JPS63248931A - Deicing method for compressor inlet air moisture - Google Patents
Deicing method for compressor inlet air moistureInfo
- Publication number
- JPS63248931A JPS63248931A JP8291987A JP8291987A JPS63248931A JP S63248931 A JPS63248931 A JP S63248931A JP 8291987 A JP8291987 A JP 8291987A JP 8291987 A JP8291987 A JP 8291987A JP S63248931 A JPS63248931 A JP S63248931A
- Authority
- JP
- Japan
- Prior art keywords
- compressor
- steam
- inlet
- 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
- 238000000034 method Methods 0.000 title claims description 7
- 230000008014 freezing Effects 0.000 claims abstract description 11
- 238000007710 freezing Methods 0.000 claims abstract description 11
- 238000011084 recovery Methods 0.000 claims abstract description 5
- 239000007789 gas Substances 0.000 claims description 19
- 239000002918 waste heat Substances 0.000 claims description 4
- 230000002265 prevention Effects 0.000 claims 1
- 238000005266 casting Methods 0.000 abstract 2
- 150000001875 compounds Chemical class 0.000 abstract 1
- 238000001514 detection method Methods 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 239000002699 waste material Substances 0.000 abstract 1
- 239000007921 spray Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008713 feedback mechanism Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/02—De-icing means for engines having icing phenomena
-
- 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
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/04—Air intakes for gas-turbine plants or jet-propulsion plants
- F02C7/047—Heating to prevent icing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、ガスタービンの軸流圧；縮機に係わり特に、
冬場にインレットガイドベーンを絞った場合、空気中の
水分が氷結することを防止する方法に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an axial flow pressure compressor of a gas turbine, and in particular,
This invention relates to a method for preventing moisture in the air from freezing when the inlet guide vane is squeezed in winter.
従来、寒冷地において、圧縮機入口空気中の水分が氷結
することを防止するためには、圧縮機出口の高温（２５
０〜３５０℃）空気を一部抽気し、インレットフィルタ
ー前面まで導き、インレットフィルターに吸入される大
気と混合させ、大気の平均温度を高くすることにより、
水分の氷結防止を図っていた。Conventionally, in order to prevent moisture in the air at the compressor inlet from freezing in cold regions, high temperatures at the compressor outlet (25
By extracting some of the air (0 to 350℃), guiding it to the front of the inlet filter, and mixing it with the air sucked into the inlet filter, increasing the average temperature of the air,
It was intended to prevent water from freezing.
上記従来技術は、ガスタービンの熱効率を、大きく、低
下させるため、現在の省エネ時代の要求にあわない点が
、問題であった。The problem with the above conventional technology is that it does not meet the demands of the current energy saving era because it significantly reduces the thermal efficiency of the gas turbine.
本発明の目的は、ガスタービンの熱効率を、低下させず
、またプラントとしての熱効率も、比較的高く保持でき
るガスタービン圧縮機入口空気中の水分の氷結防止法を
堤供することにある。An object of the present invention is to provide a method for preventing water from freezing in the air at the inlet of a gas turbine compressor, which does not reduce the thermal efficiency of the gas turbine and can maintain the thermal efficiency of the plant at a relatively high level.
特に、本発明の方法は、ガスタービン低Ｎｏつ燃焼器を
用いる複合発電所に適している。低ＮＯｘ燃焼器は、燃
空比変化をなるべく少なく制御することが必要であり、
これは、インレノ１−ガイドベーンの広域操作により達
成できる。In particular, the method of the invention is suitable for combined power plants using gas turbine low-number combustors. For low NOx combustors, it is necessary to control the fuel-air ratio changes as much as possible.
This can be achieved by wide area operation of the Inreno 1 guide vanes.
上記目的は、現在建設が進められているガスタービンと
蒸気タービンの複合発電所において、廃熱回収熱交換器
または蒸気タービンから抽気して得られる高温の蒸気を
圧縮機入口空気と混合させることにより達成される。The above purpose is achieved by mixing high-temperature steam extracted from a waste heat recovery heat exchanger or steam turbine with compressor inlet air in a gas turbine and steam turbine combined power plant currently under construction. achieved.
複合発電所においては、ガスタービンと蒸気タービンの
出力比率は、普通約２＝１であり、例えば、ガスタービ
ンより１％の空気流量を抽気すると、約２／３％のプラ
ント効率低下がある。蒸気タービンより１％の抽気を行
なうと１／３％のプラント効率低下がある。In a combined power plant, the output ratio between the gas turbine and the steam turbine is typically about 2=1, and for example, if 1% of the air flow is extracted from the gas turbine, there is a reduction in plant efficiency of about 2/3%. If 1% of air is extracted from the steam turbine, the plant efficiency will decrease by 1/3%.
