CN104515319A - Air conditioning system - Google Patents
Air conditioning system Download PDFInfo
- Publication number
- CN104515319A CN104515319A CN201310462113.9A CN201310462113A CN104515319A CN 104515319 A CN104515319 A CN 104515319A CN 201310462113 A CN201310462113 A CN 201310462113A CN 104515319 A CN104515319 A CN 104515319A
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- Prior art keywords
- heat exchanger
- valve
- port
- air conditioning
- electromagnetic valve
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 62
- 238000010438 heat treatment Methods 0.000 claims description 42
- 239000007788 liquid Substances 0.000 claims description 11
- 238000005485 electric heating Methods 0.000 claims description 6
- 238000005057 refrigeration Methods 0.000 claims description 5
- 239000003507 refrigerant Substances 0.000 description 40
- 238000010257 thawing Methods 0.000 description 17
- 238000005338 heat storage Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 230000005494 condensation Effects 0.000 description 6
- 238000009833 condensation Methods 0.000 description 6
- 238000001704 evaporation Methods 0.000 description 6
- 230000008020 evaporation Effects 0.000 description 6
- 238000001816 cooling Methods 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 239000011232 storage material Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004781 supercooling Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/001—Compression cycle type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The invention provides an air conditioning system, which comprises a compressor, a four-way valve, an indoor heat exchanger, a throttling element, an outdoor heat exchanger assembly, a first electromagnetic valve and a second electromagnetic valve which are sequentially connected, wherein the outdoor heat exchanger assembly comprises an outdoor heat exchanger; the second electromagnetic valve is connected in series between the indoor heat exchanger and the throttling element, the indoor heat exchanger and the second electromagnetic valve which are connected in series are connected in parallel with the first electromagnetic valve, or the indoor heat exchanger, the second electromagnetic valve and the throttling element which are connected in series are connected in parallel with the first electromagnetic valve; the four-way valve is provided with a first valve port, a second valve port, a third valve port, a fourth valve port, a throttle element and a throttle element, wherein the first valve port is communicated with a first port of the outdoor heat exchanger, the second valve port is communicated with the exhaust end of the compressor, the third valve port is respectively communicated with a first port of the indoor heat exchanger and the first electromagnetic valve, the second port of the indoor heat exchanger is communicated with the second electromagnetic valve, and the fourth valve port is communicated with the suction end of the compressor. The air conditioning system of the invention can lead the heat pump type air conditioner to quickly defrost the outdoor heat exchanger.
Description
Technical Field
The invention relates to the field of refrigeration, in particular to an air conditioning system.
Background
Under the mode of continuous heating circulation, the existing air conditioning system usually achieves the purpose of continuous heating through the heat absorption and heat release of a heat storage material, but the following potential hazards exist in the continuous defrosting mode achieved by adopting a heat storage mode: 1) the heat storage material has insufficient heat storage capacity, so that heat is lacked in the continuous heating and defrosting process, and the return air of the compressor carries liquid to abrade the compressor; 2) through the test and determination of the same type of machine types, the air outlet temperature effect of the heat storage defrosting mode is not ideal, the air outlet temperature and the air inlet temperature are not greatly different in a half time of the defrosting period, no heat is blown out, and the heating effect is poor in the defrosting period; 3) the heat storage form requires redesigning the heat storage device, the adjustment to the external machine structure is large, in addition, the selection of the heat storage material and the structural design of the heat storage tank are complex, and the hidden troubles of leakage, long-term deterioration and the like exist.
