Mobile liquid nitrogen fire extinguishing system and fire extinguishing method thereof

Abstract

The invention relates to the field of fire fighting, in particular to a mobile fire extinguishing system using liquid nitrogen as a fire extinguishing agent and a using method of the mobile fire extinguishing system. The mobile liquid nitrogen fire extinguishing system mainly comprises a movable liquid nitrogen fire extinguishing platform, and the movable liquid nitrogen fire extinguishing platform is communicated with a liquid nitrogen tank car through a conveying hose; the movable liquid nitrogen fire extinguishing platform comprises a moving device, a fire monitor carriage, a liquid nitrogen injection monitor, a low-temperature booster pump and the conveying hose, one end of the conveying hose is connected with the liquid nitrogen tank car, the other end of the conveying hose is connected with the liquid nitrogen injection monitor, the fire monitor carriage is arranged on the moving device, and the conveying hose is attached to the fire monitor carriage; and the moving device is further provided with the low-temperature booster pump for pressurizing the liquid nitrogen in the conveying hose. According to the mobile fire extinguishing system, the liquid nitrogen can be used as the low-temperature inert fire extinguishing agent, large fire disasters can be quickly extinguished, meanwhile, the system can be connected with the non-fire-fighting special liquid nitrogen transportation tank car through a universal standard quick connector, and the fire-fighting liquid nitrogen is provided uninterruptedly.

Description

Technical field[0001]The present invention relates to the field of fire, and more particularly to a mobile fire extinguishing system using liquid nitrogen as a fire agent and its use.Background technique[0002]In various disasters, fire is most often, one of the most general hazards of public safety and social development. When the fire is large, the combustion of combustion is severely burned, the use of fire water as a fire extinguishing agent is large. Limitations: 1. The cooling effect of fire water is limited. In the case where the fire is large or flammable, the water extinguishing effect is not satisfactory; 2. The fire water will cause secondary pollution during the fire extinguishing, although it can achieve The purpose of fire extinguishing, but will damage and damage the machinery, wire circuit. Syntyl nitrogen is used as an inert fire extinguishing agent, which absorbs a large amount of heat during gasification, and the volume expansion ratio of liquid nitrogen is up to 1...

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Problems solved by technology

[0002] Among various disasters, fire is one of the most frequent and common disasters that endanger public safety and social development. When the fire occurs on a large scale and combustibles burn violently, there is a great risk of using fire-fighting water as a fire extinguishing agent. Limitations: 1. The cooling effect of fire-fighting water is limited. In the case of a large fire or flammable materials, the fire-extinguishing effect of water is not ideal; 2. Fire-fighting water will cause secondary pollution during the fire-fighting process, although it can reach The purpose of fire extinguishing, but it will cause damage and damage to machinery, wires and circuits

[0003] Because the storage method of liquid nitrogen is relatively complicated, the existing fire-fighting devices using liquid nitrogen adopt a fixed method as a fire-fighting system for preventing and monitoring fires. When an emergency fire occurs outside the protection range of the fire-fighting system and is difficult to extinguish, the fixed The traditional liquid nitrogen fire-fighting system cannot support the fire scene in time; since liquid nitrogen needs special means to be stored, the fire-fighting reserve liquid nitrogen used at the fire scene cannot be replenished quickly after it is used up. large property damage

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