Fabricated fan jacket and construction method thereof

Abstract

The invention relates to the technical field of ocean engineering and electric power engineering, and discloses an assembly type fan jacket and a construction method thereof.A first supporting node and a second supporting node are connected, connection between pipe bodies is achieved, and solidification media are poured into the first supporting node and / or the second supporting node, so that the pipe bodies are connected. After the curing medium is cured, the bearing capacity of each supporting node of the jacket is improved, premature yield and deformation of each supporting node can be delayed or even inhibited, the phenomenon of plastic deformation under the action of external force is avoided, and the supporting performance of each supporting node can be better exerted.

Description

Technical Field

[0001] The present invention relates to the technical field of marine engineering and electric power engineering, and in particular to an assembled fan duct frame and a construction method thereof. Background Art

[0002] As the world energy crisis continues and fossil energy consumption damages the environment, human demand for renewable clean energy is increasing. Wind energy is one of the most commercially valuable and technologically mature clean energy sources. It has the characteristics of rich reserves, stable and continuous power generation, and high number of power generation hours, making it suitable for large-scale development.

[0003] As the foundation of the fan system, the fan duct frame has the advantages of stable and reliable structure, easy installation and convenient maintenance. But at the same time, its disadvantage is that the bearing capacity of the node part is relatively weak, and it is easy to produce large plastic deformation under the load of external force, which will affect the strength of the duct frame to a certain extent. Summary of the invention

[0004] In view of this, the present invention provides an assembled fan duct frame and a construction method thereof to solve the problem of relatively weak bearing capacity.

[0005] In the first aspect, the present invention provides an assembled fan duct frame, including a connecting rod group and a main pipe body. Specifically, there are multiple connecting rod groups, and any connecting rod group includes a first support node arranged crosswise; there are multiple main pipe bodies, and the multiple main pipe bodies are arranged at intervals in the circumferential direction. Any main pipe body is fixed to the adjacent main pipe body by at least two connecting rod groups arranged at intervals along the axial direction of the main pipe body, and the node where the main pipe body is connected to the connecting rod group is a second support node; wherein the first support node and / or the second support node are perfused with a solidifying medium.

[0006] Beneficial effect: By connecting the first support node and the second support node to achieve the connection between the pipe bodies, and by pouring a solidifying medium at the first support node and / or the second support node, after the solidifying medium is solidified, the bearing capacity of each support node of the catheter rack is improved, and the premature yielding and deformation at each support node can be delayed or even suppressed, avoiding the phenomenon of plastic deformation under the action of external force, so that each support node can better exert its supporting performance.

[0007] In an optional embodiment, any of the main pipes includes at least two equal-diameter pipes and at least one reducer, and the two adjacent equal-diameter pipes arranged close to the sea surface include a first equal-diameter pipe and a second equal-diameter pipe, the radial dimension of the first equal-diameter pipe is different from the radial dimension of the second equal-diameter pipe, and the two ends of the reducer arranged along its axial direction are respectively connected to the first equal-diameter pipe and the second equal-diameter pipe; wherein the radial dimension of the end of the reducer close to the first equal-diameter pipe is the same as the radial dimension of the first equal-diameter pipe, and the radial dimension of the end of the reducer close to the second equal-diameter pipe is the same as the radial dimension of the second equal-diameter pipe.

[0008] Beneficial effect: by making the radial dimensions of the first equal-diameter pipe body and the second equal-diameter pipe body in the main pipe different, making the radial dimension of the end of the reducer pipe body close to the first equal-diameter pipe body the same as the radial dimension of the first equal-diameter pipe body, and making the radial dimension of the end of the reducer pipe body close to the second equal-diameter pipe body the same as the radial dimension of the second equal-diameter pipe body, after completing the connection of the first equal-diameter pipe body, the reducer pipe body and the second equal-diameter pipe body, the different radial dimensions of the two equal-diameter pipe bodies help to reduce the overall weight of the assembled wind turbine duct frame, thereby reducing the bearing capacity requirements of the foundation, thereby reducing the construction difficulty and cost.

