JPH1061409A - Turbine oil cooling installation for power station having cooling tower - Google Patents
Turbine oil cooling installation for power station having cooling towerInfo
- Publication number
- JPH1061409A JPH1061409A JP22114496A JP22114496A JPH1061409A JP H1061409 A JPH1061409 A JP H1061409A JP 22114496 A JP22114496 A JP 22114496A JP 22114496 A JP22114496 A JP 22114496A JP H1061409 A JPH1061409 A JP H1061409A
- Authority
- JP
- Japan
- Prior art keywords
- cooling
- water
- turbine oil
- line
- cooling tower
- 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.)
- Withdrawn
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、冷却水の冷却塔を
有する発電所のタービン油冷却器の冷却水の充当を行な
うタービン油冷却設備に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a turbine oil cooling system for applying cooling water to a turbine oil cooler of a power plant having a cooling water cooling tower.
【０００２】[0002]
【従来の技術】従来火力・原子力発電設備においては、
水量、水質、立地条件上殆んど冷却水の開放循環方式の
冷却設備が採用されている。2. Description of the Related Art Conventional thermal and nuclear power plants
Most of the cooling water is open-circulated in terms of water volume, water quality and location.
【０００３】この方式の冷却設備は、冷却を終り温度の
上昇した冷却水を冷却塔で冷却し再び循環使用するもの
で、その構造は、送風機により常に冷却筒内に一定風速
の塔内気流を作り、落下する水と塔内空気を強制接触さ
せて冷却するものであり、強制通風型冷却塔といわれて
いる。この方式の冷却設備は、効率が良く安定した高い
性能をもっているため実用上は殆んどこの型式が採用さ
れている。そして、この冷却塔では、水の一部が蒸発し
て潜熱を持ち去ることによって冷却水の冷却が行なわれ
る。In this type of cooling equipment, the cooling water whose temperature has risen after cooling is cooled by a cooling tower and circulated and used again. It is made and cooled by forcibly contacting falling water with air in the tower, and is called a forced draft cooling tower. Most types of cooling equipment of this type are practically used because they have high efficiency, stable and high performance. Then, in this cooling tower, the cooling water is cooled by a part of the water evaporating and removing the latent heat.
【０００４】図２は火力、原子力発電設備における従来
の一般的な冷却水の冷却設備を示す線図で、冷却塔３１
には、工業用水タンク３２から蒸発、ブロー等による循
環水量減少に応じて工業用水が補給される。そして冷却
された工業用水は、薬注装置３３により水処理された後
循環ポンプ３４で昇圧され復水器（図示されてない）に
送水され、また分岐して軸冷却ポンプ３５で昇圧されて
タービン油冷却器３６及びその他諸々の補機３７に送水
される。FIG. 2 is a diagram showing a conventional cooling system for cooling water in a thermal or nuclear power plant.
Is supplied with industrial water from the industrial water tank 32 in response to a decrease in the amount of circulating water due to evaporation, blowing, or the like. Then, the cooled industrial water is water-treated by the chemical injection device 33 and then pressurized by the circulation pump 34 and sent to a condenser (not shown). The water is sent to the oil cooler 36 and other various auxiliary devices 37.
【０００５】このタービン油冷却器３６に供せられる冷
却水量は、復水器に供せられる分を除く水量の約１／４
〜１／３程度を占める。そして、昇温した冷却水は再び
冷却塔３１に戻る。The amount of cooling water supplied to the turbine oil cooler 36 is about ４ of the amount of water excluding the amount supplied to the condenser.
Occupies about 1/3. Then, the heated cooling water returns to the cooling tower 31 again.
