Wind power blade prefabricated part machining system and method

Abstract

The invention relates to the technical field of wind power blades, in particular to a wind power blade prefabricated part processing system and method.A control center determines cloth cutting parameters and cloth paving parameters based on the boundary dimension of a to-be-processed prefabricated part and sends the cloth cutting parameters and the cloth paving parameters to a cloth cutting module and a cloth paving module respectively; the unwinding unit is further driven to unwind the glass fiber fabric with the corresponding size according to the needed cloth piece area, a cutting area corresponding to the glass fiber fabric is divided on the surface of the glass fiber fabric according to the shape and size of each cloth piece, and cutting is conducted through the cloth cutting module; secondly, the control center determines the laying position of each cloth piece on the conveying platform through projection equipment, assists manual work in determining the laying sequence of the cloth pieces to complete accurate laying of the corresponding cloth pieces, and then the prefabricated part is manufactured through the heating and curing technology without sewing operation in the traditional machining process; and the control center is matched with the cloth cutting module and the cloth paving module, so that the production efficiency and precision of the wind power blade prefabricated part are improved, and the production cost and the material waste are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of wind turbine blades, and in particular to a system and method for processing a prefabricated wind turbine blade. Background Art

[0002] In the manufacturing process of modular wind turbine blades, multiple layers of glass fiber fabrics are required to process prefabricated parts; currently, the processing steps of sewing first and then cutting are adopted, that is, multiple layers of glass fiber are unwound synchronously and driven by a conveying platform to pass through sewing equipment and cutting equipment in sequence to complete the processing operation, wherein multiple layers of glass fiber are stacked on the conveying platform and staggered along its width direction, and the sewn fabric is cut into a preset size or shape by a cutter.

[0003] During the transportation of multiple layers of glass fiber, it is necessary to monitor the accuracy of the staggered laying position to ensure the stability of the prefabricated processing structure; however, during the transportation of staggered laying glass fiber, the glass fiber fabrics unwound from different material rolls are affected by tension changes, and it is easy for a layer of glass fiber fabric to shift in position. Even if the corresponding mechanical correction device is set in time, it will affect the normal production rhythm and cause material waste.

[0004] When sewing multiple layers of fiberglass, the sewing machine may not completely penetrate all the fiberglass layers when passing through the thicker stacked fiberglass, which affects the production quality. In the process of sewing first and then cutting, a large cutting margin is often reserved before cutting, resulting in material waste and increased production costs.

[0005] The information disclosed in this background technology section is only intended to deepen the understanding of the overall background technology of the present disclosure, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art known to those skilled in the art. Summary of the invention

[0006] The present invention provides a system and method for processing a prefabricated wind turbine blade, which can effectively solve the problems in the background technology.

[0007] In order to achieve the above object, the technical solution adopted by the present invention is: A wind turbine blade prefabricated component processing system, the processing system comprising: The cloth cutting module obtains the cutting signal and drives the cutter to cut the fiberglass cloth into multiple cloth pieces; The cloth spreading module obtains the laying signal and cooperates with the projection unit to lay multiple cloth pieces layer by layer on the transmission platform; The control center determines the cloth cutting parameters and the cloth spreading parameters based on the external dimensions of the preform to be processed and sends them to the cloth cutting module and the cloth spreading module respectively; A heating module, which heats the multiple layers of cloth on the transmission platform through a microwave heating unit to melt the unsaturated polyester spread between the multiple layers of cloth; Cooling module: the heated multi-layer fabric pieces pass through the cooling zone for cooling and shaping; A conveying module is used to drive the transmission platform to pass through the projection unit, the microwave heating unit and the cooling zone in sequence.

[0008] Furthermore, the control center determines the number of required cloth pieces, as well as the size, laying order and laying position of each cloth piece based on the outer dimensions of the preform to be processed; The control center sends the cutting signal based on the number and size of the required cloth pieces, performs coding marking on each cut cloth piece through the coding unit, collects coding information through the identification unit and sends the laying signal.

