CN102720589B - Plasma body igniter and gas turbine - Google Patents
Plasma body igniter and gas turbine Download PDFInfo
- Publication number
- CN102720589B CN102720589B CN201210236850.2A CN201210236850A CN102720589B CN 102720589 B CN102720589 B CN 102720589B CN 201210236850 A CN201210236850 A CN 201210236850A CN 102720589 B CN102720589 B CN 102720589B
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- housing
- cathode
- plasma igniter
- negative electrode
- casing
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- 238000009413 insulation Methods 0.000 claims abstract description 5
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 12
- 230000003044 adaptive effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000005474 detonation Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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- Plasma Technology (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
The invention discloses a gas turbine a plasma body igniter and a gas turbine. The plasma body igniter comprises a cathode, a cathode rod, an insulation sleeve, an electrode holder and a casing; wherein the casing serving as an anode is sleeved outside the cathode rod, the insulation sleeve is arranged between the casing and the cathode rod, the cathode is electrically connected with the head part of the cathode rod, the electrode holder for connecting the negative pole of an input power is positioned at the tail part of the cathode rod, the cathode is positioned outside the casing, and the distance between the cathode and the casing can be adjusted. As the distance between the cathode and the casing can be adjusted, the on-site adaptability of the plasma body igniter can be enhanced, the arc-through capability can be satisfactorily controlled, the stability of arc strike is ensured, the arc strike process can be completed in a short time, the normal operation of the onsite equipment is guaranteed, and the working efficiency is improved.
Description
Technical field
The present invention relates to active field, particularly relate to a kind of plasma igniter and gas turbine.
Background technique
In gas turbine firing technique, plasma technique is widely used with advantages such as ignition energy are concentrated, calorie spread speed is fast, burning-out rate is high.The size of its ignition ability is that the arc characteristic being produced by it determines, so the producing method of electric arc is the key of whole igniting process.
At present, conventional gas turbine plasma igniter production process is complicated, and negative electrode and anode gap are fixed, and have following several shortcoming:
1) negative electrode is surrounded by anode, and plasma output energy is less, ignition ability a little less than;
2) negative electrode and anode gap are fixed, and the output power of plasma igniter is fixed, when quality of fuel changes, and the situation that may produce ignition difficulties or can not light;
3) if improve inrush current, strengthen the power of plasma igniter, because electric current strengthens the infringement of electrode, so its life-span can reduce.
Facts have proved, current plasma igniter can not adapt to various field situation well.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of plasma igniter.Because the distance between negative electrode and housing can regulate, therefore can strengthen the on-the-spot adaptive capacity of plasma igniter.
According to an aspect of the present invention, a kind of plasma igniter is provided, comprise negative electrode, cathode bar, insulating bush, electrode tip holder, housing, wherein as the housing of anode, be set in the outside of cathode bar, insulating bush is arranged between housing and cathode bar, and negative electrode is electrically connected to the head of cathode bar, is positioned at the afterbody of cathode bar for connecting the electrode tip holder of input power negative pole, negative electrode is positioned at the outside of housing, and the distance between negative electrode and housing can regulate simultaneously.
Preferably, between negative electrode and housing, be provided with for regulating the range adjuster of distance between negative electrode and housing.
Preferably, range adjuster is thread regulator or latch.
Preferably, plasma igniter also comprises the anti-ripple ring for fixed insulation cover.
Preferably, anti-ripple ring is taper.
Preferably, between anti-ripple ring and insulating bush, pad is set.
Preferably, cathode bar and housing are coaxially installed.
Preferably, housing is provided with the hole that air enters.
Preferably, housing is formed in one.
According to a further aspect in the invention, provide a kind of gas turbine, comprise above-mentioned arbitrary embodiment's plasma igniter.
The present invention, because the distance between negative electrode and housing can regulate, therefore can strengthen the on-the-spot adaptive capacity of plasma igniter, controls well arc through ability, guarantee that the starting the arc is stable, and the short time complete Igniting pattern, guarantee that field apparatus normally moves, and increases work efficiency.
Accompanying drawing explanation
Fig. 1 is an embodiment's of plasma igniter of the present invention schematic diagram.
Fig. 2 is another embodiment's of plasma igniter of the present invention schematic diagram.
Fig. 3 is an embodiment's of plasma igniter middle shell of the present invention schematic diagram.
Fig. 4 be A shown in Fig. 2 to schematic diagram.
Fig. 5 be N-N shown in Fig. 2 to schematic diagram.
Fig. 6 be B shown in Fig. 2 to schematic diagram.
Embodiment
With reference to the accompanying drawings the present invention is described more fully, exemplary embodiment of the present invention is wherein described.
Fig. 1 is an embodiment's of plasma igniter of the present invention schematic diagram.As shown in Figure 1, plasma igniter comprises negative electrode 1, cathode bar 2, insulating bush 3, electrode tip holder 4, housing 5.Wherein:
As the housing 5 of anode, be set in the outside of cathode bar 2, insulating bush 3 is arranged between housing 5 and cathode bar 2, negative electrode 1 is electrically connected to the head 21 of cathode bar 2, for connecting the electrode tip holder 4 of input power negative pole, be positioned at the afterbody 22 of cathode bar 2, negative electrode 1 is positioned at the outside of housing 5, and the distance between negative electrode 1 and housing 5 can regulate simultaneously.
The plasma igniter providing based on the above embodiment of the present invention, because the distance between negative electrode and housing can regulate, therefore can strengthen the on-the-spot adaptive capacity of plasma igniter, control well arc through ability, guarantee that the starting the arc is stable, and the short time complete Igniting pattern, guarantee that field apparatus normally moves, and increases work efficiency.
Because negative electrode 1 extends to outside housing 5, thereby in Igniting pattern, have air more fully, this is conducive to arc through.Can control the output power of plasma generator by regulating the distance between negative electrode 1 and housing 5, adjust the ability of its igniting.
Preferably, between negative electrode 1 and housing 5, be provided with for regulating the range adjuster of distance between negative electrode 1 and housing 5.For example, range adjuster can for thread regulator, latch or other can adjustable range device.
Fig. 2 is another embodiment's of plasma igniter of the present invention schematic diagram.Wherein in the embodiment shown in Figure 2, further, plasma igniter also comprises the anti-ripple ring 6 for fixed insulation cover 3.Preferably, anti-ripple ring 6 is taper, and igniter is tightened up to effect.
Preferably, between anti-ripple ring 6 and insulating bush 3, pad 7 is set, for further improving the effect of tightening up of anti-ripple ring 6.
Preferably, cathode bar 2 is coaxially installed with housing 5.
Preferably, housing 5 is provided with the hole that air enters, thereby guarantees the air supply that igniting is required.The schematic diagram of the preferred embodiment as shown in Figure 3.
Preferably, housing 5 is formed in one.Because housing 5 is formed in one, do not need through being welded to form, so preparation process is simple, also there is the feature that the starting the arc is stable, the life-span is long simultaneously.Meanwhile, housing 5 can, according to different field conditions, carry out corresponding change to boundary dimension.
Fig. 4 be A shown in Fig. 2 to schematic diagram.Fig. 5 be N-N shown in Fig. 2 to schematic diagram.Fig. 6 be B shown in Fig. 2 to schematic diagram.
Preferably, plasma igniter also comprises the sealing gasket 8 in installed position sealing for plasma igniter and gas turbine, is convenient to plasma igniter and is installed on gas turbine.
Above-mentioned means can ensure the stability of plasma igniter work.Meanwhile, plasma igniter comprises corresponding power supply unit, can set design parameter according to actual conditions, adjusts arc through ability, completes better Igniting pattern.
The working procedure of plasma igniter is: connects ac power supply, by control box, ac power supply is upgraded to high-tension electricity, then by high temperature high voltage resistant cable, high voltage is connected to plasma igniter, and disruptive discharge gap, thus produce electric arc.
For example, under some oil condition, the gap of negative electrode and anode casing can be tuned up at the scene, improve the output power of plasma generator, reach igniting requirement.For in a gas situation, the gap of negative electrode and anode casing can be turned down at the scene, reduce the output power of plasma generator, prevent gas detonation.
The invention still further relates to a kind of gas turbine, wherein this gas turbine comprises the plasma igniter that above-mentioned arbitrary embodiment relates to.
The present invention is because the distance between negative electrode and housing can regulate, therefore can strengthen the on-the-spot adaptive capacity of plasma igniter, can adapt to a gas and two kinds of different field conditions of some oil, control well arc through ability, guarantee that the starting the arc is stable, and the short time complete Igniting pattern, guarantee that field apparatus normally moves, and increases work efficiency.
Description of the invention provides for example with for the purpose of describing, and is not exhaustively or limit the invention to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Selecting and describing embodiment is for better explanation principle of the present invention and practical application, thereby and makes those of ordinary skill in the art can understand the various embodiments with various modifications that the present invention's design is suitable for special-purpose.
Claims (8)
1. a plasma igniter, comprises negative electrode (1), cathode bar (2), insulating bush (3), electrode tip holder (4), housing (5), it is characterized in that:
As the housing (5) of anode, be set in the outside of cathode bar (2), insulating bush (3) is arranged between housing (5) and cathode bar (2), negative electrode (1) is electrically connected to the head (21) of cathode bar (2), the afterbody (22) that is positioned at cathode bar (2) for connecting the electrode tip holder (4) of input power negative pole, negative electrode (1) is positioned at the outside of housing (5);
Between negative electrode (1) and housing (5), be provided with for regulating the range adjuster of distance between negative electrode (1) and housing (5);
Housing (5) is provided with the hole that air enters.
2. plasma igniter according to claim 1, is characterized in that: range adjuster is thread regulator or latch.
3. according to the plasma igniter described in any one in claim 1-2, it is characterized in that: plasma igniter also comprises the anti-ripple ring (6) for fixed insulation cover (3).
4. plasma igniter according to claim 3, is characterized in that: anti-ripple ring (6) is taper.
5. plasma igniter according to claim 3, is characterized in that: between anti-ripple ring (6) and insulating bush (3), pad (7) is set.
6. according to the plasma igniter described in any one in claim 1-2, it is characterized in that: cathode bar (2) is coaxially installed with housing (5).
7. according to the plasma igniter described in any one in claim 1-2, it is characterized in that: housing (5) is formed in one.
8. a gas turbine, is characterized in that: comprise the plasma igniter described in any one in claim 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210236850.2A CN102720589B (en) | 2012-07-10 | 2012-07-10 | Plasma body igniter and gas turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210236850.2A CN102720589B (en) | 2012-07-10 | 2012-07-10 | Plasma body igniter and gas turbine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102720589A CN102720589A (en) | 2012-10-10 |
| CN102720589B true CN102720589B (en) | 2014-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210236850.2A Expired - Fee Related CN102720589B (en) | 2012-07-10 | 2012-07-10 | Plasma body igniter and gas turbine |
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| CN (1) | CN102720589B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108844093A (en) * | 2018-08-15 | 2018-11-20 | 中山市铧禧电子科技有限公司 | A kind of test device of accurate adjustment and measurement igniter arcing distance |
| CN110145400B (en) * | 2019-05-21 | 2022-12-13 | 大连民族大学 | Dual-mode plasma igniter |
| CN116557147B (en) * | 2023-07-10 | 2023-09-12 | 中国人民解放军空军工程大学 | Plasma detonation device, rotary detonation engine and detonation method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202645738U (en) * | 2012-07-10 | 2013-01-02 | 烟台龙源电力技术股份有限公司 | Plasma igniter and combustion gas turbine |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB284041A (en) * | 1926-11-05 | 1928-01-26 | Albert Metie | Improvements in sparking plugs for internal combustion engines |
| DE2951848C2 (en) * | 1979-12-21 | 1984-11-08 | Lacrex Brevetti S.A., Orselina | Breakaway spark plug |
| CN2326862Y (en) * | 1998-03-31 | 1999-06-30 | 烟台开发区龙源电力燃烧控制工程有限公司 | Firing gun for plasma ignition device |
| CN101463764B (en) * | 2009-01-09 | 2010-09-08 | 哈尔滨工程大学 | High-energy plasma igniter of gas turbine |
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- 2012-07-10 CN CN201210236850.2A patent/CN102720589B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202645738U (en) * | 2012-07-10 | 2013-01-02 | 烟台龙源电力技术股份有限公司 | Plasma igniter and combustion gas turbine |
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| CN102720589A (en) | 2012-10-10 |
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Granted publication date: 20140716 Termination date: 20200710 |