JPS63150516A - Combustor of turbine engine - Google Patents

Combustor of turbine engine

Info

Publication number
JPS63150516A
JPS63150516A JP29926786A JP29926786A JPS63150516A JP S63150516 A JPS63150516 A JP S63150516A JP 29926786 A JP29926786 A JP 29926786A JP 29926786 A JP29926786 A JP 29926786A JP S63150516 A JPS63150516 A JP S63150516A
Authority
JP
Japan
Prior art keywords
combustion
combustor
water
injection device
main
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
Application number
JP29926786A
Other languages
Japanese (ja)
Other versions
JPH0573971B2 (en
Inventor
Hirobumi Nakano
博文 中野
Mitsuharu Murota
室田 光春
Yoichi Tsukahara
塚原 陽一
Toshio Matsuoka
松岡 俊雄
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yanmar Co Ltd
Original Assignee
Yanmar Diesel Engine Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Yanmar Diesel Engine Co Ltd filed Critical Yanmar Diesel Engine Co Ltd
Priority to JP29926786A priority Critical patent/JPS63150516A/en
Publication of JPS63150516A publication Critical patent/JPS63150516A/en
Publication of JPH0573971B2 publication Critical patent/JPH0573971B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE:To reduce the combustion maximum temperature at a shoulder part of a liner of a combustor by a method wherein several water injection holes opened to the main swirlor are provided at an upstream side of nozzle at the extremity end of a water passage in a water injection device. CONSTITUTION:A water injection device 16 is concentrically arranged with a fuel injection device 7, an extremity end of a water passage 18 is applied as a nozzle 19, water drips are sprayed from the nozzle 19 into combustion gas within an atomization cone 11 so as to cause the maximum temperature of the combustion gas at an outer end side A of the atomization cone 11 in the conventional manner. Further, several water injection holes 20 are made in a radial direction of the liner 12 of the combustion unit facing against the upstream side main swirlor of the nozzle 10 are formed water drips are injected toward the main swirlor 15, mixed with combustion air circulated by the main swirlor 15 to decrease the maximum temperature of the combustion gas near the shoulder B of the curved part of the liner 12 of the combustion unit. With this arrangement, occurrence of NOx at the outer end A and the shoulder part B generating a high temperature is reduced.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明はタービンエンジンの燃焼器に係り、特に該燃焼
器のNox低減化のための水噴射装置の改葬に関する、 (従来の技術) 一般に、タービンエンジンからの排気には窒素酸化物、
いわゆるNOXが多く含まれており、このNoxの発生
は燃焼器の燃焼温度が上昇するとともに増大する傾向が
ある。このために、Noにの発生を低減するには燃焼最
高温度を下げることが効果があることが知られている。
DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a combustor of a turbine engine, and particularly relates to the refurbishment of a water injection device for reducing NOx in the combustor. (Prior Art) Generally, The exhaust from turbine engines contains nitrogen oxides,
It contains a large amount of so-called NOx, and the generation of this Nox tends to increase as the combustion temperature of the combustor increases. For this reason, it is known that lowering the maximum combustion temperature is effective in reducing the generation of No.

このため、従来のタービンエンジンの燃焼器の燃料噴射
装置7の内部または周囲に水噴射装置16から加圧した
水を噴射し、その蒸発熱により一次燃焼領域13の燃焼
室最高温度を下げNoxの発生を低減しているものが知
られている(特公昭52−7083号公報参照)。
For this purpose, pressurized water is injected from the water injection device 16 into or around the fuel injection device 7 of the combustor of a conventional turbine engine, and the heat of evaporation lowers the maximum temperature of the combustion chamber in the primary combustion region 13 and reduces Nox. There is a known method that reduces the occurrence of this phenomenon (see Japanese Patent Publication No. 7083/1983).

(発明か解決しようとする問題点) ところが、一般にタービンエンジンの燃焼器では、燃焼
による高温度が発生ずる個所は次の2ケ所とされている
(Problems to be Solved by the Invention) However, in general, in the combustor of a turbine engine, high temperatures due to combustion occur at the following two locations.

すなわちそのうちの1ケ所は、燃料噴射装置7から噴射
される燃料が、アシストスワラ10からの燃焼用hli
助空気により旋回されて約90°の広がりとなって燃焼
する噴霧円錐11の外端部Aと、他の1ケ所はメインス
ワラ15からの燃焼用主空気による旋回流により遠心力
で燃焼器ライナ12の湾曲部で燃焼する肩部Bとである
That is, in one of them, the fuel injected from the fuel injection device 7 is sent to the combustion hli from the assist swirler 10.
The outer end A of the spray cone 11, which is swirled by the auxiliary air and spread to about 90° for combustion, and the other part are heated to the combustor liner 12 by centrifugal force due to the swirling flow of the main air for combustion from the main swirler 15. The shoulder part B burns at the curved part of the shoulder part B.

ところで前記した従来装置では、前者の噴霧円!111
の外端部Aは水噴射装置16から噴射する水滴によって
燃焼最高温度を低下させてNoxの発生を低減すること
ができるが、前記水噴射装置16からの水滴は後者の燃
焼器ライナ12の肩部Bまでは到達仕ず、この肩部Bで
の燃焼最高温度を低下させることができないので、この
肩部BでのNoxの発生を低減させることができないも
のである。
By the way, in the conventional device mentioned above, the former spray circle! 111
The outer end A of the combustor liner 12 can lower the maximum combustion temperature and reduce the generation of NOx by water droplets injected from the water injection device 16. Since the combustion temperature does not reach part B and the maximum combustion temperature at this shoulder part B cannot be lowered, the generation of NOx at this shoulder part B cannot be reduced.

(問題点を解決するための手段) そこで本発明は、前記従来装置の問題点を解決するため
の手段として、第1図ないし第3図に例示する如く、燃
焼器Iの軸中央に燃料噴射装置7と水噴射装置16とを
同心的に設け、更に燃料噴射装置7および水噴射装置1
6の外周に燃焼器lに燃焼°用主空気を導入し旋回させ
るメインスワラ15を同心的に設けたタービンエンジン
の燃焼器において、前記水噴射装置16の水路18先端
のノズル!9の上流側に前記メインスワラ15に面して
開口する多数の水噴出孔20を穿設したものである。
(Means for Solving the Problems) Therefore, as a means for solving the problems of the conventional device, the present invention provides fuel injection at the center of the axis of the combustor I, as illustrated in FIGS. 1 to 3. The device 7 and the water injection device 16 are provided concentrically, and the fuel injection device 7 and the water injection device 1 are also provided concentrically.
In the combustor of a turbine engine, a main swirler 15 for introducing and swirling main air for combustion into the combustor l is concentrically provided on the outer periphery of the combustor l, and the nozzle at the tip of the water channel 18 of the water injection device 16! A large number of water ejection holes 20 are provided on the upstream side of the swirler 9 and open facing the main swirler 15.

(作 用) 本発明は前記手段により、メインスワラ15に而し二開
口する水噴出孔20から噴出する水滴がメインスワラ1
5の旋回空気流に乗って燃焼器ライナ12の肩部Bまで
到達し、この水滴の類8発熱を燃焼ガスより奪って、燃
焼最高温度を下げ、同時に水噴射装置16よりの噴射水
滴により噴霧円錐11の外端部へでの燃焼最高温度を下
げることと相俟って、高温の発生する前記外端部Aおよ
び肩部BでのNOXの発生を低減させるものである。
(Function) According to the present invention, water droplets ejected from the two water spout holes 20 in the main swirler 15 can
The water droplets reach the shoulder B of the combustor liner 12 on the swirling air flow of 5, and take heat from the combustion gas to lower the maximum combustion temperature. In conjunction with lowering the maximum combustion temperature at the outer end of the cone 11, this reduces the generation of NOx at the outer end A and shoulder B, where high temperatures occur.

(実施例) 以下に図面を参照して本発明の好適な実施例を詳細に説
明する。
(Embodiments) Preferred embodiments of the present invention will be described in detail below with reference to the drawings.

