CN112917771A - Resin-rich treatment method for prefabricated inserts at roots of megawatt wind generating sets - Google Patents
Resin-rich treatment method for prefabricated inserts at roots of megawatt wind generating sets Download PDFInfo
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- CN112917771A CN112917771A CN202110092000.9A CN202110092000A CN112917771A CN 112917771 A CN112917771 A CN 112917771A CN 202110092000 A CN202110092000 A CN 202110092000A CN 112917771 A CN112917771 A CN 112917771A
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- root
- prefabricated
- stripping layer
- insert
- root prefabricated
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- 238000000034 method Methods 0.000 title claims abstract description 39
- 239000011347 resin Substances 0.000 title claims abstract description 34
- 229920005989 resin Polymers 0.000 title claims abstract description 34
- 238000004519 manufacturing process Methods 0.000 claims abstract description 40
- 230000008569 process Effects 0.000 claims abstract description 8
- 238000002360 preparation method Methods 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 22
- 230000005611 electricity Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000007787 solid Substances 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
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C37/0067—Using separating agents during or after moulding; Applying separating agents on preforms or articles, e.g. to prevent sticking to each other
- B29C37/0075—Using separating agents during or after moulding; Applying separating agents on preforms or articles, e.g. to prevent sticking to each other using release sheets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/08—Blades for rotors, stators, fans, turbines or the like, e.g. screw propellers
- B29L2031/082—Blades, e.g. for helicopters
- B29L2031/085—Wind turbine blades
Abstract
The invention discloses a resin-rich treatment method for prefabricated inserts at the root of a megawatt wind generating set, which comprises the following steps: the method comprises the following steps: according to the manufacturing requirement of the root prefabricated plug-in of the wind generating set, the root prefabricated plug-in is manufactured, and the root prefabricated plug-in is demoulded on a root prefabricated plug-in mould; step two: according to the fitting condition of the root prefabricated insert and the main mold, selecting a target area to cover a stripping layer in the root prefabricated insert area; step three: transferring the root prefabricated insert and the stripping layer assembly to a main mold together for positioning, so that the root prefabricated insert is attached to the mold, and manufacturing a product; step four: and (4) demolding after the wind power blade is manufactured, removing the stripping layer and the rich resin outside the stripping layer along the stripping layer, and performing the next procedure. The invention has reasonable process design, can realize the rapid preparation of products, improves the manufacturing efficiency of the blade, shortens the manufacturing period of the blade and reduces the manufacturing cost.
Description
Technical Field
The invention relates to a resin-rich treatment method for a prefabricated insert at the root of a megawatt wind generating set.
Background
Wind power has obtained extensive attention as a clean energy that can regenerate, pollution-free, easily acquire, and along with the increase to wind-powered electricity generation energy demand, the preparation size of wind-powered electricity generation blade also develops towards bigger longer, and wind-powered electricity generation blade structure that follows also becomes more and more complicated, especially wind-powered electricity generation blade root region, the structure is complicated, and the glass fiber number of piles is thicker, consequently lays and the shaping fills in wind-powered electricity generation blade earlier stage and has brought very big challenge. At present, under the intense competitive environment of the wind power blade industry, the manufacturing period and the manufacturing quality requirements of the wind power blade are gradually improved, and the manufacture of the prefabricated plug-in at the root part of the megawatt wind generating set is advanced towards the direction of the standardization and the mass production. The root prefabricated plug-in manufacturing process has deformation, the root prefabricated plug-in is placed back to the main die, so that the problem of fitting with the die is solved, after the wind power blade is manufactured, a layer of rich resin is attached to the outer surface of the root prefabricated plug-in, the rich resin has the characteristics of hard texture, brittleness and the like, the effectiveness of a surface protective layer of the wind power blade is reduced, the layer of rich resin is removed with high difficulty, and the product manufacturing period is seriously influenced.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to meet the process manufacturing requirement of the root prefabricated insert of the megawatt wind generating set, solve the problem that the root prefabricated insert is rich in resin, and provide a resin-rich treatment method for the root prefabricated insert of the megawatt wind generating set, which has the advantages of reasonable process design, low cost and strong operability.
The method is beneficial to auxiliary removal of the rich resin attached to the outer surface of the prefabricated plug-in at the root part in the manufacturing process of the wind power blade, shortens the manufacturing period of the wind power blade and reduces the manufacturing cost.
The technical scheme is as follows: in order to realize the purpose of the invention, the invention adopts the technical scheme that:
a resin-rich treatment method for prefabricated inserts at the root of a megawatt wind generating set comprises the following steps:
the method comprises the following steps: according to the manufacturing process requirements of the root prefabricated plug-in unit of the wind generating set, the root prefabricated plug-in unit is manufactured, and the root prefabricated plug-in unit is demoulded on a root prefabricated plug-in unit mould;
step two: according to the fitting condition of the root prefabricated insert and the main mold, selecting a target area to cover a stripping layer in the root prefabricated insert area;
step three: transferring the root prefabricated insert and the stripping layer into a main mold together to complete positioning, so that the root prefabricated insert is attached to the mold and is produced in the next step;
step four: and (3) demolding after the wind power blade is manufactured, removing the stripping layer and the rich resin outside the stripping layer along the stripping layer, and performing the next procedure of wind power blade production to finally form the qualified wind power blade.
Preferably, the resin-rich treatment method for the prefabricated insert at the root part of the megawatt wind generating set is characterized in that the prefabricated insert and the stripping layer assembly are transferred to a main mold together for positioning. The blade shell can be directly manufactured according to the manufacturing requirements of the wind power blade process.
As a preferred scheme, in the method for processing rich resin of the prefabricated root insert of the megawatt wind generating set, the requirement of the prefabricated root insert is determined by the design structure of the target blade in the actual design process of the wind turbine blade, after the prefabricated root insert is completed, the prefabricated root insert is transferred to a main mold, and the coverage area required by the stripping layer is designed according to the gap between the prefabricated root insert and the main mold.
Preferably, in the method for processing the rich resin of the root preform insert of the megawatt wind generating set, the rich resin of the root preform insert is generated between the outer surface of the root preform and the main mold.
Preferably, in the resin-rich treatment method for the root prefabricated insert of the megawatt wind generating set, the peeling layer of the root prefabricated insert is designed according to the clearance between the target blade root prefabricated insert and the wind turbine blade main mold.
Preferably, in the resin-rich treatment method for the prefabricated inserts at the root of the megawatt wind generating set, the stripping layer is made of conventional strippable materials, such as a perforated film, a release agent, solid floor wax and other easily-strippable materials, and the quality of the product appearance is not affected.
Has the advantages that: compared with the prior art, the resin-rich treatment method for the prefabricated inserts at the root of the megawatt wind generating set has the following advantages that:
the method for processing the root prefabricated plug-in of the wind generating set rich in resin, provided by the invention, has the advantages of reasonable process design, capability of realizing rapid preparation of products, improvement of blade manufacturing efficiency, shortening of blade manufacturing period and finally reduction of blade manufacturing cost. The method brings great help to the removal of the resin-rich surface of the prefabricated root insert in the blade production process, shortens the blade manufacturing period by about 8 hours, and can greatly improve the production efficiency.
Drawings
Fig. 1 is a schematic structural diagram of a resin-rich treatment method for a prefabricated insert at the root of a megawatt wind generating set provided by the invention.
Detailed Description
The present invention is further illustrated by the following figures and specific examples, which are to be understood as illustrative only and not as limiting the scope of the invention, which is to be given the full breadth of the appended claims and any and all equivalent modifications thereof which may occur to those skilled in the art upon reading the present specification.
