CN218509631U - Wind power generation tower cylinder based on double-sided stainless steel composite board - Google Patents
Wind power generation tower cylinder based on double-sided stainless steel composite board Download PDFInfo
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- CN218509631U CN218509631U CN202222564285.4U CN202222564285U CN218509631U CN 218509631 U CN218509631 U CN 218509631U CN 202222564285 U CN202222564285 U CN 202222564285U CN 218509631 U CN218509631 U CN 218509631U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/728—Onshore wind turbines
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Abstract
The utility model discloses a wind power generation tower section of thick bamboo based on two-sided stainless steel composite sheet relates to wind power generation technical field. The wind power generation tower comprises a tower cylinder body steel plate, wherein the tower cylinder body steel plate is of a double-sided stainless steel composite plate and is of a fan-shaped structure, the straight sides of the tower cylinder body steel plate are provided with two half V-shaped grooves, the two straight sides are in butt joint to form two V-shaped grooves, and the V-shaped grooves are connected in a welding mode to form a wind power generation tower cylinder. The steel plate of the tower body is a high-strength steel double-sided stainless steel composite plate with the strength of 500-700MPa. The wind power generation tower cylinder is free from corrosion prevention maintenance throughout the life, the corrosion prevention cost in the later period of the tower cylinder is saved due to environmental protection, and the power generation operation time is improved; the corrosion-resistant service life can reach more than 40 years, and the efficiency of wind power generation can be improved under the condition of prolonging the service life of a fan or replacing a power generation fan; the thickness of the steel plate of the wind power generation tower barrel is reduced by about 40-50%, the weight of the tower barrel is greatly reduced, and the production cost, the transportation cost and the hoisting cost of the wind power generation tower barrel are reduced.
Description
Technical Field
The utility model relates to a wind power generation technical field especially indicates a wind power generation tower section of thick bamboo based on two-sided stainless steel composite sheet.
Background
At present, offshore wind power generation tower cylinders in China are made of Q355D plates, and the strength level of steel plates is low, so that the weight of the wind power generation tower cylinders is increased, and the transportation and hoisting cost of the wind power generation tower cylinders is increased. The inner surface and the outer surface of the power generation tower cylinder are all subjected to corrosion prevention by spraying multiple layers of paint, the comprehensive cost of the wind power generation tower cylinder is increased by spraying the paint, and the wind power cost is increased. The marine environment is seriously corroded, the paint of the tower drum is quickly corroded and falls off, and the anti-corrosion treatment is required every few years, so that the later cost of the wind power generation is increased, the anti-corrosion cost in the service life period of 20 years is 2-3 times of the cost of the tower drum, the subsequent anti-corrosion cost of the tower drum is high, and meanwhile, the paint of the wind power generation tower drum falls off and the anti-corrosion treatment of repainting in the later period can greatly influence marine life. Due to the serious erosion of the offshore wind power generation tower cylinder, the redundant thickness of the wind tower steel plate is up to more than 10% when the wind power generation tower cylinder is designed. This increases the weight of the wind power tower, which increases the manufacturing, transportation and installation costs of the wind power tower. The corrosion resistance of the tower is poor, so that the life cycle of the wind power generation system is limited, and the design life is 20 years.
SUMMERY OF THE UTILITY MODEL
The utility model provides a wind power generation tower section of thick bamboo based on two-sided stainless steel composite sheet, current wind power generation tower section of thick bamboo have following problem, and weight is big, and is with high costs, need spray paint, anticorrosive with high costs, not environmental protection.
In order to solve the above technical problem, an embodiment of the present invention provides the following solutions:
an embodiment of the utility model provides a wind power generation tower section of thick bamboo based on two-sided stainless steel composite sheet, including tower cylinder body steel sheet, tower cylinder body steel sheet adopts two-sided stainless steel composite sheet, tower cylinder body steel sheet is fan-shaped structure, the straight flange of tower cylinder body steel sheet has two half V-arrangement grooves, two straight flange docks of tower cylinder body steel sheet form two V-arrangement grooves, the V-arrangement groove welded connection of tower cylinder body steel sheet forms a wind power generation tower section of thick bamboo.
Preferably, the steel plate of the tower barrel body is a high-strength steel double-sided stainless steel composite plate, and the strength of the high-strength steel double-sided stainless steel composite plate is 500-700MPa.
Preferably, the thickness of the double-sided stainless steel composite plate is 30-70mm, and the thickness of the coating layer of the double-sided stainless steel composite plate is 1-2mm.
Preferably, the cladding of the double-sided stainless steel composite plate is 304, 304L, 316L, 31254, 2205 grade stainless steel.
Preferably, the base layer of the double-sided stainless steel composite plate is high-strength steel with the strength of 500-700MPa.
Preferably, the depth of the V-shaped groove is 14-33mm, and the opening width of the V-shaped groove is 20-30mm.
Preferably, the arc-shaped edge of the tower cylinder body steel plate is provided with two half V-shaped grooves, after the arc-shaped edges of two adjacent wind power generation tower cylinders are in butt joint, the two half V-shaped grooves form a V-shaped groove, and the V-shaped grooves of the tower cylinder body steel plate are welded and connected to form the wind power generation tower cylinder.
The above technical scheme of the utility model at least include following beneficial effect:
in the scheme, the offshore wind power generation tower cylinder made of the high-strength steel double-sided stainless steel composite plate is adopted, the wind power generation tower cylinder is free from corrosion prevention maintenance throughout the life, the corrosion prevention cost in the later period of the tower cylinder is saved, the power generation operation time is improved, the ocean pollution is reduced, and green and low-carbon production is realized; the corrosion resistance life of the wind power generation tower cylinder made of the high-strength steel can reach more than 40 years, and the wind power generation efficiency can be improved under the condition of prolonging the service life of a fan or replacing a generating fan; the high-strength steel is adopted to replace Q355D to manufacture the wind power generation tower drum, the thickness of the steel plate of the wind power generation tower drum is reduced by nearly 30% -40%, and the thickness of the steel plate of the wind power generation tower drum is reduced by nearly 40% -50% under the condition that the strength of the wind power generation tower drum is ensured. The safety coefficient of a power generation fan system and the fatigue life of the wind power generation tower drum are considered, one third of the thickness of a steel plate of the wind power generation tower drum is reduced, the weight of the tower drum is greatly reduced, and the production cost, the transportation cost and the hoisting cost of the wind power generation tower drum are reduced.
Drawings
FIG. 1 is a schematic structural view of a wind power generation tower based on a double-sided stainless steel composite plate according to the present invention;
FIG. 2 is a schematic structural view of a steel plate of a tower body of the present invention;
FIG. 3 is a schematic cross-sectional view of a groove at the E-point of the steel plate of the tower body of the present invention;
FIG. 4 is a schematic cross-sectional view of a V-shaped groove at the E-point of the steel plate of the tower body of the present invention;
FIG. 5 is a schematic view of a weld joint of a tower of a wind power generation system according to the present invention.
Reference numerals are as follows:
1. a wind power generation tower; 2. a steel plate of the tower body; 21. a straight edge; 22. an arc-shaped edge; 23. a half V-shaped groove; 3. v-shaped grooves; 4. a base layer; 5. and (5) coating.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
Example one
As shown in fig. 1-4, the embodiment of the utility model provides a wind power generation tower section of thick bamboo based on two-sided stainless steel composite sheet, including tower body steel sheet 2, tower body steel sheet 2 adopts the chinese patent that the notice number is CN 105945067B's production method production high-strength steel two-sided stainless steel composite sheet, and tower body steel sheet 2 is fan-shaped structure, and tower body steel sheet 2's straight flange 21 has two half V-shaped grooves 23, and two straight flange 21 dockings of tower body steel sheet 2 form two V-shaped grooves 3, and tower body steel sheet 2's V-shaped groove 3 welded connection forms wind power generation tower section of thick bamboo 1. Specifically, the arc-shaped edge 22 of the tower body steel plate 2 is provided with a half V-shaped groove 23, the arc-shaped edges 22 of two adjacent wind power generation tower cylinders 1 are butted to form a V-shaped groove 3, and the V-shaped grooves 3 of the tower body steel plate 2 are welded to form the wind power generation tower cylinders 1. Specifically, the tower body steel plate 2 is made of a high-strength steel double-sided stainless steel composite plate, and the strength of the high-strength steel double-sided stainless steel composite plate is 500-700MPa. In the embodiment, the offshore wind power generation tower barrel 1 is made of the high-strength steel double-sided stainless steel composite plate, and the wind power generation tower barrel 1 is free of corrosion prevention maintenance throughout the life, so that the corrosion prevention cost in the later period of the tower barrel is saved, and the power generation operation time is improved; the corrosion resistance service life of the wind power generation tower cylinder 1 made of the high-strength steel can reach more than 40 years, the service life of a fan is prolonged or the generation fan is replaced, the wind power generation efficiency is improved, and green low-carbon production is realized; the wind power generation tower cylinder 1 is made of high-strength steel instead of Q355D, the thickness of the steel plate of the wind power generation tower cylinder 1 is reduced by nearly 30% -40%, and the thickness of the steel plate of the wind power generation tower cylinder 1 is reduced by nearly 40% -50% under the condition that the strength of the wind power generation tower cylinder 1 is guaranteed. Considering the safety coefficient of the power generation fan system and the fatigue life of the wind power generation tower drum 1, the thickness of the steel plate of the wind power generation tower drum 1 is reduced by one third, the weight of the tower drum is greatly reduced, and the transportation and hoisting cost of the wind power generation tower drum 1 is reduced.
