Dynamic balance nitrogen injection system with interconnected multi-network nitrogen making equipment

The invention discloses a dynamic balance nitrogen injection system with interconnected multi-network nitrogen-making equipment, which is characterized in that conventional underground nitrogen injection systems of a plurality of goaf areas in the same mine are communicated with one another by adopting a nitrogen injection pipe network, and when a nitrogen gap exists in a certain goaf area, other nitrogen-making equipment communicated with the nitrogen injection pipe network is called; and adjusting the number of the started nitrogen making devices according to the working states of the nitrogen making devices in the other goaf and the nitrogen output flow so as to complement the nitrogen gap in the goaf. According to the invention, a plurality of nitrogen-making devices in the same mine are connected and connected through the nitrogen injection pipe network, so that nitrogen-making resources of excessive or idle nitrogen-making devices are reasonably called, and the problem that temporary nitrogen gaps may o