The Roof hood is the principle of using the natural wind speed of nature to drive the turbine of the fan to rotate and indoor and outdoor air convection, accelerating and transforming any parallel air flow into a vertical air flow from bottom to top, so as to improve the indoor ventilation effect. Kind of device
Hood principle
Turbine ventilators use natural wind and thermal convection of air caused by the difference between indoor and outdoor temperature to push the turbine to rotate so as to use centrifugal force and negative pressure to expel the stale indoor air.
Hood energy efficiency
1. Curved blades
The curved blade is the best result of scientific calculations, which can strictly guarantee that rainwater will never invade under working conditions. The exhaust efficiency is high, as long as the temperature difference is not less than 0.2 meters or the temperature difference between indoor and outdoor exceeds 0.5℃, it can operate lightly and effectively.
2. Central axis
The central shaft is provided with fine steps, so that the blades of the turbine will never be deformed under high-speed operation, thereby greatly improving the service life of the ventilator.
3. Variable angle neck tube design
The design of the variable-angle neck tube allows the ventilator to be installed at will under a 0-22.5 degree inclined plane. The installation project is very simple, and the average person can install it in about 30 minutes.
Hood energy efficiency
1. Curved blades
The curved blade is the best result of scientific calculations, which can strictly guarantee that rainwater will never invade under working conditions. The exhaust efficiency is high, as long as the temperature difference is not less than 0.2 meters or the temperature difference between indoor and outdoor exceeds 0.5℃, it can operate lightly and effectively.
2. Central axis
The central shaft is provided with fine steps, so that the blades of the turbine will never be deformed under high-speed operation, thereby greatly improving the service life of the ventilator.
3. Variable angle neck tube design
The design of the variable-angle neck tube allows the ventilator to be installed at will under a 0-22.5 degree inclined plane. The installation project is very simple, and the average person can install it in about 30 minutes.