【０００６】[0006]
【発明が解決しようとする課題】前述したような従来の
冷却水の冷却設備においては、どんな良質の冷却水でも
繰返し循環使用していると、大気汚染成分、溶解塩分
（カルシウム、マグネシウム）、塵埃、昆虫等の溶解な
どの複雑な条件を受け、これが蒸発分に応じて濃縮して
スケールの生成や腐食の発生を惹き起すことになる。こ
のようになると、スケールの発生による伝熱能力の低
下、ポンプ圧力損失増加の原因となり、また腐食の発生
による運転機能の低下の原因となる。In the conventional cooling water cooling system as described above, if any good quality cooling water is repeatedly circulated, air pollution components, dissolved salts (calcium and magnesium), dust And complex conditions such as the dissolution of insects and the like, which are concentrated in accordance with the amount of evaporation and cause scale formation and corrosion. This causes a reduction in heat transfer capability and an increase in pump pressure loss due to generation of scale, and a reduction in operation function due to generation of corrosion.
【０００７】本発明は、以上の問題点を解消するために
提案されたものである。The present invention has been proposed to solve the above problems.
【０００８】[0008]
【課題を解決するための手段】本発明は、冷却水の冷却
塔を有する発電所のタービン油の冷却設備において、冷
却塔への補給水の一部を抽水して冷却水としてタービン
油冷却器に供給するライン、及びタービン油冷却器を出
た冷却水を冷却塔に送水するラインを設けたことを特徴
とする。SUMMARY OF THE INVENTION The present invention relates to a turbine oil cooling system for a turbine oil cooling system of a power plant having a cooling water cooling tower. And a line for supplying cooling water from the turbine oil cooler to the cooling tower.
【０００９】本発明では、冷却塔への補給水の一部を抽
水しタービン油冷却器の冷却水に充当しているので、 （１）タービン油冷却器のスケール及び腐食の発生を防
止することができる。 （２）補機類に冷却水を送水する軸冷水ポンプ（ブース
ターポンプ）は、タービン油冷却器への冷却水を送水す
ることがないので、そのポンプ容量を大巾に削減するこ
とができる。 （３）タービン油冷却器の予備機のメンテナンスを簡素
化することができる。In the present invention, a part of the make-up water to the cooling tower is extracted and applied to the cooling water of the turbine oil cooler. (1) To prevent the scale and corrosion of the turbine oil cooler Can be. (2) The shaft chilled water pump (booster pump) for supplying cooling water to the auxiliary equipment does not supply cooling water to the turbine oil cooler, so that the pump capacity can be greatly reduced. (3) Maintenance of a spare machine for the turbine oil cooler can be simplified.
【００１０】また、タービン油冷却器でタービン油を冷
却した後の冷却水は冷却塔に戻されるために、タービン
油冷却器に使った分だけ冷却塔への補給水量を減らすこ
とになるが、タービン油冷却器に使用する冷却水量は、
通常循環冷却水の約１／１００程度であり、かつ、その
温度上昇分も通常約５℃程度で処理熱量も小さく、冷却
塔性能への影響は殆んどない。Further, since the cooling water after cooling the turbine oil with the turbine oil cooler is returned to the cooling tower, the amount of water supplied to the cooling tower is reduced by the amount used for the turbine oil cooler. The amount of cooling water used for the turbine oil cooler is
Usually, the circulating cooling water is about 1/100, the temperature rise is usually about 5 ° C., and the amount of heat to be treated is small, and there is almost no influence on the cooling tower performance.
【００１１】[0011]
【発明の実施の形態】冷却塔を有する火力・原子力発電
所のタービン油冷却設備に係る本発明の実施の一形態
を、図１によって説明する。１はライン３を通って工業
用水タンク２から図示しないポンプ又は同工業用水タン
ク２内の工業用水のヘッドによって補給水が送られる冷
却塔である。同冷却塔１の出口側のライン６には薬注装
置４が接続され、ライン６のその下流側の部分には循環
水ポンプ５が設けられている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention relating to a turbine oil cooling system of a thermal and nuclear power plant having a cooling tower will be described with reference to FIG. Reference numeral 1 denotes a cooling tower to which makeup water is sent from an industrial water tank 2 through a line 3 by a pump (not shown) or an industrial water head in the industrial water tank 2. A chemical injection device 4 is connected to a line 6 on the outlet side of the cooling tower 1, and a circulating water pump 5 is provided on a downstream portion of the line 6.
