JPS59160033A - Gas turbine - Google Patents

Gas turbine

Info

Publication number
JPS59160033A
JPS59160033A JP3270683A JP3270683A JPS59160033A JP S59160033 A JPS59160033 A JP S59160033A JP 3270683 A JP3270683 A JP 3270683A JP 3270683 A JP3270683 A JP 3270683A JP S59160033 A JPS59160033 A JP S59160033A
Authority
JP
Japan
Prior art keywords
cooling
cooling air
air
temperature
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.)
Granted
Application number
JP3270683A
Other languages
Japanese (ja)
Other versions
JPS6334291B2 (en
Inventor
Kiyomi Tejima
手島 清美
Yukimasa Kajitani
梶谷 幸正
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.)
National Institute of Advanced Industrial Science and Technology AIST
Original Assignee
Agency of Industrial Science and Technology
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 Agency of Industrial Science and Technology filed Critical Agency of Industrial Science and Technology
Priority to JP3270683A priority Critical patent/JPS59160033A/en
Publication of JPS59160033A publication Critical patent/JPS59160033A/en
Publication of JPS6334291B2 publication Critical patent/JPS6334291B2/ja
Granted legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02CGAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00Features, 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
    • F02C7/12Cooling of plants
    • F02C7/14Cooling of plants of fluids in the plant, e.g. lubricant or fuel
    • F02C7/141Cooling of plants of fluids in the plant, e.g. lubricant or fuel of working fluid

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

PURPOSE:To enhance the cooling effect of turbine blades, by injecting water into air only when the detected temperature of air compressed by a compressor and used for cooling the turbine blades is higher than a prescribed value. CONSTITUTION:A gas turbine 1 is composed of a compressor 2, a combustor 3, a turbine 4, etc., and a temperature detector 6 and a water injection means 5 are provided in a cooling-air chamber 12 defined in a combustor chamber 11. The water injection means 5 is connected to a water supply source 9 disposed on the outside of the gas turbine 1 via a pipe 8, and valve 7 is disposed at an intermediate portion of the pipe 8. The valve 7 is controlled by a controller 10 such that it is opened only when the detected temperature of air is higher than a prescribed value. That is, if the temperature of air in the cooling-air chamber 12 is higher than the prescribed value, the valve 7 is opened to inject water from the water injection means 5 for cooling the cooling air. With such an arrangement, it is enabled to cool the turbine blades efficiently by the cooling air.

Description

【発明の詳細な説明】 本発明はガスタービンの圧縮機で圧縮した空気の一部を
、噴霧装置からの噴霧水により効果的に冷却の上、冷却
空気として使用しているガスタービンに関するものであ
る。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a gas turbine in which a part of the air compressed by the gas turbine compressor is effectively cooled by spray water from a spray device and then used as cooling air. be.

近年、ガスタービンは、その性能向上および出力上昇の
ため、使用ガス温度がますます高温化の傾向にある。
In recent years, in order to improve the performance and output of gas turbines, the gas temperature used in gas turbines has tended to become higher and higher.

しかしながら、ガスタービンのタービン翼は、その強度
を保持するために一定の温度以下に保つ必要があり、こ
の手段としてタービygを冷却する方法が採用されてい
る。
However, in order to maintain the strength of the turbine blades of a gas turbine, it is necessary to maintain the temperature below a certain level, and a method of cooling the turbine YG is adopted as a means for this purpose.

そこで、タービン翼の冷却は、圧縮機で圧縮した空気の
一部を冷却空気として翼内に導き、フィルム冷却、イン
ピンジ冷却及び対流冷却等を行なっているが、ここで冷
却空気の使用量は、翼を一定の温度以下に保つため、使
用ガス温度の高温化にともなって増加する必要がある。
Therefore, to cool the turbine blades, a part of the air compressed by the compressor is guided into the blades as cooling air, and film cooling, impingement cooling, convection cooling, etc. are performed, but the amount of cooling air used here is In order to keep the blade below a certain temperature, it needs to increase as the gas temperature increases.

