JPH09242562A - Closed brayton cycle device, and operating method therefor - Google Patents
Closed brayton cycle device, and operating method thereforInfo
- Publication number
- JPH09242562A JPH09242562A JP8047198A JP4719896A JPH09242562A JP H09242562 A JPH09242562 A JP H09242562A JP 8047198 A JP8047198 A JP 8047198A JP 4719896 A JP4719896 A JP 4719896A JP H09242562 A JPH09242562 A JP H09242562A
- Authority
- JP
- Japan
- Prior art keywords
- compressor
- gas
- output
- opening
- air reserving
- 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
- 238000011017 operating method Methods 0.000 title 1
- 238000010992 reflux Methods 0.000 claims abstract description 5
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 4
- 230000007423 decrease Effects 0.000 abstract description 4
- 230000002542 deteriorative effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 230000010485 coping Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
Classifications
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
Landscapes
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は負荷変動に応じて出
力を制御可能としたガスタービン等のクローズドブレイ
トンサイクル装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a closed Brayton cycle device such as a gas turbine whose output can be controlled according to load fluctuations.
【０００２】[0002]
【従来の技術】図２は従来のクローズドブレイトンサイ
クルガスタービンの系統図である。系内の作動ガス９は
圧縮機７で圧縮され、加熱器８で熱Ｑ1 を加えられ加熱
されて高温高圧のガスとなる。2. Description of the Related Art FIG. 2 is a system diagram of a conventional closed Brayton cycle gas turbine. Working gas 9 in the system is compressed by the compressor 7 is heated applied heat Q 1 becomes the high-temperature and high-pressure gas in the heater 8.
【０００３】この高温高圧のガスは圧縮機７と同軸１６
上のガスタービン６に導かれ、ガスのエネルギを回収す
ることにより出力を生み、圧縮機７の駆動力分を差し引
いた分が正味の出力となる。This high temperature and high pressure gas is coaxial with the compressor 16
It is guided to the upper gas turbine 6 to generate an output by recovering the energy of the gas, and the net output is obtained by subtracting the driving force of the compressor 7.
【０００４】エネルギを回収されて低温低圧となった作
動ガス９は、冷却器１０で熱Ｑ2 をうばわれてさらに冷
却され、再び圧縮機７に導かれて、系内が密閉され外部
と遮断されたクローズドブレイトンサイクルガスタービ
ンを構成している。The working gas 9 whose energy has been recovered to have a low temperature and a low pressure is subjected to heat Q 2 in the cooler 10 to be further cooled, and then introduced into the compressor 7 again to seal the inside of the system and shut it off from the outside. It constitutes a closed Brayton cycle gas turbine.
【０００５】そしてこの従来のものでは、ガスタービン
６の負荷の低減時は回転数を低下させ、負荷増加時は回
転数を増加させて圧力比を変化させることにより重量流
量を変化させることにより負荷変動に対応していた。In this conventional type, when the load of the gas turbine 6 is reduced, the rotation speed is decreased, and when the load is increased, the rotation speed is increased to change the pressure ratio to change the weight flow rate. It was responding to fluctuations.
【０００６】[0006]
【発明が解決しようとする課題】前記した従来のもので
は、同一軸上のガスタービン６、圧縮機７の回転数を変
化させると体積流量が変化するが、系内が密閉されてい
るため圧縮機入口側の圧力は常に一定で圧力比が変化
し、重量流量すなわち出力が変化する。In the above-mentioned conventional one, the volume flow rate changes when the rotational speeds of the gas turbine 6 and the compressor 7 on the same shaft are changed, but the system is hermetically closed. The pressure at the machine inlet side is always constant and the pressure ratio changes, and the weight flow rate, that is, the output changes.
【０００７】一方、サイクルの性能を示すサイクル効率
と圧力比との関係は図３に示すようにほぼ圧力比２付近
で効率最大となる関係があり、従来の回転数の変化によ
る出力制御法では各負荷点でサイクル効率が大きく変化
すること、特に低負荷時にサイクル効率が低下すること
が懸念される。On the other hand, the relationship between the cycle efficiency, which indicates the cycle performance, and the pressure ratio is such that the efficiency becomes maximum near a pressure ratio of 2 as shown in FIG. 3, and in the conventional output control method by changing the rotational speed. There is a concern that the cycle efficiency will change significantly at each load point, and that the cycle efficiency will decrease especially when the load is low.
【０００８】本発明はこのような従来のものにおける不
具合を解消し、負荷変動に対してサイクル効率を低下す
ることなく追随対処しうるものを提供することを課題と
するものである。An object of the present invention is to solve the above-mentioned problems in the prior art and to provide a device capable of coping with load fluctuations without lowering cycle efficiency.
【０００９】[0009]
【課題を解決するための手段】本発明は、前記課題を解
決するべくなされたもので、圧縮機の吐出側と吸込側と
の間に、貯気用圧縮機と貯気タンクと開閉弁とを上流か
ら順次配列して構成した制御流路を設けたクローズドブ
レイトンサイクル装置を提供し、負荷の変動に応じて制
御流路を作動し、作動媒体を調整して同負荷変動に対応
させ、サイクル効率を何ら低下させることなくこの負荷
変動を対処するものである。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and a compressor for storing air, a storage tank, an on-off valve are provided between a discharge side and a suction side of a compressor. We provide a closed Brayton cycle device that has a control flow path that is configured by sequentially arranging from the upstream, operate the control flow path according to the change of the load, adjust the working medium to respond to the same load change, and cycle The load fluctuation is dealt with without any reduction in efficiency.
【００１０】また、本発明は出力を低下させる際には系
内ガスの一部を圧縮機の吐出側から分岐して保存し、出
力を増加させる際には保存していた系内ガスを圧縮機吸
込側から系内に還流して運転するようにしたクローズド
ブレイトンサイクル装置の運転方法を提供し、負荷変動
で出力を低下するとき、又は増加するとき夫々に応じ
て、作動媒体の系内ガスの一部を、系から分岐して保存
するか又は保存していたものを還流復帰させて増加させ
た上で運転し、これによりサイクル効率を何ら低下させ
ることなく前記負荷変動を対処するものである。Further, according to the present invention, when the output is reduced, a part of the system gas is branched from the discharge side of the compressor and stored, and when the output is increased, the stored system gas is compressed. Provided is a method for operating a closed Brayton cycle device that is operated by recirculating from the suction side of the machine to the system, and when the output decreases or increases due to load fluctuation, the working medium gas in the system Part of the load is branched from the system and stored, or the stored one is returned to reflux and increased to operate, thereby coping with the load fluctuation without any reduction in cycle efficiency. is there.
【００１１】[0011]
【発明の実施の形態】本発明の実施の一形態を図１に基
づいて説明する。図１は本実施の形態の系統図であり、
前記した従来のものと同一部分には同一の符号を付して
示し、同従来のものと異る点に焦点を合せて説明して重
複する説明は省略する。BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described with reference to FIG. FIG. 1 is a system diagram of the present embodiment,
The same parts as those of the above-mentioned conventional one are designated by the same reference numerals, and the description will be made focusing on the points different from the conventional one and the duplicated description will be omitted.
【００１２】本実施の形態では、通常の系統に加えて、
出力制御用に貯気タンク１１を設け、出力低減時に系内
ガスの一部を分離、貯気するために圧縮機７の吐出側７
ａから分岐して系内と貯気タンク１１を連結する貯気管
路１および貯気用圧縮機１５を設け、また、出力増加時
に貯気ガスを系内に還流するために貯気タンク１１と圧
縮機７吸込側を連結する還流管路３および開閉弁２を設
けた。In the present embodiment, in addition to the normal system,
The storage tank 11 is provided for output control, and the discharge side 7 of the compressor 7 is provided to separate and store a part of the system gas when the output is reduced.
A storage pipe 1 and a storage compressor 15 that branch from a to connect the inside of the system and the storage tank 11 are provided, and the storage tank 11 is provided to recirculate the stored gas into the system when the output increases. A reflux pipe 3 and an on-off valve 2 which connect the suction side of the compressor 7 are provided.
【００１３】即ち、圧縮機７の吐出側７ａと吸込側７ｂ
との間には、ガスタービン６からはじまり冷却器１０を
経て帰還するクローズドブレイトンサイクルの通常の系
に加えて、貯気管路１、及び還流管路３を夫々上流、下
流とし、上流側から下流側へ向かって貯気用圧縮機１
５、貯気タンク１１、開閉弁２と順次配列して、この全
体で形成した制御流路を介装している。That is, the discharge side 7a and the suction side 7b of the compressor 7
In addition to the normal system of the closed Brayton cycle, which starts from the gas turbine 6 and returns via the cooler 10, the storage pipe line 1 and the reflux pipe line 3 are upstream and downstream, respectively, and Compressor for storing air 1 toward the side
5, the air storage tank 11, and the on-off valve 2 are sequentially arranged, and a control flow path formed as a whole is interposed.
