Horizontal smoke exhaust device capable of preventing smoke from being sucked through

Abstract

The invention provides a horizontal smoke exhaust device capable of preventing smoke from being sucked through. The smoke exhaust device is connected with a horizontal smoke exhaust pipeline for use, and comprises a flow guide device and a smoke exhaust short pipe, wherein the smoke exhaust short pipe communicates with the smoke exhaust pipeline; the flow guide device comprises an upper cover plate, a lower cover plate and flow guide blades between the upper cover plate and the lower cover plate; and a suction inlet is defined by each two adjacent flow guide blades and communicates with the smoke exhaust short pipe. According to the horizontal smoke exhaust device capable of preventing the smoke from being sucked through provided by the invention, the smoke exhaust efficiency can be effectively improved; and the horizontal suction inlet for air suction is defined between every two flow guide blades of the flow guide device, and the multiple suction inlets can enable the suction speed of the smoke to be stable, so that the occurrence of the phenomenon that the exhausted smoke is sucked through can be prevented.

Description

technical field [0001] The invention relates to the technical field of fire-fighting equipment, in particular to a horizontal smoke exhaust device for preventing suction penetration. Background technique [0002] In recent years, building fires have occurred frequently, resulting in a large number of casualties and property losses. The fire smoke is the main cause of casualties, because the harmful components of the smoke or lack of oxygen make people directly poisoned or suffocated to death; the shading effect of the smoke makes it difficult for people to escape and is trapped in the fire area; the high temperature of the smoke Hazards can lead to a reduction in the strength of metallic materials, which in turn can lead to structural collapse and casualties. The smoke not only caused casualties, but also made it difficult for firefighters to fight. Therefore, it is very important to control the smoke in time and quickly and effectively discharge it when a fire occurs. ...

AI Technical Summary

Problems solved by technology

During the smoke exhaust process, the horizontal smoke exhaust port will cause a large disturbance to the lower smoke layer, causing the smoke layer to be depressed, and even form the smoke exhaust phenomenon, resulting in a significant reduction in mechanical smoke exhaust efficiency.

Experiments have shown that when the phenomenon of suction occurs, the efficiency of horizontal smoke exhaust will be greatly reduced

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