Electric pulse deicing device applied to overhead ground wire and installation method

Abstract

The invention discloses an electric pulse deicing device applied to an overhead ground wire and an installation method. The electric pulse deicing device comprises a shell, a coil, a multiplication fixing assembly, a capacitor and a control unit. A control unit and a capacitor are arranged in the shell; the top of the shell is detachably connected with a fixed plate; a coil is arranged in the fixing plate; a detachable multiplication fixing assembly is arranged at the top of the fixing plate; the multiplication fixing assembly is used for installing and fixing the electric pulse deicing device on an overhead ground wire. The control unit controls the capacitor to discharge to the coil, so that pulse current is generated in the coil, the current generates induced eddy current in the multiplication fixing assembly, and therefore pulse force is generated for deicing. According to the electric pulse deicing device, the electric pulse deicing device is installed on the overhead ground wire, meanwhile, the possible problems in the actual installation process of the electric pulse deicing device are considered, all parts of the electric pulse deicing device are correspondingly adjusted and optimized, the electric pulse acting effect is effectively conducted to the overhead ground wire, and the icing problem of the overhead ground wire is effectively solved.

Description

Technical Field

[0001] The invention belongs to the technical field of deicing of ground wires of power transmission lines, and in particular relates to an electric pulse deicing device applied to overhead ground wires and an installation method thereof. Background Art

[0002] In the process of power transmission, transmission lines inevitably need to cross various areas with complex geographical and climatic conditions, especially high altitude, snow-covered, and heavy ice areas. These environmental factors pose a serious threat to the safe operation of transmission lines. Among them, as an important part of the transmission line, the icing problem of overhead ground wires is particularly prominent. Since the ground wire has no high electric field and large current except for the induced voltage and current, it is easier for ice and snow to accumulate on its surface than the conductor. At the same time, the diameter of the ground wire is usually smaller than that of the conductor, which leads to a faster icing speed of the ground wire under the same icing conditions, and the ice thickness is often greater than that of the conductor. The iced ground wire not only increases the mechanical load of the transmission line, resulting in a decrease in the sag of the ground wire, but may also cause flashover tripping accidents due to collision with the conductor, seriously affecting the safe and stable operation of the power grid.

[0003] The overhead transmission line deicer is a special deicing machine invented to remove ice from transmission cables. It can be used not only to remove ice from transmission lines but also to remove ice from communications and other cables. At present, in order to solve the problem of ground wire icing, deicers are installed on overhead transmission lines. Although traditional methods such as DC deicing can alleviate the icing phenomenon to a certain extent, they face many difficulties in actual operation. On the one hand, the ground wire needs to be insulated before DC deicing can be implemented, which increases the complexity and cost of the operation; on the other hand, due to the small diameter of the ground wire, the current density required for DC deicing is large, and the requirements for equipment and energy are also increased accordingly. In addition, there are still problems such as low efficiency and high energy consumption in actual applications.

[0004] As an emerging non-contact deicing method, electric pulse deicing technology generates an electromagnetic force between the coil and the target object (such as the ground wire) by generating an impulse current, which makes the ice fall off the wire quickly. It has the advantages of high deicing efficiency, low energy consumption, and simple operation, and has a wide range of application prospects. How to apply electric pulse deicing technology to overhead ground wires and design a device that can effectively de-ice overhead ground wires is a problem that needs to be solved urgently. Summary of the invention

[0005] The purpose of the present invention is to provide an electric pulse deicing device and installation method for overhead ground wires to address the above shortcomings, so that the electric pulse deicing device can be installed on the overhead ground wires. At the same time, the problems that may be faced during its actual installation are taken into consideration, and corresponding adjustments and optimizations are made to various parts, so that the electric pulse deicing device can effectively de-ice. To achieve the above purpose, the present invention provides the following technical solutions:

[0006] An electric pulse deicing device applied to an overhead ground wire comprises a shell, a coil, a multiplier fixing assembly, a capacitor and a control unit; the shell is provided with a control unit and a capacitor; a fixing plate is detachably connected to the top of the shell; a coil is provided in the fixing plate; a detachable multiplier fixing assembly is provided on the top of the fixing plate; the multiplier fixing assembly is used to install and fix the electric pulse deicing device on the overhead ground wire; the control unit controls the capacitor to discharge to the coil, so that a pulse current is generated in the coil, and the current generates an induced eddy current in the multiplier fixing assembly, thereby generating a pulse force for deicing.

