WATER PIPE PROTECTING REFRACTORY STRUCTURE

Title:

WATER PIPE PROTECTING REFRACTORY STRUCTURE

Document Type and Number:

WIPO Patent Application WO/1998/005901

Kind Code:

A1

Abstract:

A boiler water pipe protecting refractory structure comprising a refractory interposed between a boiler water pipe and a combustion gas is provided as a refractory structure capable of reducing thermal stress without increasing the wall thickness of refractory blocks, and improving the durability of mounting members by preventing the occurrence of high-temperature corrosion thereof, and having a high heat transfer efficiency. The characteristics of this structure reside in that the structure is provided with a refractory block (16) which has an arcuate portion (16a) and a connecting portion (16b) engaged at inner circumferences thereof with the boiler water pipe (11), and a locking recess (17, 58, 68) and locking projection (18, 59, 69) formed on the boiler water pipe (11) respectively as fixing means for detachably engaging the refractory block and boiler water pipe with each other.

Inventors:

ORITA NORIHIKO (JP)
NAKAGAWA YUJI (JP)
TAKAISHI TAKEO (JP)
TAKAHASHI TETSUO (JP)
GOTO CHUHACHI (JP)
KAWAHARA YUZO (JP)
IKE MINORU (JP)
TERASHIMA YASUHIRO (JP)
INOUE KEITA (JP)

Application Number:

PCT/JP1997/002626

Publication Date:

February 12, 1998

Filing Date:

July 29, 1997

Export Citation:

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Assignee:

MITSUBISHI HEAVY IND LTD (JP)
ORITA NORIHIKO (JP)
NAKAGAWA YUJI (JP)
TAKAISHI TAKEO (JP)
TAKAHASHI TETSUO (JP)
GOTO CHUHACHI (JP)
KAWAHARA YUZO (JP)
IKE MINORU (JP)
TERASHIMA YASUHIRO (JP)
INOUE KEITA (JP)

International Classes:

F22B37/10; F23M5/04; F23M5/08; (IPC1-7): F22B37/10

Foreign References:

JPH01106706U	1989-07-18
JPH0236704U	1990-03-09
JPS61173006A	1986-08-04
JPH0321607U	1991-03-05
JPH0366481Z
JPH0513428Y2	1993-04-08
JPH02203194A	1990-08-13
JPH04227401A	1992-08-17

Other References: