CN115718053A - Particle discharge experiment platform foreign matter release device and GIL test system - Google Patents
Particle discharge experiment platform foreign matter release device and GIL test system Download PDFInfo
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- CN115718053A CN115718053A CN202211450002.1A CN202211450002A CN115718053A CN 115718053 A CN115718053 A CN 115718053A CN 202211450002 A CN202211450002 A CN 202211450002A CN 115718053 A CN115718053 A CN 115718053A
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Abstract
The invention provides a particle discharge experiment platform foreign matter release device and a GIL test system, which comprise a GIL device, an opening and closing device and an electromagnetic part, wherein the opening and closing device is arranged at the top of the inner side of the GIL device, the electromagnetic part is arranged at the top of the outer side of the GIL device, the electromagnetic part is positioned above the opening and closing device, so that the opening and closing device releases metal particles through the electromagnetic part, an external power supply of the electromagnetic part is electrically connected, the electromagnetic part is in signal connection with a remote control device, the opening and closing device comprises a first rotating plate, a second rotating plate and a rotating shaft, and the first rotating plate and the second rotating plate are in rotating connection through the rotating shaft, wherein the first rotating plate is connected with the top of the inner side wall of a pressure-resistant cylindrical cavity, and the metal particles are used for being placed on the second rotating plate.
Description
Technical Field
The invention belongs to the technical field of high-voltage transmission lines and insulation, and particularly relates to a particle discharge experiment platform foreign matter release device and a GIL (general electric field) test system.
Background
The gas insulated metal closed transmission line is a high-voltage, large-current and long-distance power transmission device with a shell and a conductor which are coaxially arranged, and high-pressure SF6, CF4, N2 or mixed clean gas is usually adopted as an insulating medium in a cavity of the gas insulated metal closed transmission line, so that the gas insulated metal closed transmission line can be used as supplement for overhead transmission and cable transmission. The advantages of large transmission capacity, small loss, no electromagnetic interference, high reliability and the like are widely used.
In the current practical application process of the GIL, there are some problems to be solved urgently, wherein the reduction of the GIL insulation strength caused by the particulate foreign matters is a main factor influencing the safe and stable operation of the system. In the production, transportation, assembly and operation processes of the GIL, particle foreign matters are inevitably generated due to the reasons of incomplete cleaning equipment, extrusion or friction of the equipment and the like; meanwhile, spark discharge which may exist in the long-time operation process can further ablate GIL parts and can generate some particulate foreign matters. According to the relevant information, the metal particle materials are mainly aluminum, iron and stainless steel, are mostly linear, spherical and powdery, and generally have small sizes, mostly in millimeter level.
At present, in the GIL, the particles are charged and move under the action of the electric field due to the high voltage applied by an external device, thereby affecting the safe and stable operation of the system. When the conventional GIL device works, metal particles are placed at one position, so that the running states of the particles near the basin-type and post insulators are not easy to see, and the research on the insulation performance and the safety stability performance of a GIL system is influenced.
Disclosure of Invention
Therefore, an object of the present invention is to provide a particle discharge experiment platform foreign matter release device and a GIL test system, which can solve the problem that when the existing GIL device works, metal particles are placed at one position, so that the operation state of the particles near the basin-type and post insulators is not easy to see, and the research on the insulation performance and the safety and stability performance of the GIL system is affected.
In order to solve the problems, the invention provides a particle discharge experiment platform foreign matter release device which comprises a GIL device, an opening and closing device and an electromagnetic piece;
the opening and closing device is arranged at the top of the inner side of the GIL device, the electromagnetic piece is arranged at the top of the outer side of the GIL device, and the electromagnetic piece is located above the opening and closing device, so that the opening and closing device releases metal particles through the electromagnetic piece, an external power supply of the electromagnetic piece is electrically connected, and the electromagnetic piece is in signal connection with the remote control device.
