JPH0968005A - Compressor control device in pressurized fluidized bed combined power plant - Google Patents
Compressor control device in pressurized fluidized bed combined power plantInfo
- Publication number
- JPH0968005A JPH0968005A JP22166195A JP22166195A JPH0968005A JP H0968005 A JPH0968005 A JP H0968005A JP 22166195 A JP22166195 A JP 22166195A JP 22166195 A JP22166195 A JP 22166195A JP H0968005 A JPH0968005 A JP H0968005A
- Authority
- JP
- Japan
- Prior art keywords
- fluidized bed
- compressor
- igv
- power plant
- pressurized
- 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
- 238000010586 diagram Methods 0.000 description 5
- 238000010248 power generation Methods 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
- F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
- F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
- F01K23/061—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with combustion in a fluidised bed
- F01K23/062—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with combustion in a fluidised bed the combustion bed being pressurised
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、加圧流動床複合発
電プラントのガスタービン設備に設けられた圧縮機のサ
ージング保護装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surging protection device for a compressor provided in a gas turbine facility of a pressurized fluidized bed combined cycle power plant.
【０００２】[0002]
【従来の技術】加圧流動床複合発電プラントは、加圧容
器内に収納された流動床ボイラで発生する蒸気を利用し
た蒸気タービン発電と上記流動床ボイラーの高温排ガス
を利用するガスタービン発電とを組み合せた複合発電プ
ラント方式であって、図３にその系統図を例示する。図
中（１）は圧縮機、（２）は加圧容器、（３）はガスタ
ービン、（４）は流動床、（５）は蒸気タービン、
（６）は復水器、（７）は給水ポンプ、（８）は煙突、
（９）はガスタービン発電機、（１０）は蒸気タービン
発電機、（１１）は大気、（１２）は圧縮空気、（１
３）はボイラー排ガス、（１４）はガスタービン排ガ
ス、（１５）は主蒸気、（１６）は再熱蒸気をそれぞれ
示す。2. Description of the Related Art A pressurized fluidized bed combined cycle power plant includes steam turbine power generation using steam generated in a fluidized bed boiler housed in a pressure vessel and gas turbine power generation using high temperature exhaust gas from the fluidized bed boiler. FIG. 3 illustrates a system diagram of a combined power plant system in which the above are combined. In the figure, (1) is a compressor, (2) is a pressure vessel, (3) is a gas turbine, (4) is a fluidized bed, (5) is a steam turbine,
(6) is a condenser, (7) is a water supply pump, (8) is a chimney,
(9) is a gas turbine generator, (10) is a steam turbine generator, (11) is the atmosphere, (12) is compressed air, (1)
3) shows boiler exhaust gas, (14) shows gas turbine exhaust gas, (15) shows main steam, and (16) shows reheat steam.
【０００３】従来の一般のガスタービン設備では、圧縮
機の入口案内翼（以下ＩＧＶと記す）を絞ると、絞った
量によって圧縮機の出口圧力も下るため、ＩＧＶの運用
には、サージングに対する制限はなかった。これに対し
加圧流動床複合発電プラントに適用されるガスタービン
圧縮機は、一般のものとは異なりボイラーへ燃焼用空気
を送る送風機としての機能を満足するため風量制御範囲
が広範囲にとられている。In the conventional general gas turbine equipment, if the inlet guide vanes (hereinafter referred to as IGV) of the compressor are throttled, the outlet pressure of the compressor is also reduced by the throttled amount, so that the operation of the IGV is limited by surging. There was no. On the other hand, the gas turbine compressor applied to the pressurized fluidized bed combined cycle power plant, unlike the general one, satisfies the function as a blower that sends the combustion air to the boiler, and therefore has a wide air flow control range. There is.
【０００４】[0004]
【発明が解決しようとする課題】加圧流動床複合発電プ
ラントに適用されるガスタービン圧縮機は、ボイラーへ
燃焼用空気を送る送風機としての機能を満足するため、
風量制御範囲が広範囲にとられており、例えば流量が全
開時の６０％程度まで絞られる。そのためサージングに
対し十分に注意して運転することが要求される。Since the gas turbine compressor applied to the pressurized fluidized bed combined cycle power plant satisfies the function as a blower for sending the combustion air to the boiler,
The air volume control range is wide, and for example, the flow rate is reduced to about 60% of the fully opened state. Therefore, it is required to operate with careful attention to surging.
【０００５】また加圧流動床複合発電プラント用では、
圧縮機出口が大型加圧容器に繋がっている。そのためＩ
ＧＶを絞った場合、サージングラインが下ると圧縮機出
口圧力が逆転し、サージングが発生する危険が多分にあ
る。Further, for a pressurized fluidized bed combined cycle power plant,
The compressor outlet is connected to a large pressure vessel. Therefore I
When the GV is reduced, the compressor outlet pressure reverses when the surging line goes down, and there is a risk of surging.
【０００６】本発明はこの問題点を解消するためになさ
れたものである。The present invention has been made to solve this problem.
【０００７】[0007]
【課題を解決するための手段】本発明者は、前記従来の
課題を解決するために、加圧容器内に収納された流動床
ボイラで発生する蒸気により蒸気タービンを駆動して発
電するとともに、上記流動床ボイラの高温排ガスにより
ガスタービンを駆動して発電する加圧流動床複合発電プ
ラントにおいて、上記流動床ボイラに加圧空気を供給す
る圧縮機のＩＧＶのサージングラインが上記圧縮機の出
口圧力よりも低くならないように、上記出口圧力に対す
る上記ＩＧＶの最低開度を演算して、上記ＩＧＶの開度
に下限制限を付与することを特徴とする加圧流動床複合
発電プラントの圧縮機制御装置を提案するものである。In order to solve the above-mentioned conventional problems, the present inventor drives a steam turbine with steam generated in a fluidized-bed boiler housed in a pressure vessel to generate electricity, and In a pressurized fluidized bed combined cycle power plant that drives a gas turbine to generate electric power by the high temperature exhaust gas of the fluidized bed boiler, a surging line of an IGV of a compressor that supplies pressurized air to the fluidized bed boiler has an outlet pressure of the compressor. A compressor control device for a pressurized fluidized bed combined cycle power generation plant, characterized in that a minimum opening of the IGV with respect to the outlet pressure is calculated so that a lower limit is given to the opening of the IGV so as not to be lower than the above. Is proposed.
【０００８】本発明は上記構成を有し、流動床ボイラに
加圧空気を供給する圧縮機のＩＧＶのサージングライン
が上記圧縮機の出口圧力よりも低くならないように、上
記出口圧力に対する上記ＩＧＶの最低開度を演算して、
上記ＩＧＶの開度に下限制限を付与するので、圧縮機の
サージングを防止しつつ、その風量を広範囲に制御する
ことができ、加圧流動床複合発電プラント用として好適
である。The present invention has the above-mentioned structure, so that the IGV of the compressor for supplying the compressed air to the fluidized bed boiler does not have a surging line lower than the outlet pressure of the compressor. Calculate the minimum opening,
Since the lower limit is applied to the opening degree of the IGV, it is possible to prevent the surging of the compressor and control the air volume over a wide range, which is suitable for a pressurized fluidized bed combined cycle power plant.
【０００９】[0009]
【発明の実施の形態】図１は本発明の実施の一形態に係
る圧縮機制御装置を示す構成図である。1 is a block diagram showing a compressor controller according to an embodiment of the present invention.
【００１０】加圧流動床複合発電プラント用のガスター
ビン圧縮機（１）の出口側には流動床ボイラーの収納さ
れた加圧容器（２）が装備されている。そして流動床ボ
イラーの発生する高温排ガスによってガスタービン
（３）を駆動して上記圧縮機（１）が駆動される。圧縮
機（１）の入口側にはＩＧＶ（２４）が設けられていて
流量・圧力を可変できるようになっている。A pressure vessel (2) accommodating a fluidized bed boiler is installed on the outlet side of a gas turbine compressor (1) for a pressurized fluidized bed combined cycle power plant. The high temperature exhaust gas generated by the fluidized bed boiler drives the gas turbine (3) to drive the compressor (1). An IGV (24) is provided on the inlet side of the compressor (1) so that the flow rate and pressure can be varied.
