Tower group structure of dry cooling tower

Abstract

The utility model provides a dry type cooling tower group structure which comprises a steel structure tower frame, a plurality of cooling tower units, a heat exchanger and a circulating water inlet and outlet pipe, and the plurality of cooling tower units are arranged in the steel structure tower frame; the heat exchangers are arranged on the two sides of the air inlet face of the steel structure tower, and a water inlet and a water outlet of each heat exchanger are connected with the circulating water inlet and outlet pipe. The steel structure tower comprises a plurality of first stand columns and is fixed to the ground through a concrete foundation. A large-span design is adopted between every two adjacent first stand columns. The cross beams are transversely arranged on the first stand columns in parallel. According to the steel structure tower, the large-span design is adopted, the internal structure of the tower is reduced, the use amount of parts is reduced, the material cost and weight are reduced, installation and maintenance are easier and more convenient, manpower is reduced, and the installation and operation and maintenance cost is reduced; and meanwhile, the overall ventilation resistance is reduced, the operation air inlet efficiency of the fan is improved, and then the cooling efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of cooling tower technology, specifically to a dry cooling tower group structure. Background Technology

[0002] To meet the requirements of strength, stability, and manufacturing and installation, the spacing between the columns on the end face or windward side of the steel structure tower of a conventional steel dry cooling tower is designed to be relatively small, generally not exceeding 2.4m.

[0003] Smaller spacing between end faces or windward columns means more support points. Denseer support points can improve the overall structural stiffness and stability, reducing deformation under load, especially when subjected to wind or seismic loads. However, denser support points also have some disadvantages: 1. Denseer support points require more material, increasing cost and weight; 2. Excessive internal supports may limit the effective use of internal space, affecting maintenance and repair work; 3. More support structures increase airflow resistance, leading to reduced cooling efficiency.

[0004] Therefore, how to ensure the rigidity and stability of the overall structure while increasing the spacing between the end columns of the steel tower is one of the technical problems that urgently need to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of this utility model is to overcome the defects of the prior art and provide a dry cooling tower group structure that can solve the problems of high cost and weight, difficult maintenance and high air flow resistance caused by the small spacing between the end face or windward face of the steel structure tower in the prior art.

[0006] To achieve the above and other objectives, this utility model is implemented through the following technical solution: This utility model proposes a dry cooling tower group structure, including a steel structure tower frame, cooling tower units, heat exchangers, and circulating water inlet and outlet pipes. Multiple cooling tower units are arranged within the steel structure tower frame. The heat exchangers are arranged on both sides of the air inlet side of the steel structure tower frame, and their inlet and outlet ports are connected to the circulating water inlet and outlet pipes. The steel structure tower frame includes multiple first columns, fixed to the ground by concrete foundations; and multiple horizontal beams, arranged horizontally and parallel to each other on the multiple first columns.

[0007] In one embodiment, the spacing between two adjacent first columns on the end face or air inlet face of the steel structure tower is equal, and the spacing is equal to or greater than 4.8 meters.

[0008] In one embodiment, the first column is first connected to the foundation short column of the concrete foundation by anchor bolts, shear connectors and leveling nuts, and then fixed by pouring fine stone concrete.

[0009] In one embodiment, each of the cooling tower units operates independently and includes a duct, a fan, and a motor; each cooling tower unit is separated by a maintenance panel.

[0010] In one embodiment, at least one second column is provided between two adjacent first columns to support the maintenance panel.

[0011] In one embodiment, when only one second column is provided between two adjacent first columns, the second columns and the first columns are arranged at equal intervals; when multiple second columns are provided between two adjacent first columns, the multiple second columns between two adjacent first columns are arranged at equal intervals.

[0012] In one embodiment, the steel structure tower below the wind tunnel is provided with diagonally arranged tie rods.

[0013] In one embodiment, diagonal bracing is provided in a grid formed by two adjacent first columns and two adjacent crossbeams.

[0014] In one embodiment, the heat exchangers are arranged in a W-shape on the air inlet side of the steel structure tower, and the arrangement angle between the heat exchangers is 50°~60°.

[0015] In one embodiment, the bottom support of the heat exchanger is fixed by a concrete foundation, and the middle and upper parts are fixedly connected to the steel structure tower by multiple layers of beams.

[0016] In one embodiment, an inspection door and a staircase are provided on the wall panel of the end face of the steel structure tower.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The steel structure tower of this utility model adopts a large span design, which reduces the internal structure of the tower and the amount of parts used. This not only reduces material costs and weight, but also makes installation and maintenance simpler, reduces labor, and lowers installation and operation and maintenance costs.

[0019] 2. The steel structure tower of this utility model adopts a large span design, which reduces the internal structure of the tower, thereby reducing the overall ventilation resistance, improving the air intake efficiency of the fan, and thus improving the cooling efficiency.

[0020] 3. The steel structure tower of this utility model adopts a large span and large steel material design, and uses a concrete foundation to fix the first column of the large steel material, which makes the large steel material structure better under stress and the tower body more stable, and can be used in harsh geological environments.

[0021] 4. The maintenance panel design of this utility model can ensure that each cooling tower operates independently and prevents air leakage;

[0022] 5. The design of the second column of this utility model can support the maintenance panel and ensure that the maintenance panel can meet the strength requirements to withstand negative pressure when the fan is running;

[0023] 6. The design of the diagonal tie rod in this utility model can improve the overall structural support strength;

[0024] 7. The heat exchanger of this utility model adopts a W-shaped arrangement, which can greatly increase the effective contact area between the heat exchanger and the dry cold air compared with the straight arrangement, thereby significantly improving the heat exchange efficiency of the cooling tower.

[0025] 8. The steel structure tower and heat exchanger of this utility model adopt a multi-layer connection method to ensure the stability of the heat exchanger;

[0026] 9. The inspection door and staircase design of this utility model can facilitate the maintenance of dry cooling tower group structures. Attached Figure Description

[0027] Figure 1 The diagram shown is a schematic representation of the air inlet surface of a dry cooling tower group structure according to this utility model.

[0028] Figure 2 The diagram shown is a schematic end view of a dry cooling tower group structure according to this utility model.

[0029] Figure 3 The diagram shows a steel structure tower with a second column in this utility model.

[0030] Figure 4 The diagram shown is a schematic of a steel structure tower with diagonal bracing in this utility model.

[0031] Figure 5 The diagram shown is a top view of a dry cooling tower group structure according to this utility model.

[0032] Figure 6 The diagram shows the fixing method of the first column and the concrete foundation in this utility model.

[0033] In the diagram: 10. Steel structure tower; 11. First column; 111. Base plate; 12. Horizontal beam; 13. Concrete foundation; 131. Foundation short column; 132. Anchor bolt; 133. Shear connector; 134. Leveling nut; 135. Fine aggregate concrete; 14. Second column; 15. Diagonal tie rod; 16. Staircase; 20. Cooling tower unit; 21. Air duct; 22. Fan; 23. Motor; 24. Maintenance panel; 30. Heat exchanger; 40. Circulating water inlet and outlet pipes. Detailed Implementation

[0034] Please see the appendix Figures 1-6 The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0035] It should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings of this specification are only used to complement the content disclosed in the specification for those skilled in the art to understand and read, and are not intended to limit the conditions under which this utility model can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0036] In this invention, the serial numbers assigned to components, such as "first," "second," etc., are merely used to distinguish the described objects and have no sequential or technical meaning. The term "connection" in this invention, unless otherwise specified, includes both direct and indirect connections. The terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, encompassing not only the listed elements but also other elements not expressly listed.

[0037] like Figure 1 , Figure 2 and Figure 5 As shown, this utility model provides a dry cooling tower group structure, including a steel structure tower 10, a cooling tower unit 20, a heat exchanger 30, and circulating water inlet and outlet pipes 40. The steel structure tower 10 adopts a large-span steel structure form, including first columns 11 and crossbeams 12. The first columns 11, as load-bearing columns, are made of large steel frames and are fixed to the ground by concrete foundations 13. The spacing between two adjacent first columns 11 on the end face of the steel structure tower 10 is equal and is twice or more than the conventional spacing (i.e., 2.4 meters), for example, 5.5 meters. The spacing between two adjacent first columns 11 on the air inlet side of the steel structure tower 10 is equal and is twice or more than the conventional spacing (i.e., 2.4 meters), for example, 5.85 meters. Multiple crossbeams 12 are arranged horizontally and parallelly on multiple first columns 11, forming the steel structure tower 10 in conjunction with the first columns 11. The spacing between two adjacent crossbeams 12 can be around 7 meters. Multiple cooling tower units 20 are housed within the steel structure tower 10. Each cooling tower unit 20 operates independently and includes a fan duct 21, a fan 22, and a motor 23. Each cooling tower unit 20 is separated by a maintenance panel 24 to prevent cross-contamination of airflow. The heat exchanger 30 can be an air-cooled finned tube bundle, arranged on both sides of the air inlet side of the steel structure tower 10. Circulating water inlet and outlet pipes 40 are located on the ground and connected to the inlet and outlet of the heat exchanger 30.

[0038] like Figure 6 As shown, the concrete foundation 13 and the first column 11 are fixed using a two-stage pouring process. The first column 11 is first connected to the foundation short column 131 of the concrete foundation 13 via anchor bolts 132, shear connectors 133, and leveling nuts 134, and then fixed by pouring fine aggregate concrete 135. Specifically, the lower end of the first column 11 is provided with a base plate 111 with a diameter larger than that of the first column 11, and the lower end of the base plate 111 is fixedly connected to the shear connector 133. The upper end of the foundation short column 131 is provided with a shear groove that matches the shear connector 133. Anchor bolts 132 are arranged around the shear groove, with the lower end of the anchor bolts 132 fixed inside the foundation short column 131 and the upper end of the anchor bolts 132 protruding from the base plate 111. The leveling nut 134 is provided at the upper end of the anchor bolts 132 and is used to level and lock the base plate 111 onto the foundation short column 131. Fine aggregate concrete 135 covers the base plate 111 and leveling nut 134.