Optionally, the opening and closing device includes a first rotating plate, a second rotating plate and a rotating shaft, the first rotating plate and the second rotating plate are rotatably connected through the rotating shaft, wherein the first rotating plate is connected with the top of the inner side wall of the pressure-resistant cylindrical cavity, and the metal particles are used for being placed on the second rotating plate.
Optionally, the GIL device includes a housing, a conductive structure and a gas device, the conductive structure is disposed in the housing, and one end of the conductive structure extends out of the housing for connecting a voltage, the gas device is disposed at an upper end of the housing for setting a gas pressure in an inner cavity of the housing.
Optionally, the casing includes a pressure-resistant cylindrical cavity and an insulating cover plate, the insulating cover plates are disposed at two ends of the pressure-resistant cylindrical cavity, the conductive structure is disposed in an inner cavity of the pressure-resistant cylindrical cavity, and one end of the conductive structure extends out of the insulating cover plate on one side to connect to a voltage.
Optionally, the conductive structure includes a conductive rod structure and an insulating structure, the conductive rod structure is disposed in the inner cavity of the pressure-resistant cylindrical cavity, one end of the conductive rod structure extends out of the inner cavity of the pressure-resistant cylindrical cavity, and one end of the conductive structure located outside the pressure-resistant cylindrical cavity is connected to the insulating structure.
Optionally, the conducting rod structure includes guide arm main part and guide rod head, insulation system includes epoxy sleeve pipe and ya keli sleeve pipe, the guide arm main part includes first section and second section, wherein, the second section setting of guide arm main part is in withstand voltage cylindrical cavity, insulating cover plate is passed to the first section of guide arm main part, first section setting is in withstand voltage cylindrical cavity's the outside, the guide rod head is connected to the one end of first section, set up the epoxy sleeve pipe on the first section of guide arm main part, epoxy sleeve pipe's surface is provided with the ya keli sleeve pipe, wherein, the insulating cover plate that epoxy sleeve pipe and guide arm main part passed is connected.
Optionally, the inner cavity of the pressure-resistant cylindrical cavity is provided with a conductive film.
Optionally, the gas device includes an inflation valve and a barometer, the inflation valve is connected with the pressure-resistant cylindrical cavity, the inflation valve is communicated with the inner cavity of the pressure-resistant cylindrical cavity, and the barometer is arranged on the inflation valve.
Optionally, the releasing device further includes an insulator, the insulator is located in the inner cavity of the pressure-resistant cylindrical cavity, the insulator is sleeved on the outer surface of the guide rod main body, and the insulator is connected with the inner side wall of the pressure-resistant cylindrical cavity.
Another aspect of the present invention provides a GIL test system, comprising the above-mentioned particle discharge test platform foreign matter release device.
Advantageous effects
The particle discharge experiment platform foreign matter release device and the GIL experiment system provided by the embodiment of the invention have the advantages that the whole experiment process is carried out in a closed pressure-resistant cylindrical cavity, the electrode adopts a coaxial cylindrical electrode, a guide rod main body in the pressure-resistant cylindrical cavity is supported on the inner wall of the pressure-resistant cylindrical cavity through insulation, a metal cover plate at the other end (right end) is connected with the pressure-resistant cylindrical cavity to be used as a ground electrode, and further the conductive property of a metal shell of a GIL and a GIS bus is simulated. However, in the actual case of voltage operation, random factors such as vibration and the like cause the release device to generate foreign matter at certain positions during operation, and then the foreign matter starts to move. The releasing device can bear a certain degree of high air pressure while ensuring that the pressure-resistant cylindrical cavity has good air tightness, one end of a metal electromagnetic type opening and closing device is fixed on the pressure-resistant cylindrical cavity, particles are placed in the metal electromagnetic type opening and closing device, the other end of the metal electromagnetic type opening and closing device is sucked by a small electromagnet, the opening and closing are controlled by an external remote control device, the other end of the metal electromagnetic type opening and closing device is opened, metal foreign particle can naturally fall at the opening moment, and the instant situation that GIL or GIS generates particle foreign particle is simulated. The experimenter of being convenient for can be better observe the influence that the particulate foreign matter produced GIL or GIS equipment, solve current GIL's device and carry out the during operation, the metal particle is placed in a position, not only is difficult for seeing the running state of particle near basin formula and post insulator, and the influence is to the problem of the research of GIL system insulating properties and safety and stability ability.
The invention has the advantages that:
1. this foreign matter release is provided with small-size electromagnetism device that opens and shuts, its simple structure, simple to operate can be applicable to the GIL model of different proportion sizes, and through the device that opens and shuts that sets up, can release the metal particle in the position of difference, improves the research to GIL system insulation nature and the research of safety and stability ability.
2. The electromagnetic opening and closing device simulates the state process of falling of metal particles from the cavity, and correspondingly, the metal particles are generated and fall in the important process when the GIL operates, so that the device simulates the whole process of the metal particles from generation to the final movement, the release is conveniently observed at different positions, and the difficulty of the research on the GIL system is reduced.
3. The electromagnetic opening and closing device can change the installation position at will, can simulate different motion states and motion results of metal particles at different distances from the insulator and at different heights from the bottom of the cavity, and is convenient to observe and release at different positions, convenient to use and simple in structure.
Drawings
Fig. 1 is a schematic sectional view of a particle discharge experiment platform foreign matter release device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an open state of the opening and closing device according to the embodiment of the present invention;
fig. 3 is a schematic structural diagram of a closed state of the opening and closing device according to the embodiment of the invention;
FIG. 4 is a flow chart of a method of operation of an embodiment of the present invention;
fig. 5 is a schematic top view of a particle discharge experiment platform foreign matter releasing device according to an embodiment of the present invention.
The reference numbers are given as:
1. a pressure-resistant cylindrical cavity; 2. an insulating cover plate; 3. a guide rod body; 4. a guide rod head; 5. an epoxy bushing; 6. an acrylic sleeve; 7. a gas device; 70. an inflation valve; 71. a barometer; 8. an opening and closing device; 80. a first rotating plate; 81. a second rotating plate; 82. a rotating shaft; 9. an electromagnetic member; 10. an insulator.
Detailed Description
Referring to fig. 1 to 5 in combination, according to an embodiment of the present invention, a foreign object releasing device for a particle discharge experiment platform, please refer to fig. 1, the releasing device includes a GIL device, an opening and closing device 8 and an electromagnetic element 9, the GIL device includes a housing, a conductive structure, a gas device 7 and an insulator 10, the housing includes a pressure-resistant cylindrical cavity 1 and an insulating cover plate 2, the conductive rod structure includes a guide rod main body 3 and a guide rod head 4, the insulating structure includes 5 acrylic sleeves 6 of an epoxy sleeve, the gas device 7 includes an inflation valve 70 and a gas pressure gauge 71, both ends of the pressure-resistant cylindrical cavity 1 are provided with insulating cover plates 2, the guide rod main body 3 includes a first section and a second section, wherein the second section of the guide rod main body 3 is disposed in the pressure-resistant cylindrical cavity 1, the first section of the guide rod main body 3 passes through the insulating cover plate 2, the first section is disposed outside the pressure-resistant cylindrical cavity 1, one end of the first section is connected to the guide rod head 4, the epoxy sleeve 5 is disposed on the first section of the guide rod main body 3, the epoxy sleeve 5 is disposed on the outer surface of the pressure-resistant cylindrical cavity 1, the pressure-resistant cylindrical cavity 3, the electromagnetic element 9 is connected to the electromagnetic element 9, the opening and the electromagnetic element 9, the electromagnetic element 9 is disposed on the top of the pressure-resistant cylindrical cavity 1, and the electromagnetic element 9, and the electromagnetic element 9, the electromagnetic element is connected to provide power supply. The guide rod head 4 is electrically connected with an external adjustable high-voltage power supply, and the electromagnetic piece 9 is in signal connection with a remote control device. According to the invention, the conductor characteristics of the GIL are formed through the guide rod main body 3 arranged in the inner cavity of the pressure-resistant cylindrical cavity 1, the metal particles are placed on the opening and closing device 8, the guide rod head 4 is connected with an adjustable voltage power supply, the guide rod main body 3 is further communicated, the electromagnetic part 9 is electrified, the metal particles are further adsorbed, and after the electromagnetic part 9 is powered off, the metal particles are further controlled to fall down, so that the phenomenon that the GIL generates the instant motion of the metal particles is simulated, therefore, the influence of the metal particles on GIL equipment is conveniently observed, meanwhile, the metal particles can be released at different positions, the difficulty in researching the GIL system is further reduced, the phenomenon that the motion of the metal particles causes the weak insulation of an insulator is avoided, the operation of the metal particles is effectively inhibited, and the safe and stable operation performance of the GIL is further improved.
Further, the pressure-resistant cylindrical cavity 1 is a closed pressure-resistant cavity, wherein two ends of the pressure-resistant cylindrical cavity are sealed by the insulating cover plate 2, the insulating cover plate 2 is provided with a groove, and a sealing strip is arranged in the groove, so that the sealing performance of the insulating cover plate 2 and the pressure-resistant cylindrical cavity 1 is improved.
Furthermore, the insulating cover plate 2 is connected with the pressure-resistant cylindrical cavity 1 through screws, so that the connection and the disassembly are convenient.
Furthermore, the first section of the guide rod main body 3 is positioned outside the pressure-resistant cylindrical cavity 1, one end of the first section, which is far away from the insulating cover plate 2, is connected with a guide rod head 4 through threads, and the guide rod head 4 is connected with an adjustable high-voltage power supply to provide voltage for the guide rod main body 3. Wherein, threaded connection epoxy sleeve 5 on first section, the surface threaded connection ya keli sleeve 6 of epoxy sleeve 5, the effect of epoxy sleeve 5 is to guarantee that guide arm main part 3 can not creep on the insulating cover plate 2 of left end, ensures the security.
Further, the insulator 10 is located in the inner cavity of the pressure-resistant cylindrical cavity 1, the insulator 10 is sleeved on the outer surface of the guide rod main body 3, the insulator 10 is connected with the inner side wall of the pressure-resistant cylindrical cavity 1, and the insulator 10 is a basin-shaped insulator 10 which is sleeved on the guide rod main body 3 to support the guide rod main body 3.
Furthermore, a conductive film is attached to the pressure-resistant cylindrical cavity 1, so that the pressure-resistant cylindrical cavity 1 is an actual GIL cavity, and the test accuracy is improved.
Further, the guide arm main part 3 is high voltage guide arm main part, and guide rod head 4 is high voltage guide rod head, and adjustable high voltage power supply is connected to guide rod head 4, wherein, voltage type that can pass through: the voltage of the direct current, alternating current and impulse voltage is controlled by adjusting the adjustable voltage power supply.
Further, the opening and closing device 8 is fixed in the inner cavity of the pressure-resistant cylindrical cavity 1, the electromagnetic piece 9 is fixed outside the pressure-resistant cylindrical cavity 1 and is located above the opening and closing device 8, the opening and closing of the opening and closing device 8 are controlled by the electromagnetic piece 9, when the electromagnetic piece 9 is powered on, namely, the electromagnetic piece is magnetic, namely, the opening and closing device 8 is in a closed state, when the electromagnetic piece 9 is powered off, namely, when the electromagnetic piece is demagnetized, namely, the opening and closing device 8 is in an open state, namely, metal particles located on the opening and closing device 8 fall freely, the observation of the motion state of the metal particles is realized, and the influence of the metal particles on the GIL is convenient to study.
Referring to fig. 2 and 3, the opening and closing device 8 includes a first rotating plate 80, a second rotating plate 81 and a rotating shaft 82, the first rotating plate 80 and the second rotating plate 81 are rotatably connected through the rotating shaft 82, wherein the first rotating plate 80 is connected with the top of the inner side wall of the pressure-resistant cylindrical cavity 1, the metal particles are placed on the second rotating plate 81, the electromagnetic element 9 is located above the first rotating plate 80 and the rotating shaft 80, the first rotating plate 80 is fixed, and the second rotating plate 81 rotates along the rotating shaft 82, so that the metal particles are released, the structure is simple, the operation is convenient, and the release at different positions is convenient through the control of the electromagnetic element 9. Namely, the opening and closing device 8 and the pressure-resistant cylindrical cavity 1 are fixedly connected according to a preset position, and the electromagnetic piece 9 is placed at a position corresponding to the opening and closing device 8.
Furthermore, the electromagnetic part 9 is in signal connection with a remote control device, a power switch of the electromagnetic part 9 is controlled by the remote control device, whether the electromagnetic part 9 is electrified or not can be controlled remotely, electromagnetism is generated when the electromagnetic part is electrified, and the electromagnetism disappears when the electromagnetic part is powered off, so that the opening and closing of the opening and closing device 8 are controlled, and the danger caused by short-distance contact of the testing device is avoided.
Further, the first rotating plate 80 and the second rotating plate 81 are specifically shaped as square rotating plates, the first rotating plate 80 and the second rotating plate 81 are movably connected, i.e., connected through a rotating shaft 82, referring to fig. 2, the second rotating plate 81 moves the first rotating plate 80 along the rotating shaft 82 relatively, when the electromagnetic member 9 is de-energized, i.e., the electromagnetic member 9 is electromagnetically extinguished, the second rotating plate 81 rotates downward along the rotating shaft 82 by gravity, even though the metal particles placed on the second rotating plate 81 are released.
Furthermore, the first rotating plate 80 is connected with the inner side wall of the pressure-resistant cylindrical cavity 1 through screws, so that the disassembly and the assembly are convenient, the release position can be changed according to the requirements of test conditions, the release is conveniently observed at different positions, and the research difficulty of a GIL system is reduced.
Further, the first rotating plate 80 is located at the releasing position, that is, the electromagnetic member 9 is also located at the releasing position of the first rotating plate 80, because when the electromagnetic member 9 is magnetic, referring to fig. 3, the first rotating plate 80 and the second rotating plate 81 are attracted to each other. The condition when the metal particle foreign matter is produced is convenient for simulate, and the metal particle foreign matter can be placed a plurality of according to the experiment requirement, or place in different positions.
Further, the metal fine particles are nonmagnetic metal fine particles.
As another embodiment, the opening and closing device 8 further includes a first rotating plate 80, a second rotating plate 81, a first fixing member, a second fixing member, and an elastic member, the first fixing member is fixedly mounted on the first rotating plate 80, the second fixing member is fixedly mounted on the second rotating plate 81, one end of the elastic member is connected to the first fixing member, and the other end of the elastic member is connected to the second fixing member, that is, the second rotating plate 81 is opened and closed under the action of the elastic member, and the second rotating plate 81 and the first rotating plate 80 are attracted to each other by the power of the electromagnetic member 9.
Further, the elastic member is a spring.
The gas device 7 comprises an inflation valve 70 and a barometer 71, the inflation valve 70 is connected with the pressure-resistant cylindrical cavity 1, the inflation valve 70 is communicated with the inner cavity of the pressure-resistant cylindrical cavity 1, and the barometer 71 is arranged on the inflation valve 70. The inflation valve 70 is convenient for discharging air inside the pressure-resistant cylindrical cavity 1 and simultaneously convenient for charging insulating gas into the pressure-resistant cylindrical cavity 1, when the inflation valve 70 is opened to be connected with an insulating gas tank, the insulating gas is flushed into the pressure-resistant cylindrical cavity 1, and when the inflation valve 70 is opened, the internal air is discharged to the outside through the inflation valve 70, so that the use and the operation are convenient.
Further, the types of the inflation valve 70 and the air pressure gauge 71 are selected according to actual use. The inflation valve 70 is connected with the air pressure gauge 71 through screw threads, and the inflation valve 70 is communicated with the pressure-resistant cylindrical chamber 1 and is connected with the pressure-resistant cylindrical chamber through screw threads. The air charging valve 70 can be connected with an external device for vacuumizing and charging and discharging insulating gas according to the requirement of an experiment. The indication of the air pressure can be observed in real time by the air pressure gauge 71.
The whole test process is carried out in a closed pressure-resistant cylindrical cavity 1, a guide rod main body 3 in the pressure-resistant cylindrical cavity 1 is supported by an insulator 10 and is arranged on the inner wall of the pressure-resistant cylindrical cavity 1, a guide rod head 4 is used as an electrode, the pressure-resistant cylindrical cavity 1 is connected as a ground electrode, and the conductive characteristics of GIL and GIS bus metal shells are simulated. However, in practice, under voltage operating conditions, random factors such as vibration and the like cause the release device to generate foreign matter at certain locations under operating conditions, and the foreign matter then begins to move. The release device can bear a certain degree of high air pressure while ensuring that the air tightness of the pressure-resistant cylindrical cavity 1 is good, one end of a metal electromagnetic type opening and closing device 8 is fixed on the pressure-resistant cylindrical cavity 1, particles are placed in the metal electromagnetic type opening and closing device 8, the other end of the metal electromagnetic type opening and closing device 8 is sucked by a small electromagnetic piece 9, the opening and the closing are controlled by an external remote control device, the other end of the metal electromagnetic type opening and closing device 8 is opened, metal foreign particle can naturally fall at the opening moment, and the instant situation of particle foreign particle generation of GIL or GIS equipment is simulated. The experimenter of being convenient for can be better observe the influence that the particulate foreign matter produced GIL or GIS equipment, solve current GIL's device and carry out the during operation, be difficult for seeing the particulate at basin formula and near the running state of post insulator, and then cause GIL system insulating properties and the problem that the safety and stability performance reduces.
Another aspect of the present invention provides a GIL test system, which includes the above-mentioned particle discharge experiment platform foreign matter release device.
Referring to fig. 4, a working method of a particle discharge experiment platform foreign matter release device includes the following steps:
1. checking whether each part of the releasing device and the opening and closing device 8 are intact, assembling the releasing device, checking whether the air tightness and the electrical conductivity of the pressure-resistant cylindrical cavity 1 meet experimental conditions after the assembling, and fixing the opening and closing device 8 in the inner cavity of the pressure-resistant cylindrical cavity 1 and at a position required by the experimental conditions;
further, whether each spare part in the inspection release is intact usable, to the testing of opening and closing device 8, whether can be sensitive release metal particle, assemble withstand voltage cylinder cavity 1 simultaneously, pass one of them metal covering plate 2 with the first section of guide arm main part 3, then be connected this metal covering plate 2 and withstand voltage cylinder cavity 1's one end, simultaneously with epoxy sleeve 5 cover on the first section, and epoxy sleeve 5 and this metal covering plate 2's lateral wall fixed connection, cup joint ya keli sleeve 6 in epoxy sleeve 5's outer end, and the one end threaded connection guide rod head 4 of keeping away from metal covering plate 2 at the first section. And sleeving the insulator on the second section, fixedly connecting the insulator with the side wall of the pressure-resistant cylindrical cavity 1, installing an opening and closing device for testing at the upper end of the inner side wall of the pressure-resistant cylindrical cavity 1, installing an electromagnetic part 9 at the outer side wall of the pressure-resistant cylindrical cavity 1 and positioned at the upper end of the opening and closing device 8, and connecting the other metal cover plate 2 with the other end of the pressure-resistant cylindrical cavity 1 for sealing.
2. Based on the requirement of experimental conditions, communicating a vacuum pump with an inflation valve 70, pumping out air in a pressure-resistant cylindrical cavity 1 of a vacuum pump release device, observing a barometer 71, closing the inflation valve 70 when the gauge pressure of the barometer 71 is-0.1 MPa, stopping pumping, connecting a pipe of an insulating gas tank to the inflation valve 70, filling insulating gas into the pressure-resistant cylindrical cavity 1, closing the inflation valve 70 after the pressure required by the test is reached, and standing to ensure that the insulating gas is uniformly distributed in the pressure-resistant cylindrical cavity 1;
further, after the assembly based on the first step, the opening and closing devices 8 are all placed at positions meeting experimental conditions, are communicated with the inflation valve 70 through an external vacuum pump, pump out air of the pressure-resistant cylindrical cavity 1, and then are filled with insulating gas to the inside, so that a test environment is provided for the test.
3. The power supply of the electromagnetic part 9 is turned off by a remote control device, when the electromagnetic part 9 is demagnetized, the second rotating plate 81 in the opening and closing device 8 takes the rotating shaft 82 as a rotating center, and the second rotating plate 81 is opened, so that the metal particles are released to a test position;
furthermore, the experimental position is selected and placed according to the experimental requirement, and is selected according to the actual situation.
4. An adjustable high voltage power supply is connected to the guide rod head 4, the voltage is slowly increased, the test state of the metal particles is observed, and the test data is recorded.
Further, when the voltage is slowly increased, whether the metal particles jump, the motion state after the jump, and the position of the attachment are observed, and the jump-off voltage is recorded.
5. The supply voltage was reduced until it was 0 and then the discharge device was discharged, completing the test.
Furthermore, discharge is carried out, so that the safety is improved, and the danger is avoided.
The whole working method can ensure the good operation of the test device, completely simulate the generation process, the movement and the process of the metal particles in the experimental process, is simple and convenient to realize the expected result of the test, and can ensure the safety of the test personnel to the maximum extent under the working method.
1. This foreign matter release is provided with small-size electromagnetism device that opens and shuts, its simple structure, simple to operate can be applicable to the GIL model of different proportion sizes, and through the device that opens and shuts that sets up, can release the metal particle in the position of difference, improves the research to GIL system insulation nature and the research of safety and stability ability.
2. The electromagnetic opening and closing device simulates the state process of falling of metal particles from the cavity, and correspondingly, the metal particles are generated and fall in the important process when the GIL operates, so that the device simulates the whole process of the metal particles from generation to the final movement, the release is conveniently observed at different positions, and the difficulty of the research on the GIL system is reduced.
3. The electromagnetic opening and closing device can change the installation position at will, can simulate different motion states and motion results of metal particles at different distances from the insulator and at different heights from the bottom of the cavity, and is convenient to observe and release at different positions, convenient to use and simple in structure.
4. An epoxy sleeve with the thickness of 5mm is sleeved between the guide rod main body and the left side cover plate, so that the high-voltage guide rod can be effectively prevented from creeping upwards along the cover plate.
5. The guide rod main part and the guide rod head are in threaded connection, and the lead is screwed on the threads and is clamped by the guide rod main part and the guide rod head during wiring, so that the connection mode is more compact and safer compared with other connection modes.
It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.
Claims (10)
1. A foreign matter release device of a particle discharge experiment platform is characterized by comprising a GIL device, an opening and closing device (8) and an electromagnetic piece (9);
the opening and closing device (8) is arranged at the top of the inner side of the GIL device, the electromagnetic piece (9) is arranged at the top of the outer side of the GIL device, the electromagnetic piece (9) is located above the opening and closing device (8), so that the opening and closing device (8) releases metal particles through the electromagnetic piece (9), the electromagnetic piece (9) is electrically connected with an external power supply, and the electromagnetic piece (9) is in signal connection with the remote control device.