【００１４】なお前記吐出側７ａと吸込側７ｂとは、必
ずしも圧縮機７上に設けられていると限定されるもので
はなく、装置のロケイション等に応じ適宜管路を延ばし
て最適な位置を選びうることは勿論である。The discharge side 7a and the suction side 7b are not necessarily limited to being provided on the compressor 7, and the optimum positions can be selected by appropriately extending the conduits depending on the location of the device. Of course
【００１５】このように構成された本実施の形態では、
いま、出力を低減する場合は同一軸１６上にあるガスタ
ービン６、圧縮機７の回転数を一定とし、貯気用圧縮機
１５を作動させ、開閉弁２を閉じ貯気タンク１１に系内
の作動ガス９の一部を分離、貯気するように運転するこ
とにより、作動ガス９は体積流量を変えず、すなわち圧
力比一定のまま重量流量を変化でき、ガスタービン６の
出力は低下する。In the present embodiment configured as described above,
Now, when reducing the output, the gas turbine 6 and the compressor 7 on the same shaft 16 are kept at constant rotation speeds, the air storage compressor 15 is operated, the on-off valve 2 is closed, and the air storage tank 11 is connected to the system. By operating such that a part of the working gas 9 is separated and stored, the working gas 9 can change the volume flow rate, that is, the weight flow rate can be changed with the pressure ratio kept constant, and the output of the gas turbine 6 decreases. .
【００１６】一方、出力を増加する場合は、同様にガス
タービン６、圧縮機７の回転数を一定とし、貯気用圧縮
機１５を停止したまま貯気タンク１１に貯気していたガ
スを開閉弁２を開くことにより系内に戻して運転するこ
とにより、体積流量を変えず、すなわち圧力比一定のま
ま重量流量を変化できガスタービン６の出力は増加す
る。On the other hand, when the output is increased, similarly, the rotational speeds of the gas turbine 6 and the compressor 7 are made constant, and the gas stored in the storage tank 11 is kept with the storage compressor 15 stopped. By operating the valve by returning it to the system by opening the on-off valve 2, the volume flow rate is not changed, that is, the weight flow rate can be changed with the pressure ratio kept constant, and the output of the gas turbine 6 is increased.
【００１７】そしてこの作動を通してサイクル効率を何
ら低下することなくガスタービンの出力を低下又は増加
させて負荷の変動に追従した運転を行うことができるも
のである。Through this operation, the output of the gas turbine can be reduced or increased without any reduction in cycle efficiency, and operation can be performed in accordance with load fluctuations.
【００１８】以上、本発明を図示の実施の形態について
説明したが、本発明はかかる実施の形態に限定されず、
本発明の範囲内でその具体的構造に種々の変更を加えて
よいことはいうまでもない。Although the present invention has been described with reference to the illustrated embodiments, the present invention is not limited to such embodiments.
It goes without saying that various modifications may be made to the specific structure within the scope of the present invention.
【００１９】[0019]
【発明の効果】以上本発明によれば、負荷の変動に応じ
て制御流路を作動し、全体のサイクル効率を低下するこ
となく前記負荷変動に追従してそれに対応した運転を行
うことができたものである。As described above, according to the present invention, it is possible to operate the control flow passage in accordance with the load variation and follow the load variation without deteriorating the overall cycle efficiency to perform the corresponding operation. It is a thing.
【００２０】また、請求項２の発明では、負荷変動で出
力を低下し又は増加するときには制御流路内に作動媒体
の系内ガスの一部を保存し、又はこの保存していたもの
を還流して復帰させ、全体のサイクル効率を低下するこ
となく前記負荷変動に追従する運転方法を得ることがで
きたものである。Further, according to the second aspect of the invention, when the output is decreased or increased due to load fluctuation, a part of the system gas of the working medium is stored in the control flow path, or the stored gas is recirculated. Then, it is possible to obtain an operation method of following the load fluctuation without reducing the overall cycle efficiency.
【図１】本発明の実施の一形態を得るクローズドブレイ
トンサイクルの系統図。FIG. 1 is a system diagram of a closed Brayton cycle according to an embodiment of the present invention.
【図２】従来のクローズドブレイトンサイクルの系統
図。FIG. 2 is a system diagram of a conventional closed Brayton cycle.
【図３】クローズドブレイトンサイクル効率と圧力比の
関係図。FIG. 3 is a relational diagram of closed Brayton cycle efficiency and pressure ratio.
２ 開閉弁 ６ ガスタービン ７ 圧縮機 １１ 貯気タンク １５ 貯気用圧縮機 2 Open / close valve 6 Gas turbine 7 Compressor 11 Storage tank 15 Storage compressor
Claims (2)
用圧縮機と貯気タンクと開閉弁とを上流から順次配列し
て構成した制御流路を設けたことを特徴とするクローズ
ドブレイトンサイクル装置。1. A control flow path is provided between a discharge side and a suction side of the compressor, the control flow path being configured by sequentially arranging a storage compressor, a storage tank, and an opening / closing valve from the upstream side. Closed Brayton cycle device.
を圧縮機の吐出側から分岐して保存し、出力を増加させ
る際には保存していた系内ガスを圧縮機吸込側から系内
に還流して運転するようにしたことを特徴とするクロー
ズドブレイトンサイクル装置の運転方法。2. When reducing the output, a part of the system gas is branched from the discharge side of the compressor and stored, and when increasing the output, the stored system gas is stored on the compressor suction side. The method for operating a closed Brayton cycle device is characterized in that the system is operated by refluxing from the system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8047198A JPH09242562A (en) | 1996-03-05 | 1996-03-05 | Closed brayton cycle device, and operating method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8047198A JPH09242562A (en) | 1996-03-05 | 1996-03-05 | Closed brayton cycle device, and operating method therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09242562A true JPH09242562A (en) | 1997-09-16 |
Family
ID=12768441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8047198A Pending JPH09242562A (en) | 1996-03-05 | 1996-03-05 | Closed brayton cycle device, and operating method therefor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09242562A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003020914A (en) * | 2001-07-10 | 2003-01-24 | Kobe Steel Ltd | Closed cycle gas turbine and power generation system using the same |
| JP2013508619A (en) * | 2009-10-27 | 2013-03-07 | ゼネラル・エレクトリック・カンパニイ | System and method for recovering carbon dioxide in an air compression expansion system |
| CN112360571A (en) * | 2020-10-26 | 2021-02-12 | 北京动力机械研究所 | Low heat dissipation closed Brayton cycle thermoelectric conversion system |
-
1996
- 1996-03-05 JP JP8047198A patent/JPH09242562A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003020914A (en) * | 2001-07-10 | 2003-01-24 | Kobe Steel Ltd | Closed cycle gas turbine and power generation system using the same |
| JP4647847B2 (en) * | 2001-07-10 | 2011-03-09 | 株式会社神戸製鋼所 | Closed cycle gas turbine and power generation system using the same |
| JP2013508619A (en) * | 2009-10-27 | 2013-03-07 | ゼネラル・エレクトリック・カンパニイ | System and method for recovering carbon dioxide in an air compression expansion system |
| CN112360571A (en) * | 2020-10-26 | 2021-02-12 | 北京动力机械研究所 | Low heat dissipation closed Brayton cycle thermoelectric conversion system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100547321B1 (en) | Capacity adjustable scroll compressor | |
| US20040151964A1 (en) | Fuel cell air supply | |
| CN114856736B (en) | A control method for supercritical carbon dioxide Brayton cycle system | |
| JPS60261A (en) | refrigeration cycle | |
| CN212614894U (en) | Supercritical carbon dioxide Brayton cycle power generation system | |
| KR101674804B1 (en) | Supercritical CO2 generation system | |
| CN111594283A (en) | Two-stage turbine gas suspension ORC power generation system and control method | |
| US6145317A (en) | Steam turbine, steam turbine plant and method for cooling a steam turbine | |
| CN113137293B (en) | Supercritical carbon dioxide circulation system and turbine adjusting and emergency shutdown method | |
| CN211851943U (en) | Brayton cycle power generation system | |
| WO2013046783A1 (en) | Waste heat recovery system | |
| JPH02238185A (en) | Composite compressor | |
| CN212337391U (en) | Supercritical carbon dioxide recompression cycle power generation system | |
| CN104736952A (en) | Centrifugal compressor inlet guide vane control | |
| KR101692173B1 (en) | Exhaust heat recovery system and exhaust heat recovery method | |
| JPH09242562A (en) | Closed brayton cycle device, and operating method therefor | |
| US5024057A (en) | Exhaust-driven electric generator system for internal combustion engines | |
| JPH0777365A (en) | Cooling equipment | |
| JPH10169455A (en) | Turbo charger engine | |
| CN115750016A (en) | Shutdown system and method of supercritical carbon dioxide recompression circulating system | |
| CN212837970U (en) | Two-stage turbine gas suspension ORC power generation system | |
| JP3965706B2 (en) | Air compressor | |
| JP2790753B2 (en) | Engine exhaust energy recovery device | |
| JP2001141286A (en) | Heat recovery power generation system and operation method thereof | |
| JP3142267B2 (en) | Pump device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20031224 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20040106 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20040304 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20040720 |