Wind power blade forming device, wind power blade forming method and wind power blade

Abstract

The invention relates to a wind power blade forming device, a wind power blade forming method and a wind power blade. The wind power blade forming device comprises a base, a flexible part, a vacuumizing assembly and a first cooling assembly. The edge of the flexible part is in sealed connection with the base to form a forming cavity, and the forming cavity is used for containing forming materials. The vacuumizing assembly comprises a vacuum pump and a first pipeline communicated with the vacuum pump. The first cooling assembly comprises a second pipeline and a circulating pump connected to the second pipeline. The flexible part is provided with a first communication port communicated with the forming cavity, the base is provided with a second communication port communicated with the forming cavity, the first communication port is alternatively communicated with the first pipeline and the second pipeline, and when the first communication port is communicated with the first pipeline, the second communication port is closed; when the first communication port is communicated with one end of the second pipeline, the other end of the second pipeline is communicated with the second communication port. According to the wind power blade forming device, the cooling efficiency of the wind power blade in the forming process can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of wind turbine blade preparation, and in particular to a wind turbine blade forming device, a wind turbine blade forming method, and a wind turbine blade. Background Art

[0002] Wind turbine blades are one of the core components of wind turbines. Their main function is to convert wind energy into mechanical energy, thereby driving the generator to generate electricity.

[0003] Because wind turbine blades are composite components, their key structural components, such as the skin and web, as well as the final product, are comprised of multiple layers of molding material. During the actual manufacturing process, these layers are typically bonded together through resin infusion. To ensure the molding quality of wind turbine blades and key structural components, temperature control and cooling measures are required during the molding process. Summary of the Invention

[0004] The wind turbine blade forming device, wind turbine blade forming method and wind turbine blade provided in the embodiments of the present application can improve the cooling efficiency of the wind turbine blade during the forming process.

[0005] In a first aspect, an embodiment of the present application provides a wind turbine blade forming device, comprising:

[0006] A base including a molding surface in contact with a molding material for molding a wind turbine blade;

[0007] a flexible member, wherein an edge of the flexible member is sealed with the base, and the flexible member and the molding surface enclose a molding cavity, and the molding cavity is used to accommodate the molding material;

[0008] A vacuum pump assembly, comprising a vacuum pump and a first pipe connected to the vacuum pump;

[0009] A first cooling assembly includes a second pipeline and a circulation pump connected to the second pipeline;

[0010] In which, the flexible part is provided with a first communicating port connected to the forming cavity, and the base is provided with a second communicating port connected to the forming cavity. The first communicating port is selectively connected to the first pipe and the second pipe. When the first communicating port is connected to the first pipe, the second communicating port is closed; when the first communicating port is connected to one end of the second pipe, the other end of the second pipe is connected to the second communicating port.

[0011] In some embodiments, the first cooling assembly further comprises a first cooling member, the second pipe comprises a first portion and a second portion that are interconnected, the first cooling member is connected between the first portion and the second portion, and the circulation pump is connected to the second portion or the first portion;

[0012] The first part is connected between the first cooling element and the first communicating port, and a first control element is provided on the first part, and the first control element is used to control the on and off of the first part;

[0013] The second part is connected between the first cooling member and the second communicating port. A second control member is provided on the second part. The second control member is used to control the on and off of the second part.

[0014] In some embodiments, a plurality of second communication ports are provided, and the plurality of second communication ports are spaced apart and distributed on the base;

[0015] The second pipe includes a plurality of second parts, which are arranged in a one-to-one correspondence with the second connecting ports. Each second part is connected to the first cooling member, and an end of each second part away from the first cooling member is connected to the second connecting port.

[0016] In some embodiments, the flexible member includes a first flexible portion and a second flexible portion connected to each other, the first flexible portion is located on a side of the molding material facing away from the molding surface, the second flexible portion is located on a peripheral side of the molding material, and the second flexible portion is connected to the base;

[0017] The wind turbine blade forming device further includes a second cooling component, which is arranged on a side of the first flexible portion facing away from the forming cavity, and the second cooling component is arranged in contact with the first flexible portion.

[0018] In some embodiments, the second cooling assembly includes a plurality of spaced-apart second cooling elements, and the plurality of second cooling elements are independently controlled;

[0019] The second cooling members are all arranged on the first flexible portion.

[0020] In some embodiments, the first flexible portion is provided with a plurality of spaced-apart through holes, and the second cooling member is provided between adjacent through holes;

[0021] The wind turbine blade forming device also includes a temperature and humidity detection component, which includes a plurality of detection probes. At least part of the detection probes is located inside the forming cavity, part of the detection probes is passed through the through hole, and part of the detection probes is arranged in the gap space between adjacent second cooling parts.

[0022] In a second aspect, an embodiment of the present application provides a method for forming a wind turbine blade, comprising:

[0023] Providing a base and a molding material, and placing the molding material on the molding surface of the base;

[0024] Laying a flexible member, the flexible member covering the molding material, the edge of the flexible member contacting and sealingly connecting with the base to form a molding cavity, the flexible member being provided with a first communication port communicating with the molding cavity, and the base being provided with a second communication port communicating with the molding cavity;

[0025] The interior of the molding cavity is vacuumed and maintained at a preset vacuum degree, the first connecting port is connected to a vacuuming component, the second connecting port is closed, and the vacuuming component vacuums the molding cavity;

[0026] pouring adhesive into the molding cavity;

[0027] Heating the molding material and maintaining a preset temperature, and curing the molding material and the adhesive to obtain a blade blank;

[0028] To cool the blade blank, both the first connecting port and the second connecting port are connected to a first cooling component, and the first cooling component circulates air into the interior of the forming cavity.

[0029] In some embodiments, in providing the base and the molding material, the molding material is divided into a plurality of sub-regions distributed side by side;

[0030] The first cooling component forms a first cooling area on the side of the blade blank facing away from the forming cavity. The first cooling area includes a plurality of first cooling sub-areas distributed side by side. The base is provided with a second connecting port in each of the first cooling sub-areas. The first cooling sub-areas in the first cooling area are arranged in one-to-one correspondence with the sub-areas in the forming material.

[0031] In some embodiments, the step of evacuating the interior of the molding cavity and maintaining a preset vacuum degree includes providing a second cooling component on a side of the flexible member facing away from the molding cavity, the second cooling component being in contact with the flexible member, and cooling the molding material by the second cooling component;

[0032] Cooling the blade blank includes cooling the molding material by using the second cooling component.

