Insulator high-voltage direct-current simulation test device

Abstract

The insulator high-voltage direct-current simulation test device comprises a charge detection assembly and a high-voltage generation assembly, and further comprises an insulating shell, an oil path conductor, an insulator fixing assembly and an oil circulation assembly. The oil path conductor is fixed in the insulating shell, one end of the oil path conductor is connected with the high-voltage generating assembly, and the other end of the oil path conductor is provided with a spherical shielding cover; the charge detection assembly is arranged at one end of the oil path conductor; the oil circulation assembly is used for providing recyclable thermal insulation oil liquid for the interior of the oil way conductor. A flexible fixing mechanism is designed at the mounting part of the insulator, and the fixing mechanism is inflated by high-pressure protective gas filled during working, so that the insulating flexible ring is expanded to be in tight contact with the insulator, the insulator is further effectively fixed, and the accuracy of a detection result is ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to insulator electric charge test equipment technical field, concretely relates to insulator high -voltage direct current simulation test device. BACKGROUND

[0002] The surface charge distribution of insulator under high-voltage and large current is an important link to verify the quality of insulator, and the existing test method is generally to install insulator on conductor, and then pass high-voltage and large current direct current, which has the following disadvantages: when fixing insulator, generally, insulator is placed at the end of insulating shell, and then the other half insulating shell is installed, and the screw is tightened from the outside, since the volume of insulator is large, and there is production tolerance, and the fixing of insulator cannot be completely guaranteed, and if there is slight vibration during detection, the accuracy of detection result will be influenced.

[0003] If the fixing device is arranged in the insulating shell, the fixing device needs to be manually fastened one by one, and manual long-time operation can bring metal particles into the test device, and also can influence the accuracy of detection result.

[0004] Therefore, it is urgent to design a high-voltage direct current simulation test device capable of quickly and stably installing insulator. UTILITY MODEL CONTENTS

[0005] In view of the above technical problems, the utility model provides a kind of insulator high -voltage direct current simulation test device.

[0006] The technical scheme of the utility model is: insulator high -voltage direct current simulation test device, including charge detection component and high -voltage generating component, further including insulating shell, oil circuit conductor, insulator fixing assembly and oil circulation component;

[0007] The oil circuit conductor is fixed in the insulating shell, one end of the oil circuit conductor is connected with the high -voltage generating component, and the other end of the oil circuit conductor is provided with a spherical shield cover;The charge detection component is arranged at one end of the oil circuit conductor;

[0008] The oil circulation component is used to provide circulatable heat insulating oil liquid in the oil circuit conductor;

[0009] The insulating shell includes first shell body and second shell body, the first shell body and second shell body are detachably connected, the first shell body is provided with first fixed groove on the end face of second shell body, and the second shell body is provided with second fixed groove on the end face of first shell body;

[0010] The insulator fixing assembly comprises a one-way air valve, a constant pressure air release valve and an insulating flexible ring, the first fixing groove end face is provided with a mounting groove, the insulating flexible ring is arranged in the mounting groove, the mounting groove side wall is provided with a first mounting hole and a second mounting hole, the one-way air valve and the constant pressure air release valve are arranged in the first mounting hole and the second mounting hole respectively, and the one-way air valve and the constant pressure air release valve are connected with the insulating flexible ring.

[0011] In the working state, the insulating shell is filled with protection gas higher than the standard atmospheric pressure.

[0012] Preferably, the oil circulating assembly comprises insulating oil, an oil inlet pipe, an oil outlet pipe and an oil heater, the insulating oil is arranged in the oil heater, one end of the oil inlet pipe is connected with the oil heater, the other end is inserted into one side of the insulating shell and then inserted into the oil path conductor, and then the oil inlet pipe is bent and extended to the installation position corresponding to the insulator.

[0013] One end of the oil outlet pipe is arranged in the oil path conductor, the other end of the oil outlet pipe penetrates out of the oil path conductor and then penetrates out of the insulating shell, and finally the other end of the oil outlet pipe is connected with the oil heater.

[0014] Preferably, a flat shielding cover is arranged at the position where the inner wall of the insulating shell and the oil inlet pipe meet, and a flat shielding cover is arranged at the position where the outer wall of the oil path conductor and the oil inlet pipe meet.

[0015] A flat shielding cover is arranged at the position where the inner wall of the insulating shell and the oil outlet pipe meet, and a flat shielding cover is arranged at the position where the outer wall of the oil path conductor and the oil outlet pipe meet.

[0016] Preferably, a plurality of particle traps are arranged in the insulating shell.

[0017] Preferably, the oil inlet pipe and the oil outlet pipe are arranged on part of the outer surface of the insulating shell and are covered with thermal insulation cotton.

[0018] Preferably, the outer end of the first mounting hole is in a trumpet shape.

[0019] Preferably, the oil path conductor is fixed in the insulating shell through a plurality of fixing supports.

[0020] The utility model discloses a flexible fixing mechanism is designed at the installation position of the insulator, the high pressure protection gas filled in working is used to charge the fixing mechanism, makes the insulating flexible ring rise and contact closely with the insulator, and the insulator is effectively fixed in turn, guarantees the accurate detection result. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the structure schematic diagram of the utility model,

[0022] Figure 2 It is Figure 1 It is the partial close -up of A,

[0023] Figure 3 is Figure 1 is a partial enlarged view of B in the middle,

[0024] Figure 4 is a structural schematic view of the first shell and the second shell,

[0025] 1 is a charge detection assembly, 2 is a high voltage generation assembly, 3 is an insulation shell, 31 is a first shell, 311 is a first fixing groove, 312 is a mounting groove, 3121 is a first mounting hole, 3122 is a second mounting hole, 32 is a second shell, 321 is a second fixing groove, 4 is an oil path conductor, 41 is a spherical shield, 42 is a fixed support, 5 is an insulator fixing assembly, 51 is a one-way air valve, 52 is a constant pressure air release valve, 53 is an insulating flexible ring, 6 is an oil circulation assembly, 61 is an oil inlet pipe, 62 is an oil outlet pipe, 7 is a particle trap, 8 is a flat shield, 9 is an insulator;

[0026] The arrow is the oil circulation direction. DETAILED DESCRIPTION

[0027] The technical scheme of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0028] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "vertical", "horizontal", "inner", "outer", "front", "back", and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0029] Figures 1 to 4 The present application is an insulator high voltage DC simulation test device, comprising a charge detection assembly 1 and a high voltage generation assembly 2, the charge detection assembly 1 and the high voltage generation assembly 2 are both conventional equipment, and the specific principle and use method will not be described again, further comprising an insulation shell 3, an oil path conductor 4, an insulator fixing assembly 5 and an oil circulation assembly 6;

[0030] The oil circuit conductor 4 is fixed in the insulating shell 3 by several fixed supports 42, one end of the oil circuit conductor 4 is connected with the high-voltage generating assembly 2, and the other end of the oil circuit conductor 4 is provided with a spherical shielding cover 41; the electric charge detecting assembly 1 is arranged at one end of the oil circuit conductor 4;

[0031] The oil circulating assembly 6 is used for providing the inside of the oil circuit conductor 4 with circulating heat insulation oil;

[0032] The oil circulating assembly 6 comprises insulating oil, an oil inlet pipe 61, an oil outlet pipe 62 and an oil heater (not shown in the figure), the insulating oil is arranged in the oil heater, the oil heater is used for providing circulating hot oil and is a conventional device, and the specific structure and working principle will not be described here. One end of the oil inlet pipe 61 is connected with the oil heater, the other end of the oil inlet pipe 61 is inserted into one side of the insulating shell 3 and then inserted into the oil circuit conductor 4, and then the oil inlet pipe 61 extends to the corresponding installation position of the insulator 9 after bending.

[0033] One end of the oil outlet pipe 62 is arranged in the oil circuit conductor 4, the other end of the oil outlet pipe 62 penetrates out of the oil circuit conductor 4, then penetrates out of the insulating shell 3, and finally is connected with the oil heater.

[0034] Referring to Figures 2 to 4 The insulating shell 3 comprises a first shell 31 and a second shell 32, the first shell 31 and the second shell 32 are detachably connected, the first shell 31 is provided with a first fixing groove 311 on the end face connected with the second shell 32, and the second shell 32 is provided with a second fixing groove 321 on the end face connected with the first shell 31.

[0035] The insulator fixing assembly 5 comprises a one-way air valve 51, a constant-pressure air release valve 52 and an insulating flexible ring 53, the first fixing groove 311 is provided with a mounting groove 312 at one end, the insulating flexible ring 53 is arranged in the mounting groove 312, the side wall of the mounting groove 312 is provided with a first mounting hole 3121 and a second mounting hole 3122, the one-way air valve 51 and the constant-pressure air release valve 52 are arranged in the first mounting hole 3121 and the second mounting hole 3122 respectively, and the one-way air valve 51 and the constant-pressure air release valve 52 are connected with the insulating flexible ring 53. The one-way air valve 51 is used for filling protection gas to make the insulating flexible ring 53 expand, the constant-pressure air release valve 52 is used for releasing air after the test is completed and preventing the insulating flexible ring 53 from being damaged due to excessive pressure, and the one-way air valve 51 and the constant-pressure air release valve 52 are conventional components, and the specific structure and mounting mode will not be described here.

[0036] In the working state, the insulating shell 3 is filled with protection gas higher than the standard atmospheric pressure. The protection gas is generally nitrogen or sf6.

[0037] In the embodiment, the flat shielding cover 8 is arranged at the position where the inner wall of the insulating shell 3 is connected with the oil inlet pipe 61, and the flat shielding cover 8 is arranged at the position where the outer wall of the oil circuit conductor 4 is connected with the oil inlet pipe 61.

[0038] The inner wall of the insulating shell 3 is provided with a flat shielding cover 8 at the joint with the oil outlet pipe 62, and the outer wall of the oil circuit conductor 4 is provided with a flat shielding cover 8 at the joint with the oil outlet pipe 62.

[0039] In the embodiment, a particle catcher 7 is arranged in the insulating shell 3.

[0040] The oil inlet pipe 61 and the oil outlet pipe 62 are arranged on the outer surface of the insulating shell 3 and are provided with heat insulation cotton, so as to ensure the accuracy of the temperature of the oil in the oil circuit conductor 4.

[0041] In the embodiment, the outer end of the first mounting hole 3121 is in a trumpet shape, so as to facilitate the filling of protective gas into the insulating flexible ring 53.

[0042] Working method: before each experiment, the insulator 9 is sleeved on the oil circuit conductor, the edge of the insulator 9 is abutted against the first fixing groove 311, then the first shell 31 and the second shell 32 are connected and fixed by bolts, the protective gas is filled into the insulating shell 3, the protective gas enters the insulating flexible ring 53 through the one-way air valve 51, under the pressure of the protective gas, the insulating flexible ring 53 expands to fill the gap, and the insulator 9 is effectively fixed; then the high-voltage power supply is started through the power supply device 2, after a period of time, a certain amount of surface charge is accumulated on the surface of the insulator 9, after the high-voltage is turned off, the charge detection device 3 is started to detect the charge distribution on the insulator 7 at different temperatures. Based on the actual product structure design verification device, the actual working condition can be simulated, and more accurate data can be obtained; the heat oil circulating assembly can uniformly and stably control the temperature.

[0043] The utility model is not limited to the above embodiment, on the basis of the technical scheme disclosed in the utility model, the skilled in the art can make some substitutions and deformation to some technical features according to the disclosed technical content without creative labor, and these substitutions and deformation are all within the protection scope of the utility model.

Claims

1. A high voltage DC simulation test device for insulators, comprising a charge detection assembly and a high voltage generation assembly, characterized in that, It also includes an insulating shell, an oil path conductor, an insulator fixing assembly and an oil circulation assembly; The oil path conductor is fixed in the insulating shell, one end of the oil path conductor is connected with the high-voltage generating assembly, and the other end of the oil path conductor is provided with a spherical shielding cover; the charge detection assembly is arranged at one end of the oil path conductor; The oil circulation assembly is used to provide circulating heat insulation oil in the oil path conductor; The insulating shell includes a first shell and a second shell, the first shell and the second shell are detachably connected, the first shell is provided with a first fixing groove on an end face connected with the second shell, and the second shell is provided with a second fixing groove on an end face connected with the first shell; The insulator fixing assembly includes a one-way air valve, a constant pressure air release valve and an insulating flexible ring, the first fixing groove is provided with a mounting groove, the insulating flexible ring is arranged in the mounting groove, the side wall of the mounting groove is provided with a first mounting hole and a second mounting hole, the one-way air valve and the constant pressure air release valve are arranged in the first mounting hole and the second mounting hole respectively, and the one-way air valve and the constant pressure air release valve are connected with the insulating flexible ring; In the working state, the insulating shell is filled with protective gas higher than the standard atmospheric pressure.

2. The insulator high voltage DC simulation test device according to claim 1, characterized in that, The oil circulation assembly includes insulating oil, an oil inlet pipe, an oil outlet pipe and an oil heater, the insulating oil is arranged in the oil heater, one end of the oil inlet pipe is connected with the oil heater, the other end of the oil inlet pipe is inserted into one side of the insulating shell and then inserted into the oil path conductor, and then the oil inlet pipe is bent and extended to the installation position corresponding to the insulator; One end of the oil outlet pipe is arranged in the oil path conductor, the other end of the oil outlet pipe penetrates out of the oil path conductor and then penetrates out of the insulating shell, and finally the other end of the oil outlet pipe is connected with the oil heater.

3. The high voltage DC analog test device for insulators according to claim 2, characterized in that, The inner wall of the insulating shell is provided with a flat shielding cover at the position connected with the oil inlet pipe, and the outer wall of the oil path conductor is provided with a flat shielding cover at the position connected with the oil inlet pipe; The inner wall of the insulating shell is provided with a flat shielding cover at the position connected with the oil outlet pipe, and the outer wall of the oil path conductor is provided with a flat shielding cover at the position connected with the oil outlet pipe.

4. The insulator high voltage DC simulation test device according to claim 1, characterized in that, The insulating shell is provided with a plurality of particle traps.

5. The insulator high voltage DC simulation test device according to claim 2, characterized in that, The outer surface of the insulating shell is provided with heat preservation cotton.

6. The insulator high voltage DC simulation test device according to claim 1, characterized in that, The outer end of the first mounting hole is in a horn shape.

7. The insulator high voltage DC simulation test device according to claim 1, characterized in that, The oil path conductor is fixed in the insulating shell through a plurality of fixing supports.

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