CN103042701B - Integrated formation device and method for wind power blade - Google Patents
Integrated formation device and method for wind power blade Download PDFInfo
- Publication number
- CN103042701B CN103042701B CN201210581854.4A CN201210581854A CN103042701B CN 103042701 B CN103042701 B CN 103042701B CN 201210581854 A CN201210581854 A CN 201210581854A CN 103042701 B CN103042701 B CN 103042701B
- Authority
- CN
- China
- Prior art keywords
- control valve
- resin
- vacuum
- core
- pipeline
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The invention relates to an integrated formation device and an integrated formation method for a horizontal shaft wind power blade. The device comprises a vacuum pumping system, pressurizing equipment, a resin defoaming system, a resin supply system and a resin collecting system. When the wind power blade is manufactured, integrated formation is realized by a positive pressure auxiliary vacuum perfusion mode, so that the defects of the traditional vacuum perfusion process are overcome, the blade-formation product quality is improved, and various disadvantages and risks caused by that the traditional process shell adopts adhesive to adhere are avoided.
Description
Technical field
The present invention relates to a kind of wind electricity blade integrated molding device and method, belong to the key components and parts of wind power plant.
Background technology
Along with becoming increasingly conspicuous of the energy and environmental problem, wind-power electricity generation obtains global concern and great attention as a kind of clean energy resource and regenerative resource.Along with the input of various countries' research and development, wind power technology also achieves significant progress, and Wind turbines single-machine capacity constantly increases.Many MW class from the multikilowatt at initial stage to today, length of blade also reaches current more than 80 meter from several meters.Business-like most linear leaf has reached 61.5 meters at present, and larger longer blade is also in research and development.Maximization has become an inevitable trend, but the transportation problem brought and high freight charges also cannot bear.
The wind electricity blade forming method of prior art or device are all adopt traditional vacuum perfusion process, fail to solve some key issues such as vacuum pressure is little, rate of flooding is slow, Forming Quality is poor.
Traditional wind electricity blade is all first produce suction surface and pressure face housing respectively, after front solidification on stationary plane one or two shear web bonding, use bonding agent two demifacet case bondings to be got up at the top of front trailing edge and shear web afterwards, then shaping blade is made in the punching of blade root ends cutting.Housing generally adopts priming by vacuum or prepeg process to make, and shear web generally adopts priming by vacuum, hand is stuck with paste or winding process is prefabricated.
The disadvantage of traditional blades technique is that upper-lower casing (comprising shear web) connects by bonding agent completely, easily brings a lot of problem.Bonding agent itself is from wide significance, and be a kind of full-bodied pure resin, what have adds some grade chopped strands or other fillers, but compares fibre-reinforced laminate, and performance rate difference is very large.And bonding agent is a kind of fragile material, toughness and poor fatigue properties, the bonding region of blade is caused mostly to be the performance weakness zone of blade.Also, often there is crackle in blade bonding agent in wind field running to actual conditions, bonding plane ftractures and the phenomenon of stripping.
Traditional vacuum perfusion process, owing to depending on the effect of negative pressure of vacuum, pressure reduction bad (being no more than an atmospheric pressure), so cause the speed of filling process slow, and can occur to inhale the mass defects such as not saturating.In addition, also need to add the permeable mediums such as continuous felt in the place that fibrous reinforcing material number is thick, ensure that reinforcing material can soak into, but the permeable mediums such as continuous felt itself are porous materials, easy gathering bubble, gel content is also large, and these unfavorable factors meeting weakened layer plywood interlayer shear ability, reduces the bearing capacity of blade in actual motion.In addition, whole filling process height relies on the flow front of the pressure promotion resin of negative pressure of vacuum, high to the requirement of vacuum system, generally needs use two to overlap vacuum system and prevents perfusion and cure stage from revealing the mass defect caused.
Traditional RTM technique, uses resin injector, at higher direct draught, is under high pressure flowed by resin liquid and soak into reinforcing fiber materials.Whole system efficiency is high, but the design of whole mold system is complicated, and hardware input cost is high.Simultaneously also very high to the requirement of resin injector, the pressure that mould bears is large, and rigidity requirement is high, and cost is high.So RTM technique is generally suitable for middle-size and small-size composite material component, the moulding process on wind electricity blade is applied limited.
Summary of the invention
For the shortcoming and defect of prior art, the present invention aims to provide a kind of wind electricity blade integrated molding device and method, with the key issue such as in the wind electricity blade forming method solving prior art, rate of flooding is slow, Forming Quality is poor, production efficiency is low, manufacturing cost is high.
