CN106802106A - A kind of etch-proof heat exchanger preparation method with Graphene diaphragm of heat transfer efficient - Google Patents
A kind of etch-proof heat exchanger preparation method with Graphene diaphragm of heat transfer efficient Download PDFInfo
- Publication number
- CN106802106A CN106802106A CN201710092654.5A CN201710092654A CN106802106A CN 106802106 A CN106802106 A CN 106802106A CN 201710092654 A CN201710092654 A CN 201710092654A CN 106802106 A CN106802106 A CN 106802106A
- Authority
- CN
- China
- Prior art keywords
- graphene
- copper pipe
- minutes
- heat exchanger
- etch
- 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
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2204/00—Structure or properties of graphene
- C01B2204/02—Single layer graphene
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The invention discloses a kind of etch-proof heat exchanger preparation method with Graphene diaphragm of heat transfer efficient, it is characterised in that it comprises the following steps：(1) copper pipe is cleaned first；(2) Graphene and then in copper pipe surface is grown：Growth temperature is set as 800 1200 DEG C; protection gas is passed through in reative cell, and is rapidly heated to graphene growth temperature, be subsequently passed methane gas and kept for 8 15 minutes; the time of graphene growth is the time for being passed through methane, fast cooling and closes all gas afterwards；(3) ensure the Stress control of reative cell in 8 15mbar in Graphene preparation process；So far good Graphene diaphragm just has been prepared in copper pipe surface, has wrapped copper with anticorrosion.The inventive method is moderate, can be mass-produced, and quality of forming film is higher.
Description
Technical field
The present invention relates to gas heater technical field, more particularly, to heat exchange of the gas heater with Graphene diaphragm
Device technical field.
Background technology
Oxygen-free copper material being used existing heat exchanger for gas water heaters heat exchanger tube, copper is the larger metal material of thermal conductivity factor more
Matter, thermal conductivity factor has the snakelike bronze pan tube in 377W/mK, but cross flow heat exchanger to have larger temperature difference along water (flow) direction,
Such thermograde is unfavorable for heat exchange, can reduce the heat exchange property of heat exchanger, and water heater is used in the case of water quality is poor,
Copper pipe can be corroded causes leak.Although the stainless steel heat exchanger of exploitation is corroded leak although heat exchanger can be solved preferably
Problem, but the heat conductivility of stainless steel is poor, 304 thermal conductivity factor only has 16.2W/mK, and identical exchange capability of heat
Stainless heat exchanger is more much bigger than copper heat exchanger quality, causes it to be restricted using by certain in gas heater field.
Traditional anti-corrosive treatment method such as electrochemical protection is not particularly suited for heat exchanger for gas water heaters because of reasons such as securities, and one
As deactivating process for the treatment of be to thereby protect copper pipe and be not corroded in copper pipe surface generation passivating film, but the passivating film can not be very
Worked under water impact for a long time well, its protective effect to copper pipe is limited, is not avoided that copper during water heater use still
The corrosion leak of pipe.
Also have using Graphene diaphragm, a kind of heat exchanger of high heat dispersion (CN201620721991.7) is open
(bulletin) number is CN205897906U, the utility application that the applying date is 2016.07.08, and it includes fin and interts
Heat exchanger tube in the fin；The heat exchanger tube includes heat exchange pipe body, the inner surface of the heat exchange pipe body and outer surface
It is respectively equipped with Graphene heat conducting coating；Outer surface located at the Graphene heat conducting coating of the heat exchange pipe body inner surface is additionally provided with
Silicon nitride coating.But it prepares complexity, adhesive force is inadequate, so as to influence life-span and using effect.
The content of the invention
The purpose of the present invention provided aiming at the deficiencies in the prior art a kind of process is simple convenience, favorable anti-corrosion effect,
High temperature resistant, heat conductivility is good, while the also heat exchanger for gas water heaters with Graphene diaphragm with superhydrophobic property
Preparation method.
In order to reach object above, patent of the present invention is adopted the following technical scheme that：
The etch-proof heat exchanger preparation method with Graphene diaphragm of a kind of heat transfer efficient, it is characterised in that its is specific
Processing step is as follows：
(1) copper pipe is cleaned and is dried first, the greasy dirt of copper pipe inwall can be cleaned using alcohol, acetone soln；
(2) Graphene and then in copper pipe surface is grown：Growth temperature is set as 800-1200 DEG C, is led in reative cell
Enter and protect gas, and be rapidly heated to graphene growth temperature, be subsequently passed methane gas and keep 8-15 minutes, graphene growth
Time be the time for being passed through methane, fast cooling and close all gas afterwards；
(3) ensure the Stress control of reative cell in 8-15mbar in Graphene preparation process；So far just in copper pipe surface
Good Graphene diaphragm has been prepared, copper has been wrapped with anticorrosion.
