Smart power grid insulator pollution monitoring device based on RF short-distance communication technology

Abstract

The utility model discloses an intelligent power grid insulator pollution monitoring device based on an RF short-distance communication technology, and relates to the technical field of insulator pollution monitoring. Comprising a mounting frame, a pollution monitoring device body and an RF data receiving terminal, the pollution monitoring device body is mounted on the power transmission line equipment through a mounting frame, the pollution monitoring device body comprises a device shell, a water storage funnel, a battery, a control circuit board and a water tank are mounted in the shell, and an RF data signal transmitter and a pollution degree detection assembly are mounted outside the shell; a water inlet in the water storage funnel is connected with the water tank through a water injection control assembly, a drainage control assembly is mounted at a water outlet, and a conductivity monitoring probe of the pollution degree detection assembly penetrates through the shell and extends into the water storage funnel. The device can monitor the degree of dirt on the surface of the insulator regularly or irregularly, provides light energy change parameters and external environment temperature and humidity parameters, provides basic data for subsequent calculation of the degree of dirt attached to the surface of the insulator, and prevents insulation pollution flashover.

Description

Technical Field

[0001] This utility model relates to the field of insulator pollution monitoring technology, and in particular to a smart grid insulator pollution monitoring device based on RF short-range communication technology. Background Technology

[0002] External insulation flashover is a major challenge hindering the safe operation of power systems. Insulators, widely used in power systems, are susceptible to contamination from atmospheric pollutants such as sulfur dioxide, ammonia oxides, and particulate dust. This contamination accumulates on their surfaces, severely affecting their electrical characteristics and jeopardizing grid safety. With increasing grid capacity and transmission voltage levels, and especially with further deterioration of air quality, the situation regarding flashover prevention remains extremely serious. Therefore, regular monitoring of insulator contamination levels is necessary to proactively prevent flashover. Utility Model Content

[0003] To address the aforementioned issues, this invention provides a smart grid insulator pollution monitoring device based on RF short-range communication technology. This device can periodically or irregularly monitor the degree of contamination on the insulator surface, providing parameters for light energy variation and external environmental temperature and humidity, thus providing basic data for subsequent calculations of the degree of contamination on the insulator surface.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A smart grid insulator pollution monitoring device based on RF short-range communication technology includes a mounting frame, a pollution monitoring device body, and an RF data receiving terminal;

[0006] The pollution monitoring device is mounted on the power transmission line equipment via a mounting bracket. The device includes a housing, with a water storage funnel installed in the upper part of the housing and a battery, control circuit board, and water tank installed in the lower part. An RF data signal transmitter and a pollution degree detection component are also installed on the outside of the housing. The water storage funnel has an inlet and an outlet. The inlet is connected to the water tank via a water injection control component, and a drainage control component is installed at the outlet. The conductivity monitoring probe of the pollution degree detection component extends through the housing into the water storage funnel. The battery is electrically connected to the water injection control component, drainage control component, and pollution degree detection component via the control circuit board. The control circuit board is communicatively connected to an RF data receiving terminal via the RF data signal transmitter.

[0007] Furthermore, the outer shell of the device includes an upper shell and a lower shell, both of which are hollow cylindrical structures; the upper shell is connected to the lower shell through an annular connecting plate, and the diameter of the upper shell is smaller than that of the lower shell; a connecting plate is installed at the bottom of the lower shell, which is bolted to the mounting bracket through the connecting plate.

[0008] Furthermore, the connecting frame includes a support crossbar and a device mounting base; the four corners of the device mounting base are mounted on the support crossbar by bolted frames, and the device mounting base is bolted to the connecting plate at the bottom of the lower housing.

[0009] Furthermore, the water injection control component includes a water injection pump installed in the water tank, and a water injection pipeline connecting the water injection pump and the water inlet; the water injection pump is electrically connected to the battery via a control circuit board.

[0010] Furthermore, the drainage control assembly includes an electric piston and a piston holder. The electric piston is fixedly installed inside the housing by the piston holder and is located at the bottom of the water storage funnel. The water storage funnel opens or closes its outlet by moving the piston rod up and down. The electric piston is electrically connected to the battery through a control circuit board.

[0011] Furthermore, the contamination detection component includes an optical fiber sensor, which is installed inside an annular cover outside the upper housing. One end of the optical fiber sensor is connected to a conductivity monitoring probe, and the other end is connected to a laser, a photoelectric converter, and an optical power meter. The optical power meter and the laser are electrically connected to the battery through a control circuit board. The optical power meter is communicatively connected to an RF data receiving terminal through an RF data signal transmitter.

[0012] Furthermore, an electromagnetic coil is installed on the water storage funnel, and the electromagnetic coil is connected to the control circuit board via a connecting wire; several magnetic stir bar are placed inside the water storage funnel.

