CN1190633C - Manufacturing method of super hydrophili finned sheet and air conditioning heat exchanger - Google Patents
Manufacturing method of super hydrophili finned sheet and air conditioning heat exchanger Download PDFInfo
- Publication number
- CN1190633C CN1190633C CNB011278900A CN01127890A CN1190633C CN 1190633 C CN1190633 C CN 1190633C CN B011278900 A CNB011278900 A CN B011278900A CN 01127890 A CN01127890 A CN 01127890A CN 1190633 C CN1190633 C CN 1190633C
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- China
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- heat exchanger
- air conditioner
- fin
- water
- making method
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Abstract
The present invention relates to the field of an air conditioner, particularly to a manufacturing method of fins of an air conditioner heat exchanger and the air conditioner heat exchanger. The present invention has the manufacturing method that a nanometer phhotocatalyst colloidal sol is used for dipping and coating the aluminum fins of the heat exchanger, the fins are dried and baked to form a macroscopic, continuous and firm nanometer inorganic oxide film layer, and the aluminum fins are manufactured into the air conditioner heat exchanger according to a normal mode. The hydrophile performance of the fins reaches or exceeds the performance of an organic precoating aluminum foil. Water can not form water drops on an aluminum sheet, and completely spreads on the surface of the aluminum sheet to form a uniform water film. Therefore, a water bridge can not be generated, heat exchange quantity and heat exchange speed rate between the aluminum foil and the flowing air are improved. Because the film layer of the surface of the aluminum foil of the heat exchanger is a high activity photocatalyst, air flowing through the heat exchanger can be purified, and formaldehyde, benzene, oil fume and other organic harmful gases in the air are oxidized and decomposed into harmless water and harmless carbon dioxide.
Description
Technical field
The present invention relates to the conditioner field, be specifically related to a kind ofly, the invention still further relates to a kind of air-condition heat exchanger that adopts above-mentioned fin to make by obtaining having the fin of Superhydrophilic and photocatalysis Decomposition obnoxious flavour after the surface of fin in the air-condition heat exchanger is handled.
Background technology
In the prior art, small-sized, multi-functional and high energy efficiency is than the developing direction that is domestic air conditioner.Interchanger is one of core component of conditioner, and its heat exchange performance directly influences the serviceability of conditioner.Air-condition heat exchanger is made of with the parallel aluminous fin that is through on this copper pipe copper pipe.The heat transfer process of conditioner comprises two heat exchange steps between refrigerant and interchanger, interchanger and the fluidizing air.Heat exchange between refrigerant and the interchanger is finished by copper pipe, and the heat exchange between interchanger and the fluidizing air is finished by aluminous fin.Last process generally adopts inner screw thread copper pipe to increase heat interchanging area raising heat-exchange capacity; The back one process relative complex some, reduce spacing of fin increase number of fins and help increasing heat interchanging area, improve heat exchange efficiency, but when spacing of fin reduces, water of condensation can be because wicking action forms " water bridge " between fin, this not only can make the windage of conditioner and noise increase, but also can make air-conditioning " blowing water " phenomenon occur, and the people is done not feel like oneself.In order to solve this a pair of contradiction, conditioner manufacturer now extensively adopts the aluminium foil of precoating hydrophilic layer to make interchanger, but because this class hydrophilic film mostly is high molecular polymer, heat conductivility is bad, and the result is that wetting ability has improved, and thermal conductivity has but descended.Obviously, adopt the aluminium foil of organic precoated hydrophilic film can not farthest improve the heat exchange efficiency of interchanger.
Another development trend of domestic air conditioning is to realize multifunction.Conditioner uses in closed environment, and indoor air is more and more dirty, causes the people to produce uncomfortable sensation, and promptly so-called " air conditioning disease " has a strong impact on the healthy of people.In order to address this problem, a lot of manufacturers are provided with the filtering net that adopts various sorbent materials to make on the wind path of conditioner, adsorb and remove harmful substances in air.Though this method has the improvement of certain effect to air quality because the restriction of loading capacity, exist adsorptive capacity little, saturated, the problem such as can't regenerate of absorption is arranged, and make the adsorbed contaminants desorption easily, cause secondary pollution.
Summary of the invention
The technical problem that the present invention will solve is, a kind of heat exchanger of air conditioner aluminium fin making method is provided, can make fin not only have Superhydrophilic, do not hang the globule, be difficult for forming " water bridge ", can also keep high heat transfer property, another technical problem that the present invention will solve provides a kind of multi-functional air conditioner interchanger that adopts above-mentioned fin to make, can make interchanger have the photochemical catalytic oxidation ability, can remove simultaneously and be harmful to, have flavor gas in the working space, characteristics such as having multi-functional, high-level efficiency, less energy-consumption, " do not blow water ", the life-span is long.
