JPS59145308A - Condensing and deaerating system of combined cycle plant - Google Patents
Condensing and deaerating system of combined cycle plantInfo
- Publication number
- JPS59145308A JPS59145308A JP1876183A JP1876183A JPS59145308A JP S59145308 A JPS59145308 A JP S59145308A JP 1876183 A JP1876183 A JP 1876183A JP 1876183 A JP1876183 A JP 1876183A JP S59145308 A JPS59145308 A JP S59145308A
- Authority
- JP
- Japan
- Prior art keywords
- condensate
- condenser
- condensor
- starting
- combined cycle
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K9/00—Plants characterised by condensers arranged or modified to co-operate with the engines
- F01K9/02—Arrangements or modifications of condensate or air pumps
-
- 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]
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は、コンバインドサイクルプラント内の復水脱気
系統に係シ、更に詳しくには、多着の溶存酸素を有する
復水全保有する起動復水器に、所望の溶存酸素を有する
復水全保有する貯蔵設備から該復水を供給し、上記起動
復水器が設けられたプラントの起動時間の短縮を図るコ
ンバインドサイクルプラントの復水脱気系統に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a condensate deaeration system in a combined cycle plant, and more particularly, to a start-up cycle system containing all condensate containing a large amount of dissolved oxygen. Condensate degassing for a combined cycle plant that supplies condensate with a desired dissolved oxygen to the water tank from a storage facility that holds all of the condensate, thereby shortening the start-up time of a plant equipped with the above-mentioned start-up condenser. Regarding lineage.
近年、コンバインドサイクルプラントは、そのミドル運
用化が期待されている。ミドル運用化に対応するために
は、頻繁な起動、停止が要求される。停止時においては
、復水器の復水内の溶存酸素量が増力口するため、起動
時には、これを所望の溶存酸素ｔを有する復水に脱気し
た後、ボイラ給水し、ガスタービン等を起動しなければ
ならない。In recent years, combined cycle plants are expected to be used in the middle of the industry. Frequent startup and shutdown is required to support middle-level operation. When the condenser is stopped, the amount of dissolved oxygen in the condensate is boosted, so when the condenser is started, it is degassed into condensate with the desired amount of dissolved oxygen, and then water is supplied to the boiler to power the gas turbine, etc. Must be started.
しかしながら、第１図に示す如く、従来技術の起動復水
器２の脱気手段としては、起動復水器２から送出される
復水を復水再循環配管８によシ、起動復水器２内に戻入
すると共に、起動復水器２内に、補助蒸気管１０から蒸
気を導入したυ、空気抽出機４を起動復水器２に係合せ
しめ、内部を真空に保持し、脱気を行なう手段が援用さ
れていた。However, as shown in FIG. 1, as a degassing means of the startup condenser 2 in the prior art, the condensate sent out from the startup condenser 2 is transferred to the condensate recirculation pipe 8, and the startup condenser At the same time, the steam is introduced into the startup condenser 2 from the auxiliary steam pipe 10, and the air extractor 4 is engaged with the startup condenser 2 to keep the inside vacuum and deaeration. A means of doing this was used.
従って、起動復水器２内の復水が、所望の溶存酸素量を
有するものに到達する時間が長く、プラントの起動時間
がかかシ、ミドル運用化の障害となる欠点を有していた
。Therefore, it takes a long time for the condensate in the start-up condenser 2 to reach the desired amount of dissolved oxygen, and the start-up time of the plant is long, which has the disadvantage of being an obstacle to middle-scale operation. .
すなわち、第１図に示す如く、コンバインドサイクルプ
ラント内には、複数個の復水器が配設され、運転中復水
器１は目下運転中のものでｓｂ、起動復水器２は、停止
状態から起動状態におかれた復水器を示す。それぞれの
復水器には同一の脱気手段が係合している。起動復水器
２および運転中復水器１には復水管７が接続し、復水管
７内に介設される復水ポンプ５によシ復水は送出される
。That is, as shown in Fig. 1, a plurality of condensers are installed in the combined cycle plant, and the operating condenser 1 is currently in operation (sb), and the starting condenser 2 is in the stopped state. Figure 3 shows a condenser placed from a state to a start-up state. Identical degassing means are associated with each condenser. A condensate pipe 7 is connected to the startup condenser 2 and the operating condenser 1, and condensate is sent out by a condensate pump 5 interposed in the condensate pipe 7.