ところで、空気と蒸気の比熱の比率は、１：２であり、
空気２％の抽気と蒸気１％の抽気のカロリーは同じであ
る。すなわち、蒸気タービン１％の抽気は、ガスタービ
ン２％の抽気に対応し、プラント効率低下として、前者
の１％のプラント効率低下は、後者の４％の効率低下に
対応する。By the way, the ratio of specific heats of air and steam is 1:2,
The calories of 2% air bleed and 1% steam bleed are the same. That is, 1% of steam turbine bleed air corresponds to 2% of gas turbine bleed air, and a 1% decrease in plant efficiency in the former corresponds to a 4% decrease in efficiency in the latter.
蒸気を圧縮機入口空気に混合することは、プラント効率
低下を防ぐ方法として、圧縮機吐出空気を用いる方法よ
り優れている。Mixing steam with compressor inlet air is superior to using compressor discharge air as a method of preventing plant efficiency loss.
以下１本発明を、一実施例により説明する。第１図は、
複合発電所の構成を示す。１はガスタービンであり、２
は発電機、３は蒸気タービンであり、４は、廃熱回収蒸
気発生器（ＨＲ５Ｇ）を示す。この方式は、−軸形と呼
ばれ、一つのガスタービン１と一つの蒸気タービン３が
１つの発電機２に直結されていることが特徴である。他
に、多軸方式があり、複数のガスタービンと一つの蒸気
タービンを組合せるものであり、本発明は、複合発電所
の方式に依らない。ガスタービン１は、圧縮機５．燃焼
器６．タービンより構成されており、人気８は、圧縮機
入口ケーシング９より圧縮機５に吸入される。The present invention will be explained below by way of an example. Figure 1 shows
The configuration of a combined power plant is shown. 1 is a gas turbine; 2
is a generator, 3 is a steam turbine, and 4 is a waste heat recovery steam generator (HR5G). This system is called a -shaft type, and is characterized in that one gas turbine 1 and one steam turbine 3 are directly connected to one generator 2. There is also a multi-shaft system in which multiple gas turbines and one steam turbine are combined, and the present invention does not rely on the combined power plant system. The gas turbine 1 includes a compressor 5. Combustor 6. Composed of a turbine, the compressor 8 is sucked into the compressor 5 through a compressor inlet casing 9.
この入口ケーシング９には、取付角が可変のインレット
ガイドベーン１０が存在し、ガスタービンの起動、停止
時、および、ＨＲ８Ｇ４へ流入するガスタービン排ガス
１１の温度調節するとき、開閉する。冬場においては、
大気中の水分が、インレットガイドベーン１０を絞った
とき、その下流で、静圧低下のため、氷結し圧縮機５の
翼１１に当り、翼１１を変形させるおそれがある。これ
を防ぐため、圧縮機入口空気（大気）８は、加熱する必
要があり、蒸気１２を、圧縮機入口ケーシング９内ヘス
プレーし、氷結防止を図る。入口ケーシング９には、そ
の周囲に複数のスプレーノズル１３があり、大気温度が
例えば、５℃以下になれば、蒸気１２をスプレーする。This inlet casing 9 has an inlet guide vane 10 with a variable installation angle, which opens and closes when starting and stopping the gas turbine and when adjusting the temperature of the gas turbine exhaust gas 11 flowing into the HR8G4. In winter,
When moisture in the atmosphere squeezes the inlet guide vane 10, there is a risk that the moisture in the atmosphere will freeze and hit the blades 11 of the compressor 5 due to the drop in static pressure downstream thereof, causing the blades 11 to become deformed. To prevent this, the compressor inlet air (atmosphere) 8 needs to be heated and steam 12 is sprayed into the compressor inlet casing 9 to prevent freezing. The inlet casing 9 has a plurality of spray nozzles 13 around it, which spray steam 12 when the atmospheric temperature falls below, for example, 5°C.
スプレー量は、インレットガイドベーン１０の下流の温
度センサー１４による温度を監視することにより決める
。The amount of spray is determined by monitoring the temperature by a temperature sensor 14 downstream of the inlet guide vane 10.
これらのフィードバック機構により、大気が変動しても
、インレットガイドベーン１０の広域操作が可能となる
。These feedback mechanisms enable wide-area operation of the inlet guide vane 10 even when the atmosphere changes.
