Abstract: Aiming at the industrial pain points with single delivery mode and difficulty in supply of nitrogen fire-extinguishing agent, the design concept and integrated process of the mobile fire-extinguishing equipment with nitrogen generation, which integrated the functions of nitrogen production, nitrogen storage, nitrogen supply, nitrogen transportation, nitrogen retention and nitrogen coupling, has been proposed and innovatively applied to a large-span aerial fire-fighting vehicle. The mobile fire-extinguishing equipment with nitrogen generation has the functions of water, foam, powder, compressed nitrogen foam, nitrogen and other fire-extinguishing functions, thus giving full play to the technology and tactics of "combination on process disposal and fire disposal" and "solid / gas and liquid / gas fire-extinguishing synergy", which is suitable for fire-fighting and rescue needs in scenarios with insufficient water source and unsuitable water-extinguishing agent. The development and application of mobile fire-extinguishing equipment with nitrogen generation can provide fire-fighting equipment protection and fire-extinguishing technical and tactical support for rescue of various chemical and special fire accidents.

Key words: nitrogen fire-extinguishing agent, mobile fire-extinguishing equipment with nitrogen generation, aerial fire-fighting vehicle, cooperative fire-extinguishing tactics