CN115235141A - Efficient defrosting heat pump type small air conditioner - Google Patents
Efficient defrosting heat pump type small air conditioner Download PDFInfo
- Publication number
- CN115235141A CN115235141A CN202210825144.5A CN202210825144A CN115235141A CN 115235141 A CN115235141 A CN 115235141A CN 202210825144 A CN202210825144 A CN 202210825144A CN 115235141 A CN115235141 A CN 115235141A
- Authority
- CN
- China
- Prior art keywords
- control valve
- heat exchange
- exchange tube
- outlet
- heat exchanger
- 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.)
- Granted
Links
- 238000010257 thawing Methods 0.000 title claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- 238000006243 chemical reaction Methods 0.000 claims abstract description 24
- 238000010438 heat treatment Methods 0.000 claims description 37
- 238000005057 refrigeration Methods 0.000 claims description 8
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 239000003507 refrigerant Substances 0.000 description 54
- 230000001965 increasing effect Effects 0.000 description 19
- 238000000034 method Methods 0.000 description 8
- 238000009833 condensation Methods 0.000 description 6
- 230000005494 condensation Effects 0.000 description 6
- 238000001816 cooling Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000004075 alteration Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 231100000989 no adverse effect Toxicity 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Images
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
- F25B13/00—Compression machines, plants or systems, with reversible cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/14—Heat exchangers specially adapted for separate outdoor units
-
- 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
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
- F25B47/022—Defrosting cycles hot gas defrosting
- F25B47/025—Defrosting cycles hot gas defrosting by reversing the cycle
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The invention discloses a heat pump type small air conditioner for efficiently defrosting, which comprises a compressor, an outdoor heat exchanger, an indoor heat exchanger and a throttling element, wherein the outdoor heat exchanger comprises six heat exchange tube groups, and a first heat exchange tube group, a third heat exchange tube group and a fifth heat exchange tube group are connected in parallel to form a first main inlet/outlet A and a second main inlet/outlet B of the outdoor heat exchanger; the heat exchange tube group II, the heat exchange tube group IV and the heat exchange tube group VI are respectively connected in parallel to the main inlet and outlet I and the main inlet and outlet II through control valves and are also respectively connected in parallel to the collecting pipe C and the collecting pipe D through control valves; the collecting pipe C is connected to a pipeline between the outlet of the compressor and the first connector of the four-way conversion valve; the collecting pipe D is connected to a pipeline between the first inlet/outlet of the indoor heat exchanger and the throttling element; the invention is suitable for small-sized air conditioners, has the advantages of quick defrosting, low energy consumption and uninterrupted output hot air, can normally operate at ultralow temperature by only using one common compressor, does not need an auxiliary heat source, and can also generate high-temperature hot air or high-temperature hot water.
Description
Technical Field
The present invention relates to a thermal device, and more particularly, to an air conditioner using air energy for cooling and heating.
Background
The prior art heat pump type air conditioner often frosts in spring in autumn, winter, and defrosting methods generally comprise an electric heater defrosting method and a reverse operation defrosting method. The defrosting method of the electric heater has long defrosting time, large energy consumption and less application. The defrosting method is operated reversely, the direction is changed by the four-way valve, the refrigeration mode is switched, heat is absorbed from a heating heat source at a user side for defrosting, and the room temperature at the user side is reduced or cold air is blown indoors; after defrosting is finished, the air conditioner needs to be stopped for protection for several minutes to recover to a heating mode, so that the compressor is frequently started and stopped, and heating temperature fluctuation and energy efficiency reduction are caused to heating operation; the heat pump type air conditioner in the prior art cannot normally operate in an ultralow temperature environment.
Disclosure of Invention
The invention aims to provide a heat pump type small air conditioner capable of efficiently defrosting aiming at the field of small air conditioners, which can overcome the defects of the prior art, has short defrosting time, low energy consumption, uninterrupted output hot air, no reduction of indoor temperature during defrosting, and can normally run without any auxiliary energy in an ultralow temperature environment.
The purpose of the invention is realized as follows: the utility model provides a high-efficient small-size air conditioner of heat pump type who changes frost, package compressor, outdoor heat exchanger, indoor heat exchanger and throttling element which characterized in that: the outlet of the compressor is connected with a four-way switching valve, and the four-way switching valve comprises four interfaces, namely an interface I, an interface II, an interface III and an interface IV; when the four-way conversion valve works, the two working states are provided, and when the four-way conversion valve works for heating, the first interface of the four-way conversion valve is communicated with the second interface, and the third interface of the four-way conversion valve is communicated with the fourth interface of the four-way conversion valve; when the refrigeration operation is carried out, the first interface of the four-way conversion valve is communicated with the fourth interface, and the second interface is communicated with the third interface;
the outdoor heat exchanger comprises six heat exchange tube sets, and each heat exchange tube set is formed by connecting a plurality of heat exchange tubes in series; from the edge of one side, the first heat exchange tube group, the third heat exchange tube group and the fifth heat exchange tube group are connected in parallel to form a first general inlet and outlet A and a second general inlet and outlet B of the outdoor heat exchanger;
one end of the heat exchange tube group II is divided into two paths, one path is connected to the first main inlet/outlet A through a control valve, the other path is connected to the collecting pipe C through a control valve III, the other end of the heat exchange tube group II is also divided into two paths, one path is connected to the second main inlet/outlet B through a control valve II, and the other path is connected to the collecting pipe D through a control valve IV;
one end of the heat exchange tube group IV is divided into two paths, one path is connected to the first main inlet/outlet A through a control valve V, the other path is connected to the collecting pipe C through a control valve VII, the other end of the heat exchange tube group IV is also divided into two paths, one path is connected to the second main inlet/outlet B through a control valve VI, and the other path is connected to the collecting pipe D through a control valve VIII;
one end of the heat exchange tube group six is divided into two paths, one path is connected to the first main inlet/outlet A through a control valve nine, the other path is connected to the collecting pipe C through a control valve eleven, the other end of the heat exchange tube group six is also divided into two paths, one path is connected to the second main inlet/outlet B through a control valve eleven, and the other path is connected to the collecting pipe D through a control valve twelve;
the second interface is connected with a second inlet and outlet of the indoor heat exchanger, a first total inlet and outlet A of the outdoor heat exchanger is connected with a fourth interface of the four-way switching valve, and a second total inlet and outlet B of the outdoor heat exchanger is connected with a first inlet and outlet of the indoor heat exchanger through a throttling element;
the collecting pipe C is connected to a pipeline between the outlet of the compressor and the first interface; the collecting pipe D is connected to a pipeline between the first inlet/outlet of the indoor heat exchanger and the throttling element;
the first heat exchange tube group and the second heat exchange tube group are provided with common heat exchange fins; the third heat exchange tube group and the fourth heat exchange tube group are provided with common heat exchange fins; and the heat exchange tube group V and the heat exchange tube group VI are provided with common heat exchange fins. The six heat exchange tube components are divided into three areas, and the common heat exchange fins are respectively and independently arranged, so that when the fins in any one area generate heat and defrost, the other areas still keep normal low-temperature absorption of air energy due to the independent arrangement of the fins.
Furthermore, a flow control valve is arranged on a pipeline of the collecting pipe C connected between the outlet of the compressor and the first connector of the four-way switching valve, or a pipeline of the collecting pipe D connected between the first inlet/outlet of the indoor heat exchanger and the throttling element; the proper opening degree of the flow control valve can ensure that the flow of the high-temperature refrigerant shunted by the branch is proper during defrosting operation or heating operation, so that the COP value of the energy efficiency ratio of the system operation is optimal.
Furthermore, the heat pump type small air conditioner for efficiently defrosting also comprises a water tank heat exchanger, wherein the inlet and the outlet of the water tank heat exchanger are divided into two paths, one path of water tank heat exchanger is connected with a second interface of a four-way change-over valve through a fifteen control valve, the other path of water tank heat exchanger is connected with a fourth interface of the four-way change-over valve through a nineteen control valve, the inlet and the outlet of the water tank heat exchanger are divided into two paths, one path of water tank heat exchanger is connected to a pipeline between the indoor heat exchanger and the throttling element through a sixteen control valve, the other path of water tank heat exchanger is connected to a tee joint E through a fourteen control valve, the tee joint E is arranged on a pipeline between a second inlet and a second outlet of the outdoor heat exchanger and the throttling element, and a seventeen control valve is further connected in series to a pipeline connected with the second inlet and the second outlet of the outdoor heat exchanger; and eighteen control valves are arranged in any one of the two pipelines which are connected with the inlet and the outlet of the indoor heat exchanger and the inlet and the outlet of the indoor heat exchanger outwards. The scheme can realize that hot water can be generated during refrigerating operation and heating operation, the application range of the air conditioning device is widened, and especially the efficiency of the hot water generated during refrigerating operation is doubled compared with that of the hot water generated during heating operation.
The invention has the beneficial effects that:
1) The defrosting is rapid, the energy consumption is low, the hot air output is uninterrupted during defrosting, and the indoor temperature is not obviously fluctuated during heating. Or the process of heating hot water in the water tank is uninterrupted during defrosting operation, the temperature of the output hot water has no obvious fluctuation, and no adverse effect is caused when the hot water is used for heating or heating materials.
2) The heat pump has the function of increasing heat, only one common compressor is adopted to realize the production of hot air or hot water with higher temperature for drying and the like at low cost, and the normal operation can be realized without an auxiliary heat source in an ultralow temperature environment.
3) The system can generate hot water while cooling the indoor in the refrigerating operation, the COP value of the system can reach more than 8, and the energy efficiency ratio of the hot water generated in the pure heating operation is doubled.
Drawings
Fig. 1 is a schematic diagram of the operation of a first structure of the present invention.
Fig. 2 is a working schematic diagram of a second structure of the present invention.
Fig. 3 is a schematic diagram of the operation of a third configuration of the present invention.
In the figure, 1 compressor, 2 indoor heat exchangers, 3 throttling elements, 4 outdoor heat exchangers, 5 heat exchange fins, 6 water tank heat exchangers, a interface I, b interface II, C interface III, D interface IV, 101 heat exchange tube group I, 102 heat exchange tube group II, 103 heat exchange tube group III, 104 heat exchange tube group IV, 105 heat exchange tube group V, 106 heat exchange tube group VI, F1 control valve I, F2 control valve II, F3 control valve III, F4 control valve IV, F5 flow control valve, F6 control valve VI, F7 control valve VII, F8 control valve VIII, F9 control valve VII, F10 control valve VIII, F11 control valve VIII, F12 control valve twelve, F13 flow control valve, F14 control valve fourteen, F15 control valve fifteen, F16 control valve sixteen, F17 control valve seventeen, F18 control valve eighteen, F19 control valve nineteen, confluence pipe C, confluence pipe D and E three-way interface are arranged.
Detailed Description
Example 1
As shown in fig. 1, the heat pump type small air conditioner for efficiently defrosting includes a compressor 1, an outdoor heat exchanger 4, an indoor heat exchanger 2 and a throttling element 3, wherein an outlet of the compressor 1 is connected with a four-way switching valve, and the four-way switching valve includes four ports, namely a port one, a port two, a port three and a port four; when the four-way conversion valve works, the first connector a of the four-way conversion valve is communicated with the second connector b, and the third connector c is communicated with the fourth connector d; when the refrigeration operation is carried out, the first interface a of the four-way conversion valve is communicated with the fourth interface d, and the second interface b is communicated with the third interface c.
The outdoor heat exchanger 4 comprises six heat exchange tube sets, and each heat exchange tube set is formed by connecting a plurality of heat exchange tubes in series; from one side edge, the first heat exchange tube group 101, the third heat exchange tube group 103 and the fifth heat exchange tube group 105 are connected in parallel to form a first general inlet and outlet A and a second general inlet and outlet B of the outdoor heat exchanger.
One end of the second heat exchange tube group 102 is divided into two paths, one path is connected to the first main inlet/outlet A through a first control valve F1, the other path is connected to the collecting pipe C through a third control valve F3, the other end of the second heat exchange tube group 102 is also divided into two paths, one path is connected to the second main inlet/outlet B through a second control valve F2, and the other path is connected to the collecting pipe D through a fourth control valve F4.
One end of the heat exchange tube group IV 104 is divided into two paths, one path is connected to the first main inlet/outlet A through a five F5 control valve, the other path is connected to the collecting pipe C through a seven F7 control valve, the other end of the heat exchange tube group IV 104 is also divided into two paths, one path is connected to the second main inlet/outlet B through a six F6 control valve, and the other path is connected to the collecting pipe D through an eight F8 control valve.
One end of the heat exchange tube group six 106 is divided into two paths, one path is connected to the first main inlet/outlet A through a nine F9 control valve, the other path is connected to the collecting pipe C through an eleven F11 control valve, the other end of the heat exchange tube group six 106 is also divided into two paths, one path is connected to the second main inlet/outlet B through an ten F10 control valve, and the other path is connected to the collecting pipe D through a twelve F12 control valve.
The second interface B is connected with the second inlet and outlet of the indoor heat exchanger 2, the first general inlet and outlet A of the outdoor heat exchanger 4 is connected with the fourth interface d of the four-way change-over valve, and the second general inlet and outlet B of the outdoor heat exchanger is connected to a connecting pipeline between the indoor heat exchanger 2 and the throttling element 3;
the collecting pipe C is connected to a pipeline between the outlet of the compressor 1 and the first connector a of the four-way conversion valve; the collecting pipe D is connected to a pipeline between the first inlet and outlet of the indoor heat exchanger 2 and the throttling element 3.
The first heat exchange tube group 101 and the second heat exchange tube group 102 are provided with common heat exchange fins; the third heat exchange tube group 103 and the fourth heat exchange tube group 104 are provided with common heat exchange fins; and the heat exchange tube group five 105 and the heat exchange tube group six 106 are provided with common heat exchange fins.
When in operation, the device has the following three operation modes.
1. Normal refrigeration operation
At this time, a first port a and a fourth port a of the four-way switching valve in fig. 1 are communicated, and a second port b and a third port c are communicated; opening a first control valve F1, a second control valve F2, a fifth control valve F5, a sixth control valve F6, a ninth control valve F9 and a tenth control valve F10, closing a third control valve F3, a fourth control valve F4, a seventh control valve F7, an eighth control valve F8, an eleventh control valve F11 and a twelfth control valve F12, connecting a second heat exchange tube group 102, a fourth heat exchange tube group 104 and a sixth heat exchange tube group 106 in parallel with a first outdoor heat exchanger main inlet and outlet A and a second outdoor heat exchanger main inlet and outlet B, compressing the refrigerant by the compressor 1, radiating the high-temperature and high-pressure refrigerant in the outdoor heat exchanger 4 through a first four-way conversion valve connector and a fourth connector successively, throttling the refrigerant after being condensed, reducing the pressure by a throttling element 3, evaporating and absorbing heat in an indoor heat exchanger 2, reducing the indoor temperature to achieve the indoor refrigeration effect, and then entering the compressor 1 through a second four-way conversion valve connector and a third connector to be compressed and discharged again to complete a working cycle. Whether the flow control valve F13 is opened or not has no influence on the normal cooling operation.
2. Normal heating operation
At this time, a first interface a and a second interface b of the four-way conversion valve in fig. 1 are communicated, and a third interface c and a fourth interface d are communicated; opening a first control valve F1, a second control valve F2, a fifth control valve F5, a sixth control valve F6, a ninth control valve F9 and a tenth control valve F10, closing a third control valve F3, a fourth control valve F4, a seventh control valve F7, an eighth control valve F8, an eleventh control valve F11 and a twelfth control valve F12, connecting a second heat exchange tube group 102, a fourth heat exchange tube group 104 and a sixth heat exchange tube group 106 in parallel with a first outdoor heat exchanger main inlet and outlet A and a second outdoor heat exchanger main inlet and outlet B, compressing the refrigerant by the compressor 1, radiating the high-temperature and high-pressure refrigerant in the indoor heat exchanger 2 through a first four-way conversion valve interface and a second interface in sequence to improve the indoor temperature, throttling and reducing the pressure by a throttling element 3 after the refrigerant is condensed, evaporating the refrigerant in the outdoor heat exchanger 4 to absorb heat and absorb the heat energy of air, and then enabling the refrigerant to enter the compressor 1 through the fourth four-way conversion valve interface and the third interface in sequence to be compressed and discharged again, and a work cycle is completed. The opening or non-opening of the flow control valve F13 has no influence on the normal cooling operation.
