Air medium withstand voltage disruptive discharge test tank

Abstract

The utility model discloses an air medium voltage-withstanding disruptive discharge test tank, belongs to the technical field of discharge test tanks, and solves the problem that equipment for carrying out a disruptive discharge test in a high-low voltage environment is lacked in the prior art. The test tank comprises a pressure tank, the open end of the pressure tank is provided with a sealing door hinged to the pressure tank, an electric door opening and closing assembly used for closing the sealing door is arranged between the sealing door and the pressure tank, the top end of the pressure tank is provided with a plurality of high-voltage output terminals and a plurality of grounding output terminals, and the number of the grounding output terminals corresponds to that of the high-voltage output terminals. One wiring end of the high-voltage output terminal and one wiring end of the grounding output terminal extend into the pressure tank, and one side of the pressure tank is provided with an air pump communicated with the interior of the pressure tank. The air medium withstand voltage disruptive discharge test tank provided by the utility model can be used for carrying out a disruptive discharge test on an insulating material of a product under high air pressure, is good in sealing performance, and effectively improves the accuracy of experimental data.

Description

Technical Field

[0001] The utility model relates to the technical field of discharge test tanks, in particular to an air medium withstand voltage breakdown discharge test tank. Background Art

[0002] Voltage breakdown test equipment is a device used to test the voltage breakdown of solid insulating materials. It is mainly suitable for testing the breakdown strength and voltage withstand time of solid insulating materials under power frequency voltage or DC voltage. Generally, the insulating materials used in new products need to undergo breakdown discharge tests.

[0003] In order to obtain the breakdown discharge data of the product in different environments, the product needs to be placed in different environments for testing, including the need to test in high pressure or negative pressure. However, the equipment currently used for withstand voltage discharge tests usually has insufficient pressure tolerance and cannot perform tests in high pressure. In addition, the existing test equipment does not have the conditions for performing positive and negative pressure tests at the same time, and cannot meet the existing test needs. In addition, the existing test closed containers are prone to leakage under the action of pressure, resulting in inaccurate test data. Therefore, there is an urgent need for a device that can perform breakdown discharge tests in different pressures to meet the test needs. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an air medium withstand voltage breakdown discharge test tank in view of the above-mentioned deficiencies in the prior art, which can perform a breakdown discharge test on the insulating material of a product under high pressure, and has good sealing performance, effectively improving the accuracy of the experimental data, and has the characteristics of wide application range and strong practicality.

[0005] The technical scheme adopted by the utility model is: an air medium withstand voltage breakdown discharge test tank, comprising a pressure tank, an opening end of the pressure tank is provided with a sealing door hinged therewith, an electric switch door assembly for closing the sealing door is provided between the sealing door and the pressure tank, a top of the pressure tank is provided with a plurality of high-voltage output terminals and a plurality of grounding output terminals corresponding to the number of the high-voltage output terminals, a connection terminal of the high-voltage output terminal and the grounding output terminal extends into the pressure tank, one side of the pressure tank is provided with an air pump connected with the interior thereof, the other side of the pressure tank is provided with a vacuum pump connected with the interior thereof, a pressure sensor is provided on the top of the pressure tank, and one side of the pressure tank is provided with a control box for controlling the operation of the entire test tank.

[0006] As a further improvement, the number of the high-voltage output terminals is six, and the high-voltage output terminals are arranged in a line at the top of the pressure tank.

[0007] Furthermore, a plurality of observation windows are provided on one side of the pressure tank, and transparent glass is provided on the observation windows.

[0008] Furthermore, a vacuum pressure gauge for detecting the negative pressure value is provided on the top of the pressure tank, and a pressure relief valve is provided on one side of the vacuum pressure gauge.

[0009] Furthermore, a connecting frame is provided between the sealing door and the pressure tank, one end of the connecting frame is rotatably connected to the pressure tank via a rotating shaft, and the other end of the connecting frame is rotatably connected to the sealing door. A plurality of clamping blocks are provided on the outer edge of the sealing door, and a clamping groove is provided at the open end of the pressure tank, and the clamping block is clamped in the clamping groove by rotation.

[0010] Furthermore, the electric switch door assembly includes a mounting frame, a drive motor, a slider, a toggle column and a connecting block. The mounting frame is arranged on one side of the pressure tank, the drive motor is installed on the top of the mounting frame, a screw rod rotatably connected to the mounting frame is provided in the mounting frame, the slider is threadedly connected to the screw rod, the toggle column is arranged on the slider, one end of the connecting block is connected to the sealing door, and the other end is provided with a slot, and the slot is plugged into the toggle column.

