Smoke exhaust fire dampers and fire fighting components are generally installed on the pipelines of mechanical smoke exhaust systems. They are usually open. When a fire breaks out, they are open to exhaust smoke. When the smoke temperature in the smoke exhaust pipeline reaches 280 degrees, they are closed, and the requirements for smoke leakage and fire resistance integrity are satisfied within a certain period of time, so as to prevent smoke and fire.
Smoke fire damper is now gradually being widely used. We are no stranger to the ultra-high function of the smoke damper. We must use it reasonably and give full play to its ultra-high function. Then the active reset function of the smoke damper is normally closed. When a fire breaks out, DC24V power supply is input from the control center and the valve is actively opened.
When we use smoke exhaust fire dampers, this type of smoke exhaust fire dampers will use detectors to emit static and light, print alarm contents, convert fire alarm signals sent by detectors in the area into acousto-optic alarm signals, and output signals to the alarm controller together. When one loop gives an alarm, press the silencer button to silence the sound. If the fire damper controller bears alarm signals from other loops, it can still generate sound and light alarm.

The difference between fire dampers and smoke dampers.
The fire damper is installed on the central air-conditioning supply, exhaust air or simple indoor supply and exhaust air duct. After a fire breaks out in the room, the fusible rod of the fire damper melts when it reaches 70 degrees, and the fire damper is closed. The effect is to prevent the fire source and smoke from concatenating to other rooms through the pipeline after a fire breaks out in one room.
When the smoke exhaust fire damper is installed on the smoke exhaust pipe, the smoke exhaust fire damper is always closed. When the room is on fire, the smoke exhaust fan advocates to open the smoke exhaust fire damper together to exhaust the smoke in the fire room so that the arriving personnel can escape in time without being damaged by smoke. When the fire is too large, the flame will enter the smoke exhaust pipe through the exhaust vent. At this time, the 280 ° fusible rod on the smoke exhaust fire damper is blown, the smoke exhaust fire damper is closed, and the exhaust fan is closed, giving a signal.
The difference between the two is that the fire damper is to prevent fireworks from entering other people's rooms through the air conditioning pipeline, while the smoke exhaust fire damper is to prevent the high temperature fire damper from relaxing.

Last time we briefly understood the differences between fire control valves and smoke exhaust fire dampers from the structure. Is there any difference between the two in function? Let's take a brief look at the following:
The smoke exhaust fire damper belongs to the fire control smoke exhaust system and is installed on the smoke exhaust pipe. When the smoke temperature in the pipe reaches 280 ℃, the valve is "opened" through the control module after a fire breaks out to implement the smoke exhaust function. When the temperature in the flue reaches 280 ℃, the fuse wire is actively fused, signals are given together, the corresponding smoke exhaust fan is closed, the requirements of smoke leakage and fire resistance are met within a certain period of time, and the fire prevention effect.
The fire control valve is installed on the air conditioning and ventilation system and is installed on the air supply and exhaust duct. After a fire breaks out, when the smoke in the ventilation duct reaches 70 ℃, the 70-degree fuse may control the module to implement the "closing" function to prevent the burning air from crossing different smoke prevention zones and extending along the air conditioning duct, thus achieving the effect of isolating smoke and preventing the fire from extending to other areas.
Fire damper fire control valve is used on the air supply and return pipes of ventilation and air conditioning systems. It is usually opened. Once a fire occurs, the gas temperature in the pipe will close itself when it reaches 70 ℃, and can meet the requirements of fire resistance stability and fire resistance within a certain period of time. It plays the role of smoke isolation and fire prevention. Smoke exhaust fire damper is used on the pipe of smoke exhaust system or at the suction inlet of smoke exhaust fan. It is usually closed, after the fire alarm signal manually or automatically open the valve, according to the function of the system to cooperate with smoke exhaust, when the flue gas temperature in the pipeline reaches 280 ℃, it is automatically closed, and can meet the requirements of fire stability and fire resistance within a certain period of time, and play the role of smoke isolation and fire prevention.
Fire control valve includes gravity fire damper, fire control valve, fire tuyere, pneumatic fire damper, smoke fire damper, electronic automatic control smoke fire damper and other products. Smoke exhaust fire damper includes smoke exhaust fire damper, plate type smoke exhaust port (for ceiling), shaft smoke exhaust port and other products. Fire control valve and smoke exhaust fire damper are important components in ventilation, air harmony and smoke control systems.
Shandong Xingheng Environmental Technology Group Co., Ltd. is located in Luquantun Development Zone, Dezhou, Shandong Province, the hometown of glass fiber reinforced plastic in China. The company has three-level qualification for construction mechanical and electrical installation engineering, three-level qualification for environmental protection engineering, and safety production license. It is the first in the industry to pass ISO9001 quality management system certification, ISO14001 environmental management system certification, OHSAS18001 occupational health management system certification, an axial fan invention patent, a fan utility model patent, EIA, three at the same time waiting for complete procedures