Overview of dry powder fire trucks
As an important component of firefighting equipment, dry powder fire trucks play a crucial role in fire suppression. It is a vehicle specifically designed for spraying dry powder fire extinguishing agents to extinguish fires. Dry powder fire trucks have multiple functions and features, enabling them to respond to different types of fire scenarios. It has a wide range of applications and can be used to extinguish fires caused by flammable liquids, gases, live equipment, and general substances in petrochemical enterprises, oil fields, and other places. In some special environments where water cannot be used to extinguish fires, dry powder fire trucks are an indispensable firefighting force.
Types and characteristics of dry powder fire trucks
Pure dry powder fire truck
Pure dry powder fire trucks mainly use dry powder spraying as the main fire extinguishing method. For example, the HOWO rear double axle 6-ton pure dry powder fire truck is equipped with a MAN 460 horsepower engine on the chassis and an original dual row cab. This type of fire truck has strong power and sufficient dry powder reserves, which can quickly spray a large amount of dry powder on the fire scene and control the fire quickly. It is suitable for large-scale flammable liquid and gas fire scenes, and can quickly suppress the spread of fire, creating favorable conditions for subsequent firefighting work.
Dry powder/nitrogen fire truck
The dry powder/nitrogen fire truck integrates nitrogen production, gas fire extinguishing, powder spray fire extinguishing, and three-phase jet functions. This type of fire truck is particularly suitable for extinguishing and preventing special fires that cannot be extinguished with water, such as electrical equipment, combustible gas fires, confined spaces, petrochemical storage tanks, inert fire extinguishing devices, and active metals. In some power facility fires or special fire scenarios in chemical enterprises, dry powder/nitrogen fire trucks can play their unique advantages by utilizing the synergistic effect of nitrogen and dry powder to effectively extinguish fires and prevent reignition.
Dry powder water foam combined fire truck
Dry powder water foam combined fire truck combines the advantages of dry powder, water and foam. For example, Jiangte brand dry powder water foam combined fire truck, the fuel type is diesel, and the emission standard is national six. It can flexibly choose to use dry powder, water or foam to extinguish the fire according to different fire types. For oil fires, cover the fire source with foam to isolate the air, and then use dry powder to further extinguish the fire; For general material fires, water can be used for cooling and extinguishing. The multifunctionality of this fire truck enables it to play an important role in various fire scenarios.
Working principle of dry powder fire truck
The working principle of dry powder fire trucks is mainly based on the spraying and action of dry powder fire extinguishing agents. After the fire truck arrives at the scene of the fire, the operator extracts the dry powder fire extinguishing agent from the storage tank through the fire pump and transports it to the fire monitor or spray gun through the pipeline. During the spraying process, the dry powder fire extinguishing agent is sprayed onto the fire source at high speed, and the active ingredients in the dry powder react chemically with the combustibles, interrupting the chain reaction of combustion and achieving the purpose of extinguishing the fire. At the same time, dry powder covers the surface of the burning material, isolating the air and preventing oxygen from coming into contact with the burning material, further suppressing the fire.
For dry powder/nitrogen fire trucks, their working principle is more complex. It can not only spray dry powder, but also produce nitrogen gas. During the fire extinguishing process, nitrogen can reduce the oxygen concentration in the combustion area, creating an unfavorable environment for combustion. At the same time, the combination of nitrogen and dry powder can improve the fire extinguishing effect, especially for some special fires, such as active metal fires, it has better fire extinguishing performance.
Application scenarios of dry powder fire trucks
Petrochemical enterprises
Petrochemical enterprises store and process large quantities of flammable liquids and gases. Once a fire occurs, the spread of the fire is rapid and the danger is extremely high. Dry powder fire trucks play an important role in firefighting in such enterprises. It can quickly reach the scene of a fire and use its powerful spraying force to spray dry powder extinguishing agent onto the fire source, quickly controlling the fire and preventing it from spreading. For example, in some fire accidents in refineries and chemical plants, dry powder fire trucks can arrive at the scene in the first time, buying valuable time for firefighting work.
oil field
Oil fields are concentrated areas of flammable liquids and gases, with a high risk of fire. Dry powder fire trucks are suitable for extinguishing fires in oil fields, especially when fires occur in oil wells, oil tanks, and other areas, they can effectively extinguish them in a timely manner. Its flexibility and maneuverability enable it to quickly move in the complex terrain environment of oil fields and accurately strike fires.
Power facilities
There are a large number of live equipment in power facilities such as substations and distribution rooms. When a fire occurs in these places, water should not be used for extinguishing to avoid electric shock accidents. Dry powder fire trucks can safely and effectively extinguish fires caused by live equipment. Dry powder fire extinguishing agent is non-conductive and can quickly extinguish fires without affecting the normal operation of electrical equipment, ensuring the safety and stability of power supply.
Fire in general places
In addition to the aforementioned special locations, dry powder fire trucks can also be used for firefighting in general places such as shopping malls, warehouses, factories, etc. For fires caused by flammable substances, dry powder fire trucks can respond quickly, control the fire in a timely manner, and reduce fire losses.
Market situation of dry powder fire trucks
Price and Manufacturer
The price of dry powder fire trucks on the market varies depending on the model, configuration, and functionality. For example, the Dongfeng Tuyi 1-ton water tank fire truck with dry powder function is priced at 5000 yuan; The 700P Qingling Isuzu water tank fire truck is also an Isuzu dry powder cannon foam combination fire truck, priced at 335000 yuan. Dry powder fire trucks produced by different manufacturers also have certain differences in quality, performance, and price. Common manufacturers include Hubei Jiulong Special Purpose Vehicle Co., Ltd. and Hubei Juchuang Dacheng Automobile Sales Co., Ltd. These manufacturers offer a variety of models of dry powder fire trucks for customers to choose from, and customers can choose according to their own needs and budget.
Market demand and development trends
With the development of social economy and the increasing awareness of fire safety among people, the market demand for dry powder fire trucks is also constantly increasing. Especially in some high-risk industries such as chemical enterprises and oil fields, the demand for high-performance and multifunctional dry powder fire trucks is more urgent. In the future, the development trend of dry powder fire trucks will move towards intelligence, efficiency, and environmental protection. Intelligent dry powder fire trucks can achieve functions such as automatic control and remote monitoring, improving fire extinguishing efficiency and safety; Efficient dry powder fire trucks will have stronger spraying power and larger dry powder reserves, which can extinguish fires faster; Environmentally friendly dry powder fire trucks will use more environmentally friendly dry powder fire extinguishing agents to reduce environmental pollution.
Maintenance and upkeep of dry powder fire trucks
Daily inspection
Daily inspections are crucial to ensure the normal operation and reliability of dry powder fire trucks. Operators should inspect the appearance, tires, lighting, etc. of the fire truck daily to ensure that the vehicle is undamaged, the tire pressure is normal, and the lighting is good. At the same time, it is necessary to check the sealing condition of the dry powder storage tank to prevent dry powder leakage. Regularly inspect the operation of fire pumps, fire monitors, and other equipment to ensure their good performance.
Storage and replacement of dry powder fire extinguishing agent
The storage conditions of dry powder fire extinguishing agents directly affect their performance. Dry powder fire extinguishing agents should be stored in a dry and ventilated environment to avoid moisture and clumping. Regularly check the quality of dry powder fire extinguishing agents, and replace them in a timely manner if clumping or deterioration of the dry powder is found. Generally speaking, the replacement cycle of dry powder fire extinguishing agents depends on their usage and storage conditions, usually 2-3 years.
Equipment maintenance
Regular maintenance and upkeep should be carried out on key equipment such as fire pumps and fire cannons. According to the manufacturer's requirements, regularly lubricate, clean, and debug the fire pump to ensure its stable operation. Adjust and calibrate the parameters such as spray angle and range of the fire monitor to ensure its fire extinguishing effect. At the same time, it is necessary to inspect and maintain the electrical and hydraulic systems of the fire truck, and promptly eliminate potential faults and hazards.
In short, dry powder fire trucks play an important role and position in the field of fire safety. Understanding its types, characteristics, working principles, application scenarios, market conditions, and maintenance is of great significance for improving fire extinguishing capabilities and ensuring the safety of people's lives and property. With the continuous advancement of technology and the development of society, dry powder fire trucks will continue to innovate and improve, making greater contributions to the cause of fire safety.
