CN220750873U - Parallel flow corrosion-resistant multi-channel flat tube heat exchanger - Google Patents
Parallel flow corrosion-resistant multi-channel flat tube heat exchanger Download PDFInfo
- Publication number
- CN220750873U CN220750873U CN202322494885.2U CN202322494885U CN220750873U CN 220750873 U CN220750873 U CN 220750873U CN 202322494885 U CN202322494885 U CN 202322494885U CN 220750873 U CN220750873 U CN 220750873U
- Authority
- CN
- China
- Prior art keywords
- tube
- heat exchanger
- parallel flow
- outer tube
- flat tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000007797 corrosion Effects 0.000 title claims abstract description 19
- 238000005260 corrosion Methods 0.000 title claims abstract description 19
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 41
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 41
- 239000010439 graphite Substances 0.000 claims abstract description 41
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 32
- 229910052802 copper Inorganic materials 0.000 claims abstract description 32
- 239000010949 copper Substances 0.000 claims abstract description 32
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 210000002478 hand joint Anatomy 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a parallel flow corrosion-resistant multi-channel flat tube heat exchanger which comprises two collecting pipes and a plurality of heat exchange flat tubes arranged between the two collecting pipes, wherein each heat exchange flat tube consists of an outer tube and a graphite inner tube arranged in the outer tube, a plurality of channels are arranged in the graphite inner tube, a plurality of copper strips are embedded between the outer tube and the graphite inner tube, each copper strip extends along the axial direction of the heat exchange flat tube, the heat exchanger further comprises two connectors, the inner ends of the connectors are sleeved and fixed on the outer side of the end part of the outer tube, the inner ends of the connectors are further provided with limiting steps, the end part of the outer tube is abutted against the limiting steps, and the end part of the graphite inner tube is abutted against the limiting steps through copper cushion rings which also seal the joint of the graphite inner tube and the outer tube.
Description
Technical Field
The utility model relates to a parallel flow corrosion-resistant multi-channel flat tube heat exchanger.
Background
The parallel flow multi-channel flat tube heat exchanger in the prior art generally comprises two collecting pipes and a plurality of heat exchange flat tube assemblies arranged between the two collecting pipes, wherein the heat exchange flat tube assemblies are generally aluminum tubes with built-in multi-channels, the interior of the flat tube assemblies of the heat exchanger with the structure is easy to corrode, and a certain lifting space exists in the aspect of heat exchange performance.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide the parallel flow multi-channel flat tube heat exchanger with stronger heat exchange performance and corrosion resistance.
The technical scheme of the utility model is as follows: the parallel flow corrosion-resistant multi-channel flat tube heat exchanger comprises two collecting pipes and a plurality of heat exchange flat tubes arranged between the two collecting pipes, wherein each heat exchange flat tube consists of an outer tube and a graphite inner tube arranged in the outer tube, a plurality of channels are arranged in the graphite inner tube, a plurality of copper strips are embedded between the outer tube and the graphite inner tube, and each copper strip extends along the axial direction of the heat exchange flat tube;
the graphite inner pipe is characterized by further comprising two joints, wherein the inner ends of the joints are sleeved and fixed on the outer side of the end part of the outer pipe, the inner ends of the joints are further provided with limiting steps, the end part of the outer pipe is abutted against the limiting steps, the end part of the graphite inner pipe is abutted against the limiting steps through copper backing rings, and the copper backing rings are further used for sealing the joint of the graphite inner pipe and the outer pipe.
Specifically, the outer tube is an aluminum tube, and the joint is an aluminum joint.
Furthermore, the inner wall of the outer tube and the outer wall of the graphite inner tube are respectively provided with a mounting groove corresponding to the copper bar.
Preferably, the copper bars are provided in two pairs.
Furthermore, the outer end of the connector is in an isosceles trapezoid shape, the collecting pipe is provided with a jack corresponding to the connector, and the connector is inserted into the jack and welded with the collecting pipe.
Specifically, the joint is welded to the end of the outer tube.
Further, the inside arc chamfer that has of outer end of joint.
Further, the inner periphery of the copper backing ring is provided with a convex ring, the outer periphery of the end part of the graphite inner tube is provided with a step corresponding to the convex ring, and the convex ring is clamped between the step of the graphite inner tube and the outer tube.
Specifically, the cross section of the convex ring is triangular.
Further, the heat exchange device also comprises heat exchange fins, and each heat exchange fin is clamped between each heat exchange flat tube.
The beneficial effects of the utility model are as follows: the multichannel graphite inner tube has better corrosion resistance and heat conductivity, and the arrangement of the outer tube and the copper strips is matched, so that the problem that the material of the graphite inner tube is softer is solved, the overall performance of the heat exchanger can be effectively improved, and the service life of the heat exchanger is prolonged.
Drawings
FIG. 1 is a cross-sectional view of a heat exchange flat tube in accordance with the present utility model;
FIG. 2 is a cross-sectional view of the heat exchange flat tube in another direction of the present utility model;
fig. 3 is an enlarged view of a portion a in fig. 1;
fig. 4 is a schematic structural view of the present utility model.
In the figure: header 1, heat exchange flat tube 2, outer tube 3, graphite inner tube 4, passageway 5, copper bar 6, connect 7, spacing step 8, copper pad ring 9, bulge loop 10, heat exchange fin 11.
Detailed Description
The technical scheme of the utility model is further specifically described below through examples and with reference to the accompanying drawings.
1-4, the parallel flow corrosion-resistant multi-channel flat tube heat exchanger comprises two collecting pipes 1 and a plurality of heat exchange flat tubes 2 arranged between the two collecting pipes 1;
the heat exchange flat tube 2 consists of an outer tube 3 and a graphite inner tube 4 arranged in the outer tube 3, a plurality of channels 5 are arranged in the graphite inner tube 4, a plurality of copper bars 6 are embedded between the outer tube 3 and the graphite inner tube 4, each copper bar 6 extends along the axial direction of the heat exchange flat tube 2, the copper bars 6 have good ductility and thermal conductivity, and a certain buffer space is provided for the heat exchange flat tube 4 by being arranged between the outer tube 3 and the graphite inner tube 4, so that the damage to the graphite inner tube 4 caused by thermal expansion and contraction of the outer tube 3 can be avoided;
still include two joints 7, the inner cover that connects 7 is put and is fixed in the outer tube 3 tip outside, the inner that connects 7 still has spacing step 8, the tip and the spacing step 8 butt of outer tube 3, the tip and the spacing step 8 butt of graphite inner tube 4 are passed through copper backing ring 9, copper backing ring 9 still seals the junction of graphite inner tube 4 and outer tube 3, and in this structure, joint 7 not only carries out spacing effect to graphite inner tube 4, avoids graphite inner tube 4 to produce back-and-forth displacement, and on the other hand joint 7 still extrudees copper backing ring 9 to ensure the sealing of copper backing ring 9 to the junction of graphite inner tube 4 and outer tube 3, avoid the heat exchanger during operation medium to be permeated by the clearance between graphite inner tube 4 and the outer tube 3 tip.
In the structure, the multichannel graphite inner tube 4 has better corrosion resistance and heat conductivity, and the arrangement of the outer tube 3 and the copper bar 6 is matched, so that the problem that the material of the graphite inner tube 4 is softer is solved, the overall performance of the heat exchanger can be effectively improved, and the service life of the heat exchanger is prolonged.
Specifically, the outer tube 3 is an aluminum tube, and the joint 7 is an aluminum joint 7.
In another embodiment, as shown in fig. 2, the inner wall of the outer tube 3 and the outer wall of the graphite inner tube 4 are also provided with mounting grooves corresponding to the copper bars 6 respectively.
Preferably, as shown in fig. 2, there are two pairs of copper bars 6.
In another embodiment, as shown in fig. 1, the outer ends of the connectors 7 are isosceles trapezoid, the collecting pipe 1 is provided with insertion holes corresponding to the connectors 7, and the connectors 7 are inserted into the insertion holes and welded with the collecting pipe 1.
In another embodiment, the joint 7 is welded to the end of the outer tube 3.
In another embodiment, as shown in fig. 1, the outer end of the joint 7 is internally provided with an arc-shaped chamfer, which is arranged to provide, on the one hand, a flow guiding effect for the medium and, on the other hand, a thickening of the joint 7 in this position to facilitate the welding of the collector tube 1.
In another embodiment, as shown in fig. 3, the inner periphery of the copper gasket ring 9 is provided with a convex ring 10, the outer periphery of the end part of the graphite inner tube 4 is provided with a step corresponding to the convex ring 10, and the convex ring 10 is clamped between the step of the graphite inner tube 4 and the outer tube 3, so that the sealing of the copper gasket ring 9 is more reliable.
In another embodiment, the cross section of the convex ring 10 is triangular.
In another embodiment, as shown in fig. 4, the heat exchange tube further comprises heat exchange fins 11, and each heat exchange fin 11 is clamped between each heat exchange flat tube 2.
Claims (10)
1. The parallel flow corrosion-resistant multi-channel flat tube heat exchanger comprises two collecting pipes (1) and a plurality of heat exchange flat tubes (2) arranged between the two collecting pipes (1), and is characterized in that the heat exchange flat tubes (2) are composed of an outer tube (3) and a graphite inner tube (4) arranged in the outer tube (3), a plurality of channels (5) are arranged in the graphite inner tube (4), a plurality of copper strips (6) are embedded between the outer tube (3) and the graphite inner tube (4), and each copper strip (6) extends along the axial direction of the heat exchange flat tube (2);
still include two joints (7), the inner cover that connects (7) is put and is fixed in outer tube (3) tip outside, the inner of joint (7) still has spacing step (8), the tip and the spacing step (8) looks butt of outer tube (3), the tip and the spacing step (8) looks butt of graphite inner tube (4) through copper backing ring (9), the junction of graphite inner tube (4) and outer tube (3) is still sealed to copper backing ring (9).
