Single -speed fire smoke is a common and important device to control the flue gas and harmful gases generated during the internal fire of the building.It is mainly used to help eliminate smoke and keep the air smooth when the fire occurs to provide safe evacuation channels and reduce the risk of fire spread.It uses a single fixed wind speed to run, which has the characteristics of high reliability and simple structure. It is widely used in various buildings such as commercial buildings, residential buildings and public places.
The working principle of a single -speed fire smoke exhaust fan is based on a fan that the smoke is drawn from the inside of the building through a fans.When the fire occurred, the smoke exhaust system was started, and the smoke exhaust fan started to run.The negative pressure generated by the fan allows the smoke to flow from the fire area to the exhaust port, and then discharge outdoors through the smoke exhaust pipes.At the same time, fresh air will enter the building through other ventilation systems to maintain normal airflow.
The structure of a single -speed fire smoke exhaust fan is usually composed of the following main components:
1. Fan shell: The fan shell is the external structure of the fan, usually made of metal material (such as steel plate).It has the characteristics of high strength and strong anticorrosive ability to protect internal fan components.
2. Fan impeller: Fan impeller is the core component of fire foam fan, which is responsible for generating airflow and exhausting smoke.The impeller is usually made of metal material, which has a reasonable leaves shape and design to provide efficient air flow conveying capabilities.
3. Electric: Electric motor is the power source of driving fan leaf rotation.It is usually installed inside the fan shell and connects to the impeller through the axis.The power and speed of the motor are selected according to specific smoke discharge needs to ensure that the fan can provide sufficient air volume and pressure.
4. Control system: The control system is used to control and monitor the operating status of the fan.It usually includes switches, buttons, control panels and sensors.The control system can realize functions such as start -stop control, air volume adjustment, and fault alarm to ensure the normal operation and safety performance of the fan.
5. Entry and exit: The entry and exit air outlet is an interface that the fan is evacuated by the building or the tobacco pipeline.They usually have the appropriate size and shape to connect to other systems or equipment, and ensure that the smoke is discharged smoothly or fresh air enters.
6. Auxiliary equipment: In addition to the above -mentioned main components, single -speed fire smoke exhaust fan may also be equipped with some auxiliary equipment, such as fire valves, air ducts, mufflers, etc. to improve the safety and performance of the smoke exhaust system.
The above is part of the single -speed fire smoke exhaust fan