CN101975491A - Heat exchange device - Google Patents

Heat exchange device Download PDF

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Publication number
CN101975491A
CN101975491A CN 201010512716 CN201010512716A CN101975491A CN 101975491 A CN101975491 A CN 101975491A CN 201010512716 CN201010512716 CN 201010512716 CN 201010512716 A CN201010512716 A CN 201010512716A CN 101975491 A CN101975491 A CN 101975491A
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CN
China
Prior art keywords
fin
air
heat
micro
inlet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN 201010512716
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Chinese (zh)
Inventor
徐绍勇
佐藤宪一郎
林飞
任志洁
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GD Midea Air Conditioning Equipment Co Ltd
Original Assignee
Guangdong Midea Refrigeration Equipment Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Midea Refrigeration Equipment Co Ltd filed Critical Guangdong Midea Refrigeration Equipment Co Ltd
Priority to CN 201010512716 priority Critical patent/CN101975491A/en
Publication of CN101975491A publication Critical patent/CN101975491A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a heat exchange device, which comprises at least one micro-channel heat exchanger, wherein the micro-channel heat exchanger comprises a first collecting pipe, a second collecting pipe arranged in parallel with the first collecting pipe in certain distance, a plurality of oblate pipes arranged between the first collecting pipe and the second collecting pipe and mutually spaced in certain distance, and a plurality of fins arranged between the oblate pipes respectively; a plurality of micro-channels for communicating the first collecting pipe and the second collecting pipe are formed in the oblate pipes; and the heat exchange device comprises an air inlet fin and an air outlet fin, wherein the air inlet fin and the air outlet fin are positioned on two micro-channel heat exchangers arranged side by side in certain clearance, or the air inlet fin and the air outlet fin are positioned on the same micro-channel heat exchanger, the surface of the air inlet fin is inclined at any position towards the air outlet side, and the surface of the air outlet fin is downwards inclined towards the air outlet side. The air flue flow path has reasonable design, is favorable for improving the heat exchange capability of the heat exchanger and reducing the air flue resistance, and has extremely good heat exchange effect.

Description

A kind of heat-exchanger rig
Technical field:
What the present invention relates to is a kind of heat-exchanger rig, belongs to the air-conditioning technique field.
Background technology:
At present, micro-channel heat exchanger surface as cabinet-type air conditioner air conditioner room unit heat exchanger the time can produce condensed water, discharge the performance of condensed water in order to improve heat exchanger, header is horizontally disposed with and flat tube vertically is installed between the header, header is positioned at both sides up and down, straightway with the air heat exchange on the fin that is provided with between the adjacent flat tube often all is a level, will appear at the situation of edge ponding; Have at fin under the situation of calking, condensed water can be along the fin of calking below top fin flows to, though realized draining, because the combining structure between inlet side fin and the air side fin is provided with unreasonable, the condensed water of superposed fin need could finally be drained through all fins of its underpart, the mobile distance of condensed water is longer, influences the heat exchange effect in flow process, and windage is bigger, hinder circulation of air, reduced heat exchange efficiency.
Summary of the invention:
The technical problem that will solve of the present invention is at above shortcomings in the prior art, provides a kind of simple in structure, low cost, the heat-exchanger rig that heat exchange efficiency is high.
Another object of the present invention provides a kind of heat-exchanger rig that can effectively improve drainage performance.
The present invention realizes by following technical proposals.
A kind of heat-exchanger rig, comprise micro-channel heat exchanger, micro-channel heat exchanger comprises first header, second header of alternate certain distance configured in parallel with first header, be connected between first header and second header and some flat tubes of space certain distance and be separately positioned on some fins between the adjacent flat tube, flat tube inside is provided with many microchannels that are communicated with first header and second header, it is characterized in that: described fin comprises inlet side fin and air side fin, the inlet side fin surface tilts with the optional position towards the air side, and the air side fin surface is downward-sloping towards the air side.
The inlet side fin surface of described heat-exchanger rig is inclined upwardly towards the air side.
Described micro-channel heat exchanger comprises two, and is arranged side by side with certain interval, and inlet side fin, air side fin lay respectively on the different micro-channel heat exchangers; Perhaps, institute's micro-channel heat exchanger is one, and inlet side fin and air side fin are positioned on the same micro-channel heat exchanger.
The spacing of described inlet side fin and air side fin is 0.3cm~2.5cm, and perhaps inlet side fin and air side fin link together and in its junction osculum be set.
The sheet spacing of described inlet side fin is greater than the sheet spacing of air side fin.
The air side of described arbitrary fin is accommodated in up and down in the flat tube edge, beyond the outstanding flat tube edge up and down, its inlet side.
The air channel that it is rectangle or trapezoidal or parallelogram that described fin has several end surface shape through being bent to form is provided with the circular arc lead angle in the bending place.
As a further improvement on the present invention, be provided with protruding eaves in the end of fin, protruding eaves is provided with guiding gutter.
Described two micro-channel heat exchangers serial connections that are arranged side by side with certain interval or connect together after work simultaneously.
This heat-exchanger rig is applied on the heat exchanger of cabinet-type air conditioner air conditioner room unit or off-premises station, and micro-channel heat exchanger and horizontal direction form an angle theta, 30 °≤θ≤90 °.
The invention has the beneficial effects as follows: 1) heat-exchanger rig comprises inlet side fin and air side fin, the inlet side fin surface tilts with the optional position towards the air side when heat-exchanger rig is vertical, the air side fin surface is downward-sloping towards the air side, the air channel flow path designs is reasonable, help improving the exchange capability of heat of heat exchanger, reduce duct resistance, the heat exchange effect is splendid; 2) preferred plan of heat-exchanger rig is that the inlet side fin surface is inclined upwardly towards the air side, and the air side fin surface is downward-sloping towards the air side, its duct resistance minimum, and heat exchange efficiency is the highest; 3) the fin air channel that to have several front shape through being bent to form be rectangle or shapes such as trapezoidal or parallelogram, the selection variation of air channel shape can be selected required air channel according to different actual demands, and is flexible and convenient to use; 4) in the flat tube edge, beyond the outstanding flat tube edge up and down, its inlet side, also form a circular arc lead angle about the air side of each fin is accommodated in, can better make condensed water flow out fin, reduce duct resistance in the bending place; 5) end of fin is provided with protruding eaves, and protruding eaves is provided with guiding gutter, makes the condensed water on the fin collect in the guiding gutter and past effluxing, thereby helps the heat exchange of heat exchanger and reduce windage; 6) the sheet spacing of the sheet gap ratio air side fin of inlet side fin is big slightly, helps promoting the heat exchange effect and the drainage performance of heat exchanger; 7) this heat-exchanger rig is applied on the heat exchanger of cabinet-type air conditioner air conditioner room unit or off-premises station, and heat-exchange capacity is strong, and the heat exchange effect is good.
Description of drawings:
Fig. 1 is the application schematic diagram of heat-exchanger rig of the present invention.
Fig. 2 is first kind of inner air channel structure schematic diagram of heat-exchanger rig of the present invention inlet side fin and air side fin when adopting two micro-channel heat exchanger.
Fig. 3 is second kind of inner air channel structure schematic diagram of heat-exchanger rig of the present invention inlet side fin and air side fin when adopting two micro-channel heat exchanger.
Fig. 4 is the third inner air channel structure schematic diagram of heat-exchanger rig of the present invention inlet side fin and air side fin when adopting two micro-channel heat exchanger.
Fig. 5 is first kind of inner air channel structure schematic diagram of heat-exchanger rig of the present invention inlet side fin and air side fin when adopting single micro-channel heat exchanger.
Fig. 6 is second kind of inner air channel structure schematic diagram of heat-exchanger rig of the present invention inlet side fin and air side fin when adopting single micro-channel heat exchanger.
Fig. 7 is the third inner air channel structure schematic diagram of heat-exchanger rig of the present invention inlet side fin and air side fin when adopting single micro-channel heat exchanger.
Fig. 8 is the structure chart of micro-channel heat exchanger in the heat-exchanger rig of the present invention.
Fig. 9 is the Facad structure schematic diagram of the fin of wherein a kind of embodiment of the present invention.
Figure 10 is the Facad structure schematic diagram of the fin of another embodiment of the invention.
Figure 11 is the Facad structure schematic diagram of the fin of another embodiment of the present invention.
Figure 12 is the expansion planar structure schematic diagram of fin of the present invention.
Figure 13 be among the present invention fin at the structural representation between the flat tube up and down.
Figure 14 is the inside air channel structure figure of fin.
Figure 15 is wherein a kind of connection diagram of first micro-channel heat exchanger and second micro-channel heat exchanger among the present invention.
Figure 16 is the another kind of connection diagram of first micro-channel heat exchanger and second micro-channel heat exchanger among the present invention.
Figure 17 is another connection diagram of first micro-channel heat exchanger and second micro-channel heat exchanger among the present invention.
Figure 18 is another connection diagram of first micro-channel heat exchanger and second micro-channel heat exchanger among the present invention.
The specific embodiment:
Also the present invention is described in further detail in conjunction with the accompanying drawings below by specific embodiment.
As shown in Figure 1, a kind of heat-exchanger rig is applied on the heat exchanger of cabinet-type air conditioner air conditioner room unit or off-premises station, as evaporimeter.It comprises at least one micro-channel heat exchanger 1.See Fig. 1, the micro-channel heat exchanger and the horizontal direction that are arranged on cabinet-type air conditioner air conditioner room unit the inside form an angle theta, 30 °≤θ≤90 °.In conjunction with Fig. 8 as can be known, micro-channel heat exchanger 1 generally all comprises first header 11, and second header 12 of first header, 11 alternate certain distance configured in parallel, is connected some the flat tubes 13 of the space certain distance between first header 11 and second header 12 and is separately positioned on some fins 14 between the adjacent flat tube 13.As shown in Figure 13, flat tube 13 inside are provided with many microchannels 131 that are communicated with first header 11 and second header 12.The fin 14 of heat-exchanger rig comprises inlet side fin 141 and air side fin 142, inlet side fin 141, air side fin 142 can lay respectively on two micro-channel heat exchangers that are arranged side by side with certain interval, perhaps inlet side fin 141 and air side fin 142 are positioned on the same micro-channel heat exchanger, selection mode is not unique, can select flexibly to use by actual needs.As Fig. 2, Fig. 3, shown in Figure 4, inlet side fin 141, air side fin 142 lay respectively on two micro-channel heat exchangers that are arranged side by side with certain interval, perhaps as Fig. 5, Fig. 6, shown in Figure 7, inlet side fin 141 and air side fin 142 are positioned on the same micro-channel heat exchanger, fin 141 surfaces in inlet side tilt with the optional position towards the air side when heat-exchanger rig is upright, fin 142 surfaces in air side are downward-sloping towards the air side, the air channel flow path designs is reasonable like this, help improving the exchange capability of heat of heat exchanger, reduce duct resistance, the heat exchange effect is splendid.
Shown in Fig. 2, Fig. 5 is the preferred technique scheme that the present invention adopts, inlet side fin 141 surfaces be inclined upwardly towards the air side (flow direction that arrow is depicted as wind among the figure), fin 142 surfaces in air side are downward-sloping towards the air side, its duct resistance minimum, and heat exchange efficiency is the highest.And among Fig. 3 and Fig. 6, the 141 surface level settings of inlet side fin, fin 142 surfaces in air side are downward-sloping towards the air side, and heat exchange effect like this reduces relatively.As Fig. 4, shown in Figure 7, when inlet side fin 141 surface and 142 surface whiles of air side fin are downward-sloping towards the air side, take all factors into consideration factors such as windage problem and drainage effect, preferred plan be exactly make inlet side fin 141 surperficial air channels depart from the angle angle of horizontal direction and angle angle that horizontal direction is departed from fin 142 surperficial air channels in air side inequality.
Among the embodiment, the spacing between two micro-channel heat exchangers that are arranged side by side with certain interval is 0.3cm~2.5cm, and the sheet spacing of the sheet gap ratio air side fin 142 of inlet side fin 141 is big slightly; The inlet side fin 141 and the air side fin 142 that perhaps are positioned on the same micro-channel heat exchanger 1 separate configuration with spacing 0.3cm~2.5cm, perhaps can link together, but in its junction osculum are set.
As shown in Figure 9, the air channel that it is rectangle that fin 14 has several front shape through being bent to form, perhaps can adopt fin structure shown in Figure 10, it is trapezoidal air channel that this fin 14 has several end surface shape through being bent to form, perhaps can also adopt fin structure shown in Figure 11, the air channel that it is parallelogram that this fin 14 has several end surface shape through being bent to form, all form a circular arc lead angle 140 in the bending place of above fin 14, can better make condensed water flow out fin, reduce duct resistance.As shown in figure 13, the end, air side 147 of each fin 14 is accommodated in up and down in flat tube 13 edges, beyond its 148 outstanding flat tube 13 edges up and down, end, inlet side (arrow is depicted as the flow direction of wind among the figure).
By shown in Figure 14, between the air side of the last fin that has a down dip 14 and inlet side, be provided with some inclined-planes 143, the vertical tilt angle on this inclined-plane 143 is α, 45 °≤α≤79 °, in conjunction with Figure 12 as can be known, also be provided with leg-of-mutton protruding eaves 144 in the end of fin 14, the angular range at the end angle 146 of protruding eaves 144 is 120 °~180 °, also be provided with guiding gutter 145 on the leg-of-mutton protruding eaves 144, make the condensed water on the fin collect in the guiding gutter 145 and past effluxing, thereby help the heat exchange of heat exchanger and reduce windage, the width dimensions scope of this guiding gutter 145 is 1.0mm~1.6mm.
In the foregoing description, work simultaneously with two the micro-channel heat exchanger serial connections or the back injection refrigerant that connects together that certain interval is arranged side by side.As shown in figure 15, two micro-channel heat exchangers connect together, first header 11 of the first micro-channel heat exchanger 1a and the second micro-channel heat exchanger 1b is interconnected, refrigerant can flow into from first header 11 of the first micro-channel heat exchanger 1a, be divided into two big branch roads then, to be refrigerant flow to flat tube 13 from first header 11 of the first micro-channel heat exchanger 1a to first branch road, and second header 12 through this micro-channel heat exchanger 1a flows out then; To be refrigerant flow to first header 11 of the second micro-channel heat exchanger 1b from first header 11 of the first micro-channel heat exchanger 1a to second largest branch road, flows to the flat tube 13 of the second micro-channel heat exchanger 1b then, flows out through second header 12 again.As shown in figure 16, two micro-channel heat exchangers connect together, their second header 12 is interconnected, refrigerant can flow into from second header 12 of first micro-channel heat exchanger, be divided into two big branch roads then, to be refrigerant flow to flat tube 13 from second header 12 of first micro-channel heat exchanger to first branch road, and first header 11 through this micro-channel heat exchanger flows out then; To be refrigerant flow to second header 12 of second micro-channel heat exchanger from second header 12 of first micro-channel heat exchanger to second largest branch road, flows to the flat tube 13 of second micro-channel heat exchanger then, flows out through first header 11 again.As shown in figure 17, first header 11, the corresponding simultaneously connection of second header 12 of two micro-channel heat exchangers.As shown in figure 18, injecting refrigerant after two micro-channel heat exchangers are serially connected works simultaneously.
When this heat-exchanger rig is used as the heat exchanger of cabinet-type air conditioner heat-pump-type indoor and outdoor machine, can reduce windage, when being used as the evaporimeter of cabinet-type air conditioner indoor set, can improve drainage performance, when being used as the evaporimeter of cabinet-type air conditioner off-premises station, can improve drainage performance, reduce frosting, promote to defrost.

Claims (10)

1. heat-exchanger rig, comprise micro-channel heat exchanger, micro-channel heat exchanger comprises first header, second header of alternate certain distance configured in parallel with first header, be connected between first header and second header and some flat tubes of space certain distance and be separately positioned on some fins between the adjacent flat tube, flat tube inside is provided with many microchannels that are communicated with first header and second header, it is characterized in that: described fin comprises inlet side fin and air side fin, the inlet side fin surface tilts with the optional position towards the air side, and the air side fin surface is downward-sloping towards the air side.
2. a kind of heat-exchanger rig according to claim 1 is characterized in that: the inlet side fin surface of described heat-exchanger rig is inclined upwardly towards the air side.
3. a kind of heat-exchanger rig according to claim 1 and 2 is characterized in that: described micro-channel heat exchanger comprises two, and is arranged side by side with certain interval, and inlet side fin, air side fin lay respectively on the different micro-channel heat exchangers; Perhaps, institute's micro-channel heat exchanger is one, and inlet side fin and air side fin are positioned on the same micro-channel heat exchanger.
4. a kind of heat-exchanger rig according to claim 3 is characterized in that: the spacing of described inlet side fin and air side fin is 0.3cm~2.5cm, and perhaps inlet side fin and air side fin link together and in its junction osculum be set.
5. a kind of heat-exchanger rig according to claim 1 and 2 is characterized in that: the sheet spacing of described inlet side fin is greater than the sheet spacing of air side fin.
6. a kind of heat-exchanger rig according to claim 4 is characterized in that: the air side of described arbitrary fin is accommodated in up and down in the flat tube edge, beyond the outstanding flat tube edge up and down, its inlet side.
7. a kind of heat-exchanger rig according to claim 6 is characterized in that: the air channel that it is rectangle or trapezoidal or parallelogram that described fin has several end surface shape through being bent to form is provided with the circular arc lead angle in the bending place.
8. a kind of heat-exchanger rig according to claim 7 is characterized in that: be provided with protruding eaves in the end of fin, protruding eaves is provided with guiding gutter.
9. a kind of heat-exchanger rig according to claim 3 is characterized in that: described two micro-channel heat exchangers serial connections that are arranged side by side with certain interval or connect together after work simultaneously.
10. a kind of heat-exchanger rig according to claim 3 is characterized in that: this heat-exchanger rig is applied on the heat exchanger of cabinet-type air conditioner air conditioner room unit or off-premises station, and micro-channel heat exchanger and horizontal direction form an angle theta, 30 °≤θ≤90 °.
CN 201010512716 2010-10-19 2010-10-19 Heat exchange device Pending CN101975491A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201010512716 CN101975491A (en) 2010-10-19 2010-10-19 Heat exchange device

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Application Number Priority Date Filing Date Title
CN 201010512716 CN101975491A (en) 2010-10-19 2010-10-19 Heat exchange device

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102853586A (en) * 2012-09-04 2013-01-02 广东美的制冷设备有限公司 Concurrent flow heat exchanger and air conditioner
CN109974484A (en) * 2019-04-15 2019-07-05 合肥华凌股份有限公司 Heat exchanger and refrigeration equipment with it

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4332293A (en) * 1980-04-30 1982-06-01 Nippondenso Co., Ltd. Corrugated fin type heat exchanger
CN1879003A (en) * 2003-11-14 2006-12-13 昭和电工株式会社 Evaporator and process for fabricating same
CN201387254Y (en) * 2009-03-19 2010-01-20 美的集团有限公司 Aluminum micro-channel heat exchanger
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
CN101706225A (en) * 2009-11-13 2010-05-12 三花丹佛斯(杭州)微通道换热器有限公司 Heat exchanger and fin thereof, as well as heat exchanging device comprising heat exchanger
CN201844616U (en) * 2010-10-19 2011-05-25 广东美的制冷设备有限公司 Heat exchange device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4332293A (en) * 1980-04-30 1982-06-01 Nippondenso Co., Ltd. Corrugated fin type heat exchanger
CN1879003A (en) * 2003-11-14 2006-12-13 昭和电工株式会社 Evaporator and process for fabricating same
CN201387254Y (en) * 2009-03-19 2010-01-20 美的集团有限公司 Aluminum micro-channel heat exchanger
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
CN101706225A (en) * 2009-11-13 2010-05-12 三花丹佛斯(杭州)微通道换热器有限公司 Heat exchanger and fin thereof, as well as heat exchanging device comprising heat exchanger
CN201844616U (en) * 2010-10-19 2011-05-25 广东美的制冷设备有限公司 Heat exchange device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102853586A (en) * 2012-09-04 2013-01-02 广东美的制冷设备有限公司 Concurrent flow heat exchanger and air conditioner
CN102853586B (en) * 2012-09-04 2014-10-29 广东美的制冷设备有限公司 Concurrent flow heat exchanger and air conditioner
CN109974484A (en) * 2019-04-15 2019-07-05 合肥华凌股份有限公司 Heat exchanger and refrigeration equipment with it

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