Main functions of smoke exhaust fire damper
There are two items of 3C fire damper product testing items: close reliability. In the ten closing operation, the 3C fire damper should be able to be shut off from the opening and closing operation in a flexible and reliable manner. All parts and components should have no obvious deformation, wear and other damage affecting the sealing performance. When the fire is shut down, the manufacturer sells direct 3C fire damper, and uses the alcohol lamp or other fire sources to melt the 3C fire damper. After the action of thermo sensor, the custom-made multi leaf regulating valve is all model. The 3C fire valve should be shut down automatically and shut down reliably, including: the 3C fire valve is automatically closed; the 3C fire valve is automatically closed; the gap between the blades or between the blade and the baffle is not more than 2 millimeters.
The smoke exhaust fire damper is not an independent smoke prevention and fire product in the actual project, but has its unique linkage logic relationship in the whole fire linkage control system. Therefore, in order to ensure its function in the fire fighting system, the system must be adjusted according to the linkage requirements before the system is checked and accepted, so that ventilation, air conditioning and smoke control systems meet the standard requirements. After acceptance, there should be a dedicated person to carry out planned daily maintenance management, a large number of wholesale automatic fire damper specifications are complete, in order to protect the body in normal condition, in the role of smoke prevention and fire play its function.
In the air supply system, the wind sent by the blower must be distributed through the main pipe to the branch pipe. In the smoke extraction system, the flue gas is discharged from the branch pipe to the main pipe and then enters the smoke exhausting fan. When a fire occurs in a building, in the ventilation and air conditioning system, in order to prevent the fire from spreading through the air supply system, when the gas temperature in the air supply system reaches 70, the fuse on the fire damper mechanism acts, and the valve also rapidly closes the valve to cut off the flue gas and the fire path along the wind pipe. Similarly, in the smoke exhaust system, when the fire occurs, the smoke valve opens, and the smoke is discharged. In order to cut off the high temperature flue gas flowing in the exhaust pipe line and prevent the fire from spreading to another fire compartment, when the exhaust gas temperature reaches 280, the fume fire damper and the fuse on the smoke outlet are moved, and the valve must be automatically closed to stop the smoke exhaust. It can be seen that the fire prevention valve and smoke exhaust valve have achieved the general principle, which is the function of smoke isolation and fire suppression.
On the air duct of the air conditioning system, the purpose of installing the fireproof valve is to cut off the airflow quickly and prevent the spread of fire when a fire occurs. Fire control valve diagram, when the fire occurs, the air channel is affected by the ambient temperature and the temperature rises. When the fire reaches a certain temperature in the duct, the fusible sheet is fused. The valve plate connected by the fusible sheet is then removed from the fusible sheet and closed to prevent air passage. In order to stop the air supply to the system and install electrical signals and interlocking devices on the fire damper, the valve plate will be sent off when it is closed, so that the fan will stop running.
The cleaning and maintenance of fireproof valves and the cleaning and maintenance of fire-fighting valves are also legitimate requirements and important parts of building fire safety management. They need to follow the British standard BS9999:2008. People hope that there will be no fire, so the fire valve will remain open. For a long time, the fire damper will be covered with dust, stiff and slow. Because most of the time has been in an open state, if the fire valve in Dazhou is in a sudden situation, it will be the key to ensure that the fire valve is effectively closed when needed.
Determining the above requirements is never a simple task, mainly because of the location of the fire damper installation. More obvious fire protection devices, such as fire extinguishers and fire alarm bell, are usually installed in convenient locations for their fire protection purposes. If there are problems, they are easy to test and repair or replace. However, although the fire valve has the same value in the delayed fire, it is easy to be ignored because it is hidden in the pipeline and is invisible. Fire safety valves should be given priority when it comes to building maintenance plans and fire prevention.
By setting up obstacles that the fire is unlikely to pass, or at least delay the spread of fire, effective fire-fighting valves can save lives; therefore, fire valve tests should be conducted regularly (also known as impact tests). The normal use of ventilation systems will cause dirt accumulation on fire fighting valves and operating components (see figure 2). These substances must be removed, regularly check the fire valve, ensure that once the fire, according to the original intention of the design work.
Before testing or maintaining the fire damper, it must first be able to locate it. This sounds very basic, but it requires identifying and recording the location of the fire damper installed in each building. This is the work of the responsible person. The clear records of each fire valve should be retained. This is easy to say and difficult to do.
The custom custom multi leaf regulating valve model is all - Dazhou fireproof valve - golden light fire valve is provided by Dezhou Ya Chuang air conditioning equipment Co., Ltd. The custom custom multi leaf regulating valve model is all - Dazhou fireproof valve - golden light fire valve is Dezhou Ya Chuang air conditioning equipment Co., Ltd. Www.tfsb666.com The upgraded pictures and information are for reference only. For more details, please contact the contact telephone on this page or picture. Business contact: Manager Li.