Flow-mixing fan with sine type meridional flow channels

A mixed-flow fan and meridian technology, which is applied to the components of the pumping device for elastic fluids, mechanical equipment, machines/engines, etc. The effect of large area, compact structure and high fan efficiency

CN110374900AActive Publication Date: 2019-10-25XI AN JIAOTONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2019-10-25

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Abstract

The invention provides a flow-mixing fan with sine type meridional flow channels. The flow-mixing fan with the sine type meridional flow channels comprises a motor, a machine case, an impeller, guidevanes and a flow collector. The guide vanes are coaxially and fixedly arranged on the inner side of one end of the machine case. The motor is arranged in the center of wheel hubs of the guide vanes. The output shaft of the motor is fixedly connected with the center of the impeller. The flow collector is arranged on the inner side of the other end of the machine case. The flow collector and the impeller are on the same side. The wheel hubs of the guide vanes and wheel hub of the impeller share the same diameter. According to the flow-mixing fan with the sine type meridional flow channels, the scheme is reasonable, and the structure is simple and easy to achieve; full play can be given to advantages of the flow-mixing fan; and in addition, the fan structure is compact, the air volume is large, noise is little, and static pressure efficiency is high.
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Description

technical field

[0001] The invention belongs to the technical field of mixed-flow fans, in particular to a mixed-flow fan with a sinusoidal meridian channel. Background technique

[0002] Mixed flow fans are widely used in mining, textile, metallurgy, power station, aviation, construction and other industries. The mixed flow fan combines the advantages of the axial flow fan and the centrifugal fan, and has a high pressure coefficient and flow coefficient. The air in the mixed-flow fan is both centrifugal and axial. Due to its unique structural characteristics, the interior is full of complex secondary flows.

[0003] The mixed flow fan adopts axial air intake, and the flow direction in the impeller changes to an oblique upward flow. After flowing out of the impeller, it needs to be changed to axially enter the rear guide vane or radially enter the volute.

[0004] The mixed flow fan in the form of a rear volute is similar to the centrifugal fan, and the direction of the ai...

Examples

Embodiment Construction

[0039] The present invention is further described below in conjunction with accompanying drawing:

[0040] see Figure 1 to Figure 4 , a mixed-flow fan with a sinusoidal meridian flow path, including a motor 18, a casing 15, an impeller 16, a guide vane 17 and a collector 14; the inside of one end of the casing 15 is coaxially fixed with a guide vane 17, and the motor 18 It is arranged at the center of the hub of the guide vane 17; the output shaft of the motor 18 is fixedly connected to the center of the impeller 16; the other end of the casing 15 is provided with a current collector 14 on the same side as the impeller 16; the hub of the guide vane 17 Identical to the hub diameter of the impeller 16;

[0041] Several blades are arranged at equal intervals on the impeller 16, and the blades are arranged along the hub line of the impeller 16; the edge of the blade relative to the hub is the casing line, and the casing line and the hub line are two sinusoidal lines, and the cas...