CN104296582A - Self-cleaning type helical finned tube - Google Patents
Self-cleaning type helical finned tube Download PDFInfo
- Publication number
- CN104296582A CN104296582A CN201410494321.1A CN201410494321A CN104296582A CN 104296582 A CN104296582 A CN 104296582A CN 201410494321 A CN201410494321 A CN 201410494321A CN 104296582 A CN104296582 A CN 104296582A
- Authority
- CN
- China
- Prior art keywords
- self
- finned tube
- nano structure
- cleaning type
- fin
- 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.)
- Pending
Links
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
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/34—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely
- F28F1/36—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely the means being helically wound fins or wire spirals
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/18—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by applying coatings, e.g. radiation-absorbing, radiation-reflecting; by surface treatment, e.g. polishing
- F28F13/185—Heat-exchange surfaces provided with microstructures or with porous coatings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2215/00—Fins
- F28F2215/10—Secondary fins, e.g. projections or recesses on main fins
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2245/00—Coatings; Surface treatments
- F28F2245/04—Coatings; Surface treatments hydrophobic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2245/00—Coatings; Surface treatments
- F28F2245/08—Coatings; Surface treatments self-cleaning
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Geometry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention provides a self-cleaning type helical finned tube. The self-cleaning type helical finned tube comprises a base tube, fins, micro-nano structure layers and hydrophobic coatings; the fins are helically welded to the outer wall of the base tube, the end of each fin is fixedly connected with the base tube, the outer surfaces of exposed parts of the fins and the base tube are each provided with the micro-nano structure layer, and the micro-nano structure layers are covered with the hydrophobic coatings. The self-cleaning type helical finned tube has the self-cleaning function, accumulated dust on the surface of the finned tube can be greatly reduced, cleaning is convenient and rapid, and the heat exchange efficiency of the finned tube is guaranteed.
Description
Technical field
The invention belongs to heat abstractor technical field, especially relate to a kind of self-cleaning type spiral fin coil.
Background technology
In current existing heat transmission equipment, spiral fin coil is greatly improved because comparing to traditional finned tube and is widely used in extended surface enhanced heat exchange effect.For enhanced heat exchange, the spacing of fin of finned tube is usually very little, and fin area can account for more than 85% of total heat exchange area, but this also brings very large difficulty to the cleaning of finned tube dust stratification.The dirt dust on finned tube surface greatly can reduce the heat exchange efficiency of finned tube, if finned tube surface has self-cleaning function, then spiral fin coil in use dedusting very convenient fast even needs cleans dedusting, this will reduce the loss of manpower and materials greatly, ensures the heat exchange efficiency of finned tube simultaneously.
The many body surfaces of occurring in nature all have super-hydrophobic and self-cleaning function, the blade of the wing of such as butterfly, lotus leaf and other many plant.Wherein, foremost is the automatically cleaning phenomenon of lotus leaf surface.When lotus leaf surface has a globule, lotus leaf only need tilt a very little angle, and the globule just can tumble from lotus leaf surface, and the globule is also taken away the pollutants such as the dust of lotus leaf surface while rolling, thus keep lotus leaf surface clean, the automatically cleaning phenomenon of Here it is lotus leaf surface.This automatically cleaning phenomenon is caused by the super-hydrophobicity of body surface.And the super-hydrophobicity of body surface is determined jointly by material surface energy, surface roughness and surface micronano structure.Usually prepare super hydrophobic surface and have two kinds of approach: a kind of is carry out surface roughening process on the hydrophobic material surface with low-surface-energy; Another kind modifies low-surface energy substance on the surface with certain roughness.
Summary of the invention
The problem to be solved in the present invention is to provide a kind of self-cleaning type spiral fin coil, has self-cleaning function by the spiral fin coil after increasing surface roughness and low-surface energy substance modification.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of self-cleaning type spiral fin coil, comprise base tube, fin, micro nano structure layer, hydrophobic coating, described fin spiral welded is in the outer wall of base tube, and be fixedly connected with base tube by the end of fin, described fin and base tube outer surface have one deck micro nano structure layer, namely rat is of a size of micron or nanoscale, play the effect increasing finned tube surface roughness, micro nano structure layer covers one deck hydrophobic coating outward, the coating be namely made up of hydrophobic substance.
The preferred laser ablation preparation of described micro nano structure layer, laser etching techniques, pollution-free, accuracy is high.
Described hydrophobic coating preferably polytetrafluoroethylene coating, polytetrafluoroethylene (PTFE) has low-down surface energy, and corrosion-and high-temp-resistant is good.
Use the present invention, after there is dirt on finned tube surface, only need carries out simple drip washing or rinse.When there is water droplet on finned tube surface, water drop contact be the hydrophobic coating on finned tube surface, micro nano structure layer due to finned tube surface adds the roughness on surface, the contact area of water droplet and finned tube reduces, water droplet more not easily adheres to finned tube surface, water droplet from finned tube roll drop while also can take away dust on finned tube and dirt, produce " lotus leaf effect ", reach self-cleaning effect.
The advantage that the present invention has and good effect are: this self-cleaning type helical fin tube-surface has micro nano structure layer and hydrophobic coating, has self-cleaning function, greatly can reduce the dust stratification on finned tube surface, ensure the heat exchange efficiency of finned tube.
Accompanying drawing explanation
Fig. 1 is self-cleaning type Influences of Structure of Spiral Finned Tube schematic diagram
Fig. 2 is self-cleaning type spiral fin coil surface A place close-up schematic view
In figure: 1, base tube, 2, fin, 3, micro nano structure layer, 4, hydrophobic coating.
Detailed description of the invention
Below in conjunction with accompanying drawing, specific embodiments of the invention are elaborated.
As depicted in figs. 1 and 2, a kind of self-cleaning type spiral fin coil, comprise base tube 1, fin 2, micro nano structure layer 3, hydrophobic coating 4, described fin 2 spiral welded is in the outer wall of base tube 1, and be fixedly connected with base tube 1 by the end of fin 2, described fin 2 and base tube 1 outer surface have one deck micro nano structure layer 3, and micro nano structure layer 3 is outer covers one deck hydrophobic coating 4.
Use the present invention, after there is dirt on finned tube surface, only need carries out simple drip washing or rinse.When there is water droplet on finned tube surface, water drop contact be the hydrophobic coating 4 on finned tube surface, micro nano structure layer 3 due to finned tube surface adds the roughness on surface, the contact area of water droplet and finned tube reduces, water droplet more not easily adheres to finned tube surface, water droplet from finned tube roll drop while also can take away dust on finned tube and dirt, produce " lotus leaf effect ", reach self-cleaning effect.
Above one embodiment of the present of invention have been described in detail, but described content being only preferred embodiment of the present invention, can not being considered to for limiting practical range of the present invention.All equalizations done according to the present patent application scope change and improve, and all should still belong within patent covering scope of the present invention.
Claims (3)
1. a self-cleaning type spiral fin coil, it is characterized in that: comprise base tube (1), fin (2), micro nano structure layer (3), hydrophobic coating (4), described fin (2) spiral welded is in the outer wall of base tube (1), and be fixedly connected with base tube (1) by the end of fin (2), described fin (2) and base tube (1) outer surface have one deck micro nano structure layer (3), and micro nano structure layer (3) covers one deck hydrophobic layer (4) outward.
2. a kind of self-cleaning type spiral fin coil according to claim 1, is characterized in that: described micro nano structure layer is laser ablation preparation.
3. a kind of self-cleaning type spiral fin coil according to claim 1, is characterized in that: described hydrophobic coating is polytetrafluorethylecoatings coatings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410494321.1A CN104296582A (en) | 2014-09-24 | 2014-09-24 | Self-cleaning type helical finned tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410494321.1A CN104296582A (en) | 2014-09-24 | 2014-09-24 | Self-cleaning type helical finned tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104296582A true CN104296582A (en) | 2015-01-21 |
Family
ID=52316419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410494321.1A Pending CN104296582A (en) | 2014-09-24 | 2014-09-24 | Self-cleaning type helical finned tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104296582A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110763055B (en) * | 2019-08-23 | 2021-03-16 | 西安交通大学 | Surface hydrophobic modified composite condensation enhanced heat transfer pipe and preparation method thereof |
| CN113134709A (en) * | 2021-03-26 | 2021-07-20 | 中科听海(苏州)电子科技有限责任公司 | Preparation method of super-hydrophobic gradient coating for corrosion prevention of undersea sonar shell |
-
2014
- 2014-09-24 CN CN201410494321.1A patent/CN104296582A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110763055B (en) * | 2019-08-23 | 2021-03-16 | 西安交通大学 | Surface hydrophobic modified composite condensation enhanced heat transfer pipe and preparation method thereof |
| CN113134709A (en) * | 2021-03-26 | 2021-07-20 | 中科听海(苏州)电子科技有限责任公司 | Preparation method of super-hydrophobic gradient coating for corrosion prevention of undersea sonar shell |
| CN113134709B (en) * | 2021-03-26 | 2023-08-22 | 中科听海(苏州)电子科技有限责任公司 | Preparation method of super-hydrophobic gradient coating for corrosion prevention of submarine sonar shell |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Syafiq et al. | Advances in approaches and methods for self-cleaning of solar photovoltaic panels | |
| CN104196085B (en) | Bionic water collector | |
| CN110041741A (en) | A kind of automatically cleaning super-amphiphobic coating and preparation method thereof of efficiently catchmenting | |
| CN103359684A (en) | Hydrophobic surface, preparation method and application thereof in dropwise condensation heat transfer | |
| CN206082204U (en) | Mesopore ceramic membrane with strong antipollution structure | |
| CN104374123B (en) | A kind of micro-channel heat exchanger | |
| CN104296582A (en) | Self-cleaning type helical finned tube | |
| CN205655731U (en) | Novel self -cleaning clean air cooler fin | |
| CN204085291U (en) | A kind of self-cleaning type spiral fin coil | |
| CN104748603A (en) | Method for improving heat exchange effect of heat exchanger with steam as heat source | |
| CN104390480A (en) | Multilayer spraying evaporative condenser | |
| KR20130057238A (en) | Process for preparing a transfer film for super-hydrophobic and super-hydrorepellent | |
| JP2017506731A (en) | Coating that selectively absorbs radiation and method for obtaining the coating at ambient temperature | |
| CN202024527U (en) | Efficient threaded solar energy vacuum heat-collecting tube | |
| CN201748048U (en) | Weldable plastic-coated steel-plastic pipe | |
| CN103641330B (en) | A kind of porcelain and glass insulator Low-temperature antifreeze coating and preparation method thereof | |
| CN204001052U (en) | A kind of biomimetic water catchment device | |
| CN202002535U (en) | Heat exchange pipe with inner spiral sawtoothed fins | |
| CN202581892U (en) | High-performance solar vacuum pipe | |
| CN206971528U (en) | Self-clean type building film material | |
| CN203980997U (en) | A kind of Novel hot exchanging tube | |
| CN206626282U (en) | A kind of anticorrosion hollow copper tubing | |
| CN205825476U (en) | A kind of solar energy vacuum tube being provided with dividing plate | |
| CN203364478U (en) | Heat collection pipe | |
| CN102653456A (en) | Superhydrophobic glass and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150121 |