JPS5950857B2 - Gas turbine equipment that uses low calorific value gas as fuel - Google Patents
Gas turbine equipment that uses low calorific value gas as fuelInfo
- Publication number
- JPS5950857B2 JPS5950857B2 JP16122181A JP16122181A JPS5950857B2 JP S5950857 B2 JPS5950857 B2 JP S5950857B2 JP 16122181 A JP16122181 A JP 16122181A JP 16122181 A JP16122181 A JP 16122181A JP S5950857 B2 JPS5950857 B2 JP S5950857B2
- Authority
- JP
- Japan
- Prior art keywords
- gas
- air
- fuel
- calorific value
- low calorific
- 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
Links
- 239000000446 fuel Substances 0.000 title claims description 8
- 239000007789 gas Substances 0.000 claims description 39
- 239000002737 fuel gas Substances 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 7
- 238000002485 combustion reaction Methods 0.000 claims description 5
- 239000000567 combustion gas Substances 0.000 claims description 3
- 238000004880 explosion Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
- F02C3/20—Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products
- F02C3/22—Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products the fuel or oxidant being gaseous at standard temperature and pressure
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Description
【発明の詳細な説明】
本発明は低発熱量のガスを燃料とするガスタービン設備
の改良に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to improvements in gas turbine equipment that uses gas with a low calorific value as fuel.
最近製鉄所等において省エネルギ一対策が進展した結果
、従来供給がうまくバランスしていた高炉ガスに余剰が
生じ、徐々に高炉ガスを主たる燃料とするガスタービン
とその排ガスエネルギーを利用した汽力タービンとから
なるコンバインドサイクル発信設備が普及されるように
なった。As a result of recent progress in energy saving measures at steel works, etc., a surplus of blast furnace gas, which had previously been well-balanced in supply, has been created, and gradually gas turbines that use blast furnace gas as the main fuel and steam turbines that use the energy of the exhaust gas are being installed. Combined cycle transmission equipment consisting of
ところで、高炉ガスの場合、可燃成分が少ないことから
、その発熱量は７００ＫＣａ１／Ｎｍ３程度しかない。By the way, in the case of blast furnace gas, its calorific value is only about 700 KCa1/Nm3 because it contains few combustible components.
このため高炉ガスを使うガスタービンは通常の石油燃料
を使うタービンとは寸法的な差異、例えば高炉ガス中の
燃料成分が少ないことから、空気コンプレッサ一部は小
型に、タービン部は大型になるという差異を生じ、どう
しても新たに設計することを必要とした。For this reason, gas turbines that use blast furnace gas have dimensional differences from turbines that use regular petroleum fuel.For example, because there are fewer fuel components in blast furnace gas, the air compressor part is smaller and the turbine part is larger. This created a difference and required a new design.
しかし、コンプレッサーを含めてガスタービン設備を新
たに設計し商品化するには、多額の開発費と時間を要す
るという極めて大きな欠点がある。However, there is a huge drawback in that it requires a large amount of development cost and time to newly design and commercialize gas turbine equipment, including the compressor.
本発明はかかる開発費の増額を伴わず、簡単に商品化す
ることを目的とし、既に完成され使用されている従来型
式の機器を用い、特に設計の難かしいコンプレッサーを
流用し、簡単なタービン側の設計で対応することのでき
るガスタービン設備を提供するものである。The purpose of the present invention is to easily commercialize the product without increasing development costs, by using conventional equipment that has already been completed and in use, by reusing a compressor that is particularly difficult to design, and by simplifying the turbine side. The purpose of this project is to provide gas turbine equipment that can be adapted to the following designs.
以下本発明の一実施例を図面に基づいて説明する。An embodiment of the present invention will be described below based on the drawings.
ガスホルダー１で貯えられた低発熱量の高炉ガスは燃料
ガスコンプレッサー２で加圧されて燃焼器３に供給され
、一方燃焼用空気は空気コンプレッサー４で加圧されて
燃焼器３に供給され、これら燃料ガスと空気は燃焼器３
で混合燃焼せしめられ、この燃焼ガスはガスタービン５
を駆動する。The low calorific value blast furnace gas stored in the gas holder 1 is pressurized by a fuel gas compressor 2 and supplied to the combustor 3, while the combustion air is pressurized by an air compressor 4 and supplied to the combustor 3, These fuel gas and air are transferred to the combustor 3
This combustion gas is mixed and combusted in the gas turbine 5.
to drive.
前記空気コンプレッサー４は従来型式のものが採用され
、前記ガスタービン５に連結されている。The air compressor 4 is of a conventional type and is connected to the gas turbine 5.
このガスタービン５の回転力は歯車装置６を介して前記
燃料ガスコンプレッサー２に伝達されてこれを駆動する
とともに、発電機７にも伝達されてこれを駆動し、高炉
ガスのエネルギー回収が行なわれる。The rotational force of the gas turbine 5 is transmitted to the fuel gas compressor 2 via the gear device 6 to drive it, and is also transmitted to the generator 7 to drive it, thereby recovering energy from the blast furnace gas. .
