CN103196317A - Two-layer composite low-density finned tube for air cooler - Google Patents
Two-layer composite low-density finned tube for air cooler Download PDFInfo
- Publication number
- CN103196317A CN103196317A CN 201310124295 CN201310124295A CN103196317A CN 103196317 A CN103196317 A CN 103196317A CN 201310124295 CN201310124295 CN 201310124295 CN 201310124295 A CN201310124295 A CN 201310124295A CN 103196317 A CN103196317 A CN 103196317A
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- tube
- air cooler
- finned tube
- density
- composite low
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention relates to a two-layer composite low-density finned tube for an air cooler. The two-layer composite low-density finned tube for the air cooler comprises a base tube which is a round tube with a smooth surface. The two-layer composite low-density finned tube for the air cooler is characterized in that an outer-layer aluminum tube is arranged on the outer surface of the base tube, fins are arranged on the surface of the outer-layer aluminum tube, the axial direction of the base is identical to the width direction of the fins, the direction of the fins protruding out of the outer-layer aluminum tube is the height direction, the ratio of the height of the fins to distance between adjacent fins is 1.1-1.4. The thickness of the wall of the base tube ranges from 1.5 to 6mm, and the thickness of the wall of the outer-layer aluminum tube ranges from 0.5 to 1mm. By the two-layer composite low-density finned tube for the air cooler, the problem that fin spaces of existing high-density finned tube are blocked is solved, heat transfer efficiency of the finned tube is improved, and the two-layer composite low-density finned tube has great pressure resistant property and anti-corrosion resistance.
Description
Technical field
The present invention relates to a kind of finned tube, especially a kind of two-layer compound low-density finned tube for air cooler.
Background technology
Generally in the existing air cooler adopt the steel aluminium compound circular tube, thereby common steel aluminium compound circular tube can prevent corrosion but the little heat exchange efficiency that causes of heat exchange area is low.And adopt the air cooler of fountain finned tube (the ratio of width to height 〉=2) that 2 fatal shortcomings are arranged: (1) is little owing to gap between fin, and foreign material, sand, incrustation scale are easy to stop up the fin gap; When (2) water sprays into, because the gap is little, be difficult for penetrating finned-tube bundle; Therefore, along with pass service time, heat exchange efficiency descends, and injection flow rate strengthens, and water consumption strengthens too many.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of two-layer compound low-density finned tube for air cooler is provided, have withstand voltage properties preferably, solved the problem of stopping up the fin gap.
According to technical scheme provided by the invention, a kind of two-layer compound low-density finned tube for air cooler, comprise parent tube, parent tube is ganoid pipe, feature is: the outer surface at described parent tube arranges outer aluminum pipe, and the surface of outer aluminum pipe arranges fin, and the axial of parent tube is the width of fin, the direction that fin protrudes from outer aluminum tube surfaces is short transverse, and the height of fin is 1.1～1.4 with the ratio of the spacing of adjacent fins.
The wall thickness of described parent tube is 1.5～6mm.
The thickness of described outer aluminum pipe is 0.5～1mm.
Two-layer compound low-density finned tube for air cooler of the present invention has solved the problem that existing highly dense finned tube stops up the fin gap, has improved the heat transfer efficiency of finned tube; And finned tube of the present invention has withstand voltage and corrosion resistance preferably.
Description of drawings
Fig. 1 is structural representation of the present invention.
The specific embodiment
The invention will be further described below in conjunction with concrete accompanying drawing.
As shown in Figure 1: described two-layer compound low-density finned tube for air cooler comprises parent tube 1, parent tube 1 is ganoid pipe, outer surface at parent tube 1 arranges outer aluminum pipe 2, the surface of outer aluminum pipe 2 arranges fin 3, the axial of parent tube 1 is the width of fin 3, and the direction that fin 3 protrudes from outer aluminum pipe 2 surfaces is short transverse, and the height of fin 3 is 1.1～1.4 with the ratio of the spacing of adjacent fins 3, can improve the heat transfer efficiency of finned tube, solve the problem of stopping up the fin gap;
The wall thickness of described parent tube 1 is 1.5～6mm, and wall thickness is thicker, is used for bearing pressure; The thickness of described outer aluminum pipe 2 is 0.5～1mm, and wall thickness is thinner, is used for resisting dielectric corrosion, improves heat exchange efficiency;
It is the carbon steel material of 10Mn, 20Mn, 16Mn or 15CrMo that described parent tube 1 adopts the trade mark, and described fin 3 adopts aluminum, makes finned tube have withstand voltage and corrosion resistance preferably.
Claims (3)
1. two-layer compound low-density finned tube that is used for air cooler, comprise parent tube (1), parent tube (1) is ganoid pipe, it is characterized in that: the outer surface at described parent tube (1) arranges outer aluminum pipe (2), the surface of outer aluminum pipe (2) arranges fin (3), the axial of parent tube (1) is the width of fin (3), the direction that fin (3) protrudes from outer aluminum pipe (2) surface is short transverse, and the ratio of the spacing of the height of fin (3) and adjacent fins (3) is 1.1～1.4.
2. the two-layer compound low-density finned tube for air cooler as claimed in claim 1, it is characterized in that: the wall thickness of described parent tube (1) is 1.5～6mm.
3. the two-layer compound low-density finned tube for air cooler as claimed in claim 1, it is characterized in that: the thickness of described outer aluminum pipe (2) is 0.5～1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310124295 CN103196317A (en) | 2013-04-10 | 2013-04-10 | Two-layer composite low-density finned tube for air cooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310124295 CN103196317A (en) | 2013-04-10 | 2013-04-10 | Two-layer composite low-density finned tube for air cooler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103196317A true CN103196317A (en) | 2013-07-10 |
Family
ID=48719023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201310124295 Pending CN103196317A (en) | 2013-04-10 | 2013-04-10 | Two-layer composite low-density finned tube for air cooler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103196317A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140217190A1 (en) * | 2011-08-25 | 2014-08-07 | I.R.C.A. S.P.A. Industria Resistenze Corazzata eAf | A tubular section bar for a biphasic radiator and relative biphasic radiator |
| CN105910484A (en) * | 2016-04-27 | 2016-08-31 | 江苏广旭热管科技有限公司 | Composite finned tube |
-
2013
- 2013-04-10 CN CN 201310124295 patent/CN103196317A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140217190A1 (en) * | 2011-08-25 | 2014-08-07 | I.R.C.A. S.P.A. Industria Resistenze Corazzata eAf | A tubular section bar for a biphasic radiator and relative biphasic radiator |
| US9488378B2 (en) * | 2011-08-25 | 2016-11-08 | I.R.C.A. S.P.A. Industria Resistenze Corazzate E Afffini | Tubular section bar for a biphasic radiator and relative biphasic radiator |
| CN105910484A (en) * | 2016-04-27 | 2016-08-31 | 江苏广旭热管科技有限公司 | Composite finned tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130710 |