CN111946568A - Ocean temperature difference energy power generation and deep seawater utilization platform suitable for near islands - Google Patents
Ocean temperature difference energy power generation and deep seawater utilization platform suitable for near islands Download PDFInfo
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- CN111946568A CN111946568A CN202010807382.4A CN202010807382A CN111946568A CN 111946568 A CN111946568 A CN 111946568A CN 202010807382 A CN202010807382 A CN 202010807382A CN 111946568 A CN111946568 A CN 111946568A
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- water pipe
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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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- 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
Abstract
The invention relates to the technical field of seawater power generation, in particular to an ocean temperature difference energy power generation and deep seawater utilization platform suitable for near islands, wherein a thermodynamic cycle system is fixed in a floating platform, a deep seawater utilization module is arranged on the upper surface of the floating platform, and the thermodynamic cycle system comprises a working medium pump, an evaporator, a turbine, a generator and a condenser which are sequentially connected through pipelines; the cold water system includes cold water pipe and cold water pump, the one end of cold water pipe is deep sea water inlet, the other end is first delivery port, install the cold water pump in the pipeline of cold water pipe, the cold water pipe passes in the condenser, set up the bleeder on the cold water pipe, the module is utilized to the deep sea water of bleeder intercommunication, the warm water system includes warm water pipe and warm water pump, the one end of warm water pipe is top layer sea water inlet, the other end is the second delivery port, the warm water pipe passes in the evaporimeter, this application utilizes the difference in temperature of deep sea water and top layer sea water to generate electricity, utilize deep sea water to utilize the module to utilize deep sea water.
Description
Technical Field
The invention relates to the technical field of seawater power generation, in particular to an ocean temperature difference energy power generation and deep seawater utilization platform suitable for near islands.
Background
In the technical field of temperature difference energy power generation, generally in a sea area with the water depth of more than 800 meters, the temperature difference between deep seawater and surface seawater can reach the minimum value of 20 ℃ for power generation, and China only has good temperature difference energy development conditions in the deep and far sea areas in the south, so that an ocean temperature difference energy power generation platform technology is urgently needed. However, in sea areas with water depths greater than 800 m, the cost of the anchoring system for platform positioning is high, and the platform economy is directly affected.
In addition, the deep seawater is seawater with the water depth of less than 200, can not be irradiated by sunlight, is not influenced by the atmosphere, has the characteristics of low temperature stability, sterile cleaning, rich components, easy absorption by human bodies and the like, and brings great economic benefits if being processed into health, beauty and health care products.
In conclusion, the ocean thermal energy power generation and deep seawater utilization platform suitable for the near sea island is designed, is arranged in the near sea island region of the deep sea and has two functions of thermal energy power generation and deep seawater utilization. The method provides a new idea for ocean temperature difference energy development and deep seawater resource utilization in China.
Disclosure of Invention
The applicant aims at the defects in the prior art and provides an ocean thermal energy power generation and deep seawater utilization platform suitable for a near sea island, and the platform has two functions of thermal energy power generation and deep seawater utilization.
The technical scheme adopted by the invention is as follows: a platform for ocean temperature difference energy power generation and deep seawater utilization suitable for near islands comprises a floating platform, a thermal circulation system, a cold water system, a warm water system and a deep seawater utilization module, wherein the floating platform floats on the sea surface, the thermal circulation system is fixed in the floating platform, the deep seawater utilization module is placed on the upper surface of the floating platform, and the thermal circulation system comprises a working medium pump, an evaporator, a turbine, a generator and a condenser which are sequentially connected through pipelines and connected into a circulation loop; the cold water system comprises a cold water pipe and a cold water pump, wherein one end of the cold water pipe is a deep seawater inlet, the other end of the cold water pipe is a first water outlet, the cold water pump is installed in a pipeline of the cold water pipe, the cold water pipe penetrates through the condenser, a branch pipe is arranged on the cold water pipe, the branch pipe is communicated with the deep seawater utilization module, a valve is arranged on the branch pipe, and the cold water pump, the condenser and the branch pipe are sequentially arranged according to the water flow direction of the cold water pipe; the warm water system comprises a warm water pipe and a warm water pump, one end of the warm water pipe is a surface seawater inlet, the other end of the warm water pipe is a second water outlet, the warm water pump is installed in a pipeline of the warm water pipe, the warm water pipe penetrates through the evaporator, and the warm water pump and the evaporator are sequentially arranged according to the water flow direction of the warm water pipe.
As a further improvement of the above technical solution:
the floating platform comprises an upper floating body, a plurality of stand columns and a lower floating body, wherein the stand columns are vertically fixed between the upper floating body and the lower floating body, the upper floating body floats on the sea surface, the lower floating body is immersed below the sea surface, the deep seawater utilization module is placed on the upper surface of the upper floating body, and the thermodynamic cycle system, the cold water pump and the warm water pump are all installed in the lower floating body.
The water inlet end of the cold water pipe is positioned at the position with the water depth of more than or equal to 600 meters, and the water outlet end of the cold water pipe is positioned at the position with the water depth of more than or equal to 30 meters.
The water inlet end of the warm water pipe is positioned at the position with the water depth of less than or equal to 10 meters, and the water outlet end of the warm water pipe is positioned at the position with the water depth of more than or equal to 30 meters.
The invention has the following beneficial effects: the deep sea water utilization module is arranged in a shallow water area of the offshore island, the platform cost can be reduced, and a new idea can be provided for ocean temperature difference energy development and deep sea water resource utilization in China.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic diagram of the thermodynamic cycle system of the present invention.
Wherein: 10. a floating platform; 11. an upper float; 12. a column; 13. a lower float; 21. a working medium pump; 22. an evaporator; 23. a turbine; 24. a generator; 25. a condenser; 31. a cold water pipe; 32. a cold water pump; 41. a warm water pipe; 42. a warm water pump; 50. a deep seawater utilization module; 60. a branch pipe; 70. and (4) a valve.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1-2, the ocean thermal energy power generation and deep seawater utilization platform suitable for near islands of the present embodiment includes a floating platform 10, a thermal circulation system, a cold water system, a warm water system and a deep seawater utilization module 50, wherein the floating platform 10 floats on the sea surface, the thermal circulation system is fixed in the floating platform 10, the deep seawater utilization module 50 is placed on the upper surface of the floating platform 10, the thermal circulation system includes a working medium pump 21, an evaporator 22, a turbine 23, a generator 24 and a condenser 25 which are connected in sequence through a pipeline and are connected to form a circulation loop; the cold water system comprises a cold water pipe 31 and a cold water pump 32, one end of the cold water pipe 31 is a deep seawater inlet, the other end of the cold water pipe 31 is a first water outlet, the cold water pump 32 is installed in a pipeline of the cold water pipe 31, the cold water pipe 31 penetrates through the condenser 25, a branch pipe 60 is arranged on the cold water pipe 31, the branch pipe 60 is communicated with the deep seawater utilization module 50, a valve 70 is arranged on the branch pipe 60, and the cold water pump 32, the condenser 25 and the branch pipe 60 are sequentially arranged according to the water flow direction of the cold water pipe 31; the warm water system comprises a warm water pipe 41 and a warm water pump 42, one end of the warm water pipe 41 is a surface seawater inlet, the other end of the warm water pipe 41 is a second water outlet, the warm water pump 42 is installed in a pipeline of the warm water pipe 41, the warm water pipe 41 penetrates through the evaporator 22, and the warm water pump 42 and the evaporator 22 are sequentially arranged according to the water flow direction of the warm water pipe 41.
The floating platform 10 comprises an upper floating body 11, a plurality of upright columns 12 and a lower floating body 13, wherein the upright columns 12 are vertically fixed between the upper floating body 11 and the lower floating body 13, the upper floating body 11 floats on the sea surface, the lower floating body 13 is immersed below the sea surface, a deep seawater utilization module 50 is placed on the upper surface of the upper floating body 11, and a thermodynamic cycle system, a cold water pump 32 and a warm water pump 42 are all installed in the lower floating body 13.
The water inlet end of the cold water pipe 31 is positioned at the position with the water depth of more than or equal to 600 meters, and the water outlet end of the cold water pipe 31 is positioned at the position with the water depth of more than or equal to 30 meters.
The water inlet end of the warm water pipe 41 is positioned at the water depth of less than or equal to 10 meters, and the water outlet end of the warm water pipe 41 is positioned at the water depth of more than or equal to 30 meters.
The working principle of this application does:
when the platform is used, the platform is placed at a position with a not too deep water depth (the water depth is approximately less than 200 meters) of the offshore island, the cold water pump 32 is started, the cold water pump 32 pumps deep seawater with the water depth of less than 600 meters into the cold water pipe 31 (the flow direction of the deep seawater in the cold water pipe 31 is shown by an arrow), wherein the cold water pipe 31 adopts a slant water taking mode (namely the cold water pipe 31 inclines outwards to take deep cold seawater), cold seawater with the water depth of more than 600 meters can be taken, so that the economic benefit of the whole platform is great, as the platform is parked in a shallow area with the water depth, the shallow anchoring system has better economic benefit compared with the deep anchoring system, the temperature of the deep seawater is lower, the deep seawater in the cold water pipe 31 passes through the condenser 25, the deep seawater and liquid working medium in the condenser 25 perform heat exchange, the temperature of the deep seawater is increased, and the temperature of the working medium in the condenser 25 is reduced, working medium circulates in a thermodynamic cycle system, a part of deep seawater with increased temperature is discharged into seawater from a first water outlet of a cold water pipe 31, the deep seawater with increased temperature can also flow into a deep seawater utilization module 50 from a branch pipe 60 for reuse, the deep seawater utilization module 50 can be a deep seawater concentration device, a deep seawater separation device and the like, the two devices can be used together to process seawater into high-calcium magnesium mineralized liquid, low-sulfur mineralized liquid and the like, and deep seawater resources are effectively utilized;
starting the warm water pump 42, pumping the surface layer seawater with the depth of more than 10 m into the warm water pipe 41 by the warm water pump 42 (the flow direction of the surface layer seawater in the warm water pipe 41 is shown by an arrow), wherein the temperature of the surface layer seawater is higher, the surface layer seawater in the warm water pipe 41 passes through the evaporator 22, the surface layer seawater with the higher temperature meets the working medium with the lower temperature in the evaporator 22, so that the liquid working medium is gasified, the pressure of the gasified working medium is increased, the turbine 23 rotates and drives the generator 24 to generate electricity, the temperature difference energy of the seawater is effectively utilized to generate electricity, and the temperature of the surface layer seawater in the warm water pipe 41 is lowered and is discharged into the seawater again through the second water outlet of the warm water;
in summary, the application has two functions of temperature difference energy power generation and deep seawater utilization, is arranged in a shallow water area of an offshore island, can reduce the cost of a platform, and can provide a new idea for ocean temperature difference energy development and deep seawater resource utilization in China.
The above description is intended to be illustrative and not restrictive, and the scope of the invention is defined by the appended claims, which may be modified in any manner within the scope of the invention.
Claims (4)
1. The utility model provides an ocean thermoelectric energy electricity generation and deep sea water utilization platform suitable for nearly island which characterized in that: the sea-surface seawater desalination device comprises a floating platform (10), a thermal circulation system, a cold water system, a warm water system and a deep seawater utilization module (50), wherein the floating platform (10) floats on the sea surface, the thermal circulation system is fixed in the floating platform (10), the deep seawater utilization module (50) is placed on the upper surface of the floating platform (10), and the thermal circulation system comprises a working medium pump (21), an evaporator (22), a turbine (23), a generator (24) and a condenser (25) which are sequentially connected through pipelines and connected into a circulation loop; the cold water system comprises a cold water pipe (31) and a cold water pump (32), one end of the cold water pipe (31) is a deep seawater inlet, the other end of the cold water pipe (31) is a first water outlet, the cold water pump (32) is installed in a pipeline of the cold water pipe (31), the cold water pipe (31) penetrates through the condenser (25), a branch pipe (60) is arranged on the cold water pipe (31), the branch pipe (60) is communicated with the deep seawater utilization module (50), a valve (70) is arranged on the branch pipe (60), and the cold water pump (32), the condenser (25) and the branch pipe (60) are sequentially arranged according to the water flow direction of the cold water pipe (31); the warm water system comprises a warm water pipe (41) and a warm water pump (42), one end of the warm water pipe (41) is a surface seawater inlet, the other end of the warm water pipe (41) is a second water outlet, the warm water pump (42) is installed in a pipeline of the warm water pipe (41), the warm water pipe (41) penetrates through the evaporator (22), and the warm water pump (42) and the evaporator (22) are sequentially arranged according to the water flow direction of the warm water pipe (41).
2. The ocean thermal energy generation and deep seawater utilization platform suitable for use on near islands as claimed in claim 1, wherein: the floating platform (10) comprises an upper floating body (11), a plurality of upright columns (12) and a lower floating body (13), wherein the upright columns (12) are vertically fixed between the upper floating body (11) and the lower floating body (13), the upper floating body (11) floats on the sea surface, the lower floating body (13) is immersed below the sea surface, a deep seawater utilization module (50) is placed on the upper surface of the upper floating body (11), and a thermodynamic cycle system, a cold water pump (32) and a warm water pump (42) are all installed in the lower floating body (13).
3. The ocean thermal energy generation and deep seawater utilization platform suitable for use on near islands as claimed in claim 1, wherein: the water inlet end of the cold water pipe (31) is positioned at the position with the water depth of more than or equal to 600 meters, and the water outlet end of the cold water pipe (31) is positioned at the position with the water depth of more than or equal to 30 meters.
4. The ocean thermal energy generation and deep seawater utilization platform suitable for use on near islands as claimed in claim 1, wherein: the water inlet end of the warm water pipe (41) is positioned at the position with the water depth of less than or equal to 10 meters, and the water outlet end of the warm water pipe (41) is positioned at the position with the water depth of more than or equal to 30 meters.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010807382.4A CN111946568A (en) | 2020-08-12 | 2020-08-12 | Ocean temperature difference energy power generation and deep seawater utilization platform suitable for near islands |
| PCT/CN2021/089502 WO2022033074A1 (en) | 2020-08-12 | 2021-04-25 | Ocean temperature difference energy power generation and deep seawater utilization platform suitable for offshore islands |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010807382.4A CN111946568A (en) | 2020-08-12 | 2020-08-12 | Ocean temperature difference energy power generation and deep seawater utilization platform suitable for near islands |
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| CN111946568A true CN111946568A (en) | 2020-11-17 |
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| CN202010807382.4A Pending CN111946568A (en) | 2020-08-12 | 2020-08-12 | Ocean temperature difference energy power generation and deep seawater utilization platform suitable for near islands |
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| WO (1) | WO2022033074A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022033074A1 (en) * | 2020-08-12 | 2022-02-17 | 中国船舶科学研究中心 | Ocean temperature difference energy power generation and deep seawater utilization platform suitable for offshore islands |
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| EP2395241A2 (en) * | 2010-05-03 | 2011-12-14 | Nagan Srinivasan | Offshore floating platform with ocean thermal energy conversion system |
| US20130300127A1 (en) * | 2012-05-10 | 2013-11-14 | Arthur Robert DiNicolantonio | Geothermal energy recovery from abandoned oil wells |
| CN103727000A (en) * | 2014-01-06 | 2014-04-16 | 李定忠 | Temperature differential power generating method and deep well water temperature differential generator achieving same |
| CN107201995A (en) * | 2011-08-15 | 2017-09-26 | 阿贝尔基金会 | Ocean thermal energy conversion power plant cold water pipe is connected |
| CN109889102A (en) * | 2019-04-19 | 2019-06-14 | 上海海洋大学 | A kind of wave drive-type ocean thermal energy conversion comprehensive platform |
| CN209586604U (en) * | 2018-11-16 | 2019-11-05 | 江苏海上龙源风力发电有限公司 | A kind of offshore boosting station platform configuring mixing circulation ocean temperature difference power generating system |
| CN110748466A (en) * | 2019-10-17 | 2020-02-04 | 中海石油(中国)有限公司 | Turbine output power self-adaptive control system and method for ocean temperature difference energy system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111946568A (en) * | 2020-08-12 | 2020-11-17 | 中国船舶科学研究中心 | Ocean temperature difference energy power generation and deep seawater utilization platform suitable for near islands |
-
2020
- 2020-08-12 CN CN202010807382.4A patent/CN111946568A/en active Pending
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2021
- 2021-04-25 WO PCT/CN2021/089502 patent/WO2022033074A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2395241A2 (en) * | 2010-05-03 | 2011-12-14 | Nagan Srinivasan | Offshore floating platform with ocean thermal energy conversion system |
| CN107201995A (en) * | 2011-08-15 | 2017-09-26 | 阿贝尔基金会 | Ocean thermal energy conversion power plant cold water pipe is connected |
| US20130300127A1 (en) * | 2012-05-10 | 2013-11-14 | Arthur Robert DiNicolantonio | Geothermal energy recovery from abandoned oil wells |
| CN103727000A (en) * | 2014-01-06 | 2014-04-16 | 李定忠 | Temperature differential power generating method and deep well water temperature differential generator achieving same |
| CN209586604U (en) * | 2018-11-16 | 2019-11-05 | 江苏海上龙源风力发电有限公司 | A kind of offshore boosting station platform configuring mixing circulation ocean temperature difference power generating system |
| CN109889102A (en) * | 2019-04-19 | 2019-06-14 | 上海海洋大学 | A kind of wave drive-type ocean thermal energy conversion comprehensive platform |
| CN110748466A (en) * | 2019-10-17 | 2020-02-04 | 中海石油(中国)有限公司 | Turbine output power self-adaptive control system and method for ocean temperature difference energy system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022033074A1 (en) * | 2020-08-12 | 2022-02-17 | 中国船舶科学研究中心 | Ocean temperature difference energy power generation and deep seawater utilization platform suitable for offshore islands |
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| WO2022033074A1 (en) | 2022-02-17 |
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Application publication date: 20201117 |
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