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Title:
NOZZLE WITH ADJUSTABLE INNER AND OUTER FLOW CHANNEL EQUIVALENCE RATIOS, NOZZLE ARRAY, AND BURNER
Document Type and Number:
WIPO Patent Application WO/2018/133292
Kind Code:
A1
Abstract:
A nozzle with adjustable inner and outer flow channel equivalence ratios comprises a central cylinder (6), an outer-wall cylinder (3), and a wave swirler (5). The wave swirler (5) is coaxially disposed in the outer-wall cylinder (3). The central cylinder (6) is inserted into the wave swirler (5) along the axial direction of the wave swirler (5) and through an outlet end of the wave swirler (5). The wave swirler (5) is divided into an inner-ring swirling structure (13) and an outer-ring swirling structure (14). The outer-ring swirling structure (14), the central cylinder (6), and the outer-wall cylinder (3) define an outer flow channel. The inner-ring swirling structure (13) and the central cylinder (6) define an inner flow channel. The part of the central cylinder (6) embedded in the wave swirler (5) is an embedded section. The embedded section has a non-cylindrical structure and is used to adjust an equivalence ratio of the inner and outer flow channels. The embedded section adjusts the equivalence ratio of the inner and outer flow channels, thereby reducing flame propagation speed, avoiding backfiring in the central area of an outlet of a nozzle, and increasing a nozzle backfiring margin.

Inventors:
LI GANG (CN)
XU GANG (CN)
YIN JUAN (CN)
LU XINGEN (CN)
ZHU JUNQIANG (CN)
DU WEI (CN)
MU YONG (CN)
LIU CUNXI (CN)
LIU FUQIANG (CN)
YANG JINHU (CN)
Application Number:
PCT/CN2017/087611
Publication Date:
July 26, 2018
Filing Date:
June 08, 2017
Export Citation:
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Assignee:
INST ENG THERMOPHYSICS CAS (CN)
International Classes:
F23R3/12
Foreign References:
CN106705045A2017-05-24
CN105737200A2016-07-06
US5235813A1993-08-17
CN106091008A2016-11-09
CN106016358A2016-10-12
CN101743442A2010-06-16
US20040050056A12004-03-18
JPH06330765A1994-11-29
JP2005180799A2005-07-07
Attorney, Agent or Firm:
CHINA SCIENCE PATENT & TRADEMARK AGENT LTD. (CN)
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