Automatic deicing device for foot nails of power transmission tower

Abstract

The invention relates to the technical field of deicing devices for power transmission towers, in particular to an automatic deicing device for foot nails of a power transmission tower, which comprises an electromagnetic heating part and an electric cabinet. The device is reasonable and compact in structure and convenient to use, a dual-power-supply mode of photovoltaic power supply and an external power supply can be adopted, clean energy is provided for the device through the solar cell panel and the storage battery, existing energy is fully utilized, and energy conservation and emission reduction are achieved; the foot nails are heated through the electromagnetic induction coils wound at the tail ends of the thread parts of the foot nails, ice and snow covering the outer sides of the foot nails are melted, the heating efficiency is high, ice and snow melting can be conducted on all the foot nails at the same time, and the tower climbing efficiency of line rescue workers can be effectively improved; in the heating process, the foot nails are kept dry, the foot nails can quickly go down the tower after being overhauled and maintained, slipping and falling accidents of operators in the treading process are avoided, and the risk of going down the tower is greatly reduced.

Description

Technical Field

[0001] The invention relates to the technical field of deicing devices for power transmission iron towers, in particular to an automatic deicing device for foot spikes of power transmission iron towers. Background Art

[0002] The transmission tower is the support point of the overhead line. If one circuit is set up on the transmission tower, it is a single-circuit transmission tower, and if two circuits are set up on the transmission tower, it is a double-circuit transmission tower. A single circuit means that one load has one power supply circuit; a double circuit means that one load has two power supply circuits. In order to facilitate the staff to climb on the transmission tower during the inspection and maintenance process, foot spikes are usually installed on the main material of the tower along the direction of the conductor for the workers to climb.

[0003] When rare snowy weather occurs, it may cause large-scale power transmission lines to be covered with ice and power outages. In order to ensure the safety of electricity use and smoothly get through the snowy weather, transmission line rescue workers often need to climb towers in snowy weather. At this time, when the transmission tower is covered with ice, the foot nails fixed on the main material of the tower will also be covered with ice and snow, forcing the line rescue workers to knock the foot nails one by one to break the ice and snow, and then climb up one by one, resulting in slow tower climbing. In addition, the foot nails that are cleaned when climbing the tower will freeze and accumulate snow again in low temperature rain and snow weather, making it more difficult for line rescue workers to get off the tower after the inspection and maintenance work is completed, posing a huge safety hazard. Summary of the invention

[0004] The present invention provides an automatic deicing device for the foot spikes of a power transmission tower, which overcomes the shortcomings of the above-mentioned prior art and can effectively solve the problem that the foot spikes of the existing power transmission tower are easily frozen and snowed in rainy and snowy weather, making it difficult to climb the tower, seriously affecting the efficiency of the tower climbing operation, making it more difficult to get off the tower after inspection and maintenance, and posing great safety hazards.

[0005] The technical solution of the present invention is achieved through the following measures: an automatic deicing device for transmission tower foot nails, including an electromagnetic heating part and an electric control box, the electromagnetic heating part includes a plurality of electromagnetic induction coils connected in series, and each electromagnetic induction coil is fixedly installed on the outer side of the end of the threaded part of the corresponding foot nail; the electric control box is electrically connected to the electromagnetic heating part.

[0006] The following are further optimizations and / or improvements to the above technical solutions: The above-mentioned electric control box may include a box body, a PLC control unit, a wireless signal receiving unit, a wireless signal transmitting unit and an online monitoring unit. The PLC control unit, the wireless signal receiving unit and the wireless signal transmitting unit are fixedly installed in the box body, and the PLC control unit is electrically connected to the electromagnetic heating part, the wireless signal receiving unit and the wireless signal transmitting unit respectively.

[0007] The electric control box may further include an online monitoring unit capable of monitoring the heating condition of the electric heating unit and the surrounding environment.

[0008] The above may also include a solar panel, a battery and an inverter. The inverter is electrically connected to the solar panel, the battery and the electromagnetic heating unit respectively. The solar panel is also electrically connected to the electric control box and the battery respectively.

