JPH01310127A - Combined cycle power generation device - Google Patents
Combined cycle power generation deviceInfo
- Publication number
- JPH01310127A JPH01310127A JP13842788A JP13842788A JPH01310127A JP H01310127 A JPH01310127 A JP H01310127A JP 13842788 A JP13842788 A JP 13842788A JP 13842788 A JP13842788 A JP 13842788A JP H01310127 A JPH01310127 A JP H01310127A
- Authority
- JP
- Japan
- Prior art keywords
- duct
- damper
- exhaust gas
- warming
- combined cycle
- 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
- 238000010248 power generation Methods 0.000 title claims description 13
- 238000010792 warming Methods 0.000 claims abstract description 31
- 238000007789 sealing Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
- F02C6/18—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use using the waste heat of gas-turbine plants outside the plants themselves, e.g. gas-turbine power heat plants
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
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)
Abstract
Description
【発明の詳細な説明】
〔発明の目的〕
（産業上の利用分野）
本発明はガスタービンの排ガスを分岐ダクトにより排ガ
スボイラと煙突とに切換えて導くようにしたコンバイン
ドサイクル発電装置に係り、特に各ダクトに設けられる
ダンパのウオーミング装置部を改良したコンバインドサ
イクル発電装置に関する。[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention relates to a combined cycle power generation device in which exhaust gas from a gas turbine is switched and guided to an exhaust gas boiler and a chimney through a branch duct, and particularly relates to The present invention relates to a combined cycle power generation device in which a warming device section of a damper provided in each duct is improved.
（従来の技術）
第４図にコンバインドサイクル発電装置の従来例を示し
ている。発［１１に連結されたガスタービン２の排気系
が分岐ダクト３により２系統に分けられ、分岐した一方
のダクト３ａが排ガスボイラ４に接続されるとともに、
他方のダクト３ｂがオープンサイクル運転用の煙突５に
接続されている。排ガスボイラ４には発雷機６に連結さ
れた蒸気タービン７、復水器８および給水ポンプ９等が
接続され、閏じた蒸気タービンサイクルが構成されてい
る。(Prior Art) FIG. 4 shows a conventional example of a combined cycle power generation device. The exhaust system of the gas turbine 2 connected to the generator [11] is divided into two systems by a branch duct 3, and one of the branched ducts 3a is connected to the exhaust gas boiler 4,
The other duct 3b is connected to a chimney 5 for open cycle operation. A steam turbine 7 connected to a torpedo generator 6, a condenser 8, a feed water pump 9, and the like are connected to the exhaust gas boiler 4, forming an interleaved steam turbine cycle.
各ダク１−３ａ、３ｂには排ガスの流れの制御および切
換えを行なうためコントロールダンパ１０゜１１および
ギロチンダンパ１２，１３が設けられている。そして例
えばガスタービン２がオープンサイクルで運転する場合
には、排ガスボイラ４側のダクト３８に：設けられたコ
ントロールダンパ１０およびギロチンダンパ１２は閉じ
、煙突５側のダクト３ｂのコントロールダンパ１１およ
びギロチンダンパ１３が開き、排ガスは煙突５から排出
される。このオープンサイクル運転時は、排ガスボイラ
４側のダクト３ａのダンパ１０，１２下流側に排ガスが
流れないため、ダンパ１０，１２−ト流側のみ排ガスに
よって加熱されるが下流側は伝熱による以外は加熱され
ない状態となる。Each duct 1-3a, 3b is provided with a control damper 10-11 and a guillotine damper 12, 13 for controlling and switching the flow of exhaust gas. For example, when the gas turbine 2 operates in an open cycle, the control damper 10 and guillotine damper 12 provided in the duct 38 on the exhaust gas boiler 4 side are closed, and the control damper 11 and guillotine damper in the duct 3b on the chimney 5 side are closed. 13 is opened and exhaust gas is discharged from the chimney 5. During this open cycle operation, since the exhaust gas does not flow downstream of the dampers 10 and 12 of the duct 3a on the exhaust gas boiler 4 side, only the damper 10 and 12 flow side is heated by the exhaust gas, but the downstream side is heated by the exhaust gas other than by heat transfer. is not heated.