2. The parallel flow corrosion resistant multi-channel flat tube heat exchanger according to claim 1, wherein the outer tube (3) is an aluminum tube and the joint (7) is an aluminum joint (7).
3. The parallel flow corrosion resistant multi-channel flat tube heat exchanger according to claim 2, wherein the inner wall of the outer tube (3) and the outer wall of the graphite inner tube (4) are respectively provided with mounting grooves corresponding to copper strips (6).
4. A parallel flow corrosion resistant multi-channel flat tube heat exchanger according to claim 3, wherein said copper strips (6) are in two pairs.
5. The parallel flow corrosion resistant multi-channel flat tube heat exchanger according to claim 4, wherein the outer end of the connector (7) is in an isosceles trapezoid shape, the collecting pipe (1) is provided with a jack corresponding to the connector (7), and the connector (7) is inserted into the jack and welded with the collecting pipe (1).
6. The parallel flow corrosion resistant multi-channel flat tube heat exchanger according to claim 5, wherein the joint (7) is welded to the end of the outer tube (3).
7. The parallel flow corrosion resistant multi-channel flat tube heat exchanger according to claim 6, wherein the outer end of the joint (7) is internally provided with an arc-shaped chamfer.
8. The parallel flow corrosion resistant multi-channel flat tube heat exchanger according to claim 7, wherein the inner periphery of the copper gasket ring (9) is provided with a convex ring (10), the outer periphery of the end part of the graphite inner tube (4) is provided with a step corresponding to the convex ring (10), and the convex ring (10) is clamped between the step of the graphite inner tube (4) and the outer tube (3).
9. The parallel flow corrosion resistant multi-channel flat tube heat exchanger according to claim 8, wherein the cross section of the collar (10) is triangular.
10. The parallel flow corrosion resistant multi-channel flat tube heat exchanger according to claim 9, further comprising heat exchange fins (11), each heat exchange fin (11) being clamped between each heat exchange flat tube (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322494885.2U CN220750873U (en) | 2023-09-14 | 2023-09-14 | Parallel flow corrosion-resistant multi-channel flat tube heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322494885.2U CN220750873U (en) | 2023-09-14 | 2023-09-14 | Parallel flow corrosion-resistant multi-channel flat tube heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220750873U true CN220750873U (en) | 2024-04-09 |
Family
ID=90568714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322494885.2U Active CN220750873U (en) | 2023-09-14 | 2023-09-14 | Parallel flow corrosion-resistant multi-channel flat tube heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220750873U (en) |
-
2023
- 2023-09-14 CN CN202322494885.2U patent/CN220750873U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN220750873U (en) | Parallel flow corrosion-resistant multi-channel flat tube heat exchanger | |
| JP2012137251A (en) | Multitubular heat exchanger | |
| CN210718793U (en) | Copper pipe for manufacturing diesel oil cooler | |
| CN217330856U (en) | Acid-resistant and high-temperature-resistant stainless steel seamless steel tube for heat exchanger | |
| CN209820240U (en) | Folding concave-convex channel pipe | |
| CN201886820U (en) | Self-lubricating swivel joint type water cooled cable | |
| CN213510826U (en) | Multi-section exhaust manifold | |
| CN212107361U (en) | Connecting pipe suitable for multiple pipe diameters | |
| CN210123213U (en) | Novel micro-channel heat exchanger with single collecting pipe | |
| CN218469619U (en) | Clamping-pressing type heat exchanger | |
| CN210570121U (en) | Water-cooling pipe | |
| CN212431897U (en) | Microchannel collecting pipe | |
| CN213956055U (en) | High-efficient spiral winding tubular heat exchanger | |
| CN218723368U (en) | Novel heat transfer pipe structure | |
| CN217604779U (en) | Connecting pipe and heat exchanger comprising same | |
| CN213067243U (en) | Detachable heat exchange tube | |
| CN214371911U (en) | Heat exchanger | |
| CN218469639U (en) | End connecting structure of pulsating heat pipe | |
| CN217328840U (en) | Aluminum composite pipe with brazing filler metal and internal thread | |
| CN211398952U (en) | End fitting manufactured by steel rolling | |
| CN210198149U (en) | Floating tube type graphite heat exchanger | |
| CN217433322U (en) | Cooling device of heavy-current suspension welding machine | |
| CN212458097U (en) | Sealing structure of graphite heat exchanger | |
| CN113865408B (en) | Plastic sealing element structure | |
| CN212870837U (en) | Novel alloy heat exchange device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |