CN109986813A - Blade inner and outer reinforcing die of wind generating set and preparation method thereof - Google Patents
Blade inner and outer reinforcing die of wind generating set and preparation method thereof Download PDFInfo
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- CN109986813A CN109986813A CN201711475449.3A CN201711475449A CN109986813A CN 109986813 A CN109986813 A CN 109986813A CN 201711475449 A CN201711475449 A CN 201711475449A CN 109986813 A CN109986813 A CN 109986813A
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- cloth
- reinforcement
- blade
- generator set
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- 238000002360 preparation method Methods 0.000 title claims abstract description 43
- 230000003014 reinforcing effect Effects 0.000 title abstract 7
- 239000004744 fabric Substances 0.000 claims abstract description 153
- 238000010438 heat treatment Methods 0.000 claims abstract description 54
- 239000000463 material Substances 0.000 claims abstract description 40
- 238000000034 method Methods 0.000 claims abstract description 28
- 239000011347 resin Substances 0.000 claims abstract description 23
- 229920005989 resin Polymers 0.000 claims abstract description 23
- 230000002787 reinforcement Effects 0.000 claims description 168
- 230000037452 priming Effects 0.000 claims description 37
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 16
- 229910052799 carbon Inorganic materials 0.000 claims description 16
- 239000000835 fiber Substances 0.000 claims description 16
- 239000003365 glass fiber Substances 0.000 claims description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 238000001723 curing Methods 0.000 abstract 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 16
- 230000008569 process Effects 0.000 description 15
- 238000007711 solidification Methods 0.000 description 12
- 230000008023 solidification Effects 0.000 description 12
- 230000010412 perfusion Effects 0.000 description 10
- 239000003795 chemical substances by application Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000007547 defect Effects 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 238000011112 process operation Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000005439 thermosphere Substances 0.000 description 1
Classifications
-
- 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
- B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
- B29C70/681—Component parts, details or accessories; Auxiliary operations
- B29C70/682—Preformed parts characterised by their structure, e.g. form
-
- 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
- B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
- B29C70/78—Moulding material on one side only of the preformed part
-
- 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
-
- 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
- B29L2031/757—Moulds, cores, dies
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Wind Motors (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The invention provides an inner and outer reinforcing die for a blade of a wind generating set and a preparation method thereof. The preparation method of the blade inner reinforcing mold of the wind generating set comprises the following steps: laying at least one first cloth layer on the inner surface of the blade to be reinforced; paving a flexible heating layer on the first cloth layer; paving a material for forming a blade inner reinforcing mold on the flexible heating layer; vacuumizing; and pouring resin into the material for forming the blade inner reinforcing mold by adopting a vacuum pouring method, and heating and curing to form the inner reinforcing mold. The internal and external reinforcing dies for the blades of the wind generating set can realize pre-laying and heating functions, thereby ensuring the product quality and improving the production efficiency.
Description
Technical field
The present invention relates to technical field of wind power generation, overlay and heating function more particularly, to a kind of can be realized
Inside and outside reinforcement mold of wind generator set blade and preparation method thereof.
Background technique
Currently, in wind generator set blade production process, generally using hand paste process, hand paste vacuum bag pressure technique or
Vacuum perfusion process prepares wind generator set blade leading edge or the inside and outside reinforcement of rear.
There are the inside and outside reinforcement of blade front and rear edges to whiten, burr is more, fold etc. for hand paste process and hand paste vacuum bag pressure technique
Defect；Vacuum perfusion process generally uses hand paste resin to carry out priming by vacuum, and perfusion defect is more, and there is perfusion auxiliary material and lose
The defects of rich resin in the impression that stays, fold, part.Vacuum perfusion process is longer there is also the mold time is occupied, and worker is laid with glass
The problems such as process operations such as fine cloth and envelope vacuum pressure maintaining are difficult, the time for causing whole operation process to expend is longer, production efficiency
It is extremely inefficient；Vacuum system leak rate is very high, and the repair rate of product is also very high.
Above-mentioned three kinds of current inside and outside reinforcement process of wind generator set blade use the inside and outside reinforcement mold of blade.And
And it requires to solidify after carrying out after the inside and outside reinforcement process of above-mentioned three kinds of wind generator set blades, and solidification is general afterwards
It is heated by blade shell mold or using the ancillary equipments such as other electric blanket, heat lamp, in the presence of such heating method
State problem: curing mode is inconvenient, and the bad control of solidification temperature, heating efficiency is very low, the time that entire heating process expends
Longer, energy consumption is larger, and production efficiency is lower etc..
Therefore, it is necessary to a kind of can be realized to overlay and the inside and outside reinforcement mold of the wind generator set blade of heating function.
Summary of the invention
To solve the above-mentioned problems, propose that the present invention, the present invention provide a kind of inside and outside reinforcement mould of wind generator set blade
Tool and preparation method thereof.
