进口离心鼓风机(进口)

进口离心鼓风机(进口)

进口离心鼓风机Product Description:

The inlet guide vane adjusting mechanism includes: inner volute, outer volute, cover cap, front guide vane assembly and rear guide vane assembly. During operation, the actuator drives one of the rear guide vane rotating shafts through the coupling. The rotation of the rear guide vane rotating shaft drives the rotation of the drive ring, thus driving the rotation of all guide vane rotating shafts, so as to achieve the purpose of adjusting the rear guide vane angle. It breaks through the traditional single blade guide vane, adopts fixed front guide vane and rotates rear guide vane to realize cascade guide vane regulation, weakens the flow separation of air flow at the guide vane, reduces the aerodynamic loss caused by guide vane, improves the efficiency of the whole machine and reduces energy consumption while ensuring that the flow direction and flow of air flow can be adjusted.

进口离心鼓风机characteristic:

The high-speed centrifugal blower adjusts the flow direction and flow rate of the air flow by adjusting the angle of the inlet guide vane. When the air flow flows through the inlet guide vane, flow separation will occur at the pressure surface, suction surface and blade trailing edge of the guide vane, resulting in aerodynamic loss of the fluid passing through the guide vane, reducing the aerodynamic performance of the whole machine. In addition, the excessive separation of the blade surface will bring noise pollution, so the flow separation at the inlet guide vane will be weakened, It is necessary to improve the efficiency of centrifugal blower. The existing method is to change the plate guide vane into the airfoil guide vane, but the airfoil guide vane has not improved much aerodynamic performance, especially for the centrifugal blower with S-shaped inlet passage, its reduction of aerodynamic loss at the guide vane is not obvious.

Principle:

The rear guide vane assembly comprises a centring and rotating drive ring which is sleeved on the outer peripheral surface of the inner volute, the outer peripheral surface of the drive ring is evenly distributed with the same number of drive ring pins as the front guide vane along the circumferential direction, and the drive ring pins are embedded in the U-shaped window of the rocker arm of the drive ring to form a sliding pair; The circumferential wall of the inner spiral case is evenly provided with through holes with the same number as the front guide vane along the circumferential direction. The through holes are connected with the guide vane shaft sleeve of the rear section. The rotating shaft of the guide vane of the rear section extends into the guide vane shaft sleeve of the rear section and is connected to the top of the front end of the guide vane of the rear section. The other end of the rotating shaft of the guide vane of the rear section is connected to the other end of the swing arm of the drive ring and fastened with screws; The top of one of the guide vane rotating shafts at the rear section is fixedly connected to the coupling, which is connected to the output end of the actuator.

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