Corrosion-resistant tower footing structure of power transmission tower

Abstract

The utility model discloses a corrosion-resistant tower footing structure of a power transmission tower. The corrosion-resistant tower footing structure comprises a tower footing, a power transmission tower foot, a composite corrosion-resistant layer, a protection assembly and a filling layer, the tower footing is buried in a stratum and is formed by pouring concrete, and a foundation pit is formed in the top of the tower footing; one end of the power transmission tower foot extends into the foundation pit, and the other end of the power transmission tower foot extends out of the foundation pit. The strength of the intersection of the tower footing and the tower foot of the power transmission tower can be improved through the protection assembly, the tower foot of the power transmission tower at the position can be surrounded in the protection assembly, corrosion caused by the fact that the intersection of the tower footing and the tower foot of the power transmission tower is in contact with air or rainwater is avoided, the composite corrosion-resistant layer has the rust-proof, corrosion-resistant, oxidation-resistant and waterproof effects, and the service life of the tower footing and the tower foot of the power transmission tower is prolonged. The corrosion condition of the connecting position of the tower foot root and the tower footing of the power transmission tower can be effectively relieved, the corrosion resistance of the whole power transmission tower is improved, and the falling risk caused by corrosion of the power transmission tower is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of power transmission iron towers, and more specifically to a corrosion-resistant power transmission iron tower base structure. Background Art

[0002] Transmission towers are the supporting points of overhead lines and are important load-bearing structures of high-voltage transmission lines. Transmission line towers are mainly composed of angle steel, connecting steel plates and other components. Transmission line towers are mainly subjected to various external forces such as pulling, pressing, bending, twisting, and shearing under meteorological conditions such as unbalanced tension, ice, snow, and the highest and lowest temperatures caused by line disconnection accidents. Therefore, their firmness, reliability and safety are extremely important.

[0003] Transmission towers have been operating in harsh outdoor environments for a long time, facing changeable weather conditions, atmospheric corrosion and even some man-made damage. Especially the connection between the main material of the transmission tower and the tower base, which will face atmospheric corrosion and rain erosion. Some existing power towers are simply waterproofed before being put into use. Over time, it will cause corrosion and rust, resulting in the risk of the transmission tower falling. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of the utility model is to provide a corrosion-resistant transmission tower base structure.

[0005] To solve the above problems, the utility model adopts the following technical solutions.

[0006] A corrosion-resistant transmission iron tower base structure comprises a tower base, a transmission tower foot, a composite corrosion-resistant layer, a protective component and a filling layer.

[0007] The tower base is buried in the stratum, the tower base is cast by concrete, and a foundation pit is arranged on the top of the tower base; one end of the tower foot of the transmission tower extends into the foundation pit, and the other end of the tower foot of the transmission tower extends to the outside of the foundation pit; the composite corrosion-resistant layer is fixedly arranged on the outer wall of the tower foot of the transmission tower; the protection component is fixedly arranged on the outer wall of the tower foot of the transmission tower and wrapped with the composite corrosion-resistant layer; the filling layer is cast in the foundation pit after the tower foot of the transmission tower, the composite corrosion-resistant layer and the protection component are installed.

[0008] Furthermore, when pouring the tower base, a pre-buried hook that can be inserted into the stratum is inserted into the concrete, and one end of the pre-buried hook located in the tower base is provided with an external thread. The end of the pre-buried hook with the external thread can pass through the tower foot and be locked by a nut.

[0009] Furthermore, the composite corrosion-resistant layer includes an anti-rust layer, a first corrosion-resistant layer, a second corrosion-resistant layer, a third corrosion-resistant layer, an anti-oxidation layer, and a waterproof layer, which are arranged in sequence from the outer wall of the tower foot to the outside.

[0010] Furthermore, the anti-rust layer is sprayed on the tower foot of the transmission tower with iron red phenolic paint as a primer, and phenolic enamel is sprayed on the surface of the iron red phenolic paint as a topcoat.

[0011] Furthermore, the first corrosion-resistant layer is a polyamide coating disposed on the surface of the phenolic enamel, the second corrosion-resistant layer is a nano-titanium organic anti-corrosion coating disposed on the surface of the first corrosion-resistant layer, and the third corrosion-resistant layer is an epoxy resin layer disposed on the surface of the second corrosion-resistant layer.

[0012] Furthermore, the anti-oxidation layer is a silicon dioxide coating disposed on the surface of the third corrosion-resistant layer, and the waterproof layer is a polyurethane material disposed on the surface of the anti-oxidation layer.

[0013] Furthermore, the protection component includes two enclosing plates, which are locked to the outside of the tower foot by bolts and nuts, and the inner sides of the two enclosing plates are provided with accommodating grooves, and sealing rings are fixedly arranged in the accommodating grooves. The two sealing rings contact each other for sealing, and the composite corrosion-resistant layer is surrounded by the enclosing plates and the sealing rings in a closed space.

[0014] Furthermore, a first waterproof rubber strip is fixedly provided at the intersection between the top and bottom of the surrounding plate and the foot of the transmission tower, and a second waterproof rubber strip is fixedly provided at the intersection between the surrounding plate and the top of the filling layer.

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] A protection component is arranged between the tower base and the foot of the transmission tower. The protection component can improve the strength of the intersection of the tower base and the foot of the transmission tower, and make the foot of the transmission tower in this part be surrounded by the protection component, so as to prevent the intersection of the tower base and the foot of the transmission tower from being exposed to air or rainwater and causing corrosion. At the same time, the foot of the transmission tower surrounded by the protection component is also provided with a composite corrosion-resistant layer. The composite corrosion-resistant layer has anti-rust, anti-corrosion, anti-oxidation and waterproof effects, and further protects the foot of the transmission tower, which can effectively reduce the corrosion of the root of the foot of the transmission tower and the connection between the tower base, improve the corrosion resistance of the entire transmission tower, and reduce the risk of the transmission tower falling due to corrosion. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the overall installation plan structure of the utility model;

[0019] Figure 3 For this utility model Figure 2 The enlarged schematic diagram at A in the middle;

[0020] Figure 4 It is a schematic plan cross-sectional view of the composite corrosion-resistant layer of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the enclosing plate of the utility model;

[0022] Figure 6 It is a schematic diagram of the structure of the surrounding plate and the sealing ring of the utility model.

[0023] Description of the numbers in the figure:

[0024] 1. Tower base; 2. Transmission tower foot; 3. Composite corrosion-resistant layer; 31. Anti-rust layer; 32. First corrosion-resistant layer; 33. Second corrosion-resistant layer; 34. Third corrosion-resistant layer; 35. Anti-oxidation layer; 36. Waterproof layer; 4. Protection component; 41. Surrounding plate; 42. Receiving groove; 43. Sealing ring; 5. Filling layer; 6. Embedded hook; 7. First waterproof rubber strip; 8. Second waterproof rubber strip. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention;

[0026] See also Figures 1 to 6 In the utility model, a corrosion-resistant transmission tower base structure comprises a tower base 1, a transmission tower foot 2, a composite corrosion-resistant layer 3, a protective component 4 and a filling layer 5.

[0027] A tower base 1 is buried in the stratum, the tower base 1 is cast by concrete, and a foundation pit is arranged on the top thereof; one end of the transmission tower foot 2 extends into the foundation pit, and the other end of the transmission tower foot 2 extends to the outside of the foundation pit; the composite corrosion-resistant layer 3 is fixedly arranged on the outer wall of the transmission tower foot 2; the protection component 4 is fixedly arranged on the outer wall of the transmission tower foot 2 and wraps the composite corrosion-resistant layer 3; the filling layer 5 is cast in the foundation pit after the transmission tower foot 2, the composite corrosion-resistant layer 3 and the protection component 4 are installed.

[0028] In this embodiment, preferably, a pre-embedded hook 6 that can be inserted into the stratum is inserted into the concrete during pouring of the tower base 1, and one end of the pre-embedded hook 6 located in the tower base 1 is provided with an external thread, and the end of the pre-embedded hook 6 with the external thread can pass through the tower foot 2 and be locked by a nut.