[0009] In an optional embodiment, in the first equal-diameter tube body and the second equal-diameter tube body, the radial dimension of the equal-diameter tube body close to the sea surface is greater than the radial dimension of the equal-diameter tube body far from the sea surface.

[0010] Beneficial effects: By making the radial dimension of the equal-diameter pipe body close to the sea surface larger than the radial dimension of the equal-diameter pipe body far from the sea surface, the pipe diameter of the upper part of the conductor frame can be reduced, thereby reducing the wind resistance at the top of the conductor frame and reducing the impact of the wind load on the conductor frame itself, thereby improving the overall stability of the conductor frame; at the same time, by reducing the pipe diameter at the top of the conductor frame, the amount of material used can be reduced, while ensuring the stability of the conductor frame, the utilization efficiency of the material can be improved and the cost can be reduced; in addition, the weight of the conductor frame itself can be reduced, thereby reducing the bearing capacity requirements of the foundation, thereby reducing the construction difficulty and cost.

[0011] In an optional embodiment, any of the main pipes further includes a third equal-diameter pipe body, which is installed at the end of the equal-diameter pipe body with a smaller radial dimension among the first equal-diameter pipe body and the second equal-diameter pipe body, which is away from the sea surface. A plurality of the third equal-diameter pipe bodies are provided, and the plurality of third equal-diameter pipe bodies are connected in sequence in the axial direction of the main pipe.

[0012] Beneficial effect: By adding multiple third equal-diameter tubes and setting the multiple third equal-diameter tubes at the ends of the equal-diameter tubes with smaller radial dimensions away from the sea surface, more uniform and stable support capacity can be provided, reducing the problem of emergency concentration caused by changes in tube diameter. At the same time, it helps to optimize the mechanical transmission path at the top of the conductor frame, so that when the top of the conductor frame is subjected to external force, it can better disperse the force to each supporting node, thereby improving the overall stability.

[0013] In an optional embodiment, among the first equal-diameter tube body, the second equal-diameter tube body and the third equal-diameter tube body, any one of the equal-diameter tube bodies is provided with a second supporting node.

[0014] Beneficial effect: By providing a second support node at each equal-diameter tube body, the load-bearing part after connection is located in the equal-diameter tube body. With this arrangement, when any part of the catheter frame is subjected to external force, the force can be evenly dispersed, thereby improving the stability and fatigue resistance of the catheter frame.

[0015] In an optional embodiment, any of the second supporting nodes includes at least one second connecting rod; in any of the main pipes, the equal-diameter pipe body at any height is fixed to the second connecting rod at the equal-diameter pipe body at a different height in another main pipe adjacent in the horizontal direction through the second connecting rod and the first supporting node.

[0016] Beneficial effects: By using a second connecting rod to connect two equal-diameter pipes at different heights in two adjacent main pipes, the formed conductor frame has multiple triangular structures, so that the conductor frame can maintain a more stable posture when subjected to external force, reducing shaking and tilting caused by factors such as wind. At the same time, by setting up cross-arranged first support nodes, the load borne by the conductor frame can be effectively shared, reducing the stress of a single main pipe, which helps to reduce the risk of damage caused by stress concentration and improve the overall bearing capacity of the conductor frame.

[0017] In an optional embodiment, in the first equal-diameter tube body, the second equal-diameter tube body, the third equal-diameter tube body and the variable-diameter tube body, two adjacent tube bodies have two end portions facing each other provided with inwardly recessed mounting grooves, and two adjacent accommodating grooves are enclosed to form a mounting hole; the assembled fan duct frame also includes a connecting piece, which is installed in the mounting hole, and the connecting piece is used to fix the two adjacent equal-diameter tube bodies.