Disclosure of Invention
In view of the current state of the prior art, the present invention provides an air conditioning system, which can quickly defrost the frost layer on the outdoor heat exchanger of a heat pump type air conditioner. In order to achieve the purpose, the technical scheme of the invention is as follows:
an air conditioning system comprises a compressor, a four-way valve, an indoor heat exchanger, a throttling element and an outdoor heat exchanger assembly which are sequentially connected, and further comprises a first electromagnetic valve and a second electromagnetic valve;
the outdoor heat exchanger assembly includes an outdoor heat exchanger;
the second electromagnetic valve is connected in series between the indoor heat exchanger and the throttling element, the indoor heat exchanger, the second electromagnetic valve and the first electromagnetic valve after being connected in series are connected in parallel, or the indoor heat exchanger, the second electromagnetic valve and the throttling element after being connected in series are connected in parallel with the first electromagnetic valve;
the four-way valve is provided with a first valve port, a second valve port, a third valve port, a fourth valve port, a throttle element and a throttle element, wherein the first valve port is communicated with a first port of the outdoor heat exchanger, the second valve port is communicated with the exhaust end of the compressor, the third valve port is respectively communicated with a first port of the indoor heat exchanger and the first electromagnetic valve, the second port of the indoor heat exchanger is communicated with the second electromagnetic valve, and the fourth valve port is communicated with the suction end of the compressor.
Preferably, the outdoor heat exchanger assembly further comprises a capillary tube and a third solenoid valve;
the outdoor heat exchanger comprises a first heat exchanger and a second heat exchanger, and the first heat exchanger is connected with the second heat exchanger in series;
the capillary tube and the third electromagnetic valve are connected in parallel and then connected in series between the first heat exchanger and the second heat exchanger.
Preferably, the air conditioning system further comprises an auxiliary heating device disposed on the indoor heat exchanger.
Further, the auxiliary heating device is an electric heating pipe or a radiant plate.
Preferably, the air conditioning system further comprises a stop valve;
the stop valve is connected in series between the indoor heat exchanger and the four-way valve, and the stop valve is connected in series between the indoor heat exchanger and the second electromagnetic valve.
Preferably, the throttling element is an electronic expansion valve.
Preferably, the air conditioning system further comprises a vapor-liquid separator connected in series between the fourth valve port and the suction end of the compressor.
Preferably, the air conditioning system has a cooling mode, wherein when the air conditioning system is in the cooling mode, the first valve port and the second valve port, and the third valve port and the fourth valve port are respectively connected, the second electromagnetic valve, the third electromagnetic valve and the throttling element operate, and the first electromagnetic valve is closed.
Preferably, the air conditioning system has a first heating mode, wherein in the first heating mode of the air conditioning system, the first valve port and the fourth valve port, the second valve port and the third valve port are respectively communicated, the second solenoid valve, the third solenoid valve and the throttling element are operated, and the first solenoid valve is closed.
Preferably, the air conditioning system has a second heating mode, wherein in the second heating mode of the air conditioning system, the first valve port and the fourth valve port, and the second valve port and the third valve port are respectively communicated, the first electromagnetic valve is operated, the throttling element is operated in a full-open state, and the second electromagnetic valve and the third electromagnetic valve are closed.
Preferably, the air conditioning system has a second heating mode, wherein in the second heating mode of the air conditioning system, the first valve port and the fourth valve port, and the second valve port and the third valve port are respectively communicated, the first electromagnetic valve is operated, the second electromagnetic valve and the third electromagnetic valve are closed, and the throttling element is operated or closed.
The invention has the beneficial effects that:
the air conditioning system of the invention can lead the heat pump type air conditioner to quickly defrost the frost layer on the outdoor heat exchanger, and the indoor heat can be continuously supplied. By segmenting the outdoor heat exchanger, one part of the outdoor heat exchanger is evaporated and the other part of the outdoor heat exchanger is condensed, and the processes of condensation defrosting and evaporation heat absorption are simultaneously carried out, so that the thermodynamic requirement is met, and the purpose of quickly defrosting the outdoor heat exchanger is also achieved.
Drawings
FIG. 1 is a schematic view of a circulation system of an embodiment of an air conditioning system of the present invention;
fig. 2 is a refrigerant flow diagram of the air conditioning system shown in fig. 1 when operating in the first heating mode;
fig. 3 is a refrigerant flow diagram of the air conditioning system shown in fig. 1 when operating in the second heating mode;
wherein,
01, a compressor; 10 indoor heat exchanger; 15 a four-way valve; 20 outdoor heat exchanger; 25 a throttling element;
32 a gas-liquid separator; 34 a first solenoid valve; 35 a second solenoid valve; 36 auxiliary heating means;
41 capillary tube; 42 a third solenoid valve; 50 an outdoor heat exchanger assembly; 60 stop valves; 70, a fan;
100 indoor units; 200 outdoor unit.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly apparent, the air conditioning system of the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to 3, an embodiment of the air conditioning system of the present invention includes an indoor unit 100 and an outdoor unit 200, the indoor unit 100 including an indoor heat exchanger 10, the outdoor unit 200 including a compressor 01, a four-way valve 15, an outdoor heat exchanger assembly 50 and a throttling element 25, the outdoor heat exchanger assembly 50 including an outdoor heat exchanger 20; the compressor 01, the four-way valve 15, the indoor heat exchanger 10, the throttling element 25 and the outdoor heat exchanger 20 are sequentially connected to form a refrigeration loop, and the throttling element 25 is an electronic expansion valve.
The air conditioning system further comprises a first electromagnetic valve 34 and a second electromagnetic valve 35, wherein the second electromagnetic valve 35 is connected in series between the indoor heat exchanger 10 and the throttling element 25, the indoor heat exchanger 10 and the second electromagnetic valve 35 which are connected in series are connected in parallel with the first electromagnetic valve 34, or the indoor heat exchanger 10, the second electromagnetic valve 35 and the throttling element 25 which are connected in series are connected in parallel with the first electromagnetic valve 34.
The four-way valve 15 has first to fourth ports (a 1, B1, C1, D1), the first port a1 communicates with the first port of the outdoor heat exchanger 20, the second port of the outdoor heat exchanger 20 communicates with the throttling element 25, the second port B1 communicates with the discharge end of the compressor 01, the third port C1 communicates with the first port of the indoor heat exchanger 10 and the first solenoid valve 34, respectively, the second port of the indoor heat exchanger 10 communicates with the second solenoid valve 35, and the fourth port D1 communicates with the suction end of the compressor 01. When the air conditioning system is in the cooling mode, the inlet of the outdoor heat exchanger 20 is the first port of the outdoor heat exchanger 20, the outlet of the outdoor heat exchanger 20 is the second port of the outdoor heat exchanger 20, the outlet of the indoor heat exchanger 10 is the first port of the indoor heat exchanger 10, and the inlet of the indoor heat exchanger 10 is the second port of the indoor heat exchanger 10. Preferably, the air conditioning system further includes a cutoff valve 60, the cutoff valve 60 is connected in series between the indoor heat exchanger 10 and the four-way valve 15, and the cutoff valve 60 is connected in series between the indoor heat exchanger 10 and the second solenoid valve 35. The stop valve 60 is arranged, when the air conditioning system breaks down, the stop valve 60 can be stopped, the refrigerant in the system does not need to be discharged, and the maintenance and the operation are convenient. The air conditioning system further comprises a vapor-liquid separator 32, and the vapor-liquid separator 32 is connected in series between the fourth valve port D1 and the suction end of the compressor 01.
Preferably, as an implementation mode, the outdoor heat exchanger assembly 50 further includes a capillary tube 40 and a third solenoid valve 42, the outdoor heat exchanger 20 includes a first heat exchanger 201 and a second heat exchanger 202, the first heat exchanger 201 is connected in series with the second heat exchanger 202, and the capillary tube 40 is connected in parallel with the third solenoid valve 42 and then connected in series between the first heat exchanger 201 and the second heat exchanger 202. One part of the outdoor heat exchanger is evaporated and the other part of the outdoor heat exchanger is condensed, and the processes of condensation defrosting and evaporation heat absorption are simultaneously carried out, so that the thermodynamic requirement is met, and the purpose of quickly defrosting the outdoor heat exchanger is also achieved.
Preferably, as an embodiment, the air conditioning system further includes an auxiliary heating device 36 disposed on the indoor heat exchanger 10, and the auxiliary heating device 36 is an electric heating pipe or a radiant panel. An auxiliary heating device 36 is provided to increase the heat supply of the indoor heat exchanger 10.
Preferably, as an implementation mode, the air conditioning system has a cooling mode, wherein in the cooling mode of the air conditioning system, the four-way valve 15 is powered off, the first valve port a1 and the second valve port B1, the third valve port C1 and the fourth valve port D1 are respectively conducted, the second solenoid valve 35, the third solenoid valve 42 and the throttling element 25 are operated, and the first solenoid valve 34 is closed.
When the air conditioning system operates in the refrigeration mode, the flow direction of the refrigerant is shown in fig. 1, the arrow direction is the refrigerant flow direction, the refrigerant discharged from the compressor 01 enters the four-way valve 15 through the second valve port B1, flows out of the first valve port a1 and enters the second heat exchanger 202, the refrigerant is subjected to first condensation heat release at the position, the gaseous refrigerant is condensed into a gas-liquid two-phase refrigerant, and the refrigerant flowing out of the second heat exchanger 202 enters the first heat exchanger 201 through the third electromagnetic valve 42 to be subjected to second condensation heat release; the refrigerant reaches the supercooling refrigerant by the condensation heat release of the first heat exchanger and the second heat exchanger twice, the condensed refrigerant reaches the throttling element 25 through the refrigerant pipe, is throttled and decompressed and then enters the indoor heat exchanger 10 to exchange heat, is evaporated in the indoor heat exchanger 10, absorbs heat at the position, is subjected to phase change to form supersaturated gaseous refrigerant, and then reaches the gas-liquid separator through the refrigerant pipe, and the separator separates liquid, so that the gaseous refrigerant is sucked into the compressor, and the condition that the compressor sucks air without liquid is ensured.
Preferably, as an implementation mode, the air conditioning system has a first heating mode, wherein the four-way valve 15 is powered on when the air conditioning system is in the heating mode, the first port a1 and the fourth port D1, the second port B1 and the third port C1 are respectively conducted, the second solenoid valve 35, the third solenoid valve 42 and the throttling element 25 are operated, and the first solenoid valve 34 is closed.
The refrigerant flowing direction of the air conditioning system in the first heating mode is as shown in fig. 2, the arrow direction is the refrigerant flowing direction, the refrigerant discharged from the compressor 01 enters the four-way valve 15 through the second valve port B1, flows out of the third valve port C1 and enters the indoor heat exchanger 10, the refrigerant condenses and releases heat in the indoor heat exchanger 10, the heat brought by the compressor 01 is transferred to the indoor, the indoor temperature is raised, the indoor heating is achieved, the refrigerant is condensed in the indoor heat exchanger 10, then passes through the second electromagnetic valve 35 in the conducting state, then reaches the throttling element 25, throttles and reduces the pressure through the throttling element, enters the first heat exchanger 201, is evaporated for the first time in the first heat exchanger 201, the refrigerant flowing out of the first heat exchanger 201 enters the second heat exchanger 202 through the third electromagnetic valve 42 in the conducting state, and is evaporated for the second time in the second heat exchanger 202. Where heat is absorbed, since the evaporation temperature is low, when the freezing temperature is lower than the ambient temperature, a frost layer is frozen on the surface of the outer condenser, the refrigerant heated by evaporation flows into the gas-liquid separator 32 to undergo phase separation, and finally the gaseous refrigerant is sucked into the compressor 01.
Preferably, as an implementable mode, the air conditioning system has a second heating mode (heating + defrosting), wherein in the second heating mode, the solenoid valve 15 is powered on, the first port a1 and the fourth port D1, the second port B1 and the third port C1 are respectively conducted, the first solenoid valve 34 and the throttling element 25 are operated, and the second solenoid valve 35 and the third solenoid valve 42 are closed.
When the first heating mode is operated for a period of time, because the frost layer on the surface of the outdoor heat exchanger 20 is gradually thickened, the heat exchange of the outdoor heat exchanger 20 is seriously affected, the heat transfer rate is greatly affected, and the air conditioning system must be defrosted, therefore, the air conditioning system enters the second heating mode, when the air conditioning system is in the second heating mode, the refrigerant flows towards the direction shown in fig. 3, the arrow direction is the refrigerant flowing direction, the refrigerant discharged by the compressor 01 enters the four-way valve 15 through the second valve port B1, flows out of the third valve port C1 and enters the throttling element 25 in the fully open state through the first electromagnetic valve 34, the high-temperature gaseous refrigerant enters the first heat exchanger 201 to be heated and defrosted, then the refrigerant is subjected to throttling and decompression once through the capillary tube 40 to reduce the saturation pressure of the refrigerant, so that the refrigerant can perform evaporation heat exchange in the second heat exchanger 202, one part absorbs the heat of the air, and the other part absorbs the heat, so that the refrigerant at the outlet of the second heat exchanger 202 is in a gaseous state, and the refrigerant flowing out of the second heat exchanger 202 returns to the compressor 01 through the first valve port a1 and the fourth valve port D1 of the four-way valve 15 in sequence, thereby completing a complete thermodynamic cycle process. The thermodynamic cycle is the case where the indoor heat exchanger 10, the second solenoid valve 35 and the first solenoid valve 34 are connected in parallel after being connected in series, that is, the corresponding common ends of the first solenoid valve 34 and the throttling element 25 are at point a in fig. 3.
When the indoor heat exchanger 10, the second electromagnetic valve 35, the throttling element 25 and the first electromagnetic valve 34 which are connected in series are connected in parallel, namely, the common end of the first electromagnetic valve 34 and the throttling element 25 is a refrigerant pipe between the first heat exchanger 201 and the throttling element 25. In the second heating mode, the refrigerant discharged from the compressor 01 enters the four-way valve 15 through the second valve port B1, flows out of the third valve port C1, and then directly enters the first heat exchanger 201 through the first electromagnetic valve 34 to be heated and defrosted, and the flow direction of the refrigerant after heating is the same as that of the refrigerant in the case that the indoor heat exchanger 10, the second electromagnetic valve 35 and the first electromagnetic valve 34 which are connected in series are connected in parallel; when the indoor heat exchanger 10, the second electromagnetic valve 35, the throttling element 25 and the first electromagnetic valve 34 which are connected in series are connected in parallel, when the air conditioning system is in the second heating mode, the throttling element 25 does not need to be in a fully-opened state during working, the throttling element 25 can be closed, and heat transfer in a refrigerant pipe between the throttling element 25 and the second electromagnetic valve 35 can be reduced when the throttling element 25 is closed. High-temperature exhaust gas of the compressor 01 directly reaches the outdoor heat exchanger assembly for defrosting, and defrosting speed is improved.
In the above process, since the second electromagnetic valve 35 is in the closed state, no supercooling refrigerant passes through the indoor heat exchanger 10, the indoor heat exchanger 10 does not cool the air passing through the indoor heat exchanger 10, one end of the indoor heat exchanger 10 is directly communicated with the exhaust end of the compressor 01, the heat is directly transferred to the indoor heat exchanger 10 through the connecting pipe, and the temperature of the air circulation in the room is not greatly reduced in the defrosting period. In order to increase the indoor heat, a heat-accumulating radiant plate and an electric heating pipe may be matched with the heat exchanger on the indoor side, and when the outdoor heat exchanger 20 is defrosting, after the second electromagnetic valve 35 is closed, a slow heat release process may be performed by the heat collected by the radiant plate, or electric energy may be converted into heat energy by electric heating, and the indoor unit 100 continuously supplies heat to the room by the fan 70. In the second heating mode, the air volume of the indoor unit 100 may be set at will without being forcibly set to the low damper. The heat supply of the indoor unit is greatly improved compared with the prior art through the design.
The air conditioning system of the invention can lead the heat pump type air conditioner to quickly defrost the frost layer on the outdoor heat exchanger, and the indoor heat can be continuously supplied. By segmenting the outdoor heat exchanger, one part of the outdoor heat exchanger is evaporated and the other part of the outdoor heat exchanger is condensed, and the processes of condensation defrosting and evaporation heat absorption are simultaneously carried out. Thus, thermodynamic requirements are met, and the purpose of quickly defrosting the outdoor heat exchanger is achieved. The auxiliary heating device (such as a radiation plate and an electric heating pipe) is added on the indoor heat exchanger, the heating capacity of the indoor unit is increased, continuous defrosting can be realized more quickly, and the indoor comfort is better.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (11)
1. The utility model provides an air conditioning system, includes compressor, cross valve, indoor heat exchanger, throttling element and the outdoor heat exchanger subassembly that connects gradually, its characterized in that:
the electromagnetic valve also comprises a first electromagnetic valve and a second electromagnetic valve;
the outdoor heat exchanger assembly includes an outdoor heat exchanger;
the second electromagnetic valve is connected in series between the indoor heat exchanger and the throttling element, the indoor heat exchanger, the second electromagnetic valve and the first electromagnetic valve after being connected in series are connected in parallel, or the indoor heat exchanger, the second electromagnetic valve and the throttling element after being connected in series are connected in parallel with the first electromagnetic valve;
the four-way valve is provided with a first valve port, a second valve port, a third valve port, a fourth valve port, a throttle element and a throttle element, wherein the first valve port is communicated with a first port of the outdoor heat exchanger, the second valve port is communicated with the exhaust end of the compressor, the third valve port is respectively communicated with a first port of the indoor heat exchanger and the first electromagnetic valve, the second port of the indoor heat exchanger is communicated with the second electromagnetic valve, and the fourth valve port is communicated with the suction end of the compressor.
2. The air conditioning system of claim 1, wherein:
the outdoor heat exchanger assembly further comprises a capillary tube and a third solenoid valve;
the outdoor heat exchanger comprises a first heat exchanger and a second heat exchanger, and the first heat exchanger is connected with the second heat exchanger in series;
the capillary tube and the third electromagnetic valve are connected in parallel and then connected in series between the first heat exchanger and the second heat exchanger.
3. The air conditioning system of claim 1, wherein:
the indoor heat exchanger is characterized by also comprising an auxiliary heating device arranged on the indoor heat exchanger.
4. The air conditioning system of claim 3, wherein:
the auxiliary heating device is an electric heating pipe or a radiant panel.
5. The air conditioning system of claim 1, wherein:
the device also comprises a stop valve;
the stop valve is connected in series between the indoor heat exchanger and the four-way valve, and the stop valve is connected in series between the indoor heat exchanger and the second electromagnetic valve.
6. The air conditioning system according to any one of claims 1 to 5, wherein:
the throttling element is an electronic expansion valve or a capillary tube.
7. The air conditioning system of claim 6, wherein:
the gas-liquid separator is connected between the fourth valve port and the suction end of the compressor in series.
8. The air conditioning system of claim 2, wherein:
the air conditioning system is provided with a refrigeration mode, wherein when the air conditioning system is in the refrigeration mode, the first valve port and the second valve port, the third valve port and the fourth valve port are respectively communicated, the second electromagnetic valve, the third electromagnetic valve and the throttling element work, and the first electromagnetic valve is closed.
9. The air conditioning system of claim 2, wherein:
the air conditioning system has a first heating mode, wherein when the air conditioning system is in the first heating mode, the first valve port and the fourth valve port, the second valve port and the third valve port are respectively communicated, the second electromagnetic valve, the third electromagnetic valve and the throttling element work, and the first electromagnetic valve is closed.
10. The air conditioning system of claim 2, wherein:
the air conditioning system has a second heating mode, wherein when the air conditioning system is in the second heating mode, the first valve port and the fourth valve port, and the second valve port and the third valve port are respectively communicated, the first electromagnetic valve works, the throttling element works in a full-open state, and the second electromagnetic valve and the third electromagnetic valve are closed.
11. The air conditioning system of claim 2, wherein:
the air conditioning system has a second heating mode, wherein when the air conditioning system is in the second heating mode, the first valve port and the fourth valve port, and the second valve port and the third valve port are respectively communicated, the first electromagnetic valve works, the second electromagnetic valve and the third electromagnetic valve are closed, and the throttling element works or is closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310462113.9A CN104515319B (en) | 2013-09-30 | 2013-09-30 | Air conditioning system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310462113.9A CN104515319B (en) | 2013-09-30 | 2013-09-30 | Air conditioning system |
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| Publication Number | Publication Date |
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| CN104515319A true CN104515319A (en) | 2015-04-15 |
| CN104515319B CN104515319B (en) | 2017-04-12 |
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| CN201310462113.9A Active CN104515319B (en) | 2013-09-30 | 2013-09-30 | Air conditioning system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105423447A (en) * | 2015-12-10 | 2016-03-23 | 广东志高空调有限公司 | Outdoor unit used for heat pump type air conditioner and heat pump type air conditioner |
| CN106595118A (en) * | 2016-12-27 | 2017-04-26 | 珠海格力电器股份有限公司 | Air-cooled cold and hot water unit |
| CN106918105A (en) * | 2017-04-27 | 2017-07-04 | 广东美的制冷设备有限公司 | Air-conditioning system |
| CN107490090A (en) * | 2017-09-27 | 2017-12-19 | 广东美的暖通设备有限公司 | Air conditioner |
| CN108007016A (en) * | 2017-10-30 | 2018-05-08 | 珠海格力电器股份有限公司 | Heat pump system and control method for heat pump system |
| CN112665216A (en) * | 2020-11-27 | 2021-04-16 | 珠海格力电器股份有限公司 | Heat pump system and defrosting mode thereof |
| CN114353398A (en) * | 2021-12-02 | 2022-04-15 | 珠海格力电器股份有限公司 | Air conditioner for controlling flow path to defrost condenser and defrosting method |
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| CN105423447A (en) * | 2015-12-10 | 2016-03-23 | 广东志高空调有限公司 | Outdoor unit used for heat pump type air conditioner and heat pump type air conditioner |
| CN106595118A (en) * | 2016-12-27 | 2017-04-26 | 珠海格力电器股份有限公司 | Air-cooled cold and hot water unit |
| CN106918105A (en) * | 2017-04-27 | 2017-07-04 | 广东美的制冷设备有限公司 | Air-conditioning system |
| CN107490090A (en) * | 2017-09-27 | 2017-12-19 | 广东美的暖通设备有限公司 | Air conditioner |
| CN107490090B (en) * | 2017-09-27 | 2020-08-04 | 广东美的暖通设备有限公司 | Air conditioner |
| CN108007016A (en) * | 2017-10-30 | 2018-05-08 | 珠海格力电器股份有限公司 | Heat pump system and control method for heat pump system |
| CN112665216A (en) * | 2020-11-27 | 2021-04-16 | 珠海格力电器股份有限公司 | Heat pump system and defrosting mode thereof |
| CN114353398A (en) * | 2021-12-02 | 2022-04-15 | 珠海格力电器股份有限公司 | Air conditioner for controlling flow path to defrost condenser and defrosting method |
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