JPH06241404A - Power generation value control method for highly efficient garbage power generation system - Google Patents
Power generation value control method for highly efficient garbage power generation systemInfo
- Publication number
- JPH06241404A JPH06241404A JP5026971A JP2697193A JPH06241404A JP H06241404 A JPH06241404 A JP H06241404A JP 5026971 A JP5026971 A JP 5026971A JP 2697193 A JP2697193 A JP 2697193A JP H06241404 A JPH06241404 A JP H06241404A
- Authority
- JP
- Japan
- Prior art keywords
- steam
- waste heat
- heat boiler
- power generation
- amount
- 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
-
- 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
【０００１】[0001]
【産業上の利用分野】本発明は高効率ゴミ発電システム
における発電量制御方法、より詳しくは、ゴミ焼却炉の
焼却ガスを導入する廃熱ボイラのボイラーチューブの腐
蝕を防止し、かつ発電効率を大幅に向上させた高効率ゴ
ミ発電システムにおける発電量制御方法に関するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for controlling power generation in a high-efficiency waste power generation system, and more particularly, to prevent corrosion of a boiler tube of a waste heat boiler for introducing incineration gas from a waste incinerator and to improve power generation efficiency The present invention relates to a power generation amount control method in a highly efficient high-efficiency waste power generation system.
【０００２】[0002]
【従来の技術】一般にエネルギーの有効利用を計るため
ゴミ焼却炉の焼却ガスを廃熱ボイラに導入し、ここで生
成した蒸気を蒸気タービンに供給して発電することが知
られている。しかしながら、かかる発電システムにおい
ては廃熱ボイラのボイラーチューブが腐蝕するという問
題がある。2. Description of the Related Art It is generally known that in order to measure effective use of energy, incinerator gas from a refuse incinerator is introduced into a waste heat boiler, and steam generated here is supplied to a steam turbine to generate electricity. However, in such a power generation system, there is a problem that the boiler tube of the waste heat boiler is corroded.
【０００３】即ち、一般にこのゴミ焼却炉の焼却ガス中
には塩素が多量に含まれているため、ボイラーチューブ
の表面温度が３００℃程度に達すると、このボイラーチ
ューブが高温腐蝕し、一方、表面温度が１５０℃未満に
なると硫酸等による酸によって低温腐蝕が生ずるという
問題がある。しかしながら、かかる発電システムにおい
ては、蒸気タービンでの発電効率を高めるためには、こ
の廃熱ボイラで生成された蒸気を高温でもって蒸気ター
ビンに供給するのが好ましい。That is, since the incinerator gas of this refuse incinerator generally contains a large amount of chlorine, when the surface temperature of the boiler tube reaches about 300 ° C., the boiler tube is corroded at a high temperature, while the surface When the temperature is lower than 150 ° C, there is a problem that low temperature corrosion is caused by an acid such as sulfuric acid. However, in such a power generation system, in order to increase the power generation efficiency of the steam turbine, it is preferable to supply the steam generated by the waste heat boiler to the steam turbine at a high temperature.
【０００４】かかることから、本発明者はゴミ焼却炉の
焼却ガスを導入する第１の廃熱ボイラで生成された蒸気
を駆動源とする蒸気タービンにより駆動される発電機
と、ガスタービンによって駆動される発電機と、前記ガ
スタービンの排ガスを導入する第２の廃熱ボイラとより
なり、前記第１の廃熱ボイラで生成された蒸気を前記第
２の廃熱ボイラで過熱した後、前記蒸気タービンに供給
するようにした高効率ゴミ発電システムを先に提案した
（特願平３−１４７４６５号）。In view of the above, the present inventor has found that the generator driven by the steam turbine driven by the steam generated in the first waste heat boiler for introducing the incineration gas of the refuse incinerator, and the gas turbine driven by the generator. And a second waste heat boiler that introduces the exhaust gas of the gas turbine, wherein after steam generated in the first waste heat boiler is superheated in the second waste heat boiler, A high-efficiency waste power generation system for supplying to a steam turbine was previously proposed (Japanese Patent Application No. 3-147465).
