Precautions for the use of fire dampers
Nov 24,2022
Precautions for Fire Damper Equipment Use
As an important fire protection device in our lives, fire damper equipment can do more if used correctly, but if not used properly, more work is needed for protection. Therefore, let's learn about the precautions for using fire damper equipment.
Details of Fire Damper Equipment Usage Precautions
First, I need to know how to use this fire damper equipment.
1. The main control parameters for selecting fire damper equipment are specifications, etc.
2. Fire damper equipment is suitable for ventilation and air conditioning systems. Except for fire dampers used in public building kitchen exhaust systems, which have a working temperature of 150, fire dampers in general ventilation and air conditioning systems have a working temperature of 70.
3. Suitable for pipes in ventilation, air conditioning, or exhaust systems; basic functions and scope of application are shown in Table 1.
4. When selecting fire damper equipment, please pay attention to the valve's functions. Requirements include normally open, normally closed, automatic closure, manual closure, manual reset, signal output, and remote control.
5. When the valve is linked with the blower, please use a double micro-switch device.
6. The valve body blades are made of steel plate, with a thickness of 2-6mm. The valve body is made of non-combustible material. The rotating parts are made of corrosion-resistant metal material and rotate flexibly. The valve shell thickness should be controlled below 2mm. Fusible parts must meet the approval standards of the fire department.
Fire damper equipment is mainly used for pipes in ventilation and air conditioning systems. It is normally in the "normally open" state. When the air temperature reaches 70, the fuse inside the valve will automatically close.
Exhaust ports and exhaust valves are mainly installed on the pipes of the exhaust system or at the intake of the fire exhaust fan. They are normally closed and automatically open for exhaust during a fire.
Fire damper equipment is set at the fan inlet where the exhaust system and ventilation and air conditioning system are combined. It can be ventilated in the "normally open" state. When the air temperature in the pipe reaches 280, the valve is automatically closed by the fusible metal temperature fuse, blocking the airflow and preventing the fire from spreading. Some building fire protection projects may reuse this equipment. Chongqing Tobacco Building is one example.
Commercial buildings are mainly for offices and business, with long corridors. They are equipped with mechanical exhaust systems, with only one smoke control zone per floor. Each floor's exhaust main pipe has an electrically normally closed fire damper, each floor's exhaust port has an electrically normally closed exhaust valve, and the intake of the fire exhaust fan also has an electrically normally closed fire damper equipment. Obviously, this design has functional waste and wastes modules, valves, and building costs.
It is recommended to remove the exhaust port exhaust valve and module, change the air outlet to a single-layer louver, and require that the electrically normally closed fire damper equipment on each floor's exhaust main pipe be changed to a normally open fire damper that closes at 280 degrees, and the control module be changed to a general monitoring module. Both methods meet the requirements of fire regulations and are very reliable in actual control. This is an introduction to the precautions for using fire dampers. For more information on precautions for using fire damper equipment, please follow us.
The above is an introduction to the precautions for using fire damper equipment. If you need to know more, please feel free to contact us! Our company has many years of experience and is always looking forward to your joining.
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