Tower mounting method

Abstract

The present application provides a tower mounting method. A tower at least comprises a first tower section and a second tower section which are stacked in the height direction. The tower mounting method comprises the following steps: mounting the first tower section at a predetermined position; arranging a tower mounting auxiliary tooling on the outer side and / or the inner side the upper end of the first tower section, wherein the tower mounting auxiliary tooling is an annular member circumferentially surrounding the upper end of the first tower section, and the upper edge of the annular member is higher than the upper surface of the first tower section; applying a bedding mortar on the upper surface of the first tower section; and seating the second tower section on the bedding mortar. In the tower mounting method of the present application, by using the tower mounting auxiliary tooling, the loss of the bedding mortar can be effectively reduced, ensuring full bedding mortar at the joint of two adjacent tower sections, thereby improving the connection quality of the tower.

Description

Tower installation method Technical Field

[0001] This application relates to the field of wind power generation technology, and more specifically, to a tower installation method. Background Technology

[0002] Wind turbines utilize towers to mount the rotors high in the air to more effectively capture wind energy. Commonly used tower types in current technology include steel towers and concrete towers. Compared to steel towers, concrete towers offer advantages such as lower cost, longer service life, and better stability. Therefore, most current wind turbines use concrete towers. As wind turbine capacity increases, the diameter and height of concrete towers also increase, requiring the tower to be divided into multiple sections in height, which are then connected sequentially along the vertical direction during installation.

[0003] In existing technologies, a grout is typically used to bond two adjacent tower sections together. Specifically, during tower installation, the first tower section is pre-installed, then grout is applied to its upper surface, and the second tower section is then lowered onto the first section and the grout in the appropriate position. After the grout solidifies, the two tower sections are joined together. However, this connection method suffers from several drawbacks. The grout is squeezed out and falls from the inside and outside of the tower, resulting in significant grout loss. Furthermore, excessive grout extrusion can lead to incomplete grout filling at the joint between the two tower sections, thus reducing the quality of the connection.

[0004] Summary of the Invention

[0005] In order to solve the above-mentioned problems in the prior art, this application provides an auxiliary tooling for tower installation, which solves the problems of large slurry loss and incomplete slurry filling at the joint between two tower sections during tower installation.

[0006] According to one aspect of this application, a tower installation method is provided, the tower comprising at least a first tower segment and a second tower segment stacked in the height direction, the tower installation method comprising the following steps: installing the first tower segment at a predetermined position; providing a tower installation auxiliary tooling on the outer and / or inner side of the upper end of the first tower segment, the tower installation auxiliary tooling being an annular member surrounding the upper end of the first tower segment in the circumferential direction, and the upper edge of the annular member being higher than the upper surface of the first tower segment; applying slurry to the upper surface of the first tower segment; and placing the second tower segment on the slurry.

[0007] According to one aspect of this application, the step of setting tower installation auxiliary fixtures on the outer and / or inner side of the upper end of the first tower section can be performed before or after the first tower section is installed in a predetermined position.

[0008] According to one aspect of this application, the tower installation method further includes: after placing the second tower section on the slurry, removing the tower installation auxiliary tooling.

[0009] According to one aspect of this application, the tower installation method further includes: after setting the tower installation auxiliary tooling and before applying the slurry, setting a leveling part on the upper surface of the first tower section; or before setting the tower installation auxiliary tooling, setting a leveling part on the upper surface of the first tower section.

[0010] According to one aspect of this application, the inner side of the annular member is further provided with an insertion protrusion, which can be supported on the upper surface of the first tower section. In the step of setting the leveling part, the height of the leveling part is made to be approximately equal to or slightly higher than the height of the insertion protrusion.

[0011] According to one aspect of this application, when the tower installation auxiliary tooling is only provided on one side of the first tower section in the radial direction, the tower installation method further includes: after the second tower section is placed on the slurry, on the other side of the first tower section in the radial direction, grouting is performed at the joint between the first tower section and the second tower section.

[0012] According to one aspect of this application, the annular member is sheet-like and has at least one opening in the circumferential direction, allowing the annular member to be opened.

[0013] According to one aspect of this application, the tower installation auxiliary tooling includes a long strip-shaped belt, a first connecting portion disposed at a first end of the belt, and a second connecting portion disposed at a second end of the belt, wherein the first connecting portion and the second connecting portion can be connected to each other so that the belt forms the annular member.

[0014] According to one aspect of this application, the first connecting portion and the second connecting portion are disposed on the first surface of the belt body, and an insertion protrusion is disposed on the second surface of the belt body opposite to the first surface. In the step of setting the tower installation auxiliary tooling on the upper outer periphery of the first tower section, the insertion protrusion is placed on the upper surface of the first tower section.

[0015] According to one aspect of this application, the tower installation method further includes: after the second tower section is placed on the slurry, removing the tower installation auxiliary tooling, wherein a hook is provided on the first surface of the belt body facing away from the tower body, and in the step of removing the tower installation auxiliary tooling, the connection between the first connecting part and the second connecting part is first released, and then the belt body is separated from the tower body by pulling the hook.

[0016] According to one aspect of this application, the belt body includes multiple belt segments, the multiple belt segments including a first segment, a last segment, and at least one intermediate segment disposed between the first segment and the last segment. The step of setting the tower installation auxiliary tooling on the upper outer periphery of the first tower segment further includes: determining the number of intermediate segments according to the circumference of the tower, and the intermediate segments being interconnected with the first segment and the last segment respectively. Attached Figure Description

[0017] The above and other objects and features of this application will become clearer from the following description of embodiments in conjunction with the accompanying drawings, in which:

[0018] Figure 1 is an exploded view of the tower installation auxiliary tooling according to an embodiment of this application;

[0019] Figure 2 is a schematic diagram of the tower installation auxiliary tooling connected into a ring-shaped clamp according to an embodiment of this application;

[0020] Figures 3 and 4 show schematic diagrams of the first and second connecting parts on the tower installation auxiliary tooling, respectively.

[0021] Figures 5 and 6 show schematic diagrams of the third and fourth connecting parts on the auxiliary tooling for tower installation, respectively.

[0022] Figure 7 shows a schematic diagram of the interconnection between the third and fourth connecting parts;

[0023] Figure 8 shows a schematic diagram of the insertion protrusion disposed on the inner side of the belt body according to an embodiment of the present application;

[0024] Figure 9 shows a schematic diagram of the structure of the removal rod according to an embodiment of this application;

[0025] Figure 10 is a flowchart of a tower installation method according to an embodiment of this application. Detailed Implementation

[0026] The following detailed embodiments are provided to aid the reader in gaining a comprehensive understanding of the methods, apparatus, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatus, and / or systems described herein will become apparent upon understanding this disclosure. For example, the order of operations described herein is merely illustrative and is not limited to those orders set forth herein, but may be changed as will become clear upon understanding this disclosure, except for operations that must occur in a specific order. Furthermore, for clarity and conciseness, descriptions of features known in the art may be omitted.

[0027] The features described herein may be implemented in different forms and should not be construed as limited to the examples described herein. Rather, the examples described herein are provided only to illustrate some of the many feasible ways of implementing the methods, apparatus and / or systems described herein, many of which will become clear upon understanding the disclosure of this application.

[0028] As used herein, the term “and / or” includes any one of the associated listed items and any combination of any two or more.

[0029] Although terms such as “first,” “second,” and “third” may be used herein to describe various components, assemblies, regions, layers, or parts, these components, assemblies, regions, layers, or parts should not be limited by these terms. Rather, these terms are used only to distinguish one component, assembly, region, layer, or part from another. Thus, without departing from the teaching of the examples described herein, the first component, first assembly, first region, first layer, or first part referred to as the first component, first assembly, first region, first layer, or first part may also be referred to as the second component, second assembly, second region, second layer, or second part.

[0030] In the specification, when an element such as a layer, region, or substrate is described as being "on" another element, "connected to," or "bonded to" another element, the element may be directly "on" another element, directly "connected to," or "bonded to" the other element, or one or more other elements may be present in between. Conversely, when an element is described as being "directly on" another element, "directly connected to," or "directly bonded to" another element, no other elements may be present in between.

[0031] The terminology used herein is for the purpose of describing various examples only and is not intended to limit disclosure. Unless the context clearly indicates otherwise, the singular form is intended to include the plural form as well. The terms “comprising,” “including,” and “having” indicate the presence of the described features, quantities, operations, components, elements, and / or combinations thereof, but do not preclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof. The term “a plurality” represents any quantity of two or more.

[0032] The directional terms “above,” “below,” “top,” and “bottom” used in this application, unless otherwise specified, are based on the orientation of the product when it is in normal use.

[0033] Unless otherwise defined, all terms used herein, including technical and scientific terms, shall have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains upon understanding this application. Unless expressly defined herein, terms such as those defined in a general dictionary shall be interpreted as having a meaning consistent with their meaning in the context of the relevant field and in this application, and shall not be interpreted in an idealized or overly formalistic manner.

[0034] To address the problems existing in the tower installation process of the prior art, this application provides a tower installation method, which utilizes an auxiliary tooling for tower installation to assist in the connection between two adjacent tower sections. The auxiliary tooling provided in the embodiments of this application is generally a ring-shaped component, capable of surrounding the inner and / or outer side of the joint between two adjacent tower sections, preventing grout from falling off the joint and reducing grout loss. Furthermore, through the sealing and squeezing action of the auxiliary tooling, the grout filling at the joint is more complete and compact, thereby improving the connection quality between the two tower sections.

[0035] According to the embodiments of this application, the tower installation auxiliary tooling can be retained on the tower after two adjacent tower sections are connected together, so as to enhance the connection quality and strength of the tower sections. Alternatively, the tower installation auxiliary tooling can be removed after the two tower sections are connected so that it can be reused when connecting the next set of tower sections.

[0036] The tower installation auxiliary tooling according to the embodiments of this application can be a complete ring-shaped component or a ring-shaped component formed by connecting multiple separate arc-shaped components, thereby facilitating disassembly and adapting the size of the ring-shaped component to the circumference of the tower. In this case, the ring-shaped component can be made of metal, wood, resin, etc.

[0037] Furthermore, the tower installation auxiliary tooling according to the embodiments of this application can also be a ring-shaped component formed by a long strip with certain bending properties. The long strip can be a thin sheet made of metal, rubber, or resin. As an example, the ring-shaped component can be formed by a single strip or by multiple strips connected and enclosed together. In the storage and transportation state, the long strip can be unfolded into a planar shape, thereby facilitating stacking and storage and reducing the space occupied.

[0038] Below, taking the example of an annular component enclosed by a belt, embodiments of the tower installation method according to this application will be described in detail with reference to the accompanying drawings.

[0039] As shown in Figure 1, the tower installation auxiliary tooling according to this application includes a long strip-shaped belt 110, a first connecting portion 120 disposed at a first end of the belt 110, and a second connecting portion 130 disposed at a second end of the belt 110. As shown in Figure 2, the first connecting portion 120 and the second connecting portion 130 can be connected to each other, so that the tower installation auxiliary tooling can form a ring-shaped component, thereby fitting on the outer and / or inner side of the tower at the joint of two adjacent concrete tower sections.

[0040] The tower consists of multiple concrete tower sections stacked sequentially in the height direction. For ease of description, two adjacent tower sections are referred to as the first tower section and the second tower section, with the first tower section located below the second tower section.

[0041] During the connection of two adjacent tower sections, a joint is formed when the second tower section falls downward onto the upper surface of the first tower section. This joint has an inner outlet and an outer outlet in the radial direction of the tower. Grout in the joint may overflow and fall from either the outer outlet or the inner outlet. Therefore, the tower installation auxiliary tooling according to this application can be fitted onto the outer side of the joint to seal the grout from the outside, while excess grout is squeezed out from the inner outlet of the joint. Alternatively, the tower installation auxiliary tooling according to this application can also be fitted onto the inner side of the joint to seal the grout from the inside, allowing excess grout to be squeezed out from the outer outlet of the joint.

[0042] Of course, auxiliary fixtures for tower installation according to this application can also be installed on both the inner and outer sides of the joint to seal it simultaneously from both sides. However, in this case, a certain amount of overflow outlets needs to be reserved on the annular component to squeeze out excess slurry and avoid local imbalance at the joint between the first and second tower sections, which could lead to misalignment or tilting of the tower sections. As an example, when auxiliary fixtures for tower installation according to this application are installed on both the inner and outer sides of the joint, some overflow outlets can be opened on the belt 110 to ensure that excess slurry can be squeezed out from the overflow outlets.

[0043] To cover and seal the joint between two adjacent tower sections, the belt 110 has a certain width and length. The width of the belt 110 corresponds to the height direction of the tower section, and the width of the belt 110 is greater than the width of the joint between the two adjacent tower sections. For example, the width of the belt 110 is usually 6cm-10cm, but it is not limited to this; it only needs to be able to roughly cover the joint and overlap the upper and lower edges of the joint to seal the joint and prevent grout from overflowing. The length of the belt 110 is basically equal to or slightly greater than the perimeter of the joint between the two adjacent tower sections, so as to prevent a large gap between it and the surface of the tower section when it is installed at the joint, thereby preventing grout from squeezing out from the gap between them. When the first connecting part 120 and the second connecting part 130 are connected to each other, the two ends of the belt 110 can overlap each other by a certain length to prevent a large gap at the joint. As an example, there is a certain gap between the belt 110 and the surface of the first tower section, for example, a gap of 4-6 mm between the belt 110 and the surface of the first tower section, so as to facilitate the hoisting of the second tower section and prevent the belt 110 from being squeezed during the descent of the second tower section.

[0044] The belt body 110 can be a single, integral belt. A first connecting portion 120 is located at the first end of the belt body 110, and a second connecting portion 130 is located at the second end of the belt body 110. In the example shown in Figures 1 to 3, the first connecting portion 120 includes a hook, and the second connecting portion 130 includes a locking ring 132. The locking ring 132 can be connected to the hook, thereby enclosing the belt body 110 to form an annular clamp and securing it to one radial side of the joint, preventing slurry from overflowing and falling out.

[0045] According to some embodiments of this application, the locking ring 132 can be formed as a latch that can be flipped left and right or up and down relative to the belt body 110. After being engaged from both ends of the belt body 110, the locking ring 132 can be hooked onto the hook by flipping it, thereby constraining the first connecting portion 120 and the second connecting portion 130 in the circumferential direction and preventing the two ends of the belt body 110 from separating from each other. To further prevent the locking ring 132 from separating from the hook, a pin can also be provided. In this case, the hook is provided with a pin hole. After the pin is inserted into the pin hole, the locking ring 132 can be constrained onto the hook.

[0046] According to other embodiments of this application, the locking ring 132 is provided with a ring hole, and the hook is connected to the locking ring 132 by being inserted into the ring hole. The second connecting part 130 also includes a locking ring driving part, which, by operating the locking ring driving part, can move the locking ring 132 relative to the hook, thereby locking or releasing it from the hook.

[0047] As shown in Figure 4, as an example, the locking ring drive unit includes a handle 134 and a linkage bracket 131. Specifically, the first end of the handle 134 is rotatably connected to the end of the belt body 110 via a first pivot 133, and the first end of the linkage bracket 131 is rotatably connected to the handle 134 via a second pivot 135, which is located between the first and second ends of the handle 134. The locking ring 132 is disposed at the second end of the linkage bracket 131. When the second end of the handle 134 is operated to rotate the handle 134 around the first pivot 133, the linkage bracket 131 can be moved, thereby locking or releasing the locking ring 132 from the hook.

[0048] As an example, when the handle 134 is in a horizontal position, or when the length direction of the handle 134 is consistent with the circumferential direction of the belt 110, the locking ring 132 can be locked with the hook of the first connecting part 120. When the handle 134 is rotated from the locked position by a certain angle, the locking ring 132 can be moved to release it from the hook.

[0049] The direction of rotation of the handle 134 depends on the engagement direction of the locking ring 132 and the hook. For example, in the example shown in Figures 3 and 4, the extension direction of the hook is approximately parallel to the surface of the belt body 110, so the locking ring 132 can engage with the hook in the height direction, thereby allowing the handle 134 to rotate in the vertical plane. However, the hook can also extend along the thickness direction of the belt body, i.e., the radial direction of the annular member. In this case, the locking ring 132 engages with the hook in the horizontal direction, and the handle 134 rotates in the horizontal plane.

[0050] According to one aspect of an embodiment of this application, the locking ring 132 may be fixedly connected to the linkage bracket 131.

[0051] According to another aspect of the embodiments of this application, the locking ring 132 can be movably connected to the linkage bracket 131, and an elastic member 137 is also provided between the locking ring 132 and the linkage bracket 131. By providing the elastic member 137, the locking force between the locking ring 132 and the hook can be ensured, and the locked state between the two can be ensured, so as not to easily come apart.

[0052] As an example, the linkage bracket 131 is formed as a frame structure, the first end of the locking ring 132 has an annular hole, the second end of the locking ring 132 is inserted into the frame structure of the linkage bracket 131, and the elastic member 137 is disposed in the frame structure and applies a force toward the handle 134 to the locking ring 132. As an example, the elastic member 137 is a compression spring, the second end of the locking ring 132 has a spring support flange, one end of the spring abuts against the support flange of the locking ring 132, and the second end of the spring abuts against the inner surface of the linkage frame.

[0053] Due to the presence of the elastic member 137, the locking ring 132 can move relative to the linkage bracket 131, thereby controlling the extension amount of the locking ring 132 relative to the linkage bracket 131, and thus controlling the extension position of the locking ring 132. This allows for a certain adjustment margin in the circumference of the tower installation auxiliary tooling after it is formed into a ring. Furthermore, due to the elastic force of the elastic member 137, the locking ring 132 tends to be pulled towards the linkage bracket 131. Therefore, when the locking ring 132 is engaged with the hook, it can always be locked onto the hook under the elastic force of the elastic member 137.

[0054] Furthermore, by providing the elastic member 137, the handle 134 can be prevented from rotating arbitrarily in the locked state, thus preventing the unlocked state from being released, thereby improving the locking reliability. Specifically, since the linkage bracket 131 is connected to the handle via the second pivot shaft 135, in the locked state, the linkage bracket 131 applies a pulling force to the handle 134 at the second pivot shaft 135. Under the action of this pulling force, a torque is generated that causes the handle 134 to rotate around the first pivot shaft 133, giving the handle 134 a tendency to rotate around the first pivot shaft 133.

[0055] During the operation of locking the locking ring 132 to the hook by rotating the handle 134, the handle 134 rotates in a first direction, for example, counterclockwise in Figure 4. Before the second pivot 135, the first pivot 133, and the locking ring 132 are aligned, the locking ring 132 exerts a torque on the handle 134 in the opposite direction under the action of the elastic force. In this case, the locking ring 132 cannot be locked to the hook. When the second pivot 135, the first pivot 133, and the locking ring 132 are aligned, the locking ring 132 and the hook are locked. At this time, the locking force between the locking ring 132 and the hook and the elastic force of the elastic member are aligned. However, this state is not stable. Under the action of vibration or small external force, the handle 134 is prone to displacement relative to its position, resulting in unlocking.

[0056] When the handle 134 continues to rotate in the first direction, the second pivot 135 will deviate from the straight line between the first pivot 133 and the locking ring 132. Under the action of the elastic force, the locking ring 132 applies a torque to the handle 134 in the same direction as the first direction, thereby preventing the handle 134 from rotating in the opposite direction and keeping the locking ring 132 and the hook in a stable locked state, ensuring reliability during use.

[0057] After the handle 134 rotates along the first direction and passes the straight line between the first pivot 133 and the locking ring 132 and continues to rotate by a predetermined angle, the handle 134 can abut against the belt body 110 or the pad or protrusion provided on the belt body 110 to prevent the handle 134 from continuing to rotate.

[0058] By reversing the handle 134, the lock can be released, facilitating the disassembly of the tower installation auxiliary tooling according to this application. Since quick connection and disassembly can be achieved simply by rotating the handle 134, the auxiliary connection and disassembly processes are reduced, improving the efficiency of tower installation.

[0059] According to an embodiment of this application, in order to enable the locking ring 132 to move stably relative to the linkage bracket 131, a guide groove 136 is provided on the side wall of the linkage bracket 131. The spring support flange 139 on the locking ring 132 can be inserted into the guide groove 136 and move stably under the constraint of the guide groove 136.

[0060] To improve connection stability and strength, a first reinforcing pad 128 is provided at the first end of the belt body 110, and a first connecting portion 120 is provided on the first reinforcing pad 128. A second reinforcing pad 138 is provided at the second end of the belt body 110, and a second connecting portion 130 is provided on the second reinforcing pad 138. As an example, the belt body 110 can be made of stainless steel, and the first reinforcing pad 128 and the second reinforcing pad 138 can be angle steel. The angle steel can be welded to the belt body 110 to increase the thickness and strength of the connection and prevent breakage at the connection between the belt body 110 and the first connecting portion 120 and the second connecting portion 130.

[0061] Typically, the tower casing is large, and the length of a single belt is insufficient to form a complete loop. Therefore, according to the embodiments of this application, the belt 110 is divided into multiple segments along its length, as shown in Figure 1. The belt 110 includes three segments: a first segment 100, a last segment 200, and an intermediate segment 300. The belt 110 can have at least two segments, that is, at least a first segment 100 and a last segment 200, and may also include at least one intermediate segment 300 located between the first segment 100 and the last segment 200.

[0062] The first connecting part 120 and the second connecting part 130 are respectively provided on the ends where the first segment 100 and the tail segment 200 meet. In addition to the ends where the first segment 100 and the tail segment 200 are connected, the other two adjacent segments are respectively provided with a third connecting part 140 and a fourth connecting part 150, which can be connected to each other.

[0063] As shown in Figures 5, 6, and 7, the third connecting part 140 and the fourth connecting part 150 are respectively L-shaped or T-shaped pads. One end of the pad is fixedly connected to the belt body 110, and a through hole is formed on the other end of the pad. For example, a through hole 141 is provided on the third connecting part, and a through hole 151 is provided on the fourth connecting part 150. By passing a bolt 171 through the through hole and engaging with a nut 172, the third connecting part 140 and the fourth connecting part 150 can be connected to each other.

[0064] At the position where the third connecting part 140 and the fourth connecting part 150 are connected, the ends of the belt body 110 can overlap each other, thereby improving the sealing performance of the tower section joint.

[0065] In addition, the circumference of the entire clamp can be adaptively adjusted by changing the length of the bolt 171. For example, when the length of the entire clamp 110 is less than the circumference of the tower, a longer bolt 171 can be used to adjust the distance between the third connecting part 140 and the fourth connecting part 150 to increase the circumference of the clamp and make it compatible with the circumference of the tower.

[0066] By setting a pad and placing the first connecting part 120 and the second connecting part 130 on the protruding part of the pad, the handle 134 can be separated from the belt body 110 by a certain distance, facilitating rotation operation and avoiding mutual interference. In addition, the pad protrudes laterally relative to the belt body 110, allowing the handle 134 to rotate in a vertical direction parallel to the plane of the belt body, providing a large rotation space and facilitating locking and unlocking operations for workers.

[0067] Hereinafter, the surface of the belt body 110 that is away from the tower section will be referred to as the first surface, and the surface that faces the tower section will be referred to as the second surface. The first connecting part 120, the second connecting part 130, the third connecting part 140 and the fourth connecting part 150 are all provided on the first surface of the belt body 110.

[0068] As shown in Figure 8, an insertion protrusion 180 is provided on the second surface of the belt body 110. The insertion protrusion 180 can be a stainless steel sheet or a bolt welded to the belt body 110. When the tower installation auxiliary tooling is installed at the joint of the tower section, the insertion protrusion 180 can be inserted into the joint of two adjacent concrete tower sections to prevent the tower installation auxiliary tooling from sliding down the tower section.

[0069] As an example, the length of the inserted protrusion 180 is 1cm-2cm to avoid the protrusion 180 being too long and difficult to pull out from the grout, and to effectively prevent the reduction of the connection quality at the joint.

[0070] An insertion protrusion 180 is disposed at the middle of the width direction of the belt body 110. When the belt body 110 is disposed on the upper surface of the tower section, the lower part of the belt body 110 in the width direction wraps around the outer periphery of the first tower section, and the upper part of the belt body 110 in the width direction protrudes a predetermined height relative to the upper surface of the first tower section, thereby being able to surround the outer periphery of the lower end of the second tower section.

[0071] According to an embodiment of this application, multiple insertion protrusions 180 are provided and spaced apart along the length of the belt body 110. Compared with a structure in which the insertion protrusions 180 are continuously arranged along the length of the belt body 110, providing multiple insertion protrusions 180 and arranging them separately facilitates the removal of the tower installation auxiliary tooling from the joint between the two tower sections.

[0072] In addition, the insertion protrusion 180 is designed as a thin sheet to facilitate removal from the slurry.

[0073] According to another aspect of this application, the insertion protrusion 180 may have a certain thickness, such as 5mm-10mm, so that when the upper tower section is placed on the upper surface of the lower tower section, the lower end face of the upper tower section can press against the insertion protrusion 180, which helps to position the tower auxiliary tooling and prevents the annular component from bulging or deforming locally under the pressure of the slurry.

[0074] According to another aspect of this application, when the auxiliary tooling of the tower is set on the upper surface of the lower tower section and a leveling part is provided on the upper surface of the lower tower section, the height of the insertion protrusion 180 can be equivalent to or slightly lower than the height of the leveling part provided on the upper surface of the lower tower section, so that while the upper tower section presses down on the insertion protrusion 180, the insertion protrusion 180 is prevented from affecting the flatness after leveling.

[0075] In addition, as shown in Figure 1, a hook 160 is provided on the first surface of the belt 110. When the auxiliary tooling for tower installation needs to be removed from the tower section, the belt 110 can be separated from the concrete by applying outward force through the hook 160.

[0076] The tower installation auxiliary tooling according to an embodiment of this application also includes a dismantling rod. As shown in FIG9, the dismantling rod 400 includes a rod body 40 and a hook 43 connected to one end of the rod body 40. The hook 43 can be engaged with a hook ring 160 to drive the belt body 110 away from the concrete tower section. The rod body 40 can also be configured as multiple segments that can be connected to each other to obtain the desired length and facilitate storage and transportation. External threads and internal threads are respectively provided at the ends of two adjacent rod bodies. Connecting multiple rod body segments to each other through threaded connections can lengthen the rod body. FIG9 shows an example of the rod body 40 including a first rod body segment 41 and a second rod body segment 42, but this application is not limited to this.

[0077] Figure 10 shows a flowchart of a tower installation method according to an embodiment of this application. Referring to Figure 10, the tower installation method includes the following steps:

[0078] Step S110: Install the first tower section at the predetermined position;

[0079] Step S120: Install the aforementioned tower installation auxiliary tooling at the upper end of the first tower section;

[0080] Step S140: Apply slurry to the upper surface of the first tower section;

[0081] Step S150: Place the second tower section on the slurry.

[0082] As mentioned above, the tower installation auxiliary fixture is generally formed as a ring-shaped component. In step S120, the tower installation auxiliary fixture can be set on the radial inner or outer side of the first tower section, or it can be set on both the radial inner and outer sides of the first tower section respectively. The ring-shaped component is then fitted onto the upper end of the first tower section. When the tower installation auxiliary fixture is set on the first tower section, the lower edge of the ring-shaped component surrounds the outer periphery of the first tower section, and the upper edge of the ring-shaped component is higher than the upper surface of the first tower section.

[0083] It should be noted that step S120 can be performed before S110. That is, auxiliary installation fixtures for the lower tower section can be set at the upper end of the lower tower section before it is installed in place. Of course, step S120 can be performed after S110, and there is no specific limitation here.

[0084] As an example, when the annular member is a rigid component, if the annular member is entirely annular, it can be aligned with the first tower section from above and lowered downwards, so that the insertion protrusion 180 on the annular member supports the upper surface of the first tower section. If the annular member is composed of multiple rigid arc-shaped segments connected together, the multiple arc-shaped segments can be connected to each other to form an annular member before being installed from above the first tower section. Alternatively, multiple arc-shaped segments can be separately placed on the first tower section and then connected to each other to form an arc-shaped member.

[0085] When using the tower installation auxiliary fixture shown in Figure 1, the belt 110 is arranged around the upper outer periphery of the first tower section, and the belt 110 is fitted onto the upper outer periphery of the first tower section by connecting the first connecting part 120 and the second connecting part 130. At this time, the lower edge of the belt 110 in the width direction surrounds the upper outer periphery of the first tower section, while the upper edge of the belt 110 is higher than the upper surface of the first tower section.

[0086] In step S140, the amount of slurry overflowing from the top of the first tower section is reduced due to the blocking effect of the annular member. Furthermore, the annular member also prevents excessive slurry overflow and falling when the second tower section is placed above the first tower section, ensuring that the gap between the first and second tower sections is fully filled with slurry. Moreover, according to the tower installation method of this application, applying the slurry after setting the annular auxiliary fixture facilitates the smoothness of the slurry application and maintains its adhesive properties, while also ensuring the bonding quality of the upper tower section placed on the lower tower section.

[0087] Furthermore, the above-mentioned tower installation method may also include step S130, in which a leveling part is installed at the upper end of the first tower section after installing the tower installation auxiliary tooling and before setting the slurry. By setting the leveling part, the horizontality of the upper surface of the first tower section can be adjusted, thereby ensuring the verticality of the second tower section. In step S130, the leveling part is set to be approximately flush with or slightly higher than the height of the insertion protrusion 180.

[0088] According to embodiments of this application, after the two tower sections are connected, the tower installation auxiliary fixture can be retained on the tower, which helps to enhance the connection quality of the tower sections. Alternatively, the tower installation auxiliary fixture can be removed after the two tower sections are connected so that it can be reused when connecting the next set of tower sections. Therefore, as shown in FIG10, the tower installation method according to embodiments of this application may further include step S160, removing the tower installation auxiliary fixture. Step S160 can be performed after a predetermined time has elapsed since the second tower section was placed on the first tower section (that is, before the slurry has completely solidified).

[0089] When disassembling the tower installation auxiliary tooling, the annular component of the tower installation auxiliary tooling needs to have at least one opening to facilitate opening the annular component. When using the tower installation auxiliary tooling shown in Figure 1, in step S160, the first connecting part 120 and the second connecting part 130 are first loosened from each other, and then the belt 110 is separated from the tower by pulling the hook 160 to facilitate the connection operation of the next tower section.

[0090] According to the embodiments of this application, when the tower installation auxiliary tooling is set on the radial inner or outer side of the first tower section, the side of the tower section joint where the tower auxiliary tooling is not set is grouted, so that the grout at the joint is filled evenly and fully, preventing external dust and rainwater from seeping in, and at the same time repairing the outer surface, so that the outer surface of the tower is neat and beautiful.

[0091] The following is a brief, exemplary description of the process of using tower installation auxiliary tooling according to embodiments of this application in the interconnection of multiple tower sections.

[0092] First, a crane is used to hoist the first tower section into the predetermined position and fix it in place. If the first tower section is the bottom tower section, the lower end of the first tower section is connected to the tower foundation. If the first tower section is not the bottom tower section, the first tower section is fixedly connected to the tower section below it.

[0093] After the first tower section is installed in the predetermined position, the belt 110 is wrapped around the upper outer periphery of the lower first tower section, and the first connecting portion 120 and the second connecting portion 130 of the belt 110 are connected to each other, thereby forming a closed annular member around the upper outer periphery of the first tower section. Since the insertion protrusion 180 is provided on the inner surface of the belt 110, the insertion protrusion 180 can overlap the top of the first tower section, thereby positioning the belt 110 in the height direction of the tower without it falling downwards.

[0094] According to an embodiment of this application, since the belt body 110 includes multiple belt segments, namely, a first segment 100, a last segment 200, and at least one intermediate segment 300 disposed between the first segment 100 and the last segment 200, before setting the tower installation auxiliary tooling on the outer periphery of the upper end of the first tower segment, the required number of intermediate segments 300 is determined according to the circumference of the tower, an appropriate number of intermediate segments 300 are selected, and then the first segment 100, the intermediate segment 300, and the last segment 200 are connected end to end in sequence to form a belt body 110 of appropriate length, and then the belt body 110 is placed around the upper end of the first tower segment.

[0095] After setting up the auxiliary installation fixtures for the tower, a leveling device is installed on the top of the first tower section to ensure that the axis of the second tower section is perpendicular to the horizontal plane when it is installed on the first tower section. This ensures the verticality of the tower and prevents it from tilting, which would affect the overall safety of the wind turbine generator. In this application, by setting multiple insertion protrusions 180 instead of a continuous arrangement, they can be staggered with the leveling device to avoid interfering with its installation.

[0096] After the leveling unit is installed, slurry is applied to the top of the first tower section, filling the top of the first tower section with slurry. In this example, since the belt 110 is fitted around the outer periphery of the first tower section, and the upper edge of the belt 110 is higher than the top of the first tower section, the slurry can be prevented from overflowing and falling outwards by the obstruction of the belt 110, thereby reducing slurry loss.

