An automatic deicing device for overhead power transmission line conductors covered with ice

Abstract

The present invention discloses an automatic deicing device for overhead power transmission line conductors, belonging to the technical field of electric power and electrical engineering. The device comprises a main platform, a spacing adjustment component and a transmission line deicing component; the spacing adjustment component is arranged on the upper part of the main platform, and a group of the transmission line deicing components are respectively arranged on both sides of the upper part of the spacing adjustment component; the spacing of the two groups of the transmission line deicing components is adjusted by the spacing adjustment component according to the spacing of the two transmission line sections to be deiced, so that the transmission line deicing components can cover the transmission line to be deiced, and when the transmission line to be deiced is covered by the transmission line deicing components, the heating module of the transmission line deicing components is controlled to heat and de-ice. The present invention solves the problems of poor safety, low deicing efficiency, inability to cross obstacles and unstable effect existing in the traditional technology.

Description

Technical Field

[0001] The invention belongs to the technical field of electric power engineering, and in particular relates to an automatic deicing device for ice-covered conductors of overhead power transmission lines. Background Art

[0002] Deicing of transmission lines refers to the formation of ice covering conductors, insulators and towers due to the freezing of water caused by rain, snow or low temperatures in cold climates. This phenomenon may have a serious impact on the transmission system. The main hazards of icing of transmission lines include: if the line is too thick, the windward surface of the conductor will increase, the conductor load is easy to break, and the mechanical load of the tower is easy to break. After the insulator string is covered with ice, the insulation performance is greatly reduced, and single-phase grounding or phase-to-phase short circuit is prone to occur. After the line is covered with ice and faults such as pole collapse, wire breakage, and short circuit occur, it is particularly difficult to find the fault point and resume operation, so it is particularly important to pay attention to the thickness of the ice and melt and remove the ice in time.

[0003] At present, traditional deicing of transmission lines usually includes three methods:

[0004] First, the DC de-icing method is one of the most mature methods currently. It uses an external DC device to short-circuit the transmission line, thereby generating hundreds or even thousands of short-circuit currents to achieve the purpose of rapid de-icing. However, the DC de-icing device is expensive and takes a long time to prepare. At the same time, when the ice is extremely uneven, the DC de-icing method is used for the entire line, which will cause the ground wire in the thinner ice area to overheat or even burn out, leading to secondary accidents.

[0005] Second, mechanical vibration deicing is to apply high stress impact loads to the ice-covered lines to break the ice layer and make the ice fall off. However, this method has low ice melting efficiency and is only suitable for transmission lines with low height and small ice coverage.

[0006] Third, the artificial de-icing method is mainly for 35KV and 10KV lines, short-distance, partial or local ice melting, etc., including bamboo pole beating ice melting, rope swing ice melting and pulley moving ice melting. Bamboo pole beating ice melting is to directly use bamboo poles to knock the wires, and the wires vibrate and the ice and snow fall off. The advantages of bamboo pole beating ice melting are that there is no need to use poles, the safety risk is small, the technical content is low, the speed is fast, and multiple people and multiple gears can be put into work at the same time. The disadvantage is that it is only suitable for lines close to the ground. At the same time, the overall labor force of manual de-icing is large, it is difficult to continue operation, and it is limited to outdoor scenes, with high technical requirements and high risks.

[0007] In summary, it is necessary to develop a technical solution for automatic de-icing of ice-covered conductors of overhead transmission lines. Summary of the invention

[0008] To this end, the present invention provides an automatic deicing device for overhead power line conductors to solve the problems of poor safety, low ice removal efficiency, inability to cross obstacles and unstable effect existing in traditional technologies.

[0009] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: an automatic deicing device for overhead power transmission line conductors, comprising a main platform, a spacing adjustment component and a transmission line ice removal component; the spacing adjustment component is arranged on the upper part of the main platform, and a group of the transmission line ice removal components are respectively arranged on both sides of the upper part of the spacing adjustment component;

[0010] The spacing between the two groups of the transmission line ice removal components is adjusted by the spacing adjustment component according to the spacing between the two transmission line sections to be de-iced, so that the transmission line ice removal components can cover the transmission line to be de-iced. When the transmission line to be de-iced is covered by the transmission line ice removal components, the heating module of the transmission line ice removal components is controlled to heat and de-ice;

[0011] During the heating and deicing process of the transmission line, the control model for the heating time and heating temperature range is as follows:

[0012] Assume the ambient temperature is T e , the ice thickness is d, the heating time is t, and the lower limit of the heating temperature range is T min , the upper limit is T max , assuming that the heat transferred per unit area per unit time is proportional to the temperature difference, and the proportionality coefficient is k; then the total heat Q is:

[0013] Q=k×(T avg -T e )×t×A

[0014] The amount of heat required to melt the ice layer Q m It is related to the thickness of the ice layer d, the latent heat of melting of the ice L, and the heating area A of the transmission line:

[0015] Q m =d×L×A

[0016] Let Q = Q m , we can get:

[0017] k×(T avg -T e )×t×A=d×L×A

[0018] That is, the heating time of the transmission line to remove ice is:

[0019]

[0020] Where, Tavg is the average heating temperature, i.e. T avg =(T min +T max ) / 2, A is the heating area of ​​the transmission line;

[0021] Taking into account heat loss, unevenness of the ice layer, and ambient wind speed, the heating time of the transmission line de-icing process is corrected and optimized through experimental data.

