CN216203920U - Air conditioner - Google Patents
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- CN216203920U CN216203920U CN202121710010.6U CN202121710010U CN216203920U CN 216203920 U CN216203920 U CN 216203920U CN 202121710010 U CN202121710010 U CN 202121710010U CN 216203920 U CN216203920 U CN 216203920U
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- 239000003507 refrigerant Substances 0.000 claims abstract description 164
- 239000007788 liquid Substances 0.000 claims abstract description 36
- RWRIWBAIICGTTQ-UHFFFAOYSA-N difluoromethane Chemical group FCF RWRIWBAIICGTTQ-UHFFFAOYSA-N 0.000 claims description 8
- 229920006395 saturated elastomer Polymers 0.000 claims description 8
- 239000011555 saturated liquid Substances 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 abstract description 34
- 238000001816 cooling Methods 0.000 abstract description 17
- 238000005057 refrigeration Methods 0.000 description 15
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000007791 liquid phase Substances 0.000 description 3
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
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Abstract
The utility model discloses an air conditioner, which comprises: the heat exchange system comprises a compressor, an indoor heat exchanger, an outdoor heat exchanger, a throttling device and a liquid storage device, wherein the compressor, the indoor heat exchanger, the throttling device and the indoor heat exchanger are sequentially connected into a refrigerant loop; the liquid accumulator is connected between the smaller volume one of the indoor heat exchanger and the outdoor heat exchanger and the throttling device, and is provided with a first refrigerant port and a second refrigerant port, the first refrigerant port is communicated with the smaller volume one of the indoor heat exchanger and the outdoor heat exchanger, and the second refrigerant port is communicated with the throttling device. According to the air conditioner provided by the embodiment of the utility model, the automatic distribution of the cooling and heating refrigerant quantity can be realized, so that the cooling and heating performances are considered, and the cost is lower.
Description
Technical Field
The utility model relates to the technical field of air conditioning equipment, in particular to an air conditioner.
Background
In the air conditioner in the related technology, because the amount of the refrigerant which can be contained by the indoor heat exchanger and the outdoor heat exchanger is different from the optimal amount of the refrigerant which is needed in the processes of refrigeration and heating, the refrigerant mainly exists in the condenser in the heat exchange system, the refrigerant in the condenser exists in a supercooling area, the refrigerant in the area is pure liquid and has higher density, the refrigerant exists in the evaporator in gas, and the density of the liquid refrigerant is far greater than that of the gas refrigerant, the outdoor heat exchanger is the condenser in the process of refrigeration of the air conditioner, the indoor heat exchanger is the condenser in the process of heating, if the volumes of the indoor heat exchanger and the outdoor heat exchanger are not proper, the amount of the refrigerant which is conveyed by the air conditioner in the processes of refrigeration and heating is greatly different from the optimal amount of the needed refrigerant, for example, the proper amount of the refrigerant under the condition of refrigeration can appear under the condition of insufficient refrigerant when switching to heating, and the proper refrigeration and heating requirements can not be met at the same time, indoor comfort needs to be improved.
Therefore, some air conditioners are additionally provided with one or more than one liquid storage tanks and are also provided with one or more than one electromagnetic valves, although the air conditioners can better control the refrigerant quantity, the cost of the air conditioners is greatly increased due to the fact that the added electromagnetic valves belong to precise products and are high in price.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide an air conditioner that can achieve automatic distribution of cooling and heating refrigerant amounts, thereby achieving both cooling and heating performance, and at a low cost.
To achieve the above object, an embodiment according to the present invention proposes an air conditioner including: the heat exchange system comprises a compressor, an indoor heat exchanger, an outdoor heat exchanger, a throttling device and a liquid storage device, wherein the compressor, the indoor heat exchanger, the throttling device and the indoor heat exchanger are sequentially connected into a refrigerant loop; the liquid accumulator is connected between the smaller volume one of the indoor heat exchanger and the outdoor heat exchanger and the throttling device, and is provided with a first refrigerant port and a second refrigerant port, the first refrigerant port is communicated with the smaller volume one of the indoor heat exchanger and the outdoor heat exchanger, and the second refrigerant port is communicated with the throttling device.
