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Discharge Electrode for Underwater Plasma Acoustic Source

A discharge electrode and plasma technology, which is applied in the direction of sound-generating devices and instruments, can solve the problems such as the inability to adjust the electrode height, achieve the effects of low loss, reduce maintenance costs, and improve mechanical strength

Active Publication Date: 2015-10-28
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

None of the above patents can achieve electrode height adjustment, especially precise adjustment under high power conditions

Method used

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  • Discharge Electrode for Underwater Plasma Acoustic Source
  • Discharge Electrode for Underwater Plasma Acoustic Source
  • Discharge Electrode for Underwater Plasma Acoustic Source

Examples

Experimental program
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Embodiment Construction

[0022] Describe the present invention below in conjunction with specific embodiment:

[0023] Refer to attached figure 1 , The discharge electrode of the underwater plasma sound source in this embodiment includes an integrated inner electrode 1 , an insulating layer 2 , an integrated outer electrode 3 and a fixed bracket 4 .

[0024] The integrated internal electrode is composed of an internal electrode body and an internal discharge contact, and the internal discharge contact is welded to one end of the internal electrode body. The internal discharge contact is used as one pole of the discharge electrode, and the material with good ablation resistance and good conductivity is selected. When the discharge electrode is working, it mainly relies on the inner discharge contact part for tip discharge, while the inner electrode body is mainly used for conducting electricity and connecting other components. This integrated structure has high mechanical strength, impact resistance,...

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Abstract

The invention provides a discharge electrode of an underwater plasma sound source. The discharge electrode comprises an integral inner electrode, an insulating layer, an integral outer electrode and a fixing support. The insulating layer is fixed on the outer surface of the integral inner electrode, and the outer circumferential face of the insulating layer is of an outer thread structure. The integral outer electrode is composed of a cross support, an outer discharge contact and a thread connecting part, wherein the thread connecting part is of a hollow cylindrical structure, the thread connecting part and the insulating layer are coaxially and fixedly connected in a threaded seal mode, and the center axis of an inner discharge contact and the center axis of the outer discharge contact are coaxial. The thread connecting part and the fixing support are coaxially and fixedly connected in a threaded seal mode. The fixing support is fixed on an outer installation base. The discharge electrode can adjust distances and heights in the situations of high power, large currents and high repeat frequency, and namely a sound field center can be adjusted at will, and is suitable for energy-gathering reflective shells with different profiles and focal distances.

Description

technical field [0001] The invention relates to a discharge electrode, in particular to a discharge electrode of an underwater plasma sound source. Background technique [0002] The underwater plasma sound source is a pulsed sound source that uses the "hydroelectric effect" to generate underwater shock waves. It has a series of advantages such as high emission sound power, narrow pulse, and wide frequency band. It is widely used in the fields of in vitro gravel and pipeline descaling, food disinfection and sewage treatment, marine exploration and target detection. The so-called hydroelectric effect refers to the phenomenon that when a high-voltage discharge is performed in a liquid, extremely high pressure is generated in the discharge area. The underwater plasma sound source system mainly includes a charging system, an energy storage system, a trigger system, a discharge electrode and an energy-gathering reflector, where the discharge electrode is the core component of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G10K15/06
Inventor 雷开卓陈建峰张群飞许晖屈健康傅增祥滕舵方益喜
Owner NORTHWESTERN POLYTECHNICAL UNIV
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