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JP2009162210A - Binary heat source power plant - Google Patents

Binary heat source power plant Download PDF

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Publication number
JP2009162210A
JP2009162210A JP2008024473A JP2008024473A JP2009162210A JP 2009162210 A JP2009162210 A JP 2009162210A JP 2008024473 A JP2008024473 A JP 2008024473A JP 2008024473 A JP2008024473 A JP 2008024473A JP 2009162210 A JP2009162210 A JP 2009162210A
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Japan
Prior art keywords
working fluid
heat
electric power
heat exchanger
distribution pipe
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JP2008024473A
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Japanese (ja)
Inventor
Tatsumi Akimine
辰己 秋峯
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Individual
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Priority to JP2008024473A priority Critical patent/JP2009162210A/en
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    • 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
    • Y02E10/10—Geothermal energy
    • 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
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/44—Heat exchange systems
    • 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
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/46—Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines

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Abstract

<P>PROBLEM TO BE SOLVED: To provide economical electric power, to generate clean electric power not emitting CO<SB>2</SB>, and to stably supply electric power. <P>SOLUTION: Two heat sources of sunlight and geothermal heat (hot spring) are used for two heat exchangers as electric power sources. A working fluid (water or mixture of water and ammonia) is heated, a turbine is rotated by the release of the pressure of the heated working fluid, and the rotation of the turbine is converted to electricity by a generator. An exhaust working fluid after power generation is cooled by an ice heat exchanger and re-circulated to the heating. Electricity can be generated economically since electric power sources are free of charge, a plant can contribute to the prevention of global warming since the emission of CO<SB>2</SB>is zero, and electric power can be stably supplied since geothermal heat (hot spring) is used. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

発明の詳細な説明Detailed Description of the Invention

本発明は、氷冷却法を用いたタービン発電で、太陽光熱と地中熱又は温泉の二者熱源を複合利用した発電プラントに関するThe present invention relates to a power generation plant using a combination of solar heat and underground heat or hot springs in turbine power generation using an ice cooling method.

従来混合媒体を作動流体とした海洋温度差発電が研究されているが、商業発電として実用化されていない。
太陽光を化学反応して電気に変換する太陽電池発電が普及している。
地熱を利用した地熱発電があるが本格的普及にはいたって居ない。Conventionally, ocean thermal power generation using a mixed medium as a working fluid has been studied, but has not been put to practical use as commercial power generation.
Solar cell power generation that chemically converts sunlight into electricity has become widespread.
There is geothermal power generation using geothermal heat, but it has not been fully spread.

１９９７年、特許第０６４９９８５号 ２００７ 特許第４００６５４５号1997, Patent No. 0649985 2007 Patent No. 4006545

発明が解決しようとする課題Problems to be solved by the invention

太陽電池発電はシリコンが高価であるため設備コスト高でる、又シリコンを使用しない太陽電池発電もあるが、発電能力が弱小である雨天時は発電しない効率が悪い、ため原子力発電に比して発電コストが割高になつている。Solar cell power generation is expensive due to the high cost of silicon, and there is also solar cell power generation that does not use silicon. The cost is high.

海洋温度差発電は発電源が無料であるが加熱温度が低いため発電能力が低い、又設備投資が多額となるので結果発電コスト高となる。Ocean thermal power generation is free of power generation, but the power generation capacity is low due to low heating temperature, and the capital investment is large, resulting in high power generation costs.

本発明は、発電源が無料で有る太陽光熱と極めて低コストの地熱の二者熱源を利用することにより低コスト発電と、電力の安定供給と、ＣＯ２を排出しないクリーンな発電を目的とするThe present invention aims to achieve low-cost power generation, stable power supply, and clean power generation that does not emit CO 2 by using a two-part heat source of solar heat and a very low-cost geothermal power source that is free of power generation.

上記目的を達成するために、太陽光熱と日本に豊富にある、地中熱の併用で発電する。In order to achieve the above purpose, power is generated by using solar heat and geothermal heat, which is abundant in Japan.

発明の効果The invention's effect

極めて電力源が低コストであるため発電の経済性を提供する。
ＣＯ２の排出がゼロであるため地球温暖化抑止に貢献する。
地中熱の利用により天候に影響されること無く安定して電力が供給出来る。
太陽光反射鏡や蓄熱材を複合利用して太陽光を効率良く発電に活用することが出来る
日本には、地熱（温泉）源が豊富に有り地熱を発電に有効に活用する意義は地球温暖化抑止上多大で有る。
発電後の作動流体を氷冷却するので冷却水の得られにくい地帯（山岳地帯等）での地熱発電が出来る、氷溶水はタンクに貯水して又製氷にリサイクルする。Since the power source is extremely low cost, it provides the economics of power generation.
Contributes to the prevention of global warming because CO 2 emissions are zero.
By using geothermal heat, power can be supplied stably without being affected by the weather.
In Japan, where sunlight can be efficiently used for power generation by combining solar reflectors and heat storage materials, there are abundant geothermal (hot spring) sources, and the significance of effectively using geothermal heat for power generation is global warming There is a great deal of deterrence.
Since the working fluid after power generation is ice-cooled, geothermal power generation is possible in areas where it is difficult to obtain cooling water (mountainous areas, etc.). Ice melt water is stored in tanks and recycled to ice making.

発明の実施の形態を実施例にもとずき図面を参照して説明する。
図１、作動流体を各流通パイプ１に封入して、給作動流体ポンプ２を駆動し作動流体を太陽光熱交換器３に送入して太陽光で一次加熱する、
次に地熱熱交換器４に送入して作動流体を二次加熱して作動流体の放出圧力でタービン５を回転して同軸にある発電機６でタービンの回転力を電力に変換する、発電後の作動流体は氷熱交換器７で冷却して給作動流体ポンプ２を流通して継続循環する。An embodiment of the invention will be described based on an example with reference to the drawings.
FIG. 1, the working fluid is enclosed in each distribution pipe 1, the feed working fluid pump 2 is driven, the working fluid is sent to the solar heat exchanger 3, and primary heating is performed with sunlight.
Next, it is fed into the geothermal heat exchanger 4 and the working fluid is secondarily heated to rotate the turbine 5 with the discharge pressure of the working fluid, and the coaxial generator 6 converts the rotational force of the turbine into electric power. The subsequent working fluid is cooled by the ice heat exchanger 7 and circulates through the supply working fluid pump 2 to be continuously circulated.

太陽光熱交換器３の内部に蓄熱材８を備えて、そして太陽光反射鏡１０で太陽光を集光した光で蓄熱材８を反射光加熱して蓄熱する、日没後しばらくは蓄熱材８の蓄熱で作動流体の加熱が出来る。The heat storage material 8 is provided inside the solar heat exchanger 3, and the heat storage material 8 is reflected and heated by the light collected by the sunlight reflecting mirror 10, and the heat storage material 8 is stored for a while after sunset. The working fluid can be heated by heat storage.

本発明の実施例の概略正面図である。It is a schematic front view of the Example of this invention. 本発明の太陽光熱交換器３の縦断面図である。It is a longitudinal cross-sectional view of the solar heat exchanger 3 of this invention.

符号の説明Explanation of symbols

１、流通パイプ
２、給作動流体ポンプ
３、太陽光熱交換器
４、地熱熱交換器
５、タービン
６、発電機
７、氷熱交換器
８蓄熱材
９作動流体加熱室
１０太陽光反射鏡
１１氷溶水排水パイプ
１２冷却水パイプDESCRIPTION OF SYMBOLS 1, Distribution pipe 2, Supply hydraulic fluid pump 3, Solar heat exchanger 4, Geothermal heat exchanger 5, Turbine 6, Generator 7, Ice heat exchanger 8 Thermal storage material 9 Working fluid heating chamber 10 Solar reflector 11 Ice Dissolved water drain pipe 12 Cooling water pipe

Claims (2)

作動流体（水、又はアンモニアと水の混合液）を流通パイプ（１）に封入して、
給作動流体ポンプ（２）を駆動して、作動流体を流通パイプ（１）を通じて太陽光熱交換器（３）内に送入する、太陽光熱交換器（３）に送入し作動流体は、太陽光熱によって一次加熱される、流通パイプ（１）を通じて作動流体は地熱熱交換器（４）に送入する、作動流体は地熱熱交換器（４）で二次加熱する、その作動流体の放出圧力でタービン（５）を回転して同軸に有る発電機（６）でタービン（５）の回転駆動を電機に変換する、発電後の作動流体は流通パイプ（１）を通じて氷熱交換器（７）に送入して冷却する、冷却した作動流体は流通パイプ（１）を通じて給作動流体ポンプ（２）に継続循環することを特徴とする、複合熱源発電プラント。Enclose the working fluid (water or a mixture of ammonia and water) in the distribution pipe (1),
The feed working fluid pump (2) is driven and the working fluid is fed into the solar heat exchanger (3) through the distribution pipe (1). The working fluid is primarily heated by light heat, the working fluid is sent to the geothermal heat exchanger (4) through the distribution pipe (1), the working fluid is secondarily heated by the geothermal heat exchanger (4), and the discharge pressure of the working fluid The turbine (5) is rotated to convert the rotational drive of the turbine (5) into an electric machine by a coaxial generator (6). The working fluid after power generation is supplied to the ice heat exchanger (7) through the distribution pipe (1). The combined heat source power plant is characterized in that the cooled working fluid that is sent to and cooled is continuously circulated to the feed working fluid pump (2) through the distribution pipe (1). 請求項１記載において、複合熱源発電プラントの
太陽光熱交換器（３）の内部に蓄熱材（８）を備え、太陽光反射鏡（１０）を備えて太陽光を太陽光反射鏡（１０）で集光した光を蓄熱材（８）に照射して加熱して日没後蓄熱材（８）の蓄熱で作動流体を加熱構成することを特徴とした発電プラント。2. The solar heat exchanger (3) of the combined heat source power plant according to claim 1, comprising a heat storage material (8), a solar reflector (10), and sunlight reflected by the solar reflector (10). A power plant characterized in that the heat storage material (8) is irradiated with the condensed light and heated to heat the working fluid by the heat storage of the heat storage material (8) after sunset.
JP2008024473A 2008-01-07 2008-01-07 Binary heat source power plant Pending JP2009162210A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008024473A JP2009162210A (en) 2008-01-07 2008-01-07 Binary heat source power plant

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Application Number Priority Date Filing Date Title
JP2008024473A JP2009162210A (en) 2008-01-07 2008-01-07 Binary heat source power plant

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011058367A (en) * 2009-09-07 2011-03-24 Nippon Eco Solutions Inc Compound energy utilization system
WO2012073676A1 (en) * 2010-11-29 2012-06-07 三菱重工業株式会社 Solar heat receiving vessel

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011058367A (en) * 2009-09-07 2011-03-24 Nippon Eco Solutions Inc Compound energy utilization system
WO2012073676A1 (en) * 2010-11-29 2012-06-07 三菱重工業株式会社 Solar heat receiving vessel
US9032730B2 (en) 2010-11-29 2015-05-19 Mitsubishi Heavey Industries, Ltd. Solar receiving

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