JPH02204685A - Operating method for occean thermal energy generating set - Google Patents
Operating method for occean thermal energy generating setInfo
- Publication number
- JPH02204685A JPH02204685A JP1023514A JP2351489A JPH02204685A JP H02204685 A JPH02204685 A JP H02204685A JP 1023514 A JP1023514 A JP 1023514A JP 2351489 A JP2351489 A JP 2351489A JP H02204685 A JPH02204685 A JP H02204685A
- Authority
- JP
- Japan
- Prior art keywords
- seawater pump
- cold
- power generation
- generating set
- hot
- 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
- 238000011017 operating method Methods 0.000 title description 3
- 239000013535 sea water Substances 0.000 claims abstract description 46
- 238000010248 power generation Methods 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000002918 waste heat Substances 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
- Other Air-Conditioning Systems (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
この発明は、海洋環境の変化に対応して効率良く運転が
行なえる海洋温度差発電装置の運転方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method of operating an ocean temperature difference power generation device that can be operated efficiently in response to changes in the ocean environment.
［従来技術］
エンジンの排気ガス等を利用する廃熱回収発電システム
等温熱源（燃焼をともなわない）を用いたランキンサイ
クル発電システムにおいては、発電装置くタービン、発
電機）の過負荷運転は１０％程度を許容しているが、連
続運転状態では定格値を最大出力として運転されている
。そして最大出力を発生させる以上の蒸気量がタービン
に流入して、過負荷運転の状態になる恐れがある場合に
は、タービン入口の蒸気バルブ（ガバナ）を絞り蒸気流
量を制御して、過負荷運転を防止するようにしている。[Prior art] Waste heat recovery power generation system that uses engine exhaust gas, etc. In a Rankine cycle power generation system that uses an isothermal heat source (that does not involve combustion), the overload operation of the power generation device (turbine, generator) is 10 %, but in continuous operation, the rated value is used as the maximum output. If the amount of steam that exceeds the amount required to generate maximum output flows into the turbine and there is a risk of overload operation, the steam valve (governor) at the turbine inlet is throttled to control the steam flow rate. I try to prevent driving.
ランキンサイクル発電システムの一つである海洋温度差
発電装置においても、同様にタービンへの蒸気流入量が
増加して過負荷運転状態になろうとした場合、蒸気バル
ブを絞り蒸気量を制限するか、輻流タービンのノズル角
制御により蒸気量を制限して、過負荷運転の防止を図っ
ている。Similarly, in an ocean temperature difference power generation device, which is one of the Rankine cycle power generation systems, if the amount of steam flowing into the turbine increases and an overload operation state is about to occur, the steam valve should be throttled to limit the amount of steam. The amount of steam is limited by controlling the nozzle angle of the radial turbine to prevent overload operation.
［発明が解決しようとする課題］
しかしながら、従来の海洋温度差発電装置の運転方法に
は次のような問題点があった。すなわち過負荷運転にな
ろうとする度４こ、温海水で蒸発させた作動媒体の蒸気
の流量をバルブ等で制限するため、発生した蒸気の持つ
エネルギーが無駄に捨て去られることになり、ひいては
温海水ポンプおよび冷海水ポンプが無駄に運転されるこ
とになるので、海洋温度差発電装置の正味出力を低下さ
せていた。海洋温度差発電装置の発電機出力に対する所
内動力（温海水ポンプ、冷海水ポンプおよび作動媒体循
環ポンプの所用動力）の割合は大きいので、正味出力の
低下は馬鹿にならない値であった。[Problems to be Solved by the Invention] However, the conventional method of operating the ocean temperature difference power generation device has the following problems. In other words, every time an overload operation is attempted, the flow rate of the steam of the working medium evaporated with warm seawater is restricted by a valve, etc., so the energy of the generated steam is wasted and the temperature increases. Since the seawater pump and the cold seawater pump are operated in vain, the net output of the ocean temperature difference power generation device is reduced. Since the ratio of the station power (the power required for the warm seawater pump, cold seawater pump, and working medium circulation pump) to the generator output of the ocean temperature difference power generation device is large, the decrease in net output was not a trivial value.
この発明は従来技術の上記のような問題点を解消し、正
味出力の高い海洋温度差発電装置の運転方法を提供する
ことを目的としている。It is an object of the present invention to solve the above-mentioned problems of the prior art and to provide a method of operating an ocean temperature difference power generation device with a high net output.
