Box-type centrifugal fan
A centrifugal fan and box-type technology, which is applied in the direction of liquid fuel engines, mechanical equipment, non-variable pumps, etc., can solve the problems that the overall structure of the fan cannot satisfy customers, cannot adapt to large air volume, and low static pressure, etc., to achieve reduction Effects of small impact, increased air volume, and reduced noise
Inactive Publication Date: 2013-05-08
张家港安锐格机电设备有限公司
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Problems solved by technology
[0002] At present, the fans used in various industries in China are mainly axial flow fans. Their disadvantages are large noise, small air volume, and low static pressure. They cannot adapt to large air volume and high-pressure applications. The overall structure of the fan cannot meet customer requirements.
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Embodiment 1
[0022] Embodiment one: see attached figure 1 And attached figure 2 shown.
[0023] A box 2 type centrifugal fan includes a motor 1 , a box 2 , and an impeller 3 arranged in the box 2 and connected to the output shaft of the motor 1 . The box body 2 is a cube, which has a first surface, an air inlet 4 is arranged on the first surface, and an air outlet 5 is arranged on any one or more of the four surfaces perpendicular to the first surface. The motor 1 is arranged outside the box body 2, and its output shaft extends into the box body 2. A bracket 6 is fixedly arranged outside the box body 2, and the motor 1 is arranged on the bracket 6.
[0024] The air inlet 4 is provided with a current collector 7, which includes the outer end, the middle end, and the inner end in sequence from the outside of the box body 2 to the inside of the box body 2. The cross-sectional area of the outer end is set as S1, and the cross-sectional area of the middle end is S2. The cross-sectional ...
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The invention relates to a box-type centrifugal fan which comprises a motor and an impellor which is connected to an output shaft of the motor; the impellor comprises a rear plate, a guide flow plate and a plurality of blades which are fixedly arranged between the rear plate and the guide flow plate; the blades are arc blades, and comprise rear parts which are close to the center of rotation of the impellor and front parts which are close to the wheel flange of the impellor; the blades extend from the rear parts to the front parts, and the radian of the arc blades increases gradually; the impellor is arranged in a box body which is provided with an air inlet and an air outlet; the air inlet is corresponding to the surface of the impellor; and the air outlet is close to the edge of the impellor. Because the arc blades are adopted for the centrifugal fan provided by the invention, the pressure and air inlet flow are increased, the impact to the blades by the air flow is reduced greatly,the air flow field is more uniform and smooth, thus the noise is reduced, and the air quantity is increased.
Description
technical field [0001] The invention relates to a centrifugal fan, in particular to a centrifugal fan with a box body. Background technique [0002] At present, the fans used in various industries in China are mainly axial flow fans. Their disadvantages are large noise, small air volume, and low static pressure. They cannot adapt to large air volume and high-pressure applications. The overall structure of the fan cannot meet customer requirements. Contents of the invention [0003] The object of the present invention is to provide a box-type centrifugal fan with large air volume, low noise and high static pressure. [0004] In order to achieve the above object, the technical scheme adopted in the present invention is: [0005] A box-type centrifugal fan, including a motor, an impeller connected to the output shaft of the motor, the impeller includes a rear plate, a deflector, fixedly arranged on the rear plate and the deflector A plurality of blades between the plates, t...
Claims
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IPC IPC(8): F04D29/30F04D29/44
Inventor 钱建刚
Owner 张家港安锐格机电设备有限公司