According to the air conditioner provided by the embodiment of the utility model, the automatic distribution of the cooling and heating refrigerant quantity can be realized, so that the cooling and heating performances are considered, and the cost is lower.
According to some embodiments of the utility model, the accumulator is connected in series to the refrigerant circuit.
According to some embodiments of the present invention, a volume of the indoor heat exchanger is greater than a volume of the outdoor heat exchanger, the accumulator is connected between the throttling device and the outdoor heat exchanger, the first refrigerant port is communicated with the outdoor heat exchanger, the second refrigerant port is communicated with the throttling device, and a volume value V of the indoor heat exchanger is set to be larger than a volume value V of the outdoor heat exchangerin＝500cm3～700cm3Volume V of the outdoor heat exchangeroutIs 300cm3～500cm3。
According to some embodiments of the present invention, a volume of the indoor heat exchanger is smaller than a volume of the outdoor heat exchanger, the accumulator is connected between the throttling device and the indoor heat exchanger, the first refrigerant port is communicated with the indoor heat exchanger, the second refrigerant port is communicated with the throttling device, and a volume value V of the indoor heat exchanger is set to be smaller than a volume value V of the outdoor heat exchangerin＝500cm3～700cm3Volume V of the outdoor heat exchangeroutIs 1100cm3～1300cm3。
Some according to the utility modelIn a specific embodiment, one of the indoor heat exchanger and the outdoor heat exchanger having a larger volume is V0And the smaller one of the volumes is V1The volume of the reservoir is V: v ═ V (V)0-V1) X a; wherein a is a volume coefficient.
Further, the volume coefficient a is n × 72/M × (1+ (1-x) (x × M/s)). Wherein M is the refrigerant molecular weight, n is a correction coefficient, x is the dryness of the refrigerant of the evaporator, M is the volume ratio of the saturated gaseous refrigerant and the saturated liquid refrigerant corresponding to the pressure of the evaporator, and s is the gas-liquid velocity ratio.
Further, the value of the correction coefficient n is 0.1-0.5; the dryness x of the refrigerant of the evaporator is 0.1-0.5; the volume ratio m of the saturated gaseous refrigerant to the saturated liquid refrigerant corresponding to the pressure of the evaporator is 20-100; and the gas-liquid flow speed ratio s is 2-8.
According to some embodiments of the utility model, the coolant is difluoromethane.
According to some embodiments of the utility model, the air conditioner further comprises: a four-way valve having a first valve port, a second valve port, a third valve port and a fourth valve port, the first valve port being communicated with an exhaust port of the compressor, the second valve port being communicated with the outdoor heat exchanger, the third valve port being communicated with the indoor heat exchanger, the fourth valve port being communicated with an intake port of the compressor; the four-way valve is switchable between a first state and a second state, when the four-way valve is in the first state, the first valve port is communicated with the third valve port, and the second valve port is communicated with the fourth valve port, when the four-way valve is in the second state, the first valve port is communicated with the second valve port, and the third valve port is communicated with the fourth valve port.
According to some embodiments of the utility model, the air conditioner further comprises: and the gas-liquid separator is connected between the suction port of the compressor and the fourth valve port.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural view of a heat exchange system of an air conditioner according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a heat exchange system of an air conditioner according to another embodiment of the present invention.
Reference numerals:
a heat exchange system 1,
An indoor heat exchanger 100, an outdoor heat exchanger 200,
An accumulator 300, a first refrigerant port 301, a second refrigerant port 302,
A fourth valve port 504,
A compressor 600, a gas-liquid separator 610, a suction port 601 of the compressor, and a discharge port 602 of the compressor.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features.
In the description of the present invention, "a plurality" means two or more, and "several" means one or more.
An air conditioner according to an embodiment of the present invention is described below with reference to the accompanying drawings.
As shown in fig. 1 and 2, an air conditioner according to an embodiment of the present invention includes a heat exchange system 1, and the heat exchange system 1 includes a compressor 600, an indoor heat exchanger 100, an outdoor heat exchanger 200, a throttling device 400, and an accumulator 300.
