On-line monitoring device for grounding resistance of power transmission tower

Abstract

The utility model relates to a power transmission tower grounding resistance on-line monitoring device, which aims to solve the technical problem that the use is influenced by excessive heat caused by long-time on-line at present, and comprises a monitor, the lower surface of the monitor is fixedly connected with a water tank, and the front surface of the water tank is provided with a water inlet and a water outlet; according to the utility model, the cooling liquid is filled in the water tank, the heat in the monitor is collected by the heat conduction pipe through the heat collection holes, and the interior of the water tank is pressurized, so that the cooling liquid enters the water sump in the heat dissipation plate along the circulation pipe to cool the equipment, and when the temperature further rises, the liquid in the heat dissipation plate and the water tank is heated; meanwhile, internal air is heated to press a heat conduction rod to drive a water bin to move upwards to a heat dissipation opening in the outer surface of a movable plug to make contact with air to dissipate overheated air, and cooling and heat dissipation in the equipment using process are facilitated; meanwhile, when the equipment is collided, the impact force is partially converted into liquid level fluctuation of cooling liquid in the water tank, so that the amplitude is reduced, and the damping effect of the equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of resistance testers, and particularly relates to an on-line monitoring device for the earthing resistance of transmission towers. Background Art

[0002] A resistance tester is an instrument for measuring the conductivity of an object, and is widely used in occasions such as electrical safety inspections and completion inspections of earthing projects. There are many types of resistance testers, including earthing resistance testers, insulation resistance testers, DC resistance measuring instruments, surface resistance testers, and loop resistance testers.

[0003] During the use of the existing earthing resistance tester for transmission towers, due to the existence of circuits inside, excessive heat will be generated inside the device during long-term on-line monitoring, affecting the normal use of the device. In view of this, we propose an on-line monitoring device for the earthing resistance of transmission towers. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art, meet the actual needs, and provide an on-line monitoring device for the earthing resistance of transmission towers to solve the technical problem that excessive heat affects the use caused by long-term on-line operation currently.

[0005] To achieve the purpose of the utility model, the technical solution adopted by the utility model is: designing an on-line monitoring device for the earthing resistance of transmission towers, including a monitor. The lower surface of the monitor is fixedly connected with a water tank. The front surface of the water tank is provided with a water inlet and a water outlet. The upper surface of the monitor is fixedly connected with a heat dissipation plate. A circulation pipe is fixedly connected inside the inner wall of the monitor. The two ends of the circulation pipe are respectively located at the bottom of the water tank and inside the heat dissipation plate. The upper surface of the water tank is fixedly connected with a heat conduction pipe. A plurality of heat collection holes are evenly opened at the upper end of the outer surface of the heat conduction pipe. A water storage chamber is opened inside the heat dissipation plate. A moving groove is opened on the upper surface of the inner wall of the water storage chamber. A return spring is fixedly connected to the inner wall of the moving groove. The lower end of the return spring is fixedly connected with a pressing plate. A movable plug is fixedly connected to the middle of the pressing plate. A movable plug is opened on the outer surface of the movable plug.

[0006] Preferably, a heat conduction rod is fixedly connected to the lower surface of the pressing plate, and the heat conduction rod is located inside the water storage chamber.

[0007] Preferably, a plurality of heat collection holes are evenly opened at the upper end of the outer surface of the heat conduction pipe, and the positions of the heat collection holes on the outer surface of the heat conduction pipe are located inside the monitor.

[0008] Preferably, the circulation pipe is a small-diameter copper pipe, and the pressing plate is made of copper.

[0009] Preferably, the pressing plate is located in the middle of the moving groove, and air holes that are sealed with the movable plug are formed on the upper surface of the heat dissipation plate.

[0010] Preferably, the water inlet of the water tank is lower than the upper edge of the water tank, and the space where the return spring is located inside the moving groove is communicated with the outside air.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. In the present utility model, the water tank is filled with a coolant. The heat conduction tube collects the heat inside the monitor through the heat collecting holes and pressurizes the inside of the water tank, so that the coolant flows into the water storage chamber inside the heat dissipation plate along the flow tube to provide a cooling effect for the device. When the temperature further rises, the liquids inside the heat dissipation plate and the water tank are heated, and at the same time, the internal air is heated to press the heat conduction rod to drive the water storage chamber to move upward until the heat dissipation port on the outer surface of the movable plug contacts the air to dissipate the overheated air, which is convenient for cooling and heat dissipation during the use of the device.

[0013] 2. In the present utility model, due to the coolant provided inside the water tank, when being impacted, part of the impact force is converted into the liquid level fluctuation of the coolant inside the water tank, thereby reducing the amplitude, which is convenient for improving the shock absorption effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0015] Figure 2 is a schematic diagram of the structure of the flow tube of the present utility model;

[0016] Figure 3 is a schematic diagram of the side sectional structure of the heat dissipation plate of the present utility model;

[0017] Figure 4 is of the present utility model Figure 3 -Schematic diagram of the structure at position A;

[0018] In the figure: 1, monitor; 2, water tank; 3, heat dissipation plate; 4, heat conduction tube; 401, heat collecting hole; 5, flow tube; 6, movable plug; 601, heat dissipation port; 7, return spring; 8, pressing plate; 801, heat conduction rod; 9, water storage chamber; 10, moving groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The present utility model will be further described below with reference to the drawings and embodiments:

[0020] Embodiment: An on-line monitoring device for the grounding resistance of a transmission tower, see Figures 1 to 4, including a monitor 1. A water tank 2 is fixedly connected to the lower surface of the monitor 1. The front surface of the water tank 2 is provided with a water inlet and a water outlet. A heat dissipation plate 3 is fixedly connected to the upper surface of the monitor 1. A circulation pipe 5 is fixedly connected inside the inner wall of the monitor 1. Both ends of the circulation pipe 5 are respectively located at the bottom of the water tank 2 and inside the heat dissipation plate 3. A heat conduction pipe 4 is fixedly connected to the upper surface of the water tank 2. A number of heat collection holes 401 are evenly opened at the upper end of the outer surface of the heat conduction pipe 4. A water storage chamber 9 is opened inside the heat dissipation plate 3. A moving groove 10 is opened on the upper surface of the inner wall of the water storage chamber 9. A reset spring 7 is fixedly connected to the inner wall of the moving groove 10. The lower end of the reset spring 7 is fixedly connected to a pressing plate 8. A movable plug 6 is fixedly connected to the middle of the pressing plate 8. A heat dissipation port 601 is opened on the outer surface of the movable plug 6;

[0021] In the utility model, by filling a coolant inside the water tank 2, collecting the heat inside the monitor 1 through the heat collection holes 401 of the heat conduction pipe 4 and pressurizing the inside of the water tank 2, the coolant is made to flow into the water storage chamber 9 inside the heat dissipation plate 3 along the circulation pipe 5 to provide a cooling effect for the device. When the temperature further rises, the liquid inside the heat dissipation plate 3 and the water tank 2 is heated, and at the same time, the internal air is heated to press the heat conduction rod 801 to drive the water storage chamber 9 to move upward until the heat dissipation port 601 on the outer surface of the movable plug 6 contacts the air to dissipate the overheated air, which is convenient for cooling and heat dissipation during the use of the device.

[0022] Specifically, a heat conduction rod 801 is fixedly connected to the lower surface of the pressing plate 8, and the heat conduction rod 801 is located inside the water storage chamber 9; the heat conduction rod 801 located inside the pressing plate 8 is convenient for conducting the heat of the coolant inside the water storage chamber 9 to the heat conduction rod 801, and for conducting the heat from inside the coolant to the air.

[0023] Furthermore, a number of heat collection holes 401 are evenly opened at the upper end of the outer surface of the heat conduction pipe 4, and the positions of the heat collection holes 401 on the outer surface of the heat conduction pipe 4 are located inside the monitor 1; the number of heat collection holes 401 absorbs and concentrates the heat inside the monitor 1 into the water tank 2, which is convenient for heat dissipation during the long-term online use of the monitor 1.

[0024] Still further, the circulation pipe 5 is a small-diameter copper pipe, and the pressing plate 8 is made of copper; the small-diameter circulation pipe 5 is convenient for the upward movement of the coolant after being pressurized inside the water tank 2, and copper products can have good heat conduction performance.

[0025] It should be noted that the pressing plate 8 is located in the middle of the moving groove 10, and air holes that are sealed with the movable plug 6 are opened on the upper surface of the heat dissipation plate 3; the pressing plate 8 located in the middle of the moving groove 10 avoids its direct contact with the coolant, which is convenient for air to pressurize it.

[0026] It should be noted that the water inlet of the water tank 2 is lower than the upper edge of the water tank 2, and the space where the reset spring 7 is located inside the moving groove 10 is communicated with the external air;

[0027] The water tank 2 with a lower water inlet allows a certain amount of air to be retained inside the water tank 2, facilitating the pressurization of the coolant inside the water tank 2. The position of the return spring 7 inside the moving groove 10 communicating with the external air avoids restricting the upward movement of the pressing plate 8 under pressure.

[0028] Working principle: First, fill the inside of the water tank 2 with coolant. When the monitor 1 generates a certain amount of heat during long-term online use of the device, the heat enters the inside of the heat conduction tube 4 along the heat collection holes 401 and pressurizes the coolant inside the water tank 2, forcing the coolant to move along the flow pipe 5 towards the water storage tank 9 inside the heat dissipation plate 3. When the heat continues to rise, the inside of the heat dissipation plate 3 will continuously receive liquid. At the same time, the high temperature will heat the air inside the heat dissipation plate 3 and the water tank 2, causing the air inside the heat dissipation plate 3 to be heated and exert pressure on the pressing plate 8, causing it to drive the movable plug 6 upward to move out of the air holes on the upper surface of the heat dissipation plate 3. When the heat dissipation port 601 comes into contact with the air, the overheated air is released. At the same time, when the coolant inside the water tank 2 is impacted, part of the impact force is converted into the liquid level fluctuation of the coolant inside the water tank 2, thereby reducing the amplitude, facilitating the improvement of the shock absorption effect of the device, and facilitating the cooling and heat dissipation during the long-term online use of the device.

[0029] The embodiments disclosed in the present utility model are preferred embodiments, but are not limited thereto. Those of ordinary skill in the art can easily understand the spirit of the present utility model based on the above embodiments and make different extensions and changes. However, as long as they do not depart from the spirit of the present utility model, they are within the protection scope of the present utility model.

Claims

1. A transmission tower grounding resistance online monitoring device, comprising a monitoring instrument (1), characterized in that: The lower surface of the monitor (1) is fixedly connected to a water tank (2), the front surface of the water tank (2) is provided with a water inlet and a water outlet, the upper surface of the monitor (1) is fixedly connected to a heat sink (3), the inner wall of the monitor (1) is fixedly connected to a flow pipe (5), the two ends of the flow pipe (5) are respectively located at the bottom of the water tank (2) and the inside of the heat sink (3), the upper surface of the water tank (2) is fixedly connected to a heat pipe (4), the outer surface of the heat pipe (4) is A plurality of heat collecting holes (401) are evenly arranged at the upper end of the surface, a water tank (9) is arranged inside the heat dissipation plate (3), a movable groove (10) is arranged on the upper surface of the inner wall of the water tank (9), a reset spring (7) is fixedly connected to the inner wall of the movable groove (10), a pressure plate (8) is fixedly connected to the lower end of the reset spring (7), a movable plug (6) is fixedly connected to the middle part of the pressure plate (8), and a movable plug (6) is arranged on the outer surface of the movable plug (6).

2. The on-line monitoring device for grounding resistance of a transmission tower according to claim 1, characterized in that: A heat-conducting rod (801) is fixedly connected to the lower surface of the pressing plate (8), and the heat-conducting rod (801) is located inside the water tank (9).

3. The on-line monitoring device for grounding resistance of a transmission tower according to claim 1, characterized in that: A plurality of heat collecting holes (401) are evenly arranged at the upper end of the outer surface of the heat conducting pipe (4), and the heat collecting holes (401) on the outer surface of the heat conducting pipe (4) are located inside the monitoring instrument (1).

4. The on-line monitoring device for grounding resistance of a transmission tower according to claim 1, characterized in that: The circulation pipe (5) is a small-diameter copper pipe, and the pressing plate (8) is made of copper.

5. The on-line monitoring device for grounding resistance of a transmission tower according to claim 1, characterized in that: The pressing plate (8) is located in the middle of the movable groove (10), and the upper surface of the heat dissipation plate (3) is provided with an air hole for maintaining a seal with the movable plug (6).

6. The on-line monitoring device for grounding resistance of a transmission tower according to claim 1, characterized in that: The water inlet of the water tank (2) is lower than the upper edge of the water tank (2), and the space where the return spring (7) is located inside the moving groove (10) is connected to the external air.

Images