A lightning protection foundation for absorbing high towers
By designing an anti-tilt lightning protection foundation including reinforcement, ground cage embedded parts and lightning protection grounding parts on the basis of the absorption tower, the safety problems of the absorption tower in terms of wind and lightning strikes are solved, and the stability and safety of the tower body are improved.
Patent Information
- Application Number
- CN202421479214.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-26
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-06-26
AI Technical Summary
The absorption tower is susceptible to strong winds and lightning strikes due to its height, and the existing foundations are not effective in preventing tower body tilt and lightning protection grounding.
The anti-tilt lightning protection foundation design includes foundation concrete body, ground cage embedded parts, reinforcement parts and lightning protection grounding parts. The reinforcement reinforcement enhances the stability of the concrete body through the bottom and side steel mesh, the ground cage embedded parts fix the tower, and the lightning-proof grounding parts reduce the risk of lightning through horizontal and vertical ground poles.
It effectively improves the overall stability and wind and earthquake resistance of the high tower, avoids the risk of falling from external forces, and ensures the safety of the tower body in thunderstorms.
Smart Images
Figure CN222745098U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of tower foundations, and in particular to an anti-tilt and lightning protection foundation for high towers. Background Art
[0002] The absorption tower has a high vertical height and is easily affected by strong winds and subjected to large horizontal external forces. It is also at risk of being struck by lightning during thunderstorms. However, the foundation of the current absorption tower has poor anti-tower tilting effect and no lightning protection grounding function. Utility Model Content
[0003] Based on this, the present application provides a lightning protection foundation for absorbing high towers. The technical solution adopted in the present application is as follows:
[0004] A lightning protection foundation for an absorption tower, comprising a foundation concrete body, a ground cage embedded part, a steel reinforcement part and a lightning protection grounding part, wherein the steel reinforcement part comprises a bottom steel mesh and a side steel mesh, the bottom steel mesh is arranged at the bottom of a foundation pit, the side steel mesh is arranged at the wall of the foundation pit, the ground cage embedded part is arranged in the foundation pit, the upper end of the ground cage embedded part is connected to the lower tower tube of the absorption tower, the foundation pit is filled with concrete pouring to form the foundation concrete body, the steel reinforcement part and the ground cage embedded part are buried in the foundation concrete body, the lightning protection grounding part is buried in the land on the surrounding side of the foundation concrete body, and the lightning protection grounding part is connected to the lower tower tube of the absorption tower through a grounding flat steel.
[0005] Furthermore, the ground cage embedded parts include an upper ring plate, a lower ring plate and a plurality of anchor bolts, the upper ring plate and the lower ring plate are arranged opposite to each other in the upper and lower directions, the anchor bolts penetrate the upper ring plate and the lower ring plate, and the anchor bolts are welded to the upper ring plate and the lower ring plate, and the portion of the anchor bolt extending from the upper side of the upper ring plate is a bolt connection end with a thread, and the bolt connection end is used to lock the lower tower tube of the absorption tower, and a plurality of the anchor bolts are evenly spaced along the circumference.
[0006] Furthermore, an upper cross frame is provided in the upper ring plate, and a lower cross frame is provided in the lower ring plate, and the centers of the upper cross frame and the lower cross frame are connected via a vertical bracket.
[0007] Furthermore, the lightning protection grounding component includes a horizontal grounding grid and a plurality of vertical grounding electrodes, the grounding flat steel is connected to the horizontal grounding grid, and the plurality of vertical grounding electrodes are dispersedly connected to the horizontal grounding grid.
[0008] Furthermore, the horizontal grounding grid is also connected to a test grounding electrode, the top of which is exposed above the ground, and the top of which is used to connect to a resistance test terminal.
[0009] Furthermore, the horizontal grounding grid includes a polygonal grounding grid formed by a plurality of first horizontal hot-dip galvanized flat steels connected in a polygonal form around the foundation concrete body, and the vertical grounding electrode is a vertical hot-dip galvanized angle steel, and a vertical grounding electrode is connected at the connection between two of the first horizontal hot-dip galvanized flat steels.
[0010] Furthermore, the polygonal grounding grid is flush with the lower ring plate of the ground cage embedded part, and is connected to the lower ring plate through a plurality of dispersed second horizontal hot-dip galvanized flat steels on the inner side of the polygonal grounding grid, and a plurality of the vertical grounding electrodes are welded on the lower ring plate.
[0011] The present application improves the overall stability and strength of the foundation concrete body through steel reinforcements to prevent deformation or damage to the foundation structure caused by load or earthquake, and fixes the absorption tower to the foundation concrete body through ground cage embedded parts. The ground cage embedded parts support the surroundings of the lower tower of the absorption tower, so that the absorption tower can withstand wind and earthquakes to avoid tipping over due to external forces. The present application also prevents the absorption tower from being affected by lightning by setting up lightning protection grounding parts. Therefore, the anti-tilt and lightning protection foundation of the absorption tower of the present application can ensure the stable and safe operation of the absorption tower. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0013] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application.
[0014] Figure 2 for Figure 1 A schematic structural diagram of the ground cage embedded parts in the illustrated embodiment.
