JPH0575958B2 - - Google Patents
Info
- Publication number
- JPH0575958B2 JPH0575958B2 JP21043384A JP21043384A JPH0575958B2 JP H0575958 B2 JPH0575958 B2 JP H0575958B2 JP 21043384 A JP21043384 A JP 21043384A JP 21043384 A JP21043384 A JP 21043384A JP H0575958 B2 JPH0575958 B2 JP H0575958B2
- Authority
- JP
- Japan
- Prior art keywords
- condenser
- combined
- hotwell
- block
- compartment
- 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.)
- Expired - Lifetime
Links
- 239000007789 gas Substances 0.000 claims description 6
- 239000002918 waste heat Substances 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 7
- 239000001301 oxygen Substances 0.000 description 7
- 229910052760 oxygen Inorganic materials 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 210000004907 gland Anatomy 0.000 description 4
- 238000010248 power generation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
-
- 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)
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明はガスタービンと蒸気タービンとの組合
せを複数備えてなるコンバインドプラントに係
り、特にその蒸気タービン用の復水装置に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a combined plant comprising a plurality of combinations of gas turbines and steam turbines, and particularly to a condensing device for the steam turbine.
ガスタービンの廃熱を回収して蒸気を発生せし
め、この蒸気によつて蒸気タービンを駆動するコ
ンバインドブロツクを複数組設置したコンバイン
ド発電プラントにおいては、電力需要の少ない夜
間には、その一部のブロツクを運転して残部を休
止せしめるといつた運用が行われる。
In a combined power generation plant where multiple sets of combined blocks are installed, which recovers waste heat from a gas turbine to generate steam and uses this steam to drive a steam turbine, some of the blocks are Operation is carried out by operating one unit and stopping the rest.
こうしたコンバインド発電プラントにおいて、
夜間停止されていたブロツクを再起動する場合、
廃熱回収用ボイラへの給水（すなわち、復水器の
中の復水）中の酸素濃度をできるだけ低く保つこ
とが要求される。 In these combined power generation plants,
When restarting a block that was stopped overnight,
It is required to keep the oxygen concentration in the water supply to the waste heat recovery boiler (ie, the condensate in the condenser) as low as possible.
休止していた復水器中の復水に溶存している酸
素濃度を低くするための従来技術としては、
(a) 酸素濃度の高い復水を、復水再循環や補助蒸
気導入などによつて脱気する方式、および
(b) 停止中のブロツクの復水器について、そのホ
ツトウエル内の復水と大気とが接触しないよう
にして復水の純度を（休止中も）運転中に同一
レベルに保つ方式とが有る。 Conventional techniques for lowering the concentration of oxygen dissolved in condensate in a condenser that has been inactive include (a) recirculating condensate with a high oxygen concentration or introducing auxiliary steam; and (b) for condensers of stopped blocks, the purity of the condensate is maintained at the same level during operation (even during stoppage) by preventing contact between the condensate in the hot well and the atmosphere. There is a method to keep it.
前記(a)の方式を採用しようとすると各種の脱気
機構を復水装置に追加する必要があり系統が複雑
になること、また起動準備時間が長いことなどに
より、経済性、運転、保守の面に難点がある。 If method (a) is adopted, it will be necessary to add various deaeration mechanisms to the condenser, which will complicate the system, and it will take a long time to prepare for start-up, resulting in problems with economic efficiency, operation, and maintenance. There is a problem with the surface.
また、前記(b)の方式については特願昭58−
62300号（特開昭59−190410号公報参照）として
別途出願中のごとく、休止中のブロツクの復水器
胴体を稼働中のブロツクの復水器胴体に接続する
ことも考えられるが、停止したブロツクから運転
中のブロツクへ流入するグランド蒸気、漏洩空気
を処理するために系統が複雑になること、及び付
属装置の容量が大きくなることなどの不具合を伴
う。 In addition, regarding the method (b) above, the patent application No. 58-
It is possible to connect the condenser body of an inactive block to the condenser body of an operating block, as has been filed separately as No. 62300 (see Japanese Patent Application Laid-Open No. 1984-190410), but This is accompanied by problems such as a complicated system to handle the gland steam flowing into the operating block and leaked air, and an increase in the capacity of the attached equipment.
本発明は上述の事情に鑑みて為されたもので、
休止中のブロツクの復水器のホツトウエルの真空
を維持することができ、しかも簡単な構成で経済
性が良く信頼性の高い、コンバインドプラントの
復水装置を提供しようとするものである。
The present invention was made in view of the above circumstances, and
To provide a condensing device for a combined plant that can maintain the vacuum in the hot well of the condenser of a block during suspension, has a simple configuration, is economical, and has high reliability.
上記の目的を達成する為に創作した本発明の基
本的原則を次に略延する。
The basic principles of the present invention, created to achieve the above objectives, are summarized below.
本発明は、復水器のホツトウエル上部に仕切板
を設けてこのホツトウエルと胴体とを区画し、停
止中にホツトウエル内の復水が大気と接触しない
ように遮断し、停止中の復水器ホツトウエル区画
と運転中の復水器とを配管によつて連通させ、停
止中の復水器ホツトウエル区画の真空を維持する
ことによつて、復水の純度を保つものである。 The present invention provides a partition plate above the hotwell of the condenser to separate the hotwell from the body, and prevents the condensate in the hotwell from coming into contact with the atmosphere while the condenser is stopped. The purity of the condensate is maintained by communicating the compartment with the condenser in operation via piping and maintaining the vacuum in the condenser hotwell compartment when the condenser is stopped.
上記の原理に基づいて、前記の目的（簡単な構
成で、休止中の復水器の真空を維持すること）を
達成する為、本発明にかかる復水装置は、ガスタ
ービンと、上記ガスタービンの廃熱を回収して駆
動される蒸気タービンとを組み合わせてコンバイ
ンドブロツクを構成し、上記のコンバインドブロ
ツクを複数組設置したコンバインドプラントにお
いて、各コンバインドブロツクに設けられた蒸気
タービンの復水器内部を仕切つて胴体区画とホツ
トウエル区画とに区分し、かつ、前記複数組のコ
ンバインドブロツクに設けられた複数個の復水器
の間において、少なくとも１基の復水器のホツト
ウエル区画とその他の復水器とを接触する配管を
設けるとともに、上記配管に開閉弁を設けたこと
を特徴とする。 Based on the above principle, in order to achieve the above object (maintaining the vacuum of the condenser during rest with a simple configuration), the condensing device according to the present invention includes a gas turbine and the gas turbine. In a combined plant where multiple sets of the above combined blocks are installed, the inside of the condenser of the steam turbine installed in each combined block is partitioned into a fuselage compartment and a hotwell compartment, and between the plurality of condensers provided in the plurality of sets of combined blocks, the hotwell compartment of at least one condenser and the other condensers. The present invention is characterized in that a pipe is provided in contact with the pipe, and an on-off valve is provided in the pipe.
上に述べた本発明の要旨を更に要約して略述す
ると、本発明の復水装置は、高純度に保たれるべ
き復水を貯蔵するホツトウエル区画のみの真空を
維持せんとするものであり、このため、ホツトウ
エル区画と胴体区画との間を仕切つて遮断する。
こうした構成により、タービングランド蒸気の供
給、グランド蒸気排出系統の追設、空気抽出系連
絡配管の追設、グランド蒸気復水器および真空ポ
ンプ容量の増加を必要とせずに休止中の復水器の
ホツトウエル区画の真空が維持され、復水中への
酸素溶入が防止される。 To further summarize and briefly summarize the gist of the present invention described above, the condensing device of the present invention is intended to maintain a vacuum only in the hotwell section that stores condensate that should be kept at a high purity. , Therefore, the hotwell compartment and the fuselage compartment are partitioned and isolated.
With this configuration, there is no need to supply turbine gland steam, add a gland steam exhaust system, add air extraction system connection piping, or increase the capacity of the gland steam condenser and vacuum pump. A vacuum is maintained in the hotwell compartment to prevent oxygen from entering the condensate.
次に、本発明の１実施例を第１図について説明
する。
Next, one embodiment of the present invention will be described with reference to FIG.
本図は、複数組のコンバインドブロツクを設け
たコンバインド発電プラントの内の２組のブロツ
クを描いた系統図であつて、図示のおよびは
それぞれ１組のコンバインドブロツクである。 This figure is a system diagram depicting two sets of blocks in a combined power generation plant provided with a plurality of sets of combined blocks.
前記のコンバインドブロツクにおいて、１は
発電機Ｇを駆動している蒸気タービン、２は復水
器である。 In the above-mentioned combined block, 1 is a steam turbine driving a generator G, and 2 is a condenser.
上記の復水器２を仕切板４によつて胴体区画３
とホツトウエル区画５とに区分する。６は復水連
絡管、７は復水遮断弁である。 The above condenser 2 is connected to the fuselage section 3 by the partition plate 4.
and Hotswell Section 5. 6 is a condensate communication pipe, and 7 is a condensate cutoff valve.
コンバインドブロツクの構成は前記のコンバ
インドブロツクと同様であつて、図面参照番号
にそれぞれダツシを付して示した構成部材はコン
バインドブロツクにおけるダツシ無しの図面参
照番号を付した構成部材に対応している。 The structure of the combined block is similar to that of the above-described combined block, and the component parts shown with a dash in each drawing reference number correspond to the component parts in the combined block with the drawing reference number without a dash.
ブロツクの復水器２とブロツクの復水器
２′との間にホツトウエル区画連絡管８を設け、
胴体区画開閉弁９，９′を介して胴体区画３，
３′にそれぞれ接続するとともに、ホツトウエル
区画開閉弁１０，１０′を介してホツトウエル区
画５，５′にそれぞれ接続する。 A hotwell compartment connecting pipe 8 is provided between the block condenser 2 and the block condenser 2',
The fuselage compartment 3, via the fuselage compartment opening/closing valves 9, 9'
3', respectively, and to Hotwell compartments 5, 5' via Hotwell compartment opening/closing valves 10, 10', respectively.
本第１図は、コンバインドブロツクが休止
中、コンバインドブロツクが稼働中の状態を表
わしており、黒く塗り潰した弁は閉塞されている
弁を、塗り潰していない弁は開通している弁を、
それぞれ表わしている。 This Figure 1 shows the combined block in operation while the combined block is at rest. Valves shaded in black indicate valves that are closed, and valves that are not shaded indicate valves that are open.
each represents.
この状態で、休止中のブロツクの復水器２の
ホツトウエル区画５は、ホツトウエル連絡管８に
よつて稼働中のブロツクの復水器２′の胴体区
画３′に接続されている。この為、休止中のブロ
ツクの復水器ホツトウエル区画５は、稼働中の
復水器胴体区画３′と同レベルの真空に保たれる。
従つて、ホツトウエル区画５内の復水の酸素濃度
は、休止中においても運転中と同一レベルの高純
度に保たれ、いつでも運転再開に対応できる。 In this state, the hotwell section 5 of the condenser 2 of the inactive block is connected by the hotwell connecting pipe 8 to the body section 3' of the condenser 2' of the operating block. For this reason, the condenser hotwell section 5 of the idle block is maintained at the same level of vacuum as the condenser body section 3' of the operating block.
Therefore, the oxygen concentration of the condensate in the hotwell compartment 5 is maintained at the same high level of purity even during suspension, and is ready for restarting operation at any time.
第１図においては、ブロツクが休止してブロ
ツクが稼働中の状態を例示したが、この逆に、
ブロツクを運転してブロツクを休止せしめる
運用の場合においても同様の効果が得られる。 In Fig. 1, a state where the block is at rest and the block is in operation is illustrated, but in contrast,
A similar effect can be obtained in the case of operation in which blocks are operated and blocks are stopped.
また、第１図は、コンバインド発電プラントを
構成している複数組のコンバインドブロツク中の
２組のブロツク，を示したが、ホツトウエル
区画連絡管８を全ブロツクに接続することによ
り、（詳しくは、胴体区画開閉弁及びホツトウエ
ル区画開閉弁をそれぞれ介して全コンバインドブ
ロツクの復水器の胴体区画及びホツトウエル区画
に接続することにより）任意のブロツクを運転し
たり休止せしめたりする運用をした場合、該任意
ブロツクの復水器のホツトウエル区画を常に高真
空に維持して酸素濃度の上昇を防止できる。 Furthermore, although FIG. 1 shows two sets of blocks among a plurality of sets of combined blocks constituting a combined power generation plant, by connecting the hotwell section connecting pipe 8 to all the blocks (in detail, If any block is operated or stopped (by connecting to the fuselage compartment and hotwell compartment of the condenser of all combined blocks through the fuselage compartment on-off valve and the hotwell compartment on-off valve, respectively), the said arbitrary The hotwell section of the block's condenser can be maintained at high vacuum at all times to prevent an increase in oxygen concentration.
特に、本実施例は休止中の復水器について、そ
のホツトウエル区画のみの真空を維持する構造で
あるため、停止中のブロツクから運転中のブロツ
クに流入する蒸気、空気がほとんどなく、１ブロ
ツクのみ運転し、残り全ブロツクを停止しても運
転中の復水器への影響はほとんどない。また連絡
配管８を流れる蒸気、空気量は微少であるため、
サイズは極く小さいもので足りる。 In particular, this embodiment has a structure in which vacuum is maintained only in the hotwell section of the condenser when it is inactive, so almost no steam or air flows from the inactive block to the operating block, and only one block Even if the remaining blocks are stopped, there is almost no effect on the condenser that is in operation. In addition, since the amount of steam and air flowing through the connecting pipe 8 is minute,
A very small size is sufficient.
以上詳述したように、本発明を適用すると簡単
な構成で休止中のブロツクの復水器のホツトウエ
ルの真空を維持して復水の酸素濃度の上昇を防止
することができ、これにより信頼性にすぐれたコ
ンバインドプラントを、極めて経済的に提供する
ことができるという効果を奏する。
As described in detail above, by applying the present invention, it is possible to maintain the vacuum in the hot well of the condenser of an idle block with a simple configuration and prevent an increase in the oxygen concentration of the condensate, thereby improving reliability. This has the effect of being able to provide a combined plant with excellent performance at an extremely economical cost.
第１図は本発明の一実施例に係る復水装置を示
す系統図である。
１，１′……蒸気タービン、２，２′……復水
器、３，３′……胴体区画、４，４′……ホツトウ
エル上部仕切板、５，５′……ホツトウエル区画、
６，６′……復水連絡管、７，７′……復水遮断
弁、８……ホツトウエル区画連絡配管、９，９′
……胴体区画開閉弁、１０，１０′……ホツトウ
エル区画開閉弁、，……コンバインドブロツ
ク。
FIG. 1 is a system diagram showing a condensing device according to an embodiment of the present invention. 1, 1'... Steam turbine, 2, 2'... Condenser, 3, 3'... Fuselage section, 4, 4'... Hotwell upper partition plate, 5, 5'... Hotwell section,
6, 6'... Condensate connection pipe, 7, 7'... Condensate cutoff valve, 8... Hotwell compartment connection pipe, 9, 9'
...Body compartment opening/closing valve, 10,10'...Hotwell compartment opening/closing valve, ,...Combined block.
Claims (1)
回収して駆動される蒸気タービンとを組み合わせ
てコンバインドブロツクを構成し、上記のコンバ
インドブロツクを複数組設置したコンバインドプ
ラントにおいて、各コンバインドブロツクに設け
られた蒸気タービンの復水器内部を仕切つて胴体
区画とホツトウエル区画とに区分し、かつ、前記
複数組のコンバインドブロツクに設けられた複数
個の復水器の間において、少なくとも１基の復水
器のホツトウエル区画とその他の復水器とを接続
する配管を設けるとともに、上記配管に開閉弁を
設けたことを特徴とするコンバインドプラントの
復水装置。1. In a combined plant in which a gas turbine and a steam turbine driven by recovering the waste heat of the gas turbine are combined to form a combined block, and multiple sets of the above combined blocks are installed, a The inside of the condenser of the steam turbine is partitioned into a body section and a hotwell section, and at least one condenser is installed between the plurality of condensers provided in the plurality of sets of combined blocks. 1. A condensing device for a combined plant, characterized in that piping is provided for connecting a hot well section and other condensers, and an on-off valve is provided in the piping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21043384A JPS6189486A (en) | 1984-10-09 | 1984-10-09 | Combined plant condensate equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21043384A JPS6189486A (en) | 1984-10-09 | 1984-10-09 | Combined plant condensate equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6189486A JPS6189486A (en) | 1986-05-07 |
| JPH0575958B2 true JPH0575958B2 (en) | 1993-10-21 |
Family
ID=16589239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21043384A Granted JPS6189486A (en) | 1984-10-09 | 1984-10-09 | Combined plant condensate equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6189486A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0295704A (en) * | 1988-09-30 | 1990-04-06 | Toshiba Corp | Starting-up method for steam plant and condenser adopted therefor |
| JP2593577B2 (en) * | 1990-08-31 | 1997-03-26 | 株式会社東芝 | Operation control method and operation control device for combined cycle power plant |
| JP2576316B2 (en) * | 1991-09-20 | 1997-01-29 | 株式会社日立製作所 | Condenser |
| EP2829692A1 (en) * | 2013-07-25 | 2015-01-28 | Siemens Aktiengesellschaft | Liquid/steam cycle and steam power plant with the liquid/steam cycle |
-
1984
- 1984-10-09 JP JP21043384A patent/JPS6189486A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6189486A (en) | 1986-05-07 |
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