JPH03260337A - Cogenerating system - Google Patents
Cogenerating systemInfo
- Publication number
- JPH03260337A JPH03260337A JP2058104A JP5810490A JPH03260337A JP H03260337 A JPH03260337 A JP H03260337A JP 2058104 A JP2058104 A JP 2058104A JP 5810490 A JP5810490 A JP 5810490A JP H03260337 A JPH03260337 A JP H03260337A
- Authority
- JP
- Japan
- Prior art keywords
- waste heat
- heat boiler
- boiler
- steam
- line
- 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
Links
- 239000002918 waste heat Substances 0.000 claims abstract description 32
- 239000007789 gas Substances 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 230000005611 electricity Effects 0.000 claims description 3
- 238000001704 evaporation Methods 0.000 abstract description 5
- 230000008020 evaporation Effects 0.000 abstract description 5
- 230000005494 condensation Effects 0.000 description 5
- 238000009833 condensation Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000003507 refrigerant Substances 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
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/14—Combined heat and power generation [CHP]
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Control Of Eletrric Generators (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、主として発電用ガスタービンと、その排ガス
を利用する廃熱ボイラとを用いて電力と蒸気とを同時に
取得するコージェネシステムにおいて、廃熱ボイラの休
止時のボイラ伝熱面への結露防止と、排ガス漏れに起因
する蒸気発生を防止するコージェネシステムに関するも
のである。[Detailed Description of the Invention] [Industrial Application Field] The present invention mainly relates to a cogeneration system that simultaneously obtains electric power and steam using a gas turbine for power generation and a waste heat boiler that utilizes the exhaust gas. This invention relates to a cogeneration system that prevents dew condensation on the boiler heat transfer surface when the heat boiler is inactive and prevents steam generation due to exhaust gas leakage.
近年、コージェネシステムと称し、発電用ガスタービン
の排ガスを利用して廃熱ボイラで取得した蒸気を地域冷
暖房等に供すると同時に、発生した電力を使用すること
が行われている。BACKGROUND ART In recent years, a system called a cogeneration system has been implemented in which exhaust gas from a gas turbine for power generation is used to supply steam obtained by a waste heat boiler for district heating and cooling, etc., and at the same time, the generated electric power is used.
例えば、第２図に示すごとく、発電機３を直結したガス
タービン４と、このガスタービン４の排ガスダクト５に
接続された廃熱ボイラ１とからなる電力と蒸気Ｓとを発
生する所謂コージェネシステムにおいて、冷暖房を必要
としない春、秋などの所謂中間期において、発電はする
ものの蒸気Ｓが不要になることがある。For example, as shown in FIG. 2, a so-called cogeneration system that generates electric power and steam S includes a gas turbine 4 directly connected to a generator 3 and a waste heat boiler 1 connected to an exhaust gas duct 5 of the gas turbine 4. In the so-called intermediate seasons such as spring and autumn when heating and cooling are not required, steam S may not be needed even though electricity is generated.
このような場合、廃熱ボイラ１を休止するため、ガスタ
ービン４の排ガスが廃熱ボイラ１をバイパスするように
、廃熱ボイラ１の上流にダンパーエ１を設けているが、
このようなダンパー１１は、その構造上、完全に排ガス
を遮断することが不可能であり、約１％程度の排ガスＥ
は廃熱ボイラ１に流入する。In such a case, in order to stop the waste heat boiler 1, a damper 1 is provided upstream of the waste heat boiler 1 so that the exhaust gas of the gas turbine 4 bypasses the waste heat boiler 1.
Due to its structure, such a damper 11 cannot completely block the exhaust gas, and only about 1% of the exhaust gas E
flows into the waste heat boiler 1.
従って、長期にわたって流入する排ガスの保有熱によっ
て廃熱ボイラ１内の缶水が蒸発し、その処理に困るとい
う問題があった。Therefore, there is a problem in that the canned water in the waste heat boiler 1 evaporates due to the retained heat of the exhaust gas flowing in over a long period of time, making it difficult to dispose of it.
また、高価な設備を用いて、ダンパ一部分を完全遮断し
たとしても、ボイラ伝熱面へ大気中の水分が結露し、腐
食の原因になる等の多くの不都合が発生する。Further, even if a portion of the damper is completely shut off using expensive equipment, many problems occur, such as moisture in the atmosphere condensing on the boiler heat transfer surface and causing corrosion.
なお、第２図において、２はガスタービン４へ燃料を供
給する燃料タンク、Ｗは水であり、給水ポンプ７から給
水制御弁６及びエコノマイザ−８を経てスチームドラム
９に入り、このスチームドラム９内で発生した蒸気Ｓは
、主蒸気ライン１０から図示しない冷暖房機器に供給さ
れるようになっている。さらに、この廃熱ボイラ１で熱
を奪われた排ガスＥは煙突１２から大気中に排出される
ようになっている。In FIG. 2, 2 is a fuel tank that supplies fuel to the gas turbine 4, and W is water, which enters the steam drum 9 from the water supply pump 7 via the water supply control valve 6 and the economizer 8, and is supplied to the steam drum 9. The steam S generated inside is supplied from the main steam line 10 to air conditioning equipment (not shown). Further, the exhaust gas E from which heat has been removed by the waste heat boiler 1 is discharged into the atmosphere from the chimney 12.
本発明は、かかる従来の問題を解決するためになされた
ものであり、コージェネシステムにおいて、発電はする
が、蒸気が不要になる中間期において、ダンパーから漏
れた排ガスによる蒸気発生を防止すると共に、ボイラ伝
熱管面の結露や腐食を防止するコージェネシステムを提
供することを課題とするものである。The present invention was made to solve such conventional problems, and prevents the generation of steam due to exhaust gas leaking from the damper during the intermediate period when a cogeneration system generates electricity but no longer requires steam. The object of the present invention is to provide a cogeneration system that prevents dew condensation and corrosion on the surface of boiler heat exchanger tubes.
上記の課題を解決するための手段として、本発明のコー
ジェネシステムは、発電機と、発電機駆動用ガスタービ
ンの排ガスを利用する廃熱ボイラとにより電力と蒸気と
を発生するコージェネシステムに於いて、廃熱ボイラの
休止時に廃熱ボイラ内の缶水を所定温度に維持するよう
にしたことを特徴としたものである。As a means for solving the above problems, the cogeneration system of the present invention is a cogeneration system that generates electric power and steam using a generator and a waste heat boiler that uses exhaust gas from a gas turbine for driving the generator. , the canned water in the waste heat boiler is maintained at a predetermined temperature when the waste heat boiler is stopped.
以下、図面を参照して本発明の実施例について説明する
。Embodiments of the present invention will be described below with reference to the drawings.
第１図は本発明のコージェネシステムの要部系統図であ
り、第２図の従来例と同様に、排ガスＥをバイパスする
ダンパー１１を廃熱ボイラｌの上流側に設けている。ま
た、第２図と同じ部品は同じ部品番号で示している。FIG. 1 is a system diagram of the main parts of the cogeneration system of the present invention. Similar to the conventional example shown in FIG. 2, a damper 11 for bypassing exhaust gas E is provided upstream of the waste heat boiler I. Further, the same parts as in FIG. 2 are indicated by the same part numbers.
この廃熱ボイラ１の休止時、即ちダンパー１１によって
廃熱ボイラ１の入口を遮断した時に、ダンパー１１から
ボイラ１側へ漏れる排ガスＥによってボイラ伝熱管１３
を昇温させ、ボイラ伝熱面１３の結露を防止している。When the waste heat boiler 1 is at rest, that is, when the inlet of the waste heat boiler 1 is blocked by the damper 11, the exhaust gas E leaking from the damper 11 to the boiler 1 side causes the boiler heat exchanger tubes to
is heated to prevent dew condensation on the boiler heat transfer surface 13.
他方、浸入する排ガスＥの保有熱による蒸気Ｓの発生を
防止するため、第１図に示すごとく、循環ライン２１に
ブロー冷却器１６を配設し、廃熱ボイラ１内の缶水を所
定温度に冷却するようにしている。ただし、ボイラ伝熱
面１３に結露が生じない程度の温度、例えば、６０℃程
度に冷却させるものとする。On the other hand, in order to prevent the generation of steam S due to the heat retained in the invading exhaust gas E, a blow cooler 16 is installed in the circulation line 21 as shown in FIG. I'm trying to cool it down. However, it is assumed that the boiler heat transfer surface 13 is cooled to a temperature that does not cause dew condensation, for example, about 60°C.
循環ライン２１は、ブローライン１４、蒸発防止ライン
１５、連結ライン１９及び給水ライン２０からなり、ブ
ローライン１４と蒸発ライン１５の上端はスチームドラ
ム９内の液面に開口している。前述したブロー冷却器１
６はブローライン１４に設けられているが、ブロー冷却
器１６の下流側のブローライン１４の部分と給水制御弁
６及びエコノマイザ−８を含む給水ライン２０は、補助
給水ポンプ１７を含む連結ライン１９によって連通して
いる。また、蒸発防止ライン１５の下端部は、ブロー冷
却器１６の上流側においてブローライン１４に連通して
いる。The circulation line 21 includes a blow line 14, an evaporation prevention line 15, a connection line 19, and a water supply line 20, and the upper ends of the blow line 14 and the evaporation line 15 are open to the liquid level in the steam drum 9. The aforementioned blow cooler 1
6 is provided in the blow line 14 , but the portion of the blow line 14 on the downstream side of the blow cooler 16 and the water supply line 20 including the water supply control valve 6 and the economizer 8 are connected to the connection line 19 including the auxiliary water supply pump 17 . communicated by. Further, the lower end of the evaporation prevention line 15 communicates with the blow line 14 on the upstream side of the blow cooler 16 .
図中、２２乃至２９ば、開閉弁であり、廃熱ボイラ１の
休止中、開閉弁２２，２３，２６゜２８．２９を遮断し
、２４，２５．２７を開放した状態で補助給水ポンプ１
７を運転すると、廃熱ボイラ１内の缶水は、スチームド
ラム９−蒸発防止ライン１５−ブロー冷却器１６−ブロ
ーライン１４一連結ライン１９−給水ライン２０−スチ
ームドラム９の順路を経て所定温度に冷却される。ブロ
ー冷却器１６の冷媒は冷却塔１８から供給される。In the figure, reference numerals 22 to 29 indicate on-off valves, and when the waste heat boiler 1 is inactive, the on-off valves 22, 23, 26, 28.29 are shut off, and the auxiliary water supply pump 1 is operated with the on-off valves 24, 25, and 27 open.
7, the canned water in the waste heat boiler 1 passes through the steam drum 9 - evaporation prevention line 15 - blow cooler 16 - blow line 14 connection line 19 - water supply line 20 - steam drum 9 to a predetermined temperature. is cooled to Refrigerant for the blow cooler 16 is supplied from a cooling tower 18 .
上記のように、本発明は、廃熱ボイラの休止時、廃熱ボ
イラの缶水を所定温度に冷却維持するようにしたので、
廃熱ボイラを休止する春、秋の中間期において、ダンパ
ーから漏れた排ガスによる蒸気発生を防止できると共に
、ボイラ伝熱面の結露や腐食を防止できるようになる。As described above, in the present invention, the canned water of the waste heat boiler is kept cooled to a predetermined temperature when the waste heat boiler is stopped.
During the spring and autumn periods when the waste heat boiler is shut down, it is possible to prevent the generation of steam due to exhaust gas leaking from the damper, and also to prevent dew condensation and corrosion on the boiler heat transfer surface.
第１図は本発明にかかるコージェネシステムの要部系統
図、第２図は従来のコージェネシステムの系統図である
。
１・・・廃熱ボイラ、３・・・発電機、４・・・ガスタ
ービン。FIG. 1 is a system diagram of main parts of a cogeneration system according to the present invention, and FIG. 2 is a system diagram of a conventional cogeneration system. 1... Waste heat boiler, 3... Generator, 4... Gas turbine.
Claims (1)
する廃熱ボイラとにより電力と蒸気とを発生するコージ
ェネシステムにおいて、廃熱ボイラの休止時に廃熱ボイ
ラ内の缶水を所定温度に維持するようにしたコージェネ
システム。In a cogeneration system that generates electricity and steam using a generator and a waste heat boiler that uses exhaust gas from a gas turbine to drive the generator, canned water in the waste heat boiler is maintained at a predetermined temperature when the waste heat boiler is out of service. A cogeneration system designed to
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2058104A JPH0647952B2 (en) | 1990-03-12 | 1990-03-12 | Cogeneration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2058104A JPH0647952B2 (en) | 1990-03-12 | 1990-03-12 | Cogeneration system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03260337A true JPH03260337A (en) | 1991-11-20 |
| JPH0647952B2 JPH0647952B2 (en) | 1994-06-22 |
Family
ID=13074653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2058104A Expired - Lifetime JPH0647952B2 (en) | 1990-03-12 | 1990-03-12 | Cogeneration system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0647952B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160090696A (en) | 2015-01-22 | 2016-08-01 | 주식회사 한국 지오텍 | Apparatus and method for soft soil improving ungi automated management system |
-
1990
- 1990-03-12 JP JP2058104A patent/JPH0647952B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160090696A (en) | 2015-01-22 | 2016-08-01 | 주식회사 한국 지오텍 | Apparatus and method for soft soil improving ungi automated management system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0647952B2 (en) | 1994-06-22 |
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