CN113154924B - System for utilize hot air heating granule to carry out energy storage - Google Patents
System for utilize hot air heating granule to carry out energy storage Download PDFInfo
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- CN113154924B CN113154924B CN202110575507.XA CN202110575507A CN113154924B CN 113154924 B CN113154924 B CN 113154924B CN 202110575507 A CN202110575507 A CN 202110575507A CN 113154924 B CN113154924 B CN 113154924B
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- heat
- temperature particle
- particle bin
- medium
- heating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
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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
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
- F02G1/00—Hot gas positive-displacement engine plants
- F02G1/04—Hot gas positive-displacement engine plants of closed-cycle type
- F02G1/043—Hot gas positive-displacement engine plants of closed-cycle type the engine being operated by expansion and contraction of a mass of working gas which is heated and cooled in one of a plurality of constantly communicating expansible chambers, e.g. Stirling cycle type engines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B33/00—Steam-generation plants, e.g. comprising steam boilers of different types in mutual association
- F22B33/18—Combinations of steam boilers with other apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H7/00—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release
- F24H7/02—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid
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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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Abstract
The invention discloses a system for heating particles by using hot air to store energy, which comprises a heating chamber, a blower, a heat-preserving air conveying pipeline, a Stirling generator, a rectifier and a storage battery, wherein a heating wire is arranged in the heating chamber, an air outlet of the blower is communicated with one side of the heating chamber through the heat-preserving air conveying pipeline, the other side of the heating chamber is communicated with the Stirling generator through the heat-preserving air conveying pipeline, the heat-preserving air conveying pipeline sequentially passes through a high-temperature particle bin and a medium-temperature particle bin, and the rectifier is configured to rectify the current of the Stirling generator and output the stable current to the storage battery. This utilize system that hot air heating granule carries out energy storage sets up through the cooperation in high temperature granule storehouse, medium temperature granule storehouse, can effectually reduce thermal invalid escape in the in-process of use, absorbs the utilization to energy storage in-process dissipation heat energy, has improved the conversion rate of energy greatly.
Description
Technical Field
The invention relates to the technical field of energy storage systems, in particular to a system for storing energy by heating particles by hot air.
Background
When analyzing the energy storage process, the part of the object or space that is drawn for determining the object of investigation is called the energy storage system. It includes input and output of energy and substances, conversion of energy and storage devices. Energy storage systems often involve multiple energies, multiple devices, multiple substances, multiple processes, are complex energy systems that change over time, and require multiple indicators to describe their performance. The common evaluation indexes include energy storage density, energy storage power, energy storage efficiency, energy storage price, environmental influence and the like, and because all the energy sources required by people have strong timeliness and space property, in order to reasonably utilize the energy sources and improve the utilization rate of the energy, a device is needed to collect and store the temporarily unused surplus energy in a period of time in a certain way, and the surplus energy is extracted and used when the surplus energy is in a peak or is transported to a place where the energy is in shortage for reuse, and the method is the energy storage.
The existing energy storage system has low conversion rate in the process of energy conversion, a large amount of energy is dissipated to the outside through heat dissipation, a large amount of loss is caused, the energy storage mode is single, and flexible adjustment cannot be realized.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides a system for storing energy by heating particles by using hot air, which has the advantages of low loss, capability of adjusting an energy conversion mode and the like, and solves the problems.
(II) technical scheme
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides an utilize hot air heating granule to carry out system of energy storage, includes heating chamber, forced draught blower, heat preservation air delivery pipeline, stirling generator, rectifier and battery, be equipped with the heater strip in the heating chamber the air outlet of forced draught blower is linked together through heat preservation air delivery pipeline and one side of heating chamber, the opposite side of heating chamber is linked together through heat preservation air delivery pipeline and Stirling generator, heat preservation air delivery pipeline passes high temperature granule storehouse and medium temperature granule storehouse in proper order.
Preferably, the high-temperature particle bin and the medium-temperature particle bin are arranged between the heating chamber and the Stirling generator, the high-temperature particle bin is positioned at one side close to the heating chamber, and the medium-temperature particle bin is positioned at one side close to the Stirling generator.
Preferably, the heat-insulating air transmission pipeline between the heating chamber and the Stirling generator passes through the high-temperature particle bin and then passes through the medium-temperature particle bin, and the parts of the heat-insulating air transmission pipeline in the high-temperature particle bin and the medium-temperature particle bin are spiral.
Preferably, the high-temperature particle bin and the medium-temperature particle bin are also internally inserted with heating pipelines, one end of each heating pipeline is provided with a water feeding pump, the other end of each heating pipeline is provided with a steam turbine, and a condenser is arranged between each steam turbine and each water feeding pump.
Preferably, a generator is arranged on one side of the steam turbine, and a cooling water pipe is arranged on the condenser.
Preferably, the parts of the heating pipeline positioned in the high-temperature particle bin and the medium-temperature particle bin are spiral, and do not interfere with the heat-preservation air conveying pipeline.
Preferably, the heating pipeline sequentially passes through the medium-temperature particle bin and the high-temperature particle bin by taking one end connected with the water feeding pump as a starting end.
Preferably, the rectifier is configured to rectify the Stirling generator current and output a stable current to the battery.
Preferably, the high-temperature particle bin, the medium-temperature particle bin, the heating chamber and the heat-preservation air conveying pipeline are all provided with heat-preservation layers.
(III) beneficial effects
Compared with the prior art, the invention provides a system for storing energy by heating particles by hot air, which has the following beneficial effects:
1. this utilize system that hot air heating granule carries out energy storage sets up through the cooperation in high temperature granule storehouse, medium temperature granule storehouse, can effectually reduce thermal invalid escape in the in-process of use, absorbs the utilization to energy storage in-process dissipation heat energy, has improved the conversion rate of energy greatly.
2. This utilize hot air heating granule to carry out system of energy storage sets up through the cooperation of Stirling generator, steam turbine and generator, can realize the nimble switching of three mode energy storage in the in-process of using, can make the regulation according to actual conditions.
Drawings
FIG. 1 is a diagram of a dual storage synchronization system according to the present invention;
FIG. 2 is a schematic diagram of a single Stirling generator energy storage state system according to the present invention;
FIG. 3 is a schematic diagram of a single turbine energy storage state system according to the present invention.
In the figure: 1. a heating chamber; 2. a blower; 3. heat-insulating air-conveying pipeline; 4. a Stirling generator; 5. a rectifier; 6. a storage battery; 7. a heating wire; 8. a high temperature particle bin; 9. a medium-temperature particle bin; 10. a heating pipe; 11. a water feed pump; 12. a steam turbine; 13. a condenser; 14. a generator; 15. and a cooling water pipe.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-3, a system for storing energy by heating particles with hot air includes a heating chamber 1, a blower 2, a heat-preserving air-conveying pipeline 3, a stirling generator 4, a rectifier 5 and a storage battery 6, and is characterized in that: the heating chamber 1 is internally provided with a heating wire 7, an air outlet of the air feeder 2 is communicated with one side of the heating chamber 1 through a heat preservation air delivery pipeline 3, the other side of the heating chamber 1 is communicated with the Stirling generator 4 through the heat preservation air delivery pipeline 3, the rectifier 5 is configured to rectify the current of the Stirling generator 4 and output the stabilized current to the storage battery 6, the heat preservation air delivery pipeline 3 sequentially passes through a high-temperature particle bin 8 and a medium-temperature particle bin 9, the high-temperature particle bin 8, the medium-temperature particle bin 9, the heating chamber 1 and the heat preservation air delivery pipeline 3 are all provided with heat preservation layers, the high-temperature particle bin 8 and the medium-temperature particle bin 9 are arranged between the heating chamber 1 and the Stirling generator 4, the high-temperature particle bin 8 is positioned at one side close to the heating chamber 1, the medium-temperature particle bin 9 is positioned at one side close to the Stirling generator 4, the heat preservation air conveying pipeline 3 between the heating chamber 1 and the Stirling generator 4 firstly passes through the high-temperature particle bin 8 and then passes through the medium-temperature particle bin 9, the parts of the heat preservation air conveying pipeline 3 positioned in the high-temperature particle bin 8 and the medium-temperature particle bin 9 are all spiral, the system for storing energy by utilizing hot air heats particles, the ineffective dissipation of heat can be effectively reduced in the using process through the matching arrangement of the high-temperature particle bin 8 and the medium-temperature particle bin 9, the dissipation heat energy in the energy storage process is absorbed and utilized, the conversion rate of the energy is greatly improved, the heating pipeline 10 is also inserted into the high-temperature particle bin 8 and the medium-temperature particle bin 9, one end of the heating pipeline 10 is provided with a water feeding pump 11, the other end of the heating pipeline 10 is provided with a steam turbine 12, a condenser 13 is arranged between the steam turbine 12 and the water feeding pump 11, one side of the steam turbine 12 is provided with a generator 14, be equipped with condenser 15 on the condenser 13, heating pipeline 10 uses the one end that is connected with feed pump 11 to pass medium temperature granule storehouse 9 and high temperature granule storehouse 8 in proper order as the starting end, heating pipeline 10 is located the part in high temperature granule storehouse 8 and the medium temperature granule storehouse 9 and is the heliciform, and mutually noninterferes with heat preservation air delivery pipeline 3, through the cooperation setting of Stirling generator 4, steam turbine 12 and generator 14, can realize the nimble switching of three kinds of mode energy storage in the in-process of use, can make the regulation according to actual conditions.
Embodiment one:
the Stirling generator 4 and the steam turbine 12 store energy, at the moment, the air blower 2 transmits heat energy into the high-temperature particle bin 8 and the medium-temperature particle bin 9 through the heat-preservation air transmission pipeline 3, particles in the high-temperature particle bin 8 and the medium-temperature particle bin 9 absorb the dissipated heat energy to rise in temperature, hot air of the heat-preservation air transmission pipeline 3 passes through the high-temperature particle bin 8 and the medium-temperature particle bin 9 and then is supplied to the Stirling generator 4 to drive the Stirling generator 4, the Stirling generator 4 converts kinetic energy into electric energy, the electric energy is regulated by the rectifier 5 and then is transmitted to the storage battery 6 to store energy, the hot air is reduced in temperature through the Stirling generator 4 and is transmitted to the air blower 2 again through the heat-preservation air transmission pipeline 3, the air blower 2 circulates the hot air, and the heat of the high-temperature particle bin 8 and the medium-temperature particle bin 9 can insulate the hot air reheated in the heat-preservation air transmission pipeline 3; the water flows in the heating pipeline 10 with the water feeding pump 11, the water is heated and converted into a water vapor state after flowing through the medium-temperature particle bin 9 and the high-temperature particle bin 8, then the water is conveyed to the steam turbine 12, the steam turbine 12 converts energy contained in the water vapor into kinetic energy and conveys the kinetic energy to the generator 14 for energy storage, the water vapor is converted into liquid state after acting from the steam turbine 12 or the water vapor enters the condenser 13 for cooling and condensing, and then the water returns to the water feeding pump 11 for the next circulation.
Embodiment two:
the energy storage is carried out only through the Stirling generator 4, the water supply pump 11 does not work at the moment, the heating pipeline 10 does not circulate, at the moment, the air feeder 2 conveys heat energy into the high-temperature particle bin 8 and the medium-temperature particle bin 9 through the heat preservation air conveying pipeline 3, the absorption temperature of particles in the high-temperature particle bin 8 and the medium-temperature particle bin 9 is increased, hot air of the heat preservation air conveying pipeline 3 passes through the high-temperature particle bin 8 and the medium-temperature particle bin 9 and then is supplied to the Stirling generator 4 to drive the Stirling generator, the Stirling generator 4 converts kinetic energy into electric energy, the electric energy is conveyed to the storage battery 6 to store energy after being regulated by the rectifier 5, the hot air is conveyed to the air feeder 2 again through the heat preservation air conveying pipeline 3 after being reduced in temperature through the Stirling generator 4, the air feeder 2 circulates the hot air, and the heat of the high-temperature particle bin 8 and the medium-temperature particle bin 9 can keep warm the hot air reheated in the heat preservation air conveying pipeline 3, and the heat dissipation is reduced.
Embodiment III:
the energy storage is carried out only through the steam turbine 12, at the moment, the air feeder 2 transmits heat energy into the high-temperature particle bin 8 and the medium-temperature particle bin 9 through the heat-preservation air transmission pipeline 3, the absorption temperature of particles in the high-temperature particle bin 8 and the medium-temperature particle bin 9 for the dissipated heat energy is increased, and the hot air of the heat-preservation air transmission pipeline 3 passes through the high-temperature particle bin 8 and the medium-temperature particle bin 9 and directly enters the air feeder 2 again through the heat-preservation air transmission pipeline 3 to realize the circulation process, so that the heat of the high-temperature particle bin 8 and the medium-temperature particle bin 9 can insulate the reheated hot air in the heat-preservation air transmission pipeline 3; the water flows in the heating pipeline 10 by the water feeding pump 11, is heated and converted into a water vapor state after flowing through the medium-temperature particle bin 9 and the high-temperature particle bin 8, and then is conveyed to the steam turbine 12, the steam turbine 12 converts energy contained in the water vapor into kinetic energy and conveys the kinetic energy to the generator 14 for energy storage, the water vapor is converted into liquid state or the water vapor enters the condenser 13 for cooling and condensing after being subjected to the process of the steam turbine 12, and then the water returns to the water feeding pump 11 for the next circulation.
To sum up, this utilize hot air heating granule to carry out system of energy storage sets up through the cooperation of high temperature granule storehouse 8, medium temperature granule storehouse 9, can effectually reduce the invalid escape of heat at the in-process of using, absorbs the energy storage in-process dissipation heat energy and utilizes, has improved the conversion rate of energy greatly, sets up through the cooperation of Stirling generator 4, steam turbine 12 and generator 14, can realize the nimble switching of three mode energy storage in the in-process of using, can make the regulation according to actual conditions.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides an utilize hot air heating granule to carry out system of energy storage, includes heating chamber (1), forced draught blower (2), heat preservation air delivery pipeline (3), stirling generator (4), rectifier (5) and battery (6), its characterized in that: the heating chamber (1) is internally provided with a heating wire (7), an air outlet of the air feeder (2) is communicated with one side of the heating chamber (1) through a heat-preservation air conveying pipeline (3), the other side of the heating chamber (1) is communicated with a Stirling generator (4) through the heat-preservation air conveying pipeline (3), and the heat-preservation air conveying pipeline (3) sequentially penetrates through a high-temperature particle bin (8) and a medium-temperature particle bin (9);
the high-temperature particle bin (8) and the medium-temperature particle bin (9) are internally inserted with a heating pipeline (10), one end of the heating pipeline (10) is provided with a water supply pump (11), the other end of the heating pipeline (10) is provided with a steam turbine (12), and a condenser (13) is arranged between the steam turbine (12) and the water supply pump (11).
2. A system for storing energy using hot air to heat particles according to claim 1, wherein: the high-temperature particle bin (8) and the medium-temperature particle bin (9) are arranged between the heating chamber (1) and the Stirling generator (4), the high-temperature particle bin (8) is located at one side close to the heating chamber (1), and the medium-temperature particle bin (9) is located at one side close to the Stirling generator (4).
3. A system for storing energy using hot air to heat particles according to claim 1, wherein: the heat preservation air conveying pipeline (3) between the heating chamber (1) and the Stirling generator (4) passes through the high-temperature particle bin (8) and then passes through the medium-temperature particle bin (9), and the parts of the heat preservation air conveying pipeline (3) positioned in the high-temperature particle bin (8) and the medium-temperature particle bin (9) are spiral.
4. A system for storing energy using hot air to heat particles according to claim 1, wherein: one side of the steam turbine (12) is provided with a generator (14), and the condenser (13) is provided with a cooling water pipe (15).
5. A system for storing energy using hot air to heat particles according to claim 1, wherein: the parts of the heating pipeline (10) positioned in the high-temperature particle bin (8) and the medium-temperature particle bin (9) are spiral, and do not interfere with the heat-preservation air conveying pipeline (3).
6. A system for storing energy using hot air to heat particles according to claim 1, wherein: the heating pipeline (10) sequentially passes through the medium-temperature particle bin (9) and the high-temperature particle bin (8) by taking one end connected with the water feeding pump (11) as a starting end.
7. A system for storing energy using hot air to heat particles according to claim 1, wherein: the rectifier (5) is configured to rectify the Stirling generator (4) current and output a stable current to the battery (6).
8. A system for storing energy using hot air to heat particles according to claim 1, wherein: the high-temperature particle bin (8), the medium-temperature particle bin (9), the heating chamber (1) and the heat-preservation air conveying pipeline (3) are all provided with heat-preservation layers.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110575507.XA CN113154924B (en) | 2021-05-26 | 2021-05-26 | System for utilize hot air heating granule to carry out energy storage |
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| CN202110575507.XA CN113154924B (en) | 2021-05-26 | 2021-05-26 | System for utilize hot air heating granule to carry out energy storage |
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