CN103323497B - Electrical power insulator surface salt deposit density detector - Google Patents

Abstract

The invention discloses a salt density detection device on the surface of an electric insulator, which belongs to the technical field of electric power detection and includes a walking control system, a rainwater purification system, a cleaning box and a detection system; it is characterized in that: the rainwater purification system and the water inlet of the cleaning box Connected; the detection system mainly includes a sample holder, in which a salt density measuring device is installed, and the sample holder is connected to the water outlet of the cleaning box; the walking control system mainly includes a sliding base, a track and an electrical control cabinet; the cleaning box is set On the sliding base, the sliding base matches the track and can move on the track along with the arrangement of insulators; the electrical control cabinet is connected with the sliding base through telescopic cables. It is a safe, reliable, high-efficiency, low-consumption, and automatic monitoring and remote control device for detecting salt density on the surface of power insulators without removing the insulator.

Description

Salt density detection device on the surface of power insulators

technical field

The invention relates to the technical field of power system detection, in particular to a device for detecting salt density on the surface of a power insulator.

Background technique

Large-scale pollution flashover events are the primary cause of large-scale power outages in my country's power grids, so preventing pollution flashover events is an important task to ensure the safe operation of transmission lines. Measures to prevent pollution flashover accidents usually need to consider the insulation level of transmission line insulators in a polluted state, and salt density is an important parameter to determine the pollution degree of transmission line insulators. The safe operation of transmission lines plays an extremely important role. At present, the salt density detection of insulators still adopts the manual method, that is, the empty hanging insulators are removed from the transmission line and brought back to the laboratory for offline measurement. Dynamic detection of surface salt density.

Contents of the invention

In view of the above existing problems, the object of the present invention is to provide a safe, reliable, high-efficiency, low-consumption device that can automatically monitor and remotely control the surface salt density of power insulators without removing the insulator.

The technical scheme adopted in the present invention is as follows:

A device for detecting salt density on the surface of a power insulator, including a walking control system, a rainwater purification system, a cleaning box and a detection system; it is characterized in that the rainwater purification system is connected to the water inlet of the cleaning box; the detection system mainly includes a sample holder, A salt density measuring device is installed in the sample container, and the sample container is connected to the water outlet of the cleaning box; the walking control system mainly includes a sliding base, a track and an electrical control cabinet; the cleaning box is set on a sliding base, and the sliding base is connected to the track. It is matched and can move on the track with the arrangement of insulators along the line; the electrical control cabinet is connected with the sliding base through telescopic cables.

According to the above technical scheme, the upper end of the sliding base is installed with a cleaning box through the driving arm; the slide rail is arranged directly under the insulator; a limiter is arranged on the track.

According to the above technical solution, the driving arm is a lifting arm composed of multi-section rods hingedly connected.

According to the above technical solution, the cleaning box is a split combined closed box, which consists of two sliding hemispherical combined boxes to form a sphere or two sliding cube-shaped combined boxes to form a cuboid, and the top of the box is provided with a lead extension. Outlet, water inlet and water outlet are respectively set on the box body.

According to the above technical scheme, the rainwater purification system mainly includes a rainwater collector, a rainwater tank, a filter and softening tank, an insulated water tank, a pump, and a liquid level gauge connected through pipelines. A filter is arranged at the bottom of the rainwater collector, and a rainwater filter is arranged behind the filter. After passing the pump, the rainwater tank is connected with the filter softening tank; the filter softening tank is connected with the heat preservation water tank after passing the pump; the heat preservation water tank is connected with the water inlet of the cleaning box after passing the pump.

According to the above technical scheme, a liquid level gauge is arranged in the heat preservation water tank, and the signal output end of the liquid level gauge is connected with the signal receiving end of the electric control cabinet by wire or wirelessly.

According to the above technical solution, the signal receiving end of the electric control cabinet is also connected with the signal output end of the salt density measuring device by wire or wirelessly.

The working principle of the present invention is: after the detection device in the standby state receives the cleaning instruction, the electric control cabinet controls the sliding base, thereby driving the cleaning box to move to the set insulator and wrap the insulator, and the rainwater purification system collects rainwater and cleans it. After the rainwater is purified, it is transported to the cleaning box to provide pure cleaning water for the cleaning box; after cleaning, the sewage flows into the sample holder from the cleaning box outlet and pipeline for testing. After the test, clean the cleaning box itself and the sample holder with a certain pressure and volume of pure water for the next test.

The invention not only reduces the loss of pollution on the surface of the insulator, avoids errors and huge workload caused by manual sampling and cleaning, but also realizes the automatic monitoring of the salt density on the surface of the insulator, and can reflect the current situation in time without removing the insulator. The degree of pollution can effectively assess the risk of pollution flashover in the power grid and ensure the safe and stable operation of the power grid.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of a device for detecting salt density on the surface of a power insulator according to the present invention.

FIG. 2 is a schematic diagram of a standby state of the detection device of the present invention on the track 13 .

FIG. 3 is a schematic diagram of the cleaning state of the detection device of the present invention on the track 13 .

In the figure 1. Rainwater collector, 2. Filter screen, 3. Rainwater tank, 4. Pump, 5. Filter softening tank, 6. Liquid level gauge, 7. Pipeline, 8. Insulation water tank, 9. Insulator, 10. Cleaning Box, 11. Measuring device, 12. Sample holder, 13. Track, 14. Limiter, 15. Sliding base, 16. Telescopic cable, 17. Driving arm, 18. Water inlet, 19. Water outlet, 20 .Electrical control cabinet.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figure 1-3, a device for detecting salt density on the surface of electric insulators is characterized in that it includes a travel control system, a rainwater purification system, a cleaning box 10 and a detection system. The cleaning box 10 can accommodate insulators 9 and is used for The insulator 9 is cleaned; the rainwater purification system communicates with the water inlet 18 of the cleaning box through the pipeline 7; the detection system mainly includes a sample container 12 for holding the cleaned liquid, and a salt density measuring device 11 is set in the sample container 12, The sample holder 12 communicates with the water outlet 19 of the cleaning box 10 . The walking control system mainly includes a sliding base 15, a track 13 and an electrical control cabinet 20; the cleaning box 10 is arranged on the sliding base 15, and the sliding base 15 matches the track 13 and can be arranged on the track 13 along with the insulators 9. Move; the electrical control cabinet 20 is connected with the driving end of the sliding base 15 through the telescopic cable 16 .

FIG. 2 is a schematic diagram of a standby state of the detection device of the present invention on the track 13 , and FIG. 3 is a schematic diagram of a cleaning state of the detection device of the present invention on the track 13 . After the detection device in the standby state receives the cleaning instruction, the electrical control cabinet controls the sliding base 15, thereby driving the cleaning box 10 to move to the set insulator 9 and wrapping the insulator 9. The rainwater purification system collects and purifies the rainwater After that, it is transported to the cleaning box 10 to provide pure cleaning water for the cleaning box 10; after cleaning, the sewage flows into the sample holder 12 from the cleaning box 10 water outlet 19 and the pipeline 7 for detection. After the detection, the cleaning box 10 itself and the sample holder 12 are cleaned with pure water of a certain pressure and volume, so as to prepare for the next test.

The walking control system is mainly used to determine the operating position of the cleaning box 10, and the electrical control cabinet 20 realizes the dynamic control of the operating state of the entire device, mainly including the control of the rainwater purification system, the cleaning box 10, and the operating state of the detection system. As well as the control of the power supply system and the wireless transmission of detection data in each component.

The cleaning box 10 is a split combined closed box, which consists of two sliding hemispherical combined boxes to form a sphere or two sliding cube-shaped combined boxes to form a cuboid. A water inlet 18 and a water outlet 19 are respectively arranged on the top. After arriving at the position of the insulator to be cleaned, the two combined boxes of the cleaning box 10 are slid and unfolded. After the insulator 9 enters the containment space of the box, the two combined boxes are closed to wrap the insulator 9, and the insulator leads are connected from the top. The lead wire protrudes out of the mouth. Then start to clean, and the cleaned water enters the cleaning box 10 from the water inlet 18 and reaches the set pressure and volume, so that the dirt on the surface of the insulator 9 is cleaned.

The rainwater purification system mainly includes a rainwater collector 1, a rainwater tank 3, a filtering and softening tank 5, an insulated water tank 8, a pump 4, and a liquid level gauge 6, all of which are connected by pipes 7. The rainwater collector 1 is used for the storage of rainwater, the filtering and softening tank 5 is used for filtering and purifying the rainwater, and the liquid level gauge 6 is arranged in the heat preservation water tank 8 to control the water quantity and keep the water level constant. After the rainwater is collected by the rainwater collector 1, it flows into the rainwater tank 3 through the filter screen 2, and under the suction of the pump 4, it flows through the filter softening tank 5 and the heat preservation water tank 8 into the cleaning tank 10.

According to the above scheme, the upper end of the sliding base 15 is installed with the cleaning box 10 through the flexible driving arm 17, so as to adjust the position of the cleaning box 10; the driving arm 17 is a lifting arm composed of multi-section rod hinge connections; ; A limiter 14 is set on the track 13 for driving the parking of the sliding base 15, so that the sliding base 15 can be stopped at a desired position for insulator cleaning.

The invention not only reduces the loss of pollution on the surface of the insulator, avoids errors and huge workload caused by manual sampling and cleaning, but also realizes the automatic monitoring of the salt density on the surface of the insulator, and can reflect the current situation in time without removing the insulator. The degree of pollution can effectively assess the risk of pollution flashover in the power grid and ensure the safe and stable operation of the power grid.

Claims (4)

1. A device for detecting salt density on the surface of a power insulator, including a walking control system, a rainwater purification system, a cleaning box and a detection system; it is characterized in that: the rainwater purification system is connected to the water inlet of the cleaning box; the detection system mainly includes a sample The sample container is equipped with a salt density measuring device, and the sample container is connected to the water outlet of the cleaning box; the walking control system mainly includes a sliding base, a slide rail and an electrical control cabinet; the cleaning box is set on the sliding base, and the sliding base It matches with the slide rail and can move on the slide rail along with the arrangement of the insulators; the electrical control cabinet is connected with the sliding base through a telescopic cable; the upper end of the sliding base is installed with a cleaning box through a flexible driving arm; the slide rail is arranged directly under the insulators ; A limiter is set on the slide rail; the driving arm is a lifting arm composed of a multi-section rod hinged connection; A sliding cube-shaped combination box constitutes a cuboid, the top of the box is provided with a lead-out port, and the box is respectively provided with a water inlet and a water outlet. 2. The salt density detection device according to claim 1, characterized in that: the rainwater purification system mainly includes a rainwater collector, a rainwater tank, a filtering and softening tank, an insulating water tank, a pump, and a liquid level gauge connected through pipelines, A filter is installed at the bottom of the rainwater collector, and a rainwater tank is installed behind the filter. The rainwater tank is connected to the filter and softening tank after passing through the pump; the filter and softening tank is connected to the heat preservation water tank after passing through the pump; . 3. The salt density detection device according to claim 2, characterized in that: a liquid level gauge is installed in the heat preservation water tank, and the signal output end of the liquid level gauge is connected to the signal receiving end of the electrical control cabinet by wire or wirelessly. 4. The salt density detection device according to any one of claims 1-3, characterized in that: the signal receiving end of the electrical control cabinet is also connected to the signal output end of the salt density measuring device by wire or wirelessly.