JPH063148B2 - Dual gas fuel fired gas turbine fuel control system - Google Patents
Dual gas fuel fired gas turbine fuel control systemInfo
- Publication number
- JPH063148B2 JPH063148B2 JP5920986A JP5920986A JPH063148B2 JP H063148 B2 JPH063148 B2 JP H063148B2 JP 5920986 A JP5920986 A JP 5920986A JP 5920986 A JP5920986 A JP 5920986A JP H063148 B2 JPH063148 B2 JP H063148B2
- Authority
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- Japan
- Prior art keywords
- fuel
- flow rate
- gas turbine
- gas
- dual
- 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.)
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Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は気体燃料焚ガスタービン設備に係り、特に気体
燃料発熱量が大きく相違する２種類の気体燃料を燃焼さ
せるに好適な二重気体燃料供給制御装置に関する。Description: TECHNICAL FIELD The present invention relates to a gas-fuel-fired gas turbine facility, and particularly to a dual-gas fuel suitable for burning two kinds of gas fuels having greatly different calorific values of the gas fuel. The present invention relates to a supply control device.
従来の装置は、特開昭４８−４８８１３号に記載のよう
に、一系統の気体燃料供給系統に於いて、燃料ノズル、
燃料流量調整弁等を変更することなく、燃料ガス濃度変
化又はカロリーが変動した場合は、連続計測した値に応
じてガスタービン制御設定信号を制御するようになつて
いた。しかし、発熱量が大きく（例えば１０％以上）相
違する場合には、制御信号の調整だけではなく、燃料ノ
ズルでの圧力比を適正にする必要があるが、この点につ
いては配慮されていなかった。なお、燃料ノズル圧力比
について配慮されたものとして関連するものには例え
ば、特願昭５８−176201号が挙げられるが、燃料ノズル
構造上の制約が有る場合（例えば、気体・液体二重燃料
焚ガスタービン用燃料ノズル）及び切換時の負荷変動に
ついては配慮されていなかつた。A conventional device is a fuel nozzle in a single gas fuel supply system, as described in JP-A-48-48813.
When the fuel gas concentration change or the calorie fluctuates without changing the fuel flow rate adjusting valve or the like, the gas turbine control setting signal is controlled according to the continuously measured value. However, when the calorific values greatly differ (for example, 10% or more), it is necessary not only to adjust the control signal but also to make the pressure ratio at the fuel nozzle proper, but this point was not taken into consideration. . Note that, as a related item considering the fuel nozzle pressure ratio, for example, Japanese Patent Application No. 58-176201 can be cited. However, when there is a restriction on the structure of the fuel nozzle (for example, gas / liquid dual fuel firing). No consideration was given to load fluctuations during gas turbine fuel nozzle switching) and switching.
上記従来技術のうち特開昭４８−48813号は、燃料供給
系統としては、例えば第７図のような要素から構成され
ている。１７はガスカロリーメータ、３はガスタービン
制御弁（流量調整弁）、４は遮断及び圧力調整弁、２は
燃料ノズル、１は燃焼器、５はガスタービン制御装置で
ある。本従来技術では、与えられた燃料供給圧力、燃料
性状（特に、ガス発熱量）条件にて、一種類の燃料に対
しては、運転継続することが可能であり、又、発熱量変
動に対しても、カロリーメータを設置し、その変動に応
じた制御信号を得ることで、対応できるが、許容発熱量
変動巾は制限を受け、一般に１０％以内である。又この
範囲を越える気体燃料を燃焼させようとすると、燃料ノ
ズル噴射口径は一定であるので、圧力比が適正でなくな
り、機器に損傷を与える。気体燃料ノズル口径を選定す
る場合、与えられた発熱量により、第８図の如く全負荷
条件にて燃料ノズル出入口圧力比が適正となる様にす
る。一般に圧力比が下限値以下の場合、燃焼器内で、過
大の燃焼振動が発生し、燃焼器等の機器に損傷を与え
る。又、逆に圧力比が上限値以上の場合、燃料ノズルで
の燃料噴射パターンが不適正となり、燃焼器の過熱を招
くことになる。関連従来技術である特開昭５８−176201
は、燃料供給系統としては、第９図のような要素から構
成されている。１８は切換弁制御装置、１９は切換弁で
ある。発熱量が大きく変動する場合に、燃料ノズルでの
出入口圧力比を適正とする方法として、燃料ノズルガス
穴を２系統独立して設置し、圧力比を計測し、切換弁を