[0097] After the slurry is applied, the second tower section is hoisted and lowered onto the slurry. Under the pressure of the second tower section, excess slurry is squeezed and overflows to both sides. However, in this application, because the belt 110 surrounds the outer periphery of the tower section, the squeezed slurry does not fall from the outside of the joint, and due to the sealing and squeezing effect applied by the belt 110, the slurry on the outside of the joint is fuller and more compact. At the same time, under the pressure of the second tower section, the slurry flows to the inside of the joint, thereby filling the inside with slurry, and then excess slurry is squeezed out from the inside.

[0098] After the predetermined time, remove the auxiliary fixtures for tower installation. For example, the timing of removing the auxiliary fixtures is determined based on the forming state of the slurry. Once the slurry has formed and no more slurry is falling outwards, the auxiliary fixtures can be removed. Here, the removal rod can be connected to a suitable length, and the hook 43 can be used to pull the hook ring 160 to remove the auxiliary fixtures.

[0099] The dismantled tower installation auxiliary tools are then reinstalled on the second tower section to proceed with the connection operation for the next tower section.

[0100] When using the tower installation method according to this application, grout loss can be effectively reduced, and the joints can be fully grouted, thereby improving the connection quality of the tower.

[0101] While embodiments of this application have been described in detail above, those skilled in the art can make various modifications and variations to the embodiments of this application without departing from the spirit and scope of this application. It should be understood that, to those skilled in the art, these modifications and variations will still fall within the spirit and scope of the embodiments of this application as defined in the claims.

Claims

1. A tower installation method, wherein the tower comprises at least a first tower section and a second tower section stacked in the height direction, characterized in that, The tower installation method includes the following steps: Install the first tower section at the predetermined position; A tower installation auxiliary tooling is provided on the outer and / or inner side of the upper end of the first tower section. The tower installation auxiliary tooling is a ring-shaped component that surrounds the upper end of the first tower section in the circumferential direction, and the upper edge of the ring-shaped component is higher than the upper surface of the first tower section. A slurry is applied to the upper surface of the first tower section; The second tower section is placed on the slurry.

2. The tower installation method according to claim 1, characterized in that, The tower installation method also includes: After the second tower section is placed on the slurry, the tower installation auxiliary tools are removed.

3. The tower installation method according to claim 1, characterized in that, The tower installation method also includes: After setting up the auxiliary tooling for tower installation and before applying the slurry, a leveling section is provided on the upper surface of the first tower section; or Before setting the auxiliary tooling for tower installation, a leveling part is provided on the upper surface of the first tower section.

4. The tower installation method according to claim 3, characterized in that, The inner side of the annular member is also provided with an insertion protrusion. In the step of setting the tower installation auxiliary tooling on the outer and / or inner side of the upper end of the first tower section, the insertion protrusion can be supported on the upper surface of the first tower section.

5. The tower installation method according to claim 1, characterized in that, When the auxiliary tooling for tower installation is only provided on one side of the first tower section in the radial direction, the tower installation method further includes: After the second tower section is placed on the slurry, the joint between the first tower section and the second tower section is grouted on the other side of the radial direction of the first tower section.

6. The tower installation method according to claim 1, characterized in that, Before or after installing the first tower section at the predetermined position, perform the step of setting tower installation auxiliary tooling on the outer and / or inner side of the upper end of the first tower section.

7. The tower installation method according to claim 1, characterized in that, The annular member is a thin sheet and has at least one opening in the circumferential direction, allowing the annular member to be opened.

8. The tower installation method according to any one of claims 1 to 7, characterized in that, The tower installation auxiliary tooling includes a long strip-shaped belt (110), a first connecting part (120) disposed at the first end of the belt (110), and a second connecting part (130) disposed at the second end of the belt (110). The first connecting part (120) and the second connecting part (130) can be connected to each other so that the belt (110) forms the annular component.

9. The tower installation method according to claim 8, characterized in that, The first connecting part (120) and the second connecting part (130) are disposed on the first surface of the belt body (110), and an insertion protrusion (180) is disposed on the second surface of the belt body (110) opposite to the first surface. In the step of setting the tower installation auxiliary tooling on the upper outer periphery of the first tower section, the insertion protrusion (180) is placed on the upper surface of the first tower section.

10. The tower installation method according to claim 9, characterized in that, The tower installation method further includes: after placing the second tower section on the slurry, removing the auxiliary tools for tower installation. The belt (110) is provided with a hook (160) on the first surface away from the tower. In the step of removing the tower installation auxiliary tooling, the connection between the first connecting part (120) and the second connecting part (130) is first released, and then the belt (110) is separated from the tower by pulling the hook (160).

11. The tower installation method according to claim 8, characterized in that, The belt body (110) includes multiple belt segments, each including a first segment (100), a last segment (200), and at least one intermediate segment (300) disposed between the first segment (100) and the last segment (200). The step of setting the tower installation auxiliary fixture on the upper outer periphery of the first tower segment further includes: The number of intermediate sections (300) is determined according to the circumference of the tower, and the intermediate sections are respectively connected to the first section (100) and the last section (200).

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