Heat insulation and fire fighting smoke discharge system of steel structure roof

Abstract

The invention discloses a heat insulation and fire fighting smoke discharge system of a steel structure roof and relates to the field of buildings with steel structure roofs. The heat insulation and fire fighting smoke discharge system of the steel structure roof comprises a roof body, a steel frame structure, heat insulation and smoke discharge air pipes and a double speed fan, wherein the heat insulation and smoke discharge air pipes are mounted under the whole roof, the double speed fan is connected with the heat insulation and smoke discharge air pipes and the outside, the heat insulation and smoke discharge air pipes comprise several roof air pipes which are arrayed abreast and centralized air pipes, each of the centralized air pipes is connected with one end of each of the roof air pipes, the other end of each of the roof air pipe is provided with a normally open electric fire damper and is connected with the outside, a plurality of openings are formed under the roof air pipes and are respectively provided with a normally closed plate type smoke outlet, and the centralized air pipes comprise air gathering pipes which are connected with the roof air pipes and air discharge pipes which are connected with the fan. In usual time, the heat insulation and smoke discharge air pipes play a role of heat insulation; when there is a fire, after the nearest normally closed plate type smoke outlet is opened, the automatic normally open fire damper is closed automatically, the high-speed fan is turned on automatically to discharge smoke fixedly, so that the smoke spreading is avoided effectively, and the indoor person can leave quickly and safely.

Description

technical field [0001] The invention relates to the field of steel structure roof construction, in particular to a steel structure roof heat insulation and fire-fighting and smoke exhaust system. Background technique [0002] At present, sandwich panels are generally used for the roof of steel structure buildings, and insulation materials are used inside the house to reduce heat transfer, but they still cannot withstand the direct heat of the sun in hot summer, resulting in a poor working environment inside the house. Moreover, ventilation and fire-fighting and smoke exhaust in steel structure buildings are generally only fans installed on the side walls or roofs for indoor ventilation and fire-fighting and smoke exhaust. To the ideal smoke exhaust effect. When a fire breaks out in a building, besides the fire being the fatal factor, the smoke is also a fatal factor. With the fire, the smoke is filled, and some harmful gases such as carbon monoxide in the smoke cause the tr...

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Problems solved by technology

[0002] At present, sandwich panels are generally used for the roof of steel structure buildings, and thermal insulation materials are used inside the house to reduce heat transfer, but they still cannot withstand the heat of direct sunlight in hot summer, resulting in poor working conditions inside the house

Moreover, ventilation and fire-fighting smoke exhaust in steel structure buildings are generally only fans installed on the side walls or roofs for indoor ventilation and fire-fighting smoke exhaust. To the ideal smoke exhaust effect

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