Fire detection and control method and system for building outer wall fire

Abstract

The invention provides a building outer wall fire detection and control method and system. The method comprises the steps that whether the temperature, collected by a temperature sensing cable laid on a building outer wall, of each position reaches a threshold value or not is monitored; when the temperature reaches a threshold value, at least two fire extinguishing devices are selected according to position information corresponding to the temperature, and water supply pressure and / or flow are / is set; according to the position information, the position information of the selected fire extinguishing device, the pressure and / or the flow, the pitching angle and / or the horizontal rotation angle of the selected fire extinguishing device are / is calculated, and a sprayed water column of the selected fire extinguishing device acts on a building outer wall area corresponding to the position information; and starting the selected fire extinguishing device to spray a water column.

Description

technical field [0001] The invention relates to the field of fire protection, in particular to a method and system for fire detection and control of a building exterior wall. Background technique [0002] With the widespread promotion and application of external wall thermal insulation technology in my country, external wall thermal insulation fires occur frequently, especially for high-rise building external wall thermal insulation fires, which have attracted widespread attention from all walks of life. Fire accidents caused by external thermal insulation materials not only cause huge property losses, but also lead to heavy casualties, which makes how to effectively control the spread of external thermal insulation fires in buildings to be an urgent livelihood issue. [0003] 80% of our foreign thermal insulation materials use organic polymer foam materials, which have certain flammability. At present, there is no material that can completely replace such combustible organi...

AI Technical Summary

Problems solved by technology

The external thermal insulation system does not have the ability to prevent the spread of fire. Under fire conditions, due to the continuous insulation material of the external wall building, the risk of fire spread is relatively high. The spread path is through the upward spread of flames or downward dripping of molten droplets, resulting in The three-dimensional fire on the facade of the building spreads to the interior through the window, but the existing building fire protection facilities cannot effectively control or extinguish the fire spread.

2. Difficulty in fire rescue. Building insulation materials produce a large amount of toxic and harmful smoke after burning. Fire rescue personnel will be blocked by smoke when they go deep into the fire scene, which will bring great difficulties to fire rescue work.

At present, most of the external walls of buildings are not equipped with special fire prevention and fire extinguishing equipment. Therefore, in order to ensure the safety of buildings and personnel, it is particularly important to find a fire detection and control device suitable for external thermal insulation.

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