CN106352717B - Flat tube, micro-channel heat exchanger and air-conditioning - Google Patents
Flat tube, micro-channel heat exchanger and air-conditioning Download PDFInfo
- Publication number
- CN106352717B CN106352717B CN201610901904.0A CN201610901904A CN106352717B CN 106352717 B CN106352717 B CN 106352717B CN 201610901904 A CN201610901904 A CN 201610901904A CN 106352717 B CN106352717 B CN 106352717B
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- China
- Prior art keywords
- flat tube
- heat exchanger
- micro
- guiding gutter
- air
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/124—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and being formed of pins
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/04—Condensers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/02—Tubular elements of cross-section which is non-circular
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F17/00—Removing ice or water from heat-exchange apparatus
- F28F17/005—Means for draining condensates from heat exchangers, e.g. from evaporators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2260/00—Heat exchangers or heat exchange elements having special size, e.g. microstructures
- F28F2260/02—Heat exchangers or heat exchange elements having special size, e.g. microstructures having microchannels
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Geometry (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The present invention provides a kind of flat tube, micro-channel heat exchanger and air-conditionings.Flat tube according to the present invention, flat tube inside have heat exchanger channels, and the outside of flat tube has the guiding gutter extended along flat tube length direction.Flat tube, micro-channel heat exchanger and air-conditioning according to the present invention, the guiding gutter extended through the external setting in flat tube along flat tube length direction, condensed water can be converged to more easily in surge tank under the action of air-flow and gravity, so as to which condensed water is more effectively discharged.
Description
Technical field
The present invention relates to field of air conditioning, in particular to a kind of flat tube, micro-channel heat exchanger and air-conditioning.
Background technique
Micro-channel heat exchanger is with the advantage in its efficient heat exchange property, compact structure and cost, in business, household system
The application of cold air conditioner industry has broad prospects, if but using and existing very according to the arrangement of traditional air conditioner heat exchanger
More problems, wherein condensation and frosting are two maximum difficult points, and problem is more prominent when using especially as outer machine condenser.
Found by analysis, when being disposed vertically no matter flat tube be it is vertical or horizontal, the condensed water of generation all will
It is blocked, can not smoothly flow down.When flat tube is placed vertically, condensed water will be blocked by fin, cold when flat tube is horizontally arranged
Condensate will be blocked by flat tube itself.Correlative study shows the pipe wing heat exchanger and Thermal Performance of Micro Channels for being equally disposed vertically
The condensed water of device, pipe wing heat exchanger 80% can exclude within the time of 1s, and micro-channel heat exchanger then needs the time of nearly 10s.
In addition, microchannel after soldering, remains certain brazing flux on its aluminum pipe and fin, uneven coarse surface is formed,
On the one hand to provide condensation nuclei when the condensation of heat exchanger wall surface humid air, the difficulty of condensed water exclusion is on the other hand also increased
Degree.The condensed water for being deposited in heat exchanger surface forms very big heat transfer resistance, restricts the performance of heat exchanger heat-transfer performance.Together
When, just because of micro-channel heat exchanger impeded drainage and surfaces versus rough, remained on surface membranaceous or pearl water droplet is formd
Core needed for frosting, so that micro-channel heat exchanger is easier to frosting.When correlation test research is also shown that ability is identical, microchannel
Heat exchanger is easier frosting compared with copper pipe aluminum fin heat exchanger, in frosting for the first time, i.e., when heat exchanger surface is also relatively dry, knot
White speed is 1.25 times of common copper pipe aluminum fin heat exchanger；And reason due to impeded drainage, micro-channel heat exchanger are passing through
Repeatedly after knot (changes) frost, average frosting velocity will faster than frosting for the first time 70% or so, while will be with copper pipe aluminum fin heat exchanger
Frosting velocity margi n pulls big under square one is to 1.78 times, and micro-channel heat exchanger defrost required time is compared with copper pipe aluminum fin
Heat exchanger long 40% or so.Micro-channel heat exchanger is in the average ability of frosting defrosting cycle low compared with copper pipe aluminum fin heat exchanger 22%
Left and right, EER low 13%.
The quick frosting for how containing micro-channel heat exchanger reduces the frequency of its defrosting and shortens defrosting time, is to improve
Its performance and promote its be widely applied institute must solution a great problem.
Summary of the invention
The present invention is intended to provide a kind of flat tube, micro-channel heat exchanger and air-conditioning that can effectively exclude condensed water.
The present invention provides a kind of flat tube, there are heat exchanger channels inside flat tube, the outside of flat tube has along flat tube length side
To the guiding gutter of extension.
Further, guiding gutter is arranged on the flat horizontal surface of the two sides of flat tube, and at least sets respectively on the flat horizontal surface of two sides
Set a guiding gutter.
Further, along the airflow direction on flat tube surface, the air side of flat tube is arranged in guiding gutter.
Further, along the airflow direction on flat tube surface, the air side of flat tube is provided with diversion division.
The present invention also provides a kind of micro-channel heat exchanger, including flat tube above-mentioned and the heat exchange fin being connect with flat tube,
And flat tube is vertically arranged.
Further, heat exchange fin is horizontally disposed or is in tilted layout.
Further, along the airflow direction on flat tube surface, the width of heat exchange fin is no more than the position of guiding gutter.
Further, it when being provided with more than two guiding gutters on the flat horizontal surface of flat tube, is provided with and leads on heat exchange fin
The corresponding avoiding structure of sink.
The present invention also provides a kind of air-conditionings, including micro-channel heat exchanger above-mentioned.
Flat tube, micro-channel heat exchanger and air-conditioning according to the present invention, by being arranged in the external of flat tube along flat tube length side
To the guiding gutter of extension, condensed water can be converged to more easily in surge tank under the action of air-flow and gravity, so as to
Condensed water is more effectively discharged.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the cross-sectional structure schematic diagram of flat tube according to the present invention；
Fig. 2 is the air current composition schematic diagram of flat tube according to the present invention；
Fig. 3 is the cross-sectional structure schematic diagram of flat tube according to the present invention Yu fin fit structure；
Fig. 4 is the schematic view of the front view of flat tube according to the present invention Yu fin fit structure.
Description of symbols:
10, flat tube；11, tube wall；12, heat exchanger channels；14, the first guiding gutter；15, the second guiding gutter；16, diversion division；
1, the first flat tube；2, the second flat tube；20, heat exchange fin.
Specific embodiment
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figures 1 to 3, flat tube according to the present invention, flat tube inside have heat exchanger channels 12, and heat exchanger channels 12 pass through pipe
Wall 11 exchanges heat, and the outside of flat tube has the guiding gutter extended along flat tube length direction.The present invention in the external of flat tube by being arranged
The guiding gutter extended along flat tube length direction, condensed water can more easily converge to pouring under the action of air-flow and gravity
In slot, so as to which condensed water is more effectively discharged.
Specifically, shown in cross-sectional view as shown in connection with fig. 1, guiding gutter is arranged on the flat horizontal surface of the two sides of flat tube, i.e.,
On two sides up and down shown in FIG. 1, and a guiding gutter is respectively provided at least on the flat horizontal surface of two sides, in Fig. 2, upside is set
It is equipped with the first guiding gutter 14, downside is provided with the second guiding gutter 15.It, can also in the same side in the case where flat horizontal surface wider width
Multiple guiding gutters are arranged.
Preferably, in conjunction with shown in Fig. 2 and Fig. 3, the outlet air of flat tube is arranged in airflow direction along flat tube surface, guiding gutter
Side converges in guiding gutter, convenient for condensed water under the action of air-flow to improve drainage effect.It is highly preferred that flat tube goes out
Wind side is provided with diversion division, to adjust outlet air airflow direction, the shape by reasonably designing flat tube diversion division can be played
Upset to blow out and flow direction, weakens the effect of blowing feeling.
In conjunction with shown in Fig. 3 and Fig. 4, the present invention also provides a kind of micro-channel heat exchanger, including flat tube above-mentioned 10 and with
The heat exchange fin 20 that flat tube 10 connects, and flat tube 10 is vertically arranged, under the double action of air-flow and gravity, 10 wall surface of flat tube and
The water that 20 surface of heat exchange fin generates can flow into the guiding gutter being vertically arranged, and drain under the effect of gravity.
As shown in Figure 3 and Figure 4, heat exchange fin 20 is arranged between adjacent the first flat tube 1 and the second flat tube 2, heat exchange wing
Piece 20 can be horizontally disposed, can also with using tilt layout as shown in Figure 4.Preferably, along the air-flow on flat tube surface
Direction, the width of heat exchange fin 20, which is no more than the position of guiding gutter namely guiding gutter corresponding position, does not have heat exchange fin 20, so that
Condensed water can converge in guiding gutter.
Further, when being provided with more than two guiding gutters on the flat horizontal surface of flat tube, be provided on heat exchange fin 20 with
The corresponding avoiding structure of guiding gutter namely guiding gutter corresponding position are not provided with heat exchange fin 20.
The present invention also provides a kind of air-conditionings, including micro-channel heat exchanger above-mentioned, so as to exclude condensed water in time,
Solve the problems, such as condensation and frosting.
It can be seen from the above description that the above embodiments of the present invention realized the following chievements:
Flat tube, micro-channel heat exchanger and air-conditioning according to the present invention are additionally arranged guiding gutter, structure by the air side in flat tube
At flat tube water conservancy diversion side, under the double action of air-flow and gravity, the water that flat tube wall surface and fin surface generate can flow into perpendicular
Straight guiding gutter, and drain under the effect of gravity.This kind of design method is analyzed from the loading angle of condensation, is additionally arranged flat tube water conservancy diversion
Side solves the problems, such as the influence of condensation and frosting to micro-channel heat exchanger performance, and is used for when indoor unit (blower is in inlet side),
Shape by reasonably designing flat tube water conservancy diversion side can play the role of upsetting to blow out flowing direction, weaken blowing feeling.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of flat tube, the flat tube inside has heat exchanger channels (12), which is characterized in that the outside of the flat tube has along flat
The guiding gutter that length of tube direction extends；
The guiding gutter is arranged on the flat horizontal surface of the two sides of the flat tube, and one is respectively provided at least on the flat horizontal surface of two sides
The guiding gutter；
The air side of the flat tube is arranged in airflow direction along the flat tube surface, the guiding gutter；
Airflow direction along the flat tube surface, the air side of the flat tube are provided with diversion division (16).
2. a kind of micro-channel heat exchanger, including flat tube and the heat exchange fin being connect with the flat tube (20), which is characterized in that described
Flat tube is flat tube described in claim 1, and the flat tube is vertically arranged.
3. micro-channel heat exchanger according to claim 2, which is characterized in that
The heat exchange fin (20) is horizontally disposed or is in tilted layout.
4. micro-channel heat exchanger according to claim 2, which is characterized in that
Airflow direction along the flat tube surface, the width of the heat exchange fin (20) are no more than the position of the guiding gutter.
5. micro-channel heat exchanger according to claim 2, which is characterized in that
When being provided with more than two guiding gutters on the flat horizontal surface of the flat tube, be provided on the heat exchange fin (20) with
The corresponding avoiding structure of the guiding gutter.
6. a kind of air-conditioning, including micro-channel heat exchanger, which is characterized in that the micro-channel heat exchanger is to appoint in claim 2 to 5
Micro-channel heat exchanger described in one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610901904.0A CN106352717B (en) | 2016-10-17 | 2016-10-17 | Flat tube, micro-channel heat exchanger and air-conditioning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610901904.0A CN106352717B (en) | 2016-10-17 | 2016-10-17 | Flat tube, micro-channel heat exchanger and air-conditioning |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106352717A CN106352717A (en) | 2017-01-25 |
| CN106352717B true CN106352717B (en) | 2019-01-18 |
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ID=57865975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610901904.0A Active CN106352717B (en) | 2016-10-17 | 2016-10-17 | Flat tube, micro-channel heat exchanger and air-conditioning |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106352717B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106369881B (en) * | 2016-11-02 | 2022-05-24 | 珠海格力电器股份有限公司 | Microchannel heat exchanger and air conditioner |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201449172U (en) * | 2009-05-15 | 2010-05-05 | 珠海格力电器股份有限公司 | Micro-channel heat exchanger with drainage function |
| CN102494443A (en) * | 2011-12-02 | 2012-06-13 | 四川长虹电器股份有限公司 | Microchannel heat exchanger capable of facilitating to drainage of condensed water |
| WO2013183136A1 (en) * | 2012-06-07 | 2013-12-12 | 株式会社日立製作所 | Air heat exchanger |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007183029A (en) * | 2006-01-05 | 2007-07-19 | T Rad Co Ltd | Heat exchanger for recovering latent heat |
| CN202793162U (en) * | 2012-07-09 | 2013-03-13 | 广东美的电器股份有限公司 | Flat tube of parallel flow heat exchanger, parallel flow heat exchanger and air-conditioner |
| CN203053291U (en) * | 2012-12-18 | 2013-07-10 | 芜湖博耐尔汽车电气系统有限公司 | Micro-channel flat tube used for parallel current evaporator |
| CN206222968U (en) * | 2016-10-17 | 2017-06-06 | 珠海格力电器股份有限公司 | Flat tube, micro-channel heat exchanger and air-conditioning |
-
2016
- 2016-10-17 CN CN201610901904.0A patent/CN106352717B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201449172U (en) * | 2009-05-15 | 2010-05-05 | 珠海格力电器股份有限公司 | Micro-channel heat exchanger with drainage function |
| CN102494443A (en) * | 2011-12-02 | 2012-06-13 | 四川长虹电器股份有限公司 | Microchannel heat exchanger capable of facilitating to drainage of condensed water |
| WO2013183136A1 (en) * | 2012-06-07 | 2013-12-12 | 株式会社日立製作所 | Air heat exchanger |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106352717A (en) | 2017-01-25 |
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