[0033] In some embodiments, in providing the base and the molding material, the molding material is divided into a plurality of sub-regions distributed side by side;

[0034] The second cooling component forms a second cooling area on the side of the flexible member away from the molding cavity. The second cooling area includes a plurality of second cooling sub-areas distributed side by side. The second cooling sub-areas in the second cooling area are arranged in a one-to-one correspondence with the sub-areas in the molding material.

[0035] In some embodiments, a detection probe for detecting temperature and humidity is provided in each of the sub-areas.

[0036] In a third aspect, an embodiment of the present application provides a wind turbine blade, wherein the wind turbine blade is produced by the wind turbine blade forming device; and / or the wind turbine blade is produced by the wind turbine blade forming method.

[0037] According to the wind turbine blade forming device, wind turbine blade forming method, and wind turbine blade provided in the present application, the wind turbine blade forming device includes a base, a flexible member, and a vacuum assembly. The base includes a molding surface that contacts the molding material used to form the wind turbine blade. During the wind turbine blade preparation process, the required molding material is sequentially placed on the molding surface, and the base supports the molding material. The edge of the flexible member is sealed to the base, and the flexible member and the molding surface enclose a molding cavity, which covers the molding material. After the base supports the molding material used to form the wind turbine blade, the flexible member is placed on the molding material, and the flexible member and the molding surface surround the molding material. The flexible member is provided with a first connecting port that communicates with the interior of the molding cavity. The vacuum assembly includes a vacuum pump and a first pipe connected to the vacuum pump, and the first pipe can communicate with the first connecting port. When the first pipe is connected to the first connecting port, the vacuum pump can perform a vacuum operation on the interior of the molding cavity to maintain a certain degree of negative pressure inside the molding cavity. The wind turbine blade forming device also includes a first cooling component, which includes a second pipe. The second pipe can also be connected to the first connecting port. When the second pipe is connected to the first connecting port, the first cooling component can transport a cooling medium to the interior of the forming cavity through the second pipe to cool the blank structure of the skin located inside the forming cavity. The vacuum operation is performed by the first connecting port, and the air cooling of the first cooling component is also performed by the first connecting port. The first connecting port is selectively connected to the first pipe and the second pipe, thereby switching between the vacuum operation and the cooling operation. Through the above arrangement, the first cooling component can be directly connected to the interior of the forming cavity, which can improve the heat exchange efficiency during the wind turbine blade manufacturing process, thereby improving the cooling efficiency of the blank skin. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The features, advantages and technical effects of exemplary embodiments of the present application will be described below with reference to the accompanying drawings.

[0039] Figure 1A first structural schematic diagram of a wind turbine blade forming device provided in some embodiments of the present application;

[0040] Figure 2 A second structural schematic diagram of a wind turbine blade forming device provided in some embodiments of the present application;

[0041] Figure 3 A schematic diagram of the coordination structure between the molding material and the detection probe in a wind turbine blade molding method provided in some embodiments of the present application;

[0042] Figure 4 A schematic flow chart of a wind turbine blade forming method provided in some embodiments of the present application.

[0043] Marking Description:

[0044] 10. Base; 11. Molding surface;

[0045] 20. Flexible member; 21. First flexible portion; 22. Second flexible portion;

[0046] 30. Vacuum assembly; 31. Vacuum pump;

[0047] 40. First cooling assembly; 41. Circulation pump; 42. First cooling element;

[0048] 50. Second cooling assembly; 51. Second cooling element;

[0049] 60. Temperature and humidity detection component; 61. Detection probe; 62. Display structure;

[0050] Q, molding cavity; M, molding material;

[0051] G1, first pipeline; G2, second pipeline; G21, first part; G22, second part; G3, main pipeline;

[0052] K1, first communication port; K2, second communication port; K3, through hole; K4, detection hole;

[0053] F1, first control element; F2, second control element; F3, third control element.

[0054] In the drawings, like parts are given like reference numerals, but the drawings are not necessarily drawn to scale. DETAILED DESCRIPTION

[0055] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, rather than to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is merely to provide a better understanding of the present application by illustrating the examples of the present application.

[0056] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "include..." do not exclude the presence of other identical elements in the process, method, article or device that includes the elements.

[0057] Wind turbine blades are one of the core components of wind turbines. Their main function is to convert wind energy into mechanical energy, thereby driving the generator to generate electricity.

[0058] Since wind turbine blades are composite components, their key structural parts such as skins and webs, as well as the final product, all consist of multiple layers of molding materials. In the actual preparation process, resin infusion is usually used to achieve bonding between the multiple layers of molding materials. During the infusion process, the multiple layers of molding material are laid inside the mold, and the resin penetrates from the surface of the multiple layers of molding material to the inside. During the infiltration process, the resin will release heat to a certain extent, increasing the temperature of the molding material and the mold, which may cause a large amount of molecular gas to overflow or volatilize, affecting the connection between the multiple layers of molding materials. Therefore, it is necessary to control the corresponding temperature during the infusion process and take certain cooling measures.

[0059] At the same time, the mold usually has a structure with half side closed and half side open. After the multi-layer molding materials are connected together, the surface temperature on the closed side of the mold is higher than the surface temperature on the open side of the mold. The molding material has inconsistent surface temperatures on both sides, and certain cooling measures are also needed to make the temperatures on both sides uniform.

[0060] Furthermore, with the gradual increase in wind turbine blade size in recent years, it has become difficult to improve the cooling efficiency of the corresponding structural components of wind turbine blades, affecting the efficiency of wind turbine blade production. When the length of wind turbine blades is extended from 50 meters to 150 meters, the increase in wind turbine blade size leads to a larger surface area, and the surface area requiring bonding and cooling also increases, greatly increasing the difficulty of cooling and affecting the cooling efficiency.

