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Mixed flow fan vane for air-cooled compressor

A technology of compressors and fan wheels, which is applied in mechanical equipment, machines/engines, liquid variable capacity machines, etc. It can solve the problems of low cooling efficiency, high exhaust temperature, and single spoke structure, so as to improve utilization rate and reliability The effect of improving the performance level and improving the cooling effect

Inactive Publication Date: 2004-07-28
ZHEJIANG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, due to the limitations of the structure of the fan wheel in the prior art, there are problems that the outer diameter of the fan wheel is smaller than the height of the compressor, and the spoke structure is single, and the blades of the axial flow fan are basically used.
Although sufficient cooling air is generated in this way, the cooling air cannot blow to the parts in the compressor that most need to be cooled, such as the cylinder head, air valve, intercooler, etc., and the cooling efficiency is extremely low.
Therefore, the power consumption of the matching compressor is large and the exhaust temperature is high, which makes it difficult to improve the performance and reliability of the whole machine

Method used

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  • Mixed flow fan vane for air-cooled compressor
  • Mixed flow fan vane for air-cooled compressor
  • Mixed flow fan vane for air-cooled compressor

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Embodiment Construction

[0016] The present invention will be further introduced through the embodiments below in conjunction with the accompanying drawings.

[0017] See attached picture, figure 1 , figure 2 , image 3 The structure of the present invention is shown from different angles. Figure 4 It is the decomposition diagram of cooling wind speed, which is the basis of theoretical analysis. Figure 5 , Figure 6 It is an explanatory figure of the design.

[0018] Figure 4 It is the velocity resolution of the cooling wind. U is the total velocity of the cooling wind at a certain point on the windward side of the fan 4, u is the linear velocity around the fan axis, c is the axial partial velocity of the cooling wind, and v is the centrifugal partial velocity of the cooling wind. u 1 , U 2 , U 3 are the projections of U to the xy, yz, and xz planes in three-dimensional coordinates, respectively. αβγ are c and U respectively 1 , u and U 2 , v and U 3 angle.

[0019] To ensure that t...

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Abstract

A mixing whele of fan for the air cooled compressor is composed of hub, spokes used as blades and rim, and is characterized by that its front face is a 3D free curved surface for leading the air to the position of compressor, where cooling is necessary. Its advantage is high cooling effect.

Description

technical field [0001] The invention relates to a matching part of a compressor, in particular to a fan wheel matched with an air-cooled compressor. Background technique [0002] At present, in the prior art field, the function of the fan wheel for the air-cooled compressor is mainly: as the flywheel and the belt drive wheel of the compressor; wind. Its structure is composed of hub, spoke, and rim, etc. The spoke is a fan blade, and its two ends are respectively connected with the hub and the rim, and there are several belt grooves on the periphery of the rim. When in use, the hub is connected to the crankshaft of the compressor, the belt groove on the rim is connected to the driving machine through the belt, the fan wheel is driven by the driving machine to rotate, and the cooling air generated by the spokes is blown to the compressor to cool the main parts of the compressor . [0003] However, due to the limitations of the structure of the fan ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B9/04F04B39/06
Inventor 翟昕崔峰俞小莉沈瑜铭
Owner ZHEJIANG UNIV