CN102914096A - Refrigerator titanium evaporator and processing method thereof - Google Patents

Abstract

The invention discloses a refrigerator titanium evaporator and a processing method thereof. The refrigerator titanium evaporator is made up of an evaporating tube and steel wires by welding. The surface of the evaporating tube and surfaces of the steel wires are provided with TiO2-containing titanium coatings containing CuO, Ag2O and ZnO. The titanium coatings are 1-3 micrometers in thickness. The processing method includes: bending the evaporating tube; welding the steel wires to the evaporating tube; cleaning the welded evaporator with cleanser, and defatting and drying; mixing mix with water and C2H6O5 to obtain hydrosol; dip-coating the hydrosol to the evaporator; and drying the hydrosol-coated evaporator to form the titanium evaporator. The refrigerator titanium evaporator is antibacterial and mould-proof, heat exchange efficiency of the evaporator can be improved, and the refrigerator titanium evaporator is user-friendly.

Description

A kind of refrigerator titanium evaporimeter and processing method thereof

Technical field

The present invention relates to refrigerator, more particularly relate to a kind of titanium evaporimeter and processing method thereof of use in refrigerator.

Background technology

As everyone knows, refrigerating evaporator is one of core component of refrigerator, and its heat transfer effect directly affects the refrigerating efficiency of refrigerator.The refrigerating evaporator of refrigerator is to be formed by evaporation tube and steel wire weld, and traditional evaporimeter is not have sterilizing function, and after using a period of time, evaporator surface is long-pending frost and dirt easily, forms the bacterium bed usually.Its harm is well imagined.Traditional evaporator surface adopts to soak moulds processing, and purpose is to avoid evaporimeter to get rusty, but this processing can reduce heat-transfer effect, increases energy consumption.

Summary of the invention

The technical problem to be solved in the present invention is to provide the titanium evaporimeter with degerming functions to reach

Its processing method, this evaporimeter have good antibacterial and mouldproof effect, can improve the heat exchanger effectiveness of evaporimeter simultaneously, and harmless.

Technical solution of the present invention is: a kind of refrigerator titanium evaporimeter, it is formed by evaporation tube and steel wire weld, has one deck to contain TiO on the surface of evaporation tube and steel wire ₂The titanium coating, described titanium coating contains CuO and Ag ₂O, the mass percent of described CuO is 10% ~ 15%, described Ag ₂The mass percent of O is 10% ~ 15%.

The TiO of described titanium coating ₂Mass percent be 60% ~ 70%, it is 5% ~ 10% ZnO that described titanium coating also contains mass percent.

Preferably, in the described titanium coating, the mass percent of each component is: TiO ₂Account for 65%, CuO accounts for 14%, Ag ₂O accounts for 14%, ZnO accounts for 7%.

The thickness of described titanium coating is at 1 ~ 3 micron.

A kind of processing method of refrigerator titanium evaporimeter is characterized in that may further comprise the steps.

With the evaporation tube bending and molding; With steel wire welded on evaporation tube; Wash the evaporimeter that welds with cleaning agent, and degreaser drying.

With TiO ₂, CuO, Ag ₂O, ZnO mixed-shaped resulting mixture, TiO in described mixture ₂Mass percent be that the mass percent of 60% ~ 70%, CuO is 10% ~ 15%, Ag ₂The mass percent of O is that the mass percent of 10% ~ 15%, ZnO is 5% ~ 10%.

With described mixture and water, C ₂H ₆O ₅Mix, stir by 1: 2: 0.1 ~ 1: 5.5: 0.2 mass percent, make the hydrosol.

With hydrosol dip-coating on evaporimeter.

The evaporator dry that is coated with the hydrosol is formed the titanium evaporimeter.

Compared with prior art, the present invention has following remarkable result.

Have sterilizing function and can improve the refrigerator of the titanium evaporimeter of heat transfer efficiency, it utilizes the powerful oxidative decomposition capacity of nano-titanium, can decompose, remove the various organic matters that are attached to the titania coating surface, has degermation, in order to decompose, to remove the various organic matters that are attached to titania surface, make not contamination dirt of evaporator surface, improve system's heat exchange efficiency.

1, because the titanium coating of evaporimeter contains CuO and Ag ₂O, even lack ultraviolet photocatalysis, titanium dioxide is at CuO, Ag ₂Under the effect of O, also can impel inner electronics to encourage, produce the hole of electronegative electronics and positively charged.Electronics makes the hydrogen reduction in air or the water, generates hydrogen peroxide, then works to the direction of oxidized surface hydrone in the hole, produces the basic atomic group of hydrogen-oxygen (hydroxyl).The basic atomic group of hydrogen peroxide and hydrogen-oxygen (hydroxyl) decomposes, removes the various organic substances that are attached to titania surface.Thereby make evaporimeter have the antibiotic except mould effect of long-term stability, during without purple light, titanium coating surface decomposition efficiency is that resolution ratio reached 100% when purple light was arranged more than 80%.

2, the titanium dioxide in the titanium coating not only has powerful oxidative decomposition capacity, but also is a kind of inorganic material, coating and evaporation tube and steel wire tight bond, and strong adhesion makes evaporimeter be not easy to be corroded, and makes the longer service life of evaporimeter.

3, it is better that the titanium coating is soaked the coating heat transfer efficiency of moulding evaporimeter than before, improves the heat transfer efficiency of evaporimeter.

Description of drawings

Fig. 1 is the stereogram of titanium evaporimeter of the present invention.

Fig. 2 is the structural representation of titanium evaporimeter of the present invention.

Fig. 3 is the structure cutaway view of evaporation tube of the present invention.

Fig. 4 is the process chart of titanium evaporimeter of the present invention.

The specific embodiment

The present invention will be further described below in conjunction with accompanying drawing.

See Fig. 1-4.The invention discloses a kind of refrigerator titanium evaporimeter, formed by evaporation tube 1 and steel wire 2, as shown in Figure 2.The surface of evaporation tube 1 and steel wire 2 has one deck to contain TiO ₂The titanium coating, the titanium coating contains CuO and Ag ₂O, the mass percent of described CuO is 10% ~ 15%, described Ag ₂The mass percent of O is 10% ~ 15%.Owing to contain CuO and Ag in the component of titanium coating ₂O, titanium dioxide is at CuO, Ag ₂Under the effect of O, also can impel inner electronics to encourage, produce the basic atomic group of hydrogen-oxygen (hydroxyl) and hydrogen peroxide, decomposing organic matter.Thereby make evaporimeter have the antibiotic except mould effect of long-term stability.

As shown in Figure 3, evaporation tube 1 has hydrophilic layer 3 and outermost titanium coating 4.Titanium coating 4 and hydrophilic layer 3 combinations have Superhydrophilic and super-oleophilic, compare with common hydrophilic coating, and evaporator surface is the contamination dirt not, and the aluminium foil anticorrosion is good, the life-span is long.

Titanium coating 4 is made by the hydrosol of titanium mixture, and component has TiO ₂, CuO, Ag ₂O, ZnO etc. can also add other inorganic additive.Wherein the main constituent mass degree of titanium mixture is: TiO ₂Account for 60% ~ 70%, CuO accounts for 10% ~ 15%, Ag ₂O accounts for 10% ~ 15%, ZnO accounts for 5% ~ 10%.Titanium mixture and water and C with above-mentioned mass percent ₂H ₆O ₅Mix by 1: 2: 0.1 ~ 1: 5.5: 0.2 mass percent, stir and make the hydrosol.The described hydrosol is attached to above the evaporimeter by the mode of soaking, form described titanium coating at evaporator surface after dry, the thickness of this titanium coating is at 1 ~ 3 micron, the main component of the titanium coating that forms after dry is the titanium mixture, wherein, the mass percent of each component remains unchanged substantially.With TiO ₂Account for 60% ~ 70%, CuO accounts for 10% ~ 15%, Ag ₂O accounts for 10% ~ 15%, ZnO accounts for the titanium coating that 5% ~ 10% ratio constitutes, and it is very desirable without photocatalysis, and it can also can decompose, remove the various organic ability that is attached to titania surface in unglazed situation.Wherein, a kind of preferred version is TiO ₂Account for 65%, CuO accounts for 14%, Ag ₂O accounts for 14%, ZnO accounts for 7%, and no matter utilize titanium coating that this preferred version makes is light to be arranged or can obtain the effect of preferably antibiotic scrubbing under unglazed state.

Above-mentioned refrigerator titanium coating evaporimeter, under the ultraviolet ray irradiation in sunlight or indoor light, nano titanium oxide just can produce under the photocatalysis, electronics in the titanium coating encourages, produce the hole of electronegative electronics and positively charged, electronics makes the hydrogen reduction in air or the water, generate hydrogen peroxide, then work to the direction of the hydrone of oxidized surface in the hole, produce the basic atomic group of hydrogen-oxygen (hydroxyl), thereby can decompose, removing is attached to the various organic matters of titanium coating surface, and decomposition efficiency is 100%, under unglazed environment, then by the nanometer CuO in the titanium coating, nanometer Ag ₂The catalysis of O, the electronics in the titanium coating also can produce the hole of electronegative electronics and positively charged, thereby form hydrogen peroxide and the basic atomic group of hydrogen-oxygen (hydroxyl), decompose, remove the various organic matters that are attached to the titanium coating surface, and its resolution ratio reaches more than 80%.

Below, with the antibiotic clean effect of the mode comparative illustration of tabulation refrigerator of the present invention with the titanium evaporimeter.

Below, the refrigerator of the present invention processing method of titanium coating evaporimeter is described.

Referring to Fig. 4, at first, will contain traditional evaporation tube forming elbow of hydrophilic layer, again with the steel wire weld moulding, after finishing, welding hunts leak, the qualified evaporimeter of hunting leak is washed with cleaning agent, and degreaser drying; Then, the mixing water colloidal sol of preparation titanium coating is placed on dip-coating formation titanium coating in the mixing water colloidal sol with evaporimeter, and the evaporimeter that will be coated with at last the titanium coating toasts in 110 ℃ ~ 150 ℃ temperature range, and stoving time is not less than 5 minutes.Wherein preferred baking temperature is 120 ± 0.5 ℃, and preferred stoving time is 5 ~ 6 minutes.Bake process can carry out in high temperature roaster or infrared oven or resistance furnace.The cleaning agent of evaporimeter can be selected anion surfactant and NaHCO ₃, one or more the alkaline inorganic matter such as NaOH is mixed in proportion.

The way that covers the titanium coating at evaporimeter can also be the mode of spraying, dry mode can be air-dry, the drying mode commonly used such as dry, dry.

Because the evaporimeter with the titanium coating that said components and processing method are made is after the illumination activation, at CuO and Ag ₂Under the catalysis of O, the dirt of fin surface, harmful molecular oxidation can be decomposed into innocuous substance.Coating contains Superhydrophilic simultaneously, makes the easier thawing of frost of evaporator surface, more is conducive to the heat exchange of evaporimeter, has energy-conservation and effect degerming.

Claims (5)

1. refrigerator titanium evaporimeter, it is formed by evaporation tube and steel wire weld, has one deck to contain TiO on the surface of evaporation tube and steel wire ₂The titanium coating, it is characterized in that: described titanium coating contains CuO and Ag ₂O, the mass percent of described CuO is 10%-15%, described Ag ₂The mass percent of O is 10%-15%.

2. a kind of refrigerator titanium evaporimeter as claimed in claim 1 is characterized in that: the TiO of described titanium coating ₂Mass percent be 60%-70%, described titanium coating also contains the ZnO that mass percent is 5%-10%.

3. a kind of refrigerator titanium evaporimeter as claimed in claim 1, it is characterized in that: in the described titanium coating, the mass percent of each component is: TiO ₂Account for 65%, CuO accounts for 14%, Ag ₂O accounts for 14%, ZnO accounts for 7%.

4. a kind of refrigerator titanium evaporimeter as claimed in claim 1, it is characterized in that: the thickness of described titanium coating is at the 1-3 micron.

5. the processing method of a refrigerator titanium evaporimeter is characterized in that may further comprise the steps:

With the evaporation tube bending and molding; With steel wire welded on evaporation tube; Wash the evaporimeter that welds with cleaning agent, and degreaser drying;

With TiO ₂, CuO, Ag ₂O, ZnO mixed-shaped resulting mixture, TiO in described mixture ₂Mass percent be 60%-70%, the mass percent of CuO is 10%-15%, Ag ₂The mass percent of O is 10%-15%, and the mass percent of ZnO is 5% ~ 10%;

With described mixture and water, C ₂H ₆O ₅By 1: 2: 0.1-1: 5.5: 0.2 mass percent is mixed, is stirred, and makes the hydrosol;

With hydrosol dip-coating on evaporimeter;

The evaporator dry that is coated with the hydrosol is formed the titanium evaporimeter.

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