しかしながら、冷却空気使用量の増加は、冷却空気圧縮
のだめの所要動力の増加および主流ガスに混合する冷却
空気量の増加に伴う平均ガス温度の低下によるガスター
ビンサイクル効率の低下につながるという問題がある。
However, an increase in the amount of cooling air used leads to a decrease in gas turbine cycle efficiency due to an increase in the power required for the cooling air compression tank and a decrease in the average gas temperature due to the increase in the amount of cooling air mixed with the mainstream gas. .

また、冷却空気は、そのタービンにより駆動される圧縮
機で圧縮した空気を用いるため、燃焼ガスに比しては温
度が低いものの、ガスタービンの高出力化にともなって
、圧縮機での圧縮比が高くなり、その温度も高くなって
いる。
In addition, since cooling air uses air compressed by a compressor driven by the turbine, its temperature is lower than that of combustion gas, but as the output of gas turbines increases, the compression ratio of the compressor increases. is rising, and its temperature is also rising.

従って、タービン翼を冷却する際に、冷却空気と主流ガ
スとの温度差は、その分小さくなり、冷却効果は悪くな
る。
Therefore, when cooling the turbine blades, the temperature difference between the cooling air and the mainstream gas becomes correspondingly smaller, and the cooling effect becomes worse.

また、冷却空気は、さらにタービン翼に導く途中におい
て、周囲の高温のふん囲気にさらされるため、温度が上
昇するが、この傾向は燃焼ガス温度が高くなる程大きい
In addition, the cooling air is exposed to the surrounding high-temperature atmosphere on the way to the turbine blades, so its temperature increases, and this tendency increases as the combustion gas temperature increases.

従って、圧縮機で圧縮された空気をそのまま冷却空気と
して用いる場合、タービン翼の温度を、その強度を保持
するに必要な一定の温度以下に保つ条件の下では、冷却
空気量を増加しても主流ガス温度をある値以上に上げる
ことは不可能である。
Therefore, when using air compressed by a compressor as cooling air, as long as the temperature of the turbine blades is kept below a certain level necessary to maintain its strength, even if the amount of cooling air is increased. It is impossible to raise the mainstream gas temperature above a certain value.

この対策として、冷却空気をいったんガスタービン外に
導き、エアフィンクーラ等を用いて冷却したものもある
が、この場合、冷却空気温度は低下するものの、構造が
複雑となり、また圧損が増大し、冷却空気の圧力とター
ビン入口のガス圧力との差が小さくなり、このだめ初段
静翼のフィルム冷却が不可能であるという問題がある。
As a countermeasure to this problem, there is a method in which the cooling air is once guided outside the gas turbine and cooled using an air fin cooler, etc., but in this case, although the cooling air temperature decreases, the structure becomes complicated and the pressure drop increases. There is a problem in that the difference between the pressure of the cooling air and the gas pressure at the turbine inlet becomes small, making it impossible to film-cool the first-stage stationary blades.

そこで本発明は、前記従来の問題点を解消し、ガスター
ビンのタービン翼を冷却空気で効果的に冷却すると共に
、そのガスタービン効率向上を可能ならしめることを目
的としてなされたものである− 即ち、本発明は、ガスタービンの圧縮機で圧縮した空気
の一部を冷却空気としてそのタービン翼に導き、タービ
ン翼を冷却するガスタービンにおいて、その冷却空気の
通路に温度を検出する検出器及び水を噴霧可能な噴霧装
置を設けると共に、該検出器による検出温度が設定温度
以上の時にのみ水を噴霧させることにより構成される。
SUMMARY OF THE INVENTION The present invention has been made with the object of solving the above-mentioned conventional problems, effectively cooling the turbine blades of a gas turbine with cooling air, and making it possible to improve the efficiency of the gas turbine. The present invention provides a gas turbine in which a part of the air compressed by a gas turbine compressor is guided as cooling air to the turbine blades to cool the turbine blades, and a detector for detecting the temperature in the cooling air passage and a water It is constructed by providing a spraying device capable of spraying water and spraying water only when the temperature detected by the detector is equal to or higher than a set temperature.

