JPH11210494A - Purge device for fuel supply device of gas turbine and method for operating purge device - Google Patents
Purge device for fuel supply device of gas turbine and method for operating purge deviceInfo
- Publication number
- JPH11210494A JPH11210494A JP10012916A JP1291698A JPH11210494A JP H11210494 A JPH11210494 A JP H11210494A JP 10012916 A JP10012916 A JP 10012916A JP 1291698 A JP1291698 A JP 1291698A JP H11210494 A JPH11210494 A JP H11210494A
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- supply system
- inert gas
- air
- gas turbine
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ガスタービン燃料
供給装置に不活性ガスを供給するガスタービン燃料供給
装置のパージ装置およびパージ装置の運転方法に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a purge apparatus for supplying an inert gas to a gas turbine fuel supply apparatus and a method of operating the purge apparatus.
【０００２】[0002]
【従来の技術】最近のガスタービンプラントでは、ガス
タービン燃焼器に燃料として供給していた高価なＬＮＧ
等のガス燃料に代えて、比較的安価な灯油または軽油等
の液体燃料を、ガスタービン起動運転時または停止運転
時、ガスタービン燃焼器に供給し、ガスタービン中間負
荷時、液体燃料から石炭または残渣油をガス化したガス
燃料（以下シンガス燃料と記す）に切り替えて燃焼ガス
を生成することが行われており、ガスタービン燃焼器に
燃料を供給する燃料供給装置として図７に示すものがあ
る。2. Description of the Related Art In recent gas turbine plants, expensive LNG supplied to a gas turbine combustor as fuel has been used.
Instead of gas fuel, etc., a relatively inexpensive liquid fuel such as kerosene or light oil is supplied to the gas turbine combustor at the time of gas turbine start-up operation or stop operation, and at the gas turbine intermediate load, coal or Switching to gas fuel (hereinafter referred to as syngas fuel) from gasified residual oil is performed to generate combustion gas, and there is a fuel supply device for supplying fuel to a gas turbine combustor as shown in FIG. .
【０００３】ガスタービン燃料供給装置は、ガスタービ
ン燃焼器１に液体燃料の供給とシンガス燃料の供給とを
兼用する燃料供給系２と、ガスタービン燃焼器１で燃焼
ガス生成中、火炎から燃料ノズル（図示せず）を保護す
る空気供給系３とを設けた構成になっている。[0003] The gas turbine fuel supply device comprises a fuel supply system 2 for supplying both liquid fuel and syngas fuel to the gas turbine combustor 1, and a fuel nozzle from the flame during combustion gas generation in the gas turbine combustor 1. (Not shown) and an air supply system 3 which protects the air supply system.
【０００４】燃料供給系２は、燃料の流れに沿って順
に、燃料供給弁４、燃料遮断弁５、燃料流量調整弁６を
備え、燃料ノズル７に接続している。[0004] The fuel supply system 2 includes a fuel supply valve 4, a fuel cutoff valve 5, and a fuel flow control valve 6 in order along the flow of fuel, and is connected to a fuel nozzle 7.
【０００５】また、空気供給系３は、空気の流れに沿っ
て順に、空気案内弁８、大気放出弁９、圧力スイッチ１
０、空気供給弁１１を備え、燃料ノズル７に接続してい
る。The air supply system 3 includes an air guide valve 8, an atmosphere release valve 9, a pressure switch 1
0, an air supply valve 11 is connected to the fuel nozzle 7.
【０００６】このような構成を備えたガスタービン燃料
供給装置は、ガスタービン起動運転時またはガスタービ
ン停止運転時、燃料供給系２の燃料供給弁４、燃料遮断
弁５、燃料流量調整弁６を開弁させるとともに、空気供
給系３の空気案内弁８、空気供給弁１１を開弁させ、燃
料タンク（図示せず）からの液体燃料とコンプレッサ
（図示せず）からの空気をガスタービン燃焼器１の燃料
ノズル７に供給し、燃焼ガスを生成している。[0006] The gas turbine fuel supply device having the above-described configuration is configured such that the fuel supply valve 4, the fuel cutoff valve 5, and the fuel flow control valve 6 of the fuel supply system 2 are operated when the gas turbine is started or stopped. In addition to opening the valve, the air guide valve 8 and the air supply valve 11 of the air supply system 3 are opened, and the liquid fuel from the fuel tank (not shown) and the air from the compressor (not shown) are used for the gas turbine combustor. The fuel gas is supplied to one fuel nozzle 7 to generate combustion gas.
【０００７】また、ガスタービン燃料供給装置は、ガス
タービン中間負荷時、空気供給系３の空気案内弁８、空
気供給弁１１を閉弁させるとともに、燃料供給系２に液
体燃料からシンガス燃料に切り替えてガスタービン燃焼
器１で燃焼ガスを生成している。Further, the gas turbine fuel supply device closes the air guide valve 8 and the air supply valve 11 of the air supply system 3 when the gas turbine is intermediately loaded, and switches the fuel supply system 2 from liquid fuel to syngas fuel. Thus, the combustion gas is generated in the gas turbine combustor 1.
【０００８】このように、最近のガスタービンプラント
では、ＬＮＧ等の高価なガス燃料に代えて、比較的安価
な液体燃料およびシンガス燃料をガスタービン負荷の大
小に対応させて使い分け、発電コストの廉価に努めてい
た。As described above, in recent gas turbine plants, relatively inexpensive liquid fuel and syngas fuel are selectively used in accordance with the magnitude of the gas turbine load in place of expensive gas fuel such as LNG, and the power generation cost is reduced. Was working hard.
【０００９】[0009]
【発明が解決しようとする課題】最近のガスタービンプ
ラントでは、液体燃料およびシンガス燃料をガスタービ
ン負荷の大小に合せて使い分け、発電コストの廉価に寄
与しているが、液体燃料とシンガス燃料を使い分ける場
合、幾つかの問題点がある。In recent gas turbine plants, liquid fuel and syngas fuel are selectively used according to the magnitude of the gas turbine load, thereby contributing to lower power generation costs. However, liquid fuel and syngas fuel are selectively used. In this case, there are some problems.
【００１０】ガスタービン燃料供給装置は、ガスタービ
ン中間負荷時の液体燃料からシンガス燃料に切り替える
際、燃料流量調整弁６とガスタービン燃焼器１との間に
空気を残したまま燃料流量調整弁６を開弁させるため、
シンガス燃料に含まれる水素が空気中の酸素に接触し、
その水素の体積ボリューム如何によっては爆発のおそれ
がある。When the gas turbine fuel supply device switches from liquid fuel to syngas fuel at the time of gas turbine intermediate load, the fuel flow control valve 6 with air remaining between the fuel flow control valve 6 and the gas turbine combustor 1. To open the valve,
Hydrogen contained in syngas fuel contacts oxygen in the air,
There is a risk of explosion depending on the volume volume of the hydrogen.
【００１１】また、ガスタービン燃料供給装置は、ガス
タービン停止運転時、シンガス燃料から液体燃料に切り
替える際、燃料流量調整弁６とガスタービン燃焼器１と
の間にシンガス燃料を残したまま空気供給系３の空気案
内弁８、空気供給弁１１を開弁させるため、上述と同様
に爆発のおそれがある。When switching from syngas fuel to liquid fuel during the gas turbine stop operation, the gas turbine fuel supply device supplies air while leaving syngas fuel between the fuel flow control valve 6 and the gas turbine combustor 1. Since the air guide valve 8 and the air supply valve 11 of the system 3 are opened, there is a possibility of explosion as described above.
【００１２】このように、最近のガスタービン燃料供給
装置では、ガスタービン負荷の大小に対応させて燃料を
使い分けることに伴う上述問題点の危険性を防止する必
要がある。As described above, in recent gas turbine fuel supply apparatuses, it is necessary to prevent the danger of the above-mentioned problems caused by using different fuels according to the magnitude of the gas turbine load.
【００１３】本発明は、このような事情に基づいてなさ
れたもので、液体燃料からシンガス燃料に切り替える
際、またはその逆の際、未燃燃料および空気を系内から
確実に取り除いてガスタービン燃焼器に安全運転を行わ
せるガスタービン燃料供給装置のパージ装置およびパー
ジ装置の運転方法を提供することを目的とする。The present invention has been made in view of such circumstances, and when switching from liquid fuel to syngas fuel, or vice versa, unburned fuel and air are reliably removed from the system and the gas turbine combustion is performed. It is an object of the present invention to provide a purge device for a gas turbine fuel supply device and a method for operating the purge device, which allow a vessel to perform safe operation.
【００１４】[0014]
【課題を解決するための手段】本発明に係るガスタービ
ン燃料供給装置のパージ装置は、上記目的を達成するた
めに、請求項１に記載したように、ガスタービン燃焼器
の燃料ノズルに燃料を供給する燃料供給系と、ガスター
ビン燃焼器の燃料ノズルに空気を供給する空気供給系
と、上記燃料供給系および上記空気供給系を介して上記
ガスタービン燃焼器の燃料ノズルに不活性ガスを供給す
る不活性ガス供給系とを備えたものである。According to a first aspect of the present invention, there is provided a gas turbine fuel supply apparatus comprising: a gas turbine; A fuel supply system to supply, an air supply system to supply air to a fuel nozzle of the gas turbine combustor, and an inert gas to the fuel nozzle of the gas turbine combustor via the fuel supply system and the air supply system And an inert gas supply system.
【００１５】本発明に係るガスタービン燃料供給装置の
パージ装置は、上記目的を達成するために、請求項２に
記載したように、不活性ガス供給系は、一つの不活性ガ
ス供給系を第１不活性ガス供給系と第２不活性ガス供給
系とに区分けし、上記第１不活性供給系を燃料供給系の
燃料流量調整弁の入口側に接続するとともに、第２不活
性ガス供給系を空気供給系の空気供給弁の入口側に接続
したものである。According to a second aspect of the present invention, there is provided a purge apparatus for a gas turbine fuel supply apparatus, wherein the inert gas supply system includes one inert gas supply system. The first inert gas supply system is divided into a first inert gas supply system and a second inert gas supply system, and the first inert gas supply system is connected to an inlet side of a fuel flow control valve of the fuel supply system. Is connected to the inlet side of the air supply valve of the air supply system.
【００１６】本発明に係るガスタービン燃料供給装置の
パージ装置は、上記目的を達成するために、請求項３に
記載したように、ガスタービン燃焼器の燃料ノズルに燃
料を供給する燃料供給系と、ガスタービン燃焼器の燃料
ノズルに空気を供給する空気供給系と、上記燃料供給
系、上記空気供給系を介して上記ガスタービン燃焼器の
燃料ノズル、および上記空気供給系に不活性ガスを供給
する不活性ガス供給系とを備えたものである。According to a third aspect of the present invention, there is provided a gas turbine fuel supply apparatus with a fuel supply system for supplying fuel to a fuel nozzle of a gas turbine combustor. An air supply system for supplying air to a fuel nozzle of the gas turbine combustor, and an inert gas to the fuel nozzle of the gas turbine combustor and the air supply system via the fuel supply system and the air supply system And an inert gas supply system.
【００１７】本発明に係るガスタービン燃料供給装置の
パージ装置は、上記目的を達成するために、請求項４に
記載したように、不活性ガス供給系は、一つの不活性ガ
ス供給系を第１不活性ガス供給系、第２不活性ガス供給
系および第３不活性ガス供給系に区分けし、第１不活性
ガス供給系を燃料供給系の燃料流量調整弁の入口側に接
続し、第２不活性ガス供給系を空気供給系の空気供給弁
の出口側に接続し、第３不活性ガス供給系を上記空気供
給系の空気供給弁の入口側に接続したものである。According to a fourth aspect of the present invention, there is provided a purge apparatus for a gas turbine fuel supply apparatus, wherein the inert gas supply system includes one inert gas supply system. The first inert gas supply system is divided into a first inert gas supply system, a second inert gas supply system, and a third inert gas supply system, and the first inert gas supply system is connected to an inlet side of a fuel flow control valve of the fuel supply system. (2) The inert gas supply system is connected to the outlet side of the air supply valve of the air supply system, and the third inert gas supply system is connected to the inlet side of the air supply valve of the air supply system.
【００１８】本発明に係るガスタービン燃料供給装置の
パージ装置は、上記目的を達成するために、請求項５に
記載したように、不活性ガス供給系は圧力スイッチを備
え、圧力スイッチで不活性ガスの圧力を検知し、不活性
ガスの圧力が低下したとき、不活性ガスを増加させて、
その圧力を回復させるものである。According to a fifth aspect of the present invention, there is provided a purge apparatus for a gas turbine fuel supply apparatus, wherein the inert gas supply system includes a pressure switch. Detect gas pressure, and when inert gas pressure decreases, increase inert gas,
The pressure is restored.
【００１９】本発明に係るガスタービン燃料供給装置の
パージ装置は、上記目的を達成するために、請求項６に
記載したように、不活性ガス供給系は、第１不活性ガス
供給系および第２不活性ガス供給系に流量計を設け、不
活性ガスが上記第１不活性ガス供給系および第２不活性
ガス供給系に確実に流れることを上記流量計を介して確
認できるようにしたことを特徴とするものである。According to a sixth aspect of the present invention, there is provided a purge apparatus for a gas turbine fuel supply apparatus, wherein the inert gas supply system comprises a first inert gas supply system and a second inert gas supply system. (2) A flow meter is provided in the inert gas supply system so that it can be confirmed via the flow meter that the inert gas flows reliably to the first inert gas supply system and the second inert gas supply system. It is characterized by the following.
