On January 30, 2015, on the streets of Nanjing, Jiangsu, a German Mannian double-headed fire truck attracted attention. This is the Austrian Amber bidirectional driving fire rescue vehicle introduced by the Nanjing Fire Brigade. The bidirectional driving fire rescue vehicle has a unique dual-cab and four-wheel steering system that can be turned without turning the head and is particularly suitable for narrow street and tunnel accidents. Rescue, race against time to rescue the disaster. As one of the important tools for rescue and disaster relief, the demand for fire trucks has increased and it is also developing into high-end markets.
Domestic and foreign fire truck industry development
Internationally, as an important branch of firefighting equipment, fire engines have become increasingly mature and sophisticated. Today, the world's most widely used compressed air foam fire extinguishing system (CAFS). Compressed air foam fire extinguishing system (CAFS), also known as "one-seven" foam fire extinguishing system, refers to a drop of water that passes through the system and becomes seven bubbles. Each bubble has the same fire extinguishing effect as one drop of water, which greatly improves the extinguishing effect. . Its fire extinguishing agent is divided into A and B categories.
With the economic and social development, people have also put forward requirements for other functions of fire engines. For example, more and more high-rise buildings are being used today, and high-grade fire engines have emerged. In addition to the task of extinguishing fires, high fire trucks can also be used for high altitude rescue.
China's fire truck industry is mainly imported from abroad at the beginning of reform and opening up. Afterwards, with the improvement of the overall technological level of China's auto industry, the production of fire engines has achieved rapid development. However, compared with foreign products, most fire engines produced in China are labor-intensive and medium- and low-tech products such as ordinary water tankers and light-duty foam tankers.
Domestic fire truck market demand, heavy fire engines are concerned
At present, the number and quality of Chinese fire trucks still have a lot of deficiencies, especially the irrational model structure and the low proportion of special vehicles. The statistical results show that water tankers account for more than 60% of the total, while special vehicles (except water tanks, dry powder, and foam other than foam) only account for 10%, and high-end heavy-duty, high-spray models are seriously inadequate.
Judging from the total amount, the current number of fire engines in China is between 20,000 and 30,000, and the number of fire engines per year has been newly added and updated to more than 2,000 vehicles, far below the level of international developed countries. And with the continuous increase in the types of modern fires, the demand for more varieties of special fire engines is increasing.
For example, with the development of urbanization and socio-economic development, the issue of fire safety in high-rise buildings has attracted more attention, and people have also raised higher demands for safety. According to the data provided by the Ministry of Public Security Fire Department, at present, there are more than 98,000 high-rise buildings nationwide, of which 1,154 are high-rise buildings 100 meters or more in height and are still growing rapidly. Full-featured, large-lift, large-shot, and farther-reaching heavy-duty fire engines have become the darling of the fire engine market and the mainstay of urban firefighting in the future.
Technical level and development trend of fire truck manufacturing enterprises in China
In terms of market demand, the demand for high-end fire engines has increased. However, due to product technology, domestic fire engines have low technical standards and unstable quality. The demand for high-end fire engines can only be achieved by importing foreign vehicles, such as the two in Nanjing. Double-headed fire engines are introduced in Austria. Therefore, if China's fire engines want to develop in the future high-end market, they must develop toward the level of nationalization: water-saving, light-weighted, intelligent, and professional.
China's fire truck manufacturing enterprise technology level water-efficient
With the increasing shortage of water resources and the implementation of the national long-term special plan for energy conservation, water-saving high-efficiency fire-fighting systems will gradually replace traditional water-fighting systems. Among them is the company's compressed air foam fire extinguishing system and fine water spray fire extinguishing system. The compressed air foam fire-extinguishing system water is pumped out of the fire pump and a certain proportion of concentrated foam liquid is added. The compressed air pump is then used to generate air. It is vigorously stirred in a fire hose or fire hose to form a high-energy fire-fighting foam. This foam is small in size and does not carry much water, but it can achieve the effect of complete heat absorption, and the heat absorption rate is more than 5 times faster than simply using water. The fine water spray fire extinguishing system is applied to the fixed fire extinguishing system. Due to the small droplet size of the fine water mist, the cooling efficiency is high, the fire extinguishing speed is fast, and water conservation and environmental protection are achieved.
Lightweight
Lightening is one of the important ways to reduce fuel consumption, increase effective loading quality, improve the efficiency of transportation and control safety, and is a new goal pursued by domestic and foreign fire fighting vehicles. Lightweight materials used more aluminum, magnesium alloys, high-strength steel, plastics and composite materials. According to the current level of the domestic automobile manufacturing industry, it is inferred that the heavy use of these lightweight materials for fire fighting vehicles in engines, frames and carriages, body panels and covers, fire extinguishing agent containers, etc., will be an important measure of whether advanced technology for fire fighting vehicles is advanced. .
Intelligent and informative
Intelligent control and information system equipment, including vehicle chassis engine management, maintenance and repair, shifting, braking, and stability control, rear driven tail bridge and roll control systems, to achieve intelligent chassis, automation and excellent power Sex, economy, safety and long life. Top-mounted electronic positioning navigation systems and vehicle driving recorders, lifting car body balance and automatic work bucket protection system, infrared thermal phase, heat search and wireless transmission, electronic control combined system, these applications of electronic information technology, Sensing technology, automatic control technology, electromechanical integration technology and other high-tech special devices have improved the intelligent level of fire-fighting vehicles and increased the added value of vehicles. Under the conditions of heavy workload and shortage of personnel in the current firefighting force, improving the intelligence level of firefighting vehicles is the most effective way to save manpower and enhance the combat effectiveness of the troops.
specialization
Executing the fire fighting task may encounter various special environments and geographical conditions. Some of them are difficult to reach the fire scene by ordinary fire engines. Therefore, there will be snow fire engines, amphibious fire engines, and driverless vehicles in the future. Various kinds of new products, such as smart remote-controlled fire engines and universal fire engines, have been put into use. The tires of these fire engines may be specially made or even tracked. They can be used in difficult areas such as mountains, beaches and swamps to perform various firefighting, rescue and rescue services.
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