Title:
INTERNALLY RECIRCULATING PRESSURIZED OXY-FUEL COMBUSTOR
Document Type and Number:
WIPO Patent Application WO/2020/067747
Kind Code:
A1
Abstract:
The present invention relates to an internally recirculating pressurized oxy-fuel combustor, comprising: an outer wall; an inner wall which is provided inside the outer wall and defines an inner space; a burner which is provided at the lower part of the outer wall and positioned at the inner center of the inner wall and burns fuel and an oxidant; exhaust units which are provided at the lower part of the outer wall and positioned inside the inner wall and in the vicinity of the burner and discharge exhaust gas to the outside; heat transfer media which are solid spherical substances located between the outer wall and the inner wall and store the heat energy of exhaust gas and use same for heat exchange; and pipes which are provided between the outer wall and the inner wall and produce steam by means of heat exchange, wherein the inner wall has an open top and a through-hole, which is at the bottom thereof and via which gases can pass through, so that the exhaust gas generated by the combustion of the burner moves upwards inside the inner wall, then moves down along the space between the outer wall and the inner wall, and then moves to the inside of the inner wall, some of the exhaust gas that has moved to the inside of the inner wall is discharged via the exhaust units, the remainder of same recirculates the inside, and the fuel and oxidant injected into the burner are preheated by means of the recirculating exhaust gas.
Inventors:
LEE YOUNGJAE (KR)
KIM DONG-HEE (KR)
AHN HYUNGJUN (KR)
LEE UENDO (KR)
YANG WON (KR)
KIM DONG-HEE (KR)
AHN HYUNGJUN (KR)
LEE UENDO (KR)
YANG WON (KR)
Application Number:
PCT/KR2019/012556
Publication Date:
April 02, 2020
Filing Date:
September 27, 2019
Export Citation:
Assignee:
KOREA INST IND TECH (KR)
International Classes:
F23C9/00; F23L7/00
Foreign References:
| KR0161049B1 | 1999-01-15 | |||
| JPH04356604A | 1992-12-10 | |||
| JPH07208708A | 1995-08-11 | |||
| JP2007078331A | 2007-03-29 | |||
| US20090120338A1 | 2009-05-14 |
Attorney, Agent or Firm:
DAWOOL PATENT AND LAW FIRM (KR)
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