CN103542566A - Room air conditioner - Google Patents
Room air conditioner Download PDFInfo
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- CN103542566A CN103542566A CN201210238179.5A CN201210238179A CN103542566A CN 103542566 A CN103542566 A CN 103542566A CN 201210238179 A CN201210238179 A CN 201210238179A CN 103542566 A CN103542566 A CN 103542566A
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- 239000007788 liquid Substances 0.000 claims abstract description 102
- 239000003507 refrigerant Substances 0.000 claims abstract description 15
- 239000012530 fluid Substances 0.000 claims description 38
- 238000001816 cooling Methods 0.000 claims description 22
- 238000001704 evaporation Methods 0.000 claims description 21
- 230000008020 evaporation Effects 0.000 claims description 20
- 238000010438 heat treatment Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 3
- 230000001502 supplementing effect Effects 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 2
- 238000004781 supercooling Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 55
- 229920006395 saturated elastomer Polymers 0.000 description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 7
- 229910052782 aluminium Inorganic materials 0.000 description 7
- 239000010949 copper Substances 0.000 description 7
- 229910052802 copper Inorganic materials 0.000 description 7
- 229910000838 Al alloy Inorganic materials 0.000 description 5
- 230000007613 environmental effect Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 229910000881 Cu alloy Inorganic materials 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- RWRIWBAIICGTTQ-UHFFFAOYSA-N anhydrous difluoromethane Natural products FCF RWRIWBAIICGTTQ-UHFFFAOYSA-N 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000009189 diving Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005549 size reduction Methods 0.000 description 1
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Abstract
The invention provides a room air conditioner, comprising an outdoor unit, an indoor unit, a connecting pipe and a first throttling element; the indoor unit comprises an indoor heat exchanger, and the outdoor unit comprises a compressor, an outdoor heat exchanger and an air supply supercooling unit; the air supply supercooling unit comprises a second throttling element and a flash evaporator or an intermediate heat exchanger; wherein the inner diameter of the low-pressure gas pipe ranges from 5.2 to 14.5 mm; the inner diameter of the high-pressure gas pipe ranges from 4 to 10 mm; the inner diameter of the low-pressure liquid pipe ranges from 2.5 to 8 mm; the inner diameter of the high-pressure liquid pipe ranges from 2.5 to 6.5 mm; the inner diameter of the medium-pressure liquid pipe ranges from 2.5 to 6.5 mm; the inner diameter of the medium pressure gas tube ranges from 2.5 to 6.5 mm. The invention reduces the size of the pipelines of the room air conditioner, reduces the filling amount of the refrigerant, improves the energy-saving and environment-friendly level of the room air conditioner and can adapt to the application requirement of the environment-friendly refrigerant with high heat exchange efficiency.
Description
Technical field
The present invention relates to air-conditioner, in particular to a kind of room air conditioner.
Background technology
The configuration sized such as the heat exchanger of existing room air conditioner and pipeline are all larger, cause the filling quantity of refrigerant of air-conditioning system more.And the cold-producing medium that room air conditioner uses is at present as the greenhouse effects of R22 and the R410A value (GWP) higher (being about respectively 1810 and 2100) of diving, the direct carbon emission amount of room air conditioner is high becomes the environmental issue that industry and government pay close attention to.Adopt the alternative R22 of the lower GWP cold-producing mediums such as R290 and R32 and cold-producing medium such as GWP such as height such as R410A grade to become the main path that current industry solves this environmental issue.But the cold-producing medium such as R290 and R32 has combustibility in various degree, limited again to a certain extent the safe handling filling quantity of cold-producing medium.In order to reduce room air conditioner filling quantity of refrigerant and combustible refrigerant safe handling risk, simultaneously also in order to reduce material consumption and to improve air-conditioner cost performance, for environmental protection refrigerant again optimal design and reduce room air conditioner pipeline and the size tool of two device heat exchanger tubes etc. is of great significance.
Summary of the invention
The present invention aims to provide a kind of room air conditioner, large and use the high technical problem of risk safely to solve room air conditioner of the prior art filling quantity when using low temperature chamber effect to dive value cold-producing medium.
To achieve these goals, according to an aspect of the present invention, provide a kind of room air conditioner, comprise outdoor unit, indoor unit, connects indoor unit and outdoor unit to form the tube connector of refrigerant circulation loop, and is arranged on the first throttle element in tube connector; Indoor unit comprises indoor heat exchanger, and outdoor unit comprises compressor, outdoor heat exchanger and tonifying Qi sub-cooling unit; Tonifying Qi sub-cooling unit comprises second section fluid element, also comprises flash evaporation or Intermediate Heat Exchanger; Tube connector comprises: high-pressure gas pipe, connects the exhaust outlet of compressor and the first end of outdoor heat exchanger; Highly pressurised liquid pipe, the second end of junction chamber external heat exchanger and the first end of second section fluid element in the system that contains flash evaporation, or the second end of junction chamber external heat exchanger and the first end of first throttle element in the system that contains Intermediate Heat Exchanger; Middle press liquid pipe, second end and flash evaporation and the first end and the flash evaporation that are connected first throttle element of connection second section fluid element; Low pressure liquid pipe, connects the second end of first throttle element and the first end of indoor heat exchanger; Low-pressure gas pipe, connects the second end of indoor heat exchanger and the air entry of compressor; Medium pressure gas pipe, the middle gas supplementing opening of connection tonifying Qi sub-cooling unit and compressor; The inside diameter ranges of low-pressure gas pipe is 5.2 millimeters to 14.5 millimeters; The inside diameter ranges of high-pressure gas pipe is 4 millimeters to 10 millimeters; The inside diameter ranges of low pressure liquid pipe is 2.5 millimeters to 8 millimeters; The inside diameter ranges of highly pressurised liquid pipe is 2.5 millimeters to 6.5 millimeters; The inside diameter ranges of middle press liquid pipe is 2.5 millimeters to 6.5 millimeters; The inside diameter ranges of medium pressure gas pipe is 2.5 millimeters to 6.5 millimeters.
Further, when the specified refrigerating capacity of room air conditioner is for being less than 3.6 kilowatt hours, the inside diameter ranges of low-pressure gas pipe is 5.2 millimeters to 7.8 millimeters; When the specified refrigerating capacity of room air conditioner be 3.6 kilowatts to 5 kilowatt hours, the inside diameter ranges of low-pressure gas pipe is 7 millimeters to 9 millimeters; When the specified refrigerating capacity of room air conditioner be 5 kilowatts to 12 kilowatt hours, the inside diameter ranges of low-pressure gas pipe is 8.5 millimeters to 11.5 millimeters; When the specified refrigerating capacity of room air conditioner be 12 kilowatts to 16 kilowatt hours, the inside diameter ranges of low-pressure gas pipe is 11 millimeters to 14.5 millimeters.