またガスタービン５からの排気ガスは排ガスボイラー８
に導入されて排熱回収が行なわれる。In addition, the exhaust gas from the gas turbine 5 is transferred to an exhaust gas boiler 8.
The waste heat is recovered.
本発明では、空気コンプレッサー４に供給されるのは燃
焼用空気のみではなく、ガスホルダー１の高炉ガスの一
部が燃料ガス量制御弁９を介して導入されるとともに、
空気も空気量制御弁１０を介してその供給量を制限され
て導入される。In the present invention, not only combustion air is supplied to the air compressor 4, but also a part of the blast furnace gas in the gas holder 1 is introduced via the fuel gas amount control valve 9.
Air is also introduced via the air amount control valve 10 with its supply amount being limited.
これらの供給量は、燃料ガス量をＱａ２、燃焼用空気量
をＱａとしたときに、Ｑｑｚ／Ｑａ ＋Ｑｑ２からあら
かじめ算出された爆発限界の比率を考慮に入れて安全範
囲を与えた混合比率になるように設定される必要があり
、前記燃料ガス量制御弁９および空気量制御弁１０の開
度比は混合比率設定器１１によりそれぞれの供給量が前
記安全範囲をもった混合比率になるような割合に設定さ
れる。These supply amounts are a mixture ratio that gives a safe range by taking into account the explosion limit ratio calculated in advance from Qqz/Qa + Qq2, where the amount of fuel gas is Qa2 and the amount of combustion air is Qa. The opening ratios of the fuel gas amount control valve 9 and the air amount control valve 10 must be set by the mixture ratio setting device 11 so that the respective supply amounts become a mixture ratio within the safety range. Set to percentage.
さらにガスホルダー１から燃料ガスコンプレッサー２に
供給される燃料ガス量Ｑｑｚは流量計１２により検出さ
れ、空気量制御器１３はこの検出量Ｑｑ１に基づいて、
前記安全範囲をもった混合比率を考慮に入れて、全燃料
ガス量Ｑｑ１＋Ｑ（１２と空気量Ｑａが最適燃料比にな
るようなＱａを演算し、混合比率設定器１１がこのＱａ
倍信号基づいて空気量制御弁１０と燃料ガス量制御弁９
の開度をそれぞれ決定する。Furthermore, the amount of fuel gas Qqz supplied from the gas holder 1 to the fuel gas compressor 2 is detected by the flow meter 12, and the air amount controller 13, based on this detected amount Qq1,
Taking into account the mixture ratio with the safe range, calculates Qa such that the total fuel gas amount Qq1+Q(12 and the air amount Qa become the optimal fuel ratio, and the mixture ratio setting device 11 calculates this Qa.
Based on the multiplication signal, the air amount control valve 10 and the fuel gas amount control valve 9
Determine the opening degree of each.
以上本発明によれば、空気コンプレッサーに導入される
空気中に低発熱量ガスを混入するようにしたので、空気
コンプレッサーとして従来型式のものを使用したとして
も、空気過剰率を低下でき、熱損失を防止できるととも
に、燃焼器内で生成された燃焼ガスによって駆動される
タービン部は単に膨張過程を対象とした設計法をとるだ
けでよく、その設計は容易となる。As described above, according to the present invention, since a low calorific value gas is mixed into the air introduced into the air compressor, even if a conventional type air compressor is used, the excess air ratio can be reduced and the heat loss can be reduced. In addition, the turbine section, which is driven by the combustion gas generated in the combustor, can be easily designed by simply taking a design method that targets the expansion process.
さらに、空気コンプレッサーに導入される空気量と低発
熱量ガス量との混合比率を制御するのに、混合比率設定
器により空気量制御弁及び燃料ガス量制御弁の開度を調
節して行なうようにしたため、確実に混合比率を爆発限
界以下に抑えることができる。Furthermore, the mixing ratio between the amount of air introduced into the air compressor and the amount of low calorific value gas is controlled by adjusting the opening degrees of the air amount control valve and the fuel gas amount control valve using a mixing ratio setting device. This makes it possible to reliably keep the mixture ratio below the explosive limit.
図面は本発明の一実施例を示す構成図である。
１・・・・・・ガスホルダー、２・・・・・・燃料ガス
コンプレッサー、３・・・・・・燃焼器、４・・・・・
・空気コンプレッサー、５・・・・・・ガスタービン、
７・・・・・・発電機、９・・・・・・燃料ガス量制御
弁、１０・・・・・・空気量制御弁、１１・・・・・・
混合比率設定器、１３・・・・・・空気量制御器。The drawing is a configuration diagram showing an embodiment of the present invention. 1...Gas holder, 2...Fuel gas compressor, 3...Combustor, 4...
・Air compressor, 5...gas turbine,
7... Generator, 9... Fuel gas amount control valve, 10... Air amount control valve, 11...
Mixing ratio setting device, 13...Air amount controller.