[0022] As a preferred solution of the automatic deicing device for overhead power transmission line conductors, it also includes a protective housing, a side of which is formed with an avoidance notch; the protective housing is buckled on the top of the spacing adjustment component in an inverted U shape;

[0023] A battery box is provided at the upper end of the protective housing, the battery box is electrically connected to the power transmission line ice removal assembly, and the battery box is used to supply power to the heating module of the power transmission line ice removal assembly;

[0024] A solar energy conversion panel is also provided at the upper end of the protective housing. The solar energy conversion panel is electrically connected to the battery box, and the solar energy conversion panel is used to supply power to the battery box.

[0025] As a preferred solution for the automatic de-icing device for ice-coated conductors of overhead transmission line, the upper end of the protective casing is also fixedly connected to a plurality of groups of traction hooks; the automatic de-icing device for ice-coated conductors of overhead transmission line is suspended to a drone via the traction hooks, and the automatic de-icing device for ice-coated conductors of overhead transmission line is transferred to the transmission line section where the ice is to be removed by controlling the flight state of the drone.

[0026] As a preferred solution of the automatic deicing device for overhead power transmission line conductors, the spacing adjustment assembly includes two pairs of crossbeam rails arranged in parallel and located on the upper end surface of the main platform, and two pairs of linear guide rails are arranged on the upper end surface of each pair of crossbeam rails;

[0027] The four pairs of linear guide rails are distributed in a rectangular shape, and a guide rail slider is slidably arranged on each pair of linear guide rails; the upper end surfaces of the two pairs of guide rail sliders adjacent to each other on the same side jointly support a platform plate;

[0028] Two bearing seats are installed on the upper end surface of each platform plate, and the power transmission line ice removal assembly is arranged on the upper end surfaces of two adjacent bearing seats.

[0029] As a preferred solution of the automatic deicing device for overhead power transmission line conductors, a center plate is provided at the middle section of the two pairs of crossbeam rails, a center bearing member is installed at the upper end of the center plate, a rotating plate is provided above the center bearing member, both ends of the rotating plate are connected to a first rotating shaft member, and the two first rotating shaft members are symmetrically distributed along the center of the rotating plate;

[0030] The platform plate is equipped with a second rotating shaft; a sleeve connecting rod is provided between the second rotating shaft and the adjacent first rotating shaft; one end of the sleeve connecting rod is sleeved with the first rotating shaft, and the other end of the sleeve connecting rod is sleeved with the second rotating shaft.

[0031] As a preferred solution for the automatic de-icing device for ice-coated conductors of overhead power transmission lines, the spacing adjustment assembly also includes two transverse tubes installed on the upper end surface of the main platform, and linear motors are installed on the upper end surfaces of the two transverse tubes. The output ends of the two linear motors are arranged in the same direction, and the output ends of the two linear motors are connected to motor drive shafts, and the ends of the two motor drive shafts are connected to the sides of the adjacent bearing seats.

[0032] As a preferred solution for an automatic de-icing device for ice-coated conductors of overhead power transmission lines, the transmission line de-icing assembly includes a bottom beam seat supported on two supporting seats on the same side, a truss is provided on the upper end surface of the bottom beam seat, a plurality of sleeves are connected to the side surfaces of the truss, an extension rod is slidably provided inside each of the sleeves, a connecting ring is connected to the end of the extension rod, a compression spring is commonly sleeved on the outside of the extension rod and the sleeve, one end of the compression spring contacts the connecting ring, and the other end of the compression spring contacts the truss.

[0033] As a preferred solution for the automatic de-icing device for ice-coated conductors of overhead power transmission lines, the ends of several of the connecting rings are commonly connected to a first interlocking heating seat, the bottom of the first interlocking heating seat is connected to a rotating hinge, the first interlocking heating seat is hinged to a second interlocking heating seat through the rotating hinge, and the second interlocking heating seat and the first interlocking heating seat form a cavity for accommodating the power transmission line.

[0034] As a preferred solution of the automatic deicing device for overhead power line conductors, the inner walls of the first occlusal heating seat and the second occlusal heating seat are both installed with the heating module, and a plurality of electric heating wires are arranged in the heating module;

[0035] Strong magnets are installed at the upper interfaces of the first occlusal heating seat and the second occlusal heating seat, and the first occlusal heating seat and the second occlusal heating seat are attracted by the strong magnets.

[0036] As a preferred solution of the automatic deicing device for overhead power transmission line conductors, the heating module is further configured with a temperature sensor and a PLC controller, the temperature sensor and the PLC controller are electrically connected, and the PLC controller controls the heating temperature range of the electric heating wire through the temperature sensor;

[0037] When the heating temperature of the electric heating wire exceeds the set temperature upper limit threshold, the electric heating wire is controlled to stop heating; when the heating temperature of the electric heating wire exceeds the set temperature lower limit threshold, the electric heating wire is controlled to start heating.

[0038] The present invention has the following advantages:

[0039] By means of the mutual movement cooperation between the set spacing adjustment components and the transmission line ice removal components, the transmission line ice removal components assembled on the two sets of spacing adjustment components can be freely adjusted according to the spacing between the two transmission line sections, so as to adapt to transmission lines of various types and specifications; this spacing adjustable design ensures that transmission lines, whether densely arranged or arranged at a wide distance, can be effectively covered by the transmission line ice removal components and evenly heated, thereby increasing the single contact length and improving the ice removal work efficiency. At the same time, compared with the traditional manual ice removal operation and the existing ice removal device, the present invention can perform ice removal processing and increase the single contact length without power outage through the above-mentioned external heating method, thereby greatly shortening the entire operation time and improving the work efficiency;

[0040] By precisely adjusting the spacing between the two groups of transmission line de-icing components, and cooperating with the elastic adaptive adjustment of the transmission line de-icing components themselves, when the transmission line de-icing components are performing mobile de-icing operations on the transmission lines, the heating elements in the transmission line de-icing components will not cause the problem of excessive local temperature due to unreasonable installation positions, which can improve the stability of the overall de-icing operation. At the same time, by cooperating with the heating temperature control of the electric heating wire in the transmission line de-icing components, when the de-icing operation is performed on the transmission lines, it is ensured that each transmission line conductor can obtain a sufficient and balanced heating effect, avoiding local overheating and thus damage;

[0041] Through the mutual movement and coordination of multiple structures in the power transmission line ice removal assembly, the first interlocking heating seat and the second interlocking heating seat can be interlocked to wrap the power transmission line therebetween. When the electric heating wire generates heat, the power transmission line can be heated by connecting the electric heating wire and the heating module. The interlocking setting of the first interlocking heating seat and the second interlocking heating seat can adapt to power transmission lines of different diameters and shapes. At the same time, when encountering obstacles such as spacer bars, the interlocking of the heating seat can be controlled remotely to cross obstacles such as spacer bars. It is easy to install and disassemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0043] Figure 1 It is a schematic diagram of the overall structure of an automatic deicing device for overhead power transmission line conductors provided in an embodiment of the present invention;

[0044] Figure 2 A schematic diagram of the combined structure of a spacing adjustment component and a power transmission line ice removal component provided in an embodiment of the present invention;

[0045] Figure 3 A schematic diagram of the installation structure of the battery box and the protective housing provided in an embodiment of the present invention;

[0046] Figure 4 A schematic diagram of the structure of a spacing adjustment component provided in an embodiment of the present invention;

[0047] Figure 5 A schematic diagram of the connection between the sleeve connecting rod and the platform plate in the spacing adjustment assembly provided in an embodiment of the present invention;

[0048] Figure 6 A schematic diagram of the installation structure of an ice removal assembly for a power transmission line provided in an embodiment of the present invention;

[0049] Figure 7 Schematic diagram of the peripheral structure of the electric heating wire provided in an embodiment of the present invention.

[0050] In the figure, 1. main platform; 2. spacing adjustment component; 3. transmission line ice removal component; 4. protective casing; 5. avoidance gap; 6. battery box; 7. solar energy conversion panel; 8. traction hook; 9. beam rail; 10. linear guide rail; 11. platform plate; 12. bearing seat; 13. center plate; 14. center bearing member; 15. rotating plate; 16. first rotating shaft member; 17. second rotating shaft member; 18. sleeve connecting rod; 19. cross tube; 20. linear motor; 21. motor drive shaft; 22. bottom beam seat; 23. truss; 24. sleeve; 25. extension rod; 26. connecting ring; 27. compression spring; 28. first interlocking heating seat; 29. ​​rotating hinge shaft; 30. second interlocking heating seat; 31. cavity; 32. electric heating wire; 33. strong magnet; 34. guide rail slider; 35. heating module. DETAILED DESCRIPTION

[0051] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] See also Figure 1 and Figure 2 The embodiment of the present invention provides an automatic deicing device for overhead power transmission line conductors, comprising a main platform 1, a spacing adjustment component 2 and a transmission line ice removal component 3; the spacing adjustment component 2 is arranged on the upper part of the main platform 1, and a group of transmission line ice removal components 3 are respectively arranged on both sides of the upper part of the spacing adjustment component 2;

[0053] Among them, the spacing between the two groups of transmission line ice removal components 3 is adjusted according to the spacing between the two transmission line sections to be de-iced by the spacing adjustment component 2, so that the transmission line ice removal component 3 can cover the transmission line to be de-iced. When the transmission line to be de-iced is covered by the transmission line ice removal component 3, the heating module 35 of the transmission line ice removal component 3 is controlled to heat and de-ice.

[0054] In this embodiment, a protective casing 4 is also included, and an avoidance gap 5 is formed on the side of the protective casing 4; the protective casing 4 is in an inverted U shape and is buckled on the top of the spacing adjustment component 2; a battery box 6 is arranged at the upper end of the protective casing 4, and the battery box 6 is electrically connected to the transmission line ice removal component 3, and the battery box 6 is used to power the heating module 35 of the transmission line ice removal component 3.

[0055] See also Figure 1 , Figure 2 and Figure 3 Specifically, in actual use, through the mutual movement cooperation between the spacing adjustment component 2 and the two groups of transmission line ice removal components 3, the transmission line ice removal components 3 assembled on the two groups of spacing adjustment components 2 can be freely adjusted according to the spacing between the two transmission line sections, so as to adapt to various types and specifications of transmission lines; the adjustable spacing design ensures that whether the transmission lines are densely arranged or arranged at a wider distance, they can be effectively covered by the transmission line ice removal components 3 and evenly heated, thereby improving the efficiency of ice removal work.

[0056] Compared with the traditional power outage ice-melting method, this embodiment uses the mobile power supply operation of the battery box 6 and the heating operation of the transmission line ice removal component 3. Through external heating, ice removal can be performed without power outage, thereby greatly shortening the entire operation time and improving work efficiency. The use of mobile heating can avoid large-scale impacts caused by power outages and ensure the stability of user electricity consumption.

