Tunnel intelligent blowing and sucking type air curtain smoke prevention and exhaust device and operation method

Abstract

The invention discloses a tunnel intelligent blowing and sucking type air curtain smoke prevention and exhaust device and a control method, and belongs to the technical field of tunnel smoke exhaust. Comprising a fixing frame, the fixing frame is installed on the two sides of a tunnel wall, a smoke flow channel is installed on the fixing frame to form a main body structure, and the wireless signal transmission module receives wireless signals, transmits instructions to a power circuit module and drives a fan power module to operate. And the fan power module generates airflow to form an air curtain along the tunnel through the smoke airflow channel. According to the device, after a fire occurs in a tunnel, the two air curtains are opened at the same time, the blown air curtains form blocking to prevent the smoke diffusion range from being enlarged, poisonous and harmful smoke, blown airflow and part of entrainment air are exhausted through air suction, blowing and suction are combined, the smoke is controlled within a certain range, safe evacuation of personnel and vehicles is guaranteed, and smoke damage is avoided.

Description

technical field [0001] The invention relates to tunnel smoke prevention and exhaust technology, in particular to an intelligent blowing and suction air curtain smoke prevention device for tunnels. Background technique [0002] In recent years, with the continuous development of the tunnel construction process, the tunnel construction process has been continuously advanced, which has brought great convenience to people's life and travel. However, in the process of high-speed construction and development of tunnels, many safety problems have also been brought about. Fire safety is one of the focuses of people's attention. Since the tunnel is a narrow and relatively closed space, once a fire accident occurs, it is easy to develop rapidly, generating a large amount of smoke that is difficult to discharge, reducing visibility, causing congestion, and affecting personnel escape. Therefore, it is of great practical significance to study the smoke control and exhaust system of tunn...

AI Technical Summary

Problems solved by technology

However, if the longitudinal ventilation wind speed is less than the critical wind speed, the hot smoke layer at the top of the tunnel will produce a backflow phenomenon

Horizontal smoke exhaust uses the smoke exhaust duct at the top of the tunnel to evenly exhaust and supplement the air. However, the investment in tunnel construction is relatively large

[0004]Single-jet air curtain has a good smoke isolation effect, but it does not have a smoke exhaust function, and needs supporting smoke exhaust facilities to achieve better smoke control effect

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