How does the ventilation equipment Smoke Exhaust Valve become a smoke guard to protect the space?
Publish Time: 2024-07-31
The Smoke Exhaust Valve in the ventilation equipment becomes a smoke guard to protect the space, mainly relying on its precise design, efficient working mechanism and close linkage with the fire protection system.1. Design and installation positionDesign principle: Smoke Exhaust Valve is an important part of the smoke exhaust system, usually installed at the end of each branch pipe of the mechanical smoke exhaust system (i.e., the smoke suction port). Its design aims to effectively control the emission of smoke by controlling the opening and closing degree of the smoke exhaust port when a fire occurs, thereby ensuring the safety of personnel evacuation and the effectiveness of fire extinguishing.Installation position: Smoke Exhaust Valve is generally installed in the upper part or ceiling position of the building space to ensure that smoke can be quickly captured and the smoke exhaust program can be started at the beginning of the fire. At the same time, its location selection is also convenient for personnel to operate and maintain.2. Working principleNormal state: Under normal circumstances, the Smoke Exhaust Valve is in a closed state and meets the air leakage requirements to prevent air flow and heat loss in non-fire situations.Fire response: Once a fire occurs, the smoke detector will immediately send out a fire alarm signal. At this time, the smoke exhaust valve will respond quickly and open manually or electrically to start the smoke exhaust system. If the smoke exhaust valve is linked with the fire control center, the fire control center will open the valve through the DC24V voltage to achieve automatic smoke exhaust.Temperature control: Some smoke exhaust valves also have temperature sensing functions. When the smoke temperature exceeds the set value (such as 280℃), the smoke exhaust valve will automatically close to prevent high-temperature smoke from causing further harm to equipment and personnel.3. Linkage with the fire protection systemLinkage mechanism: A close linkage mechanism is established between the smoke exhaust valve and the fire control center. When the fire control center receives a fire alarm signal, it will immediately start the smoke exhaust program, and by controlling the opening of the smoke exhaust valve and the start of the smoke exhaust fan, the smoke is extracted from the inside of the building and discharged to the outside.Safety guarantee: This linkage mechanism ensures the rapid response and efficient operation of the smoke exhaust system, providing a valuable time window for personnel evacuation and fire rescue. At the same time, the closing function of the smoke exhaust valve also avoids the risk of the fire spreading to other areas through the smoke exhaust pipe.4. Maintenance and managementRegular inspection: To ensure the normal operation of the smoke exhaust valve, it needs to be inspected and maintained regularly. Including checking whether the valve is flexible in opening and closing, whether the sealing performance is good, and whether there is damage or corrosion.Professional training: Relevant personnel need to receive professional training to understand the working principle, operation method and maintenance knowledge of the smoke exhaust valve, so that they can quickly and accurately start the smoke exhaust procedure when a fire occurs.In summary, the smoke exhaust valve in the ventilation equipment has become a smoke guard protecting the space through its precise design, efficient working mechanism and close linkage with the fire protection system. When a fire occurs, it can respond quickly and effectively control the emission of smoke, providing strong support for personnel evacuation and fire fighting.
