CN212708132U - Flow guiding auxiliary material for vacuum infusion of wind blade - Google Patents

Flow guiding auxiliary material for vacuum infusion of wind blade Download PDF

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Publication number
CN212708132U
CN212708132U CN202021443166.8U CN202021443166U CN212708132U CN 212708132 U CN212708132 U CN 212708132U CN 202021443166 U CN202021443166 U CN 202021443166U CN 212708132 U CN212708132 U CN 212708132U
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China
Prior art keywords
flow guide
sewing
auxiliary material
layer
vacuum infusion
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Active
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CN202021443166.8U
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Chinese (zh)
Inventor
乔小亮
李洁
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sinomatech Wind Power Blade Co Ltd
Original Assignee
Zhongfu Lianzhong Hami Composites Co ltd
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Abstract

The utility model discloses a flow guide auxiliary material for vacuum infusion of a wind blade, which comprises a lower layer of demoulding cloth (1), a middle layer of film (2) with holes and an upper layer of flow guide net (3); the lower layer demoulding cloth (1), the middle layer film (2) with holes and the upper layer flow guide net (3) are sewed into a whole through sewing threads; and sewing one suture line on each of the two sides of the flow guide auxiliary material in the width direction at a distance of 5-10 cm from the edge, and sewing one suture line in the middle at intervals of 30-40 cm according to the width size. The utility model provides a wind-force blade vacuum is filled with water conservancy diversion and is assisted material, the integrated nature is strong, and the number of times is repeatedly laid in the reducible operation in-process, lays the convenience, and production efficiency is high. And the structure is firm, the shape following performance is good, the deformation is not easy to occur, the resin flowing speed in the vacuum infusion process cannot be influenced, and the practicability is high.

Description

Flow guiding auxiliary material for vacuum infusion of wind blade
Technical Field
The utility model relates to a wind-powered electricity generation blade preparation field, concretely relates to wind-powered electricity generation blade vacuum is filled with water conservancy diversion and is assisted material.
Background
With the gradual exhaustion of non-renewable energy resources on the earth, the importance of renewable energy resources is recognized worldwide, and high attention is paid to the development of the wind power industry. As the most important part in the wind turbine, the blade plays an irreplaceable role in the wind turbine, and a wind turbine blade with excellent design, reliable quality and high efficiency is a key factor for ensuring the normal operation of the whole wind turbine.
In the existing vacuum infusion molding process in the industry, after the main material of the blade is laid, the main material is laid on the surface in sequence: demoulding cloth, a film with holes, a flow guide net and a flow guide groove. This patent provides a novel compound water conservancy diversion material, and this combined material is woven the water conservancy diversion net by drawing of patterns cloth, the foraminiferous film in intermediate level, upper strata and sews up and form, satisfies blade vacuum infusion shaping in-process operation requirement, and convenient and fast can use manpower sparingly, has stronger usability.
At present, adhesives are used in the industry for bonding demolding cloth, a perforated film and a flow guide net product, but the adhesives are limited by the characteristics of the adhesives, so that the holes of the perforated film in the middle layer are easily blocked, and the resin flow rate in the vacuum infusion process is influenced.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the utility model aims at having the vacuum to pour into the forming process now, the water conservancy diversion medium is laid the process step loaded down with trivial details, consuming time long, provides one kind and lays convenient, efficient wind-force blade vacuum and fills with water conservancy diversion and assist the material.
The technical scheme is as follows: in order to realize the utility model discloses a purpose, the utility model discloses a technical scheme do:
a flow guide auxiliary material for vacuum infusion of a wind blade comprises a lower layer of demoulding cloth, a middle layer of film with holes and an upper layer of flow guide net; the lower layer demoulding cloth, the middle layer film with holes and the upper layer diversion net are sewed into a whole through sewing threads;
sewing one sewing thread at the two sides of the flow guide auxiliary material in the width direction 5-10 cm away from the edges, and sewing one sewing thread at the interval of 30-40 cm in the middle according to the width size;
the upper diversion net adopts a warp-weft direction mesh grid; the lower layer demoulding cloth is woven by polyester fiber silk threads.
In the sewing process, the perforated film is made of PP/PE (or modified) materials and has ultrathin thickness, so that the perforated film is easy to tear when a sewing thread passes through. Therefore, in the sewing process, the middle layer of the film with holes is clamped at two sides through the lower layer of demoulding cloth and the upper layer of flow guide net, so that the tearing degree of the film with holes can be effectively reduced.
The upper layer of the flow guide net material can be made of PE (LD/HD), and is preferably a warp-weft woven net which is soft and flexible, and is beneficial to rolling after sewing; or alternatively an extruded flow directing mesh. The lower layer demoulding cloth is woven by adopting PA6/PA 66/polyester fiber material threads.
Has the advantages that: the utility model provides a wind-force blade vacuum is filled with water conservancy diversion auxiliary material compares in traditional water conservancy diversion material, and the integrated nature is strong, need the water conservancy diversion material of laying in proper order layer upon layer with traditional process, and synthetic an organic whole reduces the operation in-process and repeatedly lays the number of times, lays conveniently, and production efficiency is high. And the structure is firm, the shape following performance is good, and particularly, after the demoulding cloth with very thin thickness is integrated, the demoulding cloth is not easy to deform.
Drawings
Fig. 1 is a schematic view of a cross-sectional structure provided by the present invention.
Fig. 2 is a schematic view of the suture spacing structure provided by the present invention.
Detailed Description
The present invention will be further clarified by the following description with reference to the attached drawings and specific examples, which should be understood as being merely illustrative of the present invention and not limiting the scope of the present invention, and modifications of various equivalent forms of the present invention by those skilled in the art after reading the present invention, all fall within the scope defined by the appended claims of the present application.
Example 1
As shown in figure 1, the flow guide auxiliary material for vacuum infusion of the wind blade comprises a lower layer of demoulding cloth 1, a middle layer of film 2 with holes and an upper layer of flow guide net 3; the lower layer demoulding cloth 1, the middle layer film 2 with holes and the upper layer flow guide net 3 are sewed into a whole through sewing threads;
as shown in fig. 2, the width of the lower layer demoulding cloth 1, the middle layer perforated film 2 and the upper layer flow guide net 3 is the same, if the width is 100cm, two sewing threads are respectively sewed on the flow guide auxiliary material at the distance of 10cm from the edges on both sides in the width direction, and one sewing thread is sewed in the middle at intervals of 40cm according to the width size;
the upper layer flow guide net 3 adopts a warp-weft direction woven net; the lower layer demoulding cloth 1 is woven by polyester fiber silk threads. The stitch length of the sewing thread is less than 10 cm.
Compared with the existing products, the flow guide auxiliary material provided by the utility model can reduce the repeated laying times in the operation process and effectively improve the production efficiency; compared with other composite gluing products, the resin flow speed in the vacuum infusion process is not influenced.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (2)

1. A flow guide auxiliary material for vacuum infusion of a wind blade is characterized by comprising a lower layer of demoulding cloth (1), a middle layer of film (2) with holes and an upper layer of flow guide net (3); the lower layer demoulding cloth (1), the middle layer film (2) with holes and the upper layer flow guide net (3) are sewed into a whole through sewing threads;
sewing one sewing thread at the two sides of the flow guide auxiliary material in the width direction 5-10 cm away from the edges, and sewing one sewing thread at the interval of 30-40 cm in the middle according to the width size;
the upper layer flow guide net (3) adopts a warp-weft direction woven net; the lower layer demoulding cloth (1) is woven by polyester fiber silk threads.
2. The wind blade flow guiding auxiliary material for vacuum infusion according to claim 1, wherein the stitch length of the sewing thread is less than or equal to 10 cm.
CN202021443166.8U 2020-07-21 2020-07-21 Flow guiding auxiliary material for vacuum infusion of wind blade Active CN212708132U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021443166.8U CN212708132U (en) 2020-07-21 2020-07-21 Flow guiding auxiliary material for vacuum infusion of wind blade

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021443166.8U CN212708132U (en) 2020-07-21 2020-07-21 Flow guiding auxiliary material for vacuum infusion of wind blade

Publications (1)

Publication Number Publication Date
CN212708132U true CN212708132U (en) 2021-03-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202021443166.8U Active CN212708132U (en) 2020-07-21 2020-07-21 Flow guiding auxiliary material for vacuum infusion of wind blade

Country Status (1)

Country Link
CN (1) CN212708132U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112959692A (en) * 2021-04-01 2021-06-15 上海艾港风电科技发展有限公司 Partition filling process method for wind power blade

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112959692A (en) * 2021-04-01 2021-06-15 上海艾港风电科技发展有限公司 Partition filling process method for wind power blade
CN112959692B (en) * 2021-04-01 2023-09-01 上海艾港风电科技发展有限公司 Regional pouring process method for wind power blade

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GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20231017

Address after: No. 17 Zhenhua East Road, Lianyungang High tech Industrial Development Zone, Lianyungang City, Jiangsu Province, 222069

Patentee after: LIANYUNGANG ZHONGFU LIANZHONG COMPOSITES GROUP Co.,Ltd.

Address before: 839000 Guangdong Industrial Park, Yizhou District, Hami, the Xinjiang Uygur Autonomous Region

Patentee before: ZHONGFU LIANZHONG (HAMI) COMPOSITES CO.,LTD.

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20231115

Address after: 9th Floor, Block C, Building B6, Dongsheng Science and Technology Park, No. 66 Xixiaokou Road, Haidian District, Beijing, 100192

Patentee after: SINOMATECH WIND POWER BLADE Co.,Ltd.

Address before: No. 17 Zhenhua East Road, Lianyungang High tech Industrial Development Zone, Lianyungang City, Jiangsu Province, 222069

Patentee before: LIANYUNGANG ZHONGFU LIANZHONG COMPOSITES GROUP Co.,Ltd.