JPS55155113A - Combustion control at combustion equipment - Google Patents
Combustion control at combustion equipmentInfo
- Publication number
- JPS55155113A JPS55155113A JP6125379A JP6125379A JPS55155113A JP S55155113 A JPS55155113 A JP S55155113A JP 6125379 A JP6125379 A JP 6125379A JP 6125379 A JP6125379 A JP 6125379A JP S55155113 A JPS55155113 A JP S55155113A
- Authority
- JP
- Japan
- Prior art keywords
- air
- flow
- fuel
- exhaust gas
- combustion
- 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
- 238000002485 combustion reaction Methods 0.000 title abstract 3
- 239000000446 fuel Substances 0.000 abstract 7
- 239000007789 gas Substances 0.000 abstract 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 3
- 239000001301 oxygen Substances 0.000 abstract 3
- 229910052760 oxygen Inorganic materials 0.000 abstract 3
Landscapes
- Regulation And Control Of Combustion (AREA)
Abstract
PURPOSE: To maintain the oxygen concentration of the exhaust gas of a combustion equipment at a preset level by determining the air-fuel ratio from the fuel flow and the desired exhaust gas oxygen concentration, and controlling the fuel flow by using the value obtained from arithmetical operations for the product obtained from the air-fuel ratio and the theoretical amount of air and the fuel flow.
CONSTITUTION: The fuel flow is detected by the second fuel-flowmeter 9, and the percentage of excess air, which is computed by a function computing element 10, is multiplied by the theoretical amount of air obtained by a computing element 12, in a multiplier 11 in order to obtain the setting air-flow. The setting air-flow is input to an air-flow controller 13 which opens and closes an air-flow control valve 15 according to the deviation between the setting air-flow and the actual air flow measured by an air flowmeter 14 of a combustion-air supply pipe 17, in order to control the supplied air flow so as to be the setpoint. The furnace pressure is kept constant by opening and closing an exhaust gas damper 16 through a controller 19 according to the deviation between the pressure detected by a pressure gauge 20 and the set pressure. Thus, a change in the oxygen concentration in exhaust gas can be restrained within the range of the value in the fuel heat quantity.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6125379A JPS55155113A (en) | 1979-05-18 | 1979-05-18 | Combustion control at combustion equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6125379A JPS55155113A (en) | 1979-05-18 | 1979-05-18 | Combustion control at combustion equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55155113A true JPS55155113A (en) | 1980-12-03 |
Family
ID=13165879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6125379A Pending JPS55155113A (en) | 1979-05-18 | 1979-05-18 | Combustion control at combustion equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55155113A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101639226B (en) | 2008-08-01 | 2011-05-11 | 中国神华能源股份有限公司 | Method for burning coal in boiler |
-
1979
- 1979-05-18 JP JP6125379A patent/JPS55155113A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101639226B (en) | 2008-08-01 | 2011-05-11 | 中国神华能源股份有限公司 | Method for burning coal in boiler |
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