Lifting appliance for lifting offshore wind power dry-type transformer and offshore wind power dry-type transformer
By designing the lifting lugs and frame structure of the lifting equipment, the problems of cumbersome operation and insufficient safety during the lifting of offshore wind power dry-type transformers were solved, realizing safe lifting without high-altitude operations and opening windows in the protective shell, and adapting to the needs of different transformer models.
Patent Information
- Application Number
- CN202422427880.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-08
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-10-08
AI Technical Summary
The existing lifting methods for offshore wind power dry-type transformers are cumbersome, require working at heights, and involve opening windows in the protective casing, resulting in insufficient safety and protection.
Design a lifting device including lifting lugs and a lifting frame. The lifting lugs are located on the outside of the protective housing, and the lifting frame is located on the inside. They are connected by fasteners and connected to the upper clamp of the transformer to achieve lifting operations without opening the protective housing.
It eliminates the need for working at heights, prevents high humidity and salt spray from entering the transformer room, ensures the safety of operators, simplifies on-site operation procedures, and is adaptable to various transformer models.
Smart Images
Figure CN223468070U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to transformer technical field, especially a hoist for hoisting offshore wind power dry-type transformer and offshore wind power dry-type transformer. BACKGROUND
[0002] In order to adapt to the severe climate environment of offshore, offshore wind power dry-type transformer needs to be protected in the protective shell with high corrosion resistance, and in the process of transfer and offshore hoisting, the shell is not opened as far as possible to prevent high salt mist and high humidity in the air from entering the transformer chamber. In the related art, the transfer and hoisting of offshore wind power dry-type transformer usually has two ways, one of which is to open a skylight on the top of the protective shell, when hoisting, the operator climbs to the top of the protective shell to open the skylight, and uses the lifting lug on the transformer clamp to hoist the whole transformer and shell, and then climbs to the top of the protective shell to close the skylight after hoisting. Because there is a height difference between the lifting lug on the clamp and the top of the protective shell, the operator needs to work at a high altitude, which leads to complicated operation process. The other way is to fix one end of the hoisting cable to the bottom of the transformer, which has certain requirements for the specifications of the hoist, and needs to ensure the length and strength of the hoist. SUMMARY
[0003] The utility model aims at solving one of the technical problems in the prior art. Therefore, the utility model provides a hoist for hoisting offshore wind power dry-type transformer, which is convenient in operation, ensures the safety of the operator, and avoids opening the protective shell to protect the transformer.
[0004] The utility model further provides an offshore wind power dry-type transformer using the hoist.
[0005] The hoist for hoisting offshore wind power dry-type transformer according to the first aspect of the utility model is used for assembling on the protective shell of offshore wind power dry-type transformer, wherein the hoist comprises a lifting lug and a lifting frame, the lifting lug is used for being arranged outside the top plate of the protective shell, the lifting frame is used for being arranged inside the top plate of the protective shell, and is adapted to be fixedly connected with the lifting lug, the lifting frame is provided with a connecting part, and the connecting part is used for being connected with the upper clamp of the offshore wind power dry-type transformer through a connecting piece.
[0006] The lifting appliance for lifting the offshore wind power dry-type transformer has the following beneficial effects: the lifting appliance is pre-assembled to the protective shell of the offshore wind power dry-type transformer, the lifting lug is located outside the protective shell, the lifting frame is connected with the lifting lug through a fixing member, the lifting frame is connected with the upper clamping piece of the offshore wind power dry-type transformer through a connecting member, when the offshore wind power dry-type transformer is lifted, the cable is only needed to be connected with the lifting lug and the lifting hook of the lifting equipment, and then the lifting operation can be performed, the protective shell of the transformer does not need to be opened, high-humidity and high-salt-mist gas is prevented from entering the transformer chamber, the operator also does not need to perform high-altitude operation, the safety of the operator can be ensured, no special requirement is needed for the lifting appliance, and on-site operation is facilitated.
[0007] According to some embodiments of the present application, the lifting frame comprises two first structural members extending along the length direction of the protective shell and at least one second structural member extending along the width direction of the protective shell, the two first structural members are oppositely arranged, and the second structural member is fixedly connected with the two first structural members respectively.
[0008] According to some embodiments of the present application, the first structural member comprises a first wall, a second wall and a third wall arranged in sequence, the first wall and the third wall are oppositely arranged, the two sides of the second wall are connected with the first wall and the third wall respectively, the first wall is provided with a first connecting hole at both ends, and the connecting part is arranged on the third wall.
[0009] According to some embodiments of the present application, the connecting part is configured as a second connecting hole, and the second connecting hole is used for allowing the connecting member to pass through.
[0010] According to some embodiments of the present application, a reinforcing rib is arranged between the first wall and the third wall, and the reinforcing rib is connected with the first wall, the second wall and the third wall respectively.
[0011] According to some embodiments of the present application, the lifting lug comprises a connecting plate and a hanging part, the hanging part is arranged on the connecting plate and is adapted to be connected with the hanging part of the lifting equipment, the connecting plate is provided with a mounting hole, the mounting hole is opposite to the corresponding first connecting hole, and the lifting lug is fixedly connected with the first structural member through the fixing member passing through the mounting hole and the first connecting hole.
[0012] According to some embodiments of the present application, the connecting plate close to one side of the protective shell is provided with a mounting groove, the mounting groove is arranged around the circumference of the mounting hole, and the mounting groove is used for accommodating a sealing ring.
[0013] According to some embodiments of the present application, the hanging part is provided with a lifting hole, the lifting hole penetrates through the hanging part, and the lifting hole is provided with a chamfer.
[0014] According to some embodiments of the utility model, the lifting lug is provided with at least three, and the at least three lifting lugs extend along the radial extension line of the top plate surface of the protective shell towards the center of the planar figure formed by the at least three lifting lugs.
[0015] The offshore wind power dry-type transformer according to the second aspect of the utility model comprises the lifting appliance for hoisting the offshore wind power dry-type transformer.
[0016] The offshore wind power dry-type transformer according to the utility model has at least the following beneficial effects: the transformer is pre-assembled with the lifting appliance, the lifting lug is located outside the protective shell, the lifting bracket is connected with the lifting lug through the fixing member, the upper clamp of the offshore wind power dry-type transformer is connected with the lifting bracket through the connecting member, when hoisting the offshore wind power dry-type transformer, only the cable needs to be connected with the lifting lug and the lifting hook of the lifting equipment, and then hoisting operation can be performed, the protective shell of the transformer does not need to be opened, high-humidity and high-salt-mist gas cannot enter the transformer chamber, the operator also does not need to perform high-altitude operation, the safety of the operator can be ensured, no special requirement is needed for the lifting appliance, and on-site operation is facilitated.
[0017] Additional aspects and advantages of the utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS
[0018] The utility model will be further explained in connection with the drawings and embodiments, in which:
[0019] Figure 1 It is the three-dimensional schematic view of the lifting bracket of the lifting appliance of an embodiment of the utility model;
[0020] Figure 2 It is the three-dimensional schematic view of the lifting lug of the lifting appliance of an embodiment of the utility model;
[0021] Figure 3 It is the three-dimensional assembly schematic view of the lifting appliance of an embodiment of the utility model;
[0022] Figure 4 It is the three-dimensional assembly schematic view of the lifting appliance of an embodiment of the utility model from another view;
[0023] Figure 5 It is the three-dimensional schematic view of the upper clamp of the offshore wind power dry-type transformer of an embodiment of the utility model.