[0029] In this embodiment, preferably, the composite corrosion-resistant layer 3 includes an anti-rust layer 31, a first corrosion-resistant layer 32, a second corrosion-resistant layer 33, a third corrosion-resistant layer 34, an anti-oxidation layer 35, and a waterproof layer 36 which are sequentially arranged from the outer wall of the transmission tower foot 2 to the outside;

[0030] The anti-rust layer 31 is sprayed on the tower foot 2 of the transmission tower with iron red phenolic paint as the primer, and is sprayed on the surface of the iron red phenolic paint with phenolic enamel as the topcoat; the first corrosion-resistant layer 32 is a polyamide coating arranged on the surface of the phenolic enamel, the second corrosion-resistant layer 33 is a nano-titanium organic anti-corrosion coating arranged on the surface of the first corrosion-resistant layer 32, and the third corrosion-resistant layer 34 is an epoxy resin layer arranged on the surface of the second corrosion-resistant layer 33; the anti-oxidation layer 35 is a silicon dioxide coating arranged on the surface of the third corrosion-resistant layer 34, and the waterproof layer 36 is a polyurethane material arranged on the surface of the anti-oxidation layer 35;

[0031] In this embodiment, preferably, the protection component 4 includes two enclosing plates 41, which are locked to the outside of the tower foot 2 by bolts and nuts, and the inner sides of the two enclosing plates 41 are provided with a receiving groove 42, and a sealing ring 43 is fixedly arranged in the receiving groove 42. The two sealing rings 43 contact each other for sealing, and the composite corrosion-resistant layer 3 is surrounded by the enclosing plates 41 and the sealing rings 43 in a closed space.

[0032] In this embodiment, preferably, a first waterproof rubber strip 7 is fixedly provided at the intersection between the top and bottom of the surrounding plate 41 and the tower foot 2 of the transmission tower, and a second waterproof rubber strip 8 is fixedly provided at the intersection between the surrounding plate 41 and the top of the filling layer 5; the intersection between the top and bottom of the surrounding plate 41 and the tower foot 2 of the transmission tower is waterproofed by the first waterproof rubber strip 7, and the intersection between the surrounding plate 41 and the top of the filling layer 5 is waterproofed by the second waterproof rubber strip 8.

[0033] The working principle and steps of this utility model:

[0034] 1. Drill a hole in the ground and build a casting template, cast the tower base 1 with concrete, add the embedded hook 6 during the casting process, and insert the embedded hook 6 into the stratum, and remove the template after the concrete is formed;

[0035] 2. Spraying an anti-rust layer 31, a first corrosion-resistant layer 32, a second corrosion-resistant layer 33, a third corrosion-resistant layer 34 and an anti-oxidation layer 35 on one side of the surface of the tower foot 2, and then pasting a waterproof layer 36 to form a composite corrosion-resistant layer 3;

[0036] 3. After the composite corrosion-resistant layer 3 is set, the two surrounding plates 41 are locked on the tower foot 2 by bolts and nuts, and it is ensured that the two sealing rings 43 are in contact with each other, and the composite corrosion-resistant layer 3 is enclosed in the sealing ring 43, and the first waterproof rubber strip 7 is fixed at the intersection between the top and bottom of the surrounding plate 41 and the tower foot 2 of the transmission tower;

[0037] 4. Place the tower foot 2 of the transmission tower in the foundation pit of the tower base 1, and insert the embedded hook 6 through the tower foot 2 and lock it with a nut, and then pour the filling layer 5 with concrete;

[0038] 5. After the filling layer 5 is formed, a second waterproof rubber strip 8 is fixed at the intersection between the surrounding plate 41 and the filling layer 5 .

[0039] In summary, a protection component 4 is arranged between the tower base 1 and the tower foot 2 of the transmission tower. The protection component 4 can improve the strength of the intersection of the tower base 1 and the tower foot 2 of the transmission tower, and make the tower foot 2 of the transmission tower in this part be surrounded by the protection component 4, so as to prevent the intersection of the tower base 1 and the tower foot 2 from contacting with air or rainwater to cause corrosion. At the same time, the tower foot 2 of the transmission tower surrounded by the protection component 4 is also provided with a composite corrosion-resistant layer 3. The composite corrosion-resistant layer 3 has anti-rust, anti-corrosion, anti-oxidation and waterproof effects, and further protects the tower foot 2 of the transmission tower, which can effectively reduce the corrosion of the root of the tower foot 2 and the connection between the tower base 1, improve the corrosion resistance of the entire transmission tower, and reduce the risk of the transmission tower falling due to corrosion.

