CN215003129U - Copper steel base graphite polytetrafluoroethylene heat exchange tube - Google Patents
Copper steel base graphite polytetrafluoroethylene heat exchange tube Download PDFInfo
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- CN215003129U CN215003129U CN202120868306.4U CN202120868306U CN215003129U CN 215003129 U CN215003129 U CN 215003129U CN 202120868306 U CN202120868306 U CN 202120868306U CN 215003129 U CN215003129 U CN 215003129U
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Abstract
The utility model discloses a copper steel base graphite polytetrafluoroethylene heat transfer tubular product, including a pipe body, the body includes convection heat transfer layer, heat-conducting layer one, resistance to pressure layer, heat-conducting layer two and the anticorrosive coating that constitutes from inside to outside. The utility model has the characteristics of high pressure resistant, corrosion-resistant, high heat conduction, high strength, be suitable for extensive using widely.
Description
Technical Field
The utility model relates to the technical field of pipes, in particular to copper steel base graphite polytetrafluoroethylene heat transfer tubular product.
Background
In the power generation and chemical industry, a large amount of low-temperature acidic flue gas waste heat is discharged, the temperature is about 50-120 ℃, in order to recover the part of heat, a heat exchanger made of common steel is in the long-term operation process, and finally, the pipe is difficult to avoid low-temperature corrosion, so that the service life is seriously low.
In order to reliably recover the waste heat of the low-temperature and acidic flue gas for a long time, a pressure-resistant, corrosion-resistant and high-heat-transfer-property pipe is required. Although the pressure resistance of the current common steel pipe is excellent, the corrosion resistance of the current common steel pipe is poor; although the polytetrafluoroethylene tube has excellent corrosion resistance, the high pressure resistance and the heat conduction performance of the polytetrafluoroethylene tube are slightly insufficient.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model aims to provide a copper steel base graphite polytetrafluoroethylene heat exchange pipe, which can have the pressure resistance of a common steel pipe and has good flowing heat transfer characteristic and corrosion resistance.
In order to realize the purpose, the utility model discloses a technical scheme is:
the copper-steel-based graphite polytetrafluoroethylene heat exchange pipe comprises a pipe body, wherein the pipe body comprises a convection heat exchange layer 1, a heat conduction layer I2, a pressure resistance layer 3, a heat conduction layer II 4 and an anti-corrosion layer 5 which are formed from inside to outside.
The convective heat transfer layer 1 is made of copper.
The first heat conduction layer 2 and the second heat conduction layer 4 are formed by filling graphite powder.
The pressure-resistant layer 3 is made of steel.
The anticorrosive layer 5 is made of polytetrafluoroethylene.
The thickness of the convection heat exchange layer 1 is 1 mm-2 mm, the thickness of the first heat conduction layer 2 is 0.5 mm-1 mm, the thickness of the pressure-resistant layer 3 is 2 mm-50 mm, the thickness of the second heat conduction layer 4 is 0.5 mm-1 mm, and the thickness of the anticorrosive layer 5 is 0.5-2 mm.
The utility model has the advantages that:
(1) the copper pipe is used as the convection heat exchange layer, so that the heat exchange effect between a flowing medium in the pipe and the pipe can be obviously improved;
(2) the copper and steel pipes are used as base materials, so that the pressure resistance of the polytetrafluoroethylene pipe can be greatly improved, the pressure resistance of the polytetrafluoroethylene pipe is superior to that of common steel, and the requirement on working medium pressure in low-temperature heat storage and transmission is met.
(2) The copper and steel pipe layers are isolated from air in use, so that corrosion is avoided, and the service life of the pipe is prolonged.
(3) Graphite is used as a heat-conducting medium of the middle layer of the pipe to be prepared by a filling process, so that the heat exchange performance of the heat exchange pipe is obviously enhanced.
(4) The outer layer of the pipe is made of polytetrafluoroethylene, so that the corrosion of acidic gas on the pipe is avoided, and the pipe is particularly used in a low-temperature range and has stronger durability.
(5) The thickness of the convection heat exchange layer is set to be 1 mm-2 mm, the thickness of the first heat conduction layer is 0.5 mm-1 mm, the thickness of the pressure resistant layer is 2 mm-50 mm, the thickness of the second heat conduction layer is 0.5 mm-1 mm, and the thickness of the corrosion resistant layer is 0.5-2 mm, so that on one hand, the heat exchange thermal resistance of fluid inside and outside the pipe can be effectively reduced, on the other hand, corrosive gas outside the pipe is isolated from steel and copper materials for a long time, and meanwhile, the structural strength of the heat exchange pipe is ensured.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1: the utility model provides a copper steel base graphite polytetrafluoroethylene heat transfer tubular product, includes the body, and the body is the loop configuration, the body includes from inside to outside constituting convection current heat transfer layer 1, heat-conducting layer one 2, voltage resistance layer 3, heat-conducting layer two 4 and anticorrosive coating 5.
The convection heat transfer layer 1 is made of copper, and can remarkably improve the heat transfer effect between a flowing medium in a pipe and the pipe.
The heat conducting layer I2 and the heat conducting layer II 4 are formed by filling graphite powder, so that the heat exchange performance of the heat exchange tube is remarkably enhanced.
The pressure-resistant layer 3 is made of steel, and meets the requirements on working medium pressure in low-temperature heat storage and transmission.
The anticorrosive coating 5 is made of polytetrafluoroethylene, so that the corrosion of acidic gas on the pipe is avoided, and the pipe is particularly used in a low-temperature range and has stronger durability.
The thickness of the convection heat exchange layer 1 is 1 mm-2 mm, the thickness of the first heat conduction layer 2 is 0.5 mm-1 mm, the thickness of the pressure-resistant layer 3 is 2 mm-50 mm, the thickness of the second heat conduction layer 4 is 0.5 mm-1 mm, and the thickness of the anticorrosive layer 5 is 0.5-2 mm.
The utility model discloses the performance data of the graphite polytetrafluoroethylene heat transfer tubular product of copper steel base that makes are as follows:
TABLE 1 Steel-based PTFE heat exchange tubing performance data
The above examples are only for further illustration of the present invention, and should not be interpreted as limiting the scope of the present invention, and the non-essential modifications and adjustments made by those skilled in the art according to the above descriptions are included in the scope of the present invention.
Claims (6)
1. The copper-steel-based graphite polytetrafluoroethylene heat exchange pipe is characterized by comprising a pipe body, wherein the pipe body comprises a convection heat exchange layer (1), a heat conduction layer I (2), a pressure resistance layer (3), a heat conduction layer II (4) and an anticorrosive layer (5) which are formed from inside to outside.
2. The copper steel based graphite polytetrafluoroethylene heat exchange tube material as recited in claim 1, characterized in that said convective heat exchange layer (1) is machined from copper.
3. The copper-steel-based graphite polytetrafluoroethylene heat exchange tube material as recited in claim 1, wherein the first heat conduction layer (2) and the second heat conduction layer (4) are formed by filling graphite powder.
4. The copper-steel based graphite polytetrafluoroethylene heat exchange tube material as recited in claim 1, wherein said pressure resistance layer (3) is made of steel.
5. The copper-steel based graphite polytetrafluoroethylene heat exchange tube material as recited in claim 1, wherein said corrosion protection layer (5) is made of polytetrafluoroethylene.
6. The copper-steel-based graphite polytetrafluoroethylene heat exchange tube as recited in claim 1, wherein the thickness of the convective heat exchange layer (1) is 1 mm-2 mm, the thickness of the first heat conduction layer (2) is 0.5 mm-1 mm, the thickness of the pressure resistance layer (3) is 2 mm-50 mm, the thickness of the second heat conduction layer (4) is 0.5 mm-1 mm, and the thickness of the corrosion resistance layer (5) is 0.5-2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120868306.4U CN215003129U (en) | 2021-04-25 | 2021-04-25 | Copper steel base graphite polytetrafluoroethylene heat exchange tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120868306.4U CN215003129U (en) | 2021-04-25 | 2021-04-25 | Copper steel base graphite polytetrafluoroethylene heat exchange tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215003129U true CN215003129U (en) | 2021-12-03 |
Family
ID=79091828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120868306.4U Active CN215003129U (en) | 2021-04-25 | 2021-04-25 | Copper steel base graphite polytetrafluoroethylene heat exchange tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215003129U (en) |
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2021
- 2021-04-25 CN CN202120868306.4U patent/CN215003129U/en active Active
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