CN106679229A - Auxiliary vapor compression refrigeration system for semiconductor refrigeration driven by solar photovoltaic power generation - Google Patents

Auxiliary vapor compression refrigeration system for semiconductor refrigeration driven by solar photovoltaic power generation Download PDF

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Publication number
CN106679229A
CN106679229A CN201710082746.5A CN201710082746A CN106679229A CN 106679229 A CN106679229 A CN 106679229A CN 201710082746 A CN201710082746 A CN 201710082746A CN 106679229 A CN106679229 A CN 106679229A
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CN
China
Prior art keywords
semiconductor
water
semiconductor refrigerating
element
heat
Prior art date
Application number
CN201710082746.5A
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Chinese (zh)
Inventor
赵红霞
黄卓
王雷
王鸣
王一鸣
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山东大学
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Priority to CN201710082746.5A priority Critical patent/CN106679229A/en
Publication of CN106679229A publication Critical patent/CN106679229A/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B21/00Machines, plant, or systems, using electric or magnetic effects
    • F25B21/02Machines, plant, or systems, using electric or magnetic effects using Peltier effect; using Nernst-Ettinghausen effect
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B27/00Machines, plant, or systems, using particular sources of energy
    • F25B27/002Machines, plant, or systems, using particular sources of energy using solar energy
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B43/00Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
    • F25B43/006Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat accumulators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B2321/00Details of machines, plants, or systems, using electric or magnetic effects
    • F25B2321/02Details of machines, plants, or systems, using electric or magnetic effects using Peltier effects; using Nernst-Ettinghausen effects

Abstract

The invention discloses an auxiliary vapor compression refrigeration system for semiconductor refrigeration driven by solar photovoltaic power generation. The auxiliary vapor compression refrigeration system comprises a common vapor compression refrigeration system body and a photovoltaic power generation driving semiconductor refrigeration system body which are coupled through a liquid accumulator; the photovoltaic power generation driving semiconductor refrigeration system body comprises a photovoltaic conversion device, the photovoltaic conversion device converts solar energy into electric energy, and the electric energy is output to serve as a direct current power source of a semiconductor refrigeration element; one end of the semiconductor refrigeration element is a cold end, the other end of the semiconductor refrigeration element is a hot end, and the cold end conducts heat exchange with intermediate medium water in the liquid accumulator; and the water in the liquid accumulator and refrigerants at an outlet of a condenser in the common vapor compression refrigeration system body are subjected to head exchange in a tube-shell type heat exchanger, the water passes through the shell pass, and the refrigerants pass through the tube pass, so that the refrigerants reach a supercooled state. According to the auxiliary vapor compression refrigeration system, the refrigerating capacity of the system is increased so that the purposes of improving the system energy efficiency ratio and reducing system energy consumption can be achieved.

Description

Solar energy power generating drives the auxiliary steam compression refrigerating system of semiconductor refrigerating

Technical field

The present invention relates to refrigeration technology field, and in particular to solar energy power generating drives the auxiliary steam of semiconductor refrigerating Compression refrigerating system.

Background technology

Today's society, fossil fuel faces exhaustion, and energy crisis is increasingly serious, and finding suitable alternative energy source turns into one Important epoch problem.Solar energy is that the generally acknowledged following mankind are most suitable, most safe, most green, optimal alternative energy source it One, have the advantages that to take conveniently, energy is huge, pollution-free, security is good.In addition, there is thermoelectric cooling mode mechanical to transport Dynamic component, compressor-free, do not use refrigerant, compact conformation, easy to control, noiseless, pollution-free, long service life etc. unique Advantage, is widely used in the instrument and equipments such as military affairs, space flight, the energy, microelectronics, opto-electronic device and industry and commerce product.

But existing solar energy power generating drives semiconductor refrigerating technology, if used separately as refrigeration system , there is inefficiency in words, and with it is unstable caused by the availability change of photovoltaic the problems such as, be not suitable as independent refrigeration System is used.

The content of the invention

To solve the deficiency that prior art is present, the auxiliary of semiconductor refrigerating is driven the invention discloses solar energy power generating Helping vapor compression refrigeration system, the electrical energy drive semiconductor refrigerating element that the present invention is produced using solar energy power generating makes half Conductor element cold end produces cold, and cold is used, and the temperature of intermediate medium is controlled by reservoir, and makes middle Jie Matter exchanges heat with the refrigerant of condensator outlet in heat exchanger, so that refrigerant reaches supercooled state, increases the refrigeration of system Amount.

To achieve the above object, concrete scheme of the invention is as follows:

Solar energy power generating drives the auxiliary steam compression refrigerating system of semiconductor refrigerating, including:By reservoir phase The conventional steam compression refrigerating system and photovoltaic generation of coupling drive semiconductor refrigeration system;

The photovoltaic generation drives the semiconductor refrigeration system to include photovoltaic conversion device, and the photovoltaic conversion device is by the sun Electric energy can be converted into, electric energy is exported as the dc source of semiconductor refrigerating element, and one end of the semiconductor refrigerating element is Cold end, the other end is hot junction, and cold end exchanges heat in reservoir with intermediate medium water, water and conventional steam the compression system in reservoir The refrigerant of the condensator outlet in cooling system exchanges heat in shell-and-tube heat exchanger, and water walks shell side, and refrigerant walks tube side, so that Refrigerant reaches supercooled state.

Further, the present invention also uses following technical scheme:The semiconductor refrigerating element is by some coupled to thermoelectricity Pick up to constitute, thermocouple to being made up of P-type semiconductor element and N-type semiconductor element, when dc source connect, semiconductor system The sense of current of the one end of cold element 9 is n-p, and temperature is reduced, and is absorbed heat, and forms cold end;The semiconductor refrigerating element other end The sense of current is p-n, and temperature rises, and heat release, forms hot junction.

Further, the present invention also uses following technical scheme:The wind that the hot junction of the semiconductor refrigerating element is provided with Fan radiating module;

It has the effect that:The work of fan heat radiation module fan is realized to the timely of the hot junction of semiconductor refrigerating element Radiating, is easy to semiconductor refrigerating element to keep more preferable working condition.

Further, the present invention also uses following technical scheme:The cold end of the semiconductor refrigerating element is provided with soaking Plate and enhanced heat exchange fin, soaking plate are connected with enhanced heat exchange fin, wherein, soaking plate is changed in reservoir with intermediate medium water Heat.

It has the effect that:The hot junction of semiconductor refrigerating element is constantly radiated, and keeps certain temperature, soaking plate to put Enter heat absorption in reservoir, and have enhanced heat exchange fin enhanced heat exchange in soaking plate, make coolant-temperature gage reduction in reservoir.

Further, the present invention also uses following technical scheme:The conventional steam compression refrigerating system includes evaporator, The saturated gas of evaporator outlet, into compressor, is compressed wherein, and temperature is raised, pressure rise, subsequently into condenser In, it is condensed wherein, pressure is constant, temperature reduction, and condenser is flowed out with saturated liquid state, absorbs cold in heat exchanger Amount, becomes subcooled liquid, and outflow heat exchanger, subcooled liquid is throttled in choke valve, pressure reduction, becomes biphase gas and liquid flow Body, gas-liquid two-phase fluid enters in evaporator and absorbs heat, and temperature is raised, and evaporator is flowed out with saturated gas state.

It has the effect that:Conventional steam compression refrigerating system is realized absorbing cold in heat exchanger, becomes supercooled liquid Body, is conducive to the refrigerating capacity of increase system.

Further, the present invention also uses following technical scheme:Pump is provided between the reservoir and heat exchanger.

It has the effect that:Realize for the water of reservoir being delivered to heat exchanger in the form of pump, mode is simple, safety Reliable, efficiency is higher.

Further, the present invention also uses following technical scheme:When solar irradiation is sufficient, the energy that solar energy is produced It is many, cause dc source intensifying current, so that the cold that semiconductor element is produced is more, unnecessary cold is to be stored in reservoir In water in;When solar irradiation is weaker, the energy that semiconductor element is produced is less, by the adjustment effect of pump, makes more Cold water is supplemented in conventional steam compression refrigerating system, it is ensured that the relative constancy of cooling fluid temperature in heat exchanger.

It has the effect that:Water in reservoir plays a part of energy stores simultaneously, more efficiently utilizes the sun Energy.

Further, the present invention also uses following technical scheme:The water walks shell side, and refrigerant walks tube side, i.e. refrigerant Heat exchange Bottomhole pressure inside heat exchanger, water is flowed outside heat exchanger tube, water and refrigerant countercurrent flow, and baffling is set in heat exchanger Plate, deflection plate is to be installed in the pipe external space, plays the notched thin plate of support heat exchanger tube and reinforcing extratubal fluid heat exchange, folding Stream plate can improve the flow velocity of water and increase the turbulivity of water, so that refrigerant fully absorbs the cold in water.

It has the effect that:Shell side is walked using above-mentioned water, the mode that refrigerant walks tube side carries out energy exchange, Neng Gouti The efficiency of high-energy transmission.

Further, the present invention also uses following technical scheme:The heat exchanger changes formula or other any forms for plate The high efficient heat exchanging that can realize water and refrigerant heat exchanger.

Beneficial effects of the present invention:

The electrical energy drive semiconductor refrigerating element that the present invention is produced using solar energy power generating, makes semiconductor element cold end Cold is produced, and cold is used, the temperature of intermediate medium is controlled by reservoir, and intermediate medium is gone out with condenser The refrigerant of mouth exchanges heat in heat exchanger, so that refrigerant reaches supercooled state, increases the refrigerating capacity of system, to reach raising Systematic energy efficiency ratio, reduces the vapor compression refrigeration system of system energy consumption purpose.

Brief description of the drawings

Fig. 1 fundamental diagrams of the invention;

In figure, 1 compressor, 2 condensers, 3 heat exchangers, 4 reservoirs, 5 choke valves, 6 evaporators, 7 pumps, 8 soaking plates, 9 half Conductor cooling module, 10 hot-side heat dissipation modules, 11 dc sources, 12 enhanced heat exchange fins, 13 deflection plates, 14 shell-sides, 15 tube sides.

Specific embodiment:

It is noted that described further below is all exemplary, it is intended to provide further instruction to the application.Unless another Indicate, all technologies used herein and scientific terminology are with usual with the application person of an ordinary skill in the technical field The identical meanings of understanding.

It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative Be also intended to include plural form, additionally, it should be understood that, when in this manual use term "comprising" and/or " bag Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.

The present invention is described in detail below in conjunction with the accompanying drawings:

The present invention provides a kind of conventional steam compression refrigerating system and photovoltaic generation drives the coupling of semiconductor refrigeration system System, the degree of supercooling of the refrigerant using semiconductor refrigerating module reduction vapor compression refrigeration system from condenser out, increases System cold, improves system energy efficiency.The present invention can be as effectively using the one of solar energy power generating driving semiconductor refrigerating The mode of kind.

The saturated gas of the outlet of evaporator 6, into compressor 1, is compressed wherein, and temperature is raised, pressure rise.Then Into in condenser 2, it is condensed wherein, pressure is constant, temperature reduction flows out condenser with saturated liquid state.In heat exchange Cold is absorbed in device 3, becomes subcooled liquid, outflow heat exchanger.Subcooled liquid is throttled in choke valve 5, pressure reduction, becomes Gas-liquid two-phase fluid.Gas-liquid two-phase fluid enters in evaporator 6 and absorbs heat, and temperature is raised, and is flowed out with saturated gas state and steamed Hair device, into compressor, so circulation.

Using photovoltaic conversion device, electric energy is converted solar energy into, electric energy is exported as the direct current of semiconductor refrigerating element Power supply 11.

The fan heat radiation module 10 that the hot junction of semiconductor refrigerating element is provided with;The work of the fan of fan heat radiation module 10 The timely radiating to the hot junction of semiconductor refrigerating element is realized, is easy to semiconductor refrigerating element to keep more preferable working condition.

Semiconductor refrigerating element 9 is made up of some being coupled together to thermocouple, and thermocouple is to by P-type semiconductor element and N Type semiconductor element is constituted, and when dc source is connected, the sense of current of the one end of semiconductor refrigerating element 9 is n-p, and temperature is reduced, And absorb heat, form cold end;The sense of current of the semiconductor refrigerating element other end is p-n, and temperature rises, and heat release, is formed Hot junction.

When dc source 11 connects 9 both positive and negative polarity of semiconductor refrigerating element, the reduction of the temperature of soaking plate 8, and absorb heat;Hot junction Radiator temperature rises, and heat release.So the hot junction of semiconductor refrigerating element is set constantly to radiate, and keep certain temperature, Soaking plate 8 is absorbed heat in being put into reservoir, and has the enhanced heat exchange of enhanced heat exchange fin 12 in soaking plate 8, makes water temperature in reservoir Degree is reduced.

The soaking plate 8 of the cold end of semiconductor refrigerating element 9 exchanges heat in reservoir 4 with intermediate medium water, the water in reservoir Can effectively store and transmit the cold of cold end.When solar irradiation is sufficient, the energy that solar energy is produced is more, causes electric current to increase By force, so that the cold that produces of semiconductor element is more, during unnecessary cold is the water being stored in reservoir;When solar irradiation compared with When weak, the cold that semiconductor is produced is less, and the adjustment effect of the pump 7 by being set between reservoir 4 and heat exchanger 3 makes more Cold water be supplemented in system, it is ensured that the relative constancy of cooling fluid temperature in heat exchanger.Water in reservoir can balance solar irradiation The uneven unstability brought is penetrated, so that operating mode is more stablized.

The refrigerant of water and condenser 2 outlet in reservoir 4 exchanges heat in shell-and-tube heat exchanger, in shell-and-tube heat exchanger Deflection plate 13 is provided with, shell-and-tube heat exchanger is divided into shell-side 14 and tube side 15.Water walks shell side, and refrigerant walks tube side, i.e. refrigerant Heat exchange Bottomhole pressure inside heat exchanger, water is flowed outside heat exchanger tube, water and refrigerant countercurrent flow, and baffling is set in heat exchanger Plate, deflection plate is to be installed in the pipe external space, plays the notched thin plate of support heat exchanger tube and reinforcing extratubal fluid heat exchange, folding Stream plate can improve the flow velocity of water and increase the turbulivity of water, so that refrigerant fully absorbs the cold in water, improve refrigerant Using the efficiency of cold, the Energy Efficiency Ratio of system is further improved.

Heat exchanger 3 can also be board-like or other any type of heat exchangers, as long as water and refrigerant can be realized High efficient heat exchanging.Water in reservoir 4 can also be other media, such as ethylene glycol, glycerin solution.

Although above-mentioned be described with reference to accompanying drawing to specific embodiment of the invention, not to present invention protection model The limitation enclosed, one of ordinary skill in the art should be understood that on the basis of technical scheme those skilled in the art are not Need the various modifications made by paying creative work or deformation still within protection scope of the present invention.

Claims (10)

1. solar energy power generating drives the auxiliary steam compression refrigerating system of semiconductor refrigerating, it is characterized in that, photovoltaic Generate electricity and drive the auxiliary steam compression refrigerating system of semiconductor refrigerating, including:The conventional steam being coupled by reservoir is compressed Refrigeration system and photovoltaic generation drive semiconductor refrigeration system;
The photovoltaic generation driving semiconductor refrigeration system includes photovoltaic conversion device, and the photovoltaic conversion device turns solar energy Change electric energy into, electric energy is exported as the dc source of semiconductor refrigerating element, and one end of the semiconductor refrigerating element is cold end, The other end is hot junction, and cold end exchanges heat in reservoir with intermediate medium water, water and conventional steam compression the refrigeration system in reservoir The refrigerant of the condensator outlet in system exchanges heat in shell-and-tube heat exchanger, and water walks shell side, and refrigerant walks tube side, so that refrigeration Agent reaches supercooled state.
2. solar energy power generating as claimed in claim 1 drives the auxiliary steam compression refrigerating system of semiconductor refrigerating, its Be characterized in that the semiconductor refrigerating element is made up of some being coupled together to thermocouple, thermocouple to by P-type semiconductor element and N-type semiconductor element is constituted, and when dc source is connected, the sense of current of semiconductor refrigerating element one end is n-p, and temperature is reduced, And absorb heat, form cold end;The sense of current of the semiconductor refrigerating element other end is p-n, and temperature rises, and heat release, is formed Hot junction.
3. solar energy power generating as claimed in claim 2 drives the auxiliary steam compression refrigerating system of semiconductor refrigerating, its It is characterized in, the fan heat radiation module that the hot junction of the semiconductor refrigerating element is provided with.
4. solar energy power generating as claimed in claim 1 drives the auxiliary steam compression refrigerating system of semiconductor refrigerating, its It is characterized in that the cold end of the semiconductor refrigerating element is provided with soaking plate and enhanced heat exchange fin, soaking plate and enhanced heat exchange rib Piece is connected, wherein, soaking plate exchanges heat in reservoir with intermediate medium water.
5. solar energy power generating as claimed in claim 1 drives the auxiliary steam compression refrigerating system of semiconductor refrigerating, its It is characterized in that the conventional steam compression refrigerating system includes evaporator, the saturated gas of evaporator outlet, into compressor, Wherein compressed, temperature raise, pressure rise, subsequently into condenser in, be condensed wherein, pressure is constant, temperature reduction, Condenser is flowed out with saturated liquid state, cold is absorbed in heat exchanger, become subcooled liquid, outflow heat exchanger, subcooled liquid It is throttled in choke valve, pressure reduction becomes gas-liquid two-phase fluid, gas-liquid two-phase fluid enters in evaporator and absorbs heat, Temperature is raised, and evaporator is flowed out with saturated gas state.
6. solar energy power generating as claimed in claim 1 drives the auxiliary steam compression refrigerating system of semiconductor refrigerating, its It is characterized in be provided with pump between the reservoir and heat exchanger.
7. solar energy power generating as claimed in claim 1 drives the auxiliary steam compression refrigerating system of semiconductor refrigerating, its It is characterized in that, when solar irradiation is sufficient, the energy that solar energy is produced is more, causes dc source intensifying current, so that semiconductor The cold that element is produced is more, during unnecessary cold is the water being stored in reservoir.
8. solar energy power generating as claimed in claim 1 drives the auxiliary steam compression refrigerating system of semiconductor refrigerating, its It is characterized in that, when solar irradiation is weaker, the energy that semiconductor element is produced is less, by the adjustment effect of pump, makes more cold Water is supplemented in conventional steam compression refrigerating system, it is ensured that the relative constancy of cooling fluid temperature in heat exchanger.
9. solar energy power generating as claimed in claim 1 drives the auxiliary steam compression refrigerating system of semiconductor refrigerating, its It is characterized in that the water walks shell side, refrigerant walks the heat exchange Bottomhole pressure of tube side, i.e. refrigerant inside heat exchanger, and water is in heat exchange The outer flowing of pipe, water and refrigerant countercurrent flow, set deflection plate in heat exchanger, deflection plate is to be installed in the pipe external space, play support and change Heat pipe and the notched thin plate of reinforcing extratubal fluid heat exchange effect, deflection plate can improve the flow velocity of water and increase the turbulent flow of water Degree, so that refrigerant fully absorbs the cold in water.
10. solar energy power generating as claimed in claim 1 drives the auxiliary steam compression refrigerating system of semiconductor refrigerating, its It is characterized in that the heat exchanger changes the heat exchange of formula or other any type of high efficient heat exchangings that can realize water and refrigerant for plate Device.
CN201710082746.5A 2017-02-16 2017-02-16 Auxiliary vapor compression refrigeration system for semiconductor refrigeration driven by solar photovoltaic power generation CN106679229A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107270577A (en) * 2017-07-27 2017-10-20 天津商业大学 The additional supercooling circulatory system of carbon dioxide refrigeration semiconductor generating

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CN205174944U (en) * 2015-12-05 2016-04-20 广东志高空调有限公司 Thermoelectric cooling system of air conditioner condenser subcooling section
CN105737439A (en) * 2016-03-28 2016-07-06 广东志高空调有限公司 Air conditioner system utilizing solar energy and thermoelectricity supercooling device

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Publication number Priority date Publication date Assignee Title
CN2268902Y (en) * 1996-01-04 1997-11-26 青岛三斯自动控制工程公司 Semiconductory cooling and warming apparatus with water circulating radiation
US6351950B1 (en) * 1997-09-05 2002-03-05 Fisher & Paykel Limited Refrigeration system with variable sub-cooling
KR20100037446A (en) * 2008-10-01 2010-04-09 엘지전자 주식회사 Air conditioner
CN203274399U (en) * 2013-04-27 2013-11-06 中国石油大学(华东) Solar semiconductor car refrigerator
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Publication number Priority date Publication date Assignee Title
CN107270577A (en) * 2017-07-27 2017-10-20 天津商业大学 The additional supercooling circulatory system of carbon dioxide refrigeration semiconductor generating

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Application publication date: 20170517