COLLAPSIBLE PROTECTIVE STRUCTURE ADAPTED TO STORE VESSEL CONTAINING FLAMMABLE MATERIAL Russian patent published in 2006 - IPC A62C2/06 A62C3/06 

FIELD: fire-protection means, particularly physical fire-barriers.

SUBSTANCE: protective structure comprises load-bearing frame, heat-resistant heat-insulation layer and protective decorative facing. Load-bearing frame includes a number of longitudinal and annular members and terminates in ropes connected to pole rings. Each annular member includes upper and lower flanges. Lower flange is made as two connected semi-rings, upper flange includes two steel strips concentrically abutted upon semi-rings of lower flange and connected by means of pins thereto so that single semi-ring having double-T shape is created. Heat-resistant heat-insulation layer comprises outer fabric plies and intermediate heat-resistant ply. One outer fabric ply is provided with swelling material layer. Heat-resistant heat-insulation layer is made as flat pads fastened to the frame.

EFFECT: increased speed of protective structure assembling and disassembling, improved reliability and service life.

6 cl, 9 dwg