private item. Because the fire awareness of the Chinese people is generally low, a large number of people do not install on-board fire extinguishers for their cars.

2. The relevant departments are not well-supervised, and regular car inspections are not implemented. Many vehicle-mounted fire-fighting equipment are damaged or need to be maintained without timely handling. In the event of a fire, they can only hope to exclamation.

3. There is no fire-fighting company that specializes in vehicle-mounted fire-fighting equipment.

The development of the fire-fighting industry is developing rapidly. Countries in the world are increasingly paying attention to the issue of national public security. The fire-fighting industry is particularly concerned by governments of all countries. The Chinese economy is in a period of rapid development. In the next few years, the Chinese fire-fighting industry will also show a rapid momentum of rapid development.

With China's accession to the WTO, the economy continues to grow rapidly, the overall national strength is gradually enhanced, the pace of urbanization is accelerating, and governments at all levels attach great importance to fire protection work. People's demand for fire safety protection continues to increase, and society needs for fire protection products. Will change from passive to active. This has brought unprecedented opportunities for the development of the fire protection industry.

The introduction of the Fire Protection Law more clearly clarified the responsibilities of the governments at all levels in the work of fire prevention, and continuously strengthened the guidance and supervision of the government on fire prevention work. The government’s investment in urban fire safety protection facilities has been increasing year by year. This has greatly promoted the market of fire products.

Conclusion Although the future of fire-fighting equipment is good, but in the development of fire engineering companies, we must accurately grasp the orientation of industrial development, and strive to create a comprehensive set of national fire-fighting equipment integrated with product management, engineering installation, maintenance and equipment manufacturing. Gathering area. It is advisable to set up an enterprise integrating production, R&D, installation and construction. It is necessary to focus on building a base for industrial development. It is necessary to attach great importance to the development of the headquarters economy, effectively strengthen industry management, and strive to create a favorable environment for accelerating the development of the fire equipment industry.