[0013] Furthermore, an external ambient temperature and humidity sensor is also installed on the outside of the housing, and the external ambient temperature and humidity sensor is connected to the RF data receiving terminal through an RF data signal transmitter.

[0014] Furthermore, a photovoltaic panel is also installed on the mounting frame, and the photovoltaic panel is electrically connected to the battery.

[0015] This smart grid insulator pollution monitoring device based on RF short-range communication technology has the following beneficial effects:

[0016] This smart grid insulator pollution monitoring device, based on RF short-range communication technology, can periodically or irregularly monitor the degree of pollution on the insulator surface. After scraping off the pollution from the insulator surface, the device places the sample into a water storage funnel. The water and pollution are then mixed in the funnel, and the light energy change parameters are monitored by the pollution degree detection component. This provides basic data for subsequent calculation of the degree of pollution on the insulator surface, and helps to prevent pollution from affecting the electrical characteristics of the insulator and causing flashover.

[0017] During the detection process, the smart grid insulator pollution monitoring device based on RF short-range communication technology can remotely control processes such as water injection, water-pollution mixing, drainage, and data transmission, achieving a high degree of automation. Furthermore, this device can also provide external environmental temperature and humidity parameters, providing more basic data for subsequent calculations of the degree of contamination on the insulator surface. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of the smart grid insulator pollution monitoring device based on RF short-range communication technology of this utility model;

[0020] Figure 2 This is a schematic diagram showing the connection between the main body of the pollution monitoring device and the device mounting base of this utility model;

[0021] Figure 3 This is a schematic diagram of the overall structure of the pollution monitoring device of this utility model;

[0022] Figure 4 This is a schematic diagram of the internal structure of the pollution monitoring device of this utility model;

[0023] In the diagram: 1. Support crossbar; 2. Device mounting base; 3. Bolted frame; 4. Pollution monitoring device body; 5. Device housing; 6. Water storage funnel; 7. Battery; 8. Control circuit board; 9. Water tank; 10. RF data signal transmitter; 11. Water inlet; 12. Water outlet; 13. Conductivity monitoring probe; 14. Upper housing; 15. Lower housing; 16. Annular connecting plate; 17. Connecting plate; 18. Water injection pipeline; 19. Electric piston; 20. Piston fixing frame; 21. Fiber optic sensor; 22. Annular cover; 23. Electromagnetic coil; 24. Magnetic stirrer; 25. External environmental temperature and humidity sensor; 26. Photovoltaic panel; 27. RF data receiving terminal. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0025] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely illustrates some embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model. It should be noted that, in the absence of conflict, the embodiments and features and technical solutions in the embodiments of this utility model can be combined with each other. It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0026] This embodiment proposes a smart grid insulator pollution monitoring device based on RF short-range communication technology; such as... Figure 1 As shown, the smart grid insulator pollution monitoring device based on RF short-range communication technology includes a mounting frame, a pollution monitoring device body 4, and an RF data receiving terminal 27.

[0027] The pollution monitoring device is installed on the power transmission line equipment via a mounting frame. The mounting frame can be bolted to the power transmission line equipment such as pole crossarms. The mounting frame serves as the mounting carrier for the device, maintaining the stability of the equipment installation. Figure 1 and Figure 2 As shown, the mounting frame in this embodiment includes a support crossbar 1 and a device mounting base 2; the four corners of the device mounting base 2 are mounted on the support crossbar 1 by bolted frames 3. The support crossbar 1 is used to connect with the power transmission line equipment, and the device mounting base 2 is used to cooperate with the installation of the pollution monitoring device.

[0028] The pollution monitoring device body 4 is used to detect pollution on the insulators. For example... Figure 2 The pollution monitoring device body 4 includes a device shell 5, which includes an upper shell 14 and a lower shell 15. Both the upper shell 14 and the lower shell 15 are hollow cylindrical structures. The upper shell 14 is connected to the lower shell 15 through an annular connecting plate 16. The diameter of the upper shell 14 is smaller than the diameter of the lower shell 15. A connecting plate 17 is installed at the bottom of the lower shell 15. The lower shell 15 is bolted to the device mounting base 2 of the mounting frame through the connecting plate 17, thereby realizing the installation and fixation of the pollution monitoring device body 4 relative to the mounting frame.

