JPS63159603U - - Google Patents
Info
- Publication number
- JPS63159603U JPS63159603U JP4998187U JP4998187U JPS63159603U JP S63159603 U JPS63159603 U JP S63159603U JP 4998187 U JP4998187 U JP 4998187U JP 4998187 U JP4998187 U JP 4998187U JP S63159603 U JPS63159603 U JP S63159603U
- Authority
- JP
- Japan
- Prior art keywords
- boiler
- predetermined
- valve
- pulse
- throttle valve
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Description
第１図はボイラ絞り弁パルス開許容ロジツクを
示す図、第２図はボイラ絞り弁パルス閉許容ロジ
ツクを示す図、第３図および第４図はランピング
制御時およびデランピング制御時の各弁および水
冷壁出口圧力の挙動を示す図、第５図は本考案装
置が適用される超臨界圧貫流ボイラの給水、蒸気
系統を示す図、第６図は従来のランピング制御時
における各弁および水冷壁出口圧力の挙動を示す
図である。
１……エコノマイザ、２……混合球、３……ボ
イラ循環ポンプ、４……水冷壁、５……入口ヘツ
ダ、６……ボイラ抽気バイパス弁（ＢＥＢ弁）、
７……ボイラ抽気弁（ＢＥ弁）、８……ウオータ
セパレータ、９……ボイラ送気弁（ＳＡ弁）、１
０……出口ヘツダ、１１……過熱器、１２，１３
……ボイラ絞りバイパス弁（ＢＴＢ弁）、１４，
１５，１６，１７……ボイラ絞り弁（ＢＴ弁）、
１８……圧力発信器、１９……自動プラント制御
器（ＡＰＣ）。
Figure 1 is a diagram showing the boiler throttle valve pulse opening permission logic, Figure 2 is a diagram showing the boiler throttle valve pulse closing permission logic, and Figures 3 and 4 are each valve and water cooling during ramping control and de-ramping control. Figure 5 is a diagram showing the behavior of wall outlet pressure. Figure 5 is a diagram showing the water supply and steam system of a supercritical pressure once-through boiler to which the device of the present invention is applied. Figure 6 is a diagram showing each valve and water-cooled wall outlet during conventional ramping control. It is a figure showing the behavior of pressure. 1...Economizer, 2...Mixing bulb, 3...Boiler circulation pump, 4...Water cooling wall, 5...Inlet header, 6...Boiler bleed air bypass valve (BEB valve),
7... Boiler bleed valve (BE valve), 8... Water separator, 9... Boiler air supply valve (SA valve), 1
0... Outlet header, 11... Superheater, 12, 13
...Boiler throttle bypass valve (BTB valve), 14,
15, 16, 17... Boiler throttle valve (BT valve),
18...Pressure transmitter, 19...Automatic plant controller (APC).
Claims (1)
ピング制御およびユニツト停止時のデランピング
制御を備えたプラント制御装置において、ボイラ
絞りバイパス弁が所定開度以上であつて水冷壁出
口圧力が所定偏差以上の状態が所定時間以上持続
した時にボイラ絞り弁パルス開許容を指命する第
１のタイマおよび論理積装置と、ボイラ絞りバイ
パス弁が所定開度以下であつて水冷壁出口圧力が
所定偏差以上の状態が所定時間以上持続した時に
ボイラ絞り弁パルス閉許容を指命する第２のタイ
マおよび論理積装置とを備えていることを特徴と
する超臨界圧ボイラのプラント制御装置。 In a plant control system equipped with ramping control at the time of unit startup and de-ramping control at unit stop in a supercritical pressure boiler, a state in which the boiler throttle bypass valve is at a predetermined opening or more and the water cooling wall outlet pressure is at least a predetermined deviation is a predetermined condition. a first timer and a logical product device that instructs the boiler throttle valve pulse to be opened when the pulse continues for a period of time or more; and a state in which the boiler throttle bypass valve is at a predetermined opening degree or less and the water cooling wall outlet pressure is a predetermined deviation or more for a predetermined time period. 1. A plant control device for a supercritical pressure boiler, comprising: a second timer and a logical product device that instructs permission to close the boiler throttle valve pulse when the boiler throttle valve pulse continues for more than 10 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4998187U JPS63159603U (en) | 1987-04-03 | 1987-04-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4998187U JPS63159603U (en) | 1987-04-03 | 1987-04-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63159603U true JPS63159603U (en) | 1988-10-19 |
Family
ID=30872930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4998187U Pending JPS63159603U (en) | 1987-04-03 | 1987-04-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63159603U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007271189A (en) * | 2006-03-31 | 2007-10-18 | Tokyo Electric Power Co Inc:The | Control device and control method for steam power generation facility |
-
1987
- 1987-04-03 JP JP4998187U patent/JPS63159603U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007271189A (en) * | 2006-03-31 | 2007-10-18 | Tokyo Electric Power Co Inc:The | Control device and control method for steam power generation facility |
| JP4670707B2 (en) * | 2006-03-31 | 2011-04-13 | 東京電力株式会社 | Control apparatus and control method for steam power plant |
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