[0009] Furthermore, the control center determines the cutting area and cutting contour of the fiberglass fabric surface based on the size of the fiberglass fabric surface and the number and size of fabric pieces required for the preform to be processed; The cutting signal includes a coordinate set for driving the cutter to perform a cutting operation, and the coordinate set is obtained by analyzing the cutting area and cutting contour determined by the control center based on the glass fiber cloth surface.

[0010] Furthermore, the laying signal includes the laying order and laying position of the cloth pieces, and the laying position of the cloth pieces to be laid is determined by the inkjet coding information collected by the recognition unit and sent to the projection unit; The projection unit adjusts the projection coordinates based on the determined laying position of the cloth piece to be laid, and projects a positioning projection to the transmission platform to assist in the positioning and laying of the cloth piece to be laid.

[0011] Further, the conveying module comprises a first conveying belt, a second conveying belt and a third conveying belt respectively arranged corresponding to the projection unit, the microwave heating unit and the cooling zone; The first conveyor belt and the second conveyor belt drive the transmission platform to be transported toward the microwave heating unit and the cooling zone respectively.

[0012] Furthermore, the projection unit is arranged above the first conveyor belt, suppressors are arranged at the inlet and outlet of the heating cavity of the microwave heating unit, and a circulating fan and a temperature detection device are arranged in the cooling zone.

[0013] A method for processing a prefabricated wind turbine blade, using the above-mentioned prefabricated wind turbine blade processing system, comprises the following steps: The control center analyzes the dimensions of the prefabricated parts to be processed and determines the cutting and spreading parameters of the required fabrics; The cloth cutting module cuts the glass fiber cloth into a plurality of cloth pieces according to the cloth cutting parameters, and the cloth spreading module spreads the plurality of cloth pieces layer by layer on the transmission platform according to the cloth spreading parameters; The unsaturated polyester between the multi-layer fabric pieces is melted by the microwave heating unit of the heating module, and the heated multi-layer fabric pieces are cooled and shaped by the cooling zone of the cooling module; The multi-layered cloth sheet structure after cooling and shaping is cut or polished to complete the processing of the prefabricated part.

[0014] Furthermore, the cloth cutting parameters include the number of cloth pieces and corresponding size parameters, and the cloth spreading parameters include the laying order and laying positions of the cloth pieces; The control center determines the cutting area and cutting contour of the glass fiber cloth surface according to the number and size parameters of the cloth pieces required for the preform to be processed, and the size of the cutting contour is larger than the size of the required cloth pieces; After determining the laying order of the cloth pieces, the laying positions of the cloth pieces to be laid are sent to the projection unit of the cloth laying module, and the projection coordinates are corrected by the projection unit and the positioning projection is projected to the transmission platform to assist manual cloth laying operations.

[0015] Further, the transmission platform is sequentially driven by the first conveyor belt, the second conveyor belt and the third conveyor belt in the conveying module to pass through the projection unit, the microwave heating unit and the cooling zone; The manual spreading time t1 of the cloth cutting module is expressed by the following formula: t1=nT; The microwave heating time t2 of the heating module is expressed by the following formula: t2=s / v=6000*M*ΔT / P; t2<t1; Wherein, T represents the time required for manual laying and powdering of a cloth sheet, n represents the number of cloth sheets required for the preform to be processed, M represents the mass of the multi-layer cloth sheets transported to the heating module, ΔT represents the temperature difference before and after the multi-layer cloth sheets are heated, and P represents the heating power.

[0016] Furthermore, the laid multi-layer cloth sheet is heated to 125° by the microwave heating unit, the ambient temperature is reduced to 20° by air conditioning, and a circulating fan is added in the cooling zone to cool the heated multi-layer cloth sheet structure to 50° to completely set.

[0017] The beneficial effects of the present invention are: In the present invention, the control center first drives the unwinding unit to unwind glass fiber fabrics of corresponding sizes according to the required cloth area, and divides the corresponding cutting areas on the glass fiber fabric surface according to the shape and size of each cloth piece, and cuts it through the cloth cutting module; secondly, the control center determines the laying position of each cloth piece on the transmission platform through the projection equipment, assists in manually determining the laying order of each cloth piece to complete the precise laying of the corresponding cloth piece, and then manufactures the prefabricated parts through the heating and curing process, without the need for sewing operations in the traditional processing process; the control center cooperates with the cloth cutting module and the cloth laying module not only to improve the production efficiency and accuracy of wind turbine blade prefabricated parts, but also helps to reduce production costs and reduce material waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the framework of the wind turbine blade prefabricated component processing system of the present invention; Figure 2 It is a schematic diagram of the process of processing the prefabricated wind turbine blade in the present invention; Figure 3 It is a front view of the processing system of the present invention; Figure 4 A top view of the processing system of the present invention; Figure 5 It is a front view of the dehumidification system of the present invention.

[0020] Figure numerals: 1. cloth cutting module; 2. cloth spreading module; 21. projection unit; 3. control center; 4. heating module; 41. microwave heating unit; 42. suppressor; 5. cooling module; 51. cooling zone; 6. conveying module; 61. first conveyor belt; 62. second conveyor belt; 63. third conveyor belt; 64. transmission platform. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0024] As a key component of wind turbine generator sets, the demand for wind turbine blades continues to grow with the rapid development of renewable energy. The production process of modular wind turbine blades can improve production efficiency and reduce costs, and the local prefabricated parts of modular wind turbine blades also require optimized production efficiency and costs.

[0025] like Figures 1 to 5 As shown, the present invention adopts manual spreading method in combination with automation and intelligent technology to process and manufacture prefabricated parts in modular wind turbine blades. Compared with the manual spreading method in the traditional integral blade processing process, the workload and work intensity are drastically reduced, so that the manufacturing of prefabricated parts can be completed with the assistance of only one or two people.

[0026] Specifically, the present invention provides a wind turbine blade prefabricated component processing system, such as Figure 1 The processing system shown includes: The cloth cutting module 1 obtains the cutting signal and drives the cutter to cut the glass fiber cloth surface into multiple cloth pieces; in the cloth cutting module 1, the glass fiber fabric is unwound from the material roll to the cutting platform through the unwinding device, and the cutter cuts a piece of glass fiber fabric of the required size according to the area of ​​the cloth piece required for the preform to be processed, which is used for cutting the specific required cloth piece.

[0027] The cloth-laying module 2 obtains the laying signal and cooperates with the projection unit 21 to lay multiple cloth pieces layer by layer on the transmission platform 64; during the laying process, one or two people, with the assistance of the projection unit 21, stack and lay the cloth pieces layer by layer in an orderly manner, and during the laying process, the unsaturated polyester particles are evenly spread between two adjacent layers of cloth pieces.

[0028] The control center 3 determines the cloth cutting parameters and cloth spreading parameters based on the external dimensions of the preform to be processed and sends them to the cloth cutting module 1 and the cloth spreading module 2 respectively; specifically, the control center 3 first drives the unwinding unit to unwind the glass fiber fabric of corresponding size according to the required cloth area, and divides the corresponding cutting area on the glass fiber fabric surface according to the shape and size of each cloth piece, and cuts it through the cloth cutting module 1; secondly, the control center 3 determines the laying position of each cloth piece on the transmission platform 64 through the projection equipment, and manually determines the laying order of each cloth piece to complete the precise laying of the corresponding cloth piece.

[0029] The heating module 4 heats the multi-layer cloth pieces on the transmission platform 64 through the microwave heating unit 41 to melt the unsaturated polyester spread between the multi-layer cloth pieces; the cooling module 5 cools and shapes the heated multi-layer cloth pieces through the cooling zone 51; the preforms are manufactured through the heating and curing process, and the sewing operation in the traditional processing process is not required.

[0030] The conveying module 6 is used to drive the transmission platform 64 to sequentially pass through the projection unit 21, the microwave heating unit 41 and the cooling zone 51. The conveying module 6 needs to coordinate the spreading time of the spreading module 2 and the heating time of the heating module 4 to ensure the continuity of the processing.

[0031] In this embodiment, the control center 3 determines the number of required cloth pieces, as well as the size, laying order and laying position of each cloth piece based on the outer dimensions of the preform to be processed; the control center 3 sends a cutting signal based on the number and size of the required cloth pieces, and uses the inkjet unit to mark each cut cloth piece, collects the inkjet information through the identification unit and sends a laying signal.

[0032] Furthermore, the control center 3 determines the cutting area and cutting contour of the fiberglass cloth surface based on the size of the fiberglass cloth surface and the number and size of cloth pieces required for the preform to be processed; the cutting signal includes a coordinate set that drives the cutter to perform the cutting operation, and the coordinate set is obtained by analyzing the cutting area and cutting contour determined by the control center 3 based on the fiberglass cloth surface.

[0033] The cutting contour determined by the control center 3 is slightly larger than the size of the corresponding cloth piece, which can avoid the damage of the cloth piece caused by the cutting process affecting the quality of the prefabricated part, and can also reserve an operating margin for the cutting and polishing operation of the multi-layer cloth piece structure after heating and curing, ensuring that the final processed prefabricated part has accurate external dimensions.

[0034] Specifically, the control center 3 analyzes the processing drawings or data of the prefabricated parts to be processed, and can match and output the required cloth cutting parameters and cloth laying parameters through the pre-built database; after determining the parameters of the cloth piece, the control center 3 will send a cutting signal to the cloth cutting module 1 to drive the cutter to cut the fiberglass cloth surface into multiple cloth pieces according to the predetermined size and shape. After the cutting is completed, the coding unit will spray code marks on each cloth piece, and these marks contain the identity information, size, laying position and order of the cloth piece, so as to identify and locate it during the manual laying process.

[0035] Furthermore, the laying signal includes the laying order and laying position of the cloth pieces, and the laying position of the cloth pieces to be laid is determined by the inkjet coding information collected by the recognition unit and sent to the projection unit 21; the projection unit 21 adjusts the projection coordinates based on the determined laying position of the cloth pieces to be laid, and projects a positioning projection to the transmission platform 64 to assist in the positioning and laying of the cloth pieces to be laid.

[0036] The identification unit will collect the coding information on the cloth and send it to the cloth laying module 2 as a laying signal. The information collection of the identification module also plays a role in determining the order of cloth laying. During the processing, it is necessary to ensure the continuity of laying. If the laying order is determined manually through the coding mark, there will be operational errors, which will affect the continuity of processing. Therefore, before the cloth is laid, the identification unit can not only determine the laying position, but also determine whether the manual cloth selection is correct. The control center 3 cooperates with the cloth cutting module 1 and the cloth laying module 2 to not only improve the production efficiency and accuracy of wind turbine blade prefabricated parts, but also help reduce production costs and reduce material waste.

[0037] In this embodiment, the conveying module 6 includes a first conveyor belt 61, a second conveyor belt 62 and a third conveyor belt 63 respectively arranged corresponding to the projection unit 21, the microwave heating unit 41 and the cooling zone 51; the first conveyor belt 61 and the second conveyor belt 62 respectively drive the transmission platform 64 to transport to the microwave heating unit 41 and the cooling zone 51. The control center 3 controls the transmission speed of the first conveyor belt 61, the second conveyor belt 62 and the third conveyor belt 63, coordinates the spreading time of the spreading module 2 and the heating time of the heating module 4, and ensures the continuity of the processing process.

[0038] Furthermore, the projection unit 21 is arranged above the first conveyor belt 61, suppressors 42 are arranged at the entrance and exit of the heating cavity of the microwave heating unit 41, and a circulating fan and a temperature detection device are arranged in the cooling zone 51. The suppressors 42 arranged before and after the microwave heating equipment should ensure effective prevention of microwave leakage and guarantee the safety of the operator. Figure 5 As shown, the corresponding heating chamber is also provided with a dehumidification system and operates synchronously with the heating process to ensure timely removal of water vapor generated by heating and improve heating efficiency and uniformity.

