Device preventing smoke channeling upwards for assembling type building

Abstract

The invention discloses a device preventing smoke channeling upwards for an assembling type building. The device preventing smoke channeling upwards for the assembling type building comprises a firstventilating pipe arranged on the vertical shaft inner wall of each floor. A communicating second ventilating pipe is arranged at the upper end of each first ventilating pipe. The first ventilating pipes and the second ventilating pipes are of an inverted-T shape. Fans are arranged inside the second ventilating pipes. Motors are fixed to portions, located below the second ventilating pipes, of theouter walls of the first ventilating pipes. The output shafts of the motors extend inside the first ventilating pipes, and connecting rods are arranged at the output shafts of the motors. Blocking plates are arranged at the upper ends of the connecting rods. Water tanks are also arranged in the upper portions of the first ventilating pipes. Air input pipes extending to the bottoms of the water tanks are arranged in the upper portions of the second ventilating pipes. Air output pipes are arranged in the upper portions of the water tanks. According to the device preventing smoke channeling upwards for the assembling type building, the communicating state of each floor and the vertical shaft is adjusted through the rotatable blocking plates; when a fire breaks out, smoke is sucked into water,and solid polluted particles generated by the fire are absorbed and filtered; the device is a quite good prevention device; and when a fire does not break out, each floor communicates with the vertical shaft through the first ventilating pipes, air convection is achieved, and a good ventilation state is kept in the building.

Description

technical field [0001] The invention relates to the field of prefabricated buildings, in particular to a device for preventing smoke from going upward in a prefabricated building. Background technique [0002] Prefabricated buildings are a new type of construction method that uses prefabricated parts for assembly. At present, the country is vigorously promoting prefabricated buildings. Compared with ordinary construction methods, prefabricated buildings are more efficient, energy-saving and environmentally friendly, and have a high degree of standardization and informatization. The overall structure of the prefabricated building is basically the same as that of the existing building, so the inventor thinks in combination with the fire cases that have occurred: in the high-rise prefabricated building, the chimney effect can be the reason for the violent aggravation of the fire. The hot air caused by the fire in the lower floors, because of its low density, can flow upward thr...

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Problems solved by technology

Not only does it make it more difficult to fight the rescue, but it also endangers the lives of those who go to the roof to escape

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