[0029] like Figure 2 and Figure 3 As shown, an RF data signal transmitter 10 and a contamination detection component are also installed on the exterior of the device housing 5. A water storage funnel 6 is installed in the upper part of the device housing 5, and the water storage funnel 6 has an inlet 11 and an outlet 12. (As shown...) Figure 2 As shown, the contamination detection component includes a fiber optic sensor 21, which is installed inside an annular cover 22 outside the upper housing 14. One end of the fiber optic sensor 21 is connected to a conductivity monitoring probe 13, such as... Figure 3 As shown, the conductivity monitoring probe 13 of the contamination detection component extends through the outer shell into the water storage funnel 6; the other end of the fiber optic sensor 21 is connected to a laser, a photoelectric converter, and an optical power meter. The laser, photoelectric converter, and optical power meter are supporting products of the fiber optic sensor 21 and are not shown in the figure. In this embodiment, the fiber optic sensor 21 and the conductivity monitoring probe 13 are commercially available finished equipment, such as the TippkemperMatrix IRS-U-2LA S99 fiber optic sensor.

[0030] Furthermore, to improve the automation level of the pollution monitoring device body 4, such as... Figure 4 As shown, in this embodiment, a battery 7, a control circuit board 8, and a water tank 9 are installed in the lower part of the device housing 5. The water inlet 11 on the water storage funnel 6 is connected to the water tank 9 through a water injection control assembly to achieve remote water injection. The water injection control assembly includes a water pump installed inside the water tank 9 (not shown in the diagram) and a water injection pipe 18 connecting the water pump and the water inlet 11. Simultaneously, considering the issue of automatic drainage, such as... Figure 4 As shown, in this embodiment, a drainage control component is also installed at the outlet 12 of the water storage funnel 6; the drainage control component includes an electric piston 19 and a piston fixing bracket 20. The electric piston 19 is fixedly installed in the outer shell through the piston fixing bracket 20 and is located at the bottom of the water storage funnel 6; the water storage funnel 6 opens or blocks its outlet 12 by moving the piston rod up and down.

[0031] In addition, after scraping the dirt off the surface of the insulator with a wooden scraper and placing it in the water storage funnel 6, manual mixing of the water and dirt is required. To automate this process, such as... Figure 3 and Figure 4 As shown, in this embodiment, several magnetic stir bar 24s are placed inside the water storage funnel 6, and an electromagnetic coil 23 is also installed on the water storage funnel 6. The electromagnetic coil 23 generates a rotating magnetic field, which causes the magnetic stir bar to rotate, realizing the automatic mixing and stirring process of water and dirt. The magnetic stir bar and electromagnetic coil 23 are commercially available finished equipment, such as various specifications of PTFE magnetic stir bar from the Prandtl brand.

[0032] The connection relationships of the electrical components of the main body 4 of the pollution monitoring device are as follows:

[0033] The battery 7 is electrically connected to the water pump of the water injection control component, the electric piston 19 of the drainage control component, the fiber optic sensor 21 of the dirtiness detection component, and the electromagnetic coil 23 of the control circuit board 8 to supply power to the various electrical components. The control circuit board 8 is communicatively connected to the RF data receiving terminal 27 via the RF data signal transmitter 10 to receive control commands for the various electrical components, thereby controlling the start and stop of the electrical components and data transmission. In addition, the optical power meter and laser in the fiber optic sensor 21 are electrically connected to the battery 7 via the control circuit board 8; the optical power meter is communicatively connected to the RF data receiving terminal 27 via the RF data signal transmitter 10 to realize the transmission of light energy change parameters. It should be noted that among the above electrical components, the battery 7, water pump, electric piston 19, control circuit board 8, RF data signal transmitter 10, and RF data receiving terminal 27 are all commercially available finished products, such as: Arduino Uno R3 control circuit board, Panasonic 18650 Li-ion battery, Texas Instruments CC1101 RF transceiver module, Festo Parker P1D series electric piston, and Cole-Parmer Masterflex series water pump.

[0034] The working principle of this smart grid insulator pollution monitoring device based on RF short-range communication technology is as follows:

[0035] The basic principle of fiber optic sensor 21 for measuring contamination is based on the theory of optical field distribution in dielectric waveguides and the mechanism of optical energy loss. Light transmission loss is very small; contamination particles increase the refractive index, altering the optical energy parameters. Therefore, the change in optical energy parameters is the fundamental data for calculating the salt density and ash density of contamination adhering to the insulator surface.

[0036] After the smart grid insulator pollution monitoring device based on RF short-range communication technology is installed on the transmission line equipment, when it is necessary to monitor the surface pollution of the insulator, the operator can scrape off the pollution from the surface of the insulator with a wooden scraper and place it in the water storage funnel 6. Then, the operation of each component is remotely controlled through the RF data receiving terminal 27 and the RF data signal transmitter 10. First, the water injection pump of the water injection control component is started, and the water injection pump injects water from the water tank 9 into the water storage funnel 6 through the water inlet 11; then the electromagnetic coil 23 is energized, and the magnetic stirrer 24 is used to mix the water and the pollution; after mixing for a certain period of time, the fiber optic sensor 21 is started, the laser emits a beam, and at the same time the photoelectric converter and the optical power meter detect the change of light energy parameters, and the detected light energy change parameters are transmitted back to the RF data receiving terminal 27 through the RF data signal transmitter 10 for storage, providing basic data for subsequent calculation of the degree of pollution on the insulator surface; finally, the piston rod of the electric piston 19 of the drainage control component is moved down, so that the mixture in the water storage funnel 6 is discharged from the water outlet 12.

[0037] Furthermore, as a preferred technical solution in this embodiment, such as Figure 2 As shown, in this embodiment, an external ambient temperature and humidity sensor 25 is also installed on the outside of the housing. The external ambient temperature and humidity sensor 25 is connected to the RF data receiving terminal 27 through the RF data signal transmitter 10, thereby transmitting the external ambient temperature and humidity parameters to the RF data receiving terminal 27 to provide more basic data for subsequent calculation of the degree of contamination on the surface of the insulator.

[0038] Furthermore, as a preferred technical solution in this embodiment, such as Figure 1 As shown, in this embodiment, a photovoltaic panel 26 is also installed on the mounting frame, and the photovoltaic panel 26 is electrically connected to the battery 7. The photovoltaic panel 26 is a commercially available finished product, such as a Renogy 100W 12V small photovoltaic panel, which converts solar energy into electrical energy and extends the service life of the battery 7.

[0039] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A smart grid insulator pollution monitoring device based on RF short-range communication technology, characterized in that: It includes a mounting bracket, the main body of the pollution monitoring device, and a data receiving terminal; The pollution monitoring device is mounted on the power transmission line equipment via a mounting bracket. The device includes a housing, with a water storage funnel installed in the upper part of the housing and a battery, control circuit board, and water tank installed in the lower part. An RF data signal transmitter and a pollution degree detection component are also installed on the outside of the housing. The water storage funnel has an inlet and an outlet. The inlet is connected to the water tank via a water injection control component, and a drainage control component is installed at the outlet. The conductivity monitoring probe of the pollution degree detection component extends through the housing into the water storage funnel. The battery is electrically connected to the water injection control component, drainage control component, and pollution degree detection component via the control circuit board. The control circuit board is communicatively connected to an RF data receiving terminal via the RF data signal transmitter.

2. The smart grid insulator pollution monitoring device based on RF short-range communication technology according to claim 1, characterized in that: The device housing includes an upper housing and a lower housing, both of which are hollow cylindrical structures. The upper housing is connected to the lower housing via an annular connecting plate, and the diameter of the upper housing is smaller than that of the lower housing. A connecting plate is installed at the bottom of the lower housing, which is bolted to the mounting bracket via the connecting plate.

3. The smart grid insulator pollution monitoring device based on RF short-range communication technology according to claim 2, characterized in that: The connecting frame includes a support crossbar and a device mounting base; the four corners of the device mounting base are mounted on the support crossbar by bolted frames, and the device mounting base is bolted to the connecting plate at the bottom of the lower housing.

4. The smart grid insulator pollution monitoring device based on RF short-range communication technology according to claim 1, characterized in that: The water injection control assembly includes a water injection pump installed in the water tank, and a water injection pipeline connecting the water injection pump and the water inlet; the water injection pump is electrically connected to the battery via a control circuit board.

5. The smart grid insulator pollution monitoring device based on RF short-range communication technology according to claim 1, characterized in that: The drainage control assembly includes an electric piston and a piston holder. The electric piston is fixedly installed inside the housing by the piston holder and is located at the bottom of the water storage funnel. The water storage funnel opens or closes its outlet by moving the piston rod up and down. The electric piston is electrically connected to the battery via a control circuit board.

6. The smart grid insulator pollution monitoring device based on RF short-range communication technology according to claim 1, characterized in that: The contamination detection component includes an optical fiber sensor, which is installed inside an annular cover outside the upper housing. One end of the optical fiber sensor is connected to a conductivity monitoring probe, and the other end is connected to a laser, a photoelectric converter, and an optical power meter. The optical power meter and laser are electrically connected to the battery via a control circuit board; the optical power meter is communicatively connected to the RF data receiving terminal via an RF data signal transmitter.

7. The smart grid insulator pollution monitoring device based on RF short-range communication technology according to claim 1, characterized in that: The water storage funnel is also equipped with an electromagnetic coil, which is connected to the control circuit board via a connecting wire; several magnetic stir bar are placed inside the water storage funnel.

8. The smart grid insulator pollution monitoring device based on RF short-range communication technology according to claim 1, characterized in that: An external ambient temperature and humidity sensor is also installed on the outside of the housing. The external ambient temperature and humidity sensor is connected to the RF data receiving terminal via an RF data signal transmitter.

9. The smart grid insulator pollution monitoring device based on RF short-range communication technology according to claim 1, characterized in that: The mounting frame is also equipped with a photovoltaic panel, which is electrically connected to the battery.

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