CN114562434A - Thermal circulation system utilizing ocean temperature difference energy - Google Patents
Thermal circulation system utilizing ocean temperature difference energy Download PDFInfo
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- CN114562434A CN114562434A CN202210066727.4A CN202210066727A CN114562434A CN 114562434 A CN114562434 A CN 114562434A CN 202210066727 A CN202210066727 A CN 202210066727A CN 114562434 A CN114562434 A CN 114562434A
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- turbine
- evaporator
- gas
- condenser
- liquid separator
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
- F01K25/06—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using mixtures of different fluids
- F01K25/065—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using mixtures of different fluids with an absorption fluid remaining at least partly in the liquid state, e.g. water for ammonia
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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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K11/00—Plants characterised by the engines being structurally combined with boilers or condensers
- F01K11/02—Plants characterised by the engines being structurally combined with boilers or condensers the engines being turbines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K13/00—General layout or general methods of operation of complete plants
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K13/00—General layout or general methods of operation of complete plants
- F01K13/006—Auxiliaries or details not otherwise provided for
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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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Oceanography (AREA)
- Sustainable Development (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The invention relates to a thermodynamic cycle system utilizing ocean temperature difference energy, which is characterized by comprising an evaporator, a gas-liquid separator, a preheater, a first turbine, a second turbine, an absorber and a condenser, wherein the evaporator is connected with the gas-liquid separator; the evaporator is positioned on the surface layer of the ocean, and the condenser is positioned at a set distance below the evaporator; the evaporator is connected with the gas-liquid separator, the gas-liquid separator is respectively connected with the first turbine and a preheater through pipelines, the preheater is respectively connected with the second turbine, the evaporator and the condenser through pipelines, the input of the absorber is respectively connected with the first turbine and the second turbine through pipelines, and the output of the absorber is connected with the condenser through a pipeline; the gas-phase working medium steam separated by the gas-liquid separator enters the first turbine to do work, and the liquid separated by the gas-liquid separator enters the second turbine to do work after passing through the preheater. The invention improves the energy utilization rate.
Description
Technical Field
The invention relates to the technical field of thermodynamic cycle, in particular to a thermodynamic cycle system utilizing ocean temperature difference energy.
Background
The essence of ocean thermal energy conversion is to convert solar energy stored in seawater into electrical energy, and the ocean covers about 71% of the earth's area and is a huge solar receiver. The ocean is a huge renewable energy carrier on the earth, and the temperature difference energy is the renewable energy with the largest reserve in a plurality of ocean energies. At present, the thermodynamic cycle efficiency of power generation by using ocean temperature difference energy needs to be further improved.
Disclosure of Invention
The invention aims to provide a thermodynamic cycle system utilizing ocean temperature difference energy, and the thermodynamic cycle system improves the energy utilization rate.
In order to achieve the purpose, the invention provides the following scheme:
a thermodynamic cycle system utilizing ocean thermal energy comprises an evaporator, a gas-liquid separator, a preheater, a first turbine, a second turbine, an absorber and a condenser;
the evaporator is positioned on the surface layer of the ocean, and the condenser is positioned at a set distance below the evaporator; the evaporator is connected with the gas-liquid separator, the gas-liquid separator is respectively connected with the first turbine and the preheater through pipelines, the preheater is respectively connected with the second turbine, the evaporator and the condenser through pipelines, the input of the absorber is respectively connected with the first turbine and the second turbine through pipelines, and the output of the absorber is connected with the condenser through a pipeline; the gas-phase working medium steam separated by the gas-liquid separator enters the first turbine to do work, and the liquid separated by the gas-liquid separator enters the second turbine to do work after passing through the preheater.
Optionally, the working medium in the pipeline is a non-azeotropic working medium.
Optionally, the system further comprises a first water pump, the first water pump is connected with the evaporator, and the first water pump is used for providing heat energy for the evaporator.
Optionally, the condenser further comprises a second water pump, and the second water pump is connected with the condenser.
Optionally, the system further comprises a working medium pump, wherein the input end of the working medium pump is connected with the condenser, and the output end of the working medium pump is connected with the preheater.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
the evaporator is positioned on the surface layer of the ocean, the condenser is positioned at a set distance below the evaporator, the liquid discharged from the evaporator to the condenser generates flow velocity by utilizing the pressure difference between the evaporator and the condenser, so that kinetic energy is generated, the generated kinetic energy utilizes the second turbine to generate electricity, the kinetic energy generated by the liquid discharged from the evaporator to the condenser is utilized, and the energy utilization rate is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, 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 invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a schematic view of a thermodynamic cycle system utilizing ocean thermal energy according to the present invention;
description of the symbols: the method comprises the following steps of A-heating part, B-thermodynamic cycle part, C-cooling part, 1-first water pump, 2-evaporator, 3-gas-liquid separator, 4-first turbine, 5-second turbine, 6-absorber, 7-preheater, 8-working medium pump, 9-condenser and 10-second water pump.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the 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 invention, 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 invention.
The invention aims to provide a thermodynamic cycle system utilizing ocean temperature difference energy, and the thermodynamic cycle system improves the energy utilization rate.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Fig. 1 is a schematic structural view of a thermodynamic cycle system utilizing ocean thermal energy according to the present invention, and as shown in fig. 1, the thermodynamic cycle system utilizing ocean thermal energy includes a heating part a, a thermodynamic cycle part B, and a cooling part C. The heating part A comprises a first water pump 1 (warm sea water pump) and an evaporator 2; the thermodynamic cycle part B comprises a gas-liquid separator 3, a preheater 7, a first turbine 4, a second turbine 5 (dilute solution turbine), an absorber 6 and a working medium pump 8; the cooling section C includes a condenser 9 and a second water pump 10 (cold sea water pump).
The evaporator 2 is positioned on the surface layer of the ocean, the temperature of the seawater on the surface layer of the ocean is about 26 ℃, the condenser 9 is positioned at a set distance below the evaporator 2, and the temperature of the seawater used by the condenser 9 is about 5 ℃; the evaporator 2 is connected with the gas-liquid separator 3, the gas-liquid separator 3 is respectively connected with the first turbine 4 and the preheater 7 through pipelines, the preheater 7 is respectively connected with the second turbine 5, the evaporator 2 and the condenser 9 through pipelines, the input of the absorber 6 is respectively connected with the first turbine 4 and the second turbine 5 through pipelines, and the output of the absorber 6 is connected with the condenser 9 through a pipeline; and gas-phase working medium steam separated by the gas-liquid separator 3 enters the first turbine 4 to do work, and liquid separated by the gas-liquid separator 3 enters the second turbine 5 to do work after passing through a preheater 7.
The working medium in the pipeline is a non-azeotropic working medium.
The working medium in the pipeline is ammonia water mixed working medium as the specific embodiment.
The first water pump 1 is connected with the evaporator 2, and the first water pump 1 is used for providing heat energy for the evaporator 2.
The second water pump 10 is connected to the condenser 9.
The input end of the working medium pump 8 is connected with the condenser 9, and the output end of the working medium pump 8 is connected with the preheater 7.
The working principle of the invention is as follows: the working medium is heated into a gas-liquid two-phase mixed solution by surface layer hot seawater in the evaporator 2, the gas-liquid two-phase mixed working medium is separated into a gas phase and a liquid phase in the gas-liquid separator 3, gas phase working medium steam enters the first turbine 4 to do work, the liquid phase working medium solution enters the second turbine 5 to do work after passing through the preheater 7, the working medium respectively passes through the first turbine 4 and the second turbine 5 to enter the absorber 6, and then the working medium output from the absorber 6 is condensed by cold seawater in the condenser 9 and then returns to the evaporator 2 through the working medium pump 8.
According to the invention, the evaporator 2 is positioned on the surface layer of the ocean, the condenser 9 is positioned at a set distance below the evaporator 2, the pressure difference between the evaporator 2 and the condenser 9 is utilized to enable the liquid discharged from the evaporator 2 to the condenser 9 to generate flow velocity, so that kinetic energy is generated, the generated kinetic energy is utilized by the second turbine 5 to generate electricity, and therefore, the kinetic energy generated by the liquid discharged from the evaporator 2 to the condenser 9 is also utilized, and the energy utilization rate of the thermodynamic cycle system is improved.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (5)
1. A thermodynamic cycle system utilizing ocean thermal energy is characterized by comprising an evaporator, a gas-liquid separator, a preheater, a first turbine, a second turbine, an absorber and a condenser;
the evaporator is positioned on the surface layer of the ocean, and the condenser is positioned at a set distance below the evaporator; the evaporator is connected with the gas-liquid separator, the gas-liquid separator is respectively connected with the first turbine and a preheater through pipelines, the preheater is respectively connected with the second turbine, the evaporator and the condenser through pipelines, the input of the absorber is respectively connected with the first turbine and the second turbine through pipelines, and the output of the absorber is connected with the condenser through a pipeline; the gas-phase working medium steam separated by the gas-liquid separator enters the first turbine to do work, and the liquid separated by the gas-liquid separator enters the second turbine to do work after passing through the preheater.
2. The thermodynamic cycle system utilizing ocean thermal energy according to claim 1, wherein the working fluid in the pipeline is an ammonia water mixed working fluid.
3. The thermodynamic cycle system utilizing ocean thermal energy as claimed in claim 1, further comprising a first water pump connected to the evaporator, the first water pump being configured to provide thermal energy to the evaporator.
4. The thermodynamic cycle system utilizing ocean thermal energy as claimed in claim 1, further comprising a second water pump connected to the condenser.
5. The thermodynamic cycle system utilizing ocean thermal energy as claimed in claim 1, further comprising a working fluid pump, wherein an input end of the working fluid pump is connected to the condenser, and an output end of the working fluid pump is connected to the preheater.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210066727.4A CN114562434A (en) | 2022-01-20 | 2022-01-20 | Thermal circulation system utilizing ocean temperature difference energy |
| NL2031162A NL2031162A (en) | 2022-01-20 | 2022-03-04 | Thermodynamic circulation system utilizing ocean temperature-difference energy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210066727.4A CN114562434A (en) | 2022-01-20 | 2022-01-20 | Thermal circulation system utilizing ocean temperature difference energy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114562434A true CN114562434A (en) | 2022-05-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210066727.4A Pending CN114562434A (en) | 2022-01-20 | 2022-01-20 | Thermal circulation system utilizing ocean temperature difference energy |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114562434A (en) |
| NL (1) | NL2031162A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115342554A (en) * | 2022-07-19 | 2022-11-15 | 广州海洋地质调查局 | Working medium spiral double-circulation type heat exchanger structure, evaporator and condenser |
-
2022
- 2022-01-20 CN CN202210066727.4A patent/CN114562434A/en active Pending
- 2022-03-04 NL NL2031162A patent/NL2031162A/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115342554A (en) * | 2022-07-19 | 2022-11-15 | 广州海洋地质调查局 | Working medium spiral double-circulation type heat exchanger structure, evaporator and condenser |
| CN115342554B (en) * | 2022-07-19 | 2024-04-30 | 广州海洋地质调查局 | Working medium spiral double-circulation type heat exchanger structure, evaporator and condenser |
Also Published As
| Publication number | Publication date |
|---|---|
| NL2031162A (en) | 2023-08-01 |
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