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Roof powerless fan

name:Roof powerless fan

brand:tianhui

price:据实

specifications:商谈

time:2017-2-8 16:44:46


  Roof powerless fan


Key words: roof powerless fan
No power fan on the roof
1. Non-power fan is the use of natural wind and indoor and outdoor temperature difference caused by the air thermal convection, to promote the turbine rotation, so as to use centrifugal force and negative pressure effect to discharge indoor stale hot air.
2. The arc-shaped blade is the best result of scientific calculation, which can strictly ensure that no rain intrudes into the working condition. And the exhaust efficiency is high, as long as the difference between indoor and outdoor temperatures is not less than 0.2 meters or more than 0.5 degrees Celsius, it can rotate itself lightly and effectively, and it is silent and noiseless in operation.
3. The central shaft has fine steps, so that the blades of the turbine will never be deformed under high-speed operation, thus greatly improving the service life of the powerless fan.
4. The design of variable-angle neck tube can make the installation of the powerless fan at will under the inclined plane of 0-22.5 degrees, and the installation is simple and clear.
5. Strict spherical structure, permanent lubrication of upper and lower ball bearings, long service life, no need to repair, and no need to replace parts. PEER, UBC and NSK high precision fully enclosed bearing systems in the United States provide absolute quality assurance.
6. Precision operation device: High precision fully enclosed UBC bearing system, heat-resistant synthetic grease as the best lubricant in the bearing, can permanent self-lubrication, without maintenance, even if the wind speed is less than 2 kilometers of breeze, can also self-operate.
7. Green and environmentally friendly ventilation equipment: using the principle of natural wind drive, zero-cost operation of electricity, objective energy efficiency, economic installation costs, low maintenance costs.
8. Unique variable-angle pipe diameter is suitable for installation of profiled slab roof and concrete roof of light steel structure in various industrial buildings. Moreover, it does not need brackets and is easy to install.
Principle: Non-power ventilator is the use of natural wind and indoor and outdoor temperature difference caused by air and heat convection, to promote the turbine rotation, so as to use centrifugal force and negative pressure effect to discharge indoor stale hot air.
Arc blade: It is the result of scientific calculation. It can strictly guarantee that rainwater will never invade under working condition. High exhaust efficiency, as long as the difference between indoor and outdoor temperatures is not less than 0.2 meters or more than 0.5 degrees Celsius, it can be lightweight and effective self-rotation, running silently and noiselessly.
Environmental protection: No electricity, continuous operation, high efficiency and energy saving, no noise, no spark, explosion-proof.
(2) Windbreak and rainproof characteristics: arc blade, each blade and blade has a gap between each other when rotating, blade complement each other to fill this gap, a large amount of rain water throws out along the circular node, a small amount of rain water runs along the blade to the roof, will not flow into the turbine, while the rotating turbine makes the air flow out of the blade gap, blocking rainwater from entering.
(3) Operating device: high-tech ball bearing, which is completely closed and always self-lubricating, enables it to rotate under the breeze of less than 3.2Km/h.
(4) Dust-proof: Turbine exhaust fan is 24 hours non-stop rotation, dust is not easy to adhere to, even if it needs cleaning is also very convenient.
(5) Maintenance fee: Rotary exhaust fan does not need to be repaired, nor does it need to replace parts, providing absolute good quality, so the choice of motor-free turbine fan is the best guarantee for investors.
_Lightweight: Turbine exhaust installed on the roof and connected with the base, the total weight is about 15Kg/seat, which is quite lightweight. When designing the load of steel structure, it is not necessary to consider.
Lighting: There is a gap between the blade and the light will enter the room, which can increase the illumination by 5-10% to save electricity.
_Life: General service life is more than 15 years.
_Wide scope of application: Only 0.2m/s of wind speed or 0.5 C difference between indoor and outdoor temperature can be continuously rotated, not only for flat roofs, but also for inclined roofs not exceeding 31.5 degrees, the turbine axis can be adjusted to a vertical state.
II. Scope of application
(1) To produce air convection and exhaust heat.
Reduce indoor temperature and increase indoor fresh air.
Reduce air conditioning load and increase refrigeration effect.
④ draw out moisture, mildew and steam from the roof to keep the roof dry.
(5) Replacing the heavy-duty electric exhaust fan, it can reduce the cost of bracket, save electricity and reduce noise.
It is suitable for ventilation, ventilation and ventilation of factories, warehouses, rooftops, villas, patios, flower houses, livestock breeding, mine tunnels and all roofs.


Note: 1. The exhaust air volume in the table is calculated as 3.4m/s (third-class air) of the ventilator, and the temperature difference between indoor and outdoor is 5 C. If the average air velocity of the ventilator increases, the exhaust air volume will increase with the same proportion. If the temperature difference between indoor and outdoor is more than 5 C, the installation quantity can be increased appropriately.
2. Building height below 6 meters is recommended to use 14 "or 20", and above 6 meters is recommended to use 25 ", 27" or 30 ".


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