Device for accurately simulating heating defect of live detection item

Abstract

The utility model belongs to the technical field of thermal defect simulation, and particularly relates to an accurate heating defect simulation device for live detection items, which comprises a bottom support, a plurality of variable-temperature water tanks A and a plurality of variable-temperature water tanks B are fixedly mounted on the lower side in the bottom support, and a plurality of variable-temperature humidifying devices are fixedly mounted on the upper end face of the bottom support. Any two variable-temperature humidifying devices penetrate through the bottom support and then are fixedly installed with a variable-temperature water tank A. Any two variable-temperature humidifying devices penetrate through the bottom support and then are fixedly installed with a variable-temperature water tank B. A plurality of bottom plates are fixedly installed on the upper end face of the bottom support. Based on a voltage heating principle, the device can simulate tiny temperature rise of the lightning arrester caused by different defects such as poor sealing, damp or insulation medium aging. According to the device, the high-precision heating film is arranged in the lightning arrester, internal heating of the lightning arrester can be realized after a 12V or 24V power supply is adopted to apply pressure to the heating film, and the defect heating degree can be quantitatively adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of simulated thermal defects, in particular to a device for accurately simulating thermal defects for live detection projects. Background Art

[0002] Currently, with the integration of power grid operations and maintenance and the development of core teams across all business operations, infrared temperature measurement of equipment has become a core business of the power grid. Among various substation defects, voltage-induced thermal defects in high-voltage equipment pose particularly severe consequences and are more difficult to diagnose. Precision infrared temperature measurement of voltage-induced thermal defects is also a key live-line inspection item for electrical testing professionals. Among various substation defects, heating defects in substation equipment, particularly those in lightning arresters, transformers, and bushings, pose particularly severe consequences, requiring higher technical skills from grassroots personnel and making analysis and judgment more difficult.

[0003] Existing heating defect simulation devices are generally implemented using heating units and temperature controllers. For example, a Chinese patent for a zinc oxide lightning arrester heating defect simulation device (application number: CN202223243894.6) discloses such a technical solution, which uses a heating unit installed in a zinc oxide lightning arrester to simulate the defects caused by overheating of the lightning arrester; and this method is also one of the most commonly used methods at present, but this method still has some defects, such as: zinc oxide lightning arresters are usually installed outdoors, and are affected by rain, snow, dirt and temperature changes all year round. The operating environment is relatively complex, and the above technology may not be able to fully simulate this complex operating environment, resulting in differences between the simulation results and the actual situation; at the same time, this technical solution also involves a relatively complex structure, and cannot simulate the situation where defects occur in a single location, which makes it impossible to complete the teaching process comprehensively and completely.

[0004] The current lack of an effective physical model for accurately simulating thermal defects has limited research, training, and teaching in infrared temperature measurement technology. This has hindered efforts to improve on-site inspectors' infrared testing capabilities and their ability to proactively detect potential defects, and has hindered scientific research on infrared temperature measurement sensitivity. Therefore, research on voltage-induced thermal defect simulation equipment is urgently needed. Utility Model Content

[0005] In view of the deficiencies in the prior art, the present invention provides a device for accurately simulating heating defects for live detection projects, which solves the problems mentioned in the background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a precise simulation heating defect device for live detection projects, comprising a bottom bracket, a plurality of variable temperature water tanks A and a plurality of variable temperature water tanks B are fixedly installed on the lower side of the bottom bracket, a plurality of variable temperature humidification devices are fixedly installed on the upper end face of the bottom bracket, any two of the variable temperature humidification devices are fixedly installed with the variable temperature water tank A after passing through the bottom bracket, and any two of the variable temperature humidification devices are also fixedly installed with the variable temperature water tank B after passing through the bottom bracket, a plurality of bottom plates are also fixedly installed on the upper end face of the bottom bracket, and a simulated heating lightning arrester is fixedly installed on the upper end face of any of the bottom plates.

[0007] As an optimal technical solution of the present invention, the simulated heating lightning arrester also includes a bottom mounting seat fixedly mounted on the upper end surface of the base plate, the lightning arrester body is fixedly mounted on the upper end surface of the bottom mounting seat, a heating component mounting tube is fixedly mounted inside the lightning arrester body, a number of heating films are also fixedly mounted between the heating component mounting tube and the lightning arrester body, and a head is fixedly mounted between the lightning arrester body and the heating component mounting tube.

[0008] As a preferred technical solution of the present invention, several layers are provided on the arrester body, and any of the layers is correspondingly provided with a heating film.

[0009] As an optimal technical solution of the present invention, the variable temperature humidification device includes a pressure device fixedly installed on the upper end face of the bottom bracket, and an atomizing nozzle is fixedly installed on the upper end face of the pressure device. The pressure device passes through the bottom bracket and is fixedly connected to the variable temperature water tank A or the variable temperature water tank B.