Further, when the specified refrigerating capacity of room air conditioner is for being less than 3.6 kilowatt hours, the inside diameter ranges of low-pressure gas pipe is 6.5 millimeters to 7 millimeters; When the specified refrigerating capacity of room air conditioner be 3.6 kilowatts to 5 kilowatt hours, the inside diameter ranges of low-pressure gas pipe is 8 millimeters to 8.6 millimeters; When the specified refrigerating capacity of room air conditioner be 5 kilowatts to 12 kilowatt hours, the inside diameter ranges of low-pressure gas pipe is 10 millimeters to 10.6 millimeters; When the specified refrigerating capacity of room air conditioner be 12 kilowatts to 16 kilowatt hours, the inside diameter ranges of low-pressure gas pipe is 11.5 millimeters to 12.5 millimeters.
Further, when the specified refrigerating capacity of room air conditioner is for being less than 3.6 kilowatt hours, the inside diameter ranges of high-pressure gas pipe is 4 millimeters to 6.5 millimeters; When the specified refrigerating capacity of room air conditioner be 3.6 kilowatts to 7.2 kilowatt hours, the inside diameter ranges of high-pressure gas pipe is 5.5 millimeters to 7.5 millimeters; When the specified refrigerating capacity of room air conditioner be 7.2 kilowatts to 16 kilowatt hours, the inside diameter ranges of high-pressure gas pipe is 7.2 millimeters to 10 millimeters.
Further, when the specified refrigerating capacity of room air conditioner is for being less than 3.6 kilowatt hours, the inside diameter ranges of high-pressure gas pipe is 4.5 millimeters to 5.5 millimeters; When the specified refrigerating capacity of room air conditioner be 3.6 kilowatts to 7.2 kilowatt hours, the inside diameter ranges of high-pressure gas pipe is 6.5 millimeters to 7.2 millimeters; When the specified refrigerating capacity of room air conditioner be 7.2 kilowatts to 16 kilowatt hours, the inside diameter ranges of high-pressure gas pipe is 7.5 millimeters to 8.5 millimeters.
Further, when the specified refrigerating capacity of room air conditioner is for being less than 7.2 kilowatt hours, the inside diameter ranges of highly pressurised liquid pipe, middle press liquid pipe and medium pressure gas pipe is 2.5 millimeters to 5 millimeters; When the specified refrigerating capacity of room air conditioner be 7.2 kilowatts to 16 kilowatt hours, the inside diameter ranges of highly pressurised liquid pipe, middle press liquid pipe and medium pressure gas pipe is 4.5 millimeters to 6.5 millimeters.
Further, when the specified refrigerating capacity of room air conditioner is for being less than 7.2 kilowatt hours, the inside diameter ranges of highly pressurised liquid pipe, middle press liquid pipe and medium pressure gas pipe is 3.8 millimeters to 4.5 millimeters; When the specified refrigerating capacity of room air conditioner be 7.2 kilowatts to 16 kilowatt hours, the inside diameter ranges of highly pressurised liquid pipe, middle press liquid pipe and medium pressure gas pipe is 4.8 millimeters to 5.5 millimeters.
Further, when the specified refrigerating capacity of room air conditioner is for being less than 5 kilowatt hours, the inside diameter ranges of low pressure liquid pipe is 2.5 millimeters to 5 millimeters; When the specified refrigerating capacity of room air conditioner be 5 kilowatts to 7.2 kilowatt hours, the inside diameter ranges of low pressure liquid pipe is 4.5 millimeters to 6 millimeters; When the specified refrigerating capacity of room air conditioner be 7.2 kilowatts to 16 kilowatt hours, the inside diameter ranges of low pressure liquid pipe is 5.5 millimeters to 8 millimeters.
Further, when the specified refrigerating capacity of room air conditioner is for being less than 5 kilowatt hours, the inside diameter ranges of low pressure liquid pipe is 3.8 millimeters to 4.5 millimeters; When the specified refrigerating capacity of room air conditioner be 5 kilowatts to 7.2 kilowatt hours, the inside diameter ranges of low pressure liquid pipe is 4.8 millimeters to 5.5 millimeters; When the specified refrigerating capacity of room air conditioner be 7.2 kilowatts to 16 kilowatt hours, the inside diameter ranges of low pressure liquid pipe is 6.5 millimeters to 7.2 millimeters.
Further, tonifying Qi sub-cooling unit is comprised of flash evaporation and second section fluid element, first throttle element is electric expansion valve or heating power expansion valve, first throttle element has the second pipe arrangement being connected with low pressure liquid pipe and the first pipe arrangement being connected with middle press liquid pipe, the second pipe arrangement is 1 ~ 1.4 with the ratio of the internal diameter of the first pipe arrangement, the second pipe arrangement is 2.5 ~ 4 with the ratio of the internal diameter of the valve port of first throttle element, the second pipe arrangement is that the 0.95 ~ 1.05, first pipe arrangement is 0.95 ~ 1.05 with the ratio of the internal diameter of middle press liquid pipe with the ratio of the internal diameter of low pressure liquid pipe.
Further, tonifying Qi sub-cooling unit is comprised of flash evaporation and second section fluid element, second section fluid element is electric expansion valve or heating power expansion valve, second section fluid element has the second pipe arrangement being connected with middle press liquid pipe and the first pipe arrangement being connected with highly pressurised liquid pipe, the second pipe arrangement is 1 ~ 1.1 with the ratio of the internal diameter of the first pipe arrangement, the first pipe arrangement is that the 2.5 ~ 4, first pipe arrangement is 0.95 ~ 1.05 with the ratio of the internal diameter of highly pressurised liquid pipe with the ratio of the internal diameter of the valve port of second section fluid element.
Further, tonifying Qi sub-cooling unit is comprised of Intermediate Heat Exchanger and second section fluid element, first throttle element is electric expansion valve or heating power expansion valve, first throttle element has the first pipe arrangement that the second pipe arrangement of being connected with low pressure liquid pipe is connected with highly pressurised liquid pipe with through Intermediate Heat Exchanger, the second pipe arrangement is 1 ~ 1.4 with the ratio of the internal diameter of the first pipe arrangement, the second pipe arrangement is 3 ~ 5 with the ratio of the internal diameter of the valve port of first throttle element, the second pipe arrangement is that the 0.95 ~ 1.05, first pipe arrangement is 0.95 ~ 1.05 with the ratio of the internal diameter of highly pressurised liquid pipe with the ratio of the internal diameter of low pressure liquid pipe.
Further, tonifying Qi sub-cooling unit is comprised of Intermediate Heat Exchanger and second section fluid element, second section fluid element is electric expansion valve or heating power expansion valve, second section fluid element has the second pipe arrangement being connected with Intermediate Heat Exchanger and the first pipe arrangement being connected with highly pressurised liquid pipe, the second pipe arrangement is 1 ~ 1.1 with the ratio of the internal diameter of the first pipe arrangement, the first pipe arrangement is that the 3 ~ 5, first pipe arrangement is 0.95 ~ 1.05 with the ratio of the internal diameter of highly pressurised liquid pipe with the ratio of the internal diameter of the valve port of second section fluid element.
Further, the ratio of the expand tube external diameter of the heat exchanger tube of indoor heat exchanger and the heat exchanger tube of outdoor heat exchanger is 0.67 ~ 1.5.
Further, the external diameter of the expand tube of indoor heat exchanger heat exchanger tube is that scope is 4.15 millimeters to 7.5 millimeters.
Further, indoor heat exchanger comprises one or more heat exchanger tubes, and the expand tube external diameter scope of heat exchanger tube is the combination of 4.15 millimeters to 4.3 millimeters, 5.15 millimeters to 5.35 millimeters, 6.2 millimeters to 6.35 millimeters, 6.55 millimeters to 6.75 millimeters, 7.25 millimeters to 7.5 millimeters or above number range.
Further, the external diameter of the expand tube of outdoor heat exchanger heat exchanger tube is that scope is 4.15 millimeters to 8.5 millimeters.
Further, outdoor heat exchanger comprises one or more heat exchanger tubes, and the expand tube external diameter scope of heat exchanger tube is the combination of 4.15 millimeters to 4.3 millimeters, 5.15 millimeters to 5.35 millimeters, 6.2 millimeters to 6.35 millimeters, 6.55 millimeters to 6.75 millimeters, 7.25 millimeters to 7.5 millimeters, 8.25 to 8.5 millimeters or above number range.
Further, indoor heat exchanger or outdoor heat exchanger are micro-channel heat exchanger, and the flat tube cross section outer rim width of micro-channel heat exchanger is 12 millimeters to 25 millimeters, is highly 1 millimeter to 2 millimeters, and hole count is 0.5 to 1.2/millimeter with the ratio of width.
Further, the flat tube cross section outer rim width of micro-channel heat exchanger is 14 millimeters to 18 millimeters or 18 to 20 millimeters, is highly 1.2 millimeters to 1.4 millimeters or 1.4 millimeters to 2 millimeters.
Further, outdoor unit can also comprise exhaust outlet and the air entry that connects respectively compressor, the four-way change-over valve of outdoor heat exchanger and indoor heat exchanger, the S pipe that four-way change-over valve connects the air entry of compressor is 1 with the ratio of internal diameter that is connected the E pipe of indoor heat exchanger, S pipe is 1 ~ 1.8 with the ratio of internal diameter of D pipe that is connected the exhaust outlet of compressor, S pipe is 1 ~ 1.8 with the ratio of the internal diameter of the C pipe of junction chamber external heat exchanger, the main valve body of four-way change-over valve is 1.8 ~ 2.5 with the ratio of the internal diameter of S pipe, the length of main valve body is 8 ~ 11 with the ratio of S bore, S pipe is 0.95 ~ 1.05 with the ratio of the internal diameter of low-pressure gas pipe, D pipe is 0.95 ~ 1.05 with the ratio of the internal diameter of high-pressure gas pipe.
Further, low-pressure gas pipe is 1.5 ~ 2.1 with the ratio of the internal diameter of low pressure liquid pipe, low-pressure gas pipe is 1.1 ~ 1.6 with the ratio of the internal diameter of high-pressure gas pipe, and the ratio of the internal diameter of low-pressure gas pipe and highly pressurised liquid pipe, middle press liquid pipe and medium pressure gas pipe is between 1.6 ~ 2.5.
Further, room air conditioner uses the mix refrigerant of R32 cold-producing medium or R32 and R1234yf or R1234ze, and in mix refrigerant, the mass ratio of R32 is more than 50%.
The room air conditioner of applying technical scheme of the present invention reduces the size of room air conditioner pipeline etc., has reduced filling quantity of refrigerant, promotes the energy-conservation and Environmental Protection Level of room air conditioner.Further, the pipeline of reduced size can adapt to the application demand of the environmental protection refrigerant of high heat exchange efficiency.
Accompanying drawing explanation
The Figure of description that forms the application's a part is used to provide a further understanding of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 shows the system diagram of the first embodiment of room air conditioner of the present invention;
Fig. 2 shows the system diagram of the second embodiment of room air conditioner of the present invention;
The dimensional drawing that pipeline internal diameter when the room air conditioner that Fig. 3 shows prior art uses R22 cold-producing medium increases with specified refrigerating capacity;
The size table that pipeline internal diameter when the room air conditioner that Fig. 4 shows prior art uses R22 cold-producing medium increases with specified refrigerating capacity;
The dimensional drawing that pipeline internal diameter when Fig. 5 shows room air conditioner use R32 cold-producing medium of the present invention increases with specified refrigerating capacity; And
The size table that pipeline internal diameter when Fig. 6 shows room air conditioner use R32 cold-producing medium of the present invention increases with specified refrigerating capacity.
The specific embodiment
It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the application can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.
Referring to Fig. 1, the room air conditioner of the first embodiment of the present invention is by outdoor unit 12 and indoor unit 13 and be connected indoor unit 13 and form to form the first tube connector 801 and second tube connector 901 of refrigerant circulation loop with outdoor unit 12.Wherein indoor unit comprises an indoor heat exchanger 3.Outdoor unit 12 comprises compressor 1 and outdoor heat exchanger 2 etc.Indoor unit 13 or outdoor unit 12 comprise the first throttle element 401 being arranged in connecting line, in outdoor unit 12, be provided with the liquid stop valve 601 being located in the second tube connector 901, be located at the gas stop valve 602 in the first tube connector 801, the gas-liquid separator 7 of compressor 1 one sides, is connected to the parts such as four-way change-over valve 5 between compressor 1, outdoor heat exchanger 2, gas separator 7 and gas stop valve 602.In addition, this room air conditioner also comprises a tonifying Qi sub-cooling unit 15, this tonifying Qi sub-cooling unit 15 by the flash evaporation 1401 of junction chamber external heat exchanger 2, compressor 1 and first throttle element 401 and be arranged on flash evaporation 1401 and outdoor heat exchanger 2 between second section fluid element 402 form.
Preferably, second section fluid element 402 and first throttle element 401 can be electric expansion valve, heating power expansion valve, restriction sleeve and capillary, can be also the combinations of aforementioned any element.Indoor heat exchanger 3 and outdoor heat exchanger 2 can be finned tube exchanger or micro-channel heat exchanger.Compressor 1 can be rotor compressor or screw compressor or piston compressor; Compressor 1 can be constant speed compressor or speed variable compressor.In room air conditioner, filled cold-producing medium can be HFC32(difluoromethane).
Referring to Fig. 2, the room air conditioner of second embodiment of the invention is with respect to the change of the first embodiment, and tonifying Qi sub-cooling unit 15 has replaced flash evaporation 1401 by Intermediate Heat Exchanger 1402.
Except two embodiment that illustrate, room air conditioner of the present invention can comprise the arbitrarily combination of an indoor heat exchanger and outdoor heat exchanger, to adapt to the not demand of chummery number and ambient conditions.
Adopt thermodynamic cycle theory analysis (calculate with analyze operating mode and the result drawing respectively in Table 1 and table 2) show, the unit mass refrigerating capacity of R32 all exceeds more than 50% than R22 and R410A, under equal refrigerating capacity, R32 mass flow significantly reduces, heat exchanger and pipeline flow pressure drop and corresponding saturated temperature drop all will significantly reduce, and this just means that the heat exchanger of R32 room air conditioner and pipeline size have and reduces more greatly space.R32 volume refrigerating capacity compressor exceeds approximately 57% and 9% than R22 and R410A respectively, and under equal refrigerating capacity, the relative R22 of R32 compressor displacement will significantly reduce, and identical R410A also has obviously and reduces.
| Condensation temperature | Coldly go out degree of supercooling | Evaporating temperature | Steam the degree of superheat |
| 44 | 5 | 10 | 5 |
| The saturated temperature drop of blast pipe | The saturated temperature drop of condenser | The saturated temperature drop of evaporimeter | The saturated temperature drop of air intake duct |
| 0.5 | 1 | 3 | 2 |
Table 1 cold-producing medium thermodynamic cycle theory analysis operating mode (unit: ℃)
| Cold-producing medium | R22 | R410A | R32 | |
| Quality refrigerating capacity | kJ/kg | 165.3 | 167.7 | 252.1 |
| Volume refrigerating capacity compressor | kJ/m3 | 4254 | 6147 | 6691 |
| Blast pipe pressure drop | kPa | 20.18 | 31.71 | 32.66 |
| Condenser pressure drop | kPa | 39.83 | 55.53 | 64.43 |
| Evaporimeter pressure drop | kPa | 63.61 | 102.5 | 102 |
| Air intake duct pressure drop | kPa | 40.09 | 62.33 | 64.33 |
Table 2 cold-producing medium thermodynamic cycle theoretical analysis result
From heat exchanger heat exchange angle analysis, thereby the saturated temperature drop that in condenser or evaporimeter, flow pressure drop causes reduces exchange capability of heat by the effective heat transfer temperature difference that reduces heat exchanger.As seen from Table 2, under identical saturated temperature drop, use the condenser of R32 and the pressure drop that evaporimeter pressure drop is all significantly higher than the like product that uses R22, that is under equal heat exchanger pressure drop, the saturated temperature drop of R32 will be starkly lower than R22, and this lays a good foundation for R32 heat exchanger heat-exchanging tube size reduction.Similarly analyze and be equally applicable to other as parts such as restricting element and valve classes.
Thus, the present invention has reduced the size of the parts such as pipeline, heat exchanger and restricting element of room air conditioner, and the present invention uses the room air conditioner system pipeline dimensional configurations scheme of R32 as follows:
During specified refrigerating capacity Qe=2.0 ~ 16kW, low-pressure gas pipe is 1.5 ~ 2.1 with the ratio of the internal diameter of low pressure liquid pipe, low-pressure gas pipe is 1.1 ~ 1.6 with the ratio of the internal diameter of high-pressure gas pipe, and the ratio of the internal diameter of low-pressure gas pipe and highly pressurised liquid pipe, middle press liquid pipe and medium pressure gas pipe is between 1.6 ~ 2.5.
During Qe≤3.6kW, low-pressure gas bore is 5.2 ~ 7.8mm, is 6.5 ~ 7.0mm between dominant area; During 3.6kW < Qe≤5.0kW, low-pressure gas bore is 7.0 ~ 9.0mm, is 8.0 ~ 8.6mm between dominant area; During 5.0kW < Qe≤12.0kW, low-pressure gas bore is 8.5 ~ 11.5mm, is 10 ~ 10.6mm between dominant area; During 12kW < Qe≤16kW, low-pressure gas bore is 11 ~ 14.5mm, is 11.5 ~ 12.5mm between dominant area.
During Qe≤3.6kW, gases at high pressure bore is 4.0 ~ 6.5mm, is 4.5 ~ 5.5mm between dominant area; During 3.6kW < Qe≤7.2kW, gases at high pressure bore is 5.5 ~ 7.5mm, is 6.5 ~ 7.2mm between dominant area; During 7.2kW < Qe≤16.0kW, gases at high pressure bore is 7.2 ~ 10mm, is 7.5 ~ 8.5mm between dominant area.
During Qe≤7.2kW, highly pressurised liquid bore is 2.5 ~ 5.0mm, is 3.8 ~ 4.5mm between dominant area; During 7.2kW < Qe≤16.0kW, highly pressurised liquid bore is 4.5 ~ 6.5mm, is 4.8 ~ 5.5mm between dominant area.
During Qe≤7.2kW, middle press liquid bore is 2.5 ~ 5.0mm, is 3.8 ~ 4.5mm between dominant area; During 7.2kW < Qe≤16.0kW, middle press liquid bore is 4.5 ~ 6.5mm, is 4.8 ~ 5.5mm between dominant area.
During Qe≤7.2kW, medium pressure gas bore is 2.5 ~ 5.0mm, is 3.8 ~ 4.5mm between dominant area; During 7.2kW < Qe≤16.0kW, medium pressure gas bore is 4.5 ~ 6.5mm, is 4.8 ~ 5.5mm between dominant area.
During Qe≤5.0kW, low pressure liquid bore is 2.5 ~ 5.0mm, is 3.8 ~ 4.5mm between dominant area; During 5.0kW < Qe≤7.2kW, low pressure liquid bore is 4.5 ~ 6.0mm, is 4.8 ~ 5.5mm between dominant area; During 7.2kW < Qe≤16.0kW, low pressure liquid bore is 5.5 ~ 8.0mm, is 6.5 ~ 7.2mm between dominant area.
Above-described high-pressure gas pipe refers to the general name of the tube connector 1101,1102 that the exhaust outlet of the compressor 1 in outdoor unit 12 is connected with outdoor heat exchanger 2; Low-pressure gas pipe refers to tube connector 801,802 general names that the indoor heat exchanger 3 in indoor unit 13 is connected with compressor 1 air entry of outdoor unit 12; The general name of the tube connector 902 that the first throttle element 401 in the system that highly pressurised liquid pipe refers to the outdoor heat exchanger 2 of outdoor unit 12 and second section fluid element 402 in the system that contains flash evaporation 1401 or contains Intermediate Heat Exchanger 1402 is connected; Middle press liquid pipe refers to the general name of the tube connector 101 that the flash evaporation 1401 of outdoor unit 12 is connected with second section fluid element 402 with first throttle element 401 respectively; Medium pressure gas pipe refers to tube connector 102 general names that tonifying Qi sub-cooling unit 15 is connected with the middle gas supplementing opening of compressor 1; Low pressure liquid pipe refers to the general name of the indoor tube connector 901 that first throttle element 401 is connected with the indoor heat exchanger 3 of indoor unit 13.
