CN111923442A - Wind power blade bonded by flexible material and bonding method - Google Patents
Wind power blade bonded by flexible material and bonding method Download PDFInfo
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- CN111923442A CN111923442A CN202010652683.4A CN202010652683A CN111923442A CN 111923442 A CN111923442 A CN 111923442A CN 202010652683 A CN202010652683 A CN 202010652683A CN 111923442 A CN111923442 A CN 111923442A
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- adhesive
- shell
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- 239000000463 material Substances 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000000853 adhesive Substances 0.000 claims abstract description 28
- 230000001070 adhesive effect Effects 0.000 claims abstract description 28
- 239000011162 core material Substances 0.000 claims description 13
- 239000004744 fabric Substances 0.000 claims description 11
- 238000005520 cutting process Methods 0.000 claims description 10
- 238000000465 moulding Methods 0.000 claims description 9
- 239000003365 glass fiber Substances 0.000 claims description 8
- 239000003292 glue Substances 0.000 claims description 5
- 239000011347 resin Substances 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 230000037303 wrinkles Effects 0.000 claims description 3
- 238000007605 air drying Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000010248 power generation Methods 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000002156 mixing Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/36—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and impregnating by casting, e.g. vacuum casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
- B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
- B29C35/10—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation for articles of indefinite length
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/06—Rotors
- F03D1/065—Rotors characterised by their construction elements
- F03D1/0675—Rotors characterised by their construction elements of the blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
- B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
- B29C2035/0827—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using UV radiation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/20—Rotors
- F05B2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Toxicology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Thermal Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Energy (AREA)
- Sustainable Development (AREA)
- Electromagnetism (AREA)
- Wind Motors (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention provides a wind power blade bonding method using flexible materials for bonding, relates to the technical field of wind power generation blades, and comprises a novel flexible bonding material and a shell. The method solves the problems caused by insufficient or excessive structural adhesive in the existing scheme, can solve the problems of field equipment, bonding design forms and the like, avoids the influence of open operation of structural adhesive chemicals on environment and personnel health, simultaneously optimizes the existing bonding form, and improves the product quality and the production efficiency.
Description
Technical Field
The invention relates to the technical field of wind power generation blades, in particular to a wind power blade bonded by using a flexible material and a bonding method.
Background
At present, after the PS surface (namely a pressure surface) and the SS surface (namely a suction surface) of a shell are cured by pouring resin, auxiliary materials for pouring are cleaned, and particularly the bonding surface area for coating structural adhesive is cleaned. The special structural adhesive mixing equipment is used for coating and bonding the structural adhesive, the two shells are bonded by turning the die, and high-temperature curing of the structural adhesive is achieved by adding heating treatment at a certain temperature to complete forming and manufacturing of the blade blank.
However, the existing structural adhesive for bonding is prepared by uniformly mixing a pasty material consisting of multiple AB components in a certain proportion, a stirring mode and equipment, and coating under the limiting conditions of certain pressure, temperature and open time; the mixing uniformity, the environmental temperature and the like influence the high state of the structural adhesive pile, air is very easily entrained to cause cavities or closed bubbles on the bonding surface, and the product strength is reduced; meanwhile, the volatile smell of the materials in the paste state causes environmental pollution and personnel safety problems. Insufficient adhesion results in a decrease in strength; when the adhesive is hung more, secondary damage can be caused in the running process of the wind turbine generator, or the damage of a fan and personnel can be caused.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the technical problems of short performance and bonding structure defects of bonding materials of PS and SS surface shells in the prior art, and realize quick and efficient die assembly bonding forming by designing a specific flexible bonding material.
The invention is realized by the following technical scheme: 1. a wind power blade bonding method using flexible materials for bonding is characterized in that:
the method comprises the following steps:
(1) preparing a specific flexible bonding material (4), and cutting the specific shape and size by using cloth cutting scissors or other cutting tools according to the design requirements of bonding width and bonding thickness for later use;
(2) the shell (3) is wound by the glass fiber cloth to realize layering, and the surface of the glass fiber cloth is smooth and has no wrinkles;
(3) integrally pouring and molding the shell (3) wound with the layers, and performing high-temperature curing molding;
(4) cleaning the surfaces to be bonded of the two shells (3), and tearing off the pouring auxiliary materials on the surfaces of the shells;
(5) laying the cut flexible bonding material (4) in the step (1) on a surface to be bonded, and tightly pasting and pressing;
(6) the two shells (3) are bonded, and the blades are bonded, cured and molded.
The flexible adhesive material (4) is a roll or sheet material.
The flexible bonding material (4) is a double-sided adhesive structure with adhesive on the front side and the back side, and can tightly connect other two structures.
The bonding, curing and molding of the flexible bonding material (4) are completed under the conditions of 60-90 ℃ and oxygen and ultraviolet irradiation.
The invention has the beneficial effects that: the problem that the insufficient or too much problem that causes is glued to the structure in the present scheme can be satisfied and eliminated, the problem to field device, bonding design form etc. can be eliminated, the influence of open operation of structure glue chemicals to environment and personnel health is avoided, optimizes current bonding form simultaneously, improves product quality, production efficiency.
Drawings
Fig. 1 shows a schematic view of the housing tip structure.
FIG. 2 shows the structural intent of the shell after ply pouring.
FIG. 3 shows the wind blade structural intent after bonding.
In the figure: 1. a girder; 2. a beam-side core material; 3. a housing; 4. a flexible adhesive material; 5. a web; 6. a leaf core material.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and preferred embodiments.
As shown in the figure, the technical problem to be solved by the invention is mainly realized by the following scheme, which mainly comprises a novel flexible bonding material 4 and a shell 3, wherein the flexible bonding material 4 is attached to a bonding surface after the bonding surface of the shell 3 is filled with an auxiliary material and torn off by cutting the flexible bonding material with a certain thickness into a required bonding surface shape, and then the die assembly bonding is completed, and the specific steps are as follows:
(1) preparing a specific flexible bonding material 4, and cutting the specific shape and size by using cloth cutting scissors or other cutting tools according to the design requirements of bonding width and bonding thickness for later use;
(2) winding the shell 3 by using glass fiber cloth to realize layering, wherein the surface of the glass fiber cloth is smooth and has no wrinkles;
(3) integrally pouring and molding the shell 3 wound with the layers, and performing high-temperature curing molding;
(4) cleaning the surfaces to be bonded of the two shells 3, and tearing off the pouring auxiliary materials on the surfaces of the shells;
(5) laying the cut flexible bonding material 4 in the step (1) on a surface to be bonded, and tightly pasting and pressing;
(6) and the two shells 3 are bonded, and the blades are bonded, cured and molded.
The flexible adhesive material 4 may be a roll or a sheet.
The flexible bonding material 4 is a double-sided adhesive structure with adhesive on both the front and back surfaces, and can tightly connect other two structures.
The bonding, curing and molding of the flexible bonding material 4 are completed under the conditions of 60-90 ℃ and oxygen and ultraviolet irradiation.
The wind power blade manufactured by the method comprises the following structures: the composite structure comprises shells 3, flexible bonding materials 4, a girder 1 with a beam edge core material 2 and a web 5, wherein the two shells 3 are bonded and fixed by the flexible bonding materials 4, the girder 1 with the beam edge core material 2 is formed by winding a glass fiber cloth on the girder 1 and pouring resin glue on the beam edge core material 2 and then air-drying the resin glue, the beam edge core material 2 is arranged on two sides of the girder 1, and blade core materials 6 are arranged on two sides of the beam edge core material 2;
the flexible bonding material 4 is a double-sided adhesive structure with adhesive on both the front and back surfaces, and can tightly connect other two structures.
The beam structure also comprises two webs 5, and two ends of each web 5 are respectively bonded to the two girders 1;
the flexible adhesive material 4 is a roll or sheet material.
The invention has the beneficial effects that:
a) the forming mode of paving and finishing the bonding by the flexible bonding material 4 replaces the original design of coating, bonding and forming the paste glue solution, thus changing the manufacturing process, reducing the generation of unqualified products in the original bonding process and improving the bonding strength.
b) And the flexible material capable of being cut is adopted, so that the quality hidden danger of structural adhesive bonding is eliminated.
c) The flexible material is convenient to carry, install and store, and can meet the requirement of blade bonding surfaces with different shapes and complex structures.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various 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 (6)
1. A wind power blade bonding method using flexible materials for bonding is characterized in that:
the method comprises the following steps:
(1) preparing a specific flexible bonding material (4), and cutting the specific shape and size by using cloth cutting scissors or other cutting tools according to the design requirements of bonding width and bonding thickness for later use;
(2) the shell (3) is wound by the glass fiber cloth to realize layering, and the surface of the glass fiber cloth is smooth and has no wrinkles;
(3) integrally pouring and molding the shell (3) wound with the layers, and performing high-temperature curing molding;
(4) cleaning the surfaces to be bonded of the two shells (3), and tearing off the pouring auxiliary materials on the surfaces of the shells;
(5) laying the cut flexible bonding material (4) in the step (1) on a surface to be bonded, and tightly pasting and pressing;
(6) the two shells (3) are bonded, and the blades are bonded, cured and molded.
2. The bonding method according to claim 1, characterized in that: the flexible adhesive material (4) is a roll or sheet material.
3. The bonding method according to claim 1, characterized in that: the flexible bonding material (4) is a double-sided adhesive structure with adhesive on the front side and the back side, and can tightly connect other two structures.
4. The bonding method according to any one of claims 1 to 3, characterized in that: the bonding, curing and molding of the flexible bonding material (4) are completed under the conditions of 60-90 ℃ and oxygen and ultraviolet irradiation.
5. A wind turbine blade bonded with a flexible material, produced by the bonding method of claim 1, wherein: which comprises a left shell, a right shell and webs, the tips of the left shell and the right shell are bonded by an adhesive part, the adhesive part is formed by a flexible adhesive material (4), two webs are bonded between the left shell and the right shell,
each shell body consists of a crossbeam (1), a beam edge core material (2) and a blade body core material (3) which are sequentially distributed from the middle to two sides, the crossbeam (1) and the beam edge core material (2) are formed by winding glass fiber cloth, filling resin glue and then air-drying, the beam edge core material (2) is adhered to the end surface of the blade body core material (3),
two ends of each web plate are respectively stuck on the two girders (1),
the flexible bonding material (4) is a double-sided adhesive structure with adhesive on the front side and the back side, and can tightly connect other two structures.
6. The wind power blade bonded by the flexible material according to claim 5, wherein: the flexible adhesive material (4) is a roll or sheet material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010652683.4A CN111923442A (en) | 2020-07-08 | 2020-07-08 | Wind power blade bonded by flexible material and bonding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010652683.4A CN111923442A (en) | 2020-07-08 | 2020-07-08 | Wind power blade bonded by flexible material and bonding method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111923442A true CN111923442A (en) | 2020-11-13 |
Family
ID=73313596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010652683.4A Pending CN111923442A (en) | 2020-07-08 | 2020-07-08 | Wind power blade bonded by flexible material and bonding method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111923442A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113021916A (en) * | 2021-03-30 | 2021-06-25 | 中材科技风电叶片股份有限公司 | Bonding module and size design method thereof, wind power blade and bonding method thereof |
| CN113061396A (en) * | 2021-03-30 | 2021-07-02 | 中材科技（阜宁）风电叶片有限公司 | Wind power blade adhesive film assembly, preparation method thereof and bonding method of wind power blade |
-
2020
- 2020-07-08 CN CN202010652683.4A patent/CN111923442A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113021916A (en) * | 2021-03-30 | 2021-06-25 | 中材科技风电叶片股份有限公司 | Bonding module and size design method thereof, wind power blade and bonding method thereof |
| CN113061396A (en) * | 2021-03-30 | 2021-07-02 | 中材科技（阜宁）风电叶片有限公司 | Wind power blade adhesive film assembly, preparation method thereof and bonding method of wind power blade |
| CN113061396B (en) * | 2021-03-30 | 2022-11-01 | 中材科技（阜宁）风电叶片有限公司 | Wind power blade adhesive film assembly, preparation method thereof and bonding method of wind power blade |
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