[0061] In view of this, first of all, please refer to Figure 1 and Figure 2 The embodiment of the present application provides a wind turbine blade molding device, comprising a base 10, a flexible member 20, a vacuum assembly 30, and a first cooling assembly 40. The base 10 includes a molding surface 11 that contacts a molding material M for molding wind turbine blades. The edge of the flexible member 20 is sealed with the base 10, and the flexible member 20 and the molding surface 11 enclose a molding cavity Q, which is used to accommodate the molding material M. The vacuum assembly 30 includes a vacuum pump 31 and a first pipe G1 connected to the vacuum pump 31. The first cooling assembly 40 includes a second pipe G2 and a circulation pump 41 connected to the second pipe G2. Among them, the flexible part 20 is provided with a first connecting port K1 connected to the molding cavity Q, and the base 10 is provided with a second connecting port K2 connected to the molding cavity Q. The first connecting port is selectively connected to the first pipe G1 and the second pipe G2. When the first connecting port K1 is connected to the first pipe G1, the second connecting port K2 is closed; when the first connecting port K1 is connected to one end of the second pipe G2, the other end of the second pipe G2 is connected to the second connecting port K2.

[0062] The wind turbine blade forming device provided in the embodiment of the present application is particularly suitable for large-sized wind turbine blades, and improves the cooling efficiency of large-sized wind turbine blades, thereby improving the preparation efficiency of large-sized wind turbine blades. The wind turbine blade forming device provided in the embodiment of the present application can be used to form the skin in the wind turbine blade. In the forming process of the skin, a multi-layer forming material M is needed. The technicians lay the multi-layer forming material M on the forming surface 11 in sequence, and then use the flexible part 20 to cover the multi-layer forming material M, and form a forming cavity Q between the flexible part 20 and the forming surface 11. The technicians then perform a vacuum operation and pour adhesive into the inside of the forming cavity Q to bond the multi-layer forming material M into a whole, thereby forming a skin. Alternatively, the embodiment of the present application can also be used to form the web in the wind turbine blade. In the forming process of the web, a multi-layer forming material M is needed. The technicians also bond the multi-layer forming material M used to form the web into a whole to complete the forming of the web. Alternatively, the wind turbine blade forming device provided in the embodiment of the present application can be used for the integral molding preparation of the skin and the web. The technician lays the multi-layer molding material M of the skin and the multi-layer molding material M of the web layer by layer according to a preset order, and then forms the multi-layer molding material M into a whole to achieve the integral molding of the skin and the web. Alternatively, the wind turbine blade forming device provided in the embodiment of the present application can be used to prepare other specific structural parts with multi-layer molding materials in the wind turbine blade. The above-mentioned wind turbine blade forming device is used in the molding process of the wind turbine blade, and its specific preparation object can be a single structural part in the wind turbine blade or a wind turbine blade. For the convenience of description and introduction, the following preparation process is introduced by taking the preparation of the skin as an example.

[0063] Specifically, the wind turbine blade forming device provided in the embodiment of the present application includes a base 10, a flexible member 20 and a vacuum assembly 30. The base 10 includes a forming surface 11 in contact with the forming material M used to form the skin. During the skin preparation process, the required forming materials M are sequentially laid on the forming surface 11, and the base 10 supports the forming material M. Optionally, the base 10 can be a mold in the skin forming process, and the mold is provided with a forming surface 11. Alternatively, the base 10 can be a plate-like structure, and the plate-like base 10 has a supporting surface, which serves as the forming surface 11. In other words, the base 10 can be capable of supporting the forming material M used to form the skin.

[0064] The edges of the flexible member 20 are sealed to the base 10. The flexible member 20 and the molding surface 11 enclose a molding cavity Q for accommodating the molding material M. After the base 10 supports the molding material M used to form the skin, the flexible member 20 is placed over the molding material M. It should be noted that the flexible member 20 must be large enough to cover the entire molding material M and be sealed to the base 10 while doing so. The flexible member 20 and the molding surface 11 enclose the molding material M.

[0065] To achieve vacuuming of the interior of the molding cavity Q, the flexible member 20 is provided with a first communication port K1 that communicates with the interior of the molding cavity Q. The vacuuming assembly 30 includes a vacuum pump 31 and a first conduit G1 that communicates with the vacuum pump 31. The first conduit G1 is capable of communicating with the first communication port K1. When the first conduit G1 is connected to the first communication port K1, the vacuum pump 31 can evacuate the interior of the molding cavity Q, thereby maintaining a certain degree of negative pressure within the molding cavity Q.

[0066] Furthermore, in order to improve the cooling efficiency of the skin during the molding process and comprehensively utilize the structure used in the molding process of the skin, the wind turbine blade molding device in the embodiment of the present application also includes a first cooling component 40, and the first cooling component 40 includes a second pipe G2. The second pipe G2 can also be connected to the first connecting port K1. When the second pipe G2 is connected to the first connecting port K1, the first cooling component 40 can transport the cooling medium to the inside of the molding cavity Q through the second pipe G2 to cool the blank structure of the skin located inside the molding cavity Q.

[0067] Optionally, the first cooling component 40 blows air into the molding cavity Q to cool the blank structure of the skin by air cooling. The airflow entering the molding cavity Q can flow on the surface of the blank structure of the skin, thereby performing heat exchange on the blank structure of the skin and reducing the temperature of the blank structure of the skin.

[0068] Furthermore, considering that the molding cavity Q is a sealed structure, in order to facilitate the circulation of the cooling airflow within the molding cavity Q by the first cooling assembly 40, a second connecting port K2 is provided on the base 10, which is connected to the interior of the molding cavity Q. When the first connecting port K1 is connected to the second pipe G2, the other end of the second pipe G2 is connected to the second connecting port K2. The molding cavity Q, the first connecting port K1, the second pipe G2, and the second connecting port K2 form a circulation path. The airflow circulates in this circulation path to cool the skin blank located within the molding cavity Q. The first cooling assembly 40 also includes a circulation pump 41 connected to the second pipe G2. The circulation pump 41 provides circulation power for the circulation of the airflow to ensure the circulation efficiency of the airflow, thereby ensuring the airflow's efficiency in cooling the skin blank structure.

[0069] Optionally, an isolation membrane can be placed inside the molding cavity Q, with the isolation membrane being sealed against the base 10. The isolation membrane separates the molding cavity into a first cavity and a second cavity that are not interconnected. The molding material M is located in the first cavity, and the first communication port K1 can independently connect the first cavity and the second cavity. When vacuuming is required, the first communication port K1 connects to the first cavity, and when cooling is required, the first communication port K1 connects to the second cavity. The first cooling assembly 40 can circulate cooling liquid into the second cavity through liquid cooling to reduce the temperature of the skin blank structure.

[0070] During the skin forming process, typically during the vacuum infusion of adhesive, the forming cavity Q is evacuated. Under a certain negative pressure, the adhesive penetrates between the multiple layers of forming material M, bonding them together and forming a blank. After the forming material M is formed into a blank, it needs to be cooled. The vacuuming operation is performed by the first connecting port K1. Air cooling by the first cooling assembly 40 is also performed through the first connecting port K1. The first connecting port K1 is alternatively connected to the first duct G1 or the second duct G2, allowing switching between vacuuming and cooling operations. When the first connecting port K1 is connected to the first duct G1, the vacuuming assembly 30 evacuates the interior of the forming cavity Q. To ensure effective vacuuming, the second connecting port K2 is sealed. When the first connecting port K1 is connected to the second duct G2, the first cooling assembly 40 cools the interior of the forming cavity Q. The first and second connecting ports K1 and K2 are respectively connected to the ends of the second duct G2, completing a cooling cycle for the blank. Through this arrangement, the vacuum assembly and the first cooling assembly 40 share the first communication port K1, simplifying the structural configuration of the wind turbine blade forming apparatus and improving structural utilization. Furthermore, the first cooling assembly 40 can be directly connected to the interior of the forming cavity Q, thereby improving the heat exchange efficiency of the skin blank structure and thus enhancing the cooling efficiency of the skin blank structure.

[0071] In summary, in the embodiment of the present application, a wind turbine blade forming device includes a base 10, a flexible member 20, and a vacuum assembly 30. The base 10 includes a molding surface 11 that contacts a molding material M used to form a wind turbine blade. During the wind turbine blade preparation process, the required molding material M is sequentially placed on the molding surface 11, and the base 10 supports the molding material M. The edge of the flexible member 20 is sealed to the base 10, and the flexible member 20 and the molding surface 11 enclose a molding cavity Q for containing the molding material M. After the base 10 supports the molding material M used to form the wind turbine blade, the flexible member 20 is placed over the molding material M, and the flexible member 20 and the molding surface 11 enclose the molding material M. The flexible member 20 is provided with a first communication port K1 that communicates with the interior of the molding cavity Q. The vacuum assembly 30 includes a vacuum pump 31 and a first conduit G1 connected to the vacuum pump 31. The first conduit G1 can communicate with the first communication port K1. When the first conduit G1 is connected to the first communication port K1, the vacuum pump 31 can evacuate the interior of the forming cavity Q to maintain a certain negative pressure within the forming cavity Q. The wind turbine blade forming apparatus also includes a first cooling assembly 40, which includes a second conduit G2. The second conduit G2 can also be connected to the first communication port K1. When the second conduit G2 is connected to the first communication port K1, the first cooling assembly 40 can deliver a cooling medium through the second conduit G2 into the forming cavity Q to cool the wind turbine blade blank structure within the forming cavity Q. The vacuuming operation is performed by the first communication port K1, and air cooling by the first cooling assembly 40 is also performed by the first communication port K1. The first communication port K1 is alternatively connected to either the first conduit G1 or the second conduit G2, thereby switching between vacuuming and cooling operations. This configuration allows the first cooling assembly 40 to directly connect to the interior of the forming cavity Q, improving the heat exchange efficiency of the wind turbine blade blank structure, thereby improving the cooling efficiency of the wind turbine blade blank structure.

[0072] In some embodiments, see Figure 1 and Figure 2 The first cooling assembly 40 also includes a first cooling member 42. The second pipeline G2 includes a first portion G21 and a second portion G22 that are interconnected. The first cooling member 42 is connected between the first portion G21 and the second portion G22. The circulating pump 41 is connected to the second portion G22 or the first portion G21. The first portion G21 is connected between the first cooling member 42 and the first connecting port K1. The first portion G21 is provided with a first control member F1 for controlling the on / off of the first portion G21. The second portion G22 is connected between the first cooling member 42 and the second connecting port K2. The second portion G22 is provided with a second control member F2 for controlling the on / off of the second portion G22.

[0073] In the embodiments of this application, for ease of description and understanding, the first cooling assembly 40 is used as an example to describe the cooling of the skin blank structure located within the forming cavity Q through air cooling. Specifically, when the relatively low-temperature airflow enters the forming cavity Q and exchanges heat with the relatively high-temperature skin blank structure, the airflow temperature will increase to a certain extent. In other words, after the airflow flows out of the forming cavity Q, its temperature is higher than when it entered the forming cavity Q.

[0074] In order to improve the cooling efficiency of the skin blank structure located inside the molding cavity Q, the first cooling assembly 40 also includes a first cooling member 42, which is used to reduce the temperature of the air flow after flowing out of the molding cavity Q to ensure that the air flow has a relatively lower temperature when it flows into the molding cavity Q again, thereby ensuring the cooling efficiency of the skin blank structure located inside the molding cavity Q.

[0075] Specifically, the second conduit G2 includes a first portion G21 and a second portion G22 that are interconnected. A first cooling member 42 is connected between the first portion G21 and the second portion G22. The first portion G21 is connected between the first cooling member 42 and the first connecting port K1, and the second portion G22 is connected between the first cooling member 42 and the second connecting port K2. When air flows through the second conduit G2, it can flow through the first cooling member 42. The circulation pump 41 is connected to the second portion G22 or the first portion G21, thereby increasing the power for the airflow to circulate in the second conduit G2. Considering that the side of the molding material M that contacts the molding surface 11 is located at the bottom, its temperature during the preparation process is higher than that on the side of the molding material M that faces away from the molding surface 11. Therefore, the airflow can flow into the molding cavity Q through the second connecting port K2 and flow out of the molding cavity Q through the first connecting port K1.

[0076] For example, taking the first cooling member 42 as the source of the airflow circulation, under the action of the first cooling member 42, the airflow has a relatively low temperature. The airflow flows into the molding cavity Q from the second connecting port K2 along the second portion G22, and exchanges heat with the skin blank structure located inside the molding cavity Q. During the heat exchange process, the temperature of the airflow increases, while the temperature of the skin blank structure decreases. The airflow then flows into the molding cavity Q from the first connecting port K1, flows along the first portion G21 to the first cooling member 42, and under the action of the first cooling member 42, the temperature of the airflow decreases. The airflow flowing into the first cooling member 42 continues to circulate again along the second portion G22. The circulation process is the same as described above. Through the above-mentioned circulation process, the skin blank structure is cooled.

[0077] Furthermore, the first portion G21 is provided with a first control element F1 for controlling the on / off state of the first portion G21. The second portion G22 is provided with a second control element F2 for controlling the on / off state of the second portion G22. The first and second control elements F1 and F2 comprise valve structures that control the on / off state of the first and second portions G21 and G22, respectively.

[0078] In the embodiment of the present application, the cooling of the skin blank structure can be controlled by switching the first and second control components F1 and F2 on and off. Specifically, as air flows along the second portion G22 through the second connecting opening K2 into the forming cavity Q, the second control component F2 controls the flow of the second portion G22, while the first control component F1 controls the shutoff of the first portion G21. The airflow is restricted to the forming cavity Q and cannot immediately exit, allowing sufficient heat exchange between the airflow and the skin blank structure. After sufficient heat exchange between the airflow and the skin blank structure, the second control component F2 shuts off the second portion G22, while the first control component F1 controls the flow of the first portion G21. The airflow then flows out of the forming cavity Q through the first portion G21 and enters the first cooling element 42. The configuration of the first and second control components F1 and F2 allows the degree of heat exchange between the airflow and the skin blank structure to be controlled, thereby improving airflow utilization and reducing energy loss during the cooling process.

[0079] In some embodiments, see Figure 1 and Figure 2 A plurality of second communication ports K2 are provided, and the plurality of second communication ports K2 are spaced apart on the base 10. The second pipe G2 includes a plurality of second portions G22, which are arranged in a one-to-one correspondence with the second communication ports K2. Each second portion G22 is connected to the first cooling member 42, and the end of each second portion G22 away from the first cooling member 42 is connected to the second communication port K2.

[0080] Considering the large volume of the skin blank structure, in order to improve the cooling efficiency of the skin blank structure, multiple second communication ports K2 can be provided, and the multiple second communication ports K2 are spaced apart on the base 10. The base 10 supports the molding material M and has a certain strength and rigidity. The provision of multiple second communication ports K2 on the base 10 does not affect the support effect of the base 10 on the molding material M. At the same time, it can also allow airflow to enter the molding cavity Q from different positions, thereby cooling different positions of the skin blank structure.

[0081] Specifically, the second conduit G2 includes multiple second portions G22, each of which corresponds to a second communication port K2. Each second portion G22 is connected to the first cooling member 42, and the end of each second portion G22 away from the first cooling member 42 is connected to the second communication port K2. After cooling the airflow through the first cooling member 42, the airflow can flow along the multiple second portions G22 through the multiple second communication ports K2 and enter the molding cavity Q, corresponding to different locations on the skin blank structure. This allows the airflow to simultaneously cool different locations on the skin blank structure, thereby improving the cooling efficiency of the skin blank structure.

[0082] Optionally, multiple first communication ports K1 may be provided, and the second conduit G2 includes multiple first portions G21, each of which corresponds to a first communication port K1. Each first portion G21 is connected to the first cooling member 42, and each first portion G21 is connected to the first communication port K1 at one end away from the first cooling member 42. Providing multiple first communication ports K1 and first portions G21 can increase the speed of airflow out of the molding cavity Q, thereby improving the efficiency of airflow circulation and, in turn, the efficiency of cooling the skin blank structure.

[0083] In some embodiments, see Figure 1 and Figure 2 The flexible member 20 includes a first flexible portion 21 and a second flexible portion 22 that are interconnected. The first flexible portion 21 is located on the side of the molding material M facing away from the molding surface 11, and the second flexible portion 22 is located around the molding material M. The second flexible portion 22 is connected to the base 10. The wind turbine blade molding device also includes a second cooling assembly 50. The second cooling assembly 50 is disposed on the side of the first flexible portion 21 facing away from the molding cavity Q and is disposed in contact with the first flexible portion 21.

[0084] After placing the molding material M on the molding surface 11, a flexible member 20 is disposed on the side of the molding material M facing away from the molding surface 11. The flexible member 20 needs to cover the molding material M, and the edge of the flexible member 20 is sealed to the base 10 so that the flexible member 20 and the molding surface 11 enclose a mold cavity Q. Specifically, the flexible member 20 includes a first flexible portion 21 and a second flexible portion 22 that are interconnected. The second flexible portion 22 is located around the first flexible portion 21. The first flexible portion 21 is located on the side of the molding material M facing away from the molding surface 11, and the second flexible portion 22 is located around the molding material M. The second flexible portion 22 is connected to the base 10.

[0085] In order to further improve the cooling efficiency of the skin blank structure, a second cooling component 50 is provided on the side of the first flexible portion 21 away from the molding cavity Q, and the second cooling component 50 is provided in contact with the first flexible portion 21. The molding material M also has a certain strength and toughness, and can provide a certain support to the first flexible portion 21. The second cooling component 50 is provided on the first flexible portion 21, which can be supported by the molding material M, thereby facilitating the arrangement of the second cooling component 50. The second cooling component 50 can cool the molding material M through the first flexible portion 21, thereby improving the cooling efficiency of the molding material M and the skin blank structure. Since the second cooling component 50 is provided outside the molding cavity Q, it cools the molding material M through the first flexible portion 21 and does not directly contact the molding material M. The second cooling component 50 can be used in various stages of the molding of the wind turbine blade. The specific usage is introduced in the wind turbine blade molding method provided in the second aspect of this application, and will not be described in detail here.

[0086] Among them, the first flexible portion 21 has good sealing and thermal conductivity, so as to facilitate sealing and covering the molding material M and heat exchange between the second cooling component 50 and the molding material M. The second flexible portion 22 has good strength and sealing, so as to facilitate stable and reliable connection with the base 10 and sealing and covering the molding material M. Optionally, the flexible member 20 can be provided with multiple layers, and the multiple layers of flexible members 20 are stacked to improve the sealing performance of the molding material M. For example, the flexible member 20 can be provided with two layers, which can not only improve the sealing performance of the flexible member 20 to the molding material M, but also achieve good heat exchange between the second cooling component 50 and the molding material M.

[0087] In some embodiments, see Figure 1 and Figure 2 The second cooling assembly 50 includes a plurality of second cooling members 51 spaced apart from each other, and the plurality of second cooling members 51 are independently controlled. The second cooling members 51 are all disposed on the first flexible portion 21 .