Above-mentioned tube connector can be copper pipe, aluminum pipe, copper alloy tube, aluminium-alloy pipe, stainless steel tube, can be also the compound tube of aforementioned any materials, and syntagmatic comprises series, parallel or compound (as copper in aluminium in outer copper or outer aluminium).
When outdoor unit contains four-way change-over valve 5, the S pipe of four-way change-over valve 5 is 1 with the ratio of the internal diameter of E pipe, S pipe is 1 ~ 1.8 with the ratio of the internal diameter of D pipe, S pipe is 1 ~ 1.8 with the ratio of the internal diameter of C pipe, four-way change-over valve 5 valve bodies are 1.8 ~ 2.5 with the ratio of the internal diameter of S pipe, and valve body length is 8 ~ 11 with the ratio of S bore.Within the scope of specified refrigerating capacity Qe=2.0 ~ 16kW, the S pipe of four-way change-over valve is 0.95 ~ 1.05 with the ratio of the internal diameter of low-pressure gas pipe, and four-way change-over valve D pipe is 0.95 ~ 1.05 with the ratio of the internal diameter of high-pressure gas pipe.The material of above-mentioned four-way change valve, D pipe, S pipe, E pipe and C pipe can be the combination of copper alloy, aluminium alloy, stainless steel and previous materials.
As the room air conditioner in the first embodiment, when tonifying Qi sub-cooling unit 15 is comprised of flash evaporation 1401 and second section fluid element 402, when first throttle element 401 is electric expansion valve or heating power expansion valve, the second pipe arrangement of the expansion valve 401 of first throttle element is 1 ~ 1.4 with the ratio of the internal diameter of the first pipe arrangement, and the ratio of the internal diameter of the second pipe arrangement of expansion valve 401 and expansion valve valve port (orifice) is 2.5 ~ 4.Within the scope of specified refrigerating capacity Qe=2.0 ~ 16kW, the second pipe arrangement of expansion valve 401 is 0.95 ~ 1.05 with the ratio of the internal diameter of low pressure liquid pipe, and expansion valve 401 first pipe arrangements are 0.95 ~ 1.05 with the ratio of the internal diameter of middle press liquid pipe.The first pipe arrangement of expansion valve 401 is the pipe arrangements that are directly connected with middle press liquid pipe, and the second pipe arrangement is the pipe arrangement being directly connected with low pressure liquid pipe.
As the room air conditioner in the first embodiment, when tonifying Qi sub-cooling unit 15 is comprised of flash evaporation 1401 and second section fluid element 402, when second section fluid element 402 is electric expansion valve or heating power expansion valve, the second pipe arrangement of the expansion valve 402 of second section fluid element is 1 ~ 1.1 with the ratio of the internal diameter of the first pipe arrangement, and the ratio of the internal diameter of the first pipe arrangement of expansion valve 402 and expansion valve valve port (orifice) is 2.5 ~ 4.Within the scope of specified refrigerating capacity Qe=2.0 ~ 16kW, the first pipe arrangement of expansion valve 402 is 0.95 ~ 1.05 with the ratio of the internal diameter of highly pressurised liquid pipe.Expansion valve the first pipe arrangement is the pipe arrangement being directly connected with highly pressurised liquid pipe, and the second pipe arrangement is the pipe arrangement being directly connected with flash evaporation (1402).
As the room air conditioner in the second embodiment, when tonifying Qi sub-cooling unit 15 is comprised of Intermediate Heat Exchanger 1402 and second section fluid element 402, when first throttle element 401 is electric expansion valve or heating power expansion valve, the second pipe arrangement of the expansion valve 401 of first throttle element is 1 ~ 1.4 with the ratio of the internal diameter of the first pipe arrangement, and the ratio of the internal diameter of the second pipe arrangement of expansion valve 401 and expansion valve valve port (orifice) is 3 ~ 5.Within the scope of specified refrigerating capacity Qe=2.0 ~ 16kW, the second pipe arrangement of expansion valve 401 is 0.95 ~ 1.05 with the ratio of the internal diameter of low pressure liquid pipe, and the first pipe arrangement of expansion valve 401 is 0.95 ~ 1.05 with the ratio of the internal diameter of highly pressurised liquid pipe.Expansion valve 401 first pipe arrangements are the pipe arrangements that are connected with the highly pressurised liquid pipe of process Intermediate Heat Exchanger 1402, and the second pipe arrangement is the pipe arrangement being connected with low pressure liquid pipe.
As the room air conditioner in the second embodiment, when tonifying Qi sub-cooling unit 15 is comprised of Intermediate Heat Exchanger 1402 and second section fluid element 402, when second section fluid element 402 is electric expansion valve or heating power expansion valve, the second pipe arrangement of the expansion valve 402 of second section fluid element is 1 ~ 1.1 with the ratio of the internal diameter of the first pipe arrangement, and the ratio of the internal diameter of the first pipe arrangement of expansion valve 402 and expansion valve valve port (orifice) is 3 ~ 5.Within the scope of specified refrigerating capacity Qe=2.0 ~ 16kW, expansion valve 402 first pipe arrangements are 0.95 ~ 1.05 with the ratio of the internal diameter of highly pressurised liquid pipe.Expansion valve 402 first pipe arrangements are the pipe arrangements that are directly connected with highly pressurised liquid pipe, and the second pipe arrangement is the pipe arrangement being connected with Intermediate Heat Exchanger 1402.
The first pipe arrangement of aforementioned expansion valve and the second pipe arrangement can be copper pipe, aluminum pipe, copper alloy tube, aluminium-alloy pipe, immortal steel pipe, can be also aforementioned any combination pipes.
During specified refrigerating capacity Qe=2.0 ~ 16kW, the heat exchanger tube of indoor heat exchanger 3 is 0.67 ~ 1.5 with the ratio of the expand tube external diameter of the heat exchanger tube of outdoor heat exchanger 2.Indoor heat exchanger 3 expand tube external diameters are 4.15 ~ 7.5mm, are 4.15 ~ 4.3mm, 5.15 ~ 5.35mm, 6.2 ~ 6.35mm, 6.55 ~ 6.75mm and 7.25 ~ 7.5mm between dominant area, or any combination in above-mentioned interval is interval; Outdoor heat exchanger expand tube external diameter is 4.15 ~ 8.5mm, is 4.15 ~ 4.3mm, 5.15 ~ 5.35mm, 6.2 ~ 6.35mm, 6.55 ~ 6.75mm, 7.25 ~ 7.5mm and 8.25 ~ 8.5mm between dominant area, or any combination in above-mentioned interval is interval.Above-mentioned heat exchanger tube can be copper pipe, aluminum pipe, copper alloy tube, aluminium-alloy pipe, immortal steel pipe, can be also the compound tube of aforementioned any materials, and syntagmatic comprises series, parallel or compound (as copper in aluminium in outer copper or outer aluminium).Above-mentioned heat exchanger is fin-tube heat exchanger, the inner enhanced heat transfer surfaces structure of helicla flute or straight trough etc. in addition of above-mentioned heat exchanger tube.
During specified refrigerating capacity Qe=2.0 ~ 16kW, indoor heat exchanger or outdoor heat exchanger can also be micro-channel heat exchangers, micro-channel flat cross section outer rim width * be highly (12 ~ 25mm) * (1 ~ 2mm), between dominant area is (14 ~ 18mm) * (1.2 ~ 1.4mm) and (18 ~ 20mm) * (1.4 ~ 2mm).Above-mentioned micro-channel heat exchanger at least comprises micro-channel flat, Wavelike finned and collector.The dividing wall structure that above-mentioned micro-channel flat has one or more endoporus and separates endoporus, inner hole section is rectangle, circle or triangle etc.The interior hole number of above-mentioned micro-channel flat is 0.5 ~ 1.2/mm with the ratio of above-mentioned micro-channel flat cross section outer rim width.Above-mentioned micro-channel flat is aluminium-alloy pipe.
A kind of embodiment of the tube connector specifications parameter of room air conditioner of the present invention is in Table 3, and corresponding pipeline internal diameter collection of illustrative plates is shown in Fig. 5 and Fig. 6.As a comparison, Fig. 3 and Fig. 4 have provided a kind of R22 room air conditioner pipeline internal diameter collection of illustrative plates of the prior art, and under visible same nominal refrigerating capacity, the pipeline internal diameter of R32 room air conditioner of the present invention significantly reduces.
Specifications parameter under a kind of embodiment of the four-way change-over valve 5 of room air conditioner of the present invention is in Table 4.
The specifications parameter of the first electric expansion valve 401 under room air conditioner the first embodiment of the present invention is in Table 5.
The specifications parameter of the second electric expansion valve 402 under room air conditioner the first embodiment of the present invention is in Table 6.
The specifications parameter of the first electric expansion valve 401 under room air conditioner the second embodiment of the present invention is in Table 7.
The specifications parameter of the second electric expansion valve 402 under room air conditioner the second embodiment of the present invention is in Table 8.
Tube connector specification table under a kind of embodiment of table 3 R32 room air conditioner of the present invention
Four-way change-over valve pipe specification table under a kind of embodiment of table 4 R32 room air conditioner of the present invention
The first electric expansion valve specifications parameter under a kind of embodiment of table 5 R32 room air conditioner of the present invention (shown in accompanying drawing 1)
The second electric expansion valve specifications parameter under a kind of embodiment of table 6 R32 room air conditioner of the present invention (shown in accompanying drawing 1)
The first electric expansion valve specifications parameter under a kind of embodiment of table 7 R32 room air conditioner of the present invention (shown in accompanying drawing 2)
The second electric expansion valve specifications parameter under a kind of embodiment of table 8 R32 room air conditioner of the present invention (shown in accompanying drawing 2)
Heat exchanger specification under a kind of embodiment of table 9 R32 room air conditioner of the present invention
Heat exchanger specification under the another kind of embodiment of table 10 R32 room air conditioner of the present invention
From above description, can find out, the above embodiments of the present invention have realized following technique effect: room air conditioner of the present invention has reduced the size of pipeline, can under existing manufacturing technology level, farthest reduce R32 filling quantity and pipeline raw material use amount, realize the more excellent collocation of R32 room air conditioner parts pipeline size, there is the effect of significantly subduing R32 room air conditioner carbon emission total amount and raw materials consumption.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (23)
1. a room air conditioner, comprise outdoor unit (12), indoor unit (13), connect described indoor unit (13) with outdoor unit (12) to form the tube connector of refrigerant circulation loop and to be arranged on the first throttle element (401) in described tube connector; Described indoor unit comprises indoor heat exchanger (3), and described outdoor unit (12) comprises compressor (1), outdoor heat exchanger (2) and tonifying Qi sub-cooling unit (15); Described tonifying Qi sub-cooling unit (15) comprises second section fluid element (402), also comprises flash evaporation (1401) or Intermediate Heat Exchanger (1402);
Described tube connector comprises: high-pressure gas pipe, connects the exhaust outlet of described compressor (1) and the first end of described outdoor heat exchanger (2); Highly pressurised liquid pipe, in the system that contains flash evaporation (1401), connect the second end of described outdoor heat exchanger (2) and the first end of described second section fluid element (402), or in the system that contains Intermediate Heat Exchanger (1402), connect the second end of described outdoor heat exchanger (2) and the first end of described first throttle element (401); Middle press liquid pipe, the second end that connects described second section fluid element (402) and described flash evaporation (1401) or be connected first end and the described flash evaporation (1401) of described first throttle element (401); Low pressure liquid pipe, connects the second end of described first throttle element (401) and the first end of described indoor heat exchanger (3); Low-pressure gas pipe, connects the second end of described indoor heat exchanger and the air entry of described compressor (1); Medium pressure gas pipe, connects the middle gas supplementing opening of described tonifying Qi sub-cooling unit (15) and described compressor (1);
It is characterized in that, the inside diameter ranges of described low-pressure gas pipe is 5.2 millimeters to 14.5 millimeters;
The inside diameter ranges of described high-pressure gas pipe is 4 millimeters to 10 millimeters;
The inside diameter ranges of described low pressure liquid pipe is 2.5 millimeters to 8 millimeters;
The inside diameter ranges of described highly pressurised liquid pipe is 2.5 millimeters to 6.5 millimeters;
The inside diameter ranges of described middle press liquid pipe is 2.5 millimeters to 6.5 millimeters;
The inside diameter ranges of described medium pressure gas pipe is 2.5 millimeters to 6.5 millimeters.
2. room air conditioner according to claim 1, is characterized in that,
When the specified refrigerating capacity of described room air conditioner is for being less than 3.6 kilowatt hours, the inside diameter ranges of described low-pressure gas pipe is 5.2 millimeters to 7.8 millimeters;
When the specified refrigerating capacity of described room air conditioner be 3.6 kilowatts to 5 kilowatt hours, the inside diameter ranges of described low-pressure gas pipe is 7 millimeters to 9 millimeters;
When the specified refrigerating capacity of described room air conditioner be 5 kilowatts to 12 kilowatt hours, the inside diameter ranges of described low-pressure gas pipe is 8.5 millimeters to 11.5 millimeters;
When the specified refrigerating capacity of described room air conditioner be 12 kilowatts to 16 kilowatt hours, the inside diameter ranges of described low-pressure gas pipe is 11 millimeters to 14.5 millimeters.
3. room air conditioner according to claim 2, is characterized in that,
When the specified refrigerating capacity of described room air conditioner is for being less than 3.6 kilowatt hours, the inside diameter ranges of described low-pressure gas pipe is 6.5 millimeters to 7 millimeters;
When the specified refrigerating capacity of described room air conditioner be 3.6 kilowatts to 5 kilowatt hours, the inside diameter ranges of described low-pressure gas pipe is 8 millimeters to 8.6 millimeters;
When the specified refrigerating capacity of described room air conditioner be 5 kilowatts to 12 kilowatt hours, the inside diameter ranges of described low-pressure gas pipe is 10 millimeters to 10.6 millimeters;
When the specified refrigerating capacity of described room air conditioner be 12 kilowatts to 16 kilowatt hours, the inside diameter ranges of described low-pressure gas pipe is 11.5 millimeters to 12.5 millimeters.
4. room air conditioner according to claim 1, is characterized in that,
When the specified refrigerating capacity of described room air conditioner is for being less than 3.6 kilowatt hours, the inside diameter ranges of described high-pressure gas pipe is 4 millimeters to 6.5 millimeters;
When the specified refrigerating capacity of described room air conditioner be 3.6 kilowatts to 7.2 kilowatt hours, the inside diameter ranges of described high-pressure gas pipe is 5.5 millimeters to 7.5 millimeters;
When the specified refrigerating capacity of described room air conditioner be 7.2 kilowatts to 16 kilowatt hours, the inside diameter ranges of described high-pressure gas pipe is 7.2 millimeters to 10 millimeters.
5. room air conditioner according to claim 4, is characterized in that,
When the specified refrigerating capacity of described room air conditioner is for being less than 3.6 kilowatt hours, the inside diameter ranges of described high-pressure gas pipe is 4.5 millimeters to 5.5 millimeters;
When the specified refrigerating capacity of described room air conditioner be 3.6 kilowatts to 7.2 kilowatt hours, the inside diameter ranges of described high-pressure gas pipe is 6.5 millimeters to 7.2 millimeters;
When the specified refrigerating capacity of described room air conditioner be 7.2 kilowatts to 16 kilowatt hours, the inside diameter ranges of described high-pressure gas pipe is 7.5 millimeters to 8.5 millimeters.
6. room air conditioner according to claim 1, is characterized in that,
When the specified refrigerating capacity of described room air conditioner is for being less than 7.2 kilowatt hours, the inside diameter ranges of described highly pressurised liquid pipe, described middle press liquid pipe and described medium pressure gas pipe is 2.5 millimeters to 5 millimeters;
When the specified refrigerating capacity of described room air conditioner be 7.2 kilowatts to 16 kilowatt hours, the inside diameter ranges of described highly pressurised liquid pipe, described middle press liquid pipe and described medium pressure gas pipe is 4.5 millimeters to 6.5 millimeters.
7. room air conditioner according to claim 6, is characterized in that,
When the specified refrigerating capacity of described room air conditioner is for being less than 7.2 kilowatt hours, the inside diameter ranges of described highly pressurised liquid pipe, described middle press liquid pipe and described medium pressure gas pipe is 3.8 millimeters to 4.5 millimeters;
When the specified refrigerating capacity of described room air conditioner be 7.2 kilowatts to 16 kilowatt hours, the inside diameter ranges of described highly pressurised liquid pipe, described middle press liquid pipe and described medium pressure gas pipe is 4.8 millimeters to 5.5 millimeters.
8. room air conditioner according to claim 1, is characterized in that,
When the specified refrigerating capacity of described room air conditioner is for being less than 5 kilowatt hours, the inside diameter ranges of described low pressure liquid pipe is 2.5 millimeters to 5 millimeters;
When the specified refrigerating capacity of described room air conditioner be 5 kilowatts to 7.2 kilowatt hours, the inside diameter ranges of described low pressure liquid pipe is 4.5 millimeters to 6 millimeters;
When the specified refrigerating capacity of described room air conditioner be 7.2 kilowatts to 16 kilowatt hours, the inside diameter ranges of described low pressure liquid pipe is 5.5 millimeters to 8 millimeters.
9. room air conditioner according to claim 8, is characterized in that,
When the specified refrigerating capacity of described room air conditioner is for being less than 5 kilowatt hours, the inside diameter ranges of described low pressure liquid pipe is 3.8 millimeters to 4.5 millimeters;
When the specified refrigerating capacity of described room air conditioner be 5 kilowatts to 7.2 kilowatt hours, the inside diameter ranges of described low pressure liquid pipe is 4.8 millimeters to 5.5 millimeters;
When the specified refrigerating capacity of described room air conditioner be 7.2 kilowatts to 16 kilowatt hours, the inside diameter ranges of described low pressure liquid pipe is 6.5 millimeters to 7.2 millimeters.
10. room air conditioner according to claim 1, it is characterized in that, described tonifying Qi sub-cooling unit (15) is comprised of described flash evaporation (1401) and described second section fluid element (402), described first throttle element (401) is electric expansion valve or heating power expansion valve, described first throttle element (401) has the second pipe arrangement being connected with described low pressure liquid pipe and the first pipe arrangement being connected with described middle press liquid pipe, described the second pipe arrangement is 1 ~ 1.4 with the ratio of the internal diameter of described the first pipe arrangement, the ratio of the internal diameter of the valve port of described the second pipe arrangement and described first throttle element (401) is 2.5 ~ 4, described the second pipe arrangement is 0.95 ~ 1.05 with the ratio of the internal diameter of described low pressure liquid pipe, described the first pipe arrangement is 0.95 ~ 1.05 with the ratio of the internal diameter of described middle press liquid pipe.
11. room air conditioners according to claim 1, it is characterized in that, described tonifying Qi sub-cooling unit (15) is comprised of described flash evaporation (1401) and described second section fluid element (402), described second section fluid element (402) is electric expansion valve or heating power expansion valve, described second section fluid element (402) has the second pipe arrangement being connected with described middle press liquid pipe and the first pipe arrangement being connected with described highly pressurised liquid pipe, described the second pipe arrangement is 1 ~ 1.1 with the ratio of the internal diameter of described the first pipe arrangement, the ratio of the internal diameter of the valve port of described the first pipe arrangement and described second section fluid element (402) is 2.5 ~ 4, described the first pipe arrangement is 0.95 ~ 1.05 with the ratio of the internal diameter of described highly pressurised liquid pipe.
12. room air conditioners according to claim 1, it is characterized in that, described tonifying Qi sub-cooling unit (15) is comprised of described Intermediate Heat Exchanger (1402) and described second section fluid element (402), described first throttle element (401) is electric expansion valve or heating power expansion valve, described first throttle element (401) has the first pipe arrangement that the second pipe arrangement of being connected with described low pressure liquid pipe is connected with highly pressurised liquid pipe with the described Intermediate Heat Exchanger of described process (1402), described the second pipe arrangement is 1 ~ 1.4 with the ratio of the internal diameter of described the first pipe arrangement, the ratio of the internal diameter of the valve port of described the second pipe arrangement and described first throttle element (401) is 3 ~ 5, described the second pipe arrangement is 0.95 ~ 1.05 with the ratio of the internal diameter of described low pressure liquid pipe, described the first pipe arrangement is 0.95 ~ 1.05 with the ratio of the internal diameter of described highly pressurised liquid pipe.
13. room air conditioners according to claim 1, it is characterized in that, described tonifying Qi sub-cooling unit (15) is comprised of described Intermediate Heat Exchanger (1402) and described second section fluid element (402), described second section fluid element (402) is electric expansion valve or heating power expansion valve, described second section fluid element (402) has the second pipe arrangement being connected with described Intermediate Heat Exchanger (1402) and the first pipe arrangement being connected with described highly pressurised liquid pipe, described the second pipe arrangement is 1 ~ 1.1 with the ratio of the internal diameter of described the first pipe arrangement, the ratio of the internal diameter of the valve port of described the first pipe arrangement and described second section fluid element (402) is 3 ~ 5, described the first pipe arrangement is 0.95 ~ 1.05 with the ratio of the internal diameter of described highly pressurised liquid pipe.
14. room air conditioners according to claim 1, is characterized in that, the ratio of the expand tube external diameter of the heat exchanger tube of the heat exchanger tube of described indoor heat exchanger (3) and described outdoor heat exchanger (2) is 0.67 ~ 1.5.
15. room air conditioners according to claim 14, is characterized in that, the expand tube external diameter of described indoor heat exchanger (3) heat exchanger tube is that scope is 4.15 millimeters to 7.5 millimeters.
16. room air conditioners according to claim 15, it is characterized in that, described indoor heat exchanger (3) comprises one or more heat exchanger tubes, and the expand tube external diameter scope of described heat exchanger tube is the combination of 4.15 millimeters to 4.3 millimeters, 5.15 millimeters to 5.35 millimeters, 6.2 millimeters to 6.35 millimeters, 6.55 millimeters to 6.75 millimeters, 7.25 millimeters to 7.5 millimeters or above number range.
17. room air conditioners according to claim 14, is characterized in that, the expand tube external diameter of described outdoor heat exchanger (2) heat exchanger tube is that scope is 4.15 millimeters to 8.5 millimeters.
18. room air conditioners according to claim 17, it is characterized in that, described outdoor heat exchanger (2) comprises one or more heat exchanger tubes, and the expand tube external diameter scope of described one or more heat exchanger tubes is the combination of 4.15 millimeters to 4.3 millimeters, 5.15 millimeters to 5.35 millimeters, 6.2 millimeters to 6.35 millimeters, 6.55 millimeters to 6.75 millimeters, 7.25 millimeters to 7.5 millimeters, 8.25 to 8.5 millimeters or above number range.
19. room air conditioners according to claim 1, it is characterized in that, described indoor heat exchanger (3) or described outdoor heat exchanger (2) are micro-channel heat exchanger, the flat tube cross section outer rim width of described micro-channel heat exchanger is 12 millimeters to 25 millimeters, be highly 1 millimeter to 2 millimeters, hole count is 0.5 to 1.2/millimeter with the ratio of width.
20. room air conditioners according to claim 19, is characterized in that, the number range of the flat tube cross section outer rim of described micro-channel heat exchanger is that width is 14 millimeters to 18 millimeters, is highly 1.2 millimeters to 1.4 millimeters; Or width is 18 to 20 millimeters, it is highly 1.4 millimeters to 2 millimeters.
21. room air conditioners according to claim 1, it is characterized in that, described outdoor unit (12) can also comprise exhaust outlet and the air entry that connects respectively described compressor (1), the four-way change-over valve of described outdoor heat exchanger (2) and described indoor heat exchanger (3), the S pipe that described four-way change-over valve connects the air entry of described compressor (1) is 1 with the ratio of internal diameter that is connected the E pipe of described indoor heat exchanger (3), described S pipe is 1 ~ 1.8 with the ratio of internal diameter of D pipe that is connected the exhaust outlet of described compressor (1), described S pipe is 1 ~ 1.8 with the ratio of internal diameter that is connected the C pipe of described outdoor heat exchanger (2), the main valve body of described four-way change-over valve is 1.8 ~ 2.5 with the ratio of the internal diameter of described S pipe, the length of described main valve body is 8 ~ 11 with the ratio of described S bore, described S pipe is 0.95 ~ 1.05 with the ratio of the internal diameter of described low-pressure gas pipe, described D pipe is 0.95 ~ 1.05 with the ratio of the internal diameter of described high-pressure gas pipe.
22. room air conditioners according to claim 1, it is characterized in that, described low-pressure gas pipe is 1.5 ~ 2.1 with the ratio of the internal diameter of described low pressure liquid pipe, described low-pressure gas pipe is 1.1 ~ 1.6 with the ratio of the internal diameter of described high-pressure gas pipe, and the ratio of the internal diameter of described low-pressure gas pipe and described highly pressurised liquid pipe, described middle press liquid pipe or described medium pressure gas pipe is between 1.6 ~ 2.5.
23. according to the room air conditioner described in any one in claim 1 to 22, it is characterized in that, described room air conditioner uses the mix refrigerant of R32 cold-producing medium or R32 and R1234yf or R1234ze, and in described mix refrigerant, the mass ratio of R32 is more than 50%.
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| CN201210238179.5A CN103542566B (en) | 2012-07-10 | 2012-07-10 | Room air conditioner |
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| CN201210238179.5A CN103542566B (en) | 2012-07-10 | 2012-07-10 | Room air conditioner |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060065033A (en) * | 2004-12-09 | 2006-06-14 | 주식회사 대우일렉트로닉스 | Air conditioner improved condensing efficiency |
| CN201025417Y (en) * | 2007-01-25 | 2008-02-20 | 广州万宝集团有限公司 | An air-conditioning thermal pump device applicable to operation under low-temperature environment |
| CN201297796Y (en) * | 2008-11-03 | 2009-08-26 | 珠海格力电器股份有限公司 | High-efficiency enhanced vapor injection type air conditioner |
| CN201331210Y (en) * | 2008-12-31 | 2009-10-21 | 张茂勇 | Low-temperature air source heat pump hot water air conditioner device with flash type storing and separating device |
| CN202675717U (en) * | 2012-07-10 | 2013-01-16 | 珠海格力电器股份有限公司 | Room air conditioner |
-
2012
- 2012-07-10 CN CN201210238179.5A patent/CN103542566B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060065033A (en) * | 2004-12-09 | 2006-06-14 | 주식회사 대우일렉트로닉스 | Air conditioner improved condensing efficiency |
| CN201025417Y (en) * | 2007-01-25 | 2008-02-20 | 广州万宝集团有限公司 | An air-conditioning thermal pump device applicable to operation under low-temperature environment |
| CN201297796Y (en) * | 2008-11-03 | 2009-08-26 | 珠海格力电器股份有限公司 | High-efficiency enhanced vapor injection type air conditioner |
| CN201331210Y (en) * | 2008-12-31 | 2009-10-21 | 张茂勇 | Low-temperature air source heat pump hot water air conditioner device with flash type storing and separating device |
| CN202675717U (en) * | 2012-07-10 | 2013-01-16 | 珠海格力电器股份有限公司 | Room air conditioner |
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