[0011] Furthermore, two symmetrically arranged slide rails are provided on the inner wall of the pressure tank, and a platform trolley is provided on the slide rails.

[0012] Furthermore, a support seat is provided at the bottom of the pressure tank, and a plurality of lifting rings are provided at the top of the pressure tank.

[0013] Furthermore, a deflation valve communicating with the interior of the pressure tank is provided on one side of the rear end of the pressure tank.

[0014] Beneficial Effects

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] The utility model discloses an air medium withstand pressure breakdown discharge test tank, which adopts a pressure tank as the test tank, so that it can withstand a large air pressure during the test process, thereby realizing the breakdown discharge test under different atmospheric pressures. When in use, a driving motor is first used to drive the screw to rotate, and the screw drives the slider to move the toggle column upward, thereby driving the sealing door to rotate through the connecting block, so that the sealing door can be pulled out of the card slot, thereby opening the sealing door. The sealing door is opened or closed by adopting this structure, so that the sealing performance in the pressure tank is better, gas leakage is effectively prevented, and the air pressure in the pressure tank is maintained. After opening the door, the product to be tested is placed on the platform trolley, and the platform trolley is adjusted to be placed below the high-voltage output terminal, and then different wires are used to connect the product and the high-voltage output terminal and the ground The output terminals are connected, and the sealing door is closed by the driving motor. According to the pressure requirements of the test, air is injected into the pressure tank through the air pump to make the pressure tank reach the set air pressure, start the power, and perform a discharge test on the product through the high-voltage output terminal. During the test, the air pressure in the pressure tank is controlled by the pressure sensor. After the test time reaches the set time, the gas in the pressure tank is discharged through the vent valve to complete the breakdown discharge test of the product under a certain air pressure. When a negative pressure test is required, the pressure tank can be evacuated by a vacuum pump. This device can meet the test requirements of positive and negative pressures, thereby meeting the test environment of the product. In addition, this device has good sealing performance, which is conducive to improving the accuracy of the experimental data. It is easy to use and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0018] Figure 2 It is a side perspective structural schematic diagram of the utility model;

[0019] Figure 3 It is a schematic diagram of the top view structure of the utility model;

[0020] Figure 4 It is an enlarged schematic diagram of the cross-sectional structure of the electric switch door assembly in the utility model.

[0021] Among them: 1-pressure tank, 2-electric switch door assembly, 3-sealed door, 4-high voltage output terminal, 5-rotating shaft, 6-connecting frame, 7-platform trolley, 8-slide rail, 9-block, 10-slot, 11-control box, 12-vacuum pump, 13-air release valve, 14-ground output terminal, 15-pressure sensor, 16-lifting ring, 17-vacuum pressure gauge, 18-pressure relief valve, 19-observation window, 20-support seat, 21-drive motor, 22-installation frame, 23-connecting block, 24-sliding column, 25-slider, 26-screw, 27-long slot, 28-slot, 29-air pump. DETAILED DESCRIPTION

[0022] The present invention will be further described below with reference to the specific embodiments in the accompanying drawings.