【００２０】本発明に係るガスタービン燃料供給装置の
パージ装置の運転方法は、上記目的を達成するために、
請求項７に記載したように、燃料供給系の種類の異なる
燃料の切替え時、燃料供給系の燃料供給弁、燃料遮断
弁、および燃料流量調整弁を閉弁させ、不活性ガス供給
系からの不活性ガスを上記燃料供給系に供給し、この燃
料供給系に残っている未燃燃料を系外ブローさせ、空気
供給系からの空気をガスタービン燃焼器の燃料ノズルに
供給し、燃料ノズルに残っている未燃燃料を系外ブロー
させた後、不活性ガス供給系からの不活性ガスを上記空
気供給系を介してガスタービン燃焼器の燃料ノズルに供
給し、燃料ノズルに残っている空気を系外ブローさせる
方法である。A method of operating a purging apparatus for a gas turbine fuel supply device according to the present invention includes:
As described in claim 7, at the time of switching between different types of fuel in the fuel supply system, the fuel supply valve, the fuel cutoff valve, and the fuel flow control valve of the fuel supply system are closed and the inert gas supply system is closed. The inert gas is supplied to the fuel supply system, the unburned fuel remaining in the fuel supply system is blown out of the system, and the air from the air supply system is supplied to the fuel nozzle of the gas turbine combustor. After the remaining unburned fuel is blown out of the system, the inert gas from the inert gas supply system is supplied to the fuel nozzle of the gas turbine combustor through the air supply system, and the air remaining in the fuel nozzle is Is blown out of the system.
【００２１】本発明に係るガスタービン燃料供給装置の
パージ装置の運転方法は、上記目的を達成するために、
請求項８に記載したように、燃料供給系の種類の異なる
燃料の切替え時、燃料供給系の燃料供給弁、燃料遮断
弁、および燃料流量調整弁を閉弁させ、不活性ガス供給
系からの不活性ガスを上記燃料供給系に供給し、この燃
料供給系に残っている未燃料燃料を系外ブローさせ、空
気供給系からの空気をガスタービン燃焼器の燃料ノズル
に供給し、燃料ノズルに残っている未燃燃料を系外ブロ
ーさせた後、上記不活性ガス供給系からの不活性ガスを
上記空気供給系に供給して残っている空気を系外ブロー
させるとともに、上記不活性ガス供給系からの不活性ガ
スを、上記空気供給系を介してガスタービン燃焼器の燃
料ノズルに供給し、燃料ノズルに残っている空気を系外
ブローさせる方法である。According to the method of operating the purging device of the gas turbine fuel supply device according to the present invention, in order to achieve the above object,
As described in claim 8, at the time of switching between different types of fuel in the fuel supply system, the fuel supply valve, the fuel cutoff valve, and the fuel flow control valve of the fuel supply system are closed and the inert gas supply system is closed. The inert gas is supplied to the fuel supply system, the unfueled fuel remaining in the fuel supply system is blown out of the system, and the air from the air supply system is supplied to the fuel nozzle of the gas turbine combustor. After the remaining unburned fuel is blown out of the system, the inert gas from the inert gas supply system is supplied to the air supply system to blow the remaining air out of the system, and the inert gas supply is performed. In this method, an inert gas from the system is supplied to a fuel nozzle of a gas turbine combustor via the air supply system, and air remaining in the fuel nozzle is blown out of the system.
【００２２】[0022]
【発明の実施の形態】以下、本発明に係るガスタービン
供給燃料装置のパージ装置およびパージ装置の運転方法
の実施形態を添付図面および図中に付した符号を付して
説明する。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a gas turbine supply fuel system according to an embodiment of the present invention;
【００２３】図１は、本発明に係るガスタービン燃料供
給装置のパージ装置の第１実施形態を示す概略系統図で
ある。FIG. 1 is a schematic system diagram showing a first embodiment of a purge device of a gas turbine fuel supply device according to the present invention.
【００２４】本実施形態に係るガスタービン燃料供給装
置のパージ装置は、ガスタービン燃焼器１２の燃料ノズ
ル１３に燃料を供給する燃料供給系１４と、ガスタービ
ン燃焼器１２の燃料ノズル１３に空気を供給する空気供
給系１５と、燃料供給系１４および空気供給系１５のそ
れぞれに不活性ガス、例えば窒素を供給する不活性ガス
供給系１６とを設けた構成になっている。The gas turbine fuel supply purging apparatus according to this embodiment includes a fuel supply system 14 for supplying fuel to a fuel nozzle 13 of a gas turbine combustor 12 and air to a fuel nozzle 13 of the gas turbine combustor 12. The configuration is such that an air supply system 15 for supply and an inert gas supply system 16 for supplying an inert gas, for example, nitrogen, to each of the fuel supply system 14 and the air supply system 15 are provided.
【００２５】燃料供給系１４は、燃料の流れに沿って順
に、燃料供給弁１７、燃料第１大気放出系１８、圧力ス
イッチ１９、燃料遮断弁２０、燃料第２大気放出系２
１、圧力スイッチ２２、燃料流量調整弁２３を設けると
ともに、燃料第１大気放出系１８に大気放出弁２４およ
び止め弁２５を備える一方、燃料遮断弁２０の入口側か
らバイパスさせ、パージ弁２６を介装させて燃料第２大
気放出系２１に接続するバイパス系２７を備えてガスタ
ービン燃焼器１２の燃料ノズル１３に接続している。な
お、燃料第２大気放出系２１は、燃料第１大気放出系１
８と同様に、大気放出弁２４および止め弁２５を備えて
いる。The fuel supply system 14 includes a fuel supply valve 17, a fuel first air release system 18, a pressure switch 19, a fuel cutoff valve 20, and a fuel second air release system 2 in this order along the fuel flow.
1, a pressure switch 22 and a fuel flow control valve 23 are provided, and the fuel first air release system 18 is provided with an air release valve 24 and a stop valve 25, while bypassing the fuel cutoff valve 20 from the inlet side, and setting a purge valve 26. The gas turbine combustor 12 has a bypass system 27 that is interposed and connected to the fuel second atmospheric release system 21 and is connected to the fuel nozzle 13 of the gas turbine combustor 12. The fuel second air release system 21 is the fuel first air release system 1
8, an air release valve 24 and a stop valve 25 are provided.
【００２６】また、空気供給系１５は、空気の流れに沿
って順に、空気案内弁２８、大気放出弁２９を備えた大
気放出系３０、圧力スイッチ３１、空気供給弁３２を備
えてガスタービン燃焼器１２の燃料ノズル１３に接続し
ている。The air supply system 15 includes an air guide valve 28, an air release system 30 having an air release valve 29, a pressure switch 31, and an air supply valve 32 in order along the flow of air. It is connected to the fuel nozzle 13 of the vessel 12.
【００２７】一方、不活性ガス供給系１６は、不活性ガ
スの流れに沿って順に、圧力調整弁３３、圧力スイッチ
３４を備えるとともに、当該系統の点Ａで第１不活性ガ
ス供給系３５ａと第２不活性ガス供給系３５ｂとに区分
けし、第１不活性ガス供給系３５ａを燃料供給系１４の
燃料流量調整弁２３の入口側に接続するとともに、第２
不活性ガス供給系３５ｂを空気供給系１５の空気供給弁
３２の入口側に接続している。圧力スイッチ３４は、当
該系統内を流れる不活性ガスの圧力を検知し、圧力が不
足しているとき、不活性ガスの流量を増加して圧力を回
復させている。On the other hand, the inert gas supply system 16 includes a pressure regulating valve 33 and a pressure switch 34 in order along the flow of the inert gas. It is divided into a second inert gas supply system 35b, and the first inert gas supply system 35a is connected to the inlet side of the fuel flow control valve 23 of the fuel supply system 14, and the second inert gas supply system 35b is connected to the second inert gas supply system 35b.
The inert gas supply system 35b is connected to the air supply system 15 at the inlet side of the air supply valve 32. The pressure switch 34 detects the pressure of the inert gas flowing in the system, and when the pressure is insufficient, increases the flow rate of the inert gas to recover the pressure.
【００２８】また、第１不活性ガス供給系３５ａおよび
第２不活性ガス供給系３５ｂは、ともに、流量計３６
ａ，３６ｂ、パージ弁３７ａ，３７ｂ、逆止弁３８ａ，
３８ｂ、止め弁３９ａ，３９ｂをそれぞれ設けている。
流量計３６ａ，３６ｂは、不活性ガスが系内を確実に流
れているかを検知している。The first inert gas supply system 35a and the second inert gas supply system 35b are both provided with a flow meter 36.
a, 36b, purge valves 37a, 37b, check valve 38a,
38b and stop valves 39a and 39b are provided respectively.
The flow meters 36a and 36b detect whether the inert gas is flowing reliably in the system.
【００２９】次に、ガスタービン燃料供給装置のパージ
装置の運転方法を説明する。Next, a method of operating the purge device of the gas turbine fuel supply device will be described.
【００３０】ガスタービン燃料供給装置のパージ装置の
運転方法は、液体燃料からシンガス燃料に切り替えるガ
スタービン中間負荷時およびシンガス燃料から液体燃料
に切り替えるガスタービン運転停止途中で行われる。The method of operating the purge device of the gas turbine fuel supply device is performed at the gas turbine intermediate load time when switching from liquid fuel to syngas fuel and during the stoppage of gas turbine operation for switching from syngas fuel to liquid fuel.
【００３１】ガスタービン燃焼器１２に供給している液
体燃料からシンガス燃料に切替えが行われるか、あるい
はその逆が行われると、ガスタービン燃料供給装置は、
燃料供給系１４の燃料供給弁１７、燃料遮断弁２０、燃
料流量調整弁２３を閉弁させるとともに、第２不活性ガ
ス供給系３５ｂのパージ弁３７ｂおよび空気供給系１５
の大気放出弁２９を閉弁させる。When switching from the liquid fuel supplied to the gas turbine combustor 12 to the syngas fuel or vice versa, the gas turbine fuel supply device
The fuel supply valve 17, the fuel cutoff valve 20, and the fuel flow control valve 23 of the fuel supply system 14 are closed, and the purge valve 37b of the second inert gas supply system 35b and the air supply system 15 are closed.
Is closed.
【００３２】各系の弁の閉弁が終了すると、不活性ガス
供給系１６は、圧力調整弁３３、圧力スイッチ３４、第
１不活性ガス供給系３５ａを介して燃料供給系１４に不
活性ガスを供給し、ここで系内に付着・堆積するか、ま
たは残っている未燃燃料をパージするとともに、系内を
不活性ガス雰囲気に置き替えた後、燃料第２大気放出系
２１を介して一方を、大気放出弁２４および止め弁２５
から大気にブローし、他方をパージ弁２６、バイパス系
２７、燃料第１大気放出系１８の大気放出弁２４、止め
弁２５を介して大気にブローする。この間、空気供給系
１５は、空気案内弁２８、空気供給弁３２を介してガス
タービン燃焼器１２の燃料ノズル１３に空気を供給し、
燃料ノズル１３に付着・堆積するか、または残っている
未燃燃料をパージする。なお、不活性ガス供給系１６
は、不活性ガスが系内を設計値通りの圧力になっている
かを圧力スイッチ３４で検出するとともに、その流量が
設計値通りになっているかを第１不活性ガス供給系３５
ａの流量計３６ａで検出しており、不活性ガスの圧力・
流量が設計値以下の場合、不活性ガスの流量を増加させ
るかあるいは修理・交換等の適切な措置を講じるように
している。When the closing of the valves of each system is completed, the inert gas supply system 16 supplies the inert gas to the fuel supply system 14 via the pressure regulating valve 33, the pressure switch 34, and the first inert gas supply system 35a. After purging the remaining unburned fuel which adheres or accumulates in the system or replaces the inside of the system with an inert gas atmosphere, the fuel is supplied through the fuel second atmospheric release system 21. One is an air release valve 24 and a stop valve 25
To the atmosphere, and the other to the atmosphere via a purge valve 26, a bypass system 27, an atmosphere release valve 24 of the first fuel release system 18 and a stop valve 25. During this time, the air supply system 15 supplies air to the fuel nozzle 13 of the gas turbine combustor 12 via the air guide valve 28 and the air supply valve 32,
The unburned fuel adhering and accumulating on the fuel nozzle 13 or remaining is purged. The inert gas supply system 16
Detects whether the pressure of the inert gas in the system is equal to the design value by the pressure switch 34 and determines whether the flow rate of the inert gas is equal to the design value in the first inert gas supply system 35.
a detected by the flow meter 36a,
When the flow rate is below the design value, the flow rate of the inert gas is increased or appropriate measures such as repair and replacement are taken.
【００３３】燃料供給系１４のパージ運転が終了する
と、ガスタービン燃料供給装置は、図２に示すように、
燃料供給系１４の燃料第１大気放出系１８および燃料第
２大気放出系２１の大気放出弁２４、止め弁２５を閉弁
させ、空気供給系１５の空気案内弁２８を閉弁させ、第
２不活性ガス供給系３５ｂのパージ弁３７ｂを開弁さ
せ、不活性ガス供給系１６からの不活性ガスを第２不活
性ガス供給系３５ａ、空気供給系１５を介してガスター
ビン燃焼器１２の燃料ノズル１３に供給し、燃料ノズル
１３に残っている空気を系外にパージさせ、燃料ノズル
１３を不活性ガスに置換させる。When the purging operation of the fuel supply system 14 is completed, the gas turbine fuel supply device, as shown in FIG.
The first air release system 18 of the fuel supply system 14 and the air release valve 24 and the stop valve 25 of the second fuel release system 21 are closed, and the air guide valve 28 of the air supply system 15 is closed. The purge valve 37b of the inert gas supply system 35b is opened, and the inert gas from the inert gas supply system 16 is supplied to the fuel of the gas turbine combustor 12 via the second inert gas supply system 35a and the air supply system 15. The air is supplied to the nozzle 13 and the air remaining in the fuel nozzle 13 is purged out of the system, and the fuel nozzle 13 is replaced with an inert gas.
【００３４】最後に、ガスタービン燃料供給装置は、図
３に示すように、燃料供給系１４の燃料供給弁１７、燃
料遮断弁２０、燃料流量調整弁２３を開弁させ、第２不
活性ガス供給系３５ｂのパージ弁３７ｂを開弁させ、空
気供給系１５の空気供給弁３２を閉弁させ、燃料供給系
１４からのシンガス燃料または液体燃料をガスタービン
燃焼器１２の燃料ノズル１３に供給する。Finally, the gas turbine fuel supply device opens the fuel supply valve 17, the fuel cutoff valve 20, and the fuel flow control valve 23 of the fuel supply system 14, as shown in FIG. The purge valve 37b of the supply system 35b is opened, the air supply valve 32 of the air supply system 15 is closed, and syngas fuel or liquid fuel from the fuel supply system 14 is supplied to the fuel nozzle 13 of the gas turbine combustor 12. .
【００３５】このように、本実施形態では、不活性ガス
供給系１６を、燃料供給系１４に接続する第１不活性ガ
ス供給系３５ａと、空気供給系１５に接続する第２不活
性ガス供給系３５ｂとを区分けし、燃料供給系１４に付
着・堆積するか、または残っている未燃燃料を、第１不
活性ガス供給系３５ａからの不活性ガスで大気に系外ブ
ローさせるとともに、ガスタービン燃焼器１２の燃料ノ
ズル１３に残っている未燃燃料を、一旦、空気供給系１
５からの空気で系外ブローさせた後、ガスタービン燃焼
器１２の燃料ノズル１３に残っている空気を第２不活性
ガス供給系３６ａからの不活性ガスで系外ブローさせ、
ガスタービン燃焼器１２の燃料ノズル１３を不活性ガス
に置換させるので、燃料切替えの際、ガスタービン燃焼
器１２に安全運転を行わせることができ、ガスタービン
燃焼器を安定運転状態に維持することができる。As described above, in the present embodiment, the inert gas supply system 16 is connected to the first inert gas supply system 35 a connected to the fuel supply system 14 and the second inert gas supply system connected to the air supply system 15. The system 35b is separated from the system 35b, and the unburned fuel deposited or deposited on the fuel supply system 14 or the remaining unburned fuel is blown out to the atmosphere with the inert gas from the first inert gas supply system 35a. The unburned fuel remaining in the fuel nozzle 13 of the turbine combustor 12 is temporarily removed from the air supply system 1.
After blowing out of the system with the air from 5, the air remaining in the fuel nozzle 13 of the gas turbine combustor 12 is blown out of the system with the inert gas from the second inert gas supply system 36a,
Since the fuel nozzle 13 of the gas turbine combustor 12 is replaced with an inert gas, it is possible to cause the gas turbine combustor 12 to perform a safe operation at the time of fuel switching, and to maintain the gas turbine combustor in a stable operation state. Can be.
【００３６】図４は、本発明に係るガスタービン燃料供
給装置のパージ装置の第２実施形態を示す概略系統図で
ある。なお、第１実施形態の構成部分と同一部分には同
一符号を付す。FIG. 4 is a schematic system diagram showing a second embodiment of the purge device of the gas turbine fuel supply device according to the present invention. The same components as those of the first embodiment are denoted by the same reference numerals.
【００３７】本実施形態に係るガスタービン燃料供給装
置のパージ装置は、不活性ガス供給系１６を、第１実施
形態と同様に、当該系統の点Ａで第１不活性ガス供給系
３５ａと第２不活性ガス供給系３５ｂとに区分けし、第
１不活性ガス供給系３５ａを燃料供給系１４に接続し、
第２不活性ガス供給系３５ｂを空気供給系１５に接続す
るとともに、新たに当該系統の点Ａより上流側の点Ｂか
らバイパスさせた第３不活性ガス供給系３５ｃを、空気
供給系１５の空気供給弁３２の入口側に接続させたもの
である。In the gas turbine fuel supply purging apparatus according to the present embodiment, the inert gas supply system 16 is connected to the first inert gas supply system 35a at the point A of the system in the same manner as in the first embodiment. 2 divided into an inert gas supply system 35b, the first inert gas supply system 35a is connected to the fuel supply system 14,
The second inert gas supply system 35b is connected to the air supply system 15 and a third inert gas supply system 35c newly bypassed from a point B upstream of the point A of the system is connected to the air supply system 15. It is connected to the inlet side of the air supply valve 32.
【００３８】第３不活性ガス供給系３５ｃは、第１不活
性ガス供給系３５ａおよび第２不活性ガス供給系３５ｂ
と同様に、不活性ガスの流れに沿って順に、流量計３６
ａ、パージ弁３７ｃ、逆止弁３８ｃ、止め弁３９ｃを備
えて空気供給系１５の空気供給弁３２の入口側に接続し
ている。なお、燃料供給系１４、第１不活性ガス供給系
３５ａ、第２不活性ガス供給系３５ｂ、空気供給系１５
のそれぞれの構成は、第１実施形態の構成と基本的にほ
ぼ同じであるので、その説明を省略する。The third inert gas supply system 35c includes a first inert gas supply system 35a and a second inert gas supply system 35b.
In the same manner as described above, the flow meter 36 is sequentially arranged along the flow of the inert gas.
a, a purge valve 37c, a check valve 38c, and a stop valve 39c, which are connected to the inlet side of the air supply valve 32 of the air supply system 15. The fuel supply system 14, the first inert gas supply system 35a, the second inert gas supply system 35b, and the air supply system 15
Are basically substantially the same as the configuration of the first embodiment, and the description thereof will be omitted.
【００３９】次にガスタービン燃料供給装置のパージ装
置の運転方法を説明する。Next, an operation method of the purge device of the gas turbine fuel supply device will be described.
【００４０】ガスタービン燃焼器１２の燃料切替えが行
われる場合、ガスタービン燃料供給装置は、燃料供給系
１４の燃料供給弁１７、燃料遮断弁２０、燃料流量調整
弁２３、第３不活性ガス供給系３５ｃのパージ弁３７ｃ
および第２不活性ガス供給系３５ｂのパージ弁３７ｂを
閉弁させ、不活性ガス供給系１６からの不活性ガスを、
第１不活性ガス供給系３５ａを介して燃料供給系１４に
供給し、ここで燃料供給系１４に付着・堆積または残っ
ている未燃燃料を大気放出弁２４を介して燃料第１大気
放出弁１８から大気にブローさせる一方、空気供給系１
５からの空気を、ガスタービン燃焼器１２の燃料ノズル
１３に供給し、ここで付着・堆積または残っている未燃
燃料を系外ブローする。When fuel switching of the gas turbine combustor 12 is performed, the gas turbine fuel supply device includes a fuel supply valve 17, a fuel cutoff valve 20, a fuel flow control valve 23, and a third inert gas supply of a fuel supply system 14. Purge valve 37c of system 35c
And the purge valve 37b of the second inert gas supply system 35b is closed, and the inert gas from the inert gas supply system 16 is
The first inert gas supply system 35a supplies the fuel to the fuel supply system 14 via the first inert gas supply system 35a. 18 to the atmosphere while the air supply system 1
5 is supplied to the fuel nozzle 13 of the gas turbine combustor 12, where the unburned fuel adhering / accumulating or remaining is blown out of the system.
【００４１】燃料供給系１４のパージ運転が終了する
と、ガスタービン燃料供給装置は、図５に示すように、
燃料供給系１４の燃料第１大気放出系１８の大気放出弁
２４を閉弁させ、空気供給系１５の空気案内弁２８およ
び空気供給系３２を閉弁させるともに、第３不活性ガス
供給系３５ｃのパージ弁３７ｃおよび第２不活性ガス供
給系３５ｂのパージ弁３７ｂを開弁させ、不活性ガス供
給系１６からの不活性ガスを、第３不活性ガス供給系３
５ｃから空気供給系１５に供給し、ここで残っている空
気を大気放出弁２９を介して大気放出系３０から大気に
系外ブローする一方、第２不活性ガス供給系３５ｂを介
してガスタービン燃焼器１２の燃料ノズル１３に不活性
ガスを供給し、ガスタービン燃焼器１２の燃料ノズル１
３に残っている空気を系外ブローさせる。When the purging operation of the fuel supply system 14 is completed, the gas turbine fuel supply device, as shown in FIG.
The air release valve 24 of the fuel first air release system 18 of the fuel supply system 14 is closed, the air guide valve 28 and the air supply system 32 of the air supply system 15 are closed, and the third inert gas supply system 35c is closed. The purge valve 37c of the second inert gas supply system 35b and the purge valve 37b of the second inert gas supply system 35b are opened, and the inert gas from the inert gas supply system 16 is supplied to the third inert gas supply system 3
5c to the air supply system 15, the remaining air is blown out of the system from the atmosphere release system 30 to the atmosphere through the atmosphere release valve 29, and the gas turbine is blown through the second inert gas supply system 35b. An inert gas is supplied to the fuel nozzle 13 of the combustor 12 and the fuel nozzle 1 of the gas turbine combustor 12 is supplied.
The air remaining in 3 is blown out of the system.
【００４２】最後に、ガスタービン燃料供給装置は、図
６に示すように、第１不活性ガス供給系３５ａのパージ
弁３７ａ、第２不活性ガス供給系３５ｂのパージ弁３７
ｂ、空気供給系１５の大気放出系３０の大気放出弁２９
を閉弁させ、燃料供給系１４の燃料供給弁１７、燃料遮
断弁２０、燃料流量調整弁２３を開弁させ、燃料供給系
１４からの燃料をガスタービン燃焼器１２の燃料ノズル
１３に供給する。Finally, as shown in FIG. 6, the gas turbine fuel supply system comprises a purge valve 37a for the first inert gas supply system 35a and a purge valve 37 for the second inert gas supply system 35b.
b, the air release valve 29 of the air release system 30 of the air supply system 15
Is closed, the fuel supply valve 17, the fuel cutoff valve 20, and the fuel flow control valve 23 of the fuel supply system 14 are opened, and the fuel from the fuel supply system 14 is supplied to the fuel nozzle 13 of the gas turbine combustor 12. .
【００４３】このように、本実施形態では、不活性ガス
供給系１６を、燃料供給系１４に接続する第１不活性ガ
ス供給系３５ａと、空気供給系１５を介してガスタービ
ン燃焼器１２の燃料ノズル１３に接続する第２不活性ガ
ス供給系３５ｂと、空気供給系１５に接続する第３不活
性ガス供給系３５ｃとに区分けし、燃料供給系１４に付
着・堆積あるいは残っている未燃燃料を、第１不活性ガ
ス供給系３５ａからの不活性ガスで系外ブローさせ、ガ
スタービン燃焼器１２の燃料ノズル１３に残っている空
気を、第２不活性ガス供給系３５ｂからの不活性ガスで
系外ブローさせ、空気供給系１５に残っている空気を、
第３不活性ガス供給系３５ｃからの不活性ガスで系外ブ
ローさせるので、未燃燃料および残留空気を確実に系外
ブローさせることができ、ガスタービン燃焼器に安全運
転を行わせることができる。As described above, in the present embodiment, the inert gas supply system 16 is connected to the first inert gas supply system 35 a connected to the fuel supply system 14, and the gas turbine combustor 12 via the air supply system 15. It is divided into a second inert gas supply system 35 b connected to the fuel nozzle 13 and a third inert gas supply system 35 c connected to the air supply system 15. The fuel is blown out of the system with the inert gas from the first inert gas supply system 35a, and the air remaining in the fuel nozzle 13 of the gas turbine combustor 12 is inerted from the second inert gas supply system 35b. Blow out the system with gas and remove the air remaining in the air supply system 15
Since the inert gas from the third inert gas supply system 35c is blown out of the system, unburned fuel and residual air can be blown out of the system without fail, and the gas turbine combustor can be operated safely. .
【００４４】[0044]
【発明の効果】以上の説明の通り、本発明に係るガスタ
ービン燃料供給装置のパージ装置およびそのパージ装置
の運転方法は、燃料供給系およびその空気供給系に不活
性ガス供給系を設け、この不活性ガス供給系を少なくと
も二つ以上に区分けし、燃料供給系に付着・堆積または
残っている未燃燃料、ガスタービン燃焼器の燃料ノズル
に残っている未燃燃料および空気、および空気供給系に
残っている空気を全て系外ブローさせるので、種類の異
なる燃料を切り替える際、ガスタービン燃焼器をして安
全運転を行わせることができる。As described above, the gas turbine fuel supply apparatus purging apparatus and the method for operating the purging apparatus according to the present invention are provided with an inert gas supply system in the fuel supply system and the air supply system. The inert gas supply system is divided into at least two or more, and the unburned fuel adhering / accumulating or remaining in the fuel supply system, the unburned fuel and air remaining in the fuel nozzle of the gas turbine combustor, and the air supply system All the remaining air is blown out of the system, so that when switching between different types of fuel, the gas turbine combustor can be operated safely.
【図１】本発明に係るガスタービン燃料供給装置のパー
ジ装置の第１実施形態を示す概略系統図。FIG. 1 is a schematic system diagram showing a first embodiment of a purge device of a gas turbine fuel supply device according to the present invention.
【図２】本発明に係るガスタービン燃料供給装置のパー
ジ装置の第１実施形態における運転方法を説明する図。FIG. 2 is a view for explaining an operation method in the first embodiment of the purge device of the gas turbine fuel supply device according to the present invention.
【図３】本発明に係るガスタービン燃料供給装置のパー
ジ装置の第１実施形態における運転方法の終了を説明す
る図。FIG. 3 is a view for explaining the end of the operation method in the first embodiment of the purge device of the gas turbine fuel supply device according to the present invention.
【図４】本発明に係るガスタービン燃料供給装置のパー
ジ装置の第２実施形態を示す概略系統図。FIG. 4 is a schematic system diagram showing a second embodiment of the purge device of the gas turbine fuel supply device according to the present invention.
【図５】本発明に係るガスタービン燃料供給装置のパー
ジ装置の第２実施形態における運転方法を説明する図。FIG. 5 is a view for explaining an operation method in a second embodiment of the purge device of the gas turbine fuel supply device according to the present invention.
【図６】本発明に係るガスタービン燃料供給装置のパー
ジ装置の第２実施形態における運転方法の終了を説明す
る図。FIG. 6 is a view for explaining the end of the operation method in the second embodiment of the purge device of the gas turbine fuel supply device according to the present invention.
【図７】従来のガスタービン燃料供給装置を示す概略系
統図。FIG. 7 is a schematic system diagram showing a conventional gas turbine fuel supply device.
１ ガスタービン燃焼器 ２ 燃料供給系 ３ 空気供給系 ４ 燃料供給弁 ５ 燃料遮断弁 ６ 燃料流量調整弁 ７ 燃料ノズル ８ 空気案内弁 ９ 大気放出弁 １０ 圧力スイッチ １１ 空気供給弁 １２ ガスタービン燃焼器 １３ 燃料ノズル １４ 燃料供給系 １５ 空気供給系 １６ 不活性ガス供給系 １７ 燃料供給弁 １８ 燃料第１大気放出系 １９ 圧力スイッチ ２０ 燃料遮断弁 ２１ 燃料第２大気放出系 ２２ 圧力スイッチ ２３ 燃料流量調整弁 ２４ 大気放出弁 ２５ 止め弁 ２６ パージ弁 ２７ バイパス系 ２８ 空気案内弁 ２９ 大気放出弁 ３０ 大気放出系 ３１ 圧力スイッチ ３２ 空気供給弁 ３３ 圧力調整弁 ３４ 圧力スイッチ ３５ａ 第１不活性ガス供給系 ３５ｂ 第２不活性ガス供給系 ３５ｃ 第３不活性ガス供給系 ３６ａ，３６ｂ，３６ｃ 流量計 ３７ａ，３７ｂ，３７ｃ パージ弁 ３８ａ，３８ｂ，３８ｃ 逆止弁 ３９ａ，３９ｂ，３９ｃ 止め弁 DESCRIPTION OF SYMBOLS 1 Gas turbine combustor 2 Fuel supply system 3 Air supply system 4 Fuel supply valve 5 Fuel cutoff valve 6 Fuel flow control valve 7 Fuel nozzle 8 Air guide valve 9 Atmospheric release valve 10 Pressure switch 11 Air supply valve 12 Gas turbine combustor 13 Fuel nozzle 14 Fuel supply system 15 Air supply system 16 Inert gas supply system 17 Fuel supply valve 18 First fuel release system 19 Pressure switch 20 Fuel cutoff valve 21 Second fuel release system 22 Pressure switch 23 Fuel flow control valve 24 Atmospheric release valve 25 Stop valve 26 Purge valve 27 Bypass system 28 Air guide valve 29 Atmospheric release valve 30 Atmospheric release system 31 Pressure switch 32 Air supply valve 33 Pressure control valve 34 Pressure switch 35a First inert gas supply system 35b Second Active gas supply system 35c Third inert gas supply system 36a, 36b, 36c Flow meter 3 7a, 37b, 37c Purge valve 38a, 38b, 38c Check valve 39a, 39b, 39c Stop valve
───────────────────────────────────────────────────── フロントページの続き (72)発明者 鈴木 健介 神奈川県横浜市鶴見区末広町二丁目４番地 株式会社東芝京浜事業所内 (72)発明者 竹田 正秀 神奈川県川崎市幸区堀川町66番２ 東芝エ ンジニアリング株式会社内 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kensuke Suzuki 2-4-2 Suehirocho, Tsurumi-ku, Yokohama-shi, Kanagawa Prefecture Inside Keihin Works, Toshiba Corporation (72) Inventor Masahide Takeda 66-2 Horikawacho, Saiwai-ku, Kawasaki-shi, Kanagawa Toshiba Engineering Corporation
Claims (8)
を供給する燃料供給系と、ガスタービン燃焼器の燃料ノ
ズルに空気を供給する空気供給系と、上記燃料供給系お
よび上記空気供給系を介して上記ガスタービン燃焼器の
燃料ノズルに不活性ガスを供給する不活性ガス供給系と
を備えたことを特徴とするガスタービン燃料供給装置の
パージ装置。1. A fuel supply system for supplying fuel to a fuel nozzle of a gas turbine combustor, an air supply system for supplying air to a fuel nozzle of a gas turbine combustor, and the fuel supply system and the air supply system. An inert gas supply system for supplying an inert gas to a fuel nozzle of the gas turbine combustor.
供給系を第１不活性ガス供給系と第２不活性ガス供給系
とに区分けし、上記第１不活性供給系を燃料供給系の燃
料流量調整弁の入口側に接続するとともに、第２不活性
ガス供給系を空気供給系の空気供給弁の入口側に接続し
たことを特徴とする請求項１記載のガスタービン燃料供
給装置のパージ装置。2. The inert gas supply system divides one inert gas supply system into a first inert gas supply system and a second inert gas supply system, and supplies the first inert supply system with a fuel. 2. The gas turbine fuel supply device according to claim 1, wherein the second inert gas supply system is connected to the inlet side of the air supply valve of the air supply system while being connected to the inlet side of the fuel flow control valve of the system. Purge device.
を供給する燃料供給系と、ガスタービン燃焼器の燃料ノ
ズルに空気を供給する空気供給系と、上記燃料供給系、
上記空気供給系を介して上記ガスタービン燃焼器の燃料
ノズル、および上記空気供給系に不活性ガスを供給する
不活性ガス供給系とを備えたことを特徴とするガスター
ビン燃料供給装置のパージ装置。A fuel supply system for supplying fuel to a fuel nozzle of the gas turbine combustor; an air supply system for supplying air to a fuel nozzle of the gas turbine combustor;
A purge device for a gas turbine fuel supply device, comprising: a fuel nozzle for the gas turbine combustor via the air supply system; and an inert gas supply system for supplying an inert gas to the air supply system. .
供給系を第１不活性ガス供給系、第２不活性ガス供給系
および第３不活性ガス供給系に区分けし、第１不活性ガ
ス供給系を燃料供給系の燃料流量調整弁の入口側に接続
し、第２不活性ガス供給系を空気供給系の空気供給弁の
出口側に接続し、第３不活性ガス供給系を上記空気供給
系の空気供給弁の入口側に接続したことを特徴とする請
求項３記載のガスタービン燃料供給装置のパージ装置。4. An inert gas supply system, wherein one inert gas supply system is divided into a first inert gas supply system, a second inert gas supply system, and a third inert gas supply system. The active gas supply system is connected to the inlet side of the fuel flow control valve of the fuel supply system, the second inert gas supply system is connected to the outlet side of the air supply valve of the air supply system, and the third inert gas supply system is connected. 4. The purging device of a gas turbine fuel supply device according to claim 3, wherein the purge device is connected to an inlet side of an air supply valve of the air supply system.
え、圧力スイッチで不活性ガスの圧力を検知し、不活性
ガスの圧力が低下したとき、不活性ガスを増加させて、
その圧力を回復させることを特徴とする請求項１または
３記載のガスタービン燃料供給装置のパージ装置。5. The inert gas supply system includes a pressure switch, detects a pressure of the inert gas with the pressure switch, and increases the inert gas when the pressure of the inert gas decreases.
4. The purging device for a gas turbine fuel supply device according to claim 1, wherein the pressure is restored.
給系および第２不活性ガス供給系に流量計を設け、不活
性ガスが上記第１不活性ガス供給系および第２不活性ガ
ス供給系に確実に流れることを上記流量計を介して確認
できるようにしたことを特徴とする請求項１または３記
載のガスタービン燃料供給装置のパージ装置。6. An inert gas supply system, wherein a flow meter is provided in the first inert gas supply system and the second inert gas supply system, and the inert gas is supplied to the first inert gas supply system and the second inert gas supply system. 4. The purging device for a gas turbine fuel supply device according to claim 1, wherein the flow of the gas into the gas supply system can be confirmed through the flow meter.
時、燃料供給系の燃料供給弁、燃料遮断弁、および燃料
流量調整弁を閉弁させ、不活性ガス供給系からの不活性
ガスを上記燃料供給系に供給し、この燃料供給系に残っ
ている未燃燃料を系外ブローさせ、空気供給系からの空
気をガスタービン燃焼器の燃料ノズルに供給し、燃料ノ
ズルに残っている未燃燃料を系外ブローさせた後、不活
性ガス供給系からの不活性ガスを上記空気供給系を介し
てガスタービン燃焼器の燃料ノズルに供給し、燃料ノズ
ルに残っている空気を系外ブローさせることを特徴とす
るガスタービン燃料供給装置のパージ装置の運転方法。7. When switching between different types of fuel in the fuel supply system, the fuel supply valve, the fuel cutoff valve, and the fuel flow control valve of the fuel supply system are closed to remove the inert gas from the inert gas supply system. The fuel is supplied to the fuel supply system, the unburned fuel remaining in the fuel supply system is blown out of the system, and the air from the air supply system is supplied to the fuel nozzle of the gas turbine combustor. After the fuel is blown out of the system, the inert gas from the inert gas supply system is supplied to the fuel nozzle of the gas turbine combustor via the air supply system, and the air remaining in the fuel nozzle is blown out of the system. A method for operating a purge device of a gas turbine fuel supply device, characterized in that the purge device is operated.
時、燃料供給系の燃料供給弁、燃料遮断弁、および燃料
流量調整弁を閉弁させ、不活性ガス供給系からの不活性
ガスを上記燃料供給系に供給し、この燃料供給系に残っ
ている未燃料燃料を系外ブローさせ、空気供給系からの
空気をガスタービン燃焼器の燃料ノズルに供給し、燃料
ノズルに残っている未燃燃料を系外ブローさせた後、上
記不活性ガス供給系からの不活性ガスを上記空気供給系
に供給して残っている空気を系外ブローさせるととも
に、上記不活性ガス供給系からの不活性ガスを、上記空
気供給系を介してガスタービン燃焼器の燃料ノズルに供
給し、燃料ノズルに残っている空気を系外ブローさせる
ことを特徴とするガスタービン燃料供給装置のパージ装
置の運転方法。8. When switching between different types of fuel in the fuel supply system, the fuel supply valve, the fuel cutoff valve, and the fuel flow control valve of the fuel supply system are closed to remove the inert gas from the inert gas supply system. The fuel is supplied to the fuel supply system, the unfueled fuel remaining in the fuel supply system is blown out of the system, and the air from the air supply system is supplied to the fuel nozzle of the gas turbine combustor. After the fuel is blown out of the system, the inert gas from the inert gas supply system is supplied to the air supply system to blow the remaining air out of the system, and the inert gas from the inert gas supply system is blown. A method for operating a purge device of a gas turbine fuel supply device, characterized in that active gas is supplied to a fuel nozzle of a gas turbine combustor through the air supply system, and air remaining in the fuel nozzle is blown out of the system. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10012916A JPH11210494A (en) | 1998-01-26 | 1998-01-26 | Purge device for fuel supply device of gas turbine and method for operating purge device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10012916A JPH11210494A (en) | 1998-01-26 | 1998-01-26 | Purge device for fuel supply device of gas turbine and method for operating purge device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11210494A true JPH11210494A (en) | 1999-08-03 |
Family
ID=11818682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10012916A Pending JPH11210494A (en) | 1998-01-26 | 1998-01-26 | Purge device for fuel supply device of gas turbine and method for operating purge device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11210494A (en) |
Cited By (17)
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|---|---|---|---|---|
| JP2001159317A (en) * | 1999-12-03 | 2001-06-12 | Mitsubishi Heavy Ind Ltd | Power generating system |
| JP2001214760A (en) * | 2000-02-01 | 2001-08-10 | Mitsubishi Heavy Ind Ltd | Gas turbine fuel gas filling device |
| JP2001241333A (en) * | 2000-02-29 | 2001-09-07 | General Electric Co <Ge> | Dual orifice bypass system for binary fuel gas turbine |
| JP2002013418A (en) * | 2000-06-29 | 2002-01-18 | Mitsubishi Heavy Ind Ltd | Abnormality detection method for gas turbine fuel supply device |
| JP2002129981A (en) * | 2000-10-30 | 2002-05-09 | Toshiba Corp | Fuel supply system in gas turbine |
| JP2007033022A (en) * | 2005-06-24 | 2007-02-08 | Hitachi Ltd | Burner, gas turbine combustor, burner cooling method, and burner modifying method |
| JP2007132345A (en) * | 2005-11-07 | 2007-05-31 | General Electric Co <Ge> | Method and device for combustion turbine fuel recirculation system and nitrogen purge system |
| WO2010029271A1 (en) * | 2008-09-15 | 2010-03-18 | Ge Energy Products France Snc | Device and method of scavenging liquid fuel for a multifuel gas turbine |
| JP2010065579A (en) * | 2008-09-10 | 2010-03-25 | Hitachi Ltd | Fuel supply method of gas turbine |
| JP2011522990A (en) * | 2008-06-09 | 2011-08-04 | シーメンス アクチエンゲゼルシヤフト | Method for cleaning a fuel system of a gas turbine and the fuel system |
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| CN104879221A (en) * | 2015-05-19 | 2015-09-02 | 大连派思燃气系统股份有限公司 | Double-blocking and discharging process system for gas scavenging pipeline |
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|---|---|---|---|---|
| JP2001159317A (en) * | 1999-12-03 | 2001-06-12 | Mitsubishi Heavy Ind Ltd | Power generating system |
| JP2001214760A (en) * | 2000-02-01 | 2001-08-10 | Mitsubishi Heavy Ind Ltd | Gas turbine fuel gas filling device |
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| WO2010029271A1 (en) * | 2008-09-15 | 2010-03-18 | Ge Energy Products France Snc | Device and method of scavenging liquid fuel for a multifuel gas turbine |
| CN103104345A (en) * | 2011-11-10 | 2013-05-15 | 通用电气公司 | System for purging gas fuel circuit for a gas turbine engine |
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| JP2013174239A (en) * | 2012-02-27 | 2013-09-05 | General Electric Co <Ge> | Fuel purging system for turbine assembly |
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| JP2014105575A (en) * | 2012-11-22 | 2014-06-09 | Mitsubishi Heavy Ind Ltd | System and method for controlling fluid supply to gas turbine combustor |
| CN104879221A (en) * | 2015-05-19 | 2015-09-02 | 大连派思燃气系统股份有限公司 | Double-blocking and discharging process system for gas scavenging pipeline |
| US10378447B2 (en) | 2016-09-30 | 2019-08-13 | General Electric Company | System and method for purging fuel or coolant from turbomachine |
| CN107975429A (en) * | 2016-10-24 | 2018-05-01 | 三菱日立电力系统株式会社 | Gas turbine burner and its method of operation |
| KR20180044811A (en) * | 2016-10-24 | 2018-05-03 | 미츠비시 히타치 파워 시스템즈 가부시키가이샤 | Gas turbine combustor and its driving method |
| JP2018071354A (en) * | 2016-10-24 | 2018-05-10 | 三菱日立パワーシステムズ株式会社 | Gas turbine combustor and method for operating the same |
| CN107975429B (en) * | 2016-10-24 | 2020-02-28 | 三菱日立电力系统株式会社 | Gas turbine combustor and method of operating the same |
| US10794296B2 (en) | 2016-10-24 | 2020-10-06 | Mitsubishi Hitachi Power Systems, Ltd. | Gas turbine combustor and method of operating the same |
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