Anti-icing conductor, and manufacturing production line and manufacturing method therefor

Abstract

Disclosed in the present invention are an anti-icing conductor, and a manufacturing production line and manufacturing method therefor. The anti-icing conductor comprises: a conductor core; an inner aluminum wire arranged on the outer side of the conductor core; an outer aluminum wire arranged on the outer side of the inner aluminum wire; and an outer-surface hydrophobic layer, which is made of a hydrophobic material and is arranged on the outer side of the outer aluminum wire. The manufacturing production line for the anti-icing conductor is provided with a first cleaning device, a conductor sandblasting machine, a second cleaning device, a coiling device, a first spraying chamber, a first drying chamber, a second spraying chamber and a second drying chamber for producing the anti-icing conductor. A surface of the conductor is coated with a large amount of hydrophobic material, such that the capture rate of supercooled water droplets by a transmission line can be reduced, and the adhesion between ice and a coating can be reduced; in addition, a superhydrophobic coating can also delay the freezing of the water droplets on a surface of the coating, thereby achieving deicing or anti-icing. The anti-icing conductor is particularly suitable for use in icing-prone areas, and achieves a good anti-icing effect.

Description

An anti-icing conductor, a production line and a manufacturing method thereof Technical Field

[0001] This invention relates to the field of overhead power transmission line technology, specifically to an anti-icing conductor, a production line for manufacturing it, and a manufacturing method thereof. Background Technology

[0002] With the changing weather in recent years, especially extreme snow and ice weather, the safe operation of the power grid has been greatly endangered. Severe icing of power grid lines and equipment poses a significant challenge to the safe and stable operation of the power grid and the reliable power supply to customers. Low-temperature rainwater falling on transmission lines below zero degrees Celsius will freeze, causing transmission line icing. Transmission line icing is one of the most serious disasters in the power system, leading to insulator flashover, overload, line galloping, and even line breaks and tower collapses, seriously threatening the safe operation of the power grid. Among these, frost icing is hard, difficult to detach, and has sufficient strength to cause rapid icing growth on conductors, making it the main form of transmission line icing.

[0003] Currently, anti-icing coating technology is a promising method for preventing icing on power transmission lines. By constructing a coating on the surface of the transmission line using anti-icing paint, the formation and growth of ice are actively inhibited and mitigated during icing periods, fundamentally eliminating the occurrence of icing disasters. Due to its low energy consumption and ease of implementation, the anti-icing coating method has received widespread attention from engineering and academic communities. Anti-icing coatings can be divided into three types: electrothermal coatings, photothermal coatings, and de-icing coatings. Electrothermal coatings are mainly used for insulator anti-icing. Conductive fillers are added to the coating, which is then applied to the insulator to form an electrothermal coating. The conductive fillers reduce the resistivity of the coating. Under normal voltage operation, when the insulator is iced, the leakage current flowing through the coating increases, exerting an electrothermal effect and generating Joule heating, which heats the coating surface and delays or prevents icing. However, the anti-icing function of the coating is affected by the length and diameter of the insulator string, and it is not suitable for use in rime or wet snow weather. Photothermal coatings refer to coatings containing substances with good light absorption properties, applied to power transmission lines to form a photothermal coating, increasing light absorption and utilizing solar energy for anti-icing or de-icing. However, photothermal coatings are highly dependent on weather conditions; unfavorable weather during icing disasters hinders their effectiveness. De-icing coatings release small organic molecules to lower the melting temperature, achieving de-icing or de-icing. However, the release of freezing point inhibitors decreases over time, making de-icing coatings sacrificial coatings and lacking long-term effectiveness. Therefore, there is an urgent need for an anti-icing conductor, a production line, and a manufacturing method to address the shortcomings of existing anti-icing coating methods. Technical issues

[0004] Existing methods for preventing icing on transmission lines include thermal icing / de-icing, mechanical de-icing, natural passive icing / de-icing, and other de-icing methods. However, thermal icing / de-icing consumes a lot of energy, mechanical de-icing has low safety and efficiency, natural passive de-icing is too dependent on weather conditions and its de-icing effect is unpredictable, and other icing / de-icing methods are still in the theoretical verification and simulation stage. Therefore, none of these methods can fundamentally suppress or eliminate the occurrence of icing disasters on transmission lines. Technical solutions

[0005] To address the shortcomings of existing technologies, this invention designs a production line for manufacturing anti-icing wires, comprising: a first cleaning device; a wire sandblasting machine disposed at the output end of the first cleaning device; a second cleaning device disposed at the output end of the wire sandblasting machine; a wire coiling device disposed at the output end of the second cleaning device; a first spraying chamber disposed at the output end of the wire coiling device; a first drying chamber disposed at the output end of the first spraying chamber; a second spraying chamber disposed at the output end of the second spraying chamber; and a second drying chamber disposed at the output end of the second drying chamber.

[0006] Preferably, both the first drying chamber and the second drying chamber are at a high temperature of 40±5℃.

[0007] Preferably, both the first drying chamber and the second drying chamber are in a low-pressure state below standard atmospheric pressure.

[0008] Based on the same design concept, this invention provides a method for manufacturing anti-icing wires, comprising the following steps: First cleaning of the outer aluminum wire, using a first cleaning device to remove stains from the surface of the outer aluminum wire; Processing outer surface grooves, using a wire sandblasting machine to process outer surface grooves on the outer surface of the outer aluminum wire; Second cleaning of the outer aluminum wire, using a second cleaning device to remove stains remaining from the sandblasting process of the outer surface grooves; Organizing the wire, using a coiling device to organize the cleaned wires; Primer spraying, applying primer to the wires in a first spraying chamber; Primer drying chamber, performing a first drying of the primer-coated wires in a first drying chamber; Topcoat spraying, applying topcoat to the wires in a second spraying chamber; Topcoat drying chamber, performing a second drying of the topcoat-coated wires in a second drying chamber. After drying, the anti-icing wire is manufactured.

[0009] Preferably, the drying time of the wire in the first drying chamber and the second drying chamber is not less than 40 minutes.

[0010] Based on the same design concept, the present invention provides an anti-icing conductor, comprising: a conductor core; an inner aluminum wire disposed on the outside of the conductor core; an outer aluminum wire disposed on the outside of the inner aluminum wire; and an outer surface hydrophobic layer made of hydrophobic material disposed on the outside of the outer aluminum wire.

[0011] Preferably, an outer surface groove is formed on the outer side of the outer aluminum wire.

[0012] Preferably, the hydrophobic layer on the outer surface has a double-layer structure.

[0013] Preferably, the inner layer of the hydrophobic layer on the outer surface is a primer and the outer layer is a topcoat, wherein the topcoat is made of a hydrophobic material. Beneficial effects

[0014] Compared with the closest prior art, the beneficial effects of this invention are as follows: The invention coats the conductor surface with a large amount of hydrophobic material, which reduces the capture rate of supercooled water droplets by the transmission line and reduces the adhesion between ice and the coating. Furthermore, the superhydrophobic coating can delay the freezing of water droplets on the coating surface, thereby achieving de-icing or anti-icing. It is particularly suitable for use in icing areas, providing excellent anti-icing effects. Attached Figure Description

[0015] Figure 1 is a schematic diagram of the production line for manufacturing anti-icing conductors according to the present invention.

[0016] Figure 2 is a schematic diagram of the anti-icing wire of the present invention.

[0017] Figure 3 is a comparison diagram of the anti-icing conductor made using conventional methods and the method of the present invention, magnified 100 times.

[0018] Reference numerals: 1-wire core, 2-inner aluminum wire, 3-outer aluminum wire, 4-outer surface groove, 5-outer surface hydrophobic layer, 6-first cleaning device, 7-wire sandblasting machine, 8-second cleaning device, 9-wire coiling device, 10-first spraying chamber, 11-first drying chamber, 12-second spraying chamber, 13-second drying chamber. The best embodiment of the present invention

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0020] As shown in Figure 1, the present invention provides a production line for manufacturing anti-icing wires, comprising: a first cleaning device 6; a wire sandblasting machine 7 disposed at the output end of the first cleaning device 6; a second cleaning device 8 disposed at the output end of the wire sandblasting machine 7; a wire coiling device 9 disposed at the output end of the second cleaning device 8; a first spraying chamber 10 disposed at the output end of the wire coiling device 9; a first drying chamber 11 disposed at the output end of the first spraying chamber 10; a second spraying chamber 12 disposed at the output end of the second spraying chamber 12; and a second drying chamber 13 disposed at the output end of the second drying chamber 13.

[0021] Preferably, both the first drying chamber 11 and the second drying chamber 13 are at a high temperature of 40±5℃.

[0022] Preferably, both the first drying chamber 11 and the second drying chamber 13 are in a low-pressure state below the standard atmospheric pressure.

[0023] As shown in Figure 2, this invention provides an anti-icing conductor, comprising: a conductor core 1; an inner aluminum wire 2 disposed on the outside of the conductor core 1; an outer aluminum wire 3 disposed on the outside of the inner aluminum wire 2; and an outer surface hydrophobic layer 5, made of hydrophobic material, disposed on the outside of the outer aluminum wire 3. Coating the conductor surface with a large amount of hydrophobic material reduces the capture rate of supercooled water droplets by the transmission line, reduces the adhesion between ice and the coating, and the superhydrophobic coating can also delay the freezing of water droplets on the coating surface, thereby achieving de-icing or anti-icing. It is particularly suitable for use in icing areas, providing excellent anti-icing performance.

