Fan tower drum protection device

Abstract

The utility model discloses a protective device for a fan tower drum. The protective device comprises a water swelling rubber strip, a waterproof rubber pad and a fastener, the water swelling rubber strip wraps the outer side wall of the bottom of the fan tower and the outer side edge of the concrete foundation, the waterproof rubber pad is arranged on the periphery of the water swelling rubber strip and the upper side face of the concrete foundation, and the fastener is used for fastening the waterproof rubber pad. The outer side wall of the bottom of the fan tower and the outer side edge of the concrete foundation are wrapped with the waterproof rubber pads, water stopping, fastening and other measures are taken, and an absolute closed area from the bottom of the fan tower to the side face of the concrete foundation is constructed, so that invasion of external moisture is effectively avoided, and the service life of the fan tower is prolonged. Therefore, the erosion effect of various concrete or steel products taking water as a reaction substance or solvent is weakened or eliminated.

Description

Technical Field

[0001] The utility model relates to the technical field of wind turbine protection, in particular to a wind turbine tower protection device. Background Art

[0002] A considerable proportion of wind power generation foundation structures are extended concrete foundations. When the wind turbine runs at high speed, a large overturning moment is generated. The extended foundation uses the gravity of large area and large volume of concrete to resist the overturning moment. In terms of force, ordinary C30 concrete can serve under this condition, but the wind turbine tower (including the lower flange) will produce a large fatigue load, and concrete is a typical brittle material and is more sensitive to fatigue loads.

[0003] In actual production, concrete structure damage is very likely to occur around the tower and at the lower flange. The concrete around the tower may even become "loose" and the lower flange may become "hollow". This phenomenon is more common in the foundation of ring-type wind turbines. When the concrete structure deteriorates under fatigue load, the flexible waterproofing between the original tower waterproofing and the rigid concrete is often squeezed out and destroyed first. External moisture will enter the tower foundation through the damaged concrete, accelerating the corrosion of the reinforced concrete structure. As the lower flange of the tower is the main load-bearing structure, the problem of water corrosion on the flange is particularly acute. In several wind turbine foundation reinforcement projects, the concrete at the lower flange is "eroded" by fatigue loads, forming a large "cavity", which is filled with a large amount of water, resulting in the coupling of fatigue loads and water erosion, accelerating the quality degradation of the wind turbine foundation structure. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a wind turbine tower protection device.

[0005] The utility model solves the technical problem by adopting a technical solution: constructing a wind turbine tower protection device, including a water-expandable rubber strip, a waterproof rubber pad and a fastener;

[0006] The water-swellable rubber strip is wrapped around the outer wall of the bottom of the wind turbine tower and the outer edge of the concrete foundation, the waterproof rubber pad is arranged on the outer periphery of the water-swellable rubber strip and the upper side of the concrete foundation, and the fastener is used to fasten the waterproof rubber pad.

[0007] In some embodiments, the first end of the closed part of the waterproof rubber pad has a first splicing portion, and the second end of the closed part of the waterproof rubber pad has a second splicing portion. The side of the first splicing portion is provided with a plurality of protrusions, and the side of the second splicing portion facing the protrusion is provided with a plurality of grooves that cooperate with the protrusions.

[0008] In some embodiments, the protrusion is a dovetail boss and the recess is a dovetail groove.

[0009] In some embodiments, the protrusion is a frustum, and the concave groove is a conical groove.

[0010] In some embodiments, the number of the protrusions is the same as the number of the grooves.

[0011] In some embodiments, the waterproof rubber pad is a flexible radiation-resistant rubber pad.

[0012] In some embodiments, the waterproof rubber pad is an integrated structure.

[0013] In some embodiments, the fastener is plural.

[0014] In some embodiments, the fastener comprises a stainless steel ferrule.

[0015] In some embodiments, the thickness of the waterproof rubber pad is greater than the thickness of the water-swellable rubber strip.

[0016] The implementation of the utility model has the following beneficial effects: the wind turbine tower protection device includes a water-expandable rubber strip, a waterproof rubber pad and a fastener; the water-expandable rubber strip is wrapped around the outer wall of the bottom of the wind turbine tower and the outer side of the concrete foundation, the waterproof rubber pad is arranged on the outer periphery of the water-expandable rubber strip and the upper side of the concrete foundation, and the fastener is used to fasten the waterproof rubber pad. By wrapping the waterproof rubber pad (flexible radiation-resistant rubber pad) around the outer wall of the bottom of the wind turbine tower and the outer side of the concrete foundation, and supplemented by water-stopping, fastening and other measures, an absolutely closed area from the bottom of the wind turbine tower to the side of the concrete foundation is constructed, which effectively avoids the intrusion of external moisture, thereby weakening or eliminating the erosion of various concrete or steel materials using water as a reaction substance or solvent. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the utility model, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the following drawings only show certain embodiments of the utility model, and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work. In the drawings:

[0018] Figure 1 It is a structural schematic diagram of the application of the wind turbine tower protection device in some embodiments of the utility model;

[0019] Figure 2 It is a schematic diagram of the structural details of the wind turbine tower protection device in some embodiments of the utility model;

[0020] Figure 3 It is a schematic diagram of the unfolded structure of the waterproof rubber pad in some embodiments of the utility model;

[0021] Figure 4 It is a structural schematic diagram of the assembly of waterproof rubber pads in some embodiments of the utility model. DETAILED DESCRIPTION

[0022] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation methods of the present invention are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "up", "down", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inside", "outside", "head", "tail", etc. are based on the directions or positional relationships shown in the accompanying drawings, are constructed and operated in a specific direction, and are only for the convenience of describing the present technical solution, rather than indicating that the device or element referred to must have a specific direction, and therefore cannot be understood as a limitation to the present invention.

[0023] It should also be noted that, unless otherwise clearly specified and limited, the terms such as "installed", "connected", "connected", "fixed", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. When an element is referred to as being "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there may be one or more intermediate elements. The terms "first", "second", "third", etc. are only for the convenience of describing the present technical solution, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third", etc. can explicitly or implicitly include one or more of the features. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0024] In the following description, specific details such as specific system structures and technologies are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present invention. However, it should be clear to those skilled in the art that the present invention can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details that hinder the description of the present invention.

[0025] See also Figures 1 to 4 The utility model shows a wind turbine tower protection device, which includes a water-swellable rubber strip 10, a waterproof rubber pad 20 and a fastener 30.

[0026] The water-swellable rubber strip 10 is wrapped around the outer side wall of the bottom of the wind turbine tower 100 and the outer side of the concrete foundation 200. The waterproof rubber pad 20 is arranged on the outer periphery of the water-swellable rubber strip 10 and the upper side of the concrete foundation 200. The fastener 30 is used to fasten the waterproof rubber pad 20. The "outer side of the concrete foundation 200" here includes the circumferential outer side of the concrete foundation 200 and the upper surface of the concrete foundation 200, see Figure 2 .

[0027] The water swelling strip 10 is a general term for water swelling putty strips and water swelling rubber strips having water swelling performance. The water swelling strip 10 can expand in volume when encountering water, and is a rubber strip that seals leaks and is also called a water swelling sealing strip.

[0028] Specifically, the water-swellable rubber strip 10 expands and deforms 2-3 times after coming into contact with water, and fills all irregular surfaces, holes and gaps in the joints, while generating huge contact pressure to completely prevent leakage. When the concrete gap is displaced, causing the gap to exceed the elastic range of the material, the ordinary rubber waterproof material loses its waterproof effect. The water-swellable rubber strip 10 can also stop water by absorbing water and swelling. Using the water-swellable rubber strip 10 as a leak-proof sealing waterproof material not only saves on usage, but also eliminates the characteristic of elastic fatigue caused by excessive compression of general elastic materials, making the waterproof effect more reliable.

[0029] Combination Figure 3 and Figure 4 As shown, the waterproof rubber pad 20 is roughly fan-shaped in the unfolded state, and the first end of the closed part of the waterproof rubber pad 20 has a first splicing portion 21, and the second end of the closed part of the waterproof rubber pad 20 has a second splicing portion 22. The side of the first splicing portion 21 is provided with a plurality of protrusions 211, and the side of the second splicing portion 22 facing the protrusion 211 is provided with a plurality of grooves 221 that cooperate with the protrusion 211.

[0030] Preferably, the protrusion 211 is a dovetail boss, and the groove 221 is a dovetail groove.

[0031] Preferably, the protrusion 211 is a frustum, and the groove 221 is a conical groove.

[0032] Preferably, the number of the protrusions 211 is the same as the number of the grooves 221 .

[0033] Of course, the convex portion 211 and the concave portion 221 may also adopt other structural forms, and the number and position of the convex portion 211 and the concave portion 221 may be adjusted according to actual needs, which are not specifically limited here.

[0034] It can be understood that the waterproof rubber pad 20 is divided into an upper convex structure and a lower concave structure at the closed part. The convex structure is small at the top and large at the bottom, and the concave structure corresponds to it. When installed, the convex and concave structures bite and close to form a completely waterproof structure.

[0035] In some embodiments, the waterproof rubber pad 20 is a flexible radiation-resistant rubber pad. The waterproof structure made of the flexible radiation-resistant rubber pad can well adapt to the harsh environment of solar radiation, mechanical vibration, etc. under the service condition of the wind turbine, effectively avoiding the occurrence of extrusion failure of the waterproof structure of the conventional tower and rigid concrete interface, thereby effectively reducing the corrosion rate of the reinforced concrete structure and the wind turbine flange.

[0036] In some embodiments, the waterproof rubber pad 20 is an integrated structure.

[0037] In some embodiments, the number of the fasteners 30 is plural.

[0038] In some embodiments, the fastener 30 includes a stainless steel fastener, such as a 316 stainless steel fastener. Of course, the fastener 30 can also be a locking buckle, a fastening steel bar rope, etc.

[0039] In some embodiments, the thickness of the waterproof rubber pad 20 is greater than the thickness of the water-swellable rubber strip 10 .

[0040] It can be understood that by wrapping a waterproof rubber pad 20 (flexible radiation-resistant rubber pad) around the outer wall of the bottom of the wind turbine tower 100 and the outer edge of the concrete foundation 200, and using measures such as water stopping and fastening, an absolutely closed area is constructed from the bottom of the wind turbine tower 100 to the side of the concrete foundation 200, thereby effectively avoiding the intrusion of external moisture, thereby weakening or eliminating the corrosive effects of various concretes or steel materials that use water as a reactive substance or solvent.

[0041] By adopting a design that completely isolates the external environment, the temperature gradient of the concrete structure caused by changes in ambient temperature can be reduced to a certain extent, reducing the risk of cracking; at the same time, the risk of concrete carbonization is eliminated, and the process of anti-carbonization construction on the surface of the fan foundation is reduced, thereby reducing maintenance costs.

[0042] By adopting a flexible rubber waterproof structure (water-expandable rubber strip 10 and waterproof rubber pad 20), even if the wind turbine tower is tilted and the concrete around the wind turbine tower is damaged, the entire waterproof system is still effective, avoiding the situation where conventional waterproof measures become ineffective due to structural damage.

[0043] It can be understood that the above embodiments only express the preferred implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the patent scope of the utility model. It should be pointed out that, for ordinary technicians in this field, without departing from the concept of the utility model, the above-mentioned technical features can be freely combined, and several deformations and improvements can be made, which all belong to the protection scope of the utility model. Therefore, all equivalent changes and modifications made to the scope of the claims of the utility model should fall within the scope of the claims of the utility model.

Claims

1. A wind turbine tower protection device, characterized in that: It comprises a water-swellable rubber strip (10), a waterproof rubber pad (20) and a fastener (30); The water-swellable rubber strip (10) is wrapped around the outer side wall of the bottom of the wind turbine tower (100) and the outer side of the concrete foundation (200), the waterproof rubber pad (20) is arranged on the outer periphery of the water-swellable rubber strip (10) and the upper side of the concrete foundation (200), and the fastener (30) is used to fasten the waterproof rubber pad (20).

2. The wind turbine tower protection device according to claim 1, characterized in that: The first end of the closed part of the waterproof rubber pad (20) has a first splicing portion (21), and the second end of the closed part of the waterproof rubber pad (20) has a second splicing portion (22). The side surface of the first splicing portion (21) is provided with a plurality of convex portions (211), and the side surface of the second splicing portion (22) facing the convex portion (211) is provided with a plurality of grooves (221) that cooperate with the convex portion (211).

3. The wind turbine tower protection device according to claim 2, characterized in that: The convex portion (211) is a dovetail boss, and the concave portion (221) is a dovetail groove.

4. The wind turbine tower protection device according to claim 2, characterized in that: The convex portion (211) is a frustum, and the concave portion (221) is a conical groove.

5. The wind turbine tower protection device according to claim 2, characterized in that: The number of the protrusions (211) is the same as the number of the recesses (221).

6. The wind turbine tower protection device according to claim 1, characterized in that: The waterproof rubber pad (20) is a flexible radiation-resistant rubber pad.

7. The wind turbine tower protection device according to claim 1, characterized in that: The waterproof rubber pad (20) is an integrated structure.

8. The wind turbine tower protection device according to claim 1, characterized in that: The fasteners (30) are multiple.

9. The wind turbine tower protection device according to claim 1, characterized in that: The fastener (30) comprises a stainless steel fastener.

10. The wind turbine tower protection device according to claim 1, characterized in that: The thickness of the waterproof rubber pad (20) is greater than the thickness of the water-swellable rubber strip (10).

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