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3C fire damper gate valve smoke leakage electric fire damper application

Release Time：2021-07-15

The structure of 3c fire valve, the key is composed of oil circuit board and electric actuator. The oil circuit board is composed of cover shell, movable joint, leaf and leaf linkage organization, etc. The electric actuator is composed of shell, leaf adjustment organization, clutch plate, temperature circuit breaker, etc.
1. The trend that the smoke leakage of the gate valve continues to rise will be because when the temperature in the furnace rises to the necessary value, the impact toughness of the leaves exceeds the limit. With the development of the experiment, the bending level of the leaves continues to expand, and the gap between the leaves and the outer frame and between the leaves also increases, which promotes the smoke leakage of the gate valve to rise. In addition, at high temperature, the elastic force of the elastic yellow is reduced, which will also cause the increase of the smoke leakage of the gate valve.
2. The basis of the smoke leakage of the gate valve will remain unchanged. After the leaf is bent to the necessary level of the fire valve, its strength and elongation rate will change less, which will promote the situation of the fire valve to remain stable.
3. The smoke leakage of the gate valve tends to decrease. Because the bending process of the leaves has not been completed and the impact toughness of the leaves does not exceed the limit, the smoke leakage of the gate valve will still decrease.

The function of normally open exhaust 3c fire damper is given:
1. It is usually turned on. When a fire occurs, the control center will output DC24V power and the gate will be automatically turned off.
2. When the pipeline temperature exceeds 280 ℃, the circuit breaker is in the position and the gate valve is automatically closed.
3, the output gate valve to turn off the signal, interlock exhaust fan termination.
4. It can be turned off manually or opened manually.
I don't want to say much about the daily use and precautions of electric fire dampers. The current construction units have done a good job in the installation of electric fire dampers.
The main purpose of the 70 ℃ electric fire damper is to be installed on the ventilation, air conditioning system supply and return air pipes, which are usually open. When the smoke temperature in the pipe reaches 70 degrees, it is closed when the smoke temperature in the pipe reaches 70 degrees, and it can meet the requirements of smoke leakage and fire resistance at a certain time, and plays the role of smoke isolation and fire prevention. The main matters needing attention in the daily operation of the 70 ℃ electric fire damper are:.
When we use the 70 ℃ electric fire damper, this type of 70 ℃ electric fire damper will use the detector to announce the movement and light, print the alarm content, convert the fire signal sent by the detector in the area into the sound and light alarm signal, and output the signal to the rendezvous alarm control fire damper together. When a loop alarms, press the silencer button to silence the sound, if the controller of the 70 ℃ electric fire damper bears the alarm signal of its electric fire damper circuit at this time, the electric fire damper can still make sound and light alarm, because the automatic fire alarm system automatically monitors the fire and various defects, and the system is usually under supervision. When there is no fire or defect, the operator cannot know whether these automatic monitoring functions are free.
The function of the 70 ℃ electric fire damper meeting fire alarm controller is to connect several regional alarm controllers to form a system. The 70 ℃ electric fire damper receives the fire signal and defect signal from each regional alarm controller, indicates the fire area or the defect area in time, and announces the sound and light alarm signal.