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High-temperature pulse large-current discharge test device and method of coaxial gas switch

A technology of high-current discharge and gas switch, which is applied in the direction of measuring devices, measuring electricity, and measuring electrical variables, etc., can solve the problems of being unable to accurately grasp the working status of the gas switch, affecting the operation and application of pulse power devices, and meeting the needs of experiments. Effect

Pending Publication Date: 2022-02-18
NORTHWEST INST OF NUCLEAR TECH
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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the working status of the gas switch cannot be accurately grasped in a high temperature environment, thereby affecting the normal operation and application of the pulse power device, and to provide a high temperature pulse high current discharge test device and test method for a coaxial gas switch

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  • High-temperature pulse large-current discharge test device and method of coaxial gas switch

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[0031] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Those skilled in the art will appreciate that these embodiments are merely used to explain the technical principles of the present invention, and the objectives are not intended to limit the scope of the invention.

[0032] When the gas switch is working, when the ambient temperature changes, the following changes are caused: First, when the ambient temperature changes, the switch electrode and the switch insulator will have a certain degree of thermal expansion, causing changes in the switch gap; second, when the environment When the temperature is changed, since the gas switch is a closed cavity, the air pressure in the gas switch gap will change, thereby causing the change in the switch breakdown voltage; third, the gas temperature in the switch gap increases, in the micro, will The gas molecular thermal motion in the switching gap is intensified,...

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Abstract

The invention provides a high-temperature pulse large-current discharge test device and method of a coaxial gas switch, and mainly solves the problem that the normal operation and application of a pulse power device are influenced because the working state of the gas switch cannot be accurately mastered in a high-temperature environment. The test device comprises a high-temperature test box, an energy storage capacitor, a high-temperature insulator, a high-voltage direct-current power supply and a pulse current detection coil; a heating device is arranged on the side wall of the high-temperature test box; the high-temperature insulator is arranged on one side of an opening of the high-temperature test box, the coaxial gas switch is arranged in the high-temperature test box, and a switch shell of the coaxial gas switch is connected with the high-temperature test box through the high-temperature insulator; a high-voltage electrode of the coaxial gas switch penetrates through the insulating sleeve to be connected with a high-voltage direct-current power supply and an energy storage capacitor, and the high-voltage direct-current power supply charges the coaxial gas switch and the energy storage capacitor in a direct-current mode through wires; and the pulse current detection coil is arranged on the insulating sleeve and is electrically connected with the coaxial gas switch.

Description

Technical field [0001] The present invention relates to the field of pulse power technology, and more particularly to a high temperature pulse large current discharge test apparatus and test method for coaxial gas switches. Background technique [0002] Pulse power equipment or devices in scientific research and applications in industrial and agricultural production are increasingly wide. In recent years, as China's oil and gas is gradually improved (now up to 70%), the energy security situation is grim, the shale oil development is to make up for the important breakthrough of domestic oil and gas resources and enhance energy security. After preliminary evaluation, China's low-maturity shale oil technology can collect resources of 13.5 billion tons, one of the main battlefields developed by China's future oil and gas resources. At present, only the original modified technological research of low-mature shale oil in the sea phase is carried out, and there is no difficulty in enter...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/12
CPCG01R31/1227
Inventor 姚伟博魏浩杨海亮王志国徐启福姜晓峰汪金华降宏瑜
Owner NORTHWEST INST OF NUCLEAR TECH
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