Installation method of blade deicing device, blade and wind generating set

Abstract

The invention relates to an installation method of a blade deicing device, a blade and a wind generating set, and the installation method comprises the steps that a shell is provided, the shell is provided with an inner cavity, and the shell comprises an inner surface arranged towards the inner cavity and an outer surface arranged away from the inner cavity; providing a heating preform, an adhesive portion disposed on at least one of the outer surface and the heating preform, the heating preform configured to provide heat to the housing; bonding the heating prefabricated member on the outer surface through the bonding part; and the heating prefabricated part is fixed to the shell through the binding part, so that the heating prefabricated part is attached to the outer surface of the shell through the bonding part. The embodiment of the invention provides an installation method of a blade deicing device, a blade and a wind generating set. The installation process steps of the blade deicing device can be simplified, the process difficulty is reduced, and the installation efficiency of the blade deicing device is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power generation, and particularly to an installation method of a blade de-icing device, a blade and a wind turbine generator set. Background Art

[0002] In regions with freezing rain and extreme low temperatures, after the surface of the blades of a wind turbine freezes, the aerodynamic profile is changed, the aerodynamic efficiency is reduced, and thus power generation loss is caused. Therefore, it is often necessary to heat the blades to achieve the purpose of de-icing.

[0003] A heating material is placed on the blade, and by supplying power to the heating material, the goal of de-icing is achieved. This route has been proven to be one of the effective solutions for blade de-icing.

[0004] The existing blade electric heating de-icing solutions mainly include two types: The first solution is to place a heating material during the blade production and manufacturing process, and integrate the heating device into the blade housing through the infusion molding process. However, the pre-embedded molding must be made in the mold during the blade production and manufacturing. A large number of wind power plants have been built in China, and the early blades did not have heating de-icing devices during the production and manufacturing process, so a large number of in-service blades cannot be effectively de-iced. The second solution is to retrofit the blades of the existing units, remove the blades from the units, and fix the blade heating materials on the blade surface through vacuum infusion or hand lay-up molding. However, the wind turbines are large-scale equipment. The tower height of most domestic wind turbine generator sets is between 80 and 120 meters, and the tower height of large units can even reach more than 150 meters, and the blade length is 40 - 90 meters. Removing the blades from the wind turbine generator set is extremely costly. And once the heating part of the blades produced by these two solutions is damaged by lightning strikes, it is very difficult to repair. Summary of the Invention

[0005] Embodiments of the present invention provide an installation method of a blade de-icing device, a blade and a wind turbine generator set, which can simplify the installation process steps of the blade de-icing device, reduce the process difficulty, and improve the installation efficiency of the blade de-icing device.

[0006] In a first aspect, according to an embodiment of the present invention, an installation method of a blade de-icing device is provided, including:

[0007] Providing a housing, the housing having an inner cavity, the housing including an inner surface facing the inner cavity and an outer surface facing away from the inner cavity;

[0008] Providing a heating prefabricated part, and providing an adhesive part on at least one of the outer surface and the heating prefabricated part, the heating prefabricated part being configured to provide heat to the housing;

[0009] Bonding the heating prefabricated part to the outer surface through the adhesive part;

[0010] Fix the heating prefabricated part on the housing by means of the binding part, so that the heating prefabricated part fits on the outer surface of the housing through the bonding part.

[0011] According to one aspect of the embodiments of the present invention, before the step of fixing the heating prefabricated part on the housing by means of the binding part, so that the heating prefabricated part fits on the outer surface of the housing through the bonding part, the installation method further includes:

[0012] Provide a crimping part on the side of the heating prefabricated part facing away from the bonding part.

[0013] According to one aspect of the embodiments of the present invention, the step of fixing the heating prefabricated part on the housing by means of the binding part, so that the heating prefabricated part fits on the outer surface of the housing through the bonding part, includes:

[0014] Cover at least part of the crimping part with the binding part;

[0015] Fix the crimping part on the heating prefabricated part by means of the binding part, so that the crimping part crimps the heating prefabricated part onto the bonding part.

[0016] According to one aspect of the embodiments of the present invention, the step of providing a crimping part on the side of the heating prefabricated part facing away from the bonding part includes:

[0017] Provide a crimping part, the crimping part includes a curved panel and a plurality of crimping teeth arranged on the curved panel, the shape of the curved panel matches the shape of the surface of the heating prefabricated part facing away from the bonding part, the plurality of crimping teeth extend along the length direction of the curved panel, and at least part of the adjacent two crimping teeth are spaced apart in the curved surface extension direction of the curved panel;

[0018] Cover at least part of the heating prefabricated part with the curved panel of the crimping part and bond and connect it with the heating prefabricated part.

[0019] According to one aspect of the embodiments of the present invention, the step of providing a crimping part on the side of the heating prefabricated part facing away from the bonding part includes:

[0020] Provide a crimping part, the crimping part includes a plurality of support bars;

[0021] Bond each support bar to the heating prefabricated part along the length direction of the housing respectively, and the adjacent support bars are arranged at intervals in the curved surface extension direction of the housing.

[0022] According to one aspect of the embodiments of the present invention, the support bar includes a frustum structure, and the cross-section of the support bar in the thickness direction of the housing is trapezoidal.