第1図ないし第3図は本発明の第!実施例であり、符号
lは図示しない圧縮機から加圧した空気の供給を受けて
都市ガス等のガス燃料を燃焼させ、燃焼ガスを図示しな
いガスタービンに供給して回転させる釣錘状の燃焼器で
あり、2は燃焼器lを覆う燃焼器外筒である。3は燃焼
器外筒2の先端の仙中央に穿設された穴に外側より嵌入
する。アウタボディで、燃焼用補助空気を燃焼室4に導
入する送気口5を有する。6はアウタボディ3を軸方向
に貫通する穴に0リング6bによりシールしつつネジ6
aを介して螺合するインナボディである。
Figures 1 to 3 are the details of the present invention! This is an example, and the reference numeral 1 indicates a hook-shaped combustion system in which gas fuel such as city gas is combusted by receiving pressurized air from a compressor (not shown), and the combustion gas is supplied to a gas turbine (not shown) to rotate it. 2 is a combustor outer cylinder that covers the combustor l. 3 is inserted from the outside into a hole drilled in the center of the tip of the combustor outer cylinder 2. The outer body has an air supply port 5 for introducing combustion auxiliary air into the combustion chamber 4. 6 is a screw 6 that is sealed with an O ring 6b in a hole passing through the outer body 3 in the axial direction.
This is an inner body that is screwed together via a.

7は燃焼器lの軸中央に設けられる燃料噴射装置であり
、該燃料噴射装置7はインナボディ6の軸中心を軸方向
に貫通し燃料を燃焼室4に圧送する送油孔8と、燃焼室
4に対面した先端に燃料を低圧で燃焼室4に噴射する燃
料弁デツプ9とからなっている。IOはアシストスワラ
であり、燃料弁デツプ9とアシストスワラ−IOはイン
ナボディ6とアウタボディ3の軸方向の間に挟着されて
おり、該アシストスワラlOは燃料弁デツプ9の周りに
送気口5からの断熱圧縮した300℃、7気圧の補助空
気を燃焼室4に0.4気圧の気圧差で圧送さ什て旋回さ
せ、燃料弁チップ9から噴射する燃料を第1図点線で図
示する如き約90°の広がりを有する円錐状に噴霧し噴
霧円錐11を形成する。
Reference numeral 7 denotes a fuel injection device provided at the axial center of the combustor l, and the fuel injection device 7 has an oil feed hole 8 that passes through the axial center of the inner body 6 in the axial direction and pumps fuel into the combustion chamber 4, and a combustion It consists of a fuel valve dip 9 at the tip facing the chamber 4, which injects fuel at low pressure into the combustion chamber 4. IO is an assist swirler, and the fuel valve depth 9 and the assist swirler IO are sandwiched between the inner body 6 and the outer body 3 in the axial direction. The adiabatically compressed auxiliary air at 300°C and 7 atm from the combustion chamber 5 is fed into the combustion chamber 4 with a pressure difference of 0.4 atm and swirled, and the fuel injected from the fuel valve tip 9 is shown by the dotted line in Figure 1. A spray cone 11 is formed by spraying in a conical shape having an extent of about 90°.

12は燃焼器外筒2内で、かつ燃料噴射装置7を有する
インナボディ6およびインナボディ6の外周にネジ部6
aにより螺合するアウタボディ3の外側に位置する燃焼
器ライナであり、該燃焼器ライナ12の内側を前記燃焼
室4の一次燃焼領域I3に、燃焼器ライナ12の外側で
燃焼器外筒2との間を圧縮機から圧送される燃焼用主空
気の送気通路14にそれぞれ形成し、燃焼器ライナI2
の基部に送気通路14に連通し燃焼用主空気を0゜4気
圧の圧力差で圧送して旋回させて燃焼させるメインスワ
ラ15を燃料噴射装置7および後述の水噴射装置16と
同心的に形成する。
Reference numeral 12 denotes a threaded portion 6 inside the combustor outer cylinder 2 and on the inner body 6 having the fuel injection device 7 and the outer periphery of the inner body 6.
It is a combustor liner located outside the outer body 3 which is screwed together by a, and the inside of the combustor liner 12 is connected to the primary combustion area I3 of the combustion chamber 4, and the outside of the combustor liner 12 is connected to the combustor outer cylinder 2. The air supply passages 14 for the main combustion air fed under pressure from the compressor are formed between the combustor liner I2 and the combustor liner I2.
A main swirler 15 is formed concentrically with the fuel injection device 7 and the water injection device 16, which will be described later, at the base of the main swirler 15, which communicates with the air supply passage 14 and pumps the main air for combustion with a pressure difference of 0° and 4 atmospheres, swirls it, and burns it. do.