本発明によれば、蒸気を圧縮機入口空気に混合させるこ
とにより、空気中の水分の氷結防止を行なうことができ
る。特に、燃焼器の燃空比制御を行なうためインレット
ガイドベーンを、従来よりも広域まで、氷結することな
く、絞ることができる。According to the present invention, by mixing steam with compressor inlet air, moisture in the air can be prevented from freezing. In particular, in order to control the fuel-air ratio of the combustor, the inlet guide vane can be narrowed over a wider area than before without freezing.
第１図は１本発明を実施した複合発電所の系統図、第２
図は、本発明の他の実施例の系統図である。
１・・・ガスタービン、２・・・発電所、３・・・蒸気
タービン、４・・・ＨＲ８Ｇ、１０・・・インレットガ
イドベーン、１３・・・蒸気ノズル、１４・・・温度セ
ンサー、１５・・・復水器、１６・・・復水ポンプ、１
７・・・補給水。 、り・ミ１−１１ユ。
代理人 弁理士 小川勝男 °′：パ・′Ｐ−＼２１
．／
苓λ図Figure 1 is a system diagram of a combined power plant in which the present invention has been implemented;
The figure is a system diagram of another embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Gas turbine, 2... Power plant, 3... Steam turbine, 4... HR8G, 10... Inlet guide vane, 13... Steam nozzle, 14... Temperature sensor, 15 ... Condenser, 16 ... Condensate pump, 1
7...Supplementary water. , Ri Mi 1-11 Yu. Agent Patent attorney Katsuo Ogawa °': Pa・'P-\21
．． / Rei λ figure
Claims (1)
交換器からなる複合発電所において蒸気タービンの抽気
または廃熱回収熱交換器の抽気による蒸気を、前述ガス
タービン圧縮機入口において、圧縮機に吸入される大気
と混合することにより、反縮機入口空気温度を上昇させ
て水分の永結を防止する圧縮機入口空気水分の氷結防止
法。 ２、圧縮機入口ガイドベーンの下流に、温度センサーを
設け、空気温度が規定値より低くなつたとき、蒸気を供
給する制御を行なう特許請求の範囲第１項記載の圧縮機
入口空気水分の氷結防止法。[Scope of Claims] 1. In a combined power plant consisting of a gas turbine, a steam turbine, a generator, and a waste heat recovery heat exchanger, steam from the steam turbine's extracted air or the extracted air from the waste heat recovery heat exchanger is compressed by the gas turbine. A method to prevent moisture from freezing at the compressor inlet by mixing it with the air sucked into the compressor at the machine inlet, increasing the air temperature at the recondenser inlet and preventing moisture from permanently condensing. 2. Freezing of air moisture at the compressor inlet as set forth in claim 1, wherein a temperature sensor is provided downstream of the compressor inlet guide vane, and control is performed to supply steam when the air temperature becomes lower than a specified value. Prevention method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8291987A JPS63248931A (en) | 1987-04-06 | 1987-04-06 | Deicing method for compressor inlet air moisture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8291987A JPS63248931A (en) | 1987-04-06 | 1987-04-06 | Deicing method for compressor inlet air moisture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63248931A true JPS63248931A (en) | 1988-10-17 |
Family
ID=13787653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8291987A Pending JPS63248931A (en) | 1987-04-06 | 1987-04-06 | Deicing method for compressor inlet air moisture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63248931A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997043530A1 (en) * | 1996-05-14 | 1997-11-20 | The Dow Chemical Company | Process and apparatus for achieving power augmentation in gas turbines via wet compression |
| US5930990A (en) * | 1996-05-14 | 1999-08-03 | The Dow Chemical Company | Method and apparatus for achieving power augmentation in gas turbines via wet compression |
| US6378284B1 (en) * | 1995-12-28 | 2002-04-30 | Hitachi, Ltd. | Gas turbine, combined cycle plant and compressor |
| GB2442967A (en) * | 2006-10-21 | 2008-04-23 | Rolls Royce Plc | Anti-icing / de-icing system in an engine utilizing jets of hot air |
| JP2009041567A (en) * | 2007-08-07 | 2009-02-26 | General Electric Co <Ge> | Method and apparatus for supplying pressure for spray inlet temperature suppressor of gas turbine |
| JP2009197797A (en) * | 2008-02-19 | 2009-09-03 | General Electric Co <Ge> | System and method for exhaust gas recirculation (egr) in turbine engine |
| EP2781698A1 (en) * | 2013-03-20 | 2014-09-24 | Siemens Aktiengesellschaft | Gas turbine and method for operating the gas turbine |
| CN103758588B (en) * | 2014-02-19 | 2015-09-09 | 襄阳三鹏航空科技有限公司 | A kind of shell mechanism of aircraft turbosupercharger and manufacturing process thereof |
| JP2016102415A (en) * | 2014-11-27 | 2016-06-02 | 東京電力株式会社 | Turbine plant and intake air cooling method for turbine plant |
| CN108454786A (en) * | 2017-01-16 | 2018-08-28 | 诺沃皮尼奥内技术股份有限公司 | The method of pontoon and operation pontoon |
-
1987
- 1987-04-06 JP JP8291987A patent/JPS63248931A/en active Pending
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6378284B1 (en) * | 1995-12-28 | 2002-04-30 | Hitachi, Ltd. | Gas turbine, combined cycle plant and compressor |
| US6581368B2 (en) | 1995-12-28 | 2003-06-24 | Hitachi, Ltd. | Gas turbine, combined cycle plant and compressor |
| US6598401B1 (en) * | 1995-12-28 | 2003-07-29 | Hitachi, Ltd. | Gas turbine combined cycle plant and compressor |
| US7404287B2 (en) | 1995-12-28 | 2008-07-29 | Hitachi, Ltd. | Gas turbine, combined cycle plant and compressor |
| US7441399B2 (en) | 1995-12-28 | 2008-10-28 | Hitachi, Ltd. | Gas turbine, combined cycle plant and compressor |
| US5867977A (en) * | 1996-05-14 | 1999-02-09 | The Dow Chemical Company | Method and apparatus for achieving power augmentation in gas turbines via wet compression |
| US5930990A (en) * | 1996-05-14 | 1999-08-03 | The Dow Chemical Company | Method and apparatus for achieving power augmentation in gas turbines via wet compression |
| EP1108870A3 (en) * | 1996-05-14 | 2003-12-17 | The Dow Chemical Company | Process and apparatus for achieving power augmentation in gas turbines via wet compression |
| WO1997043530A1 (en) * | 1996-05-14 | 1997-11-20 | The Dow Chemical Company | Process and apparatus for achieving power augmentation in gas turbines via wet compression |
| GB2442967B (en) * | 2006-10-21 | 2011-02-16 | Rolls Royce Plc | An engine arrangement |
| GB2442967A (en) * | 2006-10-21 | 2008-04-23 | Rolls Royce Plc | Anti-icing / de-icing system in an engine utilizing jets of hot air |
| US8011172B2 (en) | 2006-10-21 | 2011-09-06 | Rolls-Royce Plc | Engine arrangement |
| JP2009041567A (en) * | 2007-08-07 | 2009-02-26 | General Electric Co <Ge> | Method and apparatus for supplying pressure for spray inlet temperature suppressor of gas turbine |
| US8601821B2 (en) | 2007-08-07 | 2013-12-10 | General Electric Company | Method and apparatus for supplying pressure for spray inlet temperature suppressor of gas turbines |
| JP2009197797A (en) * | 2008-02-19 | 2009-09-03 | General Electric Co <Ge> | System and method for exhaust gas recirculation (egr) in turbine engine |
| DE102009003481B4 (en) * | 2008-02-19 | 2019-03-28 | General Electric Co. | Exhaust gas recirculation (EGR) system and process for turbines |
| EP2781698A1 (en) * | 2013-03-20 | 2014-09-24 | Siemens Aktiengesellschaft | Gas turbine and method for operating the gas turbine |
| WO2014146854A1 (en) * | 2013-03-20 | 2014-09-25 | Siemens Aktiengesellschaft | Gas turbine and method for operating the gas turbine |
| US9915166B2 (en) | 2013-03-20 | 2018-03-13 | Siemens Aktiengesellschaft | Gas turbine and method for operating the gas turbine |
| CN103758588B (en) * | 2014-02-19 | 2015-09-09 | 襄阳三鹏航空科技有限公司 | A kind of shell mechanism of aircraft turbosupercharger and manufacturing process thereof |
| JP2016102415A (en) * | 2014-11-27 | 2016-06-02 | 東京電力株式会社 | Turbine plant and intake air cooling method for turbine plant |
| CN108454786A (en) * | 2017-01-16 | 2018-08-28 | 诺沃皮尼奥内技术股份有限公司 | The method of pontoon and operation pontoon |
| JP2018158713A (en) * | 2017-01-16 | 2018-10-11 | ヌオーヴォ・ピニォーネ・テクノロジー・ソチエタ・レスポンサビリタ・リミタータＮｕｏｖｏ Ｐｉｇｎｏｎｅ Ｔｅｃｎｏｌｏｇｉｅ Ｓ．Ｒ．Ｌ． | Floating vessel and method for navigating floating vessel |
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