According to an aspect of the present invention, reinforcement mould preparation method in a kind of wind generator set blade, the wind are provided
Reinforcement mould preparation method in power generator group blade the following steps are included: 1) be laid on the inner surface to the blade of reinforcement to
Few one layer of first layer of cloth；2) flexible heater layer is laid on first layer of cloth；3) it is laid with and is used on the flexible heater layer
The formed in mould material of reinforcement in blade；4) it vacuumizes；5) resin is filled to described using priming by vacuum method and is used to mend in blade
In strong formed in mould material, it is heating and curing and forms interior reinforcement mold.
An exemplary embodiment of the present invention, the flexible heater layer can utilize carbon fibre material or glass fibre
It is made with copper mesh or glass fibre and heating wire.In the wind generator set blade in reinforcement preparation method, it can pass through
Temperature control system controls the flexible heater layer and executes heating, so that curing mode is more convenient, solidification temperature is easier to be controlled, Gu
Change efficiency and solidification effect significantly improves.
An exemplary embodiment of the present invention can make vacuum degree in -0.098Mpa~-0.010Mpa in step 4)
Between, pressure decline is no more than 2% in pressure maintaining 15 minutes or more and 5 minutes, to guarantee the product quality of priming by vacuum.
An exemplary embodiment of the present invention can be embedded with temperature sensor on the flexible heater layer, in order to logical
Cross temperature control system real time monitoring heating temperature.
An exemplary embodiment of the present invention, step 3) can include: be laid on the flexible heater layer at least one layer of
Second layer of cloth, to cover the flexible heater layer and the temperature sensor.
An exemplary embodiment of the present invention, step 3) may also include that the laying multilayer third on second layer of cloth
Layer of cloth.
An exemplary embodiment of the present invention, first layer of cloth and the second layer of cloth can be uniaxial cloth or twin shaft cloth, institute
Stating third layer of cloth can be three axis cloth or four axis cloth.
According to another aspect of the present invention, a kind of interior reinforcement mold is provided, the interior reinforcement mold is including the use of institute as above
The interior reinforcement mold that reinforcement mould preparation method is prepared in the wind generator set blade stated, the interior reinforcement mold can be simultaneous
Reinforcement is overlay and heating function in tool blade.
An exemplary embodiment of the present invention, the interior reinforcement mold, which may also include to be fixedly connected in the blade, to be mended
The adjusting bracket of strong mold and the pedestal for being used to support the adjusting bracket, wherein the adjusting bracket is pivotable relative to the pedestal
And it is scalable, to adjust the angle and height of reinforcement mold in the blade.
According to another aspect of the present invention, a kind of outer reinforcement mould preparation method of wind generator set blade is provided, it is described
1) the outer reinforcement mould preparation method of wind generator set blade on the outer surface to the blade of reinforcement the following steps are included: be laid with
At least one layer of first layer of cloth；2) flexible heater layer is laid on first layer of cloth；3) it is laid with and uses on the flexible heater layer
In the formed in mould material of reinforcement outside blade；4) it vacuumizes；5) resin is filled to described using priming by vacuum method and is used for outside blade
In the formed in mould material of reinforcement, it is heating and curing and forms outer reinforcement mold.
An exemplary embodiment of the present invention, the flexible heater layer can utilize carbon fibre material or glass fibre
It is made with copper mesh or glass fibre and heating wire.Outside the wind generator set blade in reinforcement preparation method, it can pass through
Temperature control system controls the flexible heater layer and executes heating, so that curing mode is more convenient, solidification temperature is easier to be controlled, Gu
Change efficiency and solidification effect significantly improves.
An exemplary embodiment of the present invention can make vacuum degree in -0.098Mpa~-0.010Mpa in step 4)
Between, pressure decline is no more than 2% in pressure maintaining 15 minutes or more and 5 minutes, to guarantee the product quality of priming by vacuum.
An exemplary embodiment of the present invention can be embedded with temperature sensor on the flexible heater layer, in order to logical
Cross temperature control system real time monitoring heating temperature.
An exemplary embodiment of the present invention, step 3) can include: be laid on the flexible heater layer at least one layer of
Second layer of cloth, to cover the flexible heater layer and the temperature sensor.
An exemplary embodiment of the present invention, step 3) may also include that the laying multilayer third on second layer of cloth
Layer of cloth.
An exemplary embodiment of the present invention, first layer of cloth and the second layer of cloth can be uniaxial cloth or twin shaft cloth, institute
Stating third layer of cloth can be three axis cloth or four axis cloth.
According to another aspect of the present invention, a kind of outer reinforcement mold is provided, the outer reinforcement mold is including the use of institute as above
The outer reinforcement mold that the outer reinforcement mould preparation method of the wind generator set blade stated is prepared, the outer reinforcement mold can be simultaneous
Reinforcement is overlay and heating function in tool blade.
An exemplary embodiment of the present invention, the outer reinforcement mold, which may also include to be fixedly connected on outside the blade, to be mended
The adjusting bracket of strong mold and the pedestal for being used to support the adjusting bracket, wherein the adjusting bracket is pivotable relative to the pedestal
And it is scalable, to adjust the angle and height of reinforcement mold outside the blade.
The inside and outside reinforcement mold of wind generator set blade according to the present invention allows to carry out the inside and outside reinforcement of blade in advance
Operation is overlay, does not influence other any process operations completely, modular operational sequence can be carried out after waiting blades molding；Separately
Outside, it since the shape of the inside and outside reinforcement mold of wind generator set blade is corresponding with the blade surface to reinforcement, is greatly improved
The surface smoothness of the inside and outside reinforcement of blade and with type degree, executes heating operation by flexible heater layer therein, is greatly improved
The inside and outside reinforcement charging efficiency of blade and curing efficiency, are greatly improved the production efficiency of entire process.Wind-force according to the present invention
The inside and outside reinforcement mold of generating set blade improves product quality and production efficiency.
Detailed description of the invention
Exemplary embodiment of the present invention is described in detail with reference to the accompanying drawing, the above and other feature of the invention
And advantage will become clearer, in attached drawing:
Fig. 1 is the stream of reinforcement mould preparation method in the wind generator set blade of an exemplary embodiment of the present invention
Journey block diagram；
Fig. 2 is reinforcement mould preparation method in the wind generator set blade using an exemplary embodiment of the present invention
Schematic diagram；
Fig. 3 is the schematic diagram of reinforcement mold in the blade using an exemplary embodiment of the present invention；
Fig. 4 is the stream of the outer reinforcement mould preparation method of wind generator set blade of an exemplary embodiment of the present invention
Journey block diagram；
Fig. 5 is the outer reinforcement mould preparation method of wind generator set blade using an exemplary embodiment of the present invention
Schematic diagram；
Fig. 6 is the schematic diagram using the outer reinforcement mold of blade of an exemplary embodiment of the present invention.
Description of symbols:
2: the inner surface of the blade to reinforcement；2 ': the outer surface of the blade to reinforcement；3, the 3 ': the first layer of cloth；4,4 ': soft
Property heating layer；5,5 ': temperature sensor；6, the 6 ': the second layer of cloth；7,7 ': third layer of cloth；8,8 ': exhaust tube；9,9 ': injected rubber hose；
10,10 ': priming by vacuum auxiliary material；11,11 ': adjusting bracket；12,12 ': pedestal.
Specific embodiment
The embodiment of the present invention is described more fully with now with reference to attached drawing, the invention is shown in the accompanying drawings exemplary
Embodiment.
The wind generator set blade of an exemplary embodiment of the present invention is described in detail below in conjunction with Fig. 1 to Fig. 3
Interior reinforcement mould preparation method.In the wind generator set blade of an exemplary embodiment of the present invention described in the invention
Reinforcement mould preparation method can be used for preparing reinforcement mold in the blade for being suitable for blade inlet edge and/or trailing edge.
In step S1, at least one layer of first layer of cloth 3 is laid on the inner surface 2 of the blade to reinforcement.Specifically, in step
In S1, the corresponding region of reinforcement in leading edge or rear can be first determined according to the blade profile of wind generator set blade, that is, determine wait mend
The inner surface 2 of strong blade；Then, the inner surface 2 for cleaning the blade to reinforcement, recycle Pneumatic grinding machine by blade inlet edge or
The molding seam O of rear handles to obtain Glabrous thorn, pays attention to guaranteeing the region without gas leakage；Then, it can also handle well to reinforcement
Blade inner surface 2 on spray release agent, it is preferable that twice of release agent can be sprayed.After release agent film-forming, wait mend
At least one layer of first layer of cloth 3 is laid on the inner surface 2 of strong blade, the first layer of cloth 3 can be uniaxial cloth or twin shaft cloth, preferably
Ground, the first layer of cloth 3 can be twin shaft cloth (1200g/ ㎡；± 45 °), and it can be laid with two layers of twin shaft cloth, it is used cooperatively simultaneously
A small amount of glue spraying is fixed, and is bonded it with the inner surface 2 of the blade to reinforcement.In order to can also make to prevent the first layer of cloth 3 from falling
It is further fixed with cellotape.Here, the type and quantity of the first layer of cloth 3 are without being limited thereto, conjunction can be chosen according to actual needs
Suitable type layer of cloth and/or the quantity for changing the layer of cloth.
