Sealing structure between wind power concrete tower tube segments

Abstract

The utility model provides a wind power concrete tower tube segment sealing structure which comprises a sealing strip, the sealing strip is close to the outer surface of a concrete tower tube segment, an engineering structural adhesive is located on a splicing face and located on the inner side of the sealing strip, and the sealing strip can prevent the engineering structural adhesive from overflowing towards the outer surface of the concrete tower tube segment. The sealing strip close to the outer surface of the concrete tower tube section is arranged, the engineering structural adhesive is arranged between the sealing strip and the inner surface of the concrete tower tube section, water seepage from the outer surface of the concrete tower tube section to the inner side is prevented, and the sealing strip located on the outer side and the engineering structural adhesive located on the inner side jointly play a sealing role. Structural engineering glue is prevented from overflowing to the outer surface of the concrete tower barrel section; meanwhile, the sealing strips can intercept external seepage water and prevent the seepage water from diffusing to the structural engineering glue.

Description

Technical Field

[0001] The utility model relates to the technical field of water conservancy and hydropower engineering, in particular to a sealing structure between segments of a wind power concrete tower barrel. Background Art

[0002] In recent years, the new energy industry, especially the wind power industry, has witnessed a blowout development. With the progress of technology, a precast assembled concrete tower barrel with dry connection without grouting has emerged. Different from traditional steel towers, it uses precast concrete segments as the basic components of the tower barrel. To ensure the compactness of the joints between segments, engineering structural adhesives are generally used for filling during construction. Due to the existence of installation errors and differences in the gluing level of workers, when the segments are assembled, the engineering structural adhesive is extruded and forms a sag on the outer surface of the tower barrel. On the one hand, these overflowing engineering structural adhesives seriously affect the appearance quality of the tower barrel. On the other hand, when exposed to the open air environment for a long time, they will weather and fail and peel off the barrel wall, making it easier for the interior to be eroded and weathered and fall off. In addition, gaps penetrating the wall thickness direction of the tower barrel are likely to appear in some areas at the joints between segments. In rainy weather, water seepage will occur, posing a risk of causing short circuits of electrical equipment at the tower bottom and corrosion of accessories inside the tower barrel. Therefore, it is particularly necessary to propose an effective joint sealing measure in the field of wind power concrete tower barrels. Content of the Utility Model

[0003] The purpose of the utility model is to overcome the above-mentioned deficiencies of the prior art and provide a sealing structure between segments of a wind power concrete tower barrel, which can solve the problems that when the concrete tower barrel segments are spliced, the engineering structural adhesive overflows to the outer surface of the tower barrel to form a sag, affecting the appearance and quality of the tower barrel, and water seepage is likely to occur at the splicing part, resulting in water ingress into the equipment inside the tower barrel and corrosion of accessories. (Improve)

[0004] To this end, the utility model adopts the following technical solutions:

[0005] A sealing structure between segments of a wind power concrete tower barrel, wherein the concrete tower barrel section is composed of a plurality of concrete tower barrel segments spliced circumferentially. An engineering structural adhesive is provided between the splicing surfaces of adjacent concrete tower barrel segments. It is characterized in that: the sealing structure further includes a sealing strip, the sealing strip is close to the outer surface of the concrete tower barrel segment, the engineering structural adhesive is located inside the sealing strip on the splicing surface, the sealing strip can prevent the engineering structural adhesive from overflowing to the outer surface of the concrete tower barrel segment, and prevent water from seeping inwards from the outer surface of the concrete tower barrel segment. The sealing strip on the outer side and the engineering structural adhesive on the inner side jointly bear the sealing function.

[0006] On the basis of adopting the above technical solutions, the utility model can further adopt the following technical solutions, or use a combination of these further technical solutions:

[0007] One circumferential side of the concrete tower barrel segment is provided with a first groove, and one vertical side of the concrete tower barrel segment is provided with a second groove. Both the first groove and the second groove are close to the outer surface of the concrete tower barrel segment. The first grooves of the concrete tower barrel segments of the same layer form an annular groove, and sealing strips are arranged in both the annular groove and the second groove.

[0008] The sealing strip includes an inner structure and an outer structure. The inner structure is provided with multiple water-blocking structures. The outer structure includes a concave structure and a convex structure. Multiple compressible cavities extending along the length direction of the sealing strip are also arranged in the sealing strip.

[0009] Among the two adjacent splicing surfaces of adjacent segments, one splicing surface of the concrete tower barrel segment is provided with the first groove or the second groove, and the splicing surface of the other concrete tower barrel segment is a smooth splicing surface. Engineering structural glue is applied between the two adjacent splicing surfaces of the adjacent concrete tower barrel segments.

[0010] The inner structure includes upper and lower layers of extrusion strips arranged along the length direction thereof. The edge of the extrusion strip has a tip. The width of the first extrusion strip located on the upper side is greater than that of the second extrusion strip located on the lower side. The first extrusion strip and the second extrusion strip are both distributed on both sides of the sealing strip. The convex structure faces the radial outside of the concrete tower barrel section, and the concave structure faces the radial inside of the concrete tower barrel section. The first extrusion strip and the second extrusion strip are both in an extrusion state in the first groove or in the second groove. The first extrusion strip and the second extrusion strip respectively form multiple water-blocking structures on the side walls of both sides.

[0011] The compressible cavity includes a first cavity located between the first extrusion strip and the second extrusion strip and a second cavity located above the first extrusion strip. The second cavity is located between the convex structure and the concave structure, and the arc surface directions of the second cavity are respectively consistent with the convex structure and the concave structure.

[0012] The surfaces of the sealing strip in contact with the bottom surface of the first groove and the surfaces of the sealing strip in contact with the bottom surface of the second groove are rectangular surfaces. The surface of the sealing strip in contact with the smooth splicing surface of the concrete tower barrel segment is the convex structure. The tips of the first extrusion strip and the second extrusion strip are in extrusion contact with the side surface of the first groove or in extrusion contact with the side surface of the second groove. The height of the sealing strip in the free state is greater than the thickness of the engineering structural glue.

[0013] Several concrete tower barrel segments of the same layer are circumferentially spliced to form vertical joints, and the vertical joints of the concrete tower barrel sections of adjacent two layers are arranged in a staggered manner.

[0014] The cross-sections of the first groove and the second groove are both trapezoidal cross-sections with a wide opening and a narrow bottom, and the side with the larger opening of the trapezoidal cross-section faces outward.

[0015] The sealing strip is a flexible rubber strip.

[0016] Compared with the prior art, the utility model has the following advantages and beneficial effects: The utility model is provided with a sealing strip close to the outer surface of the concrete tower barrel section, so that the structural engineering glue only exists between the sealing strip and the inner surface of the concrete tower barrel section, avoiding the overflow of the structural engineering glue to the outer surface of the concrete tower barrel section; at the same time, the sealing strip can intercept external seepage water and prevent the seepage water from spreading to the structural engineering glue. Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of the concrete tower barrel segment of the utility model;

[0018] Figure 2 It is a schematic structural diagram of the concrete tower barrel section of the utility model;

[0019] Figure 3 It is a schematic diagram of the circumferential splicing of the concrete tower barrel segments of the utility model;

[0020] Figure 4 is Figure 3 the enlarged view of part A in

[0021] Figure 5 It is a schematic diagram of the vertical splicing of the concrete tower barrel sections of the utility model;

[0022] Figure 6 It is a schematic diagram of the distribution of the vertical joints of the utility model;

[0023] Figure 7 It is a schematic cross-sectional view of the sealing strip of the utility model;

[0024] Figures 8 - 12 It is a schematic cross-sectional view of the vertical splicing of the concrete tower barrel sections of the utility model;

[0025] Figure 13 is Figure 12 the partial enlarged view of Detailed Embodiment

[0026] To enable those skilled in the art to better understand the technical solution of the present utility model, the preferred implementation schemes of the present utility model will be described below in conjunction with specific embodiments. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar functional elements throughout. However, it should be understood that the drawings are only for illustrative purposes and cannot be construed as a limitation on the present utility model; in order to better illustrate this embodiment, some components in the drawings will be omitted, enlarged or reduced, which do not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted. The positional relationships described in the drawings are only for illustrative purposes and cannot be construed as a limitation on the present utility model.

[0027] The present utility model will be further described below in conjunction with the drawings and embodiments, but it shall not be used as a basis for limiting the present utility model.

[0028] The concrete tower barrel segment 1 includes an outer surface, an inner surface, two circumferential sides and two vertical sides. Refer to the drawings. A sealing structure between concrete tower barrel segments of a wind power concrete tower barrel provided by the present utility model, wherein the concrete tower barrel section 10 is formed by circumferentially splicing a plurality of concrete tower barrel segments 1. An engineering structural adhesive 8 is provided between the splicing surfaces of adjacent concrete tower barrel segments 1. The sealing structure further includes a sealing strip 7. The sealing strip 7 is close to the outer surface of the concrete tower barrel segment 1. The engineering structural adhesive 8 is located inside the sealing strip 7 on the splicing surface. The sealing strip 7 can prevent the engineering structural adhesive 8 from overflowing to the outer surface of the concrete tower barrel segment 1 and prevent water from seeping from the outer surface of the concrete tower barrel segment 1 to the inside. The sealing strip 7 located on the outside and the engineering structural adhesive 8 located on the inside jointly undertake the sealing function.

[0029] A first groove 3 is provided on one of the circumferential sides of the concrete tower barrel segment 1, and a second groove 4 is provided on one of the vertical sides of the concrete tower barrel segment 1. Both the first groove 3 and the second groove 4 are close to the outer surface of the concrete tower barrel segment 1. The first grooves 3 of the same layer of the concrete tower barrel section 10 form an annular groove, and the sealing strip 7 is arranged in both the annular groove and the second groove 4.

[0030] The sealing strip 7 includes an inner structure and an outer structure. The inner structure is provided with a plurality of water-blocking structures. The outer structure includes a concave structure 74 and a convex structure 73. A plurality of compressible cavities 6 extending along the length direction of the sealing strip 7 are also arranged in the sealing strip 7.

[0031] Among the two adjacent splicing surfaces of the adjacent segment 1, one splicing surface of the concrete tower barrel segment 1 is provided with the first groove 3 or the second groove 4, and the other splicing surface of the concrete tower barrel segment 1 is a smooth splicing surface. The engineering structural adhesive 8 is applied between the two adjacent splicing surfaces of the adjacent concrete tower barrel segments 1.

[0032] The inner structure includes two upper and lower extrusion strips arranged along its length direction. The edge of the extrusion strip has a tip. The width of the first extrusion strip 71 on the upper side is greater than that of the second extrusion strip 72 on the lower side. The first extrusion strip 71 and the second extrusion strip 72 are both distributed on both sides of the sealing strip 7. The convex surface structure 73 faces the radial outside of the concrete tower barrel section 10, and the concave surface structure 74 faces the radial inside of the concrete tower barrel section 10. The first extrusion strip 71 and the second extrusion strip 72 are both in an extrusion state in the first groove 3 or in the second groove 4. The first extrusion strip 71 and the second extrusion strip 72 respectively form multiple water-blocking structures on the two side groove walls, which can prevent the liquid from the outside from infiltrating in layer by layer, so that the sealing strip 7 achieves a better sealing and moisture-proof effect. The orientations of the convex surface structure 73 and the concave surface structure 74 can determine the compression direction of the sealing strip 7, ensure that the sealing strip 7 compresses towards the engineering structural adhesive 8, prevent the engineering structural adhesive 8 from overflowing, and play a role in protecting and moisture-proofing the engineering structural adhesive 8.

[0033] The compressible cavity 6 includes a first cavity 61 located between the first extrusion strip 71 and the second extrusion strip 72 and a second cavity 62 located above the first extrusion strip. The second cavity 62 is located between the convex surface structure 73 and the concave surface structure 74, and the arc surface directions of the second cavity 62 are respectively consistent with the convex surface structure 73 and the concave surface structure 74. The compressible cavity 6 can enable the sealing strip 7 to have a larger outer contour size when the cross-sectional area is certain, and at the same time enable the sealing strip 7 to have a larger deformation margin, so as to ensure that when the sealing strip 7 is in a compressed state, the contact area between the sealing strip 7 and the first groove 3 or the second groove 4 is increased, thereby increasing the friction force between the sealing strip 7 and the first groove 3 and the second groove 4, and achieving a better sealing effect.

[0034] The surfaces of the sealing strip 7 that contact the bottom surfaces of the first groove 3 and the second groove 4 are rectangular surfaces, and the surface of the sealing strip 7 that contacts the smooth splicing surface of the concrete tower barrel segment 1 is the convex surface structure 73. The tips of the first extrusion strip 71 and the second extrusion strip 72 are in extrusion contact with the side surfaces of the first groove 3 or the side surfaces of the second groove 4. The height of the sealing strip 7 in its free state is greater than the thickness of the engineering structural adhesive 8, so as to ensure that during the splicing process of adjacent concrete tower barrel segments 1, the sealing strip 7 contacts the smooth splicing surface of the adjacent concrete tower barrel segments 1 prior to the engineering structural adhesive 8, so that the sealing strip 7 can intercept the overflow of the engineering structural adhesive 8 to the outer surface side of the concrete tower barrel segment 1.

[0035] A plurality of concrete tower barrel segments 1 on the same layer are circumferentially spliced to form a vertical joint 11, and the vertical joints of the adjacent two concrete tower barrel sections 10 are arranged in a staggered manner, so that the structure is more stable.

[0036] The cross-sections of the first groove 3 and the second groove 4 are both trapezoidal cross-sections with a large opening and a narrow bottom. The side with the larger opening of the trapezoidal cross-section faces outward. The trapezoidal cross-sections of the first groove 3 and the second groove 4 facilitate the demoulding operation after the concrete tower barrel segment 1 is poured and facilitate drainage.

[0037] The sealing strip 7 is a flexible rubber strip.

[0038] The construction steps of a sealing structure between wind power concrete tower barrel segments of the present utility model are as follows:

[0039] a. Clean the outer surface of the concrete tower barrel segment 1 and polish the uneven places to be flat;

[0040] b. Insert the sealing strip 7 into the second groove 4 of the concrete tower barrel segment 1;

[0041] c. Splice the concrete tower barrel section 10, circumferentially splice the concrete tower barrel segments 1, apply the engineering structural adhesive 8 on the vertical side surfaces of the concrete tower barrel segments 1. The engineering structural adhesive 8 is located between the sealing strip 7 and the inner surface of the concrete tower barrel segment 1, and there is no engineering structural adhesive 8 between the sealing strip 7 and the outer surface of the concrete tower barrel segment 1. Press the two circumferentially adjacent concrete tower barrel segments 1 tightly into a whole, and repeat the above steps until the cross-section formed after splicing a plurality of concrete tower barrel segments 1 forms a complete circle, constituting the concrete tower barrel section 10;

[0042] d. Insert the sealing strip 7 into the annular groove of the concrete tower barrel section 10 formed by the first groove 3;

[0043] e. Lift the concrete tower section 10 to the assembly location of the concrete tower. When assembling the concrete tower section 10, place it with the annular groove facing upwards. Apply construction structural adhesive 8 on the upper surface of the concrete tower section 10. Similarly, the construction structural adhesive 8 is located between the sealing strip 7 and the inner surface of the concrete tower segment 1, and there is no construction structural adhesive 8 between the outer surface of the sealing strip 7 and the concrete tower segment 1. Press the adjacent upper and lower concrete tower sections 10 tightly into a whole.

[0044] f. Repeat the above steps until the assembly of the entire wind power concrete tower is completed.

[0045] According to the description and drawings of the present utility model, those skilled in the art can easily manufacture or use a sealing structure between the segments of a wind power concrete tower of the present utility model and can achieve the positive effects recorded in the present utility model.

[0046] It should be noted that the terms "comprising" and "having" and any variations thereof in the description, claims, and above-mentioned drawings of the present invention are intended to cover non-exclusive inclusion. The terms "installed", "set", "provided with", "connected", "connected to", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there is internal communication between two mechanisms, components, or parts. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "one end", "the other end", "outer side", "inner side", "horizontal", "end portion", "length", "outer end", "left", "right", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated mechanisms or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention. The terms "first" and "second" are also only used for simplicity in description and do not indicate or imply relative importance.

[0048] In addition, when practicing the claims of the present invention, those skilled in the art can understand and affect the variations of the disclosed embodiments through the study of the drawings, the disclosure, and the appended claims. In addition, in the claims and the description, words such as "comprising" and "containing" do not exclude other elements or steps, and non-plural nouns do not exclude their plural forms.

[0049] The above are only the preferred embodiments of the present utility model, and are not used to limit the scope of implementation of the present utility model. That is, all equivalent changes and modifications made in accordance with the present utility model are covered by the scope of the claims of the present utility model, and no further examples are given here.

Claims

1. A sealing structure between segments of a wind power concrete tower barrel. The concrete tower barrel section (10) is composed of a number of concrete tower barrel segments (1) spliced circumferentially. An engineering structural adhesive (8) is provided between the splicing surfaces of adjacent concrete tower barrel segments (1). It is characterized in that: The sealing structure further includes a sealing strip (7). The sealing strip (7) is close to the outer surface of the concrete tower barrel segment (1). The engineering structural adhesive (8) is located inside the sealing strip (7) on the splicing surface. The sealing strip (7) can prevent the engineering structural adhesive (8) from overflowing to the outer surface of the concrete tower barrel segment (1) and prevent water from seeping inwards from the outer surface of the concrete tower barrel segment (1). The sealing strip (7) on the outer side and the engineering structural adhesive (8) on the inner side jointly undertake the sealing function.

2. The sealing structure between the segments of a wind power concrete tower barrel according to claim 1, characterized in that: One of the circumferential sides of the concrete tower barrel segment (1) is provided with a first groove (3), and one of the vertical sides of the concrete tower barrel segment (1) is provided with a second groove (4). Both the first groove (3) and the second groove (4) are close to the outer surface of the concrete tower barrel segment (1). The first grooves (3) of the same layer of the concrete tower barrel section (10) form an annular groove, and the sealing strip (7) is arranged in both the annular groove and the second groove (4).

3. The sealing structure between segments of a wind power concrete tower barrel according to claim 2, characterized in that: The sealing strip (7) includes an inner structure and an outer structure. The inner structure is provided with multiple water-blocking structures. The outer structure includes a concave structure (74) and a convex structure (73). Multiple compressible cavities (6) extending along its length direction are also arranged in the sealing strip (7).

4. The sealing structure between segments of a wind power concrete tower barrel according to claim 3, characterized in that: Among the two adjacent splicing surfaces of adjacent segments (1), one of the splicing surfaces of the concrete tower barrel segment (1) is provided with the first groove (3) or the second groove (4), and the splicing surface of the other concrete tower barrel segment (1) is a smooth splicing surface. The engineering structural adhesive (8) is applied between the two adjacent splicing surfaces of the adjacent concrete tower barrel segments (1).

5. The sealing structure between the segments of a wind power concrete tower barrel according to claim 4, characterized in that: The inner structure includes upper and lower layers of extrusion strips arranged along its length direction. The edge of the extrusion strip has a tip. The width of the first extrusion strip (71) on the upper side is greater than that of the second extrusion strip (72) on the lower side. The first extrusion strip (71) and the second extrusion strip (72) are both distributed on both sides of the sealing strip (7). The convex structure (73) faces the radial outside of the concrete tower barrel section (10), and the concave structure (74) faces the radial inside of the concrete tower barrel section (10). The first extrusion strip (71) and the second extrusion strip (72) are both in an extruded state in the first groove (3) or in the second groove (4), and the first extrusion strip (71) and the second extrusion strip (72) form multiple water-blocking structures on the two side walls respectively.

6. The sealing structure between the segments of a wind power concrete tower barrel according to claim 5, characterized in that: The compressible cavity (6) includes a first cavity (61) located between the first extrusion strip (71) and the second extrusion strip (72) and a second cavity (62) located above the first extrusion strip. The second cavity (62) is located between the convex structure (73) and the concave structure (74), and the arc surface directions of the second cavity (62) are respectively consistent with the convex structure (73) and the concave structure (74).

7. The sealing structure between segments of a wind power concrete tower barrel according to claim 5, characterized in that: The surfaces of the sealing strip (7) that contact the bottom surfaces of the first groove (3) and the second groove (4) are rectangular surfaces, the surface of the sealing strip (7) that contacts the smooth splicing surface of the concrete tower barrel segment (1) is the convex surface structure (73), the tips of the first extrusion strip (71) and the second extrusion strip (72) are in extrusion contact with the side surfaces of the first groove (3) or the side surfaces of the second groove (4), and the height of the sealing strip (7) in the free state is greater than the thickness of the engineering structural adhesive (8).

8. The sealing structure between the segments of a wind power concrete tower barrel according to claim 1, characterized in that: A plurality of concrete tower barrel segments (1) on the same layer are circumferentially spliced to form vertical joints (11), and the vertical joints of the adjacent two layers of the concrete tower barrel sections (10) are arranged in a staggered manner.

9. The sealing structure between the segments of a wind power concrete tower barrel according to claim 2, characterized in that: The cross-sections of the first groove (3) and the second groove (4) are both trapezoidal cross-sections with a large opening and a narrow bottom, and the side with the larger opening of the trapezoidal cross-section faces outward.

10. A sealing structure between segments of a wind power concrete tower barrel according to claim 1, characterized in that: The sealing strip (7) is a flexible rubber strip.

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