CN106766308A - Suitable for the CO of extremely cold area2Overlapping heat pump and its control method - Google Patents
Suitable for the CO of extremely cold area2Overlapping heat pump and its control method Download PDFInfo
- Publication number
- CN106766308A CN106766308A CN201611202425.6A CN201611202425A CN106766308A CN 106766308 A CN106766308 A CN 106766308A CN 201611202425 A CN201611202425 A CN 201611202425A CN 106766308 A CN106766308 A CN 106766308A
- Authority
- CN
- China
- Prior art keywords
- valve
- heat
- capillary
- heat pump
- compressor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
- F25B1/10—Compression machines, plants or systems with non-reversible cycle with multi-stage compression
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
-
- 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
-
- 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
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
-
- 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
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
-
- 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
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/37—Capillary tubes
-
- 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
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/002—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
- F25B9/008—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant the refrigerant being carbon dioxide
-
- 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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
- F25B2313/02741—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using one four-way valve
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The present invention discloses a kind of CO suitable for extremely cold area2Overlapping heat pump and its control method, are related to technical field of heat pumps, to solve existing CO2The energy consumed in overlapping heat pump can only lack two grades of problems for utilizing to the energy for freezing.CO suitable for extremely cold area of the present invention2Overlapping heat pump, including：Carbon dioxide heat-pump kind of refrigeration cycle, common heat pump refrigeration cycle and the 3rd cooling and warming water circulation；3rd cooling and warming water circulation includes the second capillary and heat exchanger that set gradually, and heat exchanger is communicated with the first compressor by reversal valve, and the first compressor has been sequentially communicated water heater, outdoor heat exchanger and the second capillary by reversal valve.Due to being provided with water heater between the first compressor and outdoor heat exchanger in the 3rd cooling and warming water cycle process, therefore, it is possible to make the CO suitable for extremely cold area2Overlapping heat pump realizes the function of water heating while refrigeration, so as to effectively realize two grades of utilizations of the energy.
Description
Technical field
The present invention relates to technical field of heat pumps, more particularly to a kind of CO suitable for extremely cold area2Overlapping heat pump and
Its control method.
Background technology
Heat pump be it is a kind of can be by the device of the heat energy transfer of low level heat energy to high-order thermal source, typically first from the sky of nature
Low grade heat energy is obtained in gas and water or soil, is done work by electric power, the high-grade heat that then can be utilized to people's offer again
Energy.
Specifically, CO2Overlapping heat pump can be mainly used in the freezing and refrigeration of food, crop seeds preservation with
And the field such as Refrigeration System in Supermarkets, it has two sets of circulatory systems, and a set of is that the gas for being used as low-temperature zone by carbon dioxide is followed
Ring, another set of is that, by the liquid circulation as high temperature section such as freon, and two sets of circulatory systems can be by evaporative condenser
It is linked togather, and the effect in the case where evaporative condenser is in cooling condition to realize heat exchange, freeze.
However, present inventor has found, due to existing CO2The energy consumed in overlapping heat pump can only be used for
Refrigeration, therefore lack two grades of utilizations to the energy.
The content of the invention
It is an object of the invention to provide a kind of overlay heat pump and its control method, to solve existing CO2Overlapping
The energy consumed in heat pump can only lack two grades of technical problems for utilizing to the energy for freezing.
The present invention provides a kind of CO suitable for extremely cold area2Overlapping heat pump, including：Carbon dioxide heat-pump refrigeration is followed
Ring, common heat pump refrigeration cycle and the 3rd cooling and warming water circulation；The 3rd cooling and warming water circulation includes what is set gradually
Second capillary and heat exchanger, the heat exchanger are communicated with the first compressor by reversal valve, and first compressor passes through
The reversal valve has been sequentially communicated water heater, outdoor heat exchanger and second capillary.
Wherein, be provided between second capillary and the heat exchanger the 3rd control valve, the reversal valve with it is described
The 4th control valve is provided between water heater.
Specifically, the first fluid reservoir, the outdoor heat exchanger are provided between the reversal valve and first compressor
The 3rd fluid reservoir is provided between second capillary.
During practical application, the carbon dioxide heat-pump kind of refrigeration cycle includes the expansion valve, the outdoor heat exchange that set gradually
Device, internal exchanger, the second compressor and evaporative condenser, and the evaporative condenser by the internal exchanger with it is described
Expansion valve is connected.
The common heat pump refrigeration cycle includes the first capillary and the evaporative condenser that set gradually, the evaporation
Condenser is communicated with first fluid reservoir and first compressor by the reversal valve, and first compressor passes through
The reversal valve has been sequentially communicated the heat exchanger and first capillary.
Wherein, be provided with the first control valve between the evaporative condenser and the reversal valve, the heat exchanger with it is described
The second control valve is provided between first capillary.
Specifically, it is provided with the second fluid reservoir between the second control valve and first capillary.
Further, the reversal valve is four-way reversing valve.
Further, the first control valve, the second control valve, the 3rd control valve and the 4th control
Valve is magnetic valve.
Relative to prior art, the CO suitable for extremely cold area of the present invention2Overlapping heat pump has following excellent
Gesture：
The CO suitable for extremely cold area that the present invention is provided2In overlapping heat pump, including：Carbon dioxide heat-pump refrigeration is followed
Ring, common heat pump refrigeration cycle and the 3rd cooling and warming water circulation；3rd cooling and warming water circulation includes set gradually the
Two capillaries and heat exchanger, heat exchanger are communicated with the first compressor by reversal valve, and the first compressor passes through reversal valve successively
It is communicated with water heater, outdoor heat exchanger and the second capillary.Thus analysis understands, the present invention provide suitable for extremely cold area
CO2In overlapping heat pump, due to being set between the first compressor and outdoor heat exchanger in the 3rd cooling and warming water cycle process
Water heater is equipped with, therefore, it is possible to make the CO suitable for extremely cold area2Overlapping heat pump realizes the work(of water heating while refrigeration
Can, so as to effectively realize two grades of utilizations of the energy.
The present invention also provides a kind of CO suitable for extremely cold area2The control method of overlapping heat pump, it is described to be applied to
The CO of extremely cold area2Overlapping heat pump includes：3rd cooling and warming water circulation, carbon dioxide heat-pump kind of refrigeration cycle and ordinary hot
Pump kind of refrigeration cycle；The 3rd cooling and warming water circulation includes the second capillary, the 3rd control valve, the heat exchanger that set gradually,
The heat exchanger is communicated with the first compressor by reversal valve, and first compressor has been sequentially communicated by the reversal valve
4th control valve, water heater, outdoor heat exchanger and second capillary；The carbon dioxide heat-pump kind of refrigeration cycle is included successively
The expansion valve of setting, the outdoor heat exchanger, internal exchanger, the second compressor and evaporative condenser, and the evaporative condenser
Device is connected by the internal exchanger with the expansion valve；The common heat pump refrigeration cycle includes first mao set gradually
Tubule and the evaporative condenser, the evaporative condenser are communicated with described first through the first control valve and by the reversal valve
Compressor, and first compressor has been sequentially communicated the heat exchanger, the second control valve and described the by the reversal valve
One capillary；The CO suitable for extremely cold area2The control method of overlapping heat pump includes：Cooling in summer is while water heating
Operating mode and winter heating's operating mode；The cooling in summer heats water condition and comprises the following steps simultaneously：Close the first control valve
With the described second control valve, the 3rd control valve and the 4th control valve are opened, and the reversal valve is adjusted to the mould that freezes
Formula；Refrigeration working medium enters the heat exchanger after second capillary by the described 3rd control valve；Sequentially passed through after heat absorption
After the reversal valve and first compressor compresses, once exchanged heat into the water heater；Pass through the room after heat release
External heat exchanger carries out secondary heat exchange heat release；Second capillary is back to after heat release and completes refrigeration while heating water circulation；It is described
Winter heating's operating mode comprises the following steps：The 3rd control valve and the 4th control valve are closed, first control is opened
Valve and the second control valve, and the reversal valve is adjusted to heating mode；Low-temperature zone refrigerant carbon dioxide is by described swollen
Swollen valve enters the outdoor heat exchanger, and absorbs outdoor heat；By entering second compressor after the internal exchanger；
Enter the evaporative condenser after second compressor compresses, the expansion valve is back to after heat release and low-temperature zone is completed and followed
Ring；The refrigerant working medium of high temperature section absorbs low-temperature zone heat and is changed through first capillary into the evaporative condenser
Heat；After sequentially passing through the reversal valve and first compressor compresses, into the heat exchanger；Described first is back to after heat release
Capillary simultaneously completes high temperature section circulation.
The CO suitable for extremely cold area2The control method of overlapping heat pump and the above-mentioned CO suitable for extremely cold area2
Overlapping heat pump has the advantage that identical relative to prior art, will not be repeated here.
Brief description of the drawings
In order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art, below will be to specific
The accompanying drawing to be used needed for implementation method or description of the prior art is briefly described, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the CO suitable for extremely cold area provided in an embodiment of the present invention2The structural representation of overlapping heat pump；
Fig. 2 is the CO suitable for extremely cold area provided in an embodiment of the present invention2Cooling in summer is simultaneously in overlapping heat pump
Water heating flows to schematic diagram；
Fig. 3 is the CO suitable for extremely cold area provided in an embodiment of the present invention2The stream of winter heating in overlapping heat pump
To schematic diagram；
Fig. 4 is the CO suitable for extremely cold area provided in an embodiment of the present invention2The stream of the control method of overlapping heat pump
Journey schematic diagram.
In figure：1- expansion valves；2- outdoor heat exchangers；3- internal exchangers；The compressors of 4- second；5- the 4th is controlled
Valve；The capillaries of 6- second；The fluid reservoirs of 7- the 3rd；8- the 3rd controls valve；9- second controls valve；The fluid reservoirs of 10- second；
The capillaries of 11- first；12- evaporative condensers；13- first controls valve；The fluid reservoirs of 14- first；The compressors of 15- first；
16- reversal valves；17- heat exchangers；18- water heaters.
Specific embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation
Example is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", D score, "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outward " be based on orientation shown in the drawings or position relationship, merely to
Be easy to the description present invention and simplify describe, rather than indicate imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.Additionally, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that indicating or implying relative importance.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Company ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected；Can
Being to mechanically connect, or be electrically connected；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be with
It is two connections of element internal.For the ordinary skill in the art, can understand that above-mentioned term exists with concrete condition
Concrete meaning in the present invention.
Fig. 1 is the CO suitable for extremely cold area provided in an embodiment of the present invention2The structural representation of overlapping heat pump.
As shown in figure 1, the embodiment of the present invention provides a kind of CO suitable for extremely cold area2Overlapping heat pump, including：Two
Carbonoxide heat pump refrigeration cycle, common heat pump refrigeration cycle and the 3rd cooling and warming water circulation；3rd cooling and warming water circulation bag
The second capillary 6 and heat exchanger 17 for setting gradually are included, heat exchanger 17 is communicated with the first compressor 15, and by reversal valve 16
One compressor 15 has been sequentially communicated water heater 18, the capillary 6 of outdoor heat exchanger 2 and second by reversal valve 16.
Relative to prior art, the CO suitable for extremely cold area described in the embodiment of the present invention2Overlapping heat pump has
Following advantage：
CO suitable for extremely cold area provided in an embodiment of the present invention2In overlapping heat pump, as shown in figure 1, including：Two
Carbonoxide heat pump refrigeration cycle, common heat pump refrigeration cycle and the 3rd cooling and warming water circulation；3rd cooling and warming water circulation
Including the second capillary 6 for setting gradually and heat exchanger 17, heat exchanger 17 is communicated with the first compressor 15 by reversal valve 16, and
First compressor 15 has been sequentially communicated water heater 18, the capillary 6 of outdoor heat exchanger 2 and second by reversal valve 16.Thus analyze
Understand, the CO suitable for extremely cold area provided in an embodiment of the present invention2In overlapping heat pump, because the 3rd refrigerated medium hot water is followed
Water heater 18 is provided between the first compressor 15 and outdoor heat exchanger 2 during ring, extremely trembles with fear ground therefore, it is possible to make to be applied to
The CO in area2Overlapping heat pump realizes the function of water heating while refrigeration, so as to effectively realize two grades of utilizations of the energy.
Wherein, for the ease of make be applied to extremely cold area CO2Overlapping heat pump cooling in summer simultaneously water heating with
Switched between the two operating modes of winter heating, as shown in figure 1, can be set between above-mentioned second capillary 6 and heat exchanger 17
The 3rd control valve 8 is equipped with, the 4th control valve 5 can be provided between reversal valve 16 and water heater 18.Therefore, when the 3rd controls valve
8 and the 4th control valve 5 open (other control valves close) and when reversal valve 16 is in refrigeration mode, it is adaptable to extremely cold area
CO2Overlapping heat pump is at cooling in summer while heating water condition；When the 3rd control control valve 5 of valve 8 and the 4th is closed
When (corresponding control valve open) and reversal valve 16 are in heating mode, it is adaptable to the CO of extremely cold area2Overlapping heat pump can
In winter heating's operating mode.
Specifically, as shown in figure 1, the first fluid reservoir can be provided between the compressor 15 of above-mentioned reversal valve 16 and first
14, can be provided with the 3rd fluid reservoir 7 between the capillary 6 of outdoor heat exchanger 2 and second.Firstth, the 3rd fluid reservoir (14,7) energy
Enough play a part of to store refrigerant, additionally it is possible to play a part of slow pressure and point liquid.
During practical application, the CO suitable for extremely cold area provided in an embodiment of the present invention2In overlapping heat pump, such as Fig. 1
Shown, carbon dioxide heat-pump kind of refrigeration cycle can include the expansion valve 1, outdoor heat exchanger 2, internal exchanger 3, that set gradually
Two compressors 4 and evaporative condenser 12, and the evaporative condenser 12 connected by internal exchanger 3 with expansion valve 1；Common heat pump
Kind of refrigeration cycle can include the first capillary 11 and evaporative condenser 12 that set gradually, and the evaporative condenser 12 passes through reversal valve
16 are communicated with the first fluid reservoir 14 and the first compressor 15, and first compressor 15 has been sequentially communicated heat exchange by reversal valve 16
The capillary 11 of device 17 and first, so as to carbon dioxide heat-pump kind of refrigeration cycle and common heat pump refrigeration cycle can make to be applied to extremely tremble with fear
The CO in area2Overlapping heat pump effectively realizes the effect of winter heating.
Herein it should be added that, the capillary 6 of above-mentioned first capillary 11 and second can function similarly to expansion
The effect of valve.
Wherein, as shown in figure 1, the first control valve 13 can be provided between above-mentioned evaporative condenser 12 and reversal valve 16,
The second control valve 9 can be provided between the capillary 11 of heat exchanger 17 and first；Specifically, above-mentioned second control valve 9 and first
The second fluid reservoir 10 is also provided between capillary 11.
Fig. 2 is the CO suitable for extremely cold area provided in an embodiment of the present invention2Cooling in summer is simultaneously in overlapping heat pump
Water heating flows to schematic diagram；Fig. 3 is the CO suitable for extremely cold area provided in an embodiment of the present invention2Winter in overlapping heat pump
What is heated in season flows to schematic diagram.
Further, it is provided in an embodiment of the present invention suitable for extremely trembling with fear ground in order to easily realize two conversions of operating mode
The CO in area2In overlapping heat pump, above-mentioned reversal valve 16 can be preferably four-way reversing valve.When actually used, when four-way commutation
When valve is in refrigeration mode, as shown in Fig. 2 the flow direction in the 3rd cooling and warming water circulation is successively by heat exchanger 17, reversal valve
16th, the first fluid reservoir 14, the first compressor 15 and through reversal valve 16 to the 4th control valve 5 and water heater 18 and outdoor heat exchanger
2；When four-way reversing valve is in heating mode, as shown in figure 3, the flow direction in common heat pump refrigeration cycle is cold by evaporating successively
The control of condenser 12, first valve 13, reversal valve 16, the first fluid reservoir 14, the first compressor 15 and through reversal valve 16 to heat exchanger
17。
Further, in order to realize automatically controlling, the CO suitable for extremely cold area provided in an embodiment of the present invention2Overlapping
In heat pump, above-mentioned first control valve 13, second control valve the 9, the 3rd control control valve 5 of valve 8 and the 4th can be electromagnetism
Valve.
Fig. 4 is the CO suitable for extremely cold area provided in an embodiment of the present invention2The stream of the control method of overlapping heat pump
Journey schematic diagram.
The embodiment of the present invention also provides a kind of CO suitable for extremely cold area2The control method of overlapping heat pump, such as schemes
Shown in 1- Fig. 3, it is adaptable to the CO of extremely cold area2Overlapping heat pump includes：3rd cooling and warming water circulation, carbon dioxide heat
Pump kind of refrigeration cycle and common heat pump refrigeration cycle；3rd cooling and warming water circulation includes the second capillary 6, that set gradually
Three control valves 8, heat exchanger 17, heat exchanger 17 is communicated with the first compressor 15 by reversal valve 16, and the first compressor 15 passes through
Reversal valve 16 has been sequentially communicated the 4th control valve 5, water heater 18, the capillary 6 of outdoor heat exchanger 2 and second；Carbon dioxide heat
Pump kind of refrigeration cycle includes the expansion valve 1, outdoor heat exchanger 2, internal exchanger 3, the second compressor 4 and the evaporative condenser that set gradually
Device 12, and evaporative condenser 12 connected by internal exchanger 3 with expansion valve 1；The common heat pump refrigeration cycle includes setting successively
The first capillary 11 and evaporative condenser 12 put, evaporative condenser 12 are communicated with through the first control valve 13 and by reversal valve 16
First compressor 15, and the first compressor 15 has been sequentially communicated heat exchanger 17, second control valve 9 and first mao by reversal valve 16
Tubule 11.As shown in Figure 4, it is adaptable to the CO of extremely cold area2The control method of overlapping heat pump includes：Cooling in summer is made simultaneously
Hot water operating mode and winter heating's operating mode；With reference to shown in Fig. 2, above-mentioned cooling in summer heats water condition simultaneously can include following step
Suddenly：Step S11, closing first control the control valve 9 of valve 13 and second, open the 3rd and control valve 8 and the 4th to control valve 5, and will change
Refrigeration mode is adjusted to valve 16；Step S12, refrigeration working medium enter heat exchanger after the second capillary 6 by the 3rd control valve 8
17；After the compression of 16 and first compressor of reversal valve 15 is sequentially passed through after step S13, heat absorption, once changed into water heater 18
Heat；Secondary heat exchange heat release is carried out by outdoor heat exchanger 2 after step S14, heat release；The second capillary is back to after step S15, heat release
6 complete refrigeration heats water circulation simultaneously；With reference to shown in Fig. 3, above-mentioned winter heating's operating mode may include steps of：Step S21,
The 3rd control control valve 5 of valve 8 and the 4th is closed, first is opened and is controlled the control valve 9 of valve 13 and second, and reversal valve 16 is adjusted to system
Heat pattern；Step S22, low-temperature zone refrigerant carbon dioxide enter outdoor heat exchanger 2 by expansion valve 1, and absorb outdoor heat；
Step S23, by after internal exchanger 3 enter the second compressor 4；Step S24, through the second compressor 4 compress after enter evaporation
Condenser 12, is back to expansion valve 1 and completes low-temperature zone circulation after heat release；Step S31, the refrigerant working medium of high temperature section are through first mao
Tubule 11 absorbs low-temperature zone heat and is exchanged heat into evaporative condenser 12；Step S32, sequentially pass through reversal valve 16 and first
After compressor 15 compresses, into heat exchanger 17；The first capillary 11 is back to after step S33, heat release and high temperature section circulation is completed.
Herein it should be added that, during winter heating's operating mode, low-temperature zone refrigerant first circulate after high temperature section refrigerant
Recycling, and low-temperature zone refrigerant can be continued cycling through as needed during high temperature section refrigerant circulation.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all in essence of the invention
Within god and principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (10)
1. a kind of CO suitable for extremely cold area2Overlapping heat pump, it is characterised in that including：Carbon dioxide heat-pump refrigeration is followed
Ring, common heat pump refrigeration cycle and the 3rd cooling and warming water circulation；
The 3rd cooling and warming water circulation includes the second capillary and heat exchanger that set gradually, and the heat exchanger is by commutation
Valve is communicated with the first compressor, and first compressor has been sequentially communicated water heater, outdoor heat exchanger by the reversal valve
With second capillary.
2. the CO suitable for extremely cold area according to claim 12Overlapping heat pump, it is characterised in that described second mao
The 3rd control valve is provided between tubule and the heat exchanger, the 4th control is provided between the reversal valve and the water heater
Valve.
3. the CO suitable for extremely cold area according to claim 22Overlapping heat pump, it is characterised in that the reversal valve
The first fluid reservoir is provided between first compressor, is provided between the outdoor heat exchanger and second capillary
3rd fluid reservoir.
4. the CO suitable for extremely cold area according to claim 32Overlapping heat pump, it is characterised in that the titanium dioxide
Carbon heat pump refrigeration cycle includes the expansion valve, the outdoor heat exchanger, internal exchanger, the second compressor and the evaporation that set gradually
Condenser, and the evaporative condenser connected by the internal exchanger with the expansion valve.
5. the CO suitable for extremely cold area according to claim 42Overlapping heat pump, it is characterised in that the ordinary hot
Pump kind of refrigeration cycle includes the first capillary and the evaporative condenser that set gradually, and the evaporative condenser is by the commutation
Valve is communicated with first fluid reservoir and first compressor, and first compressor is sequentially communicated by the reversal valve
There are the heat exchanger and first capillary.
6. the CO suitable for extremely cold area according to claim 52Overlapping heat pump, it is characterised in that the evaporation is cold
The first control valve is provided between condenser and the reversal valve, second is provided between the heat exchanger and first capillary
Control valve.
7. the CO suitable for extremely cold area according to claim 62Overlapping heat pump, it is characterised in that second control
The second fluid reservoir is provided between valve processed and first capillary.
8. the CO suitable for extremely cold area according to claim 12Overlapping heat pump, it is characterised in that the reversal valve
It is four-way reversing valve.
9. the CO suitable for extremely cold area according to claim 62Overlapping heat pump, it is characterised in that first control
Valve processed, the second control valve, the 3rd control valve and the 4th control valve are magnetic valve.
10. a kind of CO suitable for extremely cold area2The control method of overlapping heat pump, it is characterised in that described suitable for extremely trembling with fear
The CO in area2Overlapping heat pump includes：3rd cooling and warming water circulation, carbon dioxide heat-pump kind of refrigeration cycle and common heat pump system
SAPMAC method；
The 3rd cooling and warming water circulation includes the second capillary, the 3rd control valve, the heat exchanger, the heat exchange that set gradually
Device is communicated with the first compressor by reversal valve, and first compressor has been sequentially communicated the 4th control by the reversal valve
Valve, water heater, outdoor heat exchanger and second capillary；
The carbon dioxide heat-pump kind of refrigeration cycle includes the expansion valve, the outdoor heat exchanger, internal exchanger, that set gradually
Two compressors and evaporative condenser, and the evaporative condenser connected by the internal exchanger with the expansion valve；
The common heat pump refrigeration cycle includes the first capillary and the evaporative condenser that set gradually, the evaporative condenser
Device is communicated with first compressor through the first control valve and by the reversal valve, and first compressor is changed by described
The heat exchanger, the second control valve and first capillary have been sequentially communicated to valve；
The CO suitable for extremely cold area2The control method of overlapping heat pump includes：Cooling in summer heat simultaneously water condition and
Winter heating's operating mode；
The cooling in summer heats water condition and comprises the following steps simultaneously：Close the first control valve and second control
Valve, opens the 3rd control valve and the 4th control valve, and the reversal valve is adjusted into refrigeration mode；Refrigeration working medium is through institute
The heat exchanger is entered by the described 3rd control valve after stating the second capillary；The reversal valve and described is sequentially passed through after heat absorption
After first compressor compresses, once exchanged heat into the water heater；Carried out by the outdoor heat exchanger after heat release secondary
Heat exchange heat release；Second capillary is back to after heat release and completes refrigeration while heating water circulation；
Winter heating's operating mode comprises the following steps：The 3rd control valve and the 4th control valve are closed, opens described
First control valve and the second control valve, and the reversal valve is adjusted to heating mode；Low-temperature zone refrigerant carbon dioxide is passed through
The expansion valve into the outdoor heat exchanger is crossed, and absorbs outdoor heat；By entering described the after the internal exchanger
Two compressors；Enter the evaporative condenser after second compressor compresses, the expansion valve is back to after heat release and is completed
Low-temperature zone is circulated；The refrigerant working medium of high temperature section enters the evaporative condenser and absorbs low-temperature zone heat through first capillary
And exchanged heat；After sequentially passing through the reversal valve and first compressor compresses, into the heat exchanger；It is back to after heat release
First capillary simultaneously completes high temperature section circulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611202425.6A CN106766308A (en) | 2016-12-22 | 2016-12-22 | Suitable for the CO of extremely cold area2Overlapping heat pump and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611202425.6A CN106766308A (en) | 2016-12-22 | 2016-12-22 | Suitable for the CO of extremely cold area2Overlapping heat pump and its control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106766308A true CN106766308A (en) | 2017-05-31 |
Family
ID=58897606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611202425.6A Pending CN106766308A (en) | 2016-12-22 | 2016-12-22 | Suitable for the CO of extremely cold area2Overlapping heat pump and its control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106766308A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107328102A (en) * | 2017-08-18 | 2017-11-07 | 中国扬子集团滁州扬子空调器有限公司 | A kind of carbon dioxide combined heat pump hot water and air-conditioning system and its control method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001263801A (en) * | 2000-03-24 | 2001-09-26 | Daikin Ind Ltd | Heat pump water heater |
| CN2682344Y (en) * | 2003-12-11 | 2005-03-02 | 河南新飞电器有限公司 | Heat pump installation for cold area |
| CN101303182A (en) * | 2008-07-03 | 2008-11-12 | 上海理工大学 | Cross critical CO2/R22 heat pump air conditioner and hot water triple feeding method |
| CN101650097A (en) * | 2009-09-07 | 2010-02-17 | 纽恩泰热能科技发展（昆明）有限公司 | Hot-water system of air-condition directly-heated air-source heat pump |
| CN103697613A (en) * | 2013-12-28 | 2014-04-02 | 金国达科技（湖南）有限公司 | High-temperature water source heat pump unit |
| CN104819591A (en) * | 2015-04-24 | 2015-08-05 | 河南佰衡节能技术有限公司 | Agricultural local product heating pump drying device with refrigeration function |
| CN106016802A (en) * | 2016-07-01 | 2016-10-12 | 杭州佳力斯韦姆新能源科技有限公司 | Cascade CO2 heat pump capable of achieving defrosting through reversing of four-way valve and defrosting method of cascade CO2 heat pump |
| CN206399032U (en) * | 2016-12-22 | 2017-08-11 | 刘勇 | Suitable for the CO of extremely cold area2Overlapping heat pump |
-
2016
- 2016-12-22 CN CN201611202425.6A patent/CN106766308A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001263801A (en) * | 2000-03-24 | 2001-09-26 | Daikin Ind Ltd | Heat pump water heater |
| CN2682344Y (en) * | 2003-12-11 | 2005-03-02 | 河南新飞电器有限公司 | Heat pump installation for cold area |
| CN101303182A (en) * | 2008-07-03 | 2008-11-12 | 上海理工大学 | Cross critical CO2/R22 heat pump air conditioner and hot water triple feeding method |
| CN101650097A (en) * | 2009-09-07 | 2010-02-17 | 纽恩泰热能科技发展（昆明）有限公司 | Hot-water system of air-condition directly-heated air-source heat pump |
| CN103697613A (en) * | 2013-12-28 | 2014-04-02 | 金国达科技（湖南）有限公司 | High-temperature water source heat pump unit |
| CN104819591A (en) * | 2015-04-24 | 2015-08-05 | 河南佰衡节能技术有限公司 | Agricultural local product heating pump drying device with refrigeration function |
| CN106016802A (en) * | 2016-07-01 | 2016-10-12 | 杭州佳力斯韦姆新能源科技有限公司 | Cascade CO2 heat pump capable of achieving defrosting through reversing of four-way valve and defrosting method of cascade CO2 heat pump |
| CN206399032U (en) * | 2016-12-22 | 2017-08-11 | 刘勇 | Suitable for the CO of extremely cold area2Overlapping heat pump |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107328102A (en) * | 2017-08-18 | 2017-11-07 | 中国扬子集团滁州扬子空调器有限公司 | A kind of carbon dioxide combined heat pump hot water and air-conditioning system and its control method |
| CN107328102B (en) * | 2017-08-18 | 2024-02-09 | 安徽扬子空调股份有限公司 | Carbon dioxide composite heat pump hot water and air conditioning system and control method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102753914B (en) | Air conditioner and air-conditioning hot-water-supplying system | |
| US20100038441A1 (en) | Energy system with a heat pump | |
| CN106322595A (en) | Refrigeration and dehumidification system, refrigeration and dehumidification method and refrigeration and dehumidification air conditioner for data centres | |
| CN102753916B (en) | Air-conditioning hot-water-supply system | |
| CN203771604U (en) | Parallel type active heat-tube heat-pump air-conditioner integrated machine | |
| CN105627625B (en) | Heat pump and the mixing heating flow of hot water heating combined system | |
| CN106123396A (en) | The heat pump that a kind of solar energy heating/vaporizer is combined with finned evaporator | |
| CN105157274B (en) | cooling/heating system | |
| CN213272984U (en) | Heat exchange system and air conditioner with same | |
| CN106524552A (en) | CO2 cascaded heat pump system and heat pump equipment unit suitable for extremely cold area | |
| CN106871485B (en) | A kind of heat pump system and its control method | |
| CN206399032U (en) | Suitable for the CO of extremely cold area2Overlapping heat pump | |
| CN106766308A (en) | Suitable for the CO of extremely cold area2Overlapping heat pump and its control method | |
| CN101592416B (en) | Cooling and heating system with cooling-heating source complementing loop | |
| CN205939816U (en) | Heat pump that solar energy collection evaporimeter and finned evaporator combine | |
| CN206399031U (en) | Suitable for the CO of extremely cold area2The heat pump and heat-pump apparatus unit of overlapping | |
| CN206399033U (en) | Suitable for the CO of extremely cold area2Overlapping heat pump | |
| CN206362008U (en) | Suitable for the CO of extremely cold area2Overlapping heat pump and heat-pump apparatus unit | |
| CN106766312A (en) | Suitable for the CO of extremely cold area2The heat pump and its control method of overlapping | |
| CN206387138U (en) | Suitable for the CO of extremely cold area2The heat pump and heat-pump apparatus unit of overlapping | |
| CN112082236A (en) | Heat exchange system, air conditioner and control method of air conditioner | |
| CN106500380A (en) | It is applied to the CO of extremely cold area2Overlapping heat pump and its control method | |
| CN207035566U (en) | Compressor heat retracting device and compressor heat recovery system | |
| CN106642781A (en) | CO2 cascade heat pump system suitable for extremely cold areas and control method thereof | |
| CN203908106U (en) | Refrigerating and water-heating loop of heat pump and hot water system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170531 |
|
| RJ01 | Rejection of invention patent application after publication |