[0010] As an optimal technical solution of the present invention, both the variable temperature water tank A and the variable temperature water tank B are provided with a temperature changing device.

[0011] As an optimal technical solution of the present invention, any two of the heating films are fixedly installed with one end of two cables A, the other end of the two cables A is fixedly installed with one end of a temperature adjustment device, the other end of the temperature adjustment device is fixedly installed with one end of a cable B, and the other end of the cable B is fixedly installed with a main controller.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This utility model, based on the principle of voltage-induced heating, can simulate the slight temperature rise of the arrester caused by various defects such as poor sealing, moisture or aging of the insulating medium. The device places a high-precision heating film inside the arrester. After applying pressure to the heating film with a 12V or 24V power supply, the internal heating of the arrester can be achieved, and the degree of heating of the defect can be quantitatively adjusted. This device can freely set multiple heating points inside the zinc oxide arrester, and can simulate the generation of different heating defects in different parts of the same phase and between phases to achieve better temperature measurement test results. At the same time, the actual size and appearance of the zinc oxide arrester will not be changed after the device is installed.

[0014] 2. This utility model can simulate heating defects under different temperatures, humidity and weather conditions by setting up a variable temperature humidification device, thereby greatly improving our company's hardware equipment strength in infrared detection training, improving trainees' ability to master the detection level of voltage-induced heating defects and discover potential defects in advance, and improving the professional and technical level of operation and maintenance personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 This is the front view of the utility model;

[0018] Figure 4 This is a cross-sectional view of a simulated heating arrester;

[0019] Figure 5 This is a schematic diagram of the circuit connection structure of the utility model.

[0020] In the picture:

[0021] 1. Simulated heating arrester; 11. Heating component mounting tube; 12. Head; 13. Arrester body; 14. Heating film; 15. Bottom mounting base;

[0022] 2. Variable temperature humidification device; 21. Atomizing nozzle; 22. Pressurizing device;

[0023] 3. Variable temperature water tank A; 4. Variable temperature water tank B; 5. Bottom bracket; 6. Bottom plate; 7. Cable A; 8. Cable B; 9. Main controller; 10. Temperature adjustment device. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example

[0025] See also Figure 1-5 The utility model provides the following technical solutions: a precise simulation heating defect device for live detection projects, comprising a bottom bracket 5, a plurality of variable temperature water tanks A3 and a plurality of variable temperature water tanks B4 are fixedly installed on the lower side of the bottom bracket 5, a plurality of variable temperature humidification devices 2 are fixedly installed on the upper end surface of the bottom bracket 5, any two variable temperature humidification devices 2 are fixedly installed with the variable temperature water tank A3 after passing through the bottom bracket 5, and any two variable temperature humidification devices 2 are also fixedly installed with the variable temperature water tank B4 after passing through the bottom bracket 5, a plurality of bottom plates 6 are also fixedly installed on the upper end surface of the bottom bracket 5, and a simulated heating lightning arrester 1 is fixedly installed on the upper end surface of any bottom plate 6.

[0026] In this embodiment, the connection between the bottom bracket 5 and the variable temperature water tank A3 is installed by bolts, and the connection between the bottom bracket 5 and the variable temperature water tank B4 is connected by bolts. The variable temperature humidification device 2 and the bottom bracket 5 are clamped on the bottom bracket 5 by the variable temperature water tank A3 and the variable temperature water tank B4. The variable temperature humidification device 2 and the variable temperature water tank A3 are connected by a sealing gasket buckle. The variable temperature humidification device 2 absorbs water in the variable temperature water tank A3 through a long connecting water pipe. The function of the variable temperature water tank A3 is the same as that of the variable temperature water tank B4, both of which provide a water source for the variable temperature humidification device 2. Three bottom plates 6 are installed on the bottom bracket 5. The connection between the bottom plate 6 and the bottom bracket 5 is connected by bolts. The connection between the bottom plate 6 and the simulated heating lightning arrester 1 is connected by bolts. There are two variable temperature water tanks B4, and each variable temperature water tank B4 is correspondingly provided with two variable temperature humidification devices 2. There are two variable temperature water tanks A3, and each variable temperature water tank A3 is correspondingly provided with two variable temperature humidification devices 2.

[0027] Specifically, the simulated heating arrester 1 also includes a bottom mounting seat 15 fixedly mounted on the upper end surface of the base plate 6, the arrester body 13 is fixedly mounted on the upper end surface of the bottom mounting seat 15, a heating component mounting tube 11 is fixedly mounted inside the arrester body 13, a number of heating films 14 are also fixedly mounted between the heating component mounting tube 11 and the arrester body 13, and a head 12 is fixedly mounted between the arrester body 13 and the heating component mounting tube 11.

[0028] In this embodiment, the bottom mounting seat 15 and the base plate 6 are connected by bolts. The main function of the bottom mounting seat 15 is to support the arrester body 13. A heating component mounting tube 11 is provided inside the arrester body 13. The heating component mounting tube 11 provides an installation position for the heating film 14. There are 8 heating films 14 installed inside each heating component mounting tube 11. The main function of setting up 8 heating films 14 is to achieve heating defects in different situations by controlling each heating film 14. The heating component mounting tube 11 also has the function of connecting the wires, and the function of the head 12 is to prevent the heat source from leaking out.

[0029] Specifically, the arrester body 13 is provided with several layers, and each layer is correspondingly provided with a heating film 14 .

[0030] In this embodiment, the arrester body 13 is provided with 8 layers, and each layer is correspondingly provided with a heating film 14 .

[0031] Specifically, the variable temperature humidifying device 2 includes a pressure device 22 fixedly mounted on the upper end surface of the bottom bracket 5, and an atomizing nozzle 21 is fixedly mounted on the upper end surface of the pressure device 22. The pressure device 22 passes through the bottom bracket 5 and is fixedly connected to the variable temperature water tank A3 or the variable temperature water tank B4.

[0032] In this embodiment, the pressurizing device 22 is fixed to the bottom bracket 5 by bolts. The pressurizing device 22 draws water from the variable temperature water tank A3 or the variable temperature water tank B4, and then pressurizes it, and through the atomization effect of the atomizing nozzle 21, it realizes adaptive changes in the air temperature and humidity around the simulation device.

[0033] Specifically, temperature-changing devices are provided inside the temperature-changing water tank A3 and the temperature-changing water tank B4.

[0034] In this embodiment, the temperature changing device can adjust the temperature of the water in the temperature changing water tank A3 and the temperature changing water tank B4. The temperature changing device adopts a strategy of a refrigerant pipe and a heating rod.

[0035] Specifically, any two heating films 14 are fixedly installed with one end of two cables A7, the other end of the two cables A7 is fixedly installed with one end of the temperature adjustment device 10, the other end of the temperature adjustment device 10 is fixedly installed with one end of the cable B8, and the other end of the cable B8 is fixedly installed with the main controller 9.

[0036] In this embodiment, the main function of the temperature adjustment device 10 is to receive commands sent by the main controller 9 to adjust the temperature of the heating film 14 . Each temperature adjustment device 10 controls two heating films 14 , and the main controller 9 controls four temperature adjustment devices 10 .

[0037] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A device for accurately simulating heating defects for live detection projects, comprising a bottom bracket (5), characterized in that: A plurality of variable temperature water tanks A (3) and a plurality of variable temperature water tanks B (4) are fixedly mounted on the lower inner side of the bottom bracket (5); a plurality of variable temperature humidification devices (2) are fixedly mounted on the upper end surface of the bottom bracket (5); any two of the variable temperature humidification devices (2) are fixedly mounted on the variable temperature water tank A (3) after passing through the bottom bracket (5); any two of the variable temperature humidification devices (2) are also fixedly mounted on the variable temperature water tank B (4) after passing through the bottom bracket (5); a plurality of bottom plates (6) are also fixedly mounted on the upper end surface of the bottom bracket (5); and a simulated heating arrester (1) is fixedly mounted on the upper end surface of any of the bottom plates (6).

2. The device for accurately simulating heating defects for live detection projects according to claim 1, characterized in that: The simulated heating arrester (1) further comprises a bottom mounting seat (15) fixedly mounted on the upper end surface of the base plate (6); the upper end surface of the bottom mounting seat (15) is fixedly mounted with an arrester body (13); a heating component mounting cylinder (11) is fixedly mounted inside the arrester body (13); a plurality of heating films (14) are fixedly mounted between the heating component mounting cylinder (11) and the arrester body (13); and a top head (12) is fixedly mounted between the arrester body (13) and the heating component mounting cylinder (11).

3. The device for accurately simulating heating defects for live detection projects according to claim 2, characterized in that: Several layers are provided on the arrester body (13), and a heating film (14) is correspondingly provided on any of the layers.

4. The device for accurately simulating heating defects for live detection projects according to claim 1, characterized in that: The variable temperature humidifying device (2) includes a pressure device (22) fixedly mounted on the upper end surface of the bottom bracket (5), an atomizing nozzle (21) fixedly mounted on the upper end surface of the pressure device (22), and the pressure device (22) passes through the bottom bracket (5) and is fixedly connected to the variable temperature water tank A (3) or the variable temperature water tank B (4).

5. The device for accurately simulating heating defects for live detection projects according to claim 4, characterized in that: The temperature-changing water tank A (3) and the temperature-changing water tank B (4) are both provided with temperature-changing devices.

6. The device for accurately simulating heating defects for live detection projects according to claim 2, characterized in that: Any two of the heating films (14) are fixedly mounted with one end of two cables A (7), the other end of the two cables A (7) is fixedly mounted with one end of a temperature adjustment device (10), the other end of the temperature adjustment device (10) is fixedly mounted with one end of a cable B (8), and the other end of the cable B (8) is fixedly mounted with a main controller (9).

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