Air intake and exhaust system for researching influence of ventilation on fire

Abstract

The invention relates to an air intake and exhaust system for studying the influence of ventilation on a fire, and belongs to the technical field of fire accidents, the air intake and exhaust system is arranged on a combustion chamber, and the air intake and exhaust system comprises a first air pipe group, a second air pipe group, a smoke exhaust pipe group, a first air intake fan, a second air intake fan and a smoke exhaust fan, air pipe openings of the first air pipe group are formed in the upper part of the outer side of the combustion chamber; air pipe openings of the second air pipe group are formed in the lower part of the combustion chamber; a smoke outlet of the smoke exhaust pipe set is vertically formed in the middle of the top end of the combustion chamber. An air inlet of the first air inlet fan is communicated with the first air pipe set, an air inlet of the second air inlet fan is communicated with the second air pipe set, and an air outlet of the smoke exhaust fan is communicated with the smoke exhaust pipe set. A first control valve is arranged between the first air inlet fan and the smoke exhaust fan, and a second control valve is arranged between the smoke exhaust fan and the second air inlet fan. The device can realize upper-side air inlet and lower-side air exhaust or lower-side air inlet and upper-side air exhaust at different positions, and can be used for researching the influence of ventilation on indoor fire.

Description

technical field [0001] The invention belongs to the technical field of fire accidents, in particular to an air intake and exhaust system for studying the influence of ventilation on fire. Background technique [0002] Fire accidents directly or indirectly affect safety-related buildings (structures), systems and components. In the event of a fire accident, the high temperature environment will damage the building facilities, and even further cause an explosion accident; the heat radiation and a large amount of toxic and harmful smoke and dust generated in the fire will directly cause casualties near the fire. [0003] Indoor fire accident is an important concern in the process of industrial safety production. In the case of mechanical ventilation, when a fire occurs in the room, the ventilation will affect the combustion process. The ventilation velocity and the location of the vent are important factors that affect the smoke flow, visibility, temperature field distribution...

AI Technical Summary

Problems solved by technology

In a fire accident, the high temperature environment will damage the building facilities, and even further cause an explosion accident; the heat radiation and a large amount of toxic and harmful smoke generated in the fire will directly cause casualties in the vicinity of the fire

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