又、復水管７内には、復水を凝縮させるグランドコンデ
ンサ６が介設される。復水管７のグランドコンデンサ６
を出た位置には、復水再循環配管８が分岐して接続し、
復水再循環配管８は、復水再循環弁９を介して、起動復
水器２に接続している。Further, a ground condenser 6 is interposed in the condensate pipe 7 to condense condensate. Ground capacitor 6 of condensate pipe 7
The condensate recirculation pipe 8 branches and connects to the position where it exits.
The condensate recirculation line 8 is connected to the startup condenser 2 via a condensate recirculation valve 9 .
起動復水器２には、補助蒸気管１ｏから補助蒸気調節弁
１１を介して、蒸気が導入される。又、起動復水器２に
は、空気抽出管３を介して空気抽出機４が連結し、起動
復水器２内を真空に保持するようにしている。又、起動
復水器２および運転中復水器１には、補給水タンク１４
から、補給水配管１５および補給水調節弁１６を介して
補給水が導入されると共に、復水管７に分岐するスピル
オーバ管１３によシ、スピルオーバ弁１２を介し、余剰
復水が補給水タンク１４に戻入される。Steam is introduced into the startup condenser 2 from the auxiliary steam pipe 1o via the auxiliary steam control valve 11. Further, an air extractor 4 is connected to the startup condenser 2 via an air extraction pipe 3 to maintain the inside of the startup condenser 2 in a vacuum. In addition, a make-up water tank 14 is provided in the startup condenser 2 and the operating condenser 1.
From there, makeup water is introduced through the makeup water piping 15 and the makeup water adjustment valve 16 , and surplus condensate is introduced into the makeup water tank 14 via the spillover pipe 13 that branches to the condensate pipe 7 and the spillover valve 12 . will be returned to.
以上の系統によシ、起動復水器２の溶存酸素を多く含ん
だ復水を循環させ、蒸気の導入および真空保持すること
により、脱気を促進し、復水を所望の溶存酸素量を含む
ものにした後、ガスタービンの起動を行う。しかし、起
動復水器２内の復水の溶存酸素量は最大７０００ ｐｐ
ｂ 程度であシ、一方、ボイラに給水する復水の所望溶
存酸素量は５ないし１０ ｐｐｂ と低い。従って、
上記の脱気系統では、所望溶存酸素量に運するまでに約
１．２５時間も必要となる。従って、起動、停止頻度の
多いミドル運用化に対処し得ない欠点があった。In the above system, condensate containing a large amount of dissolved oxygen in the startup condenser 2 is circulated, steam is introduced, and vacuum is maintained to promote deaeration and maintain the desired amount of dissolved oxygen in the condensate. After making sure that the gas turbine is included, start the gas turbine. However, the amount of dissolved oxygen in the condensate in the startup condenser 2 is up to 7000 pp.
On the other hand, the desired amount of dissolved oxygen in the condensate water supplied to the boiler is as low as 5 to 10 ppb. Therefore,
The deaeration system described above requires about 1.25 hours to reach the desired amount of dissolved oxygen. Therefore, there was a drawback that it could not cope with middle operation where the frequency of starting and stopping was high.
本発明は、上記の欠点を解決すべく創案されたものであ
り１．その目的は、コンバインドサイクルプラントの起
動準備時間を短縮し、ミドル運用化を可能にし得るコン
バインドサイクルプラントの復水脱気系統を提供するこ
とにある。The present invention was created to solve the above-mentioned drawbacks.1. The purpose is to provide a condensate degassing system for a combined cycle plant that can shorten the start-up preparation time of the combined cycle plant and enable mid-range operation.
本発明は、上記目的を達成するために、所望の溶存酸素
量を有する復水を貯蔵する貯蔵設備を設け、該貯蔵設備
と起動状態にある起動復水器とを連結手段によ多連結し
、所望の溶存酸素量雀有する復水を調節自在に起動復水
器内に導入し、起動復水器内の復水が所望の溶存酸素量
を有する状態になる時間を早め、コンバインドサイクル
プラントの起動時間を短縮するようにしたコンバインド
サイクルプラントの復水脱気系統を特徴としたものであ
る。In order to achieve the above object, the present invention provides a storage facility for storing condensate having a desired amount of dissolved oxygen, and connects the storage facility and a starting condenser in a starting state by a connecting means. , the condensate having the desired amount of dissolved oxygen is introduced into the startup condenser in an adjustable manner, and the time for the condensate in the startup condenser to have the desired amount of dissolved oxygen is accelerated, thereby improving the efficiency of combined cycle plants. It features a condensate degassing system for a combined cycle plant that shortens start-up time.
以゛ド、本発明の一実施例を図面に基づいて説明する。 Hereinafter, one embodiment of the present invention will be described based on the drawings.
