Title:
SUPERCRITICAL WATER-VAPOR CIRCULATION SYSTEM OF CIRCULATING FLUIDIZED BED BOILER
Document Type and Number:
WIPO Patent Application WO/2017/045613
Kind Code:
A1
Abstract:
The invention relates to the field of boilers, and in particular, to a supercritical water-vapor circulation system of a circulating fluidized bed boiler. The supercritical water-vapor circulation system comprises: a water cooling wall (2); an economizer (1) configured to provide water to the water cooling wall (2); a pressure balance pipeline (7); and an economizer bypass pipe (5). The pressure balance pipeline (7) comprises one end connected via a valve to an outlet of the economizer (1) or to a pipeline or equipment communicated with the outlet of the economizer (1), and another end connected to a pipeline or equipment between an outlet of the water cooling wall (2) and a superheater system. The economizer bypass pipe (5) comprises one end connected via a valve to an inlet of the economizer (1) or to a pipeline or equipment communicated with the inlet of the economizer (1), and another end connected to an inlet of the water cooling wall (2), or to a pipeline or equipment communicated with the inlet of the water cooling wall (2). In addition, the economizer bypass pipe (5) has an inlet height exceeding an outlet height thereof. The system can effectively protect a heated surface of the water cooling wall (2) when a water supply provided to the boiler is disconnected.
Inventors:
ZHOU QI (CN)
ZHOU XU (CN)
SONG GANG (CN)
GUO QIANG (CN)
NIE LI (CN)
SU HU (CN)
GONG LIMING (CN)
LI GUO (CN)
WU CHAOGANG (CN)
CHENG WEI (CN)
HU SHILEI (CN)
ZHOU XU (CN)
SONG GANG (CN)
GUO QIANG (CN)
NIE LI (CN)
SU HU (CN)
GONG LIMING (CN)
LI GUO (CN)
WU CHAOGANG (CN)
CHENG WEI (CN)
HU SHILEI (CN)
Application Number:
PCT/CN2016/099041
Publication Date:
March 23, 2017
Filing Date:
September 14, 2016
Export Citation:
Assignee:
DONGFANG BOILER GROUP CO LTD (CN)
International Classes:
F22D1/00; F22B29/06
Foreign References:
| CN105114937A | 2015-12-02 | |||
| CN205048418U | 2016-02-24 | |||
| CN104879743A | 2015-09-02 | |||
| CN202647714U | 2013-01-02 | |||
| CN204593350U | 2015-08-26 | |||
| JP2005207259A | 2005-08-04 | |||
| JP2011196646A | 2011-10-06 |
Attorney, Agent or Firm:
CHENGDU JIUDINGTIANYUAN INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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