[0024] Reference Signs List:
[0025] Offshore wind power dry-type transformer 100, silicon steel sheet 110, upper clamp 120, third connecting hole 121, connecting member 130;
[0026] Protective shell 200, top plate 210;
[0027] Lifting lug 300, connecting plate 310, mounting hole 311, mounting groove 312, hanging piece 320, lifting hole 321, chamfer 322, fixing piece 330;
[0028] Lifting frame 400, first structural member 410, first wall 411, first connecting hole 4111, second wall 412, third wall 413, second connecting hole 4131, reinforcing rib 420, second structural member 430. DETAILED DESCRIPTION
[0029] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only, and are used only for explaining the present application, and cannot be understood as a limitation of the present application.
[0030] In the description of the present application, it should be understood that the orientation description, such as the left, right, etc. The orientation or positional relationship shown in the drawing is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.
[0031] In the description of the present application, if the first, second, etc. are described for the purpose of distinguishing technical features, it cannot be understood as indicating or implying the relative importance of the technical features or implicitly indicating the number of technical features indicated or the order of the technical features indicated.
[0032] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.
[0033] Referring to Figure 3 , Figure 4 The lifting device provided in the embodiments of the present application is used for lifting the offshore wind power dry-type transformer 100, and the lifting device is used for assembling on the protective shell 200 of the offshore wind power dry-type transformer 100.
[0034] As shown in the figure, the lifting tool includes a lifting lug 300 and a lifting bracket 400, the lifting lug 300 is used to be arranged outside the top plate 210 of the protective shell 200, and the lifting bracket 400 is used to be arranged inside the top plate 210 of the protective shell 200. When the lifting bracket 400 and the lifting lug 300 are installed on the protective shell 200, the lifting lug 300 and the lifting bracket 400 are fixedly connected through a fixing member 330 such as a bolt, a screw rod or the like, the lifting bracket 400 is provided with a connecting portion, and the connecting portion is connected with the upper clamping member 120 of the offshore wind power dry-type transformer 100 through a connecting member 130, so that the upper part of the offshore wind power dry-type transformer 100 is lifted through the lifting tool. Therefore, when the offshore wind power dry-type transformer 100 is lifted, the cable is only connected with the lifting lug 300 and the hook of the lifting equipment, and then the lifting operation can be performed, without the need to open the protective shell 200 of the transformer, so as to avoid the high-humidity and high-salt-mist air from entering the transformer chamber, the operator also does not need to perform high-altitude operation, the safety of the operator can be ensured, there is no special requirement for the lifting tool, and the on-site operation is convenient.
[0035] Referring to Figures 1 to 4 In some embodiments, the lifting bracket 400 includes two first structural members 410 extending along the length direction of the protective shell 200 and two second structural members 430 extending along the width direction of the protective shell 200, the two first structural members 410 are oppositely arranged, and the second structural members 430 are fixedly connected with the two first structural members 410 respectively through welding or the like. The two first structural members 410 are connected with the lifting lug 300 near one side of the protective shell 200, and the two first structural members 410 are connected with the upper clamping member 120 of the transformer away from the other side of the protective shell 200.
[0036] Referring to Figure 1 In some embodiments, the first structural member 410 includes a first wall 411, a second wall 412 and a third wall 413 arranged in sequence, the first wall 411 and the third wall 413 are oppositely arranged, and the two sides of the second wall 412 are connected with the first wall 411 and the third wall 413 respectively, in other words, the first structural member 410 is in a U shape. The first connecting hole 4111 is arranged at both ends of the first wall 411, and the connecting portion is arranged on the third wall 413.
[0037] Referring to Figure 1 In some embodiments, the connecting portion is configured as a second connecting hole 4131, and the second connecting hole 4131 is used for the connecting member 130 to pass through. Correspondingly, referring to Figure 5 The third connecting hole 121 is arranged on the upper clamping member 120 of the transformer, and the lifting bracket 400 and the upper clamping member 120 of the transformer are fixedly connected through the connecting member 130 such as a screw rod passing through the second connecting hole 4131 and the third connecting hole 121.
[0038] Referring to Figure 1In some embodiments, a plurality of reinforcing ribs 420 are arranged between the first wall 411 and the third wall 413, and the reinforcing ribs 420 are connected with the first wall 411, the second wall 412 and the third wall 413 respectively. By arranging the reinforcing ribs 420, the strength of the U-shaped first structural member 410 is improved, the strength of the hanger 400 is improved, and the strength of the lifting device is improved.
[0039] The hanger 400 with the above structure can be batch-produced, and the second structural member 430 with different lengths and the screw rod with different heights can be assembled according to the needs of different transformer models, so as to adapt to different types of transformers.
[0040] It can be understood that the second structural member 430 can also be provided with one or more, which is not limited herein.
[0041] Referring to Figure 2 In some embodiments, the lifting lug 300 includes a connecting plate 310 and a hanging member 320, the hanging member 320 is arranged on the connecting plate 310, the hanging member 320 is adapted to be connected with a hanging part of a hoisting device, and a lifting hole 321 or a lifting hook can be arranged on the hanging member 320. The connecting plate 310 is used to be connected with the top plate 210 of the protective shell 200, the connecting plate 310 is provided with a mounting hole 311, and a through hole is arranged on the top plate 210 of the protective shell 200 in correspondence, the mounting hole 311 is opposite to the corresponding first connecting hole 4111 through the through hole, and the lifting lug 300 is fixedly connected with the first structural member 410 through a fixing member 330 such as a bolt or a screw rod arranged in the mounting hole 311 and the first connecting hole 4111.
[0042] It can be understood that, in order to avoid high-humidity and high-salt-mist air from entering the protective shell 200 through the through hole of the mounting part of the lifting lug 300 and the protective shell 200, a mounting groove 312 is arranged on the connecting plate 310 close to the protective shell 200, the mounting groove 312 is arranged around the circumference of the mounting hole 311, a sealing ring is arranged in the mounting groove 312 when the lifting lug 300 and the hanger 400 are assembled, and then the lifting lug 300 and the hanger 400 are fixedly connected through the bolt, so that the sealing ring can block the joint between the lifting lug 300 and the top plate 210, and the high-humidity and high-salt-mist air can be prevented from entering the interior of the protective shell 200 through the joint.
[0043] Male 2, in some embodiments, the hanging member 320 is provided with a lifting hole 321, the lifting hole 321 penetrates through the hanging member 320, and the lifting hole 321 is provided with a chamfer 322, which can facilitate the cable of the hoisting device to penetrate into the lifting hole 321.
[0044] Referring to Figure 3In some embodiments, four lifting ears 300 are provided, and the four lifting ears 300 are arranged in a square. The four lifting ears 300 are respectively located at the four corners of the square. The connection angle between the hanging piece 320 and the connecting plate 310 on each lifting ear 300 is different from the connection angles of the other three lifting ears 300, so that the lifting hole 321 is directed along the radial extension line of the surface of the top plate 210 of the protective shell 200 toward the center of the square figure formed by the four lifting ears 300, thereby reducing the wear between the cable of the lifting equipment and the hanging piece 320 and avoiding the generation of iron filings.
[0045] It is understandable that three or more lifting ears 300 may be provided, which will not be described in detail here.
[0046] Reference Figure 3 、 Figure 4 The offshore wind power dry-type transformer 100 proposed in the embodiment of the present invention includes a protective shell 200. The offshore wind power dry-type transformer 100 is arranged in the protective shell 200. A high-voltage upper clamp 120 and a low-voltage upper clamp 120 are provided on the silicon steel sheet 110 of the transformer. The high-voltage upper clamp 120 and the low-voltage upper clamp 120 are both fixedly connected to the silicon steel sheet 110. The protective shell 200 is provided with a lifting device for lifting the offshore wind power dry-type transformer 100. The lifting device for lifting the offshore wind power dry-type transformer 100 adopts the lifting device described in any of the above embodiments. The lifting ear 300 of the lifting device is arranged on the outside of the top plate 210 of the protective shell 200. The frame 400 is arranged on the inner side of the top plate 210 of the protective shell 200, and the lifting ear 300 is connected to the hanger 400 by bolts, screws and other fixing parts 330. The hanger 400 is fixedly connected to the high-voltage upper clamp 120 and the low-voltage upper clamp 120 by screws and other fixing parts 330. When lifting the offshore wind power dry-type transformer 100, it is only necessary to connect the cable to the lifting ear 300 and the hook of the lifting equipment to carry out the lifting operation. There is no need to open the protective shell 200 of the transformer, to prevent high humidity and high salt mist gas from entering the transformer room, and the operators do not need to work at high altitude, which can ensure the safety of the operators. There are no special requirements for the lifting equipment, which is convenient for on-site operations.
