CN202675718U - Room air conditioner - Google Patents
Room air conditioner Download PDFInfo
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- CN202675718U CN202675718U CN 201220333406 CN201220333406U CN202675718U CN 202675718 U CN202675718 U CN 202675718U CN 201220333406 CN201220333406 CN 201220333406 CN 201220333406 U CN201220333406 U CN 201220333406U CN 202675718 U CN202675718 U CN 202675718U
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- 239000007788 liquid Substances 0.000 claims abstract description 62
- 239000003507 refrigerant Substances 0.000 claims abstract description 17
- 238000010438 heat treatment Methods 0.000 claims description 4
- 230000007613 environmental effect Effects 0.000 abstract description 6
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 45
- 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
- 150000001875 compounds Chemical class 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
- RWRIWBAIICGTTQ-UHFFFAOYSA-N anhydrous difluoromethane Natural products FCF RWRIWBAIICGTTQ-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000009189 diving Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005549 size reduction Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
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- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The utility model provides a room air conditioner, which comprises an outdoor unit, an indoor unit, a connecting pipe for connecting the indoor unit and the outdoor unit to form a refrigerant circulating loop, and a throttling element arranged in the connecting pipe; the indoor unit comprises an indoor heat exchanger, and the outdoor unit comprises a compressor and an outdoor heat exchanger; the connecting pipe includes: a high pressure gas pipe; a high pressure liquid pipe; a low-pressure liquid pipe; a low pressure gas pipe; the inner diameter of the low-pressure gas pipe ranges from 5.5 mm to 14.5 mm; the inner diameter of the high-pressure gas pipe ranges from 4 mm to 10 mm; the inner diameter of the low-pressure liquid pipe ranges from 3 mm to 8.5 mm; the high pressure liquid tube has an inner diameter in the range of 2.5 mm to 6.5 mm. Use the technical scheme of the utility model room air conditioner can reduce the size of room air conditioner pipeline and two heat exchange tubes etc. promotes room air conditioner's energy-conservation and environmental protection level. Furthermore, the use amount of the refrigerant can be reduced, and the refrigerant is suitable for application of environment-friendly refrigerants.
Description
Technical field
The utility model relates to the air-conditioner field, 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 greenhouse effects of the cold-producing medium that room air conditioner uses at present such as 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 to become the environmental issue that industry and government pay close attention to.Adopt the alternative R22 of low GWP cold-producing medium 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, has 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 for cutting down the consumption of raw materials with improve the air-conditioner cost performance, for environmental protection refrigerant again optimal design and reduce the room air conditioner pipeline and the size tool of two device heat exchanger tubes etc. is of great significance.
The utility model content
The utility model aims to provide a kind of room air conditioner, and is large and use the high technical problem of risk safely to solve room air conditioner of the prior art filling quantity when using the low temperature chamber effect to dive value cold-producing medium.
To achieve these goals, according to an aspect of the present utility model, 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, is arranged on the restricting element in the tube connector; Indoor unit comprises indoor heat exchanger, and outdoor unit comprises compressor and outdoor heat exchanger; Tube connector comprises: high-pressure gas pipe connects the exhaust outlet of compressor and the first end of outdoor heat exchanger; The highly pressurised liquid pipe, the second end of junction chamber external heat exchanger and the first end of restricting element; The low pressure liquid pipe, the second end of connecting joint fluid 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; The inside diameter ranges of low-pressure gas pipe is 5.5 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 3 millimeters to 8.5 millimeters; The inside diameter ranges of highly pressurised liquid pipe is 2.5 millimeters to 6.5 millimeters.
Further, the specified refrigerating capacity of room air conditioner is less than 3.3 kilowatts, and the inside diameter ranges of low-pressure gas pipe is 5.5 millimeters to 7.5 millimeters.
Further, the inside diameter ranges of low-pressure gas pipe is 6.5 millimeters to 7 millimeters.
Further, the specified refrigerating capacity of room air conditioner is between 3.3 kilowatts to 5 kilowatts, and the inside diameter ranges of low-pressure gas pipe is 7 millimeters to 9 millimeters.
Further, the inside diameter ranges of low-pressure gas pipe is 8 millimeters to 8.6 millimeters.
Further, the specified refrigerating capacity of room air conditioner is between 5 kilowatts to 10 kilowatts, and the inside diameter ranges of low-pressure gas pipe is 8.5 millimeters to 11 millimeters.
Further, the inside diameter ranges of low-pressure gas pipe is 10 millimeters to 10.6 millimeters.
Further, the specified refrigerating capacity of room air conditioner is between 10 kilowatts to 16 kilowatts, and the inside diameter ranges of low-pressure gas pipe is 11 millimeters to 14.5 millimeters.
Further, the inside diameter ranges of low-pressure gas pipe is 11.5 millimeters to 12.5 millimeters.
Further, the specified refrigerating capacity of room air conditioner is less than 3.6 kilowatts, and the inside diameter ranges of high-pressure gas pipe is 4.0 millimeters to 6.5 millimeters, and the inside diameter ranges of highly pressurised liquid pipe is 2.5 millimeters to 5 millimeters, and the inside diameter ranges of low pressure liquid pipe is 3 millimeters to 5 millimeters.
Further, the inside diameter ranges of high-pressure gas pipe is 4.5 millimeters to 5.5 millimeters, and the inside diameter ranges of highly pressurised liquid pipe is 3.8 millimeters to 4.5 millimeters, and the inside diameter ranges of low pressure liquid pipe is 3.8 millimeters to 4.5 millimeters.
Further, the specified refrigerating capacity of room air conditioner is between 3.6 kilowatts to 7.2 kilowatts, the inside diameter ranges of high-pressure gas pipe is 5.5 millimeters to 7.5 millimeters, and the inside diameter ranges of highly pressurised liquid pipe is 2.5 millimeters to 5 millimeters, and the inside diameter ranges of low pressure liquid pipe is 4.5 millimeters to 6.5 millimeters.
Further, the inside diameter ranges of high-pressure gas pipe is 6.5 millimeters to 7.2 millimeters, and the inside diameter ranges of highly pressurised liquid pipe is 3.8 millimeters to 4.5 millimeters, and the inside diameter ranges of low pressure liquid pipe is 4.8 millimeters to 5.5 millimeters.
Further, the specified refrigerating capacity of room air conditioner is between 7.2 kilowatts to 16 kilowatts, the inside diameter ranges of high-pressure gas pipe is 7.2 millimeters to 10 millimeters, and the inside diameter ranges of highly pressurised liquid pipe is 4.5 millimeters to 6.5 millimeters, and the inside diameter ranges of low pressure liquid pipe is 5.5 millimeters to 8.5 millimeters.
Further, the inside diameter ranges of high-pressure gas pipe is 7.5 millimeters to 8.5 millimeters, and the inside diameter ranges of highly pressurised liquid pipe is 4.8 millimeters to 5.5 millimeters, and the inside diameter ranges of low pressure liquid pipe is 6.5 millimeters to 7.2 millimeters.
Further, outdoor unit also comprises 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 of the air entry of four-way change-over valve connection compressor is 1 with the ratio of the internal diameter of the E pipe that is connected indoor heat exchanger, the S pipe is 1～1.8 with the ratio of the internal diameter of the D pipe of the exhaust outlet that is connected compressor, the 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, the ratio of S pipe and the internal diameter of low-pressure gas pipe is 0.95～1.05, D pipe with the ratio of the internal diameter of high-pressure gas pipe is 0.95～1.05.
Further, restricting element is electric expansion valve or heating power expansion valve, the second pipe arrangement of the second end of restricting element is 1～1.4 with the ratio of the internal diameter of the first pipe arrangement of first end, the second pipe arrangement of restricting element is 3～5 with the ratio of the internal diameter of the valve port of restricting element, the ratio of the second pipe arrangement and the internal diameter of low pressure liquid pipe is the 0.95～1.05, first pipe arrangement with the ratio of the internal diameter of highly pressurised liquid pipe is 0.95～1.05.
Further, the heat exchanger tube of indoor heat exchanger is 0.67～1.5 with the ratio of the expand tube external diameter of the heat exchanger tube of outdoor heat exchanger.
Further, the expand tube external diameter scope of indoor heat exchanger is 4.15 millimeters to 7.5 millimeters.
Further, indoor heat exchanger comprises that expand tube external diameter scope is the heat exchanger tube of the combination of 4.15 millimeters to 4.3 millimeters or 5.15 millimeters to 5.35 millimeters or 6.2 millimeters to 6.35 millimeters or 6.55 millimeters to 6.75 millimeters or 7.25 millimeters to 7.5 millimeters or above number range.
Further, the expand tube external diameter scope of outdoor heat exchanger is 4.15 millimeters to 8.5 millimeters.
Further, outdoor heat exchanger comprises that expand tube external diameter scope is the heat exchanger tube of the combination of 4.15 millimeters to 4.3 millimeters or 5.15 millimeters to 5.35 millimeters or 6.2 millimeters to 6.35 millimeters or 6.55 millimeters to 6.75 millimeters or 7.25 millimeters to 7.5 millimeters or 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, highly is 1 millimeter to 2 millimeters, and hole count is 0.5 to 1.2/millimeter with the ratio of width.
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 14 millimeters to 18 millimeters or 18 to 20 millimeters, highly are 1.2 millimeters to 1.4 millimeters or 1.4 millimeters to 2 millimeters.
Further, low-pressure gas pipe is 1.5～2.1 with the ratio of the internal diameter of low pressure liquid pipe, and low-pressure gas pipe is 1.1～1.7 with the ratio of the internal diameter of high-pressure gas pipe, and low-pressure gas pipe is 1.6～2.5 with the ratio of the internal diameter of highly pressurised liquid pipe.
Further, room air conditioner uses the mix refrigerant of R32 cold-producing medium or R32 and R1234yf or R1234ze, and the mass ratio of R32 is more than 50% in the mix refrigerant.
The room air conditioner of using the technical solution of the utility model is reduced the size of room air conditioner pipeline and two device heat exchanger tubes etc., promotes the energy-conservation and Environmental Protection Level of room air conditioner.Further, can reduce cold-producing medium use amount and adapt to the application of environmental protection refrigerant.
Description of drawings
The Figure of description that consists of the application's a part is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not consist of improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 shows the system diagram of the first embodiment of room air conditioner of the present utility model;
Fig. 2 shows the system diagram of the second embodiment of room air conditioner of the present utility model;
The dimensional drawing that pipeline internal diameter when the room air conditioner that Fig. 3 shows prior art uses the 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 the 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 utility model 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 utility model increases with specified refrigerating capacity.
The specific embodiment
Need to prove, in the situation that do not conflict, embodiment and the feature among the embodiment among the application can make up mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.
Referring to Fig. 1, the first embodiment of room air conditioner of the present utility model by outdoor unit 12 with is connected an indoor unit 1301 and connect indoor unit 1301 and form with the first tube connector 801 and the second tube connector 901 that forms refrigerant circulation loop with outdoor unit 12.Wherein indoor unit comprises an indoor heat exchanger 301.Outdoor unit 12 comprises compressor 1 and outdoor heat exchanger 2 etc.Comprise the restricting element 401 that is arranged in the connecting line in indoor unit 1301 or the outdoor unit 12, be provided with liquid stop valve 601 in the outdoor unit 12, gas stop valve 602, gas-liquid separator 7 is connected to the parts such as four-way change-over valve 5 between compressor 1, outdoor heat exchanger 2, gas-liquid separator 7 and the gas stop valve 602.Restricting element 401 can be electric expansion valve, heating power expansion valve, restriction sleeve and capillary, also can be the combination of aforementioned any element.Indoor heat exchanger 301 and outdoor heat exchanger 2 can be finned tube exchanger or micro-channel heat exchanger.Compressor 1 can be rotor compressor or screw compressor; Compressor 1 can be constant speed compressor or speed variable compressor.The cold-producing medium that fills in the room air conditioner can or contain the above HFC32 of 50% (mass ratio) and the mix refrigerant of HFO1234yf (tetrafluoeopropene) or HFO1234ze (tetrafluoeopropene) for HFC32 (difluoromethane).