【００１２】循環水ポンプ５の下流側で図示しない復水
器へ送水を行なうライン６ａがライン６より分岐してい
る。ライン６ａの分岐点より下流側のライン６には軸冷
水ポンプ（ブースターポンプ）７が設けられ、軸冷水ポ
ンプ７の下流側でライン６は分岐して複数の補機類８の
各々に冷却水が給水されるようになっている。複数の補
機類８を出た冷却水は、合流してライン１１を経て冷却
塔１へ戻されるようになっている。A line 6 a for supplying water to a condenser (not shown) downstream of the circulating water pump 5 branches off from the line 6. A shaft chilled water pump (booster pump) 7 is provided in the line 6 downstream of the branch point of the line 6a, and the line 6 is branched downstream of the shaft chilled water pump 7 to supply cooling water to each of the plurality of auxiliary devices 8. Is supplied. The cooling water that has exited the plurality of accessories 8 is merged and returned to the cooling tower 1 via the line 11.
【００１３】前記ライン３よりタービン油冷却器９に至
るライン１０ａが分岐しており、タービン油冷却器９を
出た冷却水はライン１０ｂを経て冷却塔１に送水される
ようになっている。A line 10a from the line 3 to the turbine oil cooler 9 is branched, and cooling water exiting the turbine oil cooler 9 is sent to the cooling tower 1 via a line 10b.
【００１４】以上のように構成された本実施例では、冷
却塔１には工業用水タンク２からライン３を通って補給
水が送られる。そして冷却塔１で冷却された上ライン６
内において薬注装置４で水処理された冷却水は循環水ポ
ンプ５によって昇圧されライン６ａを経て復水器に送水
される。また、冷却水の一部は軸冷水ポンプ７によって
ブーストアップされ複数の補機類８に送水され昇温して
再び冷却塔１に戻る。In this embodiment constructed as described above, makeup water is sent from the industrial water tank 2 to the cooling tower 1 through the line 3. And the upper line 6 cooled by the cooling tower 1
The cooling water subjected to water treatment by the chemical injection device 4 therein is pressurized by the circulating water pump 5 and sent to the condenser through the line 6a. Further, a part of the cooling water is boosted up by the shaft chilled water pump 7, sent to a plurality of accessories 8, raised in temperature, and returned to the cooling tower 1 again.
【００１５】一方、タービン油冷却器９の冷却水として
は、工業用水タンク２からライン３内を流れる補給水の
一部が用いられ、この補給水の一部は、ライン３から分
岐するライン１０ａを経てタービン油冷却器９に送られ
てタービン油を冷却して昇温した後、ライン１０ｂを経
て冷却塔１に送水される。On the other hand, as the cooling water for the turbine oil cooler 9, a part of the makeup water flowing from the industrial water tank 2 through the line 3 is used. Then, after being sent to the turbine oil cooler 9 to cool the turbine oil and raise the temperature, the water is sent to the cooling tower 1 via the line 10b.
【００１６】このように、タービン油冷却器９に工業用
水タンク２からの補給水の一部を給水することによっ
て、タービン油冷却器９におけるスケール及び腐食の発
生を回避でき、また、軸冷水ポンプ７の容量を削減する
ことができ、かつ、予備タービン油冷却器９のメンテナ
ンスも楽にすることができる。As described above, by supplying a part of the makeup water from the industrial water tank 2 to the turbine oil cooler 9, it is possible to avoid the occurrence of scale and corrosion in the turbine oil cooler 9, and it is also possible to prevent the shaft chilled water pump 7 can be reduced, and maintenance of the spare turbine oil cooler 9 can be facilitated.
【００１７】[0017]
【発明の効果】本発明になる冷却水の冷却塔を有するタ
ービン油冷却設備によれば、冷却水を要する補機類の
内、比較的大きいタービン油冷却器をスケール、腐食の
発生から遠ざけることができるとともに、補機類に冷却
水を送水する軸冷水ポンプ（ブースターポンプ）のポン
プ容量を大巾に削減でき、かつ、タービン油冷却器の予
備機のメンテナンスも省略することができる。そのう
え、冷却塔性能にも影響を与えない。従って、本発明の
冷却水系統に与える効果は大きい。According to the turbine oil cooling system having a cooling water cooling tower according to the present invention, a relatively large turbine oil cooler among auxiliary equipment requiring cooling water is kept away from scale and corrosion. As a result, the pump capacity of a shaft chilled water pump (booster pump) for supplying cooling water to the auxiliary equipment can be greatly reduced, and maintenance of a spare machine for the turbine oil cooler can be omitted. Moreover, it does not affect cooling tower performance. Therefore, the effect of the present invention on the cooling water system is great.
【図１】本発明の実施の一形態の系統図である。FIG. 1 is a system diagram of an embodiment of the present invention.
【図２】従来の冷却塔を有する発電所の冷却水の冷却設
備の系統図である。FIG. 2 is a system diagram of cooling equipment for cooling water of a power plant having a conventional cooling tower.
１ 冷却塔 ２ 工業用水 ３ ライン ４ 薬注装置 ６ ライン ７ 軸冷水ポンプ ８ 補機類 ９ タービン油冷却器 １０ａ，１０ｂ ライン DESCRIPTION OF SYMBOLS 1 Cooling tower 2 Industrial water 3 Line 4 Chemical injection device 6 Line 7 Shaft chilled water pump 8 Auxiliary equipment 9 Turbine oil cooler 10a, 10b line
Claims (1)
ン油の冷却設備において、冷却塔への補給水の一部を抽
水して冷却水としてタービン油冷却器に供給するライ
ン、及びタービン油冷却器を出た冷却水を冷却塔に送水
するラインを設けたことを特徴とする冷却塔を有する発
電所のタービン油冷却設備。1. A turbine oil cooling system for a power plant having a cooling water cooling tower, wherein a line for extracting a part of makeup water to the cooling tower and supplying it as cooling water to a turbine oil cooler, and a turbine oil A turbine oil cooling facility for a power plant having a cooling tower, wherein a line for sending cooling water exiting the cooler to the cooling tower is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22114496A JPH1061409A (en) | 1996-08-22 | 1996-08-22 | Turbine oil cooling installation for power station having cooling tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22114496A JPH1061409A (en) | 1996-08-22 | 1996-08-22 | Turbine oil cooling installation for power station having cooling tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1061409A true JPH1061409A (en) | 1998-03-03 |
Family
ID=16762163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22114496A Withdrawn JPH1061409A (en) | 1996-08-22 | 1996-08-22 | Turbine oil cooling installation for power station having cooling tower |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1061409A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075210A (en) * | 2012-12-27 | 2013-05-01 | 大唐桂冠合山发电有限公司 | Method for improving starting speed of seal oil high-pressure back-up gear oil pump of turboset and adopted oiler device |
| CN114776399A (en) * | 2022-03-23 | 2022-07-22 | 中国能源建设集团广东省电力设计研究院有限公司 | Direct-current cooling water supply system capable of pumping condensate and operating steam turbine in back pressure mode |
-
1996
- 1996-08-22 JP JP22114496A patent/JPH1061409A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075210A (en) * | 2012-12-27 | 2013-05-01 | 大唐桂冠合山发电有限公司 | Method for improving starting speed of seal oil high-pressure back-up gear oil pump of turboset and adopted oiler device |
| CN114776399A (en) * | 2022-03-23 | 2022-07-22 | 中国能源建设集团广东省电力设计研究院有限公司 | Direct-current cooling water supply system capable of pumping condensate and operating steam turbine in back pressure mode |
| CN114776399B (en) * | 2022-03-23 | 2024-02-20 | 中国能源建设集团广东省电力设计研究院有限公司 | Direct-current cooling water supply system capable of extracting and condensing and back-pressure operation steam turbine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20031104 |