JPH01224405A - Binary electricity generator using bottom sea water - Google Patents
Binary electricity generator using bottom sea waterInfo
- Publication number
- JPH01224405A JPH01224405A JP63049153A JP4915388A JPH01224405A JP H01224405 A JPH01224405 A JP H01224405A JP 63049153 A JP63049153 A JP 63049153A JP 4915388 A JP4915388 A JP 4915388A JP H01224405 A JPH01224405 A JP H01224405A
- Authority
- JP
- Japan
- Prior art keywords
- seawater
- condenser
- power generation
- working fluid
- pump
- 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
- 239000013535 sea water Substances 0.000 title claims description 30
- 230000005611 electricity Effects 0.000 title 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- 238000010248 power generation Methods 0.000 claims description 19
- 239000012530 fluid Substances 0.000 claims description 18
- 239000000498 cooling water Substances 0.000 claims description 5
- 238000001816 cooling Methods 0.000 description 8
- 230000007423 decrease Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 229910002056 binary alloy Inorganic materials 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001932 seasonal effect Effects 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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
Landscapes
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
産１上皇且■丘！
この発明は、特に離島や人工島等において電源を確保す
るのに好適な、下層海水を利用したバイナリ−発電装置
に関する。[Detailed description of the invention] The first retired emperor and the hill! The present invention relates to a binary power generation device using lower seawater, which is particularly suitable for securing a power source on remote islands, artificial islands, etc.
逆米五１屯
例えば特開昭６０−１４４５９４号公報に記載されてい
るバイナリ−発電装置は、第２図に示すように、蒸発器
（２）、蒸気原動機（４）、凝縮器（６）、およびポン
プ（８）を直列に接続して閉じた作動流体ループを構成
し、この作動流体ループ内で作動流体としてフロンを循
環させるようにしている。しかして液相のフロンが蒸発
器（２）にて熱源から熱を奪って蒸発し、発生し・た高
温・高圧のフロン蒸気は蒸気原動機（４）に供給され、
発電機（１０）を駆動するのに利用される。仕事を終え
て低温・低圧となったフロン蒸気は、蒸気原動機（４）
から排出されると凝縮器（６）へ進み、そこで冷却水に
熱を与えて凝縮する。凝縮して液相となったフロンは、
ポンプ（８）で再び蒸発器（２）へ送られる。For example, the binary power generation device described in Japanese Patent Application Laid-open No. 144594/1983 has an evaporator (2), a steam motor (4), a condenser (6), as shown in FIG. , and the pump (8) are connected in series to form a closed working fluid loop, and fluorocarbon is circulated as the working fluid within this working fluid loop. Then, the liquid phase Freon absorbs heat from the heat source and evaporates in the evaporator (2), and the generated high temperature and high pressure Freon vapor is supplied to the steam motor (4).
It is used to drive the generator (10). After completing its work, the fluorocarbon vapor, which has become low temperature and low pressure, is used as a steam engine (4)
When the water is discharged from the cooling water, it goes to the condenser (6), where it heats the cooling water and condenses it. CFCs that have condensed into a liquid phase are
The pump (8) sends it again to the evaporator (2).
４ ° と る− ′離島等に
おける電源としてバイナリ−発電を利用する場合、従来
のバイナリ−発電装置では凝縮器に供給する冷却水の冷
却熱源にクーリングタワー（１２）を用いていたため、
気温の高い夏期には冷却能力が低下して発電出力が少な
くなり、気温の低い冬期には冷却能力が高く、したがっ
て発電出力が最大となる。しかし、電力負荷の方は冬期
よりも夏期に増大するので、発電設備としては夏期の電
力負荷に対応しうる能力が必要とされ、このため設備が
全体的に過大なものとならざるを得なかった。When using binary power generation as a power source on remote islands, etc., conventional binary power generation equipment uses a cooling tower (12) as a cooling heat source for the cooling water supplied to the condenser.
In the summer when the temperature is high, the cooling capacity decreases and the power generation output decreases, while in the cold winter the cooling capacity is high and therefore the power generation output is at its maximum. However, since the power load increases in the summer than in the winter, power generation equipment must have the ability to handle the power load in the summer, and as a result, the overall equipment has to be oversized. Ta.
この発明は、このような問題点に鑑み、小型で経済的な
バイナリ−発電装置を提供せんとするものである。In view of these problems, the present invention aims to provide a small and economical binary power generator.
−゛ るための゛
この発明は、蒸発器、蒸発原動機、凝縮器およびポンプ
を直列に接続した作動流体ループ内で作動流体を循環さ
せ、蒸気原動機で発電機を駆動するようにしたタイプの
バイナリ−発電装置であって、凝縮器に供給する冷却水
として下層海水を使用するとともに、凝縮器から排出さ
れる当該海水で水車タービンを回すようにした。- This invention provides a type of binary system in which a working fluid is circulated in a working fluid loop in which an evaporator, an evaporation motor, a condenser, and a pump are connected in series, and the steam motor drives a generator. - This is a power generation device in which lower seawater is used as cooling water supplied to the condenser, and the water turbine is rotated by the seawater discharged from the condenser.
作■
下層海水は季節による温度変化が少ないため、凝縮器の
冷却能力を季節に関係なくほぼ一定に維持することが可
能となり、したがって、発電出力が年間を通じてほぼ一
定となる。■ Since lower seawater has little seasonal temperature change, it is possible to maintain the cooling capacity of the condenser at a nearly constant level regardless of the season, and therefore, the power output remains almost constant throughout the year.
また、凝縮器から排出される海水で水車タービンを回す
ことにより、下層海水を波み上げて発電設備に所定圧力
で供給するのに要するポンプ動力を、少なくとも一部回
収することができる。Furthermore, by rotating the water turbine with the seawater discharged from the condenser, at least a portion of the pump power required to raise the lower seawater and supply it to the power generation equipment at a predetermined pressure can be recovered.
実Ｊ１舛
以下、第１図に示すこの発明の実施例について説明する
。The embodiment of the present invention shown in FIG. 1 will now be described.
この実施例は、温熱源として地熱水を使用し、冷熱源に
下層海水を使用したバイナリ−発電装置である。This embodiment is a binary power generation device that uses geothermal water as a heat source and lower seawater as a cold source.
作動流体ループは参照符号（Ｌ）で指しであるが、図か
ら明らかなように、第２図に示したものと異なるところ
はない。すなわち、作動流体ループ（Ｌ）は、蒸発器（
２）、蒸気原動機（４）、＃検器（６）、および作動流
体ポンプ（８）を直列に接続して閉ループを構成してい
る。作動流体ループ（Ｌ）内を循環させる作動流体とし
ては、フロンを代表例として種々知られているものの中
から適宜選択することができる。また、各構成要素につ
いても、−船釣に知られている種々タイプのなかから適
当なものを選択して使用することができる。例えば蒸気
原動機（４）には、通常の蒸気タービンのほか、前記の
特開昭６０−１４４５９４号公報に記載されているスク
リューエキスパンダのような容積式膨張機を使用するこ
ともできる。勿論、蒸気原動機（４）の出力軸は発電機
（１０）と連結する。The working fluid loop is designated by the reference numeral (L) and, as can be seen, does not differ from that shown in FIG. 2. That is, the working fluid loop (L) is connected to the evaporator (
2), a steam motor (4), a #detector (6), and a working fluid pump (8) are connected in series to form a closed loop. The working fluid to be circulated within the working fluid loop (L) can be appropriately selected from various known working fluids, with Freon being a typical example. Also, for each component, an appropriate one can be selected from among the various types known for boat fishing. For example, as the steam engine (4), in addition to a normal steam turbine, a positive displacement expander such as the screw expander described in the above-mentioned Japanese Patent Laid-Open No. 60-144594 can be used. Of course, the output shaft of the steam engine (4) is connected to the generator (10).
凝縮器（６）には、海水取水ポンプ（１４）と海水供給
ポンプ（１６）とによって下層海水が供給される。海水
取水ポンプ（１４）は下層海水を取り入れるため海中に
設置しである。なお、ここに下層海水とは、水温が安定
しており季節等によって大きく変動することがないとい
う程度の意である。Lower seawater is supplied to the condenser (6) by a seawater intake pump (14) and a seawater supply pump (16). The seawater intake pump (14) is installed underwater to take in lower layer seawater. Note that the term "lower seawater" here means that the water temperature is stable and does not vary greatly depending on the season.
海水供給ポンプ（１６）は陸上に設置され、海水取水ポ
ンプ（１４）から送られてくる下層海水を、所定圧力で
発電装置の凝縮器（６）へ供給する。海水供給ポンプ（
１６）はモータ（１８）で駆動される。このモータ（１
８）には水車タービン（２０）を連結してあり、凝縮器
（６）から排出される海水はこの水車タービン（２０）
に導かれ、水車タービン（２０）を回したうえで海に放
流される。離島等においては、発電設備の設置場所が海
面より１０ｍ以上高くなることが多いため、海水供給ポ
ンプ（１６）の所要動力が大きくなる。そのため−発電
装置のいわゆる所内率が高くなってＮＥＴ出力が低下す
る。海水供給ポンプ（１６）から吐出された海水で水車
タービン（２０）を駆動することにより、ポンプ動力を
一部回収して所内率を削減することができる。The seawater supply pump (16) is installed on land, and supplies the lower seawater sent from the seawater intake pump (14) to the condenser (6) of the power generation device at a predetermined pressure. Seawater supply pump (
16) is driven by a motor (18). This motor (1
8) is connected to a water turbine (20), and the seawater discharged from the condenser (6) is connected to the water turbine (20).
The water is guided into the water, rotates a water turbine (20), and then is discharged into the sea. On remote islands, etc., the installation location of the power generation equipment is often 10 m or more higher than the sea level, so the power required for the seawater supply pump (16) becomes large. Therefore, the so-called on-site rate of the power generation device increases and the NET output decreases. By driving the water turbine (20) with seawater discharged from the seawater supply pump (16), it is possible to partially recover the pump power and reduce the station efficiency.
蒸発器（６）には適当な熱源流体を供給するが、この実
施例では地熱水により昇温せしめた温水を供給するよう
にしている。すなわち、地熱水は一部タンク（２２）に
溜め、地熱水ポンプ（２４）で熱交換器（２６）へ送ら
れ、温水に熱を与えた後タンクに戻される。なお、タン
ク（２２）内の地熱水は、温泉や暖房その他の用途にも
通貢利用することができる。熱交換器（２６）にて地熱
水から熱を受は取って昇温した温水は温水ポンプ（２８
）で蒸発器（２）に送られ、作動流体に熱を与えた後熱
交換器（２６）に還流する。An appropriate heat source fluid is supplied to the evaporator (6), and in this embodiment, hot water heated by geothermal water is supplied. That is, a portion of the geothermal water is stored in a tank (22), sent to a heat exchanger (26) by a geothermal water pump (24), and returned to the tank after giving heat to the hot water. The geothermal water in the tank (22) can also be used for hot springs, heating, and other purposes. The heat exchanger (26) receives heat from the geothermal water and raises the temperature of the hot water, which is then pumped into the hot water pump (28).
) is sent to the evaporator (2), and after giving heat to the working fluid, it is refluxed to the heat exchanger (26).
発尻■前来
以上説明したように、この発明によれば、冷却熱源に温
度変化の少ない下層海水を使用するので、凝縮器の冷却
能力が季節等によって変動することなく年間を通じて安
定する。したがって、発電能力を電力負荷の増大する夏
期に対応して設定しても、従来のように冬期に冷却能力
が増大して余分な発電出力を抱えることになるといった
ような不具合がなく、小型で経済的なバイナリ−発電装
置を提供することができる。As described above, according to the present invention, since lower seawater, which has little temperature change, is used as the cooling heat source, the cooling capacity of the condenser is stable throughout the year without fluctuations depending on the season. Therefore, even if the power generation capacity is set to correspond to the summer when the electric power load increases, there is no problem such as the conventional problem of increasing the cooling capacity in the winter and having to deal with excess power generation output, and it is small and compact. An economical binary power generation device can be provided.
さらに、凝縮器から排出される海水を水車タービンに導
いて海水ポンプの動力回収を図ったので、より一層の経
済性が実現し、特にｉ島等における電源確保に好適な実
用性あるバイナリ−発電装置が得られる。In addition, the seawater discharged from the condenser is guided to a water turbine to recover the power for the seawater pump, making it even more economical and a practical binary power generation system that is especially suitable for securing power on I-Island. A device is obtained.
第１図はこの発明の実施例を示すブロック線図、
第２図は従来のバイナリ−発電装置を示すブロック線図
である。
Ｌ：作動流体ループ
２：蒸発器
４：蒸気原動機
６：凝縮器
８：作動流体ポンプ
１０：発電機
１４：海水取水ポンプ
１６：海水供給ポンプ
１８：モーフ
２０：水車タービン
特 許 出 願 人 株式会社 日阪製作所代
理 人 江 原 省 吾ｒ−
”’−＞１１．１．ｊFIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is a block diagram showing a conventional binary power generator. L: Working fluid loop 2: Evaporator 4: Steam prime mover 6: Condenser 8: Working fluid pump 10: Generator 14: Seawater intake pump 16: Seawater supply pump 18: Morph 20: Water turbine patent application Person Co., Ltd. Hisaka factory fee
Mr. Gangwon Province Ir-
”'->11.1.j
Claims (1)
に接続した作動流体ループ内で作動流体を循環させ、蒸
気原動機により発電機を駆動するようにしたバイナリー
発電装置において、凝縮器に供給する冷却水として下層
海水を使用するとともに、凝縮器から排出される海水を
水車タービンに導いて海水ポンプの動力を回収するよう
にしたことを特徴とするバイナリー発電装置。(1) In a binary power generation system in which the working fluid is circulated in a working fluid loop in which the evaporator, steam prime mover, condenser, and pump are connected in series, and the steam prime mover drives the generator, the working fluid is supplied to the condenser. A binary power generation device characterized by using lower seawater as cooling water and by guiding seawater discharged from a condenser to a water turbine to recover power for a seawater pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63049153A JPH01224405A (en) | 1988-03-01 | 1988-03-01 | Binary electricity generator using bottom sea water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63049153A JPH01224405A (en) | 1988-03-01 | 1988-03-01 | Binary electricity generator using bottom sea water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01224405A true JPH01224405A (en) | 1989-09-07 |
Family
ID=12823153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63049153A Pending JPH01224405A (en) | 1988-03-01 | 1988-03-01 | Binary electricity generator using bottom sea water |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01224405A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06249128A (en) * | 1992-11-07 | 1994-09-06 | Naohisa Sawada | Thermoelectric supply method which contributes to conservation of environment |
| JP2013040606A (en) * | 2011-08-17 | 2013-02-28 | Kazuhiko Nagashima | Method and device for highly-efficiently recovering ordinary temperature heat energy |
| GB2523273A (en) * | 2012-06-25 | 2015-08-19 | Douglas Edwards | Water power |
| WO2016098192A1 (en) * | 2014-12-17 | 2016-06-23 | 三菱日立パワーシステムズ株式会社 | Geothermal power generation system |
| US11022103B2 (en) | 2012-04-30 | 2021-06-01 | Douglas Edwards | Apparatus, system, and method for raising deep ocean water |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5759403A (en) * | 1980-09-24 | 1982-04-09 | Hitachi Ltd | Induction motor type electric motor vehicle |
| JPS5925004A (en) * | 1982-08-03 | 1984-02-08 | Niigata Eng Co Ltd | Steam power plant |
-
1988
- 1988-03-01 JP JP63049153A patent/JPH01224405A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5759403A (en) * | 1980-09-24 | 1982-04-09 | Hitachi Ltd | Induction motor type electric motor vehicle |
| JPS5925004A (en) * | 1982-08-03 | 1984-02-08 | Niigata Eng Co Ltd | Steam power plant |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06249128A (en) * | 1992-11-07 | 1994-09-06 | Naohisa Sawada | Thermoelectric supply method which contributes to conservation of environment |
| JP2013040606A (en) * | 2011-08-17 | 2013-02-28 | Kazuhiko Nagashima | Method and device for highly-efficiently recovering ordinary temperature heat energy |
| US11022103B2 (en) | 2012-04-30 | 2021-06-01 | Douglas Edwards | Apparatus, system, and method for raising deep ocean water |
| GB2523273A (en) * | 2012-06-25 | 2015-08-19 | Douglas Edwards | Water power |
| GB2523273B (en) * | 2012-06-25 | 2015-11-25 | Douglas Edwards | Water power |
| WO2016098192A1 (en) * | 2014-12-17 | 2016-06-23 | 三菱日立パワーシステムズ株式会社 | Geothermal power generation system |
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