CN102147204A - Energy-saving corrosion-preventing coal economizer heat exchanging tube and making method thereof - Google Patents
Energy-saving corrosion-preventing coal economizer heat exchanging tube and making method thereof Download PDFInfo
- Publication number
- CN102147204A CN102147204A CN2011100722644A CN201110072264A CN102147204A CN 102147204 A CN102147204 A CN 102147204A CN 2011100722644 A CN2011100722644 A CN 2011100722644A CN 201110072264 A CN201110072264 A CN 201110072264A CN 102147204 A CN102147204 A CN 102147204A
- Authority
- CN
- China
- Prior art keywords
- energy
- economizer heat
- heat exchanger
- fin
- exchanger tube
- 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
Images
Classifications
-
- 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
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Coating By Spraying Or Casting (AREA)
Abstract
The invention discloses an energy-saving corrosion-preventing coal economizer heat exchanging tube, which comprises an inner tube, a rib and a high-molecular coating. The rib comprises a plurality of fins and a rib base for fixedly sleeving the rib on the inner tube, and the exterior of the rib is coated with the high-molecular coating. A making method of the energy-saving corrosion-preventing coal economizer heat exchanging tube comprises the following steps of: sleeving an aluminum tube on the exterior of the inner tube; performing preliminary rolling on the aluminum tube by using a first hob; rolling and molding the obtained semi-finished product by using a second hob; and spraying high-molecular paint on the obtained product to form the high-molecular coating, and obtaining the product. The invention is resistant to corrosion of sulfuric acid, hydrogen nitrate and the like, and the limit that the lowest smoke exhaust temperature of the conventional boiler coal economizer should not be less than 130 DEG C is broken through, the lowest smoke exhaust temperature is reduced to below 100 DEG C, so the heat recovery efficiency of the smoke and the operation efficiency of the boiler are improved.
Description
Technical field
The present invention relates to economizer heat exchanger tube of a kind of energy-saving anti-corrosive erosion and preparation method thereof, Tube Sheet of Heat Exchanger that a kind of energy-saving anti-corrosive erosion economizer that is used for coal-burning boiler, oil burning boiler or gas fired-boiler of more specifically saying so is used and preparation method thereof.
Background technology
Economizer is a vitals of modern boiler, and the principle of economizer is exactly to utilize the heat of boiler tail discharging flue gas to shift to an earlier date the feedwater of heating boiler, the flue gas loss utilization of boiler is become available heat, thereby reduce heat loss due to exhaust gas.At present, what boiler economizer adopted usually is the cast iron type economizer, the cast iron type economizer has advantages such as corrosion resistance is strong, maintenance cost is low, but because the cast iron type economizer adopts cast iron quality, character is more crisp, voltage endurance capability, to bear water attack lower, and the cast iron type economizer adopts flange to connect usually, occurs drainage easily.And because the technology difficulty restriction, the cast iron type economizer adopts the light pipe formula usually, and this economizer surface is little, heat-transfer effect is poor.
In the pertinent literature, what relevant spiral fin heat exchanger adopted usually is the cast iron form at present, and the type of attachment of fin and rib base is welding.Weld owing to adopt, its welding distance causes spacing of fins bigger, and the resistance to corrosion decline of welding back all can influence the service life of heat exchanger.
Summary of the invention
In order to solve the problem that above-mentioned prior art exists, the objective of the invention is economizer heat exchanger tube that proposes a kind of energy-saving anti-corrosive erosion and preparation method thereof, it can effectively solve the problems referred to above that prior art exists.
For achieving the above object, the present invention is solved by the following technical programs:
The present invention proposes the economizer heat exchanger tube of a kind of energy-saving anti-corrosive erosion, and it comprises pipe, a fin and polymeric coating layer in one, this fin comprise some fins and be fixed be socketed in described in rib base on the pipe, and the described polymeric coating layer of the outside coating of this fin.
As further technical characterictic of the present invention, the spacing of described fin is 3-10mm.
As further technical characterictic of the present invention, the material of described interior pipe is stainless steel or boiler steel.
As further technical characterictic of the present invention, described fin material is an aluminium matter.
As further technical characterictic of the present invention, the height of described fin is more than 2 times of described inner tube diameter.
For achieving the above object, the present invention also proposes a kind of method for preparing energy-saving anti-corrosive erosion economizer heat exchanger tube, and it may further comprise the steps:
A, that an aluminium pipe sleeve is connected in one pipe is outside;
B, to utilize first hobboing cutter that the aluminum pipe among the step a is carried out tentatively rolling;
C, utilize second hobboing cutter to obtain the semi-finished product roll forming among the step b;
D, with step with in resulting product spraying high-molecular coating form polymeric coating layer, obtain product;
As further technical characterictic of the present invention, the spraying method of the high-molecular coating in the described steps d is a high temperature oven pressurization spraying technology.
Owing to adopt above technical scheme, a kind of economizer heat exchanger tube for preparing energy-saving anti-corrosive erosion of the present invention can anti-sulfuric acid, the corrosion of nitric acid etc., and breaking through in the past, the minimum exhaust gas temperature of boiler economizer must not be lower than 130 ℃ restriction, minimum smog discharge temperature is reduced in 100 ℃, from the heat recovery efficiency of raising flue gas and the operational efficiency of boiler.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is a cross section structure schematic diagram of the present invention.
Fig. 3 is the preparation flow figure of heat pipe of the present invention.
Among the figure: 1, interior pipe; 2, fin; 3, fin; 4, polymeric coating layer; 5, side of body base; 6, aluminum pipe; 7, the first hobboing cutters; 8, the second hobboing cutters.
The specific embodiment
Below in conjunction with the drawings and the specific embodiments, further set forth the present invention:
As shown in Figures 1 and 2, a kind of energy-saving anti-corrosive erosion heat exchanger, it comprises pipe 1, one fin 2 and polymeric coating layer 4 in one, this fin 2 comprise some fins 3 and be fixed be socketed in described in rib base 5 on the pipe 1, and these fin 2 outside coating polymeric coating layers 4.Rib base 5 closely contacts with interior pipe 1, reduced thermal resistance, improved heat utilization efficiency, this height coating 4 closely contacts with fin 2 and rib base 5, and the degree of depth merges, improved corrosion resistance and service life, this height coating 4 has anti-sulfuric acid, nitric acid etching characteristic, also can be lower than long-term work under 100 ℃ the sour environment in temperature.Fin 2 and rib base 5 get by the roll forming extrusion process for same aluminium, because the hobboing cutter blade that adopts can be regulated, the spacing of fin 3 is 3-10mm, evenly equidistantly arrange, and this spacing is far smaller than the spacing of welding fin, thereby has increased inned coefficient.
In the present embodiment, the material of interior pipe 1 is stainless steel or boiler steel, also can be other materials.The preferred aluminium matter of fin 2 materials.
As shown in Figure 3, a kind of preparation method of energy-saving anti-corrosive erosion heat exchanger, it may further comprise the steps:
A, an aluminum pipe 6 is socketed in pipe 1 outside in;
B, utilize the aluminum pipe 6 among 7 couples of step a of first hobboing cutter to carry out tentatively rolling;
C, utilize second hobboing cutter 8 to obtain the semi-finished product roll forming among the step b;
D, resulting product spraying high-molecular coating among the step c is formed a polymeric coating layer 4, obtain product;
In the present embodiment, the spraying method of macromolecule layer is a high temperature oven pressurization spraying technology in the steps d, and the polymeric coating layer 4 that adopts the spraying of this kind technology to obtain can merge the corrosion resistance and the service life of having improved heat exchanger with fin 2 degree of depth.
But the above-mentioned specific embodiment is exemplary, is to be the restriction that this patent is comprised scope in order better to make those skilled in the art can understand this patent, can not to be interpreted as; So long as according to spirit that this patent discloses done anyly be equal to change or modify, all fall into the scope that this patent comprises.