[0023] According to one aspect of the embodiments of the present invention, in the direction from the leading edge to the trailing edge of the housing, the distance from the end of each of the plurality of support bars facing away from the housing to the housing shows a decreasing trend. The step of fixing the crimping part on the heating prefabricated part by means of the binding part includes:

[0024] The binding part is successively brought into contact with each support bar in the direction from the leading edge to the trailing edge and crimped onto the heated preform.

[0025] According to one aspect of an embodiment of the present invention, the step of fixing the heated preform to the housing by using the binding part includes:

[0026] The binding part is wound around the housing in the chordal direction of the housing for one circle, and the binding part covers at least part of the heated preform.

[0027] The binding part is tightened, and the heated preform is attached to the housing through the bonding part.

[0028] According to one aspect of an embodiment of the present invention, the step of winding the binding part around the housing in the chordal direction of the housing for one circle includes:

[0029] Provide a binding part, and the binding part includes a plurality of binding strips.

[0030] The plurality of binding strips are successively wound around the housing in the chordal direction for one circle, and adjacent binding strips are spaced from each other in the length direction of the housing.

[0031] According to one aspect of an embodiment of the present invention, the distance between adjacent binding strips in the length direction is 30 cm.

[0032] According to one aspect of an embodiment of the present invention, the step of tightening the binding part and the heated preform being attached to the housing through the bonding part includes: Each binding strip uses its respective tightening device to contract towards the housing to tightly bind the heated preform and the housing together.

[0033] According to one aspect of an embodiment of the present invention, after the step of fixing the heated preform to the housing by using the binding part so that the heated preform is attached to the bonding part, the manufacturing method further includes: heating and curing the bonding part.

[0034] According to one aspect of an embodiment of the present invention, the step of heating and curing the bonding part includes:

[0035] An electric blanket is provided on the outer surface of the housing, and the electric blanket covers the bonding part on the outer surface.

[0036] The electric blanket is powered on so that the temperature of the electric blanket is above the first threshold and continuously heats the bonding part within the first preset time period.

[0037] According to one aspect of an embodiment of the present invention, the first threshold includes 70 °C, and the first preset time period includes 5 hours.

[0038] According to one aspect of an embodiment of the present invention, before the step of providing the heated preform and providing the bonding part on at least one of the outer surface and the heated preform, the installation method further includes: grinding the outer surface.

[0039] According to one aspect of the embodiments of the present invention, the steps of providing a bonding portion on at least one of the outer surface and the heating preform include:

[0040] Coat the bonding portion on the outer surface;

[0041] Grind the bonding portion to make the surface of the bonding portion facing away from the housing form a flat surface, and the bonding portion reaches a first preset thickness;

[0042] Or, coat the bonding portion on the outer surface of the heating preform;

[0043] Grind the bonding portion to make the surface of the bonding portion close to the housing form a flat surface, and the bonding portion reaches a first preset thickness;

[0044] Or, provide a first bonding portion on the outer surface of the heating preform and a second bonding portion on the outer surface of the housing;

[0045] Grind the surface of the first bonding portion facing away from the heating preform and grind the outer surface of the second bonding portion facing away from the housing, so that the surfaces of the first bonding portion and the second bonding portion in contact with each other form a flat surface. The first bonding portion and the second bonding portion constitute the bonding portion, and the bonding portion reaches a first preset thickness.

[0046] According to one aspect of the embodiments of the present invention, the first preset thickness range includes 2 - 5 mm.

[0047] According to one aspect of the embodiments of the present invention, it further includes separating the binding portion from the housing and bonding the heating preform to the outer surface of the housing.

[0048] According to one aspect of the embodiments of the present invention, a connecting portion is provided between the edge of the heating preform and the housing to enable seamless bonding of the heating preform and the housing.

[0049] In a second aspect, according to an embodiment of the present invention, a blade is provided, and an ice removal device obtained by the installation method as described above is provided on the blade.

[0050] In a third aspect, according to an embodiment of the present invention, a wind turbine generator is provided, including the blade as described above.

[0051] An installation method of a blade de-icing device, a blade and a wind turbine generator set are provided in an embodiment of the present invention. By using an adhesive part to bond a heating preform to the outer surface of a blade housing and using a binding part to fix the heating preform, the heating preform is thus fitted to the outer surface of the housing, achieving heating of the blade housing by means of electric heating, thereby achieving the purpose of de-icing the surface of the housing. The installation method has simple steps, a simplified process flow and reduced difficulty, which is beneficial to the shaping of the blade, convenient for the operation of workers, and more efficiently realizes the de-icing performance of the blade itself. At the same time, the tools used in the method are simple, reducing the process preparation cost and having better economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] The features, advantages and technical effects of exemplary embodiments of the present invention will be described below with reference to the drawings.

[0053] Figure 1 is a flowchart of a method for preparing a blade according to an embodiment of the present invention;

[0054] Figure 2 is a flowchart of another method for preparing a blade according to an embodiment of the present invention;

[0055] Figure 3 is a schematic structural diagram during the preparation process of a blade according to an embodiment of the present invention;

[0056] Figure 4 is a schematic structural diagram during the preparation process of a blade according to an embodiment of the present invention;

[0057] Figure 5 is a schematic structural diagram during the preparation process of a blade according to an embodiment of the present invention;

[0058] Figure 6 is a schematic structural diagram during the preparation process of a blade according to an embodiment of the present invention;

[0059] Figure 7 is Figure 6 a schematic side view structure of;

[0060] Figure 8 is a schematic structural diagram during the preparation process of a blade according to an embodiment of the present invention;

[0061] Figure 9 is a schematic structural diagram during the preparation process of a blade according to an embodiment of the present invention.

[0062] REFERENCE SIGNS:

[0063] 10 - housing; 11 - leading edge; 12 - trailing edge; X - length direction;

[0064] 20 - bonding part; 30 - heating preform; 40 - tying part; 41 - tying strip; 50 - crimping part; 51 - support strip; 60 - connecting part.

[0065] In the drawings, like parts are designated by like reference numerals. The drawings are not drawn to actual scale. Detailed implementation manners

[0066] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is only intended to provide a better understanding of the present invention by showing examples of the present invention. In the drawings and the following description, at least some of the well-known structures and techniques are not shown in order to avoid unnecessarily obscuring the present invention; and, for clarity, the dimensions of some structures may be exaggerated. In addition, the features, structures, or characteristics described below may be combined in any suitable manner in one or more embodiments.

[0067] The directional terms appearing in the following description are all the directions shown in the drawings, and do not limit the installation method of the blade de-icing device, the blade, and the wind turbine generator set of the present invention. In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, the terms "install" and "connect" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be directly connected or indirectly connected. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0068] For a better understanding of the present invention, the following is combined with Figures 1 to 9 The installation method of the blade de-icing device, the blade, and the wind turbine generator set of the embodiments of the present invention are described in detail.

[0069] Please refer to Figure 1 , an installation method of a blade de-icing device according to an embodiment of the present invention is provided, including:

[0070] S1. Provide a housing 10, the housing 10 has an inner cavity, and the housing 10 includes an inner surface facing the inner cavity and an outer surface facing away from the inner cavity;

[0071] S2. Provide a heating preform 30, and provide a bonding part 20 on at least one of the outer surface and the heating preform 30, and the heating preform 30 is configured to provide heat to the housing 10;

[0072] S3. Bond the heating preform 30 to the outer surface through the bonding part 20;

[0073] S4. Fix the heating preform 30 on the housing 10 by means of the binding part 40, so that the heating preform 30 is attached to the outer surface of the housing 10 through the bonding part 20.

[0074] In step S1, the provided housing 10 is usually pre-formed by a process of pouring resin using a mold. After upper and lower mold clamping, the initial housing 10 is obtained.

[0075] Optionally, the housing 10 itself has an inner cavity. Structures such as webs are usually arranged in the inner cavity to support the housing 10. After mold clamping, the housing 10 has opposite inner and outer surfaces. This application is about an installation method for bonding the heating preform 30 to the outer surface, so as to utilize the heating performance of the heating preform 30 to provide heat to the housing 10, and finally achieve the purpose of de-icing the surface of the housing 10.

[0076] Optionally, the bonded heating preform 30 in this embodiment belongs to a prefabricated structure, that is to say, the heating preform 30 and the housing 10 are two independent components. After being formed separately, the heating preform 30 is bonded to the outer surface of the housing 10 to form an integral blade structure.

[0077] In step S2, a bonding part 20 can be arranged between the provided housing 10 and the heating preform 30. Specifically, the bonding part 20 can be arranged on the outer surface of the housing 10, or on the surface of the provided heating preform 30, or the bonding part 20 can be arranged on both the housing 10 and the heating preform 30 respectively. The purpose is to bond the heating preform 30 and the housing 10 by means of the bonding part 20. Please refer to Figure 3 , in this embodiment, the bonding part 20 is arranged on the provided housing 10. Optionally, the bonding part 20 can be made of structural adhesive and other materials, and the bonding part 20 is coated on the outer surface of the housing 10, specifically at the position where the heating preform 30 is to be bonded.

[0078] Subsequently, in step S3, the heating preform 30 is bonded to the outer surface through the bonding part 20, so that a preliminary connection is formed between the heating preform 30 and the housing 10. Please refer to Figure 4 .

[0079] Optionally, according to different actual requirements, a plurality of heating preforms 30 can be bonded on the outer surface, so as to cover a larger area of the outer surface and achieve large-area heating de-icing. The specific quantity and area need to be determined according to the actual de-icing requirements.

[0080] In order to further bond and fix the heating preform 30 to the housing 10 to form a stable connection with the housing 10, in step S4, the initially bonded heating preform 30 can be fixed to the housing 10 by the binding portion 40, so that the heating preform 30 and the housing 10 form a tighter connection, and the bonding between the two is more sufficient. Please refer to Figure 6 and Figure 7 , optionally, the binding portion 40 can adopt a strip structure or a bar structure, as long as it can bundle the heating preform 30 on the housing 10.

[0081] Optionally, after it is determined that the heating preform 30 and the housing 10 are sufficiently bonded, the binding portion 40 can finally be removed to separate it from the housing 10, obtaining the final blade structure.