逆にフンバインドサイクル運転時には煙突５側のダクト
３ｂのダンパ１１．１３が閉じ、やはりダンパ１１．１
３上流側のみ加熱され、下流側は伝熱による以外は加熱
されない状態となる。Conversely, during the bind cycle operation, the damper 11.13 of the duct 3b on the chimney 5 side closes, and the damper 11.1 also closes.
3. Only the upstream side is heated, and the downstream side is not heated except by heat transfer.
（発明が解決しようとする課題）
通常、ガスタービンの排ガス温度は５００℃程度あり、
大気渇との温度差は極めて大きい。また、コンバインド
サイクル発電装置の排気系のダクトは一辺が数メートル
の矩形断面とされる場合が多い。このため、ダンパ上下
流側、および上下左右で温度不均一となった場合には比
較的大きい変形が発生し、シール性の悪化、ダンパ駆動
装置のトルクオーバ、さらにはダンパスティック等の不
具合が発生する可能性がある。(Problem to be solved by the invention) Normally, the exhaust gas temperature of a gas turbine is about 500°C.
The temperature difference between atmospheric and dry air is extremely large. Further, the duct of the exhaust system of a combined cycle power generation device often has a rectangular cross section with a side of several meters. Therefore, if the temperature becomes uneven on the upstream and downstream sides of the damper, as well as on the top, bottom, right and left sides, relatively large deformation will occur, resulting in poor sealing performance, overtorque of the damper drive device, and problems such as damper sticking. there is a possibility.
なお、ダンパスティックの発生を防止するには、伝熱に
よってダンパ下流側が十分加熱され、温度不均一による
変形が解消するまでダンパ開ｍ動作を持つ手段があるが
、これでは発電設備運用上の柔軟性が得られず、稼動性
も低下する。In order to prevent the occurrence of damper stick, there is a method of opening the damper until the downstream side of the damper is sufficiently heated by heat transfer and the deformation due to temperature unevenness is resolved, but this method is not flexible in terms of power generation equipment operation. performance is not obtained, and operability is also reduced.
本発明はこのような事情に鑑みてなされたもので、不使
用側のダクトのダンパ部を常時均一な温度に保持するこ
とができ、シール性保持、ダンパ駆動装置のトルク軽減
およびダンパスティック防止が図れ、しかも緊急なダン
パｒＷＪ閉も可能で運用上の柔軟性が得られ稼動性向上
も図れるコンバインドサイクル発電装置を提供すること
を目的とする。The present invention was developed in view of the above circumstances, and it is possible to maintain the damper part of the duct on the unused side at a uniform temperature at all times, maintain sealing performance, reduce torque of the damper drive device, and prevent damper sticking. It is an object of the present invention to provide a combined cycle power generation system that can be used to operate the engine, and also allows for emergency damper rWJ closure, thereby providing operational flexibility and improving operability.
（課題を解決するための手段）
本発明は、ガスタービンの排気系を分岐ダクトにより２
系統に分け、一方を蒸気タービンの蒸気発生器としての
排ガスボイラに接続するとともに、他方をオープンサイ
クル用としての煙突に接続し、かつ分岐した各ダクトに
排ガス制御用のダンパをそれぞれ設けたコンバインドサ
イクル発電表置において、前記ダクトの分岐点近傍がら
前記各ダンパ近傍にウオーミングダクトをそれぞれ導き
、その各ウオーミングダクトに不使用ダクトの前記ダン
パ側を開とするウオーミングダンパを設けたことを特徴
とする。(Means for Solving the Problems) The present invention provides an exhaust system for a gas turbine with two branch ducts.
A combined cycle system in which one side is connected to the exhaust gas boiler as the steam generator of the steam turbine, and the other side is connected to the chimney for open cycle use, and each branched duct is equipped with a damper for exhaust gas control. In the power generation table, a warming duct is guided from near a branch point of the duct to near each of the dampers, and each warming duct is provided with a warming damper that opens the damper side of the unused duct.
（作用）
本発明によれば、ガスタービンの排気の一部がウオーミ
ングダクトおよびウオーミングダンパを介して不使用側
の排気系ダクトのダンパ部に常時供給され、その部分の
温度が均一化される。したがって、オープンサイクル運
転からコンバインドサイクル運転への移行時、またその
逆の場合においてダンパ部に熱的変形がないためシール
性の悪化やダンパ駆動部のトルクオーバを生じることが
なく、またダンパスティックのおそれもない。(Operation) According to the present invention, a part of the exhaust gas of the gas turbine is always supplied to the damper part of the exhaust system duct on the unused side via the warming duct and the warming damper, and the temperature of that part is made uniform. Therefore, when transitioning from open cycle operation to combined cycle operation or vice versa, there is no thermal deformation of the damper section, so there is no deterioration of sealing performance or overtorque of the damper drive section, and there is no risk of damper sticking. Nor.
しかも、変形解消のための待機時間も要しないで即座に
運転切換えが行なえるため運用上の柔軟性も損われない
。Moreover, operational flexibility is not impaired because operation can be switched immediately without requiring any waiting time to eliminate deformation.
（実施例）
以下、本発明の一実施例を第７図および第２図を参照し
て説明する。(Example) An example of the present invention will be described below with reference to FIG. 7 and FIG. 2.
第１図はコンバインドサイクル発電装置全体の系統構成
を示し、第２図はダクト要部を拡大して示している。FIG. 1 shows the system configuration of the entire combined cycle power generation device, and FIG. 2 shows an enlarged view of the main parts of the duct.
発電機２１に連結されたガスタービン２２の排気系が分
岐ダクト２３により２系統に分けられ、分岐した一方の
ダクト２３ａが排ガスボイラ２４に接続されるとともに
、他方のダクｌ〜２３ｂがオープンサイクル運転用の煙
突２５に接続されている。排ガスボイラ２４には発電機
２６に連結された蒸気タービン２７、復水器２８および
給水ポンプ２９等が接続され、閉じた蒸気タービンサイ
クルが構成されている。The exhaust system of the gas turbine 22 connected to the generator 21 is divided into two systems by a branch duct 23, one of the branched ducts 23a is connected to the exhaust gas boiler 24, and the other ducts 1 to 23b are operated in open cycle mode. It is connected to a chimney 25 for use. A steam turbine 27 connected to a generator 26, a condenser 28, a feed water pump 29, and the like are connected to the exhaust gas boiler 24, forming a closed steam turbine cycle.
各ダクト２３ａ、２３ｂには排ガスの流れの制御および
切換えを行なうためコントロールダンパ３０．３１およ
びギロチンダンパ３２．３３が設けられている。Each duct 23a, 23b is provided with a control damper 30.31 and a guillotine damper 32.33 for controlling and switching the flow of exhaust gas.
このものにおいて、ダクト２３の分岐点近傍から各ダン
パ３０．３３近傍にウオーミングダクト３４．３５がそ
れぞれ導かれ、その各ウオーミングダクト３４．３５に
不使用ダクトのダンパ側を開とするウオーミングダンパ
３６，３７がそれぞれ設けられている。なお、各ウオー
ミングダクト３４．３５は１つの基管から分岐した構成
とされ、各ダクト２３ａ、２３ｂ近傍までの部分はそれ
ぞれ小径とされている。そして、各ダクト２３ａ。In this thing, warming ducts 34.35 are led from near the branching point of the duct 23 to near each damper 30.33, and a warming damper 36, which opens the damper side of the unused duct to each warming duct 34.35, 37 are provided respectively. Note that each of the warming ducts 34 and 35 is configured to branch from one base pipe, and the portions near each of the ducts 23a and 23b have a small diameter. And each duct 23a.
２３ｂ部分では、これらのダクト２３ａ、２３ｂを囲む
大径なものとされ、コントロールダンパ３０．３１およ
びギロチンダンパ３２．３３のそれぞれ下流側を順次に
囲んでいる。この各ウオーミングダクト３４．３５の最
終端部３４ａ、３５ａは各ダクト２３ａ、２３ｂに連通
され、排ガスをその内方に排出するようになっている。The portion 23b has a large diameter that surrounds these ducts 23a and 23b, and sequentially surrounds the control damper 30.31 and the guillotine damper 32.33 on the downstream side. The final ends 34a, 35a of each warming duct 34, 35 are communicated with each duct 23a, 23b so as to discharge exhaust gas therein.
しかして、オーブンザイクル運転時には、不使用側、即
ち排ガスボイラ２４側のダクト２３ａへのウオーミング
ダクト３４のウオーミングダンパ３６を開いておく。ガ
スタービン２２の排ガス圧力は、煙突２５側ダクト２３
ｂでのガス流によるロス分だけ大気圧より高くなってお
り、また排ガスボイラ２４側のダクト２３ａのコントロ
ールダンパ３０およびギロチンダンパ３２下流側圧力は
排ガス流がないことにより大気圧となっているため、ウ
オーミングダクト３４を介して排ガスの一部がダクト２
３ａ内に流入する。このウオーミングダクト３４を流れ
る排ガスによってダクト２３ａの各ダンパ３０，３２下
流側が加熱され、ダンパ部分全体が均一な温度条件とな
り、熱的変形が抑制される。なお、ウオーミングダクト
３４はダクト２３ａを囲む形状であるから、ダンパ３０
゜３２部分の上下流のみならず、前後左右全ての方向の
温度が均一化され熱的変形が生じても極めて小さいもの
となる。Therefore, during the oven cycle operation, the warming damper 36 of the warming duct 34 to the duct 23a on the unused side, that is, the exhaust gas boiler 24 side is opened. The exhaust gas pressure of the gas turbine 22 is transferred to the chimney 25 side duct 23.
The pressure is higher than the atmospheric pressure by the loss caused by the gas flow at point b, and the downstream pressure of the control damper 30 and guillotine damper 32 of the duct 23a on the exhaust gas boiler 24 side is atmospheric pressure due to the absence of the exhaust gas flow. , a part of the exhaust gas is transferred to the duct 2 via the warming duct 34.
3a. The downstream side of each damper 30, 32 of the duct 23a is heated by the exhaust gas flowing through the warming duct 34, and the entire damper portion is brought under a uniform temperature condition, thereby suppressing thermal deformation. Note that since the warming duct 34 has a shape surrounding the duct 23a, the damper 30
The temperature is made uniform not only in the upstream and downstream of the 32° part, but also in all directions, so that even if thermal deformation occurs, it will be extremely small.
そして、このようなオープンサイクル運転からコンバイ
ンドサイクル運転に切換える場合には、排ガスボイラ２
４側のダクト２３ａの各ダンパ３０．３２を開動するこ
とになるが、各ダンパ３０゜３２部では温度均一化によ
り熱変形が抑ｉｌｌされていることから、シール性が悪
化することもなく、ダンパ駆動装置のトルクオーバやダ
ンパスティックを生じることもなく円滑に開状態とする
ことができる。しかも、特別のウオーミング待機時間も
要しないで即座に運転切換えが行なえるので、運用上の
柔軟性が損われることもない。When switching from such open cycle operation to combined cycle operation, exhaust gas boiler 2
Although each damper 30.32 of the duct 23a on the 4th side is opened, thermal deformation is suppressed at the 30° 32nd part of each damper by equalizing the temperature, so the sealing performance does not deteriorate. It is possible to smoothly bring the damper into the open state without causing torque over or damper sticking in the damper drive device. Moreover, since operation can be switched immediately without requiring any special warming standby time, operational flexibility is not impaired.
なお、コンバインドサイクル運転からオープンサイクル
運転への切換えについても、前記と逆に煙突２５側のダ
クト２３ｂの各ダンパ３０，３３部分で同様の作用が行
なえる。In addition, regarding the switching from the combined cycle operation to the open cycle operation, the same effect can be performed at each damper 30, 33 portion of the duct 23b on the chimney 25 side, contrary to the above.
