CN203026477U - Glow discharge electrode with slot electrical insulation structure - Google Patents
Glow discharge electrode with slot electrical insulation structure Download PDFInfo
- Publication number
- CN203026477U CN203026477U CN 201220729532 CN201220729532U CN203026477U CN 203026477 U CN203026477 U CN 203026477U CN 201220729532 CN201220729532 CN 201220729532 CN 201220729532 U CN201220729532 U CN 201220729532U CN 203026477 U CN203026477 U CN 203026477U
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- China
- Prior art keywords
- electrode
- vacuum lead
- discharge electrode
- glow discharge
- electrical insulation
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Abstract
The utility model relates to a glow discharge electrode, and particularly discloses a glow discharge electrode with a slot electrical insulation structure. The electrode comprises a vacuum lead, an electrode part arranged at one end of the vacuum lead, and a shield cover covering the vacuum lead and the electrode, wherein insulators are arranged between the shield cover and the vacuum lead; gaps are formed among the electrode part, the vacuum lead and the shield cover; the spacing of the gaps is 5-20mm; and the insulators are far away from the head of the electrode part and made of an Al2O3 ceramic material with purity being greater than or equal to 99%. The electrode is simple in structure, has good electrical insulation property and neutron irradiation resistance, can avoid parasitic discharge and radio-frequency interference with a peripheral system, requires no periodic maintenance, or prolongs the interval time of periodic maintenance, meets safety and reliability requirements of a fusion experimental reactor on the glow discharge electrode, and is applicable to the fusion experimental reactor and an ultrahigh vacuum device with a special requirement.
Description
Technical field
The utility model belongs to a kind of glow-discharge electrode, is specifically related to a kind of glow-discharge electrode with gap electrically insulated structures that will be applied to the exercise of international thermonuclear fusion experimental reactor (ITER) wall.
Background technology
The electrical insulation capability that is used for the light echo sparking electrode of wall exercise in thermonuclear fusion experimental reactor is the design and the most important thing of making of electrode.At first, at the wall exercise period, be in just due to gas pressure intensity near the easiest breakdown area of handkerchief law, the key factor that arc is the electric insulation of restriction electrode is climbed on partial discharge between glow-discharge electrode and the parts that are positioned at earth potential (idiostatic with vacuum chamber, together as negative electrode) on every side and insulating part surface; In addition, will reduce the electrical insulation capability of insulating material due to neutron irradiation; Moreover, the parasitism discharge of the light echo sparking electrode that is positioned at high potential to other system around it, and at plasma discharge microwave energy of inducting in service to the interference of other system on every side, will be all the design of fusion assay heap, build in concerned issue very.Glow-discharge electrode in current fusion assay device is all to be supported by the insulator that vacuum insulation is made, and adopts stainless steel shielding cover to carry out partial occlusion shielding, the electrically insulated structures that perhaps blocks by electrode structure to insulator.The characteristics of this shielding construction be by the insulator of radome shadow shield after experience long-term glow discharge and plasma discharge operation, insulator was easily lost efficacy by sedimentary deposit short circuit again, needed periodic maintenance, its security reliability is received serious restriction.For these reasons, need a kind of safe, reliable, glow-discharge electrode of need not periodic maintenance or extending maintenance intervals.
Summary of the invention
The purpose of this utility model is to provide a kind of glow-discharge electrode with gap electrically insulated structures, this electrode has good electric simulation strength and anti-neutron irradiation ability, and prevent from peripheral system is produced parasitic discharge and radio frequency interference, satisfy the safety and reliability requirement of fusion assay heap.
Realize the utility model purpose technical scheme: a kind of glow-discharge electrode with gap electrically insulated structures, this electrode comprises the vacuum lead-in wire, is arranged on the electrode of vacuum lead-in wire one end, is enclosed within vacuum lead-in wire and the outer radome of electrode, be provided with insulator between described radome and vacuum lead-in wire, all form the gap between electrode, vacuum lead-in wire and radome.
The spacing in described gap is 5～20mm.
Described insulator is away from the head of electrode.
Described insulator is purity more than or equal to 99% Al
2O
3Ceramic material.
