CN102235779A - Air-conditioning heat exchanger - Google Patents
Air-conditioning heat exchanger Download PDFInfo
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- CN102235779A CN102235779A CN2011102020237A CN201110202023A CN102235779A CN 102235779 A CN102235779 A CN 102235779A CN 2011102020237 A CN2011102020237 A CN 2011102020237A CN 201110202023 A CN201110202023 A CN 201110202023A CN 102235779 A CN102235779 A CN 102235779A
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- heat exchanger
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Abstract
The invention discloses an air-conditioning heat exchanger. The heat exchanger comprises a fin and a plurality of U-shaped tubes which are parallelly inserted into the fin, wherein each U-shaped tube comprises two free ends which parallelly extend in the same direction, and a bending part positioned between the two free ends; the free ends are inserted into the fin; the ports of the free ends of adjacent U-shaped tubes are connected through bridging bends; the U-shaped tubes at the two ends of the heat exchanger are connected with a compressor and a throttling part respectively; and each U-shaped tube has the external diameter of 4.9 to 5.1mm, the wall thickness of 0.18 to 0.22mm and the tooth height of 0.12 to 0.16mm. By adjusting the structure of the heat exchanger, the air-conditioning heat exchanger has a more compact structure; compared with the conventional phi7 tube heat exchanger, the air-conditioning heat exchanger has the advantages that: a single U-shaped copper tube is about 25 percent lighter than the original phi7 tube with the reduction of the tube diameter of the U-shaped copper tube on the premise of keeping the length of the single U-shaped copper tube unchanged, the weight of the fin is reduced by about 20 percent, and the material cost of the heat exchanger is reduced by about 20 percent; meanwhile, heat exchange quantity is kept equivalent to that of the original phi7 tube heat exchanger on the premise of reducing the weight of the copper tube and the fin, and the refrigeration energy efficiency (energy efficiency ratio EER) and heating energy efficiency (coefficient of performance COP) of the whole heat exchanger are the same as those of the original heat exchanger.
Description
Technical field
The present invention relates to the air-condition heat exchanger field, particularly a kind of improvement of air-condition heat exchanger.
Background technology
Current, country advocates energy-saving and emission-reduction, builds low-carbon (LC) society.The raw material of domestic air conditioner are mainly copper aluminium etc., and they all are main power consumption resources.In general, air-conditioning copper consumption accounting is big, and along with the copper material price rises, the cost of raw material goes up, the corresponding raising of the manufacturing cost of complete machine.Therefore, air-conditioning producer reduces the copper aluminium consumption of air-conditioner itself by technological improvement, will be the energy conservation project of benefiting the nation and the people.
For present most of family expenses split-type air conditioners, the off-premises station heat exchanger uses the fin-type heat exchanger of U type pipe caliber as Φ 9.52 or Φ 7 mostly.This type of heat exchanger is continued to use for many years.But in the application of air-conditioner, use U type pipe caliber to have the defective that heat exchange area is excessive, the part heat exchange area does not make full use of as the heat exchanger of the U type pipe of Φ 9.52 or Φ 7.Be that U type pipe caliber is that the heat exchanger structure of U type pipe of Φ 9.52 or Φ 7 is not compact, caused the waste of material of heat exchanger itself.Shown in Fig. 3 and 4, having introduced U type pipe caliber is the heat exchanger of Φ 7, totally 6 of copper cross-over connection elbow 35(that comprise fin 31 and pass the single U type pipe 32, air inlet pipe 33 of fin 31 inner chambers, distribute and be welded on U type pipe mouth of pipe two ends according to stream), totally 2 of cross-over connection elbow 36(), drain pipe 37 and fixedly the technology reinforced pipe 34 and the technology reinforced pipe 38 of air inlet pipe 33 and drain pipe 37.Wherein, the tube pitch of cross-over connection elbow 36 is 2 times of cross-over connection elbow 35, does not insert U type pipe 32 between the two-port of cross-over connection elbow 36.The structure of this heat exchanger is bigger, and heat exchange area is big, causes waste easily.
In sum, the weak point that exists of present air-condition heat exchanger is: U type pipe caliber is excessive to cause using the excessive and part heat exchange area of this heat exchanger heat exchange area not make full use of.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, provides a kind of U of reducing type pipe caliber to make this heat exchanger structure compact and make full use of the air-condition heat exchanger of heat exchange area.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of air-condition heat exchanger, comprise the U-shaped pipe in fin and the some parallel insertion fins, described U-shaped pipe comprises two free ends and the bend between two free ends that cocurrent and parallel extends, described free end inserts in the fin, be connected by the cross-over connection elbow between the free end port of described adjacent U-shaped pipe, the U-shaped pipe at these heat exchanger two ends is connected with compressor exhaust pipe and throttle part respectively; The external diameter of described U-shaped pipe is 4.9～5.1mm, and wall thickness is 0.18～0.22mm, and tooth depth is 0.12～0.16mm.
Preferably, the quantity of described U-shaped pipe is 11, and the quantity of then described cross-over connection elbow is 10.
Preferably, described cross-over connection elbow comprises big cross-over connection elbow and little cross-over connection elbow; In described 11 U-shaped pipes that be arranged in parallel, be connected by 1 big cross-over connection elbow between the free end port of the adjacent U-shaped pipe of two-phase in the middle of it; Other 9 cross-over connection elbows are little cross-over connection elbow.
Preferably, the cross-over connection spacing of described big cross-over connection elbow is the twice of the cross-over connection spacing of little cross-over connection elbow.
Preferably, described cross-over connection elbow is the copper pipe, and the external diameter of described little cross-over connection elbow is 4.9-5.1mm.
Preferably, the U-shaped pipe of described heat exchanger one end is connected with the blast pipe of compressor by air inlet pipe, and the U-shaped pipe of the other end is connected with throttle part by drain pipe.
The main body external diameter of described air inlet pipe is 6.9-7.1mm, and the main body external diameter of described drain pipe is 6.9-7.1mm.
Preferably, the output of described air inlet pipe is the copper pipe of band reducing; Described reducing section external diameter is 4.4-4.6mm, and internal diameter is 2.9-3.1mm, and length is 12-15mm; The output of described air inlet pipe is fixed on the adjacent cross-over connection elbow by the first technology reinforced pipe.
Preferably, another of the U-shaped pipe at heat exchanger two ends is connected with throttle part by drain pipe, and the main body external diameter of described drain pipe is 6.9-7.1mm.
Preferably, the input of described drain pipe is the copper pipe of band reducing, and described reducing section external diameter is 4.4-4.6mm, and internal diameter is 2.9-3.1mm, and length is 12-15mm; The input of described drain pipe is fixed on the adjacent cross-over connection elbow by the second technology reinforced pipe.
Preferably, the sheet of described fin is wide to be 10.9-11.1mm, and pitch-row is 18.9-19.1 mm, and thickness is 0.104-0.106mm.
In sum, the present invention has following beneficial effect with respect to prior art:
1, air-condition heat exchanger of the present invention is by the adjustment of heat exchanging device structure, compare with existing Φ 7 heats exchange of heat pipe, keeping under the constant prerequisite of single U type copper pipe length, along with U type copper pipe caliber reduces, in light weight about 25% of former Φ 7 pipes of the weight ratio of single U type copper pipe, fin is in light weight about 20%, and the material cost of heat exchanger itself reduces about 20%;
2, heat exchanger of the present invention can be under the prerequisite that reduces above-mentioned copper pipe and fin weight, and it is suitable with the heat exchange amount of former Φ 7 heats exchange of heat pipe that the heat exchange amount keeps, and the refrigeration efficiency of complete machine (EER) and to heat efficiency (COP) same fair with former organic type;
3, air-condition heat exchanger of the present invention makes the structure of heat exchanger compact more by the adjustment of heat exchanging device structure.
Description of drawings
Fig. 1 is an air-conditioner heat exchanger structure schematic diagram of the present invention;
Fig. 2 is air-condition heat exchanger of the present invention refrigerant flow direction schematic diagram when air-conditioner freezes;
Fig. 3 is the former air-conditioner heat exchanger structure schematic diagram of Φ 7 for U shape pipe caliber;
Fig. 4 is former air-condition heat exchanger refrigerant flow direction schematic diagram when air-conditioner freezes of Φ 7 for U-shaped pipe caliber.
The specific embodiment
The present invention is described in further detail below in conjunction with embodiment and accompanying drawing, but embodiments of the present invention are not limited thereto.
As shown in Figure 1, a kind of air-condition heat exchanger comprises the U-shaped pipe 2 in fin 1 and the some parallel insertion fins 1.This U-shaped pipe 2 comprises two free ends 21 and the bend 22 between two free ends 21 that cocurrent and parallel extends.This free end 21 inserts in the fin 1, and is connected by cross-over connection elbow 5 between free end 21 ports of adjacent U-shaped pipe, and the U-shaped pipe at these heat exchanger two ends is connected with compressor and throttle part respectively.The external diameter of this U-shaped pipe 2 is 4.9～5.1mm, and wall thickness is 0.18～0.22mm, and tooth depth is 0.12～0.16mm.。
In the present embodiment, the quantity of U-shaped pipe is 11, and correspondingly, the quantity that is used to connect the cross-over connection elbow 3 of adjacent U-shaped pipe is 10.In these 10 cross-over connection elbows, comprise 1 big cross-over connection elbow 51 and 9 little cross-over connection elbows 52.The free end port of two adjacent U-shaped pipes between this 1 big cross-over connection elbow 51 is used to connect among 11 U-shaped pipes.The cross-over connection spacing of this big cross-over connection elbow 51 is twices of the cross-over connection spacing of little cross-over connection elbow 52.And this cross-over connection elbow 5 is the copper pipe, and the external diameter of this little cross-over connection elbow 52 is 4.9-5.1mm.
In sum, a plurality of U-shaped pipes of heat exchanger form the passage of the serpentine coil formula that head and the tail communicate by the cross-over connection elbow.
The U-shaped pipe of this heat exchanger one end is connected with the blast pipe of compressor by air inlet pipe 3, and the U-shaped pipe of the other end is connected with throttle part by drain pipe 7.The main body external diameter of this air inlet pipe 3 is 6.9-7.1mm, and the main body external diameter of this drain pipe 7 is 6.9-7.1mm.The output 31 of this air inlet pipe 3 is the copper pipe of band reducing; This reducing section external diameter is 4.4-4.6mm, and internal diameter is 2.9-3.1mm, and length is 12-15mm.And the output 31 of this air inlet pipe 3 is fixed on the adjacent cross-over connection elbow by the first technology reinforced pipe 4.The input 71 of this drain pipe 7 is the copper pipe of band reducing, and this reducing section external diameter is 4.4-4.6mm, and internal diameter is 2.9-3.1mm, and length is 12-15mm.The input 71 of this drain pipe 7 is fixed on the adjacent cross-over connection elbow by the second technology reinforced pipe 8.
Further, in this improvement, the specification of fin 1 has been done certain restriction.The sheet of this fin 1 is wide to be 10.9-11.1mm, and pitch-row is 18.9-19.1 mm, and thickness is 0.104-0.106mm.
As shown in Figure 2, be the refrigerant flow direction schematic diagram (arrow is represented the flow direction of cold-producing medium) of heat exchanger of the present invention.When air conditioner refrigerating, the refrigerant gas of discharging from compressor exhaust pipe enters the U type pipe 2 through air inlet pipe 3.Be connected by cross-over connection elbow (comprising little cross-over connection elbow 51 and big cross-over connection elbow 52) between the adjacent U type pipe 2.So passage of the serpentine coil formula that head and the tail of its formation communicate.Cold-producing medium just flows through whole heat exchanger along above-mentioned U type tube passage after entering U type pipe 2 by air inlet pipe 3 successively, and with carrying out heat exchange in the external world.So cold-producing medium at last by drain pipe 7 outflow heat exchangers, arrives throttle part gradually by the gaseous state liquefy.Carry out heat exchange through the air that flows into indoor evaporator and indoor environment after the throttle part throttling, cold-producing medium becomes gaseous state again.Then, the gaseous refrigerant that flows out from evaporimeter is sucked back by outdoor compressor, and compression is discharged to outdoor condenser again and carries out heat exchange again, finishes a complete kind of refrigeration cycle.
The foregoing description is preferred embodiment of the present invention only, is not to be used for limiting practical range of the present invention.Be that all equalizations of doing according to content of the present invention change and modification, all contained by claim of the present invention scope required for protection.
Claims (10)
1. air-condition heat exchanger, comprise the U-shaped pipe (2) in fin (1) and the some parallel insertion fins (1), described U-shaped pipe (2) comprises two free ends (21) that cocurrent and parallel extends and is positioned at bend (22) between two free ends (21), described free end (21) inserts in the fin (1), be connected by cross-over connection elbow (5) between the free end of described adjacent U-shaped pipe (21) port, the U-shaped pipe at these heat exchanger two ends is connected with compressor and throttle part respectively; It is characterized in that: the external diameter of described U-shaped pipe (2) is 4.9～5.1mm, and wall thickness is 0.18～0.22mm, and tooth depth is 0.12～0.16mm.
2. air-condition heat exchanger according to claim 1 is characterized in that: the quantity of described U-shaped pipe (2) is 11, and the quantity of then described cross-over connection elbow is 10.
3. air-condition heat exchanger according to claim 2 is characterized in that: described cross-over connection elbow (5) comprises big cross-over connection elbow (51) and little cross-over connection elbow (52); In described 11 U-shaped pipes that be arranged in parallel, be connected by 1 big cross-over connection elbow (51) between the free end port of the adjacent U-shaped pipe of two-phase in the middle of it; Other 9 cross-over connection elbows are little cross-over connection elbow (52).
4. air-condition heat exchanger according to claim 4 is characterized in that: the cross-over connection spacing of described big cross-over connection elbow (51) is the twice of the cross-over connection spacing of little cross-over connection elbow (52).
5. air-condition heat exchanger according to claim 3 is characterized in that: described cross-over connection elbow (5) is the copper pipe, and the external diameter of described little cross-over connection elbow (52) is 4.9-5.1mm.
6. according to each described air-condition heat exchanger of claim 1-5, it is characterized in that: the U-shaped pipe of described heat exchanger one end is connected with the blast pipe of compressor by air inlet pipe (3), and the U-shaped pipe of the other end is connected with throttle part by drain pipe (7).
7. air-condition heat exchanger according to claim 6 is characterized in that: the main body external diameter of described air inlet pipe (3) is 6.9-7.1mm, and the main body external diameter of described drain pipe (7) is 6.9-7.1mm.
8. air-condition heat exchanger according to claim 7 is characterized in that: the output (31) of described air inlet pipe (3) is the copper pipe of band reducing; Described reducing section external diameter is 4.4-4.6mm, and internal diameter is 2.9-3.1mm, and length is 12-15mm; The output (31) of described air inlet pipe (3) is fixed on the adjacent cross-over connection elbow by the first technology reinforced pipe (4).
9. air-condition heat exchanger according to claim 7 is characterized in that: the input (71) of described drain pipe (7) is the copper pipe of band reducing, and described reducing section external diameter is 4.4-4.6mm, and internal diameter is 2.9-3.1mm, and length is 12-15mm; The input (71) of described drain pipe (7) is fixed on the adjacent cross-over connection elbow by the second technology reinforced pipe (8).
10. air-condition heat exchanger according to claim 1 is characterized in that: the sheet of described fin (1) is wide to be 10.9-11.1mm, and pitch-row is 18.9-19.1 mm, and thickness is 0.104-0.106mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110202023 CN102235779B (en) | 2011-07-19 | 2011-07-19 | Air-conditioning heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110202023 CN102235779B (en) | 2011-07-19 | 2011-07-19 | Air-conditioning heat exchanger |
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| Publication Number | Publication Date |
|---|---|
| CN102235779A true CN102235779A (en) | 2011-11-09 |
| CN102235779B CN102235779B (en) | 2013-07-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110202023 Expired - Fee Related CN102235779B (en) | 2011-07-19 | 2011-07-19 | Air-conditioning heat exchanger |
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| Country | Link |
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| CN (1) | CN102235779B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104596156A (en) * | 2015-02-04 | 2015-05-06 | 天津商业大学 | Row-depth-variable fin heat exchanger |
| CN105890050A (en) * | 2016-06-03 | 2016-08-24 | 南京师范大学 | Internal descaling and external defrosting novel air conditioner applying ultrasonic oscillators |
Citations (7)
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| WO2005057120A1 (en) * | 2003-12-15 | 2005-06-23 | Usui Kokusai Sangyo Kaisha, Ltd. | Heat exchanger |
| CN1936484A (en) * | 2006-06-30 | 2007-03-28 | 广东科龙电器股份有限公司 | Efficient skew-inserted air-cooling-tube finned heat exchanger |
| JP2008020150A (en) * | 2006-07-14 | 2008-01-31 | Kobelco & Materials Copper Tube Inc | Return bend tube, and fin and tube type heat exchanger |
| CN201302331Y (en) * | 2008-10-17 | 2009-09-02 | 铜联商务咨询（上海）有限公司 | Heat exchanger of copper pipe with diameter of 4 mm |
| CN101614455A (en) * | 2008-06-24 | 2009-12-30 | Tcl集团股份有限公司 | A kind of heat exchanger |
| CN201503174U (en) * | 2009-09-14 | 2010-06-09 | 珠海格力电器股份有限公司 | Heat exchanger for air conditioner |
| CN202382486U (en) * | 2011-07-19 | 2012-08-15 | 海信科龙电器股份有限公司 | Air conditioner heat exchanger |
-
2011
- 2011-07-19 CN CN 201110202023 patent/CN102235779B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005057120A1 (en) * | 2003-12-15 | 2005-06-23 | Usui Kokusai Sangyo Kaisha, Ltd. | Heat exchanger |
| CN1936484A (en) * | 2006-06-30 | 2007-03-28 | 广东科龙电器股份有限公司 | Efficient skew-inserted air-cooling-tube finned heat exchanger |
| JP2008020150A (en) * | 2006-07-14 | 2008-01-31 | Kobelco & Materials Copper Tube Inc | Return bend tube, and fin and tube type heat exchanger |
| CN101614455A (en) * | 2008-06-24 | 2009-12-30 | Tcl集团股份有限公司 | A kind of heat exchanger |
| CN201302331Y (en) * | 2008-10-17 | 2009-09-02 | 铜联商务咨询（上海）有限公司 | Heat exchanger of copper pipe with diameter of 4 mm |
| CN201503174U (en) * | 2009-09-14 | 2010-06-09 | 珠海格力电器股份有限公司 | Heat exchanger for air conditioner |
| CN202382486U (en) * | 2011-07-19 | 2012-08-15 | 海信科龙电器股份有限公司 | Air conditioner heat exchanger |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104596156A (en) * | 2015-02-04 | 2015-05-06 | 天津商业大学 | Row-depth-variable fin heat exchanger |
| CN104596156B (en) * | 2015-02-04 | 2016-09-14 | 天津商业大学 | Become and arrange deep finned heat exchanger |
| CN105890050A (en) * | 2016-06-03 | 2016-08-24 | 南京师范大学 | Internal descaling and external defrosting novel air conditioner applying ultrasonic oscillators |
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| Publication number | Publication date |
|---|---|
| CN102235779B (en) | 2013-07-24 |
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Granted publication date: 20130724 Termination date: 20210719 |