It is using being placed on the step of the copper pipe is cleaned in (1) as further illustrating for such scheme
Boiled in acetone 5-15 minutes, placing into and cleaned with deionized water after boil 8-18 minutes in ethanol, placed into and soak in glacial acetic acid
Bubble is cleaned after 5-20 minutes with deionized water, and the final step of cleaning is dried up with nitrogen, this is done to remove on copper pipe
The organic matter and cupric oxide related impurities that may adhere to.
Compared with prior art, a kind of heat exchanger for gas water heaters preparation method that patent of the present invention is provided has and following has
Beneficial effect：
Using the heat exchanger of brand-new graphene film, Graphene is two-dimentional carbon nanomaterial, there is steady well to water, ion
It is qualitative, its special laminar structured generation that can play physical barriers effect obstruction corrosion, while also having superhydrophobic property.
Therefore the present invention uses graphene film for the heat exchange of water-heater heat-exchanging device copper pipe and Anticorrosion Problems, it is ensured that gas heater is changed
Hot device high efficient heat exchanging simultaneously extends its service life.
Graphene diaphragm its excellent heat conductivility ensures the consistent of Different Plane pipe temperature in cross flow heat exchanger
Property, realize enhanced heat exchange.
The superhydrophobic property of Graphene diaphragm may insure that moisture film is formed not in heat exchanger tube stops heat transfer, there is graphite
Its coefficient of overall heat transmission of the heat exchanger of alkene diaphragm than original heat exchanger to improve as many as 4 times.
Graphene diaphragm its excellent mechanical property, adhesion property, high temperature resistant and decay resistance more can effectively be prevented
Only Copper Tube Corrosion leak in water heater, increases the service life；
The Graphene diaphragm that the present invention can be obtained using chemical vapour deposition technique (CVD), due to the self limiting of copper material,
Catalyticing decomposition action is lost after copper surface forms a layer graphene, copper is easy to prepare mono-layer graphite as catalyst
Alkene.Prepare simple and convenient, diaphragm adhesive force is strong, long service life.Its inventive method is moderate, can be mass-produced,
Quality of forming film is higher.
Brief description of the drawings
Fig. 1 is process block schematic diagram of the invention.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment is further described to patent of the present invention.
As shown in figure 1, the etch-proof heat exchanger preparation method with Graphene diaphragm of heat transfer efficient of the invention is specific
Preparation method is as follows：
Copper pipe is cleaned first：It is placed on being boiled 10 minutes in acetone, places into and boil 10 minutes in ethanol
Cleaned with deionized water afterwards, place into immersion in glacial acetic acid and clean with deionized water after 10 minutes, the final step of cleaning is use
Nitrogen is dried up, this is done to remove the impurity such as organic matter and the cupric oxide that may adhere on copper pipe.
Next Graphene is just grown in copper pipe surface, growth temperature is set as 1000 DEG C, be passed through in reative cell
Protection gas, and is rapidly heated to graphene growth temperature, is subsequently passed methane gas and holding 10 minutes, graphene growth when
Between be the time of methane of being passed through, fast cooling and close all gas afterwards.
Then ensure the Stress control of reative cell in 10mbar in Graphene preparation process.So far just in copper pipe surface system
Get good Graphene diaphragm ready, wrap copper with anticorrosion.
Pointed out because working as, in above-mentioned processing step, copper pipe carries out cleaning can also be realized using other methods, and relative
It is the optimal effectiveness parameter got through experiment in above-mentioned parameter, and in its parameter, growth temperature can be set as 800-1200
DEG C, being passed through the methane gas retention time can be for 8-15 minute, and the Stress control of reative cell can be in 8-15mbar；And for copper
In the step of pipe is cleaned, it can be 5-15 minutes to be positioned over boiling time in acetone, and being put into ethanol boiling time can be with
It is 8-18 minutes, is put into soak time 5-20 minutes in glacial acetic acid.
Above-described is only the preferred embodiment of the present invention, it is noted that for one of ordinary skill in the art
For, without departing from the concept of the premise of the invention, various modifications and improvements can be made, these belong to the present invention
Protection domain.
