JPS5939936A - Suction device for gas turbine - Google Patents
Suction device for gas turbineInfo
- Publication number
- JPS5939936A JPS5939936A JP14928082A JP14928082A JPS5939936A JP S5939936 A JPS5939936 A JP S5939936A JP 14928082 A JP14928082 A JP 14928082A JP 14928082 A JP14928082 A JP 14928082A JP S5939936 A JPS5939936 A JP S5939936A
- Authority
- JP
- Japan
- Prior art keywords
- gas turbine
- humidity
- humidification
- nitrogen oxides
- suction air
- 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
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
- F02C3/30—Adding water, steam or other fluids for influencing combustion, e.g. to obtain cleaner exhaust gases
Abstract
Description
【発明の詳細な説明】
本発明は排出窒素酸化物帳度を低減させるために、吸気
系統空気に、加湿を行なうガスタービン吸気系統に係り
、特に、加湿量を大気温度及び大気湿度に関連させて最
大湿度となるように制御し排出窒素酸化物の濃度を低減
するガスタービン吸気系統に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a gas turbine intake system that humidifies air in the intake system in order to reduce emissions of nitrogen oxides, and particularly relates the amount of humidification to atmospheric temperature and atmospheric humidity. The present invention relates to a gas turbine intake system that controls the humidity to a maximum and reduces the concentration of exhaust nitrogen oxides.
第１図に水噴射を行なうガスタービンの従来一般に行な
われている系統図を示す。FIG. 1 shows a conventional system diagram of a gas turbine that performs water injection.
大気より吸い込まれた吸入空気１は、圧縮機２により圧
縮され燃焼器３に送り込まれる。この燃焼器３で燃料４
が燃焼し、高温・高圧の燃焼ガス５を発生し、このエネ
ルギーがタービン６で回収され、一部は圧縮機２を駆動
する動力として使用され、残りが負荷動力となる。ター
ビン６を駆動した燃焼ガス５は排気ガス７となり、大気
へ放出される。このようなガスタービンで出力および熱
効率を上昇させるには、燃焼ガス５の温度を上昇させる
のが、最も一般的な手段である。Intake air 1 drawn from the atmosphere is compressed by a compressor 2 and sent to a combustor 3. This combustor 3 fuel 4
is combusted and generates high-temperature, high-pressure combustion gas 5. This energy is recovered by a turbine 6, a portion of which is used as power to drive the compressor 2, and the remainder becomes load power. The combustion gas 5 that has driven the turbine 6 becomes exhaust gas 7 and is released into the atmosphere. In order to increase the output and thermal efficiency of such a gas turbine, the most common means is to increase the temperature of the combustion gas 5.
しかし、燃焼ガス５の温度を上昇させることは、同時に
、燃焼過程において多量の窒素酸化物を発生させること
になる。これらの窒素酸化物は排気ガス７と共に大気中
へ放出され、環境衛生上好ましくない。近年、環境規制
が年々強化されてきており、カスタービンを新たに設置
するためには、排出窒素酸化物の濃度を低減させる必要
がある。However, increasing the temperature of the combustion gas 5 simultaneously generates a large amount of nitrogen oxides during the combustion process. These nitrogen oxides are released into the atmosphere together with the exhaust gas 7, which is unfavorable in terms of environmental hygiene. In recent years, environmental regulations have been tightened year by year, and in order to install a new cast turbine, it is necessary to reduce the concentration of exhaust nitrogen oxides.
この対策の一例として、燃焼器に水を噴射させる方法が
ある。この方法は燃焼器中に水を噴射させ、燃焼過程の
温度を低下させ、窒素酸化物の生成を減少させる。すな
わち、水タンク８に貯蔵された水を水ポンプ９により加
圧し、流量計１１を介して、制御弁１４により流量を調
整し、燃焼器３を噴射する。なお、途中には必要に応じ
てフィルタ１２および遮断弁１３等を設置する。One example of this measure is a method of injecting water into the combustor. This method injects water into the combustor, lowering the temperature of the combustion process and reducing the production of nitrogen oxides. That is, the water stored in the water tank 8 is pressurized by the water pump 9, the flow rate is adjusted by the control valve 14 via the flow meter 11, and the combustor 3 is injected. Note that a filter 12, a shutoff valve 13, etc. are installed along the way as necessary.
しかし、本方法では、水ポンプ９で２０ｋｇ／ｃｍ”程
度まで水圧を上げる必要があり、′！！−た、水噴射を
行なうため、水噴射系統にトラブルを発生したｊ、１合
にカスタービンに与える影響が大きい欠点があった。However, in this method, it is necessary to raise the water pressure to about 20 kg/cm'' with the water pump 9, and in order to perform water injection, there is a problem with the water injection system. There were drawbacks that had a large impact on
本発明の目的は、ガスタービン吸気系統に加湿装置、を
設置することにより、排出窒素酸化物濃度を低減するガ
スタービン吸気系統を提供するにあるＯ
ガスタービンの燃焼温度の上昇と甲境規制の強化に伴い
、排出窒素酸化物濃度を低減することが重要な問題とな
ってきている。An object of the present invention is to provide a gas turbine intake system that reduces exhaust nitrogen oxide concentration by installing a humidifier in the gas turbine intake system. Along with strengthening, reducing the concentration of emitted nitrogen oxides has become an important issue.
ガスタービンの排出窒素酸化物濃度（ＮＯＸ）はＥＰＡ
によると下肥（１）式により示される。Gas turbine exhaust nitrogen oxide concentration (NOX) is determined by EPA.
According to the equation (1),
Ｎ０Ｘ＝ＮＯＸＳ−ｆ （１つ 、ｅＩ９Ｈｘ ｆ
（Ｔ） −”（］）こ＼に、
Ｎ０Ｘ８ ： Ｉ８０状態における排出窒素酸化物濃度
ｆ（Ｐ）：燃焼器入口圧力による補正係数１■：絶対湿
度
ｆ （Ｔ） ：大気温度による補正係数（１）式により
、排出窒素酸化物濃度は絶対湿度により大きな影響ヲ受
けることがわかる。ここで（１）式により判明する絶対
湿度と排出窒素酸化物との関係を第２］シ１に示す。ま
た、相対湿度と排出窒素酸化物験度との関係を第３図に
示す。第３図により、各大気温１１！（特に、大気温度
が高い場合）において、相対湿度により排出窒素酸化物
濃度が大きく変わることがわかる。NOX=NOXS-f (1, eI9Hx f
(T) -”(]) Here, N0X8: Exhaust nitrogen oxide concentration in I80 state f(P): Correction coefficient based on combustor inlet pressure 1 ■: Absolute humidity f (T): Correction coefficient based on atmospheric temperature ( Equation 1) shows that the concentration of discharged nitrogen oxides is greatly influenced by absolute humidity.The relationship between the absolute humidity and the discharged nitrogen oxides determined by formula (1) is shown in Section 2.1. Figure 3 shows the relationship between relative humidity and the experimental degree of nitrogen oxide emissions. Figure 3 shows that at each atmospheric temperature 11! (especially when the atmospheric temperature is high), the concentration of nitrogen oxide emissions depends on the relative humidity. It can be seen that there is a big change.
本発明は、吸気系統に大気温度と相対ｒ’１ｉ！度を測
定する装置、入口空気の相対湿度を最大とする加湿ぢ°
の演算装置、加湿装置及び演算された加湿水量を吸気系
統に注入する制御弁を設置し、圧縮機入口空気の相対湿
度を最大にすることにより、排出窒素酸化物４度の低減
をはかるものである。The present invention provides an air intake system with relative r'1i! Humidification equipment that maximizes the relative humidity of the inlet air
By installing a computing device, a humidifying device, and a control valve that injects the computed amount of humidifying water into the intake system, and maximizing the relative humidity of the compressor inlet air, the system aims to reduce nitrogen oxide emissions by 4 degrees. be.
第４図は本発明の一実施例を示す。FIG. 4 shows an embodiment of the present invention.
水タンク８に貯蔵された水を、水ポンプ９、流叶計１１
、加湿装置２１を介し、制御弁１４により流−計を調整
し、ガスタービン吸気系統を加湿する。この加湿量を制
御するために、入口温度測定装置１８、入口空気相対湿
度測定装置２０をガスタービンに設置し、これらにより
、入口空気１の温度及び相対湿度を測定し、これらの測
定値の電気信号を演算器１９に入れ、大気温度、相対湿
度に見あった最適（最大湿度）の加湿量を決定する。The water stored in the water tank 8 is transferred to the water pump 9 and the flowmeter 11.
, the flow meter is adjusted by the control valve 14 via the humidifier 21, and the gas turbine intake system is humidified. In order to control the amount of humidification, an inlet temperature measuring device 18 and an inlet air relative humidity measuring device 20 are installed in the gas turbine, and these measure the temperature and relative humidity of the inlet air 1, and electrically calculate these measured values. The signal is input to the calculator 19, and the optimal (maximum humidity) humidification amount is determined depending on the atmospheric temperature and relative humidity.
尚、必要に応じ加湿系統の途中にフィルタ１２および遮
断弁１３を設置する。なお、図中１０は水ポンプ用モー
タ、１６は熱電対、１７は圧力変換器である。Incidentally, a filter 12 and a cutoff valve 13 are installed in the middle of the humidification system if necessary. In the figure, 10 is a water pump motor, 16 is a thermocouple, and 17 is a pressure transducer.
又、相対湿度の代りに絶対湿度による制御、あるいは、
制御弁の位置を加湿装置の上流側にしても同様の効果が
ある。Also, control using absolute humidity instead of relative humidity, or
A similar effect can be obtained even if the control valve is located on the upstream side of the humidifier.
本発明によれば、ガスタービン排出窒素酸化物の低減に
効果があり、また、対象が入口空気系統であるため、系
統のトラブルがガスタービン本体に与える影響は小さい
。According to the present invention, it is effective in reducing gas turbine exhaust nitrogen oxides, and since the target is the inlet air system, troubles in the system have little effect on the gas turbine main body.
第１図は水噴射を行なうガスタービンの従来の制御系統
図、第２図は排出窒素酸化物の濃度に対する大気絶対湿
度の影響を表わす説明図、第３図は排出窒素酸化物濃度
に対する大気相対湿度の影響を表わす説明図、第４図は
本発明の−・実施例であるガスタービンにおける入口空
気加湿ｍｌ：の制御系統図である。
１・・・入口空気、２・・・圧縮機、３・・・燃焼器、
９・・・水ポンプ、１０・・・水ポンプ用モータ、１８
・・・人口空気温度測定装置、１９・・・演算器、２０
・・・入口空気絶対力り度 （に’ｋｇ）
弔３図
本日 ７寸甚刀ｔ ｃｙ−ノFigure 1 is a conventional control system diagram for a gas turbine that performs water injection, Figure 2 is an explanatory diagram showing the influence of atmospheric absolute humidity on the concentration of exhaust nitrogen oxides, and Figure 3 is an illustration of the atmospheric relative humidity on the concentration of exhaust nitrogen oxides. FIG. 4, which is an explanatory diagram showing the influence of humidity, is a control system diagram of inlet air humidification ml in a gas turbine according to an embodiment of the present invention. 1... Inlet air, 2... Compressor, 3... Combustor,
9... Water pump, 10... Water pump motor, 18
...Artificial air temperature measuring device, 19...Arithmetic unit, 20
...Absolute force of inlet air (Ni'kg) Funeral 3rd figure today 7 inch cy-no
Claims (1)
と、大気温度、大気湿度の検出装置と、これら各検出装
置の検地信号によって吸気系統空気が最大湿度を保持す
るような加湿量の制御装置とからなることを特徴とする
ガスタービンの吸気装置。、1. A humidifying device to reduce the concentration of nitrogen oxides discharged, a detecting device for atmospheric temperature and atmospheric humidity, and control of the amount of humidification so that the intake system air maintains the maximum humidity based on the detection signals of each of these detecting devices. An intake device for a gas turbine, characterized in that it consists of a device. ,
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14928082A JPS5939936A (en) | 1982-08-30 | 1982-08-30 | Suction device for gas turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14928082A JPS5939936A (en) | 1982-08-30 | 1982-08-30 | Suction device for gas turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5939936A true JPS5939936A (en) | 1984-03-05 |
Family
ID=15471751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14928082A Pending JPS5939936A (en) | 1982-08-30 | 1982-08-30 | Suction device for gas turbine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5939936A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5054279A (en) * | 1987-11-30 | 1991-10-08 | General Electric Company | Water spray ejector system for steam injected engine |
| JPH05171955A (en) * | 1991-12-25 | 1993-07-09 | Kawasaki Steel Corp | Method and device for reducing nitrogen oxide in combustion exhaust gas in gas turbine |
| JP2005002845A (en) * | 2003-06-10 | 2005-01-06 | National Institute Of Advanced Industrial & Technology | Reheating gas turbine device expanding to negative pressure |
| JP4285781B2 (en) * | 1997-04-22 | 2009-06-24 | 株式会社日立製作所 | Gas turbine power generation equipment |
| JP2012127247A (en) * | 2010-12-15 | 2012-07-05 | Toshiba Corp | Gas turbine generating equipment and method for operating the same |
| CN102817714A (en) * | 2012-09-03 | 2012-12-12 | 中国船舶重工集团公司第七○三研究所 | Combustion gas turbine circulating device with intermediate water spray cooling and steam reinjection |
-
1982
- 1982-08-30 JP JP14928082A patent/JPS5939936A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5054279A (en) * | 1987-11-30 | 1991-10-08 | General Electric Company | Water spray ejector system for steam injected engine |
| JPH05171955A (en) * | 1991-12-25 | 1993-07-09 | Kawasaki Steel Corp | Method and device for reducing nitrogen oxide in combustion exhaust gas in gas turbine |
| JP2634722B2 (en) * | 1991-12-25 | 1997-07-30 | 川崎製鉄株式会社 | Method for reducing nitrogen oxides in flue gas in gas turbine |
| JP4285781B2 (en) * | 1997-04-22 | 2009-06-24 | 株式会社日立製作所 | Gas turbine power generation equipment |
| JP2005002845A (en) * | 2003-06-10 | 2005-01-06 | National Institute Of Advanced Industrial & Technology | Reheating gas turbine device expanding to negative pressure |
| JP2012127247A (en) * | 2010-12-15 | 2012-07-05 | Toshiba Corp | Gas turbine generating equipment and method for operating the same |
| CN102817714A (en) * | 2012-09-03 | 2012-12-12 | 中国船舶重工集团公司第七○三研究所 | Combustion gas turbine circulating device with intermediate water spray cooling and steam reinjection |
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