CN203880998U - Heat pump system - Google Patents

Heat pump system Download PDF

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Publication number
CN203880998U
CN203880998U CN201320888597.9U CN201320888597U CN203880998U CN 203880998 U CN203880998 U CN 203880998U CN 201320888597 U CN201320888597 U CN 201320888597U CN 203880998 U CN203880998 U CN 203880998U
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China
Prior art keywords
heat exchanger
heat
valve
cold
hot water
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CN201320888597.9U
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Chinese (zh)
Inventor
徐亮
杜玉清
王俊
雷晶
王春刚
申广玉
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Trane International Inc
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Trane International Inc
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Priority to CNPCT/CN2012/088123 priority Critical
Priority to PCT/CN2012/088123 priority patent/WO2014101225A1/en
Application filed by Trane International Inc filed Critical Trane International Inc
Priority to CN201320888597.9U priority patent/CN203880998U/en
Application granted granted Critical
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Abstract

The utility model provides a heat pump system. The heat pump system comprises a first heat exchanger, a second heat exchanger and a third heat exchanger (for instance, heat exchanger used for hot water). Above heat exchangers are all arranged on at least one expansion valve at a downstream position of the above heat exchanger used for hot water. At least one expansion valve is arranged among the heat exchanger used for hot water, the first heat exchanger and the second heat exchanger. The heat pump system is capable of providing six operation modes including a refrigeration mode, a heating mode, a hot water mode, a heat recovery mode, a concurrent heating and hot water mode and a defrosting mode.

Description

Heat pump
Technical field
The utility model is usually directed to reversible Refrigeration Technique.More particularly, relate to can be by the liquid heat pump of water heating for example for the utility model.
background technology
Heat pump is reversible refrigeration system, and these reversible refrigeration system can regulate space via the air in heating or cooling space.Heat pump also can be for family expenses or other purposes and liquid (for example water) is heated.
utility model content
Described each embodiment of the utility model relates to heat pump and method, and that these heat pumps and method provide is cold/liquid of heat, for example, for air conditioning and/or for example use hot water in house application.
The described heat pump of the utility model can comprise the first heat exchanger, the second heat exchanger and the 3rd heat exchanger (for example hot water heat exchanger).At least one expansion valve can be arranged in this hot water and use between heat exchanger and above-mentioned the first and second heat exchangers with downstream position and this hot water of heat exchanger.This at least one expansion valve can be connected with this first heat exchanger and/or this second heat exchanger fluid, and is shared by above-mentioned first, second, and third heat exchanger.The described term of the utility model " downstream " and " upstream " refer to the relative position of each parts of heat pump, and via above-mentioned relative position, cold-producing medium can flow in the cycle in refrigeration, and this refrigeration in the cycle using compressor as starting point.
In one embodiment, can guide the cold-producing medium from compressor compresses into both direction, one to cross valve, and another is to hot water heat exchanger.Can adopt two valves to control this both direction of refrigerant flow direction.
In certain embodiments, this heat pump comprises an air injection enthalpy-increasing (EVI) parts.These EVI parts can be arranged in to the downstream position of heat exchanger and the upstream position of this at least one expansion valve for this hot water.
The described heat pump of the utility model can provide six operator schemes, comprises refrigeration mode, heating mode, hot water pattern, heat recovery mode, heating and hot water pattern and defrosting mode simultaneously.
Each embodiment that the utility model provides can work in certain opereating specification, and for example operating temperature is down to for example approximately-15 ℃, and improves hot water outlet temperature to for example about 65 ℃, and makes the more energy-conservation and environmental protection of this heat pump.
In one embodiment, refrigerating circuit comprises compressor, the first heat exchanger, the second heat exchanger, the 3rd heat exchanger and at least one expansion valve, and this at least one expansion valve is arranged in the downstream position of the 3rd heat exchanger.Above-mentioned first, second, and third heat exchanger shares above-mentioned at least one expansion valve, and above-mentioned at least one expansion valve is arranged between the 3rd heat exchanger and above-mentioned the first and second heat exchangers.
In another embodiment, disclosed the method that air conditioning and/or hot water are provided.The cold-producing medium of compression is drawn towards hot water and uses heat exchanger so that water is heated.From this hot water, with the cold-producing medium of heat exchanger, be drawn towards expansion valve.Share this expansion valve with the first heat exchanger and/or the second heat exchanger.This expansion valve is arranged in this hot water with between heat exchanger and above-mentioned the first and second heat exchangers.This second heat exchanger arrangement becomes to provide air conditioning.
accompanying drawing explanation
Referring now to accompanying drawing, wherein similarly mark represents corresponding parts in literary composition.
Fig. 1 shows according to the schematic diagram of the heat pump of an embodiment.
Fig. 2 shows according to the schematic diagram of the heat pump of an embodiment.
Fig. 2 a shows according to the schematic diagram of the heat pump of Fig. 2 in refrigeration mode of an embodiment.
Fig. 2 b shows according to the schematic diagram of the heat pump of Fig. 2 in heating mode of an embodiment.
Fig. 2 c shows according to the schematic diagram of the heat pump of Fig. 2 in hot water pattern of an embodiment.
Fig. 2 d shows according to the schematic diagram of the heat pump of Fig. 2 in heat recovery mode of an embodiment.
Fig. 2 e shows according to the schematic diagram of the heat pump of Fig. 2 in heating and hot water pattern of an embodiment.
Fig. 2 f shows according to the schematic diagram of the heat pump of Fig. 2 in defrosting mode of an embodiment.
the specific embodiment
Described each embodiment of the utility model relates to heat pump and method, and the liquid of cold/heat that these heat pumps and method provide, for example, for air conditioning and/or for example for using hot water in house application.The described heat pump of the utility model can comprise the first heat exchanger, the second heat exchanger and the 3rd heat exchanger (for example hot water heat exchanger).At least one expansion valve can be arranged in to this hot water uses between heat exchanger and above-mentioned the first and second heat exchangers with downstream position and this hot water of heat exchanger.This at least one expansion valve can be connected with this second heat exchanger fluid with this first heat exchanger, and is shared by above-mentioned first, second, and third heat exchanger.
In one embodiment, from the cold-producing medium of compressor compresses, can be drawn towards both direction, one to cross valve, and another is to hot water heat exchanger.Can adopt two valves to control this both direction of refrigerant flow direction.
In certain embodiments, this heat pump comprises an air injection enthalpy-increasing (EVI) parts.These EVI parts can be arranged in to the downstream position of heat exchanger and the upstream position of this at least one expansion valve for this hot water.
The described heat pump of the utility model can provide six operator schemes, comprises refrigeration mode, heating mode, hot water pattern, heat recovery mode, heating and hot water pattern and defrosting mode simultaneously.
In an embodiment of the present utility model, heat pump also comprises EVI parts, and these EVI parts are arranged in the import of described at least one expansion valve.
In an embodiment of the present utility model, described EVI parts comprise EVI expansion valve and economizer, and the outlet of described EVI expansion valve is connected with the inlet fluid of described compressor.
In an embodiment of the present utility model, a downstream that is arranged in described expansion valve of described the first and second heat exchangers, and another of described the first and second heat exchangers is arranged in the upstream of described expansion valve.
In an embodiment of the present utility model, also comprise cross valve and the first and second valves in parallel, described the first and second valves are connected with the outlet fluid of described compressor, described cross valve and described the first valve fluid are connected in downstream position, and described second valve is connected with the inlet fluid of described the 3rd heat exchanger.
In an embodiment of the present utility model, described in each, the first and second heat exchangers have the input/output end port being connected with described cross valve fluid.
With reference to the accompanying drawing that forms the utility model part, and via illustrated mode, each embodiment is shown therein, wherein the described method and system of the utility model can be implemented.Term " heat pump circuit " is commonly referred to as for example reversible vapour compression refrigeration loop, and this loop comprises compressor, at least two heat exchangers and at least one expansion valve.
Fig. 1 shows according to the schematic diagram of the heat pump that comprises heat pump circuit 100 of an embodiment, and this heat pump circuit comprises the hot water heat exchanger of hot-water supply.This heat pump 100 comprises parts 110.These parts 110 can be integrated for controlling the refrigerating circuit of flow of refrigerant, and this refrigerating circuit comprises compressor (example compressor 1 as shown in Figure 2), expansion valve (example expansion valve 8 as shown in Figure 2), heat exchanger (example heat exchanger 14 for hot water as shown in Figure 2), the first heat exchanger (example the first heat exchanger 3 as shown in Figure 2), the second heat exchanger (example the second heat exchanger 10 as shown in Figure 2) and valve (example valve 16 and 17 as shown in Figure 2) for hot water.This heat pump 100 also comprises outdoor heat converter 105 and the indoor set 120a-b being connected with these parts 110 fluids.In one embodiment, this outdoor heat converter 105 can be geothermal heat exchange device for example.This outdoor heat converter 105 can make water carry out the heat exchange with geothermal source as heat exchange medium.Geothermal heat exchange device and geothermal source are known.This indoor set 120a can be for example for making the cooling indoor heat converter of room air.This indoor set 120b can be for example for by the indoor heat converter of indoor floor heating.
This heat pump 100 also comprises boiler 130, and this boiler 130 is connected by heat exchanger fluid with the hot water of these parts 110.Be appreciated that this hot water can be integrated in this boiler 130 with heat exchanger.
These parts 110 can provide cold water so that room air is cooling to indoor set 120a, to indoor set 120a, provide hot water with by the heating of this room air, to indoor set 120b, provide hot water with by floor heating, and/or by the water heating of this boiler 130.
In certain embodiments, when this hot water uses heat exchanger in these parts 110, water can circulate between this boiler 130 and this parts 110.This hot water can be by the water heating for circulating with heat exchanger.When this hot water is integrated in this boiler 130 with heat exchanger, these parts 110 can provide cold-producing medium so that the water in this boiler 130 is heated with heat exchanger to this hot water.Can provide hot water to the water-water heat exchanger of this boiler 130.
In certain embodiments, when in refrigeration mode, these parts 110 can provide cold air conditioner water to indoor set 120a, and in this indoor set 120a, this cold air conditioner water can be taken away some heat energy so that this room air cools down and by the heating of this air conditioner water from room air.These parts 110 can be taken away some heat energy so that this air conditioner water cools down from the air conditioner water of this heating via the first heat exchanger.These parts 110 can be brought those heat energy and the input of parts power into source water so that this source water is heated via the second heat exchanger.The source water of this heating can make heat energy enter ground via outdoor heat converter 105.
In certain embodiments, when in heating mode, these parts 110 can be taken away some heat energy so that this source water cooling from this source water via the second heat exchanger.This cooling source water can be taken away via outdoor heat converter 105 some heat energy so that this source water is heated from ground.These parts 110 can be brought those heat energy and the input of parts power into this air conditioner water with by this air conditioner water heating via the first heat exchanger, then to indoor set 120a or 120b, provide the air conditioner water of this heating so that room air is heated.
This heat pump 100 can be via the heat exchanger cool/heat of implementation space and the heating of water simultaneously for this hot water.In one embodiment, this hot water can be a kind of device with heat exchanger, and running water is drawn out of via this device and is heated by the cold-producing medium by this device.The running water of this heating can recycle and loop back domestic hot water heater.
Fig. 2 shows heat pump 200, and this heat pump 200 comprises heat pump circuit 210.This heat pump circuit 210 comprises compressor 1, and this compressor 1 has outlet 1a, the first import 1b and the second import 1c.Cold-producing medium from this outlet 1a can be drawn towards both direction via valve 16,17 respectively, and one to cross valve 2, and another is to heat exchanger 14 for hot water.Valve 16 and 17 can be magnetic valve or for controlling other suitable valves of flow of refrigerant.This hot water comprises from compressor 1 and receives the import 14a of cold-producing medium and via valve 15, this cold-producing medium guided into the outlet 14b of the tie point 2j of this heat pump circuit 210 with heat exchanger 14.
The described cross valve of the utility model comprises that four port d, c, s and e are to control flow of refrigerant as cross valve 2.This cross valve can be set for example, in the first state (not powering on) or for example, in the second state (powering on).For example, when this cross valve is during in the first state (not powering on), the cold-producing medium that flows into port d can flow out from port c, and the cold-producing medium that flows into port e can flow out from port s.For example, when this cross valve is during in the second state (powering on), the cold-producing medium that flows into port d can flow out from port e, and the cold-producing medium that flows into port c can flow out from port s.
Except heat exchanger 14(the 3rd heat exchanger for this hot water), this heat pump circuit 210 also comprises the first heat exchanger 3 and the second heat exchanger 10.This first heat exchanger 3 comprises the first input/output end port 3a being connected with the port c fluid of this cross valve 2, the second input/output end port 3b being connected with tie point 2m fluid with this heat pump circuit 210.This second heat exchanger 10 comprises the first input/output end port 10a being connected with the port e fluid of this cross valve 2, the second input/output end port 10b being connected with tie point 2n fluid with this heat pump circuit 210.Can will guide tie point 2j into from the cold-producing medium of tie point 2m and/or 2n via control valve 4 and/or 12.
Can with valve 16, the first input/output end port 3a of this first heat exchanger 3 be connected with outlet 1a or the first import 1b fluid of this compressor 1 via controlling this cross valve 2.Can with valve 16, the first input/output end port 10a of this second heat exchanger 10 be connected with outlet 1a or the first import 1b fluid of this compressor 1 via controlling this cross valve 2.Cold-producing medium from the compression of the outlet 1a of this compressor 1 can flow into the first input/output end port 3a or 10a.The first import 1b of this compressor 1 can receive cold-producing medium from the first input/output end port 3a or 10a.
In one embodiment, this first heat exchanger 3 can be outdoor heat converter, via this outdoor heat converter, can with the cold-producing medium with by this first heat exchanger 3, form heat exchange relationship by suction outdoor air.In another embodiment, this first heat exchanger 3 can be intermediate heat exchanger, and the cold-producing medium by this intermediate heat exchanger for example, carries out heat exchange via this intermediate heat exchanger and liquid (water).This liquid in geothermal heat exchange device, circulate with geothermal source heat-shift, this geothermal heat exchange device is for example the outdoor heat converter 105 shown in Fig. 1.
In one embodiment, this second heat exchanger 10 can be indoor heat converter, and room air is to form heat exchange relationship with the cold-producing medium of this second heat exchanger blowing over this indoor heat converter.In another embodiment, this second heat exchanger 10 can be indoor heat converter, and liquid (for example water) can circulate via this indoor heat converter in the heat exchange relationship of the cold-producing medium with by this second heat exchanger.Can adopt the liquid of cold/heat to carry out cool/heat room air.
Be appreciated that the cold-producing medium needing only by wherein can carry out heat exchange with another heat exchange medium, above-mentioned the first and second heat exchangers 3 and 10 can be any suitable heat exchangers.
In one embodiment, this hot water can be condenser with heat exchanger 14, and this condenser is a kind of device, liquid (for example water) via this device with by this hot water, in the heat exchange relationship with the cold-producing medium of heat exchanger 14, be drawn out of.Via this hot water, with the liquid that heat exchanger 14 is extracted out, can be the water that recycles and loop back family expenses/Residential Buildings with Hot Water heater.That is to say, this hot water is configured to carry out direct or indirect heat exchange between cold-producing medium and water with heat exchanger 14.
In the embodiment shown in Figure 2, this heat pump circuit 210 also comprises EVI parts 25.These EVI parts 25 are arranged in to the downstream position of the 3rd heat exchanger 14 and are connected with the outlet 14b of the 3rd heat exchanger 14 via valve 15.This valve 15 allows cold-producing medium flow to these EVI parts 25 and stop flow of refrigerant in the opposite direction from the 3rd heat exchanger 14.These EVI parts 25 comprise economizer 7 and expansion valve 18.These EVI parts 25 are configured to from condenser, for example, from the first heat exchanger 3, the second heat exchanger 10 and/or hot water, with heat exchanger 14, receive cold-producing medium and make to flow through refrigerant cools wherein.Be appreciated that in other embodiments, these EVI parts 25 can be optional.
In one embodiment, a part for the cold-producing medium by this economizer 7 can be extracted and expand via this expansion valve 18 from this economizer 7.The cold-producing medium evaporation of expanding is so that flow through the refrigerant cools of this economizer 7 and get off.This refrigerant vapour is injected to the second import 1c that gets back to compressor 1.In one embodiment, this expansion valve 18 can be capillary, thermal expansion valve or electric expansion valve.
In the embodiment shown in Figure 2, this heat pump circuit 210 also comprises expansion valve 8, and this expansion valve 8 is connected with these EVI parts 25 fluids.In one embodiment, this expansion valve 8 can be electric expansion valve.This expansion valve 8 is arranged in to the downstream position of these EVI parts 25.This expansion valve 8 has from this EVI parts 25 and receives the import 8a of cold-producing mediums and this cold-producing medium is guided into the outlet 8b of the tie point 2k of this heat pump circuit 210.Can will guide tie point 2m and/or tie point 2n into from the cold-producing medium of this tie point 2k via control valve 9 and/or 13.
Via valve 4 or 12, from the cold-producing medium of the first heat exchanger 3 or the second heat exchanger 10, can be received by the import 8a of this expansion valve 8.Via valve 13 or 9, the cold-producing medium of the outlet 8b from this expansion valve 8 can be guided into the first heat exchanger 3 or the second heat exchanger 10.In the embodiment shown in Figure 2, each valve in valve 4,12,13 and 9 is check valve, and above-mentioned check valve allows cold-producing medium flow in one direction and stop flow of refrigerant in the opposite direction.
According to the AD HOC of these heat pump circuit 210 work, this expansion valve 8 is connected with heat exchanger 14 fluids with the first heat exchanger 3, the second heat exchanger 10 and/or hot water, will to it, be further described below.
Dehumidifying filter 5 and receiver 6 are connected in series at cold-producing medium, enter this cold-producing medium of the front filtration of these EVI parts 25.Reservoir 11 is connected with the port s of cross valve 2 and the first import 1b of compressor 1.The function of reservoir is known in art technology.Be appreciated that dehumidifying filter 5, receiver 6 and reservoir 11 can be optional.Be appreciated that and can guide the cold-producing medium extracting from these EVI parts 25 into this reservoir 11.
Fig. 2 a-f shows and works in respectively six heat pumps 200 under inconsiderate pattern.The position of the selected valve of Fig. 2 a-f is different and show the interior different refrigerant flowpath of heat pump circuit 210 at different operation modes.In one embodiment, this heat pump 200 can adopt geothermal source as heat sink/thermal source.
Fig. 2 a shows according to the schematic diagram of the heat pump in refrigeration mode 200 of an embodiment.In the operation of refrigeration mode, these heat pump circuit 210 implementation spaces are cooling.Compressor 1 gives off the cold-producing medium of compression via outlet 1a.Valve 16 is opened and valve 17 is cut out.This cross valve 2 for example, in the first state (not powering on).The cold-producing medium of discharge flows through port d and the c of valve 16 and this cross valve 2, and is drawn towards the first heat exchanger 3.In one embodiment, this first heat exchanger 3 can be outdoor heat converter, and another kind of heat exchange medium can carry out heat exchange and absorb heat so that this condensation of refrigerant from this cold-producing medium with this cold-producing medium therein.The cold-producing medium of condensation flows out this first heat exchanger 3, flows through valve 4, filter 5 and receiver 6 and directedly flows through these EVI parts 25 and cool down.Then this cold-producing medium is drawn towards expansion valve 8.Then the cold-producing medium from this expansion valve 8 flows through valve 9 and is introduced into the second heat exchanger 10, and this second heat exchanger 10 can be used as evaporimeter.In one embodiment, this second heat exchanger 10 can be indoor heat converter, therein via for example making this cold-producing medium evaporation from blowing over the room air reception heat of this second heat exchanger 10.Therefore, can make this room air cooling cooling with implementation space.By this second heat exchanger 10 refrigerant vapour out, be conducted through port e, the s of this cross valve 2, by reservoir 11 and via the first import 1b, get back to compressor 1.In refrigeration mode, the 3rd heat exchanger 14 leaves unused.In certain embodiments, can carry out storing liquid cold-producing medium with this 3rd idle heat exchanger 14.
Fig. 2 b shows according to the schematic diagram of the heat pump in heating mode 200 of an embodiment.In the operation of heating mode, these heat pump circuit 210 implementation space heating.Compressor 1 gives off gaseous refrigerant via outlet 1a.Valve 16 is opened and valve 17 is cut out.This cross valve 2 for example, in the second state (powering on).The cold-producing medium of discharge flows through the port d of valve 16 and this cross valve 2 and e and flows to the second heat exchanger 10, and in this second heat exchanger 10, room air can absorb heat with by space heating from this cold-producing medium.In one embodiment, this second heat exchanger 10 can be indoor heat converter, and room air is blown over this second heat exchanger 10 so that by condensation of refrigerant wherein therein.Therefore, the room air by this second heat exchanger 10 is heated.In another embodiment, this second heat exchanger 10 can be indoor heat converter, and liquid in this indoor heat converter (for example cooling water) circulates therein so that by condensation of refrigerant wherein.With the liquid of this heating, room air is heated.Be appreciated that in other embodiments, can be by the liquid of this heating for other purposes.The cold-producing medium of condensation flows out this second heat exchanger 10, flows through valve 12, filter 5 and receiver 6, and directedly flows through these EVI parts 25 and cool down.Then this cold-producing medium is drawn towards expansion valve 8.Then this cold-producing medium flows through valve 13 and is introduced into the first heat exchanger 3.In one embodiment, this first heat exchanger 3 can be outdoor heat converter, and geothermal source can absorb heat from flowing through the refrigerant gas of this first heat exchanger 3 therein.In one embodiment, this first heat exchanger 3 can be outdoor heat converter, therein can be via making this cold-producing medium evaporation from blowing over the outdoor air reception heat of this first heat exchanger 3.By this first heat exchanger 3 refrigerant vapour out, be conducted through port c, the s of this cross valve 2, by reservoir 11 and via the first import 1b, get back to compressor 1.In heating mode, the 3rd heat exchanger 14 leaves unused.In certain embodiments, can carry out storing liquid cold-producing medium with this 3rd idle heat exchanger 14.
Fig. 2 c shows according to the schematic diagram of the heat pump in hot water pattern 200 of an embodiment.In the operation of hot water pattern, this heat pump circuit 210 realizes heating liquid.Compressor 1 gives off the cold-producing medium of compression via outlet 1a.Valve 16 cuts out and valve 17 is opened.This cross valve 2 for example, in the second state (powering on).The cold-producing medium of discharge flows through valve 17 and flows to the 3rd heat exchanger 14.In one embodiment, the 3rd heat exchanger 14 can be hot water heat exchanger, and liquid (for example water) cycles through the 3rd heat exchanger 14 therein.The liquid of circulation makes by the refrigerant vapour condensation of the 3rd heat exchanger 14, and this liquid self is heated to realize heating liquid.The cold-producing medium of condensation flows out the 3rd heat exchanger 14, flows through valve 15, filter 5 and receiver 6, and directedly flows through these EVI parts 25 and cool down.Then this cold-producing medium is drawn towards expansion valve 8.Then the cold-producing medium from this expansion valve 8 flows through valve 13 and is introduced into the first heat exchanger 3 to make its evaporation via receiving heat.In one embodiment, this first heat exchanger 3 can be outdoor heat converter, and heat exchange medium can absorb heat from this refrigerant gas therein.By this first heat exchanger 3 refrigerant vapour out, be conducted through port c, the s of this cross valve 2, by reservoir 11 and via the first import 1b, get back to compressor 1.In hot water pattern, the second heat exchanger 10 leaves unused.In one embodiment, this second heat exchanger 10 can be the indoor heat converter that is positioned at the interior space.In the operation of hot water pattern, because this second heat exchanger 10 can leave unused, the air in this interior space can be impregnable.In certain embodiments, can carry out storing liquid cold-producing medium with this second idle heat exchanger 10.
Fig. 2 d shows according to the schematic diagram of the heat pump in heat recovery mode 200 of an embodiment.In the operation of heat recovery mode, this heat pump circuit 210 realizes heating liquid simultaneously and space is cooling, and this space this liquid of cooling use is as heat sink.Compressor 1 gives off the cold-producing medium of compression via outlet 1a.Valve 16 cuts out and valve 17 is opened.This cross valve 2 for example, in the first state (not powering on).The cold-producing medium of discharge flows through valve 17 and flows to the 3rd heat exchanger 14.In one embodiment, the 3rd heat exchanger 14 is hot water heat exchangers, and liquid (for example water) circulation is therein through the 3rd heat exchanger 14.The liquid of circulation makes by the refrigerant vapour condensation of the 3rd heat exchanger 14, and this liquid self is heated to realize heating liquid.The cold-producing medium of condensation flows out the 3rd heat exchanger 14, flows through valve 15, filter 5 and receiver 6, and directedly flows through these EVI parts 25 and cool down.Then this cold-producing medium is drawn towards expansion valve 8.Then the cold-producing medium from expansion valve 8 flows through valve 9 and is introduced into the second heat exchanger 10.In one embodiment, this second heat exchanger 10 can be indoor heat converter, therein via receiving heat and make this cold-producing medium evaporation from blowing over the room air of this second heat exchanger 10.This room air is cooled cooling with implementation space.By this second heat exchanger 10 refrigerant vapour out, be conducted through port e, the s of this cross valve 2, by reservoir 11 and via the first import 1b, get back to compressor 1.In heat recovery mode, the first heat exchanger 3 leaves unused.In certain embodiments, can carry out storing liquid cold-producing medium with this first idle heat exchanger 3.
Fig. 2 e shows according to the schematic diagram of the heat pump 200 in heating and hot water pattern of an embodiment.In the operation of heating and hot water pattern, this heat pump circuit 210 is used for example outdoor air to come implementation space heating simultaneously and heating liquid as thermal source.Compressor 1 gives off the cold-producing medium of compression via outlet 1a.Valve 16 and 17 is opened.This cross valve 2 for example, in the second state (powering on).The cold-producing medium of discharge is divided into respectively by the first-class and second of valve 16 and 17.
This first-class port d by this cross valve 2 and e are drawn towards the second heat exchanger 10, and in this second heat exchanger 10, room air can absorb heat with by space heating from this cold-producing medium.In one embodiment, this second heat exchanger 10 can water circulate with by the cold-producing medium heat-shift of this second heat exchanger 10.This hot water is used for the interior space to carry out air conditioning.In another embodiment, the second heat exchanger 10 can be indoor heat converter, and room air is blown over this second heat exchanger so that by condensation of refrigerant wherein therein.Therefore, the room air by this heat exchanger is heated with implementation space and heats, and this second heat exchanger 10 of the first-class outflow of the cold-producing medium of condensation, flows through valve 12 and flow to tie point 2j.
The second of cold-producing medium flows through valve 17 and flows to the 3rd heat exchanger 14.As shown in Figure 2 e, the 3rd heat exchanger 14 is hot water heat exchangers, and liquid (for example water) cycles through the 3rd heat exchanger 14 therein.The liquid of this circulation makes by the refrigerant vapour condensation of the 3rd heat exchanger 14, and this liquid self is heated to realize heating liquid.The second of the cold-producing medium of condensation flows out the 3rd heat exchanger 14, flows through valve 15 and flows to tie point 2j.
The first and second streams of this cold-producing medium converge at tie point 2j place.The cold-producing medium converging flows through filter 5 and receiver 6 and directedly flows through these EVI parts 25 and cool down.Then this cold-producing medium is drawn towards expansion valve 8.Then the cold-producing medium from expansion valve 8 flows through valve 13 and is introduced into the first heat exchanger 3 to make its evaporation via receiving heat.In one embodiment, this first heat exchanger 3 is outdoor heat converters, therein via for example making this cold-producing medium evaporation from blowing over the outdoor air reception heat of this first heat exchanger 3.By this first heat exchanger 3 refrigerant vapour be out conducted through cross valve 2 port c, s, by reservoir 11 and via the first import 1b, get back to compressor 1.
Fig. 2 f shows according to the schematic diagram of the heat pump in defrosting mode 200 of an embodiment.In the operation of defrosting mode, the frost that this heat pump circuit 210 realizes on the first heat exchanger 3 melts.Compressor 1 gives off the cold-producing medium of compression via outlet 1a.Valve 16 is opened and valve 17 is cut out.This cross valve 2 for example, in the first state (not powering on).The cold-producing medium of discharge flows through port d and the c of valve 16 and this cross valve 2, and is drawn towards the first heat exchanger 3.In one embodiment, this first heat exchanger 3 can be outdoor heat converter, and this outdoor heat converter may have frost thereon.The cold-producing medium that flows through this outdoor heat converter can heat this outdoor heat converter and melt frost on it to be realized this first heat exchanger 3 is defrosted.In certain embodiments, this first heat exchanger can use another kind of heat exchange medium (for example outdoor air) to carry out heat exchange and absorb heat so that this condensation of refrigerant from this cold-producing medium with this cold-producing medium.In certain embodiments, this first heat exchanger 3 can stop suction chamber outer air, thereby accelerates to melt the frost on this first heat exchanger 3, and when this first heat exchanger 3 is defrosted, can make this condensation of refrigerant.The cold-producing medium of condensation flows out this first heat exchanger 3, flows through valve 4, filter 5 and receiver 6, and directedly flows through these EVI parts 25 and cool down.Then this cold-producing medium is drawn towards expansion valve 8.Then the cold-producing medium from this expansion valve 8 flows through valve 9 and is introduced into the second heat exchanger 10, and this second heat exchanger 10 can be used as evaporimeter.In one embodiment, this second heat exchanger 10 can be indoor heat converter, therein via for example making this cold-producing medium evaporation from blowing over the room air reception heat of this second heat exchanger 10.Therefore can make this room air cooling cooling with implementation space.By this second heat exchanger 10 refrigerant vapour out, be conducted through port e, the s of this cross valve 2, by reservoir 11 and via the first import 1b, get back to compressor 1.In defrosting mode, the 3rd heat exchanger 14 leaves unused.In certain embodiments, can carry out storing liquid cold-producing medium with this 3rd idle heat exchanger 14.
For noted earlier, be appreciated that in the situation that not departing from the utility model scope, can modify in detail, particularly in the contents such as shape, size and layout of the building material using and each parts.It is only exemplary that description and described each embodiment are intended to be regarded as, and the broad sense of claims represents the scope and spirit that the utility model is real.

Claims (9)

1. a heat pump, is characterized in that, comprising:
Compressor;
The first heat exchanger;
The second heat exchanger;
The 3rd heat exchanger; And
At least one expansion valve, this at least one expansion valve is arranged in the downstream position of the 3rd heat exchanger,
Wherein, described first, second, and third heat exchanger shares described at least one expansion valve, and described at least one expansion valve is arranged between described the 3rd heat exchanger and described the first and second heat exchangers.
2. heat pump according to claim 1, is characterized in that,
This heat pump is exercisable in a plurality of patterns, and the plurality of pattern comprises refrigeration mode, heating mode, hot water pattern, heat recovery mode, heating and hot water pattern and defrosting mode simultaneously.
3. heat pump according to claim 1, is characterized in that,
Also comprise air injection enthalpy-increasing EVI parts, these EVI parts are arranged in the import of described at least one expansion valve.
4. heat pump according to claim 3, is characterized in that,
Described EVI parts comprise EVI expansion valve and economizer, and the outlet of described EVI expansion valve is connected with the inlet fluid of described compressor.
5. heat pump according to claim 1, is characterized in that,
A downstream that is arranged in described expansion valve of described the first and second heat exchangers, and another of described the first and second heat exchangers is arranged in the upstream of described expansion valve.
6. heat pump according to claim 1, is characterized in that,
Also comprise cross valve and the first and second valves in parallel, described the first and second valves are connected with the outlet fluid of described compressor, described cross valve and described the first valve fluid are connected in downstream position, and described second valve is connected with the inlet fluid of described the 3rd heat exchanger.
7. heat pump according to claim 6, is characterized in that,
Described in each, the first and second heat exchangers have the input/output end port being connected with described cross valve fluid.
8. heat pump according to claim 1, is characterized in that,
Described the 3rd heat exchanger is the hot water heat exchanger that is configured to provide hot water.
9. heat pump according to claim 1, is characterized in that,
When in described first, second, and third heat exchanger one is idle, the heat exchanger storing liquid cold-producing medium that this is idle.
CN201320888597.9U 2012-12-31 2013-12-30 Heat pump system Active CN203880998U (en)

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PCT/CN2012/088123 WO2014101225A1 (en) 2012-12-31 2012-12-31 Heat pump water heater
CN201320888597.9U CN203880998U (en) 2012-12-31 2013-12-30 Heat pump system

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105157270A (en) * 2015-09-24 2015-12-16 无锡同方人工环境有限公司 Low-environment-temperature air source heat pump system with undercooling loop
DE202017104807U1 (en) 2016-08-30 2017-08-25 Nikolai V. Anastasov Water-water / air-water heat pump with heat recovery
CN108168137A (en) * 2017-12-28 2018-06-15 广东志高暖通设备股份有限公司 A kind of module water dispenser system and low form module water dispenser equipment

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105157270A (en) * 2015-09-24 2015-12-16 无锡同方人工环境有限公司 Low-environment-temperature air source heat pump system with undercooling loop
DE202017104807U1 (en) 2016-08-30 2017-08-25 Nikolai V. Anastasov Water-water / air-water heat pump with heat recovery
CN108168137A (en) * 2017-12-28 2018-06-15 广东志高暖通设备股份有限公司 A kind of module water dispenser system and low form module water dispenser equipment

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