Discussing the performance, operation, and maintenance of high-rise fire trucks. 1. Characteristics and performance of high-lifting fire trucks. In recent years, with the rapid economic growth, high-rise buildings have become increasingly common. To meet the demand for firefighting in such structures, the number of elevated fire trucks has significantly increased, playing a vital role in rescue operations. However, due to their complex structure and high operational requirements, improper use can lead to serious accidents. On May 18, 2009, during a routine inspection by the Second Squadron of the Changsha Detachment in Hunan, a 52-meter curved arm fire truck experienced a mechanical failure, causing the work platform to tip over. A technician and two firefighters fell from a height of 30 meters, resulting in fatal injuries. Similarly, on November 22, 2005, a soldier was injured when a boom of a climbing vehicle suddenly bent, causing the platform to drop. These tragic incidents highlight the importance of proper training and maintenance of such vehicles.
Analyzing these accidents from other provinces provides valuable lessons. To prevent future tragedies, this article aims to share insights based on years of experience in managing fire trucks. It will cover the performance characteristics, operational precautions, and maintenance practices of high-lift fire trucks, encouraging discussion among professionals.
First, the characteristics and performance of lift fire trucks. A high-lift fire truck is equipped with a support system, rotating platform, lifting boom, and firefighting equipment, designed for both fire suppression and rescue. These vehicles are typically categorized into three types: ladder-type, platform-type, and high-spray fire trucks. The development of high-rise fire trucks dates back over a century, and with technological advancements, modern models now feature flexible, bendable arms that allow greater maneuverability. Some large-scale units include water tanks and pumps, enhancing their firefighting capabilities.
(1) Ladder-type fire trucks use telescopic booms, offering advantages such as lightweight design, quick deployment, and ease of operation. For example, the German MALKILUS 55-meter straight-arm model weighs only 22 tons and can extend to its maximum height in about 85 seconds. However, they have limitations in working height (up to 56 meters), platform load capacity, and maximum deployment angle (75 degrees). Their platforms are small, accommodating up to two people, and they have relatively low water cannon flow rates (1800–3800 liters per minute).
(2) Platform-type fire trucks, also known as hydraulic lifts or curved-arm vehicles, are more versatile. They offer larger working platforms, better stability, and higher lifting capacities, allowing for efficient rescue operations. These vehicles can carry up to five people and have a maximum working height of 104 meters. Their platforms are often equipped with water cannons and integrated water systems, enabling immediate firefighting. Water flow rates can reach up to 6000 liters per minute, making them highly effective in large-scale fires.
(3) High-spray fire trucks are equipped with curved booms and top-mounted water cannons, capable of spraying water or foam over long distances. They are ideal for reaching high altitudes and covering large areas. Modern versions often include water tanks, fire pumps, and vacuum pumps, ensuring continuous operation even without direct water sources. Some models are equipped with remote-controlled demolition tools, allowing for window breaking and structural access, improving rescue efficiency.
In conclusion, while high-rise fire trucks are essential in modern firefighting, their operation requires careful attention to safety and maintenance. Proper training, regular inspections, and understanding of each vehicle’s capabilities are crucial to preventing accidents and maximizing effectiveness. By learning from past incidents and continuously improving procedures, fire departments can better protect both personnel and the public.
Editor: Hardware Business Network Information Center
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