[0015] Figure 3 for Figure 1 A schematic diagram of the structure in which the steel reinforcement member is buried in the foundation concrete body in the illustrated embodiment.
[0016] Figure 4 for Figure 1 A schematic diagram of the structure of a lightning protection grounding component in the illustrated embodiment.
[0017] Description of reference numerals:
[0018] 10. Foundation concrete body; 20. Ground cage embedded parts; 21. Upper ring plate; 22. Lower ring plate; 23. Anchor bolts; 231. Bolt connection end; 24. Upper cross frame; 25. Lower cross frame; 26. Vertical bracket; 30. Steel reinforcement; 31. Bottom steel mesh; 32. Side steel mesh; 40. Lightning protection grounding parts; 41. Grounding flat steel; 42. Horizontal grounding grid; 421. First horizontal hot-dip galvanized flat steel; 422. Second horizontal hot-dip galvanized flat steel; 43. Vertical grounding electrode (vertical hot-dip galvanized angle steel); 44. Test grounding electrode. DETAILED DESCRIPTION
[0019] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below with reference to the accompanying drawings. The present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.
[0020] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships 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, and do not indicate or imply that the referred device or element 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.
[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0022] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0023] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0024] refer to Figure 1 The present application provides an absorption tower anti-tilt lightning protection foundation, including a foundation concrete body 10, a ground cage embedded part 20, a steel reinforcement part 30 and a lightning protection grounding part 40, the steel reinforcement part 30 includes a bottom steel mesh 31 and a side steel mesh 32, the bottom steel mesh 31 is arranged at the bottom of the foundation pit, the side steel mesh 32 is arranged on the foundation pit wall, the ground cage embedded part 20 is arranged in the foundation pit, the upper end of the ground cage embedded part 20 is connected to the lower tower tube of the absorption tower, concrete is poured to fill the foundation pit to form the foundation concrete body 10, the steel reinforcement part 30 and the ground cage embedded part 20 are buried in the foundation concrete body 10, the lightning protection grounding part 40 is buried in the land on the surrounding side of the foundation concrete body 10, and the lightning protection grounding part 40 is connected to the lower tower tube of the absorption tower through the grounding flat steel 41.
[0025] In one embodiment, reference Figure 2 The ground cage embedded part 20 includes an upper ring plate 21, a lower ring plate 22 and a plurality of anchor bolts 23. The upper ring plate 21 and the lower ring plate 22 are arranged opposite to each other up and down. The anchor bolts 23 penetrate the upper ring plate 21 and the lower ring plate 22, and the anchor bolts 23 are welded to the upper ring plate 21 and the lower ring plate 22. The part of the anchor bolt 23 extending from the upper side of the upper ring plate 21 is a bolt connection end 231 with a thread. The bolt connection end 231 is used to lock the lower tower of the absorption tower. The plurality of anchor bolts 23 are evenly spaced along the circumference. An upper cross frame 24 is provided in the upper ring plate 21, and a lower cross frame 25 is provided in the lower ring plate 22. The centers of the upper cross frame 24 and the lower cross frame 25 are connected by a vertical bracket 26.
[0026] Specifically, the bottom end of the lower tower of the absorption tower has a tower base, and the anchor bolts 23 are fixedly connected to the tower base through locking nuts. The lower end of the absorption tower is fixed in the circumferential direction by evenly distributing a number of anchor bolts 23 and the tower base at intervals along the circumference. The upper cross frame 24, the lower cross frame 25 and the vertical bracket 26 can be welded with angle steel, which can enhance the anti-deformation ability of the cage embedded part 20. For easy transportation, the cage embedded part 20 can be divided into two semicircular cages with the same and symmetrical structure, and then welded into a whole at the construction site.
[0027] refer to Figure 3 The diameter of the bottom of the foundation pit becomes larger, the bottom steel mesh 31 covers the bottom of the foundation pit, and the side steel mesh 32 covers the wall of the foundation pit.
[0028] The lightning protection grounding component 40 includes a horizontal grounding grid 42 and multiple vertical grounding electrodes 43. The lower end of the grounding flat steel 41 is welded to the horizontal grounding grid 42. The upper end of the grounding flat steel 41 is exposed above the ground and connected to the lower tower of the absorption tower. Multiple vertical grounding electrodes 43 are dispersedly connected to the horizontal grounding grid 42.
[0029] Specifically, refer to Figure 1 and Figure 4 The horizontal grounding grid 42 includes a polygonal grounding grid formed by connecting a plurality of first horizontal hot-dip galvanized flat steels 421 in a polygonal form around the foundation concrete body 10. The vertical grounding electrode 43 is a vertical hot-dip galvanized angle steel 43. A vertical grounding electrode 43 is connected at the connection of two first horizontal hot-dip galvanized flat steels 421. The lower end of the vertical hot-dip galvanized angle steel 43 is made into a 30° sharp angle to facilitate driving into the soil.