[0040] The electronic components and modules used in the content of this utility model can all be parts that are commonly used in the market and can realize the specific functions in this case, and the specific models and sizes can be selected and adjusted according to actual needs. The electronic components and modules are all connected to an external power supply and a control switch for use. Their specific circuit connection methods and methods of use are commonly used public technologies and will not be elaborated on here.

[0041] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A corrosion-resistant transmission tower base structure, characterized in that: include: A tower base (1), wherein the tower base (1) is buried in the ground, the tower base (1) is cast with concrete, and a foundation pit is arranged on the top of the tower base; A power transmission tower foot (2), one end of the power transmission tower foot (2) extends into the foundation pit, and the other end of the power transmission tower foot (2) extends to the outside of the foundation pit; A composite corrosion-resistant layer (3), wherein the composite corrosion-resistant layer (3) is fixedly arranged on the outer wall of the transmission tower foot (2); A protection component (4), wherein the protection component (4) is fixedly arranged on the outer wall of the transmission tower foot (2) and is wrapped with a composite corrosion-resistant layer (3); A filling layer (5) is poured into the foundation pit after the tower foot (2), the composite corrosion-resistant layer (3) and the protective component (4) are installed.

2. A corrosion-resistant transmission tower base structure according to claim 1, characterized in that: When pouring the tower base (1), a pre-embedded hook (6) that can be inserted into the stratum is inserted into the concrete, and one end of the pre-embedded hook (6) located in the tower base (1) is provided with an external thread. The end of the pre-embedded hook (6) with the external thread can pass through the tower foot (2) of the transmission tower and be locked by a nut.

3. The corrosion-resistant transmission tower base structure according to claim 1, characterized in that: The composite corrosion-resistant layer (3) comprises an anti-rust layer (31), a first corrosion-resistant layer (32), a second corrosion-resistant layer (33), a third corrosion-resistant layer (34), an anti-oxidation layer (35), and a waterproof layer (36) which are sequentially arranged from the outer wall of the transmission tower foot (2) outward.

4. A corrosion-resistant transmission tower base structure according to claim 3, characterized in that: The anti-rust layer (31) is sprayed on the tower foot (2) with iron red phenolic paint as the base, and is sprayed on the surface of the iron red phenolic paint with phenolic enamel as the topcoat.

5. A corrosion-resistant transmission tower base structure according to claim 4, characterized in that: The first corrosion-resistant layer (32) is a polyamide coating disposed on the surface of a phenolic enamel, the second corrosion-resistant layer (33) is a nano-titanium organic anti-corrosion coating disposed on the surface of the first corrosion-resistant layer (32), and the third corrosion-resistant layer (34) is an epoxy resin layer disposed on the surface of the second corrosion-resistant layer (33).

6. The corrosion-resistant transmission tower base structure according to claim 3, characterized in that: The anti-oxidation layer (35) is a silicon dioxide coating disposed on the surface of the third corrosion-resistant layer (34), and the waterproof layer (36) is a polyurethane material disposed on the surface of the anti-oxidation layer (35).

7. The corrosion-resistant transmission tower base structure according to claim 2, characterized in that: The protection assembly (4) comprises two enclosing plates (41), the two enclosing plates (41) being locked to the outside of the transmission tower foot (2) by means of bolts and nuts, the inner sides of the two enclosing plates (41) are provided with a receiving groove (42), a sealing ring (43) is fixedly arranged in the receiving groove (42), the two sealing rings (43) contact each other to seal, and the composite corrosion-resistant layer (3) is surrounded by the enclosing plates (41) and the sealing rings (43) in a closed space.

8. The corrosion-resistant transmission tower base structure according to claim 7, characterized in that: A first waterproof rubber strip (7) is fixedly arranged at the intersection between the top and bottom of the surrounding plate (41) and the tower foot (2), and a second waterproof rubber strip (8) is fixedly arranged at the intersection between the surrounding plate (41) and the top of the filling layer (5).

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