The environmental performance of axial flow fans in the structure of the unit has the disadvantages
The application of axial flow fan with the transport of flammable and explosive gas, the ambient temperature is not more than 60, widely used in general factory, warehouse, office, residential ventilation or strong heating cooling, can also be a long exhaust pipe series installed in order to increase the pressure in the pipeline, unloading motor can do free fan. What are the environmental performance structure of axial fans in the structure of the unit?
Because the air distributor accounts for most of the space, the filtering area of the filter is small, which leads to higher filtering wind speed, higher filtration resistance, longer air distributor pipe, more corner, air resistance. Fan is the main source of the noise of the unit, the speed increase will lead to the increase of the axial flow fan noise, and finally the noise of the unit is large.
The unit is driven by a single phase motor, the speed of the axial fan is increased, the power consumption is increased, the input power required by the motor is increased, and the power consumption is large.
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This structure of the unit due to the number of parts, the unit size and the installation of space constraints, resulting in the internal structure of complex, crowded, processing, assembly process is poor.
in the unit, the fan coil unit is arranged in parallel with the fans, and there is a huge air distributor under the heat exchanger and the fan. Return air from unit central air return way to enter the unit internal, passing the filter through the fan sent to the heat exchanger, air cooling and heat transfer (heat) after the part through the side of the unit to send air sending unit and another part through the air distributor and sent to the unit on the other side of the air duct and then sent out.