[0030] Furthermore, the polygonal grounding grid is flush with the lower ring plate 22 of the cage embedded part 20, and is connected to the lower ring plate 22 through a plurality of dispersed second horizontal hot-dip galvanized flat steels 422 on the inner side of the polygonal grounding grid, and a plurality of vertical grounding electrodes 43 are welded on the lower ring plate 22. According to the "Petrochemical Equipment Lightning Protection Design Code" GB 50650-2011, when the tower wall thickness is greater than or equal to 4mm, the tower body itself should be used as a lightning arrester. Therefore, when the tower wall thickness of the absorption tower is greater than or equal to 4mm, the tower body itself is a conductor, and the cage embedded part 20 is also a conductor, so the cage embedded part 20 and the lightning protection grounding part 40 can be connected together. By setting it in this way, the grounding area of the lightning protection grounding part 40 is increased, and the lightning protection grounding part is arranged on the surrounding side and the lower side of the cage embedded part 20, so that the foundation structure is more concentrated, which can be suitable for foundation construction in a location with a small construction space.
[0031] The horizontal grounding grid 42 is also connected to a test grounding electrode 44 , the top of which is exposed above the ground. The top of the test grounding electrode 44 is used to connect to a resistance test terminal.
[0032] The present application improves the overall stability and strength of the foundation concrete body 10 by using the steel reinforcement 30 to prevent deformation or damage of the foundation structure caused by load or earthquake, and fixes the absorption tower to the foundation concrete body 10 by using the ground cage embedded parts 20. The ground cage embedded parts 20 support the surroundings of the lower tower of the absorption tower, so that the absorption tower can withstand wind and earthquake to avoid tipping over due to external forces. The present application also prevents the absorption tower from being affected by lightning by setting a lightning protection grounding part 40. Therefore, the anti-tilt and lightning protection foundation of the absorption tower of the present application can ensure the stable and safe operation of the absorption tower.
[0033] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0034] The above-described embodiments only express several implementation methods of the present application and should not be construed as limiting the scope of the patent application. It should be noted that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be subject to the attached claims.
Claims
1. An absorption tower anti-tilt lightning protection foundation, characterized in that: It includes a foundation concrete body, a ground cage embedded part, steel reinforcement parts and a lightning protection grounding part. The steel reinforcement parts include a bottom steel mesh and a side steel mesh. The bottom steel mesh is arranged at the bottom of the foundation pit, and the side steel mesh is arranged on the wall of the foundation pit. The ground cage embedded part is arranged in the foundation pit. The upper end of the ground cage embedded part is connected to the lower tower cylinder of the absorption tower. Concrete is poured to fill the foundation pit to form the foundation concrete body. The steel reinforcement parts and the ground cage embedded parts are buried in the foundation concrete body. The lightning protection grounding part is buried in the land on the surrounding side of the foundation concrete body. The lightning protection grounding part is connected to the lower tower cylinder of the absorption tower through a grounding flat steel.
2. The absorption high tower anti-tilt lightning protection foundation according to claim 1 is characterized in that: The ground cage embedded parts include an upper ring plate, a lower ring plate and a plurality of anchor bolts. The upper ring plate and the lower ring plate are arranged opposite to each other in the upper and lower directions. The anchor bolts penetrate the upper ring plate and the lower ring plate, and the anchor bolts are welded to the upper ring plate and the lower ring plate. The portion of the anchor bolt extending from the upper side of the upper ring plate is a bolt connection end with a thread. The bolt connection end is used to lock the lower tower tube of the absorption tower. A plurality of the anchor bolts are evenly spaced along the circumference.
3. The absorption high tower anti-tilt lightning protection foundation according to claim 2 is characterized in that: An upper cross frame is arranged in the upper ring plate, and a lower cross frame is arranged in the lower ring plate. The centers of the upper cross frame and the lower cross frame are connected through a vertical bracket.
4. The absorption high tower anti-tilt lightning protection foundation according to claim 3 is characterized in that: The lightning protection grounding component comprises a horizontal grounding grid and a plurality of vertical grounding electrodes. The grounding flat steel is connected to the horizontal grounding grid, and the plurality of vertical grounding electrodes are dispersedly connected to the horizontal grounding grid.
5. The absorption high tower anti-tilt lightning protection foundation according to claim 4 is characterized in that: The horizontal grounding grid is also connected to a test grounding electrode, the top of which is exposed above the ground, and the top of which is used to connect to a resistance test terminal.
6. The absorption high tower anti-tilt lightning protection foundation according to claim 4 or 5, characterized in that: The horizontal grounding grid includes a polygonal grounding grid formed by connecting a plurality of first horizontal hot-dip galvanized flat steels in a polygonal form around the foundation concrete body. The vertical grounding electrode is a vertical hot-dip galvanized angle steel. A vertical grounding electrode is connected at the connection between two of the first horizontal hot-dip galvanized flat steels.
7. The absorption high tower anti-tilt lightning protection foundation according to claim 6 is characterized in that: The polygonal grounding grid is flush with the lower ring plate of the ground cage embedded part, and is connected to the lower ring plate through a plurality of dispersed second horizontal hot-dip galvanized flat steels on the inner side of the polygonal grounding grid, and a plurality of vertical grounding electrodes are welded on the lower ring plate.