用いて噴射面積を調整している（第１０図）。しかしな
がら、切換弁作動直後の過渡的な気体燃料流量変動に伴
なう負荷変動が発生するという問題があつた。又、燃料
ノズルの構造上の制約（例えば、第１１図に示すような
気体・液体二重燃料焚ノズルの場合には、実際上、ガス
穴を２系統独立させて配置させることが不可能であ
る。）に対する配慮がなされていなかつた。Among the above-mentioned conventional techniques, JP-A-48-48813 has a fuel supply system including, for example, elements as shown in FIG. Reference numeral 17 is a gas calorimeter, 3 is a gas turbine control valve (flow rate adjusting valve), 4 is a shutoff and pressure adjusting valve, 2 is a fuel nozzle, 1 is a combustor, and 5 is a gas turbine control device. According to this conventional technology, it is possible to continue operation for one type of fuel under given fuel supply pressure and fuel property (especially gas calorific value) conditions, and for calorific value fluctuations. However, it can be dealt with by installing a calorie meter and obtaining a control signal according to the variation, but the allowable fluctuation range of the calorific value is limited and is generally within 10%. Further, if an attempt is made to burn gaseous fuel exceeding this range, the fuel nozzle injection port diameter is constant, so the pressure ratio becomes incorrect, and the equipment is damaged. When the gas fuel nozzle diameter is selected, the fuel nozzle inlet / outlet pressure ratio becomes appropriate under all load conditions as shown in FIG. Generally, when the pressure ratio is less than or equal to the lower limit value, excessive combustion vibration occurs in the combustor, which damages the combustor and other devices. On the contrary, when the pressure ratio is equal to or higher than the upper limit value, the fuel injection pattern at the fuel nozzle becomes improper and the combustor is overheated. Related prior art JP-A-58-176201
Is composed of elements as shown in FIG. 9 as a fuel supply system. Reference numeral 18 is a switching valve control device, and 19 is a switching valve. When the calorific value fluctuates greatly, as a method to make the inlet / outlet pressure ratio at the fuel nozzle appropriate, two fuel nozzle gas holes are installed independently, the pressure ratio is measured, and the injection area is adjusted using the switching valve. (Fig. 10). However, there is a problem that a load fluctuation occurs due to a transient gas fuel flow rate fluctuation immediately after the switching valve is activated. Further, there are structural restrictions on the fuel nozzle (for example, in the case of a gas / liquid dual fuel fired nozzle as shown in FIG. 11, it is practically impossible to dispose two gas holes independently. There is no consideration given to
本発明の目的は、ガスタービンパツケージ内の系統は、
従来のまま一系統とし、そのシンプルさを残し、上述の
制約を解決し、又、発熱量が大きく相違（１０％以上）
する２種類の気体燃料を燃焼可能とすることにある。An object of the present invention is to provide a system in a gas turbine package with
Remaining the same system as before, leaving its simplicity, solving the above-mentioned restrictions, and greatly different heat generation (10% or more)
It is to be able to burn two types of gaseous fuels.
〔問題点を解決するための手段〕 発熱量が大きく相違する２種類の気体燃料を、燃焼器等
の機器に損傷を与えず、過渡的な変動を押さえ、かつ燃
料ノズルの構造上の制約を受けることなく、連続的に燃
焼する為には、ガスタービンパツケージ内に設置される
燃料ノズル、ガスタービン制御弁（流量調整弁）及び、
遮断及び圧力調整弁は一系統とし、その上流側で２種類
の気体燃料を混合させる系統とするのがシンプルであ
る。上記パツケージ内機器は、２種類の気体燃料のう
ち、発熱量の大きい気体燃料で設計し、かつ燃料流量の
少ない無負荷時に、圧力比下限値を守れる範囲でノズル
面積を大きくとる。これにて、発熱量の大きい気体燃料
を使つて全負荷帯に渡つて運転が可能となる。発熱量の
小さい気体燃料に対しては、低負荷帯の燃料流量の少な
い範囲では、燃料ノズル圧力比制限内で運転可能とな
る。高負荷帯では、燃料流量が大きく、従って燃料ノズ
ル圧力比が上限値を越えてしまう為、圧力比上限に達す
る前の適切な燃料流量になつたところで、流量調整弁に
て制限し一定流量制御する。負荷上昇に伴ない不足する
燃料は、発熱量の大きい燃料を混合し、燃料ノズル圧力
比が適切な範囲内に入るようにする。これは、発熱量の
大きい燃料を混合することによつて、発熱量の小さい燃
料を単一専焼する場合と比べ燃料増加割合が低減（すな
わち、混合燃料の発熱量が徐々に増加している。）して
いるためである。発熱量の小さい気体燃料を負荷に応じ
て必要量を供給する状態から、一定流量制御に切換える
方法としては、流量監視による方法、燃料ノズル圧力比
を監視する方法及びガスタービン負荷割合を監視する方
法があり、いずれの場合も、上限値を設定しておき、こ
の値を越えた時、一定流量制御に切換える。尚切換点で
のハンチングを避ける為、切換流量には適切なヒステリ
シスを設ける。以上により、上記目的は達成される。[Means for Solving Problems] Two types of gaseous fuels, which have different calorific values, do not damage equipment such as combustors, suppress transient fluctuations, and restrict the structure of the fuel nozzle. In order to burn continuously without receiving, a fuel nozzle installed in the gas turbine package, a gas turbine control valve (flow rate adjusting valve), and
It is simple to use one system for the shut-off and pressure control valve and a system for mixing two kinds of gaseous fuel on the upstream side. The device in the package is designed with a gas fuel having a large calorific value among the two types of gas fuel, and has a large nozzle area within a range in which the lower limit of the pressure ratio can be observed when the fuel flow rate is small and there is no load. As a result, it becomes possible to operate over the entire load range using the gaseous fuel having a large calorific value. With respect to the gaseous fuel having a small calorific value, it is possible to operate within the fuel nozzle pressure ratio limit in a range where the fuel flow rate is small in the low load zone. In the high load zone, the fuel flow rate is large, and therefore the fuel nozzle pressure ratio exceeds the upper limit value.Therefore, when the fuel flow rate becomes appropriate before reaching the upper limit of the pressure ratio, the flow rate adjustment valve limits the flow rate to control the constant flow rate. To do. The fuel that is insufficient due to the increase in load is mixed with a fuel having a large heating value so that the fuel nozzle pressure ratio falls within an appropriate range. This is because, by mixing the fuel having a large calorific value, the fuel increase rate is reduced as compared with the case where the fuel having a small calorific value is burnt alone (that is, the calorific value of the mixed fuel is gradually increasing. ). As a method of switching to a constant flow rate control from a state in which a required amount of gas fuel having a small heat generation amount is supplied according to a load, a method of monitoring a flow rate, a method of monitoring a fuel nozzle pressure ratio, and a method of monitoring a gas turbine load ratio are used. In any case, the upper limit value is set, and when it exceeds this value, the flow rate control is switched to the constant flow rate control. In order to avoid hunting at the switching point, provide an appropriate hysteresis for the switching flow rate. From the above, the above object is achieved.
