Liquid nitrogen explosion suppression and fire extinguishing device in energy storage cabin

Can liquid nitrogen be used to extinguish underground mine fires?

According to previous experience, liquid nitrogen can be used to extinguish underground mine fires. Urban underground utility tunnel belongs to the enclosed underground space, in which a certain fire prevention zone is set up inside. In theory, the liquid nitrogen fire extinguishing system is adapted in utility tunnel.

What is liquid nitrogen (ln 2)?

As an efficient and environmentally friendly cryogenic extinguishing agent, liquid nitrogen (LN 2) is highly promising for fire extinguishing in narrow and long underground confined spaces. It is difficult to tackle the urban utility tunnel fire due to its complex and narrow structural characteristics.

When was liquid nitrogen used to extinguish a fire?

Nitrogen formed by canned liquid nitrogen has been used to extinguish the spontaneous fire at the bottom of coal seams at the British Rosslyn Mine as early as 1953. The invention of the mobile nitrogen making device made this method widely used in mine fires .

Is liquid nitrogen suitable for fire extinguishing in urban underground utility tunnel?

Because of its strong cooling ability, inerting ability and good asphyxiation effect, it is suitable for the fire extinguishing in utility tunnel. In this paper, the feasibility of liquid nitrogen fire extinguishing in urban underground utility tunnel was discussed.

What is the extinguishing effect of ln 2?

The extinguishing effect is related to the LN 2 release distance and direction. As an efficient and environmentally friendly cryogenic extinguishing agent, liquid nitrogen (LN 2) is highly promising for fire extinguishing in narrow and long underground confined spaces.

Can liquid nitrogen extinguish a power cable fire?

Experiments show that liquid nitrogen can effectively extinguish power cable fires. And it is mainly achieved by asphyxiation. Cooling during the vaporization of liquid nitrogen can inhibit the development of the fire rapidly.