[0047] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0048] Of course, the present invention is not limited to the above-mentioned embodiments. Those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.
Claims
1. A sling for hoisting a dry-type transformer for offshore wind power, for fitting on a protective housing of a dry-type transformer for offshore wind power, characterized in that, The lifting device comprises: a lifting lug arranged outside a top plate of the protective shell; a lifting bracket arranged inside the top plate of the protective shell and adapted to be fixedly connected with the lifting lug, the lifting bracket being provided with a connecting portion for being connected with an upper clamping piece of the offshore wind power dry-type transformer through a connecting piece.
2. The spreader for hoisting a dry-type transformer of an offshore wind power plant according to claim 1, characterized in that, The lifting bracket comprises two first structural members extending along a length direction of the protective shell and at least one second structural member extending along a width direction of the protective shell, the two first structural members being oppositely arranged, and the second structural member being fixedly connected with the two first structural members respectively.
3. A spreader for hoisting a dry-type transformer for offshore wind power, according to claim 2, characterised in that, The first structural member comprises a first wall, a second wall and a third wall arranged in sequence, the first wall and the third wall being oppositely arranged, the second wall being connected with the first wall and the third wall respectively at two sides thereof, the first wall being provided with a first connecting hole at two ends thereof, and the connecting portion being arranged on the third wall.
4. The spreader for hoisting a dry-type transformer of an offshore wind power plant according to claim 3, characterized in that, The connecting portion is configured as a second connecting hole for being penetrated by the connecting piece.
5. The spreader for hoisting a dry-type transformer of an offshore wind power plant according to claim 3, characterized in that, A reinforcing rib is arranged between the first wall and the third wall, and the reinforcing rib is connected with the first wall, the second wall and the third wall respectively.
6. The spreader for hoisting a dry-type transformer of an offshore wind power plant according to claim 3, characterized in that, The lifting lug comprises a connecting plate and a lifting hook, the lifting hook being arranged on the connecting plate and adapted to be connected with a lifting hook portion of a lifting device, the connecting plate being provided with a mounting hole opposite to the corresponding first connecting hole, and the lifting lug being fixedly connected with the first structural member through a fixing piece penetrating the mounting hole and the first connecting hole.
7. A spreader for hoisting a dry-type transformer for offshore wind power, according to claim 6, characterised in that, The connecting plate close to one side of the protective shell is provided with a mounting groove arranged around a circumferential direction of the mounting hole, and the mounting groove is used for accommodating a sealing ring.
8. The spreader for hoisting a dry-type transformer of an offshore wind power plant according to claim 6, characterized in that, The lifting hook is provided with a lifting hole penetrating the lifting hook, and the lifting hole is provided with a chamfer.
9. The spreader for hoisting a dry-type transformer of an offshore wind power plant according to claim 6, characterized in that, The lifting lug is provided with at least three lifting lugs, and the at least three lifting lugs extend along radial extension lines of a top plate surface of the protective shell towards a center of a planar pattern formed by the at least three lifting lugs.
10. A marine wind power dry-type transformer, characterized in that The lifting device comprises the lifting device for lifting the offshore wind power dry-type transformer according to any one of claims 1 to 9.