Scale-like combination blade

Abstract

The invention relates to scale combined blades. In the technical field of wind energy exploitation, theoretical knowledge on wind energy exploitation of people is always limited to interface wind energy collection, and a single-stage single-blade windmill with a single horizontal shaft is just the product of theoretical and technical application of interface wind energy collection. Blades of the single-stage single-blade windmill with a single horizontal shaft are arranged on a lateral plane from top to bottom and from right to left, only the cross sections of the windmill are provided with interface devices for collecting wind energy, and the windmill does not have the function of space wind energy collection. The scale combined blades are characterized in that blades of the single-stage single-blade windmill with a single horizontal shaft are arranged like scales in a shape of rhombus. Planar arrangement of blades in a lateral direction is reserved to guarantee conditions for interface wind energy collection, and space for wind energy collection is expanded in a vertical direction. The scale combined blades meet all the technical requirements for space and interface wind energy collection. Therefore, the essential difference between a single blade and scale combined blades are that the single blade belongs to the technical field of interface wind collection, but the scale combined blades belong to the technical field of space and interface wind energy collection.

Description

technical field [0001] The scale-combined blade of the present invention is a fan blade for effectively developing wind energy in the field of wind energy development, and is mainly used for updating blades of horizontal-axis windmills. Background technique [0002] In the technical field of wind energy development, from the traditional one-axis single-stage single-blade windmill that is popular in the industry today, the wind energy harvested is the wind energy of the one-dimensional interface of the space it occupies, and the wind energy in the occupied space is lost. A large amount of wind energy has not been harvested. This windmill windmill with one horizontal axis and one axis is the original low-end wind collection method, that is, the "interface" wind collection method or plane wind collection method. I have improved it before and obtained a patent. The patent number is ZL2008201110102. The horizontal-axis one-axis multi-stage windmill has changed the technical limit...

AI Technical Summary

Problems solved by technology

Although the horizontal-axis one-axis multi-stage windmill solves the basic technical problems of "space wind collecting" from the multi-level structure, it does not solve the technical problems of "space wind collecting" from the technical structure of the blades, and the theory of "space-interface" wind collecting And the technology is still not fully reflected in the overall technical structure of the windmill, and it is still necessary to improve the blades for wind collection, and improve the single blade of "interface" wind collection into the scale combination blades of space wind collection

[0003] The blades used in traditional horizontal axis fans are all independent single blades, which only have the function of plane wind collection and cannot effectively develop space wind energy. Therefore, there are serious defects in the efficiency of wind energy development and in improving the wind collection power of fans.

The original single blade, one is because the single blade cannot be designed to be very wide in technical application, and the power can only be increased by lengthening the blade

It is very difficult to manufacture, transport and install long blades, and the height of the tower needs to be increased, which increases the investment cost and produces little benefit

The second is that the single blade is installed independently and cannot be connected to each other. The blade is long, which makes the mechanical strength of the blade deteriorate and is easily broken by the wind.

Third, because the single blade is installed independently, the blades cannot be connected to each other, and the mechanical strength of the blade can only be strengthened from the root of the blade to improve the wind resistance. As a result, technical contradictions are caused, and the wind collection performance of the blade root is deteriorated.

Fourth, a single blade can only lengthen the blade horizontally to expand the wind collection area, but cannot expand the wind collection space vertically. Therefore, on the basis of the single blade technology, it is very difficult to realize the real high-power development of a single machine, or even impossible

Fifth, the single-blade is a low-capacity planar wind collection technology, which cannot realize the theoretical and technical standards of space wind collection, wastes a lot of space wind energy resources, and cannot effectively improve the wind collection power of the fan, which is its essential technical defect in production and application

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