METHOD OF FIRE-FIGHTING PROTECTION OF OPEN GASES AND A DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2019 - IPC A62C2/10 A62C5/27 E06B5/16 

FIELD: fire safety.

SUBSTANCE: invention relates to fire fighting equipment and is intended to contain a fire that has arisen in open technological openings, for example, when painting large-sized items or on the stage of an auditorium, using an elastic flame retardant barrier, made, for example, in the form of a descending curtain, made in the form of a multilayer mesh screen. Objective of the invention is to increase the efficiency of fire protection of openings by creating in them pre-fabricated fire blocking barriers. Essence of the proposed method lies in the fact that in the way of fire protection of openings, including closing the opening with several screens, for example two, blocking this opening with a fire blocking barrier by filling the screen cellular structure with non-flammable material hardening in air during a fire to seal the said opening and extinguishing the source fire extinguishing agents available when creating a fireblocking obstacle at the same time, additional filling of the space formed by the screens with non-combustible material, which is carried out in the form of a fast-hardening foam, is carried out simultaneously, moreover, the named space is divided into zones, the size of which is determined depending on the predetermined filling rate of each section with a non-combustible material and the time of hardening of the fast-hardening foam. Essence of the claimed device lies in the fact that in the fire-blocking device for fire protection of openings, containing a multi-layer mesh screen, made, for example, in the form of a two-layer package, and means for filling the cellular structure of the screen with a non-combustible hardening material in case of fire in the air for sealing the said opening, volume formed by the multi-layer screen is divided into sections, and the non-combustible material is made in the form of a quick-hardening foam.

EFFECT: claimed technical solution is easy to use and allows the operation of creating a local fire protection facility in case of an emergency situation to be performed several times with a single fire-blocking device, when human intervention in the ongoing process in these conditions is usually short-lived or almost impossible.

2 cl, 11 dwg