Centrifugal fan blower is highly designed to push air at high pressures. It’s a kind of mechanical device that draws gases from air in ventilation system for buildings. It is one of the most prevalent used fans in big industries and frequently called a blower or squirrel cage fan. It usually has simple construction and is cheaper than axial fans. Centrifugal fan blower uses the kinetic energy of the impellers or rotating blade making more efficient in maximizing the pressure of the air.
Centrifugal fan blowers are normally used in central heating and cooling systems. These fans are suited not just for industrial purposes but also as a means to prevent air pollution. Aside from the long equipment life, they have heavy gauge fan frames and bracing that allows higher rigidity, so you have less field deficiencies. They have a high quality of rust prevention for they are carefully coated and polished. In shipping, to assure correct alignment and proper balance, every centrifugal fan blower undergoes a series of mechanical test runs, passing due to great quality components and steadfast service. It’s composed of grease-lubricated cast iron, self-aligning belt driven models, pillow block bearings sized for a minimum 150,000 hours average life. Its fan shaft is turned, ground, and coated to prevent rust.
Advantages of a High Efficiency Centrifugal Fan Blower
Centrifugal fan blowers minimize intake loss and have low clearance loss between impeller and housing. It has an optimum range of 89% efficiency. The impeller is dynamically stable with no motor excess under operating conditions. In terms of extreme conditions, its process temperature reaches up to 800 degrees Celsius or equivalent to 1.500 degrees Fahrenheit. It is designed to prevent itself from explosions. You can also control its speed through its adjustable inlet. With its limited rating in motor overload, it has standard operational safety.
For very tough air control works, centrifugal fan blower offers high-performance with special designs and structures using a variety of high-performance metals such as stainless steel and titanium. Its usual gases are corrosive or toxic sulfides, halogens, acids, flue and stack gases, cyanides and ammonia. The maximum parameters of this fan consist of temperatures to 1100°F, housing design pressures to 1000 PSIG, operating pressures to 300 PSIG.
What are the Features of a Centrifugal Fan Blower?
What makes it suitable for cooling processes wherein air cannot simply pass is that, it has a high static pressure. With air carried though a duct, the centrifugal fan blower is typically used for spot cooling; its exhaust outlet is reduced which enables it to focus air to a certain direction.
To meet the new condition, an air density correction factor of a centrifugal fan blower must be applied to choose the proper size. Since 200 °F (93 °C) air considers only 80% of 70 °F (21 °C) air, this kind of fan will generate less pressure and require less power. To get the definite pressure required at 200 °F (93 °C), Custom Fans Australia, producer of high quality centrifugal fan blowers would have to multiply the pressure at standard conditions by an air density correction factor of 1.25 (i.e., 1.0/0.8) to get the system to operate correctly. To get the concrete power at 200 °F (93 °C), the designers have to divide the power at average conditions by the air density correction factor.
Centrifugal fan blowers deliver maneuvering air movement by increasing its static pressure, making them peak for spot cooling and for air flow through a duct. This is an efficient way of carrying gases or air and saves your money because it is cheaper than its axial counterparts. Centrifugal fan blower is manufactured with high quality components making it a very efficient machine for increasing air pressure.