JPH0184029U - - Google Patents
Info
- Publication number
- JPH0184029U JPH0184029U JP1987179652U JP17965287U JPH0184029U JP H0184029 U JPH0184029 U JP H0184029U JP 1987179652 U JP1987179652 U JP 1987179652U JP 17965287 U JP17965287 U JP 17965287U JP H0184029 U JPH0184029 U JP H0184029U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- turbine
- steam
- flow rate
- function generator
- 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
Landscapes
- Control Of Turbines (AREA)
Description
第１図は本考案の一実施例としての蒸気流量計
診断装置のブロツク図、第２図は診断論理を示す
図、第３図は蒸気流量計の選択論理を示す図であ
る。
１……負荷遮断信号、２……設定値、３……設
定値、６……バイアス、１０……タービンバイパ
ス制御信号、１１，１２……タービンバイパス弁
モデル、１３，１４……関数発生器、１５……高
値選択回路、１６……低値選択回路、１７……上
限信号、１８……下限信号、１９……主蒸気ライ
ン圧力信号、２０……タービン初段圧力信号、２
１……関数発生器、２２……タービン通過蒸気流
量信号、３０……蒸気流量信号＃１、３１……蒸
気流量信号＃２、３２……診断回路。
FIG. 1 is a block diagram of a steam flow meter diagnostic device as an embodiment of the present invention, FIG. 2 is a diagram showing diagnosis logic, and FIG. 3 is a diagram showing selection logic of a steam flow meter. 1...Load cutoff signal, 2...Setting value, 3...Setting value, 6...Bias, 10...Turbine bypass control signal, 11, 12...Turbine bypass valve model, 13, 14...Function generator , 15... High value selection circuit, 16... Low value selection circuit, 17... Upper limit signal, 18... Lower limit signal, 19... Main steam line pressure signal, 20... Turbine first stage pressure signal, 2
1...Function generator, 22...Turbine passing steam flow rate signal, 30...Steam flow rate signal #1, 31...Steam flow rate signal #2, 32...Diagnostic circuit.
Claims (1)
ス装置と、タービンバイパス制御信号および主蒸
気ライン圧力信号を用いて蒸気流量を計算する並
置された関数発生器と、これらの関数発生器にそ
れぞれ接続された高値選択回路および低値選択回
路と、タービン初段圧力信号からタービン通過蒸
気流量信号を計算する関数発生器と、蒸気流量信
号と前記バイアス装置、前記高値および低値選択
回路、ならびに前記タービン通過蒸気流量信号を
計算する関数発生器の各出力信号に基いて得られ
る上限信号および下限信号とを入力して異常を診
断する診断回路とを具備してなることを特徴とす
るタービン主蒸気系の蒸気流量計の診断装置。 a bias device for selecting a setpoint using the load dump signal, and a juxtaposed function generator for calculating steam flow using the turbine bypass control signal and the main steam line pressure signal, respectively connected to the function generators. a high value selection circuit and a low value selection circuit; a function generator that calculates a turbine passing steam flow rate signal from a turbine first stage pressure signal; a steam flow rate signal and the bias device; Steam for a turbine main steam system, characterized in that it is equipped with a diagnostic circuit that diagnoses an abnormality by inputting an upper limit signal and a lower limit signal obtained based on each output signal of a function generator that calculates a flow rate signal. Flow meter diagnostic device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987179652U JPH0184029U (en) | 1987-11-27 | 1987-11-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987179652U JPH0184029U (en) | 1987-11-27 | 1987-11-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0184029U true JPH0184029U (en) | 1989-06-05 |
Family
ID=31471198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987179652U Pending JPH0184029U (en) | 1987-11-27 | 1987-11-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0184029U (en) |
-
1987
- 1987-11-27 JP JP1987179652U patent/JPH0184029U/ja active Pending
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