The cladding 5 of the double-sided stainless steel composite plate is stainless steel with the grades of 304, 304L, 316L, 31254, 2205 and the like. The double-sided stainless steel composite board has the beneficial effects that the micro-alloy components such as nickel, chromium, molybdenum, niobium, vanadium, titanium and the like in the base board are added into the base board, and the table 1 shows. The high strength requirement of the wind tower plate is met, a large amount of welding requirements are met, and the welding efficiency is improved.
Table 1 composition table% of double-sided stainless steel composite plate of example one
Preferably, the thickness of the double-sided stainless steel composite plate is 30-70mm, and the thickness of the coating 5 of the double-sided stainless steel composite plate is 1-2mm.
Preferably, the depth of the V-shaped groove 3 is 14-33mm, and the opening width of the V-shaped groove 3 is 20-30mm.
The process of forming the wind power generation tower cylinder 1 by welding and connecting the V-shaped groove 3 of the tower cylinder body steel plate 2 of the embodiment is as follows:
(1) Cutting and blanking a high-strength steel (500-700 MPa) double-sided stainless steel composite plate according to design requirements, wherein the high-strength steel composite plate is in an ABCD ring sector shape shown in figure 2;
(2) Two symmetrical half V-shaped grooves 23 are respectively punched on the periphery of the ABCD ring sector-shaped steel plate (the straight edge 21 is provided with the two half V-shaped grooves 23, and the arc-shaped edge 22 is provided with the half V-shaped grooves 23), and the cross section of the groove at the 2,E point of the steel plate of the tower body is shown in FIG. 3;
(3) The steel plate 2 of the tower cylinder body is rolled according to the design requirement, the middle parts of the two half V-shaped grooves 23 are attached tightly, and the cross section of the groove at the 3,E point of the two complete straight-slit V-shaped grooves are formed at the two sides of the E point along the AB welding line as shown in figure 4.
(4) And (3) flattening the welding seams of the V-shaped grooves 3 on two sides of the point E by using a submerged arc welding machine and selecting corresponding high-strength steel welding wires, wherein the welding seams F and G on the two sides are shown in the figure 5.
(5) On the outer side surfaces of the welding seams F and G, argon arc welding is adopted, and stainless steel welding wires with a grade higher than that of the coating layer 5 are selected for welding the transition layer respectively, and welding seams H and I on the two sides are shown in figure 5;
(6) Finally, argon arc welding and stainless steel welding wires which are the same as or higher than the coating 5 in mark are selected to be respectively welded on the outer side surfaces of the welding lines H and I in a covering mode, welding lines J and K on the two sides are shown in figure 5, and the welding of the single wind power generation tower barrel 1 is finished
(7) The arc-shaped edges 22 of the tower cylinder body steel plates 2 are provided with half V-shaped grooves 23, the arc-shaped edges 22 of two adjacent wind power generation tower cylinders 1 are butted to form V-shaped grooves 3, and the V-shaped grooves 3 of the adjacent tower cylinder body steel plates 2 are welded by the method to form a complete tower cylinder.
Example two
The embodiment of the utility model provides a wind power generation tower section of thick bamboo based on two-sided stainless steel composite sheet, on the basis of embodiment one, two-sided stainless steel composite sheet's thickness is 40mm, wherein basic unit 4 is Q550 steel, and thickness is 38mm; the coating layer 5 is 316L stainless steel with the thickness of 1mm, the strength of the double-sided stainless steel composite plate is 550MPa, the straight edge 21 of the tower body steel plate 2 is 3041mm long, the outer arc length is 18850mm, (the corresponding arc radius is 18000 mm), the inner arc length is 15708mm (the corresponding arc radius is 15000 mm), and the chemical composition of the substrate is shown in Table 2.
Table 2 composition table% of double-sided stainless steel composite plate of example one
The process of forming the wind power generation tower cylinder 1 by welding and connecting the V-shaped groove 3 of the tower cylinder body steel plate 2 of the embodiment is as follows:
(1) Respectively punching two symmetrical semi-V-shaped bevels 23 with the depth of 18mm and the width of an upper opening of 15mm on two straight sides 21 of the double-sided stainless steel composite plate; respectively punching two symmetrical semi-V-shaped grooves 23 with the depth of 18mm and the width of an upper opening of 15mm on two arc-shaped edges 22 of the double-sided stainless steel composite plate to form a tower body steel plate 2;
(2) The steel plate 2 of the tower cylinder body is rolled into a tower cylinder with the height of 3000mm, the diameter of a lower opening of 6000mm and the diameter of an upper opening of 5000mm, so that the E points in the middle of the two half V-shaped grooves 23 are tightly attached, and two complete V-shaped grooves 3 with the depth of 18mm and the width of the upper opening of 30mm are formed on two sides of the E points.
(3) Adopting a 1250A submerged arc welding machine, using welding current of 400-600A, and selecting alloy steel welding wires with the diameter of 5mm and the strength of 600MPa to weld the two sides of the welding seam of the V-shaped groove 3 at the two sides flat.
(4) And (3) carrying out transition layer welding on the outer side surfaces of welding seams F and G on the two sides by using an argon arc welding method and using 309L stainless steel welding wires with the diameters of 1.2mm and welding currents of 100-200A for separation respectively.
(6) And finally, performing cover face welding on the outer side surfaces of welding seams H and I on two sides by argon arc welding and selecting 309L stainless steel welding wires with the welding current of 100-200A and the diameter of 1.2mm, wherein the welding seams H and I on the two sides are welded by a single tower barrel with the height of 3000mm, the diameter of a lower opening of 6000mm and the diameter of an upper opening of 5000 mm.
(7) The arc edges 22 of two adjacent wind power generation tower cylinders 1 are butted to form a V-shaped groove 3, and the V-shaped grooves 3 of the steel plates 2 of the adjacent tower cylinders are welded by the method to form a complete tower cylinder.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. The utility model provides a wind power generation tower section of thick bamboo based on two-sided stainless steel composite sheet, its characterized in that includes tower cylinder body steel sheet, tower cylinder body steel sheet adopts two-sided stainless steel composite sheet, tower cylinder body steel sheet is fan-shaped structure, the straight flange of tower cylinder body steel sheet has two half V-arrangement grooves, two straight flange butt joints of tower cylinder body steel sheet form two V-arrangement grooves, the V-arrangement groove welded connection of tower cylinder body steel sheet forms a wind power generation tower section of thick bamboo.
2. The double-sided stainless steel composite board-based wind power generation tower drum according to claim 1, wherein the tower drum body steel plate is a high-strength steel double-sided stainless steel composite board, and the strength of the high-strength steel double-sided stainless steel composite board is 500-700MPa.
3. The double-sided stainless steel composite board-based wind power generation tower of claim 1, wherein the double-sided stainless steel composite board has a thickness of 30-70mm and a coating thickness of 1-2mm.
4. The double-sided stainless steel composite plate-based wind power generation tower of claim 1, wherein the cladding of the double-sided stainless steel composite plate is 304, 304L, 316L, 31254, 2205 grades of stainless steel.
5. The double-sided stainless steel composite board-based wind power generation tower drum according to claim 1, wherein the base layer of the double-sided stainless steel composite board is high-strength steel with a strength of 500-700MPa.
6. The double-sided stainless steel composite plate-based wind power generation tower drum according to claim 1, wherein the depth of the V-shaped groove is 14-33mm, and the opening width of the V-shaped groove is 20-30mm.
7. The double-sided stainless steel composite plate-based wind power generation tower drum according to claim 1, wherein the arc-shaped edges of the tower drum body steel plate are provided with two half V-shaped grooves, and after the arc-shaped edges of two adjacent wind power generation tower drums are in butt joint, the two half V-shaped grooves form a V-shaped groove, and the V-shaped grooves of the tower drum body steel plate are welded and connected to form the wind power generation tower drum.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222564285.4U CN218509631U (en) | 2022-09-27 | 2022-09-27 | Wind power generation tower cylinder based on double-sided stainless steel composite board |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222564285.4U CN218509631U (en) | 2022-09-27 | 2022-09-27 | Wind power generation tower cylinder based on double-sided stainless steel composite board |
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| CN218509631U true CN218509631U (en) | 2023-02-21 |
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| CN202222564285.4U Active CN218509631U (en) | 2022-09-27 | 2022-09-27 | Wind power generation tower cylinder based on double-sided stainless steel composite board |
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- 2022-09-27 CN CN202222564285.4U patent/CN218509631U/en active Active
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