【００１１】圧縮機（１）の出口側（具体的には出口側
車室下側等）には圧力発信器（２５）が取り付けられて
いて、この圧力信号Ｐを演算器（２６）に入力するよう
になっている。演算器（２６）には、圧力信号Ｐを受け
てＩＧＶ（２４）の翼開度を下限制限する関数発生器
（２７）とＩＧＶ（２４）の開度設定値の高値を選択す
る高値選択器（２８）が組込まれており、常にＩＧＶ開
度を出力してＩＧＶ可変装置（２９）を制御するように
なっている。ＩＧＶ可変装置（２９）は、ＩＧＶ（２
４）を駆動し、開度を電気信号で与えられる設定開度に
設定する油圧サーボ機構である。A pressure transmitter (25) is mounted on the outlet side of the compressor (1) (specifically, on the lower side of the vehicle compartment on the outlet side), and this pressure signal P is input to a calculator (26). It is supposed to do. A calculator (26) receives a pressure signal P and a function generator (27) that limits the blade opening of the IGV (24) to a lower limit and a high value selector that selects a high opening set value of the IGV (24). (28) is incorporated so that the IGV variable device (29) is controlled by constantly outputting the IGV opening. The IGV variable device (29) is connected to the IGV (2
4) is a hydraulic servo mechanism that drives 4) to set the opening to a set opening given by an electric signal.
【００１２】次に本実施形態の作用を図２に基づいて説
明する。圧縮機吐出圧力をＰ，ＩＧＶの各翼開度に対す
るサージングラインをｆ（ｚ）とすると、Ｐ＜ｆ（ｚ）
の関係が保持されていればサージングは防止される。と
ころが圧縮機の出口側は加圧容器に繋がっているため、
ＩＧＶの絞りに対応して出口圧力Ｐは下がらず、図中点
線Ｐで示すようになる。したがって点ＡにおいてＰ＜ｆ
（ｚ）の関係は保持されず、サージングに突入する。そ
こで演算器（２６）を設けてＰ＜ｆ（ｚ）、換言すれば
ｚ＞ｆ-1 (P) となるように下限制限を行なわせ、ＩＧＶ
開度を高値選択させてＢ点で保持させるのである。Next, the operation of this embodiment will be described with reference to FIG. When the compressor discharge pressure is P and the surging line for each IGV blade opening is f (z), P <f (z)
If the relationship is maintained, surging is prevented. However, since the outlet side of the compressor is connected to the pressure vessel,
The outlet pressure P does not decrease corresponding to the throttle of the IGV, and becomes as shown by the dotted line P in the figure. Therefore, at the point A, P <f
The relationship of (z) is not maintained and plunges into surging. Therefore, an arithmetic unit (26) is provided to limit the lower limit so that P <f (z), in other words, z> f −1 (P).
The opening value is selected to be a high value and held at point B.
【００１３】[0013]
【発明の効果】本発明になる加圧流動床複合発電プラン
ト用ガスタービン圧縮機の制御装置によれば、風量制御
範囲が広く、しかも加圧容器を圧縮機出口ラインに装備
したサージングに対し特別留意の必要な圧縮機をサージ
ングから保護することができる。したがって加圧流動床
複合発電プラントの信頼性向上に寄与する効果は大きな
ものがある。According to the controller of the gas turbine compressor for a pressurized fluidized bed combined cycle power plant according to the present invention, the air flow control range is wide, and moreover, it is special for surging in which a pressure vessel is installed in the compressor outlet line. A sensitive compressor can be protected from surging. Therefore, it has a great effect to contribute to the improvement of the reliability of the pressurized fluidized bed combined cycle power plant.
【図１】図１は本発明の実施の一形態に係る圧縮機制御
装置を示す構成図である。FIG. 1 is a configuration diagram showing a compressor control device according to an embodiment of the present invention.
【図２】図２は図１の圧縮機制御装置の作用を示す図で
ある。FIG. 2 is a diagram showing an operation of the compressor control device of FIG.
【図３】図３は加圧流動床複合発電プラントの一例を示
す系統図である。FIG. 3 is a system diagram showing an example of a pressurized fluidized bed combined cycle power generation plant.
