A power cable outer sheath detector for thermal power plants

Abstract

This utility model is a detector for the outer sheath of power cables in thermal power plants, including a base plate and a detection mechanism. The detection mechanism includes a detection body with a control panel mounted on its front. Detection through holes are formed on the left and right side walls of the detection body. Two protective shells are installed inside the detection body. One protective shell houses a high-frequency electromagnetic generator and a transmitting coil, while the other protective shell houses a receiving coil. The control panel is electrically connected to the high-frequency electromagnetic generator and the receiving coil via wires. The transmitting coil is electrically connected to the high-frequency electromagnetic generator via wires. Two support columns are located on the left and right sides of the upper surface of the base plate, and a winding roller is rotatably connected between the two support columns. One of the winding rollers is connected to a drive motor. This utility model, through the cooperation of the high-frequency electromagnetic generator, the transmitting coil, the receiving coil, and the control panel, can accurately detect the internal structure of the outer sheath of power cables in thermal power plants.

Description

Technical Field

[0001] This utility model relates to the technical field of power cable testing, and in particular to a detector for the outer sheath of power cables in thermal power plants. Background Technology

[0002] When laying high-voltage power cables, insulation testing is performed to detect leakage caused by damage to the outer sheath of the cable. This prevents the insulation effect from decreasing due to sheath damage, which would accelerate cable aging. Traditional testing devices, using testing liquid in the testing chamber, can only perform simple tests and cannot detect defects inside the outer sheath of the power cable, such as bubbles, cracks, and impurities, which can easily lead to a reduction in the cable's service life. Utility Model Content

[0003] This utility model aims to address the shortcomings of existing technologies by providing a detector for the outer sheath of power cables in thermal power plants.

[0004] To achieve the above objectives, this utility model adopts the following technical solution:

[0005] A detector for the outer sheath of power cables in thermal power plants includes a base plate, a detection mechanism on the top of the base plate, a detection body, a control panel on the front of the detection body, detection through holes on the left and right side walls of the detection body, and two protective shells installed inside the detection body, located on both sides of the two detection through holes. One protective shell contains a high-frequency electromagnetic generator and a transmitting coil, and the other protective shell contains a receiving coil. The control panel is electrically connected to the high-frequency electromagnetic generator and the receiving coil respectively through wires, and the transmitting coil is electrically connected to the high-frequency electromagnetic generator through wires.

[0006] Two support columns are provided on the left and right sides of the upper surface of the base plate, and a take-up roller is rotatably connected between the two support columns. A support plate is fixedly connected to the back of one of the support columns, and a drive motor connected to the take-up roller is installed on the support plate.

[0007] Support bases are installed at the four corners of the bottom of the base plate. Electric telescopic rods are installed at the bottom of the support bases, and brake wheels are installed at the bottom of the electric telescopic rods.

[0008] Two warning lights are installed on the top of the detection unit, and the warning lights are connected to the control panel via wires.

[0009] A protective box is fixedly connected to the outer surface of the drive motor, and the bottom surface of the protective box is fixedly connected to the upper surface of the support plate.

[0010] The beneficial effects of this utility model are: through the cooperation between the high-frequency electromagnetic generator, the transmitting coil, the receiving coil and the control panel, this utility model can detect the internal structure of the outer sheath of the power cable in thermal power plants, and achieve the purpose of accurate detection. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the bottom support base, electric telescopic rod, and brake wheel of this utility model;

[0013] Figure 3 This is a schematic diagram of the testing organization's structure;

[0014] Figure 4 This is a schematic diagram of the internal structure of the testing facility;

[0015] Figure 5 This is a schematic diagram of the transmitting coil;

[0016] Figure 6 A schematic diagram of the receiving coil and the high-frequency electromagnetic generator;

[0017] In the diagram: 1-Base plate; 2-Detection mechanism; 3-Support column; 4-Take-up roller; 5-Support plate; 6-Drive motor; 7-Support base; 8-Electric telescopic rod; 9-Brake wheel; 10-Reinforcement frame; 11-Protective box;

[0018] 201-Detection body; 202-Control panel; 203-Detection through hole; 204-Protective shell; 205-High frequency electromagnetic generator; 206-Transmitting coil; 207-Receiving coil; 208-Warning light; 209-Fixing ring; 210-Fixing plate;

[0019] The following will describe in detail the embodiments of this utility model with reference to the accompanying drawings. Detailed Implementation

[0020] The principles and features of this utility model are described below with reference to the accompanying drawings. The embodiments described are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0021] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0024] Please see Figures 1-6 A detector for the outer sheath of power cables in thermal power plants includes a base plate 1, with support seats 7 installed at the four corners of the bottom of the base plate 1. An electric telescopic rod 8 is provided at the bottom of the support seat 7, and a brake wheel 9 is installed at the bottom of the electric telescopic rod 8 to facilitate the lifting and moving of the base plate 1.

[0025] A detection mechanism 2 is installed above the base plate 1. The detection mechanism 2 includes a detection body 201. A control panel 202 is installed on the front of the detection body 201. Detection through holes 203 are installed through the left and right side walls of the detection body 201. Two protective shells 204 are installed inside the detection body 201. The two protective shells 204 are located on both sides of the two detection through holes 203. A high-frequency electromagnetic generator 205 and a transmitting coil 206 are installed inside one of the protective shells 204. A receiving coil 207 is installed inside the other protective shell 204. The control panel 205 is electrically connected to the high-frequency electromagnetic generator 205 and the receiving coil 207 respectively through wires. The transmitting coil 206 is electrically connected to the high-frequency electromagnetic generator 205 through wires. Two warning lights 208 are installed on the top of the detection body 201. The warning lights 208 are connected to the control panel 202 through wires.

[0026] The bottom of the warning light 208 is fixedly connected to a fixing ring 209, which is fixedly connected to the upper surface of the detection body 201, providing a strong reinforcement and preventing it from shaking during operation.

[0027] A fixing plate 210 is fixedly connected to the outer surface of the control panel 202, and the fixing plate 210 is fixedly connected to the detection body 201. The fixing plate 210 can reinforce the control panel 202 and effectively prevent it from shifting or becoming unstable during operation.

[0028] Two support columns 3 are provided on the left and right sides of the upper surface of the base plate 1, and a take-up roller 4 is rotatably connected between the two support columns 3. A support plate 5 is fixedly connected to the back of one of the support columns 3, and a drive motor 6 connected to the take-up roller 4 is installed on the support plate 5.

[0029] A protective box 11 is fixedly connected to the outer surface of the drive motor 6, and the bottom surface of the protective box 11 is fixedly connected to the upper surface of the support plate 5. The protective box 11 can protect the drive motor 6, providing strong protection and preventing damage during use.

[0030] A reinforcing frame 10 is fixedly connected to the bottom of the support column 3. The reinforcing frame 10 is fixedly connected to the upper surface of the base plate 1 to enhance stability and prevent it from shifting.

[0031] The working principle of this utility model is as follows: In use, the cable to be tested is first passed through the detection through-hole 203 on the detection body 201 and installed on the winding roller 4. When the cable outer sheath needs to be tested, the drive motor 6 is started via the control panel 202, driving the winding roller 4 to rotate, thereby moving and winding the cable. When the cable passes through the detection body 201, the high-frequency electromagnetic generator 205 generates a high-frequency electromagnetic field. Then, the transmitting coil 206 transmits the high-frequency electromagnetic field to the cable outer sheath, and the receiving coil 207 receives the electromagnetic field from the cable outer sheath. The reflected high-frequency electromagnetic field signal is then detected, analyzed, and recorded by the control panel 202 to achieve accurate detection, enhance the effectiveness of the device, and improve detection accuracy. When damage to the cable outer sheath is detected, the warning light 208 can alert the staff, providing a good warning effect and enhancing the applicability of the device. This effectively avoids the problem that the detection equipment can only perform simple detection on the cable outer sheath and cannot detect defects inside the cable outer sheath, such as bubbles, cracks, and impurities, which would reduce the cable's service life.

[0032] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or direct application to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A detector for the outer sheath of power cables in thermal power plants, comprising a base plate (1), characterized in that, A detection mechanism (2) is provided above the base plate (1). The detection mechanism (2) includes a detection body (201). A control panel (202) is installed on the front of the detection body (201). Detection through holes (203) are provided on the left and right side walls of the detection body (201). Two protective shells (204) are installed inside the detection body (201). The two protective shells (204) are located on both sides of the two detection through holes (203). A high-frequency electromagnetic generator (205) and a transmitting coil (206) are provided inside one of the protective shells (204). A receiving coil (207) is provided inside the other protective shell (204). The control panel (205) is electrically connected to the high-frequency electromagnetic generator (205) and the receiving coil (207) respectively through wires. The transmitting coil (206) is electrically connected to the high-frequency electromagnetic generator (205) through wires. Two support columns (3) are provided on the left and right sides of the upper surface of the base plate (1), and a take-up roller (4) is rotatably connected between the two support columns (3). A support plate (5) is fixedly connected to the back of one of the support columns (3), and a drive motor (6) connected to the take-up roller (4) is installed on the support plate (5).

2. A detector for the outer sheath of power cables in thermal power plants according to claim 1, characterized in that, The bottom of the base plate (1) is equipped with support seats (7) at all four corners. The bottom of the support seats (7) is equipped with an electric telescopic rod (8), and the bottom of the electric telescopic rod (8) is equipped with a brake wheel (9).

3. A detector for the outer sheath of power cables in thermal power plants according to claim 2, characterized in that, Two warning lights (208) are installed on the top of the detection body (201), and the warning lights (208) are connected to the control panel (202) through wires.

4. A detector for the outer sheath of power cables in thermal power plants according to claim 3, characterized in that, The bottom of the warning light (208) is fixedly connected to a fixing ring (209), and the fixing ring (209) is fixedly connected to the upper surface of the detection body (201).

5. A detector for the outer sheath of power cables in thermal power plants according to claim 4, characterized in that, A fixing plate (210) is fixedly connected to the outer surface of the control panel (202), and the fixing plate (210) is fixedly connected to the detection body (201).

6. A detector for the outer sheath of power cables in thermal power plants according to claim 5, characterized in that, The bottom of the support column (3) is fixedly connected to a reinforcing frame (10), and the reinforcing frame (10) is fixedly connected to the upper surface of the base plate (1).

7. A detector for the outer sheath of power cables in thermal power plants according to claim 6, characterized in that, A protective box (11) is fixedly connected to the outer surface of the drive motor (6), and the bottom surface of the protective box (11) is fixedly connected to the upper surface of the support plate (5).

Images