3. Defrosting operation
When the outdoor heat exchanger 4 frosts, as shown in fig. 1, the state of the four-way switching valve in the normal heating operation is kept unchanged, that is, the first port a of the four-way switching valve is communicated with the second port b, and the third port c is communicated with the fourth port d. The second heat exchange tube group 102 is started to defrost in turn, the flow control valve F13 is kept at a proper opening degree and is normally opened and is never closed, the first control valve F1 and the second control valve F2 are closed, and the third control valve F3 and the fourth control valve F4 are opened; opening a control valve five F5, a control valve six F6, a control valve nine F9 and a control valve ten F10, closing a control valve seven F7, a control valve eight F8, a control valve eleven F11 and a control valve twelve F12, wherein only a second heat exchange tube set 102 in six heat exchange tube sets in the outdoor heat exchanger 4 is separated from the outdoor heat exchanger 4, and one part of high-temperature gaseous refrigerant at the outlet of the compressor 1 flows through the second heat exchange tube set 102 through the third control valve F3, then flows onto a pipeline between the indoor heat exchanger 2 and a throttling element through the fourth control valve F4 and the flow control valve F13, and is converged with refrigerant subjected to heat release and condensation by the indoor heat exchanger 2; the high temperature gaseous refrigerant flowing through the second heat exchange tube bank 102 will melt frost from the heat exchange fins shared with the first heat exchange tube bank 101. Changing the frost into a heat exchange tube group IV 104 in turn; closing the control valve five F5 and the control valve six F6, and opening the control valve seven F7 and the control valve eight F8; opening a first control valve F1, a second control valve F2, a ninth control valve F9 and a tenth control valve F10, closing a third control valve F3, a fourth control valve F4, an eleventh control valve F11 and a twelfth control valve F12, wherein only a fourth heat exchange tube group 104 in six heat exchange tube groups in the outdoor heat exchanger 4 is separated from the outdoor heat exchanger 4, and one part of high-temperature gaseous refrigerant at the outlet of the compressor 1 flows through the fourth heat exchange tube group 104 through a seventh control valve F7, then flows onto a pipeline between the indoor heat exchanger 2 and a throttling element through an eighth control valve F8 and a F13, and is converged with the refrigerant subjected to heat release and condensation of the indoor heat exchanger 2; the high temperature gaseous refrigerant flowing through the fourth heat exchange tube bank 104 will melt frost from the heat exchange fins shared with the third heat exchange tube bank 103. Changing frost into a heat exchange tube group six 106 in turn; closing the control valve nine F9 and the control valve ten F10, and opening the control valve eleven F11 and the control valve twelve F12; opening a first control valve F1, a second control valve F2, a fifth control valve F5 and a sixth control valve F6, closing a third control valve F3, a fourth control valve F4, a seventh control valve F7 and an eighth control valve F8, wherein only six heat exchange tube groups 106 in the six heat exchange tube groups in the outdoor heat exchanger 4 are separated from the outdoor heat exchanger 4, and one part of high-temperature gaseous refrigerant at the outlet of the compressor 1 flows through the six heat exchange tube groups 106 through an eleventh control valve F11, then flows onto a pipeline between the indoor heat exchanger 2 and the throttling element 3 through a twelfth control valve F12 and a F13, and is converged with the refrigerant subjected to heat release and condensation by the indoor heat exchanger 2; the high temperature gaseous refrigerant flowing through heat exchange tube bank six 106 will cause frost on the heat exchange fins shared with heat exchange tube bank five 105 to melt away. And after the operation of defrosting in turn is finished, the conventional heating operation mode is recovered.
When defrosting is performed in turn, the heat exchange fins of four heat exchange tube groups in six heat exchange tube groups of the outdoor heat exchanger are always in low-temperature state to absorb heat energy of air, heat energy which is not used up before defrosting of any heat exchange tube group is also quickly absorbed by refrigerants in the adjacent heat exchange tube groups through the shared heat exchange fins, and because defrosting is quick and short in time, the indoor heat exchanger 2 which is used as a condenser in the system can still maintain output heat energy in a short time without interruption, and the temperature of output hot air is not obviously fluctuated.
4. The heating and heating operation is similar to the defrosting operation mode in fig. 1, and is a special defrosting operation, and the special defrosting operation is only carried out in a circulating reciprocating manner for a long time. The defrosting is performed in turn, namely, the heat increase is started from the second heat exchange tube group 102; firstly, closing a first control valve F1 and a second control valve F2, and opening a third control valve F3 and a fourth control valve F4; opening a control valve five F5, a control valve six F6, a control valve nine F9 and a control valve ten F10, closing a control valve seven F7, a control valve eight F8, a control valve eleven F11 and a control valve twelve F12, wherein only a second heat exchange tube set 102 in six heat exchange tube sets in the outdoor heat exchanger 4 is separated from the outdoor heat exchanger 4, and one part of high-temperature gaseous refrigerant at the outlet of the compressor 1 flows through the second heat exchange tube set 102 through the third control valve F3, then flows onto a pipeline between the indoor heat exchanger 2 and a throttling element through the fourth control valve F4 and the flow control valve F13, and is converged with refrigerant subjected to heat release and condensation by the indoor heat exchanger 2; the high-temperature gaseous refrigerant flowing through the second heat exchange tube set 102 is rapidly conducted to the refrigerant in the first heat exchange tube set 101 by using the common heat exchange fins, the refrigerant in the first heat exchange tube set 101 obtains a large amount of phase change heat, so that the temperature of the refrigerant in the outdoor heat exchanger 4 is greatly increased after being mixed, and the temperature of the refrigerant entering the compressor 1 is obviously increased compared with the temperature of the refrigerant in the conventional heating operation, so that the temperature of the refrigerant compressed by the compressor 1 is obviously increased compared with the temperature of the refrigerant in the conventional heating operation, and the heat increasing effect is achieved. The heat is increased in turn and then converted into a heat exchange tube group four 104; closing the control valve five F5 and the control valve six F6, and opening the control valve seven F7 and the control valve eight F8; opening a first control valve F1, a second control valve F2, a ninth control valve F9 and a tenth control valve F10, closing a third control valve F3, a fourth control valve F4, an eleventh control valve F11 and a twelfth control valve F12, wherein only a fourth heat exchange tube group 104 in six heat exchange tube groups in the outdoor heat exchanger 4 is separated from the outdoor heat exchanger 4, and one part of high-temperature gaseous refrigerant at the outlet of the compressor 1 flows through the fourth heat exchange tube group 104 through a seventh control valve F7, then flows onto a pipeline between the indoor heat exchanger 2 and a throttling element through an eighth control valve F8 and a F13, and is converged with the refrigerant subjected to heat release and condensation of the indoor heat exchanger 2; the high-temperature gaseous refrigerant flowing through the heat exchange tube group IV 104 is quickly conducted to the refrigerant in the heat exchange tube group III 103 by using the shared heat exchange fins, the refrigerant in the heat exchange tube group III 103 obtains a large amount of phase change heat, so that the temperature of the mixed refrigerant in the outdoor heat exchanger 4 is greatly increased, the temperature of the refrigerant entering the compressor 1 is obviously increased compared with the temperature during the conventional heating operation, and therefore, the temperature of the refrigerant compressed by the compressor 1 is obviously increased compared with the temperature during the conventional heating operation, which is the effect of heat increase. The heat is increased in turn and then converted into a heat exchange tube group six 106; closing the control valve nine F9 and the control valve ten F10, and opening the control valve eleven F11 and the control valve twelve F12; opening a first control valve F1, a second control valve F2, a fifth control valve F5 and a sixth control valve F6, closing a third control valve F3, a fourth control valve F4, a seventh control valve F7 and an eighth control valve F8, wherein only a sixth heat exchange tube group 106 in six heat exchange tube groups in the outdoor heat exchanger 4 is separated from the outdoor heat exchanger 4, and one part of high-temperature gaseous refrigerant at the outlet of the compressor 1 flows through the sixth heat exchange tube group 106 through an eleventh control valve F11, then flows onto a pipeline between the indoor heat exchanger 2 and a throttling element through a twelfth control valve F12 and a flow control valve F13, and is converged with the refrigerant after heat release and condensation of the indoor heat exchanger 2; the high-temperature gaseous refrigerant flowing through the heat exchange tube group six 106 is quickly conducted to the refrigerant in the heat exchange tube group five 105 by using the common heat exchange fins, the refrigerant in the heat exchange tube group five 105 obtains a large amount of phase change heat, so that the temperature of the refrigerant in the outdoor heat exchanger 4 is greatly increased after being mixed, and the temperature of the refrigerant entering the compressor 1 is obviously increased compared with the temperature of the refrigerant in the conventional heating operation, so that the temperature of the refrigerant compressed by the compressor 1 is obviously increased compared with the temperature of the refrigerant in the conventional heating operation, and the heat increasing effect is achieved.
The heat increasing operation system alternately increases the heat of the heat exchange tube group II 102, the heat exchange tube group IV 104 and the heat exchange tube group VI 106, and also can simultaneously increase the heat of the heat exchange tube group II 102 and the heat exchange tube group IV 104, then alternately increases the heat of the heat exchange tube group IV 104 and the heat exchange tube group VI 106, and then alternately increases the heat of the heat exchange tube group VI 106 and the heat exchange tube group II 102, so that the circulation is repeated for a long time, the intensity of the heat increase of the two heat exchange tube groups at each time is higher than that of the heat increase of the heat exchange tube group at each time, and the equipment can adapt to the normal operation requirements of different ultralow temperature environments or the requirements of outputting different high-temperature hot air.
Example 2 is shown in fig. 2 and 3.
A heat pump type small air conditioner for efficiently defrosting is disclosed in embodiment 1, which further comprises a water tank heat exchanger 6, wherein an inlet and an outlet of the water tank heat exchanger 6 are divided into two paths, one path is connected with a second interface B of a four-way change-over valve through a control valve pentadecf 15, the other path is connected with a fourth interface d of the four-way change-over valve through a control valve nineteen F19, an inlet and an outlet of the water tank heat exchanger 6 are divided into two paths, one path is connected to a pipeline between the indoor heat exchanger 2 and the throttling element 3 through a control valve sixteen F16, the other path is connected to a tee joint E through a control valve fourteen F14, the tee joint E is arranged on a pipeline between a second total inlet and outlet B of the outdoor heat exchanger 4 and the throttling element 3, and a control valve seventeen F17 is connected in series with a pipeline connecting the tee joint E with the second total inlet and outlet B of the outdoor heat exchanger 4; and a control valve eighteen F18 is arranged in any one of the two pipelines which are connected with the inlet and the outlet of the indoor heat exchanger and the inlet and the outlet of the indoor heat exchanger outwards.
Fig. 2 is a flow chart of the conventional heating operation, heating defrosting operation, and heating operation. The differences from example 1 are as follows.
(1) The normal heating operation produces hot water, the eighteen F18 and the fourteen F14 control valves are closed, the fifteen F15 control valves, the sixteen F16 control valves and the seventeenth F17 control valves are opened, the first interface a of the four-way switching valve is communicated with the second interface b, and the third interface c is communicated with the fourth interface d; at this time, the indoor heat exchanger is closed, and the water tank heat exchanger is opened. The method comprises the steps of opening a first control valve F1, a second control valve F2, a fifth control valve F5, a sixth control valve F6, a ninth control valve F9 and a tenth control valve F10, closing a third control valve F3, a fourth control valve F4, a seventh control valve F7, an eighth control valve F8, an eleventh control valve F11 and a twelfth control valve F12, connecting a second heat exchange tube group 102, a fourth heat exchange tube group 104 and a sixth heat exchange tube group 106 in parallel with a first main inlet and outlet and a second main inlet and outlet of an outdoor heat exchanger, compressing the refrigerant by a compressor 1, enabling the high-temperature and high-pressure refrigerant to flow through a first connector, a second connector and a fifteenth control valve F15 of a four-way conversion valve sequentially to dissipate heat and improve the temperature of water in a water tank through a heat exchanger 6 of the water tank, after the refrigerant is condensed, sequentially throttling and depressurizing through a sixteenth control valve F16 and a throttling element 3, evaporating and absorbing heat in an outdoor heat exchanger 4 through a seventeenth control valve F17, absorbing heat, enabling the refrigerant to sequentially enter the compressor 1 through the fourth connector and the third connector of the four-way conversion valve and then to be compressed and discharged, and a working cycle is completed. Whether the flow control valve F13 is opened or not has no influence on the normal cooling operation.
(2) Heating and defrosting operation, closing a control valve eighteen F18 and a control valve fourteen F14, opening a control valve fifteen F15, a control valve sixteen F16 and a control valve seventeen F17, connecting a connector I and a connector II of a four-way switching valve, and connecting a connector III and a connector IV; at this time, the indoor heat exchanger is closed, and the water tank heat exchanger is opened. The second heat exchange tube set 102 is turned into the second heat exchange tube set 104, and the third heat exchange tube set six 106, which are the same as the related characters in embodiment 1 and are not described again.
(3) Heating and heating operation, closing a control valve eighteen F18 and a control valve fourteen F14, opening a control valve fifteen F15, a control valve sixteen F16 and a control valve seventeen F17, communicating a first connector a and a second connector b of the four-way switching valve, and communicating a third connector c and a fourth connector d; at this time, the indoor heat exchanger is closed, and the water tank heat exchanger is opened. The heat is increased in turns from the second heat exchange tube set 102, then to the second heat exchange tube set 104, and finally to the sixth heat exchange tube set 106, which is the same as the related characters in embodiment 1 and is not described again. The heating operation allows the water tank to produce hot water at a somewhat higher temperature than in the conventional heating operation.
The heat increasing operation system increases heat of the second heat exchange tube group 102, the fourth heat exchange tube group 104 and the sixth heat exchange tube group 106 in turn, and also can increase heat of the second heat exchange tube group 102 and the fourth heat exchange tube group 104 at the same time, increase heat of the fourth heat exchange tube group 104 and the sixth heat exchange tube group 106 in turn, and increase heat of the sixth heat exchange tube group 106 and the second heat exchange tube group 102 in turn, so that the circulation is repeated for a long time, the intensity of increasing heat of the two heat exchange tube groups at each time is improved compared with the intensity of increasing heat of the heat exchange tube group at each time, and hot water with higher temperature is generated in the water tank. And the water tank heat exchanger can meet the requirements of normal hot water outlet at different ultralow temperature environment temperatures.
Because the heating operation has multiple gears, the flow control valve F13 can be replaced by a plurality of control valves and respectively adjusted to the optimal opening value, and the opening and the closing of the flow control valve are automatically controlled by an automatic control instrument, so that systems with different operation modes can operate in the optimal energy efficiency ratio.
Fig. 3 is an operation state diagram of the hot water generation at the time of cooling operation.
The method comprises the following steps of closing a control valve seventeenth F17, a control valve fifteen F15, a control valve sixteen F16, a control valve I F1, a control valve seven F7 and a control valve eleven F11, opening a control valve fourteen F14, a control valve nineteen F19 and a control valve eighteen F18, connecting a connector I and a connector II of a four-way switching valve, and connecting a connector III and a connector II; at the moment, the indoor heat exchanger 2 plays a role of an evaporator to absorb air heat energy from the indoor space to reduce the indoor temperature, refrigerant in the indoor heat exchanger 2 absorbs heat and then enters the compressor 1 through the second connector b and the third connector c of the four-way switching valve in sequence, high-temperature and high-pressure refrigerant at the outlet of the compressor 1 enters water in a heating water tank of the heat exchanger of the water tank through the first connector a, the fourth connector d and the nineteen F19 of the four-way switching valve in sequence, the refrigerant is cooled to be in a liquid state or a gas-liquid mixed state, is throttled through the fourteen F14 of the control valve, is throttled through the throttling element 3 and then returns to the indoor heat exchanger through the eighteen F18 of the control valve to complete a cycle. In the heat exchange cycle, the indoor heat exchanger plays a role of an evaporator to realize indoor refrigeration, and the water tank heat exchanger plays a role of a condenser to generate hot water, so that compared with the operation mode of simply absorbing atmospheric heat energy from the outdoor heat exchanger to produce hot water or the operation mode of simply absorbing atmospheric heat energy from the indoor to refrigerate and radiating heat outdoors from the outdoor heat exchanger, the energy efficiency ratio can be doubled, and the COP value of the system can reach 8 to 9, even higher.
The invention can be used for manufacturing a three-purpose machine for refrigeration, heating and hot water production.
The invention is not limited to the above embodiments, in the patent implementation, in some cases, a gas-liquid separator, a liquid storage tank and the like are additionally needed, the throttling elements in the prior art are also various, the drawings are too complicated to exhaust various situations, and the drawings are not innovative points, so that the throttling elements are not expressed in detail in the patent drawings. Based on the technical solutions disclosed in the present invention, those skilled in the art can make various alterations and modifications to some technical features without creative efforts based on the disclosed technical contents, and the alterations and modifications are all within the protection scope of the present invention.
Claims (3)
1. The utility model provides a high-efficient small-size air conditioner of heat pump type who changes frost, package compressor, outdoor heat exchanger, indoor heat exchanger and throttling element which characterized in that: the outlet of the compressor is connected with a four-way switching valve, and the four-way switching valve comprises four interfaces, namely an interface I, an interface II, an interface III and an interface IV; when the four-way conversion valve works, the two working states are provided, and when the four-way conversion valve works for heating, the first interface of the four-way conversion valve is communicated with the second interface, and the third interface of the four-way conversion valve is communicated with the fourth interface of the four-way conversion valve; when the refrigeration operation is carried out, the first interface of the four-way conversion valve is communicated with the fourth interface, and the second interface is communicated with the third interface;
the outdoor heat exchanger comprises six heat exchange tube sets, and each heat exchange tube set is formed by connecting a plurality of heat exchange tubes in series; from the edge of one side, the first heat exchange tube group, the third heat exchange tube group and the fifth heat exchange tube group are connected in parallel to form a first general inlet and outlet A and a second general inlet and outlet B of the outdoor heat exchanger;
one end of the heat exchange tube group II is divided into two paths, one path is connected to the first main inlet/outlet A through the control valve I, the other path is connected to the collecting pipe C through the control valve III, the other end of the heat exchange tube group II is also divided into two paths, one path is connected to the second main inlet/outlet B through the control valve II, and the other path is connected to the collecting pipe D through the control valve IV;
one end of the heat exchange tube group IV is divided into two paths, one path is connected to the first main inlet/outlet A through a control valve V, the other path is connected to the collecting pipe C through a control valve VII, the other end of the heat exchange tube group IV is also divided into two paths, one path is connected to the second main inlet/outlet B through a control valve VI, and the other path is connected to the collecting pipe D through a control valve VIII;
one end of the heat exchange tube group six is divided into two paths, one path is connected to the first main inlet/outlet A through a control valve nine, the other path is connected to the collecting pipe C through a control valve eleven, the other end of the heat exchange tube group six is also divided into two paths, one path is connected to the second main inlet/outlet B through a control valve eleven, and the other path is connected to the collecting pipe D through a control valve twelve;
the second interface is connected with a second inlet and a second outlet of the indoor heat exchanger, a first general inlet and a first general outlet of the outdoor heat exchanger are connected with a fourth interface of the four-way switching valve, and a second general inlet and a second general outlet of the outdoor heat exchanger are connected to a first inlet and a second inlet of the indoor heat exchanger through a throttling element;
the collecting pipe C is connected to a pipeline between the outlet of the compressor and the first interface; the collecting pipe D is connected to a pipeline between the first inlet/outlet of the indoor heat exchanger and the throttling element;
the first heat exchange tube group and the second heat exchange tube group are provided with shared heat exchange fins; the third heat exchange tube group and the fourth heat exchange tube group are provided with shared heat exchange fins; and the heat exchange tube group V and the heat exchange tube group VI are provided with common heat exchange fins.
2. The high efficiency defrosting heat pump type small air conditioner according to claim 1, wherein: and a flow control valve is arranged on a pipeline between the outlet of the compressor and the first connector of the collecting pipe C or a pipeline between the inlet and the outlet of the indoor heat exchanger and the throttling element of the collecting pipe D.
3. A heat pump type small air conditioner of efficient defrosting according to claim 1 or 2, characterized in that: the inlet and the outlet of the water tank heat exchanger are divided into two paths, one path of the water tank heat exchanger is connected with a second connector of the four-way change-over valve through a fifteen-way control valve, and the other path of the water tank heat exchanger is connected with a fourth connector of the four-way change-over valve through a nineteen-way control valve; the inlet and the outlet of the water tank heat exchanger are divided into two paths, one path is connected to a pipeline between the indoor heat exchanger and the throttling element through a control valve sixteen, the other path is connected to a tee joint E through a control valve fourteen, the tee joint E is arranged on a pipeline between the outdoor heat exchanger general inlet and outlet two B and the throttling element, and a control valve seventeen is further connected to a pipeline connected with the tee joint E and the outdoor heat exchanger general inlet and outlet two B in series; and eighteen control valves are arranged in any one of the two pipelines which are connected with the inlet and the outlet of the indoor heat exchanger and the inlet and the outlet of the indoor heat exchanger outwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210825144.5A CN115235141B (en) | 2022-07-14 | 2022-07-14 | Efficient defrosting heat pump type small air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210825144.5A CN115235141B (en) | 2022-07-14 | 2022-07-14 | Efficient defrosting heat pump type small air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115235141A true CN115235141A (en) | 2022-10-25 |
| CN115235141B CN115235141B (en) | 2023-10-31 |
Family
ID=83672956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210825144.5A Active CN115235141B (en) | 2022-07-14 | 2022-07-14 | Efficient defrosting heat pump type small air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115235141B (en) |
Citations (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19980040015A (en) * | 1996-11-28 | 1998-08-17 | 배순훈 | Humidifier motion control device using 2 PTC heaters and method |
| CN1517632A (en) * | 2003-01-13 | 2004-08-04 | Lg������ʽ���� | Duplex air governor with defrost equipment |
| KR20070017789A (en) * | 2005-08-08 | 2007-02-13 | 이바도 | humidifier having sterilization function |
| CN101532743A (en) * | 2009-04-13 | 2009-09-16 | 西安建筑科技大学 | Heat pump unit of air and water source double-condenser |
| KR20120140085A (en) * | 2011-06-20 | 2012-12-28 | 한국교통대학교산학협력단 | Heat pump of alternating type and method for operating the heat pump |
| CN203364323U (en) * | 2013-05-29 | 2013-12-25 | 江门市恒天科技有限公司 | Humidifier with PTC heating device |
| KR20140100862A (en) * | 2013-02-07 | 2014-08-18 | 최제형 | Self-sterilizing Ultrasound humidifier |
| WO2015059792A1 (en) * | 2013-10-24 | 2015-04-30 | 三菱電機株式会社 | Air conditioner |
| JP2015132413A (en) * | 2014-01-10 | 2015-07-23 | ダイキン工業株式会社 | Refrigeration device |
| CN204593992U (en) * | 2015-03-31 | 2015-08-26 | 广东美的制冷设备有限公司 | Air-conditioning equipment and defrost control system thereof |
| CN205174615U (en) * | 2015-11-13 | 2016-04-20 | 清华大学 | Air source multiple air conditioner heat pump system |
| CN106546023A (en) * | 2016-12-02 | 2017-03-29 | 贺州市光耀太阳能设备有限公司 | Partial vaporiser alternating is converted into the device of condenser defrosting in good time |
| CN106839493A (en) * | 2016-11-23 | 2017-06-13 | 珠海格力电器股份有限公司 | Air conditioning system and defrosting control method thereof |
| CN108592437A (en) * | 2018-02-02 | 2018-09-28 | 北京中科华誉热泵设备制造有限公司 | A kind of air source heat pump that energy storage defrosts step by step |
| CN109900018A (en) * | 2019-01-31 | 2019-06-18 | 浙江理工大学 | Air source heat pump system |
| CN110553328A (en) * | 2019-09-09 | 2019-12-10 | 珠海格力电器股份有限公司 | Air conditioning system and control method thereof |
| CN112229097A (en) * | 2020-11-02 | 2021-01-15 | 赛诺浦新能源(江苏)有限公司 | Air source heat pump system with defrosting function and operation method thereof |
| CN113776221A (en) * | 2021-09-27 | 2021-12-10 | 陕西凯尔利尼冷冻空调有限公司 | Method for realizing heat supply of screw machine heat pump cooling and heating unit |
| CN113847754A (en) * | 2021-09-16 | 2021-12-28 | 中国建筑西南设计研究院有限公司 | Multi-evaporator alternating defrosting air source heat pump unit and operation control method thereof |
| CN115031439A (en) * | 2022-06-16 | 2022-09-09 | 江苏省华扬太阳能有限公司 | High-efficiency defrosting heat pump type large and medium air conditioning device |
| CN115031445A (en) * | 2022-06-16 | 2022-09-09 | 江苏省华扬太阳能有限公司 | Air source heat pump high-temperature heating device and operation method thereof |
| CN115031438A (en) * | 2022-06-16 | 2022-09-09 | 江苏省华扬太阳能有限公司 | Efficient defrosting heat pump type small air conditioner |
| CN115077119A (en) * | 2022-07-01 | 2022-09-20 | 江苏省华扬太阳能有限公司 | Non-stop quick defrosting energy-saving air conditioner |
-
2022
- 2022-07-14 CN CN202210825144.5A patent/CN115235141B/en active Active
Patent Citations (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19980040015A (en) * | 1996-11-28 | 1998-08-17 | 배순훈 | Humidifier motion control device using 2 PTC heaters and method |
| CN1517632A (en) * | 2003-01-13 | 2004-08-04 | Lg������ʽ���� | Duplex air governor with defrost equipment |
| KR20070017789A (en) * | 2005-08-08 | 2007-02-13 | 이바도 | humidifier having sterilization function |
| CN101532743A (en) * | 2009-04-13 | 2009-09-16 | 西安建筑科技大学 | Heat pump unit of air and water source double-condenser |
| KR20120140085A (en) * | 2011-06-20 | 2012-12-28 | 한국교통대학교산학협력단 | Heat pump of alternating type and method for operating the heat pump |
| KR20140100862A (en) * | 2013-02-07 | 2014-08-18 | 최제형 | Self-sterilizing Ultrasound humidifier |
| CN203364323U (en) * | 2013-05-29 | 2013-12-25 | 江门市恒天科技有限公司 | Humidifier with PTC heating device |
| WO2015059792A1 (en) * | 2013-10-24 | 2015-04-30 | 三菱電機株式会社 | Air conditioner |
| JP2015132413A (en) * | 2014-01-10 | 2015-07-23 | ダイキン工業株式会社 | Refrigeration device |
| CN204593992U (en) * | 2015-03-31 | 2015-08-26 | 广东美的制冷设备有限公司 | Air-conditioning equipment and defrost control system thereof |
| CN205174615U (en) * | 2015-11-13 | 2016-04-20 | 清华大学 | Air source multiple air conditioner heat pump system |
| CN106839493A (en) * | 2016-11-23 | 2017-06-13 | 珠海格力电器股份有限公司 | Air conditioning system and defrosting control method thereof |
| CN106546023A (en) * | 2016-12-02 | 2017-03-29 | 贺州市光耀太阳能设备有限公司 | Partial vaporiser alternating is converted into the device of condenser defrosting in good time |
| CN108592437A (en) * | 2018-02-02 | 2018-09-28 | 北京中科华誉热泵设备制造有限公司 | A kind of air source heat pump that energy storage defrosts step by step |
| CN109900018A (en) * | 2019-01-31 | 2019-06-18 | 浙江理工大学 | Air source heat pump system |
| CN110553328A (en) * | 2019-09-09 | 2019-12-10 | 珠海格力电器股份有限公司 | Air conditioning system and control method thereof |
| CN112229097A (en) * | 2020-11-02 | 2021-01-15 | 赛诺浦新能源(江苏)有限公司 | Air source heat pump system with defrosting function and operation method thereof |
| CN113847754A (en) * | 2021-09-16 | 2021-12-28 | 中国建筑西南设计研究院有限公司 | Multi-evaporator alternating defrosting air source heat pump unit and operation control method thereof |
| CN113776221A (en) * | 2021-09-27 | 2021-12-10 | 陕西凯尔利尼冷冻空调有限公司 | Method for realizing heat supply of screw machine heat pump cooling and heating unit |
| CN115031439A (en) * | 2022-06-16 | 2022-09-09 | 江苏省华扬太阳能有限公司 | High-efficiency defrosting heat pump type large and medium air conditioning device |
| CN115031445A (en) * | 2022-06-16 | 2022-09-09 | 江苏省华扬太阳能有限公司 | Air source heat pump high-temperature heating device and operation method thereof |
| CN115031438A (en) * | 2022-06-16 | 2022-09-09 | 江苏省华扬太阳能有限公司 | Efficient defrosting heat pump type small air conditioner |
| CN115077119A (en) * | 2022-07-01 | 2022-09-20 | 江苏省华扬太阳能有限公司 | Non-stop quick defrosting energy-saving air conditioner |
Non-Patent Citations (3)
| Title |
|---|
| 刘演;: "多组并联蒸发器制冷***的热气冲霜装置", 制冷与空调, no. 03 * |
| 刘雄;张海波;刘兆海;王玉琦;李志茹;陶绪银;: "一种可连续供热除霜的空气源热泵冷热水机组", 建筑热能通风空调, no. 12 * |
| 汪俊勇;: "热气旁通化霜技术在空调机组上的应用", 制冷, no. 03 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115235141B (en) | 2023-10-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101713599B (en) | Air-conditioning heat pump device | |
| CN100567852C (en) | Multifunctional air-condition heat pump device | |
| CN101140122B (en) | Heat pump machine group of combined throttling set | |
| CN103129348A (en) | Electric vehicle heat pump system | |
| CN105402966B (en) | A kind of solar air source heat pumps | |
| CN106556083B (en) | A kind of multi-online air-conditioning system having injector and its control method | |
| CN106225296B (en) | A kind of commutation defrosting net for air-source heat pump units and the Defrost method that commutates | |
| CN112577103A (en) | Multi-split air conditioner and control method thereof | |
| CN115031438B (en) | Efficient defrosting heat pump type small air conditioner | |
| CN115077119B (en) | Energy-saving air conditioner capable of quickly defrosting without stopping | |
| CN115031439B (en) | Heat pump type large and medium air conditioner with efficient defrosting | |
| CN110307669B (en) | Solar energy synergy multi-mode heating device based on compression heat pump circulation | |
| CN115031445B (en) | High-temperature heating device of air source heat pump and operation method thereof | |
| CN110360639B (en) | Direct expansion type solar energy injection and compression coupling heat and cold supply device | |
| CN109631171B (en) | Multi-heat exchanger window type air conditioner with fresh air function | |
| CN208620653U (en) | A kind of air-conditioning based on economizer is adjusted and controlled and air-conditioning system | |
| CN106595118A (en) | Air-cooled cold and hot water unit | |
| CN115235141B (en) | Efficient defrosting heat pump type small air conditioner | |
| CN116164360A (en) | Overlapping type compression multi-cycle PVT-air source multi-split heat pump air conditioning system for defrosting of outdoor heat source | |
| CN216204444U (en) | Air conditioner combining air supply compressor and indoor and outdoor auxiliary heat exchanger | |
| CN210220276U (en) | System capable of supplying cold air, hot water and cold water | |
| CN108007010B (en) | Heat pump system | |
| CN220981638U (en) | Air source heat pump hot and cold water system capable of supplying heat and defrosting continuously | |
| CN216080462U (en) | Cold-heat reversing device of air source heat pump system | |
| CN214581896U (en) | Single-stage, overlapping circulation free conversion heat pump 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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |