JPS56162320A - Controller for amount of induced draft of balanced draft type boiler - Google Patents
Controller for amount of induced draft of balanced draft type boilerInfo
- Publication number
- JPS56162320A JPS56162320A JP6392580A JP6392580A JPS56162320A JP S56162320 A JPS56162320 A JP S56162320A JP 6392580 A JP6392580 A JP 6392580A JP 6392580 A JP6392580 A JP 6392580A JP S56162320 A JPS56162320 A JP S56162320A
- Authority
- JP
- Japan
- Prior art keywords
- idf
- damper
- controlled
- revolution
- draft
- 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 inhibit the reduction of the efficiency of an induced draft fan (IDF) by the throttling of an IDF damper and improve the efficiency of a boiler by a method wherein the number of revolution of the IDF is controlled and the amount of induced draft is controlled when the variation of load is small.
CONSTITUTION: In a balanced draft type boiler, air by a forced draft fan (FDF) 1 is preheated 2, 3, and pushed into a furnace 4, and combustion gas in the furnace 6 is induced by means of an IDF6, and discharged from a chimney 7. In this case, FDF inlet valve driving devices C and IDF damper 9 driving devices D are controlled according to conventional methods, but a function generator 21 is newly mounted which sets the prearranged number of revolution of the IDF6 on the basis of air amount command signals 10. A subtracter 22 is installed which computes deviation between the prearranged opening of the damper 9 and the opening command of the damper 9, and the output is integrated 23 and added to an adder 24 as revolution number correcting signals. IDF revolution number controlling deiving devices E are controlled by the output of the adder 24 through automatic-manual changers 25.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6392580A JPS56162320A (en) | 1980-05-16 | 1980-05-16 | Controller for amount of induced draft of balanced draft type boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6392580A JPS56162320A (en) | 1980-05-16 | 1980-05-16 | Controller for amount of induced draft of balanced draft type boiler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56162320A true JPS56162320A (en) | 1981-12-14 |
| JPS6217126B2 JPS6217126B2 (en) | 1987-04-16 |
Family
ID=13243398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6392580A Granted JPS56162320A (en) | 1980-05-16 | 1980-05-16 | Controller for amount of induced draft of balanced draft type boiler |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56162320A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6276929B1 (en) | 1997-09-03 | 2001-08-21 | Ngk Insulators, Ltd. | Method for controlling kiln pressure |
| JP2021021512A (en) * | 2019-07-25 | 2021-02-18 | 住友金属鉱山株式会社 | Method of controlling pressure in furnace |
-
1980
- 1980-05-16 JP JP6392580A patent/JPS56162320A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6276929B1 (en) | 1997-09-03 | 2001-08-21 | Ngk Insulators, Ltd. | Method for controlling kiln pressure |
| JP2021021512A (en) * | 2019-07-25 | 2021-02-18 | 住友金属鉱山株式会社 | Method of controlling pressure in furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6217126B2 (en) | 1987-04-16 |
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