CN219736050U - Heat exchanger - Google Patents
Heat exchanger Download PDFInfo
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- CN219736050U CN219736050U CN202321309234.5U CN202321309234U CN219736050U CN 219736050 U CN219736050 U CN 219736050U CN 202321309234 U CN202321309234 U CN 202321309234U CN 219736050 U CN219736050 U CN 219736050U
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- heat exchange
- heat exchanger
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- heat
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- 230000000694 effects Effects 0.000 abstract description 20
- 230000001965 increasing effect Effects 0.000 abstract description 6
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 description 11
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000002452 interceptive effect Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model belongs to the field of heat exchange devices, and provides a heat exchanger which comprises a heat exchange tube and a plurality of heat exchange plates; the heat exchange tubes are spirally wound into coils in the same plane, the number of the coils is multiple, and each coil is arranged at intervals along the vertical direction, wherein the output end of the coil of the upper one of two adjacent coils is communicated with the input end of the coil of the lower one of the two adjacent coils; each heat exchange plate is arranged on the coil pipes at intervals along the extending direction of the heat exchange pipe, and the same heat exchange plate is simultaneously connected with a plurality of coil pipes in the vertical direction. According to the heat exchanger, the heat exchange pipes are spirally wound into the coils with the same plane, so that the length of the heat exchange pipes can be prolonged as much as possible in a limited space, the heat exchange area and the heat exchange efficiency can be increased, and the heat exchange effect is better; through setting up a plurality of coils along the interval in the vertical direction, can realize multistage heat transfer, improve heat exchange efficiency, a plurality of coils are connected simultaneously to single heat exchanger piece in the vertical direction for this heat exchanger wholeness is good.
Description
Technical Field
The utility model relates to the field of heat exchange devices, in particular to a heat exchanger.
Background
The energy efficiency requirements of the systems are increasing, and higher performance heat exchangers are increasingly required. Generally, under the same conditions, the performance of the heat exchanger depends on the heat exchange efficiency, and the heat exchange efficiency has a direct relation with the heat exchange area, and the larger the heat exchange area is, the higher the heat exchange efficiency is in general.
The structure of the heat exchanger directly determines the size of the heat exchange area and the heat exchange efficiency. In the existing heat exchanger, the structure of the heat exchanger comprises S-shaped (S-shaped) heat exchange pipes and fins arranged on the heat exchange pipes, the heat exchange pipes are arranged in an S-shaped manner from one end to the other end, but the arrangement mode is such that the contact heat exchange between air flow and the heat exchanger is not uniform, so that the heat exchange effect is not ideal, the heat exchange efficiency is influenced, the S-shaped heat exchange pipes are required to achieve the ideal heat exchange effect, a relatively large space is required to be occupied, and in a compact space, the S-shaped heat exchange pipes are difficult to achieve the ideal heat exchange effect. Therefore, there is a need to develop a heat exchanger with good heat exchange effect and compact volume.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model aims to provide the heat exchanger with good heat exchange effect and compact structure.
The technical scheme adopted by the utility model is as follows: a heat exchanger comprises a heat exchange tube and a plurality of heat exchange plates;
the heat exchange tubes are spirally wound into coils in the same plane, the number of the coils is multiple, and each coil is arranged at intervals along the vertical direction, wherein the output end of the coil of the upper one of two adjacent coils is communicated with the input end of the coil of the lower one of the two adjacent coils;
each heat exchange plate is arranged on the coil pipes at intervals along the extending direction of the heat exchange pipe, and the same heat exchange plate is simultaneously connected with a plurality of coil pipes in the vertical direction.
According to the heat exchanger, the heat exchange tubes are spirally wound into the coils with the same plane, so that the length of the heat exchange tubes can be prolonged as much as possible in a limited space, the heat exchange area and the heat exchange efficiency can be increased, fluid in the heat exchange tubes flows along the spiral direction, the heat exchange is more uniform, the heat exchange effect is better, and the defects that the traditional S-shaped heat exchange tubes are good in heat exchange effect, poor in heat exchange effect and large in space occupation can be overcome; in addition, the plurality of coils are arranged at intervals along the vertical direction, so that multistage heat exchange can be realized, the heat exchange efficiency is improved, and in the two adjacent layers of coils, the tail end of the upper layer of coil is communicated with the head end of the lower layer of coil, so that the directions of fluid flow in the two adjacent coils are opposite, the alternating of cold and hot in the vertical direction can be realized, the heat exchange uniformity is further improved, and the heat exchange effect is further improved; because a plurality of coils are simultaneously connected to single heat exchanger piece in vertical direction for this heat exchanger wholeness is good, is favorable to reinforcing heat transfer effect, also can be convenient for heat exchanger piece and a plurality of coils assembly simultaneously.
In some embodiments, the plurality of coils are spirally wound from the same heat exchange tube.
The heat exchanger has good integrity, reduces the occurrence of joints, reduces the possibility of leakage of the heat exchange tubes, ensures that the tube walls among the coils are kept consistent with each other, and is beneficial to improving the uniformity of heat exchange.
In some embodiments, the number of coils is two, the two coils being spaced apart in the vertical direction, wherein the output end of the upper coil is disposed at the center of the spiral and the input end of the lower coil is disposed at the center of the spiral.
In some embodiments, the inlet and outlet of the heat exchange tube are both disposed at an end of the coil remote from the center of the spiral.
In some embodiments, the spiral center of the coil is provided with a central hole.
The central hole is formed in the spiral center of the coil pipe, so that on one hand, fluid outside the heat exchanger can circulate conveniently, the fluid outside the heat exchanger can be fully contacted with the heat exchange plate and the heat exchange pipe, and the heat exchange efficiency is improved; on the other hand, the heat exchange plate connected to the innermost ring of the coil can be prevented from interfering with other rings of the coil.
In some embodiments, the side surface of the heat exchange plate is convexly provided with a positioning part, and the positioning part is abutted with the adjacent heat exchange plate.
Through setting up location portion at the heat exchanger plate side, can conveniently fix a position when installing two adjacent heat exchanger plates and use to the clearance between two adjacent heat exchanger plates is confirmed to the assistance.
In some embodiments, the locating portion abuts the coil surface.
Through with location portion and coil pipe surface butt, can increase the area of contact between heat exchanger fin and the heat exchange tube, promote the heat transfer effect.
In some embodiments, the side edges of the heat exchanger plates are provided with void-avoidance grooves.
When the heat exchange plate is directly connected with one circle of the coil, in order to prevent the heat exchange plate from interfering with other adjacent circles of the coil, the side edges of the heat exchange plate are provided with empty-avoiding grooves
In some embodiments, the heat exchange tube has a cross-sectional shape that is circular, oval, elliptical, or polygonal.
In some embodiments, the fins are perpendicular to the centerline of the heat exchange tube.
Drawings
Fig. 1 is a schematic view of a heat exchanger according to a first embodiment of the present utility model;
FIG. 2 is a schematic view of the heat exchanger of FIG. 1 from another perspective;
FIG. 3 is a schematic view of a heat exchange tube in the heat exchanger shown in FIG. 1;
fig. 4 is a schematic view showing the structure of a heat exchanger according to a second embodiment of the present utility model;
FIG. 5 is a schematic view of the heat exchanger of FIG. 4 from another perspective;
in the figure: 100. a heat exchanger; 10. a heat exchange tube; 11. a coiled pipe; 111. a central bore; 20. a heat exchange plate; 21. and a positioning part.
100a, a heat exchanger; 10a, a heat exchange tube; 11a, coil pipe; 20a, heat exchange plates.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When the number of one element is referred to as being "plural," it may be any number of two or more. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Example 1
Referring to fig. 1 to 3, a heat exchanger 100 according to a first embodiment of the present utility model includes a heat exchange tube 10 and a plurality of heat exchange fins 20; the heat exchange tubes 10 are spirally wound into coils 11 in the same plane, the number of the coils 11 is multiple, and each coil 11 is arranged at intervals along the vertical direction, wherein the output end of the coil 11 of the upper one of the two adjacent coils 11 is communicated with the input end of the coil 11 of the lower one; each heat exchanger plate 20 is disposed on the coil 11 at intervals along the extending direction of the heat exchanger tube 10, and the same heat exchanger plate 20 is connected to a plurality of coils 11 simultaneously in the vertical direction. According to the heat exchanger 100, the heat exchange tubes 10 are spirally wound into the coils 11 with the same plane, so that the length of the heat exchange tubes 10 can be prolonged as much as possible in a limited space, the heat exchange area and the heat exchange efficiency can be increased, fluid in the heat exchange tubes 10 flows along the spiral direction, the heat exchange is more uniform, the heat exchange effect is better, and the defects that the traditional S-shaped heat exchange tubes 10 have good heat exchange effect and large space occupation at one end and poor heat exchange effect at the other end can be overcome; in addition, the plurality of coils 11 are arranged at intervals along the vertical direction, so that multistage heat exchange can be realized, the heat exchange efficiency is improved, and in the two adjacent layers of coils 11, the tail end of the upper layer of coils 11 is communicated with the head end of the lower layer of coils 11, so that the flowing directions of fluid in the two adjacent coils 11 are opposite, the alternating of cold and hot in the vertical direction can be realized, the heat exchange uniformity is further improved, and the heat exchange effect is improved; because the single heat exchange plate 20 is simultaneously connected with the plurality of coils 11 in the vertical direction, the heat exchanger 100 has good integrity, is beneficial to enhancing the heat exchange effect, and can be convenient for assembling the heat exchange plate 20 with the plurality of coils 11.
As shown in fig. 1, in the present embodiment, the cross-sectional shape of the heat exchange tube 10 is a circle, and in other embodiments, the cross-sectional shape of the heat exchange tube 10 may be a lumbar circle, an ellipse, or a polygon, and in the present utility model, the cross-sectional shape of the heat exchange tube 10 is not particularly limited. The heat exchange plates 20 are arranged on the outer surface of the coil 11 at intervals along the extending direction of the heat exchange tube 10, and the heat exchange plates 20 and the coil 11 can be combined together by one means of expansion joint, welding, bonding, welding, interference fit and the like, and the connection mode of the heat exchange plates 20 and the coil 11 is not particularly limited in the utility model. Preferably, the heat exchanger plates 20 are perpendicular to the centerline of the heat exchanger tube 10. In this embodiment, the heat exchanger fins 20 wrap only a portion of the outer wall of the coil 11.
In one embodiment, the plurality of coils 11 are spirally wound from the same heat exchange tube 10. The heat exchanger 100 has good integrity, the occurrence of joints is reduced, the possibility of leakage of the heat exchange tube 10 is reduced, and meanwhile, the same heat exchange tube 10 can ensure that the tube walls among the coils 11 are kept consistent, thereby being beneficial to improving the uniformity of heat exchange.
As shown in fig. 3, in this embodiment, the number of coils 11 is two, and the two coils 11 are arranged at intervals in the vertical direction, wherein the output end of the upper coil 11 is arranged at the center position of the spiral, and the input end of the lower coil 11 is arranged at the center position of the spiral. The inlet and outlet of the heat exchange tube 10 are both disposed at one end of the coil 11 remote from the center of the spiral. In other embodiments, the inlet and outlet of the heat exchange tube 10 may be disposed at the spiral center of the coil 11, and the outlet of the upper coil 11 and the inlet of the lower coil 11 are disposed at the ends of the coils 11 away from the center. In this embodiment, the flow direction of the fluid in the upper coil 11 is opposite to that of the fluid in the lower coil 11, so that the flow directions of the fluid in the upper and lower coils 11 are opposite, cold and hot alternation in the vertical direction can be realized, heat exchange uniformity is further improved, heat exchange effect is improved, and the whole volume of the heat exchanger 100 can be saved, so that the structure is more compact.
Preferably, the spiral center of the coil 11 is provided with a central hole 111. By arranging the central hole 111 in the spiral center of the coil 11, on one hand, fluid circulation outside the heat exchanger 100 can be facilitated, so that fluid outside the heat exchanger 100 can be fully contacted with the heat exchange plates 20 and the heat exchange tubes 10, and the heat exchange efficiency is improved; on the other hand, the heat exchange plate connected to the innermost ring of the coil 11 can be prevented from interfering with other rings of the coil 11.
As shown in fig. 2, alternatively, a positioning portion 21 is provided protruding from a side surface of the heat exchanger plate 20, and the positioning portion 21 abuts against an adjacent heat exchanger plate 20. By providing the positioning portions 21 on the side surfaces of the heat exchanger plates 20, positioning for mounting the adjacent two heat exchanger plates 20 can be facilitated to assist in determining the gap between the adjacent two heat exchanger plates 20. Further, the positioning portion 21 abuts against the surface of the coil 11. By abutting the positioning portion 21 against the surface of the coil 11, the contact area between the heat exchange plate 20 and the heat exchange tube 10 can be increased, and the heat exchange effect can be improved.
In one embodiment, the side edges of the heat exchanger plate 20 are provided with void-avoidance grooves. When the heat exchanger plate 20 is directly connected with only one circle of the coil 11, in order to prevent the heat exchanger plate 20 from interfering with the adjacent other circles of the coil 11, the side edges of the heat exchanger plate 20 are provided with empty-avoiding grooves
According to the heat exchanger 100, the heat exchange area can be increased as much as possible in a limited space by arranging the coiled pipe 11 spirally wound in multiple layers, so that the heat exchange efficiency per unit volume is improved, the whole structure is more compact, a three-dimensional spiral heat exchange structure can be formed, three-dimensional multi-stage heat exchange is realized, and the heat exchange efficiency and the heat exchange uniformity are improved. And a plurality of coils 11 are simultaneously connected with a single heat exchange plate 20 in the vertical direction, so that the heat exchanger 100 has good integrity, is beneficial to enhancing the heat exchange effect, and can be convenient for assembling the heat exchange plate 20 and the coils 11.
Example 2
Referring to fig. 4 and 5, a heat exchanger 100a according to a second embodiment of the present utility model is similar to the heat exchanger 100 of the first embodiment, in which the heat exchange tube 10a is in a oval shape (or an oblong shape) in cross section, and the heat exchange fins 20a wrap the outer wall of the coil 11a in whole circle.
Finally, it should be noted that the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited to the foregoing embodiments, but may be modified or substituted for some of the features described in the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. A heat exchanger (100) characterized by comprising a heat exchange tube (10) and a plurality of heat exchange fins (20);
the heat exchange tubes (10) are spirally wound into coils (11) on the same plane, the number of the coils (11) is multiple, and the coils (11) are arranged at intervals along the vertical direction, wherein the output end of the coil (11) of the upper one of the two coils (11) is communicated with the input end of the coil (11) of the lower one of the two coils (11);
each heat exchange plate (20) is arranged on the coil pipe (11) at intervals along the extending direction of the heat exchange pipe (10), and the same heat exchange plate (20) is connected with a plurality of coil pipes (11) at the same time in the vertical direction.
2. The heat exchanger (100) according to claim 1, wherein a plurality of the coils (11) are spirally wound with the same heat exchange tube (10).
3. The heat exchanger (100) according to claim 2, wherein the number of coils (11) is two, the two coils (11) being arranged at intervals in the vertical direction, wherein the output end of the upper coil (11) is arranged at the center of the spiral and the input end of the lower coil (11) is arranged at the center of the spiral.
4. A heat exchanger (100) according to claim 3, wherein the inlet and outlet of the heat exchange tube (10) are both arranged at the end of the coil (11) remote from the centre of the spiral.
5. The heat exchanger (100) according to claim 1, wherein the spiral centre of the coil (11) is provided with a centre hole (111).
6. The heat exchanger (100) according to claim 1, wherein the heat exchanger fins (20) are provided with protruding positioning portions (21) on their sides, the positioning portions (21) being in abutment with adjacent heat exchanger fins (20).
7. The heat exchanger (100) according to claim 6, wherein the positioning portion (21) abuts against a surface of the coil (11).
8. The heat exchanger (100) according to claim 1, wherein the side edges of the heat exchanger plates (20) are provided with void-avoidance grooves.
9. The heat exchanger (100) according to claim 1, wherein the heat exchange tube (10) has a cross-sectional shape of a circle, a lumbar circle, an ellipse or a polygon.
10. The heat exchanger (100) according to claim 1, wherein the heat exchanger fins (20) are perpendicular to the centre line of the heat exchange tube (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321309234.5U CN219736050U (en) | 2023-05-25 | 2023-05-25 | Heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321309234.5U CN219736050U (en) | 2023-05-25 | 2023-05-25 | Heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219736050U true CN219736050U (en) | 2023-09-22 |
Family
ID=88029600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321309234.5U Active CN219736050U (en) | 2023-05-25 | 2023-05-25 | Heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219736050U (en) |
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2023
- 2023-05-25 CN CN202321309234.5U patent/CN219736050U/en active Active
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