[0039] like Figure 2 As shown, the present invention further discloses a method for processing a prefabricated wind turbine blade, which uses the above-mentioned prefabricated wind turbine blade processing system and includes the following steps: The control center 3 analyzes the outer dimensions of the preform to be processed and determines the cutting parameters and spreading parameters of the required cloth pieces; the cutting module 1 cuts the fiberglass cloth surface into multiple cloth pieces according to the cutting parameters, and the spreading module 2 spreads the multiple cloth pieces layer by layer on the transmission platform 64 according to the spreading parameters; the microwave heating unit 41 of the heating module 4 melts the unsaturated polyester between the multiple layers of cloth pieces, and then the heated multiple layers of cloth pieces are cooled and shaped by the cooling zone 51 of the cooling module 5; the cooled and shaped multiple layers of cloth piece structure are cut or polished to complete the processing of the preform.

[0040] Among them, the cloth cutting parameters include the number of cloth pieces and the corresponding size parameters, and the cloth spreading parameters include the laying order and laying position of the cloth pieces; the control center 3 determines the cutting area and cutting contour of the fiberglass cloth surface according to the number and size parameters of the cloth pieces required for the preform to be processed, and the size of the cutting contour is larger than the size of the required cloth pieces; after determining the laying order of the cloth pieces, the laying position of the cloth pieces to be laid is sent to the projection unit 21 of the cloth spreading module 2, and the projection coordinates are corrected by the projection unit 21 and the positioning projection is projected to the transmission platform 64 to assist manual cloth spreading operations.

[0041] Further, the transmission platform is sequentially driven by the first conveyor belt, the second conveyor belt and the third conveyor belt in the conveying module to pass through the projection unit, the microwave heating unit and the cooling zone; The manual spreading time t1 of the cloth cutting module is expressed by the following formula: t1=nT; The microwave heating time t2 of the heating module is expressed by the following formula: t2=s / v=6000*M*ΔT / P; t2<t1; Wherein, T represents the time required for manual laying and powdering of a cloth sheet, n represents the number of cloth sheets required for the preform to be processed, M represents the mass of the multi-layer cloth sheets transported to the heating module, ΔT represents the temperature difference before and after the multi-layer cloth sheets are heated, and P represents the heating power.

[0042] The microwave heating unit heats the laid multi-layer fabric to 125°, the air conditioner lowers the ambient temperature to 20°, and a circulating fan is added in the cooling area to cool the heated multi-layer fabric structure to 50° to fully set. The microwave heating temperature is 125°, the air conditioner turns on the ambient temperature to 20°, and a circulating fan is added in the cooling area to lower the temperature of the multi-layer fabric to 50°. The unsaturated polyester powder melts after heating and cools to 50° to fully set.

[0043] Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may be subject to various changes and improvements, which are within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A wind turbine blade prefabricated component processing system, characterized in that: The processing system comprises: The cloth cutting module obtains the cutting signal and drives the cutter to cut the fiberglass cloth into multiple cloth pieces; The cloth spreading module obtains the laying signal and cooperates with the projection unit to lay multiple cloth pieces layer by layer on the transmission platform; The control center determines the cloth cutting parameters and the cloth spreading parameters based on the external dimensions of the preform to be processed and sends them to the cloth cutting module and the cloth spreading module respectively; A heating module, which heats the multiple layers of cloth on the transmission platform through a microwave heating unit to melt the unsaturated polyester spread between the multiple layers of cloth; Cooling module: the heated multi-layer fabric pieces pass through the cooling zone for cooling and shaping; A conveying module is used to drive the transmission platform to pass through the projection unit, the microwave heating unit and the cooling zone in sequence.

2. The wind turbine blade prefabricated component processing system according to claim 1, characterized in that: The control center determines the number of required cloth pieces, as well as the size, laying order and laying position of each cloth piece based on the outer dimensions of the preform to be processed; The control center sends the cutting signal based on the number and size of the required cloth pieces, performs coding marking on each cut cloth piece through the coding unit, collects coding information through the identification unit and sends the laying signal.

3. The wind turbine blade prefabricated component processing system according to claim 2, characterized in that: The control center determines the cutting area and cutting contour of the fiberglass fabric surface based on the size of the fiberglass fabric surface and the number and size of fabric pieces required for the preform to be processed; The cutting signal includes a coordinate set for driving the cutter to perform a cutting operation, and the coordinate set is obtained by analyzing the cutting area and cutting contour determined by the control center based on the glass fiber cloth surface.

4. The wind turbine blade prefabricated component processing system according to claim 2, characterized in that: The laying signal includes the laying order and laying position of the cloth pieces, and the laying position of the cloth pieces to be laid is determined by the inkjet coding information collected by the recognition unit and sent to the projection unit; The projection unit adjusts the projection coordinates based on the determined laying position of the cloth piece to be laid, and projects a positioning projection to the transmission platform to assist in the positioning and laying of the cloth piece to be laid.

5. The wind turbine blade prefabricated component processing system according to claim 2, characterized in that: The conveying module comprises a first conveying belt, a second conveying belt and a third conveying belt respectively arranged corresponding to the projection unit, the microwave heating unit and the cooling zone; The first conveyor belt and the second conveyor belt drive the transmission platform to be transported toward the microwave heating unit and the cooling zone respectively.

6. The wind turbine blade prefabricated component processing system according to claim 5, characterized in that: The projection unit is arranged above the first conveyor belt, suppressors are arranged at the inlet and outlet of the heating cavity of the microwave heating unit, and a circulating fan and a temperature detection device are arranged in the cooling zone.

7. A method for processing a prefabricated wind turbine blade, characterized in that: The wind turbine blade prefabricated component processing system according to any one of claims 1 to 6 comprises the following steps: The control center analyzes the dimensions of the prefabricated parts to be processed and determines the cutting and spreading parameters of the required fabrics; The cloth cutting module cuts the glass fiber cloth into a plurality of cloth pieces according to the cloth cutting parameters, and the cloth spreading module spreads the plurality of cloth pieces layer by layer on the transmission platform according to the cloth spreading parameters; The unsaturated polyester between the multi-layer fabric pieces is melted by the microwave heating unit of the heating module, and the heated multi-layer fabric pieces are cooled and shaped by the cooling zone of the cooling module; The multi-layered cloth sheet structure after cooling and shaping is cut or polished to complete the processing of the prefabricated part.

8. The method for processing a prefabricated wind turbine blade according to claim 7, characterized in that: The cloth cutting parameters include the number of cloth pieces and corresponding size parameters, and the cloth spreading parameters include the laying order and laying positions of the cloth pieces; The control center determines the cutting area and cutting contour of the glass fiber cloth surface according to the number and size parameters of the cloth pieces required for the preform to be processed, and the size of the cutting contour is larger than the size of the required cloth pieces; After determining the laying order of the cloth pieces, the laying positions of the cloth pieces to be laid are sent to the projection unit of the cloth laying module, and the projection coordinates are corrected by the projection unit and the positioning projection is projected to the transmission platform to assist manual cloth laying operations.

9. The method for processing a prefabricated wind turbine blade according to claim 8, characterized in that: The transmission platform is driven by the first conveyor belt, the second conveyor belt and the third conveyor belt in the conveying module to pass through the projection unit, the microwave heating unit and the cooling zone in sequence; The manual spreading time t1 of the cloth cutting module is expressed by the following formula: t1=nT; The microwave heating time t2 of the heating module is expressed by the following formula: t2=s / v=6000*M*ΔT / P; t2<t1; Wherein, T represents the time required for manual laying and powdering of a cloth sheet, n represents the number of cloth sheets required for the preform to be processed, M represents the mass of the multi-layer cloth sheets transported to the heating module, ΔT represents the temperature difference before and after the multi-layer cloth sheets are heated, and P represents the heating power.

10. The method for processing a prefabricated wind turbine blade according to claim 7, characterized in that: The laid multi-layer cloth sheet is heated to 125° by the microwave heating unit, the ambient temperature is reduced to 20° by the air conditioner, and a circulating fan is added in the cooling zone to cool the heated multi-layer cloth sheet structure to 50° to completely set.

Images