WO2024109621A1 - Dispositif de pultrusion, procédé de production de pultrudat, plaque de torsion et pale de turbine éolienne - Google Patents

Dispositif de pultrusion, procédé de production de pultrudat, plaque de torsion et pale de turbine éolienne Download PDF

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Publication number
WO2024109621A1
WO2024109621A1 PCT/CN2023/132023 CN2023132023W WO2024109621A1 WO 2024109621 A1 WO2024109621 A1 WO 2024109621A1 CN 2023132023 W CN2023132023 W CN 2023132023W WO 2024109621 A1 WO2024109621 A1 WO 2024109621A1
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WO
WIPO (PCT)
Prior art keywords
profile
extruder
guide rod
fiber
pultrudate
Prior art date
Application number
PCT/CN2023/132023
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English (en)
Chinese (zh)
Inventor
翟佳琪
鲁晓锋
肖磊
李占营
杨玉荣
Original Assignee
中材科技风电叶片股份有限公司
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Publication of WO2024109621A1 publication Critical patent/WO2024109621A1/fr

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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
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
    • B29C70/52—Pultrusion, i.e. forming and compressing by continuously pulling through a die
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

Definitions

  • the present application relates to the field of pultruded profiles, and in particular to a pultrusion device, a profile production method, a torsion plate, and a wind turbine blade.
  • leading edge beam and trailing edge beam of large blades are components formed by uniaxial fibers to withstand bending loads. The appearance of these components is not only curved, but also torsion.
  • the embodiments of the present application provide a pultrusion device, a production method for a profile, a torsion plate and a wind turbine blade to improve the strength and production efficiency of the blade.
  • the embodiment of the first aspect of the present application provides a pultrusion device, comprising: The fibers of the yarn frame are dipped in the dip tank, and then solidified and extruded by the extrusion molding mechanism to form a pultruded board mother profile. The pultruded board mother profile is pulled by the traction machine.
  • the extrusion molding mechanism includes an extruder and an adjustment component, and the extruder adjusts the translation position in a first plane perpendicular to the direction of travel of the profile and/or the rotation angle in the first plane through the adjustment component.
  • the extruder includes a main body and an extrusion part, wherein the extrusion part is embedded in the main body and is used to solidify the fibers after extrusion and dipping, and the adjustment component also includes a rotating member for rotating the extrusion part relative to the main body.
  • the adjusting assembly includes a guide assembly and a driving assembly
  • the extruder is movably connected to the guide assembly
  • the driving assembly is used to drive the extruder to move along the guide assembly.
  • the guide assembly includes a first guide rod and a second guide rod, the first guide rod extends along a first direction, the second guide rod extends along a second direction, and the first direction and the second direction are both parallel to the first plane;
  • the extruder is slidably connected to the first guide rod, and the second guide rod is slidably connected to the first guide rod; the driving assembly is used to drive the extruder to slide along the first guide rod and drive the first guide rod to slide along the second guide rod.
  • the second aspect of the present application provides a method for producing a profile, comprising:
  • the fibers wound on the yarn frame are dipped in a dip tank to form a soaked fiber profile
  • the extrusion molding mechanism includes an extruder and an adjustment component
  • the pultruded board mother profile is pulled along the profile travel direction by a pulling machine
  • the extruder When the free end face of the pultruded board mother profile pulled by the traction machine is at a preset distance from the extrusion molding mechanism, the extruder is adjusted translationally and/or rotationally in the first plane perpendicular to the direction of profile travel through the adjustment component to form the profile.
  • the extruder is adjusted by translation in a first plane perpendicular to the direction of travel of the profile and/or rotation in the first plane through an adjustment component at a uniform or non-uniform speed.
  • the fiber is one of carbon fiber, glass fiber, basalt fiber, aramid fiber, etc. One or a mixture of several.
  • the glue in the dipping tank is formed by a mixture of one or more of vinyl polyester resin, epoxy resin, phenolic resin and polyurethane resin.
  • An embodiment of the third aspect of the present application provides a torsion plate, which is prepared by the aforementioned profile production method, including: an end portion and a deformation portion, the end portion and the deformation portion are integrally formed, and adjacent cross-sections of the deformation portion in a direction perpendicular to its own extension change at a preset angle.
  • the heights of adjacent cross sections of the deformation portion in a direction perpendicular to its own extension direction vary gradually.
  • An embodiment of a fourth aspect of the present application provides a wind turbine blade, comprising the aforementioned pultruded profile.
  • the pultrusion equipment connects an adjustment component to an extruder, so that the axis of the profile in its own extension direction can be adjusted to bend and bend during the profile production process, thereby improving the current situation in which the profile axis is only a straight line, and can produce profiles with complex spatial shapes with spatial torsion.
  • Such profiles can have a spatial curved surface shape that completely fits the shape of the blade mold, and are used to replace the composite leading edge beams and trailing edge beams in large-size wind turbine blades, which can not only improve the quality of the blades, but also shorten the production time of the blades.
  • FIG1 is a schematic structural diagram of a pultrusion device provided in an embodiment of the first aspect of the present application.
  • FIG2 is a schematic structural diagram of a torsion plate provided in an embodiment of the third aspect of the present application.
  • 20 pultrusion equipment; 21: yarn rack; 22: dipping tank; 231: extruder; 2311: extrusion part; 2312: main body; 232: guide assembly; 233: drive assembly; 2321: first guide rod; 2322: second guide rod; 24: traction machine; 25: cutting machine.
  • any lower limit can be combined with any upper limit to form an unclearly recorded range; and any lower limit can be combined with other lower limits to form an unclearly recorded range, and any upper limit can be combined with any other upper limit to form an unclearly recorded range.
  • each point or single value between the range endpoints is included in the range.
  • each point or single value can be combined as its own lower limit or upper limit with any other point or single value or with other lower limits or upper limits to form an unclearly recorded range.
  • leading edge beam and trailing edge beam of large blades are components formed by uniaxial fibers, which are used to bear bending loads. These components are not only bent but also torsion in appearance.
  • the inventor of the present application has noticed that most of the main beams and secondary beams of large blades are currently in use. Prefabricated pultruded profiles are used, and due to the increase in the size of the blade, the blade also needs auxiliary beams to bear the main bending load. Compared with the main beams and auxiliary beams formed by vacuum induction, pultruded profiles have the advantages of high strength and rigidity, stable product performance, small production error, short production time, etc.
  • the inventor of this application was inspired and provided a pultrusion device, a profile production method, and a torsion profile after research to improve the strength and production efficiency of the blade.
  • the embodiment of the present application provides a pultrusion device, including: a yarn rack, a dipping tank, an extrusion molding mechanism and a traction machine distributed in sequence along the direction of profile travel, the fibers of the yarn rack are dipped in the dipping tank, and then cured and extruded by the extrusion molding mechanism to form a pultruded mother profile, and the pultruded mother profile is pulled by the traction machine; wherein the extrusion molding mechanism includes an extruder and an adjustment component, and the extruder adjusts the translation position in a first plane perpendicular to the direction of profile travel and/or the rotation angle in the first plane through the adjustment component.
  • the pultrusion equipment with such a structure can produce profiles with a spatial torsion shape, which is used to replace the composite leading edge beam and trailing edge beam in large-sized wind turbine blades, which can not only improve the quality of the blades, but also shorten the production time of the blades.
  • FIG. 1 is a schematic diagram of the structure of a pultrusion device provided in an embodiment of the present application
  • FIG. 2 is a schematic diagram of the structure of a torsion plate provided in an embodiment of the present application.
  • the pultrusion equipment 20 provided in the embodiment of the present application includes: a yarn rack 21, a dipping tank 22, an extrusion molding mechanism and a traction machine 24 distributed in sequence along the travel direction of the profile.
  • the fibers of the yarn rack 21 are dipped in glue through the dipping tank 22 and then passed through the extrusion molding mechanism.
  • the extrusion molding mechanism includes an extruder 231 and an adjustment component 232.
  • the extruder 231 adjusts the translational position in a first plane perpendicular to the travel direction of the profile and/or the rotation angle in the first plane through the adjustment component 232.
  • a number of fibers are independently released from the yarn rack 21, and are arranged and output through the guide holes under the action of traction force.
  • the arranged and output fibers are impregnated in the glue dipping tank 22, and the impregnation time required for the fiber to be fully impregnated can be obtained through the target ring experiment.
  • the impregnation distance of the fiber in the glue dipping tank 22 is calculated in combination with the pultrusion speed, and the glue is replenished in time according to the amount of glue consumed by the fiber per unit time.
  • the viscosity of the glue can be adjusted as needed.
  • the viscosity of the glue in the glue dipping tank 22 is maintained in the range of 800 to 6000 mPa.s, which ensures the fluidity of the glue in the glue tank 213, thereby facilitating the increase of the pultrusion speed.
  • the extrusion molding mechanism 23 is used to solidify the impregnated fiber into a pultruded board mother profile.
  • the extrusion molding mechanism includes an extruder 231 and an adjustment component 232.
  • the impregnated fiber in the embodiment of the present application The fibers pass through the extruder 231 and are squeezed and heated in the extruder 231 . As the fibers enter, the present application does not specifically limit the heating method.
