Simulated wire heating device

Abstract

The utility model discloses a simulation wire heating device, which relates to the technical field of electric power equipment maintenance and comprises L-shaped fixing supports clamped on a power transmission tower and further comprises wire icing monitoring devices symmetrically arranged below the two L-shaped fixing supports. Comprising tension sensors, a clamping mechanism, a wire simulation assembly and an anti-freezing protection system, and the tension sensors are vertically installed at the lower ends of two L-shaped fixing supports through flange structures. The beneficial effects of the utility model are that the simulation lead with the same diameter as the real lead is used as a simulation object to be tested, ice and snow with the same weight as the lead with the same length can be attached to the simulation lead in the same environment, and the two L-shaped fixing supports are matched with the clamping device to clamp the two ends of the simulation lead. The stability of the simulation wire can be ensured, signal oscillation of the tension sensor caused by wind swing of the real wire is avoided, and the accuracy of icing tension data is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of power equipment maintenance technology, and in particular to a simulated conductor heating device. Background Technology

[0002] In cold regions, ice accumulation on power transmission lines can lead to safety hazards such as excessive tower loads and conductor galloping.

[0003] Existing technology, such as the Chinese patent announcement number CN218040713U, discloses a simulated wire heating device, including a fixed bracket, a crossbeam, and a distribution cabinet. The fixed bracket is fixedly connected to the middle of the crossbeam, with a connecting rod fixedly connected to its front end. A tension sensor is located at the lower end of the connecting rod, and a wire locking device is located at the lower end of the tension sensor. The interior of the wire locking device is fixedly connected to the outer surface of the wire, and heating rods are located at both ends of the wire locking device. The distribution cabinet has an ARM controller on its rear wall and a battery on its bottom. The input of the ARM controller is electrically connected to the output of the battery, and the output of the ARM controller is electrically connected to the input of the heating rods. The output of the tension sensor is electrically connected to the input of the ARM controller. This simulated wire heating device can monitor the de-icing progress online, allowing personnel to understand and control the de-icing progress in a timely manner, facilitating management.

[0004] While this device can indirectly measure icing amount using a tension sensor, it has a significant drawback: using a real conductor as the measured object makes it susceptible to wind-induced conductor swaying, causing the tension sensor to generate oscillation signals and resulting in inaccurate measurement data. To address this drawback, we propose a simulated conductor heating device. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a simulated wire heating device.

[0006] To address the problems existing in the prior art, this utility model adopts the following technical solution: a simulated conductor heating device, comprising an L-shaped fixing bracket clamped on a transmission tower, and further comprising: a conductor icing monitoring device, wherein the conductor icing monitoring device is symmetrically arranged below the two L-shaped fixing brackets, including:

[0007] The tension sensor is vertically mounted on the lower end of two L-shaped fixed brackets via a flange structure.

[0008] The clamping mechanism includes a first semi-circular clamping part coaxially connected to the lower part of the tension sensor, and a second semi-circular clamping part forming a tubular clamping structure with the first semi-circular clamping part by a high-strength bolt group.

[0009] The conductor simulation assembly consists of a simulated conductor clamped along the axial direction of the clamping mechanism, the simulated conductor having the same diameter as the external transmission tower conductor;

[0010] The antifreeze protection system includes a stainless steel protective shell and a layered insulation structure disposed inside the stainless steel protective shell. The layered insulation structure includes, from the outside to the inside, an intermediate insulation layer, a self-regulating heat tracing cable and an inner heat-conducting interface. The intermediate insulation layer and the inner heat-conducting interface are connected to form a closed cavity by a high-temperature resistant adhesive.

[0011] Preferably, the intermediate insulation layer is made of high-temperature resistant rock wool to insulate against extreme external temperatures.

[0012] Preferably, the self-regulating heating cable automatically adjusts its power via an external temperature controller.

[0013] Preferably, both the tension sensor and the self-regulating heating tape are connected to an external ARM controller via wires.

[0014] Preferably, the joint between the inner thermal interface and the tension sensor is sealed with rubber sponge.

[0015] Preferably, the inner thermal interface is made of a copper thermally conductive sheet, which is uniformly attached to the surface of the tension sensor.

[0016] Preferably, the inner surfaces of both the first semi-circular clamping part and the second semi-circular clamping part are provided with a flame-retardant layer, and the flame-retardant layer is made of flame-retardant silicone sheet.

[0017] Preferably, the upper surfaces of the two L-shaped fixing brackets are fixed with support plates by bolts.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. A simulated conductor with the same diameter as the real conductor is used as the simulated test object. Under the same environment, the simulated conductor will be covered with ice and snow of the same weight as the conductor of the same length. The two ends of the simulated conductor can be reinforced by two L-shaped fixed brackets and clamping devices, which can ensure the stability of the simulated conductor and avoid the oscillation of the tension sensor signal caused by the wind swing of the real conductor, thus significantly improving the accuracy of the ice accretion tension data.

[0020] 2. The anti-freeze protection system is linked with the external ARM controller through the self-regulating heat tracing tape to adjust the internal temperature in real time. Combined with the copper inner thermal interface and the high-temperature resistant rock wool insulation layer, it ensures stable operation of the sensor under extreme low temperatures. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the present invention. The illustrative embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an undue limitation. In the drawings:

[0022] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0023] Figure 2 This is a three-dimensional schematic diagram of the present invention after the simulated wires have been removed;

[0024] Figure 3 This is a front sectional view of the antifreeze protection system of this utility model;

[0025] Figure 4 This is a three-dimensional schematic diagram of the clamping mechanism of this utility model.

[0026] The numbers in the diagram are: 10 L-shaped fixing bracket, 20 tension sensor, 30 first semi-circular clamping part, 31 second semi-circular clamping part, 40 simulated wire, 50 stainless steel protective shell, 51 intermediate insulation layer, 52 self-regulating heat tracing tape, 53 inner heat-conducting interface, 60 rubber sponge, 70 flame retardant layer, and 80 support plate. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0028] Please see Figure 1-4 This utility model provides a technical solution: a simulated conductor heating device, including an L-shaped fixed bracket 10 clamped on a transmission tower, and also including a conductor icing monitoring device, which is symmetrically arranged below the two L-shaped fixed brackets 10, and includes a tension sensor 20, a clamping mechanism, a conductor simulation component, and an antifreeze protection system.

[0029] Support plates 80 are bolted to the upper surfaces of the two L-shaped fixed brackets 10. Tension sensors 20 are vertically mounted on the lower ends of the two L-shaped fixed brackets 10 via flange structures. The tension sensors 20 are vertically mounted on the lower ends of the brackets and fixed by flanges. The two L-shaped fixed brackets 10 are symmetrically clamped at the predetermined position of the transmission tower. The upper surfaces of the two L-shaped fixed brackets 10 are reinforced by bolts to ensure structural stability and enhance wind load resistance.

[0030] The clamping mechanism includes a first semi-circular clamping part 30 coaxially connected below the tension sensor 20, and a second semi-circular clamping part 31 forming a tubular clamping structure with the first semi-circular clamping part 30 by a high-strength bolt group. The inner surfaces of the first semi-circular clamping part 30 and the second semi-circular clamping part 31 are both provided with a flame-retardant layer 70, and the flame-retardant layer 70 is made of flame-retardant silicone sheet.

[0031] The conductor simulation assembly consists of a simulated conductor 40 clamped in the axial direction of the clamping mechanism. The simulated conductor 40 has the same diameter and material as the external transmission tower conductor. The first semi-circular clamping part 30 is connected to the sensor and coaxially clamps the simulated conductor 40 with the second semi-circular clamping part 31. It is fastened with high-strength bolts to form a tubular structure to ensure that the flame-retardant layer 70 adheres to the surface of the conductor.

[0032] A simulated conductor 40 with the same diameter as the real conductor is used as the simulated test object. Under the same environment, the simulated conductor 40 will be covered with ice and snow of the same weight as the conductor of the same length. The two ends of the simulated conductor 40 can be reinforced by two L-shaped fixing brackets 10 and clamping devices, which can ensure the stability of the simulated conductor 40 and avoid the signal oscillation of the tension sensor 20 caused by the wind swing of the real conductor, thus significantly improving the accuracy of the ice accretion tension data.

[0033] The antifreeze protection system includes a stainless steel protective shell 50 and a layered insulation structure disposed inside the stainless steel protective shell 50. The layered insulation structure includes, from the outside to the inside, an intermediate insulation layer 51, a self-regulating heat tracing cable 52, and an inner heat-conducting interface 53. The intermediate insulation layer 51 and the inner heat-conducting interface 53 form a closed cavity with a high-temperature resistant adhesive. The intermediate insulation layer 51 is made of high-temperature resistant rock wool to insulate against extreme external temperatures. The joint between the inner heat-conducting interface 53 and the tension sensor 20 is sealed with rubber sponge 60 to prevent moisture from entering. The inner heat-conducting interface 53 is made of copper heat-conducting sheet, which is uniformly attached to the surface of the tension sensor 20.

[0034] The self-regulating heating cable 52 automatically adjusts its power through an external temperature controller. Both the tension sensor 20 and the self-regulating heating cable 52 are connected to an external ARM controller via wires. By connecting the tension sensor 20 and the self-regulating heating cable 52 to the external ARM controller and configuring the external temperature controller, adaptive power adjustment can be achieved. Both the tension sensor 20 and the self-regulating heating cable 52 are powered by an external battery. The anti-freeze protection system is linked with the external ARM controller through the self-regulating heating cable 52 to adjust the internal temperature in real time. Combined with the copper inner thermal interface 53 and the high-temperature resistant rock wool intermediate insulation layer 51, the stable operation of the tension sensor 20 is ensured under extreme low temperatures.

