CN217055476U - Concrete tower barrel and cone-straight mixed tower - Google Patents

Abstract

The utility model provides a concrete tower section of thick bamboo and straight mixed tower of awl, include by lower supreme N level segmentation tower section of thick bamboo ring piece of superpose in proper order, adjacent can dismantle the connection between the segmentation tower section of thick bamboo ring piece, wherein, N is for being greater than 1 integer. The utility model discloses a concrete tower section of thick bamboo adopts multistage burst formula tower section of thick bamboo ring piece concatenation to form, and the required area of production burst formula tower section of thick bamboo ring piece is less, and burst formula tower section of thick bamboo ring piece volume is less, and the transportation is comparatively convenient, and the cost of transportation is lower, and hoist and mount are comparatively simple, and the hoist and mount time limit for a project can guarantee; the quality precision is controllable, and the component quality is high: the component is manufactured by adopting a high-precision die and modern numerical control machining equipment to carry out polishing, the dimensional precision of the component and the flatness of a contact surface are further improved, the dimensional deviation of the component is small, and therefore the construction and installation efficiency is improved.

Description

Concrete tower barrel and conical-straight mixed tower

Technical Field

The utility model belongs to the technical field of wind tower pylon, especially, relate to a concrete tower section of thick bamboo and straight mixed tower of awl.

Background

From the perspective of wind resources, the wind speed varies in the horizontal and/or vertical distance in the air, and at high shear, the height increase significantly increases the wind speed, so that the larger the wind shear, the higher the tower height, and the larger the increment of the generated energy. With the continuous development of economy, the method for improving the power generation efficiency is a large fan, a long blade and a high tower drum, and the large fan and the long blade are required to be matched with a fan tower drum with higher and better bearing capacity, so that the high tower drum is required to be taken as a leading factor in the future.

The production and construction of the tower barrel are that the tower barrel manufactured integrally in a factory is transported to a wind power construction site for hoisting operation at present.

From the process perspective, the traditional tower cylinder production and manufacturing has the disadvantages of large whole volume, large occupied area, inconvenient transfer in a factory and serious potential safety hazard to workers in the factory.

SUMMERY OF THE UTILITY MODEL

In order to achieve the above objects and other related objects, the utility model provides a concrete tower section of thick bamboo and straight mixed tower of awl for it is great to solve the whole volume that present tower section of thick bamboo exists for the integrative structure of mill's manufacturing, and area is big, and the transfer is comparatively inconvenient in the factory.

The utility model provides a concrete tower section of thick bamboo, include by lower supreme N branch piece formula tower section of thick bamboo ring piece of superpose in proper order, adjacent can dismantle the connection between the piece formula tower section of thick bamboo ring piece, wherein, N is for being greater than 1 integer.

Optionally, the top of the first-stage segmented tower ring piece, the top and the bottom of the second-to nth-stage segmented tower ring pieces are provided with threaded sleeves; the concrete tower barrel further comprises a stud bolt, and the stud bolt is inserted into the threaded sleeve in the adjacent segmented tower barrel ring piece so as to connect the adjacent segmented tower barrel ring pieces.

Optionally, the nth-stage segmented tower ring segment is formed by splicing two half sub-ring segments, and the 1 st-stage segmented tower ring segment is formed by splicing four quarter sub-ring segments.

Optionally, the concrete tower tube further comprises a fixing piece and a shear key; each sub-ring piece is internally provided with a fixing hole and a notch, and the notch is positioned on one side of the fixing hole, which is far away from the edge of the sub-ring piece, and is communicated with the fixing hole; at least one of the two adjacent sub-ring sheets is provided with a temporary capacity position; before the sub-ring pieces are spliced, the fixing piece is positioned in the temporary containing position, and after the sub-ring pieces are spliced, the fixing piece is inserted into the fixing holes of the two adjacent sub-ring pieces; the shear key is arranged at the joint of the adjacent sub-ring pieces.

Optionally, the bottoms of the second-level to nth-level segmented tower cylinder ring pieces are provided with positioning pins, the tops of the first-level to nth-1-level segmented tower cylinder ring pieces are provided with positioning holes corresponding to the positioning pins, the positioning at the bottom of any one level of segmented tower cylinder ring pieces is from the first level to the nth level, and the widths of the segmented tower cylinder ring pieces at all levels are gradually decreased.

Optionally, a prestressed rib is inserted into each of the segmented tower cylinder ring pieces.

Optionally, the segmented tower ring segments are all concrete ring segments.

The utility model also provides a straight mixed tower of awl, include:

a concrete tower as described in any of the previous claims;

and the steel tower cylinder is positioned at the top of the concrete tower cylinder and is detachably connected with the concrete tower cylinder.

Optionally, the steel tower tube is detachably connected with the nth-stage segmented tower tube ring piece.

As above, the utility model discloses a concrete tower section of thick bamboo and awl are directly mixed and are mixed tower has following beneficial effect:

the utility model discloses a concrete tower section of thick bamboo adopts multistage burst formula tower section of thick bamboo ring piece concatenation to form, and the required area of production burst formula tower section of thick bamboo ring piece is less, and burst formula tower section of thick bamboo ring piece volume is less, and the transportation is comparatively convenient, and the cost of transportation is lower, and hoist and mount are comparatively simple, and the hoist and mount time limit for a project can guarantee; the quality precision is controllable, and the component quality is high: the component is manufactured by adopting a high-precision die and modern numerical control machining equipment to polish, the dimensional precision of the component and the flatness of a contact surface are further improved, the dimensional deviation of the component is small, and therefore the construction and installation efficiency is improved.

The utility model discloses a straight lower part that mixes tower of awl adopts a concrete tower section of thick bamboo, and a steel tower section of thick bamboo is adopted on upper portion, and when so design not only quiet intensity satisfied requirement, there is not the bucking problem nearly, has good damping characteristic moreover, and the energy-absorbing is effectual, and its shock resistance and fatigue resistance can be superior, and no power generation volume loss requires lowly to control system. .

Drawings

Fig. 1 is a front view of a concrete tower drum according to an embodiment of the present invention.

Fig. 2 is a schematic top view of a half sub-ring piece in a concrete tower tube according to an embodiment of the present invention.

Fig. 3 is a schematic longitudinal sectional view of a concrete tower section according to an embodiment of the present invention.

Fig. 4 is a schematic connection diagram of adjacent sub-ring pieces according to an embodiment of the present invention.

Fig. 5 is a front view of a combined conical-straight mixing tower provided in another embodiment of the present invention.

Description of the element reference numerals:

1-concrete tower cylinder, 11-segmented tower cylinder ring, 111-temporary holding part, 112-stud bolt, 113-notch, 114-shear key, 115-positioning pin, 116-positioning hole and 2-steel tower cylinder.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The underlying principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.

It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships that are based on those shown in the drawings, which are merely for convenience in describing the present disclosure and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus the terms are not to be construed as limiting the invention.

At present, domestic wind tower towers are mainly flexible towers and rigid towers, and mainly adopt steel structures and steel-concrete structures. Because the first-order natural frequency of the tower is intersected with the rotating speed frequency of the wind wheel, the flexible tower needs to mainly solve the problem of tower resonance generated at the rotating speed corresponding to the intersection point. And once the rotating speed of the wind wheel actively jumps over the interval near the natural frequency of the tower, the control target of the wind wheel is no longer the optimal capture of wind energy, and a certain amount of power generation loss is brought. The method solves the problem of vortex-induced vibration in the hoisting process of the high tower, and the most adopted method at present is to attach a turbulence strip tool to the upper tower in the hoisting stage to break vortex and stop vibration, or to install a damper tool in the installation stage of the tower or to suppress the vortex-induced vibration before the hoisting stage and the power-on of a unit in a variable-pitch pneumatic damping mode. The main technical challenge of the all-steel flexible tower is that the tower is not only the tower itself, but also the production and transportation processes of the tower are not different from those of the traditional tower, and the traditional steel tower has the problems of too low rigidity, large swing and large potential safety hazard. Therefore, a concrete tower drum used in a high shear environment is needed, and the problems of the traditional tower drum in the design, production and transportation processes are solved. Meanwhile, from the construction perspective, the wind field is mostly located in a remote place. Generally, the wind field is 200 kilometers away from a manufacturing plant and is about 500 kilometers away from the manufacturing plant, and the development and construction period of the wind field is short. When the traditional tower barrel is produced according to the established process, the traditional tower barrel is influenced by the factors of material preparation, production scheduling plan, finished product storage and storage yard. Not only that, the length, width, height and weight of the manufactured steel tower tube are limited by traffic conditions, and the long-distance transportation must cost high cost.

Example one

Please refer to fig. 1, the utility model provides a concrete tower section of thick bamboo 1, concrete tower section of thick bamboo 1 includes from lower to upper N level fractional order piece formula tower section of thick bamboo ring piece of superpose in proper order, and is adjacent can dismantle the connection between fractional order piece formula tower section of thick bamboo ring piece 11, wherein, N is for being greater than 1 integer. Specifically, N may be, but is not limited to, 2, 5, 10, 15, 20, 23, or 30, etc.

The utility model discloses a concrete tower section of thick bamboo 1 adopts multistage burst formula tower section of thick bamboo ring piece 11 to splice and forms, and the required area of production burst formula tower section of thick bamboo ring piece 11 is less, and burst formula tower section of thick bamboo ring piece 11 volume is less, and the transportation is comparatively convenient, and the cost of transportation is lower, and hoist and mount are comparatively simple, and the hoist and mount time limit for a project can guarantee; the quality precision is controllable, and the component quality is high: the component is manufactured by adopting a high-precision die and modern numerical control machining equipment to polish, the dimensional precision of the component and the flatness of a contact surface are further improved, the dimensional deviation of the component is small, and therefore the construction and installation efficiency is improved.

Example two

Referring to fig. 1 and fig. 2, the present embodiment further provides a concrete tower drum, and the concrete tower drum in the present embodiment further includes the following contents compared to the concrete tower drum in the first embodiment:

as an example, the top of the segmented tower ring piece 11 of the first stage, and the top and the bottom of the segmented tower ring pieces 11 of the second to nth stages are provided with threaded sleeves (not shown); the concrete tower tube 1 further comprises a stud bolt, and the stud bolt is inserted into the threaded sleeve in the segmented tower tube ring piece 11 of the adjacent stage so as to connect the segmented tower tube ring pieces 11 of the adjacent stage.

Furthermore, the two ends of the segmented tower ring piece 11 may be arranged in a step shape, so that the upper and lower segmented tower ring pieces 11 can be clamped.

Correspondingly, the threaded sleeve may be provided on a vertical step surface.

This implementation is adjacent piece formula tower section of thick bamboo ring piece 11 can produce "dry joint" when hoist and mount, through stud can realize the connection of "dry joint", it is adjacent not need grout or cementitious material firmly to connect between the piece formula tower section of thick bamboo ring piece 11.

Referring to fig. 3, further, the bottom of the segmented tower ring segment 11 from the second level to the nth level is provided with a positioning pin 115, the top of the segmented tower ring segment from the first level to the nth-1 level is provided with a positioning hole 116 corresponding to the positioning pin 115, and the positioning pin 115 at the bottom of the segmented tower ring segment 11 at any level is inserted into the positioning hole at the top of the segmented tower ring segment 11 at the next level. Through the positioning pin 115 and the positioning hole 116, the adjacent split tower ring piece 11 can be accurately positioned, and accurate hoisting can be realized.

The positioning pins 115 and the positioning holes 116 may be used for positioning first, and then the stud bolts are inserted through the threaded sleeves to achieve the connection and fixation of the segmented tower ring segments 11 of the adjacent segments.

Each stage of the segmented tower ring piece 11 can be formed by splicing 2 to 10 sub ring pieces. As an example, the segmented tower ring piece 11 of the nth stage may be formed by splicing two half sub-ring pieces, and the segmented tower ring pieces 11 of the 1 st to N-1 st stages may be formed by splicing four quarter sub-ring pieces. Specifically, the segmented tower ring segments 11 may include, but are not limited to, circular ring segments.

Fig. 2 illustrates a top view of one half of the sub-ring segment, and the inner radius, the outer radius, and the radius at the step are labeled in mm. It is understood that the dimensions in the figures are only examples and can be flexibly set by a person skilled in the art according to actual needs.

Referring to fig. 3 and 4, adjacent sub-ring segments of each stage of the segmented tower ring segment 11 may be fixed by fixing members 112, for example, the fixing members 112 may be stud bolts, and after the adjacent sub-ring segments are butted, the stud bolts penetrate through the adjacent sub-ring segments and are fixed at both ends by nuts.

Specifically, each sub-ring piece is internally provided with a fixing hole and a notch 113, and the notch 113 is positioned on one side of the fixing hole far away from the edge of the sub-ring piece and communicated with the fixing hole; at least one of the two adjacent sub-ring sheets is provided with a temporary containing part 111; before each sub-ring piece is spliced, the fixing piece 112 is located in the temporary containing part 111, and after each sub-ring piece is spliced, the fixing piece 112 is inserted into the fixing hole of two adjacent sub-ring pieces

Furthermore, a temporary containing position 111 can be further arranged in at least one sub-ring piece, the fixing piece 112 can be firstly stopped at the temporary containing position 111, after the adjacent sub-ring pieces are butted, the fixing piece 112 is pushed into the fixing hole of the sub-ring piece from the notch 113, and then nut fixing is carried out at the notch 113.

Further, shear keys 114 may be provided at the junctions of adjacent sub-ring segments to reduce stress and impact forces.

The width of each stage of the segmented tower ring piece 11 may be set according to actual conditions, the width of each stage of the segmented tower ring piece 11 may be the same or different, and preferably, in this embodiment, the width of each stage of the segmented tower ring piece 11 decreases gradually from the first stage to the nth stage.

As an example, a prestressed rib (not shown) may be inserted into each of the segmented tower ring pieces 11, and after the hoisting is completed, the segmented tower ring pieces 11 are prestressed and tensioned, so as to provide stability for the hoisted segmented tower ring pieces 11.

As an example, the segmented tower segments 11 may each be concrete segments.

An object of the utility model is to provide a can collect the concrete tower section of thick bamboo of quick production, installation. The utility model can intensively and industrially produce the sectional type tower cylinder ring plate 11, and reduce the land use area through a self-grinding complete automatic flow production line, and can effectively reduce the labor intensity of workers and improve the production efficiency; by designing and researching special equipment, the hoisting and transferring work of a large tower barrel in the manufacturing of the wind power tower barrel is solved; finally, the disadvantage of long-distance transportation cost of the assembled concrete tower cylinder ring piece is solved by the shortest manufacturing period and the nearest transportation distance, and the manufacturing and delivery of the wind power tower cylinder are completed.

EXAMPLE III

Referring to fig. 5 in conjunction with fig. 1 to fig. 4, the present embodiment further provides a cone-straight mixing tower, which includes: a concrete tower 1 as described in embodiment one or two; and the steel tower barrel 2 is positioned at the top of the concrete tower barrel 1, and is detachably connected with the concrete tower barrel 1.

The utility model discloses a straight lower part that mixes tower of awl adopts concrete tower section of thick bamboo 1, upper portion adopts steel tower section of thick bamboo 2, when so design not only static strength satisfies the requirement, there is not the bucking problem almost, has good damping characteristic moreover, and the energy-absorbing is effectual, and its shock resistance and fatigue resistance can be superior, and no power generation volume loss requires lowly to control system. .

By way of example, the steel tower 2 is detachably connected to the nth-stage segmented tower ring segment 11.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (10)

1. A concrete tower drum is characterized by comprising N-level segmented tower drum ring pieces which are sequentially overlapped from bottom to top, wherein the adjacent segmented tower drum ring pieces are detachably connected, and N is an integer larger than 1.

2. A concrete tower drum, according to claim 1, wherein: the top of the first-stage piece-dividing type tower cylinder ring piece, and the top and the bottom of the second-stage to Nth-stage piece-dividing type tower cylinder ring pieces are provided with threaded sleeves; the concrete tower barrel further comprises a stud bolt, and the stud bolt is inserted into the threaded sleeve in the adjacent segmented tower barrel ring piece so as to connect the adjacent segmented tower barrel ring pieces.

3. A concrete tower drum, according to claim 1, wherein: the N-th-stage segmented tower cylinder ring piece is formed by splicing two half sub-ring pieces, and the first-stage to the N-1-th-stage segmented tower cylinder ring pieces are formed by splicing four quarter sub-ring pieces.

4. A concrete tower drum, according to claim 3, wherein: the concrete tower tube also comprises a fixing piece and a shear key; each sub-ring piece is internally provided with a fixing hole and a notch, and the notch is positioned on one side of the fixing hole far away from the edge of the sub-ring piece and is communicated with the fixing hole; at least one of the two adjacent sub-ring sheets is provided with a temporary holding part; before the sub-ring pieces are spliced, the fixing piece is positioned in the temporary containing position, and after the sub-ring pieces are spliced, the fixing piece is inserted into the fixing holes of the two adjacent sub-ring pieces; the shear key is arranged at the joint of the adjacent sub-ring pieces.

5. A concrete tower drum, according to claim 1, wherein: positioning pins are arranged at the bottoms of the second-level to Nth-level split tower cylinder ring pieces, positioning holes corresponding to the positioning pins are arranged at the tops of the first-level to Nth-1-level split tower cylinder ring pieces, and the positioning pins at the bottoms of the split tower cylinder ring pieces of any level are inserted into the positioning holes at the tops of the split tower cylinder ring pieces of the next level.

6. A concrete tower drum, according to claim 1, wherein: from the first stage to the Nth stage, the widths of the segmented tower drum ring pieces at each stage are sequentially decreased progressively.

7. A concrete tower drum, according to claim 1, wherein: prestressed tendons are inserted into the segmented tower cylinder ring pieces at each level.

8. A concrete tower drum according to any one of claims 1 to 7, wherein: the split tower barrel ring pieces are all concrete ring pieces.

9. A conical-straight mixing tower, comprising:

a concrete tower according to any one of claims 1 to 8;

and the steel tower cylinder is positioned at the top of the concrete tower cylinder and is detachably connected with the concrete tower cylinder.

10. The conical-straight mixing tower according to claim 9, wherein: the steel tower cylinder is detachably connected with the nth-grade segmented tower cylinder ring piece.

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