[0082] The embodiment of the present invention provides an installation method for a blade de-icing device. By using the bonding portion 20 to bond the heating preform 30 to the outer surface of the blade housing 10 and using the binding portion 40 to fix the heating preform 30, the heating preform 30 is attached to the outer surface of the housing 10, realizing heating the blade housing 10 by means of electric heating, thereby achieving the purpose of de-icing the surface of the housing 10. The installation method has simple steps, simplified process flow and reduced difficulty, which is beneficial to the forming of the blade, convenient for the operation of the staff, and more efficiently realizes the de-icing performance of the blade itself. At the same time, the tools used in the method are simple, reducing the process preparation cost and having better economic benefits. The installation method can be constructed on a wind turbine generator without disassembling the blade, and after the heating de-icing device laid by this installation method is damaged by lightning strike, the heating preform 30 can be repaired and replaced.

[0083] As an alternative embodiment, please refer to Figure 2 and combine with Figure 5 , before the step of using the binding portion 40 to fix the heating preform 30 on the housing 10 so that the heating preform 30 adheres to the outer surface of the housing 10 through the bonding portion 20, the installation method further includes:

[0084] S4'. A crimping portion 50 is provided on the side of the heating preform 30 facing away from the bonding portion 20.

[0085] Optionally, the crimping portion 50 can be in a variety of different structural forms, and its main function is to form a certain crimp on the heating preform 30, so that the heating preform 30 can be further bonded to the housing 10 through the bonding portion 20.

[0086] Therefore, after the heating preform 30 is bonded to the housing 10 through the bonding portion 20, the crimping portion 50 can also be bonded to the heating preform 30 by bonding, preparing for the next crimping of the heating preform 30.

[0087] An embodiment of the present invention provides a method for installing a blade. By providing a crimping portion 50 on the heating preform 30, further crimping is performed on the heating preform 30 by utilizing the crimping performance of the crimping portion 50, so that it can be more fully bonded to the outer surface of the housing 10.

[0088] As an alternative embodiment, please refer to Figure 2 and combine with Figures 5 to 7 , the steps of fixing the heating preform 30 on the housing 10 by using the lashing portion 40 so that the heating preform 30 fits on the outer surface of the housing 10 through the bonding portion 20 include:

[0089] S41. Cover at least part of the crimping portion 50 with the lashing portion 40;

[0090] S42. Fix the crimping portion 50 on the heating preform 30 by using the lashing portion 40, so that the crimping portion 50 crimps the heating preform 30 onto the bonding portion 20.

[0091] In steps S41 and S42, after the crimping portion 50 is provided on the heating preform 30, at least part of the crimping portion 50 is bundled by using the lashing portion 40. Thus, the tightening force formed on the lashing portion 40 is transmitted to the heating preform 30 through the crimping portion 50, and the crimping portion 50 indirectly forms a crimping force on the heating preform 30, squeezing it onto the bonding portion 20 to form a bond with the housing 10.

[0092] An embodiment of the present invention provides a method for installing a blade. By using the lashing portion 40 to fix the crimping portion 50 on the heating preform 30, an extrusion force is indirectly provided for the heating preform 30 through the crimping portion 50, so that the heating preform 30 is more fully bonded to the housing 10 to form a more stable bond.

[0093] As an alternative embodiment, the steps of providing the crimping portion 50 on the side of the heating preform 30 facing away from the bonding portion 20 include:

[0094] Provide the crimping portion 50, the crimping portion 50 includes a curved panel and a plurality of crimping teeth provided on the curved panel. The shape of the curved panel matches the shape of the surface of the heating preform 30 facing away from the bonding portion 20. The plurality of crimping teeth extend along the length direction X of the curved panel, and at least part of adjacent two crimping teeth are spaced apart in the curved extension direction of the curved panel;

[0095] Cover the curved panel of the crimping portion 50 on the heating preform 30 and bond it to the heating preform 30.

[0096] In this embodiment, a structural form of a crimping portion 50 is provided, in which the crimping portion 50 is arranged as a curved plate-like structure, and the extension direction of the curved plate structure matches the curved surface of the shell 10 where the heating preform 30 is located, so that the curved plate structure of the crimping portion 50 can be bonded to the shell 10 where the heating preform 30 is located.

[0097] A plurality of pressing teeth are arranged on the curved plate of the crimping portion 50 , and the pressing teeth present a strip structure on the curved plate. Each pressing tooth is arranged at intervals and extends along the length direction X, so that the shell 10 can be covered in the length direction X, while having a larger contact area with the initially bonded heated preform 30 .

[0098] When the binding portion 40 is used to bind the crimping portion 50 , the binding portion 40 will come into contact with a plurality of pressing teeth on the curved plate, so that the tightening force is transmitted by the pressing teeth to bond the heating preform 30 to the shell 10 .

[0099] An embodiment of the present invention provides a method for installing a blade and a structural form of a crimping portion 50 , which forms a better bond with the heating preform 30 through a curved plate and crimps the heating preform 30 through crimping teeth, so that the heating preform 30 can be more tightly bonded to the shell 10 .

[0100] As an alternative embodiment, see Figures 5 to 7 The step of providing a crimping portion 50 on a side of the heated preform 30 away from the bonding portion 20 comprises:

[0101] Providing a crimping portion 50, the crimping portion 50 includes a plurality of support bars 51;

[0102] Each support bar 51 is bonded to the heating preform 30 along the length direction X of the shell 10 , and adjacent support bars 51 are arranged at intervals in the extension direction of the curved surface of the shell 10 .

