Title:
SUPERCRITICAL CO2 BOILER CAPABLE OF REALIZING UNIFORM COMBUSTION, CORROSION RESISTANCE, AND COKING RESISTANCE, AND BOILER SYSTEM
Document Type and Number:
WIPO Patent Application WO/2022/057184
Kind Code:
A1
Abstract:
A supercritical CO2 boiler and a boiler system. The boiler comprises a main combustion chamber (2), an upper hearth (3), a furnace arch (4), and a flue; the cross section of the main combustion chamber (2) is circular, oval, or N-sided, and N>4; the main combustion chamber (2) is provided with at least four combustor groups; each group of combustor nozzles corresponding to each combustor group comprise a recirculating air nozzle (15), a primary air nozzle (13), and a secondary air nozzle (14); side recirculating air nozzles (16) which are symmetrically distributed are provided on the two sides of each primary air nozzle (13); the recirculating air nozzles (15) and the side recirculating air nozzles (16) are used for feeding recirculating flue gas or mixed gas of the recirculating flue gas and secondary air into the main combustion chamber (2); the primary air nozzles (13) are used for feeding primary air or mixed gas of the primary air and the recirculating flue gas into the main combustion chamber (2); and the secondary air nozzles (14) are used for feeding secondary air or mixed gas of the secondary air and the recirculating flue gas into the main combustion chamber (2), such that the load of the supercritical CO2 boiler and the load of the boiler system are uniform, and high-temperature corrosion, coking and slagging on the wall surface of the boiler are avoided.
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Inventors:
XIANG JUN (CN)
ZHU MENG (CN)
ZHOU JING (CN)
CHEN LEI (CN)
SU SHENG (CN)
XU JUN (CN)
LI AISHU (CN)
HU SONG (CN)
WANG YI (CN)
JIANG LONG (CN)
HAN HENGDA (CN)
ZHU MENG (CN)
ZHOU JING (CN)
CHEN LEI (CN)
SU SHENG (CN)
XU JUN (CN)
LI AISHU (CN)
HU SONG (CN)
WANG YI (CN)
JIANG LONG (CN)
HAN HENGDA (CN)
Application Number:
PCT/CN2021/073313
Publication Date:
March 24, 2022
Filing Date:
January 22, 2021
Export Citation:
Assignee:
UNIV HUAZHONG SCIENCE TECH (CN)
International Classes:
F23C5/32
Domestic Patent References:
| WO1998054513A1 | 1998-12-03 |
Foreign References:
| CN112161261A | 2021-01-01 | |||
| CN111550771A | 2020-08-18 | |||
| CN111664444A | 2020-09-15 | |||
| CN110260299A | 2019-09-20 | |||
| CN102927561A | 2013-02-13 | |||
| CN108916864A | 2018-11-30 |
Attorney, Agent or Firm:
KEYCOM PARTNERS, P.C. (CN)
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