CN115263699A - Working medium circulating type ocean temperature difference energy power generation system - Google Patents
Working medium circulating type ocean temperature difference energy power generation system Download PDFInfo
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- CN115263699A CN115263699A CN202210714462.4A CN202210714462A CN115263699A CN 115263699 A CN115263699 A CN 115263699A CN 202210714462 A CN202210714462 A CN 202210714462A CN 115263699 A CN115263699 A CN 115263699A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G7/00—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
- F03G7/04—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using pressure differences or thermal differences occurring in nature
- F03G7/05—Ocean thermal energy conversion, i.e. OTEC
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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
- Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
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Abstract
The invention discloses a working medium circulating type ocean temperature difference energy power generation system, which comprises: the turbine is used for driving the generator to generate electricity; the working medium heating pipeline heats the liquid circulating working medium flowing through the working medium heating pipeline by utilizing the seawater in the sea area with the first temperature to form a gaseous circulating working medium, and the gaseous circulating working medium is conveyed to the turbine; the working medium condensation pipeline utilizes the seawater in the second temperature sea area to absorb heat of the gaseous circulating working medium flowing through the working medium condensation pipeline after the turbine generates electricity to form a liquid circulating working medium, and the temperature of the seawater in the first temperature sea area is higher than that of the seawater in the second temperature sea area. The invention adopts a working medium circulation mode to realize the in-situ heating and condensation of the working medium, thus greatly reducing the work loss required by pumping the seawater and the energy loss in the transmission process, and being beneficial to greatly reducing the operation investment energy of a power generation system.
Description
Technical Field
The invention relates to the technical field of ocean temperature difference energy power generation, in particular to a working medium circulating type ocean temperature difference energy power generation system.
Background
The development and utilization of renewable energy sources play an important role in meeting energy requirements, improving energy structure, reducing environmental pollution, promoting economic development and the like, and an effective solution is provided for contradictions between human development and earth environment protection. Ocean energy is a renewable energy source which is highly concerned by world researchers due to the characteristics of large resource reserves, cleanness, no pollution and the like, wherein ocean temperature difference energy is the ocean energy type with the most stable energy and the highest density. So far, the core technology of the ocean thermal energy power generation technology is mastered in a few developed countries, commercial power stations are successfully built, and the power generation scale is continuously improved.
At present, the thermodynamic cycle efficiency is a key problem of limiting ocean thermal energy power generation, and because the ocean temperature difference is small, the temperature difference between the surface layer and the deep seawater is 20-25 ℃, and the theoretical calculation of the cycle efficiency is only 6.7%. The existing research direction for improving thermodynamic cycle efficiency mainly comprises two aspects, on one hand, the research on novel efficient cycle working media, such as non-azeotropic working media, ensures that the working media have a temperature sliding function, improves the matching property with heat source temperature change, reduces the irreversible loss of heat exchange in the evaporation and condensation processes, and improves cycle performance and efficiency. On the other hand, the thermoelectric energy power generation system is improved, the cycle efficiency is improved by improving the power generation system and equipment, such as multi-stage power generation cycle, effect improvement of an evaporator and a condenser, increase of an ejector and the like, heat recovery of the cycle is increased, and ineffective heat loss in the cycle is reduced. However, the current research does not change the cycle essential defects of the ocean thermal energy power generation system, and the conventional cycle system consumes the most energy to pump the surface layer hot seawater and the deep layer cold seawater for promoting the cycle power generation of the working medium, which results in the following disadvantages: (1) a large amount of energy is required for pumping the seawater; (2) A large amount of energy loss exists in the transportation process of the seawater; (3) The structural design of the evaporator and the condenser is complex, energy loss exists in heat exchange, and equipment loss and maintenance are difficult; (4) The high energy losses result in the structural dimensions of the circulation system having to be large enough to obtain the generation benefits. The defects limit the technical research and application range of ocean temperature difference energy power generation and the development process of large-scale commercial operation to a great extent, so that more updated scientific technologies and breakthroughs in design of a circulating system are needed in solving the problems of energy loss and heat exchange design reduction, the circulating efficiency is fundamentally improved from the circulating system, and the method is an important research direction for improving the ocean temperature difference energy power generation technology in the future.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a working medium circulation type ocean temperature difference energy power generation system, which adopts a working medium circulation mode to realize in-situ heating and condensation of a working medium, thus greatly reducing the work loss required by pumping seawater and the energy loss in the transmission process, and being beneficial to greatly reducing the operation investment energy of the power generation system.
