CN111609558B - Method for preventing water pipe from being corroded and water heater using same - Google Patents
Method for preventing water pipe from being corroded and water heater using same Download PDFInfo
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- CN111609558B CN111609558B CN202010413297.XA CN202010413297A CN111609558B CN 111609558 B CN111609558 B CN 111609558B CN 202010413297 A CN202010413297 A CN 202010413297A CN 111609558 B CN111609558 B CN 111609558B
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- water
- water pipe
- hydrophilic
- area
- hydrophobic
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 226
- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 33
- 238000005260 corrosion Methods 0.000 claims description 15
- 230000007797 corrosion Effects 0.000 claims description 15
- 239000003795 chemical substances by application Substances 0.000 claims description 10
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 5
- 239000007769 metal material Substances 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 238000005406 washing Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/12—Arrangements for connecting heaters to circulation pipes
- F24H9/13—Arrangements for connecting heaters to circulation pipes for water heaters
- F24H9/139—Continuous flow heaters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
- B05D7/146—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies to metallic pipes or tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1832—Arrangement or mounting of combustion heating means, e.g. grates or burners
- F24H9/1836—Arrangement or mounting of combustion heating means, e.g. grates or burners using fluid fuel
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
Abstract
The invention discloses a method for preventing a water pipe from being corroded and a water heater using the same, wherein the method for preventing the water pipe from being corroded comprises the following steps: s1, dividing the water pipe into a hydrophilic area and a hydrophobic area, wherein the hydrophilic area is the horizontal part of the water pipe, and the hydrophobic area is the inclined and vertical part of the water pipe; s2, performing hydrophilic treatment on the outer surface of the water pipe in the hydrophilic area to form a hydrophilic layer with hydrophilicity; condensed water in the hydrophilic area can form a water film on the hydrophilic layer to be quickly volatilized; the condensed water in the hydrophobic area is condensed into water drops on the outer surface of the water pipe in the hydrophobic area, flows downstream to the hydrophilic area, collapses on the hydrophilic layer to form a water film and is quickly volatilized. The water heater comprises a water heater body and a water pipe treated by applying the method, wherein the water pipe is wound on the outer surface of a burner of the water heater body. According to the invention, water drops in the hydrophobic region slide on the hydrophilic layer to form a water film, so that the water film can be quickly volatilized, and the condensate water is prevented from being attached to the surface of the water pipe for a long time to corrode the water pipe.
Description
Technical Field
The invention belongs to the technical field of water heaters, and particularly relates to a method for preventing a water pipe from being corroded and a water heater using the same.
Background
In the long-term use process of the gas water heater, the phenomenon of water leakage of a water pipe wound on the surface of a box body inside the gas water heater often occurs, and thus the complaint of a user is caused. At present, a water pipe on the surface of an internal box body of a water heater is usually made of an oxygen-free copper pipe, condensed water on the surface of the water pipe has strong corrosivity on the copper pipe when the water heater works, the copper pipe is corroded in certain areas due to the fact that the condensed water exists in a hanging mode for a long time, and perforated water leakage is caused in places with serious corrosion. In the statistics of the water leakage positions of the water pipes, the positions are found to be the most. This phenomenon is particularly acute in areas where gas water heaters are used in areas of poor water quality or severe humidity.
Disclosure of Invention
In order to solve the problems of the prior art, an object of the present invention is to provide a method for preventing a water pipe from being corroded and a water heater using the same, which can effectively prevent the water pipe of the water heater from being corroded by condensed water.
In order to achieve the above object, the present invention firstly provides a method for preventing corrosion of a water pipe of a water heater, comprising the steps of:
s1, dividing the water pipe into a hydrophilic area and a hydrophobic area, wherein the hydrophilic area is the horizontal part of the water pipe, and the hydrophobic area is the inclined and vertical part of the water pipe;
s2, performing hydrophilic treatment on the outer surface of the water pipe in the hydrophilic area to form a hydrophilic layer with hydrophilicity; condensed water in the hydrophilic area can form a water film on the hydrophilic layer to be quickly volatilized; the condensed water in the hydrophobic area is condensed into water drops on the outer surface of the water pipe in the hydrophobic area, flows downstream to the hydrophilic area, collapses on the hydrophilic layer to form a water film and is quickly volatilized.
Further, in step S2, the water pipe surface in the hydrophilic region is subjected to hydrophilic treatment, specifically, a hydrophilic agent is coated on the water pipe surface in the hydrophilic region to form a hydrophilic layer.
Further, the outer surface of the water pipe in the hydrophobic area is a smooth surface with hydrophobicity.
Further, the hydrophilic agent is a treatment agent containing hydroxyl particles.
Further, the hydrophilic layer has a thickness of 0.1 to 50 μm.
Further, the contact angle of the hydrophilic layer with water is less than 15 °.
Further, step S1 includes coiling the water pipe around the outer surface of the burner of the water heater.
Further, step S2 includes washing the hydrophilic region with clean water after the hydrophilic treatment is completed, and then performing a drying treatment.
The invention also provides a water heater, which comprises a water heater body and a water pipe made of metal materials and treated by applying the method for preventing the water pipe from being corroded, wherein the water pipe is wound on the outer surface of a burner of the water heater body, and the outer surface of the water pipe is provided with a hydrophilic layer and a smooth surface with hydrophobicity.
Compared with the prior art, the invention has the beneficial effects that: the condensed water is not easy to form water drops on the hydrophilic layer and only can form a water film, the area of the water film is larger than that of the water drops, and the outer surface of the water pipe in the hydrophilic area is easy to volatilize, so the hydrophilic area is not easy to be corroded by the condensed water; at the hydrophobic district of water pipe, be the metal material because of the water pipe, its surface is hydrophobic characteristic, these positions though can condense hang water, nevertheless because the surface tension characteristic of water and the hydrophobicity on water pipe surface lead to forming big water droplet very easily, the water droplet is under the action of gravity, very easily drops or because the effect of water droplet surface tension, the water droplet flows to the hydrophilic district of water pipe horizontal position along the water pipe surface, forms the water film in hydrophilic district, volatilizees fast to hydrophobic district water pipe corrosion has also been avoided.
Drawings
FIG. 1 is a schematic view of a water pipe according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the structure of a hydrophilic region and a hydrophobic region according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The first embodiment is as follows:
the embodiment of the invention provides a method for preventing a water pipe from being corroded, which is used for preventing the water pipe of a water heater from being corroded and comprises the following steps:
s1, dividing the water pipe into a hydrophilic area 1 and a hydrophobic area 2, wherein the hydrophilic area 1 is a horizontal part of the water pipe and the hydrophobic area 2 is an inclined and vertical part of the water pipe as shown in figure 1;
s2, performing hydrophilic treatment on the outer surface of the water pipe in the hydrophilic area 1, and forming a hydrophilic layer 11 with hydrophilicity as shown in figure 2; the condensed water in the hydrophilic region 1 can form a water film on the hydrophilic layer 11 to be quickly volatilized; the condensed water in the hydrophobic region 2 is condensed into water drops on the outer surface of the water pipe in the hydrophobic region 2, flows downstream to the hydrophilic region 1, is collapsed into a water film on the hydrophilic layer 11 and is quickly volatilized.
By adopting the method, the condensed water is not easy to form water drops on the hydrophilic layer 11 to hang water, only a water film can be formed, the area of the water film is larger than that of the water drops, and the water film is easy to volatilize on the outer surface of the water pipe in the hydrophilic area 1, so the hydrophilic area 1 is not easy to be corroded by the condensed water; at the hydrophobic region 2 of water pipe, because of the water pipe is the metal material, its surface is hydrophobic characteristic, these positions though can condense hanging water, nevertheless because the surface tension characteristic of water and the hydrophobicity on water pipe surface lead to forming big water droplet very easily, the water droplet is under the action of gravity, very easily drop or because the effect of water droplet surface tension, the water droplet flows to water pipe horizontal position's hydrophilic region 1 along the water pipe surface, form the water film on hydrophilic layer 11, volatilize fast, thereby also avoided hydrophobic region water pipe corrosion.
It should be noted that, no technical solution has been used in the field of water heater technology to apply the technical characteristics of hydrophilicity and hydrophobicity for preventing water pipe corrosion; however, the technical characteristics and principles of hydrophilicity and hydrophobicity in this embodiment are generally known to those skilled in the art.