[0023] See also Figure 1-4 As shown, an air medium withstand voltage breakdown discharge test tank of the utility model comprises a pressure tank 1, a sealing door 3 hinged to the opening end of the pressure tank 1 is provided, an electric switch door assembly 2 for closing the sealing door 3 is provided between the sealing door 3 and the pressure tank 1, a plurality of high-voltage output terminals 4 and a plurality of grounding output terminals 14 corresponding to the number of the high-voltage output terminals 4 are provided at the top of the pressure tank 1, a connection terminal of the high-voltage output terminal 4 and the grounding output terminal 14 extends into the pressure tank 1, an air pump 29 connected to the inside of the pressure tank 1 is provided on one side of the pressure tank 1, a vacuum pump 12 connected to the inside of the pressure tank 1 is provided on the other side of the pressure tank 1, and a pressure sensor 1 is provided on the top of the pressure tank 1. 5. A control box 11 for controlling the operation of the entire test tank is provided on one side of the pressure tank 1. A card slot 10 is provided at the open end of the pressure tank 1. A plurality of notches corresponding to the card blocks 9 are provided on the outer edge of the card slot 10. The card blocks 9 can be inserted into the card slot 10 through the notches. Then, the sealing door 3 is rotated so that the card blocks 9 are blocked by the edges of the card slot 10, thereby locking the sealing door 3. During the test, the pressure tank 1 is used as the test tank, so that it can withstand a large air pressure during the test, thereby realizing the breakdown discharge test under different atmospheric pressures. When in use, the driving motor 21 is first used to drive the screw 26 to rotate, and the screw 26 drives the slider 25 to carry the toggle column 24 in The sealing door 3 is driven to rotate through the connecting block 23, so that the sealing door 3 can be pulled out from the card slot 10, thereby opening the sealing door 3. The sealing door 3 is opened or closed by adopting this structure, so that the sealing inside the pressure tank 1 is better, and gas leakage is effectively prevented, and the air pressure inside the pressure tank 1 is maintained. After opening the door, the product to be tested is placed on the platform trolley 7, and the platform trolley 7 is adjusted to be placed under the high-voltage output terminal 4, and then different wires are used to connect the product and the high-voltage output terminal 4 and the ground output terminal 14. After the sealing door 3 is closed by the driving motor 21, according to the pressure requirement of the test, The air pump 29 injects air into the pressure tank 1 so that the pressure in the pressure tank 1 reaches the set pressure, and then the power is turned on. The discharge test of the product is performed through the high-voltage output terminal 4. During the test, the pressure in the pressure tank 1 is controlled by the pressure sensor 15. After the test time reaches the set time, the gas in the pressure tank 1 is discharged through the vent valve 13 to complete the breakdown discharge test of the product under a certain pressure. When a negative pressure test is required, the pressure tank 1 can be evacuated through the vacuum pump 12. This device can meet the test requirements of positive and negative pressures, thereby meeting the test environment of the product. In addition, this device has good sealing performance, which is conducive to improving the accuracy of the experimental data.

[0024] Specifically, there are six high-voltage output terminals 4, which are arranged in a line at the top of the pressure tank 1. This arrangement is conducive to the operator connecting different high-voltage output terminals 4 to different positions of the product, so that the product can be tested at multiple positions at the same time, making the experimental data more accurate.

[0025] Preferably, a plurality of observation windows 19 are provided on one side of the pressure tank 1, and transparent glass is provided on the observation windows 19, so that the operator can observe the situation inside the tank at any time.

[0026] Furthermore, a vacuum pressure gauge 17 for detecting the negative pressure value is provided on the top of the pressure tank 1, and a pressure relief valve 18 is provided on one side of the vacuum pressure gauge 17. The pressure relief valve 18 serves to relieve pressure and ensure the stability of the pressure in the pressure tank 1. The vacuum pressure gauge 17 can display the pressure in the tank in real time for intuitive detection by the operator.

[0027] Furthermore, a connecting frame 6 is provided between the sealing door 3 and the pressure tank 1, one end of the connecting frame 6 is rotatably connected to the pressure tank 1 through a rotating shaft 5, and the other end of the connecting frame 6 is rotatably connected to the sealing door 3. A plurality of clamping blocks 9 are provided on the outer edge of the sealing door 3, and a clamping groove 10 is provided at the open end of the pressure tank 1. The clamping block 9 is clamped in the clamping groove 10 by rotation, so that the sealing door 3 can rotate on the connecting frame 6, thereby realizing the function of opening and closing.

[0028] Furthermore, the electric switch door assembly 2 includes a mounting frame 22, a drive motor 21, a slider 25, a toggle column 24 and a connecting block 23. The mounting frame 22 is arranged on one side of the pressure tank 1, and the drive motor 21 is installed on the top of the mounting frame 22. A screw 26 rotatably connected to the mounting frame 22 is provided inside the mounting frame 22. The slider 25 is threadedly connected to the screw 26. The toggle column 24 is arranged on the slider 25. One end of the connecting block 23 is connected to the sealing door 3, and the other end is provided with a slot 28. The slot 28 is plugged into the toggle column 24. The drive motor 21 is used to drive the screw 26 to rotate. The screw 26 drives the slider 25 to move the toggle column 24 upward under the guidance of the long groove 27, thereby driving the sealing door 3 to rotate through the connecting block 23, so that the sealing door 3 can be pulled out of the card slot 10 and clamped, thereby opening or closing the sealing door 3. The interior of the mounting frame 22 is rectangular in shape, and the slider 25 is also rectangular in shape. The slider 25 is slidably connected to the interior of the mounting frame 22.

[0029] Furthermore, two symmetrically arranged slide rails 8 are provided on the inner wall of the pressure tank 1 , and a platform trolley 7 is provided on the slide rails 8 , so that the platform trolley 7 can run smoothly on the slide rails 8 .

[0030] Furthermore, a support seat 20 is provided at the bottom of the pressure tank 1 to play a supporting role, and a plurality of lifting rings 16 are provided at the top of the pressure tank 1 to facilitate the lifting of the entire device by a crane.

[0031] Furthermore, a vent valve 13 connected to the interior of the pressure tank 1 is provided on one side of the rear end thereof. When the test time reaches a set time, the gas in the pressure tank 1 is discharged through the vent valve 13, thereby ensuring safety when opening the door.

[0032] The utility model discloses an air medium withstand voltage breakdown discharge test tank, which can perform a breakdown discharge test on the insulating material of a product under high pressure, has good sealing performance, effectively improves the accuracy of experimental data, and has the characteristics of wide application range and strong practicality.

[0033] The above is only a preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention, which will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. An air medium withstand voltage breakdown discharge test tank, characterized in that: The invention comprises a pressure tank (1), wherein an opening end of the pressure tank (1) is provided with a sealing door (3) hinged thereto, an electric switch door assembly (2) for closing the sealing door (3) is provided between the sealing door (3) and the pressure tank (1), a top end of the pressure tank (1) is provided with a plurality of high-voltage output terminals (4) and a plurality of grounding output terminals (14) corresponding to the number of the high-voltage output terminals (4), a connection terminal of each of the high-voltage output terminals (4) and the grounding output terminal (14) extends into the pressure tank (1), one side of the pressure tank (1) is provided with an air pump (29) connected to the interior thereof, the other side of the pressure tank (1) is provided with a vacuum pump (12) connected to the interior thereof, a pressure sensor (15) is provided at the top of the pressure tank (1), and one side of the pressure tank (1) is provided with a control box (11) for controlling the operation of the entire test tank.

2. The air medium withstand voltage breakdown discharge test tank according to claim 1, characterized in that: The number of the high-voltage output terminals (4) is six, and the high-voltage output terminals (4) are arranged in a line at the top of the pressure tank (1).

3. The air medium withstand voltage breakdown discharge test tank according to claim 1, characterized in that: A plurality of observation windows (19) are provided on one side of the pressure tank (1), and transparent glass is provided on the observation windows (19).

4. The air medium withstand voltage breakdown discharge test tank according to claim 1, characterized in that: The top of the pressure tank (1) is provided with a vacuum pressure gauge (17) for detecting the negative pressure value, and a pressure relief valve (18) is provided on one side of the vacuum pressure gauge (17).

5. The air medium withstand voltage breakdown discharge test tank according to claim 1, characterized in that: A connecting frame (6) is provided between the sealing door (3) and the pressure tank (1); one end of the connecting frame (6) is rotatably connected to the pressure tank (1) via a rotating shaft (5); the other end of the connecting frame (6) is rotatably connected to the sealing door (3); a plurality of clamping blocks (9) are provided on the outer edge of the sealing door (3); a clamping groove (10) is provided at the open end of the pressure tank (1); and the clamping block (9) is clamped in the clamping groove (10) by rotation.

6. The air medium withstand voltage breakdown discharge test tank according to claim 1, characterized in that: The electric switch door assembly (2) comprises a mounting frame (22), a drive motor (21), a slider (25), a toggle column (24) and a connecting block (23); the mounting frame (22) is arranged on one side of the pressure tank (1); the drive motor (21) is installed on the top of the mounting frame (22); a screw rod (26) rotatably connected to the mounting frame (22) is provided inside the mounting frame (22); the slider (25) is threadedly connected to the screw rod (26); the toggle column (24) is arranged on the slider (25); one end of the connecting block (23) is connected to the sealing door (3); the other end is provided with a slot (28); the slot (28) is plugged into the toggle column (24).

7. The air medium withstand voltage breakdown discharge test tank according to claim 1, characterized in that: Two symmetrically arranged slide rails (8) are provided on the inner wall of the pressure tank (1), and a platform trolley (7) is provided on the slide rails (8).

8. The air medium withstand voltage breakdown discharge test tank according to claim 1, characterized in that: The bottom of the pressure tank (1) is provided with a support seat (20), and the top of the pressure tank (1) is provided with a plurality of lifting rings (16).

9. The air medium withstand voltage breakdown discharge test tank according to claim 1, characterized in that: A deflation valve (13) communicating with the interior of the pressure tank (1) is provided on one side of the rear end of the pressure tank (1).

Images