Circulation water curtain smoke prevention system used in high-rise building fire

Abstract

The invention relates to a high-rise building fire smoke prevention system, in particular to a circulation water curtain smoke prevention system used in a high-rise building fire. The circulation water curtain smoke prevention system comprises an impounding reservoir, a sinking pump, a circulating water tank, a pressure meter, a filter device, a flow control valve, a water curtain water tank, a flow stabilization device, a flow distribution device, a flow equalizing device, a flow guide device, a structural steel support, a smoke mist detector, a temperature detector, a continuous water curtain, a fire protection controller, a grating, a lower-layer floor, an upper-layer floor, a door pocket, a pollution removal device, a water replenishing device, a water replenishing valve and a blowdown apparatus. The circulating water tank is arranged on the left side of the impounding reservoir, the sinking pump is installed in the circulating water tank, a water pipe connected with the sinking pump enters the water curtain water tank through the pressure meter, the filter device and the flow control valve, and the flow guide device is arranged at the position of an outlet of the water curtain water tank; the water pipe is connected with the flow distribution device, and the flow distribution device is connected with the flow equalizing device; and the fire protection controller controls the flow control valve, the sinking pump, the water replenishing valve of the water replenishing device and a blowdown valve of the blowdown device.

Description

technical field [0001] The invention relates to a high-rise building fire and smoke prevention system, in particular to a high-rise building fire circulation water curtain smoke prevention system. The circulating water curtain system of high-rise buildings is installed at the front room and passage door of the evacuation stairwell of the high-rise building to prevent the smoke from entering the evacuation stairwell to protect the safe evacuation of personnel. The invention belongs to the technical field of smoke prevention and exhaustion of ventilation and air conditioning of high-rise buildings. Background technique [0002] The characteristics of high-rise buildings determine the high risk of fire in high-rise buildings. It is specifically reflected in: the fire produces a lot of smoke, there are many evacuated people, there are many fire victims, the toxicity of the smoke is high, the fire spreads quickly, the smoke diffuses quickly, it is difficult to evacuate safely, a...

AI Technical Summary

Problems solved by technology

The smoke exhaust efficiency is unstable, and may even cause smoke filling in the stairwell or the front room, which seriously affects the evacuation of personnel;

[0006] (2) The way of mechanical smoke exhaust and natural air intake in the front room: the smoke will enter the front room and spread to the stairwell, which is not conducive to the safe evacuation of personnel

[0008] (4) The way of sending and exhausting smoke in the front room: when a fire occurs, once the door of the front room is opened, the smoke can still enter the room, affecting the evacuation of personnel;

However, the fire circulation water curtain smoke prevention method for high-rise buildings is still blank

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