[0035] Both the simulated conductor 40 and the transmission tower conductor are connected to the external conductor de-icing system (the external de-icing system is existing technology and will not be described in detail). The tension sensor 20 monitors the changes in the ice-covered tension of the simulated conductor 40 in real time. After the monitoring is completed, the external ARM controller drives the external conductor de-icing system to heat the simulated conductor 40 and the external transmission tower conductor to complete the de-icing, which is convenient for secondary measurement.

[0036] Specifically, the working principle and operation method of this utility model are as follows:

[0037] Simulated conductor 40 replaces real conductor: The diameter of simulated conductor 40 is the same as that of real conductor. Under the same environmental conditions, its surface ice weight and shape are equivalent to those of real conductor. Both ends are rigidly fixed by L-shaped fixed bracket 10 and clamping mechanism to avoid wind swing interference and ensure that the tension sensor 20 only detects the vertical tension change caused by the ice weight.

[0038] Flame retardant and clamping protection: The inner surface of the clamping mechanism is provided with a glass wool flame retardant layer 70 to prevent the simulated wire 40 from catching fire due to high temperature, and a tubular stable structure is formed by high-strength bolt group to ensure uniform axial force on the simulated wire 40.

[0039] Data acquisition by tension sensor 20: After the simulated wire 40 is covered with ice, its gravity is transmitted to the vertically installed tension sensor 20 through the clamping mechanism. The tension sensor 20 converts the ice-covered tension signal into an electrical signal and transmits it to the external ARM controller (the external ARM controller can analyze the amount of ice, and the data algorithm of the external ARM controller is existing technology, so it will not be described in detail).

[0040] Thermal insulation and heat conduction work together: In the anti-freeze protection system, the copper inner thermal interface 53 evenly distributes the surface heat of the tension sensor 20, the self-limiting heat tracing cable 52 adjusts its power according to the instructions of the external temperature controller, and combined with the high-temperature resistant rock wool middle insulation layer 51 to isolate the external low temperature, ensuring that the sensor can still work accurately in extreme low temperature environments.

[0041] ARM controller decision: When the tension sensor 20 detects that the icing load has reached a preset threshold, the ARM controller triggers the following action:

[0042] The external de-icing system is activated to de-ice the simulated conductor 40 and the transmission tower conductors. This device can be equipped with an external camera to observe the progress of conductor de-icing.

[0043] Cyclic working mode: After the simulated conductor 40 and the conductor have finished melting ice, the device is reset and re-monitors the icing status to achieve multiple continuous measurements.

[0044] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art based on the technical solution and concept of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A simulated conductor heating device, comprising an L-shaped fixing bracket (10) clamped on a transmission tower, characterized in that, Also includes: A conductor icing monitoring device, symmetrically arranged below two L-shaped fixed supports (10), comprising: A tension sensor (20) is vertically mounted on the lower ends of two L-shaped fixed brackets (10) via a flange structure; The clamping mechanism includes a first semi-circular clamping part (30) coaxially connected below the tension sensor (20), and a second semi-circular clamping part (31) that forms a tubular clamping structure with the first semi-circular clamping part (30) by a high-strength bolt group; The conductor simulation assembly consists of a simulated conductor (40) clamped in the axial direction of the clamping mechanism, the simulated conductor (40) having the same diameter as the external transmission tower conductor; The antifreeze protection system includes a stainless steel protective shell (50) and a layered insulation structure disposed inside the stainless steel protective shell (50). The layered insulation structure includes, from the outside to the inside, an intermediate insulation layer (51), a self-regulating heat tracing cable (52), and an inner heat-conducting interface (53). The intermediate insulation layer (51) and the inner heat-conducting interface (53) form a closed cavity through a high-temperature resistant adhesive.

2. The simulated wire heating device according to claim 1, characterized in that: The intermediate insulation layer (51) is made of high-temperature resistant rock wool and is used to insulate against extreme external temperatures.

3. The simulated wire heating device according to claim 1, characterized in that: The self-regulating heating cable (52) automatically adjusts its power via an external temperature controller.

4. The simulated wire heating device according to claim 1, characterized in that: The tension sensor (20) and the self-regulating heating tape (52) are both connected to the external ARM controller via wires.

5. The simulated wire heating device according to claim 1, characterized in that: The joint between the inner thermal interface (53) and the tension sensor (20) is sealed with rubber sponge (60).

6. The simulated wire heating device according to claim 1, characterized in that: The inner thermal interface (53) is made of copper thermal sheet, which is uniformly attached to the surface of the tension sensor (20).

7. The simulated wire heating device according to claim 1, characterized in that: The inner surfaces of the first semi-circular clamping part (30) and the second semi-circular clamping part (31) are provided with a flame-retardant layer (70), and the flame-retardant layer (70) is made of flame-retardant silicone sheet.

8. The simulated wire heating device according to claim 1, characterized in that: Support plates (80) are fixedly mounted on the upper surfaces of the two L-shaped fixed brackets (10) by bolts.

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