1. Firewood valve
1. Terms explanation:
According to the "Technical Standards for Building Design Design Smoking Smoking System", the firewood valve is installed on the ventilation and air regulation systems, and the air -to -air pipeline is usually opened. When the temperature of the flue gas in the pipeline reaches 70 ° C during the fire, it is closed.In a certain period of time, the valve can be met with the requirements of smoke and fire to resist the integrity.
2. Valve structure:
The fire valve is generally composed of valve body, blades, execution agencies, and temperature sensors.
3. Firefire valve setting site
1) Crossing the fire prevention partition
2) Crossing the room wall and floor of the rooms of ventilation, air adjustment machine room, fire control room
3) Room partition walls and flooring through places with important or high fire risks
4) Cross the sides of the deformation seams across the fire separation separation
5) The horizontal pipe section at the junction of vertical air ducts and horizontal ducts at each layer.However, when the ventilation and air regulation systems of each fire prevention partition in the building are independently set, there may be no fire prevention valves at the junction of the horizontal air duct and the vertical chief pipe.
6) The bathrooms, bathrooms and kitchens in public buildings shall take stop return measures and should be used to set up a firewood valve with a nominal movement temperature of 70 ° C on the branch tube.The smoke exhaust pipes in the kitchen in the public building should be set up in accordance with the fireproof partition, and a firewood valve with a nominal movement temperature of 150 ° C should be set up in the supporting tube of the vertical exhaust pipe.
Second, smoke discharge valve
1. Terms explanation:
According to the "Technical Standards for Building Design Design Smoking Smoking System", the smoke discharge valve is installed at the tube end of each branch of the mechanical smoke exhaust system (smoke inlet).Electric opening and closing, valve with smoke.
2. Valve structure:
The smoke exhaust valve is generally composed of valve body, blades, execution agencies and other components.
3. Settings of smoke discharge valve:
The tube end of the mechanical smoke discharge system (smoke inlet inlet).
Third, smoke discharge fire prevention valve
1. Term explanation
According to the "Technical Standards for Building Design Design Design, Tobacco and Tobacco and Dationxi System", the smoke and fire prevention valve is installed on the pipeline of the mechanical smoke exhaust system. It is usually opened. When the fire temperature in the smoke exhaust pipe is 280 ° C, it is closed, and itIn a certain period of time, the valve can be met with the requirements of smoking and refractory integrity.
2. Valve structure:
Tobacco -fire prevention valves are generally composed of valve body, blades, execution agencies, and temperature sensors.
3. Smoking fire and fire prevention valve setting site
1) The horizontal pipe section of the vertical air duct and the horizontal duct of each layer;
2) A tobacco discharge system should be responsible for multiple tobacco -proof partitions;
3) The entrance of the tobacco fan;
4) Crossing the fire prevention partition.
Fourth, summary
Firewood valve: The frequent open valves used in the air conditioning ventilation system pipeline to block the spread of fire;
Tobacco discharge valve: The end of the mechanical smoke exhaust system is used to smoke normally closed valves.
Tobacco fire prevention valve: The frequent open valve used in the mechanical smoke exhaust system pipeline to prevent fire and smoke.