JPS5762323A - Method and apparatus for controlling amount of air around mill in coal fired power plant - Google Patents
Method and apparatus for controlling amount of air around mill in coal fired power plantInfo
- Publication number
- JPS5762323A JPS5762323A JP13762280A JP13762280A JPS5762323A JP S5762323 A JPS5762323 A JP S5762323A JP 13762280 A JP13762280 A JP 13762280A JP 13762280 A JP13762280 A JP 13762280A JP S5762323 A JPS5762323 A JP S5762323A
- Authority
- JP
- Japan
- Prior art keywords
- amount
- mill
- air
- coal
- dynamic characteristic
- 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 enable to control the amount of air at a satisfactory air-fuel ratio by controlling the amount of air through the amount of pulverized coal at a burner inlet which is obtaind from a coal mill dynamic characteristic model, in controlling the amount of air around a mill taking the dynamic characteristic delay of the mill.
CONSTITUTION: In a pulverized coal fired boiler, the amount 41 of the pulverized coal at the burner inlet is delayed by several minutes with reference to a mill master signal 27, so that an excess of air exists transiently. Therefore, a coal feeder command signal 29 is reduced into the amount 41 of pulverized coal at the burner inlet which is predicated on the basis of the coal mill dynamic characteristic model 40 using the primary air pressure difference and the mill pressure difference as parameters, and a damper for secondary air is controlled using the reduced value as a set point signal for a recording controller for compartment secondary air flow rate. In addition, the dynamic characteristic model 40 is sequentially corrected in accordance with the deviation of the actual proces amount of the mill from the process amount calculated based on the model.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13762280A JPS5762323A (en) | 1980-10-03 | 1980-10-03 | Method and apparatus for controlling amount of air around mill in coal fired power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13762280A JPS5762323A (en) | 1980-10-03 | 1980-10-03 | Method and apparatus for controlling amount of air around mill in coal fired power plant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5762323A true JPS5762323A (en) | 1982-04-15 |
| JPH0118326B2 JPH0118326B2 (en) | 1989-04-05 |
Family
ID=15202967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13762280A Granted JPS5762323A (en) | 1980-10-03 | 1980-10-03 | Method and apparatus for controlling amount of air around mill in coal fired power plant |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5762323A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58205019A (en) * | 1982-05-26 | 1983-11-29 | Babcock Hitachi Kk | Combustion controller for coal |
| CN107191914A (en) * | 2017-07-17 | 2017-09-22 | 武汉智凯科技有限公司 | Boiler on-line tuning system and method based on as-fired coal information and fire defector |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3556616B2 (en) * | 2001-06-07 | 2004-08-18 | 川崎重工業株式会社 | Adaptive control method and apparatus in pulverized coal mill |
| EP4108451A4 (en) | 2020-02-18 | 2024-02-28 | Shinetsu Chemical Co | Silicone composition for producing release paper or release film, and release paper and release film |
-
1980
- 1980-10-03 JP JP13762280A patent/JPS5762323A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58205019A (en) * | 1982-05-26 | 1983-11-29 | Babcock Hitachi Kk | Combustion controller for coal |
| JPH0255685B2 (en) * | 1982-05-26 | 1990-11-28 | Babcock Hitachi Kk | |
| CN107191914A (en) * | 2017-07-17 | 2017-09-22 | 武汉智凯科技有限公司 | Boiler on-line tuning system and method based on as-fired coal information and fire defector |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0118326B2 (en) | 1989-04-05 |
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