CN211651346U - Composite pipe for heat exchange - Google Patents
Composite pipe for heat exchange Download PDFInfo
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- CN211651346U CN211651346U CN201922316296.9U CN201922316296U CN211651346U CN 211651346 U CN211651346 U CN 211651346U CN 201922316296 U CN201922316296 U CN 201922316296U CN 211651346 U CN211651346 U CN 211651346U
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Abstract
The utility model relates to the technical field of composite pipes, in particular to a composite pipe for heat exchange, which comprises a copper pipe layer, wherein a steel pipe layer is nested inside the copper pipe layer, an internal thread is fixedly arranged on the inner wall of the right end of the steel pipe layer, and the left end of the steel pipe layer extends out of the copper pipe layer; an external thread matched with the internal thread is fixedly arranged on the outer wall of the left end of the steel pipe layer; a plurality of first locking lugs are fixedly arranged on the outer wall of the right end part of the copper pipe layer, and threaded through holes are formed in the first locking lugs; a plurality of second locking support lugs are fixedly arranged on the outer wall of the left end part of the copper pipe layer; the second locking lug is internally threaded with a locking bolt; the utility model discloses simple structure, the lug connection between the many compound pipes of being convenient for, and be difficult for bending.
Description
Technical Field
The utility model relates to a compound pipe technical field, in particular to compound pipe is used in heat exchange.
Background
Heat exchange is a heat transfer process between two objects or parts of the same object caused by temperature difference, and is generally completed by three ways of heat conduction, heat convection and heat radiation.
Referring to the chinese utility model with the prior publication number CN 200972353, it discloses a composite tube for heat exchange, which comprises a copper tube layer and an aluminum tube layer nested with the copper tube layer. The utility model aims at providing a copper aluminium composite tube for heat exchange for adopt the aluminum pipe can not satisfy the problem of refrigeration requirement of refrigeration plant and adopt the too high problem of copper pipe cost among the solution prior art.
The composite pipe adopts the copper pipe and the aluminum pipe bimetal pipe, so that the problem of high cost of the copper pipe and the copper pipe is solved, but the composite pipe still has some defects: when the heat exchanger is used in a large-scale heat exchange occasion, a plurality of heat exchange tubes are often required to be connected end to end so as to meet the use requirements of different occasions, and the technical scheme does not have a structure of directly connecting a plurality of composite tubes; the composite pipe adopts a copper-aluminum pipe bimetal pipe, but due to the fact that the density of copper and aluminum is low, the composite pipe is easy to bend due to the structural strength angle under the condition that some composite pipes need to bear load at the same time.
SUMMERY OF THE UTILITY MODEL
To the problem mentioned in the background art, the utility model aims at providing a compound pipe is used in heat exchange to solve the problem mentioned in the background art.
The above technical purpose of the present invention can be achieved by the following technical solutions:
a composite pipe for heat exchange comprises a copper pipe layer, a steel pipe layer is nested in the copper pipe layer, internal threads are fixedly arranged on the inner wall of the right end of the steel pipe layer, and the left end of the steel pipe layer extends out of the copper pipe layer; an external thread matched with the internal thread is fixedly arranged on the outer wall of the left end of the steel pipe layer; a plurality of first locking lugs are fixedly arranged on the outer wall of the right end part of the copper pipe layer, and threaded through holes are formed in the first locking lugs; a plurality of second locking support lugs are fixedly arranged on the outer wall of the left end part of the copper pipe layer; and the second locking support lug is internally threaded with a locking bolt.
Preferably, a non-thickness interface is arranged between the copper pipe layer and the steel pipe layer.
By adopting the technical scheme, the copper pipe layer and the steel pipe layer can be tightly combined, and the size of the composite pipe is reduced.
Preferably, the cross section of the steel pipe layer is 8-shaped.
By adopting the technical scheme, the 8-shaped design can increase the area of the outer surface of the steel pipe layer and improve the heat exchange efficiency.
Preferably, the shape and material of the first locking lug and the second locking lug are completely the same.
By adopting the technical scheme, the first locking lug and the second locking lug are convenient for modular design and production, and the production cost is reduced.
Preferably, the inner surface of the steel pipe layer is a smooth surface, and the outer surface of the copper pipe layer is a smooth surface.
By adopting the technical scheme, the flow of fluid inside and outside the composite pipe is facilitated, the flow speed is increased, and the heat exchange efficiency is further improved.