[0088] When the first cooling assembly 40 and the second cooling assembly 50 are provided simultaneously, the first cooling assembly 40 is located on both sides of the skin blank structure for cooling. Considering the large volume of the skin blank structure, in order to improve the cooling efficiency of the second cooling assembly 50 on the skin blank structure, the second cooling assembly 50 includes second cooling members 51 distributed at intervals. The multiple second cooling members 51 can correspond to different positions of the first flexible portion 21, and thus correspond to different positions of the skin blank structure, to improve the cooling efficiency of the second cooling assembly 50 on the skin blank structure. The multiple second cooling members 51 are independent of each other, and the cooling processes at different positions of the skin blank structure do not affect each other.

[0089] Furthermore, the second cooling component 50 is preferably set to a water-cooled form, and the second cooling part 51 is set to a circulating ice water blanket. The circulating ice water blanket can produce a certain compression effect on the first flexible part 21, so that the first flexible part 21 is in close contact with the molding material M, thereby improving the covering stability of the flexible part 20 on the molding material M.

[0090] In some embodiments, see Figure 1 and Figure 2 The first flexible portion 21 is provided with a plurality of spaced-apart through-holes K3, with the second cooling element 51 positioned between adjacent through-holes K3. The wind turbine blade forming device further includes a temperature and humidity detection assembly 60, which comprises a plurality of communicatively connected detection probes 61 and a display structure 62. At least a portion of the detection probes 61 is positioned within the forming cavity Q, a portion of the detection probes 61 is positioned within the through-holes K3, and a portion of the detection probes 61 is positioned within the gaps between adjacent second cooling elements 51. The display structure 62 displays the temperature and humidity detected by the detection probes 61 in real time.

[0091] Since the skin blank structure has a large structural size, during the cooling process, different cooling rates are inevitably present at various locations of the skin blank structure, resulting in different temperatures in different areas. In order to monitor the cooling process of the skin blank structure, a temperature and humidity monitoring component is also included. The temperature and humidity monitoring component includes a detection probe 61 and a display structure 62 that are communicatively connected. At least a portion of the detection probe 61 is located inside the molding cavity Q, and the display structure 62 displays the temperature and humidity detected by the detection probe 61 in real time. Furthermore, at least a portion of the detection probe 61 is disposed inside the molding material M, and multiple detection probes 61 are respectively disposed at different areas of the molding material M to detect the temperature and humidity inside the molding material M at different areas.

[0092] Taking into account that a second cooling assembly 50 is also provided on the side of the first flexible portion 21 facing away from the molding cavity Q, in order to facilitate the setting of the detection probe 61 and the second cooling member 51, a plurality of through holes K3 are provided on the first flexible portion 21. The through holes K3 and the detection probes 61 are arranged one-to-one correspondingly, and the second cooling member 51 is arranged between adjacent through holes K3. At least part of the detection probe 61 is arranged inside the gap space between adjacent second cooling members 51 to reduce the probability of structural interference between the detection probe 61 and the second cooling member 51.

[0093] In some embodiments, see Figure 2The wind turbine blade forming device also includes a main pipeline G3 connected to the first connecting port K1. The first pipeline G1 and the second pipeline G2 are connected in parallel to the main pipeline G3. The end of the first pipeline G1 remote from the main pipeline G3 is connected to the vacuum pump 31. The first pipeline G1 is provided with a third control member F3 for controlling the opening and closing of the first pipeline G1. The end of the second pipeline G2 remote from the main pipeline G3 is connected to the second connecting port K2. The second pipeline G2 is provided with a second control member F2 for controlling the opening and closing of the second pipeline G2.

[0094] To facilitate switching between the first connecting port K1 and the second conduit G1 and G2, a main conduit G3 is provided between the first connecting port K1 and both the first and second conduits G1 and G2, and the first and second conduits G1 and G2 are connected in parallel to the main conduit G3. When the vacuum pump assembly 30 needs to evacuate the interior of the molding cavity Q through the first connecting port K1, the second control element F2 shuts off the second conduit G2, while the first control element F1 controls the flow of air through the first conduit G1. The vacuum pump 31 then evacuates the interior of the molding cavity Q through the first connecting port K1. When the first cooling assembly 40 needs to cool the interior of the molding cavity Q through the first connecting port K1, the first control element F1 shuts off the first conduit G1, and the first cooling assembly 40 cools the interior of the molding cavity Q through the second conduit G2.

[0095] Second, see Figure 3 and Figure 4 , an embodiment of the present application provides a method for forming a wind turbine blade, comprising:

[0096] S10 , providing a base 10 and a molding material M, and placing the molding material M on the molding surface 11 of the base 10 .

[0097] S20. Lay the flexible part 20, the flexible part 20 covers the molding material M, the edge of the flexible part 20 contacts and is sealed with the base 10 to form a molding cavity Q, a first connecting port K1 communicating with the molding cavity Q is provided on the flexible part 20, and a second connecting port K2 communicating with the molding cavity Q is provided on the base 10.

[0098] S30 , vacuuming the interior of the molding cavity Q and maintaining a preset vacuum degree, connecting the first connecting port K1 to the vacuuming component 30 , closing the second connecting port K2 , and vacuuming the molding cavity Q with the vacuuming component 30 .

[0099] S40, pouring adhesive into the molding cavity Q.

[0100] S50 , heating the molding material M and maintaining the preset temperature, so that the molding material M and the adhesive are cured to obtain a blade blank.

[0101] S60 , cooling the blade blank, connecting the first connecting port K1 and the second connecting port K2 to the first cooling assembly 40 , and the first cooling assembly 40 blows circulating air into the molding cavity Q.

[0102] In S10, providing the base 10 and the molding material M, the molding surface 11 of the base 10 is cleaned and coated with a release agent. Auxiliary materials such as a release cloth are laid before laying the molding material M. The molding material M includes an outer layer, an outer reinforcement layer, a sandwich molding material M, a fabric laminate, an inner reinforcement layer, and an inner surface layer. During the laying process of the molding material M, the outer layer and the outer reinforcement layer are laid on the molding surface 11, and structural prefabricated parts such as beams and blade roots are placed using a sling; and above the outer reinforcement layer, along a designated area, the sandwich molding material M and the fabric laminate are laid in sequence, followed by the corresponding inner reinforcement layer and inner surface layer. After the molding material M is laid, auxiliary materials such as a release cloth are laid on the surface, and then the second step S20, laying the flexible part 20, is carried out.

[0103] During S20 , when laying the flexible member 20 , before the flexible member 20 covers the molding material M, an isolation film and a flow guide net are laid in designated positions, and a glue injection channel and a glue injection port are formed. The glue injection port is connected to an external adhesive feed pipe, and a portion of the molding material M is provided corresponding to the first communication port K1. The flexible member 20 includes a vacuum film and can be provided in multiple layers, each of which is connected to the base 10 .

[0104] In S30, when the interior of the molding cavity Q is evacuated and the preset vacuum degree is maintained, a vacuum test gauge can be inserted into the vacuum assembly 30, and the vacuum test gauge is used to test the vacuum degree. The first connecting port K1 is connected to the vacuum assembly 30, and the vacuum assembly 30 includes a first pipe G1 connected to the first connecting port K1 and a vacuum pump 31 connected to the first pipe G1. The connection side of the first pipe G1 and the flexible part 20 is sealed with a sealing strip. During the vacuuming process, the vacuum pump 31 is turned on, and the vacuum value is drawn to a certain range. The vacuum test gauge tests the vacuum pressure drop within a certain period of time, and the value increase of the vacuum test gauge within 15 minutes is required to be less than 2kPa. In S40, when the adhesive is poured into the molding cavity Q, a vacuum test gauge is used to monitor the vacuum pressure. Alternatively, a digital vacuum gauge can be used to maintain pressure. The vacuum pressure is ≤-98kpa and starts to maintain pressure after it stabilizes. The pressure maintenance requirement is still that the value increase within 15 minutes is less than 2kPa.

[0105] In step S40, when pouring adhesive into the molding cavity Q, the adhesive injection ports are opened in sequence, and the adhesive injection is stopped after the molding material M is completely soaked by the adhesive, and the residual adhesive in the adhesive feed pipe is processed.

[0106] In S50, the molding material M is heated and maintained at a preset temperature. The molding material M and the adhesive are cured to form a blade blank. The web and skin of the wind turbine blade can also be molded, bonded, and cured. During the curing process, the skin is kept warm for a specified period of time after reaching a specified temperature. Curing is completed after the blade root area and the bonding edges are fully cured. The blade blank can be a skin blank or a web blank, or it can be a blank structure where the skin and web are integrally formed.

[0107] In S60, cooling the blade blank, after the blade blank is formed, the blade tip is slightly lifted, and the first and second connecting ports K1, K2 are connected to the first cooling assembly 40. The first cooling assembly 40 circulates air into the interior of the forming cavity Q. The first cooling assembly 40 includes an air source, which may be an inert gas source or a dry gas source. The first connecting port K1 is connected to the air source, and air flows through the bottom of the blade blank to exchange heat and reduce the blank temperature.

[0108] In some embodiments, the base 10 and the molding material M are provided, and the molding material M is divided into multiple sub-regions arranged side by side. The first cooling assembly 40 forms a first cooling region on the side of the blade blank facing away from the molding cavity Q. The first cooling region includes multiple first cooling sub-regions arranged side by side. The base 10 is provided with a second connecting port K2 in each first cooling sub-region. The first cooling sub-regions in the first cooling region are arranged in a one-to-one correspondence with the sub-regions in the molding material M.

[0109] After dividing the molding material M into multiple, side-by-side sub-regions, a statistical analysis is performed on key structural areas of the molding material M that require hoisting or support, including their area, material, and location. Next, the molding material M is divided into multiple, side-by-side sub-regions, from the blade root to the blade tip, with the blade length as the X-axis and the leading edge to the trailing edge as the Y-axis. The center of each sub-region is selected and a marker is set as the temperature measurement location. In each sub-region, a drill is used to drill a detection hole K4 that matches the size of the detection probe 61. The location of the detection hole K4 is selected based on the center of the sub-region, and the depth of the detection hole K4 is 30% to 70% of the material thickness at the corresponding location. The temperature probe is then placed into the corresponding detection hole K4, powered on, the detection mode is adjusted, and the detection probe 61 is communicatively connected to the display structure 62 to confirm that the detection probe 61 and the display structure 62 are functioning properly. The detection probe 61 can be installed during the placement of the molding material M, using a pre-set circuit, or it can be configured as a wireless probe.

[0110] The first cooling area formed by the first cooling component 40 includes multiple first cooling sub-areas, and the first cooling sub-areas are arranged in a one-to-one correspondence with the sub-areas on the molding material M. The base 10 is provided with a second connecting port K2 on each first cooling sub-area, and each second connecting port K2 corresponds to a sub-area on the molding material M to improve the cooling efficiency of the molding material M.

[0111] In some embodiments, when evacuating the interior of the molding cavity Q and maintaining a preset vacuum degree, a second cooling component 50 is set on the side of the flexible part 20 facing away from the molding cavity Q, and the second cooling component 50 is set in contact with the flexible part 20, and the molding material M is cooled by the second cooling component 50.

[0112] The second cooling assembly 50 can be configured as a water-cooling system and include multiple circulating ice water blankets. Because the second cooling assembly 50 is located on the side of the flexible member 20 facing away from the molding cavity Q, it cools the molding material M through the flexible member 20. This allows the second cooling assembly 50 to cool the molding material M during various steps of wind turbine blade production.

[0113] For example, after laying the flexible member 20 at S20 and before evacuating the interior of the molding cavity Q and maintaining a preset vacuum at S30, the molding material M may be preheated to improve the performance of the molding material M. During the preheating process of the molding material M, the heating temperature is controlled between 35°C and 55°C. The second cooling assembly 50 is disposed on the side of the flexible member 20 facing away from the molding cavity Q, and the temperature of the molding material M is adjusted by the second cooling assembly 50. The heating process is monitored by the detection and display structure 62. When an over-temperature area (an area where the temperature exceeds the set temperature by more than 5°C) is found, the second cooling assembly 50 is used to cool the area.

[0114] Optionally, during S30, while evacuating the molding cavity Q and maintaining a predetermined vacuum level, the second cooling assembly 50 can also be used to cool the molding material M. In practice, the temperature of the molding material M needs to be controlled to below 45°C before the adhesive is injected. This cooling process can be performed simultaneously with the vacuuming process, with the second cooling assembly 50 used to cool the molding material M to control its temperature.

[0115] Optionally, the second cooling assembly 50 forms a second cooling area on a side of the flexible member 20 facing away from the molding cavity Q. The second cooling area includes a plurality of second cooling sub-areas distributed side by side. The second cooling sub-areas in the second cooling area are arranged in a one-to-one correspondence with the sub-areas in the molding material M. Each second cooling sub-area corresponds to a sub-area on the molding material M, thereby improving the cooling efficiency of the molding material M.

[0116] Optionally, when providing a molding mold and molding material M, the molding material M is divided into multiple sub-areas distributed side by side, and a detection probe 61 is set in each sub-area. The detection probe 61 is connected to the display structure 62, and the display structure 62 displays the temperature and humidity detected by the detection probe 61 in real time, so that technicians can monitor the temperature and humidity in different sub-areas, so as to facilitate subsequent adjustment of the cooling temperature of the first cooling sub-area and the second cooling sub-area.

[0117] In a third aspect, embodiments of the present application provide a wind turbine blade, which is produced by the wind turbine blade forming device provided in the first aspect of the embodiments of the present application, and / or produced by the wind turbine blade forming method provided in the second aspect of the embodiments of the present application.

[0118] While the present invention has been described with reference to preferred embodiments, various modifications may be made and equivalent components may be substituted without departing from the scope of the present invention. In particular, the various technical features described in the various embodiments may be combined in any manner, provided no structural conflicts exist. The present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. A wind turbine blade forming device, characterized in that: include: A base including a molding surface in contact with a molding material for molding a wind turbine blade; a flexible member, wherein an edge of the flexible member is sealed with the base, and the flexible member and the molding surface enclose a molding cavity, and the molding cavity is used to accommodate the molding material; A vacuum pump assembly, comprising a vacuum pump and a first pipe connected to the vacuum pump; A first cooling assembly includes a second pipeline and a circulation pump connected to the second pipeline; In which, the flexible part is provided with a first communicating port connected to the forming cavity, and the base is provided with a second communicating port connected to the forming cavity. The first communicating port is selectively connected to the first pipe and the second pipe. When the first communicating port is connected to the first pipe, the second communicating port is closed; when the first communicating port is connected to one end of the second pipe, the other end of the second pipe is connected to the second communicating port.

2. The wind turbine blade forming device according to claim 1, characterized in that: The first cooling assembly further includes a first cooling member, the second pipeline includes a first portion and a second portion that are interconnected, the first cooling member is connected between the first portion and the second portion, and the circulating pump is connected to the second portion or the first portion; The first part is connected between the first cooling element and the first communicating port, and a first control element is provided on the first part, and the first control element is used to control the on and off of the first part; The second part is connected between the first cooling member and the second communicating port. A second control member is provided on the second part. The second control member is used to control the on and off of the second part.

3. The wind turbine blade forming device according to claim 2, characterized in that: There are multiple second communication ports, and the multiple second communication ports are spaced apart on the base; The second pipe includes a plurality of second parts, which are arranged in a one-to-one correspondence with the second connecting ports. Each second part is connected to the first cooling member, and an end of each second part away from the first cooling member is connected to the second connecting port.

4. The wind turbine blade forming device according to claim 1, characterized in that: The flexible member includes a first flexible portion and a second flexible portion connected to each other, the first flexible portion is located on a side of the molding material away from the molding surface, the second flexible portion is located on a peripheral side of the molding material, and the second flexible portion is connected to the base; The wind turbine blade forming device further includes a second cooling component, which is arranged on a side of the first flexible portion facing away from the forming cavity, and the second cooling component is arranged in contact with the first flexible portion.

5. The wind turbine blade forming device according to claim 4, characterized in that: The second cooling assembly includes a plurality of second cooling elements distributed at intervals, and the plurality of second cooling elements are independently controlled; The second cooling members are all arranged on the first flexible portion.

6. The wind turbine blade forming device according to claim 4, characterized in that: The first flexible portion is provided with a plurality of through holes distributed at intervals, and the second cooling member is provided between adjacent through holes; The wind turbine blade forming device also includes a temperature and humidity detection component, which includes a plurality of detection probes, at least a portion of each detection probe is located inside the forming cavity, a portion of the detection probe is passed through the through hole, and a portion of the detection probe is arranged in the gap space between adjacent second cooling members.

7. A method for forming a wind turbine blade, characterized in that: include: Providing a base and a molding material, and placing the molding material on the molding surface of the base; Laying a flexible member, the flexible member covering the molding material, the edge of the flexible member contacting and sealingly connecting with the base to form a molding cavity, the flexible member being provided with a first communication port communicating with the molding cavity, and the base being provided with a second communication port communicating with the molding cavity; The interior of the molding cavity is vacuumed and maintained at a preset vacuum degree, the first connecting port is connected to a vacuuming component, the second connecting port is closed, and the vacuuming component vacuums the molding cavity; pouring adhesive into the molding cavity; Heating the molding material and maintaining a preset temperature, and curing the molding material and the adhesive to obtain a blade blank; To cool the blade blank, both the first connecting port and the second connecting port are connected to a first cooling component, and the first cooling component circulates air into the interior of the forming cavity.

8. The wind turbine blade forming method according to claim 7, characterized in that: In the step of providing the base and the molding material, the molding material is divided into a plurality of sub-regions arranged side by side; The first cooling component forms a first cooling area on the side of the blade blank facing away from the forming cavity. The first cooling area includes a plurality of first cooling sub-areas distributed side by side. The base is provided with a second connecting port in each of the first cooling sub-areas. The first cooling sub-areas in the first cooling area are arranged in one-to-one correspondence with the sub-areas in the forming material.

9. The wind turbine blade forming method according to claim 7, characterized in that: The step of evacuating the interior of the molding cavity and maintaining a preset vacuum degree further includes providing a second cooling component on a side of the flexible member facing away from the molding cavity, wherein the second cooling component is provided in contact with the flexible member; Cooling the blade blank includes cooling the molding material by using the second cooling component.

10. The wind turbine blade forming method according to claim 9, characterized in that: In the provision of the base and the molding material, the molding material is divided into a plurality of sub-areas distributed side by side; the second cooling component forms a second cooling area on the side of the flexible part away from the molding cavity, and the second cooling area includes a plurality of second cooling sub-areas distributed side by side, and the second cooling sub-areas in the second cooling area are arranged in a one-to-one correspondence with the sub-areas in the molding material.

11. The method for forming a wind turbine blade according to any one of claims 8 to 10, characterized in that: A detection probe for detecting temperature and humidity is provided in each of the sub-areas.

12. A wind turbine blade, characterized in that: The wind turbine blade is produced by the wind turbine blade forming device according to any one of claims 1 to 6; and / or, the wind turbine blade is produced by the wind turbine blade forming method according to any one of claims 7 to 11.

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