CN103673712A - Anti-corrosion finned tube - Google Patents
Anti-corrosion finned tube Download PDFInfo
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- CN103673712A CN103673712A CN201310651266.8A CN201310651266A CN103673712A CN 103673712 A CN103673712 A CN 103673712A CN 201310651266 A CN201310651266 A CN 201310651266A CN 103673712 A CN103673712 A CN 103673712A
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- finned tube
- corrosion
- pipe
- fin
- anticorrosion
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Abstract
The invention discloses an anti-corrosion finned tube. The anti-corrosion finned tube comprises a hollow tube body and fins connected with the outer wall of the tube body. An anti-corrosion coating coats the portion, not connected with the fins, of the outer wall of the tube body and is a glass flake type coating or an anti-corrosion plaster coating. The anti-corrosion finned tube has the advantages of being simple, efficient, economical and practical, the anti-corrosion performance and the reliability of the finned tube can be improved remarkably, and the service life of the finned tube can be prolonged remarkably.
Description
Technical field
The present invention relates to a kind of finned tube, relate in particular to a kind of anticorrosion finned tube.
Background technology
Finned tube, especially H type finned tube, be widely used in boiler smoke, and especially the waste heat recovery of coal-burning boiler, is commonly called as economizer.What the material of finned tube was commonly used is carbon steel material, also have for anticorrosion employing ND material, but rarely have the high-class stainless steel material of employing stainless steel, especially acid corrosion-resistant, be mainly to consider that carbon steel material price is lower, and other material price such as stainless steel is expensive.
Carbon steel material is poor to the corrosion resistance of flue gas, especially when there is acid dew piont corrosion in flue-gas temperature reduction, the finned tube of carbon steel material is very easy to be corroded, ND steel, even high-class stainless steel material is as 316L, and 904 stainless steel materials can not meet the corrosion-resistant requirement of the application scenario of acid dew piont corrosion.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, a kind of anticorrosion finned tube is provided, solved the technical problem that prior art can not meet the application scenario of acid dew piont corrosion.
For achieving the above object, the invention provides following technical proposal: a kind of anticorrosion finned tube, comprise hollow pipe and with the fin that is connected of pipe outer wall, described pipe outer wall does not connect fin place and is covered with corrosion resistant coating.
Further, described fin is H type fin.
Further, described corrosion resistant coating is glass flake type coating or corrosion-resistant clay coating.
Further, described corrosion resistant coating is also provided with protective sleeve outward.
Further, the material of described protective sleeve is metal or pottery or heatproof high molecule material.
Further, described protective sleeve is spelled and is formed mutually by the semicircle jacket that two centres are connected, both sides interlock disconnection.
Further, described pipe and fin are also provided with enamel layer, and the enamel layer on pipe is between pipe outer wall and corrosion-inhibiting coating.
The invention has the beneficial effects as follows: have simply efficient, economical and practical feature, can significantly improve the antiseptic property of finned tube, and reliability is improved and extended service life.
Accompanying drawing explanation
Fig. 1 is the structural representation of prior art;
Fig. 2 is the structural representation of another kind of prior art;
Fig. 3 is internal structure schematic diagram of the present invention;
Fig. 4 is explosive view of the present invention.
The specific embodiment
As shown in Figure 1, common finned tube is comprised of metal tube 10 and fin 11, and metal tube 10 is connected by welding or other modes with metal fin 11.When fin is during for shape as shown in Figure 2, this fin is called as H type finned tube, and fin can be also other shapes certainly.
Fig. 1, finned tube shown in Fig. 2, be mainly used in gas-liquid heat exchange, in pipe 10, be liquid, as water etc., pipe 10 is outer is gas, as boiler smoke etc., when fin 11 pipes are for there being the flue gas of corrosion, as fire coal boiler fume, manage outer flue gas finned tube is had to larger corrosivity, and the most dangerous corrosion area is mainly and there is no the outer part of the pipe of fin, and the root area of fin 11 and pipe welding, do not have the tube wall of pipe 10 outer parts of fin 11 thinner, the root area of fin 11 and pipe 10 welding is because welding factor may have injury to the corrosive nature of material, in addition the wall surface temperature of the two is all lower, approach with pipe 10 interior cooling fluid temperatures.And fin 11 regions thicken with respect to the wall thickness of pipe 10, and the surface of the relative pipe 10 of its surface temperature is higher, so improve the corrosion resistant method of finned tube, is to lay special stress on protecting above-mentioned two regions.
As shown in Figure 3, Figure 4, a kind of anticorrosion finned tube, comprise hollow pipe 10 and with the fin 11 that is connected of pipe 10 outer walls, described pipe 10 outer walls do not connect fin 11 places and are covered with corrosion resistant coating 12.Described corrosion resistant coating 12 is glass flake type coating or corrosion-resistant clay coating.Corrosion-resistant finishes 12 adopts acidproof heat-conducting daub can improve the heat conductivility of coating.
As a kind of preferred scheme, described fin 11 is H type fin.
As a kind of preferred scheme, described fin 11 is welded on pipe 10 outer walls.
In order to protect corrosion resistant coating 12 difficult drop-offs, the outer protective sleeve 13 that is also provided with of described corrosion resistant coating 12.The material of described protective sleeve is metal or pottery or heatproof high molecule material.
As a kind of preferred scheme, described protective sleeve 13 is spelled and is formed mutually for metal protection protector and by two centres are connected, both sides interlock disconnection semicircle jacket 13a, 13b.Described protective sleeve 13 pipe 10 and fin 11 that is connected.Make like this workload that installs additional of protective sleeve 13 greatly reduce, increase work efficiency.
On described pipe 10 and fin 11, be also provided with enamel layer, and the enamel layer on pipe 10 is between pipe 10 outer walls and corrosion resistant coating 12.Before covering corrosion resistant coating 12, also can on the pipe 10 of finned tube and fin 11, first carry out enamel processing, corrosion-inhibiting coating 12 is attached to outside enamel layer, can further improve like this Corrosion Protection of finned tube.
Claims (7)
1. an anticorrosion finned tube, comprises the pipe (10) of hollow and the fin (11) being connected with pipe (10) outer wall, it is characterized in that, described pipe (10) outer wall does not connect fin (11) and locates to be covered with corrosion resistant coating (12).
2. anticorrosion finned tube according to claim 1, is characterized in that, described fin (11) is H type fin.
3. anticorrosion finned tube according to claim 1, is characterized in that, described corrosion resistant coating (12) is glass flake type coating or corrosion-resistant clay coating.
4. anticorrosion finned tube according to claim 1, is characterized in that, the outer protective sleeve (13) that is also provided with of described corrosion resistant coating (12).
5. anticorrosion finned tube according to claim 4, is characterized in that, the material of described protective sleeve (13) is metal or pottery or heatproof high molecule material.
6. anticorrosion finned tube according to claim 4, is characterized in that, described protective sleeve (13) is spelled and formed mutually by the semicircle jacket that two centres are connected, both sides interlock disconnection.
7. anticorrosion finned tube according to claim 1, is characterized in that, on described pipe (10) and fin (11), is also provided with enamel layer, and the enamel layer on pipe (10) is positioned between pipe (10) outer wall and corrosion-inhibiting coating (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310651266.8A CN103673712A (en) | 2013-12-09 | 2013-12-09 | Anti-corrosion finned tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310651266.8A CN103673712A (en) | 2013-12-09 | 2013-12-09 | Anti-corrosion finned tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103673712A true CN103673712A (en) | 2014-03-26 |
Family
ID=50312005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310651266.8A Pending CN103673712A (en) | 2013-12-09 | 2013-12-09 | Anti-corrosion finned tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103673712A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107131774A (en) * | 2017-05-25 | 2017-09-05 | 合肥皖化电泵有限公司 | A kind of stove water pump heat exchanger with high-efficiency radiating fin |
| CN111189225A (en) * | 2020-01-19 | 2020-05-22 | 苏均迎 | Cold water recovery neutralization apparatus for water heater |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202329337U (en) * | 2011-11-08 | 2012-07-11 | 碧海舟（北京）石油化工设备有限公司 | Finned tube with low temperature dew point corrosion-resistant coating |
| CN202432906U (en) * | 2011-11-11 | 2012-09-12 | 杭州兴环科技开发有限公司 | Corrosion-resistant finned tube |
| CN203629400U (en) * | 2013-12-09 | 2014-06-04 | 杭州兴环科技开发有限公司 | Anticorrosion finned tube |
-
2013
- 2013-12-09 CN CN201310651266.8A patent/CN103673712A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202329337U (en) * | 2011-11-08 | 2012-07-11 | 碧海舟（北京）石油化工设备有限公司 | Finned tube with low temperature dew point corrosion-resistant coating |
| CN202432906U (en) * | 2011-11-11 | 2012-09-12 | 杭州兴环科技开发有限公司 | Corrosion-resistant finned tube |
| CN203629400U (en) * | 2013-12-09 | 2014-06-04 | 杭州兴环科技开发有限公司 | Anticorrosion finned tube |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107131774A (en) * | 2017-05-25 | 2017-09-05 | 合肥皖化电泵有限公司 | A kind of stove water pump heat exchanger with high-efficiency radiating fin |
| CN111189225A (en) * | 2020-01-19 | 2020-05-22 | 苏均迎 | Cold water recovery neutralization apparatus for water heater |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| C41 | Transfer of patent application or patent right or utility model | ||
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Effective date of registration: 20160525 Address after: 361100 No. 1178-1188, spring road, industrial zone, torch hi tech Zone (Xiangan), Fujian, Xiamen Applicant after: Xiamen Savings Environmental Co., Ltd. Address before: Hangzhou City, Zhejiang province 310018 poplar economic and Technological Development Zone Street No. 6 Street No. 452 building 3 room 103 Applicant before: Hangzhou ISAW Technology Limited |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140326 |