以下、図面を参照して本発明のガスタービンの実施例を
説明するが、第1図は本発明の実施例におけるガスター
ビンの概念図であり、図中の圧縮機2、燃焼器6、ター
ビン4等によりこツカスタービン1は構成されている。
Embodiments of the gas turbine according to the present invention will be described below with reference to the drawings. FIG. 1 is a conceptual diagram of the gas turbine according to the embodiment of the present invention. The turbine 1 is composed of 4 and the like.

次に、第2図は第1図のガスタービン1の要部拡大の側
断面図であり、このガスタービン1内の冷却空気は図中
の矢印Aのごとく流れる。
Next, FIG. 2 is an enlarged side sectional view of the main part of the gas turbine 1 shown in FIG. 1, and cooling air within the gas turbine 1 flows as indicated by arrow A in the figure.

また、燃焼器室11は燃焼器中間支持板16によって仕
切られており、それにより冷却空気室12が構成されて
いる。
Further, the combustor chamber 11 is partitioned by a combustor intermediate support plate 16, thereby forming a cooling air chamber 12.

なお、上記燃焼器中間支持板13は、第3図の要部正面
図に示すごとく、それぞれ両側が隣りの燃焼器中間支持
板16と接するようにして、燃焼器室11を仕切ってい
るが、その外周部等の一部には開口部14が設けられて
おり、冷却空気Aが通るようになっている。
The combustor intermediate support plate 13 partitions the combustor chamber 11 so that both sides thereof are in contact with the adjacent combustor intermediate support plate 16, as shown in the front view of the main part in FIG. An opening 14 is provided in a part of the outer periphery, etc., through which the cooling air A passes.

また、冷却空気室12には、温度を検出する検出器6と
、水を噴霧可能な噴霧装置5とを設けており、噴霧装置
5は、ガスタービン1外部の水供給源9に配管8で接続
されており、この途中には弁7が設けられており、この
弁7は検出器6で検出した温度が設定温度以上の時にの
み開となるように調整器1oにより制御される。
The cooling air chamber 12 is also provided with a detector 6 for detecting temperature and a spray device 5 capable of spraying water. A valve 7 is provided in the middle of the connection, and the valve 7 is controlled by the regulator 1o so as to open only when the temperature detected by the detector 6 is equal to or higher than the set temperature.

ここで、設定温度とは噴霧された水が速やかに蒸発する
温度とする。
Here, the set temperature is a temperature at which sprayed water quickly evaporates.

また、連結部材19とトルクチューブ20.21  ′
との間に、圧縮機高圧側シールリング22とタービン入
口側シールリング26とでシールされた空間24及び連
結部材19とトルクチューブ21とに設けた冷却空気抽
気孔25 、26によってタービン動翼16.18への
冷却空気通路を構成している。
In addition, the connecting member 19 and the torque tube 20.21'
A space 24 sealed by the compressor high-pressure side seal ring 22 and the turbine inlet side seal ring 26 and cooling air bleed holes 25 and 26 provided in the connecting member 19 and the torque tube 21 are provided between the turbine rotor blades 16 and the .18.

上記の圧縮機2で圧縮された空気は、燃焼器室11に入
り、その大部分は燃焼器乙に供給されるが、一部は第3
図に示す燃焼器中間支持板13の開口部14を通り、冷
却空気室12に入る。
The air compressed by the compressor 2 enters the combustor chamber 11, and most of it is supplied to the combustor B, but some of it is supplied to the combustor B.
It enters the cooling air chamber 12 through the opening 14 of the combustor intermediate support plate 13 shown in the figure.

そして、冷却空気室12内の空気温度が検出器6により
検出され、それが設定温度以上であれば、調整器10の
信号により弁7が開となり、水供給源9から配管8を通
って噴霧装置5に水が供給されて冷却空気が冷却される
Then, the air temperature in the cooling air chamber 12 is detected by the detector 6, and if it is above the set temperature, the valve 7 is opened by a signal from the regulator 10, and the water is sprayed from the water supply source 9 through the pipe 8. Water is supplied to the device 5 to cool the cooling air.