【０００５】[0005]
【発明が解決しようとする課題】ところで、かかるゴミ
発電システムにおいては問題がある。即ちゴミ焼却炉で
発生する焼却ガス温度は、その燃料の種類等により所定
値に対し±３０％程度で変化する。そのため第１の廃熱
ボイラで生成される蒸気量が変化し、結果として蒸気タ
ービンで駆動される発電機の発電量が変化する。この発
電量の変化はその負荷側が所定値を保つ必要がある場合
に問題となる。However, there is a problem in such a waste power generation system. That is, the temperature of the incineration gas generated in the refuse incinerator changes by about ± 30% with respect to a predetermined value depending on the type of fuel. Therefore, the amount of steam generated in the first waste heat boiler changes, and as a result, the amount of power generation of the generator driven by the steam turbine changes. This change in the amount of power generation becomes a problem when the load side needs to maintain a predetermined value.
【０００６】[0006]
【課題を解決するための手段】本発明に係る高能率ゴミ
発電システムにおける発電量制御方法は、前記従来技術
の問題点を解決するためになされたものであって、ゴミ
焼却炉１０の焼却ガスを導入する第１の廃熱ボイラ１１
で生成された蒸気を駆動源とする蒸気タービン３により
駆動される発電機４と、ガスタービン２によって駆動さ
れる発電機１と、前記ガスタービン２の排ガスを導入す
る第２の廃熱ボイラ５とよりなり、前記第１の廃熱ボイ
ラ１１で生成された蒸気を前記第２の廃熱ボイラ５で過
熱した後、前記蒸気タービン３に供給するようにした高
効率ゴミ発電システムにおいて、前記第１の廃熱ボイラ
１１の発生蒸気量を検知し、該発生蒸気量により前記第
２の廃熱ボイラ５への給水量を制御するようにしたこと
を特徴とするものである。The method for controlling the amount of power generation in a high-efficiency waste power generation system according to the present invention has been made to solve the above-mentioned problems of the prior art, and is an incineration gas for the waste incinerator 10. First heat recovery boiler 11
A generator 4 driven by a steam turbine 3 that uses the steam generated in 1. as a drive source, a generator 1 driven by a gas turbine 2, and a second waste heat boiler 5 that introduces the exhaust gas of the gas turbine 2. In the high-efficiency waste power generation system, the steam generated in the first waste heat boiler 11 is superheated in the second waste heat boiler 5 and then supplied to the steam turbine 3. The amount of steam generated in the first waste heat boiler 11 is detected, and the amount of water supplied to the second waste heat boiler 5 is controlled by the amount of generated steam.
【０００７】[0007]
【作 用】かかる高効率ゴミ発電システムにおける発電
量制御方法によれば、ゴミ焼却炉１０の焼却ガスの温度
が所定値より低下し、第１の廃熱ボイラ１１で生成され
る蒸気量が減少すると、その蒸気量を検知器により検知
し、第２の廃熱ボイラ５への給水量を増加させ、その第
２の廃熱ボイラ５で生成した蒸気を第１の廃熱ボイラ１
１で生成した蒸気と混合して過熱し、この過熱蒸気を蒸
気タービン３へ供給して発電機４を駆動するため、ゴミ
焼却炉の焼却ガス温度の変化に関係なく一定の発電量を
得ることができる。[Operation] According to the power generation amount control method in such a high-efficiency waste power generation system, the temperature of the incineration gas in the waste incinerator 10 falls below a predetermined value, and the amount of steam generated in the first waste heat boiler 11 decreases. Then, the amount of steam is detected by the detector, the amount of water supplied to the second waste heat boiler 5 is increased, and the steam generated in the second waste heat boiler 5 is used as the first waste heat boiler 1
1. The steam generated in 1 is superheated, and this superheated steam is supplied to the steam turbine 3 to drive the generator 4. Therefore, a constant power generation amount can be obtained regardless of the change in the incinerator gas temperature of the refuse incinerator. You can
【０００８】[0008]
【実 施 例】以下図に基づき本発明による高効率ゴミ
発電システムにおける発電量制御方法の一実施例を説明
する。図においてＡは発電ゾーン、Ｂはゴミ焼却炉ゾー
ンである。発電ゾーンＡには燃料Ｆにより作動され、第
１の発電機１を駆動するガスタービン２と蒸気タービン
３により駆動される第２の発電機４と第２の廃熱ボイラ
５とが配置されている。[Examples] An example of a power generation amount control method in a high-efficiency waste power generation system according to the present invention will be described below with reference to the drawings. In the figure, A is a power generation zone and B is a refuse incinerator zone. In the power generation zone A, the second generator 4 and the second waste heat boiler 5 which are operated by the fuel F and are driven by the gas turbine 2 and the steam turbine 3 that drive the first generator 1 are arranged. There is.
【０００９】より具体的には、第２の廃熱ボイラ５には
過熱器６、蒸発器７及び予熱器８とが設けられ、この第
２の廃熱ボイラ５にガスタービン２、例えば５００℃程
度の高温排ガスＧが排ガスライン９から供給されるよう
になっている。ゴミ焼却炉ゾーンＢには焼却炉１０と第
１の廃熱ボイラ１１と排ガス処理装置１２とが設けれ
ら、焼却炉１０で発生した焼却ガスＧ' は例えば６００
℃程度で第１の廃熱ボイラ１１に導入され、流量制御弁
２４を介してボイラチューブ１３内を流れる給水を加熱
し、例えば２５０℃程度の蒸気Ｓ1 を生成する。この蒸
気Ｓ1 は蒸気ラインＬ1 から第２の廃熱ボイラ５内の過
熱器６で加熱され、３５０℃程度の加熱蒸気Ｓ2 となっ
て蒸気ラインＬ2 から蒸気タービン３に供給されてこれ
を駆動するようになっている。More specifically, the second waste heat boiler 5 is provided with a superheater 6, an evaporator 7 and a preheater 8, and the second waste heat boiler 5 has a gas turbine 2, for example 500 ° C. The high temperature exhaust gas G is supplied from the exhaust gas line 9 to some extent. The refuse incinerator zone B is provided with the incinerator 10, the first waste heat boiler 11 and the exhaust gas treatment device 12, and the incineration gas G ′ generated in the incinerator 10 is, for example, 600
The feed water which is introduced into the first waste heat boiler 11 at a temperature of about ° C and flows in the boiler tube 13 via the flow control valve 24 is heated to generate steam S 1 at a temperature of about 250 ° C, for example. This steam S 1 is heated from the steam line L 1 by the superheater 6 in the second waste heat boiler 5, becomes heated steam S 2 of about 350 ° C., and is supplied to the steam turbine 3 from the steam line L 2. Is designed to drive.
【００１０】蒸気タービン３を出た低温低圧の蒸気Ｓ3
は蒸気ラインＬ4 から復水器１４に導入され、ここで冷
却塔１５から供給される冷却水により冷却されて凝縮す
る。この凝縮水Ｗは給水管１６から予熱器８を経てその
一部が第１の廃熱ボイラ１１に、また残りが蒸発器７に
供給され、この蒸発器７で生成された蒸気Ｓ4 はドラム
１７を経て蒸気ラインＬ1 内に供給されるよう構成され
ている。Low-temperature low-pressure steam S 3 exiting the steam turbine 3.
Is introduced from the steam line L 4 into the condenser 14, where it is cooled by the cooling water supplied from the cooling tower 15 and condensed. The condensed water W is supplied from the water supply pipe 16 through the preheater 8 to a part of the first waste heat boiler 11 and the remaining part to the evaporator 7, and the steam S 4 generated in the evaporator 7 is a drum. It is configured to be supplied into the steam line L 1 via 17.
【００１１】１８は給水管１６に設けられた給水枝管で
あり、この給水枝管１８に設けられたポンプ１９を蒸気
ラインＬ5 に設けられた蒸気量検出器２０の信号Ｖ1 を
コントローラー２１に導入し、ここで作成された制御信
号Ｖ2 により制御するようになっている。即ち、第１の
廃熱ボイラ１１により生成する蒸気Ｓ1 の量が減少する
と、制御弁２４により第１の廃熱ボイラ１１への給水量
を減少させるとともにポンプ１９を作動させ給水枝管１
８を経て蒸発器７へ給水し、ここで発生する蒸気Ｓ4 の
発生量を増加させ、その蒸気Ｓ4 を蒸気ラインＬ1 に供
給し、蒸気タービン３への蒸気供給量を所定値に保つこ
とにより発電機４の発電量を保つのである。Reference numeral 18 is a water supply branch pipe provided in the water supply pipe 16, and a pump 19 provided in the water supply branch pipe 18 is provided with a signal V 1 from a steam amount detector 20 provided in a steam line L 5 to a controller 21. And is controlled by the control signal V 2 created here. That is, when the amount of steam S 1 generated by the first waste heat boiler 11 decreases, the control valve 24 decreases the amount of water supplied to the first waste heat boiler 11 and operates the pump 19 to operate the water supply branch pipe 1
Water is supplied to the evaporator 7 via 8 and the amount of steam S 4 generated here is increased, the steam S 4 is supplied to the steam line L 1 , and the amount of steam supplied to the steam turbine 3 is maintained at a predetermined value. As a result, the power generation amount of the generator 4 is maintained.
【００１２】なお、蒸気ラインＬ2 内の加熱蒸気Ｓ2 の
蒸気量を検出器２２により検知し、この信号Ｖ3 により
ガスタービン２の燃料弁２３を制御することによりガス
タービン２の出力を制御し、発電機１の発電量を制御す
ることもできる。[0012] Incidentally, detected by the detector 22 the amount of steam heating steam S 2 in the vapor line L 2, controls the output of the gas turbine 2 by controlling the fuel valve 23 of the gas turbine 2 by the signal V 3 However, it is also possible to control the power generation amount of the generator 1.
【００１３】[0013]
【発明の効果】以上の説明から明らかなように本発明に
よる高効率ゴミ発電システムにおける発電量制御方法
は、ゴミ焼却炉１０の焼却ガスを導入する第１の廃熱ボ
イラ１１で生成された蒸気を駆動源とする蒸気タービン
３により駆動される発電機４と、ガスタービン２によっ
て駆動される発電機１と、前記ガスタービン２の排ガス
を導入する第２の廃熱ボイラ５とよりなり、前記第１の
廃熱ボイラ１１で生成された蒸気を前記第２の廃熱ボイ
ラ５で過熱した後、前記蒸気タービン３に供給するよう
にした高効率ゴミ発電システムにおいて、前記第１の廃
熱ボイラ１１の発生蒸気量を検知し、該発生蒸気量によ
り前記第２の廃熱ボイラ５への給水量を制御するように
構成されている。As is apparent from the above description, the method for controlling the amount of power generation in the high-efficiency waste power generation system according to the present invention is the steam generated in the first waste heat boiler 11 for introducing the incineration gas of the waste incinerator 10. A generator 4 driven by a steam turbine 3 driven by a gas turbine 2, a generator 1 driven by a gas turbine 2, and a second waste heat boiler 5 for introducing exhaust gas from the gas turbine 2. In the high-efficiency waste power generation system in which steam generated in the first waste heat boiler 11 is superheated in the second waste heat boiler 5 and then supplied to the steam turbine 3, the first waste heat boiler The amount of steam generated by 11 is detected, and the amount of water supplied to the second waste heat boiler 5 is controlled by the amount of steam generated.
【００１４】従って、焼却炉１０の焼却ガス温度変化に
よる第１の廃熱ボイラ１１の発生蒸気量の変動を吸収
し、蒸気タービン３への送気蒸気量の変動が最小限にお
さえられることになり、所定の発電量を得ることがで
き、負荷系を安定して運転できるという効果がある。Therefore, fluctuations in the amount of steam generated in the first waste heat boiler 11 due to changes in the incinerator gas temperature in the incinerator 10 are absorbed, and fluctuations in the amount of steam sent to the steam turbine 3 are minimized. Therefore, there is an effect that a predetermined amount of power generation can be obtained and the load system can be stably operated.
【図１】本発明による高効率ゴミ発電システムにおける
発電量制御方法のシステムフロー図である。FIG. 1 is a system flow diagram of a power generation amount control method in a high efficiency garbage power generation system according to the present invention.
１，４ 発電機 ２ ガスタービン ３ 蒸気ター
ビン ５ 第２の廃熱ボイラ １０ 焼却炉 １１ 第１
の廃熱ボイラ １２ 排ガス処理装置 ２０ 蒸気量検出器 ２１
コントローラ ２２ 検出器 ２３ 燃料弁1,4 Generator 2 Gas turbine 3 Steam turbine 5 Second waste heat boiler 10 Incinerator 11 First
Waste heat boiler 12 Exhaust gas treatment device 20 Steam amount detector 21
Controller 22 Detector 23 Fuel valve
Claims (1)
１の廃熱ボイラ１１で生成された蒸気を駆動源とする蒸
気タービン３により駆動される発電機４と、ガスタービ
ン２によって駆動される発電機１と、前記ガスタービン
２の排ガスを導入する第２の廃熱ボイラ５とよりなり、
前記第１の廃熱ボイラ１１で生成された蒸気を前記第２
の廃熱ボイラ５で過熱した後、前記蒸気タービン３に供
給するようにした高効率ゴミ発電システムにおいて、 前記第１の廃熱ボイラ１１の発生蒸気量を検知し、該発
生蒸気量により前記第２の廃熱ボイラ５への給水量を制
御するようにしたことを特徴とする高効率ゴミ発電シス
テムにおける発電量制御方法。1. A generator 4 driven by a steam turbine 3 driven by steam generated in a first waste heat boiler 11 for introducing incineration gas of a refuse incinerator 10, and a gas turbine 2. And a second waste heat boiler 5 for introducing the exhaust gas from the gas turbine 2,
The steam generated in the first waste heat boiler 11 is added to the second waste heat boiler 11.
In the high-efficiency waste power generation system configured to supply the steam turbine 3 after being overheated in the waste heat boiler 5, the amount of steam generated in the first waste heat boiler 11 is detected, and the amount of steam generated is used to detect the first steam. 2. A power generation amount control method in a high-efficiency waste power generation system, characterized in that the amount of water supplied to the waste heat boiler 5 of 2 is controlled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5026971A JPH06241404A (en) | 1993-02-16 | 1993-02-16 | Power generation value control method for highly efficient garbage power generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5026971A JPH06241404A (en) | 1993-02-16 | 1993-02-16 | Power generation value control method for highly efficient garbage power generation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06241404A true JPH06241404A (en) | 1994-08-30 |
Family
ID=12208049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5026971A Pending JPH06241404A (en) | 1993-02-16 | 1993-02-16 | Power generation value control method for highly efficient garbage power generation system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06241404A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2151793A1 (en) * | 1997-11-12 | 2001-01-01 | Holter Heinz Professor Dr Sc D | Procedure for burning fossil fuels and waste |
| JP2019148379A (en) * | 2018-02-27 | 2019-09-05 | 三菱日立パワーシステムズ株式会社 | Power generation plant |
-
1993
- 1993-02-16 JP JP5026971A patent/JPH06241404A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2151793A1 (en) * | 1997-11-12 | 2001-01-01 | Holter Heinz Professor Dr Sc D | Procedure for burning fossil fuels and waste |
| JP2019148379A (en) * | 2018-02-27 | 2019-09-05 | 三菱日立パワーシステムズ株式会社 | Power generation plant |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2849140B2 (en) | Waste heat steam generation method and equipment | |
| JPH05321612A (en) | Low pressure power generating method and device therefor | |
| US6286297B1 (en) | Steam cooled type combined cycle power generation plant and operation method thereof | |
| JPH06241404A (en) | Power generation value control method for highly efficient garbage power generation system | |
| JPH10266812A (en) | Electric power control method of steam supply power generating gas turbine combined plant | |
| JPH0783005A (en) | Compound refuse power generation plant | |
| JPH06317109A (en) | Highly efficient refuse power generation system | |
| KR20200145132A (en) | Recovery of vacuum-circulated condensate in closed circuit and boiler water supply system | |
| JP2922711B2 (en) | Urban waste incineration equipment | |
| JPS61108814A (en) | Gas-steam turbine composite facility | |
| RU2067667C1 (en) | Combined-cycle plant operation method | |
| JPS6365807B2 (en) | ||
| RU2801652C1 (en) | Method of operation of the combined-cycle plant of the power plant | |
| JPH10299424A (en) | Steam temperature controlling method for refuse incinerating power plant | |
| RU2794404C1 (en) | Combined cycle unit of a power plant | |
| RU2787627C1 (en) | Method for operation of a combined gas and steam unit of a power plant | |
| JPH06272514A (en) | Back pressure controlling method for steam turbine in refuse incinerating power generation | |
| JP2951294B2 (en) | How to stop the waste heat recovery boiler | |
| JP2750784B2 (en) | Waste heat recovery method | |
| JP2815296B2 (en) | Operating method of waste heat utilization combined plant of refuse incinerator | |
| JP2009115046A (en) | Refuse power generation method | |
| JPH07119414A (en) | Method of controlling operation of refuse incinerator waste heat utilizing combined plant | |
| JPS59113213A (en) | Double-pressure type superhigh temperature and high-pressure steam turbine plant | |
| JP2740096B2 (en) | Garbage incineration equipment | |
| JPH05321611A (en) | Refuse power plant |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 19970819 |