[0007] Furthermore, the control unit includes a thyristor and a single-chip microcomputer; the thyristor and the single-chip microcomputer are arranged in a housing; the single-chip microcomputer controls the switching state of the thyristor so that the capacitor discharges to the coil through the thyristor.

[0008] Furthermore, the multiplier fixing assembly includes a multiplier and a top cover; a detachable multiplier is provided on the top of the fixing plate, and the multiplier is used to generate corresponding induced eddy currents; a detachable top cover is provided on the top of the multiplier, and the multiplier and the top cover are used together to fix the electric pulse deicing device on the overhead ground wire.

[0009] Furthermore, the fixing plate, the multiplier and the housing are provided with corresponding first screw holes near the edges thereof, and the first bolts are passed through the coil slots, the multiplier and the first screw holes on the housing to fix the three together.

[0010] Furthermore, a gasket groove is provided at the first screw hole on the multiplier; a silicone gasket is provided in the gasket groove, and when the first bolt passes through the first screw hole on the multiplier, the silicone gasket is fixed in the gasket groove.

[0011] Furthermore, a coil slot is provided on the fixing plate; a coil is fixed in the coil slot.

[0012] Furthermore, insulating paper is provided between the fixing plate and the multiplier; the insulating paper covers the top of the coil.

[0013] A method for installing an electric pulse deicing device applied to an overhead ground wire is used to install the electric pulse deicing device applied to the overhead ground wire on the overhead ground wire, and the electric pulse deicing device is installed and fixed on the overhead ground wire by a multiplier fixing assembly, the multiplier fixing assembly includes a multiplier and a top cover, and the multiplier and the top cover work together to fix the electric pulse deicing device on the overhead ground wire, specifically comprising the following steps:

[0014] S1: A first semicircular groove is provided on the upper surface of the multiplier, the radius of the first semicircular groove is the same as the radius of the overhead ground wire, and corresponding second screw holes are respectively provided near the edges of the fixing plate, the multiplier and the housing;

[0015] S2: a second semicircular groove corresponding to the first semicircular groove is formed at the bottom of the top cover, and a third screw hole corresponding to the second screw hole is formed near the edge of the top cover;

[0016] S3 uses the second bolt to pass through the third screw hole and the second screw hole to fix the top cover on the multiplier, and makes the overhead ground wire located in the circular accommodation cavity formed by the first semicircular groove and the second semicircular groove.

[0017] Further, in S2, the second semicircular groove has the same size as the first semicircular groove.

[0018] Furthermore, in S3, two silicone gaskets are installed under the second bolt head.

[0019] The beneficial effects of the present invention are:

[0020] The present invention discloses an electric pulse deicing device and installation method for overhead ground wires. Considering the problems that may be faced when applying electric pulse deicing technology to overhead ground wires to de-ice the ground wires, various parts of the electric pulse deicing device are adjusted and optimized accordingly. By arranging a multiplier above the coil, when the coil generates a pulse current, an induced eddy current is generated on the multiplier, thereby generating a mutually repulsive pulse force, and then the force is transmitted to the ground wire through the multiplier, so that the ground wire can be effectively de-iced. The coil is fixed by using a fixing plate to ensure the stability of the deicing device when de-icing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the electric pulse deicing device installed on the overhead ground wire;

[0022] Figure 2 is a schematic diagram of the fixed plate;

[0023] Figure 3 It is a schematic diagram of the coil mounted on a fixed plate;

[0024] Figure 4 is a schematic diagram of a multiplier;

[0025] Figure 5 is a schematic diagram of the top cover;

[0026] In the accompanying drawings: 1-housing, 2-fixing plate, 3-coil slot, 4-coil, 5-multiplier, 6-top cover, 7-first semicircular slot, 8-second semicircular slot, 9-first screw hole, 10-second screw hole, 11-third screw hole, 12-gasket slot. DETAILED DESCRIPTION

[0027] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0028] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0029] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0030] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", etc. Such spatial relative terms include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure is turned over, the element described as "below other elements or features" or "below other elements or features" will then be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." can include both upper and lower orientations. The device can be oriented otherwise (rotated 90 degrees or in other directions) and the spatial relative descriptors used in the text are interpreted accordingly.