[0009] Each of the electromagnetic induction coils can be fixedly mounted on the outer side of the end of the threaded portion of the corresponding foot nail through a nut.

[0010] The invention has a reasonable and compact structure and is easy to use. It can adopt a dual power supply mode of photovoltaic power supply and external power supply. Clean energy is provided for the device through solar panels and batteries, and existing energy is fully utilized to save energy and reduce emissions. The foot nails are heated by electromagnetic induction coils wound around the ends of the threaded parts of each foot nail to melt ice and snow on the outside of the foot nails. The heating efficiency is high and all foot nails can be melted at the same time, which can effectively improve the tower climbing efficiency of line rescue workers. The foot nails are kept dry during the heating process, and the tower can be quickly lowered after inspection and maintenance are completed, which prevents workers from slipping and falling during the stepping process, greatly reducing the risk of lowering the tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Attached Figure 1 It is a schematic diagram of the top view and cross-sectional structure of embodiments 1-5 of the present invention.

[0012] Attached Figure 2 For attachment Figure 1 Schematic diagram of the main structure in use state.

[0013] The codes in the attached drawings are: 1 is the electromagnetic induction coil, 2 is the foot nail, 3 is the end of the threaded part, 4 is the nut, 5 is the angle iron, and 6 is the anti-fall part. DETAILED DESCRIPTION

[0014] The present invention is not limited by the following embodiments, and specific implementation methods can be determined based on the technical solution of the present invention and actual conditions.

[0015] In the present invention, for the convenience of description, the relative position relationship of each component is described according to the attached Figure 1 The positional relationships such as front, back, top, bottom, left, and right are described according to the layout directions of the drawings in the specification.

[0016] The present invention will be further described below in conjunction with embodiments and drawings: Embodiment 1: As attached Figure 1 , 2As shown, the automatic deicing device for the transmission tower foot spikes includes an electromagnetic heating unit and an electric control box. The electromagnetic heating unit includes a plurality of electromagnetic induction coils 1 connected in series, and each electromagnetic induction coil 1 is fixedly mounted on the outer side of the threaded end 3 of the corresponding foot spike 2; the electric control box is electrically connected to the electromagnetic heating unit.

[0017] One end of the foot nail 2 in the prior art is provided with a thread for fixing and installing with the main material of the transmission tower, and the other end is usually provided with an anti-falling part 6, which is bent upward in this embodiment, and the position between the anti-falling part 6 and the angle iron 5 is the stepping part of the foot nail 2.

[0018] The specific installation position of the foot nail 2 on the transmission tower is a well-known technology for those skilled in the art, but the foot nail 2 is usually fixed to the main material of the transmission tower by means of threaded fasteners such as nuts. The main material of the transmission tower is generally angle iron. The installation method of the foot nail 2 on the angle iron 5 is as follows: a plurality of through holes are arranged at intervals in the upper and lower sides of the front side wall and the right side wall, and the through holes on the front side wall and the through holes on the right side wall are staggered in the upper and lower directions (such as Figure 2 As shown), the foot nails 2 are fixedly installed in the through holes by nuts, so that the foot nails 2 on the same main material can be staggered up and down, which is more convenient for line rescue workers to alternately place their feet when climbing up and down.

[0019] In order not to affect the climbing of the rescue workers, each electromagnetic induction coil 1 is sleeved on the outer side of the threaded portion of the foot nail 2 located on the inner side of the angle iron 5. Figure 1 As shown. According to the requirements, in order to prevent the electromagnetic induction coil 1 from falling off, the end 3 of the threaded part of each foot nail 2 can be provided with a retaining groove or a retaining pin hole to install a limit retaining ring or a cotter pin.

[0020] During use, when alternating current passes through each electromagnetic induction coil 1, an alternating magnetic field can be formed inside each electromagnetic induction coil 1. After the magnetic field generated by each electromagnetic induction coil 1 passes through the end 3 of the threaded portion of the corresponding foot nail 2, eddy currents can be generated inside the end 3 of the threaded portion of the corresponding foot nail 2, thereby causing the end 3 of the threaded portion of each foot nail 2 to heat up, and the heat is conducted along the threaded portion of each foot nail 2 to the treading portion and the anti-falling portion 6, thereby melting the ice and snow on the treading portion and the anti-falling portion 6 of each foot nail 2, and further during the heating process, the treading portion and the anti-falling portion 6 of each foot nail 2 are kept dry at all times, thereby avoiding the danger of slipping when the line rescue workers climb up and down.

[0021] The device can be used not only for heating the foot nail 2, but also for heating the cross arm of the iron tower or the rest platform; in addition to being used for power transmission towers, the device can also be used for steel pipe towers or steel pipe poles, power transmission lines and communication towers, etc. It can be used repeatedly after one installation, basically requires no maintenance, and can effectively reduce maintenance costs.

[0022] According to needs, the control box can realize automatic control of the working state of the electromagnetic induction coil 1 based on the single-chip microcomputer in the prior art, or manually control the working state of the electromagnetic induction coil 1 through a switch, etc. The control box can control the heating efficiency and ice and snow removal efficiency of the device for the foot nail 2 by controlling the working current of the electromagnetic induction coil 1; the device can power the electromagnetic heating part through a portable AC power supply in the prior art, and the control box can be powered by a portable DC power supply, or it can be powered by an AC / DC power supply vehicle commonly used by technicians in this field.

[0023] The present invention has a reasonable and compact structure and is easy to use. The electromagnetic induction coil 1 wound around the end 3 of the threaded part of each foot nail 2 heats the foot nail 2 to melt the ice and snow on the outside of the foot nail 2. The heating efficiency is high and all the foot nails 2 can be melted at the same time, which can effectively improve the tower climbing efficiency of line rescue workers. The foot nail 2 is kept dry during the heating process, and the tower can be quickly lowered after the inspection and maintenance is completed, which prevents the workers from slipping and falling during the stepping process, thereby greatly reducing the risk of getting off the tower.

[0024] According to actual needs, the automatic deicing device for the transmission tower foot spike 2 can be further optimized and / or improved: Embodiment 2: The electric control box includes a box body, a PLC control unit, a wireless signal receiving unit, a wireless signal transmitting unit and an online monitoring unit. The PLC control unit, the wireless signal receiving unit and the wireless signal transmitting unit are fixedly installed in the box body. The PLC control unit is electrically connected to the electromagnetic heating part, the wireless signal receiving unit and the wireless signal transmitting unit respectively.

[0025] During use, the line rescue workers can turn on the electromagnetic heating unit to heat the foot nail 2 in advance through the control terminal according to the rescue operation environment of the day, so that after arriving at the scene, the foot nail 2 has been heated and dried, and the line repair work can be started immediately, saving operation time and improving the efficiency of line repair. According to needs, the above control terminal can be an existing publicly known control terminal such as a mobile phone APP or a portable computer or a remote control system.

[0026] The wireless signal receiving unit is used to receive the operation instructions sent remotely by the line rescue workers, such as the setting of heating power parameters and the setting of heating time, etc. After the wireless signal receiving unit uploads the received instructions to the PLC control unit, the PLC control unit can automatically control the operation state of the device according to the corresponding instructions, such as turning on / off the electromagnetic heating part, adjusting the heating current, etc.; the PLC control unit can also feedback the operation state, heating temperature and heating time of the device to the line rescue workers through the wireless signal transmitting unit, so that the rescue workers can understand the operation state of the device. According to the needs, the wireless signal receiving unit and the wireless signal transmitting unit can be through the 4G wireless communication module or 5G wireless communication module known and used in the prior art.

[0027] Embodiment 3: The electric control box further comprises an online monitoring unit capable of monitoring the heating condition of the electric heating part and the surrounding environment.

[0028] The online monitoring unit can monitor the operation of the device itself and the environment around the foot nails 2 and the tower. According to the needs, the online monitoring unit may include a temperature sensor that can monitor the heating condition of each electromagnetic induction coil 1, a camera that can monitor whether there is ice or snow on the foot nails 2, and an electronic thermometer that can monitor the temperature environment around the tower.

[0029] Embodiment 4: It also includes a solar panel, a battery and an inverter. The inverter is electrically connected to the solar panel, the battery and the electromagnetic heating unit respectively. The solar panel is also electrically connected to the electric control box and the battery respectively.

[0030] During use, the solar panel can provide a DC power supply for the device. When the electromagnetic heating part is turned off, the solar panel can charge the battery and store energy through the battery.

[0031] When the electromagnetic heating part is turned on and the solar panel can generate electricity normally, the solar panel can convert direct current into alternating current matching the electromagnetic heating part through the inverter to supply power to the electromagnetic heating part, so that each electromagnetic induction coil 1 can heat the corresponding foot nail 2, melt the ice and snow on the surface of the foot nail 2, and keep the surface of the foot nail 2 dry for the line rescue workers to climb.

[0032] When the electromagnetic heating unit is turned on and the solar panel cannot supply power normally, the battery can be used to power the device. At this time, the inverter can convert the direct current of the battery into alternating current, so that the electromagnetic heating unit can heat normally. According to the needs, the supply voltage and power of the solar panel are adapted to the supply voltage of the control box and the heating power of the electromagnetic heating unit. The battery is a recyclable battery.

[0033] Embodiment 5: As attached Figure 1As shown, each electromagnetic induction coil 1 is fixedly mounted on the outer side of the threaded end 3 of the corresponding foot nail 2 through a nut 4 .

[0034] By such arrangement, the nut 4 can block the electromagnetic induction coil 1 to prevent the electromagnetic induction coil 1 from falling off the foot nail 2 , and also facilitate the disassembly, assembly, replacement and maintenance of the electromagnetic induction coil 1 .

[0035] The above technical features constitute the embodiments of the present invention, which have strong adaptability and implementation effect. Non-essential technical features can be added or reduced according to actual needs to meet the requirements of different situations.

Claims

1. An automatic deicing device for transmission tower spikes, characterized in that It includes an electromagnetic heating part and an electric control box. The electromagnetic heating part includes a plurality of electromagnetic induction coils connected in series. Each electromagnetic induction coil is fixedly installed on the outer side of the threaded end of the corresponding foot nail. The electric control box is electrically connected to the electromagnetic heating part.

2. The automatic deicing device for transmission tower spikes according to claim 1, characterized in that: The electric control box includes a box body, a PLC control unit, a wireless signal receiving unit, a wireless signal transmitting unit and an online monitoring unit. The PLC control unit, the wireless signal receiving unit and the wireless signal transmitting unit are fixedly installed in the box body. The PLC control unit is electrically connected to the electromagnetic heating part, the wireless signal receiving unit and the wireless signal transmitting unit respectively.

3. The automatic deicing device for power transmission tower spikes according to claim 1 or 2, characterized in that: The electric control box also includes an online monitoring unit capable of monitoring the heating condition of the electric heating part and the surrounding environment.

4. The automatic deicing device for power transmission tower spikes according to claim 1 or 2, characterized in that: It also includes a solar panel, a battery and an inverter. The inverter is electrically connected to the solar panel, the battery and the electromagnetic heating part respectively. The solar panel is also electrically connected to the electric control box and the battery respectively.

5. The automatic deicing device for power transmission tower spikes according to claim 3, characterized in that: It also includes a solar panel, a battery and an inverter. The inverter is electrically connected to the solar panel, the battery and the electromagnetic heating part respectively. The solar panel is also electrically connected to the electric control box and the battery respectively.

6. The automatic deicing device for transmission tower spikes according to claim 1, 2 or 5, characterized in that: Each electromagnetic induction coil is fixedly mounted on the outer side of the end of the threaded portion of the corresponding foot nail through a nut.

7. The automatic deicing device for power transmission tower spikes according to claim 3, characterized in that Each electromagnetic induction coil is fixedly mounted on the outer side of the end of the threaded portion of the corresponding foot nail through a nut.

8. The automatic deicing device for transmission tower spikes according to claim 4, characterized in that Each electromagnetic induction coil is fixedly mounted on the outer side of the end of the threaded portion of the corresponding foot nail through a nut.

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