Early products can only be exhausted unidirectionally, so it is also called exhaust (wind) fan.A venter fan replacement fan appeared in 1964
In the 1980s, plastic began to use it in large quantities, that is, todays pipe fans, shutters, and window sneakers.
Around 2000, in developed regions such as North America and Western Europe, the use of air conditioners combined the characteristics of the fan and invented the pressure -free fan, that is, todays split pipe fans, DC ventilations, and circular blossoms.
The working principle of the air -changing fan:
The ventilation method of the air -changing fan has three types: excreted, inhaled, and use.Enter the air from the natural air intake. The dirty air is discharged through the air -changing fan. The inhalation type is inhaled into the fresh air through the replacement fan, and the dirty air is discharged from the natural exhaust port.A type of air -regulating electrical appliances that drive the airflow of wind leaves to drive air flow to the airflow of indoor and outdoor air.Also known as a fan.The purpose of ventilation is to remove the dirty air in the room and adjust the temperature, humidity and sensory effect.The air -changing fan is widely used in family and public places.
Different places require different air conversion and air conversion times.The amount of fresh air required for one person or per square meter is called the required gas replacement.The number of fresh air replaced within 1 hour is called the number of air changes.
The above is the development history and working principle of changing air fans. If you want to learn more about information, please pay more attention to us- ——