CN112302892A - Method and device for improving sea temperature difference power generation - Google Patents
Method and device for improving sea temperature difference power generation Download PDFInfo
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- CN112302892A CN112302892A CN202011325468.XA CN202011325468A CN112302892A CN 112302892 A CN112302892 A CN 112302892A CN 202011325468 A CN202011325468 A CN 202011325468A CN 112302892 A CN112302892 A CN 112302892A
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- 238000010248 power generation Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000013535 sea water Substances 0.000 claims abstract description 68
- 239000002918 waste heat Substances 0.000 claims abstract description 16
- 239000002344 surface layer Substances 0.000 claims abstract description 15
- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- 238000009835 boiling Methods 0.000 claims abstract description 6
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 claims description 28
- 239000007788 liquid Substances 0.000 claims description 20
- 239000007789 gas Substances 0.000 claims description 16
- 238000001816 cooling Methods 0.000 claims description 15
- 239000001294 propane Substances 0.000 claims description 14
- 230000005611 electricity Effects 0.000 claims description 8
- 238000005086 pumping Methods 0.000 claims description 6
- 239000010410 layer Substances 0.000 claims description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 3
- 239000000284 extract Substances 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000004134 energy conservation Methods 0.000 abstract description 3
- 230000001737 promoting effect Effects 0.000 abstract description 3
- 230000009467 reduction Effects 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
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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
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
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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
- F01K17/00—Using steam or condensate extracted or exhausted from steam engine plant
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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
- F01K25/08—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 special vapours
- F01K25/10—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 special vapours the vapours being cold, e.g. ammonia, carbon dioxide, ether
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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
- F01K25/08—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 special vapours
- F01K25/10—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 special vapours the vapours being cold, e.g. ammonia, carbon dioxide, ether
- F01K25/106—Ammonia
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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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- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
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- Biodiversity & Conservation Biology (AREA)
- General Life Sciences & Earth Sciences (AREA)
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- Sustainable Development (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The invention provides a method and a device for improving sea temperature difference power generation, wherein hot sea water on the surface layer of sea is used for heating a working medium with a low boiling point in a heat exchanger, so that the working medium is evaporated and sent to a turbine to drive the turbine to rotate; compared with the original sea temperature difference power generation, the method and the device for improving the sea temperature difference power generation utilize the waste heat of IDC to heat the sea water, and the conversion of the chemical energy of the heat exchanger is improved greatly; the device can not only utilize the sea bottom seawater to cool the IDC module, but also fully utilize the waste heat of the IDC module to enable sea thermoelectric generation to be improved in multiples, and has huge contribution to the IDC module and the ocean energy generation, thereby further promoting the commercialization mode of the sea bottom IDC module and the sea thermoelectric generation, being applicable to all sea thermoelectric generation circulation systems in the world at present, having important practical value, being beneficial to the requirements of national energy conservation and emission reduction and green and environment-friendly energy, and being easy to use and popularize on a large scale.
Description
Technical Field
The invention relates to the field of sea temperature difference energy utilization, in particular to a method and a device for improving sea temperature difference power generation.
Background
The basically constant temperature difference of 20-25 ℃ exists between the ocean surface layer of the tropical zone and the depths of hundreds of kilometers, so that a huge and stable cold and heat source is provided for power generation. The basic principle of improving the sea temperature difference power generation (OTEC) is to heat and vaporize a low-boiling-point working medium by using high-temperature sea water on the surface of the sea, or to vaporize the sea water by reducing the pressure so as to drive a steam turbine to generate power. Meanwhile, low-temperature seawater (4-6 ℃) extracted from the seabed is used for condensing exhaust gas after work is done, so that the exhaust gas is changed into liquid again. At present, the theoretical estimated storage capacity of the worldwide ocean thermal energy is 100 hundred million kilowatts, so OTEC is confirmed by the united nations new energy and renewable energy conference in 1981 to be the most important of all ocean energy conversion systems.
