Fire-fighting and ventilation system

Abstract

The invention relates to a fire-fighting and ventilation system. The fire-fighting and ventilation system comprises a main pipeline, a heptafluoropropane fire extinguishing system, a ventilation system, an electric three-way valve, an environment monitoring unit and a control loop, wherein the main pipeline communicates with the heptafluoropropane fire extinguishing system, the ventilation systemand an equipment room, fire in the equipment room is monitored through the environment monitoring unit, when no fire exists in the equipment room, the control loop controls a piston in the electric three-way valve to be located at a first preset position, the environment monitoring unit starts the ventilation system to output natural wind to the equipment room and enable the heptafluoropropane fire extinguishing system to be shut down, when it is monitored that a fire occurs in the equipment room, the control loop controls the piston in the electric three-way valve to be located at a second preset position, and the environment monitoring unit starts the heptafluoropropane fire extinguishing system to output a fire extinguishing agent to the equipment room and enables the ventilation systemto be shut down, so that good intelligent monitoring is carried out, fire-fighting equipment is controlled to switch between a ventilation mode and a fire extinguishing mode, and the fire-fighting effect and safety of the fire-fighting system are improved.

Description

technical field [0001] The invention relates to the technical field of fire safety, in particular to a fire ventilation system. Background technique [0002] The fire protection system is one of the indispensable and important systems of the building. When a fire occurs indoors, the fire protection system should be able to extinguish the fire in time. When there is no fire in the room, the fire protection system should be able to perform normal ventilation. Monitor and control fire-fighting equipment to switch ventilation or fire-extinguishing modes, but at present, the fire-fighting systems in many buildings are not highly intelligent, and it is impossible to perform good intelligent monitoring and control fire-fighting equipment to switch ventilation or fire-extinguishing modes, resulting in fire-fighting systems. The effect is not good and the safety is not high. Contents of the invention [0003] The object of the present invention is to propose a fire-fighting ventil...

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Problems solved by technology

[0002] The fire protection system is one of the indispensable and important systems of the building. When a fire occurs indoors, the fire protection system should be able to extinguish the fire in time. When there is no fire in the room, the fire protection system should be able to perform normal ventilation. Monitor and control fire-fighting equipment to switch ventilation or fire-extinguishing modes, but at present, the fire-fighting systems in many buildings are not highly intelligent, and it is impossible to perform good intelligent monitoring and control fire-fighting equipment to switch ventilation or fire-extinguishing modes, resulting in fire-fighting systems. Not effective, not very safe

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