Example 1
As shown in FIG. 1, a resin-rich treatment method for prefabricated inserts of the root part of a megawatt wind turbine blade with the length of 76 meters comprises the following steps:
the method comprises the following steps: according to the manufacturing process of the 76B-4.X blade, laying and pouring a glass fiber cloth layer on the root prefabricated insert 3 in a 76B-4.X root prefabricated insert mold 4, and finishing the manufacturing of the root prefabricated insert after precuring;
step two: after the root prefabricated insert 3 is manufactured at 76B-4.X, the root prefabricated insert 3 is separated in a root prefabricated insert mould 4 at 76B-4.X, and the lower surface of the root prefabricated insert 3 is covered with a stripping layer 2;
step three: after the peeling layer 2 is covered, the root prefabricated insert 3 and the peeling layer 2 are moved to the positions corresponding to the main die 1 of 76B-4.X, and after the root prefabricated insert and the peeling layer 2 are placed, the blade shell can be directly manufactured according to the manufacturing requirements of the wind power blade process;
step four: and (6) demolding after the manufacturing of the 76B-4.X wind power blade is finished, removing the stripping layer 2 and the rich resin outside the stripping layer along the stripping layer, and carrying out the next procedure of the wind power blade production.
The area covered by the stripping layer is an area which is rich in resin and has the thickness of more than or equal to 0.5mm, the stripping layer is not in contact with the die, and the prefabricated inserts at the root and the main die are accurately positioned.
The stripping layer of the root prefabricated insert is beneficial to removing the rich resin formed between the root prefabricated insert and the clearance of the die in the blade production and manufacturing process, the surface quality of the manufactured semi-finished product of the wind power blade is good, the blade production period is shortened, and the blade production efficiency is improved.
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 (4)
1. A resin-rich treatment method for prefabricated inserts at the root of a megawatt wind generating set is characterized by comprising the following steps:
the method comprises the following steps: according to the manufacturing process requirements of the root prefabricated plug-in unit of the wind generating set, the root prefabricated plug-in unit is manufactured, and the root prefabricated plug-in unit is demoulded on a root prefabricated plug-in unit mould;
step two: according to the fitting condition of the root prefabricated insert and the main mold, selecting a target area to cover a stripping layer in the root prefabricated insert area;
step three: transferring the root prefabricated insert and the stripping layer into a main mold together to complete positioning, so that the root prefabricated insert is attached to the mold, and manufacturing a product;
step four: and (3) demolding after the wind power blade is manufactured, removing the stripping layer and the rich resin outside the stripping layer along the stripping layer, and performing the next procedure of wind power blade production to finally form the qualified wind power blade.
2. A resin-rich treatment method for prefabricated inserts at the root of a megawatt wind generating set is characterized by comprising the following steps:
the method comprises the following steps: according to the manufacturing process of the blade, the root prefabricated insert (3) is required to be manufactured in a root prefabricated insert die (4);
step two: after the root prefabricated insert (3) is manufactured, the root prefabricated insert (3) is separated in a root prefabricated insert mold (4), and then a stripping layer (2) is covered on the lower surface of the root prefabricated insert (3);
step three: after the stripping layer (2) is covered, the root prefabricated insert (3) and the stripping layer (2) are moved to the corresponding position of the main die (1), and after the root prefabricated insert and the stripping layer (2) are placed, the blade shell is manufactured according to the wind power blade process manufacturing requirement;
step four: after the wind power blade is manufactured, demolding is carried out, the stripping layer (2) and rich resin outside the stripping layer are removed together along the stripping layer, and the next procedure of wind power blade production is carried out;
the coverage area of the stripping layer (2) is an area which generates rich resin and has the thickness of more than or equal to 0.5mm, the stripping layer is not in contact with the die, and the prefabricated root plug-in and the main die are accurately positioned.
3. The resin-rich treatment method for the prefabricated inserts at the root part of the megawatt wind generating set as claimed in claim 1, characterized by comprising the following steps: and designing the coverage area required by the stripping layer according to the gap between the root prefabricated insert and the main mold.
4. The resin-rich treatment method for the prefabricated inserts at the roots of the megawatt wind generating sets as claimed in any one of claims 1 to 3, characterized by comprising the following steps: after the prefabricated plug-in and the stripping layer assembly are transferred to a main mold together for positioning, the blade shell can be manufactured directly according to the wind power blade process manufacturing requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110092000.9A CN112917771A (en) | 2021-01-23 | 2021-01-23 | Resin-rich treatment method for prefabricated inserts at roots of megawatt wind generating sets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110092000.9A CN112917771A (en) | 2021-01-23 | 2021-01-23 | Resin-rich treatment method for prefabricated inserts at roots of megawatt wind generating sets |
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| Publication Number | Publication Date |
|---|---|
| CN112917771A true CN112917771A (en) | 2021-06-08 |
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|---|---|---|---|
| CN202110092000.9A Pending CN112917771A (en) | 2021-01-23 | 2021-01-23 | Resin-rich treatment method for prefabricated inserts at roots of megawatt wind generating sets |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120312469A1 (en) * | 2010-03-03 | 2012-12-13 | Siemens Aktiengesellschaft | Method and mould for moulding a wind turbine blade |
| CN103946012A (en) * | 2011-12-30 | 2014-07-23 | 氰特科技股份有限公司 | Peel ply, method of surface preparation and bonding composite structures using the same |
| CN104908343A (en) * | 2014-03-11 | 2015-09-16 | 西门子公司 | A method for manufacturing a component for a wind turbine |
| US20180072005A1 (en) * | 2015-04-10 | 2018-03-15 | Covestro Deutschland Ag | Method for manufacturing fiber-reinforced plastic products |
| CN108016055A (en) * | 2017-12-11 | 2018-05-11 | 连云港中复连众复合材料集团有限公司 | A kind of method using pultrusion prefabricated component manufacture root of blade |
| CN109676966A (en) * | 2018-11-21 | 2019-04-26 | 洛阳双瑞风电叶片有限公司 | A kind of wind electricity blade manufacturing method |
| CN109732946A (en) * | 2019-02-14 | 2019-05-10 | 上海电气风电集团有限公司 | The preparation process of wind electricity blade with blade root prefabricated component |
| CN110884165A (en) * | 2019-11-11 | 2020-03-17 | 天津中车风电叶片工程有限公司 | Construction structure and method for improving resin enrichment of complex profile of composite web |
| CN211500884U (en) * | 2019-10-14 | 2020-09-15 | 南通美固复合材料有限公司 | Wind power blade root embedded part |
-
2021
- 2021-01-23 CN CN202110092000.9A patent/CN112917771A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120312469A1 (en) * | 2010-03-03 | 2012-12-13 | Siemens Aktiengesellschaft | Method and mould for moulding a wind turbine blade |
| CN103946012A (en) * | 2011-12-30 | 2014-07-23 | 氰特科技股份有限公司 | Peel ply, method of surface preparation and bonding composite structures using the same |
| CN104908343A (en) * | 2014-03-11 | 2015-09-16 | 西门子公司 | A method for manufacturing a component for a wind turbine |
| US20180072005A1 (en) * | 2015-04-10 | 2018-03-15 | Covestro Deutschland Ag | Method for manufacturing fiber-reinforced plastic products |
| CN108016055A (en) * | 2017-12-11 | 2018-05-11 | 连云港中复连众复合材料集团有限公司 | A kind of method using pultrusion prefabricated component manufacture root of blade |
| CN109676966A (en) * | 2018-11-21 | 2019-04-26 | 洛阳双瑞风电叶片有限公司 | A kind of wind electricity blade manufacturing method |
| CN109732946A (en) * | 2019-02-14 | 2019-05-10 | 上海电气风电集团有限公司 | The preparation process of wind electricity blade with blade root prefabricated component |
| CN211500884U (en) * | 2019-10-14 | 2020-09-15 | 南通美固复合材料有限公司 | Wind power blade root embedded part |
| CN110884165A (en) * | 2019-11-11 | 2020-03-17 | 天津中车风电叶片工程有限公司 | Construction structure and method for improving resin enrichment of complex profile of composite web |
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Application publication date: 20210608 |
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