During the installation and use of fire, fire discharge of fire discharge needs to follow a series of standardized requirements to ensure that its normal operation and effectively play a smoke drainage role.Here are some main specification requirements:
Installation position and space:
· Fire fire exhaust fan should be set in a dedicated fan room or on the outdoor roof.The fan room should be separated from the wall with a fire resistance of not less than 2.0H and the 1.5h floor and the fire door to separate from other parts.
· When the conditions are limited, it can be set in a dedicated space. The surrounding surroundings of the space should be used to use non -combustion body with a refractory limit of not less than 1.0h. There should be space of more than 600mm on both sides of the fan.
· When the machine room must be used with other fan, there should be an automatic water spray fire extinguishing system in the machine room, and a fan and pipeline for pressing the air supply of the aircraft should not be provided.At the same time, there must be no soft reception and a smoke exhaust fan and a tobacco exhaust pipe.
Check before installation:
· Before installation, you should focus on checking whether the impeller is touched, and a comprehensive inspection of each component should be checked to ensure that the wind leaves are not damaged or deformed due to transportation.If there is the above situation, it is necessary to be installed before it is repaired.
Precautions during the installation process:
· The air duct connecting to the import and export of fire exhaust fan should have a separate support, and the pipeline weight should be added to the components of the fan.
· When installing, pay attention to the horizontal position of the fan. The connection of the combination of the fan and the foundation should be adjusted and shall not be forcibly connected.
Structure requirements:
The axial flow fire exhaust fan should set up motor insulation protection and air cooling system in the fan (the ventilator of the H -class insulation -level motor may not be provided with a compulsory air cooling system).The insulation level of the motor should not be lower than the F -level.
· The motor power of the axial flow fire exhaust aircraft motor motors should be tolerated by the thermal insulation sleeve or the high temperature resistance cable.
Equipment requirements:
· The radial gap value of the axial flow fire smoke and the impeller should be uniform and meet the specific gap value requirements.
· Corporation Fire Fighting Tobacco Vowor Inlet Inlet Inlet and Leaf Wheel Covers radial unilateral gap value also needs to meet specific requirements.
Performance requirements:
· Fire fire exhaust fan should be able to run normally for a long time under the condition that the medium temperature is not higher than 85 ° C. When the temperature of the transmitting medium can work continuously for 30 minutes when the temperature of 280 ° C, it can still run normally when the medium temperature cools to the ambient temperature.
· Fire fire exhaust ventilator The than the A -Sound noise limit value of the A sound level in the description of the fire discharge ventilator shall meet the regulations, and the balance level is not less than G5.6.
Weeng volume standard:
· The air volume of fire fire exhaust fan is related to the environmental conditions of the setting. The corresponding air volume standards should be met. For example, the environment is a single area or a net height of more than 6m and no tobacco discharge areas.
In addition, the fire smoke exhaust fan is connected to the alarm host. It is usually closed. When the alarm host induces a fire signal, the fire fire exhaust fan will automatically turn on to smoke.
Please note that these are just some basic requirements. The specific installation and use should also be carried out in accordance with the relevant construction specifications, fire regulations and equipment manuals.At the same time, regular maintenance and inspection are also the key to ensuring the normal operation of fire smoke fan.
The above is the specification requirements of fire fire exhaust fan