The south sand and west sand islands in China are far away from the continents, the power networking is difficult, however, the sun sunshine is strong, and the potential of temperature difference energy utilization is the most potential. According to preliminary calculation, the installed capacity of the south sea temperature difference energy resource which can be developed and utilized in the technology is up to 13.21-14.76 billion kilowatts, if the south sea temperature difference energy resource can be utilized according to local conditions, the south sea temperature difference energy resource not only has positive influence on the economic development of islands, but also can provide convenient electric energy for offshore engineering operation, oil production, sea defense and even coastal cities, and therefore, the development of the sea temperature difference energy power generation technology has important significance. At present, three main ways for improving the sea temperature difference power generation are available: namely a closed cycle system, an open cycle system and a hybrid cycle system combining the advantages of the two. These three circulation systems are the closest technically to commercial applications in a closed circulation scheme.
As shown in fig. 1, a flow chart of a closed cycle lift sea temperature difference power generation system in the prior art is shown, heat of surface layer high-temperature sea water a from an ocean surface layer is firstly transferred to low boiling point working media such as propane in an evaporator 14 to be evaporated, the working media are evaporated to be steam to drive a steam turbine in a steam turbine 6 to do work, the working media discharged by the steam turbine enter a condenser 8 again, the working media are cooled by deep layer low-temperature sea water B several hundred meters deep and then become liquid again, and then the liquid working media are conveyed into the evaporator 14 by a working medium pump 2 to realize recycling. The specific process is as follows: firstly, a working medium pump 2 pumps low-boiling point working media such as liquid propane in a liquid storage barrel 1 to enter an evaporator 14, high-temperature seawater A on the surface layer is pumped into the evaporator 14 through a high-temperature seawater pump 3, the high-temperature seawater A on the surface layer exchanges heat with the liquid propane to enable the liquid propane to be vaporized in the evaporator 14 to become propane steam, and the high-temperature seawater A on the surface layer after heat exchange is discharged into the ocean C. The propane steam enters the steam turbine 6 to drive the steam turbine to do work, so that mechanical energy is generated, and the generator 7 converts the mechanical energy into electric energy. Then, propane steam discharged by the steam turbine enters a condenser 8, the condenser 8 condenses the propane steam into liquid propane through deep low-temperature seawater B pumped by a low-temperature seawater pump 15, the liquid propane is stored in a liquid storage barrel 1, and the deep low-temperature seawater B exchanges heat with the propane steam and is discharged into the ocean C.
The biggest technical problem of the current sea temperature difference power generation lies in that the heat exchange problem and the heat energy are difficult to promote, so that the sea temperature difference power generation is stopped in an experimental stage until now and is not applied to a commercial mode.
Disclosure of Invention
In order to achieve the purpose, the technical scheme adopted by the invention is that the invention provides a method for improving sea temperature difference power generation, wherein hot sea water on the surface layer of sea is used for heating a low-boiling-point working medium in a heat exchanger to evaporate the working medium, the working medium is sent to a turbine to push the turbine to rotate, the turbine drives a power generator to do work and generate power, working medium exhaust gas discharged by the turbine is condensed into liquid state by using cold sea water on the deep layer of the sea extracted by a condenser, the working medium exhaust gas enters the heat exchanger again by using a booster pump, is heated by using the hot sea water and is sent to the turbine to evaporate the hot sea water, the turbine is pushed to rotate the power generator to do work and; a plurality of IDC modules are arranged on the sea floor, electric energy generated by the generator is provided for the IDC modules, waste heat generated by the operation of the IDC modules heats the heat exchanger, the temperature in the heat exchanger is increased, the temperature difference between the waste heat and the temperature difference in the condenser after the deep sea water is extracted is increased, and therefore the generated energy pushes the turbine to do larger work to promote the generator to generate electricity.
Preferably, the working medium with low boiling point is one of liquid ammonia, freon and propane.
Preferably, the IDC module is provided with a first IDC module located at forty meters below the sea floor, and a plurality of IDC modules are equidistantly arranged at the upper end of the first IDC module.
Preferably, the IDC module heats the heat exchanger in the following manner: waste heat generated by the IDC module is cooled by seawater in a cooling pipeline in the IDC module, the temperature of the seawater in the cooling pipe is increased, and the heat exchanger extracts the seawater in the cooling pipeline of the IDC module to heat the heat exchanger.
A lifting sea thermoelectric generation device, comprising:
a turbine and generator for generating electricity;
the heat exchanger is provided with a working medium inlet, a working medium outlet and a surface seawater inlet and outlet, wherein the working medium outlet is connected with the inlet of the turbine and used for heating the working medium through the surface seawater to evaporate the working medium;
the condenser is provided with a working medium inlet, a working medium outlet, a deep seawater inlet and a deep seawater outlet, wherein the working medium inlet is connected with an exhaust port of the turbine, and the working medium outlet is connected with the heat exchanger and used for condensing working medium exhaust gas in the turbine into liquid state and returning the liquid state to the heat exchanger; the high-lift seawater pump is connected with a seawater inlet of the condenser and is used for pumping deep seawater into the condenser and cooling the working medium exhaust gas;
the booster pump is arranged between the condenser and the heat exchanger, the inlet of the booster pump is connected with the condenser, and the outlet of the booster pump is connected with the heat exchanger and used for pumping the working medium in the condenser into the heat exchanger; the system comprises a seabed, a first IDC module and a plurality of IDC modules, wherein the IDC modules are arranged in the seabed, a first IDC module is arranged at forty meters of the seabed, and the IDC modules are arranged upwards at equal intervals from the first IDC module; the IDC module is electrically connected with the generator.
Preferably, the turbine comprises one of a steam turbine, a flue gas turbine and an expander.
Has the advantages that: compared with the prior art, the method and the device for improving the sea temperature difference power generation have the advantages that compared with the original sea temperature difference power generation, the waste heat of IDC is utilized to heat the sea water, so that the chemical energy conversion of the heat exchanger is improved greatly; the device can not only utilize the sea bottom seawater to cool the IDC module, but also fully utilize the waste heat of the IDC module to enable sea thermoelectric generation to be improved in multiples, and has huge contribution to the IDC module and the ocean energy generation, thereby further promoting the commercialization mode of the sea bottom IDC module and the sea thermoelectric generation, being applicable to all sea thermoelectric generation circulation systems in the world at present, having important practical value, being beneficial to the requirements of national energy conservation and emission reduction and green and environment-friendly energy, and being easy to use and popularize on a large scale.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.
FIG. 1 is a flow chart of a conventional closed lift sea thermoelectric generation system of the prior art;
FIG. 2 is a flow chart of a system for generating electricity by elevating the temperature difference between the sea according to the present invention;
the reference numbers in the figures indicate: the system comprises a heat exchanger 1, a condenser 2, a turbine 3, a generator 4, a booster pump 5 and an IDC module 6.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Examples
In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments of the present disclosure.
The embodiment can be known from the attached drawings of the specification, the scheme provides a method for improving the sea temperature difference power generation, wherein hot seawater on the surface layer of the sea is used for heating a low-boiling-point working medium in a heat exchanger 1 to evaporate the working medium, the working medium is sent into a turbine 3 to push the turbine 3 to rotate, the turbine 3 drives a power generator 4 to do work and generate power, working medium exhaust gas discharged by the turbine 3 is condensed into liquid state by using cold seawater in the deep layer of the sea extracted by a condenser 2, the working medium exhaust gas enters the heat exchanger 1 again by using a booster pump 5, then is heated by using the hot seawater and is sent into the turbine 3 to evaporate the working medium, and the turbine 3 is pushed to rotate the power generator 4 to do work and generate power; a plurality of IDC modules 6 are arranged on the sea floor, electric energy generated by the generator 4 is provided for the IDC modules 6, waste heat generated by the operation of the IDC modules 6 heats the heat exchanger 1, the temperature in the heat exchanger 1 rises, the temperature difference between the waste heat and the temperature difference in the condenser 2 after the deep sea water is extracted is increased, and therefore the generated energy pushes the turbine 3 to do larger work to promote the generator 4 to generate electricity.
Specifically, the working medium with a low boiling point is one of liquid ammonia, freon and propane.
Specifically, the IDC module 6 is provided with a first IDC module 6 at forty meters below the sea floor, and a plurality of IDC modules 6 are equidistantly arranged at the upper end of the first IDC module 6.
Specifically, the IDC module 6 heats the heat exchanger in the following manner: waste heat generated by the IDC module 6 is cooled by seawater in a cooling pipeline in the IDC module, the temperature of the seawater in the cooling pipeline is increased, and the heat exchanger 1 extracts the seawater in the cooling pipeline of the IDC module 6 to heat the heat exchanger 1.
A lifting sea thermoelectric generation device, comprising: a turbine 3 and a generator 4 for generating electricity; the heat exchanger 1 is provided with a working medium inlet, a working medium outlet and a surface layer seawater inlet and outlet, wherein the working medium outlet is connected with an inlet of the turbine 3 and used for heating the working medium through the surface layer seawater to evaporate the working medium; the condenser 2 is provided with a working medium inlet, a working medium outlet and a deep seawater inlet and a deep seawater outlet, the working medium inlet is connected with an exhaust port of the turbine 3, and the working medium outlet is connected with the heat exchanger 1 and used for condensing the working medium exhaust gas in the turbine 3 into liquid state and returning the liquid state to the heat exchanger 1; the high-lift seawater pump is connected with a seawater inlet of the condenser 2 and is used for pumping deep seawater into the condenser 2 and cooling the working medium exhaust gas; the booster pump 5 is arranged between the condenser 2 and the heat exchanger 1, the inlet of the booster pump is connected with the condenser 2, and the outlet of the booster pump is connected with the heat exchanger 1 and is used for pumping the working medium in the condenser 2 into the heat exchanger 1; the system also comprises an IDC module 6 arranged in the seabed, wherein a first IDC module 6 is arranged at forty meters of the seabed, and a plurality of IDC modules 6 are arranged upwards at equal intervals from the first IDC module 6; the IDC module 6 is electrically connected to the generator 4.
Specifically, the turbine 3 includes one of a steam turbine, a flue gas turbine, and an expander.
The working principle is as follows: hot seawater on the surface layer of the ocean is pumped into a heat exchanger 1 to heat a working medium of the heat exchanger 1, the working medium is evaporated and then is sent into a turbine 3 to push the turbine 3 to rotate, meanwhile, the turbine 3 drives a generator 4 to do work and generate power, working medium exhaust gas discharged by the turbine 3 is condensed into liquid state by cold seawater which is pumped by a condenser 2 and has the temperature of about 5 ℃ in the deep layer of the ocean, the cold seawater enters the heat exchanger 1 again by a booster pump 5 and is then heated by the hot seawater and sent into the turbine 3 to be evaporated, the turbine 3 is pushed to rotate the generator 4 to do work and generate power, and the cycle is carried out to continuously generate power; the electric energy generated by the generator 4 is provided for the IDC module 6, waste heat generated by the operation of the IDC module 6 is cooled by seawater in a cooling pipeline of the IDC module 6, the temperature of the seawater in the cooling pipeline rises, the rising water temperature in the cooling pipeline extracted by the input end of the heat exchanger 1 heats the heat exchanger, the temperature in the heat exchanger rises, and the temperature difference between the rising water temperature and the temperature in a condenser of the extracted deep sea bottom sea cold water is larger, so that the generated energy pushes the turbine 3 to do larger work, and the generator 4 is promoted to generate electricity;
compared with the original sea temperature difference power generation, the method and the device for improving the sea temperature difference power generation utilize the waste heat of the IDC module 6 to heat the sea water, so that the conversion of the chemical energy of the heat exchanger 1 is improved greatly; the device can not only utilize the sea bottom seawater to cool the IDC module 6, but also fully utilize the waste heat of the IDC module 6 to enable sea thermoelectric generation to be improved in multiples, and has huge contribution to the IDC module 6 and the ocean energy generation, thereby further promoting the commercialization mode of the sea bottom IDC module 6 and the sea thermoelectric generation, being applicable to all sea thermoelectric generation circulating systems in the world at present, having important practical value, being beneficial to the requirements of energy conservation and emission reduction and green and environment-friendly energy of China, and being easy to use and popularize on a large scale.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.
Claims (5)
1. A method for improving sea temperature difference power generation is characterized in that: the method comprises the following steps of heating a low-boiling-point working medium in a heat exchanger (1) by using hot seawater on the surface layer of the ocean to evaporate the working medium, sending the working medium into a turbine (3) to push the turbine (3) to rotate, driving a generator (4) to do work to generate power at the same time, condensing the working medium exhaust gas discharged by the turbine (3) into liquid state by using cold seawater in the deep layer of the ocean extracted by a condenser (2), entering the heat exchanger (1) again by using a booster pump (5), heating by using the hot seawater, sending the working medium exhaust gas into the turbine (3) to evaporate the working medium exhaust gas, pushing the turbine (3) to rotate the generator (4) to do work to generate power, circulating the way and; a plurality of IDC modules (6) are arranged on the sea floor, electric energy generated by the generator (4) is provided for the IDC modules (6), waste heat generated by the operation of the IDC modules (6) heats the heat exchanger (1), the temperature in the heat exchanger (1) rises, the temperature difference between the waste heat and the temperature difference in the condenser (2) after deep sea water is extracted is increased, and therefore the generated energy pushes the turbine (3) to do larger work to promote the generator (4) to generate electricity.
2. The method for improving power generation by sea temperature difference according to claim 1, wherein the working medium with low boiling point is one of liquid ammonia, freon and propane.
3. The method for improving power generation by sea temperature difference according to claim 1, characterized in that the IDC module (6) is provided with a first IDC module (6) located forty meters below the sea floor, and a plurality of IDC modules (6) are equidistantly arranged on the upper end of the first IDC module (6).
4. The method for lifting sea thermoelectric power generation according to claim 1, wherein the IDC module (6) heats the heat exchanger in a way that: waste heat generated by the IDC module (6) is cooled by seawater in a cooling pipeline in the IDC module, the temperature of the seawater in the cooling pipeline is increased, and the heat exchanger (1) extracts the seawater in the cooling pipeline of the IDC module (6) to heat the heat exchanger (1).
5. A lifting sea thermoelectric generation device, comprising: a turbine (3) and a generator (4) for generating electricity; the heat exchanger (1) is provided with a working medium inlet, a working medium outlet and a surface layer seawater inlet and outlet, wherein the working medium outlet is connected with an inlet of the turbine (3) and used for heating the working medium through the surface layer seawater to evaporate the working medium; the condenser (2) is provided with a working medium inlet, a working medium outlet and a deep seawater inlet and a deep seawater outlet, the working medium inlet is connected with an exhaust port of the turbine (3), and the working medium outlet is connected with the heat exchanger (1) and used for condensing working medium exhaust gas in the turbine (3) into liquid state and returning the liquid state to the heat exchanger (1); the high-lift seawater pump is connected with a seawater inlet of the condenser (2) and is used for pumping deep seawater into the condenser (2) and cooling working medium exhaust gas; the booster pump (5) is arranged between the condenser (2) and the heat exchanger (1), the inlet of the booster pump is connected with the condenser (2), and the outlet of the booster pump is connected with the heat exchanger (1) and is used for pumping the working medium in the condenser (2) into the heat exchanger (1); the method is characterized in that: the device is characterized by also comprising IDC modules (6) arranged in the seabed, wherein a first IDC module (6) is arranged at forty meters of the seabed, and a plurality of IDC modules (6) are arranged upwards at equal intervals from the first IDC module (6); the IDC module (6) is electrically connected with the generator (4).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011325468.XA CN112302892A (en) | 2020-11-24 | 2020-11-24 | Method and device for improving sea temperature difference power generation |
| PCT/CN2021/075221 WO2022110547A1 (en) | 2020-11-24 | 2021-02-04 | Method and device for improving ocean thermal energy conversion |
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| CN202011325468.XA CN112302892A (en) | 2020-11-24 | 2020-11-24 | Method and device for improving sea temperature difference power generation |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113982873A (en) * | 2021-10-18 | 2022-01-28 | 中海石油(中国)有限公司 | Drilling platform temperature difference energy power generation device and method |
| CN113982872A (en) * | 2021-10-18 | 2022-01-28 | 中海石油(中国)有限公司 | Drilling platform temperature difference energy power generation system and method based on wellbore drilling fluid circulation |
| CN114033643A (en) * | 2021-11-19 | 2022-02-11 | 中海石油(中国)有限公司 | Seabed thermoelectric energy power generation and seabed rig integrated device |
| WO2022110547A1 (en) * | 2020-11-24 | 2022-06-02 | 房盼盼 | Method and device for improving ocean thermal energy conversion |
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| CN113982873A (en) * | 2021-10-18 | 2022-01-28 | 中海石油(中国)有限公司 | Drilling platform temperature difference energy power generation device and method |
| CN113982872A (en) * | 2021-10-18 | 2022-01-28 | 中海石油(中国)有限公司 | Drilling platform temperature difference energy power generation system and method based on wellbore drilling fluid circulation |
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