WO2008131606A1 - Cathodes doubles combinées de générateur de plasma - Google Patents

Cathodes doubles combinées de générateur de plasma Download PDF

Info

Publication number
WO2008131606A1
WO2008131606A1 PCT/CN2007/002086 CN2007002086W WO2008131606A1 WO 2008131606 A1 WO2008131606 A1 WO 2008131606A1 CN 2007002086 W CN2007002086 W CN 2007002086W WO 2008131606 A1 WO2008131606 A1 WO 2008131606A1
Authority
WO
WIPO (PCT)
Prior art keywords
cathode
main
auxiliary
plasma generator
arc
Prior art date
Application number
PCT/CN2007/002086
Other languages
English (en)
Chinese (zh)
Inventor
Hong Tang
Ruolian Xue
Peng Liu
Jinhua Yang
Yingjie Qian
Original Assignee
Yantailongyuan Electric Power Technology Co. , Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yantailongyuan Electric Power Technology Co. , Ltd filed Critical Yantailongyuan Electric Power Technology Co. , Ltd
Publication of WO2008131606A1 publication Critical patent/WO2008131606A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00—Generating plasma; Handling plasma
    • H05H1/24—Generating plasma
    • H05H1/26—Plasma torches
    • H05H1/32—Plasma torches using an arc
    • H05H1/34—Details, e.g. electrodes, nozzles
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00—Generating plasma; Handling plasma
    • H05H1/24—Generating plasma
    • H05H1/26—Plasma torches
    • H05H1/32—Plasma torches using an arc
    • H05H1/34—Details, e.g. electrodes, nozzles
    • H05H1/3436—Hollow cathodes with internal coolant flow

Definitions

  • the invention relates to a combined dual cathode for a plasma generator.
  • DC arc plasma is the most widely studied thermal plasma state.
  • DC arc plasma generators used in many fields have shortcomings such as short cathode life, low continuous working ability, and long maintenance time after work interruption, which have unpredictable consequences for subsequent work. Therefore, how to improve the life of the plasma generator is a hot issue in the industry.
  • a combined double cathode of a plasma generator comprising a cathode conductive component, an air inlet interface, a cooling water channel and a swirling gas channel, the cathode electrical component being composed of a main cathode and an auxiliary cathode arranged concentrically, wherein the main cathode Axially mounted inside the center of the auxiliary cathode, the main cathode is provided with an axial driving mechanism, and an internal space formed between the main cathode and the auxiliary cathode is a medium gas passage, and the medium gas passes through the inlet interface on the auxiliary cathode. Introduced from the outside.
  • a combined double cathode of a plasma generator has a water-cooled loop structure for both the main cathode and the auxiliary cathode.
  • a combined double cathode of a plasma generator as described above is provided with a swirling air ring in the swirling gas passage.
  • FIG. 1 is a schematic view of the structure of the present invention.
  • the present invention provides a combined dual cathode of an arc plasma generator comprising a main cathode and an auxiliary cathode; the two cathodes share an anode, wherein the main cathode and the auxiliary cathode are concentrically mounted inside the generator;
  • a driving mechanism is mounted on the main cathode, and the main cathode can move axially within a certain range under the driving mechanism.
  • the annular space formed between the main cathode and the auxiliary cathode is a channel of swirling gas.
  • a swirling wind is formed in the space, and the swirling wind is a combined double cathode.
  • Medium gas and cooling curtains are provided.
  • the arc root of the cathodic arc is transferred from the main cathode to the auxiliary cathode, and an auxiliary arc discharge is generated between the cathode and the anode.
  • the generator operates in the case where the anode and the auxiliary cathode form an arc discharge
  • the main cathode moves toward the anode and the anode is less difficult to form an arc discharge than the auxiliary cathode and the anode, the arc discharge is transferred to the main Between the cathode and the anode.
  • the cathode of this structure greatly improves the stability of the plasma generator operation and the life of the entire cathode.
  • Figure 1 is a schematic diagram of a combined dual cathode of a plasma generator.
  • 1 a main cathode return water interface 2 - main cathode, 3- - auxiliary cathode return water interface, 4- - - auxiliary cathode, 5 - a main cathode water inlet interface, 6 - - - drive mechanism, 7 --- inlet air interface, 8 - auxiliary cathode inlet, 9-one swirling air channel, 10- - inline swirling air ring.
  • a combined dual cathode structure of a plasma generator comprising two cathodes of a main cathode 2 and an auxiliary cathode 4; two cathodes share an anode, wherein the main cathode 2 is axially mounted inside the center of the auxiliary cathode 4, and The auxiliary cathode 4 is coaxial; the main cathode 2 has a driving mechanism 6 connected to the external motor. Under the driving of the motor, the driving mechanism 6 can drive the main cathode 2 to move back and forth in the axial direction (inlaid with the swirling air ring 10) Set in the main yin Outside the pole 2, it provides support for the movement of the main cathode 2).
  • An internal space formed between the main cathode 2 and the auxiliary cathode 4 is a swirling medium gas passage 9, through which the swirling wind is introduced from the outside.
  • a cooling circuit on the main cathode.
  • a certain pressure of water flows in from the main cathode inlet circuit interface 5, and flows out from the main cathode return water port 1; the auxiliary cathode has a cooling water circuit, and a certain pressure of water is assisted.
  • the cathode water inlet port 8 flows in and flows out from the auxiliary cathode return water port 3.
  • the two-way cooling circuit fully guarantees that this combination is the cooling effect of the cathode.
  • the working process of the combined double cathode of the present invention is as follows: after the plasma generator is installed, the power is turned on, and under the action of the external control system, the main cathode 2 moves toward the anode along with the driving mechanism 6 until the anode Contact, the contact arc is generated, and an arc discharge is formed between the main cathode 2 and the anode. At this time, the auxiliary cathode 4 is in a standby state. Then, when the main cathode 2 moves away from the anode, the difficulty of forming an arc discharge between the main cathode 2 and the anode increases.
  • auxiliary cathode 4 When reaching a certain position, it is relatively easy for the auxiliary cathode 4 to form an arc discharge with the anode, and the arc root of the cathode arc is from the main The cathode 2 is transferred to the auxiliary cathode 4, and the main cathode 2 is in a standby state.
  • the difficulty of forming the arc discharge between the main cathode 2 and the anode becomes smaller, and when it is less difficult to form an arc discharge between the auxiliary cathode 4 and the anode, the arc root is transferred from the auxiliary cathode 4 to the main On the cathode 2, a loop is formed between the main cathode 2 and the anode, and the auxiliary cathode 4 becomes a standby cathode again.
  • the combined double cathode can transfer the arc to each other on the two cathodes without affecting the continuous combustion of the arc, thereby realizing the standby of the main and auxiliary cathodes, thereby greatly improving the stability of the working of the plasma generator and the cathode. life.
  • the utility model is applied as a cathode of a plasma generator to an industrial boiler plasma ignition system.
  • the driving mechanism is activated to control the moving direction of the main cathode to realize the transfer of the arc arc root of the cathode. This saves time for the maintenance of the generator and avoids a shutdown or oil injection accident caused by prolonged maintenance when the generator is broken.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Plasma Technology (AREA)

Abstract

Les cathodes doubles combinées de générateur de plasma selon l'invention comprennent un ensemble conducteur de cathode, qui est composé d'une cathode principale (2) et d'une cathode auxiliaire (4) coaxiales, la cathode principale (2) étant fixée axialement à l'intérieur du centre de la cathode auxiliaire (4), un mécanisme entraîné axial (6) étant fixé sur la cathode principale (2), le mécanisme entraîné axial (6) pouvant déplacer la cathode principale (2) le long d'un axe dans une certaine plage, l'espace annulaire entre la cathode principale (2) et la cathode auxiliaire (4) étant un canal de gaz diélectrique (9).
PCT/CN2007/002086 2007-04-25 2007-07-06 Cathodes doubles combinées de générateur de plasma WO2008131606A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200710097505.4 2007-04-25
CN2007100975054A CN101296551B (zh) 2007-04-25 2007-04-25 等离子发生器的联合式双阴极

Publications (1)

Publication Number Publication Date
WO2008131606A1 true WO2008131606A1 (fr) 2008-11-06

Family

ID=39925176

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2007/002086 WO2008131606A1 (fr) 2007-04-25 2007-07-06 Cathodes doubles combinées de générateur de plasma

Country Status (2)

Country Link
CN (1) CN101296551B (fr)
WO (1) WO2008131606A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102123558A (zh) * 2010-12-22 2011-07-13 武汉天和技术股份有限公司 长寿命内空式阴极双压缩等离子体发生装置
WO2018236662A1 (fr) * 2017-06-20 2018-12-27 The Esab Group Inc. Électrode électromécanique à actionnement linéaire

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101998750B (zh) * 2009-08-14 2012-09-26 中国科学院金属研究所 一种等离子体阴极与保护方法
CN102244971A (zh) * 2010-05-13 2011-11-16 贵州翔明科技有限责任公司 一种大气压直流弧放电等离子体发生装置及阴极制作方法
CN105554996B (zh) * 2016-02-16 2017-12-01 衢州迪升工业设计有限公司 电弧等离子体装置
CN105555004B (zh) * 2016-02-16 2017-12-08 衢州迪升工业设计有限公司 伸缩式引弧的电极结构
CN105554997B (zh) * 2016-02-16 2018-01-02 衢州迪升工业设计有限公司 电弧等离子体装置的电极
CN105491781B (zh) * 2016-02-16 2018-01-02 衢州迪升工业设计有限公司 伸缩式引弧的等离子体电极
CN105517313B (zh) * 2016-02-16 2018-01-02 衢州迪升工业设计有限公司 伸缩式引弧热解装置的电极
CN105555005B (zh) * 2016-02-16 2017-12-05 衢州迪升工业设计有限公司 一种伸缩式引弧的等离子体热解装置
CN105578701B (zh) * 2016-02-16 2018-03-06 衢州迪升工业设计有限公司 一种伸缩式引弧的电极
CN105491777B (zh) * 2016-02-16 2018-01-02 衢州迪升工业设计有限公司 伸缩式引弧的等离子体装置
CN107371314B (zh) * 2016-02-22 2019-03-12 衢州迪升工业设计有限公司 电离协同的多级电极等离子体热解装置
CN105491778B (zh) * 2016-02-22 2017-12-05 衢州迪升工业设计有限公司 一种等离子体热解装置
CN105592619B (zh) * 2016-03-11 2018-03-27 衢州迪升工业设计有限公司 一种等离子体系统
CN105567328B (zh) * 2016-03-11 2018-03-16 衢州迪升工业设计有限公司 等离子体热解系统
CN108430148B (zh) * 2018-03-30 2023-09-05 山东辰跃节能科技有限公司 一种等离子发生器
CN109057972B (zh) * 2018-07-24 2019-08-02 中国人民解放军空军工程大学 一种预燃式航空发动机等离子体点火器
CN114340127B (zh) * 2020-09-29 2024-04-30 新奥科技发展有限公司 一种等离子发生器的阴极结构、电极机构和等离子发生器

