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What are the characteristics of the working principle of the blower

2022-02-24 16:24:48
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        With the continuous development of industrial technology, the use of blowers is becoming more and more frequent. As a commonly used fan in factories, centrifugal blowers have always worked well. The blower has a high-speed rotating rotor, the blades on the rotor drive the air to move at a high speed, and the centrifugal force makes the air flow along the involute to the fan outlet under the condition of the involute shape, and the high-speed airflow has a high wind pressure.

        When the fan runs at a constant speed, the operating point of the fan will move along the pressure-flow characteristic curve, and the operating point of the fan will operate, and its function depends not only on itself, but also on the characteristics of the system. When the resistance of the pipe network increases, the function curve will become steeper lines. The basic principle of fan adjustment is to obtain the required working conditions by changing the function curve of the fan itself or the characteristic curve of the external pipe network.



        Reduced speed at additional speed, with a factor of 1/2, 1/4, 1/8 of the original flow rate corresponding to the operating point, the pressure, and the power of each shaft are reduced by a factor of 1/2, 1/4, 1/8, this operating mode can greatly save energy s reason. According to the characteristics of frequency conversion conditioning, the aeration tank always maintains a normal liquid level of 5m during the sewage treatment process, requiring the blower to perform extensive flow conditioning under the condition of stable outlet pressure.



        The inlet guide vane conditioning equipment, that is, a set of blades installed near the suction port of the blower with adjustable angle inlet guide vanes, its function is to make the air flow and twist the speed before entering the impeller rotation. The guide vane can rotate around its own axis, and each angle of the vane rotation means changing the direction of the airflow entering the fan impeller.


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