Preferably, the wall thickness of the steel pipe layer is 0.2 to 1.5 mm.
By adopting the technical scheme, the steel pipe layer can be ensured to have higher hardness, and the bending of the composite pipe is prevented.
Preferably, the first magnet layer is fixedly arranged on the right end face of the copper pipe layer and the right end face of the steel pipe layer.
Through adopting above-mentioned technical scheme, be convenient for the close connection between the different compound pipes.
Preferably, a second magnet layer matched with the first magnet layer is fixedly arranged on the copper pipe layer and the left end face of the steel pipe layer.
Through adopting above-mentioned technical scheme, be convenient for the close connection between the different compound pipes.
To sum up, the utility model discloses mainly have following beneficial effect:
first, this composite pipe includes the copper pipe layer, the inside nested steel pipe layer that has of copper pipe layer, steel pipe layer cost of manufacture is lower, also has certain heat-conduction property, and steel pipe layer and aluminium pipe layer compare and possess higher hardness, prevents that composite pipe from being bent, and composite pipe's heat exchange efficiency can not take place how much change simultaneously.
Secondly, internal threads are fixedly arranged on the inner wall of the right end of the steel pipe layer, and the left end of the steel pipe layer extends to the copper pipe layer; an external thread matched with the internal thread is fixedly arranged on the outer wall of the left end of the steel pipe layer; the internal thread and the external thread are mutually matched, so that the connection among a plurality of composite pipes is facilitated.
Thirdly, a plurality of first locking lugs are fixedly arranged on the outer wall of the right end part of the copper pipe layer, and threaded through holes are formed in the first locking lugs; a plurality of second locking support lugs are fixedly arranged on the outer wall of the left end part of the copper pipe layer; the second locking lug is internally threaded with a locking bolt; when the composite pipe sealing device is used, the locking bolt penetrates through the first locking support lug and the second locking support lug, so that the axial force between adjacent composite pipes can be increased, and the sealing performance between different composite pipes is better.
Drawings
Fig. 1 is a front sectional view of the present invention;
fig. 2 is a right side view of the present invention.
Reference numerals: 1. a steel pipe layer; 2. a copper pipe layer; 3. a first locking lug; 4. a threaded through hole; 5. locking the bolt; 6. a first magnet layer; 7. a second magnet layer; 8. an internal thread; 9. an external thread; 10. and the second locking lug.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
Referring to fig. 1-2, a composite pipe for heat exchange comprises a copper pipe layer 2, a steel pipe layer 1 nested inside the copper pipe layer 2, an internal thread 8 fixedly arranged on the inner wall of the right end of the steel pipe layer 1, and the left end of the steel pipe layer 1 extending out of the copper pipe layer 2; an external thread 9 matched with the internal thread 8 is fixedly arranged on the outer wall of the left end of the steel pipe layer 1; a plurality of first locking lugs 3 are fixedly arranged on the outer wall of the right end part of the copper pipe layer 2, and threaded through holes 4 are formed in the first locking lugs 3; a plurality of second locking lugs 10 are fixedly arranged on the outer wall of the left end part of the copper pipe layer 2; the inner threads of the second locking support lug 10 are connected with a locking bolt 5; the first locking lug 3 and the second locking lug 10 are made of stainless steel materials, and the steel pipe layer 1 can be made of 403 stainless steel and has good heat conducting performance and mechanical performance.
According to the embodiment, the steel pipe layer 1 is low in manufacturing cost and has certain heat conduction property, the steel pipe layer 1 has higher hardness compared with an aluminum pipe layer, the composite pipe is prevented from being bent, and meanwhile the heat exchange efficiency of the composite pipe cannot be changed slightly; the internal thread 8 and the external thread 9 are matched with each other, so that the connection among a plurality of composite pipes is facilitated; the arrangement of the locking bolt 5 increases the axial force between the adjacent composite pipes, so that the sealing performance between different composite pipes is better.
According to the above embodiments, referring to fig. 1 and 2, a non-thickness interface is formed between the copper pipe layer 2 and the steel pipe layer 1, so that the copper pipe layer 2 and the steel pipe layer 1 can be tightly bonded, and the size of the composite pipe can be reduced.
According to the above embodiments, specifically, referring to fig. 1 and fig. 2, the cross section of the steel pipe layer 1 is "8" shaped, and the design of the "8" shape can increase the area of the outer surface of the steel pipe layer 1, and improve the heat exchange efficiency.
According to the above embodiments, specifically, referring to fig. 1 and fig. 2, the shapes and materials of the first locking lug 3 and the second locking lug 10 are completely the same, and the structures of the first locking lug 3 and the second locking lug 10 are convenient for modular design and production, thereby reducing the production cost.
According to the above embodiments, specifically, referring to fig. 1 and fig. 2, the inner surface of the steel pipe layer 1 is a smooth surface, and the outer surface of the copper pipe layer 2 is smooth, so that the flow of the fluid inside and outside the composite pipe is facilitated, the flow speed is increased, and the heat exchange efficiency is further improved.
According to the above embodiments, specifically, referring to fig. 1 and fig. 2, the wall thickness of the steel pipe layer 1 is 0.2 to 1.5 mm; the steel pipe layer 1 can be guaranteed to have higher hardness, bending of the composite pipe is prevented, and the specific wall thickness value can be adjusted according to requirements of different use occasions.
According to the above embodiments, specifically, referring to fig. 1 and 2, the first magnet layer 6 is fixedly disposed on the right end surface of the copper pipe layer 2 and the steel pipe layer 1, so as to facilitate tight connection between different composite pipes.
According to the above embodiments, specifically, referring to fig. 1 and 2, the left end surfaces of the copper pipe layer 2 and the steel pipe layer 1 are fixedly provided with the second magnet layer 7 matched with the first magnet layer 6, so as to facilitate the tight connection between different composite pipes; the thickness of the first magnet layer 6 and the second magnet layer 7 is not more than 1.5mm, so that the phenomenon that the composite pipe is inconvenient to separate due to overlarge magnetic force is prevented.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A composite tube for heat exchange, comprising a copper tube layer (2), characterized in that: the steel pipe layer (1) is nested in the copper pipe layer (2), an internal thread (8) is fixedly arranged on the inner wall of the right end of the steel pipe layer (1), and the left end of the steel pipe layer (1) extends out of the copper pipe layer (2); an external thread (9) matched with the internal thread (8) is fixedly arranged on the outer wall of the left end of the steel pipe layer (1); a plurality of first locking support lugs (3) are fixedly arranged on the outer wall of the right end part of the copper pipe layer (2), and threaded through holes (4) are formed in the first locking support lugs (3); a plurality of second locking lugs (10) are fixedly arranged on the outer wall of the left end part of the copper pipe layer (2); and the second locking support lug (10) is internally connected with a locking bolt (5).
2. A composite tube for heat exchange according to claim 1, wherein: and a non-thickness interface is arranged between the copper pipe layer (2) and the steel pipe layer (1).
3. A composite tube for heat exchange according to claim 1, wherein: the cross section of the steel pipe layer (1) is 8-shaped.
4. A composite tube for heat exchange according to claim 1, wherein: the first locking lug (3) and the second locking lug (10) are completely the same in shape and material.
5. A composite tube for heat exchange according to claim 1, wherein: the inner surface of the steel pipe layer (1) is a smooth surface, and the outer surface of the copper pipe layer (2) is a smooth surface.
6. A composite tube for heat exchange according to claim 1, wherein: the wall thickness of the steel pipe layer (1) is 0.2-1.5 mm.
7. A composite tube for heat exchange according to claim 1, wherein: and a first magnet layer (6) is fixedly arranged on the right end surface of the copper pipe layer (2) and the right end surface of the steel pipe layer (1).
8. The composite tube for heat exchange according to claim 7, wherein: and a second magnet layer (7) matched with the first magnet layer (6) is fixedly arranged on the copper pipe layer (2) and the left end face of the steel pipe layer (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922316296.9U CN211651346U (en) | 2019-12-21 | 2019-12-21 | Composite pipe for heat exchange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922316296.9U CN211651346U (en) | 2019-12-21 | 2019-12-21 | Composite pipe for heat exchange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211651346U true CN211651346U (en) | 2020-10-09 |
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ID=72697730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922316296.9U Active CN211651346U (en) | 2019-12-21 | 2019-12-21 | Composite pipe for heat exchange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211651346U (en) |
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2019
- 2019-12-21 CN CN201922316296.9U patent/CN211651346U/en active Active
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