CN110849194B - Heat exchange tube, heat exchanger, heat exchange system and manufacturing method of heat exchange tube - Google Patents
Heat exchange tube, heat exchanger, heat exchange system and manufacturing method of heat exchange tube Download PDFInfo
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- CN110849194B CN110849194B CN201810955482.4A CN201810955482A CN110849194B CN 110849194 B CN110849194 B CN 110849194B CN 201810955482 A CN201810955482 A CN 201810955482A CN 110849194 B CN110849194 B CN 110849194B
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- 238000004519 manufacturing process Methods 0.000 title claims description 12
- 239000003507 refrigerant Substances 0.000 claims abstract description 56
- 238000004080 punching Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 description 5
- 238000005219 brazing Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a heat exchange tube, a heat exchanger and a heat exchange system, wherein the heat exchange tube comprises: the heat exchange tube comprises a main body section, a tail section and a connecting section for connecting the main body section and the tail section, wherein the heat exchange tube is provided with a plurality of refrigerant channels, the refrigerant channels penetrate through the main body section, the tail section and the connecting section, the heat exchange tube is provided with a width direction, and the distance between two refrigerant channels which are farthest from the tail section along the width direction is smaller than the distance between two refrigerant channels which are farthest from two sides of the main body section. On the premise of ensuring the compressive strength, the inner diameter and the outer diameter of the collecting pipe are reduced by adopting the necking mode at the tail section, and the volume and the weight of the collecting pipe can be reduced, so that the volume of the collecting pipe is reduced, the refrigerant filling amount of a heat exchange system is reduced, and the safety of the heat exchange system is improved.
Description
Technical Field
The present invention relates to the field of heat exchange technology, and in particular, to a heat exchange tube, a heat exchanger, a heat exchange system, and a method for manufacturing the heat exchange tube.
Background
With the development of heat exchange technology, the requirements on the size and weight of the heat exchange tube and the heat exchange device and the refrigerant filling amount of the system are more and more strict, so that the heat exchange device with smaller size and weight is required to be developed. There is room for improvement in heat exchange tubes of the related art.
Disclosure of Invention
According to a first aspect of an embodiment of the present invention, there is provided a heat exchange tube including: the heat exchange tube comprises a main body section, a tail section and a connecting section for connecting the main body section and the tail section, wherein the heat exchange tube is provided with a plurality of refrigerant channels, the refrigerant channels penetrate through the main body section, the tail section and the connecting section, the heat exchange tube is provided with a width direction, and the distance between two refrigerant channels which are farthest from the tail section along the width direction is smaller than the distance between two refrigerant channels which are farthest from two sides of the main body section.
Optionally, the end section is in a circular arc structure, the cross section of the end section along the width direction is circular arc, the main body section is a straight section, and the cross section of the main body section along the width direction is in a straight shape.
Optionally, the circumferential angle range corresponding to the cross section of the end section along the width direction is 10-350 degrees.
Optionally, the circumferential angle corresponding to the cross section of the end section along the width direction ranges from 90 ° to 180 °.
Optionally, the width dimension of the end segment is less than or equal to the diameter or equivalent diameter of the header.
Optionally, the engagement section is a necked section, wherein the engagement section has a reduced width along an extension direction of the main body section toward the end section.
Optionally, the engagement section has an increasing height in the direction of the main body section towards the end section.
Optionally, the size of the joint section is 3 mm-20 mm along the length direction of the heat exchange tube.
According to a second aspect of an embodiment of the present invention, there is provided a heat exchanger including: header and heat exchange tube according to any one of the above; the collecting pipe is provided with an inner cavity, the pipe wall of the collecting pipe is provided with a mounting hole, the tail section of the heat exchange pipe is inserted into the mounting hole, and a refrigerant channel of the heat exchange pipe is communicated with the inner cavity of the collecting pipe.
Optionally, when the end section of the heat exchange tube is in a circular arc structure, the mounting hole is an arc hole matched with the section of the end section.
According to a third aspect of an embodiment of the present invention, there is provided a heat exchange system including: a compressor, at least one first heat exchanger, a throttling device, at least one second heat exchanger, the at least one first heat exchanger and/or the at least one second heat exchanger being a heat exchanger as claimed in any of the preceding claims.
According to a fourth aspect of the embodiment of the present invention, there is also provided a method for manufacturing a heat exchange tube, including:
manufacturing a straight heat exchange tube, wherein the heat exchange tube is provided with a plurality of refrigerant channels;
providing an arc-shaped groove mold;
the ends of the heat exchange tube are placed at predetermined positions of the arc-shaped groove mold and punched to form the heat exchange tube according to the above-described respective embodiments.
According to the technical scheme, the diameter or equivalent diameter of the collecting pipe matched with the end section can be relatively reduced by adopting a necking mode through the end section, and the beneficial effects of the embodiment are shown in the following description.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention as claimed.
Drawings
FIG. 1 is a schematic cross-sectional view of a heat exchange tube and header assembly according to an exemplary embodiment of the present invention;
fig. 2 is a schematic longitudinal cross-sectional view of a heat exchange tube and header assembly according to an exemplary embodiment of the present invention;
fig. 3 is a schematic longitudinal cross-sectional view of a heat exchange tube and header assembly according to yet another exemplary embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view of a body section of a heat exchange tube according to an exemplary embodiment of the present invention;
FIG. 5 is a schematic cross-sectional view of a final section of a heat exchange tube according to an exemplary embodiment of the present invention;
FIG. 6 is a schematic cross-sectional view of a heat exchanger according to an exemplary embodiment of the present invention;
fig. 7 is a flowchart illustrating a method of manufacturing a heat exchange tube according to an exemplary embodiment of the present invention.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the invention. Rather, they are merely examples of apparatus and methods consistent with aspects of the invention as detailed in the accompanying claims.
In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," etc. indicate or are based on the orientation or positional relationship shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
In this application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by way of additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature. Exemplary embodiments of the present application will be described in detail below with reference to the accompanying drawings. The features of the examples and embodiments described below may be supplemented or combined with one another without conflict.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
Exemplary embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The features of the examples and embodiments described below may be combined with each other without conflict.
Referring to fig. 1 and 2, fig. 1 is a schematic cross-sectional view illustrating an assembly of a heat exchange tube and a header according to an exemplary embodiment of the present invention; fig. 2 is a schematic longitudinal sectional view of a heat exchange tube and header assembly according to an exemplary embodiment of the present invention. The heat exchange tube 10 can be applied to various heat exchange systems with heat exchange tubes, for example, the heat exchange tube can be applied to related or similar fields of air conditioners, refrigerators, freezers and the like.
Referring to fig. 1 and 2, and optionally referring to fig. 3 to 5, a heat exchange tube 10 according to an embodiment of the present invention includes a main body section 11, a final section 13, and a connection section 12 connecting the main body section 11 and the final section 13. The heat exchange tube 10 has a plurality of refrigerant channels 101, and the refrigerant channels 101 penetrate through the main body section 11, the end section 13 and the connecting section 12. That is, each refrigerant channel 101 extends along the length direction (i.e., the X direction in fig. 1) of the heat exchange tube 10 and penetrates through the main body section 11, the connecting section 12 and the end section 13, and the plurality of refrigerant channels 101 are arranged along the width direction (i.e., the Y direction in fig. 1) of the heat exchange tube 10 to form a plurality of communicated refrigerant transmission channels in the heat exchange tube 10.
In one embodiment, the heat exchange tube 10 may be a flat tube, also known in the art as a microchannel heat exchange tube. The flat tube is generally provided with a plurality of refrigerant channels 101 for flowing a refrigerant therein, and may also be referred to as a heat exchange tube 10 having an inner cavity. Adjacent refrigerant channels 101 are isolated from each other, and a plurality of refrigerant channels 101 are arranged in a row, so that the width of the flat tube is affected. The whole flat tube is flat, the length is larger than the width, and the width is larger than the thickness. The length direction of the flat tube is the refrigerant flowing direction determined by the refrigerant channel 101 in the flat tube. The length direction of the flat tube can be linear, broken line type, bending type or the like. The flat tube is not limited to this type, and may be of other forms. For example, adjacent refrigerant channels 101 may not be completely isolated. For another example, all of the refrigerant channels 101 may be arranged in two rows, so long as the width is still greater than the thickness.
In this embodiment, the flat tube has a plurality of side-by-side refrigerant channels 101, and the number and size of the refrigerant channels 101 can be determined according to the size of the heat exchange tube 10 required by the product. A plurality of flat tubes may be aligned along the length of header 20. The heat exchange tube 10 may be made of metal such as aluminum or aluminum alloy. The heat exchanger adopting the flat tube form can greatly improve the heat transfer performance, reduce the filling quantity of the refrigerant and enable the types of the alternative refrigerants to be more various. On the basis of guaranteeing heat exchange performance, the heat exchanger quality can be reduced, and the cost is reduced. In addition, the peripheral wall forming the refrigerant channel 101 may be provided with a plurality of protruding structures or recessed structures, which may be in various shapes such as wavy, zigzag, etc., so as to increase the heat exchange area, and in addition, the protruding structures or recessed structures may also form capillary phenomenon, so as to accelerate heat exchange.
The end section 13 is used for being connected to the collecting pipe 20, the collecting pipe 20 is also provided with an inner cavity (not shown in the figure), the inner cavity of the heat exchange pipe 10 is mutually communicated with the inner cavity of the collecting pipe 20, the inner cavities of the heat exchange pipe 10 and the inner cavity of the collecting pipe 20 are respectively provided with a refrigerant, and the refrigerant in the collecting pipe 20 can be subjected to heat exchange circulation through the communication between the heat exchange pipe 10 and the collecting pipe 20.
In the embodiment of the present invention, the heat exchange tube 10 has a width direction, and the arrangement direction of the plurality of refrigerant channels 101 is the width direction of the heat exchange tube 10. The spacing between the two refrigerant channels 101 located furthest apart from the end section 13 in the width direction is smaller than the spacing between the two refrigerant channels 101 located furthest apart from the two sides of the main body section 11. That is, the end section 13 of the present invention is deformed to reduce the width dimension (i.e. the dimension along the Y direction in fig. 1) of the end section 13, at this time, the refrigerant channels 101 of the main body section 11 are arranged side by side in a straight shape, and the refrigerant channels 101 of the end section 13 form an arc arrangement. The design mode can reduce the pipe diameter of the collecting pipe 20 and the refrigerant filling amount, and further reduce the volume and the weight of the collecting pipe 20 under the condition of ensuring the strength requirement of the collecting pipe 20, thereby meeting the requirement of the market on the light weight of the collecting pipe 20.
In another embodiment, the end section 13 has a circular arc structure, the cross section of the end section along the width direction is circular arc, the main section 11 is a flat section, and the cross section of the main section along the width direction is a straight line shape. The circumferential angle range corresponding to the cross section of the end section 13 in the width direction is 10 ° to 350 °. Further, the circumferential angle corresponding to the cross section of the end section 13 in the width direction is 90 ° to 180 °. The preferable circumferential angle of the cross section of the end section 13 in the width direction is 90 ° or 180 °, and about 180 ° is most preferable. Of course, in other embodiments, the end segment 13 may be of an irregular arcuate configuration, provided that the width dimension of the end segment 13 is less than the width dimension of the body segment 11.
The width dimension of the end section 13 is smaller than or equal to the diameter or equivalent diameter of the header 20, so that the diameter of the header 20 can be effectively reduced. The measurement of the equivalent diameter in this embodiment is applied in the case where the header 20 is irregularly shaped, and the length of the equivalent diameter is the width dimension of the header 20 at the end section 13. Correspondingly, the collecting pipe 20 comprises a longitudinal pipe body, the pipe body is provided with a mounting hole with a shape matched with the cross section of the tail section 13 in the width direction, the mounting hole is an arc-shaped hole matched with the tail section 13, and the radian and the radius of the arc-shaped hole are consistent with those of the tail section 13 so as to ensure the assembly precision of the heat exchange pipe 10 and the collecting pipe 20. Further, the heat exchange tube 10 is assembled with the header 20 and then fixed by brazing.
In the heat exchange tube 10, since the main body section 11 is the main heat exchange area. Thus, the length of the body segment 11 is typically much greater than the connector segment 12 and the end segment 13. The connecting section 12 of the invention is a necking section, and the connecting section 12 is a connecting structure for connecting the main body section 11 and the tail section 13. Wherein the engagement section 12 has a reduced width along the extension direction of the main body section 11 towards the end section 13 (i.e. the X-direction in fig. 1). In this embodiment, the end of the connecting section 12 connected to the main body section 11 is a first end, the width of the end of the first end is approximately equal to the width of the main body section 11, the end of the connecting section 12 connected to the end section 13 is a second end, and the width of the second end is equal to the width of the end section 13.
Further, the engagement section 12 has an increased height (i.e., a dimension in the Z direction in fig. 2) in the direction of the main body section 11 toward the end section 13. Specifically, the first end of the connecting section 12 has the same height as the main section 11, and the second end of the connecting section 12 has the same height as the end section 13.
The inventor(s) combines the accumulated production and processing technology experience to obtain: the size of the joint section 12 is 3mm to 20mm along the length direction of the heat exchange tube 10.
In the present invention, two ends of the heat exchange tube 10 are respectively connected with the collecting pipe 20, and the inner cavity of the heat exchange tube 10 is communicated with the inner cavity of the collecting pipe 20, so that when the heat exchange tube 10 is filled with refrigerant, the collecting pipe 20 at two ends can form refrigerant circulation among the plurality of heat exchange tubes 10 connected between the two collecting pipes 20, thereby being beneficial to heat exchange. The two collecting pipes 20 at the two ends of the heat exchange pipe 10 are arranged in parallel, and the plurality of heat exchange pipes 10 are arranged between the two collecting pipes 20 in parallel. Wherein each heat exchange tube 10 comprises a main body section 11, two end sections 13 positioned at two ends of the main body section 11, and two connecting sections 12 connecting the main body section 11 and the two end sections 13.
Of course, in another embodiment of the present invention, the heat exchanger may also be a double row tube combination or a multi-row tube combination. In the embodiment of the double-row tube combination, the heat exchanger comprises three collecting pipes 20 which are arranged in parallel, and a plurality of heat exchange tubes 10 are arranged between two adjacent collecting pipes 20 in sequence.
According to the embodiment of the application, on the premise of ensuring the compressive strength, the inner diameter and the outer diameter of the collecting pipe 20 are reduced by adopting the necking mode through the tail section 13, the volume and the weight of the collecting pipe 20 can be reduced, so that the volume of the collecting pipe 20 is reduced, the refrigerant filling amount of a heat exchange system is reduced, and the safety of the heat exchange system is improved.
As shown in fig. 6, according to still another aspect of the embodiment of the present invention, there is also provided a heat exchanger 100, the heat exchanger 100 including: header 20 and heat exchange tube 10 assembled to header 20. The header 20 has an inner cavity, the wall of the header 20 is provided with a mounting hole, the end section 13 of the heat exchange tube 10 is inserted into the mounting hole (not shown), the assembly precision of the heat exchange tube 10 and the header 20 needs to be ensured, and then the heat exchange tube is fixed in a brazing manner, and the refrigerant channel 101 of the heat exchange tube 10 is communicated with the inner cavity of the header 20.
Referring to fig. 6 in combination with fig. 5, in the present invention, the end section 13 of the heat exchange tube 10 is designed in a necking mode. Specifically, the spacing between the two refrigerant channels 101 on both sides of the end section 13 is smaller than the spacing between the two refrigerant channels 101 on both sides of the main body section 11. I.e. the end segment 13 of the present invention is deformed to reduce the width dimension of the end segment 13. In an alternative embodiment, when the end section 13 is in a circular arc configuration, the mounting hole is a circular arc hole that mates with the end section 13. At this time, the refrigerant channels 101 of the main body section 11 are arranged side by side in a straight shape, and the refrigerant channels 101 of the end sections 13 are arranged in an arc shape.
Further, the header 20 is provided with a partition groove (not shown) for fitting a partition (not shown) to divide the header into a plurality of chambers isolated from each other, so that the design is advantageous for circulation of the refrigerant in the plurality of heat exchange tubes 10.
In addition, the invention also provides a heat exchange system, which comprises a compressor, at least one first heat exchanger, a throttling device and at least one second heat exchanger, wherein the at least one first heat exchanger and/or the at least one second heat exchanger are heat exchangers, and the structural characteristics of the heat exchangers are shown in the above embodiments and are not repeated herein.
When the heat exchange system is in a working state, the heat exchanger can be used for realizing heat exchange between a heat exchange medium in the heat exchange system and air outside the heat exchange system. The compressor can be used for circularly working the heat exchange medium in the heat exchange system so that the heat exchange medium can be circularly utilized.
As shown in fig. 7, according to still another aspect of the embodiment of the present invention, there is also provided a manufacturing method of a heat exchange tube, the manufacturing method including:
s701, manufacturing a straight middle pipe fitting, wherein the middle pipe fitting is provided with a plurality of refrigerant channels, and the middle pipe fitting is of an integrated structure;
s702, providing an arc-shaped groove mold;
s703, placing the end part of the middle pipe fitting at a preset position of the arc-shaped groove die, and stamping to form the heat exchange pipe.
In the embodiment, firstly, a straight middle pipe fitting and an arc-shaped groove mold are processed for standby, wherein the middle pipe fitting is provided with a plurality of refrigerant channels arranged side by side; and then, under the action of mechanical force, the end part of the middle pipe fitting is stamped, so that the end part of the middle pipe fitting is deformed, and the heat exchange pipe structure is formed.
Correspondingly, the liquid collecting pipe adopts CNC (Computerized Numerical Control, computer numerical control technology) numerical control milling machine processing technology, and an arc-shaped hole matched with the tail end section of the heat exchange pipe is processed on the side wall of the liquid collecting pipe, so that the heat exchange pipe and the collecting pipe are in clearance fit and fixed through brazing.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It is to be understood that the invention is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (12)
1. A heat exchange tube, characterized in that the heat exchange tube is a flat tube, the heat exchange tube comprising: the heat exchange tube comprises a main body section, a tail section and a connecting section connected with the main body section and the tail section, wherein the heat exchange tube is provided with a plurality of refrigerant channels, each refrigerant channel in the plurality of refrigerant channels penetrates through the main body section, the tail section and the connecting section, the heat exchange tube is provided with a width direction, the distance between two refrigerant channels which are farthest from each other along the width direction of the heat exchange tube is smaller than the distance between two refrigerant channels which are farthest from each other along the width direction of the heat exchange tube, the tail section is of a circular arc structure formed by stamping, and the cross section of the tail section along the width direction is of a fan ring shape.
2. The heat exchange tube according to claim 1, wherein the main body section is a flat section, and a cross section of the main body section in a width direction is a straight line shape.
3. The heat exchange tube according to claim 2, wherein the circumferential angle range corresponding to the cross section of the end section in the width direction is 10 ° to 350 °.
4. A heat exchange tube according to claim 3, wherein the circumferential angle corresponding to the cross section of the end section in the width direction is 90 ° to 180 °.
5. A heat exchange tube according to claim 1 or 2, wherein the width dimension of the end sections is less than or equal to the diameter or equivalent diameter of the header.
6. The heat exchange tube of claim 1 wherein the engagement section is a necked-down section, wherein the engagement section has a reduced width along the extension of the main body section toward the end section.
7. A heat exchange tube according to claim 1 or 6, wherein the engagement sections have an increasing height in the direction of the main body section towards the end sections.
8. The heat exchange tube according to claim 1, wherein the dimension of the engagement section is 3mm to 20mm along the length direction of the heat exchange tube.
9. A heat exchanger, comprising: header and heat exchange tube according to any one of claims 1 to 8; the collecting pipe is provided with an inner cavity, the pipe wall of the collecting pipe is provided with a mounting hole, the tail section of the heat exchange pipe is inserted into the mounting hole, and a refrigerant channel of the heat exchange pipe is communicated with the inner cavity of the collecting pipe.
10. The heat exchanger according to claim 9, wherein when the end section of the heat exchange tube has a circular arc-shaped structure, the mounting hole is an arc-shaped hole that matches a cross section of the end section in the width direction.
11. A heat exchange system, comprising: compressor, at least one first heat exchanger, throttling means, at least one second heat exchanger, said at least one first heat exchanger and/or said at least one second heat exchanger being a heat exchanger according to claim 9 or 10.
12. A method of manufacturing a heat exchange tube, comprising:
manufacturing a straight middle pipe fitting, wherein the middle pipe fitting is provided with a plurality of refrigerant channels, and the middle pipe fitting is of an integrated structure;
providing an arc-shaped groove mold;
placing the end of the intermediate tube at a predetermined position of the arc-shaped groove die and forming the heat exchange tube according to any one of claims 1 to 8 by punching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810955482.4A CN110849194B (en) | 2018-08-21 | 2018-08-21 | Heat exchange tube, heat exchanger, heat exchange system and manufacturing method of heat exchange tube |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810955482.4A CN110849194B (en) | 2018-08-21 | 2018-08-21 | Heat exchange tube, heat exchanger, heat exchange system and manufacturing method of heat exchange tube |
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| CN110849194A CN110849194A (en) | 2020-02-28 |
| CN110849194B true CN110849194B (en) | 2024-03-19 |
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| CN110207528A (en) * | 2019-06-25 | 2019-09-06 | 珠海格力电器股份有限公司 | Flat pipe and micro-channel heat exchanger |
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| JPH03102197A (en) * | 1989-09-14 | 1991-04-26 | Sanden Corp | Method of connecting tube to header pipe of heat exchanger |
| JP2000018879A (en) * | 1998-06-26 | 2000-01-18 | Toyo Radiator Co Ltd | Method and structure for connecting tube to tube plate |
| JP2002318093A (en) * | 2001-04-16 | 2002-10-31 | Zexel Valeo Climate Control Corp | Heat exchanger |
| JP2005188849A (en) * | 2003-12-26 | 2005-07-14 | Zexel Valeo Climate Control Corp | Heat exchanger |
| CN201964816U (en) * | 2011-02-15 | 2011-09-07 | 金龙精密铜管集团股份有限公司 | Specially-shaped mouth micro-channel heat exchange flat tube and heat exchanger |
| CN102313399A (en) * | 2011-07-05 | 2012-01-11 | 广东美的电器股份有限公司 | Parallel-flow heat exchanger |
| CN203375769U (en) * | 2013-05-31 | 2014-01-01 | 广东美的制冷设备有限公司 | Parallel flow type condenser and air conditioner |
| CN105091413A (en) * | 2014-05-06 | 2015-11-25 | 美的集团股份有限公司 | Heat exchanger |
| CN207515280U (en) * | 2017-07-13 | 2018-06-19 | 杭州三花研究院有限公司 | Heat exchanger tube, header, heat exchanger and refrigeration system |
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| CN110849194A (en) | 2020-02-28 |
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