Insulator contamination degree on-line monitoring device

Abstract

The application discloses an insulator contamination degree on-line monitoring device, which comprises a detection box, an image acquisition unit is arranged in the detection box, a through hole is arranged on one side of the detection box, the image acquisition unit comprises an electric telescopic lens, and the electric telescopic lens can drive the image acquisition unit to extend out of the detection box from the through hole; a sliding door is slidably arranged at a position corresponding to the through hole of the detection box, a driving mechanism is arranged between the sliding door and the detection box, and the driving mechanism is used for driving the sliding door to close the through hole or expose the through hole; a clamping mechanism is arranged at the bottom of the detection box, and the clamping mechanism is used for fixedly connecting with a tower. The device is installed on the tower, and can automatically and periodically detect the contamination degree of the insulator.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of overhead transmission line online monitoring, in particular to an insulator contamination degree online monitoring device. BACKGROUND

[0002] The insulator is a special insulating control, which can play an important role in the overhead transmission line, and is widely used in high-voltage transmission lines. The insulator is exposed to the external environment for a long time, and the pollutants in the air will adhere and accumulate on its surface, thereby affecting the electrical strength, mechanical strength and insulation performance of the insulator surface, and the pollution flashover accident is prone to occur. In order to enable the high-voltage line to operate safely and stably for a long time, the contamination degree of the insulator needs to be detected regularly, and the seriously aged insulator needs to be withdrawn from operation in time.

[0003] In the prior art, the insulator contamination degree detection is mainly based on manual detection, which has the disadvantages of low efficiency, high work intensity and high risk factors. On the other hand, the manual detection can only collect the contamination condition on the detection day, and the accuracy and reliability of the detection need to be further improved. SUMMARY

[0004] Therefore, the present application provides an insulator contamination degree online monitoring device, which is installed on the iron tower and can automatically and regularly detect the contamination degree of the insulator.

[0005] To achieve the above-mentioned purpose, the technical scheme of the present application is as follows:

[0006] An insulator contamination degree online monitoring device, the key of which is that it comprises a detection box, an image acquisition unit is installed inside the detection box, a through hole is arranged on one side of the detection box, the image acquisition unit comprises an electric telescopic lens, and the electric telescopic lens can drive the image acquisition unit to extend outside the detection box from the through hole; a sliding door is slidingly installed at a position corresponding to the through hole of the detection box, a driving mechanism is arranged between the sliding door and the detection box, and the driving mechanism is used to drive the sliding door to close the through hole or expose the through hole; a clamping mechanism is arranged at the bottom of the detection box, and the clamping mechanism is used to be fixedly connected with the iron tower.

[0007] By adopting the above structure, the monitoring device is installed on the iron tower for a long time, the through hole of the detection box faces the insulator, and the electric telescopic lens extends outward regularly, so that the insulator can be monitored online.

[0008] Preferably, the driving mechanism comprises a motor installed inside the detection box, a gear installed on the output shaft of the motor, and a rack installed on the sliding door, and the gear is engaged with the rack. By adopting the above structure, the motor can drive the sliding door to open and close.

[0009] Preferably, the sliding door is installed on the side wall inside the detection box; the top and bottom of the detection box are provided with guide grooves compatible with the thickness of the sliding door, and the lower end of the sliding door is supported in the guide grooves by rollers. With the above structure, it has the technical advantages of reliable installation and smooth sliding.

[0010] Preferably, the through hole is a circular hole with a diameter greater than that of the electric telescopic lens. With the above structure, the electric telescopic lens can be ensured to extend outward from the through hole.

[0011] Preferably, the clamping mechanism includes an upper support plate and a lower support plate, the upper support plate and the lower support plate are connected by four groups of bolts, and the upper support plate and the detection box are provided with an adjusting assembly for adjusting the installation height and installation angle of the detection box. With the above structure, the four groups of bolts can lock the upper support plate and the lower support plate on the angle steel of the iron tower, ensuring the stable installation of the detection box. The adjusting assembly can adjust the installation height and left-right inclination angle of the detection box, ensuring that the electric telescopic lens can be more accurately aimed at the insulator.

[0012] Preferably, the adjusting assembly includes four screw rods, the four screw rods are distributed in a rectangular shape between the detection box and the upper support plate, a positioning nut and a locking nut are sleeved on each of the screw rods, the upper ends of the screw rods are rotatably connected to the bottom of the detection box, and the upper support plate is clamped between the positioning nut and the locking nut. With the above structure, adjusting the installation height of the four screw rods can realize the height adjustment of the detection box, and adjusting the height difference of the two screw rods can realize the adjustment of the installation angle of the detection box.

[0013] Preferably, the upper support plate is provided with an assembly hole at the position corresponding to the screw rod, and the assembly hole is a strip-shaped hole.

[0014] Preferably, the upper support plate is provided with a ball head protruding upward in the middle, and the bottom of the detection box is provided with a ball joint seat matched with the ball head. With the above structure, after loosening the four screw rods, the ball head and the ball joint seat can keep the detection box at the angle pre-adjusted position, and then the four screw rods can be locked, which has the technical advantage of convenient adjustment.

[0015] Preferably, the detection box is provided with an antenna.

[0016] The beneficial effects of the present application are:

[0017] 1. The monitoring device is installed on the high-voltage iron tower for a long time, the through hole of the detection box is aimed at the insulator, after the sliding door is automatically opened by the driving mechanism, the electric telescopic lens inside extends outward to perform online monitoring on the insulator.

[0018] 2. Through online monitoring, the technical problems of low efficiency, high work intensity, high risk factors and the like of manual detection are solved.

[0019] 3, through online monitoring, can grasp the running in the insulator pollution degree, namely the salt density value and the gray density value of the insulator, and according to the relevant standard comparison, to determine whether the insulator can continue to withstand various adverse factors. If the salt density value and the gray density value reach or exceed the critical level, take relevant measures to ensure the safety and stability of the power grid operation.

[0020] 4, the monitoring device has the technical advantages of convenient installation, height and angle adjustment. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a structure diagram of the insulator pollution degree online monitoring device;

[0022] Figure 2 It is a sectional view of the online monitoring device at the position of the electric telescopic lens 2;

[0023] Figure 3 It is a sectional view of the online monitoring device at the position of the ball head 6a2 and the ball hinge seat 1b;

[0024] Figure 4 It is a partial schematic diagram showing the working principle of the driving mechanism 5;

[0025] Figure 5 It is a reference diagram of the use state of the present application. DETAILED DESCRIPTION

[0026] The present application will be further described below in conjunction with the embodiments and drawings.

[0027] As shown in Figure 1 , 2 and 3, an insulator pollution degree online monitoring device, the structure includes a detection box 1, the detection box 1 front side wall is provided with a circular hole 1a, the detection box 1 corresponding to the position of the hole 1a is slidably installed with a sliding door 4, the sliding door 4 and the detection box 1 between the driving mechanism 5 is arranged, the driving mechanism 5 can drive the sliding door 4 sliding, so that the hole 1a is closed, or make the hole 1a exposed. The detection box 1 is installed with image acquisition unit 3, the image acquisition unit 3 includes the electric telescopic lens 2 driving its telescopic movement, the diameter of the electric telescopic lens 2 is slightly smaller than the diameter of the hole 1a, the sliding door 4 opens, the electric telescopic lens 2 can drive the image acquisition unit 3 from the hole 1a to extend out of the detection box 1, the image acquisition unit 3 is a conventional pollution degree acquisition unit, can be used for detecting the pollution of the insulator 8. The data processing unit is also connected behind the image acquisition unit 3, the data processing unit is used for calculating the pollution degree of the insulator A.

[0028] Please refer to Figure 5The bottom of the detection box 1 is provided with a clamping mechanism 6, and the online monitoring device can be fixedly installed on the angle steel 9 of the iron tower through the clamping mechanism 6. After the online monitoring device is installed, the through hole 1a of the detection box 1 is opposite to the insulator 8. In the normal state, the sliding door 4 is in the closed state, and all electronic elements are closed in the detection box 1, so that the electronic elements can be prevented from being interfered by electromagnetic interference. When it is necessary to detect the contamination degree of the insulator 8, the driving mechanism 5 drives the sliding door 4 to open, so that the through hole 1a is exposed, the electric telescopic lens 2 in the inside is extended outward, and then the image acquisition unit 3 at the front end of the lens can perform contamination degree recognition detection. In reverse, the image acquisition unit 3 can be retracted to the inside of the detection box 1.

[0029] In order to improve the anti-radiation capability of the detection box 1, a hollow sandwich 1d is arranged on the wall thickness of the detection box 1, so as to ensure the stability of the related electrical elements in the inside of the detection box 1.

[0030] As shown in FIGS. 1, 2 and 3, Figure 3 and 4 As shown in FIGS. 1, 2 and 3, the driving mechanism 5 includes a motor 5a installed in the inside of the detection box 1, a gear 5b installed on the output shaft of the motor 5a, and a rack 5c installed on the sliding door 4. The gear 5b is engaged with the rack 5c, the motor 5a works to drive the sliding door 4 to slide in the inside of the detection box 1, and then the opening and closing of the through hole 1a are realized.

[0031] As shown in FIGS. 1, 2 and 3, Figure 2 As shown in FIGS. 1, 2 and 3, the sliding door 4 is installed on the inside side wall of the front part of the detection box 1, the top and the bottom of the detection box 1 are provided with guide grooves 1c, the guide grooves 1c are adapted to the thickness of the sliding door 4, the upper and lower ends of the sliding door 4 are slidably installed in the guide grooves 1c, and the lower end of the sliding door 4 is slidably supported in the guide groove 1c through a roller 4a. In this way, the sliding door 4 has the technical advantages of reliable installation and smooth sliding.

[0032] As shown in FIGS. 1, 2 and 3, Figure 1 As shown in FIGS. 1, 2 and 3, the detection box 1 is provided with an antenna 7, the antenna 7 is electrically connected with the electric telescopic lens 2, the motor 5a and the like through a control module. In this way, the staff can remotely control the monitoring device through signals.

[0033] In the embodiment, the clamping mechanism 6 has the following implementation structure:

[0034] As shown in FIGS. 1, 2 and 3, Figure 1 and Figure 3 The clamping mechanism 6 includes an upper support plate 6a and a lower support plate 6b. The upper support plate 6a is located at the bottom of the detection box 1, and four groups of bolts 6d are arranged between the upper support plate 6a and the lower support plate 6b. In combination with the attached Figure 5 As can be seen, the four groups of bolts 6d can fixedly assemble the upper support plate 6a and the lower support plate 6b on the angle steel 9 of the iron tower, and then realize the fixed installation of the monitoring device.

[0035] Further, the upper support plate 6a is provided with an adjusting assembly 6c between the detection box 1, and the adjusting assembly 6c includes four screw rods 6c1, which are distributed in a rectangle between the detection box 1 and the upper support plate 6a, and each of the screw rods 6c1 is sleeved with a positioning nut 6c2 and a locking nut 6c3, the upper end of the screw rod 6c1 is rotatably connected with the bottom of the detection box 1, the upper support plate 6a is provided with an assembly hole 6a1 at the position corresponding to the screw rod 6c1, the screw rod 6c1 passes downward through the assembly hole 6a1, the positioning nut 6c2 is located on the upper side of the upper support plate 6a, and the locking nut 6c3 is located on the lower side of the upper support plate 6a. By adjusting the height of the positioning nut 6c2 and the locking nut 6c3 on the screw rod 6c1, the installation height of the detection box 1 can be adjusted. In addition, by adjusting the height difference between the left end screw rod 6c1 and the right end screw rod 6c1, the installation angle of the detection box 1 can be adjusted. The setting of the adjusting assembly 6c can make the online monitoring device realize multi-scene installation and have a wider application range.

[0036] For example Figure 1 As shown in the figure, the assembly hole 6a1 is a strip-shaped hole, which can avoid the rotation interference of the screw rod 6c1 when adjusting the installation angle of the detection box 1, so that the screw rod 6c1 can maintain a vertical posture.

[0037] For example Figure 3 As shown in the figure, the middle part of the upper support plate 6a is provided with a spherical head 6a2 protruding upward, and the bottom of the detection box 1 is provided with a spherical hinge seat 1b, and the spherical head 6a2 is connected to the spherical hinge seat 1b. When adjusting the installation angle of the detection box 1, the rotation resistance between the spherical head 6a2 and the spherical hinge seat 1b can keep the detection box 1 at the target angle, and then the four screw rods 6c1 can be locked, which can significantly improve the adjustment convenience and adjustment accuracy.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present application, and those skilled in the art can make various similar modifications under the inspiration of the present application without departing from the purpose and scope of the present application. Such changes fall within the scope of the present application.

Claims

1. An online monitoring device for insulator pollution level, characterized in that: The system includes a detection box (1), an image acquisition unit (3) installed inside the detection box (1), a through hole (1a) on one side of the detection box (1), and an image acquisition unit (3) including an electric telescopic lens (2) which can extend out of the detection box (1) through the through hole (1a). A sliding door (4) is slidably installed on the detection box (1) at the position corresponding to the through hole (1a). A driving mechanism (5) is provided between the sliding door (4) and the detection box (1). The driving mechanism (5) is used to drive the sliding door (4) to close the through hole (1a) or to expose the through hole (1a). A clamping mechanism (6) is provided at the bottom of the detection box (1). The clamping mechanism (6) is used to fix the connection with the iron tower. The clamping mechanism (6) includes an upper support plate (6a) and a lower support plate (6b). The upper support plate (6a) and the lower support plate (6b) are connected by four sets of bolts (6d). An adjustment assembly (6c) is provided between the upper support plate (6a) and the detection box (1). The adjustment assembly (6c) is used to adjust the installation height and installation angle of the detection box (1). The adjustment assembly (6c) includes four screws (6c1). The four screws (6c1) are located in the detection box. (1) The screw (6c1) is arranged in a rectangular shape with the upper support plate (6a). The screw (6c1) is fitted with a positioning nut (6c2) and a locking nut (6c3). The upper end of the screw (6c1) is rotatably connected to the bottom of the detection box (1). The upper support plate (6a) is sandwiched between the positioning nut (6c2) and the locking nut (6c3). The upper support plate (6a) has an assembly hole (6a1) at the position corresponding to the screw (6c1). The assembly hole (6a1) is a strip hole. The detection box (1) has a hollow interlayer (1d) on its wall.

2. The online monitoring device for insulator pollution level according to claim 1, characterized in that: The drive mechanism (5) includes a motor (5a) installed inside the detection box (1), a gear (5b) installed on the output shaft of the motor (5a), and a rack (5c) installed on the sliding door (4), wherein the gear (5b) meshes with the rack (5c).

3. The online monitoring device for insulator pollution level according to claim 1, characterized in that: The sliding door (4) is installed on the side wall inside the detection box (1); the top and bottom of the detection box (1) are provided with guide grooves (1c) adapted to the thickness of the sliding door (4), and the lower end of the sliding door (4) is slidably supported in the guide groove (1c) by rollers (4a).

4. The online monitoring device for insulator pollution level according to claim 1, characterized in that: The through hole (1a) is a round hole with a diameter larger than that of the electric telescopic lens (2).

5. The online monitoring device for insulator pollution level according to claim 1, characterized in that: The upper support plate (6a) has an upwardly protruding ball head (6a2) in the middle, and the bottom of the detection box (1) has a ball joint seat (1b) that matches the ball head (6a2).

6. The online monitoring device for insulator pollution level according to claim 1, characterized in that: The detection box (1) is equipped with an antenna (7).

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