The HTF series fire high-temperature exhaust fans are suitable for high-rise buildings, underground structures, tunnels, and drying rooms for ventilation, air exchange, or high-temperature exhaust. They can operate continuously for over 30 minutes at temperatures up to 280°C and run for 20 hours at a time without damage at a medium temperature of 100°C.
A smoke exhaust fan is a mechanical device that swiftly removes odors, high temperatures, and greasy gases produced during the food processing in a kitchen. Its features include excellent high-temperature resistance and high efficiency. Various cooking equipment such as frying, stir-frying, steaming, boiling, frying, and roasting in the kitchen continuously generate a variety of high-temperature, humid, and polluted gases. Once accumulated to a certain degree, the kitchen becomes unsuitable for continued operation. Therefore, it is necessary to use a fan to expel the polluted gases through the exhaust ducts. Today, we will discuss the key points for selecting smoke exhaust fans, hoping it will be helpful to your work.
The main control parameters for selecting exhaust fans are operating temperature, air volume, total pressure, efficiency, noise, motor power, speed, and shaft power. Exhaust fans should be able to operate continuously for an extended period under conditions where the medium temperature does not exceed 85°C. The exhaust ventilation fans should ensure: they can operate continuously for 30 minutes when the medium temperature reaches 280°C, and they can continue to operate normally once the medium temperature cools down to ambient temperature. At the rated speed, within the working area, the actual pressure curve of the fan should meet the following specifications as given in the instructions; for centrifugal exhaust ventilation fans, the pressure value deviation at the specified flow rate should be ±5. The A-weighted noise level limit of the exhaust ventilation fans at the operating points specified in the instructions should comply with the JB/T8690-1998 standard.
