JPS5795507A - Operation of combustion furnace - Google Patents
Operation of combustion furnaceInfo
- Publication number
- JPS5795507A JPS5795507A JP55170237A JP17023780A JPS5795507A JP S5795507 A JPS5795507 A JP S5795507A JP 55170237 A JP55170237 A JP 55170237A JP 17023780 A JP17023780 A JP 17023780A JP S5795507 A JPS5795507 A JP S5795507A
- Authority
- JP
- Japan
- Prior art keywords
- burner
- recirculating
- gas
- furnace
- exhaust gas
- 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
Landscapes
- Combustion Of Fluid Fuel (AREA)
- Regulation And Control Of Combustion (AREA)
Abstract
PURPOSE: To reduce NOx originating from a burner by recirculating a part of exhaust gas via a burner throat, when a boiler is put in start-up or low-load operation, in the combustion furnace equipped with the burner, burner throat and the exhaust gas recirculating system.
CONSTITUTION: A boiler 1 has its furnace 2 provided with a burner 3 and a burner throat 4 as well as its top with an exhaust gas flue 6. Recirculating gas is led to gas recirculating duct 7 which brances off from the exhaust gas flue 6 to a gas recirculating fan inlet damper 10A, a furnace bottom inlet damper 11 and finally to the furnace 2. When the boiler 1 is put in start-up or low-load operation, a part of the recirculating gas from the gas recirculating fan 9 is sent to branch duct 8 to be pressure-fed via a fan 10 into a wind box 5 and then into the furnace 2 via the burner throat 4. With this, the gas velocity necessary for the burner throat 4 is secured to enable reduction in NOx originating from the burner 3.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55170237A JPS5795507A (en) | 1980-12-04 | 1980-12-04 | Operation of combustion furnace |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55170237A JPS5795507A (en) | 1980-12-04 | 1980-12-04 | Operation of combustion furnace |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5795507A true JPS5795507A (en) | 1982-06-14 |
JPH0117045B2 JPH0117045B2 (en) | 1989-03-28 |
Family
ID=15901203
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55170237A Granted JPS5795507A (en) | 1980-12-04 | 1980-12-04 | Operation of combustion furnace |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5795507A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59137707A (en) * | 1983-01-25 | 1984-08-07 | Babcock Hitachi Kk | Boiler device |
JP2013221639A (en) * | 2012-04-13 | 2013-10-28 | Mitsubishi Heavy Ind Ltd | Combustion device for boiler |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53438A (en) * | 1976-06-23 | 1978-01-06 | Babcock Hitachi Kk | Combustion method and apparatus |
JPS5520123A (en) * | 1978-07-17 | 1980-02-13 | Nippon Pirooburotsuku Seizou K | Crack detector for bottle head |
-
1980
- 1980-12-04 JP JP55170237A patent/JPS5795507A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53438A (en) * | 1976-06-23 | 1978-01-06 | Babcock Hitachi Kk | Combustion method and apparatus |
JPS5520123A (en) * | 1978-07-17 | 1980-02-13 | Nippon Pirooburotsuku Seizou K | Crack detector for bottle head |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59137707A (en) * | 1983-01-25 | 1984-08-07 | Babcock Hitachi Kk | Boiler device |
JPH0343523B2 (en) * | 1983-01-25 | 1991-07-02 | Babcock Hitachi Kk | |
JP2013221639A (en) * | 2012-04-13 | 2013-10-28 | Mitsubishi Heavy Ind Ltd | Combustion device for boiler |
Also Published As
Publication number | Publication date |
---|---|
JPH0117045B2 (en) | 1989-03-28 |
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