Cooling tower fan arrangement

Abstract

Cooling tower fan device relates to the technical field of cooling tower, including splicing setting air duct, the inner wall of air duct is provided with annular support table horizontally, annular support table is provided with main support frame along the diameter direction, both ends of main support frame are connected with annular support table through main extension structure, opposite two side walls of main support frame are respectively detachable connected with auxiliary support frame along the diameter direction, the end of auxiliary support frame is connected with annular support table through auxiliary extension structure, the middle position of main support frame is fixed with fan seat.The utility model solves the problem that the fan needs to be installed into the air duct in the installation of the fan on the cooling tower in the traditional technology, because the diameter of the air duct of different types of cooling tower is different, so that the fan support needs to be made in a fixed size, which reduces the universality of the fan support.

Description

Technical Field

[0001] This utility model relates to the field of cooling tower technology, and more specifically to a cooling tower fan device. Background Technology

[0002] A wind turbine support device is a structure used to bear the load of the wind turbine, motor and gearbox, and also has the function of passage and maintenance.

[0003] Current wind turbine support devices use a horizontal truss structure in the planar part, with the lower part connected by short columns and bolts. Ordinary guardrails are installed on both sides in the vertical direction. Due to the large span of the support structure, the wind turbine rotation causes vibration, and the wind turbine support structure is not stiff enough, which often causes excessive vibration of the wind turbine bridge structure, affecting the safe operation of the equipment.

[0004] A prior art patent with publication number CN222334042U discloses a solution comprising a planar frame assembly, a support column assembly, and a facade support assembly. The planar frame assembly is rectangular and internally welded with an X-shaped support assembly for support and a wind turbine mounting beam located at the midpoint of the planar frame assembly's length. The support column assembly includes several columns arranged perpendicular to the plane of the planar frame assembly. One end of each column is connected to the planar frame assembly, and the other end is connected to an embedded part. The facade support assembly is connected to the columns and, in conjunction with the columns, forms a triangular support structure. This wind turbine support device effectively improves the overall spatial rigidity of the wind turbine support device, thereby enhancing its ability to resist equipment vibration and ensuring safe operation of the equipment and safe use of the structure.

[0005] As existing devices are used, the shortcomings of this technology have gradually become apparent, mainly in the following aspects:

[0006] First, when installing fans on existing cooling towers, the fans need to be installed inside the air duct. Since the diameter of the air duct varies for different types of cooling towers, it is necessary to manufacture fan brackets according to specific models, which reduces the versatility of the fan brackets.

[0007] Secondly, the existing ductwork, due to its structural limitations, is not convenient for supporting and installing the fan bracket, which affects the assembly efficiency of the fan.

[0008] As can be seen from the above, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0009] To address the shortcomings of existing technologies, this utility model provides a cooling tower fan device to solve the problem that in traditional cooling tower installation, the fan needs to be installed inside the air duct. Since the diameter of the air duct varies for different types of cooling towers, it is necessary to manufacture fan brackets according to specific models, which reduces the versatility of the fan brackets.

[0010] To achieve the above objectives, the present invention provides the following technical solution.

[0011] A cooling tower fan unit includes a spliced ​​air duct. An annular support platform is horizontally provided on the inner wall of the air duct. A main support frame is horizontally provided on the annular support platform along the diameter direction. The two ends of the main support frame are respectively connected to the annular support platform through main extension structures. A secondary support frame is detachably connected to the opposite side walls of the main support frame along the diameter direction. The ends of the secondary support frames are respectively connected to the annular support platform through secondary extension structures. A fan base is fixedly connected to the middle position of the main support frame.

[0012] As an optimized solution, the duct includes a circular cylinder formed by connecting four arc-shaped cylinders, with adjacent arc-shaped cylinders fixedly connected by a connecting structure.

[0013] As an optimized solution, the main support frame includes two main channel steels arranged side by side, with the open ends of the two main channel steels facing outwards, and several main connecting rods fixedly connected side by side between the relative inner walls of the two main channel steels.

[0014] As an optimized solution, the main extension structure includes a main connecting plate, on which a main extension plate is vertically fixed to each of the main channel steels. The main extension plate is provided with a main elongated sliding hole. The bottom plate of the main channel steel is provided with a number of main fixing holes in parallel along its extension direction. A number of main adjusting bolt assemblies are connected in parallel between the main fixing holes and the main elongated sliding holes.

[0015] As an optimized solution, the main connecting plate is fixed to the annular support platform by a main fixing bolt assembly arranged in parallel.

[0016] As an optimized solution, the secondary support frame includes two parallel secondary channel steels with their open ends facing outwards, and several secondary connecting rods are fixedly connected in parallel between the relative inner walls of the two secondary channel steels.

[0017] As an optimized solution, the secondary extension structure includes a secondary connecting plate, on which a secondary extension plate is vertically fixed to each of the secondary channel steels. The secondary extension plate is provided with a secondary elongated sliding hole. The bottom plate of the secondary channel steel is provided with a number of secondary fixing holes arranged in parallel along its extension direction. A number of secondary adjusting bolt assemblies are arranged in parallel between the secondary fixing holes and the secondary elongated sliding holes.

[0018] As an optimized solution, the secondary connecting plate is fixed to the annular support platform by a secondary fixing bolt assembly arranged in parallel.

[0019] As an optimized solution, the other end of the secondary channel steel is connected to the middle position of the base plate of the main channel steel via a connecting bolt assembly.

[0020] As an optimized solution, the connection structure includes connecting plates that are vertically fixed to the mating surfaces of the arc-shaped cylinder, and the two connecting plates are fixed together by a side bolt assembly.

[0021] As an optimized solution, one of the connecting plates has a covering section that covers the adjacent connecting plate, which is vertically fixed to the outer end of the connecting plate.

[0022] As an optimized solution, each of the arc-shaped cylinders is horizontally fixed to the bottom of an arc-shaped flange, and the four arc-shaped flanges are spliced ​​together to form a circle.

[0023] As an optimized solution, the two auxiliary support frames are arranged in a cross shape with the main support frame in the top view.

[0024] Compared with the prior art, the beneficial effects of this utility model are:

[0025] The ventilation duct consists of a circular cylinder formed by four curved cylinders joined together, which facilitates transportation and on-site assembly upon arrival at the installation site, making it convenient and quick.

[0026] The inner wall of the ventilation duct is equipped with a horizontal annular support platform, which is used to support the main support frame and the secondary support frame, thus providing support points.

[0027] Auxiliary support frames are installed on both sides of the main support frame, forming a cross shape with the main support frame in the top view, thereby improving the stability of the support.

[0028] The end of the main support frame is connected to the annular support platform through the main extension structure, which allows the length of the main support frame to be extended using the main extension structure, so as to meet the fixed use of wind ducts of different diameters. This overcomes the problem that traditional technology still requires customized wind turbine brackets of specific models, improves the versatility of the wind turbine bracket, and allows the wind turbine motor to be installed through the wind turbine base. Attached Figure Description

[0029] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0030] Figure 1 This is a top view of the structure of this utility model;

[0031] Figure 2 This is a schematic diagram of the structure of the ventilation duct of this utility model.

[0032] In the diagram: 1-Arc-shaped cylinder; 2-Annular support platform; 3-Main channel steel; 4-Main connecting plate; 5-Main extension plate; 6-Main elongated sliding hole; 7-Main adjusting bolt assembly; 8-Main fixing bolt assembly; 9-Main connecting rod; 10-Connecting plate; 11-Covering section; 12-Side bolt assembly; 13-Secondary channel steel; 14-Secondary connecting plate; 15-Secondary extension plate; 16-Secondary elongated sliding hole; 17-Secondary adjusting bolt assembly; 18-Secondary fixing bolt assembly; 19-Fan base; 20-Arc-shaped flange; 21-Connecting bolt assembly. Detailed Implementation

[0033] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0034] like Figure 1 and Figure 2 As shown, the cooling tower fan unit includes a spliced ​​air duct. An annular support platform 2 is horizontally provided on the inner wall of the air duct. A main support frame is horizontally provided on the annular support platform 2 along the diameter direction. The two ends of the main support frame are respectively connected to the annular support platform 2 through a main extension structure. A secondary support frame is detachably connected to the opposite side walls of the main support frame along the diameter direction. The ends of the secondary support frames are respectively connected to the annular support platform 2 through secondary extension structures. A fan base 19 is fixedly connected to the middle position of the main support frame.

[0035] The ventilation duct includes a circular cylinder formed by connecting four arc-shaped cylinders 1, with adjacent arc-shaped cylinders 1 fixedly connected by a connecting structure.

[0036] The main support frame includes two parallel main channel steels 3, with the open ends of the two main channel steels 3 facing outwards. Several main connecting rods 9 are fixedly connected in parallel between the relative inner walls of the two main channel steels 3, and the connecting rods are used to strengthen the connection stability between the channel steels.

[0037] The main extension structure includes a main connecting plate 4, on which a main extension plate 5 is vertically fixed to each main channel steel 3. A main elongated sliding hole 6 is opened on the main extension plate 5. Several main fixing holes are opened in parallel along the extension direction of the bottom plate of the main channel steel 3. Several main adjusting bolt assemblies 7 are connected in parallel between the main fixing holes and the main elongated sliding holes 6.

[0038] The elongated sliding hole allows for the sliding extension plate to be easily fixed to the channel steel base plate using the main adjusting bolt.

[0039] The main connecting plate 4 is fixed to the annular support platform 2 by the main fixing bolt assembly 8 arranged in parallel.

[0040] The secondary support frame includes two parallel secondary channel steels 13, with the open ends of the two secondary channel steels 13 facing outwards, and several secondary connecting rods are fixedly connected in parallel between the relative inner walls of the two secondary channel steels 13.

[0041] The secondary extension structure includes a secondary connecting plate 14. A secondary extension plate 15 is vertically fixed to each secondary channel steel 13 on the secondary connecting plate 14. A secondary elongated sliding hole 16 is provided on the secondary extension plate 15. A number of secondary fixing holes are provided in parallel along the extension direction on the bottom plate of the secondary channel steel 13. A number of secondary adjusting bolt assemblies 17 are connected in parallel between the secondary fixing holes and the secondary elongated sliding holes 16.

[0042] The secondary connecting plate 14 is fixed to the annular support platform 2 by the secondary fixing bolt assembly 18 arranged in parallel.

[0043] The other end of the secondary channel steel 13 is connected to the middle position of the base plate of the main channel steel 3 via the connecting bolt assembly 21, wherein the thickness of the secondary channel steel 13 is less than the thickness of the main channel steel 3.

[0044] The connection structure includes connecting plates 10 that are vertically fixed to the mating surfaces of the arc-shaped cylinder 1, and the two connecting plates 10 are fixed together by a side bolt assembly 12.

[0045] One of the connecting plates 10 has a covering section 11 that covers the adjacent connecting plate 10, which is fixed vertically to the outer end of the connecting plate 10 to achieve positioning and ensure the coaxiality between the two arc-shaped cylinders 1.

[0046] Each arc-shaped cylinder 1 has an arc-shaped flange 20 horizontally fixed to its bottom. The four arc-shaped flanges 20 are spliced ​​together to form a circle. The arc-shaped flanges 20 facilitate the fixing of the air duct to the top of the cooling tower.

[0047] The two auxiliary support frames are arranged in a cross shape with the main support frame when viewed from above.

[0048] The aforementioned structure includes bolt holes at all points where bolt assemblies are used for connection.

[0049] The working principle of this device is as follows:

[0050] The ventilation duct includes a circular cylinder formed by connecting four arc-shaped cylinders 1, which facilitates transportation and on-site assembly upon arrival at the installation site, making it convenient and quick.

[0051] The inner wall of the ventilation duct is provided with a horizontal annular support platform 2, which is used to support the main support frame and the auxiliary support frame, thus providing support points.

[0052] Auxiliary support frames are installed on both sides of the main support frame, forming a cross shape with the main support frame in the top view, thereby improving the stability of the support.

[0053] The end of the main support frame is connected to the annular support platform 2 through the main extension structure, which enables the length of the main support frame to be extended by the main extension structure, so as to meet the fixed use of wind ducts of different diameters. This overcomes the problem that the traditional technology still requires the customization of wind turbine brackets by model, and improves the versatility of wind turbine brackets. The motor of the wind turbine is installed through the wind turbine base 19.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A cooling tower fan unit, characterized in that: The system includes a spliced ​​duct, with a horizontally arranged annular support platform (2) on the inner wall of the duct. The annular support platform (2) has a main support frame arranged horizontally along the diameter direction. The two ends of the main support frame are connected to the annular support platform (2) through a main extension structure. The opposite side walls of the main support frame are detachably connected to secondary support frames along the diameter direction. The ends of the secondary support frames are connected to the annular support platform (2) through secondary extension structures. A fan base (19) is fixedly connected to the middle position of the main support frame.

2. The cooling tower fan device according to claim 1, characterized in that: The ventilation duct includes a circular cylinder formed by connecting four arc-shaped cylinders (1), with adjacent arc-shaped cylinders (1) fixedly connected by a connecting structure.

3. The cooling tower fan device according to claim 1, characterized in that: The main support frame includes two parallel main channel steels (3), with the open ends of the two main channel steels (3) facing outwards, and several main connecting rods (9) are fixedly connected in parallel between the relative inner walls of the two main channel steels (3).

4. The cooling tower fan device according to claim 3, characterized in that: The main extension structure includes a main connecting plate (4), on which a main extension plate (5) is vertically fixed to each of the main channel steels (3). The main extension plate (5) is provided with a main elongated sliding hole (6). The bottom plate of the main channel steel (3) is provided with a number of main fixing holes in parallel along its extension direction. A number of main adjusting bolt assemblies (7) are connected in parallel between the main fixing holes and the main elongated sliding holes (6). The main connecting plate (4) is fixed to the annular support platform (2) by the main fixing bolt assemblies (8) arranged in parallel.

5. The cooling tower fan device according to claim 3, characterized in that: The secondary support frame includes two parallel secondary channel steels (13), with the open ends of the two secondary channel steels (13) facing outwards, and several secondary connecting rods are fixedly connected in parallel between the relative inner walls of the two secondary channel steels (13).

6. The cooling tower fan device according to claim 5, characterized in that: The secondary extension structure includes a secondary connecting plate (14), on which a secondary extension plate (15) is vertically fixed to each of the secondary channel steels (13). The secondary extension plate (15) is provided with a secondary elongated sliding hole (16). The bottom plate of the secondary channel steel (13) is provided with a number of secondary fixing holes in parallel along its extension direction. A number of secondary adjusting bolt assemblies (17) are connected in parallel between the secondary fixing holes and the secondary elongated sliding holes (16). The secondary connecting plate (14) is fixed to the annular support platform (2) by the parallel secondary fixing bolt assemblies (18).

7. The cooling tower fan device according to claim 6, characterized in that: The other end of the secondary channel steel (13) is connected to the middle position of the bottom plate of the main channel steel (3) via a connecting bolt assembly (21).

8. The cooling tower fan device according to claim 2, characterized in that: The connection structure includes connecting plates (10) that are vertically fixed to the mating surfaces of the arc-shaped cylinder (1), and the two connecting plates (10) are fixed together by a side bolt assembly (12).

9. The cooling tower fan device according to claim 8, characterized in that: One of the connecting plates (10) has a covering section (11) that covers the adjacent connecting plate (10) vertically fixed to its outer end.

10. The cooling tower fan device according to claim 9, characterized in that: Each of the arc-shaped cylinders (1) is horizontally fixed to the bottom of an arc-shaped flange (20), and the four arc-shaped flanges (20) are arranged in a circular shape after being spliced ​​together.

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