CN112944721B - Small-size many antithetical couplet confession system based on sky radiation suitable for it is outdoor - Google Patents
Small-size many antithetical couplet confession system based on sky radiation suitable for it is outdoor Download PDFInfo
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- CN112944721B CN112944721B CN202110418760.4A CN202110418760A CN112944721B CN 112944721 B CN112944721 B CN 112944721B CN 202110418760 A CN202110418760 A CN 202110418760A CN 112944721 B CN112944721 B CN 112944721B
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- 230000005855 radiation Effects 0.000 title claims abstract description 123
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 248
- 239000004065 semiconductor Substances 0.000 claims abstract description 94
- 238000005057 refrigeration Methods 0.000 claims abstract description 37
- 238000002360 preparation method Methods 0.000 claims abstract description 28
- 230000005676 thermoelectric effect Effects 0.000 claims abstract description 27
- 238000010248 power generation Methods 0.000 claims abstract description 26
- 238000005338 heat storage Methods 0.000 claims abstract description 17
- 238000005086 pumping Methods 0.000 claims description 7
- 230000003020 moisturizing effect Effects 0.000 claims description 6
- 239000011810 insulating material Substances 0.000 claims description 4
- 239000012774 insulation material Substances 0.000 claims description 2
- 238000001816 cooling Methods 0.000 abstract description 10
- 230000009471 action Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 4
- 238000004134 energy conservation Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
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- 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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B23/00—Machines, plants or systems, with a single mode of operation not covered by groups F25B1/00 - F25B21/00, e.g. using selective radiation effect
- F25B23/003—Machines, plants or systems, with a single mode of operation not covered by groups F25B1/00 - F25B21/00, e.g. using selective radiation effect using selective radiation effect
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- 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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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- 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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B21/00—Machines, plants or systems, using electric or magnetic effects
- F25B21/02—Machines, plants or systems, using electric or magnetic effects using Peltier effect; using Nernst-Ettinghausen effect
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- 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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] 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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/60—Thermal-PV hybrids
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- Engineering & Computer Science (AREA)
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- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Photovoltaic Devices (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention provides a small-sized multi-combined supply system based on sky radiation and suitable for the open air, comprising: one part of the sky radiation cold water loop transmits cold energy to the sky radiation cold water preparation module through the first heat exchanger, the other part of the sky radiation cold water loop absorbs heat of the semiconductor thermoelectric effect module and is discharged to the heat storage water tank through the second heat exchanger, and the last part of the sky radiation cold water loop is directly transmitted to a cold water supply end; the radiation refrigeration loop cools through a second heat exchanger and a semiconductor thermoelectric effect module for secondary cooling and transmits cooling capacity to the radiation tail end; on one hand, the solar power generation and heat collection integrated circuit supplies electric energy through the electric storage device, on the other hand, heat is sent into the heat storage water tank through the heat collector, and the heat storage water tank can provide hot water. The invention has high comprehensive energy efficiency, energy saving, practicability and multi-stage energy utilization, can simultaneously realize cold water supply, hot water supply, power supply and radiation refrigeration, and solves the energy multi-combined supply requirement of outdoor small-sized places.
Description
Technical Field
The invention relates to the technical field of energy application, in particular to a small multi-combined supply system based on sky radiation and suitable for the outdoors.
Background
With the continuous development of society, people groups such as outdoor sports, leisure, tourism, operation and the like are also continuously increased, and the demand of the groups on outdoor energy supply is also continuously improved, such as iced beverages, multifunctional tents, bait refrigeration, high-end agriculture and the like. On the other hand, the traditional multi-connected energy supply system is often suitable for indoor environments, the system equipment is large and is not easy to move, and the system is not suitable for outdoor places which lack power supplies and have mobility and temporality in energy application. Therefore, how to utilize characteristics such as abundant, open-air of outdoor environment solar energy resource high-efficiently, realize the multistage utilization and many-sided application of the energy, become the problem of being used for solution.
The sky radiation refrigeration technology is a refrigeration mode which takes universe as a cold source and radiates redundant heat to the universe through the atmosphere by utilizing the infrared radiation principle of objects. The improvement of sky radiation refrigerating output needs to reduce absorbed solar radiation energy, reduce absorbed atmospheric radiation energy, improve self infrared radiation energy and simultaneously reduce the heat convection loss with the air. The main advantages of the sky radiation refrigeration technology are as follows: the refrigeration process does not need energy; the higher the ambient temperature is, the stronger the radiation is, and the larger the refrigerating capacity is; no pollution to the environment. Thus, sky radiation may be suitable for outdoor environments. At present, the experimental findings of cold water preparation by sky radiation are as follows: in noon (12:30-2:00pm), the water temperature in the sky radiation cold water preparation module is averagely lower than the ambient temperature by more than 10 ℃, and the temperature difference is continuously increased and exceeds 13 ℃ along with the decrease of solar radiation.
The semiconductor thermoelectric effect is that when a thermocouple formed by connecting an N-type semiconductor material and a P-type semiconductor material has current flowing through it, heat transfer occurs between the two ends, and the heat is transferred from one end to the other end, so that a temperature difference is generated to form a cold end and a hot end. It has small size and simple structure; the weight is light, and the maintenance is convenient; the use is convenient, and the refrigeration can be realized by small current; no moving parts and no noise; no refrigerant pollution and the like. At present, the application of the thermoelectric effect of the semiconductor is limited by low refrigeration efficiency, the refrigeration efficiency can be effectively improved by timely heat dissipation of the hot end of the semiconductor, and how to effectively recover the heat dissipated by the hot end of the semiconductor is to realize the full utilization of energy, so that the semiconductor thermoelectric effect is worthy of system design.
The solar photovoltaic power generation and heat collection integrated technology is based on a photovoltaic power generation principle and a solar heat collection principle, converts renewable energy, namely solar energy, into electric energy and heat energy, supplies the electric energy, and simultaneously utilizes a heat collector to generate the heat energy. For a single photovoltaic power generation system, as the temperature of the solar panel rises by 1 ℃, the photovoltaic power generation efficiency is reduced by about 0.4-0.5%, and more than 80% of energy of sunlight reaching the solar panel is converted into heat energy, the working temperature of the solar panel is usually more than 50 ℃, and the photovoltaic power generation efficiency is seriously influenced.
The invention patent with publication number CN111207530A discloses a composite refrigerating device with a semiconductor refrigerator coupled with a sky radiation refrigerating body, which combines an active semiconductor refrigerating technology and a passive sky radiation refrigerating technology to refrigerate a coolant and then provide refrigerating capacity for a system. The solar photovoltaic heat collection and refrigeration integrated system based on the sky radiation refrigeration technology, the semiconductor thermoelectric effect and the solar photovoltaic heat collection and generation integrated technology maximizes the energy utilization, promotes the semiconductor refrigeration efficiency and the photovoltaic power generation efficiency while utilizing the heat energy, has high comprehensive efficiency, realizes the multi-stage and multi-element utilization of the energy, promotes the energy utilization mutually, has energy-saving property, can supply cold water, hot water, power, refrigeration and the like at the same time, and meets the requirements of outdoor small-sized multi-combined supply systems.
In conclusion, the outdoor environment needs a multi-supply system with good energy conservation, high comprehensive efficiency, good practicability, no emission and no pollution, so that the requirement of outdoor personnel on multi-energy supply is met, and the life quality of people is improved.
Disclosure of Invention
The invention aims to provide a small multi-combined supply system based on sky radiation, which is suitable for outdoor and solves various requirements of outdoor personnel or space on energy on the premise of energy conservation, practicability, no pollution and high comprehensive efficiency.
The invention provides the following technical scheme:
a miniature multi-union system based on sky radiation suitable for outdoor use, comprising:
the sky radiation cold water loop comprises a sky radiation cold water preparation module, a first heat exchanger, a semiconductor thermoelectric effect module and a second heat exchanger, wherein the sky radiation cold water preparation module can prepare cold water and is connected with the first heat exchanger to form a cold water loop; the sky radiation cold water preparation module, the semiconductor thermoelectric effect module, the second heat exchanger and the sky radiation cold water preparation module are sequentially connected to form a cold water loop;
the radiation refrigeration loop comprises a radiation tail end, a water outlet and a water inlet of the radiation tail end are respectively connected with the first heat exchanger and the semiconductor thermoelectric effect module, and the first heat exchanger is connected with the semiconductor thermoelectric effect module to form a cold water loop;
the solar power generation and heat collection integrated circuit comprises a solar panel, an electric storage device, a heat collector and a heat storage water tank, wherein the electric storage device is connected with the solar panel and the semiconductor thermoelectric effect module so as to realize charging and power supply; the solar panel's delivery port the heat collector heat storage water tank the second heat exchanger and heat storage water tank connects gradually, forms the hot water return circuit.
Preferably, sky radiation cold water prepares module includes the holding pond of making by insulation material, be equipped with wind screen, radiation refrigeration metamaterial and water in proper order from top to bottom in the holding pond, be equipped with the water the relative both sides in holding pond are equipped with cold water entry and cold water export respectively.
Preferably, baffles vertically connected with the corresponding inner walls are arranged on the inner walls of the other two sides of the containing pool provided with the water body, the width of each baffle is smaller than that of the containing pool and is larger than half of that of the containing pool, and the baffles arranged on the two side walls are arranged in a staggered manner, so that cold water from the cold water inlet flows out from the cold water outlet along an S-shaped path.
Preferably, the semiconductor thermoelectric effect module comprises a semiconductor hot end heat exchanger, a semiconductor cold end heat exchanger and a semiconductor thermopile, the semiconductor thermopile is clamped between the semiconductor hot end heat exchanger and the semiconductor cold end heat exchanger, and the semiconductor hot end heat exchanger can absorb hot end heat of the semiconductor thermopile;
in the sky radiation cold water loop, the sky radiation cold water preparation module and the second heat exchanger are both connected with the semiconductor hot end heat exchanger; in the radiation refrigeration loop, the first heat exchanger and the radiation tail end are both connected with the semiconductor cold-end heat exchanger, and in the solar power generation and heat collection integrated loop, the power input end of the solar panel is connected with the power storage device and the semiconductor thermopile to supply power to the power storage device and the semiconductor thermopile.
Preferably, the sky radiation cold water loop further comprises a first four-way valve and a second four-way valve, and the first four-way valve is respectively connected with the water outlet end of the sky radiation cold water preparation module, the cold water supply end, the water inlet end of the first heat exchanger and the water inlet end of the semiconductor thermoelectric effect module; the second cross valve is connected respectively sky radiation cold water prepares module inlet end, first heat exchanger play water end, second heat exchanger play water end and moisturizing pipeline, be equipped with the solenoid valve on the moisturizing pipeline.
Preferably, the sky radiation cold water loop further comprises a first water pump for sending cold water of the sky radiation cold water making module to the first four-way valve; the radiation refrigeration loop comprises a second water pump which is used for realizing water circulation of the corresponding cold water loop; the solar power generation and heat collection integrated loop comprises a third water pump and a fourth water pump, the third water pump is used for pumping hot water from the heat collector into the heat storage water tank, and the fourth water pump is used for pumping cold water of the heat storage water tank into the second heat exchanger.
Preferably, the semiconductor hot end heat exchanger and the semiconductor cold end heat exchanger both comprise heat exchange fins, the cold water pipeline is arranged in an s shape, and the heat exchange fins are arranged in gaps of the cold water pipeline and are in close contact with the cold water pipeline.
Preferably, the wind screen is made of a PE film, and the thermal coefficient of the heat-insulating material is less than or equal to 0.12.
The invention has the beneficial effects that:
1. the system can simultaneously realize multi-energy supply of cold water supply, refrigeration, hot water supply and power generation through a sky radiation cold water loop, a radiation refrigeration loop and a solar power generation and heat collection integrated loop, and solves various requirements of outdoor personnel or space on energy;
2. the sky radiation cold water preparation module in the sky radiation cold water loop does not need energy consumption, and renewable energy solar energy is used for power supply and heat collection, so that energy is saved;
3. the cooling efficiency of the cold end of the semiconductor thermopile is improved while cold water absorbs heat of the hot end of the semiconductor thermopile through the semiconductor hot end heat exchanger, the photovoltaic power generation efficiency of the solar panel is improved while cold water absorbs heat through the solar panel and the heat collector, and the comprehensive efficiency is high;
4. the system does not contain refrigerant and other polluted working media, and does not pollute the atmospheric environment;
5. the system has no large-scale moving equipment and has low noise;
6. the system does not contain large and high-power equipment with the same volume as a traditional compressor, and can be suitable for outdoor places with various requirements on energy sources.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of the system architecture of the present invention;
FIG. 2 is a schematic view of a sky radiation cold water producing module according to the present invention;
FIG. 3 is a schematic view of a water flow structure in the sky radiation cold water producing module according to the present invention;
FIG. 4 is a schematic diagram of the connection of the semiconductor hot-end heat exchanger, the semiconductor cold-end heat exchanger and the cold water pipeline.
Detailed Description
As shown in fig. 1, a small-sized multi-combined supply system based on sky radiation suitable for outdoor includes a sky radiation cold water loop, a radiation refrigeration loop and a solar power generation and heat collection integrated loop.
As shown in fig. 1, the sky radiation cold water loop includes a sky radiation cold water making module 1, a first heat exchanger 4, a semiconductor thermoelectric effect module and a second heat exchanger 8, the sky radiation cold water making module 1 can make cold water and is connected with the first heat exchanger 4 to form a cold water loop; the sky radiation cold water preparation module 1, the semiconductor thermoelectric effect module, the second heat exchanger 8 and the sky radiation cold water preparation module 1 are sequentially connected to form a cold water loop.
The semiconductor thermoelectric effect module comprises a semiconductor hot end heat exchanger 7, a semiconductor cold end heat exchanger 9 and a semiconductor thermopile 18, the semiconductor thermopile 18 is clamped between the semiconductor hot end heat exchanger 7 and the semiconductor cold end heat exchanger 9, and the semiconductor hot end heat exchanger 7 can absorb hot end heat of the semiconductor thermopile 18; in the sky radiation cold water loop, the sky radiation cold water preparation module 1 and the second heat exchanger 8 are connected with the semiconductor hot end heat exchanger 7.
The sky radiation cold water loop also comprises a first four-way valve 3 and a second four-way valve 5, wherein the first four-way valve 3 is respectively connected with a water outlet end of the sky radiation cold water preparation module 1, a cold water supply end, a water inlet end 4a of the first heat exchanger 4 and a water inlet end of the semiconductor thermoelectric effect module; the second four-way valve 5 is respectively connected with the water inlet end of the sky radiation cold water preparation module 1, the water outlet end 4b of the first heat exchanger 4, the water outlet end 8b of the second heat exchanger 8 and a water supplementing pipeline, and the water supplementing pipeline is provided with an electromagnetic valve 6.
The sky radiation cold water loop also comprises a first water pump 2 which is used for sending the cold water of the sky radiation cold water making module 1 to a first four-way valve 3.
As shown in fig. 2-3, the sky radiation cold water producing module 1 includes a receiving tank 22 made of a heat insulating material, a wind screen 19, a radiation refrigeration metamaterial 20 and a water body 21 are sequentially disposed in the receiving tank 22 from top to bottom, and a cold water inlet and a cold water outlet are respectively disposed on two opposite sides of the receiving tank 22 having the water body 21.
Wherein, the wind screen 19 is a transparent material with small heat convection coefficient, and the material can be a PE film; the radiation refrigeration metamaterial 20 has low absorptivity within the range of 0.3-2.5 mu m, high emissivity within the range of 8-13 mu m, and high reflectivity in other wave bands; the heat insulating material is a material having a thermal coefficient of 0.12 or less.
As shown in fig. 1, the operation of the sky radiation cold water loop is as follows:
the sky radiation cold water preparation module 1 prepares cold water and sends into a first four-way valve 3 through a first water pump 2, and the first four-way valve 3 divides the cold water into three ways: the first path 3a can be directly used by a cold water supply end; the second path 3b is connected with a first interface 4a of a first heat exchanger 4, flows out of a second interface 4b of the first heat exchanger 4 after the radiation refrigeration loop is subjected to heat exchange and cooling through the first heat exchanger 4, is connected with a second four-way valve 5, and flows back to the sky radiation cold water preparation module 1 to form a cold water loop; the third path 3c is connected with a semiconductor hot end heat exchanger 7, is cooled and then is connected with a first interface 8a of a second heat exchanger 8, discharges heat to a solar power generation and heat collection integrated circuit through the second heat exchanger 8, is connected with a second four-way valve 5 through a second interface 8b of the second heat exchanger 8, and flows back to the sky radiation cold water preparation module 1 to form a cold water loop. In addition, solenoid valve 6 is installed on moisturizing pipeline to connect second cross valve 5, connect sky radiation cold water again and prepare module 1, through the change that detects sky radiation cold water return circuit water yield, control valve aperture, in time carry out the moisturizing.
As shown in fig. 1, the radiation refrigeration circuit includes a radiation end 11, a water outlet and a water inlet of the radiation end 11 are respectively connected to the first heat exchanger 4 and the semiconductor thermoelectric effect module, and the first heat exchanger 4 is connected to the semiconductor thermoelectric effect module to form a cold water circuit.
In the radiation refrigeration loop, a first heat exchanger 4 and a radiation tail end 11 are both connected with a semiconductor cold-end heat exchanger 9; the radiation refrigeration loop comprises a second water pump 10 used for realizing the water circulation of the corresponding cold water loop.
The operation of the radiation refrigeration circuit is as follows: higher water of temperature gets into first heat exchanger 4 through first heat exchanger 4 third interface 4c from radiation end 11 export 11b and carries out preliminary cooling, and the water after preliminary cooling flows out from first heat exchanger 4 fourth interface 4d to carry out the secondary cooling through semiconductor cold end heat exchanger 9, send into radiation end 11 through radiation end 11 entry 11a by second water pump 10 at last, form the return circuit. In addition, the radiating end 11 can be used directly for radiation cooling of small outdoor spaces.
As shown in fig. 1, the solar power generation and heat collection integrated circuit includes a solar panel 12, an electric storage device 17, a heat collector 13 and a heat storage water tank 15, wherein the electric storage device 17 is connected with the solar panel 12 and a semiconductor thermoelectric effect module to realize charging and power supply; the water outlet of the solar panel 12, the heat collector 13, the heat storage water tank 15, the second heat exchanger 8 and the heat storage water tank 15 are connected in sequence to form a hot water loop.
In the solar power generation and heat collection integrated loop, the power input end of the solar panel 12 is connected with the power storage device 17 and the semiconductor thermopile 18 to supply power for the semiconductor thermopile.
The solar power generation and heat collection integrated circuit comprises a third water pump 14 and a fourth water pump 16, wherein the third water pump 14 is used for pumping hot water from the heat collector 13 into the hot water storage tank 15, and the fourth water pump 16 is used for pumping cold water in the hot water storage tank 15 into the second heat exchanger 8.
The working process of the solar power generation and heat collection integrated loop is as follows:
the power input end 12a of the solar panel 12 is connected with the electric storage device 17 through a wire, and the electric storage device 17 is connected with the semiconductor thermopile 18 through a wire and supplies power to the semiconductor thermopile 18 on one hand, and supplies power to other outdoor equipment on the other hand, so that a power generation loop is formed. Outdoor cold water enters from a cold water inlet section 12b of a solar panel 12, a heat collector 13 connected with the solar panel 12 absorbs heat, heated hot water is connected with a third water pump 14, the hot water enters a hot water storage tank 15 from a first interface 15a of the hot water storage tank 15, water with lower temperature in the hot water storage tank 15 enters a second heat exchanger 8 from a third interface 8c of the second heat exchanger under the action of a fourth water pump 16 through a second interface 15b of the hot water storage tank, and after the hot water is heated by the second heat exchanger 8, the water is sent to the third interface 15c of the hot water storage tank from a fourth interface 8d of the second heat exchanger 15 and enters the hot water storage tank 15, and a fourth interface 15d of the hot water storage tank 15 can provide hot water for the outside to form a hot water loop.
As shown in fig. 4, the semiconductor hot-end heat exchanger 7 and the semiconductor cold-end heat exchanger 9 both include heat exchange fins 24, the cold water pipe 25 is in an s-shaped configuration, and the heat exchange fins 24 are disposed in a gap of the cold water pipe 25 and are in close contact therewith.
As shown in fig. 1-4, a small-sized multi-combined supply system based on sky radiation suitable for outdoor use, in operation, a sky radiation cold water preparation module 1 is placed outdoors, and the sky radiation cold water preparation module 1 performs heat radiation on the sky under the action of a radiation refrigeration metamaterial 20, so that the temperature is reduced, and cold radiation is performed on a water body 21 below the sky to obtain cold water.
Meanwhile, the solar panel 12 is placed at a place where sunlight is abundant outdoors, and the solar panel 12 starts to charge the power storage device 17 due to the photovoltaic power generation effect.
The electric storage device 17 supplies power to the semiconductor thermopile 18 to enable the semiconductor thermopile 18 to start working, heat is transferred from one side of the semiconductor cold-end heat exchanger 9 to one side of the semiconductor hot-end heat exchanger 7, and power can be supplied to other outdoor low-power equipment.
In addition, the solar panel 12 is connected with cold water, the cold water absorbs heat under the action of the heat collector 13, the temperature of the solar panel 12 is reduced, the photovoltaic power generation efficiency of the solar panel is improved, and heated hot water is fed into the hot water storage tank 15 under the action of the third water pump 14.
The cold water prepared by the sky radiation cold water preparation module 1 is divided into three paths under the action of the first water pump 2 and the first four-way valve 3: the first path 3a can directly provide cold water for personnel, and the electromagnetic valve 6 controls the opening of the valve according to the change of the water quantity of the sky radiation cold water loop, and timely supplements water for the sky radiation cold water preparation module 1 through the second four-way valve 5; the second path 3b primarily cools the circulating water in the radiation refrigeration loop through a first heat exchanger 4; the third path 3c absorbs the heat of the hot end of the semiconductor thermopile 18 through the semiconductor hot end heat exchanger 7, indirectly increases the refrigerating efficiency of the cold end of the semiconductor thermopile 18, transmits the heat of the semiconductor hot end to the water body 21 in the heat storage water tank 15 through the second heat exchanger 8, and finally returns the cold water of the second path 3b and the third path 3c to the sky radiation cold water preparation module 1 through the second four-way valve 5 again for the next round of circulation.
In addition, the hot water storage tank 15 can provide hot water for the outside under the combined action of the heat collector 13 and the second heat exchanger 8.
In the radiation refrigeration loop, circulating water with higher temperature flows out of an outlet 11b of the radiation tail end 11 and is subjected to primary and secondary cooling through the first heat exchanger 4 and the semiconductor cold-end heat exchanger 9 respectively, and the cooled circulating water flows into the radiation tail end 11 again under the action of the second water pump 10 to perform radiation cooling on an outdoor refrigeration space.
The system solves the multiple demands of outdoor personnel or space on energy sources on the premise of energy conservation, practicability, no pollution and high comprehensive efficiency, and can simultaneously realize the effects of cold water supply, hot water supply, power generation, refrigeration and the like.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A miniature multi-feed system based on sky radiation suitable for outdoor use, comprising:
the sky radiation cold water loop comprises a sky radiation cold water preparation module, a first heat exchanger, a semiconductor thermoelectric effect module and a second heat exchanger, wherein the sky radiation cold water preparation module can prepare cold water and is connected with the first heat exchanger to form a cold water loop; the sky radiation cold water preparation module, the semiconductor thermoelectric effect module, the second heat exchanger and the sky radiation cold water preparation module are sequentially connected to form a cold water loop;
the radiation refrigeration loop comprises a radiation tail end, a water outlet and a water inlet of the radiation tail end are respectively connected with the first heat exchanger and the semiconductor thermoelectric effect module, and the first heat exchanger is connected with the semiconductor thermoelectric effect module to form a cold water loop;
the solar power generation and heat collection integrated circuit comprises a solar panel, an electric storage device, a heat collector and a heat storage water tank, wherein the electric storage device is connected with the solar panel and the semiconductor thermoelectric effect module so as to realize charging and power supply; the solar panel's delivery port the heat collector heat storage water tank the second heat exchanger and heat storage water tank connects gradually, forms the hot water return circuit.
2. The system of claim 1, wherein the sky radiation cold water producing module comprises a receiving tank made of heat insulating material, the receiving tank is provided with a wind screen, a radiation refrigeration metamaterial and a water body from top to bottom, and two opposite sides of the receiving tank provided with the water body are respectively provided with a cold water inlet and a cold water outlet.
3. The sky-radiation-based compact multi-feed system as claimed in claim 2, wherein the receiving tank is provided with baffles vertically connected to the inner walls of the receiving tank, the baffles having a width smaller than the width of the receiving tank and larger than a half of the width of the receiving tank, and the baffles provided on both side walls are arranged in a staggered manner such that the cold water from the cold water inlet flows out of the cold water outlet along an S-shaped path.
4. The miniature multi-feed system suitable for outdoor use based on sky radiation of claim 1, wherein said semiconductor thermoelectric effect module comprises a semiconductor hot end heat exchanger, a semiconductor cold end heat exchanger and a semiconductor thermopile, said semiconductor thermopile being sandwiched between said semiconductor hot end heat exchanger and said semiconductor cold end heat exchanger, said semiconductor hot end heat exchanger being capable of absorbing hot end heat of said semiconductor thermopile;
in the sky radiation cold water loop, the sky radiation cold water preparation module and the second heat exchanger are both connected with the semiconductor hot end heat exchanger; in the radiation refrigeration loop, the first heat exchanger and the radiation tail end are both connected with the semiconductor cold-end heat exchanger, in the solar power generation and heat collection integrated loop, the power input end of the solar panel is connected with the electric storage device through a wire, and the electric storage device is connected with the semiconductor thermopile through a wire and supplies power for the semiconductor thermopile.
5. The miniature sky-radiation-based multi-couple supply system suitable for outdoor use as claimed in claim 1, wherein said sky-radiation cold water loop further comprises a first four-way valve and a second four-way valve, said first four-way valve being connected to said sky-radiation cold water producing module outlet end, said cold water supply end, said first heat exchanger inlet end and said semiconductor thermoelectric effect module inlet end, respectively; the second cross valve is connected respectively sky radiation cold water prepares module inlet end, first heat exchanger play water end, second heat exchanger play water end and moisturizing pipeline, be equipped with the solenoid valve on the moisturizing pipeline.
6. The miniature sky-radiation-based multi-feed system suitable for outdoor use according to claim 5, wherein said sky-radiation cold water circuit further comprises a first water pump for pumping cold water of said sky-radiation cold water producing module to said first four-way valve; the radiation refrigeration loop comprises a second water pump which is used for realizing water circulation of the corresponding cold water loop; the solar power generation and heat collection integrated loop comprises a third water pump and a fourth water pump, the third water pump is used for pumping hot water from the heat collector into the heat storage water tank, and the fourth water pump is used for pumping cold water of the heat storage water tank into the second heat exchanger.
7. The sky-radiation-based compact multi-couple system as recited in claim 4, wherein said semiconductor hot side heat exchanger and said semiconductor cold side heat exchanger each comprise heat exchange fins, and wherein said cold water pipe is disposed in an s-shape, and said heat exchange fins are disposed in a gap of said cold water pipe and in close contact therewith.
8. The sky-radiation-based compact multi-generation system as claimed in claim 2, wherein the wind screen is made of PE film, and the thermal coefficient of the thermal insulation material is 0.12 or less.
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