ガスタービンパツケージ内機器は発熱量の大きい気体燃
料をベースに設計されている為、２種類の気体燃料のう
ち、発熱量の大きい気体燃料に対しては、本燃料を選択
した場合、この燃料供給系統内の遮断弁を全開（発熱量
の小さい燃料供給系統内の遮断弁は全閉）することによ
つて、適正燃料ノズル圧力比範囲内でガスタービンを連
続運転することができる。一方、発熱量の小さい気体燃
料を選択した場合は、この燃料供給系統内の遮断弁を全
開（発熱量の大きい燃料供給系統内の遮断弁は全閉）
し、又流量調整弁は全閉（パイパス量ゼロ）し、ガスタ
ービン運転に必要な燃料ガス量をガスタービンに供給す
る。ガスタービン低負荷時は燃料流量が小さい為、燃料
ノズル圧力比は適正値となる。ガスタービン高負荷時に
は燃料流量が大きくなる為、燃料ノズル圧力比は上限値
を越えてしまうので、燃料流量計にて流量を監視し、上
限値に達した時点で燃料調整弁を作動させ、バイパス量
を制御し、一方、発熱量の大きい燃料供給系統内の遮断
弁を全開させる。これにより、低発熱量燃料は一定流量
制御され、一方、高発熱量燃料は圧力調整弁にて一定圧
力制御される。ガスタービン負荷が上昇すると、燃料供
給量が不足し、ガスタービン供給圧力が低下する為、高
発熱量燃料供給系統圧力が低下するが、圧力調整弁が一
定圧力制御する為、弁が開き、不足分の燃料が高発熱量
燃料供給系統からガスタービンへ供給される。高発熱量
燃料を混合して使用する為、低発熱量燃料だけを使用し
た場合と比較して、燃料流量増加割合は小さくなる。従
つて燃料ノズル圧力比増加割合も低減され、１００％負
荷時でも適正圧力比を維持することが可能となる。Since the equipment inside the gas turbine package is designed based on the gaseous fuel with a large calorific value, when the main fuel is selected for the gaseous fuel with a large calorific value, this fuel supply is selected. By fully opening the shutoff valve in the system (the shutoff valve in the fuel supply system having a small heat generation amount is fully closed), the gas turbine can be continuously operated within the proper fuel nozzle pressure ratio range. On the other hand, when a gas fuel with a small calorific value is selected, the shutoff valve in this fuel supply system is fully opened (the shutoff valve in the fuel supply system with a large calorific value is fully closed).
In addition, the flow control valve is fully closed (zero bypass amount) to supply the fuel gas amount necessary for gas turbine operation to the gas turbine. Since the fuel flow rate is small when the gas turbine has a low load, the fuel nozzle pressure ratio becomes an appropriate value. When the gas turbine is under high load, the fuel flow rate becomes large, and the fuel nozzle pressure ratio exceeds the upper limit value.Therefore, monitor the flow rate with the fuel flow meter, and when the upper limit value is reached, operate the fuel adjustment valve and bypass. The amount of heat is controlled while the shutoff valve in the fuel supply system, which generates a large amount of heat, is fully opened. As a result, the low calorific value fuel is controlled at a constant flow rate, while the high calorific value fuel is controlled at a constant pressure by the pressure control valve. When the gas turbine load increases, the fuel supply amount becomes insufficient and the gas turbine supply pressure decreases, so the high calorific value fuel supply system pressure decreases, but the valve opens due to constant pressure control by the pressure adjustment valve A minute amount of fuel is supplied from the high calorific value fuel supply system to the gas turbine. Since the high calorific value fuel is mixed and used, the fuel flow rate increase rate is smaller than that when only the low calorific value fuel is used. Therefore, the fuel nozzle pressure ratio increase rate is also reduced, and it becomes possible to maintain the proper pressure ratio even at 100% load.
以下、本発明の一実施例を第１図により説明する。高発
熱量燃料供給系統には、遮断弁１１及び圧力調整弁１２
が設置され、当該燃料選択時は当該遮断弁１１を全開さ
せ、当該燃料はガスタービンへ一定圧力供給される。尚
この時、遮断弁６は全閉させる。ガスタービンに入つた
燃料は、従来技術からなる。遮断及び圧力調整弁４、ガ
スタービン制御弁（流量調整弁）３、燃料ノズル２を通
り燃焼器１内へ噴射される。ガスタービン負荷，速度及
び排気温度はガスタービン制御装置５によつて制御さ
れ、その制御信号は流量調整弁３へ伝達される。低発熱
量燃料供給系統には、遮断弁６、圧力調整弁７、流量計
８、及び流量調整弁９が設置され、当該燃料選択時は当
該遮断弁６を全開（一方、遮断弁１１は全閉）させる。
ガスタービン低負荷時は、燃料流量が少ない為、流量調
整弁９は全閉（バイパス量ゼロ）しており、当該燃料は
ガスタービンへ一定圧力供給される。この間、流量は、
流量計８で監視され、ガスタービン負荷が増加し、当該
流量が規定値以上に達した時、流量制御装置１０より一
定流量信号が流量調整弁９へ伝達される。この時、遮断
弁１１も同時に全開させる。流量調整弁９によりバイパ
ス量を調整し、ガスタービンへ流れる流量が一定流量に
なるよう制御される。さらにガスタービン負荷が増加す
ると、ガスタービンに供給すべき燃料流量は増加する
が、低発熱量燃料は上述の如く、一定流量制御されてい
る為、不足分は、高発熱量燃料供給系統から、圧力調整
弁１２の機能により自動的にガスタービンへ供給され
る。第２図に低発熱量燃料流量制御装置１０の一実施例
を示す。ガスタービン低負荷時は燃料流量が小さい為、
信号切換器１１の作用により、弁全閉信号１４が流量調
整弁９へ伝達される。ガスタービン負荷増加に伴ない燃
料流量が増加し、流量信号が流量計８から信号切換器作
動回路１２へ伝達される。流量信号が規定値に達すると
信号切換器作動回路１２が作動し、信号切換器１１が作
動し、弁全閉信号１４から一定流量信号１３に切換わ
り、一定流量信号１３が流量調整弁９へ伝達される。
尚、一定流量信号１３は流量計８のフイードバツク量と
つき合せされ、その差分値により流量調整弁９は制御さ
れる。上記制御によるガスタービン運転状態として、第
３図に燃料ノズル圧力比を、又第４図に燃料流量をそれ
ぞれ示す。上記実施例は、信号切換器作動回路入力を燃
料流量とした場合であるが、変形例として、燃料ノズル
出入口圧力比を入力とした場合の流量制御装置１０の実
施例を第５図に、又、ガスタービン負荷割合を入力とし
た場合の流量制御装置１０の実施例を第６図にそれぞれ
示す。An embodiment of the present invention will be described below with reference to FIG. The high calorific value fuel supply system includes a shutoff valve 11 and a pressure control valve 12.
Is installed, the shutoff valve 11 is fully opened when the fuel is selected, and the fuel is supplied to the gas turbine at a constant pressure. At this time, the shutoff valve 6 is fully closed. The fuel entering the gas turbine is of conventional technology. It is injected into the combustor 1 through the shutoff and pressure control valve 4, the gas turbine control valve (flow rate control valve) 3, and the fuel nozzle 2. The gas turbine load, speed and exhaust temperature are controlled by the gas turbine control device 5, and the control signal is transmitted to the flow rate adjusting valve 3. The low calorific value fuel supply system is provided with a shutoff valve 6, a pressure adjusting valve 7, a flow meter 8, and a flow rate adjusting valve 9, and when the fuel is selected, the shutoff valve 6 is fully opened (while the shutoff valve 11 is fully opened). Close)
When the load of the gas turbine is low, the flow rate of the fuel is small, so the flow rate adjusting valve 9 is fully closed (zero bypass amount), and the fuel is supplied to the gas turbine at a constant pressure. During this time, the flow rate is
A constant flow rate signal is transmitted from the flow rate control device 10 to the flow rate control valve 9 when the gas turbine load increases and the flow rate reaches or exceeds a specified value, as monitored by the flow meter 8. At this time, the shutoff valve 11 is also fully opened at the same time. The bypass amount is adjusted by the flow rate adjusting valve 9, and the flow rate to the gas turbine is controlled to be a constant flow rate. When the gas turbine load further increases, the fuel flow rate to be supplied to the gas turbine increases, but the low calorific value fuel is controlled at a constant flow rate as described above. By the function of the pressure regulating valve 12, the gas is automatically supplied to the gas turbine. FIG. 2 shows an embodiment of the low calorific value fuel flow rate control device 10. Since the fuel flow rate is small when the gas turbine is under low load,
Due to the action of the signal switching device 11, the valve full-close signal 14 is transmitted to the flow rate adjusting valve 9. As the gas turbine load increases, the fuel flow rate increases, and the flow rate signal is transmitted from the flow meter 8 to the signal switch operating circuit 12. When the flow rate signal reaches the specified value, the signal switch operating circuit 12 is activated, the signal switch 11 is activated, the valve full-close signal 14 is switched to the constant flow rate signal 13, and the constant flow rate signal 13 is transferred to the flow rate adjusting valve 9. Transmitted.