In step S2, flexible heater layer 4 is laid on the first layer of cloth 3.It specifically, can be after being laid with the first layer of cloth 3
Flexible heater layer 4 is laid on first layer of cloth 3, so that the interior reinforcement mold being prepared can have both simultaneously and overlay and heat two kinds
Function.
Since carbon fibre material not only has excellent flexibility and toughness, and heating effect is very good, it is therefore preferable that
Ground, flexible heater layer 4 can be made using carbon fibre material, so that flexible heater layer 4 has excellent flexibility, toughness and heating property
Energy.However, the invention is not limited thereto, flexible heater layer 4 also can use glass fibre and copper mesh is made, or utilize glass fibers
Peacekeeping heating wire is made.
According to an example, one layer of carbon fibre fabric (resistance 3m is 1.6 ohm) can be laid on the first layer of cloth 3 as soft
Property heating layer 4, and can to carbon fibre fabric subregion, and by the end face of each carbon fibre fabric section after subregion using power supply line connect
It connects, and in the pre-buried temperature sensor 5 in its surface, in order to monitor heating temperature in real time by temperature control system.
No matter during priming by vacuum and/or after completing priming by vacuum, interior reinforcement can be controlled by temperature control system
Flexible heater layer 4 in mold executes heating operation.Specifically, during priming by vacuum, it can star flexible heater layer 4 and add
Heat, and micro- heating is executed to control flexible heater layer 5 according to the parameter request that temperature control system inputs, to accelerate resin flowing, from
And accelerate priming by vacuum speed.After completing priming by vacuum, flexible heater layer 4 is started by temperature control system and is heated, and according to
The parameter request of temperature control system input controls flexible heater layer 4, to realize the heating that freely heats up, provides required for solidification
Temperature is fully cured with ensuring in blade that reinforcement or interior reinforcement mold reach.With the flexible heater being set in interior reinforcement mold
Layer executes heating, thus perfectly solves the filling in the presence of the existing technical matters heated by housing mould
When infusing that speed is slow, curing mode is inconvenient, the bad control of solidification temperature, heating efficiency are very low, entire heating process expends
Between it is longer, energy consumption is larger, the more low problems of production efficiency, the producing efficiency of reinforcement in blade can be greatly improved, guarantee
The solidification quality of reinforcement or interior reinforcement mold in blade, is finally reached the purpose of lean production.
In step S3, it is laid on flexible heater layer 4 for the formed in mould material of reinforcement in blade.As an example,
At least one layer of second layer of cloth 6 covering carbon fibre fabric and temperature sensor 5 are first laid on flexible heater layer 4；Then in the second cloth
It is laid with multilayer third layer of cloth 7 on layer 6 and is used as interior reinforcement mould support.Preferably, the second layer of cloth 6 can be uniaxial cloth or twin shaft
Cloth, it is therefore preferable to twin shaft cloth (1200g/ ㎡；± 45 °), and two layers of twin shaft cloth can be laid with；Third layer of cloth 7 can be three axis
Cloth or four axis cloth, preferably four axis cloth (1200g/ ㎡, ± 45/0/90 °), and 3~10 layer of four axis cloth can be laid with.As showing
Example, can be laid with 6~10 layer of four axis cloth.Here, the type and quantity of the second layer of cloth 6 and third layer of cloth 7 are without being limited thereto, it can basis
Actual needs chooses suitable type layer of cloth and/or changes the quantity of the layer of cloth.Then, vacuum can be laid on third layer of cloth 7
Auxiliary material 10 is perfused, specifically, release cloth, hole membrane, flow-guiding screen, two helix tubes, true can be sequentially laid on third layer of cloth 7
Empty film, wherein one in two helix tubes is exhaust tube 8, another is injected rubber hose 9, and 9 quilt of exhaust tube 8 and injected rubber hose
To be connected respectively with guide layer, which can be easier to execute priming by vacuum arrangement.Guide layer can be continuous felt, can increase
Add Resin Flow, and vacuum perfusion process existing the problems such as auxiliary material impression is perfused can be solved.Certainly, the present invention is not limited to
This, can choose material and number of plies of each material of priming by vacuum auxiliary material 10 etc. according to actual needs.
In step S4, vacuumize.On the internal surface by vacuum diaphragm sealing, it will be demoulded with the use of sealing joint strip
Cloth, hole membrane, flow-guiding screen, exhaust tube 8, injected rubber hose 9, third layer of cloth 7, the second layer of cloth 6, flexible heater layer 4, temperature sensor 5,
The inner surface 2 of first layer of cloth 3 and the blade to reinforcement is sealed in interior (referring to fig. 2).Then, execution vacuumizes, and makes vacuum
Degree is between -0.098Mpa~-0.010Mpa, and pressure decline is no more than 2% in pressure maintaining 15 minutes or more and 5 minutes, to protect
Demonstrate,prove the product quality of priming by vacuum.
When pressure maintaining operation meets above-mentioned dwell condition described in step S4, then execute step S5.
In step S5, resin is filled to described using priming by vacuum method and is used in the formed in mould material of reinforcement in blade,
It is heating and curing, removes priming by vacuum auxiliary material 10, to obtain interior reinforcement mold.Specifically, it is executed very using resin by injected rubber hose 9
Sky perfusion.In the present invention, used resin is blade normal perfusion resin, therefore, is set with hand paste is used in the prior art
Rouge executes priming by vacuum and compares, and can solve due to the defects of such as bubble is more caused by carrying out priming by vacuum with hand paste resin
Problem.
In step s 5, after removing priming by vacuum auxiliary material 10, it can also carry out finishing to obtain desired interior reinforcement mold.
As an example, finishing operation can include: cutting overlap (preferably, distance of the overlap apart from heating region is 100mm) removes defeathering
Thorn, polishing finishing, so that surface is smooth；Arc length finishing is carried out according to the internal reinforcement mold of actual requirement, it is expected
Interior reinforcement mold.The interior reinforcement mold has shape corresponding with the shape of inner surface 2 of the blade to reinforcement, and light
Along transition, so that the prefabricated component of reinforcement and the inner surface 2 of the blade to reinforcement match in blade.
An exemplary embodiment of the present invention provides a kind of interior reinforcement mold, and the interior reinforcement mold is including the use of such as
The interior reinforcement mold that reinforcement mould preparation method is prepared in the upper wind generator set blade.
Referring to Fig. 3, the interior reinforcement mold of an exemplary embodiment of the present invention, which may also include, is fixedly connected on the leaf
The adjusting bracket 11 of reinforcement mold and the pedestal 12 for being used to support adjusting bracket 11 in piece, wherein adjusting bracket 11 can relative to pedestal 12
It pivots and scalable, to adjust the angle and height of reinforcement mold in the blade.As an example, adjusting bracket 11 can by with
The region hand paste four axis cloth of multilayer (1200g/ ㎡, ± 45 °/0 °/90 °) that third layer of cloth 7 contacts, thus firmly adjusting bracket 11
It is fixed on third layer of cloth 7, certainly, other modes can also be used by adjusting bracket 11 and be fixedly attached to third layer of cloth 7.Then, pacify
Pedestal 12 is filled, motor can be used in adjusting bracket 11, hydraulic or hinge connection driving method is connected to pedestal 12.Here, adjusting
Frame 11 and pedestal 12 can be using steels to provide enough support strengths.However, the invention is not limited thereto, 11 He of adjusting bracket
Pedestal 12 can also be made of other materials that can provide enough support strengths.
The wind generator set blade of an exemplary embodiment of the present invention is described in detail below in conjunction with fig. 4 to fig. 6
Outer reinforcement mould preparation method.Outside the wind generator set blade of an exemplary embodiment of the present invention described in the invention
Reinforcement mould preparation method can be used for preparing the outer reinforcement mold of blade for being suitable for blade inlet edge and/or trailing edge.
In step S1 ', at least one layer of first layer of cloth 3 ' is laid on the outer surface 2 ' to the blade of reinforcement.Specifically, exist
In step S1, the corresponding region of reinforcement outside leading edge or rear can be first determined according to the blade profile of wind generator set blade, that is, determine
The outer surface 2 ' of blade to reinforcement；Then, the outer surface 2 ' for cleaning the blade to reinforcement, recycles Pneumatic grinding machine by blade
The molding seam O of leading edge or rear handles to obtain Glabrous thorn, pays attention to guaranteeing the region without gas leakage；Then, it can also handle well
Release agent is sprayed on outer surface 2 ' to the blade of reinforcement, it is preferable that can spray twice of release agent.To release agent film-forming
Afterwards, be laid at least one layer of first layer of cloth 3 ' on the outer surface 2 ' to the blade of reinforcement, the first layer of cloth 3 ' can be uniaxial cloth or
Twin shaft cloth, it is preferable that the first layer of cloth 3 ' can be twin shaft cloth (1200g/ ㎡；± 45 °), and it can be laid with two layers of twin shaft cloth,
It is fixed simultaneously with the use of a small amount of glue spraying, is bonded it with the outer surface 2 ' of the blade to reinforcement.In order to prevent the first cloth
Layer 3 ' is fallen, and also cellotape can be used to further fix.Here, the type and quantity of the first layer of cloth 3 ' are without being limited thereto, it can root
Suitable type layer of cloth is chosen according to actual needs and/or changes the quantity of the layer of cloth.
In step S2 ', flexible heater layer 4 ' is laid on the first layer of cloth 3 '.Specifically, after being laid with the first layer of cloth 3 ',
Flexible heater layer 4 ' can be laid on the first layer of cloth 3 ', so that the outer reinforcement mold being prepared can have both simultaneously and overlay and add
Hot two kinds of functions.