冷却空気室12で冷却された冷却空気Aの一部は、ター
ビン翼環27の冷却空気孔28 、28を通ってタービ
ン静翼15,17に供給され、また残りは冷却空気抽気
孔25、空間24、冷却空気抽気孔26を通り、トルク
チューブ20.21 内の中空部に入り、更に通気孔2
9からタービンディスク30 、3()間に入り、冷却
空気孔3’l 、 31よりタービン動翼16.18に
供給される。
A part of the cooling air A cooled in the cooling air chamber 12 is supplied to the turbine stationary blades 15 and 17 through the cooling air holes 28 and 28 of the turbine blade ring 27, and the rest is supplied to the cooling air bleed hole 25 and the space. 24, passes through the cooling air bleed hole 26, enters the hollow part in the torque tube 20.21, and then enters the vent hole 2.
The air enters between the turbine disks 30 and 3 () from the cooling air holes 3'l and 31, and is supplied to the turbine rotor blades 16 and 18 through the cooling air holes 3'l and 31.

本発明のガスタービンは、以上のように構成されており
、圧縮機で圧縮され、温度が高くなり、また周囲の高温
の雰囲気にさらされて、さらに温度の高くなった空気中
に水を噴霧することにより、その空気を冷却することが
できる8しかも、温度の高くなった空気中に水を直接噴
霧するので、その空気は水が蒸発するだめの蒸発潜熱と
して約600 kcal/kyもの熱をうばわれるため
、エアフィンクーラ等を用いて間接的に冷却する従来の
場合に比して、十分に効果的な冷却ができるという利点
がある。
The gas turbine of the present invention is configured as described above, and is compressed by a compressor to increase the temperature, and is exposed to the surrounding high temperature atmosphere to spray water into the air that has become even hotter. By doing this, the air can be cooled.8 Moreover, since water is directly sprayed into the hot air, the air releases about 600 kcal/ky of heat as the latent heat of vaporization of the water. Compared to the conventional case of indirect cooling using an air fin cooler or the like, there is an advantage that sufficiently effective cooling can be achieved.

また、本発明によれば、ガスタービン内の冷却空気通路
中に水噴霧装置を設け、水噴霧を行なうだけであるため
、いったんガスタービンの外1部に冷却空気を導いて冷
却する場合のように卸損の増加なしに冷却を行な°うこ
とかできるという利点もある。
Furthermore, according to the present invention, a water spray device is provided in the cooling air passage inside the gas turbine and only the water spray is performed. Another advantage is that cooling can be carried out without increasing wholesale losses.

ここで、ガスタービンの起動あるいハ、停止7蒔等冷却
空気室内の空気が水噴霧装置より噴霧された水の全量を
速やかに蒸発させるに十分な温度でない時に水を噴霧す
れば、この水は速やかには蒸発せず、冷却空気室内のタ
ービン構成部材に水滴が直接当たり、その部材部分が急
冷され、クラック発生の原因ともなるので、冷却空気室
の空気が噴霧された水の全量を速やかに蒸発させるに十
分な温度にない時は、水を噴霧しないようにしなければ
ならない。
Here, if water is sprayed when the air in the cooling air chamber is not at a sufficient temperature to quickly evaporate the entire amount of water sprayed by the water spray device, such as when the gas turbine is started, stopped, etc. The water does not evaporate quickly, and the water droplets directly hit the turbine components in the cooling air chamber, rapidly cooling those parts and causing cracks. Water should not be sprayed unless the temperature is sufficient to evaporate it.

このため、特に本発明は、検出器により冷却空気室内の
空気の温度を検出し、これが噴霧された水の全量を速や
かに蒸発させ得る温度以上である時のみ、水噴霧装置に
水を供給する配管系の元弁を開とするようになっている
For this reason, in particular, the present invention detects the temperature of the air in the cooling air chamber with a detector, and supplies water to the water spray device only when the temperature of the air in the cooling air chamber is equal to or higher than the temperature at which the entire amount of water sprayed can be quickly evaporated. The main valve of the piping system is opened.

ここで検出器は1個でも良いが、これを全周に、複数個
設ければ平均温度を用いる等温度検出の精度が向上し、
またある検出器に不具合が生じてもバックアップ出来る
等温度検出の信頼性も向上する。
Here, only one detector is sufficient, but if multiple detectors are provided all around the circumference, the accuracy of isotemperature detection using the average temperature will be improved.
It also improves the reliability of isotemperature detection, which can be used as a backup even if a certain detector malfunctions.

このため、噴霧された水は速やかに蒸発し、蒸発しきれ
ない水滴が高温のタービン構成部材に当たり、これを急
冷し、クラック発生の原因となる等の悪影響を及ぼすこ
となく冷却を行なうことができる。
For this reason, the sprayed water evaporates quickly, and the water droplets that do not fully evaporate hit the high-temperature turbine components, rapidly cooling them without causing any adverse effects such as causing cracks. .

ここで、冷却空気室内の空気が、水の全量を1蓮やかに
蒸発させるに十分な温度でない時は、冷却空気を冷却し
なくてもタービン翼等との温度差が大きく、十分な冷却
効果をもっていることにな、す、またガスタービンの起
動、停止間近かでは燃焼ガス温度自体が低いため、特に
冷却を必要としない。
If the air in the cooling air chamber is not at a temperature sufficient to evaporate the entire amount of water, the temperature difference between the cooling air and the turbine blades will be large even if the cooling air is not cooled, and sufficient cooling will not be possible. This is effective, and since the temperature of the combustion gas itself is low when the gas turbine is about to start or stop, no particular cooling is required.

一方、冷却空気を冷却し、その温度を下げることができ
れば、冷却空気量の増加なしにガスタービンの使用ガス
温度を上げることができるーここで従来の方法は、冷却
空気量を増すことによっても、タービン翼を冷却する能
力が増℃、使用ガス温度を上げることができるが、使用
ガス温度が上がるに伴いタービン翼の受ける熱量が増す
一方、冷却空気自体の温度もかなり高くなり、タービン
翼との温度差が小さくなることから、冷却空気量を増や
しても冷却効果を大巾に良くすることはできないのに対
して、本発明のガスタービンのごとく冷却空気の温度を
下げれば、タービン翼との温度差が大きくなり、冷却効
果が大巾に改善される。
On the other hand, if the cooling air can be cooled and its temperature lowered, the gas temperature used by the gas turbine can be raised without increasing the amount of cooling air. However, as the gas temperature increases, the amount of heat received by the turbine blades increases, and the temperature of the cooling air itself also increases considerably, causing the turbine blades to Even if the amount of cooling air is increased, the cooling effect cannot be significantly improved because the temperature difference between the turbine blades and The temperature difference becomes larger, and the cooling effect is greatly improved.

しかも、冷却効果が向上すれば、冷却空気量を増加する
必要もなくなる。
Moreover, if the cooling effect is improved, there is no need to increase the amount of cooling air.

従って、本発明によれば、冷却空気量を増加することな
く、使用ガス温度を上げることかで伽、ガスタービンサ
イクル効率が向上する。
Therefore, according to the present invention, the gas turbine cycle efficiency is improved by increasing the temperature of the gas used without increasing the amount of cooling air.

更に、本発明によれば、冷却空気中に水噴霧を行なうた
め、その分冷却空気の容積が増加するので、圧縮機で圧
縮した冷却空気の使用量が減り、ガスタービンのサイク
ル効率が向上する。
Furthermore, according to the present invention, since water is sprayed into the cooling air, the volume of the cooling air increases accordingly, which reduces the amount of cooling air compressed by the compressor and improves the cycle efficiency of the gas turbine. .

また、本発明によれば、冷却空気中に水分が加わるため
、冷却空気の比熱が増し、この面からも冷却空気のみの
冷却よりも冷却効果が高くなり、この分冷却空気の使用
量を減じるか、使用ガス温度を上げることができ、ガス
タービンのサイクル効率が向上する。
Further, according to the present invention, since moisture is added to the cooling air, the specific heat of the cooling air increases, and from this aspect as well, the cooling effect is higher than cooling with only cooling air, and the amount of cooling air used is reduced accordingly. Alternatively, the gas temperature used can be increased, improving the cycle efficiency of the gas turbine.

加えて、本発明によれば、ガスタービン内部の冷却空気
通路中で水を噴霧するため、いったんガスタービン外へ
導き、エアフィンクーラ等で冷却する場合のように圧損
の増加がなく、この方式では不可能であったタービン等
1段静翼のフィルム冷却も問題なく行なうことができる
という利点もある。
In addition, according to the present invention, since water is sprayed in the cooling air passage inside the gas turbine, there is no increase in pressure loss, unlike when the water is once guided outside the gas turbine and cooled with an air fin cooler or the like. Another advantage is that film cooling of first-stage stationary blades such as turbines, which was impossible with conventional methods, can be performed without any problem.

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

第1図は本発明の一実施例におけるガスタービンの概念
図であり、第2図は第1図のガスタービンの要部拡大の
側断面図で、第3図は第21′ 図の燃焼器中間支持板の要部正面図である。 1・・・ガスタービン、2・・・圧縮機、3・・・燃焼
器、4・・・タービン、5・・・噴霧装置、12・・・
冷却空気室、13・・・燃焼器中間支持板、15.17
・・・タービン静翼、16,18川タービン動翼、A・
・・冷却空気。
FIG. 1 is a conceptual diagram of a gas turbine in one embodiment of the present invention, FIG. 2 is an enlarged side sectional view of the main part of the gas turbine in FIG. 1, and FIG. 3 is a combustor shown in FIG. 21'. FIG. 3 is a front view of main parts of the intermediate support plate. DESCRIPTION OF SYMBOLS 1... Gas turbine, 2... Compressor, 3... Combustor, 4... Turbine, 5... Spray device, 12...
Cooling air chamber, 13... Combustor intermediate support plate, 15.17
...Turbine stationary blades, 16th and 18th turbine moving blades, A.
...Cooling air.

Claims (1)

【特許請求の範囲】[Claims] ガスタービンの圧縮機で圧縮した空気の一部を冷却空気
としてそのタービン翼に導き、タービン翼を冷却するガ
スタービンにおいて、その冷却空気の通路に温度を検出
する検出器及び水を噴霧可能な噴霧装置を設けると共に
、該検出器による検出温度が設定温度以上の時にのみ水
を噴霧させることを特徴とするガスタービン。
In a gas turbine that cools the turbine blades by guiding part of the air compressed by the gas turbine compressor as cooling air to the turbine blades, a detector that detects the temperature and a spray that can spray water in the cooling air passage. What is claimed is: 1. A gas turbine comprising a device and spraying water only when the temperature detected by the detector is equal to or higher than a set temperature.
JP3270683A 1983-03-01 1983-03-01 Gas turbine Granted JPS59160033A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3270683A JPS59160033A (en) 1983-03-01 1983-03-01 Gas turbine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3270683A JPS59160033A (en) 1983-03-01 1983-03-01 Gas turbine

Publications (2)

Publication Number Publication Date
JPS59160033A true JPS59160033A (en) 1984-09-10
JPS6334291B2 JPS6334291B2 (en) 1988-07-08

Family

ID=12366283

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3270683A Granted JPS59160033A (en) 1983-03-01 1983-03-01 Gas turbine

Country Status (1)

Country Link
JP (1) JPS59160033A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02230925A (en) * 1989-01-27 1990-09-13 Westinghouse Electric Corp <We> Gas turbine and method for cooling turbine portion thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02230925A (en) * 1989-01-27 1990-09-13 Westinghouse Electric Corp <We> Gas turbine and method for cooling turbine portion thereof

Also Published As

Publication number Publication date
JPS6334291B2 (en) 1988-07-08

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