The compressor 600, the indoor heat exchanger 100, the throttle device 400, and the indoor heat exchanger 100 are sequentially connected to form a refrigerant circuit. The accumulator 300 is connected between the smaller volume one of the indoor heat exchanger 100 and the outdoor heat exchanger 200 and the throttling device 400, the accumulator 300 is provided with a first refrigerant port 301 and a second refrigerant port 302, the first refrigerant port 301 is communicated with the smaller volume one of the indoor heat exchanger 100 and the outdoor heat exchanger 200, and the second refrigerant port 302 is communicated with the throttling device 400.
When the air conditioner is cooling, the indoor heat exchanger 100 is an evaporator, and the outdoor heat exchanger 200 is a condenser, and when the air conditioner is heating, the indoor heat exchanger 100 is a condenser, and the outdoor heat exchanger 200 is an evaporator. The refrigerant in the condenser is in a pure liquid state and has higher density. The refrigerant exists in the evaporator in the presence of gas, and the liquid density is much greater than the gas density, when the amount of refrigerant required by the outdoor heat exchanger 200 is less than the optimal amount of refrigerant, the accumulator 300 is disposed between the outdoor heat exchanger 200 and the throttling device 400, and when the amount of refrigerant required by the indoor heat exchanger 100 is less than the optimal amount of refrigerant, the accumulator 300 is disposed between the indoor heat exchanger 100 and the throttling device 400. The throttling device 400 may be an expansion valve, which converts the refrigerant from a high pressure to a low pressure.
For example, as shown in fig. 2, when the volume of the indoor heat exchanger 100 is smaller than that of the outdoor heat exchanger 200, when the air conditioner is cooling, the refrigerant is discharged from the compressor 600, and first flows into the outdoor heat exchanger 200, the refrigerant is converted from gas to liquid, and is converted from high pressure to low pressure by the throttling device 400, the accumulator 300 is disposed between the throttling device 400 and the indoor heat exchanger 100 according to the volumes of the indoor heat exchanger 100 and the outdoor heat exchanger 200, and the accumulator 300 contains the liquid low-pressure refrigerant, and continues to be transmitted to the indoor heat exchanger 100 along the refrigerant circuit, and returns to the compressor 600 again, thereby implementing the refrigeration cycle.
When the air conditioner heats, the refrigerant is discharged from the compressor 600, and firstly flows into the indoor heat exchanger 100, the refrigerant is converted into liquid from gas, because the volume of the indoor heat exchanger 100 is smaller, the refrigerant which cannot be accommodated by the indoor heat exchanger 100 is accommodated by the reservoir 300, at the moment, the refrigerant is still in a high-pressure state, and after passing through the reservoir 300, the refrigerant is converted into low pressure from high pressure by the throttling device 400 and is continuously transmitted to the outdoor heat exchanger 200 along a refrigerant loop, so that the heating effect is realized.
According to the air conditioner of the embodiment of the utility model, the reservoir 300 is arranged between the smaller one of the indoor heat exchanger 100 and the outdoor heat exchanger 200 and the throttling device 400, so that the capacity of the indoor heat exchanger 100 or the outdoor heat exchanger 200 for accommodating the refrigerant is increased, and the optimal refrigerant quantity is kept under the refrigerating and heating working conditions.
Specifically, the outdoor heat exchanger 200 serves as a condenser when the air conditioner is cooling, and the indoor heat exchanger 100 serves as a condenser when the air conditioner is heating. If the refrigerant quantity is determined during refrigeration, the refrigerant quantity contained in the condenser during heating is different from the required optimal refrigerant quantity, the liquid accumulator 300 is arranged between the smaller one of the indoor heat exchanger 100 and the outdoor heat exchanger 200 and the throttling device 400, when the smaller one of the indoor heat exchanger 100 and the outdoor heat exchanger 200 cannot contain enough refrigerant, the rest refrigerant can be stored in the liquid accumulator 300, balanced heat exchange is further realized between the indoor heat exchanger 100 and the outdoor heat exchanger 200, the refrigerant in the indoor heat exchanger 100 or the outdoor heat exchanger 200 and the refrigerant in the liquid accumulator 300 are transmitted along a refrigerant loop together, the optimal refrigerant quantity required by the air conditioner for refrigeration and heating is met, and the requirements for refrigeration and heating are met simultaneously.