The technical scheme that the present invention adopts for its technical problem of solution is: a kind of wind electricity blade integrated molding device, and described device comprises vacuum-pumping system, pressurized equipment, resin defoaming system, resin feed system and resin trap system, it is characterized in that:
The control valve I 46 that described vacuum-pumping system comprises vavuum pump 47, vacuum pipe 45 and is positioned on described vacuum pipe I 45, described vacuum pipe I 45 one end is connected with vavuum pump 47, the other end is connected with the sealed air system of described wind-powered blade mold die cavity, for extracting the air of described die cavity inside before perfusion resin out, control valve I 46 is opened, closed control valve I 46 at the end of bleeding when bleeding;
Described resin defoaming system comprises vacuum defoaming box 29, vacuum pipe II 30, be positioned at the control valve II 31 on described vacuum pipe II 30, discharge duct 32, be positioned at the control valve III 33 on described discharge duct 32, breather line 35, be positioned at the control valve IV 34 on described breather line 35, gummosis pipeline I 42, be positioned at the control valve V 41 of described gummosis pipeline 42, described vacuum pipe II 30, discharge duct 32 is arranged at vacuum defoaming box 29 top, described breather line 35 is communicated with the top of storage glue tank 38 and the top of described vacuum defoaming box 29, described gummosis pipeline 42 is communicated with the bottom of described storage glue tank 38 and the bottom of described vacuum defoaming box 29, when described resin defoaming system carries out vacuum froth breaking, open control valve II 31, closed control valve III 33, control valve IV 34, control valve V 41, described vacuum pipe II 30 accesses described vacuum-pumping system,
Described resin feed system comprises described storage glue tank 38, main confession sebific duct road 44, is positioned at the described main control valve VII 37 supplying the control valve VI 43 on sebific duct road 44, pressure pipeline 36, be positioned at described pressure pipeline 36, the described main sebific duct road 44 that supplies is connected with the injecting glue pipeline 16 in described wind-powered blade mold die cavity, and described pressure pipeline 36 is connected with pressurized equipment; When perfusion resin is carried out to described wind electricity blade, first opening controlling valve IV 34, control valve V 41 and control valve III 33, closed control valve II 31, control valve VI 43, control valve VIII 39, resin in vacuum defoaming box 29 flows in described storage glue tank 38 by described gummosis pipeline 42 under gravity, and the air simultaneously in described storage glue tank 38 is emitted by breather line 35, gas exhaust piping 32; Closed control valve IV 34, control valve V 41 afterwards, opening controlling valve VII 37, control valve VI 43, the resin in storage glue tank 38 adds pressure by the described main injecting glue pipeline 16 be supplied to for sebific duct road 44 in described wind-powered blade mold die cavity at pressurized equipment;
Described resin trap system comprises seal case 27, is arranged in the resin trap 28 of seal case 27, go back to sebific duct road 23, be positioned at described go back to sebific duct road 23 control valve X24, vent line 26, be positioned at the control valve Ⅸ 25 of described vent line 26, one end, described time sebific duct road 23 passes into resin trap 28, the other end is connected with the plastic pipe that returns at described wind-powered blade mold trailing edge place, described vent line 26 one end is communicated with seal case 27, and the other end is connected with vavuum pump; When perfusion resin is carried out to described wind electricity blade, open control valve X24, control valve Ⅸ 25, connect vavuum pump, when the flow fronts of resin arrives the trailing edge of mould, resin overflows and enters described go back to sebific duct road 23, enter in resin trap 28, when having resin flow fashionable in all relevant resin trap pipelines, closed control valve VI 43, stops injecting glue, closed control valve Ⅸ 25, prevents resin to be too much drawn out of simultaneously.
Preferably, described vacuum pipe I 45 the other end be positioned at the pipeline opening that described wind-powered blade mold leading edge turns on mould limit and be connected.
Preferably, described vacuum defoaming box 29 is arranged in the position higher than described storage glue tank 38.
Preferably, described resin feed system also comprises confession sebific duct road 40 for subsequent use and is positioned at the described control valve VIII 39 for sebific duct road 40 for subsequent use, the described sebific duct road 40 that supplies for subsequent use is connected with described injecting glue pipeline 16 when needed or is connected with the injecting glue pipeline for subsequent use in described wind-powered blade mold die cavity, opening controlling valve VIII 39 when needing, is supplied to the resin in storage glue tank 38 in described wind-powered blade mold die cavity for sebific duct road 40 by for subsequent use.
Preferably, when described vacuum-pumping system carries out vacuum suction, open control valve X24, control valve Ⅸ 25, described vent line 26 connects vavuum pump simultaneously, carries out auxiliary vacuumizing to described vacuum-pumping system, after vacuumizing, and closed control valve Ⅸ 25.
According to a further aspect in the invention, additionally provide a kind of wind electricity blade integrated molding method, use the wind electricity blade integrated molding device that the present invention is above-mentioned, described wind electricity blade comprises upper shell and lower house, adopt fibre reinforced matrix material, mould for shaping described wind electricity blade comprises upper shell former and lower house former, it is characterized in that, described method comprises the steps:
S1. lower house raw material lay: lay exterior skin smeared releasing agent on the inner surface of described lower house former after, described exterior skin is larger than the inner surface of described lower house former, exceeds the die parting line of the leading edge of described lower house former and the flange at trailing edge place; Then on described exterior skin, sandwich material is laid; On described sandwich material, lay inside panel afterwards, described inside panel part or entirety exceed the die parting line of the leading edge of described lower house former and the flange at trailing edge place; Lay release cloth on described inside panel afterwards; Finally at the leading edge locus lay injecting glue pipeline of described lower house former;
S2. shear web and core is placed: first on the release cloth of described inside panel, at least one shear web is set, in the left and right sides of web, core is set respectively afterwards, the fiber cloth that web both sides cover needs to extend on the top and bottom of core, overlaps respectively with the top and bottom of described inside panel, core; Covering vacuum bag again outside each described core;
S3. lay upper shell material: lay upper shell inside panel above the fiber laying exceeding the die parting line of the leading edge of described lower house former and the flange at trailing edge place in the fiber cloth laying exceeded in each described core, shear web and both sides thereof and step S1, then lay sandwich material on upper shell inside panel, lay upper shell exterior skin afterwards, covers inside panel and sandwich material;
S4. upper-lower casing matched moulds: after releasing agent smeared by upper shell former, upset upper shell former is placed on above described upper shell exterior skin, and makes upper and lower casing former accurate fit compact siro spinning technology together, forms airtight die cavity;
S5. the preparation before priming by vacuum: (1) vacuumizes, uses vacuum-pumping equipment to extract the air of described die cavity inside out; (2) carry out defoaming treatment to resin, resin is put into vacuum defoaming device, vacuum defoaming device connects vacuum-pumping equipment, vacuumizes defoaming treatment to resin;
S6. wind electricity blade integration form: resin is injected in the region between described upper and lower casing former and each core by described injecting glue pipeline pressurization;
S7. blade poured into and be heating and curing reach curing degree that regulation requires after turnover mould carry out molding, and remove each described core.
Preferably, each described core is made up of core and the air bag that is wrapped in its outer surface, the outside covering vacuum bag again of described air bag, in step s 5, certain pressure can be filled with as required in described air bag, make each fiber laying and sandwich material fit tightly on the inner surface of described upper and lower casing former.
Preferably, in step S2, two shear web are set at regular intervals, leading edge segments core, interlude core and trailing edge section core are set respectively in the left and right sides of described two shear web; Be Balsa wood or PVC material corresponding to the leading edge segments of the upper and lower casing of leading edge segments core, interlude core and trailing edge section core, the sandwich material at trailing edge section place, the sandwich material of interlude is glass fibre or its prefabrication or carbon fiber or its prefabrication.
Preferably, in step S2, open up to arranging PVC foam or glass reinforced plastic support block, to locate and to support shear web in the corner that shear web contacts with inside panel along blade.
Preferably, the core of described shear web is Balsa wood, PVC or other hard foams, and the fiber cloth of the shaping trailing web both sides of suction and core form sandwich structure.
Preferably, according to the needs of blade aerodynamic profile and technique convenience, described leading edge segments core, interlude core and trailing edge section core are each can be independent entirety, or is assembled by removable many parts and form, especially trailing edge section core, its geometry may have bending part; The composition material of each core is identical, for forming at the outside of wooden or foamed material parcel silicon rubber or other rubber-like elastic material, wherein said wooden or foamed material Digit Control Machine Tool, Linear cut or other processing modes make the profile close with described mold cavity surfaces.
Preferably, described exterior skin is composite fibre layer, and described composite fibre layer is glass fabric, carbon fibre fabric.
Preferably, except except the leading edge locus lay injecting glue pipeline of described lower house former, also need at non-leading edge locus lay injecting glue pipeline for subsequent use.
Preferably, in order to before increasing described wind electricity blade, the intensity of trailing edge, the exterior skin of upper and lower casing and leading edge, trailing edge exceed the fiber of die parting line part can juxtaposition lay.
Preferably, in described upper and lower casing former, be laid with heating system, and can need regulate and control temperature according to technical process.
Wind electricity blade integrated molding apparatus and method of the present invention, compared with the existing technology, have following significant advantage:
1. the present invention solves the integrated molding problem of wind electricity blade, and adopts malleation assisted vacuum instillation process, optimizes Conventional processing methods, enhances productivity and blade end product quality, can also reduce costs.
2. what the present invention adopted is malleation assisted vacuum instillation process, and shaped device system can utilize existing equipment transformation, without the need to special glue-injecting pump.Lower malleation, in conjunction with negative pressure of vacuum, can effectively improve injecting glue speed, shortens fabrication cycle.In the process of solidification, also keep malleation, prevent from revealing the mass defect brought.Owing to using lower malleation, less demanding to soft tire core, cost is low.In addition, the size of malleation can be regulated according to the fiber number of plies of laminate, cancel the permeable mediums such as continuous felt, save material usage, reduce costs, can also improve shaping after leaf quality, improve the bearing capacity of blade.
Accompanying drawing explanation
Fig. 1 is the integrated figure of malleation assisted vacuum of the present invention perfusion integrated molding.
Detailed description of the invention
Below, will by reference to the accompanying drawings with concrete case study on implementation, detailed details is carried out to the present invention and sets forth.Should understand these embodiments to be only not used in for illustration of the present invention and to limit the scope of the invention, after having read the present invention, the amendment of those skilled in the art to the various equivalent form of value of the present invention has all fallen within the application's claims limited range.
Fig. 1 is the integrated figure of the malleation assisted vacuum perfusion integrated molding that the present invention adopts.Former 1,21 provides the mould producing blade upper and lower casing, in leaf production process, located by mould truss and turning on mould limit, locking device tightens together formation entirety, containing water heating or electric heating system inside mould, and be equipped with temperature control system and can regulate temperature.
Wind electricity blade integrated molding shaped device of the present invention, described device comprises vacuum-pumping system, pressurized equipment, resin defoaming system, resin feed system and resin trap system.
The control valve I 46 that described vacuum-pumping system comprises vavuum pump 47, vacuum pipe I 45 and is positioned on described vacuum pipe I 45, described vacuum pipe I 45 one end is connected with vavuum pump 47, the other end is connected with the sealed air system of described wind-powered blade mold die cavity, for extracting the air of described die cavity inside before perfusion resin out, control valve I 46 is opened, closed control valve I 46 at the end of bleeding when bleeding.
Described resin defoaming system comprises vacuum defoaming box 29, vacuum pipe II 30, be positioned at the control valve II 31 on described vacuum pipe II 30, discharge duct 32, be positioned at the control valve III 33 on described discharge duct 32, breather line 35, be positioned at the control valve IV 34 on described breather line 35, gummosis pipeline I 42, be positioned at the control valve V 41 of described gummosis pipeline 42, described vacuum pipe II 30, discharge duct 32 is arranged at vacuum defoaming box 29 top, described breather line 35 is communicated with the top of storage glue tank 38 and the top of described vacuum defoaming box 29, described gummosis pipeline 42 is communicated with the bottom of described storage glue tank 38 and the bottom of described vacuum defoaming box 29, when described resin defoaming system carries out vacuum froth breaking, open control valve II 31, closed control valve III 33, control valve IV 34, control valve V 41, described vacuum pipe II 30 accesses described vacuum-pumping system.
Described resin feed system comprises described storage glue tank 38, main confession sebific duct road 44, is positioned at the described main control valve VII 37 supplying the control valve VI 43 on sebific duct road 44, pressure pipeline 36, be positioned at described pressure pipeline 36, the described main sebific duct road 44 that supplies is connected with the injecting glue pipeline 16 in described wind-powered blade mold die cavity, and described pressure pipeline 36 is connected with pressurized equipment; When perfusion resin is carried out to described wind electricity blade, first opening controlling valve IV 34, control valve V 41 and control valve III 33, closed control valve II 31, control valve VI 43, control valve VIII 39, resin in vacuum defoaming box 29 flows in described storage glue tank 38 by described gummosis pipeline 42 under gravity, and the air simultaneously in described storage glue tank 38 is emitted by breather line 35, gas exhaust piping 32; Closed control valve IV 34, control valve V 41 afterwards, opening controlling valve VII 37, control valve VI 43, the resin in storage glue tank 38 adds pressure by the described main injecting glue pipeline 16 be supplied to for sebific duct road 44 in described wind-powered blade mold die cavity at pressurized equipment.
Described resin trap system comprises seal case 27, is arranged in the resin trap 28 of seal case 27, go back to sebific duct road 23, be positioned at described go back to sebific duct road 23 control valve X24, vent line 26, be positioned at the control valve Ⅸ 25 of described vent line 26, one end, described time sebific duct road 23 passes into resin trap 28, the other end is connected with the plastic pipe that returns at described wind-powered blade mold trailing edge place, described vent line 26 one end is communicated with seal case 27, and the other end is connected with vavuum pump; When perfusion resin is carried out to described wind electricity blade, open control valve X24, control valve Ⅸ 25, connect vavuum pump, when the flow fronts of resin arrives the trailing edge of mould, resin overflows and enters described go back to sebific duct road 23, enter in resin trap 28, when having resin flow fashionable in all relevant resin trap pipelines, closed control valve VI 43, stops injecting glue, closed control valve Ⅸ 25, prevents resin to be too much drawn out of simultaneously.
Preferably, described vacuum pipe I 45 the other end be positioned at the pipeline opening that described wind-powered blade mold leading edge turns on mould limit and be connected.
Preferably, described vacuum defoaming box 29 is arranged in the position higher than described storage glue tank 38.
Preferably, described resin feed system also comprises confession sebific duct road 40 for subsequent use and is positioned at the described control valve VIII 39 for sebific duct road 40 for subsequent use, the described sebific duct road 40 that supplies for subsequent use is connected with described injecting glue pipeline 16 when needed or is connected with the injecting glue pipeline for subsequent use in described wind-powered blade mold die cavity, opening controlling valve VIII 39 when needing, is supplied to the resin in storage glue tank 38 in described wind-powered blade mold die cavity for sebific duct road 40 by for subsequent use.
Preferably, when described vacuum-pumping system carries out vacuum suction, open control valve X24, control valve Ⅸ 25, described vent line 26 connects vavuum pump simultaneously, carries out auxiliary vacuumizing to described vacuum-pumping system, after vacuumizing, and closed control valve Ⅸ 25.
Introduce the processing step being suitable for device of the present invention and preparing wind electricity blade below.
The first step of integrated forming technique is lower house raw material laies.Start to spread exterior skin 2 after the cloudy shell 1 of lower house has smeared releasing agent, these glass fabrics may comprise some technologic felts, or carbon fibre fabric, goods.This part fabric all needs reserved part to exceed the die parting line of mould flange in a part for leading edge and trailing edge, and after core 18 and 20 is placed, lay is on upper shell.Then lay Balsa wood or leading edge segments, the trailing edge section sandwich material 3 and 5 of PVC material on exterior skin 2, and the interlude sandwich material 4 (or their prefabrication) of glass or carbon fibre.The fibrous material of inside panel 6 is consistent with the laying method of exterior skin 1, and according to design needs, part or entirety exceed the die parting line of leading edge and trailing edge.For the ease of removing the auxiliary material of vacuum before the demoulding, lay release cloth after the complete main material of lay.Then at leading edge locus lay injecting glue pipeline 16, according to structure laying and the water conservancy diversion needs of blade, the injecting glue pipeline that lay also may be needed such in other positions, or some injecting glue pipelines for subsequent use of lay, in order to some cases of emergency.
Second step places core and shear web.As Fig. 1, on lower house inside panel 6, place leading edge segments, interlude, trailing edge section core 18,19 and 20, shear web 11 and 13.According to the needs of blade aerodynamic profile and technique convenience, core 18,19 and 20 each can be independent entirety, or assembled by removable many parts and form, especially trailing edge section core 20, geometry may have bending part.The composition material of each core is the same, if leading edge segments core 18 is exactly form at the outside of wooden or foamed material parcel silicon rubber or other rubber-like elastic materials, wherein wooden or foamed material Digit Control Machine Tool, Linear cut or other processing modes make the profile close with surface of internal cavity.After treating upper shell lay, by bladder, fiber and sandwich material is made to be attached to upper shuttering die cavity inner surface figuration.Outside core, the outside of silicon rubber covering vacuum bag again, vacuumizes needs before follow-up priming by vacuum.The core of shear web 11 and 13 can be Balsa, PVC or other hard foams, and be all coated with fiber cloth in the both sides of web, the shaping rear and core formation sandwich structure of suction, and the fiber cloth of both sides needs to extend on the top and bottom of core, namely on lower house inside panel 6 and core 18,19 and 20.According to technique needs, PVC foam or glass reinforced plastic support block 12 can be placed in blade exhibition to suitable position, play the effect of location and support webs.
3rd step is lay upper shell material.As Fig. 1, next be the fiber laying that exceeds in leading edge segments, interlude, trailing edge section core 18,19,20 and shear web 11,13 both sides and front trailing edge exceed die parting line fiber laying above the fibrous material of lay upper shell inside panel 7, the same with the fiber placement mode of lower house inside panel 6.Then lay Balsa wood or sandwich material 8 and 14, glass or the carbon fibre 10 (or their prefabrication) of PVC material on upper shell inside panel 7.Then also similar exterior skin 1, lay upper shell exterior skin 15, covers upper shell inside panel 7, sandwich material 8,14 and 10.In order to increase the intensity of front trailing edge, exterior skin and leading edge, trailing edge exceed the fiber of die parting line part can juxtaposition lay.
4th step is upper-lower casing matched moulds.After the complete releasing agent of upper shell former 21 demoulding, use hydraulic overturn system to be placed on above upper shell exterior skin 15, by mould truss, the positioning and locking device turned on mould limit etc. make upper and lower surface position accurately, coordinate accurate linking together.Upper-lower casing simultaneously has heating system, and can need regulate and control temperature according to technical process.
5th step is the preparation before priming by vacuum.This step is divided into two parts, and Part I vacuumizes.The upper-lower casing die cavity of whole blade is by fibrage 2,4,6,7,10,15, and sandwich material 3,5,8,11,13,14, injecting glue pipeline 16 and some other auxiliary material composition, the inside is full of air.Vacuum-pumping system (45,46,47) is connected with the sealed air system of die cavity, extracts the air of die cavity inside out.The pipeline opening that vacuum pipe I 45 and mould turn on mould limit is connected, and whole pumped vacuum systems is controlled by control valve I 46.Together with fiber cloth and core compress along with the extension of flexible vacuum bag again.17 and 22 is encapsulants that mould turns on mould limit, within one week, seals mould around mould, to ensure good vacuum.If want to obtain the better laminate of compactness, or cannot leak source be found after generation vacuum leak, certain pressure can be filled with as required in Silicon rubber inflatable bag, fiber cloth be fitted more closely knit.Also can connect vavuum pump on the vent line 26 of resin trap system (23,24,25,26,27,28), open control valve X24, control valve Ⅸ 25, auxiliary vacuumizing is carried out to die cavity, after vacuumizing, closed control valve Ⅸ 25.
Part II is the defoaming treatment of resin.29,30,31,32,33,34,41,42 is resin defoaming systems.First ensure that control valve IV 34, control valve V 41 and control valve III 33 are in closed condition, then put into vacuum defoaming box 28 by resin, vacuum pipe II 30 accesses pumped vacuum systems, opens control valve II 31 and carries out vacuumizing defoaming treatment.
6th step is integrated form.When completing above after several step, just integrated form can be carried out to subsection blade.Open valve control valve V 41, control valve IV 34, control valve VI 43, control valve VII 37, wherein pressure pipeline 36 accesses pressurized equipment.Control valve VIII 39 is generally in closed condition, for sebific duct road 40 at the moment access injecting glue pipeline 16 needed or other injecting glue pipelines for subsequent use, and opening controlling valve VIII 39 while of after access.Opening controlling valve III 33 while opening controlling valve V 41, control valve IV 34, while the resin of defoaming box 29 flows into and stores up glue tank 38, is emitted the air of storage glue tank 38 by gas exhaust piping 32.Control valve VI 43 can regulate main for the resin flow in sebific duct road 44 and injecting glue pipeline 16 and flow rate.Resin is via the hole on injecting glue pipeline 16, gap, and the cutting seam on core 3,5,8 and 14, the braiding gap etc. between the fibre bundle of fiber cloth, the flow fronts of resin arrives each position of blade gradually.When flow fronts arrives the trailing edge of mould, resin overflows and enters gummosis pipeline 23, enters in resin trap 28.When having resin flow fashionable in all relevant resin trap pipelines, closed control valve VI 43, stops injecting glue.Whole solidification process being continued because vacuumize, in order to prevent resin to be too much drawn out of, now also should close the control valve X24 of resin trap system.
Blade has poured into and has been heating and curing, and after reaching the curing degree of regulation requirement, turnover mould carries out molding.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within the utility model/scope of invention.
Claims (16)
1. a wind electricity blade integrated molding device, described device comprises vacuum-pumping system, pressurized equipment, resin defoaming system, resin feed system and resin trap system, it is characterized in that:
The control valve I that described vacuum-pumping system comprises vavuum pump, vacuum pipe I and is positioned on described vacuum pipe I, described vacuum pipe I one end is connected with vavuum pump, the other end is connected with the sealed air system of described wind-powered blade mold die cavity, for extracting the air of described die cavity inside before perfusion resin out, control valve I is opened, closed control valve I at the end of bleeding when bleeding;
Described resin defoaming system comprises vacuum defoaming box, vacuum pipe II, be positioned at the control valve II on described vacuum pipe II, discharge duct, be positioned at the control valve III on described discharge duct, breather line, be positioned at the control valve IV on described breather line, gummosis pipeline I, be positioned at the control valve V of described gummosis pipeline, described vacuum pipe II, discharge duct is arranged at vacuum defoaming box top, described breather line is communicated with the top of storage glue tank and the top of described vacuum defoaming box, the bottom of glue tank and the bottom of described vacuum defoaming box is stored up described in described gummosis pipeline connection, when described resin defoaming system carries out vacuum froth breaking, open control valve II, closed control valve III, control valve IV, control valve V, described vacuum pipe II accesses described vacuum-pumping system,
Described resin feed system comprises described storage glue tank, main confession sebific duct road, is positioned at the described main control valve VII supplying the control valve VI on sebific duct road, pressure pipeline, be positioned at described pressure pipeline, the described main sebific duct road that supplies is connected with the injecting glue pipeline in described wind-powered blade mold die cavity, and described pressure pipeline is connected with pressurized equipment; When perfusion resin is carried out to described wind electricity blade, first opening controlling valve IV, control valve V and control valve III, closed control valve II, control valve VI, control valve VIII, resin in vacuum defoaming box flows in described storage glue tank by described gummosis pipeline under gravity, and the air simultaneously in described storage glue tank is emitted by breather line, gas exhaust piping; Closed control valve IV, control valve V afterwards, opening controlling valve VII, control valve VI, the resin in storage glue tank adds pressure by the described main injecting glue pipeline be supplied to for sebific duct road in described wind-powered blade mold die cavity at pressurized equipment;
Described resin trap system comprises seal case, is arranged in the resin trap of seal case, go back to sebific duct road, be positioned at described go back to sebific duct road control valve X, vent line, be positioned at the control valve Ⅸ of described vent line, one end, described time sebific duct road passes into resin trap, the other end is connected with the plastic pipe that returns at described wind-powered blade mold trailing edge place, described vent line one end is communicated with seal case, and the other end is connected with vavuum pump; When perfusion resin is carried out to described wind electricity blade, open control valve X, control valve Ⅸ, connect vavuum pump, when the flow fronts of resin arrives the trailing edge of mould, resin overflows and enters described go back to sebific duct road, enter in resin trap, when having resin flow fashionable in all relevant resin trap pipelines, closed control valve VI, stops injecting glue, closed control valve Ⅸ, prevents resin to be too much drawn out of simultaneously.
2. integrated molding device according to claim 1, is characterized in that: the other end of described vacuum pipe I be positioned at the pipeline opening that described wind-powered blade mold leading edge turns on mould limit and be connected.
3. integrated molding device according to claim 1, is characterized in that: described vacuum defoaming box is arranged in the position higher than described storage glue tank.
4. integrated molding device according to claim 1, it is characterized in that: described resin feed system also comprises confession sebific duct road for subsequent use and is positioned at the described control valve VIII for sebific duct road for subsequent use, the described sebific duct road that supplies for subsequent use is connected with described injecting glue pipeline when needed or is connected with the injecting glue pipeline for subsequent use in described wind-powered blade mold die cavity, opening controlling valve VIII when needing, is supplied to the resin in storage glue tank in described wind-powered blade mold die cavity for sebific duct road by for subsequent use.
5. integrated molding device according to claim 1, it is characterized in that: when described vacuum-pumping system carries out vacuum suction, open control valve X, control valve Ⅸ simultaneously, described vent line connects vavuum pump, auxiliary vacuumizing is carried out to described vacuum-pumping system, after vacuumizing, closed control valve Ⅸ.
6. a wind electricity blade integrated molding method, use the wind electricity blade integrated molding device described in any one of claim 1 to 5, described wind electricity blade comprises upper shell and lower house, adopt fibre reinforced matrix material, mould for shaping described wind electricity blade comprises upper shell former and lower house former, it is characterized in that, described method comprises the steps:
S1. lower house raw material lay: lay exterior skin smeared releasing agent on the inner surface of described lower house former after, described exterior skin is larger than the inner surface of described lower house former, exceeds the die parting line of the leading edge of described lower house former and the flange at trailing edge place; Then on described exterior skin, sandwich material is laid; On described sandwich material, lay inside panel afterwards, described inside panel part or entirety exceed the die parting line of the leading edge of described lower house former and the flange at trailing edge place; Lay release cloth on described inside panel afterwards; Finally at the leading edge locus lay injecting glue pipeline of described lower house former;
S2. shear web and core is placed: first on the release cloth of described inside panel, at least one shear web is set, in the left and right sides of web, core is set respectively afterwards, the fiber cloth that web both sides cover needs to extend on the top and bottom of core, overlaps respectively with the top and bottom of described inside panel, core; Covering vacuum bag again outside each described core;
S3. lay upper shell material: lay upper shell inside panel above the fiber laying exceeding the die parting line of the leading edge of described lower house former and the flange at trailing edge place in the fiber cloth laying exceeded in each described core, shear web and both sides thereof and step S1, then lay sandwich material on upper shell inside panel, lay upper shell exterior skin afterwards, covers the sandwich material on upper shell inside panel and upper shell inside panel;
S4. upper-lower casing matched moulds: after releasing agent smeared by upper shell former, upset upper shell former is placed on above described upper shell exterior skin, and makes upper and lower casing former accurate fit compact siro spinning technology together, forms airtight die cavity;
S5. the preparation before priming by vacuum: (1) vacuumizes, uses vacuum-pumping system to extract the air of described die cavity inside out; (2) carry out defoaming treatment to resin, resin is put into vacuum defoaming box, vacuum defoaming box connects vacuum-pumping system, vacuumizes defoaming treatment to resin;
S6. wind electricity blade integration form: resin is injected in the region between described upper and lower casing former and each core by described injecting glue pipeline pressurization;
S7. blade poured into and be heating and curing reach curing degree that regulation requires after turnover mould carry out molding, and remove each described core.
7. wind electricity blade integrated molding method according to claim 6, it is characterized in that: each described core is made up of core and the air bag that is wrapped in its outer surface, the outside covering vacuum bag again of described air bag, in step s 5, in described air bag, be filled with certain pressure as required, make each fiber laying and sandwich material fit tightly on the inner surface of described upper and lower casing former.
8. wind electricity blade integrated molding method according to claim 6, it is characterized in that: in step S2, two shear web are set at regular intervals, leading edge segments core, interlude core and trailing edge section core are set respectively in the left and right sides of described two shear web; Be Balsa wood or PVC material corresponding to the leading edge segments of the upper and lower casing of leading edge segments core, interlude core and trailing edge section core, the sandwich material at trailing edge section place, the sandwich material of interlude is glass fibre or its prefabrication or carbon fiber or its prefabrication.
9. the wind electricity blade integrated molding method according to any one of claim 6 to 8, it is characterized in that: in step S2, open up to arranging PVC foam or glass reinforced plastic support block, to locate and to support shear web in the corner that shear web contacts with inside panel along blade.
10. the wind electricity blade integrated molding method according to any one of claim 6 to 8, it is characterized in that: the core of described shear web is Balsa wood, PVC or other hard foams, and the fiber cloth of the shaping trailing web both sides of suction and core form sandwich structure.
11. wind electricity blade integrated molding methods according to claim 8, it is characterized in that: according to the needs of blade aerodynamic profile and technique convenience, described leading edge segments core, interlude core and trailing edge section core are independent entirety, or are made up of removable many parts assembling; The composition material of each core is identical, and for forming at the outside of wooden or foamed material parcel silicon rubber, wherein said wooden or foamed material Digit Control Machine Tool or linear cutter mode make the profile close with described mold cavity surfaces.
12. wind electricity blade integrated molding methods according to any one of claim 6 to 8, it is characterized in that: described exterior skin is composite fibre layer, described composite fibre layer is glass fabric, carbon fibre fabric.
13. wind electricity blade integrated molding methods according to any one of claim 6 to 8, is characterized in that: except except the leading edge locus lay injecting glue pipeline of described lower house former, also need at non-leading edge locus lay injecting glue pipeline for subsequent use.
14. wind electricity blade integrated molding methods according to any one of claim 6 to 8, it is characterized in that: in order to before increasing described wind electricity blade, the intensity of trailing edge, the exterior skin of upper and lower casing and leading edge, trailing edge exceed the overlapping lay of fiber crossovers of die parting line part.
15. wind electricity blade integrated molding methods according to any one of claim 6 to 8, is characterized in that: be laid with heating system in described upper and lower casing former, and can need regulate and control temperature according to technical process.
16. wind electricity blade integrated molding methods according to claim 11, is characterized in that: the geometry of described trailing edge section core is with bending part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210581854.4A CN103042701B (en) | 2012-12-27 | 2012-12-27 | Integrated formation device and method for wind power blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210581854.4A CN103042701B (en) | 2012-12-27 | 2012-12-27 | Integrated formation device and method for wind power blade |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103042701A CN103042701A (en) | 2013-04-17 |
| CN103042701B true CN103042701B (en) | 2015-06-24 |
Family
ID=48055662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210581854.4A Active CN103042701B (en) | 2012-12-27 | 2012-12-27 | Integrated formation device and method for wind power blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103042701B (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2522679A (en) * | 2014-02-03 | 2015-08-05 | Vestas Wind Sys As | Wind turbine components |
| CN103936450B (en) * | 2014-03-26 | 2015-04-08 | 西北工业大学 | Preparation method for sharp leading edge |
| CN106217697B (en) * | 2016-08-30 | 2018-09-14 | 山东双一科技股份有限公司 | A kind of molding die and preparation method thereof of composite material multi-rotor unmanned aerial vehicle horn |
| CN108509663B (en) * | 2017-02-24 | 2021-11-19 | 株洲时代新材料科技股份有限公司 | Method for designing PVC foam for die assembly of trailing edge of wind power blade |
| CN109016571B (en) * | 2018-07-11 | 2020-09-15 | 江苏新扬新材料股份有限公司 | Preparation method of airfoil |
| CN109719972B (en) * | 2019-01-26 | 2023-08-18 | 浙江理工大学 | Resin injection device for preparing composite pipe fitting and control method |
| CN110877883A (en) * | 2019-12-03 | 2020-03-13 | 大唐玉门新能源有限公司 | Wind-powered electricity generation blade turning device |
| CN112277233A (en) * | 2020-10-22 | 2021-01-29 | 戴铂新材料(张家港)有限公司 | Foaming process and production equipment for wind power blade foam sandwich material |
| CN113370555A (en) * | 2021-06-09 | 2021-09-10 | 双一科技盐城有限公司 | Preparation method for integrally forming wind power blade |
| CN114311453A (en) * | 2021-11-17 | 2022-04-12 | 洛阳双瑞风电叶片有限公司 | Method for integrally pouring wind power blade web along with shell |
| CN114311754A (en) * | 2021-12-31 | 2022-04-12 | 江苏金风科技有限公司 | Method for manufacturing blade member and blade |
| CN114434829B (en) * | 2022-02-14 | 2024-01-19 | 浙江颢屹汽车技术有限公司 | Vacuum introduction process |
| CN114683580B (en) * | 2022-03-08 | 2024-03-26 | 三一(韶山)风电设备有限公司 | Blade concentrated pouring forming device and method, wind power blade and wind generating set |
| CN114986934A (en) * | 2022-05-12 | 2022-09-02 | 吉林重通成飞新材料股份公司 | Wind power blade pouring method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0865900A1 (en) * | 1997-03-12 | 1998-09-23 | Alternatives Energies | Process for manufacturing large size articles from composite material and propeller blade, namely for windmills, produced using such a method |
| CN101704300A (en) * | 2009-11-12 | 2010-05-12 | 江苏九鼎新材料股份有限公司 | Integral one-step molding technique of wind power blade |
| CN102416700A (en) * | 2011-08-31 | 2012-04-18 | 乔治富 | Production technology of vane used for vertical shaft wind driven generator |
| CN102672976A (en) * | 2012-05-22 | 2012-09-19 | 昆山华风风电科技有限公司 | Integrated molding process for blades for wind power generation |
| CN203031963U (en) * | 2012-12-27 | 2013-07-03 | 中国科学院工程热物理研究所 | Wind-power blade integral molding device |
-
2012
- 2012-12-27 CN CN201210581854.4A patent/CN103042701B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0865900A1 (en) * | 1997-03-12 | 1998-09-23 | Alternatives Energies | Process for manufacturing large size articles from composite material and propeller blade, namely for windmills, produced using such a method |
| CN101704300A (en) * | 2009-11-12 | 2010-05-12 | 江苏九鼎新材料股份有限公司 | Integral one-step molding technique of wind power blade |
| CN102416700A (en) * | 2011-08-31 | 2012-04-18 | 乔治富 | Production technology of vane used for vertical shaft wind driven generator |
| CN102672976A (en) * | 2012-05-22 | 2012-09-19 | 昆山华风风电科技有限公司 | Integrated molding process for blades for wind power generation |
| CN203031963U (en) * | 2012-12-27 | 2013-07-03 | 中国科学院工程热物理研究所 | Wind-power blade integral molding device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103042701A (en) | 2013-04-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103042701B (en) | Integrated formation device and method for wind power blade | |
| CN103042700B (en) | Integrated forming method and device for segmented blade | |
| CN102814996B (en) | Preparing method of hybrid composite wing spar of large-scale wind power blade | |
| CN109203515B (en) | Wind power blade and manufacturing method thereof | |
| CN101585238B (en) | Integral molding technique and molding system for supersized composite material member | |
| CN102817794B (en) | Lengthenable large composite material wind power generation blade | |
| CN102416700A (en) | Production technology of vane used for vertical shaft wind driven generator | |
| CN101462360A (en) | High-power wind mill blade root disposal vacuum auxiliary pouring and molding method | |
| CN201771696U (en) | Integral blade of large scaled wind generating set | |
| CN101451492A (en) | Method and apparatus for fabricating wind turbine components | |
| CN109109341B (en) | Preparation method of wind power blade | |
| CN103921457A (en) | Method for manufacturing main beam or auxiliary beam of fan blade by unidirectional sheets manufactured by use of pultrusion process | |
| CN102114710B (en) | Method for preparing large-scale composite-material aerogenerator blade | |
| CN102529109A (en) | Method for integrally molding wind driven generator blade shell and front edge bonding angle | |
| CN109968689B (en) | Filling system and filling forming process for embedded wind power blade root | |
| CN202088471U (en) | RTM (resin transfer molding) die for blade of wind driven generator and corresponding blade | |
| CN102001184B (en) | Vacuumizing method for producing large-sized composite material member and composite air extracting layer | |
| CN110884167B (en) | Polyurethane resin pouring structure and forming method for wind power generation blade | |
| CN108005846A (en) | Main bearing beam and hybrid wing spar composite wind power blade for large wind power blade and preparation method thereof | |
| CN109203516B (en) | Manufacturing method of wind power blade | |
| CN106626437A (en) | Wind generating set blade forming die and forming method | |
| CN203031963U (en) | Wind-power blade integral molding device | |
| CN103485570A (en) | Inner reinforcement composite material tower and manufacturing method thereof | |
| CN102672978A (en) | Technique for manufacturing blade of wind-driven generator | |
| CN112848390A (en) | Vacuum infusion method for wind driven generator blade |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |