JPS6454116A - Furnace wall tube wear preventing device - Google Patents
Furnace wall tube wear preventing deviceInfo
- Publication number
- JPS6454116A JPS6454116A JP21227187A JP21227187A JPS6454116A JP S6454116 A JPS6454116 A JP S6454116A JP 21227187 A JP21227187 A JP 21227187A JP 21227187 A JP21227187 A JP 21227187A JP S6454116 A JPS6454116 A JP S6454116A
- Authority
- JP
- Japan
- Prior art keywords
- furnace wall
- wall tube
- fluidized
- wear
- fluidized medium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
PURPOSE:To prevent a furnace wall tube from wear and to improve the workability at the time of extracting a fluidized medium by making it possible to secure a proper fluidity of the fluidized medium without reducing a heat absorption area of the furnace wall tube in the furnace wall tube wear preventive device of a fluidized-bed boiler. CONSTITUTION:Wear preventive plates 14 are welded to a furnace wall tube 12 at a certain inclination angle which is greater than the angle of repose of a fluidized medium 9 and in a zigzag shape. The interval between the furnace wall tube 12 and inside layer heat transfer tubes 13 is constituted to be narrower than the interval between the heat transfer tube groups 13. Consequently, the fluidized medium 9 flows while making contact with the inside layer heat transfer tubes 13 at the central part of the layer to transfer hart. Further, in the vicinity of the furnace wall tube 12, the flow speed of the fluidized medium is suppressed by the wear preventive plate 14, and flows in a zigzag manner along the angle of inclination of the plate 14 to transfer heat to the furnace wall tube 12. On the other hand, the operation of the fluidized-bed boiler is stopped, and when the fluidized medium 9 is extracted, the fluidized-bed medium 9 falls down along the wear preventive plates 14 inclined more than the angle of repose as if it wear rolling thereon.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62212271A JP2710936B2 (en) | 1987-08-26 | 1987-08-26 | Fluidized bed boiler |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62212271A JP2710936B2 (en) | 1987-08-26 | 1987-08-26 | Fluidized bed boiler |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6454116A true JPS6454116A (en) | 1989-03-01 |
JP2710936B2 JP2710936B2 (en) | 1998-02-10 |
Family
ID=16619828
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62212271A Expired - Fee Related JP2710936B2 (en) | 1987-08-26 | 1987-08-26 | Fluidized bed boiler |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2710936B2 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002228101A (en) * | 2001-01-26 | 2002-08-14 | Ishikawajima Harima Heavy Ind Co Ltd | Friction reducer of tube immersed in fluidized bed |
CN102242928A (en) * | 2011-05-04 | 2011-11-16 | 中国华能集团清洁能源技术研究院有限公司 | Decelerating wear-resisting device and boiler furnace equipped therewith |
CN103185337A (en) * | 2013-04-02 | 2013-07-03 | 刘少光 | Anti-abrasion and attrition-reducible circulating fluidized bed boiler |
CN103742900A (en) * | 2014-01-23 | 2014-04-23 | 北京一亚高科能源科技有限公司 | Anti-abrasion water wall tube panel |
CN104121580A (en) * | 2013-04-24 | 2014-10-29 | 荏原环境工程株式会社 | In-bed heat transfer tube for fluidized bed boiler, and fluidized bed boiler |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56162430U (en) * | 1980-05-02 | 1981-12-03 | ||
JPS6191795U (en) * | 1984-11-19 | 1986-06-14 | ||
JPS61198814U (en) * | 1985-05-27 | 1986-12-12 |
-
1987
- 1987-08-26 JP JP62212271A patent/JP2710936B2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56162430U (en) * | 1980-05-02 | 1981-12-03 | ||
JPS6191795U (en) * | 1984-11-19 | 1986-06-14 | ||
JPS61198814U (en) * | 1985-05-27 | 1986-12-12 |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002228101A (en) * | 2001-01-26 | 2002-08-14 | Ishikawajima Harima Heavy Ind Co Ltd | Friction reducer of tube immersed in fluidized bed |
CN102242928A (en) * | 2011-05-04 | 2011-11-16 | 中国华能集团清洁能源技术研究院有限公司 | Decelerating wear-resisting device and boiler furnace equipped therewith |
CN103185337A (en) * | 2013-04-02 | 2013-07-03 | 刘少光 | Anti-abrasion and attrition-reducible circulating fluidized bed boiler |
CN104121580A (en) * | 2013-04-24 | 2014-10-29 | 荏原环境工程株式会社 | In-bed heat transfer tube for fluidized bed boiler, and fluidized bed boiler |
CN104121580B (en) * | 2013-04-24 | 2019-04-09 | 荏原环境工程株式会社 | The layer inner heat-conductive pipe and fluid bed furnace of fluid bed furnace |
CN103742900A (en) * | 2014-01-23 | 2014-04-23 | 北京一亚高科能源科技有限公司 | Anti-abrasion water wall tube panel |
CN103742900B (en) * | 2014-01-23 | 2015-12-09 | 北京一亚高科能源科技有限公司 | A kind of Anti-abrasion water wall tube panel |
Also Published As
Publication number | Publication date |
---|---|
JP2710936B2 (en) | 1998-02-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |