Title:
AN AC PLASMA EJECTION GUN AND ITS POWER SUPPLY METHOD AND A PULVERIZED COAL BURNER
Document Type and Number:
WIPO Patent Application WO/2009/092234
Kind Code:
A1
Abstract:
An AC plasma ejection gun and its power supply method and a pulverized coal burner
are provided. The ejection gun includes a power supply device, a front electrode
and a rear electrode which are electrically conductive. The power supply device
includes a live wire and a null line. A front chamber is set inside the front electrode.
A nozzle is set at the outlet end of the front electrode and the nozzle is connected
with the front chamber. An air inlet pipe is set at the inlet end of the front electrode
and the air inlet pipe is connected with the front chamber. Compressed air may
be injected into the front chamber through the air inlet port. The null line is
connected with the front electrode. The rear electrode is connected with the
inlet end of the front electrode by an insulating ring. There is a gap between the
front electrode and the rear electrode. The live wire is connected with the rear
electrode. Arc between the front electrode and the rear electrode discharges,
and the compressed air is ionized into plasma in the gap of the front electrode
and the rear electrode. The plasma is discharged from the nozzle via the front
chamber. The ejection gun in present invention can work with small current and
large power, so that the useful life of the plasma ejection gun is extended.
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Inventors:
ZHAO HUJUN (CN)
LI BIN (CN)
JIANG DI (CN)
CHEN GUANGRONG (CN)
ZHANG ZHAOJUN (CN)
NAN DEZHE (CN)
LI BIN (CN)
JIANG DI (CN)
CHEN GUANGRONG (CN)
ZHANG ZHAOJUN (CN)
NAN DEZHE (CN)
Application Number:
PCT/CN2008/073545
Publication Date:
July 30, 2009
Filing Date:
December 17, 2008
Export Citation:
Assignee:
BEIJING GUANGYAO ELECTRICITY E (CN)
ZHAO HUJUN (CN)
LI BIN (CN)
JIANG DI (CN)
CHEN GUANGRONG (CN)
ZHANG ZHAOJUN (CN)
NAN DEZHE (CN)
ZHAO HUJUN (CN)
LI BIN (CN)
JIANG DI (CN)
CHEN GUANGRONG (CN)
ZHANG ZHAOJUN (CN)
NAN DEZHE (CN)
International Classes:
H05H1/32; F23D1/00; H02M5/12; H02M5/16; H05H1/28; H05H1/36
Foreign References:
| CN101309546A | 2008-11-19 | |||
| CN101216183A | 2008-07-09 | |||
| CN200980199Y | 2007-11-21 | |||
| US3024350A | 1962-03-06 | |||
| CN2348962Y | 1999-11-17 | |||
| CN200961855Y | 2007-10-17 | |||
| CN1786579A | 2006-06-14 |
Other References:
CHEN Y. ET AL.: "Experimental Study on Direct Igniting Pulverized Coal by High Energy Arc", ELECTRIC POWER, June 1981 (1981-06-01), pages 54 - 56
SUN C. ET AL.: "Technical Principle and Application Research of Plasma Ignition Burner", GUANGDONG ELECTRIC POWER, vol. 18, no. 1, January 2005 (2005-01-01), pages 19 - 22
SUN C. ET AL.: "Technical Principle and Application Research of Plasma Ignition Burner", GUANGDONG ELECTRIC POWER, vol. 18, no. 1, January 2005 (2005-01-01), pages 19 - 22
Attorney, Agent or Firm:
BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD. (Corporate Square No.35 Jinrong Street, Beijing 0, CN)
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