CN209961811U

CN209961811U - Marx generator capable of improving running stability of device

Info

Publication number: CN209961811U
Application number: CN201920688923.9U
Authority: CN
Inventors: 吴刚; 税荣杰; 陈学秒; 王桂吉; 马骁; 胥超
Original assignee: Institute of Fluid Physics of CAEP
Current assignee: Institute of Fluid Physics of CAEP
Priority date: 2019-05-14
Filing date: 2019-05-14
Publication date: 2020-01-17
Anticipated expiration: 2029-05-14

Abstract

The utility model discloses a can improve device operating stability's Marx generator, including inside cavity and top open-ended shielding section of thick bamboo, shielding section of thick bamboo's open end is provided with the apron, be provided with a plurality of monopole module and output electrode board in shielding section of thick bamboo's the inner chamber, monopole module all is vertically to connect gradually along shielding section of thick bamboo's inner chamber, output electrode board is located between monopole module and the apron, the monopole module and the shielding section of thick bamboo inner chamber bottom of below are connected, the monopole module and the output electrode board of the top are connected, be connected with the cable on the output electrode board, cable one end is located shielding section of thick bamboo outside after passing the apron. The utility model discloses a multistage Marx module is favorable to reducing charging voltage, and the device operation is more stable, can prevent that test equipment from damaging, through transmission cable and energy storage module's accordant connection for the transmission efficiency maximize, owing to be the multiple-stage connection, only need change it when one of them part damages, do not influence holistic use, generator use cost reduces like this.

Description

Marx generator capable of improving running stability of device

Technical Field

The utility model relates to a pulse power science and technical field, concretely relates to can improve device operating stability's Marx generator.

Background

The Marx generator is a high-voltage device which generates high-voltage pulse through a low-voltage direct-current power supply, is charged in parallel through a capacitor and then is discharged in series, and can simulate the processes of lightning, overvoltage operation and the like. Therefore, the method is often used in high-energy physical tests such as insulation impact voltage resistance, dielectric impact breakdown, discharge and the like. For example, the effects of lightning on power line gears and aerospace equipment are simulated.

The existing Marx generator is complex in structure, a single-pole arrangement mode is adopted, the charging voltage of the arrangement mode is high, the device is unstable in operation, and equipment is damaged easily during testing.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that current Marx generator adopts the monopole mode of arranging, and this kind of mode of arranging is unstable when the electric current passes through, and charging voltage is high, and the device operation is unstable, causes the equipment damage when experimental easily, and its aim at provides a Marx generator that can improve device operating stability, and this Marx generator adopts multistage Marx module, is favorable to reducing charging voltage, and the device operation is more stable, can prevent that test equipment from damaging.

The utility model discloses a following technical scheme realizes: can improve device operating stability's Marx generator, including inside cavity and top open-ended shielding section of thick bamboo, the open end of shielding section of thick bamboo is provided with the apron, is provided with a plurality of monopole module and an output electrode board in the inner chamber of shielding section of thick bamboo, and the monopole module all is vertically to connect gradually along the inner chamber of shielding section of thick bamboo, and the output electrode board is located between monopole module and the apron, and the monopole module and the shielding section of thick bamboo inner chamber bottom of below are connected, and the monopole module and the output electrode board of the top are connected, are connected with the cable on the output electrode board, and the one end of cable is located the shielding section. The existing Marx generator on the market basically adopts a single-pole arrangement mode, the arrangement mode is often used in high-energy physical tests such as insulation impact voltage resistance, dielectric impact breakdown, discharge and the like, but a low-voltage direct-current power supply generates high-voltage pulses, and the high-voltage pulses are charged in parallel through a capacitor and then discharged in series, the arrangement mode has high charging voltage, the device is unstable in operation and easily causes equipment damage during the test, and once a certain part in the generator is damaged, the whole generator can only be scrapped, so that the use cost is increased. The transmission efficiency is maximized, the rapidity and the stability of operation are further ensured, meanwhile, due to the multi-stage connection, when one part is damaged, the part is only required to be correspondingly replaced, the integral scrapping of the generator is avoided, and the use cost of the generator is reduced.

Further, the monopole module all includes two condensers and a switch, and the switch setting in same monopole module is connected with two condensers simultaneously between the condenser, and the condenser of below and shielding section of thick bamboo inner chamber bottom are connected in the condenser, and the condenser and the output electrode board of top are connected, constitute a monopole module through switch and two condensers, and when the operation, every monopole module carries out once corresponding charging voltage and reduces, can wholly reduce charging voltage after the series connection uses to make the operation stable.

The switches are connected with the capacitors through electrodes, each switch is provided with an upper electrode and a lower electrode, the upper electrodes are connected with the upper parts of the switches, the lower electrodes are connected with the lower parts of the switches, the upper electrodes on the upper parts of the switches are connected with the capacitors close to the upper parts of the switches, and the lower electrodes on the lower parts of the switches are connected with the capacitors close to the lower parts of the switches, so that the current transmission is realized.

The upper electrode on the upper part of the switch is charged with positive high voltage, the lower electrode on the lower part of the switch is charged with negative high voltage, and in order to ensure that the fixation is firmer, the upper electrode or the lower electrode of the switch is connected with the electrode of the capacitor close to the upper electrode or the lower electrode of the switch through a screw.

In order to fix the opening of the shielding cylinder, the cover plate is fixed to the opening end of the shielding cylinder and can completely cover the opening end, and the shielding cylinder is preferably cylindrical. The capacitor is thus mounted internally.

The cable quantity is many, and every cable all includes inner core and outer core, and wherein the inner core is located outer core inside, and the one end of outer core all is connected with the apron, and the other end is located a shielding section of thick bamboo outside, and the one end of inner core is passed the apron and is connected with output electrode board, and the other end also is located a shielding section of thick bamboo outside, can match the transmission like this for transmission efficiency maximize.

Compared with the prior art, the utility model, following advantage and beneficial effect have: the utility model discloses a multistage Marx module is favorable to reducing charging voltage, and the device operation is more stable, can prevent that test equipment from damaging, simultaneously through transmission cable and energy storage module's accordant connection for the transmission efficiency maximize, simultaneously owing to be the multi-stage connection, only need correspond when one of them part damages to change it, can not cause the generator whole to scrap, generator use cost reduces like this.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:

fig. 1 is a schematic structural diagram of the present invention.

Reference numbers and corresponding part names in the drawings:

1-cable, 2-cover plate, 3-output electrode plate, 4-shielding cylinder, 5-switch, 6-capacitor and 7-connecting piece.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.

Examples

As shown in fig. 1, the Marx generator capable of improving the operation stability of the device comprises a shielding cylinder 4 with a hollow interior and an open top, the shielding cylinder 4 is designed in a cylindrical structure, 200 monopole modules and an output electrode plate 3 are arranged in the inner cavity of the shielding cylinder 4, the monopole modules are sequentially connected along the inner cavity of the shielding cylinder 4 in the longitudinal direction, namely along the axis of the shielding cylinder 4, each monopole module is a Marx module, each monopole module comprises two capacitors 6 with 50kV/600nF connected with a gas switch 5, the impedance is about 2.5 ohms, the monopole modules are connected by adopting the composition mode of the capacitors 6-5-6, the switch 5 in the same monopole module is arranged between the capacitors 6 and is simultaneously connected with the two capacitors 6, and the output electrode plate 3 is arranged in the shielding cylinder 4 and is close to the opening, be located all monopole modules top, be provided with apron 2 at the open end of shielding section of thick bamboo 4, apron 2 is fixed and can cover the open end completely with the open end of shielding section of thick bamboo 4, output electrode board 3 is connected with apron 2 through adapting unit, all be provided with upper electrode and bottom electrode on every condenser 6, the upper electrode is located condenser 6 top surface, the bottom electrode is located the bottom surface of condenser 6, wherein the condenser 6 of top is connected with output electrode board 3 through the upper electrode in condenser 6, condenser 6 of bottommost passes through the bottom electrode and is connected with 4 inner chamber bottoms of shielding section of thick bamboo, adjacent monopole module constitutes connection piece 7 through the upper electrode and the bottom electrode of condenser 6 that are close to each other and connects, guarantee circular telegram efficiency. The upper electrode at the upper part of the switch 5 is charged with positive high voltage, the lower electrode at the lower part of the switch 5 is charged with negative high voltage, and in order to ensure the stability of connection, the upper electrode or the lower electrode of the switch 5 is connected with the electrode of the capacitor 6 close to the upper electrode or the lower electrode through a screw. Four 10-ohm low-impedance transmission cables 1 are connected to the output electrode plate 3, each cable 1 comprises an inner core and an outer core, the inner core is located inside the outer core, one end of the outer core is connected with the cover plate 2, the other end of the outer core is located outside the shielding cylinder 4, one end of the inner core penetrates through the cover plate 2 and then is connected with the output electrode plate 3, and the other end of the inner core is located outside the shielding cylinder 4. 200 modules are through 800 low impedance transmission cable transmissions, adopt the utility model discloses a Marx generator is favorable to reducing charging voltage owing to be multistage Marx module connection, and the device operation is more stable, can prevent that test equipment from damaging, simultaneously through transmission cable and energy storage module's accordant connection for transmission efficiency maximize, simultaneously owing to be multistage connection, only need correspond when one of them part damages and change it, can not cause the generator whole to scrap, generator use cost reduces like this.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. Can improve device operating stability's Marx generator, a serial communication port, including inside cavity and top open-ended shielding section of thick bamboo (4), the open end of shielding section of thick bamboo (4) is provided with apron (2), be provided with a plurality of monopole module and an output electrode board (3) in the inner chamber of shielding section of thick bamboo (4), the monopole module all is vertically to connect gradually along the inner chamber of shielding section of thick bamboo (4), output electrode board (3) are located between monopole module and apron (2), the monopole module and the shielding section of thick bamboo (4) inner chamber bottom of below are connected, the monopole module and the output electrode board (3) of the top are connected, be connected with cable (1) on output electrode board (3), the one end of cable (1) is located shielding section of thick bamboo (4) outside after passing apron (2).

2. Marx generator capable of improving the running stability of a device according to claim 1, characterized in that the single-pole modules each comprise two capacitors (6) and one switch (5), the switch (5) in the same single-pole module is arranged between the capacitors (6) and is simultaneously connected with the two capacitors (6), the lowest capacitor (6) in the capacitors (6) is connected with the bottom of the inner cavity of the shielding cylinder (4), and the highest capacitor (6) is connected with the output electrode plate (3).

3. Marx generator capable of improving the operational stability of a plant according to claim 2, characterised in that the upper pole of the upper part of the switch (5) is connected to the adjacent capacitor (6) and the lower pole of the lower part of the switch (5) is connected to the adjacent capacitor (6).

4. Marx generator capable of improving the operational stability of a device according to claim 3, characterized in that the upper electrode of the upper part of the switch (5) is charged with a positive high voltage and the lower electrode of the lower part of the switch (5) is charged with a negative high voltage.

5. Marx generator capable of improving the operational stability of a plant according to claim 3, characterised in that the upper or lower electrode of the switch (5) is screwed to the electrode of the adjacent capacitor (6).

6. Marx generator capable of improving the operational stability of a plant according to claim 1, characterised in that the cover plate (2) is fixed to and can completely cover the open end of the shielding cylinder (4).

7. Marx generator capable of improving the running stability of a device according to claim 1, characterized in that the cable (1) comprises an inner core and an outer core, the inner core is located inside the outer core, the outer core is connected with the cover plate (2), and the inner core is connected with the output electrode plate (3).

8. Marx generator capable of improving the operational stability of a plant according to any of claims 1 to 7, characterised in that the shielding cylinder (4) is cylindrical.