［課題を解決するための手段］
この発明に係る海洋温度差発電装置の運転方法は、運転
環境が設計条件より良くなって許容負荷運転状態を超え
た場合、発電機の出力信号に基づき、表層温海水ポンプ
および深層冷海水ポンプの取水量を温海水ポンプ流量制
御装置および冷海水ポンプ流量制御装置により制御する
海洋温度差発電装置の運転方法である。[Means for Solving the Problems] The operating method of the ocean temperature difference power generation device according to the present invention is such that when the operating environment becomes better than the design conditions and exceeds the allowable load operating state, the surface This is a method of operating an ocean temperature difference power generation device in which the intake amount of a warm seawater pump and a deep cold seawater pump is controlled by a warm seawater pump flow rate control device and a cold seawater pump flow rate control device.
［作用］
この発明における海洋温度差発電装置の運転方法におい
ては、運転環境が設計条件より良くなって許容負荷運転
状態を超えた場合、発電機の出力信号に基づき、表層温
海水ポンプおよび深層冷海水ポンプの取水量を温海水ポ
ンプ流量制御装置および冷海水ポンプ流量制御装置によ
り制御するようにしているので、温海水ポンプおよび冷
海水ポンプの所要動力は必要最少銀の動力で済み、無駄
な動力を必要としないので、海洋温度差発電装置の正味
出力が増加する。[Function] In the operating method of the ocean temperature difference power generation device according to the present invention, when the operating environment becomes better than the design conditions and exceeds the allowable load operating state, the surface warm seawater pump and the deep cooling are activated based on the output signal of the generator. Since the water intake amount of the seawater pump is controlled by the hot seawater pump flow rate control device and the cold seawater pump flow rate control device, the power required for the hot seawater pump and cold seawater pump is the minimum amount of power required, eliminating wasted power. , the net output of the ocean thermal power generation device increases.
［実施例］
本発明の１実施例の海洋温度差発電装置の運転方法を第
１図により説明する。第１図は本発明の１実施例の海洋
温度差発電装置の運転方法を実施する海洋温度差発電装
置の装Ｗ＃Ｉ成を示す説明図である。この海洋温度差発
電装置は、タービンｌにより回転される発電機２を中心
として、作動媒体であるガス（フロン、アンモニア等低
沸点媒体）を蒸発させる表層温海水３を取水する温海水
ポンプ４と、媒体を温海水３を用いて蒸発させる蒸発器
５、媒体蒸気中の液分を分離するセパレータ６と、ター
ビンを回転させて排出された媒体を深層冷海水７で冷却
して凝縮させるための凝縮器８と、凝縮器８に冷海水７
を送る冷海水ポンプ９と、凝縮器８を出た作動媒体を受
けるための媒体タンク１０および媒体循環ポンプ１１と
から構成されている。そして発電機２には出力検出器１
２が、温海水ポンプ４には温海水ポンプ流量制御装置１
３が、また冷海水ポンプ９には冷海水ポンプ流量制御装
置１４が配備しである。[Example] A method of operating an ocean temperature difference power generation device according to an example of the present invention will be explained with reference to FIG. FIG. 1 is an explanatory diagram showing the installation W#I configuration of an ocean temperature difference power generation device that implements the method of operating the ocean temperature difference power generation device according to one embodiment of the present invention. This ocean temperature difference power generation device is centered around a generator 2 rotated by a turbine 1, and a warm seawater pump 4 that takes in surface warm seawater 3 that evaporates gas (a low boiling point medium such as fluorocarbons and ammonia) as a working medium. , an evaporator 5 for evaporating the medium using warm seawater 3, a separator 6 for separating liquid in the medium vapor, and a system for cooling and condensing the medium discharged by rotating the turbine with deep cold seawater 7. Condenser 8 and cold seawater 7 in the condenser 8
It is composed of a cold seawater pump 9 for sending, a medium tank 10 and a medium circulation pump 11 for receiving the working medium discharged from the condenser 8. And the generator 2 has an output detector 1
2, the warm seawater pump 4 has a warm seawater pump flow control device 1.
3, the cold seawater pump 9 is also equipped with a cold seawater pump flow rate control device 14.
以上のような構成になっているので、この海洋温度差発
電装置の運転中に運転環境が海洋温度差発電装置の設計
条件より良くなって許容負荷運転状態を超えて過負荷運
転状態になった場合には、その信号を発電機２の出力検
出器１２で検出し、その信号を温海水ポンプ４の温海水
ポンプ流量制御装置１３および冷海水ポンプ９の冷海水
ポンプ流量制御装置１４に送り、それぞれのポンプの流
量を制御することができる。そしてこのような運転を行
なうことにより、海洋温度差発電装置が過負荷の状態で
連続して運転されることもなく、また従来のように温海
水および冷海水取水のために無駄な動力を使用すること
もないので、相対的に正味の出力が増加する。With the above configuration, during operation of this ocean temperature difference power generation device, the operating environment becomes better than the design conditions of the ocean temperature difference power generation device, exceeding the allowable load operating state and causing an overload operation state. In this case, the output detector 12 of the generator 2 detects the signal, and sends the signal to the warm seawater pump flow rate control device 13 of the warm seawater pump 4 and the cold seawater pump flow rate control device 14 of the cold seawater pump 9, The flow rate of each pump can be controlled. By operating in this way, the ocean temperature difference power generation device will not be operated continuously under overload, and the power will not be wasted due to the intake of warm and cold seawater as in the past. Since there is nothing to do, the net output increases relatively.
なお温海水ポンプおよび冷海水ポンプの流量を制御する
方法としては、インバータ等ｊこよるポンプ駆動モータ
のモータ回転数制御や、ポンプ本体の翼角制御等適宜既
存の技術を適用すればよい。Note that as a method for controlling the flow rates of the warm seawater pump and the cold seawater pump, existing techniques such as motor rotation speed control of the pump drive motor using an inverter or the like, blade angle control of the pump body, etc. may be applied as appropriate.
［発明の効果］
本発明により、海洋温度差発電装置の正味出力が増加す
る。[Effects of the Invention] The present invention increases the net output of the ocean temperature difference power generation device.
第１図は本発明の１実施例の海洋温度差発電装置の運転
方法を実施する装置の装置構成を示す説明図である。
１・・・タービン、２・・・発電機、３・・・温海水、
４・・・温海水ポンプ、５・・・蒸発器、６・・・セパ
レータ、７・・・冷海水、８・・・凝縮器、９・・・冷
海水ポンプ、１０・・・媒体タンク、１１・・・媒体循
環ポンプ、１２・・・出力検出器、１３・・・温海水ポ
ンプ流量制御装置、１４・・・冷海水ポンプ流量制御装
置。FIG. 1 is an explanatory diagram showing the configuration of an apparatus for carrying out a method of operating an ocean temperature difference power generation apparatus according to an embodiment of the present invention. 1... Turbine, 2... Generator, 3... Warm seawater,
4... Warm seawater pump, 5... Evaporator, 6... Separator, 7... Cold seawater, 8... Condenser, 9... Cold seawater pump, 10... Medium tank, DESCRIPTION OF SYMBOLS 11... Medium circulation pump, 12... Output detector, 13... Warm seawater pump flow rate control device, 14... Cold seawater pump flow rate control device.
Claims (1)
を超えた場合、発電機の出力信号に基づき、表層温海水
ポンプおよび深層冷海水ポンプの取水量を温海水ポンプ
流量制御装置および冷海水ポンプ流量制御装置により制
御することを特徴とする海洋温度差発電装置の運転方法
。If the operating environment becomes better than the design conditions and exceeds the allowable load operating state, the intake amount of the surface warm seawater pump and deep cold seawater pump will be adjusted based on the output signal of the generator. A method of operating an ocean temperature difference power generation device, characterized in that it is controlled by a control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1023514A JPH02204685A (en) | 1989-02-01 | 1989-02-01 | Operating method for occean thermal energy generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1023514A JPH02204685A (en) | 1989-02-01 | 1989-02-01 | Operating method for occean thermal energy generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02204685A true JPH02204685A (en) | 1990-08-14 |
Family
ID=12112558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1023514A Pending JPH02204685A (en) | 1989-02-01 | 1989-02-01 | Operating method for occean thermal energy generating set |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02204685A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013040606A (en) * | 2011-08-17 | 2013-02-28 | Kazuhiko Nagashima | Method and device for highly-efficiently recovering ordinary temperature heat energy |
| JP2014526009A (en) * | 2011-06-27 | 2014-10-02 | デ・セ・エヌ・エス | Thermal energy system and method of operating thermal energy system |
| CN110821769A (en) * | 2019-10-23 | 2020-02-21 | 中海石油(中国)有限公司 | Ocean temperature difference energy system pump flow optimization control method and system |
-
1989
- 1989-02-01 JP JP1023514A patent/JPH02204685A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014526009A (en) * | 2011-06-27 | 2014-10-02 | デ・セ・エヌ・エス | Thermal energy system and method of operating thermal energy system |
| JP2013040606A (en) * | 2011-08-17 | 2013-02-28 | Kazuhiko Nagashima | Method and device for highly-efficiently recovering ordinary temperature heat energy |
| CN110821769A (en) * | 2019-10-23 | 2020-02-21 | 中海石油(中国)有限公司 | Ocean temperature difference energy system pump flow optimization control method and system |
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