The constant flow rate signal 13 is matched with the feed back amount of the flow meter 8, and the flow rate adjusting valve 9 is controlled by the difference value. As a gas turbine operating state under the above control, the fuel nozzle pressure ratio is shown in FIG. 3 and the fuel flow rate is shown in FIG. The above embodiment is a case where the signal switch operating circuit input is the fuel flow rate, but as a modified example, an embodiment of the flow rate control device 10 when the fuel nozzle inlet / outlet pressure ratio is input is shown in FIG. An example of the flow rate control device 10 when the gas turbine load ratio is input is shown in FIG.
本発明によれば、発熱量の大きく相違する（１０％以
上）２種類の気体燃料を、ガスタービンパツケージ内機
器（燃料ノズル，流量調整弁，遮断及び圧力調整弁）を
何ら変更することなく従来技術を使用し、連続的に使用
でき、かつ、燃料ノズル圧力比を適正値に維持すること
ができるので、多岐に渡る気体燃料を使用したいという
顧客要求を満足することができ、ガスタービン市場での
優位性を確保することができ、かつ、燃焼器等の機器の
信頼性が飛躍的に向上するという効果がある。According to the present invention, two kinds of gaseous fuels having greatly different calorific values (10% or more) are conventionally used without changing the equipment (fuel nozzle, flow rate adjusting valve, shutoff and pressure adjusting valve) in the gas turbine package. Using technology, it can be used continuously, and the fuel nozzle pressure ratio can be maintained at an appropriate value, so it is possible to satisfy the customer's demand for using a wide variety of gaseous fuels, and in the gas turbine market. The advantage of being able to secure the superiority of the above and to dramatically improve the reliability of equipment such as a combustor.
第１図は本発明の一実施例である２重気体燃料供給系統
図、第２図は第１図に示す燃料供給系統における流量制
御装置を示すブロツク図、第３図は第２図に表わした流
量制御装置に基づく負荷に対する燃料ノズル圧力比を示
す特性図、第４図は同じく負荷に対する燃料流量を示す
特性図、第５図は本発明の他の実施例である流量制御装
置を示すブロツク図、第６図は本発明の更に他の実施例
である流量制御装置を示すブロツク図、第７図及び第９
図は従来技術を示す燃料供給系統図、第８図及び第１０
図は第７図及び第９図の装置における負荷に対する燃料
ノズル圧力比を示す特性図、第１１図は従来の気体・液
体二重燃料焚ノズルを示す部分断面図である。 ６，１１…遮断弁、７，１２…圧力調整弁、８…流量
計、９…流量調整弁、１０…流量制御装置、１１…信号
切換器、１２…信号切換器作動回路、１３…一定流量信
号、１４…全閉信号。FIG. 1 is a diagram showing a dual gas fuel supply system according to an embodiment of the present invention, FIG. 2 is a block diagram showing a flow rate control device in the fuel supply system shown in FIG. 1, and FIG. 3 is shown in FIG. FIG. 4 is a characteristic diagram showing a fuel nozzle pressure ratio with respect to a load based on the flow rate control device, FIG. 4 is a characteristic diagram showing the fuel flow rate with respect to the load, and FIG. 5 is a block diagram showing a flow rate control device according to another embodiment of the present invention. FIG. 6 and FIG. 6 are block diagrams showing a flow rate control device according to still another embodiment of the present invention, FIG. 7 and FIG.
The figure shows a fuel supply system diagram showing the prior art, FIG. 8 and FIG.
FIG. 11 is a characteristic diagram showing a fuel nozzle pressure ratio with respect to a load in the apparatus shown in FIGS. 7 and 9, and FIG. 11 is a partial sectional view showing a conventional gas / liquid dual fuel firing nozzle. 6, 11 ... Shut-off valve, 7, 12 ... Pressure adjusting valve, 8 ... Flowmeter, 9 ... Flow adjusting valve, 10 ... Flow control device, 11 ... Signal switcher, 12 ... Signal switcher operating circuit, 13 ... Constant flow rate Signal, 14 ... Fully closed signal.
