CN110853833A - Device for cooling superconducting cable - Google Patents
Device for cooling superconducting cable Download PDFInfo
- Publication number
- CN110853833A CN110853833A CN201911125276.1A CN201911125276A CN110853833A CN 110853833 A CN110853833 A CN 110853833A CN 201911125276 A CN201911125276 A CN 201911125276A CN 110853833 A CN110853833 A CN 110853833A
- Authority
- CN
- China
- Prior art keywords
- lng
- superconducting
- base station
- power transmission
- cooling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B12/00—Superconductive or hyperconductive conductors, cables, or transmission lines
- H01B12/16—Superconductive or hyperconductive conductors, cables, or transmission lines characterised by cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
- F25D3/10—Devices using other cold materials; Devices using cold-storage bodies using liquefied gases, e.g. liquid air
-
- 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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/60—Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
Abstract
The present invention provides an apparatus for cooling a superconducting cable, comprising: the system comprises a superconducting energy pipeline, a base station cooler, a heat exchanger, an LNG immersed pump and a modulation device, wherein one part of LNG in the superconducting energy pipeline is conveyed into the base station cooler to directly exchange heat with a power transmission terminal, the temperature of the power transmission terminal is maintained below the superconducting critical temperature, the LNG temperature after heat exchange with the power transmission terminal rises to generate a gas-liquid two-phase, the gas-liquid two-phase enters the modulation device to be modulated into liquid, the liquid enters the LNG immersed pump, the LNG immersed pump conveys the LNG to the heat exchanger for heat exchange, the heat exchanger reduces the modulated LNG to be below the superconducting critical temperature, the liquid enters the other power transmission terminal in the base station cooler for heat exchange, the LNG after heat exchange is converged into the superconducting energy pipeline, and the freezing point of the LNG is reduced.
Description
Technical Field
The invention relates to the technical field of superconducting cables, in particular to a device for cooling a superconducting cable.
Background
With the continuous starting of projects such as west-gas-east transportation and west-electricity-east transportation, gas and electricity are simultaneously transported to enter the field of view of superconducting research, and the natural gas liquefaction equipment is utilized to simultaneously meet the requirements of superconducting power transmission, reduce the cost of the superconducting power transmission and improve the stability and the safety of natural gas transportation.
If liquefied natural gas (the liquefaction temperature is 110K) or liquid hydrogen (the liquefaction temperature is 27K) is adopted as a cooling medium in a cooling system required by the superconducting direct current transmission cable, the integration of power transmission and gas transmission can be realized. This is because, on one hand, the critical temperature of the existing high-temperature superconducting materials such as TlBaCuO (Tc-125K) and HgBaCuO (Tc-150K) exceeds the liquefied natural gas temperature, and only from the perspective of the critical temperature, the possibility of developing a power transmission and gas transmission integrated superconducting energy pipeline is provided; on the other hand, the renewable energy has the characteristic of volatility, and natural gas or hydrogen is prepared by utilizing the renewable energy, so that the non-schedulable fluctuating energy can be converted into schedulable energy, and the superconductivity transmission cable cooling device can be used for cooling the superconductivity transmission cable.
LNG is liquid natural gas under normal pressure and low temperature (-162 ℃), and is gasified and used before being conveyed in a pipeline and used as fuel or chemical raw materials, and 830kJ/kg of cold energy is theoretically released when LNG is gasified. The governments and enterprises of all countries pay great attention to the recycling of LNG cold energy. There are a number of ways to utilize LNG cold energy: cold energy power generation, food freezing, seawater desalination, air separation, freezing and crushing, freezing and drying and the like.
The power transmission terminal is used as an important link in the electric energy transmission process, the realization of the superconducting operation of the power transmission terminal is a key link in the whole superconducting power transmission process, however, the power transmission terminal is large in size, large in heat load and difficult to maintain a low-temperature superconducting environment.
Disclosure of Invention
In view of the above, there is a need to provide a device for cooling a superconducting cable, which has a compact volume of a power transmission terminal, a small thermal load, and can maintain a low-temperature superconducting environment, in view of the drawbacks of the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
the present invention provides an apparatus for cooling a superconducting cable, comprising: the system comprises a superconducting energy pipeline, a base station cooler, a heat exchanger, an LNG immersed pump and a modulation device, wherein the base station cooler, the heat exchanger, the LNG immersed pump and the modulation device are arranged at two ends of the superconducting energy pipeline, the superconducting energy pipeline is used for jointly transporting electric power and LNG, the base station cooler is used for storing low-temperature LNG passing through the heat exchanger and a power transmission terminal so as to realize direct cooling of the LNG to the power transmission terminal, the heat exchanger is used for cooling the LNG so as to maintain the temperature of the LNG below a superconducting critical temperature, the LNG immersed pump provides power for circulation of the LNG so as to realize circulation flowing of the LNG in a circulation pipeline, and the modulation device is used for modulating the LNG:
a part of LNG in the superconducting energy pipeline is conveyed into the base station cooler to directly exchange heat with the power transmission terminal so as to maintain the temperature of the power transmission terminal below a superconducting critical temperature, the LNG subjected to heat exchange with the power transmission terminal rises to generate a gas-liquid two-phase liquid, the gas-liquid two-phase liquid enters the modulation device, the modulation device modulates the LNG into a liquid and then enters the LNG immersed pump, the LNG immersed pump conveys the LNG to the heat exchanger for heat exchange, the heat exchanger reduces the modulated LNG to below the superconducting critical temperature and then enters another power transmission terminal in the base station cooler for heat exchange, and the LNG subjected to heat exchange is gathered into the superconducting energy pipeline.
In some preferred embodiments, the number of the base station coolers is four, and the base station coolers are correspondingly distributed on two sides of the superconducting energy pipeline.
In some preferred embodiments, the base station cooler is insulated with insulation wool.
In some preferred embodiments, ethane or propane is included in the modulation device.
In some preferred embodiments, the heat exchanger uses liquid nitrogen as a cooling medium.
The invention adopts the technical scheme that the method has the advantages that:
the present invention provides an apparatus for cooling a superconducting cable, comprising: the device comprises a superconducting energy pipeline, a base station cooler, a heat exchanger, an LNG immersed pump and a modulation device, wherein the base station cooler, the heat exchanger, the LNG immersed pump and the modulation device are arranged at two ends of the superconducting energy pipeline, a part of LNG in the superconducting energy pipeline is conveyed into the base station cooler to directly exchange heat with a power transmission terminal so as to maintain the temperature of the power transmission terminal below a superconducting critical temperature, the LNG temperature after exchanging heat with the power transmission terminal is raised to generate gas-liquid two phases to enter the modulation device, the modulation device modulates the LNG into liquid to enter the LNG immersed pump, the LNG immersed pump conveys the LNG to the heat exchanger for heat exchange, the heat exchanger lowers the modulated LNG to below the superconducting critical temperature to enter another power transmission terminal in the base station cooler for heat exchange, the LNG after heat exchange is converged into the superconducting energy pipeline to reduce the freezing point of the LNG, the temperature of the power transmission terminal is maintained below the superconducting critical temperature, and superconducting operation of the power transmission terminal is realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic view of a structure of an apparatus for cooling a superconducting cable according to an embodiment of the present invention.
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.
Examples
Referring to fig. 1, the present invention provides an apparatus for cooling a superconducting cable, comprising: the functions of the superconducting energy pipeline 110, the base station cooler 120 disposed at both ends of the superconducting energy pipeline 110, the heat exchanger 130, the LNG immersed pump 140, and the modulator 150 are described in detail below, and the connections between the components are described in detail below.
The superconducting energy pipeline 110 is used for jointly transporting power and LNG, the base station cooler 120 is used for storing low-temperature LNG and a power transmission terminal which pass through the heat exchanger 130 so as to realize direct cooling of the power transmission terminal by the LNG, the heat exchanger 130 is used for cooling the LNG so as to maintain the temperature of the LNG below a superconducting critical temperature, the LNG immersed pump 140 provides power for circulation of the LNG so as to realize circulation flow of the LNG in the circulation pipeline, and the modulation device 150 is used for modulating the LNG into liquid.
Specifically, the number of the base station coolers 120 is four, and the four base station coolers are correspondingly distributed on two sides of the superconducting energy pipeline 110, and the superconducting energy pipeline 110 is used for jointly transporting power and LNG. It is understood that the number of the base station coolers 120 is not limited to 4, and other numbers may be used.
Further, the base station cooler 120 is insulated by insulation cotton, so that heat conduction loss and heat convection loss generated by direct contact with air are reduced, and the loss of cooling capacity of LNG in the base station cooler 120 is reduced.
Further, the modulation device 150 comprises ethane or propane, and the LNG component can be adjusted under the action of the ethane or propane to lower the freezing point.
Further, the heat exchanger 130 uses liquid nitrogen as a cooling medium.
The above-described apparatus for cooling a superconducting cable operates as follows:
a portion of the LNG in the superconducting energy pipeline 110 is sent into the base station cooler 120 to directly exchange heat with the transmission terminals, so as to maintain the temperature of the power transmission terminal below the superconducting critical temperature, the temperature of the LNG after heat exchange with the power transmission terminal is raised to generate a gas-liquid two-phase, the gas-liquid two-phase enters the modulation device 150, the preparation device 150 prepares LNG into a liquid, and then the liquid enters the LNG immersed pump 140, the LNG submersion pump 140 delivers LNG to the heat exchanger 130 for heat exchange, the heat exchanger 130 reduces the modulated LNG to below the superconducting critical temperature, and then enters another power transmission terminal in the base station cooler for heat exchange, and the LNG after heat exchange is gathered into the superconducting energy pipeline 110 to reduce the freezing point.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
Of course, the positive electrode material for an apparatus for cooling a superconducting cable of the present invention may be variously changed and modified, and is not limited to the specific structure of the above-described embodiment. In conclusion, the scope of the present invention should include those changes or substitutions and modifications which are obvious to those of ordinary skill in the art.
Claims (5)
1. An apparatus for cooling a superconducting cable, comprising: the system comprises a superconducting energy pipeline, a base station cooler, a heat exchanger, an LNG immersed pump and a modulation device, wherein the base station cooler, the heat exchanger, the LNG immersed pump and the modulation device are arranged at two ends of the superconducting energy pipeline, the superconducting energy pipeline is used for jointly transporting electric power and LNG, the base station cooler is used for storing low-temperature LNG passing through the heat exchanger and a power transmission terminal so as to realize direct cooling of the LNG to the power transmission terminal, the heat exchanger is used for cooling the LNG so as to maintain the temperature of the LNG below a superconducting critical temperature, the LNG immersed pump provides power for circulation of the LNG so as to realize circulation flowing of the LNG in a circulation pipeline, and the modulation device is used for modulating the LNG:
a part of LNG in the superconducting energy pipeline is conveyed into the base station cooler to directly exchange heat with the power transmission terminal so as to maintain the temperature of the power transmission terminal below a superconducting critical temperature, the LNG subjected to heat exchange with the power transmission terminal rises to generate a gas-liquid two-phase liquid, the gas-liquid two-phase liquid enters the modulation device, the modulation device modulates the LNG into a liquid and then enters the LNG immersed pump, the LNG immersed pump conveys the LNG to the heat exchanger for heat exchange, the heat exchanger reduces the modulated LNG to below the superconducting critical temperature and then enters another power transmission terminal in the base station cooler for heat exchange, and the LNG subjected to heat exchange is gathered into the superconducting energy pipeline.
2. The apparatus for cooling a superconducting cable of claim 1, wherein the base station coolers are four and are correspondingly distributed at both sides of the superconducting energy pipe.
3. The apparatus for cooling a superconducting cable of claim 1, wherein the base station cooler is insulated with insulation wool.
4. The apparatus for cooling a superconducting cable of claim 1, wherein the modulating means includes ethane or propane.
5. The apparatus for cooling a superconducting cable of claim 1, wherein the heat exchanger uses liquid nitrogen as a cooling medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911125276.1A CN110853833B (en) | 2019-11-18 | 2019-11-18 | Device for cooling superconducting cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911125276.1A CN110853833B (en) | 2019-11-18 | 2019-11-18 | Device for cooling superconducting cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110853833A true CN110853833A (en) | 2020-02-28 |
| CN110853833B CN110853833B (en) | 2021-02-12 |
Family
ID=69600709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911125276.1A Active CN110853833B (en) | 2019-11-18 | 2019-11-18 | Device for cooling superconducting cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110853833B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113506653A (en) * | 2021-07-02 | 2021-10-15 | 中天集团上海超导技术有限公司 | Compact superconducting cable and cable assembly with same |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2767916Y (en) * | 2005-01-28 | 2006-03-29 | 中国科学院理化技术研究所 | Super-cooling liquefied nitrogen circulation cooling apparatus for cooling high temperature superconducting cable |
| CN102679152A (en) * | 2012-04-20 | 2012-09-19 | 西安交通大学 | United long-range transmission system for liquefied natural gas and high-temperature superconducting electric energy |
| CN103165246A (en) * | 2011-12-19 | 2013-06-19 | 尼克桑斯公司 | Method for cooling an assembly for superconductive cables |
| JP2016025059A (en) * | 2014-07-24 | 2016-02-08 | 住友電気工業株式会社 | Operation method of superconductive cable and cooling system for superconductive cable |
| JP2016186983A (en) * | 2015-03-27 | 2016-10-27 | 大陽日酸株式会社 | Cooling apparatus for superconductive power apparatus and cooling method for superconductive power apparatus |
| KR20190019749A (en) * | 2017-08-18 | 2019-02-27 | 한국전력공사 | Refrigerant evaporization apparatus |
| CN109654376A (en) * | 2019-01-02 | 2019-04-19 | 西南石油大学 | A kind of superconducting energy pipe-line system based on LNG pre-cooling transmission |
-
2019
- 2019-11-18 CN CN201911125276.1A patent/CN110853833B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2767916Y (en) * | 2005-01-28 | 2006-03-29 | 中国科学院理化技术研究所 | Super-cooling liquefied nitrogen circulation cooling apparatus for cooling high temperature superconducting cable |
| CN103165246A (en) * | 2011-12-19 | 2013-06-19 | 尼克桑斯公司 | Method for cooling an assembly for superconductive cables |
| CN102679152A (en) * | 2012-04-20 | 2012-09-19 | 西安交通大学 | United long-range transmission system for liquefied natural gas and high-temperature superconducting electric energy |
| JP2016025059A (en) * | 2014-07-24 | 2016-02-08 | 住友電気工業株式会社 | Operation method of superconductive cable and cooling system for superconductive cable |
| JP2016186983A (en) * | 2015-03-27 | 2016-10-27 | 大陽日酸株式会社 | Cooling apparatus for superconductive power apparatus and cooling method for superconductive power apparatus |
| KR20190019749A (en) * | 2017-08-18 | 2019-02-27 | 한국전력공사 | Refrigerant evaporization apparatus |
| CN109654376A (en) * | 2019-01-02 | 2019-04-19 | 西南石油大学 | A kind of superconducting energy pipe-line system based on LNG pre-cooling transmission |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113506653A (en) * | 2021-07-02 | 2021-10-15 | 中天集团上海超导技术有限公司 | Compact superconducting cable and cable assembly with same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110853833B (en) | 2021-02-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Nguyen et al. | Proton exchange membrane fuel cells heat recovery opportunities for combined heating/cooling and power applications | |
| RU2663785C2 (en) | Pressure relief system | |
| EP3155237B1 (en) | System and method for supplying an energy grid with energy from an intermittent renewable energy source | |
| CN113922371B (en) | Super-long-distance hydrogen-electricity hybrid conveying integrated system based on superconducting technology | |
| Guizzi et al. | Fuel cell-based cogeneration system covering data centers’ energy needs | |
| CN110853833B (en) | Device for cooling superconducting cable | |
| Qiu et al. | General design of±100 kV/1kA energy pipeline for electric power and LNG transportation | |
| CN107300129A (en) | The superconducting energy pipeline of low temp fuel cooling fire-retardant gas protection | |
| CN114508699A (en) | Comprehensive energy supply system for hydrogen production and hydrogenation by ammonia cracking | |
| CN115307062A (en) | Direct-current superconducting liquid hydrogen energy pipeline system with liquid nitrogen cold screen | |
| CN105162158A (en) | Liquid-hydrogen, liquid-oxygen, liquid-nitrogen and superconducting DC cable compound energy transmission system | |
| JP2017502450A (en) | Heat storage system with high temperature battery | |
| CN203039627U (en) | Cold energy temperature difference power generation apparatus | |
| CN217784864U (en) | Direct-current superconducting liquid hydrogen energy pipeline system with liquid nitrogen cold shield | |
| KR102578402B1 (en) | Boil-Off Gas Proceeding System for Liquefied Hydrogen Carrier | |
| Makida et al. | Design of SMES system with liquid hydrogen for emergency purpose | |
| CN102200344B (en) | System and method for realizing cogeneration of heat conduction oil furnace by using semiconductor power generation device | |
| EP3181986A1 (en) | Mitigating lng boiloff by application of peltier cooling | |
| CN210829414U (en) | Electric power energy storage device based on phase change heat storage | |
| JP2005086914A (en) | Electric vehicle provided with superconducting motor | |
| CN107610835B (en) | The superconducting energy pipeline of the cooling CF4 protection of liquefied natural gas | |
| KR102578403B1 (en) | Boil-Off Gas Proceeding System for Liquefied Hydrogen Carrier | |
| CN103017401A (en) | Acoustic power amplifying device capable of adopting cold energy | |
| CN113756885A (en) | Natural gas cold energy combined power generation system | |
| KR20200142150A (en) | Switching Method of Refueling System from Gas phase based to multi-phase based refueling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |