Large-space fire ventilation simulation device with adjustable atrium size

Abstract

The invention discloses a large-space fire ventilation simulation device with an adjustable atrium size. The device comprises a main body space and an atrium space arranged above the main body space,wherein the main body space comprises four main body space side walls connected in sequence and a main body space ceiling on the tops of the main body space side walls; two main body space top movableinsertion plates are correspondingly arranged on the main body space celling; an atrium space movable side wall is vertically arranged on each of adjacent sides of the two main body space top movableinsertion plates; when the two atrium space movable side walls have relative displacement, the two atrium space movable side walls and two atrium space fixed side walls are connected alternatively toform an atrium space, and the size of the atrium space can be changed along with the relative displacement; an atrium space top opening is formed in the top of the atrium space, and the atrium spacetop opening is adjustable in size. Atrium height, atrium width and top opening area of the fire ventilation simulation device are all adjustable, so that fire safety in the large-space atriums with diverse sizes and spaces is effectively ensured.

Description

technical field [0001] The invention relates to the field of building fire ventilation safety, in particular to a large-space fire ventilation simulation device with adjustable size of an atrium. Background technique [0002] With the rapid development of the economy and society, more and more large-space buildings are being built in my country, such as various commercial complexes. There is also a greater risk of fire. At present, scholars have conducted a lot of research on fire detection and control of large-space buildings, including physical experiments and computer simulation experiments, and there are many research directions. The height of the smoke layer is used to guide the fire smoke ventilation, and to make effective choices for the fire ventilation of complex large-space buildings to ensure the safety of large-space buildings and the safety of personnel. [0003] Studies have shown that the movement of fire smoke is affected by the shape of the space and the ve...

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Problems solved by technology

[0003] Studies have shown that the movement of fire smoke is affected by the shape of the space and the ventilation flow, but most of the current research on fire smoke movement is only for rectangular tall spaces, and there is no research on fire smoke movement in complex and large spaces

The atrium is a common inner courtyard space of a large-space building. It is usually square, and its size varies with the space layout requirements. However, the size and space of the fire ventilation simulation device for studying fire smoke movement in large-space buildings are currently limited, and it is impossible to simulate the research In a large-space building, the atrium with various sizes and spaces is carried out under different wind speeds and fire source powers, the smoke movement in the atrium with different heights and widths and the top opening area is different, and the change of the size of the atrium space affects the smoke. Due to the influence of air flow, fire safety in complex and large spaces cannot be guaranteed

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