[0057] In this embodiment, the upper end of the protective casing 4 is also fixedly connected to a plurality of groups of traction hooks 8; the automatic de-icing device for the conductors of the overhead transmission line is suspended to the drone through the traction hooks 8, and the automatic de-icing device for the conductors of the overhead transmission line is transferred to the transmission line section where the ice is to be removed by controlling the flight state of the drone.

[0058] See also Figure 1 and Figure 2 Due to the mobility of deicing the transmission line, multiple groups of traction hooks 8 are installed on the top of the main platform 1, so that the transmission line deicing device can be quickly connected to the drone, so that the drone can be suspended and towed to facilitate deicing of the transmission line section. This feature significantly improves the adaptability of the workplace, and the suspension and traction of the drone greatly reduces the pressure of the staff working under adverse weather conditions, and can effectively reduce the risk of personal injury caused by slips or other accidents, and provide a safer and more reliable working environment for on-site employees. In addition, the drone has good mobility and can flexibly shuttle between various positions of the transmission line. The deicing of the line is removed by suspending and towing the transmission line deicing removal component 3. Compared with traditional mechanical equipment that is difficult to handle the problem of icing across the spacer, the present invention can suspend the entire device through the drone to cross obstacles and remove the ice on the entire line, thereby increasing the scope of application, especially for large-span lines under complex terrain such as mountains and canyons, greatly improving the utilization rate of the equipment.

[0059] See also Figure 4 and Figure 5In this embodiment, considering that the distances between two transmission lines in the same section are different, in order to adapt to the transmission lines with different distances in the same section, the distance adjustment component 2 includes two pairs of crossbeam rails 9 which are arranged in parallel and located on the upper end surface of the main platform 1, and two pairs of linear guide rails 10 are arranged on the upper end surface of each pair of crossbeam rails 9; the four pairs of linear guide rails 10 are distributed in a rectangular shape, and a guide slider 34 is slidably arranged on each pair of linear guide rails 10; the upper end surfaces of the two adjacent pairs of guide sliders 34 on the same side jointly support a platform plate 11; two bearing seats 12 are installed on the upper end surface of each platform plate 11, and the transmission line ice removal component 3 is arranged On the upper end surfaces of two adjacent bearing seats 12; a center plate 13 is provided at the middle section of the two auxiliary crossbeam rails 9, a center bearing member 14 is installed on the upper end of the center plate 13, a rotating plate 15 is provided above the center bearing member 14, both ends of the rotating plate 15 are connected with a first rotating shaft member 16, and the two first rotating shaft members 16 are symmetrically distributed along the center of the rotating plate 15; a second rotating shaft member 17 is installed on the platform plate 11; a sleeve connecting rod 18 is provided between the second rotating shaft member 17 and the adjacent first rotating shaft member 16; one end of the sleeve connecting rod 18 is sleeved with the first rotating shaft member 16, and the other end of the sleeve connecting rod 18 is sleeved with the second rotating shaft member 17. In addition, in order to improve the accuracy of line spacing adjustment and taking into account the stability and simple adjustment of line spacing adjustment, the spacing adjustment component 2 also includes two transverse tubes 19 installed on the upper end surface of the main platform 1, and the upper end surfaces of the two transverse tubes 19 are installed with linear motors 20, and the output ends of the two linear motors 20 are arranged in the same direction, and the output ends of the two linear motors 20 are connected to motor drive shafts 21, and the ends of the two motor drive shafts 21 are connected to the sides of adjacent supporting seats 12.

[0060] Specifically, through the connection between the platform plate 11 and the bearing seat 12 , in coordination with the sliding connection between the linear guide rail 10 and the guide rail slider 34 , the two bearing seats 12 can slide linearly above the main platform 1 . Through the connection between the linear motor 20 and the motor drive shaft 21, the sliding stroke of one group of the supporting seats 12 can be accurately controlled. In use, when the supporting seat 12 connected to the motor drive shaft 21 moves, since one end of the sleeve connecting rod 18 is sleeved with the first rotating shaft member 16, one end of the sleeve connecting rod 18 can rotate relative to the first rotating shaft member 16, and the other end of the sleeve connecting rod 18 is sleeved with the second rotating shaft member 17, and the other end of the sleeve connecting rod 18 can rotate relative to the second rotating shaft member 17. At the same time, the rotating plate 15 is rotated relative to the center plate 13 through the center bearing member 14, so that with the cooperation of the center bearing member 14, the rotating plate 15, the first rotating shaft member 16, the sleeve connecting rod 18 and the second rotating shaft member 17, the distance between the two groups of platform plates 11 of the spacing adjustment component 2 is adjusted, and the transmission line ice removal component 3 on the spacing adjustment component 2 can be adjusted outward or inward to adapt to various types and specifications of transmission lines.

[0061] Among them, during the cooperation process of the central bearing member 14, the rotating plate 15, the first rotating shaft member 16, the sleeve connecting rod 18 and the second rotating shaft member 17, when the rotating plate 15 is rotating, the sleeve connecting rod 18 rotates relative to the first rotating shaft member 16 and the second rotating shaft member 17 in cooperation with the rotating plate 15 and the central bearing member 14, and can pull the bearing seat 12 to move synchronously. During this period, when the motor drive shaft 21 is in the push-out state, it drives the bearing seat 12 to move along the push-out direction of the motor drive shaft 21, so that the distance between the two sets of platform plates 11 of the spacing adjustment component 2 is expanded. Similarly, when the motor drive shaft 21 is in the pull-back state, the distance between the two sets of platform plates 11 of the spacing adjustment component 2 is reduced. Therefore, by adjusting the spacing of the two sets of transmission line ice removal components 3 at the same time, the two adjacent transmission lines can be covered by the transmission line ice removal components 3, so as to achieve heating and finally achieve the effect of ice removal.

[0062] See also Figure 6 and Figure 7 In this embodiment, in order to heat and remove ice on the outside of the transmission cable, the transmission line ice removal component 3 includes a bottom beam seat 22 supported on two supporting seats 12 on the same side, a truss 23 is provided on the upper end surface of the bottom beam seat 22, and a plurality of sleeves 24 are connected to the side of the truss 23. An extension rod 25 is slidably provided inside each sleeve 24, and a connecting ring 26 is connected to the end of the extension rod 25. A compression spring 27 is commonly sleeved on the outside of the extension rod 25 and the sleeve 24, and one end of the compression spring 27 contacts the connecting ring 26, and the other end of the compression spring 27 contacts the connecting ring 26. One end contacts the truss 23; the ends of several connecting rings 26 are commonly connected to a first interlocking heating seat 28, the bottom of the first interlocking heating seat 28 is connected to a rotating hinge shaft 29, the first interlocking heating seat 28 is hinged to a second interlocking heating seat 30 through the rotating hinge shaft 29, and the second interlocking heating seat 30 and the first interlocking heating seat 28 form a cavity 31 for accommodating a power transmission line; the inner walls of the first interlocking heating seat 28 and the second interlocking heating seat 30 are both installed with a heating module 35, and a plurality of electric heating wires 32 are arranged in the heating module 35.

[0063] Specifically, the operator precisely adjusts the distance between the two bearing seats 12 according to the distance between the transmission lines until the transmission line ice removal assembly 3 installed on the bearing seat 12 abuts against the transmission line. Since the sleeve 24 and the extension rod 25 in the transmission line ice removal assembly 3 are in a sliding state and are elastically adjusted by the compression spring 27, the first engaging heating seat 28 can always be in an elastic moving state. At the same time, the first engaging heating seat 28 and the second engaging heating seat 30 can be opened or engaged by rotating the hinge shaft 29.

[0064] Among them, in order to heat the transmission line and realize the de-icing of the transmission line, a heating module 35 is installed inside the first interlocking heating seat 28 and the second interlocking heating seat 30, and a plurality of electric heating wires 32 are distributed inside the heating module 35; strong magnets 33 are also installed on the upper side of the first interlocking heating seat 28 and the second interlocking heating seat 30, and the two strong magnets 33 are connected by magnetic attraction. When the first interlocking heating seat 28 and the second interlocking heating seat 30 clamp and wrap the transmission line, the electric heating wires 32 set in the heating module 35 are controlled to be heated, so that the heating module 35 is heated by the electric heating wires 32, so as to realize further heating of the transmission line, and finally realize the de-icing of the transmission line. During this period, the heating module 35 is preferably made of rubber material.

[0065] In a possible embodiment, a strong magnet 33 is arranged on the side of the first interlocking heating seat 28 and the second interlocking heating seat 30, so that the first interlocking heating seat 28 and the second interlocking heating seat 30 can be magnetically connected, and the rotating hinge 29 is used to rotate with the first interlocking heating seat 28 and the second interlocking heating seat 30, so that the U-shaped cavity 31 formed between the first interlocking heating seat 28 and the second interlocking heating seat 30 can be engaged. When the first interlocking heating seat 28 and the second interlocking heating seat 30 are in engagement, the power transmission line can be always clamped therebetween, thereby effectively preventing the power transmission line from slipping when the first interlocking heating seat 28 and the second interlocking heating seat 30 are moving, and it is also more portable when the power transmission line needs to be installed.

[0066] In a possible embodiment, taking into account that the power transmission line will vibrate when moving, in order to avoid the failure of the engagement between the first engagement heating seat 28 and the second engagement heating seat 30, the two strong magnets 33 can be further managed by using electromagnets for engagement, so that the power transmission line can be better wrapped and heated.

[0067] In a possible embodiment, the electric heating wire 32 is arranged in an array along the inside of the heating module 35. At the same time, the heating module 35 is also equipped with a temperature sensor and a PLC controller. The temperature sensor and the PLC controller are electrically connected. The PLC controller controls the heating temperature range of the electric heating wire 32 through the temperature sensor; when the heating temperature of the electric heating wire 32 exceeds the set upper temperature threshold, the electric heating wire 32 is controlled to stop heating, and when the heating temperature of the electric heating wire 32 exceeds the set lower temperature threshold, the electric heating wire 32 is controlled to start heating. Thus, the heating temperature range of the electric heating wire 32 can be controlled by the PLC controller and the temperature sensor. By setting the minimum heating threshold and the maximum heating threshold, when the heating temperature exceeds the set threshold, the electric heating wire 32 can stop heating. Similarly, when the heating temperature is lower than the minimum threshold, the heating can be started.

[0068] Among them, through the coordinated control of the PLC controller and the temperature sensor, the precise temperature range management of the electric heating wire 32 can be achieved, so as to efficiently and safely complete the deicing task of the transmission line. It not only improves the deicing effect and equipment reliability, but also significantly reduces energy consumption and maintenance costs, and provides a strong guarantee for the long-term stable operation of the transmission line. At the same time, it is monitored in real time by the temperature sensor and dynamically adjusted by the PLC controller to ensure that the heating temperature is always in the effective deicing range. Compared with the traditional deicing method, the deicing can be performed on the ice-covered line section separately, and the deicing operation can be strengthened for the road section with more severe deicing. Through the control of the heating temperature range, the road section with severe deicing can be heated at a high temperature, thereby greatly improving the deicing efficiency and ensuring that the deicing can be quickly and thoroughly removed. In addition, when the deicing operation is performed on the transmission line, it is ensured that each transmission line conductor can obtain a sufficient and balanced heating effect to avoid local overheating and damage.

[0069] In a possible embodiment, during the process of heating and deicing the transmission line, the control model of the heating time and the heating temperature range is as follows:

[0070] Assume the ambient temperature is T e , the ice thickness is d, the heating time is t, and the lower limit of the heating temperature range is T min , the upper limit is T max , assuming that the heat transferred per unit area per unit time is proportional to the temperature difference, and the proportionality coefficient is k. Then the total heat Q is:

[0071] Q=k×(T avg -T e )×t×A

[0072] The amount of heat required to melt the ice layer Q mIt is related to the thickness of the ice layer d, the latent heat of melting of the ice L, and the heating area A of the transmission line:

[0073] Q m =d×L×A

[0074] Let Q = Q m , we can get:

[0075] k×(T avg -T e )×t×A=d×L×A

[0076] That is, the heating time of the transmission line to remove ice is:

[0077]

[0078] Where, T avg is the average heating temperature, i.e. T avg =(T min +T max ) / 2, A is the heating area of ​​the transmission line.

[0079] Among them, for the heating temperature range, a reasonable range can be determined based on factors such as the performance of the heating module 35, energy consumption, deicing efficiency, etc. For example, the lower limit T can be set min is the lowest temperature at which the heating module 35 can effectively melt ice, and the upper limit T max It is the highest safe temperature that the heating module 35 can withstand or the optimal temperature considering energy efficiency. In addition, heat loss, unevenness of ice layer, ambient wind speed, etc. can also be considered to correct and optimize the heating time of the transmission line heating and deicing process through experimental data.

[0080] In a possible embodiment, the power supply of the electric heating wire 32 comes from the electric energy stored in the battery box 6, and the battery box 6 is electrically connected to the electric heating wire 32 through a wire. At the same time, a power conversion device is integrated in the battery box 6, so as to realize the power supply to the electric heating wire 32. In use, the power connection method of the battery box 6 and the electric heating wire 32 is the existing technology, and the control circuit can be realized by simple programming by technicians in this field, which belongs to the common knowledge in this field. It is only used without modification, so the control method and circuit connection are not described in detail.

[0081] In a possible embodiment, a solar energy conversion panel 7 is further provided at the upper end of the protective casing 4 . The solar energy conversion panel 7 is electrically connected to the battery box 6 . The solar energy conversion panel 7 is used to supply power to the battery box 6 .

[0082] Specifically, considering the long distance of the ice-covered line, a solar energy conversion panel 7 is also arranged above the protective housing 4. By electrically connecting the solar energy conversion panel 7 with the battery box 6, the solar energy conversion panel 7 can collect sunlight for electrical conversion, thereby storing electricity in the battery box 6. In use, the battery box 6 is integrated with structural parts connected to the solar energy conversion panel 7 for power supply, including but not limited to inverters, junction boxes, fuses and circuit breaker structural parts. The power supply connection method of the solar energy conversion panel 7 and the battery box 6 is the existing technology, and the control circuit can be realized by simple programming by technicians in this field, which belongs to the common knowledge in this field. It is only used without modification, so the control method and circuit connection are not described in detail. Therefore, by combining the solar energy conversion panel 7 and the battery box 6, an efficient, reliable and environmentally friendly solution is provided for the power supply of the transmission line ice removal component 3, which not only improves the independence of the operation of the ice removal equipment, but also ensures that the ice removal heating system always maintains a normal operating state. It can also meet the special needs of remote areas and extreme weather conditions, thus having significant advantages in practical applications; compared with the ice removal method under the existing technology, through reliable power supply, it ensures that the transmission line ice removal component 3 can be started in time at the critical moment of ice formation, avoiding major accidents such as transmission line breakage and collapse caused by ice accumulation, thereby improving the operation stability of the transmission line under extreme weather conditions and ensuring the safety of power supply.

[0083] In summary, the present invention enables the two supporting seats 12 to slide linearly above the main platform 1 through the connection between the platform plate 11 and the supporting seats 12, in conjunction with the sliding connection between the linear guide rail 10 and the guide rail slider 34. The sliding stroke of one group of supporting seats 12 can be accurately controlled through the connection between the linear motor 20 and the motor drive shaft 21. In use, when the supporting seat 12 connected to the motor drive shaft 21 moves, one end of the sleeve connecting rod 18 is sleeved with the first rotating shaft member 16, and one end of the sleeve connecting rod 18 can rotate relative to the first rotating shaft member 16, and the other end of the sleeve connecting rod 18 is sleeved with the second rotating shaft member 17, and the other end of the sleeve connecting rod 18 can rotate relative to the second rotating shaft member 17. When the rotating plate 15 is in During the rotation, the sleeve connecting rod 18 rotates relative to the first rotating shaft 16 and the second rotating shaft 17 in coordination with the rotating plate 15 and the central bearing member 14, and can pull the bearing seat 12 to move synchronously. During this period, when the motor drive shaft 21 is in the push-out state, the bearing seat 12 is driven to move along the push-out direction of the motor drive shaft 21, so that the distance between the two sets of platform plates 11 of the spacing adjustment component 2 is expanded. Similarly, when the motor drive shaft 21 is in the pull-back state, the distance between the two sets of platform plates 11 of the spacing adjustment component 2 is reduced. Thus, the distance between the two sets of power transmission line ice removal components 3 is adjusted simultaneously. The operator precisely adjusts the distance between the two bearing seats 12 according to the distance between the power transmission lines until the power transmission line ice removal component 3 installed on the bearing seat 12 is against the power transmission line. Since the sleeve 24 and the extension rod 25 in the power transmission line ice removal component 3 are in a sliding state and are elastically adjusted by the compression spring 27, the first engaging heating seat 28 can always be in an elastic moving state. At the same time, the first interlocking heating seat 28 and the second interlocking heating seat 30 can be opened or interlocked by rotating the hinge shaft 29. In order to heat the transmission line and remove the ice from the transmission line, a heating module 35 is installed inside the first interlocking heating seat 28 and the second interlocking heating seat 30, and a plurality of electric heating wires 32 are distributed inside the heating module 35; strong magnets 33 are also installed on the upper side of the first interlocking heating seat 28 and the second interlocking heating seat 30, and the two strong magnets 33 are connected by magnetic attraction. When the first interlocking heating seat 28 and the second interlocking heating seat 30 clamp and wrap the transmission line, the electric heating wires 32 set in the heating module 35 are controlled to be heated, so that the heating module 35 is heated by the electric heating wires 32, so as to further heat the transmission line and finally remove the ice from the transmission line.The present invention provides a spacing adjustment component 2 and a transmission line ice removal component 3, which are provided with mutual movement cooperation, so that the transmission line ice removal component 3 assembled on the two groups of spacing adjustment components 2 can be freely adjusted according to the spacing between the two transmission line sections, so as to adapt to various types and specifications of transmission lines; this adjustable spacing design ensures that the transmission lines, whether densely arranged or arranged at a wider distance, can be effectively covered by the transmission line ice removal component 3 and evenly heated, thereby increasing the single contact length and improving the efficiency of ice removal. At the same time, compared with the traditional manual ice removal operation and the existing ice removal device, the present invention can perform ice removal processing and increase the single contact length without power outage through the above-mentioned external heating method, thereby greatly shortening the entire operation time and improving work efficiency; the present invention adjusts the spacing between the two groups of transmission line ice removal components 3 precisely, and cooperates with the elastic adaptive adjustment of the transmission line ice removal component 3 itself, so that when the transmission line ice removal component 3 performs mobile ice removal operation on the transmission line, The heating element in the transmission line ice removal component 3 will not cause the problem of local overtemperature due to unreasonable installation position, which can improve the stability of the overall ice removal operation. At the same time, the heating temperature control of the electric heating wire 32 in the transmission line ice removal component 3 ensures that each transmission line conductor can obtain a sufficient and balanced heating effect when the transmission line is de-iced, avoiding local overheating and thus damage. The present invention cooperates with the mutual movement of multiple structures in the transmission line ice removal component 3. The first interlocking heating seat 28 and the second interlocking heating seat 30 are interlocked to wrap the power transmission line therebetween. When the electric heating wire 32 generates heat, the power transmission line can be heated by connecting the electric heating wire 32 and the heating module 35. The interlocking setting of the first interlocking heating seat 28 and the second interlocking heating seat 30 allows it to adapt to power transmission lines of different diameters and shapes. At the same time, when encountering obstacles such as spacer bars, the interlocking of the heating seat can be remotely controlled to cross obstacles such as spacer bars. It is easy to install and disassemble.

[0084] Although the present invention has been described in detail above by general description and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention all belong to the scope of protection claimed by the present invention.

Claims

1. An automatic deicing device for overhead power line conductors, characterized in that: The invention comprises a main platform (1), a spacing adjustment component (2) and a power transmission line ice removal component (3); the spacing adjustment component (2) is arranged on the upper part of the main platform (1), and a group of the power transmission line ice removal components (3) are respectively arranged on both sides of the upper part of the spacing adjustment component (2); The spacing between the two groups of the transmission line ice removal components (3) is adjusted by the spacing adjustment component (2) according to the spacing between the two transmission line sections to be de-iced, so that the transmission line ice removal components (3) cover the transmission line to be de-iced; when the transmission line to be de-iced is covered by the transmission line ice removal components (3), the heating module (35) of the transmission line ice removal components (3) is controlled to heat and de-ice; During the heating and deicing process of the transmission line, the control model for the heating time and heating temperature range is as follows: Assume the ambient temperature is T e , the ice thickness is d, the heating time is t, and the lower limit of the heating temperature range is T min , the upper limit is T max , assuming that the heat transferred per unit area per unit time is proportional to the temperature difference, and the proportionality coefficient is k; then the total heat Q is: Q=k×(T avg -T e )×t×A The amount of heat required to melt the ice layer Q m It is related to the ice thickness d, the latent heat of melting L and the heating area A of the transmission line: Q m =d×L×A Let Q = Q m , we can get: k×(T avg -T e )×t×A=d×L×A That is, the heating time of the transmission line to remove ice is: Where, T avg is the average heating temperature, i.e. T avg =(T min +T max ) / 2, A is the heating area of ​​the transmission line; Considering heat loss, unevenness of ice layer, and ambient wind speed, the heating time of the transmission line heating and deicing process is corrected and optimized through experimental data; The spacing adjustment component (2) comprises two pairs of crossbeam rails (9) arranged in parallel and located on the upper end surface of the main platform (1), and the upper end surface of each pair of crossbeam rails (9) is provided with two pairs of linear guide rails (10); The four pairs of linear guide rails (10) are distributed in a rectangular shape, and a guide rail slider (34) is slidably arranged on each pair of linear guide rails (10); the upper end surfaces of two pairs of adjacent guide rail sliders (34) on the same side jointly support a platform plate (11); Two bearing seats (12) are installed on the upper end surface of each platform plate (11), and the power transmission line ice removal assembly (3) is arranged on the upper end surfaces of two adjacent bearing seats (12); A center plate (13) is provided at the middle section of the two pairs of crossbeam rails (9), a center bearing member (14) is installed at the upper end of the center plate (13), a rotating plate (15) is provided above the center bearing member (14), both ends of the rotating plate (15) are connected to a first rotating shaft member (16), and the two first rotating shaft members (16) are symmetrically distributed along the center of the rotating plate (15); The platform plate (11) is provided with a second rotating shaft (17); a sleeve connecting rod (18) is provided between the second rotating shaft (17) and the adjacent first rotating shaft (16); one end of the sleeve connecting rod (18) is sleeved with the first rotating shaft (16), and the other end of the sleeve connecting rod (18) is sleeved with the second rotating shaft (17); The spacing adjustment assembly (2) further comprises two transverse tubes (19) mounted on the upper end surface of the main platform (1), the upper end surfaces of the two transverse tubes (19) are both mounted with linear motors (20), the output ends of the two linear motors (20) are arranged in the same direction, the output ends of the two linear motors (20) are both connected to motor drive shafts (21), and the ends of the two motor drive shafts (21) are both connected to the side portions of the adjacent bearing seats (12); The power transmission line ice removal assembly (3) comprises a bottom beam seat (22) supported on two support seats (12) on the same side, a truss (23) is arranged on the upper end surface of the bottom beam seat (22), a plurality of sleeves (24) are connected to the side of the truss (23), an extension rod (25) is slidably arranged inside each sleeve (24), a connecting ring (26) is connected to the end of the extension rod (25), a compression spring (27) is commonly sleeved on the outside of the extension rod (25) and the sleeve (24), one end of the compression spring (27) contacts the connecting ring (26), and the other end of the compression spring (27) contacts the truss (23).

2. The automatic deicing device for overhead power line conductors according to claim 1, characterized in that: It also comprises a protective casing (4), a side of which is formed with an avoidance notch (5); the protective casing (4) is buckled on the top of the spacing adjustment component (2) in an inverted U shape; A battery box (6) is provided at the upper end of the protective housing (4), the battery box (6) is electrically connected to the power transmission line ice removal assembly (3), and the battery box (6) is used to supply power to the heating module (35) of the power transmission line ice removal assembly (3); A solar energy conversion panel (7) is also provided at the upper end of the protective casing (4); the solar energy conversion panel (7) is electrically connected to the battery box (6); and the solar energy conversion panel (7) is used to supply power to the battery box (6).

3. The automatic deicing device for overhead power line conductors according to claim 2, characterized in that: The upper end of the protective housing (4) is also fixedly connected to a plurality of groups of traction hooks (8); the automatic deicing device for overhead power line conductors coated with ice is suspended on a drone via the traction hooks (8); and the automatic deicing device for overhead power line conductors coated with ice is transferred to a transmission line section to be deiced by controlling the flight state of the drone.

4. The automatic deicing device for overhead power line conductors according to claim 1, characterized in that: The ends of the plurality of connecting rings (26) are commonly connected to a first interlocking heating seat (28); the bottom of the first interlocking heating seat (28) is connected to a rotating hinge shaft (29); the first interlocking heating seat (28) is hingedly connected to a second interlocking heating seat (30) via the rotating hinge shaft (29); the second interlocking heating seat (30) and the first interlocking heating seat (28) form a cavity (31) for accommodating a power transmission line inside.

5. The automatic deicing device for overhead power line conductors according to claim 4, characterized in that: The heating module (35) is installed on the inner wall of the first occlusal heating seat (28) and the second occlusal heating seat (30), and a plurality of electric heating wires (32) are arranged in the heating module (35); Strong magnets (33) are installed at the upper interfaces of the first occlusal heating seat (28) and the second occlusal heating seat (30), and the first occlusal heating seat (28) and the second occlusal heating seat (30) are attracted by the strong magnets (33).

6. The automatic deicing device for overhead power line conductors according to claim 5, characterized in that: The heating module (35) is further configured with a temperature sensor and a PLC controller, the temperature sensor and the PLC controller are electrically connected, and the PLC controller controls the heating temperature range of the electric heating wire (32) through the temperature sensor; When the heating temperature of the electric heating wire (32) exceeds a set upper temperature threshold, the electric heating wire (32) is controlled to stop heating; when the heating temperature of the electric heating wire (32) exceeds a set lower temperature threshold, the electric heating wire (32) is controlled to start heating.

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