Perfusion device

Abstract

The invention belongs to the technical field of wind power blade manufacturing, and discloses a filling device which comprises a forming mold, an air exhaust system and a filling system. And a wind power blade to be poured is poured and formed in the forming mold. The air exhaust system comprises a plurality of air exhaust pipelines, and the multiple air exhaust pipelines are all arranged on the forming mold in a communicating mode and are configured to exhaust air from one side of the to-be-poured wind power blade. The filling system and the air exhaust system are oppositely arranged on the two sides of the to-be-filled wind power blade, and the filling system comprises a plurality of filling pipelines which are all communicated with the to-be-filled wind power blade and are configured to inject glue from the other side of the to-be-filled wind power blade. By means of the perfusion device, the perfusion process and the air exhaust process can be conducted at the same time, and the perfusion effect and the perfusion efficiency are improved.

Description

Technical Field

[0001] The invention relates to the technical field of wind turbine blade manufacturing, and in particular to a pouring device. Background Art

[0002] As wind turbine blades grow in size, the root diameter and chord length of the blades gradually increase, and the blade molding cycle increases. In the blade infusion process, as blades grow in size and become more complex in structure, the existing infusion system will be equipped with multiple glue injection pipelines and multiple exhaust pipelines. In the existing blade shell vacuum infusion process, the mold platform is generally used for exhaust, and multiple glue injection pipelines are evenly arranged inside the blade shell. By opening the glue injection pipelines one by one, the internal infusion of the blade shell is completed in sequence, and finally the resin is completely infiltrated into the blade shell structure. For large wind turbine blades, the existing infusion process has the problems of long infusion time and low infusion efficiency, and the layout of the glue injection pipeline and the operation requirements for opening the glue injection pipeline are relatively strict. As the structure of wind turbine blades becomes more complex, defects such as whitening or air inclusions are easily formed during the infusion process.

[0003] In order to improve the above defects, the prior art generally chooses to arrange additional exhaust pipelines and injection pipelines and other structures to process the locations prone to the above defects, forming a more complex process system. Although the above method can improve the infusion defects, it increases the complexity of the process system, resulting in problems such as long infusion time, slow resin flow rate, unstable infusion process and redundant pipelines, which leads to increased resin volume, increased costs and overweight of wind turbine blades.

[0004] Therefore, a perfusion device is urgently needed to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a perfusion device, by which the perfusion process and the air extraction process can be carried out simultaneously, thereby improving the perfusion effect and the perfusion efficiency.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] A perfusion device comprising:

[0008] A molding die, in which the wind turbine blades to be cast are cast and molded;

[0009] An air extraction system, the air extraction system comprising a plurality of air extraction pipelines, the plurality of air extraction pipelines are all connected to the forming mold and are configured to extract air from one side of the wind turbine blade to be poured;

[0010] The perfusion system and the air extraction system are arranged on both sides of the perfusion wind turbine blade relative to each other, and include multiple perfusion pipelines, all of which are connected to the perfusion wind turbine blade and are configured to inject glue from the other side of the wind turbine blade to be perfused.

[0011] As a preferred embodiment of the filling device provided by the present invention, the molding die forms a filling port at the connection of the filling pipeline, and the molding die forms a suction port at the connection of the suction pipeline, and the filling port and the suction port are staggered.

[0012] As a preferred solution of the pouring device provided by the present invention, a plurality of the pouring ports are arranged at equal intervals on the molding die.

[0013] As a preferred solution of the injection device provided by the present invention, a plurality of the air suction ports are arranged at equal intervals on the molding die.

[0014] As a preferred solution of the filling device provided by the present invention, a plurality of the air extraction ports are arranged in an array around the filling port.

[0015] As a preferred solution of the filling device provided by the present invention, the distances between each of the filling ports and the plurality of air extraction ports arranged around the filling port are equal.

[0016] As a preferred solution of the filling device provided by the present invention, the plurality of air extraction ports are arranged in a rectangular array on the periphery of one of the filling ports.

[0017] As a preferred embodiment of the perfusion device provided by the present invention, the perfusion device also includes a one-way breathable membrane, and the one-way breathable membrane is respectively arranged at the positions of the multiple exhaust pipelines on the inner side of the molding mold. The one-way breathable membrane can allow air to pass through and can block the flow of the perfusion glue.

[0018] As a preferred solution of the perfusion device provided by the present invention, the perfusion system further comprises a main perfusion pipeline, and the plurality of perfusion pipelines are respectively connected to the main perfusion pipeline.

[0019] As a preferred solution of the perfusion device provided by the present invention, a valve is provided between the perfusion pipeline and the main perfusion pipeline.

[0020] Beneficial effects of the present invention:

[0021] The pouring device provided by the present invention includes a molding mold, an exhaust system and a pouring system. The wind turbine blade to be poured is poured and formed in the molding mold. The exhaust system includes a plurality of exhaust pipelines, and the plurality of exhaust pipelines are connected to the molding mold and are configured to exhaust air from one side of the wind turbine blade to be poured. The pouring system and the exhaust system are arranged on both sides of the pouring wind turbine blade opposite to each other, and include a plurality of pouring pipelines, and the plurality of pouring pipelines are connected to the pouring wind turbine blade and are configured to inject glue from the other side of the wind turbine blade to be poured. In other words, the above-mentioned exhaust system and the pouring system can work relatively independently, and can realize exhaust and injection at the same time, thereby improving the efficiency of the pouring process, and by exhausting air on the surface of the molding mold, the pouring defects such as the surface wrapping of the wind turbine blade product are completely avoided. For areas with complex structures, the corresponding exhaust pipelines can also be directly used to improve the outer surface pouring defects. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0023] Figure 1 It is a side view of a partial structure of a pouring device and a wind turbine blade to be poured provided by an embodiment of the present invention;

[0024] Figure 2 It is a top view of a partial structure of a pouring device and a wind turbine blade to be poured provided by an embodiment of the present invention.

[0025] In the figure:

[0026] 10. Wind turbine blades to be poured; 11. Shell structure; 12. Main beam structure; 13. Trailing edge beam structure;

[0027] 100. Forming mold;

[0028] 200, air extraction system; 210, air extraction pipeline; 220, leading edge platform air extraction pipe;

[0029] 300, perfusion system; 310, perfusion pipeline; 320, perfusion main pipeline; 330, valve;

[0030] 400, One-way breathable membrane. DETAILED DESCRIPTION

[0031] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0035] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or are the positions or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0036] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", and "fix" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0038] In this embodiment, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in the present invention generally indicates that the associated objects before and after are in an "or" relationship.

[0039] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0040] Figure 1 It is a side view of a partial structure of a pouring device and a wind turbine blade to be poured provided by an embodiment of the present invention; Figure 2 1 is a top view of a partial structure of a pouring device and a wind turbine blade to be poured provided by an embodiment of the present invention. Figure 1 and Figure 2 This embodiment provides a pouring device, which includes a molding die 100 , an air extraction system 200 and a pouring system 300 .

[0041] Specifically, the shell structure 11, the main beam structure 12 and the trailing edge beam structure 13 of the wind turbine blade 10 to be poured can be poured and formed in the molding mold 100. The exhaust system 200 includes a plurality of exhaust pipes 210, which are all connected to the molding mold 100 and are configured to exhaust air from one side of the wind turbine blade 10 to be poured. The pouring system 300 is arranged on both sides of the pouring wind turbine blade 10 opposite to the exhaust system 200, and includes a plurality of pouring pipes 310, which are all connected to the pouring wind turbine blade 10 and are configured to inject glue from the other side of the wind turbine blade 10 to be poured. Through the above arrangement, the exhaust system 200 and the pouring system 300 can work relatively independently, and can realize simultaneous exhaust and simultaneous glue injection, thereby improving the efficiency of the pouring process. Furthermore, by exhausting air on the surface of the molding die 100, the filling defects such as surface backfill of the wind turbine blade product are completely avoided. For areas with complex structures, the filling defects on the outer surface can also be improved directly through the corresponding exhaust pipe 210.

[0042] More specifically, the molding die 100 forms a pouring port at the connection of the pouring pipeline 310, and the molding die 100 forms an exhaust port at the connection of the exhaust pipeline 210, and the pouring port and the exhaust port are arranged in a staggered manner. By staggering the pouring port and the exhaust port, it is possible to avoid that when the exhaust port is facing the pouring port for exhaust, the pouring glue flowing from the pouring port to the wind turbine blade 10 to be poured directly seeps downward under the action of exhaust, resulting in poor diffusion effect, thereby affecting the pouring effect of the wind turbine blade product.

[0043] More specifically, the plurality of pouring ports are arranged at equal intervals on the molding die 100. In this embodiment, the plurality of pouring ports are arranged at equal intervals in the span direction of the wind turbine blade 10 to be poured, so as to ensure uniformity of the pouring process.

[0044] More specifically, a plurality of the air extraction ports are evenly spaced and arranged in the molding die 100. In this embodiment, the air extraction ports are evenly spaced in the span direction and the chord direction of the wind turbine blade 10 to be poured, so as to ensure uniform air extraction.

[0045] It should be noted that the exhaust system 200 also includes a leading edge platform exhaust pipe 220 correspondingly arranged at the leading edge platform of the wind turbine blade 10 to be poured. Through the leading edge platform exhaust pipe 220, exhaust can be achieved at the leading edge platform of the wind turbine blade 10 to be poured.

[0046] Preferably, the plurality of air extraction ports are arranged in a rectangular array around one of the injection ports. That is, a injection port is provided at the center between four air extraction ports arranged in a rectangular array, and the injection glue flowing out of one injection port is adsorbed and guided by the four air extraction ports, so as to assist the injection glue to diffuse in multiple directions around.

[0047] Preferably, in this embodiment, a plurality of the air extraction ports are arranged in an array around the injection port. When the air extraction ports arranged in an array around the injection port are used for air extraction, firstly, suction force can be provided for the injection glue flowing out of the injection port to promote the injection glue to diffuse around the injection port, thereby improving the injection efficiency; secondly, the permeability of the injection glue in the wind turbine blade 10 to be injected can be improved.

[0048] As a preferred embodiment, the spacing between each of the injection ports and the plurality of air extraction ports arranged around the injection port is equal. Through the above arrangement, the uniformity of adsorption and guidance of the injection glue at the injection port can be further improved.

[0049] Continue to refer to Figure 1 The injection system 300 further includes an injection main pipeline 320, and the plurality of injection pipelines 310 are respectively connected to the injection main pipeline 320. Through the above arrangement, the plurality of injection pipelines 310 can simultaneously inject glue to various positions of the wind turbine blade 10 to be injected, thereby reducing the injection process time.

[0050] It should be noted that a perfusion pipeline 310 is provided at the rear end of the relatively complex trailing edge beam structure 13, and a perfusion pipeline 310 is also provided at the front end of the trailing edge beam structure 13. Through the above arrangement, it is possible to simultaneously inject glue from the rear end and the front end of the trailing edge beam structure 13, thereby avoiding the perfusion back-up defect caused by unilateral injection of glue on the trailing edge beam structure 13.

[0051] Optionally, in this embodiment, a valve 330 is provided between the perfusion pipeline 310 and the main perfusion pipeline 320. Through the valve 330, selective communication between multiple perfusion pipelines 310 and the main perfusion pipeline 320 can be achieved, so that the operator can select the perfusion position according to the actual situation of the perfusion process.

[0052] Continue to refer to Figure 1 and Figure 2 The pouring device also includes a one-way air-permeable membrane 400, which is respectively arranged at the positions of the multiple exhaust pipes 210 on the inner side of the molding mold 100. The one-way air-permeable membrane 400 can allow air to pass through and can block the flow of the pouring glue, thereby preventing the pouring glue from flowing to the exhaust pipe 210 and causing problems such as blockage of the exhaust pipe 210.

[0053] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A perfusion device, characterized in that include: A molding mold (100), in which the wind turbine blade (10) to be cast is cast and molded; An air extraction system (200), the air extraction system (200) comprising a plurality of air extraction pipelines (210), the plurality of air extraction pipelines (210) being arranged in communication with the forming mold (100) and configured to extract air from one side of the wind turbine blade (10) to be poured; A perfusion system (300), the perfusion system (300) and the air extraction system (200) are arranged on both sides of the wind turbine blade (10) to be perfused, and include a plurality of perfusion pipelines (310), the plurality of perfusion pipelines (310) are all connected to the wind turbine blade (10) to be perfused, and are configured to inject glue from the other side of the wind turbine blade (10) to be perfused.

2. The perfusion device according to claim 1, characterized in that The molding die (100) forms a pouring port at the connection point of the pouring pipeline (310), and the molding die (100) forms a suction port at the connection point of the suction pipeline (210), and the pouring port and the suction port are arranged in a staggered manner.

3. The perfusion device according to claim 2, characterized in that The plurality of injection ports are arranged at equal intervals on the molding die (100).

4. The perfusion device according to claim 2, characterized in that The plurality of air suction ports are arranged at equal intervals on the molding die (100).

5. The perfusion device according to claim 2, characterized in that A plurality of air extraction ports are arranged in an array around the injection port.

6. The perfusion device according to claim 2, characterized in that The distances between each of the filling ports and the plurality of air extraction ports arranged around the filling port are equal.

7. The perfusion device according to claim 2, characterized in that The plurality of air extraction ports are arranged in a rectangular array around one of the injection ports.

8. The perfusion device according to claim 1, characterized in that The pouring device further comprises a one-way air-permeable membrane (400), and the one-way air-permeable membrane (400) is respectively arranged at positions on the inner side of the molding die (100) facing the plurality of exhaust pipes (210). The one-way air-permeable membrane (400) can allow air to pass through and can block the flow of the pouring glue.

9. The perfusion device according to any one of claims 1 to 8, characterized in that: The perfusion system (300) further comprises a main perfusion pipeline (320), and the plurality of perfusion pipelines (310) are respectively connected to the main perfusion pipeline (320).

10. The perfusion device according to claim 9, characterized in that A valve (330) is provided between the perfusion pipeline (310) and the main perfusion pipeline (320).

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