JPH0245313U - - Google Patents
Info
- Publication number
- JPH0245313U JPH0245313U JP11929388U JP11929388U JPH0245313U JP H0245313 U JPH0245313 U JP H0245313U JP 11929388 U JP11929388 U JP 11929388U JP 11929388 U JP11929388 U JP 11929388U JP H0245313 U JPH0245313 U JP H0245313U
- Authority
- JP
- Japan
- Prior art keywords
- deheating
- temperature
- water amount
- signal
- water
- 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 11
- 230000000052 comparative effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
- Control Of Temperature (AREA)
Description
第１図は本考案が適用されるプラントの一例を
示す系統図、第２図は本考案の一実施例を示す制
御系統図、第３図は同じく減温水量計算機ブロツ
ク図である。
１：蒸気温度変動予測減温水量計算機、２：加
減算器、３―１，３―２，…，３―ｎ：Ｆｘ特性
変換器、４―１，４―２，…，４―ｎ：乗算器、
５―１，５―２，…，５―ｎ，６―１，６―２，
…，６―ｎ：一次遅れ演算器、７―１，７―２，
…，７―ｎ：信号切換器、８―１，８―２，…，
８―ｎ，９―１，９―２，…，９―ｎ：ＳＧ信号
発生器、１０：加減算器、１１：主蒸気温度計、
１２：主蒸気温度調節計、１３：減温水流量計、
１４：減温水量調節計、１５：減温水量制御弁、
１６：ＤＳＨ出口蒸気温度計、Ａ１，Ａ２，…，
Ａｎ：アナログ信号入力、Ｓ１，Ｓ２，…，Ｓｎ
：接点信号入力。
FIG. 1 is a system diagram showing an example of a plant to which the present invention is applied, FIG. 2 is a control system diagram showing an embodiment of the present invention, and FIG. 3 is a block diagram of a deheating water amount calculator. 1: Steam temperature fluctuation prediction deheating water amount calculator, 2: Adder/subtractor, 3-1, 3-2,..., 3-n: Fx characteristic converter, 4-1, 4-2,..., 4-n: Multiplication vessel,
5-1, 5-2,..., 5-n, 6-1, 6-2,
..., 6-n: first-order delay calculator, 7-1, 7-2,
..., 7-n: Signal switch, 8-1, 8-2, ...,
8-n, 9-1, 9-2,..., 9-n: SG signal generator, 10: Adder/subtractor, 11: Main steam temperature meter,
12: Main steam temperature controller, 13: Tempered water flow meter,
14: Deheated water volume controller, 15: Deheated water volume control valve,
16: DSH outlet steam thermometer, A 1 , A 2 ,...,
An: Analog signal input, S1, S2,..., Sn
: Contact signal input.
Claims (1)
御装置において、前記過熱器出口側の温度と設定
された制御温度とを比較制御し補正値を出力する
温度調節計と、蒸気温度の変動要因となるアナロ
グ信号および機器の状態を示す接点信号をもとに
減温水量を演算処理する減温水量計算機と、同減
温水量計算機からの減温水量信号と前記温度調節
計からの補正値とを入力して補正演算を行ない設
定信号を出力する加減算器と、減温器入口側の流
量と前記加減算器からの設定信号とにより比較演
算し実際の減温水量を制御する減温水量調節計と
を具えていることを特徴とするボイラの蒸気温度
制御装置。 A steam temperature control device equipped with a desuperheater in a boiler superheater includes a temperature controller that compares and controls the temperature at the outlet side of the superheater with a set control temperature and outputs a correction value, and steam temperature fluctuation factors. A deheating water amount calculator that calculates the amount of deheating water based on an analog signal and a contact signal indicating the status of the equipment, and a deheating water amount signal from the deheating water amount calculator and a correction value from the temperature controller. an adder/subtractor that inputs the value, performs a correction calculation, and outputs a setting signal; and a deheated water flow controller that performs a comparative calculation based on the flow rate at the inlet of the desuperheater and the set signal from the adder/subtractor to control the actual deheated water amount. A steam temperature control device for a boiler, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11929388U JPH0245313U (en) | 1988-09-13 | 1988-09-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11929388U JPH0245313U (en) | 1988-09-13 | 1988-09-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0245313U true JPH0245313U (en) | 1990-03-28 |
Family
ID=31364395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11929388U Pending JPH0245313U (en) | 1988-09-13 | 1988-09-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0245313U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8733104B2 (en) | 2009-03-23 | 2014-05-27 | General Electric Company | Single loop attemperation control |
| JP2016156516A (en) * | 2015-02-23 | 2016-09-01 | 三菱重工業株式会社 | Boiler, marine steam turbine propulsion system, ship with the same and boiler control method |
-
1988
- 1988-09-13 JP JP11929388U patent/JPH0245313U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8733104B2 (en) | 2009-03-23 | 2014-05-27 | General Electric Company | Single loop attemperation control |
| JP2016156516A (en) * | 2015-02-23 | 2016-09-01 | 三菱重工業株式会社 | Boiler, marine steam turbine propulsion system, ship with the same and boiler control method |
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