  • the adjustment component 232 is connected to the extruder 231 and is used to move the extruder 231 so that the extruder moves in a first plane perpendicular to the direction of travel of the profile. Under the adjustment of the adjustment component 232, the extruder 231 can change the position in the first plane perpendicular to the direction of travel of the profile by translation and/or change the angle in the first plane by rotation. For example, the adjustment component 232 can adjust the extruder 231 to translate up and down or left and right relative to the ground, and can also rotate. With the entry of the fiber yarn, a certain section of the pultruded board mother profile is solidified and formed.
  • the center of the next section may change with the movement of the extruder 231, the height of the next section may rise or fall with the extruder 231, and/or the angle formed by the next section and the ground also changes with the rotation of the extruder 231, so that the center and angle of each section are not completely consistent, and the final product will be a composite material space torsion pultrusion part with a complex spatial shape.
  • the tractor 24 is used to pull the profile to move.
  • the tractor 24 can be relatively fixed to the profile and move with the profile in the direction of the profile movement, or a channel can be formed in the tractor 24 so that the solidified profile moves along the channel and moves relative to the tractor 24, as long as the effect of transferring the profile is met.
  • the pultrusion equipment 20 provided in the embodiment of the present application also includes a cutting machine 25, and the cutting machine 25 is used to tow and cut the solidified pultruded flat form to obtain a finished product of a required length.
  • the pultrusion equipment 20 provided in the embodiment of the present application connects the adjustment component 232 with the extruder 231, so that the axis of the profile in its own extension direction can be adjusted to bend during the production process of the pultruded board mother profile, thereby improving the current situation in which the axis of the plate is only a straight line, and can produce plates with complex spatial shapes with spatial twisting.
  • Such plates can have a spatial curved surface shape that is completely in line with the shape of the blade mold, and are used to replace the composite leading edge beams and trailing edge beams in large-sized wind turbine blades, which can not only improve the quality of the blades, but also shorten the production time of the blades.
  • the pultrusion equipment 20 provided in the embodiment of the present application can also produce straight-shaped plates.
  • the extruder 231 includes a main body 2312 and an extrusion part 2311, and the extrusion part 2311 is embedded in the main body 2312.
  • the adjusting assembly is used to solidify the fibers after extrusion and dipping, and the adjusting assembly also includes a rotating member for rotating the extrusion part relative to the main body 2312.
  • the rotating member of the adjusting assembly control the extrusion part 2311 to rotate.
  • the outer contour of the extrusion part 2311 is circular.
  • the adjustment assembly includes a guide assembly 232 and a drive assembly 233
  • the extruder 231 is movably connected to the guide assembly 232
  • the drive assembly 233 is used to drive the extruder 231 to move along the guide assembly 232.
  • the drive assembly 233 may include a motor, which is connected to the extruder 231 and drives the extruder 231 to move along the guide assembly 232.
  • the guide assembly 232 can provide guidance for the movement of the extrusion die 231 to make the movement trajectory of the profile smooth.
  • the guide assembly includes a first guide rod 2321 and a second guide rod 2322, the first guide rod 2321 extends along a first direction, the second guide rod 2322 extends along a second direction, and the first direction and the second direction are both parallel to the first plane; the extruder is slidably connected to the first guide rod 2321, and the second guide rod 2322 is slidably connected to the first guide rod 2321; the driving assembly is used to drive the extruder to slide along the first guide rod 2321 and drive the first guide rod 2321 to slide along the second guide rod 2322.
  • the first guide rod 2321 is a transverse rod penetrating the extruder 231, and the extruder 231 can move horizontally along the transverse rod
  • the second guide rod 2322 is a vertical rod connected to the transverse rod
  • the extruder 231 can move vertically relative to the transverse rod 2321 along the transverse rod 2321.
  • the guide assembly 232 can provide guidance for the movement of the extrusion mold 231 to make the movement trajectory of the plate smooth and produce a plate with a smooth appearance.
  • it can also provide support for the extruder 231.
  • the second guide rod 2322 and the first guide rod 2321 may also be arranged at an inclined angle relative to the ground, and this application does not make any specific limitation on this.
  • first guide rods 2321 are provided; four second guide rods 2322 are provided, which are divided into two groups and distributed on both sides of the extruder 231 .
  • the guide assembly 232 may also be a rod that is inclined relative to the ground, and this application does not make any specific limitation to this.
  • the driving assembly may include a control system and multiple motors, the multiple motors are electrically connected to the control system, and the control system is used to command the multiple motors to drive the extruder 231 to move horizontally or rotationally according to the requirements of the torsion or change of the cross-sectional center of the plate to be produced.
  • the molding cross-section of the extruder 231 is in the shape of a flat rectangle or a parallelogram, so that the extruder 231 can produce panels with complex spatial shapes with spatial twisting.
  • the size of the molding cross-section can be set according to actual needs, and this application does not make any specific limitations on this.
  • an embodiment of the present application provides a method for producing a profile, comprising: subjecting fibers wound on a yarn frame to a resin dipping process in a resin dipping tank to form an impregnated fiber profile; subjecting the impregnated fiber profile to a curing process through an extrusion molding mechanism to form a pultruded board mother profile, wherein the extrusion molding mechanism comprises an extruder and an adjustment component; and the pultruded board mother profile is towed along a fiber travel direction by a traction machine;
  • the extruder when the free end face of the pultruded board mother profile pulled by the traction machine is at a preset distance from the extrusion molding mechanism, the extruder is translated and/or rotationally adjusted in a first plane perpendicular to the direction of profile travel through an adjustment component to form a deformed profile.
  • the profile gradually solidifies and forms from the end.
  • the extruder 231 can be moved by adjusting the adjustment component, driving the positions of different sections of the profile to change, so that the profile begins to deform to form the deformation part 12 of the profile.
  • the preset length here can be set according to actual needs.
  • the extruder 231 can translate in a first plane perpendicular to the direction of travel of the profile, or rotate in the first plane, or translate and rotate simultaneously in the first plane.
  • a certain section of the profile is translated by a preset distance or rotated by a preset angle relative to the position of two adjacent sections, or translates and rotates simultaneously.
  • the preset position of the gradual translation of the extruder 231, the preset angle of the gradual rotation, and the speed of translation and rotation can all be set according to the shape of the desired profile.
  • the parameters can be set according to the shape of the desired profile to control the movement of the extruder 231, so that the profile is deformed during the production process, and finally a deformed part of the profile is formed.
  • the method for producing a profile provided in the embodiment of the present application may further include cutting to form the profile when the distance between the free end surface and the outlet of the extrusion die 231 meets a second preset length.
  • the second preset length is the length of the profile.
  • the production method of the profile provided in the embodiment of the present application improves the pultrusion process.
  • the extrusion die 231 can move in a first plane perpendicular to the direction of travel of the profile, and a pultruded profile with spatial deformation can be produced, wherein:
  • the pultruded profiles with special shapes of bending and twisting are adapted to the nonlinear shape of the blade mold and can be used to replace the composite leading edge beams and trailing edge beams in large-sized wind turbine blades.
  • the profiles are formed by pultrusion process, which can not only improve the quality of the blades, but also shorten the production time of the blades.
  • the speed at which the extruder is adjusted translationally in a first plane perpendicular to the direction of travel of the profile and/or rotationally in the first plane by the adjustment component is uniform.
  • the uniform movement of the extruder 231 can make the deformed cross sections of the profile change uniformly, forming a smooth curve.
  • the moving speed of the extruder 231 can also be non-uniformly changed, and the specific change rule depends on the shape parameters of the required profile.
  • the dipped fiber is formed by dipping the fiber in a glue solution.
  • the fiber is a fiber commonly used in the art for producing pultruded profiles, and can be selected according to actual needs.
  • the fiber includes one or a mixture of carbon fiber, glass fiber, basalt fiber, aramid fiber, etc.
  • the adhesive is formed by a resin commonly used in the art for producing pultruded profiles, which can be selected according to actual needs.
  • the resin includes one or a mixture of vinyl polyester resin, epoxy resin, phenolic resin and polyurethane resin.
  • the present application provides a torsion plate 10, which is prepared by the above method and includes: an end portion 11 and a deformation portion 12,
  • the end portion 11 and the deformable portion 12 are integrally formed, and adjacent cross sections of the deformable portion 12 in a direction perpendicular to its own extension direction change at a preset angle.
  • the twisted plate 10 provided in the present application has adjacent cross sections at a certain angle in the direction perpendicular to its own extension, and the whole is a spatial twisted plate 10, which can be used to replace the composite leading edge beam and trailing edge beam in large-sized wind turbine blades.
  • the profile is formed by pultrusion process, which can not only improve the quality of the blade, but also shorten the production time of the blade.
  • the heights of adjacent cross sections of the deformation portion 12 in a direction perpendicular to its own extension vary in a gradient manner.
  • the torsion plate 10 provided in the present application not only has a special torsion shape, but also presents a curved shape in its own extension direction, which is more in line with the special shape with bending and torsion, more adaptable to the nonlinear shape of the blade mold, and improves the degree of fit with the blade mold.
  • the embodiment of the present application provides a wind turbine blade, including the aforementioned torsion plate 10.
  • the wind turbine blade provided by the present application has a shortened production time, improved efficiency, and better quality.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Composite Materials (AREA)
  • Mechanical Engineering (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

La présente demande concerne un dispositif de pultrusion, un procédé de production de pultrudat, une plaque de torsion et une pale de turbine éolienne. Le dispositif de pultrusion comprend un cadre de fil, un réservoir de trempage, un mécanisme de moulage par extrusion et un tracteur, qui sont répartis en séquence le long d'une direction d'avancement de fibre ; la fibre du cadre de fil est trempée dans le réservoir de trempage, puis est durcie et extrudée par le mécanisme de moulage par extrusion, pour former un pultrudat femelle de plaque de pultrusion et le pultrudat femelle de plaque de pultrusion est tiré par le tracteur ; le mécanisme de formation d'extrusion comprend une extrudeuse et un ensemble de réglage et l'extrudeuse ajuste une position de translation dans un premier plan perpendiculaire à une direction d'avancement du pultrudat et/ou un angle de rotation dans le premier plan au moyen de l'ensemble de réglage. Le dispositif de pultrusion fourni par la présente demande, au moyen de l'ensemble de réglage relié à l'extrudeuse, peut régler un axe du pultrudat dans la direction d'extension du pultrudat pendant le processus de production de pultrudat ; un pultrudat ayant un profil spatial complexe avec une torsion spatiale peut être produit, qui peut être utilisé pour remplacer une poutre de bord d'attaque de matériau composite et une poutre de bord de fuite dans une pale de turbine éolienne de grande taille.
PCT/CN2023/132023 2022-11-22 2023-11-16 Dispositif de pultrusion, procédé de production de pultrudat, plaque de torsion et pale de turbine éolienne WO2024109621A1 (fr)

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CN202211467045.0A CN115742383A (zh) 2022-11-22 2022-11-22 拉挤设备、型材的生产方法、扭转板件及风力发电机叶片
CN202211467045.0 2022-11-22

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CN115742383A (zh) * 2022-11-22 2023-03-07 中材科技风电叶片股份有限公司 拉挤设备、型材的生产方法、扭转板件及风力发电机叶片

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CN112118952A (zh) * 2018-03-22 2020-12-22 通用电气公司 用于制造风力涡轮转子叶片构件的方法
JP2021070184A (ja) * 2019-10-30 2021-05-06 サクラ化学工業株式会社 成形体及びその製造方法
CN112339301A (zh) * 2020-11-11 2021-02-09 振石集团华智研究院(浙江)有限公司 一种拉挤材料生产系统、生产方法及玻璃钢拉挤条
CN115742383A (zh) * 2022-11-22 2023-03-07 中材科技风电叶片股份有限公司 拉挤设备、型材的生产方法、扭转板件及风力发电机叶片

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