Combined distribution type automatic gas fireproof safe system and application method thereof

Abstract

The invention discloses a combined distribution type automatic gas fireproof safe system. The combined distribution type automatic gas fireproof safe system comprises a nitrogen gas source, a gas supplying main pipeline, a combined distribution device, control circuits, a control device and at least one fireproof protection space, wherein a gas inlet of the combined distribution device is connected with a gas outlet of the nitrogen gas source by the gas supplying main pipeline; each fireproof protection space is internally provided with a nitrogen gas outlet and an oxygen concentration detection device; each nitrogen gas outlet is connected with a gas outlet of the combined distribution device by a nitrogen gas distribution pipeline; and the control device is connected with the oxygen concentration detection devices and the combined distribution device by the control circuits respectively. According to the combined distribution type automatic gas fireproof safe system, the concentration of oxygen in the space can be automatically controlled and maintained to be below the lowest concentration needed by substance combustion, and can be controlled to be more than the lowest concentration for maintaining the life safety of workers in the fields in which the workers are positioned, so that the aims of preventing from combustion and guaranteeing the safety of the workers are realized; and meanwhile, the explosion accident risk of a high-pressure container is also avoided.

Description

Technical field [0001] The invention relates to the technical field of fire safety, in particular to a combined distribution type automatic gas fire safety system and its application method. Background technique [0002] At present, for the sake of fire safety, various automatic fire extinguishing systems are usually installed in buildings. For closed spaces with important equipment or materials (such as various computer rooms, important material warehouses, etc.), in order to prevent the protected objects from being fouled by the fire extinguishing medium, a chemical or inert gas fire extinguishing system is often installed. These gas fire extinguishing systems must use a large number of high-pressure steel cylinders or large-capacity pressure vessels to store the fire extinguishing medium required for fire extinguishing on site for a long time, and release it when a fire occurs, and use the chemical or physical effects of gas to extinguish the fire. [0003] An important ...

AI Technical Summary

Problems solved by technology

An important defect of various gas fire extinguishing systems is that it will inevitably cause harm to personnel in the protected space (including suffocation and poisoning), as well as damage to internal equipment and materials (cold shock, jet impact, etc.)

Even some so-called gas fire extinguishing systems that can control the fire extinguishing concentration and achieve harmless to the safety of personnel, in actual use, it is difficult to meet the various conditions to ensure the safety of personnel (such as the volume of the protective space, the amount of fire extinguishing agent) etc.), so the goal of no harm to personnel is still not achieved

[0004] Due to the long-term standby status of the gas fire extinguishing system, and the unpredictability, suddenness and severity of the fire, it is inevitable that the fire extinguishing system will fail when needed, leading to fire disasters, and the significance of building a large number of fire safety systems lost

Reality has proved that a large number of gas fire extinguishing systems also bring serious high-pressure container explosion and gas injury risks

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