CN102635931A - Air-conditioner heat exchanger and air-conditioner by using mixing refrigerant - Google Patents
Air-conditioner heat exchanger and air-conditioner by using mixing refrigerant Download PDFInfo
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- CN102635931A CN102635931A CN2012101035367A CN201210103536A CN102635931A CN 102635931 A CN102635931 A CN 102635931A CN 2012101035367 A CN2012101035367 A CN 2012101035367A CN 201210103536 A CN201210103536 A CN 201210103536A CN 102635931 A CN102635931 A CN 102635931A
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Abstract
The invention provides an air-conditioner heat exchanger and an air-conditioner by using a mixing refrigerant. The air-conditioner heat exchanger comprises a finned tube exchanger, a header pipe, at least two shunting pipes, a shunt and the mixing refrigerant in the pipelines, wherein the shunt is used for connecting the header pipe and each shunting pipe; a part of the pipelines of the finned tube exchanger communicated with the header pipe extends to be connected with the shunt; and each shunting pipe connected with the shunt is then connected to the finned tube exchanger. The air-conditioner heat exchanger is characterized in that the shunting pipes are vertically arranged and have the same length and inner diameter, and the inner diameter of each shunting pipe is 2.0-3.5mm. The mixing refrigerant is a mixture of an HFC-32 mixing refrigerant and HFO-1234ze or HFO-1234yf mixing refrigerant, and the HFC-32 mixing refrigerant at least accounts for 50% of the total weight of the mixing refrigerant. With the adoption of the air-conditioner heat exchanger and the air-conditioner by using the mixing refrigerant, the temperature glide problem of the mixing refrigerant brought by non-azeotropy can be solved, and in addition, the heat exchange efficiency and the heating capability of the air-conditioner heat exchanger can be improved.
Description
Technical field
The invention belongs to air-conditioner manufacturing technology field, relate generally to the improvement of heat exchanger flow circuit system, is a kind of air-condition heat exchanger and air-conditioner that adopts mix refrigerant specifically.
Background technology
The latent values of cold-producing medium that conventional air conditioner is used such as global warmings such as R22, R410A (GWP) value is very high, and is big to environmental hazard.Freon refrigerant can destroy atmospheric ozone layer, produce greenhouse effects because of a large amount of dischargings.And latent (GWP) the low hydrogen cold-producing medium that is worth of global warmings such as R410A is inflammable, and security limitations is many, and safety precautions and protective device cost are high.Progressively replace by environment friendly refrigerating fluid at present, as: mixed non-azeotropic refrigerant etc.When mixed non-azeotropic refrigerant is used for air-conditioner, there is the temperature glide phenomenon, high to streaming request, and existing isocon internal diameter size is 5-6mm, and inapplicable mixed non-azeotropic refrigerant, the design of this heat exchanging device and stream thereof has proposed new requirement.And the spiral angle of the inner screw thread copper pipe that finned tube exchanger adopts in the prior art is approximately 10 °, and it is the narrow fin of 13.3mm that finned tube exchanger generally adopts the cooperation width.Therefore, how to select suitable mix refrigerant and improve the air conditioner heat-production ability of heat exchanger to improve, this is the technical problem that the present technique field needs to be resolved hurrily.
Summary of the invention
For solving the problem that prior art exists, the present invention provides a kind of air-condition heat exchanger and air-conditioner that adopts mix refrigerant, can improve mix refrigerant because the temperature glide problem that non-azeotropic brings; In addition, select suitable mix refrigerant, improve the heat exchange efficiency and the heating capacity of heat exchanger of air conditioner.
The objective of the invention is to realize: a kind of air-condition heat exchanger that adopts mix refrigerant through following technical scheme; Comprise finned tube exchanger, header, at least 2 road isocons, connect header and the current divider of each isocon and the mix refrigerant in the pipeline; A part of pipeline of said header connection finned tube exchanger is drawn and is connected with said current divider; Each isocon that said current divider connects inserts finned tube exchanger again; It is characterized in that vertical placement of described each isocon and length and internal diameter are identical, each isocon internal diameter size is 2.0-3.5mm.
Improvement to technique scheme: said finned tube exchanger adopts the 7mm inner screw thread copper pipe, and the spiral angle of inner screw thread copper pipe is greater than 25 °, and said finned tube exchanger adopts and cooperates the fin of width greater than 18mm.
Further improvement to technique scheme: described finned tube exchanger is at least 2 rows, adopts the fin of different pitch of fins, and the spacing of fin that the outside (windward side during air intake) finned tube exchanger adopts is littler than the spacing of fin that inboard finned tube exchanger adopts.
Further improvement to technique scheme: the spacing of fin that described inboard finned tube exchanger adopts is 1.5mm, and the spacing of fin that described outside finned tube exchanger adopts is 1.4mm.
The mix refrigerant that a kind of above-mentioned air-condition heat exchanger adopts; It is characterized in that said mix refrigerant is the mixture of two kinds of cold-producing mediums of HFO-1234ze or HFO-1234yf cold-producing medium and HFC-32 cold-producing medium, said HFC-32 cold-producing medium accounts for 50% of mix refrigerant gross weight at least.
A kind of air-conditioner that adopts mix refrigerant; Comprise indoor apparatus of air conditioner and air-conditioner outdoor unit; Air-conditioner outdoor unit comprises finned tube exchanger, header, at least 2 road isocons, connects header and the current divider of each isocon and the mix refrigerant in the pipeline; A part of pipeline of said header connection finned tube exchanger is drawn and is connected with said current divider; Each isocon that said current divider connects inserts finned tube exchanger again, it is characterized in that vertical placement of described each isocon and length and internal diameter are identical, and each isocon internal diameter size is 2.0-3.5mm.
Improvement to technique scheme: said finned tube exchanger adopts the 7mm inner screw thread copper pipe, and the spiral angle of inner screw thread copper pipe is greater than 25 °, and said finned tube exchanger adopts and cooperates the fin of width greater than 18mm.
Further improvement to technique scheme: described finned tube exchanger is at least 2 rows, adopts the fin of different pitch of fins, and the spacing of fin that the outside (windward side during air intake) finned tube exchanger adopts is littler than the spacing of fin that inboard finned tube exchanger adopts.
Further improvement to technique scheme: the spacing of fin that described inboard finned tube exchanger adopts is 1.5mm, and the spacing of fin that described outside finned tube exchanger adopts is 1.4mm.
The mix refrigerant that a kind of above-mentioned air-conditioner adopts; It is characterized in that described mix refrigerant is the mixture of two kinds of cold-producing mediums of HFO-1234ze or HFO-1234yf cold-producing medium and HFC-32 cold-producing medium, said HFC-32 cold-producing medium accounts for 50% of mix refrigerant gross weight at least.
The present invention compared with prior art has many advantages and good effect:
1, vertical placement of each isocon of the present invention and length and internal diameter are identical, and each isocon internal diameter size is 2.0-3.5mm.Make shunting more even, can improve mix refrigerant because the temperature glide problem that non-azeotropic brings.
2, finned heat exchanger of the present invention adopts the 7mm inner screw thread copper pipe to cooperate the wide fin design of width greater than 18mm, improves the air side heat exchange efficiency, delays air-conditioner frosting speed, improves the air conditioner heat-production ability, especially the heating capacity during low temperature.
3, finned tube exchanger of the present invention is at least 2 rows, adopts the fin of different pitch of fins, and the spacing of fin that the outside (windward side during air intake) finned tube exchanger adopts is less, and the spacing of fin that inboard finned tube exchanger adopts is bigger.Outside heat exchanger wind speed is very fast, and fin is closeer, improves heat exchanger efficiency, and inboard heat exchanger wind speed slows down, and the spacing of fin of employing is bigger, and fin is comparatively sparse, delays frosting speed.
4, the mix refrigerant of the present invention's employing is the mixture of two kinds of cold-producing mediums of HFC-32 cold-producing medium and HFO-1234ze or HFO-1234yf cold-producing medium; Said HFC-32 cold-producing medium accounts for 50% of mix refrigerant gross weight at least; Its cost is lower, and the GWP value of mix refrigerant is lower than 500.The present invention adopts this environmental protection mix refrigerant, and air-conditioner production can be adopted traditional technology with installation, and it is low to produce installation cost.
5, finned tube exchanger of the present invention is simple in structure, is convenient to processing and fabricating, and it is lower to increase cost.
Description of drawings
Fig. 1 is a kind of johning knot composition that adopts the air-condition heat exchanger of mix refrigerant of the present invention;
Fig. 2 is the sketch map of a kind of finned tube exchanger different fin spacing of the present invention;
Fig. 3 is a kind of schematic diagram that adopts the air-conditioner of mix refrigerant of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further described.
Referring to Fig. 1-Fig. 2; A kind of embodiment that adopts the air-condition heat exchanger of mix refrigerant of the present invention; Comprise finned tube exchanger 2, header 1, at least 2 road isocons 3, connect header 1 and the current divider 4 of each isocon 3 and the mix refrigerant in the pipeline; A part of pipeline that said header 2 is communicated with finned tube exchanger 3 is drawn and is connected with said current divider 4; Each isocon 3 that said current divider 4 connects inserts finned tube exchanger 2 again, and described each isocon 3 vertical placement and length and internal diameter are identical, and each isocon 3 internal diameter size is 2.0-3.5mm.
Above-mentioned finned tube exchanger 2 adopts the 7mm inner screw thread copper pipe, and the spiral angle of inner screw thread copper pipe is greater than 25 °, and the spiral angle of generally selecting inner screw thread copper pipe is 30 °, and above-mentioned finned tube heat exchange 2 is adopted and cooperated the fin of width greater than 18mm.
As shown in Figure 2; Above-mentioned finned tube exchanger 2 is at least 2 rows (being 2 rows in the present embodiment); Adopt the fin of different pitch of fins; The spacing of fin that the outside (windward side during air intake, Fig. 2 arrow direction is the air intake direction) finned tube exchanger 2-1 adopts is less, and can select spacing of fin is 1.4mm; The spacing of fin that inboard finned tube exchanger 2-2 adopts is bigger, and can select spacing of fin is 1.5mm.
Referring to Fig. 1-Fig. 3; A kind of air-conditioner that adopts mix refrigerant of the present invention; Mainly contain two kinds of schemes; The one, a complete set of system can be monoblock type, and compressor 5, outdoor heat exchanger 6, indoor heat exchanger 7, throttling arrangement 8, reversal valve 11 (the single cooler type can not adopt) connect the mix refrigerant circulated therein through pipeline.Outdoor fan 9 can be two fans of same driven by motor with indoor fan 10.The 2nd, a complete set of system can be split type; Compressor 5, outdoor heat exchanger 6, outdoor fan 9 etc. are in the outside; Link together through pipeline; Indoor heat exchanger 7 and indoor fan 10 are connected through pipeline when install and use with the indoor outside in the indoor, and mix refrigerant circulates in whole system.
The mix refrigerant that the present invention adopts is the mixture of two kinds of cold-producing mediums of HFC-32 cold-producing medium and HFO-1234ze cold-producing medium, and perhaps, mix refrigerant is the mixture of two kinds of cold-producing mediums of HFC-32 cold-producing medium and HFO-1234yf cold-producing medium.HFC-32 cold-producing medium in the mix refrigerant accounts for 50% of mix refrigerant gross weight at least, reaches as high as 90%, and the GWP value of mix refrigerant is lower than 500.The compatibility of this mix refrigerant and plastics, rubber, metal, refrigeration oil is all approaching with R410A, and pressure is a little less than R410A, and compressor, valve body, pipeline etc. all can be general with the R410A cold-producing medium.
Certainly, above-mentioned explanation is not to be limitation of the present invention, and the present invention also is not limited to above-mentioned giving an example.Those skilled in the art are in essential scope of the present invention, and the variation of making, remodeling, interpolation or replacement also should belong to protection scope of the present invention.
Claims (10)
1. air-condition heat exchanger that adopts mix refrigerant; Comprise finned tube exchanger, header, at least 2 road isocons, connect header and the current divider of each isocon and the mix refrigerant in the pipeline; A part of pipeline of said header connection finned tube exchanger is drawn and is connected with said current divider; Each isocon that said current divider connects inserts finned tube exchanger again; It is characterized in that vertical placement of described each isocon and length and internal diameter are identical, each isocon internal diameter size is 2.0-3.5mm.
2. according to the air-condition heat exchanger of the described employing mix refrigerant of claim 1; It is characterized in that said finned tube exchanger adopts the 7mm inner screw thread copper pipe; The spiral angle of inner screw thread copper pipe is greater than 25 °, and said finned tube exchanger adopts and cooperates the fin of width greater than 18mm.
3. according to the air-condition heat exchanger of claim 1 or 2 described employing mix refrigerants; It is characterized in that described finned tube exchanger is at least 2 rows; Adopt the fin of different pitch of fins, the spacing of fin that outside finned tube exchanger adopts is littler than the spacing of fin that inboard finned tube exchanger adopts.
4. according to the air-condition heat exchanger of the described employing mix refrigerant of claim 3, it is characterized in that the spacing of fin that described inboard finned tube exchanger adopts is 1.5mm, the spacing of fin that described outside finned tube exchanger adopts is 1.4mm.
5. mix refrigerant that adopts like the said air-condition heat exchanger of claim 1-4; It is characterized in that described mix refrigerant is the mixture of two kinds of cold-producing mediums of HFC-32 cold-producing medium and HFO-1234ze or HFO-1234yf cold-producing medium, said HFC-32 cold-producing medium accounts for 50% of mix refrigerant gross weight at least.
6. air-conditioner that adopts mix refrigerant; Comprise indoor apparatus of air conditioner and air-conditioner outdoor unit; Air-conditioner outdoor unit comprises finned tube exchanger, header, at least 2 road isocons, connects header and the current divider of each isocon and the mix refrigerant in the pipeline; A part of pipeline of said header connection finned tube exchanger is drawn and is connected with said current divider; Each isocon that said current divider connects inserts finned tube exchanger again, it is characterized in that vertical placement of described each isocon and length and internal diameter are identical, and each isocon internal diameter size is 2.0-3.5mm.
7. according to the air-conditioner of the described employing mix refrigerant of claim 6; It is characterized in that said finned tube exchanger adopts the 7mm inner screw thread copper pipe; The spiral angle of inner screw thread copper pipe is greater than 25 °, and said finned tube exchanger adopts and cooperates the fin of width greater than 18mm.
8. according to the air-conditioner of claim 6 or 7 described employing mix refrigerants; It is characterized in that described finned tube exchanger is at least 2 rows; Adopt the fin of different pitch of fins, the spacing of fin that outside finned tube exchanger adopts is littler than the spacing of fin that inboard finned tube exchanger adopts.
9. according to the air-conditioner of the described employing mix refrigerant of claim 8, it is characterized in that the spacing of fin that described inboard finned tube exchanger adopts is 1.5mm, the spacing of fin that described outside finned tube exchanger adopts is 1.4mm.
10. mix refrigerant that adopts like the said air-conditioner of claim 6-9; It is characterized in that described mix refrigerant is the mixture of two kinds of cold-producing mediums of HFC-32 cold-producing medium and HFO-1234ze or HFO-1234yf cold-producing medium, said HFC-32 cold-producing medium accounts for 50% of mix refrigerant gross weight at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210103536.7A CN102635931B (en) | 2012-02-17 | 2012-04-11 | Air-conditioner heat exchanger and air-conditioner by using mixing refrigerant |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
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| CN2012100362395 | 2012-02-17 | ||
| CN201210036239 | 2012-02-17 | ||
| CN201210036239.5 | 2012-02-17 | ||
| CN201210103536.7A CN102635931B (en) | 2012-02-17 | 2012-04-11 | Air-conditioner heat exchanger and air-conditioner by using mixing refrigerant |
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| CN102635931A true CN102635931A (en) | 2012-08-15 |
| CN102635931B CN102635931B (en) | 2017-03-22 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06265227A (en) * | 1993-03-11 | 1994-09-20 | Toshiba Corp | Device for air conditioning |
| CN1265463A (en) * | 1999-02-26 | 2000-09-06 | 松下电器产业株式会社 | Heat-exchanger |
| CN201285194Y (en) * | 2008-09-28 | 2009-08-05 | 海信（山东）空调有限公司 | Miniature high-efficiency condenser |
| CN101545702A (en) * | 2009-05-06 | 2009-09-30 | 海信（山东）空调有限公司 | Condenser of outdoor unit of air conditioner and outdoor unit provided with the condenser |
| CN201363972Y (en) * | 2009-03-13 | 2009-12-16 | 海信（山东）空调有限公司 | T-pipe for air conditioning condenser and air conditioner adopting same |
| CN101665681A (en) * | 2008-07-30 | 2010-03-10 | 霍尼韦尔国际公司 | compositions containing difluoromethane and fluorine substituted olefins |
| CN202521825U (en) * | 2012-02-17 | 2012-11-07 | 海尔集团公司 | Air-conditioner heat exchanger adopting mixed refrigerant and air-conditioner |
-
2012
- 2012-04-11 CN CN201210103536.7A patent/CN102635931B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06265227A (en) * | 1993-03-11 | 1994-09-20 | Toshiba Corp | Device for air conditioning |
| CN1265463A (en) * | 1999-02-26 | 2000-09-06 | 松下电器产业株式会社 | Heat-exchanger |
| CN101665681A (en) * | 2008-07-30 | 2010-03-10 | 霍尼韦尔国际公司 | compositions containing difluoromethane and fluorine substituted olefins |
| CN201285194Y (en) * | 2008-09-28 | 2009-08-05 | 海信（山东）空调有限公司 | Miniature high-efficiency condenser |
| CN201363972Y (en) * | 2009-03-13 | 2009-12-16 | 海信（山东）空调有限公司 | T-pipe for air conditioning condenser and air conditioner adopting same |
| CN101545702A (en) * | 2009-05-06 | 2009-09-30 | 海信（山东）空调有限公司 | Condenser of outdoor unit of air conditioner and outdoor unit provided with the condenser |
| CN202521825U (en) * | 2012-02-17 | 2012-11-07 | 海尔集团公司 | Air-conditioner heat exchanger adopting mixed refrigerant and air-conditioner |
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| CN102635931B (en) | 2017-03-22 |
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