Claims (3)
させるガスタービン設備に於いて、２系統の燃料供給系
統を設け、２系統のうち低発熱量を具備する燃料供給系
統中に流量計及び流量調整弁を設け、単一燃料専焼時当
該燃料流量を計測し、規定値以上の流量に達した時、流
量調整弁にて一定流量供給制御させ、不足する燃料分を
高発熱量を具備する燃料供給系統より供給し、混合させ
ることにより、安定燃焼状態にて単一及び混焼運転でき
ることを特徴とする二重気体燃料焚ガスタービンの燃料
制御装置。1. In a gas turbine facility for combusting two kinds of gaseous fuels having different calorific values, two fuel supply systems are provided, and the flow rate in the fuel supply system having a low calorific value out of the two systems. A meter and a flow rate adjusting valve are provided to measure the fuel flow rate when burning a single fuel, and when the flow rate exceeds a specified value, the flow rate adjusting valve controls a constant flow rate to reduce the amount of fuel generated to a high heating value. A fuel control device for a dual gas fuel fired gas turbine, which is capable of performing single and mixed combustion operations in a stable combustion state by supplying and mixing from a fuel supply system provided.
量を具備する単一燃料専焼時、気体燃料噴射ノズル出入
口圧力比を計測し、規定値以上の圧力比に達した時、流
量調整弁にて一定流量供給制御させることを特徴とする
二重燃料焚ガスタービンの燃料制御装置。2. When the single fuel having a low calorific value is exclusively burnt, the pressure ratio of the inlet and outlet of the gas fuel injection nozzle is measured, and when the pressure ratio exceeds a specified value, A fuel control device for a dual-fuel fired gas turbine, wherein a constant flow rate is controlled by a flow rate control valve.
具備する単一燃料専焼時、ガスタービン負荷出力を計測
し、規定値以上の出力割合に達した時、流量調整弁にて
一定流量供給制御させることを特徴とする二重燃料焚ガ
スタービンの燃料制御装置。3. A flow control valve according to claim 1, wherein when a single fuel having a low calorific value is burnt, the gas turbine load output is measured and when the output ratio exceeds a specified value. A fuel control device for a dual-fuel fired gas turbine, characterized in that the supply of a constant flow rate is controlled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5920986A JPH063148B2 (en) | 1986-03-19 | 1986-03-19 | Dual gas fuel fired gas turbine fuel control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5920986A JPH063148B2 (en) | 1986-03-19 | 1986-03-19 | Dual gas fuel fired gas turbine fuel control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62218628A JPS62218628A (en) | 1987-09-26 |
| JPH063148B2 true JPH063148B2 (en) | 1994-01-12 |
Family
ID=13106785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5920986A Expired - Lifetime JPH063148B2 (en) | 1986-03-19 | 1986-03-19 | Dual gas fuel fired gas turbine fuel control system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH063148B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4545289B2 (en) * | 2000-06-27 | 2010-09-15 | 新日本石油化学株式会社 | Fuel supply facility for gas turbine and supply method using the same |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4979615B2 (en) * | 2008-03-05 | 2012-07-18 | 株式会社日立製作所 | Combustor and fuel supply method for combustor |
| US20090272096A1 (en) * | 2008-05-05 | 2009-11-05 | General Electric Company | Single Manifold Dual Gas Turbine Fuel System |
| US8490406B2 (en) * | 2009-01-07 | 2013-07-23 | General Electric Company | Method and apparatus for controlling a heating value of a low energy fuel |
| US8627668B2 (en) * | 2010-05-25 | 2014-01-14 | General Electric Company | System for fuel and diluent control |
| JP5984558B2 (en) * | 2011-08-24 | 2016-09-06 | 三菱日立パワーシステムズ株式会社 | Gas turbine plant, control device thereof, and control method thereof |
| JP2013076510A (en) * | 2011-09-30 | 2013-04-25 | Miura Co Ltd | Gas supplying apparatus and combustion system |
| WO2024084922A1 (en) * | 2022-10-17 | 2024-04-25 | 三菱重工業株式会社 | Gas turbine control device, gas turbine control method, and gas turbine control program |
-
1986
- 1986-03-19 JP JP5920986A patent/JPH063148B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4545289B2 (en) * | 2000-06-27 | 2010-09-15 | 新日本石油化学株式会社 | Fuel supply facility for gas turbine and supply method using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62218628A (en) | 1987-09-26 |
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