CN101377366A - Special-shaped tube heat exchanger - Google Patents
Special-shaped tube heat exchanger Download PDFInfo
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- CN101377366A CN101377366A CNA2008100637921A CN200810063792A CN101377366A CN 101377366 A CN101377366 A CN 101377366A CN A2008100637921 A CNA2008100637921 A CN A2008100637921A CN 200810063792 A CN200810063792 A CN 200810063792A CN 101377366 A CN101377366 A CN 101377366A
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- coil pipe
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Abstract
The invention belongs to the technical field of air-conditioning, in particular to a heteromorphic pipe heat exchanger used as an air-conditioning heat exchanger. The prior air-conditioning heat exchangers adopt coils of round cross-section and are limited the air flow resistance and contact areas of coils with fins, therefore, the heat exchange efficiency of heat exchangers is low, and the energy saving effect of air-conditioning in actual use is poor. The invention provides a special pipe heat exchanger with larger contact surface of the coil and the fins, small air flow resistance and good air-cooled effect. The special pipe heat exchanger which consists of a serpentuator wreathed reciprocally and a plurality of parallel fins arranged in the lengthwise direction of the coil; the shape of the cross section of the coil is a central symmetry heteromorphic shape, and has a long shaft and a short shaft which are vertical to each other and run across the center. The shapes of the cross-section of the coil of the invention is changed, the contact area of the coil with the coolant medium and the fins is enlarged via the heteromorphic pipe, the velocity of the cooling air across the surface of the coil is increased, the heat exchange effect is improved, the overall heat exchange efficiency of the heat exchanger is enhanced, and the air-conditioning saves more energy.
Description
[affiliated technical field]
The invention belongs to air-conditioning technical field, particularly a kind of special-shaped tube heat exchanger that uses as air-condition heat exchanger.
[background technology]
The fin-tube type heat exchanger structure that tradition is used on the air-conditioning comprise back and forth around serpentine coil, its length direction of coil pipe upper edge is installed some parallel radiating fins, the refrigerant medium that flows in the coil pipe during use transmits by the contact heat of coil pipe and fin, heat transferred fin with refrigerant in the pipe, by the wind-cooling heat dissipating of fin, reach the heat exchange purpose again.Because be subjected to the restriction of air flow resistance and coil pipe and fin contact area, the fin-tube type heat exchanger heat exchange efficiency of traditional round cross section coil pipe is low, so energy-saving effect is poor during the actual use of air-conditioning.
[summary of the invention]
The technical assignment of the technical problem to be solved in the present invention and proposition is the technological deficiency that overcomes the conventional tube fin heat exchanger, provide a kind of coil pipe and fin contact-making surface to connect bigger, the good special-shaped tube heat exchanger of the little air cooling effect of air flow resistance, described special-shaped tube heat exchanger heat exchange efficiency height uses energy-saving effect better on air-conditioning.
Technical solution problem of the present invention adopts following technical scheme: special-shaped tube heat exchanger, comprise back and forth around serpentine coil and some parallel fins of installing along the coil lengths direction, it is characterized in that described coil pipe cross sectional shape is a center symmetry abnormity, crossing central point has orthogonal long and short axle.By center symmetry and to contain the cross sectional shape enlarged surface of major and minor axis long-pending, refrigerant medium and coil pipe inwall contact area are increased, the also corresponding increase of coil pipe outer wall simultaneously with the fin contact area, both actings in conjunction strengthen the heat exchange effect, effectively improve the heat exchange efficiency of heat exchanger, more energy-conservation when making air-conditioner work.
Coil pipe cross sectional shape of the present invention is oval.The ellipse that with the round diameter is minor axis length has bigger girth than this circle, and the contact area of the inside and outside wall of the coil pipe of formation and refrigerant medium and fin is all bigger than corresponding circle cross section coil pipe, helps to improve heat exchange efficiency.Oval-shaped streamlined outer surface helps to reduce resistance and improves the air velocity that the surface is skimmed over when air-cooled, strengthens the whole heat exchange effect of heat exchanger.Can further improve coil pipe outer surface air velocity perpendicular to finned length direction installation coil pipe in actual the use as with oval major axis, air-cooled air moves ahead along the transverse direction and flows through fairshaped coil pipe outer surface, good effect of heat exchange fast.
Coil pipe cross sectional shape of the present invention is tetragonal flat hole, and described quadrangle is connected and composed by two groups of perpendicular parallel long, minor faces, and long and short limit linkage section is a circular arc.The perimeter of section in flat hole is big, and the contact area of the inside and outside wall of the coil pipe of formation and refrigerant medium and fin is all bigger than the circular section coil pipe that with flat hole minor axis length is diameter, helps to improve heat exchange efficiency.The circular arc linkage section helps to reduce resistance and improves coil pipe outer surface air velocity, strengthens the heat exchange effect of heat exchanger integral body.As making flat hole horizontal perpendicular to the finned length direction on tetragonal long limit, connect the surface in conjunction with circular arc and all help to improve coil pipe outer surface air velocity in actual the use, strengthen the heat exchange effect.
Coil pipe cross sectional shape of the present invention is a rhombus.The rhombus girth of making minor axis with round diameter is circular big, and the heat exchange area of the inside and outside wall correspondence of coil pipe increases, the heat exchange efficiency height.The streamlined outer surface of rhombus helps to reduce resistance and improves the air velocity that the surface is skimmed over when air-cooled, strengthens the whole heat exchange effect of heat exchanger.In actual the use as make rhombus horizontal perpendicular to the finned length direction rhombus major axis, the flow velocity in the time of can effectively improving air and flow through the coil pipe outer surface strengthens the heat exchange effect.
Be provided with the waveform dividing plate in the coil pipe of the present invention, described dividing plate both sides are connected on the coil pipe inwall.The waveform dividing plate is separated into some little separate spaces with the coil pipe inner chamber, the refrigerant medium is divided into multistage and flows respectively in each little separate space, contact with baffle surface and to carry out heat exchange, dividing plate carries out the heat conduction by being connected with the coil pipe inwall, further strengthen the heat exchange effect of refrigerant medium and coil pipe, improve the whole heat exchange efficiency of heat exchanger.
The upper and lower end that waveform dividing plate of the present invention rises and falls all is connected on the coil pipe inwall.The contact area that increases dividing plate and coil pipe that is connected by upper and lower end and coil pipe inwall strengthens heat-transfer effect.
Be arranged side by side some interior pipes near adjacency in the coil pipe of the present invention, described interior circular tube external wall is connected with the coil pipe inwall is tangent.Refrigerant medium during work in the coil pipe is except that directly with coil pipe contacts, also contact with interior pipe, connect the heat conduction of carrying out by interior pipe and coil pipe again and further strengthen heat exchange effect between refrigerant medium and the coil pipe, effective than refrigerant medium and the single contact heat-exchanging of coil pipe inwall.Adjacent that cold media matter and interior pipe heat are transmitted is more even abundant near connecting for pipes in some.
Be provided with pipe in the coil pipe of the present invention, described interior circular tube external wall is connected with the coil pipe inwall is tangent.Refrigerant medium during work in the coil pipe is except that directly with coil pipe contacts, also contact with interior pipe, connect the heat conduction of carrying out by interior pipe and coil pipe again and further strengthen heat exchange effect between refrigerant medium and the coil pipe, effective than refrigerant medium and the single contact heat-exchanging of coil pipe inwall.
Pipe is the internal thread pipe in of the present invention.Internal thread pipe surface is threaded, help to slow down flow through in the refrigerant velocity of medium of pipe, prolong the heat-exchange time on refrigerant medium and pipe surface, improve heat exchange efficiency, strengthen the heat exchange effect.
The present invention is by changing the coil pipe cross sectional shape, the special pipe that differs from the traditional round tee section by ellipse, rhombus etc. increases the contact area of coil pipe and refrigerant medium, fin, improve air-cooled air at coil pipe outer surface flow velocity, improve the heat exchange effect, heat exchange efficiency when improving the heat exchanger overall work is realized the energy conservation of air-conditioning.In addition, can also reduce number of fins, reduce air flow resistance simultaneously, save the raw material aluminium of making fin by increasing spacing of fin; The tube pitch minimizing coil lengths of the coil pipe by increasing oval and the two kinds of structures in flat hole reduces air flow resistance simultaneously, and copper material economizes in raw materials.
[description of drawings]
Fig. 1: the embodiment of the invention 1 schematic diagram.
A-A of Fig. 2: Fig. 1 is to cutaway view.
Fig. 3: embodiment 1 coil arrangement schematic diagram.
Fig. 4: embodiment 2 coil arrangement schematic diagrames.
Fig. 5: embodiment 3 coil arrangement schematic diagrames.
Fig. 6: embodiment 4 coil arrangement schematic diagrames.
Fig. 7: embodiment 5 coil arrangement schematic diagrames.
Fig. 8: embodiment 6 coil arrangement schematic diagrames.
Fig. 9: embodiment 7 coil arrangement schematic diagrames.
Coil arrangement schematic diagram shown in Figure 10: the embodiment 8.
Among the figure: 1. fin, 2. coil pipe, 3. in pipe, 4. dividing plate.
[specific embodiment]
The present invention will be further described below in conjunction with description of drawings and the specific embodiment.
The embodiment of the invention 1 is shown in Fig. 1～3, special-shaped tube heat exchanger comprise back and forth around serpentine coil 2 and some parallel fins 1 of installing along the coil lengths direction, the coil pipe cross section is oval, oval major axis is perpendicular to the finned length direction, be arranged side by side three interior pipes 3 near adjacency (internal thread pipe) in the coil pipe, circular tube external wall is connected with the coil pipe inwall is tangent.
Embodiment 5 as shown in Figure 7 and embodiment 4 differences be to be provided with in the coil pipe 2 waveform dividing plate 4, the dividing plate both sides are connected on the arc section of coil pipe 2 inner wall sections, the upper and lower end that dividing plate 4 rises and falls all is connected on the long limit of coil pipe 2 inner wall sections.
Embodiment 7 as shown in Figure 9 and embodiment 1 difference be that coil pipe 2 cross sections are rhombus, the major axis of rhombus is provided with an interior pipe 3 (internal thread pipe) perpendicular to the finned length direction in the coil pipe 2, interior circular tube external wall is connected with the coil pipe inwall is tangent.
Embodiment 8 as shown in figure 10 and embodiment 7 differences be to be provided with in the coil pipe 2 waveform dividing plate 4, described dividing plate both sides are connected on coil pipe 2 inwalls.
Claims (10)
1, special-shaped tube heat exchanger, comprise back and forth around serpentine coil (2) and some parallel fins (1) of installing along the coil lengths direction, it is characterized in that described coil pipe cross sectional shape is a center symmetry abnormity, crossing central point has orthogonal long and short axle.
2, special-shaped tube heat exchanger according to claim 1 is characterized in that described coil pipe cross sectional shape is for oval.
3, special-shaped tube heat exchanger according to claim 1 is characterized in that described coil pipe cross sectional shape is tetragonal flat hole, and described quadrangle is connected and composed by two groups of perpendicular parallel long, minor faces, and long and short limit linkage section is a circular arc.
4, special-shaped tube heat exchanger according to claim 1 is characterized in that described coil pipe cross sectional shape is a rhombus.
5, according to claim 1 or 2 or 3 or 4 described special-shaped tube heat exchangers, it is characterized in that being provided with in the described coil pipe (2) waveform dividing plate (4), described dividing plate both sides are connected on coil pipe (2) inwall.
6, special-shaped tube heat exchanger according to claim 5 is characterized in that the upper and lower end that described waveform dividing plate (4) rises and falls all is connected on coil pipe (2) inwall.
7, special-shaped tube heat exchanger according to claim 2 is characterized in that being arranged side by side in the described coil pipe (2) some interior pipes (3) near adjacency, and described interior circular tube external wall is connected with the coil pipe inwall is tangent.
8, according to claim 3 or 4 described special-shaped tube heat exchangers, it is characterized in that being provided with in the described coil pipe (2) pipe (3) in, described interior circular tube external wall is connected with the coil pipe inwall is tangent.
9, special-shaped tube heat exchanger according to claim 7 is characterized in that described interior pipe (3) is the internal thread pipe.
10, special-shaped tube heat exchanger according to claim 8 is characterized in that described interior pipe (3) is the internal thread pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100637921A CN101377366A (en) | 2008-07-31 | 2008-07-31 | Special-shaped tube heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100637921A CN101377366A (en) | 2008-07-31 | 2008-07-31 | Special-shaped tube heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101377366A true CN101377366A (en) | 2009-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100637921A Pending CN101377366A (en) | 2008-07-31 | 2008-07-31 | Special-shaped tube heat exchanger |
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| Country | Link |
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| CN (1) | CN101377366A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102724853A (en) * | 2012-06-28 | 2012-10-10 | 青岛海信日立空调系统有限公司 | Flat-pipe microchannel aluminum radiator |
| CN114483316A (en) * | 2021-12-31 | 2022-05-13 | 北京动力机械研究所 | Large-temperature-difference heat exchanger with deformation coordination function |
-
2008
- 2008-07-31 CN CNA2008100637921A patent/CN101377366A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102724853A (en) * | 2012-06-28 | 2012-10-10 | 青岛海信日立空调系统有限公司 | Flat-pipe microchannel aluminum radiator |
| CN114483316A (en) * | 2021-12-31 | 2022-05-13 | 北京动力机械研究所 | Large-temperature-difference heat exchanger with deformation coordination function |
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