CN1271840A - Stress corrosion resistant low-alloy pipe cluster of air cooler - Google Patents
Stress corrosion resistant low-alloy pipe cluster of air cooler Download PDFInfo
- Publication number
- CN1271840A CN1271840A CN 00106074 CN00106074A CN1271840A CN 1271840 A CN1271840 A CN 1271840A CN 00106074 CN00106074 CN 00106074 CN 00106074 A CN00106074 A CN 00106074A CN 1271840 A CN1271840 A CN 1271840A
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- Prior art keywords
- tube
- air cooler
- stress corrosion
- corrosion resistant
- 12cr2almov
- 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.)
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The present invention relates to an air cooling system used in petro-chemical and electric power fields. The low-alloy (12Cr2AlMoV) sheet material and finned tubes, which can resist the stress corrosion of H2S and HCl to improve the anticorrosion performance of air cooling type heat exchanger and elongate service life of equipment. Its advantages are low cost of equipment and low expense in maintenance.
Description
A kind of tube bank that relates to Air-cooled Heat Exchanger in the petrochemical equipment.
The tube bank of air cooler in the prior art is generally ordinary carbon steel or stainless steel with material, and the stress corrosion of all not anti-hydrogen sulfide of carbon steel and stainless steel and chlorion.Two kinds of air cooler finned tubes of patent CN2235600Y that has announced and CN2221200Y only provide different fin structure forms, and the resistance to corrosion of tube bank parent tube and bobbin carriage is not considered.And the used stainless steel of prior art only can resist general high temperature corrosion, not only can not anti-H 2 S (H
2S) stress corrosion, and its cost is also higher.
The purpose of this utility model be to provide a kind of can anti-H 2 S (H
2S) stress corrosion and cost is compared relative cheap air cooler tube bundle with stainless steel.
The utility model is by following scheme implementation:
I had once declared " corrosion-proof heat exchanger of high temperature resistance sulphur, wet hydrogen sulfide, corrosion of sulfuric acid at dew point " (CN1191300A) on September 11st, 97, declared on September 15th, 99 " steel of anti-H 2 S, chloride ion corrosion and special equipment thereof and accessory ", its described tubing 12Cr2AlMoV and modified material 09Cr2AlMoRE have very superior anti-H 2 S stress corrosion ability, heat exchanger and existing more than 100 of tube bank popularization back thereof with its manufacturing are well used in petrochemical industry, and have passed through the appraisal of scientific and technological achievements of Hubei Province State Scientific and Technological Commission tissue.Therefore the technical program is made the finned tube (part 4) of air cooler of the parent tube of 12Cr2AlMoV or 09Cr2AlMoRE, bobbin carriage (part 2) with the board making air cooler tube bundle of 12Cr2AlMoV or 09Cr2AlMoRE, make the tube sheet (part 3) of air cooler tube bundle of the forging of 12Cr2AlMoV or 09Cr2AlMoRE, because its tubing is identical with the material of tube sheet, therefore also stopped the potential corrosion of tube sheet, its whole resistance to corrosion also improves a lot, and identical material is also reliable in welding.
When 12Cr2AlMoV and 09Cr2AlMoRE made parent tube, its finned tube was two kinds of carbon steel and commercial-purity aluminiums, and the type of attachment of parent tube and fin can be several versions such as soldering, wound form and bimetallic be rolling.
Be described further according to diagram below:
Fig. 1 is the air cooler tube bundle structure chart.Wherein part 1 is a pipe connecting flange, and part 2 is a bobbin carriage, and part 3 is a tube sheet, and part 4 is a finned tube.
Fig. 2 is the framework of air cooler tube bundle.
Technical scheme of the present invention is compared with original technology has superior anti-H2S and Cl-Stress Corrosive nature has solved the problem that general stainless steel cann't be solved, and cost is not than 18-8 The air cooler tube bundle of rust steel matter is cheap, and manufacturing process and original technology are basic Unanimously.
The low-alloy pipe cluster of air cooler of the present invention---stress corrosion resistant can be widely used in stone The air cooling system of oil, chemical industry, electric power.
Claims (2)
1. the low-alloy pipe cluster of air cooler of a stress corrosion resistant, it is to be subtracted by pipe connecting flange 1, bobbin carriage 2, tube sheet 3, finned tube 4 and framework (Fig. 2) institute structure, it is characterized in that used bobbin carriage 2, tube sheet 3 usefulness 12Cr2AlMoV sheet material manufacturings, the seamless steel pipe manufacturing of 12Cr2AlMoV of the basepipe materials of finned tube 4;
2. air cooler tube bundle as claimed in claim 1, the fin that it is characterized in that described finned tube 4 have two kinds of carbon steel and commercial-purity aluminiums, and the type of attachment of parent tube and fin has soldering, wound form and bimetallic rolled structure form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00106074 CN1271840A (en) | 2000-04-20 | 2000-04-20 | Stress corrosion resistant low-alloy pipe cluster of air cooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00106074 CN1271840A (en) | 2000-04-20 | 2000-04-20 | Stress corrosion resistant low-alloy pipe cluster of air cooler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1271840A true CN1271840A (en) | 2000-11-01 |
Family
ID=4578120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00106074 Pending CN1271840A (en) | 2000-04-20 | 2000-04-20 | Stress corrosion resistant low-alloy pipe cluster of air cooler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1271840A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100458351C (en) * | 2003-10-02 | 2009-02-04 | 贝洱两合公司 | Charge-air cooler for motor vehicles |
| CN103105076A (en) * | 2013-02-21 | 2013-05-15 | 武汉市润之达石化设备有限公司 | Aluminum alloy surface evaporation type air cooler |
-
2000
- 2000-04-20 CN CN 00106074 patent/CN1271840A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100458351C (en) * | 2003-10-02 | 2009-02-04 | 贝洱两合公司 | Charge-air cooler for motor vehicles |
| CN103105076A (en) * | 2013-02-21 | 2013-05-15 | 武汉市润之达石化设备有限公司 | Aluminum alloy surface evaporation type air cooler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |