JPS5649805A - Load control operation for fluidized bed boiler - Google Patents
Load control operation for fluidized bed boilerInfo
- Publication number
- JPS5649805A JPS5649805A JP12401879A JP12401879A JPS5649805A JP S5649805 A JPS5649805 A JP S5649805A JP 12401879 A JP12401879 A JP 12401879A JP 12401879 A JP12401879 A JP 12401879A JP S5649805 A JPS5649805 A JP S5649805A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- fluidized bed
- cooling air
- detected
- nox
- 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.)
- Pending
Links
Landscapes
- Control Of Combustion (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
PURPOSE: To reduce a generation of NOx in response to a variation of a continuous load by a method wherein a temperature in a fluidized bed of the fluidized bed boiler is kept in a scope ranging from a stable minimum combustion temperature to a maximum temperature in preventing a generation of NOx.
CONSTITUTION: The boiler is constituted of a water-cooled wall pipe 5, a combustion chamber constituted by the fluidized bed chamber I, II, and a heat recovery unit 21 made by a vaporized water pipe and a gas flow partition plate. The temperature in the fluidized bed is detected by a fluidized bed thermometer 22 or a thermo-transmitter 19 so as not to cause a temperature in the fluidized bed to exceed NOx control temperature of 900°C, a cooling air flow adjuster valve 18 is adjusted by the detected temperature signal. Volume of cooling air corresponding to the detected temperature is fed into the cooling air box 16, introduced into the injection bed from a plurality of cooling air injection holes 17, thereby the temperature in the fluidized bed is decreased. Energization of the blower 15 is performed when either a signal from the thermometer 22 in the fluidized bed or a temperature of combustion gas outlet is detected by the temperature switch 20 and further when the temperature exceeds a specified temperature.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12401879A JPS5649805A (en) | 1979-09-28 | 1979-09-28 | Load control operation for fluidized bed boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12401879A JPS5649805A (en) | 1979-09-28 | 1979-09-28 | Load control operation for fluidized bed boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5649805A true JPS5649805A (en) | 1981-05-06 |
Family
ID=14874984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12401879A Pending JPS5649805A (en) | 1979-09-28 | 1979-09-28 | Load control operation for fluidized bed boiler |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5649805A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57184810A (en) * | 1981-05-08 | 1982-11-13 | Kawasaki Heavy Ind Ltd | Method of controlling steam pressure and steam temperature |
| JPS60142101A (en) * | 1983-12-29 | 1985-07-27 | 川崎重工業株式会社 | Operation method in case of increase of load of fluidized bed boiler |
| JPS60142102A (en) * | 1983-12-29 | 1985-07-27 | 川崎重工業株式会社 | Operation method in case of reduction of load of fluidized bed boiler |
| JPS61150919A (en) * | 1984-12-24 | 1986-07-09 | Shinko Electric Co Ltd | Two line separating device for parts |
| JPS6412018U (en) * | 1987-07-13 | 1989-01-23 | ||
| JPH06323510A (en) * | 1993-05-11 | 1994-11-25 | Kawasaki Heavy Ind Ltd | Combustion control method in fluidized bed type furnace |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5059273A (en) * | 1973-09-28 | 1975-05-22 | ||
| JPS5218501A (en) * | 1975-08-04 | 1977-02-12 | Kawasaki Heavy Ind Ltd | Load regulating method of fluidized-bed combustion boiler |
| JPS52149639A (en) * | 1976-06-08 | 1977-12-12 | Mitsubishi Heavy Ind Ltd | Fluidized reactor |
| JPS549027A (en) * | 1977-05-02 | 1979-01-23 | Appa Thermal Exchanges Ltd | Fluidized bed combustion apparatus |
-
1979
- 1979-09-28 JP JP12401879A patent/JPS5649805A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5059273A (en) * | 1973-09-28 | 1975-05-22 | ||
| JPS5218501A (en) * | 1975-08-04 | 1977-02-12 | Kawasaki Heavy Ind Ltd | Load regulating method of fluidized-bed combustion boiler |
| JPS52149639A (en) * | 1976-06-08 | 1977-12-12 | Mitsubishi Heavy Ind Ltd | Fluidized reactor |
| JPS549027A (en) * | 1977-05-02 | 1979-01-23 | Appa Thermal Exchanges Ltd | Fluidized bed combustion apparatus |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57184810A (en) * | 1981-05-08 | 1982-11-13 | Kawasaki Heavy Ind Ltd | Method of controlling steam pressure and steam temperature |
| JPH0355722B2 (en) * | 1981-05-08 | 1991-08-26 | ||
| JPS60142101A (en) * | 1983-12-29 | 1985-07-27 | 川崎重工業株式会社 | Operation method in case of increase of load of fluidized bed boiler |
| JPS60142102A (en) * | 1983-12-29 | 1985-07-27 | 川崎重工業株式会社 | Operation method in case of reduction of load of fluidized bed boiler |
| JPH0372882B2 (en) * | 1983-12-29 | 1991-11-20 | Kawasaki Heavy Ind Ltd | |
| JPH059681B2 (en) * | 1983-12-29 | 1993-02-05 | Kawasaki Heavy Ind Ltd | |
| JPS61150919A (en) * | 1984-12-24 | 1986-07-09 | Shinko Electric Co Ltd | Two line separating device for parts |
| JPS6412018U (en) * | 1987-07-13 | 1989-01-23 | ||
| JPH06323510A (en) * | 1993-05-11 | 1994-11-25 | Kawasaki Heavy Ind Ltd | Combustion control method in fluidized bed type furnace |
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