阅读说明：本技术 一种浮式螺旋型垂直轴风机上部结构实验模型 (Floating type spiral vertical axis fan superstructure experimental model ) 是由 刘利琴 郭颖 张立昌 谢芃 邓万如 于 2021-09-03 设计创作，主要内容包括：本发明公开了一种浮式螺旋型垂直轴风机上部结构实验模型,包括立管,所述立管外部围绕有垂直轴螺旋型风机叶片,立管由顶端向下间隔的分层设置有水平的撑杆,每层撑杆的数量与垂直轴螺旋型风机叶片的数量相同且每层撑杆分别朝向各垂直轴螺旋型风机叶片的等高位置；所述垂直轴螺旋型风机叶片通过连接件与撑杆相固定。本发明旨在提供一种结构稳定、质量达标、外形仿真的浮式螺旋型垂直轴风机上部结构实验模型。(The invention discloses an experimental model of an upper structure of a floating spiral vertical axis fan, which comprises a vertical pipe, wherein vertical axis spiral fan blades are surrounded outside the vertical pipe, horizontal support rods are arranged on the vertical pipe in a layered manner at intervals from the top end downwards, the number of the support rods on each layer is the same as that of the vertical axis spiral fan blades, and the support rods on each layer face to the equal-height positions of the vertical axis spiral fan blades respectively; the vertical axis helical fan blade is fixed with the stay bar through a connecting piece. The invention aims to provide an experimental model of the upper structure of a floating spiral vertical axis fan, which has the advantages of stable structure, standard quality and simulated appearance.)

1. The utility model provides a floating spiral type vertical axis fan superstructure experimental model, includes riser (1), its characterized in that: vertical axis helical fan blades (3) are arranged around the outside of the vertical pipe (1), horizontal support rods (2) are arranged in the vertical pipe (1) in a layered mode at intervals from the top end downwards, the number of the support rods (2) in each layer is the same as that of the vertical axis helical fan blades (3), and the support rods (2) in each layer face the equal-height positions of the vertical axis helical fan blades (3) respectively; the vertical axis spiral fan blade (3) is fixed with the stay bar (2) through a connecting piece (5).

2. The experimental model of the upper structure of the floating spiral vertical axis fan of claim 1, wherein: and all connecting pieces (5) positioned below the top layer stay bar (2) are connected with the top end of the vertical pipe (1) through steel wire ropes (6).

3. The experimental model of the upper structure of the floating spiral vertical axis fan of claim 1, wherein: an L-shaped fixing block (4) is arranged between the support rod (2) and the vertical pipe (1), the vertical part of the fixing block (4) is fixed with the vertical pipe (1) through a screw (7), and the horizontal part of the fixing block (4) is fixed with the end part of the support rod (2) through the screw (7).

4. The experimental model of the upper structure of the floating spiral vertical axis fan of claim 1, wherein: the connecting piece (5) is L-shaped, the horizontal part of the connecting piece (5) is fixed with the end part of the stay bar (2) through a screw (7), and the vertical part of the connecting piece (5) is fixed with the vertical axis spiral fan blade (3) in an adhesive mode.

5. The experimental model of the upper structure of the floating spiral vertical axis fan of claim 1, wherein: the vertical axis helical fan comprises three vertical axis helical fan blades (3), two layers of support rods (2) and three support rods (2) in each layer.

6. The experimental model of the upper structure of the floating spiral vertical axis fan of claim 5, wherein: the stay bar (2) on the upper layer is connected to the upper quarter of the vertical axis helical fan blade (3), and the stay bar (2) on the lower layer is located at the lower quarter of the vertical axis helical fan blade (3).

7. The experimental model of the upper structure of the floating spiral vertical axis fan of claim 1, wherein: the support rod (2) is formed by wrapping Baer sand wood with carbon cloth brush epoxy resin.

8. The experimental model of the upper structure of the floating spiral vertical axis fan of claim 1, wherein: the vertical axis spiral fan blade (3) is formed by alternately laying carbon cloth and EL2 epoxy resin.

9. The experimental model of the upper structure of the floating spiral vertical axis fan of claim 1, wherein: the stand pipe (1) is composed of an aluminum pipe.

Technical Field

The invention relates to the technical field of model experiments, in particular to an experimental model of an upper structure of a floating spiral vertical axis fan.

Background

In recent years, under the background of national policy support and energy supply tension, the offshore floating wind power in China is rapidly developed, so that the research on the relevant performance of the offshore floating wind power is more intensive, and the offshore floating fan scale model pool experiment is considered to be an accurate, reliable, economical and feasible method for researching the dynamics of the offshore floating wind power, verifying the concept of a novel floating platform, verifying computer software simulation and numerical calculation tools.

The offshore floating vertical axis wind turbine is an organic combination of an offshore floating platform and a land fixed vertical axis wind turbine, the wind area of an upper structure of the offshore floating vertical axis wind turbine is large, the safety performance of the offshore floating vertical axis wind turbine is seriously influenced, in order to obtain a more accurate and reliable model experiment result, an experimental model of the upper structure of the floating spiral vertical axis wind turbine with stable structure, standard quality and simulated appearance is manufactured, and the offshore floating vertical axis wind turbine scale reduction ratio model experiment is an important technical problem to be solved urgently.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provides an experimental model of the upper structure of the floating spiral vertical axis fan, which has the advantages of stable structure, standard quality and simulated appearance.

In order to achieve the purpose, the invention is realized by the following technical scheme:

an experimental model of an upper structure of a floating spiral vertical axis fan comprises a vertical pipe, vertical axis spiral fan blades are arranged around the outside of the vertical pipe, horizontal support rods are arranged on the vertical pipe in a layered mode at intervals from the top end to the bottom, the number of the support rods on each layer is the same as that of the vertical axis spiral fan blades, and the support rods on each layer face to the equal-height positions of the vertical axis spiral fan blades respectively; the vertical axis helical fan blade is fixed with the stay bar through a connecting piece.

Furthermore, all connecting pieces below the top layer stay bar are connected with the top end of the vertical pipe through steel wire ropes.

Furthermore, an L-shaped fixing block is arranged between the support rod and the vertical pipe, the vertical part of the fixing block is fixed with the vertical pipe through a screw, and the horizontal part of the fixing block is fixed with the end part of the support rod through a screw.

Furthermore, the connecting piece is L-shaped, the horizontal part of the connecting piece is fixed with the end part of the support rod through a screw, and the vertical part of the connecting piece is fixed with the vertical axis spiral fan blade in an adhesive mode.

Furthermore, the number of the vertical axis spiral fan blades is three, the number of the support rods is two, and the number of the support rods on each layer is three.

Furthermore, the stay bar positioned on the upper layer is connected to the upper quarter of the vertical axis helical fan blade, and the stay bar positioned on the lower layer is positioned at the lower quarter of the vertical axis helical fan blade.

Furthermore, the support rod is formed by wrapping Barsha wood with carbon cloth brush epoxy resin.

Further, the vertical axis helical fan blade is formed by alternately laying carbon cloth and EL2 epoxy resin.

Further, the stand pipe is formed of an aluminum pipe.

Compared with the prior art, the invention has the following beneficial effects:

according to the invention, the vertical pipe is formed by filling the aluminum pipe, the brace rod is formed by wrapping balsa wood with the carbon cloth and the epoxy resin, and the vertical axis helical fan blade is paved by the carbon cloth and the epoxy resin, so that the weight of the upper structure experiment model of the floating helical vertical axis fan is effectively controlled while the strength is ensured. The fixing block and the connecting piece are adopted to form the connection among the vertical pipe, the stay bar and the vertical axis spiral fan blade in sequence, the joint of the vertical pipe and the stay bar and the joint of the stay bar and the vertical axis spiral fan blade are effectively improved, meanwhile, a steel wire rope is arranged between the top end of the vertical pipe and the connecting piece below the top layer for traction, and the structural strength of the upper structure experiment model of the floating spiral vertical axis fan is guaranteed.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a fixing block according to the present invention;

fig. 3 is a schematic structural view of the connector of the present invention.

Reference numerals:

the device comprises a vertical pipe 1, a support rod 2, a vertical shaft spiral fan blade 3, a fixing block 4, a connecting piece 5, a steel wire rope 6 and a screw 7.