In order to achieve the purpose, the invention can adopt the following technical scheme:
a working medium circulation type ocean temperature difference energy power generation system comprises:
a turbine for driving a generator to generate electricity;
the working medium heating pipelines are arranged in a first temperature sea area in parallel, utilize seawater in the first temperature sea area to heat a liquid circulating working medium flowing through the working medium heating pipelines to form a gaseous circulating working medium, and convey the gaseous circulating working medium to the turbine;
and the working medium condensation pipeline is arranged in a second temperature sea area, and seawater in the second temperature sea area is utilized to absorb heat of gaseous circulating working medium flowing through the working medium condensation pipeline after the turbine generates power to form liquid circulating working medium, wherein the seawater temperature in the first temperature sea area is higher than that in the second temperature sea area.
The working medium circulating type ocean temperature difference energy power generation system further comprises a heat storage layer arranged outside the working medium heating pipeline.
The working medium circulating type ocean temperature difference energy power generation system further comprises a working medium heating pipeline arranged in the vertical direction, and a working medium condensing pipeline arranged in the horizontal direction.
The working medium circulating type ocean temperature difference energy power generation system is characterized in that a first working medium pump and a first one-way valve are arranged between the turbine and the working medium condensation pipeline.
The working medium circulation type ocean temperature difference energy power generation system is characterized in that a check valve is further arranged at the downstream of the outlet of the turbine.
The working medium circulating type ocean temperature difference energy power generation system is characterized in that a working medium liquid storage tank is further arranged at the downstream of the outlet of the working medium condensation pipeline.
The working medium circulation type ocean temperature difference energy power generation system is characterized in that a second one-way valve is further arranged between the working medium storage tank and the working medium condensation pipeline.
The working medium circulating type ocean temperature difference energy power generation system is characterized in that a second working medium pump and a third one-way valve are further arranged between the working medium liquid storage tank and the working medium heating pipeline.
The working medium circulating type ocean temperature difference energy power generation system further comprises a working medium heating pipeline and a working medium condensing pipeline, wherein the working medium heating pipeline and the working medium condensing pipeline are in any one of pipeline shapes, spiral shapes or flat plates.
Compared with the prior art, the invention has the beneficial effects that:
1. the system of the invention cancels the process requirements of pumping hot seawater and cold seawater, keeps the ocean temperature difference in situ, adopts a working medium circulation mode to realize the in-situ heating and condensation of the working medium, thus greatly reducing the work loss required by pumping seawater and the energy loss in the transmission process, and being beneficial to greatly reducing the operation investment energy of the power generation system.
2. According to the system, complex equipment such as an evaporator and a condenser are omitted, and the mode of heating and condensing the working medium is changed, so that the equipment requirement of the ocean temperature difference energy power generation circulating system can be simplified, and the maintenance requirement of the equipment and the energy loss caused by heat exchange can be reduced.
3. The high energy loss problem of the prior art leads to the structural size of the circulating system to be large enough to obtain the generating benefit. The system provided by the invention can greatly improve the circulation efficiency of the circulation system in a working medium in-situ circulation mode, and the size of the circulation system can realize miniaturization and enlarge the application range of the system.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a working medium circulation type ocean thermal energy power generation system according to an embodiment of the invention.
Wherein: 1. a first working medium heating pipeline; 2. a second working medium heating pipeline; 3. a turbine; 4. a first working medium pump; 5. a working medium condensing pipeline; 6. a working medium liquid storage tank; 7. a second working medium pump; 8. a check valve; 9. a first check valve; 10. a second one-way valve; 11. a third check valve; 12. and a heat storage layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Example (b):
it should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It will be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in an orientation or positional relationship indicated in the drawings for convenience and simplicity of description only and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the invention.
In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. Furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the second feature or the first and second features may be indirectly contacting each other through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
The system provided by the invention omits the step of sucking hot and cold seawater, directly locates the working medium heating pipeline in the hot seawater area, locates the working medium condensing pipeline in the cold seawater area, enables the working medium to directly circulate in the hot seawater area and the cold seawater area, namely establishes a circulating system directly taking the working medium as a carrier, realizes in-situ heating and condensation of the working medium, and further realizes that the working medium form changes to drive turbine power generation, thereby reducing energy loss and improving circulation efficiency.
Referring to fig. 1, the invention provides a working medium circulation type ocean temperature difference energy power generation system, which adopts a working medium circulation mode to realize in-situ heating and condensation of a working medium, so that work loss required by pumping seawater and energy loss in a transmission process can be greatly reduced, and the operation investment energy of the power generation system can be greatly reduced. Meanwhile, the system of the invention cancels complex equipment such as an evaporator, a condenser and the like, and can simplify the equipment requirement of the ocean thermal energy power generation circulating system due to changing the heating and condensing modes of the working medium, thereby reducing the maintenance requirement of the equipment and the energy loss caused by heat exchange. In addition, the system of the invention not only can greatly improve the circulation efficiency of the circulation system, but also can realize miniaturization of the circulation system and enlarge the application range of the system by a working medium in-situ circulation mode.
Referring to fig. 1, fig. 1 shows a working medium circulation type ocean thermal energy power generation system, which includes: the system comprises a turbine 3, a plurality of working medium heating pipelines and a working medium condensing pipeline 5, wherein the turbine 3 is used for driving a generator to generate electricity; the working medium heating pipelines are arranged in a first temperature sea area, and are used for heating liquid circulating working media flowing through the working medium heating pipelines by utilizing seawater in the first temperature sea area to form gaseous circulating working media and conveying the gaseous circulating working media to the turbine 3; the working medium condensation pipeline 5 is arranged in a second temperature sea area, seawater in the second temperature sea area is utilized to enable the turbine 3 to generate electricity and then flow out, and the seawater flows through the gaseous circulating working medium to absorb heat to form a liquid circulating working medium, and the temperature of the seawater in the first temperature sea area is higher than that of the seawater in the second temperature sea area.
Specifically, the working medium heating pipeline comprises a liquid working medium input port and a gaseous working medium output port, the working medium condensing pipeline 5 comprises an exhaust gas working medium input port and a liquid working medium output port, wherein the gaseous working medium output port is connected with an inlet of the turbine 3, when the device is used, liquid working medium enters the working medium heating pipeline from the liquid working medium input port to be heated, gasified working medium is conveyed to the turbine 3 from the gaseous working medium output port of the working medium heating pipeline to generate power, then the working medium is output from an outlet of the turbine 3, enters the working medium condensing pipeline 5 through the exhaust gas working medium input port to be condensed and liquefied, and finally is output through the liquid working medium output port. It can be understood that the working medium heating pipeline can be provided with a plurality of pipelines connected in parallel as required, so that the heat exchange area can be increased, and the circulation efficiency is improved. In addition, the system does not need to pump hot seawater and cold seawater, and directly realizes the circulating operation by taking the working medium as a circulating carrier, so that the working loss required by pumping seawater and the energy loss in the transmission process can be greatly reduced, and the operation investment energy of a power generation system can be greatly reduced.
In the above embodiment, further, the heat storage layer 12 is disposed outside the working medium heating pipeline. Illustratively, the heat storage layer 12 material has the ability to absorb heat and maintain temperature for a long period of time, ensuring that the temperature in the tubes allows the working fluid to vaporize.
As an alternative, in some embodiments, the working medium heating pipe is arranged vertically, and the working medium condensing pipe 5 is arranged horizontally. Specifically, the installation position of the working medium heating pipeline is located in a hot seawater area where the working medium can be heated and gasified, the heat energy of seawater can be fully absorbed in the transportation process, the heating and gasification efficiency and the power generation rate of the working medium are improved, and the gasified working medium can upwards generate power in the turbine 3 along the vertical pipeline. The installation position of the working medium condensation pipeline 5 is located in a cold seawater area where the working medium can be condensed and liquefied, the deeper the position is, the better the position is, and continuous and sufficient cooling in the transportation process can be realized. Further, a first working medium pump 4 and a first one-way valve 9 are arranged between the turbine 3 and the working medium condensation pipeline 5. The first working medium pump 4 is used for rapidly pumping the exhaust working medium into the working medium condensation pipeline 5 for rapid liquefaction; the first one-way valve 9 is used for ensuring the circulation working medium to move according to the circulation path of the system and preventing the working medium from flowing back. Further, a check valve 8 is provided downstream of the outlet of the turbine 3. Specifically, the check valve 8 is used for ensuring that the circulating working medium moves according to a circulating path of the system and preventing the working medium from flowing back.
As an alternative, in some embodiments, a working medium storage tank 6 is further provided downstream of the outlet of the working medium condensation duct 5. In this embodiment, the working medium liquid storage tank 6 is used for collecting the working medium liquefied after completing single cycle power generation in the circulation loop, so as to ensure that the working medium is completely liquefied and keep a lower temperature. Preferably, the working medium liquid storage tank 6 adopts the existing cold-resistant and pressure-resistant liquid storage tank, and the capacity of the working medium liquid storage tank 6 is larger than the volume required after the working medium of the whole circulating system is liquefied. Furthermore, a second one-way valve 10 is arranged between the working medium liquid storage tank 6 and the working medium condensation pipeline 5. Furthermore, a second working medium pump 7 and a third one-way valve 11 are arranged between the working medium storage tank 6 and the working medium heating pipeline. Specifically, the second working medium pump 7 is used for pumping the liquefied working medium with lower temperature in the working medium storage tank 6 into the working medium heating pipeline, and the pumping speed of the working medium storage tank 6 combined with the second working medium pump 7 can control the speed of the whole operation of the circulation system.
As an alternative embodiment, in some embodiments, the form of the working medium heating pipe and the working medium condensing pipe 5 includes any one of a pipe shape, a spiral shape, and a flat plate shape. Because the working medium heating pipeline and the working medium condensing pipeline 5 of the system mainly play a role in realizing the heating gasification and the condensation liquefaction of the working medium through heat exchange, the two structural forms are not limited to the pipeline shape, and can be other forms, such as spiral structures, flat structures and the like; the specific sizes of the working medium heating pipeline and the working medium condensing pipeline 5 can be adjusted according to the temperature condition of seawater and the type of the circulating working medium, and the proper heat exchange structure shape, size and installation water depth are set according to the contents of pressure bearing capacity, heat storage capacity, sealing performance, construction safety and the like. In addition, the working medium type of the system can be a single pure working medium or other non-azeotropic working media.
For better understanding of the present invention, the following will illustrate the working steps of the system by taking two working medium heating pipelines connected in series as an example.
A system building step: the ocean temperature difference energy power generation method comprises the steps of selecting a proper sea area to carry out ocean temperature difference energy power generation, building a working medium circulating type ocean temperature difference energy power generation system structure, setting a proper structure size and installation water depth of each module according to the temperature condition of seawater and the type of a circulating working medium, wherein the power generation system can be divided into a heating power generation module and a condensation circulating module, and the heating power generation module and the condensation circulating module are respectively located in a hot seawater area and a cold seawater area. Referring to fig. 1, the working medium heating pipeline is arranged in the vertical direction, the upper end of the working medium heating pipeline is a gaseous working medium output port, the lower end of the working medium heating pipeline is a liquid working medium input port, the first working medium heating pipeline 1 and the second working medium heating pipeline 2 are connected in series, and the gaseous working medium output port is connected with an inlet of a turbine 3; the outlet of the turbine 3 is connected with the exhaust working medium inlet of the working medium condensation pipeline 5 horizontally arranged through the first working medium pump 4, the liquid working medium outlet of the working medium condensation pipeline 5 is connected with the working medium liquid storage tank 6, and the working medium liquid storage tank 6 is connected with the liquid working medium inlet of the working medium heating pipeline through the second working medium pump 7.
A working medium heating power generation step: the second working medium pump 7 operates according to set power, the liquefied working medium with lower temperature is pumped into the first working medium heating pipeline 1 and the second working medium heating pipeline 2 from the working medium liquid storage tank 6, because the set position of the working medium heating pipeline is in the temperature range in which the working medium can be heated and gasified, the working medium is heated to generate gasification expansion phenomenon and is fully heated along the direction in which the working medium heating pipeline is vertically arranged, and the completely gasified working medium enters the turbine 3 through a gaseous working medium output port to generate power. The exhaust gas working medium generated by the turbine 3 enters the condensation circulation module through the first working medium pump 4, wherein a check valve 8 is arranged on a conveying pipeline of the turbine 3 and the working medium heating pipeline, so that the circulation working medium is ensured to move according to a circulation path of the system, and the working medium backflow phenomenon is prevented.
A working medium condensation liquefaction step: the exhaust gas working medium after the operation of the heating power generation module is quickly pumped into the working medium condensation pipeline 5 through the first working medium pump 4, and the working medium condensation pipeline 5 adopts a horizontal arrangement mode to fully condense the exhaust gas working medium along the direction of a circulation path of the system. Therefore, the working medium condensation pipeline 5 is reasonably designed in pipeline length and position depth according to actual requirements and implementation capacity, and the fact that the working medium at the position of the output port of the working medium condensation pipeline 5 is liquefied is guaranteed. The liquefied working medium is delivered to the working medium liquid storage tank 6, and is further liquefied in the working medium liquid storage tank 6 and kept at a lower temperature. Meanwhile, the pipelines of the first working medium pump 4 and the working medium condensation pipeline 5, the working medium condensation pipeline 5 and the working medium liquid storage tank 6, and the pipelines of the second working medium pump 7 and the first working medium heating pipeline 1 are all provided with one-way valves, so that the circulation working medium is ensured to move according to the circulation path of the system, and the working medium backflow phenomenon is prevented.
After the steps, one-time circulation of the ocean temperature difference energy power generation system is completed, and then the second working medium pump 7 quickly pumps the liquefied working medium in the working medium liquid storage tank 6 into the working medium heating pipeline again according to actual working condition requirements for circulation operation.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention accordingly, and not to limit the protection scope of the present invention accordingly. All equivalent changes or modifications made in accordance with the spirit of the present disclosure are intended to be covered by the scope of the present disclosure.
Claims (9)
1. The utility model provides a working medium circulation formula ocean thermoelectric power generation system which characterized in that includes:
a turbine for driving a generator to generate electricity;
the working medium heating pipelines are arranged in a first temperature sea area in parallel, and are used for heating a liquid circulating working medium flowing through the working medium heating pipelines by utilizing seawater in the first temperature sea area to form a gaseous circulating working medium and conveying the gaseous circulating working medium to the turbine;
and the working medium condensation pipeline is arranged in a second temperature sea area, and seawater in the second temperature sea area is utilized to absorb heat of gaseous circulating working medium flowing through the working medium condensation pipeline after the turbine generates power to form liquid circulating working medium, wherein the seawater temperature in the first temperature sea area is higher than that in the second temperature sea area.
2. The working medium circulation type ocean thermal energy power generation system according to claim 1, wherein a heat storage layer is arranged outside the working medium heating pipeline.
3. The working medium circulation type ocean thermal energy power generation system according to claim 1, wherein the working medium heating pipeline is arranged in a vertical direction, and the working medium condensing pipeline is arranged in a horizontal direction.
4. The working medium circulation type ocean thermal energy power generation system according to claim 1, wherein a first working medium pump and a first check valve are arranged between the turbine and the working medium condensation pipeline.
5. The working medium circulation type ocean thermal energy power generation system according to claim 1, wherein a check valve is further provided downstream of the outlet of the turbine.
6. The working medium circulation type ocean temperature difference energy power generation system according to claim 1, wherein a working medium liquid storage tank is further arranged at the downstream of the outlet of the working medium condensation pipeline.
7. The working medium circulation type ocean thermal energy power generation system according to claim 6, wherein a second one-way valve is further arranged between the working medium liquid storage tank and the working medium condensation pipeline.
8. The working medium circulation type ocean thermal energy power generation system according to claim 6, wherein a second working medium pump and a third one-way valve are further arranged between the working medium storage tank and the working medium heating pipeline.
9. The working medium circulation type ocean thermal energy power generation system according to claim 1, wherein the working medium heating pipeline and the working medium condensing pipeline are in any one of a pipeline shape, a spiral shape and a flat plate shape.
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