[0039] like Figure 3 As shown, to improve the overall support strength of the steel structure tower 10, at least one second column 14 can be installed between two adjacent first columns 11. The second column 14 uses a small steel frame and serves as an auxiliary column to support the maintenance panel 24, ensuring that the panel can meet the strength requirements to withstand negative pressure when the fan 22 is running. When only one second column 14 is installed between two adjacent first columns 11, the second column 14 and the first column 11 are arranged at equal intervals; when multiple second columns 14 are installed between two adjacent first columns 11, the multiple second columns 14 between two adjacent first columns 11 are arranged at equal intervals.

[0040] like Figure 4 As shown, to improve the overall support strength of the steel structure tower 10, cross-arranged diagonal braces 15 can be added within the grid formed by two adjacent first columns 11 and two adjacent crossbeams 12 to tighten the columns and crossbeams 12; alternatively, cross-arranged diagonal braces 15 can be added between the two adjacent first columns 11, crossbeams 12, and the concrete foundation 13 to tighten the columns and crossbeams 12. Specifically, the dynamic loads of the wind duct 21 and the fan 22 are concentrated at the middle position of the top of the steel structure tower 10, so cross-arranged diagonal braces 15 can be added at the middle position of the steel structure tower 10, that is, cross-arranged diagonal braces 15 can be added to the steel structure tower 10 below the wind duct 21 to increase the structural strength.

[0041] like Figure 1 and Figure 5As shown, the heat exchangers 30 can be arranged in a W-shape on the air inlet side of the steel tower 10, with the arrangement angle between the heat exchangers 30 ranging from 50° to 60°, for example, 55°. Compared to a straight-line arrangement, the W-shape arrangement can significantly increase the effective contact area between the heat exchangers 30 and the dry, cold air, thereby significantly improving the heat exchange efficiency of the cooling tower. Since the height of the heat exchangers 30 can reach 12.5 meters, the bottom support of the heat exchangers 30 can be fixed with the concrete foundation 13, and the middle and upper parts can be connected to the steel tower 10 in multiple layers through multi-layer crossbeams 12, which can increase the installation stability of the heat exchangers 30.

[0042] Furthermore, for ease of maintenance, maintenance doors and staircases 16 can be installed on the wall panels on the end face of the steel structure tower 10.

[0043] Therefore, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value. The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit this utility model. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A dry cooling tower group structure, comprising a steel structure tower frame, cooling tower units, heat exchangers, and circulating water inlet and outlet pipes, wherein multiple cooling tower units are arranged within the steel structure tower frame; the heat exchangers are arranged on both sides of the air inlet side of the steel structure tower frame, and their inlet and outlet ports are connected to the circulating water inlet and outlet pipes; characterized in that, The steel structure tower includes Multiple primary columns are fixed to the ground via concrete foundations; Multiple crossbeams are arranged horizontally and parallelly on multiple first columns.

2. The dry cooling tower group structure according to claim 1, characterized in that, The distance between two adjacent first columns on the end face or air inlet face of the steel structure tower is equal, and the distance is equal to or greater than 4.8 meters.

3. The dry cooling tower group structure according to claim 1, characterized in that, The first column is first connected to the foundation short column of the concrete foundation by anchor bolts, shear connectors and leveling nuts, and then fixed by pouring fine stone concrete.

4. The dry cooling tower group structure according to claim 1, characterized in that, Each of the cooling tower units operates independently and includes a duct, a fan, and a motor; each cooling tower unit is separated by a maintenance panel.

5. The dry cooling tower group structure according to claim 4, characterized in that, At least one second column is provided between two adjacent first columns to support the maintenance panel.

6. The dry cooling tower group structure according to claim 4, characterized in that, The steel structure tower below the wind tunnel is equipped with diagonally arranged tie rods.

7. The dry cooling tower group structure according to claim 1, characterized in that, Diagonal bracing is provided in a cross arrangement within the grid formed by two adjacent first columns and two adjacent crossbeams.

8. The dry cooling tower group structure according to claim 1, characterized in that, The heat exchangers are arranged in a W-shape on the air inlet side of the steel structure tower, and the arrangement angle between the heat exchangers is 50° to 60°.

9. The dry cooling tower group structure according to claim 8, characterized in that, The bottom support of the heat exchanger is fixed by a concrete foundation, and the middle and upper parts are fixedly connected to the steel structure tower by multiple layers of crossbeams.

10. The dry cooling tower group structure according to claim 1, characterized in that, The steel structure tower has inspection doors and stairs installed on the wall panels on its end faces.

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