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Title:
SOLID FUEL BURNER AND FLAME STABILIZER FOR SOLID FUEL BURNER
Document Type and Number:
WIPO Patent Application WO/2019/131335
Kind Code:
A1
Abstract:
A solid fuel burner (1) is provided with: a guide member (34) arranged on an outer circumferential section of a distal end of a first gas nozzle (10) so as to guide a fluid flowing through a second flow passage (11a) outward in a radial direction; and a contraction forming member (50) that is arranged on an upstream side of the guide member (34) with respect to the flow direction of the second flow passage (11a) so as to reduce the cross sectional area of the second flow passage (11a). An outer diameter (L2) of the guide member (34) is formed to be smaller than an inner diameter (L1) of an outer peripheral wall of a second gas nozzle (11). The first gas nozzle (10), the guide member (34), and the contraction forming member (50) are configured so as to be integrally attachable/detachable along an axial direction of the first gas nozzle (10) toward the outside of a furnace. As a result of the foregoing, stability of the flame and sufficient circulation flow are secured, and maintenance performance is improved.

Inventors:
TADAKUMA Satoshi (3-1, Minatomirai 3-chome, Nishi-ku, Yokohama-sh, Kanagawa 01, 〒2208401, JP)
BABA Akira (3-1, Minatomirai 3-chome, Nishi-ku, Yokohama-sh, Kanagawa 01, 〒2208401, JP)
KURAMASHI Koji (3-1, Minatomirai 3-chome, Nishi-ku, Yokohama-sh, Kanagawa 01, 〒2208401, JP)
ARUGA Takeshi (3-1, Minatomirai 3-chome, Nishi-ku, Yokohama-sh, Kanagawa 01, 〒2208401, JP)
MITO Shohei (3-1, Minatomirai 3-chome, Nishi-ku, Yokohama-sh, Kanagawa 01, 〒2208401, JP)
KITAKAZE Kosuke (3-1, Minatomirai 3-chome, Nishi-ku, Yokohama-sh, Kanagawa 01, 〒2208401, JP)
MINE Toshihiko (3-1, Minatomirai 3-chome, Nishi-ku, Yokohama-sh, Kanagawa 01, 〒2208401, JP)
Application Number:
JP2018/046599
Publication Date:
July 04, 2019
Filing Date:
December 18, 2018
Export Citation:
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Assignee:
MITSUBISHI HITACHI POWER SYSTEMS, LTD. (3-1 Minatomirai 3-chome, Nishi-ku Yokohama-sh, Kanagawa 01, 〒2208401, JP)
International Classes:
F23D1/00; F23C99/00
Attorney, Agent or Firm:
KAMEI Takeyuki (Nishishimbashi bldg, 3-4-1 Nishishimbashi Minato-ku Tokyo, 03, 〒1050003, JP)
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