Detailed Description

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in fig. 1 to 3, an experimental model of an upper structure of a floating spiral vertical axis fan comprises a vertical pipe 1, vertical axis spiral fan blades 3 are arranged around the outside of the vertical pipe 1, horizontal support rods 2 are arranged in the vertical pipe 1 in a layered manner at intervals from the top end downwards, the number of the support rods 2 in each layer is the same as that of the vertical axis spiral fan blades 3, and the support rods 2 in each layer face the equal-height positions of the vertical axis spiral fan blades 3 respectively; the vertical axis helical fan blade 3 is fixed with the stay bar 2 through a connecting piece 5; the number of the vertical axis helical fan blades 3 is three, the number of the support rods 2 is two, and three support rods 2 are arranged on each layer; the support rod 2 is formed by wrapping Barsha wood with carbon cloth brush epoxy resin; the vertical axis spiral fan blade 3 is formed by alternately laying carbon cloth and EL2 epoxy resin; the riser 1 is formed from an aluminum tube.

Wherein, each connecting piece 5 below the top layer stay bar 2 is connected with the top end of the vertical pipe 1 through a steel wire rope 6. And a steel wire rope 6 is used for drawing between the top end of the vertical pipe 1 and a connecting piece 5 positioned below the top layer, so that the structural strength of the upper structure experiment model of the floating spiral vertical axis fan is ensured.

An L-shaped fixing block 4 is arranged between the stay bar 2 and the vertical pipe 1, the vertical part of the fixing block 4 is fixed with the vertical pipe 1 through a screw 7, and the horizontal part of the fixing block 4 is fixed with the end part of the stay bar 2 through the screw 7. The L-shaped fixing block 4 is connected to the joint between the vertical pipe 1 and the support rod 2, so that the fitting degree between the vertical pipe 1 and the support rod 2 is effectively improved. The connecting piece 5 is L-shaped, the horizontal part of the connecting piece 5 is fixed with the end part of the stay bar 2 through a screw 7, and the vertical part of the connecting piece 5 is fixed with the vertical axis helical fan blade 3 through an adhesive mode. The L-shaped connecting piece 5 is connected to the joint between the stay bar 2 and the vertical axis spiral fan blade 3, so that the fitting degree between the stay bar 2 and the vertical axis spiral fan blade 3 is effectively improved.

The stay bar 2 on the upper layer is connected to the upper quarter of the vertical axis helical fan blade 3, and the stay bar 2 on the lower layer is connected to the lower quarter of the vertical axis helical fan blade 3. Three support rods 2 on each layer are uniformly distributed at intervals of 120 degrees in the horizontal direction, are vertically connected to one fourth of the blades 3 of the vertical axis spiral fan respectively, and are matched with steel wire ropes 6 to further improve the structural strength of the upper structure experimental model of the floating spiral vertical axis fan.

The invention has the following manufacturing steps:

firstly, an aluminum pipe with a proper size is selected, a specified length is cut out to manufacture a vertical pipe 1, three sections of Barbie sandwood with specified size are cut out, epoxy resin and carbon cloth are wrapped outside the Barbie sandwood to manufacture a support rod 2, and the carbon cloth and the epoxy resin are alternately paved to manufacture a vertical axis spiral fan blade 3.

Secondly, establishing a model of the fixing block 4 and the connecting piece 5 according to the shapes of the vertical pipe 1, the support rod 2 and the vertical axis spiral fan blade 3 in modeling software, and printing by using a 3D printing technology.

Thirdly, the two layers of connecting pieces 5 are respectively stuck to the upper side quarter and the lower side quarter of the vertical axis spiral fan blade 3 in an adhesive mode, and the connecting pieces 5 are fixed with the support rods 2 through screws 7.

Fourthly, the fixing block 4 is connected with the vertical pipe 1 by the screw 7, and then the fixing block 4 is connected with the stay bar 2 by the screw 7.

Connecting the top end of the vertical pipe 1 with a connecting piece 5 positioned at the lower layer by using a steel wire rope 6 to obtain a complete experimental model of the upper structure of the floating spiral vertical shaft fan, wherein the mass, the strength and the geometric shape of the experimental model meet the design requirements.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.