A compressed air foam intelligent cannon automatic fire extinguishing method and system

Abstract

The invention discloses automatic fire extinguishing method and system for an intelligent gun employing compressed air foam. The automatic fire extinguishing method comprises the following steps: firstly, detecting and positioning a fire source; once a fire occurs, immediately starting a fire source positioning procedure, and calculating the jet pitching angle of the intelligent gun, so as to automatically adjust the direction and angle of a gun muzzle; receiving a fire extinguishing instruction by a foam generating device, beginning to work, and turning on an electric control valve; and after the fire source is put out, enabling the foam generating device to stop working, and turning off the electric control valve. According to the automatic fire extinguishing method and system, automatic monitoring of the fire and fire extinguishing in an accurate positioning manner can be realized. The system is simple in structure, convenient to mount, large in protection range, timely in fire detection response, and high in fire extinguishing efficiency; the fire can be put out at an initial stage; the amount of a foam extinguishing agent and water is reduced; through controlling horizontal swinging of the intelligent gun around a fire source point as a center, the coverage range of the foam is greatly increased, the technical problem of extinguishing of large-area flowing fire caused by liquid fuel leakage is solved, and the reliability and the application range of the automatic fire extinguishing method for the intelligent gun employing the compressed air foam are improved.

Description

Technical field [0001] The invention relates to automatic fire extinguishing technology, in particular to a compressed air foam intelligent gun automatic fire extinguishing method and system. Background technique [0002] Fixed compressed air foam fire extinguishing technology is a new type of foam fire extinguishing technology that has gradually developed in recent years. It generates foam by injecting air (or nitrogen) into the foam solution under positive pressure. The compressed air foam has a fine and uniform structure, a long liquid separation time and high stability, which can cover the surface of the protection object for a long time. Compared with water and existing low-expansion foams, compressed air foam has many outstanding advantages: (1) It has high extinguishing efficiency for Class A and Class B fires, and has significant water-saving characteristics; (2) It has a good accumulation of "Covering" feature, suitable for extinguishing class AB mixed fires. It can co...

AI Technical Summary

Problems solved by technology

Among them, the existing compressed air foam guns and compressed air foam guns need to be manually controlled for foam release and fire extinguishing. They are mainly used for mobile compressed air foam fire trucks and are not suitable for fixed (automatic) automatic fire extinguishing systems.

The compressed air foam sprinkler is the main release device of the fixed compressed air automatic fire extinguishing system. It is based on the traditional spray mode for foam release and fire extinguishing, but this spray mode requires a huge pipe network system, complex construction, high engineering cost, and It does not have the functions of automatic positioning, precise striking and rapid extinguishing of initial fires, and it is easy to cause a lot of waste of foam fire extinguishing agents and water resources in practical applications

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