Useful technique effect of the present utility model: electrode structure of the present utility model is simple; Have good electrical insulation capability and anti-neutron irradiation performance; Can avoid simultaneously peripheral system is produced parasitic discharge and radio frequency interference; Need not periodic maintenance, or extend periodic maintenance interval time, satisfy the fusion assay heap to the safety and reliability requirement of light echo sparking electrode.This electrode both had been applicable to the fusion assay heap, also was applicable to the glow-discharge electrode of the ultra high vacuum device of specific (special) requirements.
Description of drawings
Fig. 1 is a kind of structural representation with glow-discharge electrode of gap electrically insulated structures provided by the utility model;
In figure: 1-slot insulation, 2-insulator, 3-vacuum lead-in wire, 4-electrode; The 5-radome.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As shown in Figure 1, a kind of glow-discharge electrode with gap electrically insulated structures provided by the utility model, this electrode comprises insulator 2, vacuum lead-in wire 3, electrode 4 and radome 5, one end of vacuum lead-in wire 3 is connected with electrode 4, radome 5 is enclosed within outside vacuum lead-in wire 3 and electrode 4, and is provided with insulator 2 between radome 5 and vacuum lead-in wire 3.
The quantity of insulator 2 can be the even numbers such as two, four or eight, and two adjacent insulators 2 are symmetricly set on vacuum lead-in wire 3 both sides.By being set, insulator will all form gap 1 between electrode 4, vacuum lead-in wire 3 and radome 5.Want evenly in gap 1, and gap 1 spacing is in 5～20mm scope, and insulator 2 is away from the head of electrode 4, and insulator 2 is that purity is more than or equal to 99%Al
2O
3Ceramic material.
The above has done detailed description to the utility model in conjunction with the accompanying drawings and embodiments, but the utility model is not limited to above-described embodiment, in the ken that those of ordinary skills possess, can also make various variations under the prerequisite that does not break away from the utility model aim.The content that is not described in detail in the utility model all can adopt prior art.
Claims (4)
1. glow-discharge electrode with gap electrically insulated structures, it is characterized in that: this electrode comprises vacuum lead-in wire (3), is arranged on the electrode (4) of vacuum lead-in wire (3) one ends, is enclosed within vacuum lead-in wire (3) and the outer radome (5) of electrode (4), be provided with insulator (2) between described radome (5) and vacuum lead-in wire (3), all form gap (1) between electrode (4), vacuum lead-in wire (3) and radome (5).
2. a kind of glow-discharge electrode with gap electrically insulated structures according to claim 1, it is characterized in that: the spacing of described gap (1) is 5～20mm.
3. a kind of glow-discharge electrode with gap electrically insulated structures according to claim 1 and 2, it is characterized in that: described insulator (2) is away from the head of electrode (4).
4. a kind of glow-discharge electrode with gap electrically insulated structures according to claim 1 and 2 is characterized in that: described insulator (2) for purity more than or equal to 99% Al
2O
3Ceramic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220729532 CN203026477U (en) | 2012-12-26 | 2012-12-26 | Glow discharge electrode with slot electrical insulation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220729532 CN203026477U (en) | 2012-12-26 | 2012-12-26 | Glow discharge electrode with slot electrical insulation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203026477U true CN203026477U (en) | 2013-06-26 |
Family
ID=48650439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220729532 Withdrawn - After Issue CN203026477U (en) | 2012-12-26 | 2012-12-26 | Glow discharge electrode with slot electrical insulation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203026477U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103903930A (en) * | 2012-12-26 | 2014-07-02 | 核工业西南物理研究院 | Glow discharge electrode with gap electrical insulation structure |
| CN104658836A (en) * | 2013-11-22 | 2015-05-27 | 核工业西南物理研究院 | Electrode of electric insulation structure |
-
2012
- 2012-12-26 CN CN 201220729532 patent/CN203026477U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103903930A (en) * | 2012-12-26 | 2014-07-02 | 核工业西南物理研究院 | Glow discharge electrode with gap electrical insulation structure |
| CN103903930B (en) * | 2012-12-26 | 2016-06-01 | 核工业西南物理研究院 | There is the glow-discharge electrode of gap electrically insulated structures |
| CN104658836A (en) * | 2013-11-22 | 2015-05-27 | 核工业西南物理研究院 | Electrode of electric insulation structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130626 Effective date of abandoning: 20160601 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |