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Optimized production method of high-efficiency low-noise axial flow fan

A technology of axial flow fan and production method, which is applied in the direction of casting molding equipment, casting molds, cores, etc., can solve the problems of difficult design, demanding noise requirements, and high research and development costs, so as to reduce energy consumption, improve production efficiency, The effect of increasing the cooling rate

Active Publication Date: 2020-03-24
ZHEJIANG SHANGFENG SPECIAL BLOWER IND CO LTD
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  • Claims
  • Application Information

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Problems solved by technology

[0002] With the rapid development of my country's economy and industry, the requirements for the efficiency of fans are getting higher and higher, and the requirements for noise are also becoming more and more demanding. The method of improving efficiency and reducing noise of existing axial flow fans is to design more efficient and lower noise. The airfoil and flow channel structure of the company, the design is difficult, the research and development cost is high, and the newly developed airfoil and structure need to be tested for a long time to verify the safety performance

Method used

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  • Optimized production method of high-efficiency low-noise axial flow fan
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  • Optimized production method of high-efficiency low-noise axial flow fan

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Embodiment Construction

[0035] An optimized production method of a high-efficiency and low-noise axial flow fan, the axial flow fan includes a housing, an impeller, a motor and a ring, the ring is sleeved on the impeller blades, and the high-efficiency and low-noise axial flow The optimized production method of the fan includes: a. Parts production: processing the shell and blades separately, and the blades are assembled into an impeller; b. Ring processing: using a casting machine to directly process the ring to obtain a ring of the required specification; c. Parts assembly: Put the motor into the casing, then put the impeller on the output shaft of the motor, and finally put the ring on the impeller blades to complete the processing of the axial flow fan.

[0036] Adding a circular ring behind the blade of the fan impeller along the airflow direction reduces the loss of the circular surface caused by air friction and eddy current at the tip of the fan blade. Through a large number of CFD numerical s...

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Abstract

The invention discloses an optimized production method of a high-efficiency low-noise axial flow fan; the axial flow fan comprises a shell, an impeller, a motor and circular rings; blades of the impeller are sleeved with the circular ring, and the optimized production method of the high-efficiency low-noise axial flow fan comprises the following steps: a, parts production: specifically, respectively machining the shell and the blades, and assembling the blades to form the impeller; b, processing of the circular rings, namely directly processing the circular rings by using a casting machine toobtain the circular rings with the required specification; c, assembling of parts, namely mounting the motor into the shell, sleeving the impeller on an output shaft of the motor, and finally sleevingthe circular rings on blades of the impeller to finish machining of the axial flow fan. By means of the mode that the blades are sleeved with the circular rings, the total pressure efficiency of theaxial flow fan can be improved on the basis that an existing fan flow channel structure and an existing blade profile are not changed, aerodynamic noise is reduced, and the production method is economical, simple and worthy of popularization.

Description

technical field [0001] The invention belongs to the technical field of fan processing, and in particular relates to an optimized production method of a high-efficiency and low-noise axial flow fan. Background technique [0002] With the rapid development of my country's economy and industry, the requirements for the efficiency of fans are getting higher and higher, and the requirements for noise are also becoming more and more demanding. The method of improving efficiency and reducing noise of existing axial flow fans is to design more efficient and lower noise. The unique airfoil and flow channel structure are difficult to design, and the research and development costs are high, and the newly developed airfoil and structure need to be tested for a long time to verify the safety performance. There is an urgent need to increase the efficiency of the axial flow fan and reduce the aerodynamic noise by adding a simple component without changing the structure and blade shape of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/24B22D27/04
CPCB22C9/24B22D27/04
Inventor 胡伟锋张强升高一帆石红陈一伟
Owner ZHEJIANG SHANGFENG SPECIAL BLOWER IND CO LTD
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