Claims (1)
して燃焼器に導入し、ガスタービンに連結された空気コ
ンプレッサーからの加圧空気と前記燃焼器において混合
燃焼せしめ、この燃焼ガスにより前記ガスタービンを駆
動するガスタービン設備において、空気コンプレッサー
に空気を導入する経路中に空気量制御弁を設け、低発熱
量ガスを前記空気の導入経路を介して空気コンプレッサ
ーに導入する経路を設けると共にこの経路中に燃料ガス
量制御弁を設け、前記燃料ガスコンプレッサーに導入さ
れる低発熱量ガス量に基づいて、空気コンプレッサーに
導入される空気量と低発熱量ガス量との混合比率を爆発
限界以下に抑えるように、前記空気量制御弁及び燃料ガ
ス量制御弁の開度を設定する混合比率設定器を設けると
共に、この低発熱量ガスが混入された混入空気を前記燃
料ガスコンプレッサーからの燃料ガスと前記燃焼器にお
いて混合燃焼させるようにしたことを特徴とする低発熱
量ガスを燃料とするガスタービン設備。1. A low calorific value gas is pressurized by a fuel gas compressor and introduced into a combustor, mixed and combusted in the combustor with pressurized air from an air compressor connected to a gas turbine, and this combustion gas drives the gas turbine. In gas turbine equipment, an air amount control valve is provided in the path for introducing air into the air compressor, and a path is provided for introducing low calorific value gas into the air compressor via the air introduction path, and fuel is supplied in this path. A gas amount control valve is provided, and based on the amount of low calorific value gas introduced to the fuel gas compressor, the mixing ratio of the amount of air introduced to the air compressor and the amount of low calorific value gas is suppressed to below the explosion limit. , a mixture ratio setting device is provided for setting the opening degrees of the air amount control valve and the fuel gas amount control valve, and the mixed air mixed with the low calorific value gas is mixed with the fuel gas from the fuel gas compressor and the combustor. 1. Gas turbine equipment using low calorific value gas as fuel, characterized in that mixed combustion is carried out in the combustion chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16122181A JPS5950857B2 (en) | 1981-10-09 | 1981-10-09 | Gas turbine equipment that uses low calorific value gas as fuel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16122181A JPS5950857B2 (en) | 1981-10-09 | 1981-10-09 | Gas turbine equipment that uses low calorific value gas as fuel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5862320A JPS5862320A (en) | 1983-04-13 |
| JPS5950857B2 true JPS5950857B2 (en) | 1984-12-11 |
Family
ID=15730918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16122181A Expired JPS5950857B2 (en) | 1981-10-09 | 1981-10-09 | Gas turbine equipment that uses low calorific value gas as fuel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5950857B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60222531A (en) * | 1984-04-20 | 1985-11-07 | Mitsui Eng & Shipbuild Co Ltd | Gas turbine driving system with fuel gas compressor |
-
1981
- 1981-10-09 JP JP16122181A patent/JPS5950857B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5862320A (en) | 1983-04-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3982878A (en) | Burning rate control in hydrogen fuel combustor | |
| EP1503142B1 (en) | Operating method for coal gasification combined cycle power plant | |
| US4757787A (en) | Method of and an arrangement for burning a liquid or gaseous fuel in a combustion chamber of an internal combustion engine | |
| US5682737A (en) | Method for starting up a combination gas and steam power plant | |
| US8117823B2 (en) | Method and system for increasing modified wobbe index control range | |
| US4706612A (en) | Turbine exhaust fed low NOx staged combustor for TEOR power and steam generation with turbine exhaust bypass to the convection stage | |
| US5029442A (en) | Heat feeding apparatus for internal combustion engine having supercharger attached | |
| GB1531245A (en) | Gas turbine systems | |
| GB1511896A (en) | Generating plant and method of starting up a generating plant | |
| GB2097476A (en) | A method for using residue gas in gas turbines | |
| JPS5950857B2 (en) | Gas turbine equipment that uses low calorific value gas as fuel | |
| Coelho et al. | Cogeneration—the development and implementation of a cogeneration system for a chemical plant, using a reciprocating heavy fuel oil engine with a supplementary fired boiler | |
| Godin et al. | Theoretical analysis of environmental and energetic performance of very high temperature turbo-jet engines | |
| CN111058967A (en) | High-frequency detonation aerospace engine and control method | |
| JPS54135911A (en) | Gas turbine | |
| JPS632776Y2 (en) | ||
| RU25069U1 (en) | HEAT GENERATOR | |
| JPH0583742B2 (en) | ||
| JPS6115393Y2 (en) | ||
| JPS56101025A (en) | System for controlling guide vane at air inlet of gas turbine | |
| Krockow et al. | Alternative fuels: burner concepts and emission characteristics of a silo combustor | |
| Battista et al. | Low heating value fuel burning capabilities of general electric industrial gas turbines | |
| JPS6133978B2 (en) | ||
| Marin et al. | Study of the Properties of Fuel Gas in Gas Turbine Plants Depending on Its | |
| RU1777628C (en) | Method of fuel delivery into combustion chamber of gas-turbine engine |