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Cross-flow fan blade based on bionics

A cross-flow fan and bionics technology, which is applied to parts of pumping devices for elastic fluids, mechanical equipment, radial flow pumps, etc., can solve the problems of low efficiency and high energy consumption, and achieve the reduction of vortex area, The effect of reducing fan energy consumption and reducing shape resistance

Active Publication Date: 2020-12-08
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the above shortcomings, the present invention provides a cross-flow fan blade based on bionics, which can overcome the problems of high energy consumption and low efficiency in the prior art, and achieve the effect of reducing drag and consumption

Method used

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  • Cross-flow fan blade based on bionics
  • Cross-flow fan blade based on bionics
  • Cross-flow fan blade based on bionics

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Embodiment Construction

[0029] The following description is merely exemplary in nature and not intended to limit the disclosure, application or use. It should be understood that throughout the drawings, corresponding reference numerals indicate like or corresponding parts and features.

[0030] like figure 1 As shown, the cross-flow fan blade based on bionics according to the embodiment of the present invention, the blade 27 includes several blade units 1 arranged axially along the impeller 28, the front edge 2 of the blade unit 1 protrudes, and the rear edge 3 concave, the middle part of the upper surface of the blade unit 1 near the front edge 2 is higher than both sides, the middle part of the side near the trailing edge 3 is lower than both sides, and the middle part of the side near the front edge 2 is higher than the side near the trailing edge 3 side middle part.

[0031] Wherein, the upper surface of a cross-flow fan blade based on bionics of the present invention imitates the surface featu...

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Abstract

The invention discloses a cross-flow fan blade based on bionics. The blade is formed by arranging a plurality of blade units in the axial direction of an impeller, the front edges of the blade units protrude, the rear edges of the blade units are concave inwards, the middle portions of the sides, close to the front edges, of the upper surfaces of the blade units are higher than the two sides, themiddle portions of the sides, close to the rear edges, of the upper surfaces of the blade units are lower than the two sides, and the middle portions of the sides, close to the front edges, of the upper surfaces of the blade units are higher than the middle portions of the sides, close to the rear edges, of the upper surfaces of the blade units. By the adoption of the cross-flow fan blade based onbionics, airflow flowing of the front edge and rear edge of the blade can be improved, an eccentric vortex moves downwards, the efficiency of a cross-flow fan is improved, and energy consumption is reduced.

Description

technical field [0001] The invention belongs to the technical field of air-conditioning blades, and in particular relates to a cross-flow fan blade based on bionics. Background technique [0002] With the development of society, energy conservation and emission reduction have become the consensus of the whole society. Among the energy consumption of buildings, the energy consumption of HVAC systems accounts for about 65% of the whole. The total energy consumption of air conditioners in my country is huge. Usually, in order to apply energy-saving engineering design in the HVAC system, the existing technology has always been inventing and optimizing the blades of the cross-flow fan widely used in the air-conditioning system, so that the fan can achieve the effect of reducing drag and consumption. value and social significance. [0003] However, there are still some defects in this design. For example, the surface of the existing blade is flat and smooth, and the air flow is e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/30F04D29/28F04D17/04F04D29/66
CPCF04D29/30F04D29/283F04D17/04F04D29/667
Inventor 韦红旗胡善苗
Owner SOUTHEAST UNIV
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