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Patent Searching and Data


Title:
SPOT BURNER
Document Type and Number:
Japanese Patent JP2011117636
Kind Code:
A
Abstract:

To suppress breakage of a spot burner due to thermal corrosion and thermal stress for extending the lifetime of the spot burner and reducing a maintenance cost.

A nozzle inner pipe 102 having a gas injection hole 56 is concentrically provided in a nozzle outer pipe 101 and an edge surface 106a. The spot burner has a double pipe structure in which a gap 103 is formed between the nozzle inner pipe and the nozzle outer pipe. The nozzle inner pipe of the spot burner 34 is supplied with fuel gas, and the gap is supplied with cooling air. At least an edge of the nozzle inner pipe is made of a corrosion resistance material.


Inventors:
TAMURA MASAHITO
WATANABE SHINJI
ITOKAZU RYUNOSUKE
KUROSE TAKAO
Application Number:
JP2009273877A
Publication Date:
June 16, 2011
Filing Date:
December 01, 2009
Export Citation:
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Assignee:
IHI CORP
International Classes:
F23D14/78
Domestic Patent References:
JPH0292424U1990-07-23
JPH07228941A1995-08-29
JPH11209841A1999-08-03
JP2000161615A2000-06-16
JP2004316789A2004-11-11
JP2008111591A2008-05-15
JP2005226867A2005-08-25
JPS6423004A1989-01-25
JP2005214441A2005-08-11
JPS59112240A1984-06-28
Foreign References:
US6814570B12004-11-09
US5307635A1994-05-03
Attorney, Agent or Firm:
Shoji Miyoshi