A segmented wind turbine blade laying method and wind turbine blade

Abstract

The present invention discloses a segmented wind turbine blade laying method and a wind turbine blade. The laying method divides the skin cloth laying area and the sleeve material laying area into sections before formal laying, and then lays different areas simultaneously. The wind turbine blade disclosed in the present invention is made by adopting the laying method. The segmented wind turbine blade laying method of the present invention disconnects the skin cloth and adjusts the order of laying the sleeve material, so that the sleeve material, beam and prefabricated parts can be placed and completed at the same time without affecting the design structure, thereby effectively shortening the production cycle. Moreover, the skin cloth, substrate, prefabricated parts and beam can be laid at the root, middle and tip of the blade at the same time, thereby improving the utilization rate of personnel and avoiding the sluggishness of personnel in subsequent processes caused by a large amount of time required for operation in a certain link. The wind turbine blade of the present invention has the advantages of short production cycle and low cost.

Description

Technical Field

[0001] The invention relates to wind turbine blade processing and blades, and in particular to a segmented wind turbine blade laying method and a wind turbine blade. Background Art

[0002] Under current conditions, the skin of the lower shell of the wind turbine blade is a whole from the root end to the blade tip. The cover is placed from one end to the other, and the beam is placed on top of the cover. The cover cannot be placed before the skin cloth is laid, and the beam and prefabricated parts cannot be placed before the cover is placed. Under normal circumstances, it takes 1 hour to install the prefabricated parts, 1 hour to place the beam, and 1 hour to place the cover, which seriously affects the production cycle. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the defects of the prior art that the processing time of wind turbine blades is too long, the processing cost, time cost and labor cost are too high, and to provide a segmented wind turbine blade laying method and a wind turbine blade.

[0004] A segmented wind turbine blade laying method is characterized in that it comprises the following steps, wherein steps 9 to 12 are performed in sequence:

[0005] Step 1: placing a blade mold for laying wind turbine blades, with the surface of the blade mold to be laid facing upward, and the blade mold including a root and a blade tip;

[0006] Step 2: Determine the starting and ending positions of the first section of the skin cloth laying area;

[0007] Step 3: Determine the starting position and the ending position of the prefabricated component installation area, wherein the starting position of the prefabricated component installation area is flush with the starting position of the first section of the skin cloth laying area, and the first section of the skin cloth laying area is larger than the prefabricated component installation area;

[0008] Step 4: Determine the starting position and the ending position of the first section of the kitting material laying area, wherein the starting position of the first section of the kitting material laying area is aligned with the starting position of the first section of the skin cloth laying area, and the first section of the kitting material laying area is smaller than the first section of the skin cloth laying area, but larger than the preform installation area described in step 3;

[0009] Step 5: Determine the starting position and the ending position of the second section of the skin cloth laying area, wherein the starting position of the second section of the skin cloth laying area and the ending position of the first section of the skin cloth laying area in step 2 have an overlapping area;

[0010] Step 6: Determine the starting and ending positions of the beam installation area;

[0011] Step 7: Determine the starting position and the ending position of the second section of the laying area of ​​the kit, the ending position of the second section of the laying area of ​​the kit covers the starting position of the beam installation area in step 6, and the starting position of the second section of the laying area of ​​the kit does not overlap with the ending position of the first section of the laying area of ​​the kit in step 4;

[0012] Step 8: Determine the starting position and the ending position of the third section of the laying area of ​​the kitting material, wherein the starting position of the third section of the laying area of ​​the kitting material has an overlapping area with the ending position of the first section of the laying area of ​​the kitting material, and the ending position of the third section of the laying area of ​​the kitting material has an overlapping area with the starting position of the second section of the laying area of ​​the kitting material;

[0013] Step 9: Laying the first section of skin cloth in the first section of skin cloth laying area in step 2;

[0014] Step 10: simultaneously laying the first section of the cover material in the first section of the cover material laying area in step 4, and laying the second section of the cover cloth in the second section of the cover cloth laying area in step 5;

[0015] Step 11: simultaneously installing prefabricated parts in the prefabricated part installation area in step 3, and laying the second section of the casing material in the second section of the casing material laying area in step 7;

[0016] Step 12: Simultaneously, the beam is installed in the beam installation area in step 6, and the third section of the casing is laid in the third section of the casing laying area in step 8.

[0017] Preferably, the width of the overlapping area in step 5 and step 8 is 50-100 mm respectively.

[0018] Preferably, after step 12, the following steps are also included:

[0019] Step 13: placing a core material avoiding the position of the beam and the prefabricated part, wherein the thickness of the core material is the same as that of the beam;

[0020] Step 14: continuously laying the fourth section of the set of materials, wherein the starting end of the fourth section of the set of materials is flush with the starting position of the first section of the set of materials, and the ending end of the fourth section of the set of materials is flush with the ending position of the second section of the set of materials;

[0021] Step 15: continuously lay the third section of skin cloth, wherein the starting end of the third section of skin cloth is flush with the starting position of the first section of skin cloth, and the ending end of the third section of skin cloth is flush with the ending position of the second section of skin cloth.

[0022] Preferably, the segmented wind turbine blade laying method further includes a demoulding step after step 15.

[0023] A wind turbine blade is characterized in that it is manufactured by adopting the above-mentioned segmented wind turbine blade laying method.

[0024] Preferably, the wind turbine blade includes an upper shell and a lower shell, a core material is provided between the upper shell and the lower shell, the lower shell includes a lower shell skin cloth layer composed of a first section of skin cloth and a second section of skin cloth, an overlapping area is provided between the first section of skin cloth and the second section of skin cloth, and in the overlapping area of ​​the lower shell skin cloth layer, the second section of skin is located above the first section of skin cloth; the lower shell also includes a lower shell casing layer composed of a first section of casing, a second section of casing and a third section of casing, wherein both ends of the third section of casing respectively have overlapping areas with the first section of casing and the second section of casing, and in the overlapping area of ​​the lower shell casing layer, the third section of casing is located above the first section of casing and the second section of casing.

[0025] Preferably, the upper shell includes a third section of skin cloth, and the third section of skin cloth is an integral part; the upper shell also includes a fourth section of cover material, and the fourth section of cover material is an integral part.

[0026] Preferably, the width of the overlapping area of ​​the lower shell skin fabric layer and the overlapping area of ​​the lower shell casing layer are both 50-100 mm.

[0027] On the basis of being in accordance with the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present invention.

[0028] The reagents and raw materials used in the present invention are commercially available.

[0029] In the present invention, the above-mentioned preferred conditions can be arbitrarily combined on the basis of conforming to the common sense in the art to obtain various preferred embodiments of the present invention.

[0030] The positive and progressive effects of the present invention are: the segmented wind turbine blade laying method of the present invention disconnects the skin cloth and adjusts the order of laying the set material, so that the set material, beam and prefabricated parts can be placed at the same time without affecting the design structure, effectively shortening the production cycle; and the skin cloth, base material, prefabricated parts and beam can be laid at the root, middle and tip of the blade at the same time, which improves the utilization rate of personnel and avoids the need for a lot of time to operate a certain link, which causes the personnel to be idle in the subsequent process. The wind turbine blade of the present invention has the advantages of short production cycle and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a top view of the structure after laying the first section of the skin cloth laying area in a preferred embodiment of the segmented wind turbine blade laying method of the present invention.

[0032] Figure 2This is a top view of the structure after laying the first section of the base material area and the second section of the skin cloth area.

[0033] Figure 3 A top view of the structure after the precast elements have been installed and the second section of the substrate area has been laid.

[0034] Figure 4 A top view of the structure after the girders have been installed and the third section of the base material area has been laid.

[0035] Figure 5 It is a schematic diagram of the layers when the segmented wind turbine blade laying method of the present invention is used.

[0036] Figure 6 It is a schematic diagram of the structure of the lower shell layer of the wind turbine blade in the present invention. DETAILED DESCRIPTION

[0037] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples. The experimental methods in the following examples without specifying specific conditions are carried out according to conventional methods and conditions, or selected according to the product specifications.

[0038] Combination Figure 1-5 The sectional wind turbine blade laying method in this embodiment is described. The laying method in this embodiment includes the following steps:

[0039] Step 1: Place a blade mold 1 for laying wind turbine blades, with the surface of the blade mold 1 to be laid facing upward. In this embodiment, the blade root is on the left side, and the blade tip is on the right side. The setting direction can be adjusted as needed.

[0040] Step 2: Determine the starting position 111 and the ending position 112 of the laying area 11 for laying the first section of the skin cloth.

[0041] Step 3: Determine the starting position 121 and the ending position 122 for laying the preform installation area 12, wherein the starting position 121 of the preform installation area 12 is flush with the starting position 111 of the first section skin cloth laying area 11, both are located at the root of the blade mold 1, and the first section skin cloth laying area 11 is larger than the preform installation area 12.

[0042] Step 4: Determine the starting position 131 and the ending position 132 of the first section of the kit laying area 13, wherein the starting position 131 of the first section of the kit laying area 13 is aligned with the starting position 111 of the first section of the skin cloth laying area 11, and the first section of the kit laying area 13 is smaller than the first section of the skin cloth laying area 11, but larger than the preform installation area 12.

[0043] Step 5: Determine the starting position 141 and the ending position 142 of the second skin cloth laying area 14, wherein the starting position 141 of the second skin cloth laying area 14 has an overlapping area with the ending position 111 of the first skin cloth laying area 11.

[0044] Step 6: Determine the starting position 151 and the ending position 152 of the beam installation area 15 .

[0045] Step 7: Determine the starting position 161 and the ending position 162 of the second section material laying area 16. The ending position 162 of the second section material laying area 16 covers the starting position 151 of the beam installation area 15. The starting position 161 of the second section material laying area 16 does not overlap with the ending position 131 of the first section material laying area 13.

[0046] Step 8: Determine the starting position 171 and the ending position 172 of the third-section kit laying area 17, wherein the starting position 171 of the third-section kit laying area 17 has an overlapping area with the ending position 132 of the first-section kit laying area 13, and the ending position 172 of the third-section kit laying area 17 has an overlapping area with the starting position 161 of the second-section kit laying area 16.

[0047] Step 9: Lay out the first section of skin cloth in the first section of skin cloth laying area 11 of step 2.

[0048] Step 10: simultaneously laying the first section of the casing material in the first section casing material laying area 13 of step 4 and laying the second section of the covering cloth in the second section of the covering cloth laying area 14 of step 5 .

[0049] Step 11: Install prefabricated parts (not shown) in the prefabricated part installation area 12 of step 3 , and at the same time, lay the second section of the casing material in the second section of the casing material laying area 16 of step 7 .

[0050] Step 12: Install the beam (not shown) in the beam installation area 15 in step 6, and at the same time, lay the third section of the casing material in the third section of the casing material laying area 17 in step 8.

[0051] Step 13: Place a core material (not shown) avoiding the position of the beam and the prefabricated parts, and the thickness of the core material is the same as that of the beam.

[0052] Step 14: continuously lay the fourth section of the material, wherein the starting end of the fourth section of the material is flush with the starting position of the first section of the material, and the ending end of the fourth section of the material is flush with the ending position of the second section of the material; this step is the same as the conventional laying method and will not be described in detail here.

[0053] Step 15: Continuously lay the third section of skin cloth, the starting end of the third section of skin cloth is flush with the starting position of the first section of skin cloth, and the ending end of the third section of skin cloth is flush with the ending position of the second section of skin cloth. This step is the same as the conventional laying method and will not be repeated here.

[0054] The width of the overlapping area in step 5 and step 8 is 50-100 mm respectively. After all the laying and installation work is completed, the demoulding step is performed.

[0055] like Figure 6 It is a schematic diagram of the layer structure of the wind turbine blade in this embodiment.

[0056] The wind turbine blade comprises an upper shell and a lower shell, wherein a core material is provided between the upper shell and the lower shell, wherein the lower shell comprises a lower shell skin cloth layer composed of a first section of skin cloth 101 and a second section of skin cloth 102, wherein an overlapping area 103 is provided between the first section of skin cloth 101 and the second section of skin cloth 102, and in the overlapping area 103 of the lower shell skin cloth layer, the second section of skin 102 is located above the first section of skin cloth 101.

[0057] The lower shell also includes a lower shell casing layer composed of a first section casing 201, a second section casing 202 and a third section casing 203, wherein the two ends of the third section casing 203 respectively have overlapping areas 204 with the first section casing 201 and the second section casing 202, and in the overlapping area 204 of the lower shell casing layer, the third section casing 203 is located above the first section casing 201 and the second section casing 202. A prefabricated part is provided on the first section casing 201, and a beam is provided on the second section casing 202. As far as the wind turbine blade is concerned, the positional relationship of the lower shell skin fabric layer, the lower shell casing layer, the prefabricated part and the beam in the lower shell is the same as that of the existing blade, and will not be repeated here. The lower shell skin fabric layer and the lower shell casing layer are made of glass fiber material.

[0058] The upper shell includes a third section of skin cloth which is laid continuously, and the third section of skin cloth is a whole; the upper shell also includes a fourth section of cover material which is laid continuously, and the fourth section of cover material is also a whole.

[0059] In this embodiment, the overlapping width of the overlapping area 103 and the overlapping area 204 is 60 mm, and the width is the distance from the overlapping area extending from the root of the blade to the tip of the blade. Of course, in other embodiments, the width of the overlapping area of ​​the skin fabric layer and the overlapping area of ​​the cover material layer can be selected from 50-100 mm.

[0060] The technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

Claims

1. A segmented wind turbine blade laying method, characterized in that: It comprises the following steps, wherein steps 9 to 12 are performed in sequence: Step 1: placing a blade mold for laying wind turbine blades, with the surface of the blade mold to be laid facing upward, and the blade mold including a root and a blade tip; Step 2: Determine the starting and ending positions of the first section of the skin cloth laying area; Step 3: Determine the starting position and the ending position of the prefabricated component installation area, wherein the starting position of the prefabricated component installation area is flush with the starting position of the first section of the skin cloth laying area, and the first section of the skin cloth laying area is larger than the prefabricated component installation area; Step 4: Determine the starting position and the ending position of the first section of the kitting material laying area, wherein the starting position of the first section of the kitting material laying area is aligned with the starting position of the first section of the skin cloth laying area, and the first section of the kitting material laying area is smaller than the first section of the skin cloth laying area, but larger than the preform installation area described in step 3; Step 5: Determine the starting position and the ending position of the second section of the skin cloth laying area, wherein the starting position of the second section of the skin cloth laying area and the ending position of the first section of the skin cloth laying area in step 2 have an overlapping area; Step 6: Determine the starting and ending positions of the beam installation area; Step 7: Determine the starting position and the ending position of the second section of the laying area of ​​the kit, the ending position of the second section of the laying area of ​​the kit covers the starting position of the beam installation area in step 6, and the starting position of the second section of the laying area of ​​the kit does not overlap with the ending position of the first section of the laying area of ​​the kit in step 4; Step 8: Determine the starting position and the ending position of the third section of the laying area of ​​the kitting material, wherein the starting position of the third section of the laying area of ​​the kitting material has an overlapping area with the ending position of the first section of the laying area of ​​the kitting material, and the ending position of the third section of the laying area of ​​the kitting material has an overlapping area with the starting position of the second section of the laying area of ​​the kitting material; Step 9: Laying the first section of skin cloth in the first section of skin cloth laying area in step 2; Step 10: simultaneously laying the first section of the cover material in the first section of the cover material laying area in step 4, and laying the second section of the cover cloth in the second section of the cover cloth laying area in step 5; Step 11: simultaneously installing prefabricated parts in the prefabricated part installation area in step 3, and laying the second section of the casing material in the second section of the casing material laying area in step 7; Step 12: Simultaneously, the beam is installed in the beam installation area in step 6, and the third section of the casing is laid in the third section of the casing laying area in step 8.

2. The segmented wind turbine blade laying method according to claim 1, characterized in that: The width of the overlapping area in step 5 and step 8 is 50-100 mm respectively.

3. The method for laying segmented wind turbine blades according to claim 2, characterized in that: After step 12, the following steps are also included: Step 13: placing a core material avoiding the position of the beam and the prefabricated part, wherein the thickness of the core material is the same as that of the beam; Step 14: continuously laying the fourth section of the set of materials, wherein the starting end of the fourth section of the set of materials is flush with the starting position of the first section of the set of materials, and the ending end of the fourth section of the set of materials is flush with the ending position of the second section of the set of materials; Step 15: continuously lay the third section of skin cloth, wherein the starting end of the third section of skin cloth is flush with the starting position of the first section of skin cloth, and the ending end of the third section of skin cloth is flush with the ending position of the second section of skin cloth.

4. The method for laying segmented wind turbine blades according to claim 3, characterized in that: The segmented wind turbine blade laying method further includes a demoulding step after step 15 .

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