Claims (5)
1. the etch-proof heat exchanger preparation method with Graphene diaphragm of a kind of heat transfer efficient, it is characterised in that it is included such as
Lower step：
(1) copper pipe is cleaned first；
(2) Graphene and then in copper pipe surface is grown：Growth temperature is set as 800-1200 DEG C, guarantor is passed through in reative cell
Shield gas, and is rapidly heated to graphene growth temperature, is subsequently passed methane gas and is kept for 8-15 minutes, graphene growth when
Between be the time of methane of being passed through, fast cooling and close all gas afterwards；
(3) ensure the Stress control of reative cell in 8-15mbar in Graphene preparation process；So far just prepared in copper pipe surface
Good Graphene diaphragm has been got well, copper has been wrapped with anticorrosion.
2. the etch-proof heat exchanger preparation method with Graphene diaphragm of heat transfer efficient according to claim 1, it is special
Levy and be, be using being placed on being boiled 5-15 minutes in acetone, place into the step of the copper pipe is cleaned in (1)
Cleaned with deionized water after being boiled in ethanol 8-18 minutes, it is clear with deionized water after placing into glacial acetic acid immersion 5-20 minutes
Wash, the final step of cleaning is dried up with nitrogen, this is done to remove the organic matter and cupric oxide that may adhere on copper pipe
Related impurities.
3. the etch-proof heat exchanger preparation method with Graphene diaphragm of heat transfer efficient according to claim 2, it is special
Levy and be, be using being placed on being boiled 10 minutes in acetone, in placing into ethanol the step of copper pipe is cleaned in (1)
Cleaned with deionized water after boiling 10 minutes, place into immersion in glacial acetic acid and cleaned with deionized water after 10 minutes.
4. the etch-proof heat exchanger preparation method with Graphene diaphragm of heat transfer efficient according to claim 2, it is special
Levy and be, in step (2), the growth temperature that Graphene is grown in copper pipe surface is set as 1000 DEG C, is passed through methane gas
Retention time is 10 minutes.
5. the etch-proof heat exchanger preparation method with Graphene diaphragm of heat transfer efficient according to claim 2, it is special
Levy and be, in step (3), ensure the Stress control of reative cell in 10mbar in Graphene preparation process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710092654.5A CN106802106A (en) | 2017-02-21 | 2017-02-21 | A kind of etch-proof heat exchanger preparation method with Graphene diaphragm of heat transfer efficient |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710092654.5A CN106802106A (en) | 2017-02-21 | 2017-02-21 | A kind of etch-proof heat exchanger preparation method with Graphene diaphragm of heat transfer efficient |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106802106A true CN106802106A (en) | 2017-06-06 |
Family
ID=58987619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710092654.5A Pending CN106802106A (en) | 2017-02-21 | 2017-02-21 | A kind of etch-proof heat exchanger preparation method with Graphene diaphragm of heat transfer efficient |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106802106A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109028724A (en) * | 2018-06-19 | 2018-12-18 | 上海理工大学 | A method of improving evaporator defrost performance |
| CN110952070A (en) * | 2019-12-09 | 2020-04-03 | 中国东方电气集团有限公司 | Preparation method of copper alloy composite material with surface hydrophobicity |
| CN110983291A (en) * | 2019-12-09 | 2020-04-10 | 中国东方电气集团有限公司 | High-temperature coating method for graphene anticorrosive layer of copper alloy composite material |
| CN110983290A (en) * | 2019-12-09 | 2020-04-10 | 中国东方电气集团有限公司 | Graphene-coated copper alloy composite material and preparation method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3787680B2 (en) * | 2001-03-27 | 2006-06-21 | 大阪瓦斯株式会社 | Graphite ribbon and manufacturing method thereof |
| CN103072333A (en) * | 2013-01-05 | 2013-05-01 | 郑州航空工业管理学院 | Copper material provided with anti-oxidative protection layer and manufacture method thereof |
| CN203907575U (en) * | 2014-06-04 | 2014-10-29 | 华北电力大学 | U-shaped tube with graphene layer |
| CN104582428A (en) * | 2013-10-25 | 2015-04-29 | 加川清二 | Heat-dissipating film, and its production method and apparatus |
| CN104654569A (en) * | 2015-02-06 | 2015-05-27 | 宁波正欣制冷设备有限公司 | Integrated polymorphic energy-saving water heater |
| CN105222117A (en) * | 2014-06-04 | 2016-01-06 | 华北电力大学 | A kind of U-tube with graphene layer |
| CN106315564A (en) * | 2016-08-10 | 2017-01-11 | 安徽省宁国天成电工有限公司 | Graphene for heat exchanger and preparation method thereof |
| CN205897939U (en) * | 2016-07-08 | 2017-01-18 | 广州市耀华电器有限公司 | Heat exchange tube for heat exchanger |
-
2017
- 2017-02-21 CN CN201710092654.5A patent/CN106802106A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3787680B2 (en) * | 2001-03-27 | 2006-06-21 | 大阪瓦斯株式会社 | Graphite ribbon and manufacturing method thereof |
| CN103072333A (en) * | 2013-01-05 | 2013-05-01 | 郑州航空工业管理学院 | Copper material provided with anti-oxidative protection layer and manufacture method thereof |
| CN104582428A (en) * | 2013-10-25 | 2015-04-29 | 加川清二 | Heat-dissipating film, and its production method and apparatus |
| CN203907575U (en) * | 2014-06-04 | 2014-10-29 | 华北电力大学 | U-shaped tube with graphene layer |
| CN105222117A (en) * | 2014-06-04 | 2016-01-06 | 华北电力大学 | A kind of U-tube with graphene layer |
| CN104654569A (en) * | 2015-02-06 | 2015-05-27 | 宁波正欣制冷设备有限公司 | Integrated polymorphic energy-saving water heater |
| CN205897939U (en) * | 2016-07-08 | 2017-01-18 | 广州市耀华电器有限公司 | Heat exchange tube for heat exchanger |
| CN106315564A (en) * | 2016-08-10 | 2017-01-11 | 安徽省宁国天成电工有限公司 | Graphene for heat exchanger and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109028724A (en) * | 2018-06-19 | 2018-12-18 | 上海理工大学 | A method of improving evaporator defrost performance |
| CN110952070A (en) * | 2019-12-09 | 2020-04-03 | 中国东方电气集团有限公司 | Preparation method of copper alloy composite material with surface hydrophobicity |
| CN110983291A (en) * | 2019-12-09 | 2020-04-10 | 中国东方电气集团有限公司 | High-temperature coating method for graphene anticorrosive layer of copper alloy composite material |
| CN110983290A (en) * | 2019-12-09 | 2020-04-10 | 中国东方电气集团有限公司 | Graphene-coated copper alloy composite material and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106802106A (en) | A kind of etch-proof heat exchanger preparation method with Graphene diaphragm of heat transfer efficient | |
| CN106871705A (en) | A kind of etch-proof heat exchanger preparation method with Graphene diaphragm of heat transfer efficient | |
| CN100349286C (en) | Thyratron transistor valve water-cooling radiator | |
| CN205897939U (en) | Heat exchange tube for heat exchanger | |
| CN100517661C (en) | Preparation method of heat radiator | |
| CN212929030U (en) | Corrosion-resistant and high-temperature-resistant austenitic seamless stainless steel pipe | |
| CN103063079A (en) | Metal enamel heat transmission element and processing method thereof | |
| CN210683901U (en) | High-durability hood-type annealing furnace waste hydrogen pipeline | |
| CN203572305U (en) | Welded tube of copper tube and aluminum tube | |
| CN108239751A (en) | High-temperature vacuum heat-collecting tube inner wall hydrogen resistance coating preparation facilities | |
| CN110398162A (en) | A kind of heat exchanger preparation method of the environmentally friendly plated film of high-efficiency anticorrosive | |
| CN116426897A (en) | Microchannel radiator surface anti-corrosion treatment method | |
| CN201059889Y (en) | Copper and aluminium composite column pipe heat radiator with inside corrosion-inhibited coating | |
| CN102022950B (en) | Anticorrosive processing method for aluminum-alloy heat-exchanger water pipe for gas water heater | |
| CN113025198A (en) | Anti-corrosion film coating paint for copper pipe of heat exchanger and film coating process thereof | |
| CN215062023U (en) | Anti-abrasion and anti-explosion circulating fluidized bed boiler water wall | |
| CN220793421U (en) | Energy-saving semiconductor heater | |
| CN201383883Y (en) | Electric heating element and electric heating device | |
| CN104833242A (en) | High-efficiency heat energy exchange device for waste hot water | |
| CN204345898U (en) | A kind of heat exchanger being applicable to medium | |
| CN202252625U (en) | Molten nitrate salt corrosion resistant equipment | |
| CN201248155Y (en) | Electric heating tube component | |
| CN215003129U (en) | Copper steel base graphite polytetrafluoroethylene heat exchange tube | |
| CN112637973B (en) | Long-life ceramic electric heater | |
| RU84524U1 (en) | AIR COOLING UNIT |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170606 |
|
| RJ01 | Rejection of invention patent application after publication |