JPH035007U - - Google Patents
Info
- Publication number
- JPH035007U JPH035007U JP6297889U JP6297889U JPH035007U JP H035007 U JPH035007 U JP H035007U JP 6297889 U JP6297889 U JP 6297889U JP 6297889 U JP6297889 U JP 6297889U JP H035007 U JPH035007 U JP H035007U
- Authority
- JP
- Japan
- Prior art keywords
- water separator
- brackish water
- outlet
- turbine
- wet
- 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 13
- 239000000446 fuel Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000010248 power generation Methods 0.000 description 1
Landscapes
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Description
第１図は本考案の燃料制御ロジツク図である。
第２図は本考案の対象とするプラント構成図であ
る。第３図および第４図は、従来の燃料制御ロジ
ツク図である。第５図および第６図は、燃料投入
量に対する蒸発器出口エンタルピおよび乾き度の
変化の特性を示す。
１……蒸発器、２……汽水分離器、３……汽水
分離器レベル計、４……汽水分離器ドレン配管、
５……汽水分離器ドレン流量計、６……過熱器、
７……過熱器出口蒸気温度計、８……主蒸気管、
９……タービン入口蒸気温度計、１０……タービ
ンバイパス弁、１１……給水流量計、１２……タ
ービン、１３……加算器、１４……主蒸気圧力偏
差、１５……制御器、１６……切替スイツチ、１
７……関数発生器、１８……主蒸気温度偏差、１
９……制御器、２０……切替スイツチ、２１……
加算器、２２……燃料指令値、２３……発電量指
令値、２４……給水流量、２５……汽水分離器ド
レン流量、２６……蒸発器出口乾き度演算器、２
７……関数発生器、２８……減算器、２９……制
御器。
FIG. 1 is a fuel control logic diagram of the present invention.
FIG. 2 is a diagram showing a plant configuration to which the present invention is applied. 3 and 4 are conventional fuel control logic diagrams. FIGS. 5 and 6 show the characteristics of changes in evaporator outlet enthalpy and dryness with respect to fuel input amount. 1... Evaporator, 2... Brackish water separator, 3... Brackish water separator level meter, 4... Brackish water separator drain piping,
5...Brackish water separator drain flow meter, 6...Superheater,
7...Superheater outlet steam thermometer, 8...Main steam pipe,
9... Turbine inlet steam temperature gauge, 10... Turbine bypass valve, 11... Feed water flow meter, 12... Turbine, 13... Adder, 14... Main steam pressure deviation, 15... Controller, 16... ...Selector switch, 1
7...Function generator, 18...Main steam temperature deviation, 1
9... Controller, 20... Changeover switch, 21...
Adder, 22... Fuel command value, 23... Power generation command value, 24... Water supply flow rate, 25... Brackish water separator drain flow rate, 26... Evaporator outlet dryness calculator, 2
7...Function generator, 28...Subtractor, 29...Controller.
Claims (1)
を回収する配管と、上記汽水分離器で発生した蒸
気をさらに加熱する加熱器と、前記加熱器出口よ
りタービンまで蒸気を導く主蒸気管と上記主蒸気
管の出口に上記タービンをバイパスする弁とを具
備し、起動時の低負荷では蒸発器出口で湿り運転
（ウエツトモード）し、ある負荷以上で乾き運転
（ドライモード）をし、ウエツトモード中はター
ビンバイパス弁で蒸気圧力を制御する変圧モノチ
ユーブボイラに於いて、ウエツトモード中におい
て、給水流量計と汽水分離器ドレン配管流量計と
汽水分離器のレベル計とを付加して、蒸発器出口
乾き度を推定し、上記乾き度で燃料流量指令を制
御してスムーズな昇温のウエツト、ドライ切替を
する起動時主蒸気温度制御装置。 an evaporator, a brackish water separator, and piping for recovering drain from the brackish water separator; a heater for further heating the steam generated in the brackish water separator; a main steam pipe for guiding steam from the outlet of the heater to the turbine; The outlet of the main steam pipe is equipped with a valve that bypasses the turbine, and when the load is low at startup, it performs wet operation (wet mode) at the evaporator outlet, and when the load exceeds a certain level, it operates dry (dry mode). In a variable pressure monotube boiler that controls steam pressure with a turbine bypass valve, a feed water flow meter, a brackish water separator drain pipe flow meter, and a brackish water separator level meter are added to measure the dryness of the evaporator outlet during wet mode. The main steam temperature control device at startup estimates the temperature and controls the fuel flow rate command based on the dryness level to smoothly switch between wet and dry temperatures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6297889U JPH035007U (en) | 1989-05-30 | 1989-05-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6297889U JPH035007U (en) | 1989-05-30 | 1989-05-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH035007U true JPH035007U (en) | 1991-01-18 |
Family
ID=31592619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6297889U Pending JPH035007U (en) | 1989-05-30 | 1989-05-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH035007U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007002488A (en) * | 2005-06-23 | 2007-01-11 | Itoki Corp | Opening device in a large room private panel system |
| JP2007002487A (en) * | 2005-06-23 | 2007-01-11 | Itoki Corp | Wiring and piping routing device in a large room private panel system |
-
1989
- 1989-05-30 JP JP6297889U patent/JPH035007U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007002488A (en) * | 2005-06-23 | 2007-01-11 | Itoki Corp | Opening device in a large room private panel system |
| JP2007002487A (en) * | 2005-06-23 | 2007-01-11 | Itoki Corp | Wiring and piping routing device in a large room private panel system |
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