JPH066906B2 - Gas turbine power generator - Google Patents
Gas turbine power generatorInfo
- Publication number
- JPH066906B2 JPH066906B2 JP9321287A JP9321287A JPH066906B2 JP H066906 B2 JPH066906 B2 JP H066906B2 JP 9321287 A JP9321287 A JP 9321287A JP 9321287 A JP9321287 A JP 9321287A JP H066906 B2 JPH066906 B2 JP H066906B2
- Authority
- JP
- Japan
- Prior art keywords
- gas turbine
- air
- combustor
- combustion
- primary combustion
- 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.)
- Expired - Lifetime
Links
Landscapes
- Engine Equipment That Uses Special Cycles (AREA)
Description
【発明の詳細な説明】 〔発明の技術分野〕 本発明は主として低カロリーガスを燃料として安定した
燃焼を行なうガスタービン発電装置に関するものであ
る。Description: TECHNICAL FIELD OF THE INVENTION The present invention mainly relates to a gas turbine power generator that stably burns low-calorie gas as fuel.
近年、低カロリーガス燃料として燃焼器に使用してガス
タービンを駆動する際に、その燃焼器内に水蒸気をたく
さん含んだ燃焼用空気を供給することにより、空気と水
蒸気とからなる燃焼空気が著しく増量して、ガスタービ
ン発電のスシテムの出力を増大できることが知られてい
る。In recent years, when a gas turbine is driven by using it as a low-calorie gas fuel in a combustor, by supplying combustion air containing a large amount of steam into the combustor, combustion air composed of air and steam is remarkably produced. It is known that the output can be increased to increase the output of the gas turbine power generation system.
このような従来のガスタービン発電システムでは、水又
は水蒸気を多量に用いてコンプレッサの中間冷却と水蒸
気による排熱回収を行い、発電効率を高めている。In such a conventional gas turbine power generation system, a large amount of water or steam is used to perform intercooling of the compressor and recovery of exhaust heat by steam to improve power generation efficiency.
しかしながら、燃焼用空気流量の10％以上の水分を含む
燃焼空気を、低カロリーガス燃料を使用する燃焼器内に
供給した場合、特に一次燃焼領域で安定した燃焼が得ら
れないばかりか、失火してしまうという問題がある。However, when combustion air containing 10% or more of the flow rate of combustion air is supplied into the combustor using low-calorie gas fuel, stable combustion is not obtained, especially in the primary combustion region, and misfire occurs. There is a problem that it ends up.
本発明は前記のごとき従来の問題点を解消するためにな
されたものであり、燃焼器内で特に燃焼のために大切な
一次燃焼領域には、コンプレッサから吐出されて加熱さ
れた蒸気を含まない燃焼用空気を供給することにより、
低カロリーガス使用の場合でも安定した燃焼が得られる
と共に、燃焼器自体を損傷させないガスタービン発電装
置を提供することを目的としている。The present invention has been made to solve the conventional problems as described above, and the primary combustion region particularly important for combustion in the combustor does not include steam discharged from the compressor and heated. By supplying combustion air,
It is an object of the present invention to provide a gas turbine power generation device that can obtain stable combustion even when low-calorie gas is used and does not damage the combustor itself.
上記の目的を達成するため、本発明にかかるガスタービ
ン発電装置は、空気を圧縮する圧縮機と、該圧縮機で圧
縮させた圧縮空気と気体燃料とを導入しながら気体燃料
を燃焼させる燃焼器と、該燃焼器から流入した燃焼ガス
によって回転駆動されるガスタービンと、該ガスタービ
ンによって回転駆動される発電機とからなるガスタービ
ン発電装置において、前記圧縮機(3)で圧縮された圧縮
空気の一部を前記燃焼器の一端に配した１次燃焼領域に
１次燃焼空気として供給し、更に、前記圧縮空気の残り
を水直接接触式熱交換器を経て１次燃焼領域以外の領域
に２次、冷却用及び希釈空気として供給するようにした
ことを特徴とする。In order to achieve the above object, a gas turbine power generator according to the present invention includes a compressor that compresses air, and a combustor that burns gaseous fuel while introducing compressed air and gaseous fuel compressed by the compressor. And a gas turbine power generator comprising a gas turbine rotationally driven by the combustion gas flowing from the combustor and a generator rotationally driven by the gas turbine, the compressed air compressed by the compressor (3). Part of the compressed air is supplied as primary combustion air to a primary combustion area arranged at one end of the combustor, and the rest of the compressed air is passed through a water direct contact heat exchanger to an area other than the primary combustion area It is characterized in that it is supplied as secondary, cooling and dilution air.
従って、一次燃焼領域では水蒸気を含まない加熱された
空気を供給して低カロリー燃料でも安定した燃焼が得ら
れ、二次空気、冷却用空気及び希釈空気には蒸気を多量
に含む圧縮空気を供給することにより、燃焼器内の内筒
などの冷却効果及びタービンの入口温度の調整効果をは
たすと共に、空気に水蒸気を混合することにより風量を
増大してタービン出力を増大させることができる。ま
た、燃焼器内には、水を直接噴射させないので、燃焼器
を損傷させることがない。Therefore, in the primary combustion area, heated air that does not contain water vapor is supplied to obtain stable combustion even with low-calorie fuel, and compressed air containing a large amount of steam is supplied to the secondary air, cooling air, and dilution air. By doing so, the cooling effect of the inner cylinder in the combustor and the effect of adjusting the inlet temperature of the turbine can be achieved, and the amount of air can be increased by mixing steam with air to increase the turbine output. Moreover, since water is not directly injected into the combustor, the combustor is not damaged.
以下図面を参照して本発明の実施例を説明するが、図面
は本発明の一実施例におけるガスタービン用燃焼器の概
略系統図である。Embodiments of the present invention will be described below with reference to the drawings. The drawings are schematic system diagrams of a gas turbine combustor according to an embodiment of the present invention.
図において、ガスタービン１と低圧コンプレッサ２及び
高圧コンプレッサ３との間にはこのガスタービン１に燃
焼ガスを供給する燃焼器４が配設され、更にガスタービ
ン１にはこれにより駆動される発電機５が設けられてい
る。In the figure, a combustor 4 for supplying combustion gas to the gas turbine 1 is arranged between the gas turbine 1 and the low-pressure compressor 2 and the high-pressure compressor 3, and the gas turbine 1 is further driven by a generator. 5 are provided.
低圧コンプレッサ２と高圧コンプレッサ３との間に、低
圧コンプレッサ２で加圧され高圧コンプレッサ３に導入
される空気Ａを水Ｗで冷却する中間冷却器６が設けら
れ、高圧コンプレッサ３からの圧縮空気の約80％は水Ｗ
との直接接触式の熱交換器７へ送られ、ここで水蒸気を
含む圧縮空気となり、ガスタービン１からの排ガスＥで
加熱される熱交換器８で加熱された後、二次空気、冷却
用空気及び希釈空気として燃焼器４内に供給される。Between the low-pressure compressor 2 and the high-pressure compressor 3, an intercooler 6 that cools the air A pressurized by the low-pressure compressor 2 and introduced into the high-pressure compressor 3 with water W is provided. About 80% is water W
Is sent to a heat exchanger 7 of a direct contact type with, where it becomes compressed air containing water vapor, and after being heated by a heat exchanger 8 heated by exhaust gas E from the gas turbine 1, secondary air, for cooling It is supplied into the combustor 4 as air and dilution air.
そこで、本実施例では、高圧コンプレッサ３から吐出さ
れた圧縮空気の約20％を熱交換器７を通さず、直接ガス
タービン１からの排ガスＥで加熱される熱交換器９で加
熱した後、燃焼器４の燃料Ｆが噴射される一次燃焼領域
４Ａに一次燃焼空気として供給されている。Therefore, in this embodiment, about 20% of the compressed air discharged from the high-pressure compressor 3 is directly heated by the heat exchanger 9 heated by the exhaust gas E from the gas turbine 1 without passing through the heat exchanger 7, The fuel F of the combustor 4 is supplied as primary combustion air to the primary combustion region 4A where it is injected.
上記のごときガスタービン燃焼器で、その燃焼特性を決
定するのは一次燃焼領域4Aであり、従来のシステムでは
高圧コンプレッサ３から吐出した圧縮空気の全量が水Ｗ
との直接接触式の熱交換器７に流入し、水蒸気を多量に
含む燃焼空気となり、燃焼器４内に導入され、一次燃焼
領域4Aでの燃焼の安定性を欠いていたのに対し、本発明
では一次燃焼領域には水蒸気を含まない一次燃焼空気が
供給されている。In the gas turbine combustor as described above, it is the primary combustion region 4A that determines the combustion characteristics. In the conventional system, the total amount of compressed air discharged from the high pressure compressor 3 is water W.
While flowing into the heat exchanger 7 of the direct contact type with and becoming combustion air containing a large amount of steam and being introduced into the combustor 4 and lacking stability of combustion in the primary combustion region 4A, In the invention, the primary combustion region is supplied with the primary combustion air containing no steam.
一方、一次燃焼領域4A以外の燃焼器４内への空気は、直
接接触式の熱交換器７を経由するために多量の水蒸気を
含んでおり、燃焼器４内の内筒を効率良く冷却すると共
に、タービン入口温度を適度に調整できる。On the other hand, the air into the combustor 4 other than the primary combustion region 4A contains a large amount of steam because it passes through the direct contact heat exchanger 7, and efficiently cools the inner cylinder in the combustor 4. In addition, the turbine inlet temperature can be adjusted appropriately.
以上に説明したごとく、本発明は、燃焼上最も大切な一
次燃焼領域には水蒸気を含まない燃焼空気が供給される
ので、低カロリーガスでも安定して燃焼できるという効
果があり、また、ガスタービンの排熱を燃焼用空気及び
水蒸気によって回収することによっても発電効率が向上
するという効果もある。As described above, the present invention has an effect that stable combustion can be performed even with low-calorie gas, because the combustion air that does not contain steam is supplied to the primary combustion region that is most important for combustion. There is also an effect that the power generation efficiency is improved by recovering the exhaust heat of 2 by combustion air and steam.
従って、水蒸気を多量に含む空気を１次燃焼領域以外の
領域に供給しても、起動から定格運転までの広範囲にわ
たる安定した燃焼ができ、低NOxの燃焼ができるという
利点がある。Therefore, even if air containing a large amount of water vapor is supplied to a region other than the primary combustion region, there is an advantage that stable combustion can be performed over a wide range from startup to rated operation, and low NOx combustion can be performed.
更に、水蒸気を含む空気を供給することにより、燃焼器
内の内筒が低温に保持でき、部品寿命の延長が図れると
いう利点がある。また、燃焼器内には、水を直接噴射さ
せないので、燃焼器を損傷させることがないという利点
もある。Further, by supplying the air containing the steam, there is an advantage that the inner cylinder in the combustor can be kept at a low temperature and the life of the parts can be extended. Further, since water is not directly injected into the combustor, there is an advantage that the combustor is not damaged.
本発明は主として中・低カロリーガスを燃料として使用
するガスタービン用燃焼器に対して有効に適用すること
ができる。INDUSTRIAL APPLICABILITY The present invention can be effectively applied to a gas turbine combustor that mainly uses medium / low calorie gas as a fuel.
図面は本発明の一実施例におけるガスタービン用燃焼器
の概略系統図である。 １…ガスタービン、２…低圧コンプレッサ、３…高圧コ
ンプレッサ、４…燃焼器、４Ａ…一次燃焼領域、７…水
との直接接触式の熱交換器、９…排ガスで加熱される熱
交換器、Ａ…空気、Ｅ…排ガス、Ｗ…水。The drawing is a schematic system diagram of a combustor for a gas turbine in one embodiment of the present invention. DESCRIPTION OF SYMBOLS 1 ... Gas turbine, 2 ... Low-pressure compressor, 3 ... High-pressure compressor, 4 ... Combustor, 4A ... Primary combustion area, 7 ... Direct-contact heat exchanger with water, 9 ... Heat exchanger heated by exhaust gas, A ... Air, E ... Exhaust gas, W ... Water.
Claims (1)
させた圧縮空気と気体燃料とを導入しながら気体燃料を
燃焼させる燃焼器と、該燃焼器から流入した燃焼ガスに
よって回転駆動されるガスタービンと、該ガスタービン
によって回転駆動される発電機とからなるガスタービン
発電装置において、前記圧縮機(3)で圧縮された圧縮空
気の一部を前記燃焼器(4)の一端に配した１次燃焼領域
(4A)に１次燃焼空気として供給し、更に、前記圧縮空気
の残りを水直接接触式熱交換器(7)を経て１次燃焼領域
(4A)以外の領域に２次、冷却用及び希釈空気として供給
するようにしたことを特徴とするガスタービン発電装
置。1. A compressor for compressing air, a combustor for combusting a gaseous fuel while introducing compressed air and a gaseous fuel compressed by the compressor, and a rotary drive by a combustion gas flowing from the combustor. In a gas turbine power generator comprising a gas turbine to be operated and a generator rotationally driven by the gas turbine, a part of the compressed air compressed by the compressor (3) is applied to one end of the combustor (4). Primary combustion area arranged
(4A) is supplied as primary combustion air, and the rest of the compressed air is passed through the water direct contact heat exchanger (7) to the primary combustion region.
A gas turbine power generator characterized in that it is supplied to areas other than (4A) as secondary, cooling and dilution air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9321287A JPH066906B2 (en) | 1987-04-17 | 1987-04-17 | Gas turbine power generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9321287A JPH066906B2 (en) | 1987-04-17 | 1987-04-17 | Gas turbine power generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63259324A JPS63259324A (en) | 1988-10-26 |
| JPH066906B2 true JPH066906B2 (en) | 1994-01-26 |
Family
ID=14076258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9321287A Expired - Lifetime JPH066906B2 (en) | 1987-04-17 | 1987-04-17 | Gas turbine power generator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH066906B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BRPI0821737A8 (en) * | 2007-12-21 | 2018-12-18 | Green Prtners Tech Holdings Gmbh | open and closed and semi-closed gas turbine systems for power generation and expansion turbine and closed piston compressor, turbocharger, and operating gas compression open cycle gas turbine power production methods in turbocharger and engine system operation |
-
1987
- 1987-04-17 JP JP9321287A patent/JPH066906B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63259324A (en) | 1988-10-26 |
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