2. The particle discharge experiment platform foreign matter release device according to claim 1, characterized in that the opening and closing device (8) comprises a first rotating plate (80), a second rotating plate (81) and a rotating shaft (82), the first rotating plate (80) and the second rotating plate (81) are rotatably connected through the rotating shaft (82), wherein the first rotating plate (80) is connected with the top of the inner side wall of the pressure-resistant cylindrical cavity (1), and the metal particles are used for being placed on the second rotating plate (81).
3. The particle discharge experiment platform foreign matter release device as recited in claim 1, wherein the GIL device comprises a housing, a conductive structure and a gas device (7), the conductive structure is arranged in the housing, one end of the conductive structure extends out of the outer side of the housing for connecting a voltage, and the gas device (7) is arranged at the upper end of the outer side of the housing for setting the gas pressure of the inner cavity of the housing.
4. The foreign matter release device of the particle discharge experiment platform as claimed in claim 3, characterized in that the housing comprises a pressure-resistant cylindrical cavity (1) and an insulating cover plate (2), the insulating cover plate (2) is disposed at both ends of the pressure-resistant cylindrical cavity (1), the conductive structure is disposed in the inner cavity of the pressure-resistant cylindrical cavity (1), and one end of the conductive structure extends out of the insulating cover plate (2) at one side for connecting voltage.
5. The foreign matter release device of particle discharge experiment platform as claimed in claim 4, wherein the conductive structure comprises a conductive rod structure and an insulating structure, the conductive rod structure is disposed in the inner cavity of the pressure-resistant cylindrical cavity (1), one end of the conductive rod structure extends out of the inner cavity of the pressure-resistant cylindrical cavity (1), and one end of the conductive structure located outside the pressure-resistant cylindrical cavity (1) is connected with the insulating structure.
6. The foreign matter release device of particle discharge experiment platform of claim 5, wherein the conductive rod structure comprises a guide rod main body (3) and a guide rod head (4), the insulation structure comprises an epoxy sleeve (5) and an acrylic sleeve (6), the guide rod main body (3) comprises a first section and a second section, wherein the second section of the guide rod main body (3) is arranged in the pressure-resistant cylindrical cavity (1), the first section of the guide rod main body (3) passes through the insulation cover plate (2), the first section is arranged outside the pressure-resistant cylindrical cavity (1), one end of the first section is connected with the guide rod head (4), the epoxy sleeve (5) is arranged on the first section of the guide rod main body (3), the acrylic sleeve (6) is arranged on the outer surface of the epoxy sleeve (5), and the epoxy sleeve (5) is connected with the insulation cover plate (2) through which the guide rod main body (3) passes.
7. The foreign matter release device of particle discharge experiment platform as claimed in claim 4, characterized in that the inner cavity of the pressure-resistant cylindrical cavity (1) is provided with a conductive film.
8. The foreign matter release device of the particle discharge experiment platform as recited in claim 3, wherein the gas device (7) comprises an inflation valve (70) and a barometer (71), the inflation valve (70) is connected with the pressure-resistant cylindrical chamber (1), the inflation valve (70) is communicated with the inner cavity of the pressure-resistant cylindrical chamber (1), and the barometer (71) is disposed on the inflation valve (70).
9. The foreign matter release device of particle discharge experiment platform as claimed in claim 1, wherein the release device further comprises an insulator (10), the insulator (10) is located in the inner cavity of the pressure-resistant cylindrical cavity (1), the insulator (10) is sleeved on the outer surface of the guide rod main body (3), and the insulator (10) is connected with the inner side wall of the pressure-resistant cylindrical cavity (1).
10. A GIL test system comprising the particle discharge experiment platform foreign matter release apparatus of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211450002.1A CN115718053B (en) | 2022-11-19 | 2022-11-19 | Particle discharge experiment platform foreign matter release device and GIL test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211450002.1A CN115718053B (en) | 2022-11-19 | 2022-11-19 | Particle discharge experiment platform foreign matter release device and GIL test system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115718053A true CN115718053A (en) | 2023-02-28 |
| CN115718053B CN115718053B (en) | 2023-07-04 |
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| CN115718053B (en) | 2023-07-04 |
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