Technical scheme provided by the invention is: a kind of making method of heat exchanger of air conditioner fin is provided, it is characterized in that, comprise the steps:
Aluminous fin is also dry with the clean-out system washes clean;
On the aluminous fin surface after the drying treatment, cover one deck nano-photocatalyst colloidal sol;
Surface coverage is had the aluminous fin of nano-photocatalyst colloidal sol carry out roasting in 100 ℃-600 ℃ temperature range, roasting time is 0.1～5 hour.
In the making method of above-mentioned heat exchanger of air conditioner fin, described clean-out system is a kind of employing anion surfactant and alkaline inorganics NaHCO
3, Na
2CO
3, NaOH, KHCO
3, K
2CO
3, a kind of or two kinds of mixed solution prepared in proportion with water among the KOH.In the described scavenging solution, the weight proportion scope of anion surfactant, alkaline inorganics and water is 0.1: 0.1: 99.8-10.0: 10.0: 80.
In the making method of above-mentioned heat exchanger of air conditioner fin, that the drying mode in the described drying step can be is air-dry, oven dry, dry naturally or dry.
In the making method of above-mentioned heat exchanger of air conditioner fin, described nano-photocatalyst colloidal sol is a kind of by TiO
2With other inorganic additives Al
2O
3, SiO
2, MoO
3, WO
3, Pt hydrochlorate, ZrO
2, CuO, SnO
2, MnO
2, Fe
2O
3In the water-sol that is mixed with of one or more and water.In the described water-sol, TiO
2, inorganic additives and water the weight proportion scope be 1: 0.01: 98.99-40: 40: 20.
In the making method of above-mentioned heat exchanger of air conditioner fin, described calcination steps is a nano-photo catalytic colloidal sol at the crystallizing and sintering of fin aluminium foil surface and the photocatalyst roasting cohesive process at aluminium foil surface.
In the making method of above-mentioned heat exchanger of air conditioner fin, the temperature range of described roasting is 100 ℃-600 ℃, and roasting time is 0.1～5 hour.
A kind of heat exchanger of air conditioner is provided, comprises aluminous fin, it is characterized in that, be coated with filming of one deck nano-photocatalyst colloidal sol formation at least on the surface of described aluminous fin.
Above-mentioned according to heat exchanger of air conditioner provided by the invention in, described nano-photocatalyst colloidal sol is a kind of by TiO
2With other inorganic additives Al
2O
3, SiO
2, MoO
3, WO
3, Pt hydrochlorate, ZrO
2, CuO, SnO
2, MnO
2, Fe
2O
3In the water-sol that is mixed with of one or more and water.In the described water-sol, TiO
2, inorganic additives and water the weight proportion scope be 1: 0.01: 98.99-40: 40: 20.
Implement the making method and the air-condition heat exchanger of air-condition heat exchanger fin provided by the invention, adopt to have the nano-coating layer of the catalyzer of photic strong oxidizing property and Superhydrophilic as aluminium matter heat-exchange fin.Transparent continuously on this rete macroscopic view, porous, bigger on the microcosmic than the surface-area of fin itself.Under unglazed condition, the hydrophilicity of heat exchanger fin meets or exceeds the performance of organic precoated aluminium foil; Under light activated situation, water does not form water droplet on aluminium flake, become even moisture film at surface spreading fully.This interchanger has been stopped the generation of water bridge, make heat and heat exchange rate between aluminium foil and the flowing air improve greatly, thereby can reduce the volume of conditioner on the structure, save material and reduce cost, simultaneously, the raising of heat exchange efficiency also helps reducing the energy consumption of conditioner, the person's of economizing in consumption use spending.In addition, because the superficial film of interchanger aluminium foil is a high-activity photocatalyst, in attemperation, the air that interchanger is passed through in convection current can carry out purifying treatment, makes oxidized harmless water and the carbonic acid gas of being decomposed into of formaldehyde in the air, benzene, oil smoke and other organic obnoxious flavour.This photocatalysis performance is the same with super hydrophilicity, can keep for a long time, during degradation, can recover after the illumination.Further specify the present invention with specific embodiment below.
Embodiment
Making method provided by the invention is: the aluminous fin that comes the dip-coating interchanger with a kind of nano-photocatalyst colloidal sol, drying and roasting process make it to form macroscopical successive, firm nano inorganic oxide rete, make air-condition heat exchanger in a conventional manner with this aluminium foil then.
Above-mentioned nano-photocatalyst colloidal sol is the water-sol, is to adopt TiO
2With other inorganic additives Al
2O
3, SiO
2, MoO
3, WO
3, Pt hydrochlorate, ZrO
2, CuO, SnO
2, MnO
2, Fe
2O
3In mixed the forming of one or more and water.In the described water-sol, TiO
2, inorganic additives and water the weight proportion scope can be at 1: 0.01: 98.99-40: select between 40: 20.
When making this aluminium fin, need wash the aluminium fin with clean-out system earlier and dry.Clean-out system can adopt anion surfactant, NaHCO
3, Na
2CO
3, NaOH, KHCO
3, K
2CO
3, a kind of or two kinds of certainty ratios among the KOH mix.Washing process can adopt modes such as drip washing, immersion; That drying process can adopt is air-dry, oven dry, dry naturally or mode such as drying; The plated film mode can adopt dipping, lift, smear or mode such as spraying; Roasting process can carry out in high temperature oven or retort furnace or infrared rays baker, and maturing temperature can be selected between 100～600 ℃, and roasting time is 0.1～5 hour.Interchanger adopts and is made according to a conventional method by the fin of made of the present invention, and interchanger is meant vaporizer, the condenser in the common air-conditioning, is made of copper pipe and metal fin.
In the selection of above-mentioned maturing temperature, the temperature range that can further be chosen as 100 ℃-400 ℃ or 100 ℃-250 ℃ is carried out roasting, and roasting time can further be chosen as 0.1～3.5 hour or 0.1～1.5 hour.
Clean-out system is a kind of employing anion surfactant and alkaline inorganics NaHCO
3, Na
2CO
3, NaOH, KHCO
3, K
2CO
3, a kind of or two kinds of mixed solution prepared in proportion with water among the KOH.In the described scavenging solution, the weight proportion scope of anion surfactant, alkaline inorganics and water can be at 0.1: 0.1: 99.8-10.0: select between 10.0: 80.
The surface coverage that is made by above-mentioned technology and method has the aluminium fin of photocatalytic nanometer composite material film and interchanger to have following characteristic: film body is transparent or semitransparent, and thickness is between 0.1～1000 nanometer, and is wear-resisting acidproof corrosion-resistant; Fin is after the illumination activation, and the surface can drop to below 5 ° the contact angle of water, and can keep high-hydrophilic for a long time, can recover automatically under illumination after the inefficacy; The interchanger that makes does not form " water bridge ", and the plated film fin is filmed between fin and the normal aluminium foil fin between organosilicon prepolymer along the thermal conductivity of normal direction; Rete has porousness and large specific surface, obnoxious flavour molecule in heat transfer process in the energy absorbed air, particularly at normal temperatures and have under the condition of ultraviolet or visible light, obnoxious flavour oxygenolysis that can various pollutions are indoor is materials such as harmless carbonic acid gas and water, makes air keep pure and fresh.
The present invention compared with prior art has the following advantages:
(1) the present invention has adopted catalyzer with photic strong oxidizing property and Superhydrophilic nano-coating layer as aluminium matter heat-exchange fin, and is transparent continuously on the rete macroscopic view, and porous on the microcosmic, specific surface area are big.Under unglazed condition, heat exchanger fin and hydrophilicity meet or exceed the level of organic precoated aluminium foil; Under light activated situation, water does not form water droplet on aluminium flake, become even moisture film at surface spreading fully, has stopped the generation of water bridge.This Superhydrophilic can keep for a long time, need not light source and constantly shines, and during degradation, short period of time illumination can recover fully.
(2) interchanger that adopts the aluminium foil of plated with photocatalysis film to make, heat and heat exchange rate between the air that aluminium foil and stream pass through improve greatly, help reducing the volume of conditioner, save material and reduce cost, simultaneously, the raising of heat exchange efficiency also helps reducing the energy consumption of conditioner, the person's of economizing in consumption use spending.
(3) because the superficial film of interchanger aluminium foil is a high-activity photocatalyst, in attemperation, the air that interchanger is passed through in convection current can carry out purifying treatment, and formaldehyde, benzene, oil smoke and other organic obnoxious flavour can oxidizedly be decomposed into harmless water and carbonic acid gas in the air.
Claims (12)
1, a kind of making method of heat exchanger of air conditioner fin is characterized in that, comprises the steps:
Aluminous fin is also dry with the clean-out system washes clean;
Aluminous fin surface coverage last layer thickness after drying treatment is the nanometer photocatalyst film of 0.1～1000 nanometer;
Surface coverage is had the aluminous fin of nanometer photocatalyst film carry out roasting in 100 ℃-600 ℃ temperature range, roasting time is 0.1～5 hour.
According to the making method of the described heat exchanger of air conditioner fin of claim 1, it is characterized in that 2, described clean-out system is a kind of employing anion surfactant and NaHCO
3, Na
2CO
3, NaOH, KHCO
3, K
2CO
3, a kind of or two kinds of mixed solution prepared by a certain percentage with water among the KOH, wherein the weight proportion of anion surfactant, alkaline inorganics and water is a kind of in 0.1: 0.1: 99.8 to 10.0: 10.0: 80.
According to the making method of the described heat exchanger of air conditioner fin of claim 1, it is characterized in that 3, that the drying mode in the described drying step can be is air-dry, oven dry, dry naturally or dry.
According to the making method of the described heat exchanger of air conditioner fin of claim 1, it is characterized in that 4, described nanometer photocatalyst film is a kind of by TiO
2With other inorganic additives Al
2O
3, SiO
2, MoO
3, WO
3, Pt hydrochlorate, ZrO
2, CuO, SnO
2, MnO
2, Fe
2O
3In one or more and water mixedly by a certain percentage form described TiO
2With the weight proportion of other inorganic additives and water be a kind of in 1: 0.01: 98.99 to 40: 40: 20.
According to the making method of the described heat exchanger of air conditioner fin of claim 1, it is characterized in that 5, described calcination steps is a crystallizing and sintering in a kind of High Temperature Furnaces Heating Apparatus.
According to the making method of the described heat exchanger of air conditioner fin of claim 1, it is characterized in that 6, the temperature range during described roasting is 100 ℃-400 ℃, roasting time is 0.1～3.5 hour.
According to the making method of the described heat exchanger of air conditioner fin of claim 6, it is characterized in that 7, described roasting time is 0.1～1.5 hour.
According to the making method of the described heat exchanger of air conditioner fin of claim 1, it is characterized in that 8, the temperature range during described roasting is 100 ℃-250 ℃, roasting time is 0.1～3.5 hour.
9, the making method of described according to Claim 8 heat exchanger of air conditioner fin is characterized in that, described roasting time is 0.1～1.5 hour.
According to the making method of the described heat exchanger of air conditioner fin of claim 1, it is characterized in that 10, the mode of described covering can be to soak to be covered, apply or spray.
11, a kind of heat exchanger of air conditioner comprises aluminous fin, it is characterized in that, has the nano photocatalyst film that a layer thickness is 0.1～1000 nanometer on the surface of described aluminous fin.
According to the described heat exchanger of air conditioner of claim 11, it is characterized in that 12, described nano photocatalyst film is a kind of by TiO
2With other inorganic additives Al
2O
3, SiO
2, MoO
3, WO
3, Pt hydrochlorate, ZrO
2, CuO, SnO
2, MnO
2, Fe
2O
3In the mixed water-sol that forms of one or more and water, described TiO
2With the weight proportion of other inorganic additives and water be a kind of in 1: 0.01: 98.99 to 40: 40: 20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011278900A CN1190633C (en) | 2001-09-24 | 2001-09-24 | Manufacturing method of super hydrophili finned sheet and air conditioning heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011278900A CN1190633C (en) | 2001-09-24 | 2001-09-24 | Manufacturing method of super hydrophili finned sheet and air conditioning heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1410721A CN1410721A (en) | 2003-04-16 |
| CN1190633C true CN1190633C (en) | 2005-02-23 |
Family
ID=4667800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011278900A Expired - Fee Related CN1190633C (en) | 2001-09-24 | 2001-09-24 | Manufacturing method of super hydrophili finned sheet and air conditioning heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1190633C (en) |
Cited By (1)
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|---|---|---|---|---|
| CN104169674A (en) * | 2012-03-29 | 2014-11-26 | 株式会社神户制钢所 | Aluminum fin material for heat exchanger |
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| CN101655334A (en) * | 2009-09-07 | 2010-02-24 | 浙江正理生能科技有限公司 | Nano hydrophilic film for evaporator in air source heat pump water heater and manufacturing method thereof |
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| CN103112210A (en) * | 2012-12-31 | 2013-05-22 | 黄山天马铝业有限公司 | Super-hydrophilic antibacterial aluminum foil and preparation method thereof |
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| CN107754754A (en) * | 2017-09-19 | 2018-03-06 | 浙江工业大学 | A kind of composite of titanium sponge loading alumina particle and its preparation method and application |
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| CN112175485A (en) * | 2020-09-29 | 2021-01-05 | 上海符立制冷设备有限公司 | Super-hydrophilic coating, heat exchanger and heat exchanger surface treatment method |
-
2001
- 2001-09-24 CN CNB011278900A patent/CN1190633C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104169674A (en) * | 2012-03-29 | 2014-11-26 | 株式会社神户制钢所 | Aluminum fin material for heat exchanger |
| CN104169674B (en) * | 2012-03-29 | 2016-08-24 | 株式会社神户制钢所 | Aluminum fin material for heat exchanger |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1410721A (en) | 2003-04-16 |
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