Claims (7)
1. the economizer heat exchanger tube of energy-saving anti-corrosive erosion, it is characterized in that: it comprises pipe, a fin and polymeric coating layer in one, this fin comprise some fins and be fixed be socketed in described in rib base on the pipe, and the described polymeric coating layer of the outside coating of this fin.
2. the economizer heat exchanger tube of energy-saving anti-corrosive erosion according to claim 1, it is characterized in that: the spacing of described fin is 3-10mm.
3. the economizer heat exchanger tube of energy-saving anti-corrosive erosion according to claim 2 is characterized in that: the material of pipe is stainless steel or boiler steel in described.
4. the economizer heat exchanger tube of energy-saving anti-corrosive erosion according to claim 3, it is characterized in that: described fin material is an aluminium matter.
5. the economizer heat exchanger tube of energy-saving anti-corrosive erosion according to claim 4, it is characterized in that: the height of described fin is more than 2 times of described inner tube diameter.
6. one kind prepares the method that energy-saving anti-corrosive loses the economizer heat exchanger tube, and it is characterized in that: it may further comprise the steps:
One aluminium pipe sleeve is connected on pipe outside in;
It is tentatively rolling to utilize first hobboing cutter that the aluminum pipe among the step a is carried out;
Utilize second hobboing cutter to obtain the semi-finished product roll forming among the step b;
With step with in resulting product spraying high-molecular coating form polymeric coating layer, obtain product.
7. the method for preparing energy-saving anti-corrosive erosion economizer heat exchanger tube according to claim 6 is characterized in that: the spraying method of the high-molecular coating in the described steps d is a high temperature oven pressurization spraying technology.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100722644A CN102147204A (en) | 2011-03-24 | 2011-03-24 | Energy-saving corrosion-preventing coal economizer heat exchanging tube and making method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100722644A CN102147204A (en) | 2011-03-24 | 2011-03-24 | Energy-saving corrosion-preventing coal economizer heat exchanging tube and making method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102147204A true CN102147204A (en) | 2011-08-10 |
Family
ID=44421586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100722644A Pending CN102147204A (en) | 2011-03-24 | 2011-03-24 | Energy-saving corrosion-preventing coal economizer heat exchanging tube and making method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102147204A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620584A (en) * | 2012-03-29 | 2012-08-01 | 双良节能系统股份有限公司 | Double metal fin heat pipe |
| CN103591788A (en) * | 2013-11-07 | 2014-02-19 | 昆山市申力毛纺有限公司 | Radiator for wool top dryer |
| CN103836609A (en) * | 2013-12-04 | 2014-06-04 | 成信绿集成股份有限公司 | Power station boiler flue gas and dust emission reduction system |
| CN103925698A (en) * | 2014-04-30 | 2014-07-16 | 哈尔滨红光锅炉总厂有限责任公司 | High-capacity fuel gas condensing hot water boiler adopting compound water circulation |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2232138Y (en) * | 1995-05-19 | 1996-07-31 | 杨淑萍 | High-molecular resin coating metal plate type heat exchanger |
| US6439301B1 (en) * | 1996-05-06 | 2002-08-27 | Rafael-Armament Development Authority Ltd. | Heat Exchangers |
| CN2711644Y (en) * | 2004-06-24 | 2005-07-20 | 上海交通大学 | High-efficient compact pipe-fin type adsorption bed |
| CN2763889Y (en) * | 2005-01-19 | 2006-03-08 | 幸孺企业有限公司 | Combined structure of radiation fin and heat conductive pipe |
| CN100347512C (en) * | 1997-03-17 | 2007-11-07 | 运载器有限公司 | Heat transfer tube and method of manufacturing same |
| CN101090949A (en) * | 2004-12-22 | 2007-12-19 | 索尔维公司 | Acid resistant particles of an alkaline earth metal carbonate |
| CN202013132U (en) * | 2011-03-24 | 2011-10-19 | 恩迅（上海）节能科技有限公司 | Energy-saving and anticorrosive heat exchange tube of economizer |
-
2011
- 2011-03-24 CN CN2011100722644A patent/CN102147204A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2232138Y (en) * | 1995-05-19 | 1996-07-31 | 杨淑萍 | High-molecular resin coating metal plate type heat exchanger |
| US6439301B1 (en) * | 1996-05-06 | 2002-08-27 | Rafael-Armament Development Authority Ltd. | Heat Exchangers |
| CN100347512C (en) * | 1997-03-17 | 2007-11-07 | 运载器有限公司 | Heat transfer tube and method of manufacturing same |
| CN2711644Y (en) * | 2004-06-24 | 2005-07-20 | 上海交通大学 | High-efficient compact pipe-fin type adsorption bed |
| CN101090949A (en) * | 2004-12-22 | 2007-12-19 | 索尔维公司 | Acid resistant particles of an alkaline earth metal carbonate |
| CN2763889Y (en) * | 2005-01-19 | 2006-03-08 | 幸孺企业有限公司 | Combined structure of radiation fin and heat conductive pipe |
| CN202013132U (en) * | 2011-03-24 | 2011-10-19 | 恩迅（上海）节能科技有限公司 | Energy-saving and anticorrosive heat exchange tube of economizer |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620584A (en) * | 2012-03-29 | 2012-08-01 | 双良节能系统股份有限公司 | Double metal fin heat pipe |
| CN103591788A (en) * | 2013-11-07 | 2014-02-19 | 昆山市申力毛纺有限公司 | Radiator for wool top dryer |
| CN103836609A (en) * | 2013-12-04 | 2014-06-04 | 成信绿集成股份有限公司 | Power station boiler flue gas and dust emission reduction system |
| CN103925698A (en) * | 2014-04-30 | 2014-07-16 | 哈尔滨红光锅炉总厂有限责任公司 | High-capacity fuel gas condensing hot water boiler adopting compound water circulation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105737182B (en) | Flue gas deep cooler | |
| CN102147204A (en) | Energy-saving corrosion-preventing coal economizer heat exchanging tube and making method thereof | |
| CN201828177U (en) | Flat pipe and fin structure of parallel flow heat exchanger | |
| CN204007277U (en) | A kind of little spacing finned tube and finned tube exchanger | |
| CN101943535A (en) | Oblate pipe and fin structure for parallel flow heat exchanger | |
| CN206847444U (en) | Heat exchanger tube and the heat exchanger with the heat exchanger tube | |
| CN203203453U (en) | Flat tube type finned tube | |
| CN202013132U (en) | Energy-saving and anticorrosive heat exchange tube of economizer | |
| CN204535509U (en) | Three-dimensional rib plate heat exchanger tube | |
| CN208124955U (en) | A kind of monolithic devices spiral fin coil | |
| CN201555473U (en) | Enamel oval-shaped steel-tube type air heat exchanger | |
| CN201628506U (en) | Anti-fall finned tube | |
| CN102384696A (en) | Heat exchanger | |
| CN202501494U (en) | Enamel tube air preheater | |
| CN106833682B (en) | Raw gas heat exchange device for coke oven ascending pipe/pipe group | |
| CN102022950B (en) | Anticorrosive processing method for aluminum-alloy heat-exchanger water pipe for gas water heater | |
| CN211782876U (en) | U-shaped tubular raw coke oven gas heat exchanger for coke oven | |
| CN218270322U (en) | Integral gravity heat pipe with integrally spun fins | |
| CN213147527U (en) | Corrosion-resistant boiler economizer pipe wall | |
| CN211626222U (en) | Bimetal rolled fin tube | |
| CN201844717U (en) | U-shaped pipe steam and water heat exchanger | |
| CN201555472U (en) | Enamel screwed pipe type air heat exchanger | |
| CN212584994U (en) | Device for improving corrosive wear of steel pipe at low temperature section of tubular air preheater | |
| CN202128934U (en) | Acetate recovery distillation column with heater | |
| CN102041537B (en) | Processing method for corrosion resisting aluminum alloy heat exchanger in gas water heater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110810 |