In step S2, the water pipe surface of the hydrophilic region 1 is subjected to hydrophilic treatment, specifically, a hydrophilic agent is coated on the water pipe surface of the hydrophilic region 1 to form a hydrophilic layer 11. Therefore, the condensed water can not form large water drops on the surface of the hydrophilic layer 11, and can only collapse into a water film with a large area, so that the condensed water can be quickly volatilized.
The outer surface of the water pipe of the hydrophobic area 2 is a smooth surface 21 with hydrophobicity; this forms a hydrophobic layer on which the condensed water condenses into water droplets which then slide down under tension and gravity to the horizontal hydrophilic layer 11.
The hydrophilic agent is a treating agent containing hydroxyl particles; the hydroxyl has stronger hydrophilicity, so that the outer surface of the water pipe has stronger hydrophilicity.
The thickness of the hydrophilic layer 11 is 0.1-50 μm; such a thickness ensures sufficient hydrophilicity of the hydrophilic layer 11, and also reduces the manufacturing cost.
The contact angle of the hydrophilic layer 11 and water is less than 15 degrees; therefore, the condensed water can form a water film with a larger area on the surface of the hydrophilic layer 11, the volatilization of the water film is accelerated, and the corrosion effect of the condensed water on the water pipe is reduced.
Step S1 of the present embodiment further includes coiling the water pipe around the outer surface of the burner 3 of the water heater. Can increase the area of contact of water pipe and combustor 3 like this on the one hand, make the water rate of heating in the water pipe increase, on the other hand can form a plurality of hydrophilic districts 1 and hydrophobic district 2, does benefit to the comdenstion water and volatilizees fast in hydrophilic district 1.
Step S2 further includes washing the hydrophilic region 1 with clean water after the hydrophilic treatment is completed, and then performing a drying treatment; thus, impurities in the hydrophilic region 1 can be washed away, and the hydrophilicity can be improved.
In this embodiment, the water pipe may be a copper pipe, a stainless steel pipe, or a water pipe made of other metal materials.
The specific process of this embodiment is as follows:
firstly, winding a water pipe on the outer surface of a burner 3 of a water heater; then, spraying a treating agent containing hydroxyl particles on the horizontal part of the water pipe to form a hydrophilic layer 11; and finally, washing the hydrophilic region 1 with clear water, and then drying. On the one hand the comdenstion water forms the water film in hydrophilic district 1, can volatilize fast, and on the other hand the comdenstion water forms the water droplet at hydrophobic district 2, nevertheless leads to very easily forming big water droplet because the surface tension characteristic of water and the hydrophobicity on water pipe surface, and the water droplet is very easily dropped or because the effect of water droplet surface tension, and the water droplet flows to water pipe horizontal position's hydrophilic district 1 along the water pipe surface, forms the water film in hydrophilic district 1, volatilizes fast. Thus, the hydrophilic area 1 and the hydrophobic area 2 of the water pipe avoid the problem of corrosion caused by long-term adhesion of condensed water.
The embodiment has simple process and low production cost, and is suitable for mass production and manufacturing of enterprises.
Example two
The second embodiment provides a water heater, which comprises a water heater body and a water pipe treated by applying the method for preventing the water pipe from being corroded, wherein the water pipe is wound on the outer surface of a burner of the water heater body.
The outer surface of the horizontal part of the water pipe is provided with a hydrophilic layer with hydrophilicity, and the outer surfaces of the inclined part and the vertical part of the water pipe are smooth surfaces with hydrophobicity. The water droplet of hydrophobic layer is in the same direction as smooth hydrophilic layer under the effect of tension and gravity, forms the water film at hydrophilic layer, volatilizes fast, reduces the detention time, and the comdenstion water can not be attached to on the water pipe surface for a long time, has consequently avoided the danger by the corruption.
The water pipe of this embodiment preparation simple process, low in manufacturing cost can effectually prevent that the water pipe from being corroded by the comdenstion water.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. A method for preventing corrosion of a water pipe of a water heater, comprising the steps of:
s1, dividing the outer surface of the water pipe into a hydrophilic area and a hydrophobic area, wherein the hydrophilic area is the horizontal part of the water pipe, and the hydrophobic area is the inclined and vertical part of the water pipe;
s2, performing hydrophilic treatment on the outer surface of the water pipe in the hydrophilic area to form a hydrophilic layer with hydrophilicity; the condensed water in the hydrophilic area can form a water film on the hydrophilic layer to be quickly volatilized; and the condensed water in the hydrophobic area is condensed into water drops on the outer surface of the water pipe in the hydrophobic area, flows downstream to the hydrophilic area, collapses into a water film on the hydrophilic layer and is quickly volatilized.
2. The method for preventing corrosion of water pipe according to claim 1, wherein in step S2, the water pipe surface of the hydrophilic region is subjected to hydrophilic treatment, specifically, a hydrophilic agent is coated on the water pipe surface of the hydrophilic region to form a hydrophilic layer.
3. The method of claim 2, wherein the outer surface of the water pipe in the hydrophobic region is a smooth surface with hydrophobic properties.
4. The method for preventing corrosion of a water pipe according to claim 3, wherein the hydrophilic agent is a treatment agent containing hydroxyl group particles.
5. The method for preventing corrosion of a water pipe according to any one of claims 1 to 4, wherein the thickness of the hydrophilic layer is 0.1 to 50 μm.
6. The method for preventing corrosion of a water pipe according to claim 5, wherein the contact angle of the hydrophilic layer with water is less than 15 °.
7. The method for preventing corrosion of water pipe according to claim 6, further comprising winding said water pipe around the outer surface of the burner 3 of the water heater at step S1.
8. The method for preventing corrosion of water pipe according to claim 4, further comprising, in step S2, after the hydrophilic treatment, rinsing the hydrophilic region with clean water, and drying.
9. A water heater comprising a water heater body and a water pipe of a metal material treated by the method for preventing corrosion of the water pipe according to any one of claims 1 to 8, wherein the water pipe is wound around an outer surface of a burner of the water heater body, and the outer surface of the water pipe is provided with a hydrophilic layer and a smooth surface having hydrophobicity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010413297.XA CN111609558B (en) | 2020-05-15 | 2020-05-15 | Method for preventing water pipe from being corroded and water heater using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010413297.XA CN111609558B (en) | 2020-05-15 | 2020-05-15 | Method for preventing water pipe from being corroded and water heater using same |
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| Publication Number | Publication Date |
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| CN111609558A CN111609558A (en) | 2020-09-01 |
| CN111609558B true CN111609558B (en) | 2022-01-07 |
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| JPH112497A (en) * | 1997-06-13 | 1999-01-06 | Furukawa Electric Co Ltd:The | Heat exchanger |
| AU6122499A (en) * | 1998-10-15 | 2000-05-01 | Nihon Parkerizing Company Limited | Hydrophilizing agent for metallic material, hydrophilizing fluid, method of hydrophilizing, metallic material, and heat exchanger |
| JP2004060162A (en) * | 2002-07-25 | 2004-02-26 | Nisshin Steel Co Ltd | Building surface material excellent in preventing dew condensation |
| JP3707737B2 (en) * | 2003-03-06 | 2005-10-19 | 重岡 誠司 | Outdoor heat exchanger |
| JP2007333222A (en) * | 2006-06-12 | 2007-12-27 | Matsushita Electric Ind Co Ltd | Heat transfer tube, its manufacturing method, and condenser using the heat transfer tube |
| JP5712777B2 (en) * | 2011-05-10 | 2015-05-07 | 日本軽金属株式会社 | Heat exchanger made of aluminum or aluminum alloy |
| KR20130092249A (en) * | 2012-02-10 | 2013-08-20 | 엘지전자 주식회사 | Heat pump |
| CN103939816B (en) * | 2014-04-18 | 2017-05-10 | 中国计量学院 | LED street lamp module provided with light transmitting cover with self-cleaning and scattering-preventing functions |
| JP2017227088A (en) * | 2016-06-24 | 2017-12-28 | Toto株式会社 | High drainage ability product |
| WO2018145253A1 (en) * | 2017-02-07 | 2018-08-16 | 玖鼎材料股份有限公司 | Fin-type heat exchanger |
| KR101953966B1 (en) * | 2017-03-15 | 2019-03-04 | 두산중공업 주식회사 | Heat transfer tube having superhydrophobic surface and manufacturing method therefor |
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