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4725447A (en) * 1984-09-27 1988-02-16 Regents Of The University Of Minnesota Method of utilizing a plasma column
US6215091B1 (en) * 1998-06-03 2001-04-10 Korea Accelerator And Plasma Research Association Plasma torch
CN2521510Y (zh) * 2002-02-06 2002-11-20 烟台龙源电力技术有限公司 一种直接点燃煤粉锅炉的等离子体点火装置
CN1448223A (zh) * 2003-04-28 2003-10-15 西安交通大学 空心阴极中心轴向送粉等离子喷涂枪

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1315821A (zh) * 2000-03-27 2001-10-03 烟台开发区龙源电力燃烧控制有限公司 等离子发生器的长寿命阳极
CN2722561Y (zh) * 2004-09-01 2005-08-31 王忠义 一种空气等离子体发生器的长寿命阴极
CN201054466Y (zh) * 2007-04-25 2008-04-30 烟台龙源电力技术有限公司 等离子发生器的联合式双阴极

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4725447A (en) * 1984-09-27 1988-02-16 Regents Of The University Of Minnesota Method of utilizing a plasma column
US6215091B1 (en) * 1998-06-03 2001-04-10 Korea Accelerator And Plasma Research Association Plasma torch
CN2521510Y (zh) * 2002-02-06 2002-11-20 烟台龙源电力技术有限公司 一种直接点燃煤粉锅炉的等离子体点火装置
CN1448223A (zh) * 2003-04-28 2003-10-15 西安交通大学 空心阴极中心轴向送粉等离子喷涂枪

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102123558A (zh) * 2010-12-22 2011-07-13 武汉天和技术股份有限公司 长寿命内空式阴极双压缩等离子体发生装置
WO2018236662A1 (fr) * 2017-06-20 2018-12-27 The Esab Group Inc. Électrode électromécanique à actionnement linéaire
US10616988B2 (en) 2017-06-20 2020-04-07 The Esab Group Inc. Electromechanical linearly actuated electrode

Also Published As

Publication number Publication date
CN101296551B (zh) 2011-03-30
CN101296551A (zh) 2008-10-29

Similar Documents

Publication Publication Date Title
WO2008131606A1 (fr) Cathodes doubles combinées de générateur de plasma
RU2260155C2 (ru) Составной катод и устройство для плазменного поджига, в котором используется составной катод
CN102938349B (zh) 高压气体断路器
EP3277061B1 (fr) Torche à plasma présentant une structure permettant une opération de polarité inversée/normale
CN105282952A (zh) 500kw磁稳非转移弧等离子发生器
CN203645904U (zh) 一种等离子炬旋转炬头装置
CN108770172B (zh) 一种用于危险废弃物处理的直流电弧等离子体炬
CN107949140A (zh) 一种弹簧引弧式等离子燃烧器
CN109600899A (zh) 一种氧焰复合等离子体炬
CN109936904A (zh) 一种分段式等离子体火炬阳极
CN106714437A (zh) 输入功率可调的双阳极电弧加热等离子体喷枪
CN104684234A (zh) 一种大功率空冷等离子发生器
CN102548178A (zh) 电弧等离子体发生器
CN201054466Y (zh) 等离子发生器的联合式双阴极
CN201904965U (zh) 电弧等离子体发生器
JP2015076395A (ja) プラズマトーチノズル
TW201328437A (zh) 具移動式磁鐵機構之電漿火炬裝置
CN105484873B (zh) 一种等离子点火器、发动机及汽车
CN209731677U (zh) 一种氧焰复合等离子体炬
CN209017350U (zh) 一种等离子发生器
CN204362408U (zh) 一种大功率空冷等离子发生器
CN209767899U (zh) 阴极和等离子体发生器
CN107702096A (zh) 一种单阳极双介质气源等离子体燃烧器
CN207720495U (zh) 一种弹簧引弧式等离子燃烧器
CN203286562U (zh) 节能型等离子煤粉点火燃烧器

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 07763994

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 07763994

Country of ref document: EP

Kind code of ref document: A1