（１） 圧縮機 （２） 加圧容器 （３） ガスタービン （４） 流動床 （５） 蒸気タービン （６） 復水器 （７） 給水ポンプ （８） 煙突 （９） ガスタービン発電機 （１０） 蒸気タービン発電機 （１１） 大気 （１２） 圧縮空気 （１３） ボイラー排ガス （１４） ガスタービン排ガス （１５） 主蒸気 （１６） 再熱蒸気 （２４） 入口案内翼（ＩＧＶ） （２５） 圧力発信器 （２６） 演算器 （２７） 関数発生器 （２８） 高値選択器 （２９） ＩＧＶ可変装置 (1) Compressor (2) Pressurized container (3) Gas turbine (4) Fluidized bed (5) Steam turbine (6) Condenser (7) Water supply pump (8) Chimney (9) Gas turbine generator (10) ) Steam turbine generator (11) Atmosphere (12) Compressed air (13) Boiler exhaust gas (14) Gas turbine exhaust gas (15) Main steam (16) Reheated steam (24) Inlet guide vane (IGV) (25) Pressure transmission (26) Operation unit (27) Function generator (28) High price selector (29) IGV variable device
Claims (1)
発生する蒸気により蒸気タービンを駆動して発電すると
ともに、上記流動床ボイラの高温排ガスによりガスター
ビンを駆動して発電する加圧流動床複合発電プラントに
おいて、上記流動床ボイラに加圧空気を供給する圧縮機
の入口案内翼のサージングラインが上記圧縮機の出口圧
力よりも低くならないように、上記出口圧力に対する上
記入口案内翼の最低開度を演算して、上記入口案内翼の
開度に下限制限を付与することを特徴とする加圧流動床
複合発電プラントの圧縮機制御装置。1. Pressurized flow for generating electric power by driving a steam turbine with steam generated in a fluidized bed boiler housed in a pressurized container and driving a gas turbine with high temperature exhaust gas of the fluidized bed boiler. In the combined bed power plant, the minimum of the inlet guide vanes with respect to the outlet pressure is set so that the surging line of the inlet guide vanes of the compressor that supplies pressurized air to the fluidized bed boiler does not become lower than the outlet pressure of the compressor. A compressor control device for a pressurized fluidized bed combined cycle power plant, which calculates an opening degree and applies a lower limit to the opening degree of the inlet guide vanes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22166195A JP3145617B2 (en) | 1995-08-30 | 1995-08-30 | Compressor controller for pressurized fluidized bed combined cycle power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22166195A JP3145617B2 (en) | 1995-08-30 | 1995-08-30 | Compressor controller for pressurized fluidized bed combined cycle power plant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0968005A true JPH0968005A (en) | 1997-03-11 |
| JP3145617B2 JP3145617B2 (en) | 2001-03-12 |
Family
ID=16770285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22166195A Expired - Fee Related JP3145617B2 (en) | 1995-08-30 | 1995-08-30 | Compressor controller for pressurized fluidized bed combined cycle power plant |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3145617B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999000586A1 (en) * | 1997-06-27 | 1999-01-07 | Mitsubishi Heavy Industries, Ltd. | Pressurized fluidized-bed combined cycle power generation system |
| JP2007040171A (en) * | 2005-08-03 | 2007-02-15 | Mitsubishi Heavy Ind Ltd | Gas turbine inlet guide vane control device |
| CN104343668A (en) * | 2013-07-23 | 2015-02-11 | 三星泰科威株式会社 | Fluid compressor control system |
| JP2017101619A (en) * | 2015-12-03 | 2017-06-08 | 三菱日立パワーシステムズ株式会社 | Two-shaft gas turbine having a steam injection mechanism |
-
1995
- 1995-08-30 JP JP22166195A patent/JP3145617B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999000586A1 (en) * | 1997-06-27 | 1999-01-07 | Mitsubishi Heavy Industries, Ltd. | Pressurized fluidized-bed combined cycle power generation system |
| JP2007040171A (en) * | 2005-08-03 | 2007-02-15 | Mitsubishi Heavy Ind Ltd | Gas turbine inlet guide vane control device |
| CN104343668A (en) * | 2013-07-23 | 2015-02-11 | 三星泰科威株式会社 | Fluid compressor control system |
| JP2017101619A (en) * | 2015-12-03 | 2017-06-08 | 三菱日立パワーシステムズ株式会社 | Two-shaft gas turbine having a steam injection mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3145617B2 (en) | 2001-03-12 |
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