[0031] In addition, in order to better illustrate the present disclosure, numerous specific details are given in the following specific embodiments. It should be understood by those skilled in the art that the present disclosure can also be implemented without certain specific details. In some examples, methods, means, components and circuits well known to those skilled in the art are not described in detail in order to highlight the subject matter of the present disclosure.

[0032] The electric pulse deicing device is a system that uses an induction coil to produce a mechanical actuation effect. It is usually installed inside the wing surface near the leading edge of the aircraft wing. It removes ice accumulated on the aircraft surface by generating fast, high-intensity mechanical vibrations. The electric pulse deicing device includes components such as a housing, a pulse coil, a capacitor, and a thyristor. The structure of the electric pulse deicing device is well known to those skilled in the art, so the specific structure of the electric pulse deicing device will not be described in detail here.

[0033] Embodiment 1

[0034] See attached Figures 1 to 5 . The present invention discloses an electric pulse deicing device applied to overhead ground wires, comprising a housing 1, a coil 4, a multiplier fixing assembly, a capacitor and a control unit, wherein the control unit is a thyristor and a single-chip microcomputer, the single-chip microcomputer controls the switching state of the thyristor, the capacitor, the thyristor and the single-chip microcomputer are arranged in the housing 1, and the housing 1 plays a certain protective role on these electrical components. The top of the housing 1 is detachably connected to a fixing plate 2, a coil slot 3 is provided on the fixing plate 2, a coil 4 is fixed in the coil slot 3, and a detachable multiplier fixing assembly is provided on the top of the fixing plate 2. Among them, the multiplication fixing assembly includes a multiplier 5 and a top cover 6. The multiplier 5 is detachably arranged on the top of the fixing plate 2, and the top cover 6 is detachably arranged on the top of the multiplier 5. When the single-chip microcomputer controls the thyristor to open, the capacitor is discharged to the coil 4 through the thyristor, and a pulse current is generated in the coil 4. This current generates an induced eddy current on the multiplier 5. The magnetic field generated by the pulse current and the magnetic field generated by the induced eddy current are opposite in direction, and then repel each other, generating a pulse force. The pulse force acts on the multiplier 5, and the multiplier 5 then transmits this force to the ground wire, and the ground wire can be effectively de-iced by this pulse force. The multiplier 5 and the top cover 6 work together to fix the electric pulse de-icing device on the overhead ground wire. The fixing plate 2 is set in this device to fix the coil 4 because the pulse force will generate a reaction force on the coil 4, so the fixing plate 2 is set to fix the coil 4 to ensure the stability of the de-icing device during de-icing.

[0035] Specifically, the fixing plate 2 is made of epoxy resin and is circular in shape. A circular coil slot 3 is provided on the fixing plate 2. Figure 2 As shown, the diameter of the coil slot 3 is slightly larger than the diameter of the coil 4, and the coil 4 is fixed in the coil slot 3 using epoxy resin glue. Figure 3 As shown, the coil 4 and the epoxy resin plate form a whole, which is convenient for installation with other components. A plurality of first screw holes 9 are evenly provided along the circumferential direction at the edges of the fixing plate 2 for connection with other components.

[0036] Specifically, when the electric pulse deicing device is deicing, current will be passed through the coil 4, and the metal multiplier 5 is mainly used to generate induced eddy currents, thereby generating electric pulse force. In order to generate a larger pulse force, the gap between the coil 4 and the multiplier 5 needs to be set relatively small. Since the material of the multiplier 5 is aluminum, the coil 4 and the multiplier 5 need to be electrically insulated, and insulating paper can be set between the coil 4 and the multiplier 5 to separate the two. Among them, the diameter of the insulating paper is slightly larger than the diameter of the coil 4, and the insulating paper is fixed to the fixed plate 2 and covered on the notch of the coil slot 3 with epoxy resin glue.

[0037] Specifically, the top of the housing 1 is set to be annular, and the first screw holes 9 are evenly opened in the circumferential direction on the ring at the top of the housing 1 and on the edges of the multiplier 5, and the first screw holes 9 on the fixing plate 2, the multiplier 5 and the housing 1 correspond to each other. The size of the first screw hole 9 corresponds to the size of the M6 ​​bolt. The multiplier 5, the fixing plate 2 and the housing 1 are placed in order from top to bottom, and then the first bolt is used to pass through the fixing plate 2, the multiplier 5 and the first screw hole 9 on the housing 1 to fix the three together, so that the three become a whole. The first bolt is an M6 specification bolt. After the fixing plate 2, the multiplier 5 and the housing 1 are connected and fixed by the first bolt to form a whole, due to the limiting effect of the first bolt, a large part of the electric pulse force is converted into internal force, which is difficult to act on the overhead ground wire. In order to better conduct the pulse force, it is necessary to add a displacement stroke to the multiplier 5. Two M6*12*2 silicone gaskets are installed under each first bolt head. Under the action of pulse force, the gaskets can be deformed to provide displacement stroke for the multiplier 5. A gasket groove 12 with a depth of 5 mm and a diameter of 15 mm can be opened at the first screw hole 9 on the multiplier 5. Figure 4 As shown, the silicone gasket is placed in the gasket groove 12. The deicing device for electric pulse applied to overhead ground wires of the present invention takes into account the problems that may be faced when installing the electric pulse deicing device on the overhead ground wire, and makes corresponding adjustments and improvements to the overall structure and internal components of the electric pulse deicing device. A multiplier 5 is arranged above the coil 4. When the coil 4 generates a pulse current, an induced eddy current is generated on the multiplier 5, thereby generating a mutually repulsive pulse force. The pulse force acts on the multiplier 5, and the multiplier 5 then transmits this force to the ground wire, and the ground wire can be deiced by this pulse force. The coil 4 is fixed by a fixing plate 2 to ensure the stability of the deicing device during deicing.

[0038] Embodiment 2

[0039] See attached Figures 1 to 5. The present invention discloses an installation method of an electric pulse deicing device applied to an overhead ground wire, which is used to install the electric pulse deicing device applied to an overhead ground wire in Example 1 on the overhead ground wire to de-ice the overhead ground wire. The electric pulse deicing device of the present invention mainly uses a multiplier fixing assembly to install and fix the entire device on the overhead ground wire. The multiplier fixing assembly includes a multiplier 5 and a top cover 6. The multiplier 5 and the top cover 6 work together to install and fix the entire device on the overhead ground wire. The specific steps include:

[0040] First, the multiplier 5 and the top cover 6 can be both shaped like an oblate cylinder, and a first semicircular groove 7 and a second semicircular groove 8 are respectively provided at corresponding positions on the multiplier 5 and the top cover 6, such as Figure 4 and Figure 5 As shown, the first semicircular groove 7 and the second semicircular groove 8 form a receiving cavity with two ends passing through, which is used to place the overhead ground wire. The radius of the first semicircular groove 7 and the second semicircular groove 8 is the same as the radius of the overhead ground wire. When the electric pulse deicing device is installed on the overhead ground wire, the upper and lower parts of the overhead ground wire can be perfectly fitted with the top cover 6 and the multiplier 5 respectively, so that the electric pulse force can be better transmitted to the overhead ground wire. At the same time, the electric pulse deicing device does not deviate in the horizontal direction after installation; second screw holes 10 are evenly opened at the corresponding positions of the first screw holes 9 in the circumferential direction at the edges of the fixing plate 2, the multiplier 5 and the shell 1. , and third screw holes 11 are evenly opened at corresponding positions along the circumferential direction on the edges of the top cover 6. The sizes of the second screw holes 10 and the third screw holes 11 correspond to the size of M6 bolts. During installation, the second bolt is used to pass through the third screw hole 11 of the top cover 6 and the second screw hole 10 on the multiplier 5, the fixing plate 2 and the outer shell 1 in sequence to clamp the overhead ground wire and fix it in the accommodating cavity formed by the first semicircular groove 7 and the second semicircular groove 8, so that the entire electric pulse deicing device is fixed on the overhead ground wire. The overhead ground wire is located in the accommodating cavity formed by the first semicircular groove 7 and the second semicircular groove 8. The second bolt is an M6 specification bolt.

[0041] Specifically, a gasket groove 12 with a depth of 5 mm and a diameter of 15 mm can also be opened in the second screw hole 10 of the top cover 6. Two M6*12*2 silicone gaskets can be placed in the gasket groove 12, so that the overhead ground wire can swing slightly up and down during electric pulse deicing, which is conducive to the propagation of the electric pulse force along the overhead ground wire.

[0042] The present invention discloses an installation method of an electric pulse deicing device applied to an overhead ground wire. The entire electric pulse deicing device is installed on the overhead ground wire through a top cover and a multiplier, so that the effect of the electric pulse is effectively transmitted to the overhead ground wire, effectively solving the problem of icing on the overhead ground wire, realizing the deicing of the overhead ground wire, and reducing the harm caused by icing.

[0043] All technical features in this embodiment can be freely combined according to actual needs. The above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be covered by the scope of the claims of the present invention. The technology, shape, and structural parts not described in detail in the present invention are all well-known technologies.

[0044] The above embodiments are preferred implementation schemes of the present invention. In addition, other implementation schemes are also included. Any obvious replacement without departing from the concept of the present technical scheme is within the protection scope of the present invention.

Claims

1. An electric pulse deicing device for overhead ground wires, characterized in that: It includes a shell, a coil, a multiplier fixing component, a capacitor and a control unit; the shell is provided with a control unit and a capacitor; the top of the shell is detachably connected to a fixing plate; the fixing plate is provided with a coil; the top of the fixing plate is provided with a detachable multiplier fixing component; the multiplier fixing component is used to install and fix the electric pulse deicing device on the overhead ground wire; the control unit controls the capacitor to discharge to the coil, so that a pulse current is generated in the coil, and the current generates induced eddy current in the multiplier fixing component, thereby generating a pulse force for deicing.

2. The electric pulse deicing device for overhead ground wire according to claim 1 is characterized in that: The control unit comprises a thyristor and a single-chip microcomputer; the thyristor and the single-chip microcomputer are arranged in a housing; the single-chip microcomputer controls the switching state of the thyristor to discharge the capacitor to the coil through the thyristor.

3. The electric pulse deicing device for overhead ground wire according to claim 1 is characterized in that: The multiplier fixing assembly includes a multiplier and a top cover; a detachable multiplier is provided on the top of the fixing plate, and the multiplier is used to generate corresponding induced eddy currents; a detachable top cover is provided on the top of the multiplier, and the multiplier and the top cover are used together to fix the electric pulse deicing device on the overhead ground wire.

4. The electric pulse deicing device for overhead ground wire according to claim 3 is characterized in that: The fixing plate, the multiplier and the shell are respectively provided with corresponding first screw holes near the edges thereof, and the first bolts are passed through the coil slots, the multiplier and the first screw holes on the shell to fix the three together.

5. The electric pulse deicing device for overhead ground wire according to claim 4, characterized in that: A gasket groove is provided at the first screw hole on the multiplier; a silicone gasket is provided in the gasket groove, and when the first bolt passes through the first screw hole on the multiplier, the silicone gasket is fixed in the gasket groove.

6. The electric pulse deicing device for overhead ground wire according to claim 1, characterized in that: The fixing plate is provided with a coil slot; a coil is fixed in the coil slot.

7. The electric pulse deicing device for overhead ground wire according to claim 1, characterized in that: Insulating paper is provided between the fixing plate and the multiplier; the insulating paper covers the top of the coil.

8. A method for installing an electric pulse deicing device for an overhead ground wire, characterized in that: The electric pulse deicing device for overhead ground wires according to claims 1 to 7 is installed on the overhead ground wires, and the electric pulse deicing device is installed and fixed on the overhead ground wires by a multiplier fixing assembly, the multiplier fixing assembly includes a multiplier and a top cover, and the multiplier and the top cover work together to fix the electric pulse deicing device on the overhead ground wire, specifically comprising the following steps: S1: A first semicircular groove is provided on the upper surface of the multiplier, the radius of the first semicircular groove is the same as the radius of the overhead ground wire, and corresponding second screw holes are respectively provided near the edges of the fixing plate, the multiplier and the housing; S2: a second semicircular groove corresponding to the first semicircular groove is formed at the bottom of the top cover, and a third screw hole corresponding to the second screw hole is formed near the edge of the top cover; S3 uses the second bolt to pass through the third screw hole and the second screw hole to fix the top cover on the multiplier, and makes the overhead ground wire located in the circular accommodation cavity formed by the first semicircular groove and the second semicircular groove.

9. The method for installing an electric pulse deicing device for overhead ground wires according to claim 8, characterized in that: In S2, the second semicircular groove has the same size as the first semicircular groove.

10. The method for installing an electric pulse deicing device for overhead ground wires according to claim 8, characterized in that: In S3, two silicone gaskets are installed under the second bolt head.

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