CN104848515B - Air-conditioning heat exchanger and wall hanging type air conditioner indoor unit - Google Patents
Air-conditioning heat exchanger and wall hanging type air conditioner indoor unit Download PDFInfo
- Publication number
- CN104848515B CN104848515B CN201510212975.5A CN201510212975A CN104848515B CN 104848515 B CN104848515 B CN 104848515B CN 201510212975 A CN201510212975 A CN 201510212975A CN 104848515 B CN104848515 B CN 104848515B
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- row
- heat exchanger
- air
- interior
- conditioning
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Classifications
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- 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
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0003—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2221/00—Details or features not otherwise provided for
- F24F2221/17—Details or features not otherwise provided for mounted in a wall
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a kind of air-conditioning heat exchanger, including preceding heat exchanger and rear heat exchanger, preceding heat exchanger includes outer row and interior row；Heat exchanger includes first row, the 3rd row and the second row between first row and the 3rd row afterwards；The heat exchanging pipe of air-conditioning heat exchanger enters outer row middle and upper part since first row, through the first jumper pipe, then is divided into two-way by three-way pipe；Tie point is discharged into second row, the 3rd row from interior row middle and upper part along interior, and is flowed out from the first port positioned at the 3rd row front end；Second branch road enters outer row, interior row, and is flowed out from the second port positioned at interior row middle and lower part.The invention also discloses a kind of wall hanging type air conditioner indoor unit.The air-conditioning heat exchanger refrigerant of the present invention flows into first row first, then is shunted by three-way pipe.The big refrigerant of mass dryness fraction up flows into second row, the 3rd row, and the small refrigerant of mass dryness fraction moves along outer row, interior drainage so that whole heat transfer process is more uniform, more efficient.
Description
Technical field
The present invention relates to air-conditioning technical field, more particularly to a kind of air-conditioning heat exchanger and wall hanging type air conditioner indoor unit.
Background technology
As domestic and international energy efficiency of air conditioner standard is constantly lifted, how to improve the heat exchange efficiency of the heat exchanger of air conditioner turns into
Urgent problem to be solved.In numerous solutions, in brand-new design air conditioner using the high heat exchanger of heat exchange efficiency or
It is to compare to be replaced with the relatively low heat exchanger of the heat exchange property of air conditioner of the high heat exchanger of heat exchange efficiency to having produced in batches
Effective approach.
Existing air-conditioning heat exchanger generally comprises preceding heat exchanger and rear heat exchanger, when heat exchanger is in cooling condition, refrigeration
Agent flows into the import positioned at preceding heat exchanger middle and upper part first, then is directly divided into two-way by three-way pipe, all the way into rear heat exchanger, separately
Enter preceding heat exchanger all the way.This structure and stream cause the mass dryness fraction for entering refrigerant in preceding heat exchanger and rear heat exchanger heat-exchanging tube
It is more or less the same, so that heat exchanger is in the structure of more excellent heat exchange position before underusing, the refrigerant in rear heat exchanger is
To abundant heat exchange, and then cause heat exchange efficiency low.In addition, for the air conditioner produced in batches, the air channel system of its indoor set
System has been shaped, therefore is had certain limitations in structure, can not be such as adjusted in the length direction of existing evaporator.At present also
Do not propose that a kind of heat exchange property is higher, and adapt to produce in batches the heat exchanger of air-conditioned wind tunnel system.
The content of the invention
It is a primary object of the present invention to provide a kind of air-conditioning heat exchanger, it is intended to which existing air-conditioning heat exchanger heat exchange efficiency is low
Technical problem.
To achieve the above object, the present invention provides a kind of air-conditioning heat exchanger, including preceding heat exchanger and rear heat exchanger, before described
It is provided with double heat exchanger tube in heat exchanger, the heat exchanger tube in the preceding heat exchanger includes outer row and interior row；After described in heat exchanger
Be provided with three row's heat exchanger tubes, it is described after heat exchanger tube in heat exchanger include first row, the 3rd row and positioned at the first row and the
Second row between three rows；The outer row is located at the outside of the air-conditioning heat exchanger, the interior row and the 3rd ranking with first row
In the inner side of the air-conditioning heat exchanger；The heat exchanging pipe of the air-conditioning heat exchanger is from one end of the first row along the first row
The other end of the first row is reached, and enters the outer row middle and upper part through the first jumper pipe, then two-way is divided into by three-way pipe；The
One branch road from the interior row middle and upper part along it is described it is interior discharge into the second row, the 3rd row, and from positioned at the 3rd row front end
The first port outflow；Second branch road enters the outer row, interior row, and from the second port stream positioned at the interior row middle and lower part
Go out.
Preferably, described in the heat exchanging pipe of the air-conditioning heat exchanger from the front end of the first row along first row arrival
First row rear end, and enter the outer row middle and upper part through the first jumper pipe, then two-way is divided into by three-way pipe.
Preferably, described in the heat exchanging pipe of the air-conditioning heat exchanger from the rear end of the first row along first row arrival
First row front end, and enter the outer row middle and upper part through the first jumper pipe, then two-way is divided into by three-way pipe.
Preferably, the tie point along it is described it is interior be discharged to up to the top of the interior row, then enter institute through the second jumper pipe
Outer row upper end is stated, the upper end of the interior row is reached through the 3rd jumper pipe, enters the second row front end through the 4th jumper pipe again, then
The rear end of the second row is reached along the second row, then enters the rear end of the 3rd row through the 5th jumper pipe, then along described
3rd is discharged to up to first port, and is flowed out from first port.
Preferably, it is interior described in second curb to be discharged to up to the middle part of the interior row, through described in the entrance of the 6th jumper pipe
Outer row middle and upper part, then along the outer middle and lower part for being discharged to up in the middle part of the outer row, entering the interior row through the 7th jumper pipe, through the
Eight jumper pipes enter the middle and lower part of the outer row, then outer be discharged to up to the lower end of the outer row and enter through the 9th jumper pipe along described
Enter the lower end of the interior row, then along it is described it is interior be discharged to up to second port, and flowed out from second port.
Preferably, the tie point is identical with the quantity of the heat exchanger tube of second branch road.
Preferably, the outer row, interior row respectively include ten heat exchanger tubes；The first row includes four heat exchanger tubes, and described
Two rows, the 3rd row respectively include five heat exchanger tubes.
Preferably, the diameter range of the heat exchanger tube of the air-conditioning heat exchanger is：4.5mm~10mm.
Preferably, the length range of the heat exchanger tube tube expansion part of the air-conditioning heat exchanger is：450mm~700mm.
In addition, to achieve the above object, the present invention also provides a kind of wall hanging type air conditioner indoor unit, including as described above empty
Adjust device heat exchanger.
When the air-conditioning heat exchanger of the present invention is in cooling condition, refrigerant enters from one end of the first row of rear heat exchanger first
Enter, other end outflow, and shunted by three-way pipe.After the heat exchange of first row heat exchanger tube, refrigerant is by gravity
Influence, especially relatively low in refrigerant circulation frequency, in the case that flow velocity is relatively slow, the big refrigerant of mass dryness fraction up flows into second
Row, the 3rd row, and because second row, the 3rd exhaust air rate are relatively small, thus refrigerant heat exchanger is less, and then can reduce refrigerant
Evaporation overheat；The small refrigerant of mass dryness fraction moves along outer row, interior drainage, because air quantity is larger herein, thus exchange heat refrigerant heat exchanger compared with
It is more, and then refrigerant evaporation overheat can be improved.This structure of air-conditioning heat exchanger so that whole heat transfer process is more uniform,
It is more efficient.Thus, the APF (Annual Performance Factor whole year energy resource consumptions efficiency) of air conditioner can be by original
4.45 improve to 4.61.
Brief description of the drawings
Fig. 1 is the embodiment schematic elevation view of air-conditioning heat exchanger one of the present invention；
Fig. 2 is that the right side of air-conditioning heat exchanger in Fig. 1 regards schematic diagram；
Fig. 3 is the rough schematic view of heat exchanging pipe in Fig. 2；
Fig. 4 is the left view schematic diagram of air-conditioning heat exchanger in Fig. 1；
Fig. 5, which is that another embodiment of invention air-conditioning heat exchanger is right in Fig. 1, regards schematic diagram.
The realization, functional characteristics and advantage of the object of the invention will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
The present invention provides a kind of air-conditioning heat exchanger, referring to figs. 1 to Fig. 4, in one embodiment, before the air-conditioning heat exchanger includes
Heat exchanger 1 and rear heat exchanger 2, are provided with double heat exchanger tube in preceding heat exchanger 1, and the heat exchanger tube in preceding heat exchanger 1 includes outer row 11
With interior row 12；It is provided with three row's heat exchanger tubes in heat exchanger 2 afterwards, the heat exchanger tube in rear heat exchanger 2 includes first row 21, the 3rd row 23
And the second row 22 between the row 23 of first row 21 and the 3rd；Outer row 11 is located at the outside of air-conditioning heat exchanger with first row 21,
The interior row 23 of row 12 and the 3rd is located at the inner side of air-conditioning heat exchanger；The heat exchanging pipe of air-conditioning heat exchanger is from one end of first row 21 along
One row 21 reaches the other end of first row 21, and enters the outer middle and upper part of row 11 through the first jumper pipe 61, then is divided to by three-way pipe 3 for two
Road；Tie point 4 enters second row 22, the 3rd row 23 from the interior middle and upper part of row 12 along interior row 12, and from positioned at the front end of the 3rd row 23
The first port 71 flow out；Second branch road 5 enters outer row 11, interior row 12, and from the second port 72 positioned at the interior middle and lower part of row 12
Outflow.
The air-conditioning heat exchanger of the present invention is when being in cooling condition, and refrigerant is first from the one of the first row 21 of rear heat exchanger 2
End enters, other end outflow, and is shunted by three-way pipe 3.After the heat exchange of the heat exchanger tube of first row 21, refrigerant by
Influenceed to gravity, especially relatively low in refrigerant circulation frequency, in the case that flow velocity is relatively slow, the big refrigerant of mass dryness fraction is past upper
Enter second row 22, the 3rd row 23, and because second row 22, the air quantity of the 3rd row 23 are relatively small, thus refrigerant heat exchanger is less, and then
Refrigerant evaporation overheat can be reduced；The small refrigerant of mass dryness fraction flows along outer row 11, interior row 12, because air quantity is larger herein, by
This heat exchange refrigerant heat exchanger is more, and then can improve refrigerant evaporation overheat.This structure of air-conditioning heat exchanger so that whole
Heat transfer process is more uniform, more efficient.Thus, APF (the Annual Performance Factor whole year energy of air conditioner
Consumption efficiency) it can be improved by original 4.45 to 4.61.
Further, after the heat exchanging pipe of air-conditioning heat exchanger reaches first row 21 from the front end of first row 21 along first row 21
End, and enter the outer middle and upper part of row 11 through the first jumper pipe 61, then divided by three-way pipe 3 for two-way.Thus, refrigerant is by first row
21, when entering three-way pipe 3 through the first jumper pipe 61, because the rear end of first row 21 is in the position lower than the front end of first row 21,
Refrigerant speed when first row 21 flows can be accelerated, so as to which during shunting, collision is fiercer and then produces more in three-way pipe 3
Turbulent flow, promote refrigerant and heat transfer tube wall contact heat-exchanging, and liquid is preferably separated with gaseous refrigerant.
Further, reference picture 5, in another embodiment, the heat exchanging pipe of air-conditioning heat exchanger is from the rear end of first row 21
The front end of first row 21 is reached along first row 21, and enters the outer middle and upper part of row 11 through the first jumper pipe 61, then is divided to by three-way pipe 3 for two
Road.Thus, refrigerant needs to overcome gravity acting when first row 21 exchanges heat Bottomhole pressure, so as to slow down refrigerant flow rates, has
Help the separation of liquid gaseous state two phase refrigerant, the additionally making of non-refrigerant inlet pipe provides another selection.
Further, tie point 4 reaches the top of interior row 12 along interior row 12, then enters outer row 11 through the second jumper pipe 62
Upper end, the upper end for reaching through the 3rd jumper pipe 63 interior row 12, enter the front end of second row 22 through the 4th jumper pipe 64 again, then along second
Row 22 reaches the rear ends of second rows 22, then enters the rear end of the 3rd row 23 through the 5th jumper pipe 65, then reaches the along the 3rd row 23
One port 71, and flowed out from the first port 71.Stream of the refrigerant in rear heat exchanger 2 is divided into two level flowings, when the
One takes turns heat exchange of the refrigerant in first row 21, but after three-way pipe 3, the larger refrigerant of mass dryness fraction is in the row of second row 22 and the 3rd
Heat exchange in 23.Thus, it is possible to make full use of rear heat exchanger 2 respectively to arrange the air volume adjustment situation of heat exchanger tube present position, integrate and carry
High heat exchange efficiency.
Further, the second branch road 5 reaches the middle part of interior row 12 along interior row 12, enters through the 6th jumper pipe 66 in outer row 11
Top, then reached along outer row 11 in the middle part of outer row 11, through the 7th jumper pipe 67 into the middle and lower part of interior row 12, through the 8th jumper pipe 68
Into the middle and lower part of outer row 11, then reach the lower end of outer row 11 along outer row 11 and enter through the 9th jumper pipe 69 under interior row 12
End, then the second port 72 is reached along interior row 12, and flowed out from the second port 72.In stream of the refrigerant in preceding heat exchanger 1, outside
It is identical to arrange 11 path directions, when the interior path direction of row 12 switches so as to reduce along inverse half and half because freezing with heating condition, air-conditioning
The problem of difference of heat exchanger heat exchange efficiency is big.
Further, tie point 4 is identical with the quantity of the heat exchanger tube of the second branch road 5, exists so as to the refrigerant of two branch roads
Again from the resistance one for exporting the flowing into refrigerant during new circulation along each stream of confluxing fully after heat exchange, so as to whole air-conditioning
Exchanger heat exchange is more uniform, improves heat exchange efficiency.
Further, outer row 11, interior row 12 respectively include ten heat exchanger tubes；First row 21 includes four heat exchanger tubes, second row
22nd, the 3rd row 23 respectively includes five heat exchanger tubes.
Further, the diameter range of the heat exchanger tube of air-conditioning heat exchanger is：4.5mm~10mm, manufactured with facilitating.
Further, the length range of the heat exchanger tube tube expansion part of air-conditioning heat exchanger is：450mm~700mm, such as L in Fig. 1
It is shown.The length of heat exchanger tube tube expansion part is adapted with the diameter of heat exchanger tube, when heat exchanger tube is when being relatively large in diameter, correspondingly, is changed
The length of heat pipe tube expansion part also accordingly increases.
In addition, to achieve the above object, the present invention also provides a kind of wall hanging type air conditioner indoor unit, including air conditioner as above
Heat exchanger.The concrete structure of air-conditioning heat exchanger is referred to above-described embodiment, will not be repeated here.Due to the wall-hanging of the present invention
Indoor apparatus of air conditioner is provided with above-mentioned heat exchanger of air conditioner, therefore, more saves, meets the requirement of energy-saving and emission-reduction.
The preferred embodiments of the present invention are these are only, are not intended to limit the scope of the invention, it is every to utilize this hair
The equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (7)
1. a kind of air-conditioning heat exchanger, it is characterised in that including preceding heat exchanger and rear heat exchanger, be provided with the preceding heat exchanger double
Heat exchanger tube is arranged, the heat exchanger tube in the preceding heat exchanger includes outer row and interior row；Three row's heat exchanger tubes are provided with heat exchanger after described,
Heat exchanger tube after described in heat exchanger includes first row, the 3rd row and the second row between the first row and the 3rd row；
The outer row is located at the outside of the air-conditioning heat exchanger with first row, and the interior row and the 3rd is ranked in the air-conditioning heat exchanger
Inner side；Before the heat exchanging pipe of the air-conditioning heat exchanger reaches the first row from the rear end of the first row along the first row
End, and enter the outer row middle and upper part through the first jumper pipe, then two-way is divided into by three-way pipe；Tie point from the interior row on
Portion reaches the interior row top, enters back into the second row, the 3rd row, and from the first port stream positioned at the 3rd row front end
Go out, then the big refrigerant of mass dryness fraction up flows into the second row, the 3rd row；Interior row described in second curb reaches in described down
The middle part of row, enter the outer row middle and upper part through the 6th jumper pipe, then along it is described it is outer be discharged to up in the middle part of the outer row, through the 7th across
Take over the middle and lower part of the entrance interior row, enter the middle and lower part of the outer row through the 8th jumper pipe, then be discharged to outside up to institute along described
State the lower end of outer row and through the 9th jumper pipe enter the interior row lower end, then along it is described it is interior be discharged to up to second port, and
Flowed out from second port, then the small refrigerant of mass dryness fraction moves along outer row, interior drainage.
2. air-conditioning heat exchanger as claimed in claim 1, it is characterised in that the tie point interior is discharged to up to described interior along described
The top of row, then through the second jumper pipe enter the outer row upper end, the upper end of the interior row reached through the 3rd jumper pipe, again through the
Four jumper pipes enter the second row front end, then the rear end of the second row is reached along the second row, then through the 5th jumper pipe
It is discharged to up to first port into the rear end of the 3rd row, then along the described 3rd, and is flowed out from first port.
3. air-conditioning heat exchanger as claimed in claim 2, it is characterised in that the tie point and the heat exchange of second branch road
The quantity of pipe is identical.
4. air-conditioning heat exchanger as claimed in claim 1, it is characterised in that the outer row, interior row respectively include ten heat exchanger tubes；Institute
Stating first row includes four heat exchanger tubes, and the second row, the 3rd row respectively include five heat exchanger tubes.
5. air-conditioning heat exchanger as claimed in claim 1, it is characterised in that the diameter range of the heat exchanger tube of the air-conditioning heat exchanger
For：4.5mm~10mm.
6. air-conditioning heat exchanger as claimed in claim 5, it is characterised in that the heat exchanger tube tube expansion part of the air-conditioning heat exchanger
Length range is：450mm~700mm.
7. a kind of wall hanging type air conditioner indoor unit, it is characterised in that including the air-conditioning heat exchange as described in claim any one of 1-6
Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510212975.5A CN104848515B (en) | 2015-04-29 | 2015-04-29 | Air-conditioning heat exchanger and wall hanging type air conditioner indoor unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510212975.5A CN104848515B (en) | 2015-04-29 | 2015-04-29 | Air-conditioning heat exchanger and wall hanging type air conditioner indoor unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104848515A CN104848515A (en) | 2015-08-19 |
| CN104848515B true CN104848515B (en) | 2017-11-21 |
Family
ID=53848357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510212975.5A Active CN104848515B (en) | 2015-04-29 | 2015-04-29 | Air-conditioning heat exchanger and wall hanging type air conditioner indoor unit |
Country Status (1)
| Country | Link |
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| CN (1) | CN104848515B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678962B (en) * | 2016-11-30 | 2019-07-23 | 青岛海尔空调器有限总公司 | A kind of indoor unit and indoor unit refrigerating capacity/heating amount control method |
| WO2020047927A1 (en) * | 2018-09-03 | 2020-03-12 | 广东美的制冷设备有限公司 | Heat exchanger assembly and air conditioner indoor unit |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3255541B2 (en) * | 1994-08-08 | 2002-02-12 | 東芝キヤリア株式会社 | Air conditioner |
| JPH10176837A (en) * | 1996-12-17 | 1998-06-30 | Toshiba Corp | Air conditioner |
| JPH1194399A (en) * | 1997-09-25 | 1999-04-09 | Daikin Ind Ltd | Refrigerant distributor and air conditioner using it |
| CN201945096U (en) * | 2011-03-03 | 2011-08-24 | Tcl空调器(中山)有限公司 | Evaporator structure |
| CN202432665U (en) * | 2011-12-28 | 2012-09-12 | 广东美的电器股份有限公司 | Heat exchanger for air conditioner |
| CN204678665U (en) * | 2015-04-29 | 2015-09-30 | 广东美的制冷设备有限公司 | Air-condition heat exchanger and wall hanging type air conditioner indoor unit |
-
2015
- 2015-04-29 CN CN201510212975.5A patent/CN104848515B/en active Active
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| CN104848515A (en) | 2015-08-19 |
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