CN115031322B - Multifunctional energy storage system and air conditioner for solar spectrum frequency division and cascade utilization - Google Patents
Multifunctional energy storage system and air conditioner for solar spectrum frequency division and cascade utilization Download PDFInfo
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- CN115031322B CN115031322B CN202210972373.XA CN202210972373A CN115031322B CN 115031322 B CN115031322 B CN 115031322B CN 202210972373 A CN202210972373 A CN 202210972373A CN 115031322 B CN115031322 B CN 115031322B
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- 238000004146 energy storage Methods 0.000 title claims abstract description 65
- 238000001228 spectrum Methods 0.000 title claims abstract description 31
- 238000010248 power generation Methods 0.000 claims abstract description 41
- 239000007788 liquid Substances 0.000 claims description 156
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 121
- 230000001105 regulatory effect Effects 0.000 claims description 33
- 238000000034 method Methods 0.000 claims description 22
- 230000017525 heat dissipation Effects 0.000 claims description 17
- 238000005338 heat storage Methods 0.000 claims description 15
- 238000010438 heat treatment Methods 0.000 claims description 6
- 230000008929 regeneration Effects 0.000 claims description 4
- 238000011069 regeneration method Methods 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims description 3
- 230000003595 spectral effect Effects 0.000 claims 4
- 230000000694 effects Effects 0.000 description 12
- 238000006243 chemical reaction Methods 0.000 description 10
- 238000005057 refrigeration Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/001—Compression cycle type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0046—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/40—Thermal components
- H02S40/44—Means to utilise heat energy, e.g. hybrid systems producing warm water and electricity at the same time
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0046—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground
- F24F2005/0064—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground using solar energy
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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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
Abstract
The invention provides a multifunctional energy storage system and an air conditioner for solar spectrum frequency division cascade utilization, wherein the multifunctional energy storage system for solar spectrum frequency division cascade utilization comprises: the system comprises a photovoltaic power generation and heat collection subsystem, an energy storage subsystem and an energy release subsystem, wherein the photovoltaic power generation and heat collection subsystem, the energy storage subsystem and the energy release subsystem are connected with one another; the energy storage subsystem includes: a compressor; the high-pressure gas storage device is connected with the compressor; the second evaporator is connected with the compressor; the low-pressure gas storage device is connected with the second evaporator; the energy release subsystem comprises: the first heat exchanger is connected with the high-pressure gas storage device; the high-pressure expansion unit is connected with the first heat exchanger; the second heat exchanger is connected with the high-pressure expansion unit; the ejector is connected with the second heat exchanger; the third heat exchanger is connected with the ejector and the low-pressure gas storage device; the first evaporator is connected with the ejector and the low-pressure gas storage device. The embodiment of the invention can store high-pressure gas by utilizing surplus electric quantity to realize energy storage, and can realize simultaneous supply of electric energy, heat energy and cold energy.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a multifunctional energy storage system for solar spectrum frequency division cascade utilization and an air conditioner.
Background
Based on the current energy and environmental situation, the strategy of 'carbon neutralization' and 'carbon peak-reaching' in China is responded, and the large-scale development and utilization of renewable energy sources become feasible strategies. By the end of 2021, solar power generation installed capacities reached up to 3.1 hundred million kilowatts, but solar utilization had the disadvantages of intermittency and volatility and presented a significant challenge to the safety and stability of the power system, and solar energy was not utilized efficiently as a clean energy source. Therefore, the problem of unstable solar energy utilization is solved, and the energy utilization rate is continuously improved.
The patent application No. CN202210000359.3, the invention name of which is a photovoltaic energy supply air conditioning system, discloses a photovoltaic power generation and heat collection subsystem and a refrigeration subsystem by utilizing solar energy in frequency division; the solar energy frequency division utilization photovoltaic power generation and heat collection subsystem can utilize solar energy to generate electric energy and heat collection liquid, the refrigeration subsystem comprises an injection refrigeration circulation system, the injection refrigeration circulation system comprises a generator, and at least part of the heat collection liquid exchanges heat with working medium liquid in the generator. Therefore, the solar energy frequency division utilizes the photovoltaic power generation and heat collection subsystem to generate electric energy and heat energy, and the refrigeration subsystem generates cold energy, thereby realizing combined supply of cold, heat and electricity; the refrigeration system selects an injection refrigeration cycle system which can be driven by low-grade heat, and has higher energy utilization rate.
The energy storage technology is one of effective ways for overcoming the defects of intermittency and fluctuation of solar energy utilization. The solar photovoltaic cogeneration device and the energy storage system are organically combined, so that the defect that solar energy is influenced by weather conditions can be overcome, the stability of the system is improved, the application range of the system is expanded, and the solar photovoltaic cogeneration device and the energy storage system can be applied to the fields of supplying power, heat and cold for users, supplying domestic hot water and the like.
Therefore, how to organically combine the solar photovoltaic cogeneration device with the energy storage system, realize the simultaneous supply of electric energy, heat energy and cold energy (combined supply of heat, electricity and cold), reduce the phenomenon of 'light abandonment', store the surplus electric quantity of solar power generation during the non-electricity consumption peak, and improve the solar energy utilization rate is a technical problem to be solved urgently.
Disclosure of Invention
Therefore, the embodiment of the invention provides the multifunctional energy storage system for solar spectrum frequency division cascade utilization, which can not only utilize surplus electric quantity to store high-pressure gas to realize the purpose of energy storage, but also realize the simultaneous supply of electric energy, heat energy and cold energy.
In order to solve the above problems, the present invention provides a multifunctional energy storage system for solar spectrum frequency division cascade utilization, comprising: the system comprises a photovoltaic power generation and heat collection subsystem, an energy storage subsystem and an energy release subsystem, wherein the photovoltaic power generation and heat collection subsystem, the energy storage subsystem and the energy release subsystem are connected with one another; the energy storage subsystem includes: a compressor; the high-pressure gas storage device is connected with the compressor; the second evaporator is connected with the compressor; the low-pressure gas storage device is connected with the second evaporator; the low-pressure gas in the low-pressure gas storage device flows through the second evaporator to output cold energy to the outside, is compressed into high-pressure gas by the compressor, and is stored in the high-pressure gas storage device; the energy release subsystem comprises: the first heat exchanger is connected with the high-pressure gas storage device; the high-pressure expansion unit is connected with the first heat exchanger; the second heat exchanger is connected with the high-pressure expansion unit; the ejector is connected with the second heat exchanger; the third heat exchanger is connected with the ejector and the low-pressure gas storage device; the first evaporator is connected with the ejector and the low-pressure gas storage device; the first flow regulating valve is arranged between the first evaporator and the low-pressure gas storage device; the high-pressure gas is released from the high-pressure gas storage device, flows through the first heat exchanger to exchange heat with heat collection liquid, forms high-temperature and high-pressure gas, enters the high-pressure expansion unit to do work and output electric energy, and the second heat exchanger recovers heat in exhaust gas which does work; the ejector uses working exhaust as working fluid to eject low-pressure gas from the low-pressure gas storage device, the opening degree of the ejector is controlled by the first flow regulating valve, cold energy is output outwards after flowing through the first evaporator, the cold energy and the cold energy are mixed into medium-temperature and medium-pressure gas, the medium-temperature and medium-pressure gas enters the third heat exchanger to exchange heat with outside air to output heat, and finally the medium-temperature and medium-pressure gas enters the low-pressure gas storage device to be stored.
Compared with the prior art, the technical scheme has the following technical effects: outputting electric energy by arranging a high-voltage expansion unit; the first evaporator is arranged to output cold energy to the outside; outputting heat by arranging a third heat exchanger; thereby realizing the simultaneous supply of electric energy, heat energy and cold energy.
In one example of the present invention, the photovoltaic power generation and heat collection subsystem comprises: the solar heat collector is internally provided with a heat collecting pipe, and the heat collecting pipe is connected with the first heat exchanger; the solar energy frequency divider is connected with the solar heat collector; the low-frequency sunlight generated by frequency division of the solar frequency divider is reflected to the solar heat collector, heat collecting liquid flows through the heat collecting tube, and the heat collecting liquid can absorb heat gathered by the solar heat collector so as to exchange heat with the first heat exchanger.
Compared with the prior art, the technical effect achieved by adopting the technical scheme is as follows: the solar heat collector, the cold water tank, the solar frequency divider and the first heat exchanger are connected, low-frequency sunlight generated by frequency division of the solar frequency divider is reflected to reach the solar heat collector, heat collecting liquid flows through the heat collecting tube, the heat collecting liquid can absorb heat gathered by the solar heat collector, and heat exchange is realized through the first heat exchanger, so that heat supply to high-pressure gas in an energy storage process is realized through solar energy.
In one example of the present invention, the photovoltaic power generation and heat collection subsystem further comprises: the photovoltaic assembly is connected with the solar frequency divider; the energy storage assembly is connected with the photovoltaic assembly; the high-frequency sunlight generated by the solar frequency divider is subjected to frequency division and reaches the photovoltaic module to generate electric energy, and the electric energy generated by the photovoltaic module can be stored in the energy storage module.
Compared with the prior art, the technical scheme has the following technical effects: through set up photovoltaic module and energy storage component on solar energy collection, the high frequency sunlight that the frequency division of solar energy frequency divider produced reaches photovoltaic module and produces the electric energy, and the electric energy that photovoltaic module produced can be stored in energy storage component to the realization gives the building power supply.
In one example of the present invention, the photovoltaic power generation and heat collection subsystem further comprises: the hot water supply device is connected with the heat collecting pipe and/or the heat exchanger pipe of the first heat exchanger; wherein a part of the liquid in the heat collecting pipe flowing out of the heat collecting pipe can be used for supplying hot water to the hot water supply device; and/or; the liquid in the heat collecting tube flowing through the latter part of the heat exchanger tube can be used to supply hot water to the hot water supply device.
Compared with the prior art, the technical scheme has the following technical effects: through set up hot water supply device on photovoltaic power generation and thermal-arrest subsystem, partly can be used for supplying hot water to hot water supply device after the liquid in the thermal-arrest pipe flows out the thermal-arrest pipe, and another part liquid flows back to the cold water tank after carrying out the heat exchange with the working medium liquid in the first heat exchanger to the realization gives the building hot water.
In one example of the present invention, the photovoltaic power generation and heat collection subsystem further comprises: the cooler is in contact with the photovoltaic assembly, and a heat dissipation channel is arranged in the cooler; the heat dissipation channel is communicated with the heat collection tube, and heat collection liquid is arranged in the heat dissipation channel.
Compared with the prior art, the technical scheme has the following technical effects: the cooler connected with the photovoltaic module is arranged, and the heat dissipation channel is arranged in the cooler, so that the temperature of the photovoltaic module can be absorbed while the photovoltaic module is cooled by the cooler; on the other hand, when sunlight irradiates the photovoltaic module, the photoelectric conversion rate cannot be 100%, so that part of sunlight is finally converted into heat energy to cause the temperature of the photovoltaic module to rise, and researches show that the generating efficiency of the photovoltaic module is reduced along with the temperature rise of the photovoltaic module.
In one example of the present invention, the method further comprises: and the water replenishing assembly is connected with the heat dissipation channel.
Compared with the prior art, the technical scheme has the following technical effects: the hot water supply device is used for a long time, so that the heat collection liquid in the photovoltaic power generation and heat collection subsystem is reduced, and the water replenishing component is arranged in the heat dissipation channel, so that on one hand, the temperature of the cooler arranged at the photovoltaic component is higher, and the water temperature can be gradually increased in the cooler without circulating in the photovoltaic power generation and heat collection subsystem all the time; on the other hand, the photovoltaic module can be cooled by supplementing water.
In one example of the present invention, the photovoltaic power generation and heat collection subsystem further comprises: the cold water tank is connected with the cooler; the hot water tank is connected with the heat collecting pipe and the first heat exchanger; the heat exchange equipment is connected with the hot water tank, the cold water tank and the heat collecting pipe; the first liquid pump is arranged between the heat exchange equipment and the cold water tank; the heat collecting liquid flowing out of the cold water tank flows into the heat collecting pipe after flowing through the heat exchange equipment, and the heat collecting liquid in the heat collecting pipe flows into the hot water tank after absorbing heat by the heat collecting pipe; part of heat collecting liquid of the hot water tank flows into the first heat exchanger to exchange heat with working medium liquid in the first heat exchanger, and the heat collecting liquid after heat exchange flows through the heat exchange equipment firstly and then flows to the first liquid pump to be pressurized; and the heat collecting liquid flowing out of the cold water tank and the heat collecting liquid flowing out of the first heat exchanger exchange heat in the heat exchange equipment.
Compared with the prior art, the technical scheme has the following technical effects: by arranging the hot water tank and the heat exchange equipment, the heat collecting liquid flowing out of the cold water tank flows into the heat collecting pipes after flowing through the heat exchange equipment, and the heat collecting liquid in the heat collecting pipes flows into the hot water tank after absorbing heat by the heat collecting pipes; on one hand, part of heat collecting liquid of the hot water tank flows into the first heat exchanger to exchange heat with working medium liquid in the first heat exchanger, and the heat collecting liquid after heat exchange flows through the heat exchange equipment firstly and then flows to the liquid pump to be pressurized; the heat collecting liquid flowing out of the cold water tank and the heat collecting liquid flowing out of the first heat exchanger exchange heat in the heat exchange equipment, so that the energy conversion rate of the heat pump system is improved; on the other hand, the thermal-arrest liquid that flows out the evaporimeter still has higher temperature, directly flows into the liquid pump and can lead to the fact certain damage to the liquid pump, influences the life of liquid pump, through the thermal-arrest liquid that will flow out first heat exchanger earlier through the heat transfer equipment heat transfer to reduce the temperature of liquid pump entry department thermal-arrest liquid, play the effect of protection liquid pump to a certain extent, prolong the life of liquid pump.
In one example of the present invention, the method further comprises: the second flow regulating valve is arranged between the solar heat collector and the first heat exchanger; the third flow regulating valve is arranged between the hot water supply device and the solar heat collector; the second flow regulating valve is used for regulating the flow of heat collecting liquid for driving the first heat exchanger; and the third flow regulating valve is used for regulating the flow of heat collecting liquid for supplying hot water.
Compared with the prior art, the technical scheme has the following technical effects: the second flow regulating valve is arranged for regulating the flow of the heat collecting liquid for driving the first heat exchanger, so that the flow of the heat collecting liquid in the photovoltaic power generation and heat collecting subsystem is convenient to control; the third flow regulating valve is used for regulating the flow of the heat collecting liquid for supplying hot water, so that the total amount of the heat collecting liquid in the photovoltaic power generation and heat collecting subsystem is convenient to control.
In one example of the present invention, the method further comprises: the heat regeneration unit is connected with the energy release subsystem; the heat recovery unit includes: the fourth heat exchanger is arranged between the high-pressure gas storage device and the first heat exchanger; the fifth heat exchanger is arranged between the compressor and the high-pressure gas storage device; the heat accumulator is arranged between the fourth heat exchanger and the fifth heat exchanger; the cold water tank is arranged between the fourth heat exchanger and the fifth heat exchanger; a second liquid pump disposed between the heat accumulator and the fourth heat exchanger; the third liquid pump is arranged between the cold water tank and the fifth heat exchanger; the high-pressure gas flowing out of the high-pressure gas storage device is heated by using the heat absorbed in the compressed gas process stored in the heat accumulator in the energy release process, and the high-pressure gas and the heat storage liquid exchange heat in the fourth heat exchanger, so that the working temperature is initially increased; the second liquid pump and the third liquid pump are used for adjusting the flow of heat storage liquid for absorbing heat in the process of compressing gas and the flow of heat storage liquid for heating high-pressure gas.
Compared with the prior art, the technical scheme has the following technical effects: the cold water tank and the fifth heat exchanger are arranged for heat exchange, so that cold water in the cold water tank can exchange heat with working medium liquid with residual heat and then is conveyed to the heat accumulator, heat is absorbed by compressed gas stored in the heat accumulator in the process of heating high-pressure gas flowing out of the high-pressure gas storage device, heat exchange is carried out between the high-pressure gas and heat accumulation liquid in the fourth heat exchanger, the acting temperature is initially increased, and the energy conversion rate is increased; and the second liquid pump and the third liquid pump are used for adjusting the flow of the heat storage liquid for absorbing heat in the process of compressing gas and the flow of the heat storage liquid for heating high-pressure gas, so that the controllability of the heat regeneration unit is improved.
In another aspect, an embodiment of the present invention provides an air conditioner, including: an air conditioner body; the multifunctional energy storage system for solar spectrum frequency division cascade utilization is arranged on the air conditioner body.
The air conditioner in this embodiment includes an air conditioner body and the multifunctional energy storage system that is utilized in the solar spectrum frequency division cascade manner in any embodiment of the present invention, and the multifunctional energy storage system that is utilized in the solar spectrum frequency division cascade manner is disposed on the air conditioner body, so that the air conditioner has all the beneficial effects of the multifunctional energy storage system that is utilized in the solar spectrum frequency division cascade manner in any embodiment of the present invention, and details are not repeated here.
After the technical scheme of the invention is adopted, the following technical effects can be achieved:
(1) Outputting electric energy by arranging a high-voltage expansion unit; the first evaporator is arranged to output cold energy to the outside; outputting heat by arranging a third heat exchanger; thereby realizing the simultaneous supply of electric energy, heat energy and cold energy.
(2) The solar heat collector, the cold water tank, the solar frequency divider and the first heat exchanger are connected, low-frequency sunlight generated by frequency division of the solar frequency divider is reflected to reach the solar heat collector, heat collecting liquid flows through the heat collecting tube, the heat collecting liquid can absorb heat gathered by the solar heat collector, and heat exchange is realized through the first heat exchanger, so that heat supply to high-pressure gas in an energy storage process is realized.
(3) The cold water tank and the fifth heat exchanger are arranged for heat exchange, so that cold water in the cold water tank can exchange heat with working medium liquid with residual heat, the cold water is conveyed to the heat accumulator, the high-pressure gas flowing out of the high-pressure gas storage device is heated by absorbing heat through a compressed gas process stored in the heat accumulator, the high-pressure gas and the heat accumulation liquid are subjected to heat exchange in the fourth heat exchanger, the acting temperature is preliminarily increased, and the energy conversion rate is increased.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
Fig. 1 is a schematic diagram of an embodiment of a cascade utilization of solar spectrum frequency division according to an embodiment of the present invention.
Fig. 2 is a second schematic diagram of an implementation manner of solar spectrum fractional frequency cascade utilization according to a first embodiment of the present invention.
Fig. 3 is a third schematic diagram of an implementation manner of utilizing the solar spectrum frequency division cascade according to the first embodiment of the present invention.
Description of reference numerals:
100 is a multifunctional energy storage system for solar spectrum frequency division cascade utilization; 1 is a compressor; 2 is an ejector; 3 is a high-pressure expansion unit; 4 is a third heat exchanger; 5 is a second heat exchanger; 6a is a first evaporator; 6b is a second evaporator; 7a is a first flow regulating valve; 7b is a second flow regulating valve; 7c is a third flow regulating valve; 8 is a low-pressure gas storage device; 9 is a high-pressure gas storage device; 10 is a first heat exchanger; 10a is a heat exchanger tube; 11a is a hot water tank; 11b is a cold water tank; 12 is a hot water supply device; 13 is a first liquid pump; 14 is a photovoltaic module; 15 is a cooler; 16 is a photovoltaic module bracket; 17 is a water replenishing component; 18 is an energy storage component; 19 is a discharge end; 20 is a solar energy frequency divider; 21 is a solar heat collector; 22 is a solar collector bracket; a heat accumulator 23; 24a is a second liquid pump; 24b is a third liquid pump; 25 is a cold water tank; 26 is a fourth heat exchanger; 27 is a fifth heat exchanger; and 28, heat exchange equipment.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments of the present invention are described in detail clearly and completely, and it is to be understood 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.
[ first embodiment ] A method for manufacturing a semiconductor device
Referring to fig. 1, a schematic diagram of an implementation of a multifunctional energy storage system 100 for solar spectrum fractional frequency cascade utilization according to a first embodiment of the present invention is shown. The multifunctional energy storage system 100 for solar spectrum fractional frequency cascade utilization includes, for example: the photovoltaic power generation and heat collection subsystem, the energy storage subsystem and the energy release subsystem are connected with each other; the energy storage subsystem includes: a compressor 1; the high-pressure gas storage device 9 is connected with the compressor 1; a second evaporator 6b connected to the compressor 1; the low-pressure gas storage device 8 is connected with the second evaporator 6b; wherein, the low-pressure gas in the low-pressure gas storage device 8 flows through the second evaporator 6b to output cold energy to the outside, and is compressed into high-pressure gas by the compressor 1 and stored in the high-pressure gas storage device 9; the energy release subsystem comprises: the first heat exchanger 10 is connected with the high-pressure gas storage device 9; the high-pressure expansion unit 3 is connected with the first heat exchanger 10; the second heat exchanger 5 is connected with the high-pressure expansion unit 3; the ejector 2 is connected with the second heat exchanger 5; the third heat exchanger 4 is connected with the ejector 2 and the low-pressure gas storage device 8; a first evaporator 6a connecting the ejector 2 and the low pressure gas storage device 8; a first flow rate regulating valve 7a provided between the first evaporator 6a and the low pressure gas storage device 8; the high-pressure gas is released from the high-pressure gas storage device 9, flows through the first heat exchanger 10 to exchange heat with the heat collecting liquid, forms high-temperature and high-pressure gas, enters the high-pressure expansion unit 3 to do work and output electric energy, and the second heat exchanger 5 recovers heat in exhaust gas which does work; the ejector 2 uses the working exhaust as working fluid to eject low-pressure gas from the low-pressure gas storage device 8, the opening degree is controlled by the first flow regulating valve 7a, the low-pressure gas flows through the first evaporator 6a to output cold energy to the outside, the cold energy and the cold energy are mixed into medium-temperature and medium-pressure gas, the medium-temperature and medium-pressure gas enters the third heat exchanger 4 to exchange heat with outside air to output heat, and finally the medium-temperature and medium-pressure gas enters the low-pressure gas storage device 8 to be stored.
For example, the high-pressure expansion machine set 3 is arranged to output electric energy; the first evaporator 6a is arranged to output cold energy to the outside; heat is output by arranging a third heat exchanger 4; thereby realizing the simultaneous supply of electric energy, heat energy and cold energy.
It should be noted that a heat exchanger tube 10a is arranged in the first heat exchanger 10; and the working exhaust is steam exhausted after working.
Preferably, the photovoltaic power generation and heat collection subsystem comprises: a solar heat collector 21 is internally provided with a heat collecting pipe, and the heat collecting pipe is connected with the first heat exchanger 10; the solar energy frequency divider 20 is connected with the solar heat collector 21; the low-frequency sunlight generated by the frequency division of the solar energy frequency divider 20 is reflected to the solar heat collector 21, the heat collecting liquid flows through the heat collecting tube, and the heat collecting liquid can absorb the heat gathered by the solar heat collector 21, so that the heat exchange with the first heat exchanger 10 is realized.
For example, the solar heat collector 21, the cold water tank 11b, the solar frequency divider 20 and the first heat exchanger 10 are connected, low-frequency sunlight generated by frequency division of the solar frequency divider 20 is reflected to reach the solar heat collector 21, heat collecting liquid flows through the heat collecting pipe, the heat collecting liquid can absorb heat gathered by the solar heat collector 21, and heat exchange is realized between the heat collecting liquid and the first heat exchanger 10, so that heat supply of high-pressure gas in the energy storage process is realized.
Further, the photovoltaic power generation and heat collection subsystem further comprises: the photovoltaic module 14, the photovoltaic module 14 is connected with the solar energy frequency divider 20; the energy storage assembly 18, the energy storage assembly 18 connects the photovoltaic assembly 14; the high-frequency sunlight generated by the solar energy frequency divider 20 through frequency division reaches the photovoltaic module 14 to generate electric energy, and the electric energy generated by the photovoltaic module 14 can be stored in the energy storage module.
For example, by arranging the photovoltaic module 14 and the energy storage module 18 on the solar heat collector, the high-frequency sunlight generated by the frequency division of the solar frequency divider 20 reaches the photovoltaic module 14 to generate electric energy, and the electric energy generated by the photovoltaic module 14 can be stored in the energy storage module and discharged from the discharge end 19, so that power is supplied to the building.
Preferably, the multifunctional energy storage system 100 for solar spectrum fractional frequency cascade utilization further includes, for example: a photovoltaic module support 16, and the photovoltaic module support 16 is used for fixing the photovoltaic module 14.
Preferably, the photovoltaic power generation and heat collection subsystem further comprises: a hot water supply device 12, wherein the hot water supply device 12 is connected with the heat collecting pipe and/or the heat exchanger pipe 10a of the first heat exchanger 10; wherein the liquid in the heat collecting tube flowing out of the latter part of the heat collecting tube can be used for supplying hot water to the hot water supplying device 12, and/or; the liquid in the heat collecting tube flowing through the latter part of the heat exchanger tube 10a can be used to supply hot water to the hot water supply device 12.
For example, by providing the hot water supply device 12 on the photovoltaic power generation and heat collection subsystem, the liquid in the heat collection tube flowing out of the latter part of the heat collection tube can be used to supply hot water to the hot water supply device 12; and/or; the liquid in the heat collecting tube flowing through the latter part of the heat exchanger tube 10a can be used to supply hot water to the hot water supply device 12.
Preferably, the photovoltaic power generation and heat collection subsystem further comprises: the cooler 15 is in contact with the photovoltaic module 14, and a heat dissipation channel is arranged in the cooler 15; wherein, the heat dissipation channel is communicated with the heat collection pipe, and heat collection liquid is arranged in the heat dissipation channel.
For example, the cooler 15 connected to the photovoltaic module 14 is provided, and the heat dissipation channel is provided in the cooler 15, so that the temperature of the photovoltaic module 14 can be absorbed while the photovoltaic module 14 is cooled by the cooler 15, on one hand, the heat dissipation channel is communicated with the heat collection tube, and the heat collection liquid with increased temperature is guided into the solar heat collector 21 through the heat collection tube, thereby further improving the energy conversion rate of the heat pump system; on the other hand, since the photoelectric conversion rate of sunlight to the photovoltaic module 14 cannot be 100%, part of sunlight is finally converted into heat energy to raise the temperature of the photovoltaic module 14, and researches show that the power generation efficiency of the photovoltaic module 14 is reduced along with the temperature rise of the photovoltaic module 14, in this embodiment, by arranging the cooler 15, part of heat on the photovoltaic module 14 is taken away by the cooler 15, so that the photovoltaic module 14 is kept at the temperature with higher power generation efficiency, and the higher photoelectric conversion rate of sunlight is realized.
Preferably, the hot water supply device 12 can be further connected to the cooler 15, and the hot water supply device 12 is connected to the first heat exchanger 10, at this time, the hot water supply device 12 can discharge hot water that has exchanged heat with the first heat exchanger 10, can directly discharge hot water in the heat collecting pipe, and can discharge hot water heated by high-frequency sunlight, so that the conversion utilization rate of solar energy is further improved.
Further, the multifunctional energy storage system 100 for solar spectrum fractional frequency cascade utilization, for example, further includes: photovoltaic module support 16, photovoltaic module support 16 connects the heat dissipation channel. For example, the cooler 15 can be better fitted to the photovoltaic module 14 by the photovoltaic module support 16.
Preferably, the photovoltaic power generation and heat collection subsystem further comprises: a solar collector holder 22, the solar collector holder 22 being adapted to hold the solar collector 21.
For example, since the hot water supply device 12 is used for a long time, the water content in the photovoltaic power generation and heat collection subsystem is reduced, and the photovoltaic module 14 is arranged in the heat dissipation channel, on one hand, the temperature of the cooler 15 arranged at the photovoltaic module 14 is higher, and the water temperature can be gradually increased in the cooler 15 without circulating in the photovoltaic power generation and heat collection subsystem all the time; on the other hand, the temperature of the photovoltaic module 14 can be reduced by supplementing water.
Specifically, referring to fig. 3, the photovoltaic power generation and heat collection subsystem further includes: the cold water tank 11b, the cold water tank 11b connects the cooler 15; the hot water tank 11a is connected with the heat collecting pipe and the first heat exchanger 10; the heat exchange equipment 28, the heat exchange equipment 28 is connected with the hot water tank 11a, the cold water tank 11b and the heat collecting pipes; the first liquid pump 13, the first liquid pump 13 locates between heat-exchanger rig 28 and cold water tank 11 b; the heat collecting liquid flowing out of the cold water tank 11b flows into the heat collecting pipe after flowing through the heat exchange device 28, and the heat collecting liquid in the heat collecting pipe flows into the hot water tank 11a after absorbing heat by the heat collecting pipe; part of heat collecting liquid of the hot water tank 11a flows into the first heat exchanger 10 to exchange heat with working medium liquid in the first heat exchanger 10, and the heat collecting liquid after heat exchange flows through the heat exchange equipment 28 and then flows to the first liquid pump 13 to be pressurized; the heat collecting liquid flowing out of the cold water tank 11b is heat-exchanged with the heat collecting liquid flowing out of the first heat exchanger 10 in the heat exchanging device 28.
For example, by arranging the hot water tank 11a and the heat exchange device 28, the heat collecting liquid flowing out of the cold water tank 11b flows into the heat collecting pipes after flowing through the heat exchange device 28, and the heat collecting liquid in the heat collecting pipes flows into the hot water tank 11a after absorbing heat by the heat collecting pipes; on one hand, part of heat collecting liquid of the hot water tank 11a flows into the first heat exchanger 10 to exchange heat with working medium liquid in the first heat exchanger 10, and the heat collecting liquid after heat exchange flows through the heat exchange equipment 28 firstly and then flows to the liquid pump for pressurization; the heat collecting liquid flowing out of the cold water tank 11b and the heat collecting liquid flowing out of the first heat exchanger 10 exchange heat in the heat exchange device 28, so that the energy conversion rate of the heat pump system is improved; on the other hand, the thermal-arrest liquid that flows out the evaporimeter still has higher temperature, directly flows into the liquid pump and can cause certain damage to the liquid pump, influences the life of liquid pump, through the thermal-arrest liquid that will flow out first heat exchanger 10 earlier through the heat transfer equipment 28 heat transfer to reduce the temperature of liquid pump entry department thermal-arrest liquid, play the effect of protection liquid pump to a certain extent, prolong the life of liquid pump.
Preferably, the photovoltaic power generation and heat collection subsystem further comprises: a second flow rate adjustment valve 7b, the second flow rate adjustment valve 7b being provided between the solar collector 21 and the first heat exchanger 10; a third flow rate adjustment valve 7c, the third flow rate adjustment valve 7c being provided between the hot water supply device 12 and the solar collector 21; the second flow regulating valve 7b is used for regulating the flow of the heat collecting liquid for driving the first heat exchanger 10; the third flow rate adjustment valve 7c is for adjusting the flow rate of the heat collecting liquid for supplying hot water.
For example, the second flow regulating valve 7b is arranged for regulating the flow of the heat collecting liquid for driving the first heat exchanger 10, so that the flow of the heat collecting liquid in the photovoltaic power generation and heat collecting subsystem can be conveniently controlled; the third flow regulating valve 7c is used for regulating the flow of the heat collecting liquid for supplying hot water, so that the total amount of the heat collecting liquid in the photovoltaic power generation and heat collecting subsystem can be conveniently controlled.
Specifically, referring to fig. 2, the multifunctional energy storage system 100 for solar spectrum fractional frequency cascade utilization further includes, for example: the heat regeneration unit is connected with the energy release subsystem; the heat recovery unit includes: the fourth heat exchanger 26, the fourth heat exchanger 26 is arranged between the high-pressure gas storage device 9 and the first heat exchanger 10; the fifth heat exchanger 27, the fifth heat exchanger 27 is arranged between the compressor 1 and the high-pressure gas storage device 9; a regenerator 23, the regenerator 23 being provided between the fourth heat exchanger 26 and the fifth heat exchanger 27; a cold water tank 25, the cold water tank 25 being provided between the fourth heat exchanger 26 and the fifth heat exchanger 27; a second liquid pump 24a, the second liquid pump 24a being provided between the accumulator 23 and the fourth heat exchanger 26; a third liquid pump 24b, the third liquid pump 24b being provided between the cold water tank 25 and the fifth heat exchanger 27; the low-pressure gas is compressed by the compressor 1, the heat storage liquid is discharged from the cold water tank 25, the high-pressure and high-temperature gas in the fifth heat exchanger 27 exchanges heat, the heat generated in the process of compressing the gas is absorbed and enters the heat accumulator 23 to be stored, the high-pressure gas flowing out of the high-pressure gas storage device 9 is heated by using the heat absorbed in the process of compressing the gas stored in the heat accumulator 23 in the energy release process, the high-pressure gas and the heat storage liquid exchange heat in the fourth heat exchanger 26, and the working temperature is initially increased; the second liquid pump 24a and the third liquid pump 24b are used to adjust the flow rate of the heat storage liquid for absorbing heat in compressing the gas and the flow rate of the heat storage liquid for heating the high-pressure gas.
For example, by arranging the cold water tank 25 and the fifth heat exchanger 27 to exchange heat, cold water in the cold water tank 25 can exchange heat with working medium liquid with residual heat, and then the cold water is conveyed to the heat accumulator 23, the high-pressure gas flowing out of the high-pressure gas storage device 9 is heated by absorbing heat in the process of compressing gas stored in the heat accumulator 23, the high-pressure gas and the heat accumulation liquid are subjected to heat exchange in the fourth heat exchanger 26, the working temperature is initially increased, and the energy conversion rate is increased; and the second liquid pump 24a and the third liquid pump 24b are arranged to adjust the flow of the heat storage liquid for absorbing heat in the process of compressing gas and the flow of the heat storage liquid for heating high-pressure gas, thereby improving the controllability of the regenerative unit.
[ second embodiment ]
The present invention also provides an air conditioner, for example comprising: an air conditioner body; the multifunctional energy storage system 100 utilizing solar energy spectrum frequency division in a stepped manner in any one of the first embodiment is characterized in that the multifunctional energy storage system 100 utilizing solar energy spectrum frequency division in a stepped manner is arranged on an air conditioner body.
The air conditioner in this embodiment includes an air conditioner body and the multifunctional energy storage system 100 that is utilized in the solar spectrum frequency division cascade manner according to any one of the first embodiments of the present invention, and the multifunctional energy storage system 100 that is utilized in the solar spectrum frequency division cascade manner is disposed on the air conditioner body, so that the air conditioner has all the beneficial effects of the multifunctional energy storage system 100 that is utilized in the solar spectrum frequency division cascade manner according to any one of the first embodiments of the present invention, and details thereof are not repeated.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. The utility model provides a multi-functional energy storage system that solar spectrum frequency division cascade utilized which characterized in that includes: the system comprises a photovoltaic power generation and heat collection subsystem, an energy storage subsystem and an energy release subsystem, wherein the photovoltaic power generation and heat collection subsystem, the energy storage subsystem and the energy release subsystem are connected with one another;
the energy storage subsystem comprises: a compressor (1); the high-pressure gas storage device (9) is connected with the compressor (1); a second evaporator (6 b) connected to the compressor (1); the low-pressure gas storage device (8) is connected with the second evaporator (6 b);
the low-pressure gas in the low-pressure gas storage device (8) flows through the second evaporator (6 b) to output cold energy to the outside, is compressed into high-pressure gas by the compressor (1), and is stored in the high-pressure gas storage device (9);
the energy release subsystem comprises: the first heat exchanger (10) is connected with the high-pressure gas storage device (9); a high-pressure expansion unit (3) connected to the first heat exchanger (10); a second heat exchanger (5) connected to the high pressure expander train (3); an ejector (2) connected to the second heat exchanger (5); the third heat exchanger (4) is connected with the ejector (2) and the low-pressure gas storage device (8); a first evaporator (6 a) connecting the ejector (2) and the low pressure gas storage device (8); a first flow regulating valve (7 a) arranged between the first evaporator (6 a) and the low-pressure gas storage device (8);
the high-pressure gas is released from the high-pressure gas storage device (9), flows through the first heat exchanger (10) to exchange heat with heat collection liquid, forms high-temperature and high-pressure gas, enters the high-pressure expansion unit (3) to do work and output electric energy, and the second heat exchanger (5) recovers heat in exhaust gas which does work; the ejector (2) uses working exhaust as working fluid to eject low-pressure gas from the low-pressure gas storage device (8), the opening degree is controlled through the first flow regulating valve (7 a), the low-pressure gas flows through the first evaporator (6 a) to output cold energy to the outside, the cold energy and the cold energy are mixed into medium-temperature and medium-pressure gas, the medium-temperature and medium-pressure gas enters the third heat exchanger (4) to exchange heat with outside air to output heat, and finally the medium-temperature and medium-pressure gas enters the low-pressure gas storage device (8) to be stored;
the heat regeneration unit is connected with the energy release subsystem; the heat recovery unit includes:
the fourth heat exchanger (26), the fourth heat exchanger (26) is arranged between the high-pressure gas storage device (9) and the first heat exchanger (10);
the fifth heat exchanger (27), the said fifth heat exchanger (27) locates between the said compressor (1) and the said high-pressure gas storage device (9);
a heat accumulator (23), the heat accumulator (23) being arranged between the fourth heat exchanger (26) and the fifth heat exchanger (27);
a cold water tank (25), the cold water tank (25) being provided between the fourth heat exchanger (26) and the fifth heat exchanger (27);
a second liquid pump (24 a), said second liquid pump (24 a) being provided between said heat accumulator (23) and said fourth heat exchanger (26);
a third liquid pump (24 b), said third liquid pump (24 b) being provided between said cold water tank (25) and said fifth heat exchanger (27);
low-pressure gas is compressed by the compressor (1), heat storage liquid is discharged from the cold water tank (25), high-pressure high-temperature gas in the fifth heat exchanger (27) exchanges heat, heat generated in the process of compressing the gas is absorbed, the gas enters the heat accumulator (23) to be stored, in the energy release process, the high-pressure gas flowing out of the high-pressure gas storage device (9) is heated by using the heat absorbed in the process of compressing the gas stored in the heat accumulator (23), heat exchange is carried out between the high-pressure gas and the heat storage liquid in the fourth heat exchanger (26), and the working temperature is increased primarily; the second liquid pump (24 a) and the third liquid pump (24 b) are used for adjusting the flow rate of a heat storage liquid for absorbing heat in the process of compressing the gas and the flow rate of a heat storage liquid for heating the high-pressure gas.
2. The multifunctional energy storage system for solar spectrum fractional frequency cascade utilization of claim 1, wherein the photovoltaic power generation and heat collection subsystem comprises:
a solar heat collector (21) internally provided with a heat collecting pipe, and the heat collecting pipe is connected with the first heat exchanger (10);
the solar energy frequency divider (20) is connected with the solar heat collector (21);
the low-frequency sunlight generated by frequency division of the solar frequency divider (20) is reflected to the solar heat collector (21), heat collecting liquid flows through the heat collecting tube, and the heat collecting liquid can absorb heat gathered by the solar heat collector (21) so as to exchange heat with the first heat exchanger (10).
3. The multifunctional energy storage system for solar energy spectral frequency division cascade utilization of claim 2, wherein the photovoltaic power generation and heat collection subsystem further comprises:
a photovoltaic module (14), wherein the photovoltaic module (14) is connected with the solar energy frequency divider (20);
an energy storage assembly (18), wherein the energy storage assembly (18) is connected with the photovoltaic assembly (14);
the high-frequency sunlight generated by frequency division of the solar energy frequency divider (20) reaches the photovoltaic module (14) to generate electric energy, and the electric energy generated by the photovoltaic module (14) can be stored in the energy storage module (18).
4. The multifunctional energy storage system for solar energy spectral frequency division cascade utilization of claim 2, wherein the photovoltaic power generation and heat collection subsystem further comprises:
a hot water supply device (12), wherein the hot water supply device (12) is connected with the heat collecting pipe and/or a heat exchanger pipe (10 a) of the first heat exchanger (10);
wherein the liquid in the heat collecting pipe flows out of the latter part of the heat collecting pipe and can be used for supplying hot water to the hot water supply device (12); and/or; the liquid in the heat collecting pipe flowing through the latter part of the heat exchanger tube (10 a) can be used for supplying hot water to the hot water supply device (12).
5. The multifunctional energy storage system for solar energy spectral frequency division cascade utilization of claim 3, wherein the photovoltaic power generation and heat collection subsystem further comprises:
the cooler (15), the cooler (15) is in contact with the photovoltaic module (14), and a heat dissipation channel is arranged in the cooler (15);
the heat dissipation channel is communicated with the heat collection tube, and heat collection liquid is arranged in the heat dissipation channel.
6. The multifunctional energy storage system for solar spectrum fractional frequency step utilization according to claim 5, further comprising:
and the water replenishing assembly (17) is connected with the heat dissipation channel (17).
7. The multifunctional energy storage system for solar energy spectral frequency division cascade utilization according to claim 5, wherein the photovoltaic power generation and heat collection subsystem further comprises:
a cold water tank (11 b), the cold water tank (11 b) being connected to the cooler (15);
a hot water tank (11 a), the hot water tank (11 a) connecting the heat collecting tube and the first heat exchanger (10);
the heat exchange equipment (28) is connected with the hot water tank (11 a), the cold water tank (11 b) and the heat collecting pipe;
a first liquid pump (13), wherein the first liquid pump (13) is arranged between the heat exchange equipment (28) and the cold water tank (11 b);
the heat collecting liquid flowing out of the cold water tank (11 b) flows into the heat collecting pipe after flowing through the heat exchange equipment (28), and the heat collecting liquid in the heat collecting pipe flows into the hot water tank (11 a) after absorbing heat by the heat collecting pipe; part of heat collecting liquid of the hot water tank (11 a) flows into the first heat exchanger (10) to exchange heat with working medium liquid in the first heat exchanger (10), and the heat collecting liquid after heat exchange flows through the heat exchange equipment (28) firstly and then flows to the first liquid pump (13) to be pressurized; the heat collecting liquid flowing out of the cold water tank (11 b) and the heat collecting liquid flowing out of the first heat exchanger (10) exchange heat in the heat exchange equipment (28).
8. The multifunctional energy storage system for solar spectrum fractional frequency cascade utilization according to claim 4, further comprising:
a second flow regulating valve (7 b), the second flow regulating valve (7 b) being provided between the solar collector (21) and the first heat exchanger (10);
a third flow regulating valve (7 c), said third flow regulating valve (7 c) being provided between said hot water supply device (12) and said solar collector (21);
wherein the second flow regulating valve (7 b) is used for regulating the flow of the heat collecting liquid for driving the first heat exchanger (10); the third flow regulating valve (7 c) is used for regulating the flow of the heat collecting liquid for supplying hot water.
9. An air conditioner, comprising:
an air conditioner body;
the multifunctional energy storage system (100) for solar spectrum fractional frequency cascade utilization according to any one of claims 1 to 8, wherein the multifunctional energy storage system (100) for solar spectrum fractional frequency cascade utilization is arranged on the air conditioner body.
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