CN105352220A - Solar energy and heat pump combined temperature control system and working method thereof - Google Patents
Solar energy and heat pump combined temperature control system and working method thereof Download PDFInfo
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- CN105352220A CN105352220A CN201510881065.6A CN201510881065A CN105352220A CN 105352220 A CN105352220 A CN 105352220A CN 201510881065 A CN201510881065 A CN 201510881065A CN 105352220 A CN105352220 A CN 105352220A
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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
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
- F25B29/003—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the compression type system
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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
- F25B27/00—Machines, plants or systems, using particular sources of energy
- F25B27/002—Machines, plants or systems, using particular sources of energy using solar energy
- F25B27/005—Machines, plants or systems, using particular sources of energy using solar energy in compression type systems
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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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
Abstract
The invention discloses a solar energy and heat pump combined temperature control system and relates to a temperature control system for achieving a heating function and a refrigerating function at any time and a working method of the temperature control system. According to the solar energy and heat pump combined temperature control system and the working method thereof, the real-time heat collecting function and the real-time refrigerating function can be achieved, modular assembly can be conducted, energy consumption is low, the use cost is low, and using is convenient. The solar energy and heat pump combined temperature control system comprises a solar system, an energy storage system and a heat pump system, wherein the solar system is used for heat collection and refrigeration, the energy storage system is used for storing heat energy and cold energy, and the heat pump system is used for heat collection and refrigeration. The solar system comprises a plurality of solar heat collectors and a circulating pump, wherein the solar heat collectors have the heat collecting function and the refrigerating function and are connected in series. Heat exchange working medium outlets of the solar heat collectors are further connected with a heat storage module in the energy storage system. Heat exchange working medium inlets of the solar heat collectors are further connected with a cold storage module in the energy storage module. The heat pump system comprises a storage liquid filtering module, a second air heat exchanger, a compressor and a valve bank.
Description
Technical field
The present invention relates to a kind of temperature control system, particularly relating to a kind of solar energy for realizing having at any time thermal-arrest and refrigeration dual-use function and heat pump combined temp control system and method for work thereof.
Background technology
At present, be that solar thermal collector and the system of heat collecting element is mainly used in solar energy heating with complete glass vacuum sun thermal-collecting tube, technology is comparatively ripe, is widely used in low-temperature solar energy heat utilization product aspect, forms the market scale of annual value of production nearly hundred billion.But adopt same solar pipe, or solar thermal collector, make full use of solar energy, the technology and the product research that realize thermal-arrest and refrigerating functions are also little.The existing design being realized thermal-arrest and refrigerating functions by a solar pipe, or structure is too complicated, batch machining difficulty is large, or with high costs and cannot meet market-oriented demand.And existing solar thermal collector mostly is and is used alone, there is no energy-storage system, there is during use certain limitation, do not form modular product, more do not form the commercial application of system.Independent employing heat pump can realize refrigeration and heat-production functions, but General System is only limitted to separate refrigeration or independent heat-production functions, and energy consumption is comparatively large, cannot make full use of low ebb electricity price and realize low cost movement.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind ofly to be had real-time thermal-arrest and refrigerating functions, can carry out modularization assembling, power consumption and use cost solar energy low, easy to use and heat pump combined temp control system and method for work thereof.
Solar energy of the present invention and heat pump combined temp control system, comprise the solar energy system for thermal-arrest and refrigeration, for storing the energy-storage system of heat energy and cold energy and the heat pump for thermal-arrest and refrigeration, described solar energy system comprises the solar thermal collector with thermal-arrest and refrigerating functions of multiple series connection, solar thermal collector after series connection has a heat-exchange working medium entrance and a heat-exchange working medium outlet, described heat-exchange working medium outlet is connected with pump entry, circulating-pump outlet is connected with heat-exchange working medium entrance, described heat-exchange working medium outlet is also connected with the heat accumulation module in energy-storage system, described heat accumulation module comprises the first heat exchange coil, second heat exchange coil and heat accumulating, the entrance and exit of described first heat exchange coil connects the entrance of heat-exchange working medium outlet and circulating pump respectively, 4th valve is installed between the outlet of the first heat exchange coil and the entrance of circulating pump, described heat-exchange working medium entrance is also connected with the cold module of the storage in energy-storage system, the cold module of described storage comprises first and changes cooling coil, second changes cooling coil and storage cold material, described first entrance and exit changing cooling coil connects circulation delivery side of pump and heat-exchange working medium entrance respectively, 6th valve is installed between the entrance of the first heat exchange coil and circulation delivery side of pump, described second heat exchange coil and second changes cooling coil and is connected in heat pump, described heat pump comprises liquid storage filtering module, the entrance and exit of described liquid storage filtering module changes cooling coil respectively outlet with second is connected with the entrance of the second heat exchange coil, and the 9th valve is installed between the entrance of the outlet of liquid storage filtering module and the second heat exchange coil, between the outlet that the entrance of liquid storage filtering module and second changes cooling coil, the 8th valve is installed, second outlet of changing cooling coil is also connected with the entrance of the second air heat exchanger, second changes between the outlet of cooling coil and the entrance of the second air heat exchanger and is provided with the tenth valve, the outlet of the second air heat exchanger is all connected with the entrance of compressor with the outlet of described second heat exchange coil, 12 valve is installed between the outlet of the second air heat exchanger and the entrance of compressor, the outlet of compressor is connected with the second entrance changing cooling coil, the outlet of described second air heat exchanger is also connected with the entrance of liquid storage filtering module, between the outlet of the second air heat exchanger and the entrance of liquid storage filtering module, the 13 valve is installed, the outlet of described liquid storage filtering module is also connected with the entrance of the second air heat exchanger, between the outlet of liquid storage filtering module and the entrance of the second air heat exchanger, the 11 valve is installed.
Solar energy of the present invention and heat pump combined temp control system, between wherein said heat-exchange working medium outlet and pump entry, the first valve is installed, 3rd valve is installed between circulating-pump outlet and heat-exchange working medium entrance, between circulation delivery side of pump and the 3rd valve, the first air heat exchanger is installed, be provided with the second valve between the entrance of described first air heat exchanger and circulation delivery side of pump, outlet and the circulation delivery side of pump two ends of the first air heat exchanger have been installed in parallel the 5th valve.
Solar energy of the present invention and heat pump combined temp control system, wherein said liquid storage filtering module comprises fluid reservoir and filter, the outlet of described fluid reservoir is connected with the entrance of filter, the outlet of filter is also connected with the 7th valve, wherein the entrance of fluid reservoir is as the entrance of liquid storage filtering module, and the outlet of the 7th valve is as the outlet of liquid storage filtering module.
Solar energy of the present invention and heat pump combined temp control system, wherein said solar thermal collector comprises pipe support, header is placed with above pipe support, header comprises shell and inner bag, heat-exchange working medium is filled with in described inner bag, the inner bag left and right sides is respectively arranged with heat-exchange working medium import and heat-exchange working medium outlet, described pipe support horizontally there is multiple solar pipe, described solar pipe comprises interior pipe and is sleeved on the cover glass tube outside interior pipe, condenser pipe is provided with above interior pipe, vacuum cavity in wherein being formed between condenser pipe and interior pipe, outer vacuum cavity is formed between interior pipe and cover glass tube, interior vacuum cavity inwall is fixed with horizontally disposed toroidal membrane, described toroidal membrane is fixed on the top of interior vacuum cavity, toroidal membrane is provided with choke tube, the axis of described choke tube and the axis parallel of interior pipe, thermal-arrest working medium is provided with bottom interior vacuum cavity, inner tube outer surface is coated with coating for selective absorption, the condenser pipe on described solar pipe top extend in the inner bag of header.
Solar energy of the present invention and heat pump combined temp control system, be filled with cycle fluid in each bar pipeline of wherein said heat pump, described cycle fluid selects R134a, water, anti-icing fluid, freon or conduction oil.
Solar energy of the present invention and heat pump combined temp control system, wherein said heat accumulation module also comprises heating coil pipe, and described heating coil pipe is connected with for hot interface.
Solar energy of the present invention and heat pump combined temp control system, the cold module of wherein said storage also comprises for cooling coil, and the described cooling coil that supplies is connected with cooling interface.
Solar energy of the present invention and heat pump combined temp control system, wherein said storage cold material selects water or phase change paraffin.
Solar energy of the present invention and heat pump combined temp control system, wherein said heat accumulating selects water, oil, anti-icing fluid, phase change paraffin or fused salt.
The method of work of solar energy of the present invention and heat pump combined temp control system: preferentially use solar energy system, when there being solar irradiation, utilize the heat collection function of solar thermal collector to the heat accumulation module heating in energy-storage system, when there is no solar irradiation, utilize the refrigerating function of solar thermal collector to the cold module cooling of the storage in energy-storage system, when solar energy system can not meet instructions for use, enable heat pump, for not arriving the heat accumulation module of serviceability temperature or storing up cold module and provide heat or cold.
Solar energy of the present invention and heat pump combined temp control system difference from prior art are that solar energy of the present invention and heat pump combined temp control system have the difunctional of thermal-arrest and refrigeration, by solar energy system and heat pump two-part structure, heat accumulation module in real-time adjustment energy-storage system and the temperature of Chu Leng module, ensure that energy-storage system is in design temperature all the time.Solar energy system in solar energy of the present invention and heat pump combined temp control system adopts the solar pipe with thermal-arrest and refrigerating functions, under the prerequisite making full use of solar energy, also can have good refrigeration when not having enough sunlight.The heat of solar energy system and cold are sent to heat accumulation module and Chu Leng module respectively by system pipeline.When solar energy system cannot meet the temperature requirement of energy-storage system, the heat pump with thermal-arrest and refrigerating functions is taked to carry out thermal-arrest and refrigeration.Heat pump in the present invention, by the design of valve group and pipeline, achieves the independent control of heat accumulation module and Chu Leng module simply efficiently and unifiedly to control.When heat accumulation module and Chu Leng module all do not arrive design temperature, heat pump can directly allow storage cold module in unnecessary heat carry to heat accumulation module, after having one to reach design temperature in heat accumulation module and Chu Leng module, heat pump can change the break-make of valve, start the second air heat exchanger, independent adjustment does not reach the module of design temperature, until heat accumulation module and Chu Leng module all reach design temperature.
Solar energy of the present invention and heat pump combined temp control system take solar energy system and the heat pump with thermal-arrest and refrigerating functions simultaneously, respectively energy-storage system is carried out to the supplementary in real time and adjustment of heat and cold, use very convenient, and preferentially use solar energy system, reduce the consumption of the energy, simultaneously when heat accumulation module and Chu Leng module all do not arrive design temperature, heat pump can allow energy priority unnecessary in heat accumulation module and Chu Leng module utilize, all the time two air heat exchangers need not be relied on to regulate, can effectively reduce energy consumption and use cost.
The present invention takes full advantage of the refrigeration of solar energy and heats difunctional feature, maximizedly make use of solar energy.Maximized refrigeration and the heat-production functions optimizing heat pump, thus make the COP value of heat pump reach maximization.By storing up the setting of cold module and heat accumulation module, making system can make full use of low ebb electricity price and realize refrigeration and heat, and realizing in real time for cold-peace heat supply.Said system design can be widely used in compound-refrigerating, heating needs in civilian, commercial Application, especially for the concentrated heat such as family expenses, hotel, agricultural, with cold place, system is especially applicable to realization across cold-storage and accumulation of heat use in season.
Below in conjunction with accompanying drawing, solar energy of the present invention and heat pump combined temp control system and method for work thereof are described further.
Accompanying drawing explanation
Fig. 1 is the structural representation of solar thermal collector in solar energy of the present invention and heat pump combined temp control system;
Fig. 2 is the structural representation of solar pipe in solar energy of the present invention and heat pump combined temp control system;
Fig. 3 is the systematic schematic diagram of solar energy of the present invention and heat pump combined temp control system.
Detailed description of the invention
As shown in Figure 3, solar energy of the present invention and heat pump combined temp control system comprise solar energy system, energy-storage system and heat pump.Solar energy system comprises the solar thermal collector 21 of three series connection, and as shown in Figure 1, solar thermal collector 21 comprises pipe support 1, comprise above pipe support 1 and be placed with header 6, header 6 length-width ratio is 5:1 ~ 20:1, and header 6 comprises shell and inner bag 7, is heat-insulation layer 5 between shell and inner bag 7.Being provided with temperature sensor 8 in inner bag 7, for detecting the temperature in inner bag 7 in real time, being also filled with heat-exchange working medium in inner bag 7, heat-exchange working medium is water or glycol water.Inner bag 7 left and right sides is respectively arranged with heat-exchange working medium import 4 and heat-exchange working medium outlet 9.Pipe support 1 horizontally there is multiple solar pipe 2.As shown in Figure 2, the top of solar pipe 2 extend in the inner bag 7 of header 6 by the through hole bottom header 6, be provided with sealing ring 3 below the contact surface of the inner bag 7 of solar pipe 2 and header 6, below the contact surface of solar pipe 2 and header 6 shell, be provided with wind loop 10.As shown in Figure 2, the cover glass tube 17 that solar pipe 2 comprises interior pipe 16 and is sleeved on outside interior pipe 16, condenser pipe 13 is provided with above interior pipe 16, interior pipe 16 and condenser pipe 13 can select glass, as high-boron-silicon glass, or metal material, as copper or stainless steel, wherein condenser pipe 13 is arranged in the inner bag 7 of header 6.The interface sealing of condenser pipe 13, interior pipe 16 and cover glass tube 17 forms ring seal mouth, and vacuum cavity 11 in wherein being formed between condenser pipe 13 and interior pipe 16, in interior vacuum cavity 11, pressure is less than 5.0x10
-3pa, forms outer vacuum cavity 12 between interior pipe 16 and cover glass tube 17.Interior vacuum cavity 11 inwall adopts sealing by fusing, bonding or mechanical connection manner is fixed with horizontally disposed toroidal membrane 15.Toroidal membrane 15 is fixed on the top of interior vacuum cavity 11, and toroidal membrane 15 is positioned at above or below ring seal mouth with the junction of interior vacuum cavity 11, and is not more than 400mm apart from the distance of ring seal mouth, is convenient to install.Toroidal membrane 15 is provided with the choke tube 14 that vertical direction is arranged, the axis of choke tube 14 and the axis parallel of interior pipe 16, the range difference of choke tube about 14 two ends distance toroidal membrane 15 is not more than 3/4 of choke tube 14 length, the excessive easy stability affecting choke tube 14 and install of range difference, and then affect resistance flowing effect.The selective absorber coatings (not shown) of interior pipe 16 outer surface, coating for selective absorption selects AL-N/AL coating or SS-ALN/cu coating.Be provided with thermal-arrest working medium 18 bottom interior vacuum cavity 11, thermal-arrest working medium 18 selects mass ratio to be the lithium bromide-water mixed solution of 0.1:1.0 ~ 1.0:0.1, also can select solidliquid mixture, if mass ratio is the Zeolite-water mixture of 0.5:2 ~ 2:0.5.The volume of thermal-arrest working medium 18 and the volume ratio of interior vacuum cavity 11 are 0.01 ~ 0.5:1.Be provided with support 19 in outer vacuum cavity 12, support 19 is in vertical direction all the time for keeping interior pipe 16, and support 19 is also placed with getter 20.After equipment use a period of time, the vacuum in outer vacuum cavity 12 will decline, and getter 20 routinely can adsorb the gas in outer vacuum cavity 12, ensures that the vacuum in outer vacuum cavity 12 is constant.
As shown in Figure 3, three solar thermal collectors 21 in the present embodiment have a heat-exchange working medium entrance and a heat-exchange working medium outlet after connecting.Heat-exchange working medium outlet connects the entrance of circulating pump 26, is provided with the first valve 27 between heat-exchange working medium outlet and the entrance of circulating pump 26.The outlet of circulating pump 26 connects the entrance of the first air heat exchanger 24, is provided with the second valve 25 between the outlet of circulating pump 26 and the entrance of the first air heat exchanger 24.The outlet that the import and export two ends of the first air heat exchanger 24 have been installed in parallel the 5th valve 28, first air heat exchanger 24 also connects heat-exchange working medium entrance, is provided with the 3rd valve 22 between the outlet of the first air heat exchanger 24 and heat-exchange working medium entrance.
Energy-storage system comprises heat accumulation module 31 and Chu Leng module 51.Heat accumulation module 31 has the first heat exchange coil 30 and the second heat exchange coil 34.First heat exchange coil 30 is connected between heat-exchange working medium outlet and the entrance of circulating pump 26, and is provided with the 4th valve 29 between the first heat exchange coil 30 and circulating pump 26.First heat exchange coil 30 and the second heat exchange coil 34 are heat accumulating 33 heat exchange of heat accumulation module 31 inside, heat accumulating 33 selects water, also can be oil, anti-icing fluid, phase change paraffin or fused salt, heat accumulating 33 is by heating coil pipe 32 with for hot interface 35 externally heat supply.Store up cold module 51 to have first and change cooling coil 52 and second and change cooling coil 48.First changes cooling coil 52 is connected between the outlet of heat-exchange working medium entrance and the first air heat exchanger 24, and first changes between cooling coil 52 and the first air heat exchanger 24 and be provided with the 6th valve 23.First changes cooling coil 52 and second, and to change cooling coil 48 be that the storage cold material 49 storing up cold module 51 inside changes cold, and storage cold material 49 selects water, also can be phase change paraffin, and storage cold material 49 is by for cooling coil 50 and cooling interface 47 externally cooling.
Heat pump comprises compressor 41, second air heat exchanger 42, liquid storage filtering module and the valve group for control piper break-make, wherein liquid storage filtering module comprises the fluid reservoir 40, filter 38 and the 7th valve 37 that connect successively, the entrance of fluid reservoir 40 is as the entrance of liquid storage filtering module, and the outlet of the 7th valve 37 is as the outlet of liquid storage filtering module.Cycle fluid in heat pump pipeline selects R134a, also can select water, anti-icing fluid, freon or conduction oil.The outlet of compressor 41 to connect in the cold module 51 of storage the entrance that second changes cooling coil 48, and the second outlet of changing cooling coil 48 connects the entrance of liquid storage filtering module and the entrance of the second air heat exchanger 42 simultaneously.Second changes and to be provided with the 8th valve 46, the second between cooling coil 48 and liquid storage filtering module and to change between cooling coil 48 and the entrance of the second air heat exchanger 42 and be provided with the tenth valve 44.The outlet of liquid storage filtering module connects the entrance of the second heat exchange coil 34 in heat accumulation module 31, is provided with the 9th valve 36 between the outlet of liquid storage filtering module and the entrance of the second heat exchange coil 34.The outlet of the second heat exchange coil 34 is all connected with the entrance of compressor 41 with the outlet of the second air heat exchanger 42.Between the outlet of the second air heat exchanger 42 and the entrance of compressor 41, the 12 valve 39 is installed.The outlet of the second air heat exchanger 42 is also connected with the entrance of liquid storage filtering module, is provided with the 13 valve 45 between the outlet of the second air heat exchanger 42 and the entrance of liquid storage filtering module.The outlet of liquid storage filtering module is also connected with the entrance of the second air heat exchanger 42, is provided with the 11 valve 43 between the outlet of liquid storage filtering module and the entrance of the second air heat exchanger 42.
The operation principle of solar energy of the present invention and heat pump combined temp control system is: generally, System Priority starts solar energy system, when there being solar irradiation, the heat collection function of solar thermal collector 21 is utilized to heat to the heat accumulation module 31 in energy-storage system, when there is no solar irradiation, the refrigerating function of solar thermal collector 21 is utilized to lower the temperature to the cold module 51 of the storage in energy-storage system, when solar energy system can not meet instructions for use, enable heat pump, for not arriving the heat accumulation module 31 of serviceability temperature or storing up cold module 51 and provide heat or cold.Detailed process is as follows: when daytime, solar irradiation was better, solar thermal collector 21 obtains solar energy, when shining upon on the coating for selective absorption in solar pipe 2 outside pipe 16, coating for selective absorption on interior pipe 16 converts solar energy into heat energy, and the thermal-arrest working medium 18 in solar pipe 2 is heated, aqueous vapor in thermal-arrest working medium 18 turns to steam flows upward, enters condenser pipe 13 through choke tube 14.Now heat-exchange working medium import 4 enters heat-exchange working medium, is changed away by the heat on condenser pipe 13, realizes the heat collection function of solar thermal collector 21, reduces the temperature in condenser pipe 13 simultaneously.Steam in condenser pipe 13 meets the cold water that congeals into, and is deposited in condenser pipe 13.Thus, solar pipe 2 constantly absorbs solar energy, and continues heat exchange to heat-exchange working medium, realizes the lasting thermal-arrest of solar thermal collector 21.When solar thermal collector 21 temperature reaches design temperature, ON cycle pump 26, the 3rd valve 22, the 4th valve 29 and the 5th valve 28, close the first valve 27, second valve 25 and the 6th valve 23.By the first heat exchange coil 30, the heat accumulating 33 in heat accumulation module 31 is heated.After heat accumulating 33 is heated to design temperature, closes circulating pump 26, the 3rd valve 22, the 4th valve 29 and the 5th valve 28, complete solar heat collection function.When evening without solar irradiation time, solar thermal collector 21 utilizes solar pipe refrigeration characteristic, start refrigerating function.Now interior pipe 16 because of thermal capacitance lower, to empty radiation heat loss is comparatively large, temperature reduces.In interior pipe 16, low moisture thermal-arrest working medium 18, embodies the characteristic of cryogenic absorption steam, and the steam vapour amount in pipe is reduced.The condensed water retained in condenser pipe 13 constantly evaporates, and is adsorbed by the low moisture thermal-arrest working medium 18 bottom interior pipe 16.Absorb a large amount of heats during condensate evaporation, cause temperature in condenser pipe 13 to reduce, the heat of continuous absorption heat-exchange working medium, realizes the lasting refrigeration of solar thermal collector 21.When solar thermal collector 21 temperature reaches design temperature, ON cycle pump 26, first valve 27, the 5th valve 28 and the 6th valve 23, close the second valve 25, the 3rd valve 22 and the 4th valve 29.Change cooling coil 52 by first the storage cold material 49 in the cold module 51 of storage is freezed.When storage cold material 49 freezes after design temperature, close circulating pump 26, first valve 27, the 5th valve 28 and the 6th valve 23, complete solar refrigeration function.
Solar energy system, by the alternation of day and night, realizes the function of solar energy heating, heat accumulation and refrigeration, Chu Leng.But because refrigerating capacity and heating capacity are substantially equal, and with cold or be not etc. with heat, therefore, when with cold or by hot disequilibrium time, solar energy system can be caused to lose efficacy.Now need to start the first air heat exchanger 24 in solar energy system.When solar thermal collector 21 occurs overheated or excessively cold, ON cycle pump 26, first valve 27, second valve 25, first air heat exchanger 24 and the 3rd valve 22, by heat overheated in solar thermal collector 21 or excessively cold cold quantity transmission in air, until solar thermal collector 21 reaches design temperature.
Due to the unstability of solar energy, when the heat obtained by solar energy or cold are not enough to meet instructions for use, then need to start heat pump.When storing up cold module 51 and heat accumulation module 31 does not all reach design temperature, start heat pump.Open compressor 41, the 8th valve 46, fluid reservoir 40, filter 38, the 7th valve 37 and the 9th valve 36, other valves in shutoff valve group.Heat pump changes cooling coil 48 through second and obtains heat from the cold module 51 of storage, is supplied to heat accumulation module 31 through heat exchange coil, and realize the cold module 51 of storage and freeze, heat accumulation module 31 heats simultaneously.Until heat accumulation module 31 or store up cold module 51 and reach design temperature.When heat accumulation module 31 does not reach design temperature, and store up cold module 51 when reaching design temperature, heat pump is switched to air heat-exchange pattern.Open compressor 41, the tenth valve 44, second air heat exchanger the 42, the 13 valve 45, fluid reservoir 40, filter 38 and the 7th valve 37, other valve in shutoff valve group, heat pump obtains heat from air, realize continuing heat accumulation module 31 heat supply, until heat accumulation module 31 reaches design temperature.Now store up cold module 51 and be in low-temperature condition, flow through the second medium changing cooling coil 48 in the cold module 51 of storage and cannot extract heat from the cold module 51 of storage, therefore can not the temperature in the cold module 51 of storage be had an impact.When the cold module 51 of storage does not reach design temperature, and when heat accumulation module 31 reaches design temperature, heat pump also will be switched to air heat-exchange pattern.Open compressor 41, the 8th valve 46, fluid reservoir 40, filter 38, the 7th valve 37, drip 11 valves, the second air heat exchanger the 42 and the 12 valve 39, other valve in shutoff valve group, heat pump obtains cold from air, realize continuing cold module 51 cooling of storage, until reach the cold module 51 of storage to reach design temperature.
When external environment condition needs cooling, from storage cold material 49, obtain cold by the cooling coil 50 that supplies stored up in cold module 51, connect cooling interface 47 and realize cooling function.When external environment condition needs heat supply, from heat accumulating 33, obtain heat by the heating coil pipe 32 in heat accumulation module 31, connect and realize heat supply function for hot interface 35.
Above-described embodiment is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; the various distortion that those of ordinary skill in the art make technical scheme of the present invention and improvement, all should fall in protection domain that claims of the present invention determines.
Claims (10)
1. a solar energy and heat pump combined temp control system, it is characterized in that: comprise the solar energy system for thermal-arrest and refrigeration, for storing the energy-storage system of heat energy and cold energy and the heat pump for thermal-arrest and refrigeration, described solar energy system comprises the solar thermal collector (21) with thermal-arrest and refrigerating functions of multiple series connection, solar thermal collector (21) after series connection has a heat-exchange working medium entrance and a heat-exchange working medium outlet, described heat-exchange working medium outlet is connected with circulating pump (26) entrance, circulating pump (26) outlet is connected with heat-exchange working medium entrance, described heat-exchange working medium outlet is also connected with the heat accumulation module (31) in energy-storage system, described heat accumulation module (31) comprises the first heat exchange coil (30), second heat exchange coil (34) and heat accumulating (33), the entrance and exit of described first heat exchange coil (30) connects the entrance of heat-exchange working medium outlet and circulating pump (26) respectively, 4th valve (29) is installed between the outlet of the first heat exchange coil (30) and the entrance of circulating pump (26), described heat-exchange working medium entrance is also connected with the cold module of the storage in energy-storage system (51), the cold module of described storage (51) comprises first and changes cooling coil (52), second changes cooling coil (48) and storage cold material (49), described first entrance and exit changing cooling coil (52) connects outlet and the heat-exchange working medium entrance of circulating pump (26) respectively, 6th valve (23) is installed between the entrance of the first heat exchange coil (30) and the outlet of circulating pump (26), described second heat exchange coil (34) and second is changed cooling coil (48) and is connected in heat pump, described heat pump comprises liquid storage filtering module, the entrance and exit of described liquid storage filtering module changes cooling coil (48) respectively outlet with second is connected with the entrance of the second heat exchange coil (34), and the 9th valve (36) is installed between the entrance of the outlet of liquid storage filtering module and the second heat exchange coil (34), between the outlet that the entrance of liquid storage filtering module and second changes cooling coil (48), the 8th valve (46) is installed, second outlet of changing cooling coil (48) is also connected with the entrance of the second air heat exchanger (42), second changes between the outlet of cooling coil (48) and the entrance of the second air heat exchanger (42) and is provided with the tenth valve (44), the outlet of the second air heat exchanger (42) is all connected with the entrance of compressor (41) with the outlet of described second heat exchange coil (34), between the outlet of the second air heat exchanger (42) and the entrance of compressor (41), the 12 valve (39) is installed, the entrance that cooling coil (48) is changed in the outlet and second of compressor (41) is connected, the outlet of described second air heat exchanger (42) is also connected with the entrance of liquid storage filtering module, 13 valve (45) is installed between the outlet of the second air heat exchanger (42) and the entrance of liquid storage filtering module, the outlet of described liquid storage filtering module is also connected with the entrance of the second air heat exchanger (42), between the outlet of liquid storage filtering module and the entrance of the second air heat exchanger (42), the 11 valve (43) is installed.
2. solar energy according to claim 1 and heat pump combined temp control system, it is characterized in that: between described heat-exchange working medium outlet and circulating pump (26) entrance, the first valve (27) is installed, between circulating pump (26) outlet and heat-exchange working medium entrance, the 3rd valve (22) is installed, between the outlet of circulating pump (26) and the 3rd valve (22), the first air heat exchanger (24) is installed, between the entrance of described first air heat exchanger (24) and the outlet of circulating pump (26), the second valve (25) is installed, the outlet of the first air heat exchanger (24) and the outlet two ends of circulating pump (26) have been installed in parallel the 5th valve (28).
3. solar energy according to claim 1 and heat pump combined temp control system, it is characterized in that: described liquid storage filtering module comprises fluid reservoir (40) and filter (38), the outlet of described fluid reservoir (40) is connected with the entrance of filter (38), the outlet of filter (38) is also connected with the 7th valve (37), wherein the entrance of fluid reservoir (40) is as the entrance of liquid storage filtering module, and the outlet of the 7th valve (37) is as the outlet of liquid storage filtering module.
4. solar energy according to claim 1 and heat pump combined temp control system, it is characterized in that: described solar thermal collector (21) comprises pipe support (1), pipe support (1) top is placed with header (6), header (6) comprises shell and inner bag (7), described inner bag is filled with heat-exchange working medium in (7), inner bag (7) left and right sides is respectively arranged with heat-exchange working medium import (4) and heat-exchange working medium outlet (9), described pipe support (1) horizontally there is multiple solar pipe (2), described solar pipe (2) comprises interior pipe (16) and is sleeved on the cover glass tube (17) in interior pipe (16) outside, interior pipe (16) top is provided with condenser pipe (13), vacuum cavity (11) in wherein being formed between condenser pipe (13) and interior pipe (16), outer vacuum cavity (12) is formed between interior pipe (16) and cover glass tube (17), interior vacuum cavity (11) inwall is fixed with horizontally disposed toroidal membrane (15), described toroidal membrane (15) is fixed on the top of interior vacuum cavity (11), toroidal membrane (15) is provided with choke tube (14), the axis of described choke tube (14) and the axis parallel of interior pipe (16), interior vacuum cavity (11) bottom is provided with thermal-arrest working medium (18), the selective absorber coatings of interior pipe (16) outer surface, the condenser pipe (13) on described solar pipe (2) top extend in the inner bag (7) of header (6).
5. solar energy according to claim 1 and heat pump combined temp control system, is characterized in that: be filled with cycle fluid in each bar pipeline of described heat pump, described cycle fluid selects R134a, water, anti-icing fluid, freon or conduction oil.
6. solar energy according to claim 1 and heat pump combined temp control system, it is characterized in that: described heat accumulation module (31) also comprises heating coil pipe (32), described heating coil pipe (32) is connected with for hot interface (35).
7. solar energy according to claim 1 and heat pump combined temp control system, it is characterized in that: the cold module of described storage (51) also comprises for cooling coil (50), the described cooling coil (50) that supplies is connected with cooling interface (47).
8. solar energy according to claim 1 and heat pump combined temp control system, is characterized in that: described storage cold material (49) selects water or phase change paraffin.
9. solar energy according to claim 1 and heat pump combined temp control system, is characterized in that: described heat accumulating (33) selects water, oil, anti-icing fluid, phase change paraffin or fused salt.
10. a solar energy as claimed in claim 1 and heat pump combined temp control the method for work of system, it is characterized in that: preferentially use solar energy system, when there being solar irradiation, utilize the heat collection function of solar thermal collector (21) to heat accumulation module (31) heating in energy-storage system, when there is no solar irradiation, the refrigerating function of solar thermal collector (21) is utilized to lower the temperature to the cold module of the storage in energy-storage system (51), when solar energy system can not meet instructions for use, enable heat pump, for not arriving the heat accumulation module (31) of serviceability temperature or storing up cold module (51) and provide heat or cold.
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| CN201510881065.6A CN105352220A (en) | 2015-12-03 | 2015-12-03 | Solar energy and heat pump combined temperature control system and working method thereof |
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| CN201510881065.6A CN105352220A (en) | 2015-12-03 | 2015-12-03 | Solar energy and heat pump combined temperature control system and working method thereof |
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