[0103] Optionally, the crimping portion 50 can be set to a structural form of multiple support strips 51. When the support strips 51 are bonded to the heated preform 30, each support strip 51 is bonded along the length direction X of the shell 10. Adjacent support strips 51 are spaced apart from each other in the extension direction of the curved surface of the shell 10. The support strips 51 can adopt a wooden structure.

[0104] Optionally, the number and distribution of the support bars 51 may be determined according to the actual coverage area of ​​the heated preform 30 , and the present application does not impose any special limitation on the number of the support bars 51 .

[0105] When using the binding part 40 to bundle the support bars 51, the binding part 40 is in direct contact with the side of the support bars 51 facing away from the heating preform 30. After gradually tightening, the binding part 40 provides a tightening force to the multiple support bars 51, and by means of the support bars 51, an extrusion force is formed on the heating preform 30, enabling it to be tightly bonded to the bonding part 20.

[0106] An embodiment of the present invention provides a method for installing a blade, providing another structural form of the crimping part 50. By utilizing the structure of multiple support bars 51, it can better contact the binding part 40 evenly, making the extrusion force on the heating preform 30 more uniform and having a better crimping effect.

[0107] As an optional embodiment, the support bar 51 includes a frustum structure, and the cross-section of the support bar 51 in the thickness direction of the housing 10 is trapezoidal.

[0108] Considering that when using the binding part 40 to bundle the support bars 51, the binding part 40 will be in direct contact with the support bars 51. To protect the binding part 40 and prevent stress concentration at the contact points between the binding part 40 and the support bars 51 from causing the binding part 40 to break, in this embodiment, the cross-section of the support bar 51 is set to trapezoidal, so that the contact position between the binding part 40 and the support bar 51 is a plane, reducing the stress in this part.

[0109] An embodiment of the present invention provides a method for installing a blade. By setting the support bar 51 as a frustum structure, the contact point between the binding part 40 and the support bar 51 is a plane. During the tightening process of the binding part 40, it avoids the breakage of the binding part 40 caused by excessive stress at local contact points, providing better safety protection for the binding part 40.

[0110] As an optional embodiment, please refer to Figure 9 , in the direction from the leading edge 11 to the trailing edge 12 of the housing 10, the distances from the ends of the multiple support bars 51 facing away from the housing 10 to the housing 10 show a decreasing trend. The step of using the binding part 40 to fix the crimping part 50 on the heating preform 30 includes: using the binding part 40 to sequentially contact each support bar 51 in the direction from the leading edge 11 to the trailing edge 12 and crimp it onto the heating preform 30.

[0111] Optionally, usually the heating preform 30 is bonded to the position of the leading edge 11 of the housing 10. Since multiple support bars 51 need to be adhesively provided on the heating preform 30, the support bars 51 at the leading edge 11 protrude from the housing 10. When using the binding part 40 for bundling, the support bar 51 closest to the leading edge 11 will first contact the support bar 51 at that place.

[0112] In this embodiment, the thickness dimensions of multiple support bars 51 are designed differently. That is, in the direction from the leading edge 11 to the trailing edge 12, the thickness of the support bar 51 gradually decreases. As a result, when bundling, the support bar 51 at the leading edge 11 first contacts the binding part 40. The binding part 40 will first squeeze the support bar 51 at the leading edge 11, and then gradually bundle towards the trailing edge 12, successively contacting and bundling with the support bars 51 near the trailing edge 12.

[0113] That is to say, when the binding part 40 is bundling, it first starts to squeeze the heating preform 30 from the leading edge 11, and gradually squeezes the heating preform 30 towards the trailing edge 12. There is a sequence in the pressing process, and finally the heating preform 30 is integrally crimped onto the housing 10.

[0114] The embodiment of the present invention provides a method for installing a blade. By using the differential design of the thickness of multiple support bars 51, during the bundling process, it successively contacts and squeezes the support bars 51 from the leading edge 11 to the trailing edge 12, making the pressing process of the heating preform 30 more uniform and ensuring uniform force at each place.

[0115] As an alternative embodiment, please refer to Figure 6 , the steps of fixing the heating preform 30 on the housing 10 by using the binding part 40 include:

[0116] Wind the binding part 40 around the housing 10 along the chord direction of the housing 10 for one circle, and the binding part 40 covers at least part of the heating preform 30;

[0117] Tighten the binding part 40, and the heating preform 30 fits with the housing 10 through the bonding part 20.

[0118] Optionally, in order to make the binding part 40 fully bundle the heating preform 30, the binding part 40 can be wound around the housing 10 along the chord direction of the housing 10 for one circle, so as to bundle the heating preform 30 on the housing 10.

[0119] After bundling with the binding part 40, the binding part 40 can be tightened, so as to form a squeezing force on the heating preform 30, ensuring that the heating preform 30 is fully adhered to the bonding part 20. After tightening the binding part 40, let the overall structure stand for a period of time, and the bonding between the heating preform 30 and the bonding part 20 will be more firm.

[0120] The embodiment of the present invention provides a method for installing a blade. By winding the binding part 40 around the housing 10 for one circle and tightening the binding part 40, a tighter bonding is formed on the heating preform 30, improving the bonding stability between the heating preform 30 and the housing 10.

[0121] As an alternative embodiment, please refer toFigure 7 The step of winding the binding part 40 around the shell 10 along the circumferential direction of the shell 10 includes:

[0122] Providing the binding part 40, the binding part 40 includes a plurality of binding strips 41;

[0123] Winding the plurality of binding strips 41 around the shell 10 along the circumferential direction in sequence, and adjacent binding strips 41 are spaced from each other in the length direction X of the shell 10.

[0124] Optionally, the binding part 40 may adopt the structural form of a plurality of binding strips 41. When using the binding part 40 for bundling, the binding strips 41 are sequentially wound around the shell 10 along the length direction X of the shell 10, and adjacent binding strips 41 are spaced from each other in the length direction X.

[0125] In this embodiment, the number of the binding strips 41 is determined according to the coverage range of the heating preform 30 on the shell 10. At the same time, the uniformity of the spacing between the binding strips 41 needs to be considered to ensure that the heating preform 30 can be uniformly stressed and bundled everywhere.

[0126] Optionally, generally, the spacing between adjacent binding strips 41 in the length direction X is 30 cm. This is mainly considered in view of the covering length of the heating preform 30 on the shell 10. It is necessary to involve all the binding strips 41 in the whole heating preform 30. At the same time, in order to make the heating preform 30 be stressed and bundled at each section and the stress at each section be uniform, the equal spacing between adjacent binding strips 41 is used to average the stress at each section, so as to form a firm bond between the whole of the heating preform 30 and the shell 10.

[0127] The embodiment of the present invention provides a method for installing a blade. By using a plurality of binding strips 41 to wind around the shell 10 respectively to bundle the heating preform 30, the whole heating preform 30 is fully covered, ensuring that it can be uniformly stressed everywhere and form a tight bond with the shell 10, preventing local detachment caused by unstable bonding, reducing the risk of heating deicing failure, and having better reliability.

[0128] As an alternative embodiment, the step of tightening the binding part 40 and making the heating preform 30 fit with the shell 10 through the bonding part 20 includes: each binding strip 41 uses its own tightening device to contract towards the shell 10 to bundle the heating preform 30 and the shell 10 to fit tightly.

[0129] The embodiment of the present invention provides a method for installing a blade, providing a way to tighten the binding part 40. By using the tightening devices carried on each binding strip 41, each binding strip 41 is made to contract towards the shell 10, thereby providing an extrusion force for the heating preform 30 and having a better tightening effect.

[0130] As an alternative embodiment, after the step of fixing the heating preform 30 to the housing 10 by means of the binding part 40 so that the heating preform 30 is in contact with the bonding part 20, the installation method further includes: heating and curing the bonding part 20.

[0131] After the heating preform 30 is closely attached to the housing 10, the bonding part 20 also needs to be cured, so that the overall structure is made of a rigid material and has better structural stability. Usually, heating and curing can be adopted, which is beneficial to accelerating the curing speed of the bonding part 20.

[0132] The present application does not make any special limitation on the curing method of the bonding part 20. It can also be directly cured by standing still. After the bonding part 20 is cured, at this time, the heating preform 30 has been fixed to the housing 10, and the binding part 40 can be removed to complete the bonding process of the heating preform 30.

[0133] The embodiment of the present invention provides an installation method for a blade. By heating and curing the bonding part 20, a more stable connection is formed between the heating preform 30 and the housing 10, further preventing the heating preform 30 from falling off and having higher structural strength.

[0134] As an alternative embodiment, the step of heating and curing the bonding part 20 includes:

[0135] Providing an electric heating blanket on the outer surface of the housing 10, and the electric heating blanket covers the bonding part 20 on the outer surface;

[0136] Applying power to the electric heating blanket so that the temperature of the electric heating blanket is above a first threshold and continuously heats the bonding part 20 within a first preset time period.

[0137] Optionally, the first threshold includes 70 °C and the first preset time period includes 5 hours. For the first threshold and the first preset time period, this depends on the material of the bonding part 20. Different temperature values and heating times are adopted for bonding parts 20 made of different materials. The present application does not make any special limitation on the specific values of the first threshold and the first preset time period.

[0138] The embodiment of the present invention provides an installation method for a blade, providing a method for heating and curing the bonding part 20. By heating and curing the bonding part 20, a more stable connection is formed between the heating preform 30 and the housing 10, further preventing the heating preform 30 from falling off and having higher structural strength.

[0139] As an alternative embodiment, before the step of providing the heating preform 30 and providing the bonding part 20 on at least one of the outer surface and the heating preform 30, the installation method further includes: polishing the outer surface.

[0140] Before the bonding portion 20 is provided on the outer surface of the housing 10, in order to enable the bonding portion 20 to bond better to the outer surface, the outer surface can be polished to provide a clean and flat surface for the bonding portion 20, so as to form a better bond with the housing 10.

[0141] An embodiment of the present invention provides a method for installing a blade. By polishing the outer surface of the housing 10, the bonding portion 20 forms a more stable bond with the housing 10, improving the bonding ability of the bonding portion 20, and further making the bonding between the heating preform 30 and the housing 10 more reliable.

[0142] As an alternative embodiment, in the step of providing the bonding portion 20 on at least one of the outer surface and the heating preform 30, it includes:

[0143] Coat the bonding portion 20 on the outer surface;

[0144] Grind the bonding portion 20 to make the surface of the bonding portion 20 facing away from the housing 10 form a plane, and the bonding portion reaches the first preset thickness;

[0145] Or, coat the bonding portion 20 on the outer surface of the heating preform 30;

[0146] Grind the bonding portion 20 to make the surface of the bonding portion 20 close to the housing 10 form a plane, and the bonding portion 20 reaches the first preset thickness;

[0147] Or, provide a first bonding portion on the outer surface of the heating preform 30 and a second bonding portion on the outer surface of the housing 10;

[0148] Grind the surface of the first bonding portion facing away from the heating preform 30, and grind the outer surface of the second bonding portion facing away from the housing 10, so that the surfaces of the first bonding portion and the second bonding portion in contact with each other form a plane. The first bonding portion and the second bonding portion constitute the bonding portion 20, and the bonding portion 20 reaches the first preset thickness.

[0149] Optionally, after the bonding portion 20 is provided on the outer surface of the housing 10, a tool can be used to grind the surface of the bonding portion 20 to make it have a more flat surface, which is convenient for bonding the heating preform 30 thereto.

[0150] Optionally, the range of the first preset thickness includes 2 - 5 mm. Controlling the thickness of the bonding portion 20 within this range can not only ensure the bonding with the heating preform 30, but also prevent unnecessary losses caused by excessive bonding portion 20, meeting the basic bonding conditions of the heating preform 30.

[0151] An embodiment of the present invention provides a method for installing a blade. By adjusting the structure of the bonding portion 20, it can better form a bond with the heated preform 30, thereby improving the reliability of the bond with the heated preform 30.

[0152] As an alternative embodiment, please refer to Figure 8 , a connecting portion 60 is provided between the edge of the heated preform 30 and the housing 10 to enable seamless bonding between the heated preform 30 and the housing 10.

[0153] Optionally, the connecting portion 60 can be made of putty. Mainly after the heated preform 30 is bonded to the housing 10, the connecting portion 60 is connected between the heated preform 30 and the housing 10. Its main function is to perform a transitional shaping on the corners of the heated preform 30 to form a better connection between the heated preform 30 and the housing 10.

[0154] An embodiment of the present invention provides a method for installing a blade. By providing a connecting portion 60 at the edge of the heated preform 30, a better connection is formed between it and the housing 10. On the basis of ensuring structural stability, the appearance of the overall structure is improved.

[0155] An embodiment of the present invention provides a method for installing a blade de-icing device, a blade, and a wind turbine generator set. By using the bonding portion to bond the heated preform to the outer surface of the blade housing and using the binding portion to fix the heated preform, the heated preform is thus fitted to the outer surface of the housing, realizing heating of the blade housing by means of electric heating, thereby achieving the purpose of de-icing the housing surface. This installation method has simple steps, a simplified process flow and reduced difficulty, is beneficial to the shaping of the blade, is convenient for the operation of the staff, and more efficiently realizes the de-icing performance of the blade itself. At the same time, the tools used in the method are simple, reducing the process preparation cost and having better economic benefits.

[0156] Although the present invention has been described with reference to the preferred embodiments, various improvements can be made to it and components therein can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various technical features mentioned in each embodiment can be combined in any way. The present invention is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A method for installing a blade de-icing device, characterized in that, Comprising: Providing a housing (10) having an inner cavity, the housing (10) including an inner surface facing the inner cavity and an outer surface facing away from the inner cavity; Providing a heating preform (30), and providing an adhesive portion (20) on at least one of the outer surface and the heating preform (30), the heating preform (30) being configured to provide heat to the housing (10); Bonding the heating preform (30) to the outer surface through the adhesive portion (20); Fixing the heating preform (30) to the housing (10) by means of a lashing portion (40) such that the heating preform (30) is attached to the outer surface of the housing (10) through the adhesive portion (20).

2. The installation method according to claim 1, characterized in that, Before the step of fixing the heating preform (30) to the housing (10) by means of the lashing portion (40) such that the heating preform (30) is attached to the outer surface of the housing (10) through the adhesive portion (20), the installation method further includes: Providing a crimping portion (50) on a side of the heating preform (30) facing away from the adhesive portion (20).

3. The installation method according to claim 2, characterized in that, The step of fixing the heating preform (30) to the housing (10) by means of the lashing portion (40) such that the heating preform (30) is attached to the outer surface of the housing (10) through the adhesive portion (20) includes: Covering at least a part of the crimping portion (50) with the lashing portion (40); Fixing the crimping portion (50) to the heating preform (30) by means of the lashing portion (40) such that the crimping portion (50) presses the heating preform (30) onto the adhesive portion (20).

4. The installation method according to claim 3, characterized in that, The step of providing the crimping portion (50) on a side of the heating preform (30) facing away from the adhesive portion (20) includes: Providing the crimping portion (50), the crimping portion (50) including a curved panel and a plurality of crimping teeth provided on the curved panel, the shape of the curved panel matching the shape of the surface of the heating preform (30) facing away from the adhesive portion (20), the plurality of crimping teeth extending along the length direction (X) of the curved panel, and adjacent two of the crimping teeth being at least partially spaced apart in the curved surface extension direction of the curved panel; Covering at least a part of the heating preform (30) with the curved panel of the crimping portion (50) and adhesively connecting it to the heating preform (30).

5. The installation method according to claim 3, wherein The step of providing the crimping portion (50) on a side of the heating preform (30) facing away from the adhesive portion (20) includes: Providing the crimping portion (50), the crimping portion (50) including a plurality of support bars (51); Bonding each of the support bars (51) to the heating preform (30) along the length direction (X) of the housing (10) respectively, and adjacent support bars (51) being spaced apart in the curved surface extension direction of the housing (10).

6. The installation method according to claim 5, wherein, The support bar (51) includes a frustum structure, and the cross-section of the support bar (51) in the thickness direction of the housing (10) is trapezoidal.

7. The installation method according to claim 5, characterized in that In the direction from the front edge (11) of the shell (10) to the rear edge (12), the distances from one end of each of the plurality of support bars (51) facing away from the shell (10) to the shell (10) are decreasing, and the step of fixing the crimping portion (50) on the heating preform (30) by using the binding portion (40) comprises: The binding portion (40) is used to contact each of the support strips (51) in sequence in the direction from the front edge (11) to the rear edge (12) and is pressed onto the heated preform (30).

8. The installation method according to claim 1, characterized in that, The step of fixing the heating preform (30) on the shell (10) by using the binding part (40) comprises: The binding portion (40) is wound around the shell (10) along the chord direction of the shell (10), and the binding portion (40) covers at least a portion of the heating preform (30); The binding portion (40) is tightened, and the heating preform (30) is bonded to the shell (10) via the bonding portion (20).

9. The installation method according to claim 8, wherein The step of wrapping the binding portion (40) around the shell (10) along the chord direction of the shell (10) for one circle comprises: Providing the binding portion (40), wherein the binding portion (40) comprises a plurality of binding strips (41); The plurality of tying strips (41) are sequentially wound around the shell (10) in one circle along the chord direction, and adjacent tying strips (41) are spaced apart from each other in the length direction (X) of the shell (10).

10. The installation method according to claim 9, characterized in that, The spacing between adjacent binding strips (41) in the length direction (X) is 30 cm.

11. The installation method according to claim 9, characterized in that, The step of tightening the binding portion (40) and making the heating preform (30) fit closely to the shell (10) via the bonding portion (20) comprises: each of the binding strips (41) is contracted toward the shell (10) by using a respective tightener to bind the heating preform (30) and make it fit closely to the shell (10).

12. The installation method according to claim 1, characterized in that, After the step of fixing the heating preform (30) on the shell (10) using the binding portion (40) so that the heating preform (30) is in contact with the adhesive portion (20), the installation method further comprises: heating and curing the adhesive portion (20).

13. The installation method according to claim 12, characterized in that, The step of heating and curing the adhesive portion (20) comprises: An electric blanket is arranged on the outer surface of the housing (10), and the electric blanket covers the adhesive portion (20) on the outer surface; The electric blanket is powered on so that the temperature of the electric blanket is above a first threshold value and the bonding portion (20) is continuously heated within a first preset time period.

14. The installation method according to claim 13, wherein The first threshold value includes 70° C., and the first preset time period includes 5 hours.

15. The installation method according to claim 1, characterized in that, Before the steps of providing a heating preform (30) and arranging an adhesive portion (20) on at least one of the outer surface and the heating preform (30), the installation method further comprises: performing a grinding process on the outer surface.

16. The installation method according to claim 1, characterized in that, The step of providing a heated preform (30), and providing an adhesive portion (20) on at least one of the outer surface and the heated preform (30) comprises: Coat the bonding part (20) on the outer surface; Perform a leveling process on the bonding part (20) so that the surface of the bonding part (20) facing away from the housing (10) forms a flat surface, and the bonding part (20) reaches a first preset thickness; Alternatively, coat the bonding part (20) on the outer surface of the heating preform (30); Perform a leveling process on the bonding part (20) so that the surface of the bonding part (20) close to the housing (10) forms a flat surface, and the bonding part (20) reaches a first preset thickness; Alternatively, a first bonding part is provided on the outer surface of the heating preform (30), and a second bonding part is provided on the outer surface of the housing (10); Perform a leveling process on the surface of the first bonding part facing away from the heating preform (30), and perform a leveling process on the outer surface of the second bonding part facing away from the housing (10), so that the surfaces of the first bonding part and the second bonding part in contact with each other form a flat surface. The first bonding part and the second bonding part constitute the bonding part (20), and the bonding part (20) reaches a first preset thickness.

17. The installation method according to claim 16, wherein The range of the first preset thickness includes 2 - 5 mm.

18. The installation method according to claim 1, wherein, It further includes separating the binding part (40) from the housing (10), and the heating preform (30) is bonded to the outer surface of the housing (10).

19. The installation method according to claim 1, characterized in that, An engagement part (60) is provided between the edge of the heating preform (30) and the housing (10) to enable seamless bonding of the heating preform (30) and the housing (10).

20. A blade, characterized in that, An ice removal device obtained by the installation method according to any one of claims 1 - 19 is provided on the blade.

21. A wind turbine generator, characterized in that, The wind turbine generator set includes a blade as claimed in claim 20.

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