In addition, the accumulator 300 is provided with the first refrigerant port 301 and the second refrigerant port 302, the first refrigerant port 301 is communicated with the smaller volume of the indoor heat exchanger 100 and the outdoor heat exchanger 200, the second refrigerant port 302 is communicated with the throttling device 400, and no additional electromagnetic valve or other devices are needed, so that the cost is reduced, and meanwhile, the refrigerant can be automatically transmitted along with the pressure and the heat in the refrigerant loop.
Therefore, according to the air conditioner provided by the embodiment of the utility model, the automatic distribution of the cooling and heating refrigerant quantity can be realized, so that the cooling and heating performance is considered, and the cost is lower.
In some embodiments of the present invention, as shown in fig. 1 or fig. 2, the accumulator 300 is connected in series with the refrigerant circuit.
Because reservoir 300 and refrigerant circuit establish ties, the reservoir 300 must be flowed through to the refrigerant in the refrigerant circuit, reservoir 300 has not only played the purpose of storing the refrigerant, the refrigerant in reservoir 300 can also participate in the refrigerant cycle in-process, when indoor heat exchanger 100 holds the refrigerant not enough, provide extra refrigerant for indoor heat exchanger 100, when outdoor heat exchanger 200 holds the refrigerant not enough, provide extra refrigerant for outdoor heat exchanger 200, guarantee that the air conditioner refrigerates and heats and all have sufficient refrigerant, reach good refrigeration and heating effect.
In some embodiments of the present invention, as shown in fig. 1, the volume of the indoor heat exchanger 100 is greater than the volume of the outdoor heat exchanger 200, the accumulator 300 is connected between the throttling device 400 and the outdoor heat exchanger 200, the first refrigerant port 301 is communicated with the outdoor heat exchanger 200, the second refrigerant port 302 is communicated with the throttling device 400, and the volume value V of the indoor heat exchanger 100 is set asin＝500cm3～700cm3Volume V of outdoor heat exchanger 200outIs 300cm3～500cm3。
For example, the indoor heat exchanger 100 has a volume of 600cm3Volume V of outdoor heat exchanger 200outIs 400cm3. When the air conditioner is refrigerating, the outdoor heat exchanger 200 is used as a condenser, and the air conditionerIn heating, the indoor heat exchanger 100 serves as a condenser, and the amount of refrigerant contained in the indoor heat exchanger 100 is greater than the amount of refrigerant contained in the outdoor heat exchanger 200. Through connecting reservoir 300 between throttling arrangement 400 and outdoor heat exchanger 200, provide the extra space that holds the refrigerant for outdoor heat exchanger 200, if the refrigerant volume of air conditioner is confirmed when refrigerating, the refrigerant in outdoor heat exchanger 200 and the reservoir 300 transmits to indoor heat exchanger 100 jointly, the required refrigerant is mostly held in indoor heat exchanger 100 when the air conditioner heats, indoor heat exchanger 100's volume is great, has stronger heating capacity, thereby the air conditioner all has higher heat transfer performance when refrigerating and heating.
In some embodiments of the present invention, the volume of the indoor heat exchanger 100 is smaller than the volume of the outdoor heat exchanger 200, the accumulator 300 is connected between the throttling device 400 and the indoor heat exchanger 100, the first refrigerant port 301 is communicated with the indoor heat exchanger 100, the second refrigerant port 302 is communicated with the throttling device 400, and the volume value V of the indoor heat exchanger 100 is set to be Vin＝500cm3～700cm3Volume V of outdoor heat exchanger 200outIs 1100cm3～1300cm3。
For example, the indoor heat exchanger 100 has a volume of 600cm3Volume V of outdoor heat exchanger 200outIs 1200cm3. When the air conditioner is cooling, the outdoor heat exchanger 200 serves as a condenser, and when the air conditioner is heating, the indoor heat exchanger 100 serves as a condenser, and the amount of refrigerant contained in the indoor heat exchanger 100 is smaller than the amount of refrigerant contained in the outdoor heat exchanger 200. Through connecting reservoir 300 between throttling arrangement 400 and indoor heat exchanger 100, provide the extra space that holds the refrigerant for indoor heat exchanger 100, if the refrigerant volume of air conditioner is confirmed when refrigerating, the air conditioner heats in the required refrigerant holds and indoor heat exchanger 100 and reservoir 300, refrigerant in indoor heat exchanger 100 and the reservoir 300 transmits to outdoor heat exchanger 200 jointly, indoor heat exchanger 100 also can reach stronger heating ability to all have higher heat transfer performance refrigerating and heating.
In some embodiments of the present invention, the one of the indoor heat exchanger 100 and the outdoor heat exchanger 200 having the larger volume isV0And the smaller one of the volumes is V1The volume of the reservoir 300, V, satisfies:
V＝(V0-V1) And x a, wherein a is a volume coefficient.
Thus, the volume V of the accumulator 300 has a certain multiple relation with the volume of the indoor heat exchanger 100 and the volume of the outdoor heat exchanger 200, and passes through the volume V of the indoor heat exchanger 100inAnd volume V of outdoor heat exchanger 200outThe volume of the accumulator 300 is reasonably determined, and the refrigerant amount contained in the accumulator 300 is ensured to be suitable for supplementing the refrigerant in the indoor heat exchanger 100 or the outdoor heat exchanger 200, and sufficient refrigerants are provided during refrigeration and heating.
Further, the volume coefficient a is n × 72/M × (1+ (1-x) (x × M/s)).
Wherein M is the refrigerant molecular weight, n is a correction coefficient, x is the dryness of the refrigerant of the evaporator, M is the volume ratio of the saturated gaseous refrigerant and the saturated liquid refrigerant corresponding to the pressure of the evaporator, and s is the gas-liquid velocity ratio.
It can be understood that: the evaporator refrigerant dryness x refers to the refrigerant dryness of the indoor heat exchanger 100 in cooling or the refrigerant dryness of the outdoor heat exchanger 200 in heating. The volume ratio m of the saturated gaseous refrigerant to the saturated liquid refrigerant corresponding to the evaporator pressure is a volume ratio of the outdoor heat exchanger 200 during cooling or the indoor heat exchanger 100 during heating.
And the gas-liquid velocity ratio s is (vg/vl) ^ (1/3), where vl is the saturated gaseous refrigerant specific volume corresponding to the evaporator pressure, and vg is the saturated liquid refrigerant specific volume corresponding to the evaporator pressure.
Furthermore, the value of the correction coefficient n is 0.1-0.5, the dryness x of the refrigerant of the evaporator is 0.1-0.5, the volume ratio m of the saturated gaseous refrigerant to the saturated liquid refrigerant corresponding to the pressure of the evaporator is 20-100, and the gas-liquid flow rate ratio s is 2-8.
In some embodiments of the utility model, the refrigerant is difluoromethane, and dichloromethane is adopted, so that the refrigerant has stable chemical properties, and has the advantages of energy saving, carbon reduction, environmental protection and no toxicity. Wherein difluoromethane has a molecular weight of 52.
For example, the volume V of the indoor heat exchanger 100in＝600cm3Volume V of outdoor heat exchanger 200out＝1200cm3When M is 52, x is 0.3, M is 50, and s is 4,
V＝(V0-V1)×a
＝＝(1200cm3-600cm3)×n×72/M×(1+(1-x)(x×m/s))
＝(1200cm3-600cm3)×0.15×(72/52)×(1+(1-0.3)/(0.3×50/4))
＝147cm3＝147mL。
at this time, the volume of the reservoir 300 is 147mL,
as another example, the volume V of the indoor heat exchanger 100in＝600cm3Volume V of outdoor heat exchanger 200out＝400cm3When M is 52, x is 0.3, M is 50, and s is 4,
V＝(V0-V1)×a
＝(600cm3-400cm3)×n×72/M×(1+(1-x)(x×m/s))
＝(600cm3-400cm3)×0.15×(72/52)×(1+(1-0.3)/(0.3×50/4))
＝49cm3＝49mL。
at this time, the volume of the reservoir 300 was 49cm3。
In some embodiments of the present invention, as shown in fig. 1 and 2, the air conditioner further includes a four-way valve 500, the four-way valve 500 having a first port 501, a second port 502, a third port 503 and a fourth port 504, the first port 501 communicating with an exhaust port 602 of the compressor, the second port 502 communicating with the outdoor heat exchanger 200, the third port 503 communicating with the indoor heat exchanger 100, and the fourth port 504 communicating with a suction port 601 of the compressor.
The four-way valve 500 is switchable between a first state and a second state, wherein when the four-way valve 500 is in the first state, the first port 501 is communicated with the third port 503, and the second port 502 is communicated with the fourth port 504, and when the four-way valve 500 is in the second state, the first port 501 is communicated with the second port 502, and the third port 503 is communicated with the fourth port 504.
For example, the first state may be a cooling state and the second state may be a heating state.
In both the first state and the second state, the accumulator 300 is connected between the expansion device 400 and the indoor heat exchanger 100 when the volume of the indoor heat exchanger 100 is smaller than the volume of the outdoor heat exchanger 200, and the accumulator 300 is connected between the expansion device 400 and the outdoor heat exchanger 200 when the volume of the outdoor heat exchanger 200 is larger than the volume of the indoor heat exchanger 100.
When the four-way valve 500 is communicated with the refrigerant circuit in the first state, the refrigerant flows among the compressor 600, the indoor heat exchanger 100, the throttle device 400, and the outdoor heat exchanger 200 in sequence. When the four-way valve 500 is communicated with the refrigerant circuit in the second state, the refrigerant flows through the compressor 600, the outdoor heat exchanger 200, the throttle device 400, and the indoor heat exchanger 100 in this order. Therefore, the four-way valve 500 is arranged, so that the efficient switching between the refrigeration and the heating of the air conditioner can be realized, and the refrigeration and heating operation of the air conditioner is ensured.
In some embodiments of the present invention, the air conditioner further includes a gas-liquid separator 610, and the gas-liquid separator 610 is connected between the suction port 601 of the compressor and the fourth valve port 504.
By arranging the gas-liquid separator 610, the gas-liquid separator 610 can suck gas-liquid two-phase refrigerant and perform gas-liquid separation on the refrigerant, and after the gas-liquid two-phase refrigerant is sucked by the gas-liquid separator 610, the gaseous refrigerant returns to the compressor 600 again, so that the ratio of the gaseous refrigerant entering the heat exchanger is increased, and the liquid impact phenomenon is avoided.
Other configurations and operations of the air conditioner according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail herein.
The air conditioner performs a refrigeration cycle of the air conditioner by using a compressor, a condenser, a throttle device, and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies refrigerant to the air that has been conditioned and heat-exchanged.
The compressor compresses a refrigerant gas in a high-temperature and high-pressure state and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.
The throttling device expands the liquid-phase refrigerant in a high-temperature and high-pressure state condensed in the condenser into a low-pressure liquid-phase refrigerant. The evaporator evaporates the refrigerant expanded in the throttling device, and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator can achieve a cooling effect by heat-exchanging with a material to be cooled using latent heat of evaporation of a refrigerant. The air conditioner can adjust the temperature of the indoor space throughout the cycle.
The indoor heat exchanger and the outdoor heat exchanger serve as a condenser or an evaporator. When the indoor heat exchanger is used as a condenser, the air conditioner is used as a heater in a heating mode, and when the indoor heat exchanger is used as an evaporator, the air conditioner is used as a cooler in a cooling mode.
In the description herein, references to the description of "a particular embodiment," "a particular example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. An air conditioner, comprising:
the heat exchange system comprises a compressor, an indoor heat exchanger, an outdoor heat exchanger, a throttling device and a liquid storage device, wherein the compressor, the indoor heat exchanger, the throttling device and the indoor heat exchanger are sequentially connected into a refrigerant loop;
the liquid accumulator is connected between the smaller volume one of the indoor heat exchanger and the outdoor heat exchanger and the throttling device, and is provided with a first refrigerant port and a second refrigerant port, the first refrigerant port is communicated with the smaller volume one of the indoor heat exchanger and the outdoor heat exchanger, and the second refrigerant port is communicated with the throttling device.
2. The air conditioner as claimed in claim 1, wherein the accumulator is connected in series to the refrigerant circuit.
3. The air conditioner according to claim 1, wherein a volume of the indoor heat exchanger is larger than a volume of the outdoor heat exchanger, the accumulator is connected between the throttling device and the outdoor heat exchanger, the first refrigerant port is communicated with the outdoor heat exchanger, the second refrigerant port is communicated with the throttling device, and a volume value V of the indoor heat exchanger is set to be larger than a volume value V of the outdoor heat exchangerin＝500cm3～700cm3Volume V of the outdoor heat exchangeroutIs 300cm3～500cm3。
4. The air conditioner according to claim 1, wherein a volume of the indoor heat exchanger is smaller than a volume of the outdoor heat exchanger, the accumulator is connected between the throttling device and the indoor heat exchanger, the first refrigerant port is communicated with the indoor heat exchanger, the second refrigerant port is communicated with the throttling device, and a volume value V of the indoor heat exchanger is set to be smaller than a volume value V of the outdoor heat exchangerin＝500cm3～700cm3Volume V of the outdoor heat exchangeroutIs 1100cm3～1300cm3。
5. The air conditioner according to claim 1, wherein the one of the indoor heat exchanger and the outdoor heat exchanger having a larger volume is V0And the smaller one of the volumes is V1The volume of the reservoir is V:
V＝(V0-V1)×a；
wherein a is a volume coefficient.
6. The air conditioner according to claim 5, wherein the volume coefficient a is n × 72/M × (1+ (1-x) (x × M/s));
wherein M is the refrigerant molecular weight, n is a correction coefficient, x is the dryness of the refrigerant of the evaporator, M is the volume ratio of the saturated gaseous refrigerant and the saturated liquid refrigerant corresponding to the pressure of the evaporator, and s is the gas-liquid velocity ratio.
7. The air conditioner according to claim 6, wherein the value of the correction coefficient n is 0.1-0.5;
the dryness x of the refrigerant of the evaporator is 0.1-0.5;
the volume ratio m of the saturated gaseous refrigerant to the saturated liquid refrigerant corresponding to the pressure of the evaporator is 20-100;
and the gas-liquid flow speed ratio s is 2-8.
8. The air conditioner according to any one of claims 1 to 7, wherein the refrigerant is difluoromethane.
9. The air conditioner according to any one of claims 1 to 7, further comprising:
a four-way valve having a first valve port, a second valve port, a third valve port and a fourth valve port, the first valve port being communicated with an exhaust port of the compressor, the second valve port being communicated with the outdoor heat exchanger, the third valve port being communicated with the indoor heat exchanger, the fourth valve port being communicated with an intake port of the compressor;
the four-way valve is switchable between a first state and a second state, when the four-way valve is in the first state, the first valve port is communicated with the third valve port, and the second valve port is communicated with the fourth valve port, when the four-way valve is in the second state, the first valve port is communicated with the second valve port, and the third valve port is communicated with the fourth valve port.
10. The air conditioner according to claim 9, further comprising:
and the gas-liquid separator is connected between the suction port of the compressor and the fourth valve port.
Priority Applications (1)
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| CN202121710010.6U CN216203920U (en) | 2021-07-26 | 2021-07-26 | Air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121710010.6U CN216203920U (en) | 2021-07-26 | 2021-07-26 | Air conditioner |
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| CN216203920U true CN216203920U (en) | 2022-04-05 |
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| CN202121710010.6U Active CN216203920U (en) | 2021-07-26 | 2021-07-26 | Air conditioner |
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| CN (1) | CN216203920U (en) |
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