Evacuation indicatory sign system for tunnel fire safety

Abstract

The invention relates to fire safety class, in particular to an evacuation indicatory sign system applicable for tunnel fire safety, which comprises rectangular evacuation indicatory signs, a safety door evacuation indicatory sign and a safety door evacuation indicatory frame column, wherein the safety door evacuation indicatory frame column comprises a frame body and an LED light source; the frame body consists of two side edges and a top edge and is of an inverse U shape; and the inside of the frame body is provided with at least two LED parallel light source zones. The size of the frame body is based on the size of a safety door so as to accurately sketch the position of the safety door; the frame body is convexly arranged on the surface of a door frame of the safety door; and the safety door evacuation indicatory frame column can be formed by assembling a plurality of the rectangular evacuation indicatory signs. The system has the advantages that the system meets the requirement of the escape on special occasions such as tunnels and the like, is convenient for escape personnel to find escape exits, is favorable for the diversified selection of the evacuation indicatory signs, and provides an outer frame form with brand-new concept.

Description

technical field [0001] The invention relates to fire safety, in particular to an evacuation indicating sign system suitable for tunnel fire safety. Background technique [0002] The normal evacuation speed of people in the tunnel is 1.5m / s, but it may be only 1m / s in the case of smoke. The ultimate radiant heat tolerance value of ordinary people is 2~2.5kw / m2, and the tolerance limit of firefighters with air breathing devices is 30min, 5kW / m2. Generally, the radiant heat of the smoke layer at 160°C is 2kW / m2, and the radiant heat of the smoke layer at 270°C is 5kW / m2. The maximum air temperature of personnel during evacuation should not exceed 80°C, and the tolerance time at this temperature is about 15 minutes. Refuge facilities not only provide protection for escapees, but can also be used for firefighters to temporarily escape from smoke and heat. In the design of medium and long tunnels, it is necessary to consider the setting of personnel safety shelters, the layout ...

AI Technical Summary

Problems solved by technology

Using general rectangular evacuation signs, when a safety accident occurs, it is not easy for the parties to judge the location of the safety door closest to the accident site, thus losing the best time

[0004] Ordinary rectangular indicator signs usually have an external dimension of 420*160*35mm, and their volume is relatively small in tunnels, especially in super-large tunnels. When the traffic flow is heavy, the signs are easily blocked by the body, which is not conducive to personnel escape.

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