Precautions for use of fire dampers
Dezhou Lai Sen Environmental Technology Co., Ltd.
The main purpose of the fire damper is to install on the air supply and return air ducts of the ventilation and air conditioning system, which is normally open. When the temperature of the smoke in the pipe reaches 70 degrees during a fire, it is closed, and it can meet the smoke leakage in a certain period And fire integrity requirements, it plays a role in preventing fire and smoke. The main precautions for daily fire valve use are:
When we use a fire damper, this type of fire damper will use the detector to emit sounds and lights, print the alarm content, convert the fire alarm signal sent by the detector in the area into an audible and visual alarm signal, and output the signal to the centralized Alarm controller.
When a circuit alarms, press the mute button to silence the sound. If the controller receives alarm signals from other circuits at this time, it can still generate audible and optical alarms.
As the automatic fire alarm system automatically monitors fire alarms and various faults, and the system is usually in a monitoring state, when there is no fire alarm or failure, the user cannot know whether these automatic monitoring functions are intact.
The function of the centralized fire alarm controller is to connect several regional alarm controllers to form a system that receives the fire alarm signals and fault signals from each area alarm controller, promptly instructs the fire alarm area or the location of the fault area, and emits sound and light. Alarm.
Six key points for buying fire dampers
With the development of technology, many high-tech products have been put on the market one after another and widely used. The same is true of fire dampers, which can effectively improve people's living environment and quality of life. The following points are important when selecting a fire damper:
Point one: The main control parameters of the fire damper are specifications.
Point two: When selecting a fire damper valve, pay attention to the function of the valve, such as normally open or normally closed, automatic close open, manual close open, manual reset, signal output, remote control and other requirements.
Point three: If the valve is linked with a fan, a double micro switch device should be used.
Point four: The fire damper is suitable for ventilation and air-conditioning systems. Except for the fire damper for kitchen fume exhaust systems in public buildings, which has an operating temperature of 150 ° C, the fire damper for general ventilation and air conditioning systems has an operating temperature of 70 ° C.
Fifth, the fire valve is suitable for the pipes of ventilation, air conditioning or smoke exhaust systems.
Point six: The valve body blades should be steel plates with a thickness of 2 ~ 6mm. The valve body should be made of non-combustible materials. The rotating parts should be made of corrosion-resistant metal materials and can be rotated flexibly. The shell thickness of the valve shall not be less than 2mm. The fusible parts shall meet the approval standards of the fire department.