CN206410594U - A kind of finned heat exchanger - Google Patents
A kind of finned heat exchanger Download PDFInfo
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- CN206410594U CN206410594U CN201720029425.4U CN201720029425U CN206410594U CN 206410594 U CN206410594 U CN 206410594U CN 201720029425 U CN201720029425 U CN 201720029425U CN 206410594 U CN206410594 U CN 206410594U
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- Prior art keywords
- fin
- heat exchanger
- finned heat
- hydrophobic
- hydrophilic
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Abstract
The utility model discloses a kind of finned heat exchanger, being related to technical field of heat exchangers, there is provided a kind of finned heat exchanger that fin drainage speed is fast, windage is small.A kind of finned heat exchanger of the utility model, including multiple fins being mounted side by side vertically, multiple fins are arranged at intervals, and on the relative surface of the two neighboring fin, are simultaneously coated with hydrophilic layer, another side is coated with hydrophobic layer.A kind of finned heat exchanger of the utility model is used to carry out heat exchange.
Description
Technical field
The utility model is related to technical field of heat exchangers, more particularly to a kind of finned heat exchanger.
Background technology
Finned heat exchanger is gas and a kind of the most widely used heat transmission equipment, existing fin in liquid heat exchanger
Formula heat exchanger has complete hydrophobic finned heat exchanger and complete hydrophilic finned heat exchanger.
The fin two sides of complete hydrophobic finned heat exchanger is coated with hydrophobic coating in the prior art, is exchanged heat in heat exchanger
When, can condense on the hydrophobic coating of fin has the small water droplet between many small water droplets, adjacent fins that the spacing between fin is reduced,
The windage of full hydrophobic heat exchanger is caused to increase, heat exchange efficiency reduction.
The fin of another complete hydrophilic finned heat exchanger, its two sides is coated with hydrophilic coating, changed in heat exchanger
When hot, moisture film can be formed on the hydrophilic coating of fin, moisture film needs to reach after a certain amount, could rely on gravity fall, therefore,
The drainage speed of full hydrophilic heat exchanger is slower, easy frosting.
Utility model content
Embodiment of the present utility model provides a kind of finned heat exchanger, it is possible to provide a kind of fin drainage speed is fast, windage is small
Finned heat exchanger.
To reach above-mentioned purpose, embodiment of the present utility model is adopted the following technical scheme that:
A kind of finned heat exchanger, including multiple fins being mounted side by side vertically, multiple fins are arranged at intervals, and adjacent two
On the relative surface of the individual fin, hydrophilic layer is simultaneously coated with, another side is coated with hydrophobic layer.
The finned heat exchanger that the utility model embodiment is provided, due on the relative surface of two adjacent fins, simultaneously applying
Hydrophilic layer is covered with, another side is coated with hydrophobic layer, the small water droplet condensed on hydrophobic layer touches the hydrophilic layer surface of adjacent fins
Moisture film after, merged with the moisture film of the hydrophilic layer surface of adjacent fins, making the weight of moisture film increases, thus accelerate fin draining speed
Degree, reduces the frosting degree of heat exchanger, and is reduced during this between small water droplet on adjacent fins hydrophobic layer, increase fin
Spacing, therefore, reduces the windage of finned heat exchanger.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the principle schematic of the utility model embodiment finned heat exchanger;
Fig. 2 is Fig. 1 partial schematic diagram;
The part-structure that Fig. 3 is staggered installation of for hydrophilic fin in the utility model embodiment finned heat exchanger and hydrophobic fin
Schematic diagram;
Fig. 4 shows for the part-structure that multiple fins in the utility model embodiment finned heat exchanger are hydrophilic-hydrophobic fin
It is intended to;
Fig. 5 is that the part-structure of hydrophilic fin and hydrophilic-hydrophobic fin in the utility model embodiment finned heat exchanger is illustrated
Figure;
Fig. 6 is that the part-structure of hydrophobic fin and hydrophilic-hydrophobic fin in the utility model embodiment finned heat exchanger is illustrated
Figure;
Fig. 7 is hydrophilic fin, hydrophobic fin and hydrophilic-hydrophobic fin in the utility model embodiment finned heat exchanger
Part-structure schematic diagram;
Fig. 8 is part-structure schematic diagram of the fin provided with anticorrosive coat in the utility model embodiment finned heat exchanger;
Fig. 9 is the structural representation of the utility model embodiment finned heat exchanger.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
In description of the present utility model, it is to be understood that term " " center ", " on ", " under ", "front", "rear",
The orientation or position relationship of the instruction such as "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " is based on accompanying drawing institutes
The orientation or position relationship shown, is for only for ease of description the utility model and simplifies description, rather than indicate or imply and be signified
Device or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this practicality
New limitation.
Finned heat exchanger is in heat transfer process, and when the temperature of air is less than dew-point temperature, can be condensed on the surface of fin has
Water, under gravity, the water on fin fall after overcoming the surface tension of fin surface.
A kind of finned heat exchanger in reference picture 1~2, the utility model embodiment, including multiple wings being mounted side by side vertically
Piece 1, multiple fins 1 are arranged at intervals, wherein, on adjacent its relative surface of two fins, hydrophilic layer 11 is simultaneously coated with, separately
Simultaneously it is coated with hydrophobic layer 12.
The finned heat exchanger that the utility model embodiment is provided, due on the relative surface of two adjacent fins, simultaneously applying
Hydrophilic layer 11 is covered with, another side is coated with hydrophobic layer 12, the small water droplet condensed on hydrophobic layer 12 touches adjacent fins hydrophilic
After the moisture film of layer surface, merged with the moisture film of the hydrophilic layer surface of adjacent fins, making the weight of moisture film increases, so as to accelerate fin
Drainage speed, reduces the frosting degree of heat exchanger, and the small water droplet on adjacent fins hydrophobic layer is reduced during this, increases wing
Spacing between piece, therefore, reduces the windage of finned heat exchanger.
To ensure that on the relative surface of two adjacent fins be simultaneously hydrophilic layer, another side is hydrophobic layer, alternatively, fin
Heat exchanger is coated with the hydrophilic fin 101 of hydrophilic layer including two sides and two sides is coated with the hydrophobic fin 102 of hydrophobic layer segment, will
The technical scheme that both hydrophilic fin 101 and hydrophobic fin 102 are staggered installation of, as shown in Figure 3;Multiple wings in finned heat exchanger
Piece 1 also can be that one side is coated with hydrophilic layer 11, and another side is coated with the technical side of the hydrophilic-hydrophobic fin 103 of hydrophobic layer 12
Case, as shown in Figure 4;Certainly, the technical scheme that can be also combined using above two scheme, finned heat exchanger includes hydrophilic-hydrophobic wing
Piece 103 and hydrophilic fin 101, or hydrophilic-hydrophobic fin 103 and hydrophobic fin 102, or hydrophilic-hydrophobic fin 103, hydrophilic fin
101 and hydrophobic fin 102, the technical scheme that both or three kinds of fins are rationally arranged, as shown in Fig. 5~7.Above-mentioned three kinds
In scheme, the first scheme can directly using in existing hydrophilic finned heat exchanger and hydrophobic finned heat exchanger fin system
Process, but need using two kinds of fins, scheme is more complicated, it is necessary to be staggered installation of;The third fin uses hydrophilic-hydrophobic fin
103 and hydrophilic fin 101, or hydrophilic-hydrophobic fin 103 and hydrophobic fin 102, or hydrophilic-hydrophobic fin 103, hydrophilic fin 101
And hydrophobic fin 102, the two or more fins of use are, it is necessary to the erection sequence for various fins of rationally arranging, at these three
This programme installation operation is the most complicated in scheme;The utility model embodiment uses the wing in second scheme, finned heat exchanger
Piece uses hydrophilic-hydrophobic fin 103, and installation operation is simple.
Alternatively, applied to improve in fin corrosion resistance, the utility model embodiment between fin 1 and hydrophilic layer 11
The first anticorrosive coat 13 is covered with, and the second anticorrosive coat 14 is coated between fin 1 and hydrophobic layer 12, as shown in figure 8, so as to keep away
Fin is damaged because of corrosion during exempting from long-term work.
In order to ensure that the small water droplet condensed on any fin hydrophobic layer can contact the moisture film in adjacent fins on hydrophilic layer,
Alternatively, it is 1.2~2mm by the spacing L of two adjacent fins, if as shown in figure 9, the spacing L of two adjacent fins is more than
Spacing between 2mm, fin is excessive, and the small water droplet of the major part condensed on hydrophobic layer is not readily accessible in adjacent fins on hydrophilic layer
Moisture film, causes condensed water larger the windage of gas fin;If the spacing L of two adjacent fins is less than between 1.2mm, fin
Spacing is too small, and windage of the fin gas fin in itself is larger.
The material of above-mentioned hydrophilic layer 11 can use organic coating or inorganic coating with hydrophilic interaction, alternatively, this reality
Can be acrylic resin systems with the material of hydrophilic layer in new embodiment 11, specifically, can be by acrylate monomer, work(
Energy property auxiliary agent and mixed with resin are formed.When condensed water condenses in acrylic resin coating, the contact angle of condensed water is smaller, with compared with
Good hydrophilicity so that drainage effect is preferable.Wherein, functional aid can be to include Nano Silver sustained release silver ion disinfectant
Or containing Si, Fe, Cu, Mn, Zn, the auxiliary agent of Ti chemical compositions.
In addition, on the utility model embodiment fin 1 hydrophilic layer 11 thickness T1, its span is 0.3~2 μm, if
The thickness T of hydrophilic layer 11 on fin 11More than 2 μm, hydrophilic layer 11 is blocked up, and the hydrophilicity of fin is not improved, and influence is changed
Heat;If the thickness T of hydrophilic layer 11 on fin 11Less than 0.3 μm, hydrophilic layer 11 is excessively thin, influences the hydrophilicity of fin, draining effect
Rate is relatively low.
The material of above-mentioned hydrophobic layer 12 can be used with the organic coating or inorganic coating for rubbing water effect, alternatively, this reality
Can be for the organic material of fluorine-containing system or containing SiO with the material of new embodiment hydrophobic layer 122Inorganic material, specifically,
Can be fluorinated acrylate, fluororesin, the organic or inorganic coating of organic-silicon-modified fluorinated monomer.
When condensed water is condensed on hydrophobic coating, the contact angle of condensed water is larger, with preferable hydrophobic performance so that dredge
Water droplet on water layer is easier to contact with the moisture film in adjacent fins, so as to accelerate the drainage speed of fin.
Further, on the utility model embodiment fin 1 hydrophobic layer 12 thickness T2, its span is 0.3~2 μ
M, if on fin 1 hydrophobic layer 12 thickness T2More than 2 μm, hydrophobic layer 12 is blocked up, influences the heat exchange efficiency of fin;If on fin 1
The thickness T of hydrophobic layer 122Less than 0.3 μm, hydrophobic layer 12 is excessively thin, and the hydrophobic performance of fin is poor, is easily formed on hydrophobic layer 12
Moisture film, leads to not the drainage efficiency for improving heat exchanger.
Fin 1 in the utility model embodiment is made using aluminium foil, the thickness T spans of fin 1 for 0.09~
0.12mm, if the thickness T of fin 1 is more than 0.12mm, the thickness of fin 1 is excessive, causes the spacing of fin to reduce, and windage increases
Plus;If the thickness T of fin 1 is less than 0.09mm, the thickness of fin 1 is too small, fin structure intensity decreases, easily damage, fin
Heat exchange amount reduces, the heat exchange efficiency reduction of heat exchanger.
Pass through the parameter designing to fin 1 in above-described embodiment so that hydrophilic layer 11 and hydrophobic layer 12 are coated in fin 1
Afterwards, moisture film is less than 35 degree in the contact angle of coating surface on hydrophilic layer 11, and water droplet connects in the static state of coating surface on hydrophobic layer 12
Feeler is more than 110 °.If moisture film is more than 35 degree, the moisture film of hydrophilic layer surface formation in the contact angle of coating surface on hydrophilic layer 11
Smoothness is relatively low, and the thickness of moisture film is larger in subregion, for the larger bottom of finned heat exchanger water accumulating volume or slitted fin
Surface, is easily overlapped to form water bridge, increases the windage of heat exchanger, causes to lower by the air quantity of heat exchanger, efficiency of heat exchanger
Reduction;If water droplet is less than 110 ° in the static contact angle of coating surface on hydrophobic layer 11, need on fin hydrophobic layer it is longer when
Between could form larger-diameter water droplet, so as to touch the moisture film of adjacent fins hydrophilic layer, therefore, the drainage speed of fin compared with
It is low.
In addition, fin 1 in the utility model embodiment can use all kinds, such as plain film, corrugated plate or slotted sheet, because
This, the finned heat exchanger of the utility model embodiment, its application is wider, it is adaptable to existing various finned heat exchangers.
It is described above, embodiment only of the present utility model, but protection domain of the present utility model do not limit to
In this, any one skilled in the art can readily occur in change in the technical scope that the utility model is disclosed
Or replace, it should all cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should be with the power
The protection domain that profit is required is defined.
Claims (10)
1. a kind of finned heat exchanger, including multiple fins being mounted side by side vertically, multiple fins are arranged at intervals, its feature exists
In on the relative surface of the two neighboring fin, being simultaneously coated with hydrophilic layer, another side is coated with hydrophobic layer.
2. finned heat exchanger according to claim 1, it is characterised in that the one side of the fin is coated with described hydrophilic
Layer, another side is coated with the hydrophobic layer.
3. finned heat exchanger according to claim 2, it is characterised in that be coated between the fin and the hydrophilic layer
First anticorrosive coat, is coated with the second anticorrosive coat between the fin and the hydrophobic layer.
4. finned heat exchanger according to claim 1, it is characterised in that the spacing L of two neighboring fin value
Scope is 1.2~2mm.
5. finned heat exchanger according to claim 1, it is characterised in that the material of the hydrophilic layer is by acrylate list
Body, functional aid and mixed with resin are formed.
6. finned heat exchanger according to claim 1, it is characterised in that the thickness T of the hydrophilic layer1Span be
0.3~2 μm.
7. finned heat exchanger according to claim 1, it is characterised in that the material of the hydrophobic layer is fluorine-containing
Ester, fluororesin, organic-silicon-modified fluorinated monomer or SiO2Organic or inorganic coating.
8. finned heat exchanger according to claim 1, it is characterised in that the hydrophobic layer thickness T2Span be 0.3
~2 μm.
9. finned heat exchanger according to claim 1, it is characterised in that the thickness T of fin span is
0.09~0.12mm.
10. finned heat exchanger according to claim 1, it is characterised in that the fin is plain film, corrugated plate or cracked
Piece.
Priority Applications (1)
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CN201720029425.4U CN206410594U (en) | 2017-01-11 | 2017-01-11 | A kind of finned heat exchanger |
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CN201720029425.4U CN206410594U (en) | 2017-01-11 | 2017-01-11 | A kind of finned heat exchanger |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106767116A (en) * | 2017-01-11 | 2017-05-31 | 海信科龙电器股份有限公司 | A kind of finned heat exchanger |
CN110345674A (en) * | 2019-07-02 | 2019-10-18 | 中安瑞材(北京)科技有限公司 | A kind of radiating fin and preparation method thereof |
-
2017
- 2017-01-11 CN CN201720029425.4U patent/CN206410594U/en active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106767116A (en) * | 2017-01-11 | 2017-05-31 | 海信科龙电器股份有限公司 | A kind of finned heat exchanger |
CN110345674A (en) * | 2019-07-02 | 2019-10-18 | 中安瑞材(北京)科技有限公司 | A kind of radiating fin and preparation method thereof |
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