Since carbon fibre material not only has excellent flexibility and toughness, and heating effect is very good, it is therefore preferable that
Ground, flexible heater layer 4 ' are made using carbon fibre material, so that flexible heater layer 4 ' has excellent flexibility, toughness and heating
Performance.However, the invention is not limited thereto, flexible heater layer 4 ' also can use glass fibre and copper mesh is made, or utilize glass
Glass fiber and heating wire are made.
According to an example, one layer of carbon fibre fabric (resistance 3m is 1.6 ohm) conduct can be laid on the first layer of cloth 3 '
Flexible heater layer 4 ', and power supply can be used to carbon fibre fabric subregion, and by the end face of each carbon fibre fabric section after subregion
Line connects, and in the pre-buried temperature sensor 5 ' in its surface, in order to monitor heating temperature in real time by temperature control system.
No matter during priming by vacuum and/or after completing priming by vacuum, outer reinforcement can be controlled by temperature control system
Flexible heater layer 4 ' in mold executes heating operation.Specifically, during priming by vacuum, it can star flexible heater layer 4 ' and add
Heat, and micro- heating is executed to control flexible heater layer 5 ' according to the parameter request of temperature control system input, to accelerate resin flowing, from
And accelerate priming by vacuum speed.After completing priming by vacuum, flexible heater layer 4 ' is started by temperature control system and is heated, and according to
The parameter request of temperature control system input controls flexible heater layer 4 ', to realize the heating that freely heats up, provides required for solidification
Temperature, be fully cured with ensuring outside blade that reinforcement or outer reinforcement mold reach.Added with the flexibility being set in outer reinforcement mold
Thermosphere executes heating, in the presence of thus perfectly solving the existing technical matters heated by housing mould
Rate of flooding is slow, curing mode is inconvenient, the bad control of solidification temperature, heating efficiency are very low, entire heating process expends
Time is longer, energy consumption is larger, the more low problems of production efficiency, can greatly improve the producing efficiency of the outer reinforcement of blade, protect
The solidification quality for demonstrate,proving the outer reinforcement of blade or outer reinforcement mold, is finally reached the purpose of lean production.
In step S3 ', it is laid on flexible heater layer 4 ' for the formed in mould material of the outer reinforcement of blade.As an example,
At least one layer of second layer of cloth 6 ' covering carbon fibre fabric and temperature sensor 5 ' are first laid on flexible heater layer 4 '；Then
It is laid with multilayer third layer of cloth 7 ' on two layer of cloths 6 ' and is used as outer reinforcement mould support.Preferably, the second layer of cloth 6 ' can be uniaxial cloth
Or twin shaft cloth, preferably twin shaft cloth (1200g/ ㎡；± 45 °), and two layers of twin shaft cloth can be laid with；Third layer of cloth 7 ' can be
Three axis cloth or four axis cloth, preferably four axis cloth (1200g/ ㎡, ± 45 °/0 °/90 °), and 3~10 layer of four axis cloth can be laid with.
As an example, 6~10 layer of four axis cloth can be laid with.Here, the type and quantity of the second layer of cloth 6 ' and third layer of cloth 7 ' are not limited to
This, can choose suitable type layer of cloth according to actual needs and/or change the quantity of the layer of cloth.It then, can be in third layer of cloth 7 '
Upper laying priming by vacuum auxiliary material 10 ', specifically, can be sequentially laid on third layer of cloth 7 ' release cloth, hole membrane, flow-guiding screen,
Two helix tubes, vacuum diaphragms, wherein one in two helix tubes is exhaust tube 8 ', another is injected rubber hose 9 ', and is evacuated
Pipe 8 ' and injected rubber hose 9 ' are arranged to be connected with guide layer respectively, which can be easier to execute priming by vacuum.Guide layer
It can be continuous felt, Resin Flow can be increased, and vacuum perfusion process existing the problems such as auxiliary material impression is perfused can be solved.
Certainly, the invention is not limited thereto, can choose the material of priming by vacuum auxiliary material 10 ' and the number of plies of each material according to actual needs
Deng.
In step S4 ', vacuumize.Vacuum diaphragm is sealed on the outer surface, will be demoulded with the use of sealing joint strip
Cloth, hole membrane, flow-guiding screen, exhaust tube 8 ', injected rubber hose 9 ', third layer of cloth 7 ', the second layer of cloth 6 ', flexible heater layer 4 ', temperature pass
The outer surface 2 ' of sensor 5 ', the first layer of cloth 3 ' and the blade to reinforcement is sealed in interior (referring to Fig. 5).Then, execution vacuumizes, and
And making vacuum degree between -0.098Mpa~-0.010Mpa, pressure maintaining 15 minutes or more and the decline of 5 minutes external pressures are no more than
2%, to guarantee the product quality of priming by vacuum.
When pressure maintaining operation meets above-mentioned dwell condition described in step S4 ', then execute step S5 '.
In step S5 ', resin is filled to described using priming by vacuum method and is used in the formed in mould material of reinforcement outside blade,
It is heating and curing, removes priming by vacuum auxiliary material 10 ', to obtain outer reinforcement mold.Specifically, it is executed using resin by injected rubber hose 9 '
Priming by vacuum.In the present invention, used resin be blade normal perfusion resin, therefore, in the prior art use hand paste
Resin executes priming by vacuum and compares, and can solve due to the defects of such as bubble is more caused by carrying out priming by vacuum with hand paste resin
The problem of.
In step S5 ', after removing priming by vacuum auxiliary material 10 ', finishing can also carry out to obtain desired outer reinforcement mould
Tool.As an example, finishing operation can include: cutting overlap (preferably, distance of the overlap apart from heating region is 100mm) is gone
Flash removed, polishing finishing, so that surface is smooth；Arc length finishing is carried out according to the external reinforcement mold of actual requirement, to obtain
Desired outer reinforcement mold.The outer reinforcement mold has shape corresponding with the shape of the outer surface 2 ' of the blade to reinforcement
Shape, and fairing transition, so that the outer surface 2 ' of the prefabricated component and the blade to reinforcement of the outer reinforcement of blade matches.
In accordance with an alternative illustrative embodiment of the present invention, a kind of outer reinforcement mold is provided, the outer reinforcement mold includes benefit
The outer reinforcement mold being prepared with reinforcement mould preparation method outside wind generator set blade as described above.
Referring to Fig. 6, outer reinforcement mold in accordance with an alternative illustrative embodiment of the present invention, which may also include, is fixedly connected on institute
State the adjusting bracket 11 ' of the outer reinforcement mold of blade and be used to support the pedestal 12 ' of adjusting bracket 11 ', wherein adjusting bracket 11 ' relative to
Pedestal 12 ' is pivotable and scalable, to adjust the angle and height of reinforcement mold outside the blade.As an example, adjusting bracket 11 '
It can be by pasting four axis cloth of multilayer (1200g/ ㎡, ± 45 °/0 °/90 °) in the region hand that contacts with third layer of cloth 7 ', thus adjusting
Section frame 11 ' is firmly fixed on third layer of cloth 7 ', certainly, other modes can also be used by adjusting bracket 11 ' and be fixedly attached to the
Three layer of cloths 7 '.Then, motor, the connection of hydraulic or hinge connection driving method can be used in mounting seat 12 ', adjusting bracket 11 '
To pedestal 12 '.Here, adjusting bracket 11 ' and pedestal 12 ' are made using steel, to provide enough support strengths.However, this hair
Bright without being limited thereto, adjusting bracket 11 ' and pedestal 12 ' can also be made of other materials that can provide enough support strengths.
Wind generator set blade inside/outside reinforcement mold according to the present invention can be used for realizing the inside and outside reinforcement glass of blade
The problem of cloth is overlay, and not only solves glass-fiber-fabric fold present in prior art, burr, part richness resin；Moreover, can be
The prefabricated component made on blade inside/outside reinforcement mold is attached to the blade to reinforcement by any stage after vane mold matching
It on inside/outside surface, will not influence other processes, i.e., after vane mold matching, can first carry out blade inside/outside reinforcement preparation behaviour
Make, blades can also be waited to be transferred in subsequent process, then carry out blade inside/outside first by blade from molding inside mold
Reinforcement preparation manipulation to realize the modularization making of blade inside/outside reinforcement, while also eliminating existing priming by vacuum work
Skill, which exists, occupies the problems such as mold time is longer, and the process operations such as worker's laying glass-fiber-fabric and envelope vacuum pressure maintaining are difficult.In addition, by
It is corresponding with the blade surface to reinforcement in the shape of wind generator set blade inside/outside reinforcement mold, it is greatly improved blade
The surface smoothness of inside/outside reinforcement and with type degree, executes heating operation by flexible heater layer therein, is greatly improved blade
Inside/outside reinforcement charging efficiency and curing efficiency are greatly improved the production efficiency of entire process.
Therefore, wind generator set blade inside/outside reinforcement preparation method according to the present invention can carry out overlaying operation in advance
And heating function is provided, it will not influence other processes, and blade inside/outside reinforcement for leading edge and/or rear can be improved
Surface smoothness, with type degree and curing efficiency, product quality and improve production efficiency to can guarantee.
Although specifically illustrating and describing the present invention referring to exemplary embodiment of the present invention, this field is common
It is to be understood by the skilled artisans that in the case where not departing from the spirit and scope of the present invention being defined by the claims, it can be to it
The various changes of carry out form and details.
Claims (14)
1. reinforcement mould preparation method in a kind of wind generator set blade, which is characterized in that the wind generator set blade
Interior reinforcement mould preparation method the following steps are included:
1) at least one layer of first layer of cloth (3) is laid on the inner surface (2) of the blade to reinforcement；
2) flexible heater layer (4) are laid on first layer of cloth (3)；
3) it is laid on the flexible heater layer (4) for the formed in mould material of reinforcement in blade；
4) it vacuumizes；
5) resin is filled to described using priming by vacuum method and is used in the formed in mould material of reinforcement in blade, is heating and curing and shape
At interior reinforcement mold.
2. reinforcement mould preparation method in wind generator set blade as described in claim 1, which is characterized in that the flexibility
Heating layer (4) is made using carbon fibre material or glass fibre and copper mesh or glass fibre and heating wire.
3. such as reinforcement mould preparation method in wind generator set blade of any of claims 1-2, feature exists
In being embedded with temperature sensor (5) on the flexible heater layer (4).
4. reinforcement mould preparation method in wind generator set blade as claimed in claim 3, which is characterized in that the step
3) include: that at least one layer of second layer of cloth (6) is laid on the flexible heater layer (4), with cover the flexible heater layer (4) and
The temperature sensor (5).
5. reinforcement mould preparation method in wind generator set blade as claimed in claim 4, which is characterized in that the step
3) further include: be laid with multilayer third layer of cloth (7) on second layer of cloth (6).
6. reinforcement mould preparation method in wind generator set blade as claimed in claim 5, which is characterized in that described first
Layer of cloth (3) and second layer of cloth (6) are uniaxial cloth or twin shaft cloth, and the third layer of cloth (7) is three axis cloth or four axis cloth.
7. a kind of interior reinforcement mold, which is characterized in that the interior reinforcement mold is including the use of any one of such as claim 1-6 institute
The interior reinforcement mold that reinforcement mould preparation method is prepared in the wind generator set blade stated.
8. a kind of outer reinforcement mould preparation method of wind generator set blade, which is characterized in that the wind generator set blade
Outer reinforcement mould preparation method the following steps are included:
1) at least one layer of first layer of cloth (3 ') is laid on the outer surface (2 ') of the blade to reinforcement；
2) flexible heater layer (4 ') are laid on first layer of cloth (3 ')；
3) it is laid on the flexible heater layer (4 ') for the formed in mould material of the outer reinforcement of blade；
4) it vacuumizes；
5) resin is filled to described using priming by vacuum method and is used in the formed in mould material of reinforcement outside blade, is heating and curing and shape
At outer reinforcement mold.
9. the outer reinforcement mould preparation method of wind generator set blade as claimed in claim 8, which is characterized in that the flexibility
Heating layer (4 ') is made using carbon fibre material or glass fibre and copper mesh or glass fibre and heating wire.
10. the outer reinforcement mould preparation method of wind generator set blade as described in any one of claim 8-9, feature exist
In being embedded with temperature sensor (5 ') on the flexible heater layer (4 ').
11. the outer reinforcement mould preparation method of wind generator set blade as claimed in claim 10, which is characterized in that the step
3) rapid includes: that at least one layer of second layer of cloth (6 ') is laid on the flexible heater layer (4 '), to cover the flexible heater layer
(4 ') and the temperature sensor (5 ').
12. the outer reinforcement mould preparation method of wind generator set blade as claimed in claim 11, which is characterized in that the step
It is rapid 3) further include: on second layer of cloth (6 ') be laid with multilayer third layer of cloth (7 ').
13. the outer reinforcement mould preparation method of wind generator set blade as claimed in claim 12, which is characterized in that described the
One layer of cloth (3 ') and second layer of cloth (6 ') are uniaxial cloth or twin shaft cloth, and the third layer of cloth (7 ') is three axis cloth or four axis
Cloth.
14. a kind of outer reinforcement mold, the outer reinforcement mold is including the use of the wind-force as described in any one of claim 8-13
The outer reinforcement mold that the outer reinforcement mould preparation method of generating set blade is prepared.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711475449.3A CN109986813A (en) | 2017-12-29 | 2017-12-29 | Blade inner and outer reinforcing die of wind generating set and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711475449.3A CN109986813A (en) | 2017-12-29 | 2017-12-29 | Blade inner and outer reinforcing die of wind generating set and preparation method thereof |
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| CN109986813A true CN109986813A (en) | 2019-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711475449.3A Pending CN109986813A (en) | 2017-12-29 | 2017-12-29 | Blade inner and outer reinforcing die of wind generating set and preparation method thereof |
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Cited By (1)
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| CN108327315A (en) * | 2018-05-18 | 2018-07-27 | 连云港中复连众复合材料集团有限公司 | The production method of reinforcement mold outside blade front and rear edge with heating function |
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