CN102563973B - Novel solar air source heat pump system and hot water production method - Google Patents
Novel solar air source heat pump system and hot water production method Download PDFInfo
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- CN102563973B CN102563973B CN201210019182.8A CN201210019182A CN102563973B CN 102563973 B CN102563973 B CN 102563973B CN 201210019182 A CN201210019182 A CN 201210019182A CN 102563973 B CN102563973 B CN 102563973B
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- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/44—Heat exchange systems
Abstract
The invention relates to a novel solar air source heat pump system and a hot water production method. The system comprises an air source heat pump system which comprises a heating heat pump evaporator, the heating heat pump evaporator is a finned pipe type heat exchanger which comprises an evaporation working medium return pipe, a solar thermal medium return pipe and a plurality of heat exchange fins arranged in sequence, each heat exchange fin comprises a main radiation face, and the main radiation faces of each two adjacent heat exchange fins are opposite. The evaporation working medium return pipe and the solar thermal medium return pipe are in parallel and both penetrate through the heat exchange fins, and the thermal medium in the solar thermal medium return pipe exchanges heat with the evaporation working medium return pipe through the heat exchange fins. Solar energy can be fully used by means of the novel solar air source heat pump system, and efficiency of an air source heat pump is greatly improved.
Description
Technical field
The present invention relates to building heat supplying heating technology, particularly a kind of by solar energy and air can in conjunction with heat pump and hot water preparation method.
Background technology
Existing solar thermal collection system: relative efficiency is high, cost is low, technology maturation.Shortcoming: cold region heat-collecting temperature in winter is lower, the hot water temperature of most of weather is lower than 45 degree, for having a bath and heating all needs electric additional heat.The water temperature of the best set thermal efficiency of solar thermal collection system is not generally in higher than the scope about environment temperature 30 degree.Along with the rising of water temperature, the radiation loss meeting of solar energy heating efficiency and system pipeline increases.
Existing air source heat pump: air source heat pump can heat supply heating, also can cooling, and the region efficiency not too low at temperature is high, is very energy-conservation equipment.But the disadvantage of existing air source heat pump be in low-temperature cold region, the easily frosting of high humility area, the heat exchange efficiency of evaporator with heat pump is sharply declined, need to rerun after defrost, therefore power consumption greatly, this is also that air source heat pump is difficult in a large amount of reasons of using of cold region.Simultaneously in winter of high humidity region also owing to easily freezing and making air source heat pump inefficiency.
How to utilize solar energy to improve air source heat pump heating efficiency, to realize the efficient utilization of solar energy and the high-performance of air source heat pump simultaneously, become the important topic that this area is studied.The system of at present solar energy heating being combined with air source heat pump mainly contains the systems such as parallel running mode, air preheat mode, direct-expansion type.Parallel running refers to that heat pump water supply temperature after user's heat utilization reduces, after solar thermal collector, enter again heat pump water return outlet, therefore when the return water temperature of system is higher, hot water enters after solar thermal collector, the efficiency of heat collector can very lowly even may become radiator, this system in fact winter most of time cannot effectively utilize solar energy, be not energy-conservation.Air preheat mode is to install heat exchanger additional in the evaporimeter outside of air source heat pump, air will pass through evaporimeter after the heat absorption preheating of solar water again by this heat exchanger, its shortcoming is the raising increase blower fan power consumption due to windage, the temperature height of air after heat exchanger likely the temperature after evaporimeter higher than outer temperature degree, lose the original function of the heat pump of air-source heat energy utilization, wasted the part energy, the low device frosting that likely can not avoid evaporating of temperature after heat exchanger, can not be by the effective defrost of solar energy, must use traditional defrost mode, the comprehensive COP (Energy Efficiency Ratio) of system can not be maximized.Direct-expansion type has limited the area that solar energy utilizes, and easily produces the unfavorable factors such as extra fault and maintenance cost raising.
Summary of the invention
The variety of issue existing in the system that the present invention is directed to existing solar thermal collection system, air source heat pump and solar energy heating is combined with air source heat pump, a kind of novel solar air source heat pumps system is provided, this system can realize making full use of of solar energy, and has greatly improved the efficiency of air source heat pump.The invention still further relates to a kind of hot water preparation method.
Technical scheme of the present invention is as follows:
A kind of solar air source heat pumps system, comprise air source heat pump system, described air source heat pump system comprises and heats evaporator with heat pump, it is characterized in that, the described evaporator with heat pump that heats is fin-tube type heat exchanger, described fin-tube type heat exchanger comprises evaporation working medium loop pipe, solar heat medium loop pipe and several heat exchange fins of arranging in turn, described heat exchange fin comprises main radiating surface, the main radiating surface of described two adjacent heat exchange fins is oppositely arranged, described evaporation working medium loop pipe and solar heat medium loop pipe are parallel to each other and all run through each heat exchange fin, thermal medium in described solar heat medium loop pipe carries out heat exchange by heat exchange fin to evaporation working medium loop pipe.
Described solar heat medium loop pipe is arranged on the dead ahead, upstream of the downwind of evaporation working medium loop pipe.
Described evaporation working medium loop pipe is two and above be arrangeding in parallel, the radical of described solar heat medium loop pipe and the successively corresponding upstream dead ahead that be arranged on the downwind that evaporate working medium loop pipe identical with evaporation working medium loop pipe.
Distance between evaporation working medium loop pipe corresponding to described solar heat medium loop Guan Yuqi is 0～10 millimeter.
Also comprise solar thermal collection system, described solar thermal collection system comprises solar thermal collector, the first heat storage water tank and three groups of loops, described three groups of loops are respectively thermal-arrest loop, evaporator with heat pump heat-exchanging loop and use hot-water return, described thermal-arrest loop connects respectively solar thermal collector and the first heat storage water tank, described evaporator with heat pump heat-exchanging loop connects respectively solar heat medium loop pipe and the first heat storage water tank heating in evaporator with heat pump, and the water of described use hot-water return and the first heat storage water tank passes to supplying hot water and uses.
Described thermal-arrest loop is closed or communicates with the first heat storage water tank, and described evaporator with heat pump heat-exchanging loop is closed or communicates with the first heat storage water tank.
Described solar thermal collector is flat type solar heat collector or electron tubes type solar thermal collector; Or described solar thermal collection system is the heating system of photovoltaic co-generation unit, described solar thermal collector is combined heat and power assembly.
Hot water prepared by described air source heat pump system is directly exported for using or export hot water for use after the second heat storage water tank heat accumulation.
Also comprise control system, described control system is connected with solar thermal collection system with air source heat pump system respectively, when the solar heat coolant-temperature gage of the use hot-water return in solar thermal collection system is used design temperature higher than hot water, air source heat pump system is out of service; When solar heat coolant-temperature gage is used design temperature lower than hot water, air source heat pump system operation, and by heating the loop intermittent duty defrost in the solar heat medium loop pipe of evaporator with heat pump heat exchange.
A kind of hot water preparation method, solar energy heating is combined with air source heat pump, it is characterized in that, the method is that the solar heat medium loop pipe in solar energy heating is arranged to heating in evaporator with heat pump in air source heat pump, and described solar heat medium loop pipe is set is parallel to each other and all runs through several heat exchange fins that are arranged side by side successively that heat in evaporator with heat pump with the evaporation working medium loop pipe that heats in evaporator with heat pump, so that the thermal medium in solar heat medium loop pipe carries out heat exchange by heat exchange fin to evaporation working medium loop pipe.
The radical that solar heat medium loop pipe is set is identical with evaporation working medium loop pipe and solar heat medium loop pipe is arranged on to the dead ahead of the downwind of evaporation working medium loop pipe.
Heating system by flat type solar heat collector or electron tubes type solar thermal collector or employing photovoltaic co-generation unit carries out solar energy heating.
When the solar heat coolant-temperature gage of the use hot-water return in solar energy heating is used design temperature higher than hot water, air source heat pump is out of service; When solar heat coolant-temperature gage is used design temperature lower than hot water, air source heat pump operation, and by heating the loop intermittent duty defrost in the solar heat medium loop pipe of evaporator with heat pump heat exchange.
Technique effect of the present invention is as follows:
The solar air source heat pumps system the present invention relates to, comprise air source heat pump system, the evaporator with heat pump that heats in this air source heat pump system is fin-tube type heat exchanger, fin-tube type heat exchanger comprises evaporation working medium loop pipe, solar heat medium loop pipe and several heat exchange fins of arranging in turn, by the side in evaporation working medium loop pipe, parallel with it solar heat medium loop pipe is set, and evaporation working medium loop pipe and solar heat medium loop Guan Jun run through each heat exchange fin, make the thermal medium in solar heat medium loop pipe to evaporation working medium loop pipe, carry out heat exchange by heat exchange fin, thereby that carries out effective defrost and prevention air source heat pump system heats evaporator with heat pump frosting, solar energy heating and air source heat pump are carried out to effective combination, avoided the waste of the energy, realize making full use of of solar energy, improved the evaporating temperature that heats evaporator with heat pump, thereby greatly improved the efficiency of air source heat pump.
Solar heat medium loop pipe is arranged on the dead ahead, upstream of the downwind of evaporation working medium loop pipe, be that solar heat medium loop pipe is in the setting of inlet air side, reduce on the one hand windage, save fan energy consumption, can also further improve the evaporating temperature of the evaporation working medium loop pipe heating in evaporator with heat pump, improve the efficiency of air source heat pump system, the evaporation working medium loop pipe evaporation that further impels airborne energy to be heated in evaporator with heat pump absorbs.
The distance arranging between the evaporation working medium loop pipe that solar heat medium loop Guan Yuqi is corresponding is 0～10 millimeter, now the thermal medium in solar heat medium loop pipe can farthest reduce thermal resistance, directly or by heat exchange fin indirectly evaporation working medium loop pipe is carried out to heat exchange.
Solar thermal collector in solar thermal collection system adopts flat type solar heat collector or electron tubes type solar thermal collector, preferably heat pipe type heat collector utilizes heat pipe effect to carry out thermal-arrest, and the heating system that adopts photovoltaic co-generation unit, because heat pump is not high to solar energy heating temperature requirement, this heat-collecting temperature at twenty or thirty degree with interior, therefore the collecting efficiency of solar thermal collection system is high, and has good bearing capacity.
In solar air source heat pumps system, control system is set, can effectively utilize solar energy, in solar energy abundance, air source heat pump system is out of service, only move solar thermal collection system, can reach making full use of of solar thermal collection system, when in winter and solar energy deficiency time, air source heat pump system operation, and by heating the loop intermittent duty defrost in the solar heat medium loop pipe of evaporator with heat pump heat exchange, unnecessary heat is directly used in and heats evaporator with heat pump evaporation endothermic in air source heat pump system, farthest to improve the efficiency of air source heat pump.Control system also can be by controlling the flow of solar heat medium loop, and the air themperature after when heat pump normally moves air is absorbed heat by evaporator with heat pump, lower than ambient air temperature, guarantees the operation of solar air source heat pumps energy saving of system.
The hot water preparation method who the present invention relates to, solar energy heating is combined with air source heat pump, solar heat medium loop pipe in solar energy heating is arranged to heating in evaporator with heat pump in air source heat pump, and described solar heat medium loop pipe is set is parallel to each other and all runs through several heat exchange fins that are arranged side by side successively that heat in evaporator with heat pump with the evaporation working medium loop pipe that heats in evaporator with heat pump, so that the thermal medium in solar heat medium loop pipe carries out heat exchange by heat exchange fin to evaporation working medium loop pipe, by this heat exchange, played this to the effect that heats evaporator with heat pump defrost and prevent its frosting, and the unnecessary heat of solar energy heating can be directly used in and heat evaporator with heat pump evaporation endothermic in air source heat pump system, to improve to greatest extent the efficiency of air source heat pump.
Accompanying drawing explanation
Fig. 1 is the structural representation that heats evaporator with heat pump in solar air source heat pumps system of the present invention.
Fig. 2 is the preferred structure schematic diagram that heats evaporator with heat pump in solar air source heat pumps system of the present invention.
Fig. 3 is the side structure schematic diagram of Fig. 2.
Fig. 4 is the first preferred structure schematic diagram of solar air source heat pumps system of the present invention.
Fig. 5 is the second preferred structure schematic diagram of solar air source heat pumps system of the present invention.
Fig. 6 is the third preferred structure schematic diagram of solar air source heat pumps system of the present invention.
Fig. 7 is the 4th kind of preferred structure schematic diagram of solar air source heat pumps system of the present invention.
In figure, each label lists as follows:
1-evaporation working medium loop pipe; 2-solar heat medium loop pipe; 3-heat exchange fin; 4-solar thermal collector; 5-combined heat and power assembly; 6-thermal-arrest loop; 7-evaporator with heat pump heat-exchanging loop; 8-is used hot-water return.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention will be described.
The present invention relates to a kind of solar air source heat pumps system, comprise air source heat pump system, air source heat pump system comprises and heats evaporator with heat pump, this heats evaporator with heat pump is fin-tube type heat exchanger, its structure as shown in Figure 1, comprise evaporation working medium loop pipe 1, solar heat medium loop pipe 2 and several heat exchange fins of arranging in turn 3, each heat exchange fin 3 comprises main radiating surface, the main radiating surface of two adjacent heat exchange fins 3 is oppositely arranged, preferably each main radiating surface is parallel to each other, Fig. 1 is front view, therefore only shown a heat exchange fin 3, evaporation working medium loop pipe 1 and solar heat medium loop pipe 2 are parallel to each other and all run through each heat exchange fin 3, thermal medium in solar heat medium loop pipe 2 carries out heat exchange by 3 pairs of evaporation working medium loop pipe 1 of heat exchange fin.
Fig. 2 and Fig. 3 are respectively front and the side structure schematic diagram that preferably heats evaporator with heat pump, and in this embodiment, the direction of arrow is wind direction, and solar heat medium loop pipe 2 is arranged on the dead ahead, upstream of the downwind of evaporation working medium loop pipe 1.Medium in solar heat medium loop pipe 2 can be water or anti-icing fluid etc.Evaporation working medium loop pipe 1 and solar heat medium loop pipe 2 can all run through each heat exchange fin 3 from the main radiating surface of heat exchange fin 3, the distance of the evaporation working medium loop pipe that solar heat medium loop pipe 2 is corresponding with it is the smaller the better, the distance preferably arranging between the evaporation working medium loop pipe 1 that solar heat medium loop pipe 2 is corresponding with it is 0～10 millimeter, and now the thermal medium in solar heat medium loop pipe 2 can farthest directly or by heat exchange fin 3 carry out heat exchange to evaporation working medium loop pipe 1 indirectly.Evaporation working medium loop pipe 1 in this embodiment is one, certainly, evaporation working medium loop pipe 1 also can be set to more than two or two, now the radical of solar heat medium loop pipe 2 is identical with evaporation working medium loop pipe 1, and each solar heat medium loop pipe 2 is successively set on the dead ahead of the downwind of each self-corresponding evaporation working medium loop pipe 1.
Air source heat pump system in solar air source heat pumps system of the present invention, except comprising above-mentioned heating evaporator with heat pump, there is the core component identical with the internal structure of existing air source heat pump system, as compressor, condenser and expansion valve etc., liquid refrigerants enters and heats evaporator with heat pump after expansion valve, owing to heating the pressure of evaporator with heat pump, suddenly decline, therefore liquid refrigerant again evaporates and becomes gaseous state rapidly, and absorb heats a large amount of in air, compressor is by after the low-temp low-pressure refrigerant compression refluxing, the gas that becomes HTHP is discharged, the cold media gas of HTHP is through condenser condenses heat release, the heat discharging is used with supplying hot water after conducting to water tank.
Solar air source heat pumps system of the present invention, except comprising air source heat pump system, also comprise solar thermal collection system, the first preferred structure schematic diagram of solar air source heat pumps system as shown in Figure 4, solar thermal collection system comprises solar thermal collector 4, the first heat storage water tank and three groups of loops, described three groups of loops are respectively thermal-arrest loop 6, evaporator with heat pump heat-exchanging loop 7 and use hot-water return 8, thermal-arrest loop 6 connects respectively solar thermal collector 4 and the first heat storage water tank, evaporator with heat pump heat-exchanging loop 7 connects respectively solar heat medium loop pipe 2 and the first heat storage water tank heating in evaporator with heat pump, use the water of hot-water return 8 and the first heat storage water tank to pass to supplying hot water use.Thermal-arrest loop 6 in this embodiment is closed, this thermal-arrest loop 6 also can be set and communicate with the first heat storage water tank, in thermal-arrest loop 6, can leak water or anti-icing fluid; Evaporator with heat pump heat-exchanging loop 7 communicates with the first heat storage water tank, evaporator with heat pump heat-exchanging loop 7 also can be set for closed, in evaporator with heat pump heat-exchanging loop 7, can leak water or anti-icing fluid.
Solar thermal collector 4 is preferably set to flat type solar heat collector or electron tubes type solar thermal collector.When solar thermal collector 4 is flat type solar heat collector, can adopt metal material through extruding or the stamping forming flat-plate heat pipe with two and the via-hole array slab construction that is arranged side by side above, filling liquid working medium by the sealed at both ends encapsulation of flat-plate heat pipe in through hole, flat-plate heat pipe has flat plate frame, one end that its surface area is larger can be used as the setting of heat absorbing part forward sunlight, flat-plate heat pipe is as the rear evaporation gasification of the liquid working substance heat absorption in the evaporator section of heat absorbing part, natural flow is to condensation segment, condensation segment heat release is liquefied and is relied on gravity or capillary force effect to flow back to evaporator section, automatically complete circulation.Wherein, the water of passing to the first heat storage water tank during the condensation segment condensation heat release of flat-plate heat pipe by heat-conducting mode through thermal-arrest loop makes hot water to carry out thermal-arrest.The heat absorbing part arranged outside of flat-plate heat pipe can have light-absorbing coating; Some micro-fin or the microflute of augmentation of heat transfer effect can also be set in flat-plate heat pipe.Flat-plate heat pipe can carry out the transmission of heat by the mode fitting with thermal-arrest loop 6, if add fluid working substance to seal after flat-plate heat pipe and thermal-arrest loop integral body are vacuumized, also can be considered as that flat-plate heat pipe and fluid circuit are whole forms a heat pipe again.Certainly flat type solar heat collector also can adopt the interconnective micropore nest of tubes of making by welding procedure in flat-plate collector framework, in plate frame after application of vacuum filling liquid working medium, liquid working substance is evenly distributed on each independently in microporous pipeline, self-assembling formation heat pipe effect.When solar thermal collector 4 is electron tubes type solar thermal collector, this electron tubes type solar thermal collector comprises support and is fixed on one group of transparent glass pipe with vacuum interlayer on support, in transparent glass pipe intermediary canal, be provided with flat-plate heat pipe, in flat-plate heat pipe, be provided with through hole, filling working medium the sealed at both ends heat pipe structure that forms in through hole.
Fig. 5 is the second preferred structure schematic diagram of solar air source heat pumps system of the present invention.In this embodiment, set up the second heat storage water tank, heating after evaporator with heat pump heat absorption in air source heat pump system, refrigerant through compressor to condenser condenses heat release, heat conducts to the second heat storage water tank, after the second heat storage water tank heat accumulation, export hot water for use, it is more constant that this structure offers user's hot water temperature.
Fig. 6 is the third preferred structure schematic diagram of solar air source heat pumps system of the present invention.Solar thermal collection system in this embodiment is the heating system (PV/T) of photovoltaic co-generation unit, specifically can adopt the heating system of low-grade fever tubular type photovoltaic co-generation unit, now solar thermal collector is combined heat and power assembly 5, such as, combined heat and power assembly adopts one or more flat-plate heat pipe, arrange flat-plate heat pipe before, the whole backboard of this solar photovoltaic cell panel is directly or indirectly close to and is covered to the front face of rear plate face and solar photovoltaic cell panel backboard, thermal-arrest loop 6 be now band-tube type heat exchanger and with flat-plate heat pipe after a radiating segment laminating of plate face.
Fig. 7 is the 4th kind of preferred structure schematic diagram of solar air source heat pumps system of the present invention.Solar thermal collection system in this embodiment is still identical with structure shown in Fig. 6, heating system (PV/T) for photovoltaic co-generation unit, difference is, structure shown in Fig. 6 than structure shown in Fig. 7 many second heat storage water tank, evaporator with heat pump heat-exchanging loop 7 in Fig. 6 connects respectively solar heat medium loop pipe 2 and the first heat storage water tank heating in evaporator with heat pump, and the evaporator with heat pump heat-exchanging loop 7 in structure shown in Fig. 7 does not flow back to the first heat storage water tank after the first heat storage water tank and 2 heat exchange of solar heat medium loop pipe, but be connected directly to the combined heat and power assembly 5 as solar thermal collector, now loop stream return the temperature of combined heat and power assembly 5 will be lower, so just can further improve the collecting efficiency of combined heat and power assembly 5.Also can from the loop of air source heat pump system to the first heat storage water tank, heat exchanger be set to play the effect of loop cooling at the evaporator with heat pump heat-exchanging loop 7 of structure shown in Fig. 4-6, thereby improve the collecting efficiency of solar thermal collector.
In the solar air source heat pumps system of the related solar air source heat pumps system of Fig. 1 to Fig. 7 or other structure involved in the present invention during in work, preferably adopt control system to control, be that solar air source heat pumps system of the present invention also comprises control system, this control system is connected with solar thermal collection system with air source heat pump system respectively, when the solar heat coolant-temperature gage of the use hot-water return in solar thermal collection system is used design temperature higher than hot water, air source heat pump system is out of service; When solar heat coolant-temperature gage is used design temperature lower than hot water, air source heat pump system operation, now moving control model comprises: by heating loop (or being called solar heat medium loop) the intermittent duty defrost (as fixed time interval operation defrost) in the solar heat medium loop pipe of evaporator with heat pump heat exchange, be to determine according to heating evaporator with heat pump table temperature or frost thickness the defrost time running time of solar heat medium loop, in the defrost time, air source heat pump system can move continuously, also can be out of service.If in the defrost time air source heat pump system out of service after, surpass more than freezing point temperature air source heat pump system afterwards and heat unlatching heating evaporator with heat pump table temperature.
The solar air source heat pumps system the present invention relates to, by solar thermal collection system to heating the preferential efficient defrost of evaporator with heat pump, and by more than heat be directly used in and heat evaporator with heat pump evaporation endothermic, realize the maximum utilization of solar energy and improve to greatest extent the efficiency of air source heat pump system, this system of the present invention can be effective to building and heating and hot-water heating system.(for building and heating, owing to only utilizing solar energy to be difficult to satisfy the demand, best bet is to utilize solar source, to heating evaporator with heat pump, carry out heat exchange, or minimum assurance heats the defrost of evaporator with heat pump and the frosting that inhibition heats evaporator with heat pump, improve to greatest extent the efficiency of air source heat pump system.) the present invention's solar heat in winter and solar energy deficiency also can make full use of, and improves the COP of air source heat pump by improving the evaporating temperature of air source heat pump system, also can improve by the anti-defrosting of solar heat the COP of air source heat pump.
The invention still further relates to a kind of hot water preparation method that solar energy heating is combined with air source heat pump, the method is that the solar heat medium loop pipe in solar energy heating is arranged to heating in evaporator with heat pump in air source heat pump, and described solar heat medium loop pipe is set is parallel to each other and all runs through several heat exchange fins that are arranged side by side successively that heat in evaporator with heat pump with the evaporation working medium loop pipe that heats in evaporator with heat pump, so that the thermal medium in solar heat medium loop pipe carries out heat exchange by heat exchange fin to evaporation working medium loop pipe.Preferably, the main heat exchange face of each adjacent heat exchange fin is oppositely arranged and is parallel to each other.
Said method is preferably arranged on solar heat medium loop pipe the dead ahead, upstream of the downwind of evaporation working medium loop pipe, to improve the evaporating temperature that heats evaporator with heat pump of air source heat pump, improves the efficiency of air source heat pump.The distance that can arrange between the evaporation working medium loop pipe that solar heat medium loop Guan Yuqi is corresponding is 0～10 millimeter, makes the thermal medium in solar heat medium loop pipe can farthest reduce thermal resistance.Multipair solar heat medium loop pipe and evaporation working medium loop pipe also can be set, the radical of solar heat medium loop pipe is identical with evaporation working medium loop pipe, and each solar heat medium loop Guan Jun is arranged on the dead ahead of the downwind of the evaporation working medium loop pipe corresponding with it.The method can adopt flat type solar heat collector or electron tubes type solar thermal collector or adopt the heating system (as the heating system of low-grade fever tubular type photovoltaic co-generation unit) of photovoltaic co-generation unit to carry out solar energy heating.
In hot water preparation method of the present invention, operation strategy can be set, when the solar heat coolant-temperature gage of the use hot-water return in solar energy heating is used design temperature higher than hot water, air source heat pump is out of service; When solar heat coolant-temperature gage is used design temperature lower than hot water, air source heat pump operation, according to the operation control model that heats evaporator with heat pump table temperature or frost thickness and determine the method, and by heating loop (or being called solar heat medium loop) the intermittent duty defrost in the solar heat medium loop pipe of evaporator with heat pump heat exchange.
It should be pointed out that the above specific embodiment can make the invention of those skilled in the art's comprehend, but do not limit the present invention in any way creation.Therefore; although this description has been described in detail the invention with reference to drawings and Examples; but; those skilled in the art are to be understood that; still can modify or be equal to replacement the invention; in a word, all do not depart from technical scheme and the improvement thereof of the spirit and scope of the invention, and it all should be encompassed in the middle of the protection domain of the invention patent.
Claims (13)
1. a solar air source heat pumps system, comprise air source heat pump system, described air source heat pump system comprises and heats evaporator with heat pump, it is characterized in that, the described evaporator with heat pump that heats is fin-tube type heat exchanger, described fin-tube type heat exchanger comprises evaporation working medium loop pipe, solar heat medium loop pipe and several heat exchange fins of arranging in turn, described heat exchange fin comprises main radiating surface, the main radiating surface of described heat exchange fin is oppositely arranged, described evaporation working medium loop pipe and solar heat medium loop pipe are parallel to each other and all run through each heat exchange fin, thermal medium in described solar heat medium loop pipe carries out heat exchange by heat exchange fin to evaporation working medium loop pipe.
2. solar air source heat pumps system according to claim 1, is characterized in that, described solar heat medium loop pipe is arranged on the dead ahead, upstream of the downwind of evaporation working medium loop pipe.
3. solar air source heat pumps system according to claim 1, it is characterized in that, described evaporation working medium loop pipe is two and above be arrangeding in parallel, the radical of described solar heat medium loop pipe and the successively corresponding upstream dead ahead that be arranged on the downwind that evaporate working medium loop pipe identical with evaporation working medium loop pipe.
4. solar air source heat pumps system according to claim 1, is characterized in that, the distance between evaporation working medium loop pipe corresponding to described solar heat medium loop Guan Yuqi is 0～10 millimeter.
5. according to the solar air source heat pumps system one of claim 1 to 4 Suo Shu, it is characterized in that, also comprise solar thermal collection system, described solar thermal collection system comprises solar thermal collector, the first heat storage water tank and three groups of loops, described three groups of loops are respectively thermal-arrest loop, evaporator with heat pump heat-exchanging loop and use hot-water return, described thermal-arrest loop connects respectively solar thermal collector and the first heat storage water tank, described evaporator with heat pump heat-exchanging loop connects respectively solar heat medium loop pipe and the first heat storage water tank heating in evaporator with heat pump, the water of described use hot-water return and the first heat storage water tank passes to supplying hot water and uses.
6. solar air source heat pumps system according to claim 5, is characterized in that, described thermal-arrest loop is closed or communicates with the first heat storage water tank, and described evaporator with heat pump heat-exchanging loop is closed or communicates with the first heat storage water tank.
7. solar air source heat pumps system according to claim 5, is characterized in that, described solar thermal collector is flat type solar heat collector or electron tubes type solar thermal collector; Or described solar thermal collection system is the heating system of photovoltaic co-generation unit, described solar thermal collector is combined heat and power assembly.
8. solar air source heat pumps system according to claim 5, is characterized in that, hot water prepared by described air source heat pump system is directly exported for using or export hot water for use after the second heat storage water tank heat accumulation.
9. solar air source heat pumps system according to claim 5, it is characterized in that, also comprise control system, described control system is connected with solar thermal collection system with air source heat pump system respectively, when the solar heat coolant-temperature gage of the use hot-water return in solar thermal collection system is used design temperature higher than hot water, air source heat pump system is out of service; When solar heat coolant-temperature gage is used design temperature lower than hot water, air source heat pump system operation, and by heating the loop intermittent duty defrost in the solar heat medium loop pipe of evaporator with heat pump heat exchange.
10. a hot water preparation method, solar energy heating is combined with air source heat pump, it is characterized in that, the method is that the solar heat medium loop pipe in solar energy heating is arranged to heating in evaporator with heat pump in air source heat pump, and described solar heat medium loop pipe is set is parallel to each other and all runs through several heat exchange fins that are arranged side by side successively that heat in evaporator with heat pump with the evaporation working medium loop pipe that heats in evaporator with heat pump, so that the thermal medium in solar heat medium loop pipe carries out heat exchange by heat exchange fin to evaporation working medium loop pipe.
11. hot water preparation methods according to claim 10, is characterized in that, the radical that solar heat medium loop pipe is set is identical with evaporation working medium loop pipe and solar heat medium loop pipe is arranged on to the dead ahead of the downwind of evaporation working medium loop pipe.
12. hot water preparation methods according to claim 10, is characterized in that, by flat type solar heat collector or electron tubes type solar thermal collector or adopt the heating system of photovoltaic co-generation unit to carry out solar energy heating.
13. according to the hot water preparation method described in claim 10 or 11 or 12, it is characterized in that, when the solar heat coolant-temperature gage of the use hot-water return in solar energy heating is used design temperature higher than hot water, air source heat pump is out of service; When solar heat coolant-temperature gage is used design temperature lower than hot water, air source heat pump operation, and by heating the loop intermittent duty defrost in the solar heat medium loop pipe of evaporator with heat pump heat exchange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210019182.8A CN102563973B (en) | 2012-01-20 | 2012-01-20 | Novel solar air source heat pump system and hot water production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210019182.8A CN102563973B (en) | 2012-01-20 | 2012-01-20 | Novel solar air source heat pump system and hot water production method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102563973A CN102563973A (en) | 2012-07-11 |
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| CN104180420A (en) * | 2013-05-21 | 2014-12-03 | 赵建忠 | Solar energy and air-source heat pump heating and water heating complementary system and method |
| CN104184399B (en) * | 2014-08-26 | 2018-06-05 | 陈松 | A kind of solar energy optical-thermal efficient power generation system |
| CN107166498A (en) * | 2017-06-15 | 2017-09-15 | 燕山大学 | A kind of loop circuit heat pipe/bis- direct expanding solar heating pump heating system |
| CN109855070A (en) * | 2019-03-28 | 2019-06-07 | 山东力诺瑞特新能源有限公司 | Middle temperature solar coupling heat pump Low Temperature Steam system and supply vaporization method |
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| CN101169297A (en) * | 2007-11-16 | 2008-04-30 | 东南大学 | Heat-collecting energy-storage evaporation integral solar energy heat pump system |
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| CN201637192U (en) * | 2010-03-30 | 2010-11-17 | 洛阳天照新能源科技有限公司 | Solar integrated device capable of heating, cooling and supplying hot water |
| CN202648245U (en) * | 2012-01-20 | 2013-01-02 | 赵耀华 | Novel solar energy air source heat pump system |
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| CN2811854Y (en) * | 2005-08-05 | 2006-08-30 | 程向阳 | Solar heat pump unit for water heating and air conditioning |
| CN101169297A (en) * | 2007-11-16 | 2008-04-30 | 东南大学 | Heat-collecting energy-storage evaporation integral solar energy heat pump system |
| CN101236013A (en) * | 2008-03-07 | 2008-08-06 | 南京师范大学 | Multiple source heat collection /energy accumulation/ evaporation integrated heat pump hot-water system |
| CN201637192U (en) * | 2010-03-30 | 2010-11-17 | 洛阳天照新能源科技有限公司 | Solar integrated device capable of heating, cooling and supplying hot water |
| CN202648245U (en) * | 2012-01-20 | 2013-01-02 | 赵耀华 | Novel solar energy air source heat pump system |
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