まず、本実施例の概要を第２図により説明する。First, the outline of this embodiment will be explained with reference to FIG.
本実施例では、貯蔵設備として運転中復水器１が用いら
れる。運転中復水器１内の復水は所望の溶存酸素量を有
したものが循環されている。この運転中復水器１の復水
管７と起動復水器２の復水管７とを連結手段である復水
管連結管２２によ多連結し、その間に復水管連絡弁２１
１．復水管連絡調節弁１９．２０を配設する。In this embodiment, an operating condenser 1 is used as the storage facility. During operation, condensate in the condenser 1 having a desired amount of dissolved oxygen is circulated. The condensate pipe 7 of the operating condenser 1 and the condensate pipe 7 of the start-up condenser 2 are connected to a condensate pipe connecting pipe 22 which is a connecting means, and a condensate pipe connecting valve 21 is connected between them.
1. Condensate pipe communication control valves 19 and 20 are installed.
以上の構成によシ、運転中復水器１内の復水は起動復水
器２の復水管７に導入され、その後、起動復水器２を有
するプラントへ循環されて再び起動復水器２に戻る。従
って、起動復水器２内の復水の溶存酸素量は大幅に、か
つ、速かに減少し、短時間内に所望のものとなる。According to the above configuration, the condensate in the condenser 1 during operation is introduced into the condensate pipe 7 of the startup condenser 2, and then circulated to the plant having the startup condenser 2 and returned to the startup condenser 2. Return to 2. Therefore, the amount of dissolved oxygen in the condensate in the startup condenser 2 decreases significantly and rapidly, and reaches the desired level within a short time.
次に、本実施例を更に詳しく説明する。Next, this embodiment will be explained in more detail.
運転中復水器１内の復水は、上記の如く所望の溶存酸素
量５ないし１０ ｐｐｂ の状態に保持されて、そのプ
ラント内を循環している。本実施例は、この運転中復水
器１を貯蔵設備として用いる。運転中復水器１の復水管
７のグランドコンデンサ６の下流側には、復水管弁１８
を介して連結手段の１つである分岐管２４が接続し、こ
の分岐管２４は復水管連絡調節弁２０を介し、同じく連
結手段の１つである復水管連絡管２２に接続している。During operation, the condensate in the condenser 1 is maintained at a desired dissolved oxygen level of 5 to 10 ppb as described above and circulates within the plant. In this embodiment, the condenser 1 is used as a storage facility during operation. During operation, a condensate pipe valve 18 is installed on the downstream side of the ground condenser 6 of the condensate pipe 7 of the condenser 1.
A branch pipe 24, which is one of the connecting means, is connected to the branch pipe 24, and this branch pipe 24 is connected to a condensate pipe connecting pipe 22, which is also one of the connecting means, through a condensate pipe communication control valve 20.
一方、起動復水器２の復水管７にも、同様に復水管弁１
７の下流側に、復水管連絡調節弁１９を介して分岐管２
５が接続し、分岐管２５は、同じく復水管連絡［２２に
接続している。On the other hand, the condensate pipe valve 1 is also connected to the condensate pipe 7 of the startup condenser 2.
A branch pipe 2 is connected to the downstream side of 7 via a condensate pipe communication control valve 19.
5 is connected, and the branch pipe 25 is also connected to the condensate pipe connection [22].
以上の構成により、運転中復水器１内の復水の１部は、
分岐管２４、復水管連絡管２２および分岐管２５により
起動復水器２の復水管７に導入される。又、その導入量
は復水管連絡調節弁１９゜２０等によ１節される。With the above configuration, a part of the condensate in the condenser 1 during operation is
It is introduced into the condensate pipe 7 of the startup condenser 2 through a branch pipe 24, a condensate pipe communication pipe 22, and a branch pipe 25. Further, the amount introduced is controlled by condensate pipe communication control valves 19 and 20, etc.
起動復水器２の復水管７内に導入された所望の溶存酸素
量を有する復水け、上記の如く、起動復水器２を有する
プラントに循環された後、起動復水器２内に導入される
。このため、起動復水器２内には、溶存酸素量が大きな
復水と、所望の溶存酸素量の復水が混合され、復水器２
内の復水の溶存酸素量が大幅に減少する。上記の如く、
起動復水器２には、運転中復水器１からの蒸気が導入さ
れるため、余剰復水となるが、この余剰復水は、スピル
オーバ弁１２ｉ介し、スピルオーバ管１３から補給水タ
ンク１４に回収される。一方、運転中復水器１は、復水
の一部を起動復水器２に排出するため、復水の不足が生
じるが、この不足分は、補給水タンク１４から、補給水
配管１５、補給水調節弁１６を介して導入される。補給
水タンク１４にはスピルオーバ管１３からの溶存酸素量
の大きい復水が上記の如く導入されているため、運転中
復水器１に溶存酸素量の大きな復水が補充される。しか
し、補給水調節弁１６による流量調節によシ、その復水
を１０ ｐｐｂ 以下の溶存酸素量に押えることがで
きる。The condensate having the desired amount of dissolved oxygen introduced into the condensate pipe 7 of the start-up condenser 2 is circulated to the plant having the start-up condenser 2 as described above, and then flows into the start-up condenser 2. be introduced. Therefore, condensate with a large amount of dissolved oxygen and condensate with a desired amount of dissolved oxygen are mixed in the startup condenser 2.
The amount of dissolved oxygen in the condensate decreases significantly. As above,
Steam from the condenser 1 during operation is introduced into the startup condenser 2, resulting in surplus condensate, but this surplus condensate is transferred from the spillover pipe 13 to the make-up water tank 14 via the spillover valve 12i. It will be collected. On the other hand, since the operating condenser 1 discharges a part of the condensate to the start-up condenser 2, a shortage of condensate occurs, but this shortage is made up of the makeup water pipe 15 from the makeup water tank 14. The make-up water is introduced via the make-up water control valve 16. Since condensate with a large amount of dissolved oxygen from the spillover pipe 13 is introduced into the makeup water tank 14 as described above, the condensate with a large amount of dissolved oxygen is replenished into the condenser 1 during operation. However, by controlling the flow rate using the make-up water control valve 16, the amount of condensed water can be suppressed to a dissolved oxygen amount of 10 ppb or less.
コンバインドサイクルプラントにおいては、運転中復水
器１は上記の１台に限定されず、複数器のものが普通運
転されている。従って、起動復水器２には、それぞれの
運転中復水器から所望の溶存酸素量を有する復水が導入
され得る。従って、極めて単時間内に起動復水器２の復
水を所望の溶存酸素量を含むものに変えることができる
。以上によシコンバインドサイクルプラントの起’＋ｄ
＋ 準備時間を大幅に短縮することができる。In a combined cycle plant, the number of condensers 1 in operation is not limited to the one described above, and a plurality of condensers 1 are usually operated. Therefore, condensate having a desired amount of dissolved oxygen can be introduced into the startup condenser 2 from each operating condenser. Therefore, the condensate in the startup condenser 2 can be changed to one containing the desired amount of dissolved oxygen within a very short period of time. The above is the origin of the combined cycle plant'+d
＋ Preparation time can be significantly reduced.
第３図は他の実施例を示す。FIG. 3 shows another embodiment.
本実施例では貯蔵設備として、独立に付設された大気に
非開放のネオプレーンタンク３０を用い、連結手段とし
て、起動復水器２の復水管７に連結する復水管連絡管２
３．２７および復水管連絡管２３．２７に介設される復
水管連絡弁２６．復水管連絡調節弁２８．復水管連絡ポ
ンプ２９が設けられている。なお、復水管連絡管２３は
、他の図示しない復水器の復水管にも連結している。In this embodiment, an independently attached neoprene tank 30 not open to the atmosphere is used as a storage facility, and a condensate pipe connecting pipe 2 connected to a condensate pipe 7 of a startup condenser 2 is used as a connecting means.
3.27 and the condensate pipe communication valve 26. which is interposed in the condensate pipe communication pipe 23.27. Condensate pipe communication control valve 28. A condensate pipe communication pump 29 is provided. Note that the condensate pipe communication pipe 23 is also connected to a condensate pipe of another condenser (not shown).
ネオプレーンタンク３０には、ネオプレーンタンク調節
弁３１を介し、ネオプレーンタンク連絡 。The neoprene tank 30 is connected to the neoprene tank via a neoprene tank control valve 31.
配管３２が連結し、図示しない供給源から所望の溶存酸
素量を有する復水を導入する。A pipe 32 is connected to introduce condensate having a desired amount of dissolved oxygen from a supply source (not shown).
以上の構成により、ネオプレーンタンク３０内の復水が
起動復水器２に導入され、起動復水器２内の復水を速や
かに所望の溶存酸素量を有するものにすることができる
。With the above configuration, the condensate in the neoprene tank 30 is introduced into the startup condenser 2, and the condensate in the startup condenser 2 can be quickly made to have a desired amount of dissolved oxygen.
本実施例は、他の運転中復水器に関係なく、起動復水器
２に、所望の溶存酸素量を有する復水を導入でき、必要
量の復水を常備できるので、速やかな対応が可能となる
。In this embodiment, condensate having a desired amount of dissolved oxygen can be introduced into the startup condenser 2 regardless of other operating condensers, and the necessary amount of condensate can be kept at hand, allowing prompt response. It becomes possible.
以上によ）、前記実施例と同様に、大幅なコンバインド
サイクルプラントの起動準備時間を短縮することができ
る。According to the above), similarly to the embodiment described above, the startup preparation time of the combined cycle plant can be significantly shortened.
以上の説明によって明らかの如く、本発明によれば、コ
ンバインドサイクルプラントの起動準備時間を短縮し、
そのミドル運用化が可能となる効米が上げられる。As is clear from the above explanation, according to the present invention, the start-up preparation time of a combined cycle plant can be shortened,
The benefits of making it possible to use it in the middle market will be increased.
第１図は従来技術のコンバインドサイクルプラントの復
水脱気系統を示す系統図、第２図および第３図は本発明
の実施例の系統図である。FIG. 1 is a system diagram showing a condensate deaeration system of a conventional combined cycle plant, and FIGS. 2 and 3 are system diagrams of an embodiment of the present invention.
Claims (1)
入すると共に、該復水器内に、蒸気および真空を介在せ
しめて、所望の溶存酸素量を有するように復水を脱気す
るコンバインドサイクルプラントの復水脱気系統におい
て、所望の溶存酸素量を有する復水を貯蔵する貯蔵設備
と、該貯蔵設備と起動状態にある上記コンバインドサイ
クルプラント内の起動復水器とを調節自在に連結する連
結手段とを備えたことを特徴とするコンバインドサイク
ルプラントの復水脱気系統。 ２、上記貯蔵設備が、上記コンバインドサイクルプラン
ト内の運転中の運転中復水器であることを特徴とする特
許請求の範囲第１項に記載のコンバインドサイクルプラ
ントの復水脱気系統。 ３、上記貯蔵設備が、上記コンバインドサイクルプラン
ト内に付設され、大気側に非開放のネオプＶ−ンタンク
であることを特徴とする特許請求の範囲第１項に記載の
コンバインドサイクルプラントの復水脱気系統。 ４、上記連結手段が、両者を結合する連絡配管と該連絡
配管内に設けられた調節弁とであることを特徴とする特
許請求の範囲第１項に記載のコンバインドサイクルプラ
ントの復水脱気系統。[Claims] 1. A part of the condensate sent out from the condenser is returned to the condenser, and steam and vacuum are provided in the condenser to obtain a desired amount of dissolved oxygen. In the condensate degassing system of a combined cycle plant that degasses condensate so that the condensate has A condensate deaeration system for a combined cycle plant, characterized in that it is equipped with a connecting means for adjustingably connecting a starting condenser to a starting condenser. 2. The condensate degassing system for a combined cycle plant according to claim 1, wherein the storage facility is an in-operation condenser in the combined cycle plant. 3. The condensate dewatering system for a combined cycle plant according to claim 1, wherein the storage facility is a neoprene tank attached to the combined cycle plant and not open to the atmosphere. Air system. 4. Condensate degassing for a combined cycle plant according to claim 1, wherein the connecting means is a connecting pipe that connects the two and a control valve provided in the connecting pipe. system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1876183A JPS59145308A (en) | 1983-02-09 | 1983-02-09 | Condensing and deaerating system of combined cycle plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1876183A JPS59145308A (en) | 1983-02-09 | 1983-02-09 | Condensing and deaerating system of combined cycle plant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59145308A true JPS59145308A (en) | 1984-08-20 |
| JPH0144883B2 JPH0144883B2 (en) | 1989-10-02 |
Family
ID=11980620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1876183A Granted JPS59145308A (en) | 1983-02-09 | 1983-02-09 | Condensing and deaerating system of combined cycle plant |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59145308A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59190410A (en) * | 1983-04-11 | 1984-10-29 | Hitachi Ltd | Condenser of combined plant |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55112811A (en) * | 1979-02-22 | 1980-09-01 | Toshiba Corp | Method of starting combined-cycle early |
-
1983
- 1983-02-09 JP JP1876183A patent/JPS59145308A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55112811A (en) * | 1979-02-22 | 1980-09-01 | Toshiba Corp | Method of starting combined-cycle early |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59190410A (en) * | 1983-04-11 | 1984-10-29 | Hitachi Ltd | Condenser of combined plant |
| JPH0445644B2 (en) * | 1983-04-11 | 1992-07-27 | Hitachi Ltd |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0144883B2 (en) | 1989-10-02 |
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