[0024] Preferably, an outer surface groove 4 is formed on the outer side of the outer aluminum wire 3.

[0025] Preferably, the outer surface hydrophobic layer 5 has a double-layer structure.

[0026] Preferably, the inner layer of the outer surface hydrophobic layer 5 is a primer and the outer layer is a topcoat, wherein the topcoat is made of a hydrophobic material.

[0027] Based on the same design concept, this invention provides a method for manufacturing anti-icing conductors, comprising the following steps: First cleaning of the outer aluminum wire 3, using a first cleaning device 6 to remove stains from the surface of the outer aluminum wire 3; Processing outer surface grooves 4, using a conductor sandblasting machine 7 to process outer surface grooves 4 on the outer surface of the outer aluminum wire 3; Second cleaning of the outer aluminum wire 3, using a second cleaning device 8 to remove stains remaining after processing the outer surface grooves 4 by the conductor sandblasting machine 7; Organizing the conductor, using a coiling device 9 to organize the cleaned conductor; Primer spraying, applying primer to the conductor in a first spraying chamber 10; Primer drying chamber, performing a first drying of the primer-coated conductor in a first drying chamber 11; Topcoat spraying, applying topcoat to the conductor in a second spraying chamber 12; Topcoat drying chamber, performing a second drying of the topcoat-coated conductor in a second drying chamber 13. After drying, the anti-icing conductor is manufactured. A comparison diagram of the anti-icing conductor manufactured using conventional methods and the method of this invention, magnified 100 times, is shown in Figure 3.

[0028] Preferably, the drying time of the wire in the first drying chamber 11 and the second drying chamber 13 is not less than 40 minutes. Industrial applicability

[0029] This invention has been implemented and has industrial applicability.

Claims

1. A production line for manufacturing anti-icing conductors, characterized in that, include: First cleaning device (6); A wire sandblasting machine (7) is installed at the output end of the first cleaning device (6); The second cleaning device (8) is installed at the output end of the wire sandblasting machine (7); A coiling device (9) is installed at the output end of the second cleaning device (8); The first spraying chamber (10) is located at the output end of the coiling device (9); The first drying chamber (11) is located at the output end of the first spraying chamber (10); The second spraying chamber (12) is located at the output end of the second spraying chamber (12); The second drying chamber (13) is located at the output end of the second drying chamber (13).

2. The manufacturing production line as described in claim 1, characterized in that, Both the first drying chamber (11) and the second drying chamber (13) are in a high-temperature state of 40±5℃.

3. The manufacturing production line as described in claim 1, characterized in that, Both the first drying chamber (11) and the second drying chamber (13) are in a low-pressure state below the standard atmospheric pressure.

4. A method for manufacturing an anti-icing conductor, characterized in that, Includes the following steps: The first cleaning of the outer aluminum wire (3) was carried out by using the first cleaning device (6) to clean the stains on the surface of the outer aluminum wire (3); The outer surface groove (4) is processed by using a wire sandblasting machine (7) to process the outer surface groove (4) on the outer surface of the outer aluminum wire (3). The second cleaning of the outer aluminum wire (3) is carried out by using the second cleaning device (8) to clean the stains left when the wire sandblasting machine (7) processed the outer surface groove (4); Organize the wires by using the wire coiling device (9) to organize the cleaned wires; Primer spraying: The conductor is primed in the first spray booth (10); The primer spray drying chamber is used to dry the primer sprayed wires for the first time in the first drying chamber (11); Topcoat spraying: Topcoat is applied to the wires in the second spraying chamber (12); In the topcoat spraying drying chamber, the wires sprayed with topcoat are dried a second time in the second drying chamber (13). After drying is completed, the anti-icing wires are made.

5. The manufacturing method as described in claim 4, characterized in that, The drying time of the wire in the first drying chamber (11) and the second drying chamber (13) shall not be less than 40 minutes.

6. An anti-icing conductor, characterized in that, include: Core (1); Inner aluminum wire (2) is disposed on the outside of the wire core (1); The outer aluminum wire (3) is disposed on the outside of the inner aluminum wire (2); The outer surface hydrophobic layer (5) is made of hydrophobic material and is disposed on the outside of the outer aluminum wire (3).

7. The anti-icing conductor as described in claim 6, characterized in that, The outer surface groove (4) is formed on the outer side of the outer aluminum wire (3).

8. The anti-icing conductor as described in claim 6, characterized in that, The outer surface hydrophobic layer (5) has a double-layer structure.

9. The anti-icing conductor as described in claim 6, characterized in that, The inner layer of the hydrophobic layer (5) on the outer surface is a primer and the outer layer is a topcoat, wherein the topcoat is made of a hydrophobic material.

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