[0018] Beneficial effect: by providing inwardly recessed installation grooves at the two ends of two adjacent pipe bodies that are close to each other and using a connecting piece to connect the two adjacent equal-diameter pipe bodies, the connection path of the connection can be extended, so that the connection relationship between the two adjacent pipe bodies after connection is more reliable, and the overall bearing capacity of the catheter rack is further improved; at the same time, by enclosing to form a mounting hole, and using a connecting piece to be installed in the mounting hole, it plays a positioning role, reduces the deviation of the connection between the two adjacent equal-diameter pipe bodies during the installation process, and can effectively improve the construction accuracy while facilitating construction.

[0019] In an optional embodiment, any of the first supporting nodes includes three first connecting rods, the three first connecting rods are arranged in an X shape, and the angle between any of the first connecting rods and an adjacent first connecting rod is an acute angle or an obtuse angle.

[0020] Beneficial effect: Since the horizontally arranged first connecting rods contribute little to the bearing capacity of the overall structure of the conductor frame and have little effect, the three first connecting rods at the first support node are arranged in an X shape, and the angle between two adjacent first connecting rods is an acute angle or an obtuse angle, thereby avoiding the appearance of horizontally arranged first connecting rods, which can reduce the workload of assembly and reduce material and construction costs.

[0021] In a second aspect, the present invention further provides a method for constructing an assembled fan duct frame, which is applied to the assembled fan duct frame of the first aspect, and the construction method comprises the following steps: S1: completing the manufacture of the first support node and the second support node in the factory, and completing the grouting process for the first support node and the second support node; S2: connecting each first support node with the corresponding second support node at the construction site; S3: completing the connection of two adjacent equal-diameter pipe bodies at the construction site.

[0022] Beneficial effect: Because the construction method of the assembled fan duct frame applies the assembled fan duct frame, it has the same effect as the assembled fan duct frame, and will not be repeated here.

[0023] In an optional implementation, step S3 includes: S301: placing the reducer tube between the first equal-diameter tube and the second equal-diameter tube; S302: fixing the first equal-diameter tube, the reducer tube and the second equal-diameter tube using a connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the specific implementation modes of the present invention, the drawings required for use in the description of the specific implementation modes will be briefly introduced below. Obviously, the drawings described below are some implementation modes of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 A three-dimensional view of an assembled fan duct frame provided by an embodiment of the present invention;

[0026] Figure 2 A schematic diagram of the structure after the second supporting node in the assembled fan duct frame provided by the embodiment of the present invention is filled with a solidifying medium;

[0027] Figure 3 A schematic diagram of the structure of a connector in an assembled fan duct frame provided by an embodiment of the present invention;

[0028] Figure 4 A schematic diagram of the structure of the assembled fan duct frame after the first supporting node is filled with a solidifying medium provided in an embodiment of the present invention.

[0029] Description of reference numerals:

[0030] 1. connecting rod group; 11. first supporting node; 111. first connecting rod;

[0031] 2. Main pipe body; 21. Second support node; 211. Second connecting rod; 22. First equal-diameter pipe body; 23. Second equal-diameter pipe body; 24. Reduced-diameter pipe body; 25. Third equal-diameter pipe body; 26. Mounting groove;

[0032] 3. Solidifying medium;

[0033] 4. Connecting piece; 41. Connecting surface;

[0034] 5. Column;

[0035] 6. Transition piece. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0037] In the description of the present application, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0038] The terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0039] In the description of the present application, unless otherwise specified, “plurality” means two or more.

[0040] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0041] As the foundation of the fan system, the fan duct frame has the advantages of stable and reliable structure, easy installation and convenient maintenance. In conventional solutions, the connection nodes of the duct frame are often made of pure steel, but due to the low rigidity of pure steel pipes, the main pipe of the duct frame is very likely to produce large plastic deformation under the load of external forces, and the overall failure of the duct frame occurs when the branch pipes do not play their role well.

[0042] To this end, in the present application, grouting is performed at the connection nodes, for example, a curable medium such as concrete is poured, so that the connection nodes are supported by the concrete, avoiding the phenomenon of plastic failure of the main pipe of the conductor rack, and allowing the mechanical properties of the branch pipe to be better exerted.

[0043] Combine the following Figures 1 to 4 , describing an embodiment of the present invention.

[0044] According to an embodiment of the present invention, in a first aspect, a fabricated fan duct frame is provided, comprising a connecting rod group 1 and a main pipe body 2 .

[0045] Specifically, if Figure 1 As shown, there are multiple groups of connecting rod groups 1, and any connecting rod group 1 includes a first supporting node 11 arranged crosswise; there are multiple main pipe bodies 2, and the multiple main pipe bodies 2 are arranged at intervals in the circumferential direction. Any main pipe body 2 is fixed to the adjacent main pipe body 2 by at least two groups of connecting rod groups 1 arranged at intervals along the axial direction of the main pipe body 2, and the node where the main pipe body 2 is connected to the connecting rod group 1 is the second supporting node 21; wherein the first supporting node 11 and / or the second supporting node 21 are poured with the solidifying medium 3.

[0046] By utilizing the technical solution of the present embodiment, the connection between the pipe bodies is achieved by connecting the first support node 11 and the second support node 21, and by pouring the solidifying medium 3 at the first support node 11 and / or the second support node 21, after the solidifying medium 3 is solidified, the bearing capacity of each support node of the catheter rack is improved, and the premature yielding and deformation at each support node can be delayed or even suppressed, avoiding the phenomenon of plastic deformation under the action of external force, so that each support node can better exert its supporting performance.

[0047] It can be explained that the above-mentioned solidifying medium 3 is preferably concrete.

[0048] By setting up in this way, by filling the tube with concrete, the hot spot stress concentration factor (SCF) at the tube node can be greatly reduced. The reduction of the hot spot stress coefficient means that under the same nominal stress, the support node provided by the present application has a lower hot spot stress, thereby greatly improving the fatigue performance. Therefore, in the present application, each support node has better mechanical properties and fatigue performance.

[0049] like Figure 1 As shown, any main pipe body 2 includes at least two equal-diameter pipe bodies and at least one variable-diameter pipe body 24 .

[0050] Specifically, since the equal-diameter tube body close to the sea surface is subjected to more concentrated force and is prone to failure, the two adjacent equal-diameter tube bodies arranged close to the sea surface include a first equal-diameter tube body 22 and a second equal-diameter tube body 23. At this time, the radial size of the first equal-diameter tube body 22 and the radial size of the second equal-diameter tube body 23 are different, and the two ends of the reducer tube body 24 arranged along its axial direction are respectively connected to the first equal-diameter tube body 22 and the second equal-diameter tube body 23; wherein the radial size of the end of the reducer tube body 24 close to the first equal-diameter tube body 22 is the same as the radial size of the first equal-diameter tube body 22, and the radial size of the end of the reducer tube body 24 close to the second equal-diameter tube body 23 is the same as the radial size of the second equal-diameter tube body 23.

[0051] By utilizing the technical solution of the present embodiment, the radial dimensions of the first equal-diameter pipe body 22 and the second equal-diameter pipe body 23 in the main pipe body 2 are made different, the radial dimension of the end of the reducer pipe body 24 close to the first equal-diameter pipe body 22 is made the same as the radial dimension of the first equal-diameter pipe body 22, and the radial dimension of the end of the reducer pipe body 24 close to the second equal-diameter pipe body 23 is made the same as the radial dimension of the second equal-diameter pipe body 23. After the first equal-diameter pipe body 22, the reducer pipe body 24 and the second equal-diameter pipe body 23 are connected, the different radial dimensions of the two equal-diameter pipe bodies help to reduce the overall weight of the assembled wind turbine duct frame, thereby reducing the bearing capacity requirements of the foundation, thereby reducing the construction difficulty and cost.

[0052] It can be explained that, in the assembled wind turbine duct frame provided in the present application, in the first equal-diameter tube body 22 and the second equal-diameter tube body 23, the radial size of the equal-diameter tube body close to the sea surface is larger than the radial size of the equal-diameter tube body far from the sea surface.

[0053] By utilizing the technical solution of the present embodiment, by making the radial dimension of the equal-diameter pipe body close to the sea surface larger than the radial dimension of the equal-diameter pipe body far from the sea surface, the pipe diameter of the upper part of the conductor rack can be reduced, thereby reducing the wind resistance at the top of the conductor rack and reducing the impact of the wind load on the conductor rack itself, thereby improving the overall stability of the conductor rack; at the same time, by reducing the pipe diameter at the top of the conductor rack, the amount of material used can be reduced, while ensuring the stability of the conductor rack, the utilization efficiency of the material can be improved and the cost can be reduced; in addition, the weight of the conductor rack itself can be reduced, thereby reducing the bearing capacity requirements of the foundation, thereby reducing the construction difficulty and cost.

[0054] Still Figure 1 As shown, any main pipe body 2 further includes a third equal-diameter pipe body 25 , which is installed at the end of the equal-diameter pipe body with a smaller radial size between the first equal-diameter pipe body 22 and the second equal-diameter pipe body 23 away from the sea surface.

[0055] It can be explained that in the present application, a plurality of third equal-diameter pipe bodies 25 are provided, and the plurality of third equal-diameter pipe bodies 25 are sequentially connected in the axial direction of the main pipe body 2 .

[0056] By utilizing the technical solution of the present embodiment, by adding a plurality of third equal-diameter tubes 25 and arranging the plurality of third equal-diameter tubes 25 at the ends of the equal-diameter tubes with smaller radial dimensions that are away from the sea surface, a more uniform and stable support capacity can be provided, reducing the problem of emergency concentration caused by changes in tube diameters. At the same time, it helps to optimize the mechanical transmission path at the top of the conductor rack, so that when the top of the conductor rack is subjected to external forces, the force can be better dispersed to each supporting node, thereby improving the overall stability.

[0057] Still Figure 1 As shown, in the first equal-diameter tube body 22 , the second equal-diameter tube body 23 and the third equal-diameter tube body 25 , any one of the equal-diameter tube bodies is provided with a second support node 21 .

[0058] By utilizing the technical solution of this embodiment, by providing a second support node 21 at each equal-diameter tube body, the load-bearing part after connection is located in the equal-diameter tube body. With this arrangement, when any part of the catheter frame is subjected to external force, the force can be evenly dispersed, thereby improving the stability and fatigue resistance of the catheter frame.

[0059] like Figure 1 and Figure 2As shown, any second supporting node 21 includes at least one second connecting rod 211; in any main pipe 2, an equal-diameter pipe body at any height is fixed to a second connecting rod 211 at an equal-diameter pipe body at a different height in another main pipe 2 adjacent in the horizontal direction through the second connecting rod 211 and the first supporting node 11.

[0060] By utilizing the technical solution of the present embodiment, two equal-diameter pipe bodies at different heights in two adjacent main pipe bodies 2 are connected by using a second connecting rod 211, so that the formed conductor frame has multiple triangular structures, so that the conductor frame can maintain a more stable posture when subjected to external force, and reduce shaking and tilting caused by factors such as wind. At the same time, by setting up cross-arranged first support nodes 11, the load borne by the conductor frame can be effectively shared, and the stress of a single main pipe body 2 can be reduced, which helps to reduce the risk of damage caused by stress concentration and improve the overall bearing capacity of the conductor frame.

[0061] It can be explained that, in order to reduce the number of installation nodes in the present application, only two adjacent equal-diameter pipe bodies at different heights in two adjacent main pipe bodies 2 need to be connected.

[0062] like Figure 1 and Figure 2 As shown, in the first equal-diameter tube body 22, the second equal-diameter tube body 23, the third equal-diameter tube body 25 and the variable-diameter tube body 24, the two ends of the two adjacent tube bodies that are close to each other are provided with inwardly recessed mounting grooves 26, and the two adjacent accommodating grooves are enclosed to form a mounting hole; the assembled fan duct frame also includes a connecting member 4, which is installed in the mounting hole, and the connecting member 4 is used to fix the two adjacent equal-diameter tube bodies.

[0063] By utilizing the technical solution of the present embodiment, by providing inwardly recessed mounting grooves 26 at both ends of two adjacent pipe bodies that are close to each other and connecting two adjacent equal-diameter pipe bodies using a connector 4, the connection path at the connection can be extended, making the connection relationship between the two adjacent pipe bodies after connection more reliable, and further improving the overall bearing capacity of the catheter rack; at the same time, by enclosing to form a mounting hole, and using the connector 4 to be installed in the mounting hole, a positioning function is played, reducing the deviation at the connection of two adjacent equal-diameter pipe bodies during the installation process, and effectively improving the construction accuracy while facilitating the construction.

[0064] By utilizing the technical solution of the present embodiment, since the horizontally arranged first connecting rods 111 contribute little to the bearing capacity of the overall structure of the conductor frame and have little effect, the three first connecting rods 111 at the first supporting node 11 are arranged in an X shape, and the angle between two adjacent first connecting rods 111 is made acute or obtuse, thereby avoiding the appearance of horizontally arranged first connecting rods 111, thereby reducing the workload of assembly and reducing material and construction costs.

[0065] It should be noted that the number of the first connecting rods 111 at the first supporting node 11 provided in the present application is not specifically limited, for example, it can be three or more.

[0066] As one implementation manner, any first supporting node 11 includes three first connecting rods 111 , the three first connecting rods 111 are arranged in an X-shape or a K-shape, and the angle between any first connecting rod 111 and the adjacent first connecting rod 111 is an acute angle or an obtuse angle.

[0067] It should be noted that, in this embodiment, among the three first connecting rods 111, the lengths of two first connecting rods 111 along their axial direction may be the same or different, and it is sufficient that the lengths of these two first connecting rods 111 along their axial direction are smaller than the length of the third first connecting rod 111 along its axial direction. At this time, two shorter first connecting rods 111 are installed on the longer first connecting rod 111, so that the three first connecting rods 111 are arranged in an X-shape or a K-shape.

[0068] Preferably, if Figure 1 and Figure 4 As shown, the three first connecting rods 111 are arranged in an X shape.

[0069] As a second implementation, there may be four first connecting rods 111 , and in this case, the lengths of the four first connecting rods 111 along their axial directions are consistent, so that the four first connecting rods 111 are arranged in an X-shape or a K-shape.

[0070] It can be explained that, in the present application, the connecting member 4 is also used to complete the connection between the first connecting rod 111 and the second connecting rod 211 .

[0071] Preferably, in the present application, an inwardly recessed mounting groove 26 is also provided at the end of the first connecting rod 111 close to the second connecting rod 211 and at the end of the second connecting rod 211 close to the first connecting rod 111, so that the two mounting grooves 26 enclose a mounting hole for mounting the connecting member 4.

[0072] Further, in the present application, the position of the connecting member 4 for connection is Figure 3 The connecting surface 41 shown in the figure has its outer edge edge and the inner edge edge of the mounting hole welded and fixed.

[0073] Furthermore, in the above embodiment, when the connector 4 is installed, welding is preferred.

[0074] It can be explained that if Figure 1 and Figure 4 As shown, during the prefabrication in the factory, the solidifying medium 3 is poured into the first connecting rod 111 at the first supporting node 11 .

[0075] Similarly, if Figure 1 and Figure 2 As shown, during the prefabrication in the factory, the solidifying medium 3 is poured into the equal-diameter pipe body and the second connecting rod 211 at each second supporting node 21 .

[0076] like Figure 1 As shown, the assembled fan duct frame provided in the present application further includes a column 5 and a transition piece 6 . In this case, a column 5 is provided at the bottom of each main pipe body 2 and is connected to the column 5 through the transition piece 6 .

[0077] Specifically, since each main pipe body 2 is arranged at an angle during installation, the upper end face of the transition piece 6 is conformed to the bottom end face of the main pipe body 2, that is, the upper end face of the transition piece 6 is also arranged at an angle, and the lower end face of the transition piece 6 is arranged horizontally and connected to the top end face of the column 5.

[0078] According to an embodiment of the present invention, on the other hand, a method for constructing an assembled fan duct frame is provided, which is applied to the assembled fan duct frame of the previous aspect.

[0079] At this time, the construction method of the assembled wind turbine duct frame includes the following steps: S1: completing the manufacturing of the first support node 11 and the second support node 21 in the factory, and completing the grouting process for the first support node 11 and the second support node 21; S2: connecting each first support node 11 with the corresponding second support node 21 at the construction site; S3: completing the connection of two adjacent equal-diameter pipe bodies at the construction site.

[0080] The technical solution of this embodiment is used because the construction method of the assembled fan duct frame applies the assembled fan duct frame and has the same effect as the assembled fan duct frame, which will not be described in detail here.

[0081] It can be explained that step S1 includes: opening grouting holes and overflow holes in each equal-diameter pipe body, and closing both end faces of each equal-diameter pipe body along its axial direction, so that grouting is stopped when it is found that the grouting is full of concrete during the grouting process.

[0082] It can be explained that step S3 includes: S301: placing the reducer tube 24 between the first equal-diameter tube 22 and the second equal-diameter tube 23; S302: fixing the first equal-diameter tube 22, the reducer tube 24 and the second equal-diameter tube 23 using the connector 4.

[0083] Furthermore, step S3 also includes: S303: using a connector 4 to connect two adjacent third equal-diameter pipes 25 .

[0084] Of course, step S3 also includes: S304: using the connecting piece 4 to connect the first equal-diameter tube 22 and the second equal-diameter tube 23 with the smaller radial dimension to the third equal-diameter tube 25 .

[0085] In the present application, the radial dimension of the second equal-diameter tube body 23 is smaller than the radial dimension of the first equal-diameter tube body 22 , therefore, step S304 is: connecting the second equal-diameter tube body 23 with the third equal-diameter tube body 25 using the connector 4 .

[0086] In addition, step S2 includes S201 : connecting the first connecting rod 111 and the second connecting rod 211 using the connecting member 4 .

[0087] It can be explained that the connection method between the above-mentioned equal-diameter pipes or between the equal-diameter pipes and the variable-diameter pipe 24 is preferably welding, such as fillet welding or butt welding.

[0088] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. An assembled fan duct frame, characterized in that: include: A connecting rod group (1), wherein a plurality of connecting rod groups (1) are provided, and any connecting rod group (1) comprises cross-arranged first supporting nodes (11); A main pipe (2), wherein the main pipe (2) is provided with a plurality of main pipes (2), the plurality of main pipes (2) are arranged at intervals in the circumferential direction, any one of the main pipes (2) is fixed to an adjacent one of the main pipes (2) by at least two groups of connecting rods (1) arranged at intervals along the axial direction of the main pipe (2), and the node where the main pipe (2) is connected to the connecting rod group (1) is a second support node (21); Wherein, the first supporting node (11) and / or the second supporting node (21) are perfused with a solidifying medium (3).

2. The assembled fan duct frame according to claim 1, characterized in that: Any of the main pipes (2) comprises at least two equal-diameter pipes and at least one variable-diameter pipe (24); the two adjacent equal-diameter pipes arranged close to the sea surface comprise a first equal-diameter pipe (22) and a second equal-diameter pipe (23); the radial dimension of the first equal-diameter pipe (22) is different from the radial dimension of the second equal-diameter pipe (23); and the two ends of the variable-diameter pipe (24) arranged along the axial direction thereof are respectively connected to the first equal-diameter pipe (22) and the second equal-diameter pipe (23); The radial dimension of the end of the reducer tube (24) close to the first equal-diameter tube (22) is the same as the radial dimension of the first equal-diameter tube (22), and the radial dimension of the end of the reducer tube (24) close to the second equal-diameter tube (23) is the same as the radial dimension of the second equal-diameter tube (23).

3. The assembled fan duct frame according to claim 2, characterized in that: In the first equal-diameter pipe body (22) and the second equal-diameter pipe body (23), the radial dimension of the equal-diameter pipe body close to the sea surface is greater than the radial dimension of the equal-diameter pipe body far from the sea surface.

4. The assembled fan duct frame according to claim 2 or 3, characterized in that: Any of the main pipes (2) further comprises a third equal-diameter pipe (25), wherein the third equal-diameter pipe (25) is installed at the end of the equal-diameter pipe with a smaller radial dimension in the first equal-diameter pipe (22) and the second equal-diameter pipe (23) and is away from the sea surface, and a plurality of the third equal-diameter pipes (25) are provided, and the plurality of third equal-diameter pipes (25) are connected in sequence in the axial direction of the main pipe (2).

5. The assembled fan duct frame according to claim 4, characterized in that: In the first equal-diameter tube body (22), the second equal-diameter tube body (23) and the third equal-diameter tube body (25), any one of the equal-diameter tube bodies is provided with a second supporting node (21).

6. The assembled fan duct frame according to claim 5, characterized in that: Any of the second support nodes (21) comprises at least one second connecting rod (211); In any one of the main pipes (2), the equal-diameter pipes at any height are fixed to the second connecting rod (211) at the equal-diameter pipes at different heights in another main pipe (2) adjacent in the horizontal direction via the second connecting rod (211) and the first supporting node (11).

7. The assembled fan duct frame according to claim 4, characterized in that: In the first equal-diameter tube body (22), the second equal-diameter tube body (23), the third equal-diameter tube body (25) and the variable-diameter tube body (24), two adjacent tube bodies have two end portions facing each other provided with inwardly recessed mounting grooves (26), and the two adjacent receiving grooves enclose each other to form a mounting hole; The assembled fan duct frame also includes a connecting piece (4), which is installed in the installation hole, and the connecting piece (4) is used to fix two adjacent equal-diameter pipe bodies.

8. The assembled fan duct frame according to any one of claims 1 to 3, characterized in that: Any of the first supporting nodes (11) comprises three first connecting rods (111), the three first connecting rods (111) are arranged in an X shape, and the angle between any of the first connecting rods (111) and an adjacent first connecting rod (111) is an acute angle or an obtuse angle.

9. A method for constructing an assembled fan duct frame, applied to the assembled fan duct frame according to any one of claims 1 to 8, characterized in that: The construction method comprises the following steps: S1: completing the manufacturing of the first supporting node (11) and the second supporting node (21) in a factory, and completing the grouting process for the first supporting node (11) and the second supporting node (21); S2: Connecting each first support node (11) to the corresponding second support node (21) at the construction site; S3: Complete the connection of two adjacent equal-diameter pipes at the construction site.

10. The method for constructing an assembled fan duct frame according to claim 9, characterized in that: Step S3 includes: S301: placing a variable diameter tube body (24) between a first equal diameter tube body (22) and a second equal diameter tube body (23); S302: Using a connecting piece (4) to fix the first equal-diameter pipe body (22), the reducer pipe body (24) and the second equal-diameter pipe body (23).

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