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.