しかして、16は本発明の特徴をなす水噴射装置16で
あり、該水噴射装置16は前記燃料噴射装置7と同心的
に設け、アウタボディ3内を軸方向に燃焼室ltに向け
て水路18を形成し、次いでその先はアウタボディ3の
外周と燃焼器ライナ12の内周との間の隙間を水路18
とし、水路18の先端をノズル19として、該ノズル1
9より水滴を噴霧円錐II内の燃焼ガスに噴霧し、噴霧
円錐llの外端部Aの燃焼ガスの最高温度を低下させる
Reference numeral 16 denotes a water injection device 16, which is a feature of the present invention. The water injection device 16 is provided concentrically with the fuel injection device 7, and is directed toward the combustion chamber lt in the axial direction within the outer body 3. The gap between the outer periphery of the outer body 3 and the inner periphery of the combustor liner 12 is then formed into a water channel 18.
The tip of the water channel 18 is the nozzle 19, and the nozzle 1
9, water droplets are sprayed onto the combustion gas in the spray cone II to lower the maximum temperature of the combustion gas at the outer end A of the spray cone II.

なお、17は前記水路18に水を供給するアウタボディ
3に穿設した送水口である。
In addition, 17 is a water supply port drilled in the outer body 3 for supplying water to the water channel 18.

そして、前記ノズル19の上流側のメインスワラ15に
面する燃焼器ライナ12の半径方向に多数の水噴出孔2
0を、その流路断面積の和が前記ノズル19の流路断面
積に対して約2:lとなる如くして、水噴出孔20から
メインスワラ15の方向に水滴を噴出させ、メインスワ
ラ15によって旋回さU・られた燃焼用主空気と混合し
て燃焼器ライナ12の湾曲部である肩部B付近の燃焼ガ
スの最高温度を低下させるものである。
A large number of water jet holes 2 are arranged in the radial direction of the combustor liner 12 facing the main swirler 15 on the upstream side of the nozzle 19.
0, water droplets are ejected from the water jet holes 20 in the direction of the main swirler 15 such that the sum of the cross-sectional areas of the flow paths is approximately 2:1 with respect to the cross-sectional area of the flow paths of the nozzle 19, and the main swirler 15 It mixes with the swirled combustion main air to lower the maximum temperature of the combustion gas near the shoulder B, which is the curved part of the combustor liner 12.

叙上の如く構成したガスタービンエンジンの燃焼器の作
動について説明する。
The operation of the combustor of the gas turbine engine configured as described above will be explained.

燃料はインナボディ6内の燃料噴射装置7の送油孔8か
らインナボディ6の先端に螺合した燃料弁デツプ9に導
かれ低圧で燃焼室4の一次燃焼領域13に噴射される。
Fuel is guided from an oil feed hole 8 of a fuel injection device 7 in the inner body 6 to a fuel valve dip 9 screwed into the tip of the inner body 6, and is injected into the primary combustion region 13 of the combustion chamber 4 at low pressure.

一方、燃焼を補助する補助空気は図示しない圧縮機によ
り断熱圧縮した300℃、7気圧の空気を0.4気圧の
気圧差でアウタボディイ3の送気口5よりインナボディ
6との間の隙間を経てインナボデ!6に隣接する燃料弁
チップ9とアウタボディ3の間に挟着されたアシストス
ワラlOに圧送し、アシストスワラ10の内部において
径方向に対し傾斜する向きに延在せしめた空気噴出路1
0aにより旋回流とし、前記燃料弁チップ9から噴射さ
れる燃料と混合し、第1図点線で図示する如き90°の
広がりを有する円錐状に噴霧化して噴霧円錐2を形成“
し、図示しない点火栓によって点火し燃焼する。また、
送気通路14より導入される燃焼用主空気がメインスワ
ラ15により旋回流として燃焼を助ける。
On the other hand, the auxiliary air that assists combustion is adiabatically compressed air at 300°C and 7 atm by a compressor (not shown), and the gap between the air inlet 5 of the outer body 3 and the inner body 6 is filled with a pressure difference of 0.4 atm. After that, inner body! The air jet passage 1 is configured to force-feed the air to the assist swirler lO sandwiched between the fuel valve chip 9 adjacent to the fuel valve chip 6 and the outer body 3, and to extend inside the assist swirler 10 in a direction inclined with respect to the radial direction.
0a, the mixture is mixed with the fuel injected from the fuel valve tip 9, and is atomized into a conical shape having a 90° spread as shown by the dotted line in FIG. 1 to form the spray cone 2.
Then, it is ignited and combusted by a spark plug (not shown). Also,
The main combustion air introduced from the air supply passage 14 is turned into a swirling flow by the main swirler 15 to assist combustion.

このとき、アウタボディ3と燃焼器ライナ12との間の
水路18に連通するノズル19から水滴が噴霧円錐ll
に向けて噴出するので、この噴霧水滴の蒸発熱により噴
霧円錐11の外端部Aの燃焼最高温度を低下させるとと
もに、メインスワラ15に面して開口する水噴出孔20
から噴出する水滴がメインスワラ15の旋回空気流に乗
って微細化され燃焼器ライナ12の肩部Bに保持された
燃焼ガスの高温部に導かれ、同じくこの水滴の蒸発熱を
燃焼ガスより奪って燃焼最高温度を低下させ、Noxの
発生を低減するものである。
At this time, water droplets are sprayed into a spray cone from a nozzle 19 communicating with a waterway 18 between the outer body 3 and the combustor liner 12.
The heat of evaporation of these sprayed water droplets lowers the maximum combustion temperature at the outer end A of the spray cone 11, and the water ejection holes 20 that open facing the main swirler 15
The water droplets ejected from the main swirler 15 are atomized by the swirling airflow of the main swirler 15 and guided to the high temperature part of the combustion gas held on the shoulder B of the combustor liner 12, and the heat of evaporation of these water droplets is taken away from the combustion gas. This lowers the maximum combustion temperature and reduces the generation of Nox.

なお、前記実施例では水噴出孔20の流路断面積の和を
ノズル19の流路断面積に対して2:1としたが、この
値は適宜決定して良いものである。
In the above embodiment, the sum of the flow path cross-sectional areas of the water jet holes 20 was set at a ratio of 2:1 to the flow path cross-sectional area of the nozzle 19, but this value may be determined as appropriate.

また、前記実施例では水噴出孔20は水路!8のノズル
19の上流側にメインスワラ15に面する燃焼器ライナ
12の半径方向に形成したが、該水噴出孔20は第2図
に図示する如くメインスワラ15に対面する如く燃焼器
ライナ12に斜めに穿設しても良く、また、図示しない
が、メインスワラ15近くに水を導入するパイプを設け
て、該パイプに多数の水噴出孔をメインスワラ方向に向
けて穿設しても良いものである。
Furthermore, in the embodiment described above, the water jet hole 20 is a waterway! The water jet holes 20 are formed in the radial direction of the combustor liner 12 facing the main swirler 15 on the upstream side of the nozzle 19 of No. Alternatively, although not shown, a pipe for introducing water may be provided near the main swirler 15, and a large number of water jet holes may be bored in the pipe facing toward the main swirler. .

叙上の如き水噴射装置を設けたガスタービンの燃焼器で
のガスタービン出力に対するNox排出排出水噴射fi
1o Ill/hr、 3011/hr、 60 u/
hrで比較したものを第3図に図示するが、例えば出力
200KWのとき水噴射flO(1/hrのときN o
xi12度は約80P、P、Mであるが、水噴射mを3
011/hr、 60 u/hrとしたときのNox濃
度はそれぞれ約35P、P、M、25P、P、Mとなり
、特に水噴射m30(L/hr(水の燃料に対する噴射
割合約25%)としたときにN oxa度を約50%以
上低減できる顕著な効果があることが第3図により明白
である。
Nox emission exhaust water injection fi for gas turbine output in a gas turbine combustor equipped with a water injection device as described above
1o Ill/hr, 3011/hr, 60 u/hr
Fig. 3 shows a comparison in terms of hr. For example, when the output is 200KW, water injection flO (when the output is 1/hr, NO
xi12 degrees is about 80P, P, M, but water injection m is 3
011/hr and 60 u/hr, the Nox concentration is about 35P, P, M, 25P, P, M, respectively, and especially when water injection m30 (L/hr (injection ratio of water to fuel is about 25%)) It is clear from FIG. 3 that there is a remarkable effect of reducing NOx levels by about 50% or more when this is done.

次に、燃料を常時は都市ガス、非常時(例えば地震の時
)には液体燃料に自動的に切換える第2実施例としての
2燃料方式のタービンエンジンの燃焼器について第4図
および第5図を参照して説明する。
Next, Figures 4 and 5 show the combustor of a two-fuel type turbine engine as a second embodiment in which the fuel is automatically switched to city gas at all times and to liquid fuel in emergencies (for example, during an earthquake). Explain with reference to.

本実施例の構造は前記第1実施例とほぼ同一であるので
詳細は省略するが、第4図図示の如く、燃焼器2の燃料
噴射装置7の送油孔8にガス燃料を供給する配管中に遮
断弁Xを、また液体燃料を供給する配管中に遮断弁Yを
、また水噴射装宣16の送水口17に水を供給する配管
中に遮断弁Zをそれぞれ設け、各遮断弁X、Y、Zを第
5図図示の如く開閉する。
The structure of this embodiment is almost the same as that of the first embodiment, so the details will be omitted, but as shown in FIG. A shutoff valve , Y, and Z as shown in FIG.

すなわち、常時は遮断弁Yを閉じるととも・に遮断弁X
を開として、都市ガスを燃料として燃焼を行ない、遮断
弁Zも開として水を噴霧して燃焼ガスの最高温度を低く
保ってNoxの低減を計っている。地震などの非常時に
は感知器によって遮断弁Yを開いて燃料を液体に切換え
、遮断弁Xはtaの短時間のタイミングをおいて閉とし
、また遮断弁Zは遮断弁Yの開と同時に閉とし、遮断弁
Xの閉と同時または暫時の猶予をおいて開とする如く制
御する。すなわち、 tw≧tc とするものである。
In other words, shutoff valve Y is normally closed and shutoff valve X is closed.
The engine is left open to perform combustion using city gas as fuel, and the shutoff valve Z is also opened to spray water to keep the maximum temperature of the combustion gas low and reduce NOx. In the event of an emergency such as an earthquake, a sensor opens shutoff valve Y to switch the fuel to liquid, shutoff valve , the shutoff valve X is controlled to be opened at the same time as the shutoff valve X is closed or after a short delay. That is, tw≧tc.

かくの如く時差をもって制御するのは、燃料を都市ガス
より液体に切換える時に水の噴射を燃料の切換より遅ら
せて保炎を維持し、それによって燃料切換時のエンスト
を防止するためである。
The purpose of controlling with such a time difference is to maintain flame stability by delaying water injection when switching fuel from city gas to liquid, thereby preventing engine stalling when switching fuel.

(発明の効果) 本発明は叙上の如く構成するものであるので、メインス
ワラ15に面して開口する水噴出孔20から噴出する水
滴がメインスワラ15の旋回空気流に乗って燃焼器ライ
ナ12の肩部Bまで到達し、この水滴の蒸発熱を燃焼ガ
スより奪って、肩部Bでの燃焼最高温度を下げ、同時に
水噴射装置16よりの噴射水滴により噴霧円錐11の外
端部Aでの燃焼最高温度を下げることと相俟って、高温
の発生する前記外端部Aおよび肩部BでのNOXの発生
を低減させるものである。
(Effects of the Invention) Since the present invention is configured as described above, water droplets ejected from the water jet holes 20 that open facing the main swirler 15 ride on the swirling airflow of the main swirler 15 and flow into the combustor liner 12. The heat of vaporization of these water droplets is taken away from the combustion gas to lower the maximum combustion temperature at the shoulder B, and at the same time, the water droplets jetted from the water injection device 16 cause the water droplets to emit heat at the outer end A of the spray cone 11. Together with lowering the maximum combustion temperature, this reduces the generation of NOx at the outer end A and shoulder B, where high temperatures occur.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の好適な第1実施例としてのガスタービ
ンエンジンの燃焼器の断面図、第2図は第1図要部の変
形例、第3図は第1実施例の効果を示すガスタービン出
力とN oxa度および水噴射割合とのグラフ、第4図
は燃料をガスと液体とに切換える2燃料方式のタービン
エンジンの燃焼器の配管系統図、第5図は第4図装置の
各遮断弁の開閉のタイムチャートである。 l ・・・・・燃焼器 7 ・・・・・燃料噴射装置 !■・・・・・噴霧円錐 12・・・・・燃焼器ライナ 15・・・・・メインスワラ !6・・・・・水噴射装置 18・・・・・水路 19・・・・・ノズル 20・・・・・水噴出孔 A ・・・・・外端部 B ・・・・・肩部 /   :燃焼器 7  :燃料噴射装作 l/ :噴霧同姓 /2 :燃m器ライナ /3 :メインスワラ l乙 :水噴射装置4 7ざ :水路 /9 :ノズル 20 :水噴出孔 A  :外端部 ガスタービン出力(kv) 第5図
FIG. 1 is a sectional view of a combustor of a gas turbine engine as a first preferred embodiment of the present invention, FIG. 2 is a modification of the main part of FIG. 1, and FIG. 3 shows the effect of the first embodiment. A graph of gas turbine output, NOx degree, and water injection ratio. Figure 4 is a piping system diagram of the combustor of a two-fuel turbine engine that switches fuel between gas and liquid. Figure 5 is a diagram of the combustor of the equipment shown in Figure 4. It is a time chart of opening and closing of each cutoff valve. l...Combustor 7...Fuel injection device! ■...Spray cone 12...Combustor liner 15...Main swirler! 6...Water injection device 18...Waterway 19...Nozzle 20...Water jet hole A...Outer end B...Shoulder/ : Combustor 7 : Fuel injection equipment / : Spray same name / 2 : Combustor liner / 3 : Main swirler : Water injection device 4 : Water channel / 9 : Nozzle 20 : Water nozzle hole A : Outer end part Gas turbine output (kv) Figure 5

Claims (1)

【特許請求の範囲】[Claims] 1、燃焼器(1)の軸中央に燃料噴射装置(7)と水噴
射装置(16)とを同心的に設け、更に燃料噴射装置(
7)および水噴射装置(16)の外周に燃焼器(1)に
燃焼用主空気を導入し旋回させるメインスワラ(15)
を同心的に設けたタービンエンジンの燃焼器において、
前記水噴射装置(16)の水路(18)先端のノズル(
19)の上流側に前記メインスワラ(15)に面して開
口する多数の水噴出孔(20)を穿設したことを特徴と
するタービンエンジンの燃焼器。
1. A fuel injection device (7) and a water injection device (16) are installed concentrically at the center of the axis of the combustor (1), and a fuel injection device (
7) and a main swirler (15) that introduces and swirls the main air for combustion into the combustor (1) around the outer periphery of the water injection device (16).
In a turbine engine combustor with concentrically installed
A nozzle (
19) A combustor for a turbine engine, characterized in that a large number of water ejection holes (20) are provided on the upstream side of the main swirler (15) and open facing the main swirler (15).
JP29926786A 1986-12-15 1986-12-15 Combustor of turbine engine Granted JPS63150516A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP29926786A JPS63150516A (en) 1986-12-15 1986-12-15 Combustor of turbine engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP29926786A JPS63150516A (en) 1986-12-15 1986-12-15 Combustor of turbine engine

Publications (2)

Publication Number Publication Date
JPS63150516A true JPS63150516A (en) 1988-06-23
JPH0573971B2 JPH0573971B2 (en) 1993-10-15

Family

ID=17870328

Family Applications (1)

Application Number Title Priority Date Filing Date
JP29926786A Granted JPS63150516A (en) 1986-12-15 1986-12-15 Combustor of turbine engine

Country Status (1)

Country Link
JP (1) JPS63150516A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4509270B2 (en) * 1998-12-09 2010-07-21 ゼネラル・エレクトリック・カンパニイ Fuel delivery apparatus and method
US11712090B2 (en) 2019-06-06 2023-08-01 Wonderland Switzerland Ag Magnetic buckle assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4509270B2 (en) * 1998-12-09 2010-07-21 ゼネラル・エレクトリック・カンパニイ Fuel delivery apparatus and method
US11712090B2 (en) 2019-06-06 2023-08-01 Wonderland Switzerland Ag Magnetic buckle assembly

Also Published As

Publication number Publication date
JPH0573971B2 (en) 1993-10-15

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