また、通常運転時の切換え作用のほか、コンバインドサ
イクル発電装置においては、コンバインドサイクル運転
中に蒸気タービンサイクル系統に事故が発生したり、あ
るいは蒸気タービン２７の発電機２６に接続した電力系
統に異常が生じた場合も緊急切換え運転が行なわれる。In addition to the switching action during normal operation, in a combined cycle power generation system, an accident occurs in the steam turbine cycle system during combined cycle operation, or an abnormality occurs in the power system connected to the generator 26 of the steam turbine 27. Even if this occurs, emergency switching operation is performed.
即ち、６ａ者の蒸気タービンサイクル系統の事故発生時
にはオープンサイクル運転に切換える。また後者の電力
系統異常時には、蒸気タービン２７を所内動力を負担し
得る程度の極低負荷運転、いわゆる所内単独運転を行な
うため、排ガスボイラ２４側のダクト２３ａ内の各ダン
パ３０，３２を所定開度まで閏めるとともに、煙突２５
側のダクｊ−２３ｂ内の各ダンパ３１．３３を所定開度
まで開き、排ガスボイラ２４での蒸気発生量を制御する
。このような緊急切換え運転に対しても、ダンパスティ
ックおよび不要な切換待機時間のない本実施例によれば
十分に対処することができる。That is, when an accident occurs in the 6a steam turbine cycle system, the operation is switched to open cycle operation. In addition, in the latter case of an abnormality in the power system, the dampers 30 and 32 in the duct 23a on the exhaust gas boiler 24 side are opened to a predetermined value in order to operate the steam turbine 27 at an extremely low load that can bear the on-site power, so-called in-house independent operation. Chimney 25
The dampers 31 and 33 in the side duct j-23b are opened to a predetermined opening degree to control the amount of steam generated in the exhaust gas boiler 24. Such an emergency switching operation can be adequately coped with according to this embodiment, which does not require a damper stick or unnecessary switching standby time.
なお、前記実施例では、ウオーミングに使用した排気ガ
スを各ダクト２３ａ、２３ｂ内に排出するようにしたが
、本発明はそのようなものに限られない。即ち、第３図
に示すように、排ガスボイラ２４側のダクト２３ａのウ
オーミングダクト３４を排出ダクト３６を介して煙突３
７に接続してもよい。In addition, in the embodiment described above, the exhaust gas used for warming was discharged into each duct 23a, 23b, but the present invention is not limited to such a configuration. That is, as shown in FIG.
It may be connected to 7.
このような構成にすれば、前記実施例と責なりオープン
サイクル運転時に排ガスボイラ２４までもウオーミング
できるという利点は得られないが、排ガス屋が多い場合
でもボイラ安全弁が不要に開く等の不具合を回避するこ
とができる。This configuration does not have the advantage of being able to warm up the exhaust gas boiler 24 during open cycle operation, unlike the previous embodiment, but it avoids problems such as the boiler safety valve opening unnecessarily even when there are many exhaust gas generators. can do.
また、第３図に示すように、煙突２５側のダクト２３ｂ
へのウオーミングダクト３５を独立構成として抽出し、
これに誘引ファン３８を設けるとともに、このウオーミ
ングダクト３５を連絡ダクト３９で排ガスボイラ２４側
のダクト２３ａｋ一連通させてもよい。In addition, as shown in FIG. 3, the duct 23b on the chimney 25 side
Extract the warming duct 35 to as an independent configuration,
An induction fan 38 may be provided therein, and the warming duct 35 may be connected to the duct 23ak on the exhaust gas boiler 24 side through a communication duct 39.
このような構成にすれば、コンバインドサイクル運転時
のウオーミング用排ガスを排ガスボイラ２４側に回収で
きるとともに、コンバインドサイクル運転時に排ガスボ
イラ２４側のダクト２３ａの各タンパ３０．３２が全開
となって煙突２５側のダクト２３ｂへのウオーミング用
排ガスのｌｌが減少する可能性を誘引ファン３８の作用
で防止することができる。With this configuration, the warming exhaust gas during combined cycle operation can be recovered to the exhaust gas boiler 24 side, and each tamper 30, 32 of the duct 23a on the exhaust gas boiler 24 side is fully opened during combined cycle operation, so that the chimney 25 The effect of the induction fan 38 can prevent the possibility that the amount of warming exhaust gas flowing into the side duct 23b will decrease.
以上のように、本発明のコンバインドサイクル発電装置
によれば、不使用側ダクトのダンパをウオーミングする
ことにより、シール性保持、ダンパ駆動装置のトルク軽
減、ダンパスティックの防止および運用の柔軟性確保が
図れる等の優れた効果が奏される。As described above, according to the combined cycle power generation device of the present invention, by warming the damper of the unused duct, it is possible to maintain sealing performance, reduce the torque of the damper drive device, prevent damper sticking, and ensure operational flexibility. Excellent effects such as improved performance can be achieved.
第１図は本発明の一実施例を示す系統構成図、第２図は
第１図の一部を拡大して示す図、第３図は本発明の他の
実施例を示す図、第４図は従来例を示す系統構成図であ
る。
２２・・・ガスタービン、２３・・・分岐ダクト、２４
・・・排ガスボイラ、２５・・・煙突、２７・・・蒸気
タービン、３０．３１，３２，３３・・・ダンパ、３４
゜３５・・・ウオーミングダクト、３６．３７・・・ウ
オーミングダンパ。
第１図
“Ｔ
第２図
第３図FIG. 1 is a system configuration diagram showing one embodiment of the present invention, FIG. 2 is an enlarged view of a part of FIG. 1, FIG. 3 is a diagram showing another embodiment of the present invention, and FIG. The figure is a system configuration diagram showing a conventional example. 22... Gas turbine, 23... Branch duct, 24
...Exhaust gas boiler, 25...Chimney, 27...Steam turbine, 30.31, 32, 33...Damper, 34
゜35...Warming duct, 36.37...Warming damper. Figure 1 “T” Figure 2 Figure 3
Claims (1)
け、一方を蒸気タービンの蒸気発生器としての排ガスボ
イラに接続するとともに、他方をオープンサイクル用と
しての煙突に接続し、かつ分岐した各ダクトに排ガス制
御用のダンパをそれぞれ設けたコンバインドサイクル発
電装置において、前記ダクトの分岐点近傍から前記各ダ
ンパ近傍にウォーミングダクトをそれぞれ導き、その各
ウォーミングダクトに不使用ダクトの前記ダンパ側を開
とするウォーミングダンパを設けたことを特徴とするコ
ンバインドサイクル発電装置。The exhaust system of the gas turbine is divided into two systems by branch ducts, one is connected to the exhaust gas boiler as the steam generator of the steam turbine, and the other is connected to the chimney for open cycle use, and the exhaust gas is connected to each branched duct. In a combined cycle power generation device each provided with a damper for control, a warming duct is guided from near a branch point of the duct to near each damper, and each warming duct is opened on the damper side of an unused duct. A combined cycle power generation device characterized by being equipped with a warming damper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13842788A JPH01310127A (en) | 1988-06-07 | 1988-06-07 | Combined cycle power generation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13842788A JPH01310127A (en) | 1988-06-07 | 1988-06-07 | Combined cycle power generation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01310127A true JPH01310127A (en) | 1989-12-14 |
Family
ID=15221713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13842788A Pending JPH01310127A (en) | 1988-06-07 | 1988-06-07 | Combined cycle power generation device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01310127A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010065695A (en) * | 2008-09-11 | 2010-03-25 | General Electric Co <Ge> | Low btu fuel flow rate ratio duct burner for heating and heat recovery system |
-
1988
- 1988-06-07 JP JP13842788A patent/JPH01310127A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010065695A (en) * | 2008-09-11 | 2010-03-25 | General Electric Co <Ge> | Low btu fuel flow rate ratio duct burner for heating and heat recovery system |
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