Referring to Fig. 2, the second embodiment of room air conditioner of the present utility model is with respect to the change of the first embodiment, has increased by second indoor unit 1302 and be used for being installed in second room outside the first indoor unit 1301.The first indoor heat exchanger 301 and the second indoor heat exchanger 302 are set respectively in two indoor units.Comprise in the first indoor unit 1301 in first throttle element 401, the second indoor unit 1302 and comprise second section fluid element 402.
Except two embodiment that illustrate, room air conditioner of the present utility model 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 the thermodynamic cycle theory analysis (calculate with analyze operating mode and the result who draws see Table respectively 1 and table 2) show, the unit mass refrigerating capacity of R32 all exceeds more than 50% than R22 and R410A, the R32 mass flow significantly reduces under the equal refrigerating capacity, 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 the space.The R32 volume refrigerating capacity compressor exceeds approximately 57% and 9% than R22 and R410A respectively, and the relative R22 of R32 compressor displacement will significantly reduce under the equal refrigerating capacity, 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 | |
| The quality refrigerating capacity | kJ/kg | 165.3 | 167.7 | 252.1 |
| Volume refrigerating capacity compressor | kJ/m3 | 4254 | 6147 | 6691 |
| The blast pipe pressure drop | kPa | 20.18 | 31.71 | 32.66 |
| The condenser pressure drop | kPa | 39.83 | 55.53 | 64.43 |
| The evaporimeter pressure drop | kPa | 63.61 | 102.5 | 102 |
| The 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 will reducing effective heat transfer temperature difference of heat exchanger, the saturated temperature drop that flow pressure drop causes in condenser or the evaporimeter reduces exchange capability of heat.As seen from Table 2, under the identical saturated temperature drop, use the condenser of R32 and the pressure drop that the evaporimeter pressure drop all is significantly higher than the like product that uses R22, that is under the 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 such as parts such as restricting element and valve classes.
Thus, the utility model has reduced the size of the parts such as pipeline, heat exchanger and restricting element of room air conditioner, and the utility model 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, and low-pressure gas pipe is 1.1～1.7 with the ratio of the internal diameter of high-pressure gas pipe, and low-pressure gas pipe is 1.6～2.5 with the ratio of the internal diameter of highly pressurised liquid pipe.
During Qe≤3.3kW, the low-pressure gas bore is 5.5～7.5mm, is 6.5～7.0mm between dominant area.3.3kW during＜Qe≤5.0kW, the low-pressure gas bore is 7.0～9.0mm, is 8.0～8.6mm between dominant area.5.0kW during＜Qe≤10.0kW, the low-pressure gas bore is 8.5～11mm, is 10～10.6mm between dominant area.During 10kW＜Qe≤16kW, the low-pressure gas bore is 11～14.5mm, is 11.5～12.5mm between dominant area.
During Qe≤3.6kW, the gases at high pressure bore is 4.0～6.5mm, is 4.5～5.5mm between dominant area; 3.6kW during＜Qe≤7.2kW, the gases at high pressure bore is 5.5～7.5mm, is 6.5～7.2mm between dominant area; 7.2kW during＜Qe≤16.0kW, the gases at high pressure bore is 7.2～10mm, is 7.5～8.5mm between dominant area.
During Qe≤7.2kW, the highly pressurised liquid bore is 2.5～5.0mm, is 3.8～4.5mm between dominant area; 7.2kW during＜Qe≤16.0kW, the highly pressurised liquid bore is 4.5～6.5mm, is 4.8～5.5mm between dominant area.
During Qe≤3.6kW, the low pressure liquid bore is 3.0～5.0mm, is 3.8～4.5mm between dominant area; 3.6kW during＜Qe≤7.2kW, the low pressure liquid bore is 4.5～6.5mm, is 4.8～5.5mm between dominant area; 7.2kW during＜Qe≤16.0kW, the low pressure liquid bore is 5.5～8.5mm, is 6.5～7.2mm between dominant area.
Above-described high-pressure gas pipe refers to the tube connector 1101 that the exhaust outlet of the compressor 1 in the outdoor unit 12 is connected with outdoor heat exchanger 2,1102 general name; Low-pressure gas pipe refers to indoor heat exchanger 301,302 tube connector 801,802 general names that are connected with compressor 1 air entry of outdoor unit 12 in the indoor unit 1301,1302; The highly pressurised liquid pipe refers to the general name (being to be tube connector 901,902 among tube connector 902, the second embodiment among the first embodiment) of outdoor heat exchanger 2 with main restricting element 401,402 tube connectors that are connected of outdoor unit 12; The tube connector that low pressure liquid Guan Zhizhu restricting element 401,402 and indoor unit 1301,1302 indoor heat exchanger 301,302 are connected (among the first embodiment for being tube connector 1001,1002 among tube connector 901, the second embodiment) general name.
Above-mentioned tube connector can be copper pipe, aluminum pipe, copper alloy tube, aluminium-alloy pipe, stainless steel tube, also can be the compound tube of aforementioned any materials, and syntagmatic comprises series, parallel or compound (such as copper in aluminium in the outer copper or the 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, the S pipe is 1～1.8 with the ratio of the internal diameter of D pipe, the S pipe is 1～1.8 with the ratio of the internal diameter of C pipe, four-way change-over valve 5 main valve bodies are 1.8～2.5 with the ratio of the internal diameter of S pipe, and main valve body length is 8～11 with the ratio of S bore.In specified refrigerating capacity Qe=2.0～16kW scope, 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 main valve of four-way reversing valve body, D pipe, S pipe, E pipe and C pipe can be the combination of copper alloy, aluminium alloy, stainless steel and previous materials.
When restricting element 401,402 was electric expansion valve or heating power expansion valve, the second pipe arrangement of expansion valve was 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 and expansion valve valve port (orifice) is 3～5.In specified refrigerating capacity Qe=2.0～16kW scope, expansion valve the second pipe arrangement is 0.95～1.05 with the ratio of the internal diameter of low pressure liquid pipe, and expansion valve the first pipe arrangement is 0.95～1.05 with the ratio of the internal diameter of highly pressurised liquid pipe.Above-mentioned expansion valve the first pipe arrangement is the pipe arrangement that directly links to each other with the highly pressurised liquid pipe, and the second pipe arrangement is the pipe arrangement that directly links to each other with the low pressure liquid pipe.Above-mentioned expansion valve the first pipe arrangement and the second pipe arrangement can be copper pipe, aluminum pipe, copper alloy tube, aluminium-alloy pipe, stainless steel tube, also can be the compound tubes of aforementioned any materials.
During specified refrigerating capacity Qe=2.0～16kW, indoor heat exchanger 301,302 heat exchanger tube are 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 expand tube external diameter is 4.15～7.5mm, is 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, also can be the compound tube of aforementioned any materials, and syntagmatic comprises series, parallel or compound (such as copper in aluminium in the outer copper or the outer aluminium).Above-mentioned heat exchanger is fin-tube heat exchanger, the inner enhanced heat transfer surfaces structures such as in addition helicla flute or straight trough etc. 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 * highly be (12～25mm) * (1～2mm), be (14～18mm) * (1.2～1.4mm) and (18～20mm) * (1.4～2mm) between dominant area.Above-mentioned micro-channel heat exchanger comprises micro-channel flat, Wavelike finned and collector at least.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.
Low-pressure gas pipe is 1.5～2.1 with the ratio of the internal diameter of low pressure liquid pipe, and low-pressure gas pipe is 1.1～1.7 with the ratio of the internal diameter of high-pressure gas pipe, and low-pressure gas pipe is 1.6～2.5 with the ratio of the internal diameter of highly pressurised liquid pipe.
A kind of embodiment of the tube connector specifications parameter of the utility model room air conditioner sees Table 3, and corresponding pipeline internal diameter collection of illustrative plates is seen 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 the pipeline internal diameter of R32 room air conditioner of the present utility model significantly reduces under the visible same nominal refrigerating capacity.
Specifications parameter under 5 one kinds of embodiment of the four-way change-over valve of the utility model room air conditioner sees Table 4.
Specifications parameter under the electric expansion valve 401 of the utility model room air conditioner, the 402 a kind of embodiment sees Table 5.
Indoor heat exchanger 301 under a kind of embodiment of the utility model room air conditioner, 302 and outdoor heat exchanger 2 be fin-tube heat exchanger, heat exchanger tube expand tube external diameter sees Table 6.
Indoor heat exchanger 301,302 under the another kind of embodiment of the utility model room air conditioner is fin-tube heat exchanger, and outdoor heat exchanger 2 is micro-channel heat exchanger, and the specification under a kind of embodiment of heat exchanger tube sees Table 7.
Tube connector specification table under a kind of embodiment of table 3 the utility model R32 room air conditioner
Four-way change-over valve pipe specification table under a kind of embodiment of table 4 the utility model R32 room air conditioner
Electric expansion valve specifications parameter under a kind of embodiment of table 5 the utility model R32 room air conditioner
Heat exchanger specification under a kind of embodiment of table 6 the utility model R32 room air conditioner
Heat exchanger specification under the another kind of embodiment of table 7 the utility model R32 room air conditioner
From above description, can find out, the utility model the above embodiments have realized following technique effect: room air conditioner of the present utility model 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, have the effect of significantly subduing R32 room air conditioner carbon emission total amount and raw materials consumption.
The above is preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (26)
1. a room air conditioner comprises outdoor unit (12), and indoor unit connects described indoor unit and outdoor unit (12) to form the tube connector of refrigerant circulation loop, is arranged on the restricting element in the described tube connector; Described indoor unit comprises indoor heat exchanger, and described outdoor unit (12) comprises compressor (1) and outdoor heat exchanger (2);
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); The highly pressurised liquid pipe connects the second end of described outdoor heat exchanger (2) and the first end of described restricting element; The low pressure liquid pipe connects the second end of described restricting element and the first end of described indoor heat exchanger; Low-pressure gas pipe connects the second end of described indoor heat exchanger and the air entry of described compressor (1);
It is characterized in that, the inside diameter ranges of described low-pressure gas pipe is 5.5 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 3 millimeters to 8.5 millimeters;
The inside diameter ranges of described highly pressurised liquid pipe is 2.5 millimeters to 6.5 millimeters.
2. room air conditioner according to claim 1 is characterized in that, the specified refrigerating capacity of described room air conditioner is less than 3.3 kilowatts, and the inside diameter ranges of described low-pressure gas pipe is 5.5 millimeters to 7.5 millimeters.
3. room air conditioner according to claim 2 is characterized in that, the inside diameter ranges of described low-pressure gas pipe is 6.5 millimeters to 7 millimeters.
4. room air conditioner according to claim 1 is characterized in that, the specified refrigerating capacity of described room air conditioner is between 3.3 kilowatts to 5 kilowatts, and the inside diameter ranges of described low-pressure gas pipe is 7 millimeters to 9 millimeters.
5. room air conditioner according to claim 4 is characterized in that, the inside diameter ranges of described low-pressure gas pipe is 8 millimeters to 8.6 millimeters.
6. room air conditioner according to claim 1 is characterized in that, the specified refrigerating capacity of described room air conditioner is between 5 kilowatts to 10 kilowatts, and the inside diameter ranges of described low-pressure gas pipe is 8.5 millimeters to 11 millimeters.
7. room air conditioner according to claim 6 is characterized in that, the inside diameter ranges of described low-pressure gas pipe is 10 millimeters to 10.6 millimeters.
8. room air conditioner according to claim 1 is characterized in that, the specified refrigerating capacity of described room air conditioner is between 10 kilowatts to 16 kilowatts, and the inside diameter ranges of described low-pressure gas pipe is 11 millimeters to 14.5 millimeters.
9. room air conditioner according to claim 8 is characterized in that, the inside diameter ranges of described low-pressure gas pipe is 11.5 millimeters to 12.5 millimeters.
10. room air conditioner according to claim 1, it is characterized in that, the specified refrigerating capacity of described room air conditioner is less than 3.6 kilowatts, the inside diameter ranges of described high-pressure gas pipe is 4.0 millimeters to 6.5 millimeters, the inside diameter ranges of described highly pressurised liquid pipe is 2.5 millimeters to 5 millimeters, and the inside diameter ranges of described low pressure liquid pipe is 3 millimeters to 5 millimeters.
11. room air conditioner according to claim 10, it is characterized in that, the inside diameter ranges of described high-pressure gas pipe is 4.5 millimeters to 5.5 millimeters, and the inside diameter ranges of described highly pressurised liquid pipe is 3.8 millimeters to 4.5 millimeters, and the inside diameter ranges of described low pressure liquid pipe is 3.8 millimeters to 4.5 millimeters.
12. room air conditioner according to claim 1, it is characterized in that, the specified refrigerating capacity of described room air conditioner is between 3.6 kilowatts to 7.2 kilowatts, the inside diameter ranges of described high-pressure gas pipe is 5.5 millimeters to 7.5 millimeters, the inside diameter ranges of described highly pressurised liquid pipe is 2.5 millimeters to 5 millimeters, and the inside diameter ranges of described low pressure liquid pipe is 4.5 millimeters to 6.5 millimeters.
13. room air conditioner according to claim 12, it is characterized in that, the inside diameter ranges of described high-pressure gas pipe is 6.5 millimeters to 7.2 millimeters, and the inside diameter ranges of described highly pressurised liquid pipe is 3.8 millimeters to 4.5 millimeters, and the inside diameter ranges of described low pressure liquid pipe is 4.8 millimeters to 5.5 millimeters.
14. room air conditioner according to claim 1, it is characterized in that, the specified refrigerating capacity of described room air conditioner is between 7.2 kilowatts to 16 kilowatts, the inside diameter ranges of described high-pressure gas pipe is 7.2 millimeters to 10 millimeters, the inside diameter ranges of described highly pressurised liquid pipe is 4.5 millimeters to 6.5 millimeters, and the inside diameter ranges of described low pressure liquid pipe is 5.5 millimeters to 8.5 millimeters.
15. room air conditioner according to claim 14, it is characterized in that, the inside diameter ranges of described high-pressure gas pipe is 7.5 millimeters to 8.5 millimeters, and the inside diameter ranges of described highly pressurised liquid pipe is 4.8 millimeters to 5.5 millimeters, and the inside diameter ranges of described low pressure liquid pipe is 6.5 millimeters to 7.2 millimeters.
16. room air conditioner according to claim 1, it is characterized in that, described outdoor unit (12) also comprises 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, the ratio of S pipe and the internal diameter of the E pipe that is connected described indoor heat exchanger that described four-way change-over valve connects the air entry of described compressor (1) is 1, described S pipe is 1～1.8 with the ratio of the internal diameter of the D pipe of the exhaust outlet that is connected described compressor (1), described S pipe is 1～1.8 with the ratio of the internal diameter of the C pipe that is connected 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, and described D pipe is 0.95～1.05 with the ratio of the internal diameter of described high-pressure gas pipe.
17. room air conditioner according to claim 1, it is characterized in that, described restricting element is electric expansion valve or heating power expansion valve, the second pipe arrangement of the second end of described restricting element is 1～1.4 with the ratio of the internal diameter of the first pipe arrangement of first end, the second pipe arrangement of described restricting element is 3～5 with the ratio of the internal diameter of the valve port of described restricting element, described the second pipe arrangement is 0.95～1.05 with the ratio of the internal diameter of described low pressure liquid pipe, and described the first pipe arrangement is 0.95～1.05 with the ratio of the internal diameter of described highly pressurised liquid pipe.
18. room air conditioner 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 and described outdoor heat exchanger (2) is 0.67～1.5.
19. room air conditioner according to claim 18 is characterized in that, the expand tube external diameter scope of described indoor heat exchanger is 4.15 millimeters to 7.5 millimeters.
20. room air conditioner according to claim 19, it is characterized in that, described indoor heat exchanger comprises that expand tube external diameter scope is the heat exchanger tube of the combination of 4.15 millimeters to 4.3 millimeters or 5.15 millimeters to 5.35 millimeters or 6.2 millimeters to 6.35 millimeters or 6.55 millimeters to 6.75 millimeters or 7.25 millimeters to 7.5 millimeters or above number range.
21. room air conditioner according to claim 18 is characterized in that, the expand tube external diameter scope of described outdoor heat exchanger (2) is 4.15 millimeters to 8.5 millimeters.
22. room air conditioner according to claim 21, it is characterized in that, described outdoor heat exchanger comprises that expand tube external diameter scope is the heat exchanger tube of the combination of 4.15 millimeters to 4.3 millimeters or 5.15 millimeters to 5.35 millimeters or 6.2 millimeters to 6.35 millimeters or 6.55 millimeters to 6.75 millimeters or 7.25 millimeters to 7.5 millimeters or 8.25 to 8.5 millimeters or above number range.
23. room air conditioner according to claim 1, it is characterized in that, described indoor heat exchanger 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, highly be 1 millimeter to 2 millimeters, hole count is 0.5 to 1.2/millimeter with the ratio of width.
24. room air conditioner according to claim 23, it is characterized in that, described indoor heat exchanger 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 14 millimeters to 18 millimeters or 18 to 20 millimeters, highly is 1.2 millimeters to 1.4 millimeters or 1.4 millimeters to 2 millimeters.
25. room air conditioner 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 1.1～1.7 with the ratio of the internal diameter of described high-pressure gas pipe, and described low-pressure gas pipe is 1.6～2.5 with the ratio of the internal diameter of described highly pressurised liquid pipe.
26. the described room air conditioner of any one in 25 according to claim 1, 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 the mass ratio of R32 is more than 50% in the described mix refrigerant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220333406 CN202675718U (en) | 2012-07-10 | 2012-07-10 | Room air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220333406 CN202675718U (en) | 2012-07-10 | 2012-07-10 | Room air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202675718U true CN202675718U (en) | 2013-01-16 |
Family
ID=47496619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220333406 Expired - Lifetime CN202675718U (en) | 2012-07-10 | 2012-07-10 | Room air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202675718U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103968593A (en) * | 2013-02-05 | 2014-08-06 | 广东美的制冷设备有限公司 | Air conditioner with self-cooling circulating system |
| CN104764241A (en) * | 2015-03-30 | 2015-07-08 | 珠海格力电器股份有限公司 | Air conditioner |
| WO2022050351A1 (en) * | 2020-09-04 | 2022-03-10 | ダイキン工業株式会社 | Use of refrigerant in refrigeration cycle apparatus, and refrigeration cycle apparatus |
-
2012
- 2012-07-10 CN CN 201220333406 patent/CN202675718U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103968593A (en) * | 2013-02-05 | 2014-08-06 | 广东美的制冷设备有限公司 | Air conditioner with self-cooling circulating system |
| CN104764241A (en) * | 2015-03-30 | 2015-07-08 | 珠海格力电器股份有限公司 | Air conditioner |
| WO2022050351A1 (en) * | 2020-09-04 | 2022-03-10 | ダイキン工業株式会社 | Use of refrigerant in refrigeration cycle apparatus, and refrigeration cycle apparatus |
| JP2022044018A (en) * | 2020-09-04 | 2022-03-16 | ダイキン工業株式会社 | Use in refrigeration cycle device for refrigerant and refrigeration cycle device |
| JP7174289B2 (en) | 2020-09-04 | 2022-11-17 | ダイキン工業株式会社 | Use of refrigerant in refrigerating cycle device, and refrigerating cycle device |
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