In the field of coal mining, explosion-proof trackless rubber tired vehicles, support handling vehicles, loaders, and mining transport vehicles are key transportation equipment that undertake the heavy responsibility of personnel and material transportation. However, the underground working environment is complex and harsh, with limited space, poor ventilation, and the accumulation of flammable and explosive gases such as gas. At the same time, the vehicle engine generates a large amount of heat during long-term high load operation. Cooling system failures, high temperatures caused by mechanical friction, and poor lubrication can all lead to catastrophic accidents such as fires and even gas explosions, seriously threatening the safety of miners' lives and mine production safety. Nowadays, the application of passive and non electric technology in the automatic fire extinguishing system of Jiutong Changsheng vehicles has brought a new breakthrough to the fire safety of underground mining cars such as explosion-proof trackless rubber tired vehicles.

1、 Traditional firefighting dilemma: numerous hidden dangers that are difficult to deal with

Traditional firefighting methods have many limitations in fire prevention and control of explosion-proof trackless rubber tired vehicles. On the one hand, manual inspections are difficult to achieve real-time and comprehensive coverage, and cannot detect potential fire hazards in a timely manner. The underground environment is complex, and the internal structure of vehicles is compact. Abnormal situations in some hidden parts are difficult to detect manually. By the time they are discovered, the fire may have developed to an uncontrollable level. On the other hand, traditional fire extinguishing devices rely on power sources, and in complex underground environments, the power lines are easily damaged, resulting in the inability of the fire extinguishing device to start normally. Moreover, traditional firefighting methods often rely on post fire extinguishing, which makes it difficult to respond quickly in the early stages of a fire and effectively control its spread, often resulting in significant economic losses and casualties. 

2、 Passive and Electric Free Technology: Innovative Design Breaks Difficulties

The automatic fire extinguishing system for Jiutong Changsheng vehicles has been innovatively designed to address the special underground environment and the fire risk of explosion-proof trackless rubber tired vehicles. The system adopts a mechanical temperature sensing self starting fire extinguishing method, without the need to lay power wires, freeing the system from the constraints of power and power lines. This design avoids system failure caused by power line damage and insufficient power supply, greatly improving the stability and reliability of the system. At the same time, all system components are made of earthquake resistant and corrosion-resistant stainless steel materials, which can adapt to harsh environments such as high temperature, high corrosion, and high vibration underground. For example, stainless steel materials or electroplating anti-corrosion treatment are used on key components such as detectors and sprinkler heads, and metal braided hoses are wrapped around the pipeline for safety protection, effectively reducing the erosion of the system by harsh environments and extending the service life of the system. 

3、 Accurate detection and warning: insight into hidden dangers at the smallest level

The automatic fire extinguishing system for Jiutong Changsheng vehicles has precise detection and warning functions, which can comprehensively and real-time monitor the status of various key parts of underground mining cars. The real-time temperature detectors equipped in the system are reasonably distributed in the engine compartment, electrical control box, fuel tank, tires and other parts of the mining car that are prone to fire caused by high temperature. These detectors can set trigger temperature values based on the temperature characteristics within the area, and sense subtle changes in temperature in real time. Once the temperature exceeds the set safety threshold, the detector will immediately send an alarm signal to the control system, and the sound and light alarm device will automatically start sounding the horn, promptly notifying underground workers to take emergency measures or evacuate the dangerous area, in order to save precious time for timely fire extinguishing measures. 

4、 Efficient firefighting response: swift and decisive control of the fire

When a fire occurs, the automatic fire extinguishing system of Jiutong Changsheng vehicle can quickly activate the fire extinguishing device to control the fire with efficient extinguishing ability. The system adopts advanced spraying technology to achieve one-to-one precise fire extinguishing through fine sprinkler heads and efficient fire extinguishing agents. The fire extinguishing agent forms small droplets under high pressure, which can quickly cover the entire surface of the fire source, fully contact with the flame, and exert the best fire extinguishing effect. Compared with traditional fire extinguishing methods, this spraying technology can greatly shorten the fire extinguishing time and improve the fire extinguishing efficiency. 

5、 Customized design services: tailored to local conditions to improve efficiency

The fire hazards of underground mining cars with different functions vary. The automatic fire extinguishing system used by Jiutong Changsheng adopts a customized design service mode to meet the fire extinguishing needs of multiple parties. Technicians will conduct a comprehensive investigation of the structural characteristics, working environment, and potential fire risks of each explosion-proof trackless rubber tired vehicle, and develop a professional fire extinguishing plan in a reasonable manner. In the design of pipelines and sprinkler heads, targeted layout is carried out based on the internal structure of the protected equipment to ensure that the quantity and location of detectors, sprinkler heads, fire extinguishing agents, etc. are scientifically and reasonably set, and the agents are released completely and transported quickly. For example, for some explosion-proof trackless rubber tired vehicles with special structures, the system will adopt a multi angle, fine water mist nozzle design, combined with a dedicated chemical delivery pipeline. No matter how the vehicle tilts or bumps, the fire extinguishing agent can evenly and efficiently cover the fire source.

6、 Technology Leads the Future: A New Chapter in Smart Firefighting

The application of the automatic fire extinguishing system for Jiutong Changsheng vehicles is a vivid practice of technology empowering coal mine safety production. It uses innovative passive and non electric technology to build a strong fire safety defense line for underground mining vehicles such as explosion-proof trackless rubber tired cars, effectively solving many problems of traditional firefighting methods in underground environments, greatly improving the safety performance and fire emergency response capabilities of coal mining vehicles. With the continuous advancement of technology, the automatic fire extinguishing system for Jiutong Changsheng vehicles will develop towards a more intelligent and efficient direction, providing a more comprehensive and reliable guarantee for the safety production of coal mines.