Insulating oil pressure test bench

Abstract

The utility model belongs to insulating oil test technical field especially, is a kind of insulating oil withstand voltage test board, the temperature adaptability of the background technology proposed is poor, and the problem of electrode spacing adjustment fixation, the following scheme is presented now, including table body, the bottom of the table body top outer wall is fixedly connected with base, and the base top outer wall is fixedly connected with water tank, the water tank bottom inner wall is fixedly connected with electric heater by screw, and electric heater is located in the inside of base.The utility model is through the integration electric heater and temperature sensor, realizes the multi-grade regulation of insulating oil temperature in water tank, ensures that test environment and real working condition are identical, significantly improves detection accuracy, adopts electrode pitch adjusting assembly, through the mutual cooperation of inner ring, outer ring, screw rod and observation hole, operating personnel can rotate screw rod and slightly adjust the position of movable electrode column, combined with scale line intuitive reading interval numerical value, greatly improve the accuracy of regulation, can satisfy a variety of test standard requirements.

Description

Technical Field

[0001] This utility model relates to the field of insulating oil testing technology, and in particular to an insulating oil withstand voltage test bench. Background Technology

[0002] Insulating oil is an important insulating medium in electrical equipment (such as transformers and capacitors), and its withstand voltage performance directly affects the safe operation of the equipment. The withstand voltage test of insulating oil involves applying a high-voltage electric field and measuring the breakdown voltage of the insulating oil under certain conditions to evaluate its insulation performance. This test is usually conducted in a standardized laboratory environment, and by measuring the breakdown voltage of the oil sample at a specific electrode spacing, it is determined whether the oil quality meets the usage requirements.

[0003] However, existing insulating oil withstand voltage testing techniques have some shortcomings:

[0004] First, poor temperature adaptability: most existing equipment cannot perform tests under variable temperature conditions. Since the performance of insulating oil is greatly affected by temperature (such as viscosity, dielectric strength, etc.), test results at a single temperature cannot fully reflect the oil quality under actual working conditions, resulting in insufficient test accuracy.

[0005] Secondly, the electrode spacing adjustment is fixed: the electrode spacing adjustment of traditional testing equipment usually relies on a spacing plate of fixed width. The spacing plate is placed between two electrodes, and the way the spacing is adjusted is fixed, which makes it difficult to meet the diverse requirements of different standards for electrode spacing. Utility Model Content

[0006] In view of the shortcomings of the prior art, this utility model provides an insulating oil withstand voltage test bench, which overcomes the shortcomings of the prior art and effectively solves the problems of poor temperature adaptability and fixed electrode spacing adjustment.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] An insulating oil withstand voltage test bench includes a bench body, a base fixedly connected to the top outer wall of the bench body, and a water tank fixedly connected to the top outer wall of the base. An electric heater is fixedly connected to the bottom inner wall of the water tank by screws, and the electric heater is located inside the base. A temperature sensor is fixedly connected to one side outer wall of the water tank by screws, and an insulating oil cup is embedded in the top inner wall of the water tank. Sleeve assemblies are fixedly connected to both sides outer walls of the insulating oil cup, and an electrode assembly is disposed through the inside of the sleeve assembly. An electrode spacing adjustment assembly is disposed on the outer wall of the sleeve assembly, and a scale line is disposed on one side outer wall of the sleeve assembly.

[0009] Preferably, the bushing assembly includes a horizontal tube and a vertical tube, wherein the horizontal tube is fixedly connected to the outer walls of both sides of the insulating oil cup, and the vertical tube is fixedly connected to the outer wall of the end of the horizontal tube away from the insulating oil cup.

[0010] Preferably, the electrode assembly includes a fixed electrode post, a movable electrode post, and a conical electrode end. The fixed electrode post is fixedly connected to the inner wall of the vertical tube, the movable electrode post is slidably connected to the inner wall of the fixed electrode post, and the conical electrode end is fixedly connected to the outer wall of one end of the movable electrode post, with the conical electrode end located inside the insulating oil cup. Symmetrically distributed connecting sleeves with electrodes are installed on the outer wall of the top of the platform, and the vertical tube is embedded in the inner wall of the top of the connecting sleeve. The fixed electrode post is in close contact with the electrode inside the connecting sleeve.

[0011] Preferably, the electrode spacing adjustment assembly includes an inner ring fixedly connected to the outer wall of the movable electrode post, an outer ring fixedly connected to the outer wall of the inner ring, a screw threaded to the bottom outer wall of the outer ring, and an observation hole opened on one side of the outer wall of the outer ring, with the screw thread tightly attached to the bottom outer wall of the vertical tube and the observation hole located on one side of the scale line.

[0012] Preferably, the top outer wall of the platform is provided with a rectangular frame, and a top cover is hinged to one side of the outer wall of the rectangular frame.

[0013] Preferably, a guide groove is provided on the outer wall of the top of the horizontal tube, and a connecting block is provided at the connection between the outer ring and the inner ring, with the connecting block slidably connected to the inner wall of the guide groove.

[0014] Preferably, one side of the outer wall of the platform is provided with a display screen with temperature control, and the other side of the outer wall of the platform is provided with a data printing area.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. The insulating oil withstand voltage test bench designed in this way integrates an electric heater and a temperature sensor to achieve multi-level adjustment of the temperature of the insulating oil in the water tank, ensuring that the test environment is consistent with the real working conditions and significantly improving the test accuracy;

[0017] 2. The insulating oil withstand voltage test bench designed in this paper adopts an electrode spacing adjustment assembly. Through the cooperation of the inner ring, outer ring, lead screw and observation hole, the operator can finely adjust the position of the movable electrode column by rotating the lead screw and read the spacing value intuitively by combining the scale line, which greatly improves the adjustment accuracy and can meet the requirements of a variety of test standards. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of an insulating oil withstand voltage test bench proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the rectangular frame of an insulating oil withstand voltage test bench proposed in this utility model;

[0020] Figure 3This is a schematic diagram of the water tank connection structure of an insulating oil withstand voltage test bench proposed in this utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the bushing assembly of an insulating oil withstand voltage test bench proposed in this utility model.

[0022] In the diagram: 1. Platform; 2. Base; 3. Water tank; 4. Electric heater; 5. Temperature sensor; 6. Insulating oil cup; 7. Sleeve assembly; 71. Horizontal tube; 72. Vertical tube; 8. Electrode assembly; 81. Fixed electrode post; 82. Movable electrode post; 83. Conical electrode end; 9. Electrode spacing adjustment assembly; 91. Inner ring; 92. Outer ring; 93. Lead screw; 94. Observation hole; 10. Scale line; 11. Guide groove; 12. Rectangular frame; 13. Top cover; 14. Display screen; 15. Data printing area; 16. Connecting sleeve. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Reference Figures 1-4 Example 1: An insulating oil withstand voltage test bench includes a bench body 1. A base 2 is fixedly connected to the top outer wall of the bench body 1, and a water tank 3 is fixedly connected to the top outer wall of the base 2. An electric heater 4 is fixedly connected to the bottom inner wall of the water tank 3 by screws, and the electric heater 4 is located inside the base 2. A temperature sensor 5 is fixedly connected to one side outer wall of the water tank 3 by screws, and an insulating oil cup 6 is embedded in the top inner wall of the water tank 3.

[0025] In this embodiment, an electric heater 4 is fixed to the bottom of the water tank 3 with screws, which heats the water in the water tank 3. The heat is transferred to the insulating oil cup 6 through the water bath, ensuring uniform oil temperature. The temperature sensor 5 monitors the water temperature in real time and feeds the data back to the display screen 14. The user can set the target temperature through the display screen 14, and the system automatically adjusts the heating power.

[0026] Example 2: An insulating oil withstand voltage test bench, wherein a sleeve assembly 7 is fixedly connected to both outer walls of the insulating oil cup 6, and an electrode assembly 8 is disposed through the inside of the sleeve assembly 7. An electrode spacing adjustment assembly 9 is disposed on the outer wall of the sleeve assembly 7, and a scale line 10 is disposed on one outer wall of the sleeve assembly 7. The sleeve assembly 7 includes a horizontal tube 71 and a vertical tube 72, wherein the horizontal tube 71 is fixedly connected to both outer walls of the insulating oil cup 6, and the vertical tube 72 is fixedly connected to the outer wall of the end of the horizontal tube 71 away from the insulating oil cup 6. The electrode assembly 8 includes a fixed electrode post 81, a movable electrode post 82, and a conical electrode end 83. The fixed electrode post 81 is fixedly connected to the inner wall of the vertical tube 72, the movable electrode post 82 is slidably connected to the inner wall of the fixed electrode post 81, and the conical electrode end 83 is fixedly connected to the outer wall of one end of the movable electrode post 82. The conical electrode end 83 is located inside the insulating oil cup 6. The top outer wall of the platform 1 is equipped with symmetrically distributed connecting sleeves 16 with electrodes. The vertical tube 72 is embedded in the top inner wall of the connecting sleeve 16, and the fixed electrode post 81 is tightly attached to the electrode inside the connecting sleeve 16. The electrode adjustment assembly 9 includes an inner ring 91 fixedly connected to the outer wall of the movable electrode post 82, an outer ring 92 fixedly connected to the outer wall of the inner ring 91, a lead screw 93 screwed to the bottom outer wall of the outer ring 92, and an observation hole 94 opened on one side of the outer wall of the outer ring 92. The lead screw 93 is in close contact with the bottom outer wall of the vertical tube 72, and the observation hole 94 is located on one side of the scale line 10.

[0027] In this embodiment, the horizontal tube 71 is fixed on both sides of the insulating oil cup 6, and one end of the vertical tube 72 is embedded in the connecting sleeve 16. The movable electrode post 82 of the electrode assembly 8 can slide horizontally along the inner wall of the fixed electrode post 81. When the lead screw 93 is released, the outer ring 92 can be manually driven to move, thereby moving the movable electrode post 82 and adjusting the distance between the two conical electrode ends 83. After adjustment, the lead screw 93 is tightened. The guide groove 11 ensures a smooth adjustment process, and the scale line 10, together with the observation hole 94, provides accurate readings.

[0028] A rectangular frame 12 is provided on the top outer wall of the platform 1, and a top cover 13 is hinged to one side of the outer wall of the rectangular frame 12. A guide groove 11 is provided on the top outer wall of the horizontal tube 71, and a connecting block is provided at the connection between the outer ring 92 and the inner ring 91, the connecting block being slidably connected to the inner wall of the guide groove 11. A display screen 14 with temperature control is provided on one side of the outer wall of the platform 1, and a data printing area 15 is provided on the other side of the outer wall of the platform 1.

[0029] The rectangular frame 12 and the top cover 13 form a sealed test space to prevent external interference. After the test is completed, the data printing area 15 automatically outputs parameters such as breakdown voltage and temperature, and supports paper archiving.

[0030] Working principle:

[0031] Electrode adjustment: Rotate the lead screw 93, read the value of the scale line 10 through the observation hole 94, and adjust the two conical electrode ends 83 to the target distance.

[0032] Oil sample preparation: Inject insulating oil into insulating oil cup 6. The insulating oil needs to cover the conical electrode end 83. Then close the top cover 13 to form a sealed environment.

[0033] Temperature setting: Set the test temperature via display screen 14, start heating with electric heater 4, and provide real-time feedback data from temperature sensor 5 until the water temperature stabilizes.

[0034] Withstand voltage test: The platform 1 is equipped with a high voltage generator. Start the high voltage generator and gradually increase the voltage until the oil sample breaks down. The system automatically records the breakdown voltage value.

[0035] Data output: The test results are displayed in real time on the display screen 14 and a paper report is generated through the data printing area 15, which includes key parameters such as temperature and breakdown voltage.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An insulating oil withstand voltage test bench, comprising a bench body (1), characterized in that, The platform (1) is fixedly connected to the top outer wall of the base (2), and the top outer wall of the base (2) is fixedly connected to the water tank (3). The bottom inner wall of the water tank (3) is fixedly connected to the electric heater (4) by screws, and the electric heater (4) is located inside the base (2). The outer wall of one side of the water tank (3) is fixedly connected to the temperature sensor (5) by screws, and the inner wall of the top of the water tank (3) is embedded with an insulating oil cup (6). The outer walls of both sides of the insulating oil cup (6) are fixedly connected to the sleeve assembly (7), and the inside of the sleeve assembly (7) is provided with an electrode assembly (8). The outer wall of the sleeve assembly (7) is provided with an electrode spacing assembly (9), and the outer wall of one side of the sleeve assembly (7) is provided with a scale line (10).

2. The insulating oil withstand voltage test bench according to claim 1, characterized in that, The bushing assembly (7) includes a horizontal tube (71) and a vertical tube (72), wherein the horizontal tube (71) is fixedly connected to the outer walls of both sides of the insulating oil cup (6), and the vertical tube (72) is fixedly connected to the outer wall of the end of the horizontal tube (71) away from the insulating oil cup (6).

3. The insulating oil withstand voltage test bench according to claim 1, characterized in that, The electrode assembly (8) includes a fixed electrode post (81), a movable electrode post (82), and a conical electrode end (83). The fixed electrode post (81) is fixedly connected to the inner wall of the vertical tube (72), the movable electrode post (82) is slidably connected to the inner wall of the fixed electrode post (81), and the conical electrode end (83) is fixedly connected to the outer wall of one end of the movable electrode post (82). The conical electrode end (83) is located inside the insulating oil cup (6). The top outer wall of the platform (1) is equipped with symmetrically distributed connecting sleeves (16) with electrodes. The vertical tube (72) is embedded in the top inner wall of the connecting sleeve (16), and the fixed electrode post (81) is tightly attached to the electrode inside the connecting sleeve (16).

4. The insulating oil withstand voltage test bench according to claim 1, characterized in that, The electrode adjustment assembly (9) includes an inner ring (91) fixedly connected to the outer wall of the movable electrode post (82), an outer ring (92) fixedly connected to the outer wall of the inner ring (91), a screw (93) screwed to the bottom outer wall of the outer ring (92), and an observation hole (94) opened on one side of the outer wall of the outer ring (92). The screw (93) is close to the bottom outer wall of the vertical tube (72), and the observation hole (94) is located on one side of the scale line (10).

5. The insulating oil withstand voltage test bench according to claim 1, characterized in that, The platform (1) has a rectangular frame (12) on its top outer wall, and a top cover (13) is hinged to one side of the rectangular frame (12).

6. The insulating oil withstand voltage test bench according to claim 2, characterized in that, The top outer wall of the horizontal tube (71) is provided with a guide groove (11), and a connecting block is provided at the connection between the outer ring (92) and the inner ring (91), and the connecting block is slidably connected to the inner wall of the guide groove (11).

7. The insulating oil withstand voltage test bench according to claim 1, characterized in that, A display screen (14) with temperature control is provided on one side of the outer wall of the platform (1), and a data printing area (15) is provided on the other side of the outer wall of the platform (1).

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