CN2572327Y - Carbon steel, aluminium and polybdenum coadmixture heat-exchanger - Google Patents
Carbon steel, aluminium and polybdenum coadmixture heat-exchanger Download PDFInfo
- Publication number
- CN2572327Y CN2572327Y CN 02269396 CN02269396U CN2572327Y CN 2572327 Y CN2572327 Y CN 2572327Y CN 02269396 CN02269396 CN 02269396 CN 02269396 U CN02269396 U CN 02269396U CN 2572327 Y CN2572327 Y CN 2572327Y
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- CN
- China
- Prior art keywords
- carbon steel
- heat exchanger
- tube
- aluminium
- molybdenum
- 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.)
- Expired - Lifetime
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model relates to a carbon steel, aluminum and molybdenum diffused heat exchanger, which belongs to the field of shell-and-tube heat exchanger and comprises tube plates arranged on both ends of a shell, heat exchanging tubes fixed on the tube plates fixed on both ends, and end covers arranged on both ends of the closed shell. The carbon steel, aluminum and molybdenum diffused heat exchanger is characterized in that the inner and the outer walls of the carbon steel heat exchanging tube are compounded with carbon steel, aluminum and molybdenum diffused alloy layers; base material surface layers at the parts of the tube plates, the end covers, etc. can also be compounded with carbon steel, aluminum and molybdenum diffused alloy layers. The utility model which has the advantages of good corrosion-resisting properties, long service life, the replacement of a high alloy heat exchanger with high price, etc. can be widely suitable for the occasions of tube array heat exchangers in various types, such as a fixed type, a float head type, a multipass type, a shell-and-tube type, etc. The utility model is a high efficient, inexpensive and corrosion resistant new updating product of a carbon steel heat exchanging tube or an alloy steel heat exchanging tube.
Description
Technical field
The utility model belongs to the shell-and-tube heat exchanger field, specifically is a kind of carbon steel aluminium and polybdenum coadmixture heat exchanger.
Background technology
Shell-and-tube heat exchanger obtains extensively utilization because of its excellent performance in petrochemical industry.But the high-temperature oxydation in the crude refining production process, sulfide and aphthenic acids environment to the seriously corroded of equipment, become puzzled people in the industry's a difficult problem.
The utility model content
The purpose of this utility model is that exploitation is a kind of for the corrosion resistant carbon steel aluminium and polybdenum coadmixture heat exchanger that uses under petroleum chemical enterprise's specific condition.
The technical solution of the utility model is: develop a kind of carbon steel aluminium and polybdenum coadmixture heat exchanger, comprise the tube sheet that is arranged on the housing two ends, be fixed on the heat exchanger tube on the tube sheet of two ends, the end cap at closed shell two ends is characterized in that the inner and outer wall of carbon steel heat exchanger tube is compounded with aluminium-molybdenum-carbon steel cemented alloy layer altogether.
Cemented alloy layer is smooth, fine and close altogether, infiltration is diffused in the mother metal top layer equably for the compound aluminium-molybdenum-carbon steel of the inside and outside wall of its medium carbon steel heat exchanger tube, and alloy-layer and mother metal are combined as a whole; Compound aluminium-molybdenum-the carbon steel of the inside and outside wall of its carbon steel heat exchanger tube is total to cemented alloy layer thickness δ=0.1～0.5mm:
Its tube sheet surface also can be compounded with aluminium-molybdenum-carbon steel cemented alloy layer altogether; Its end cap inner surface also can be compounded with aluminium-molybdenum-carbon steel cemented alloy layer altogether.
The utility model has the advantages that: carbon steel aluminium and polybdenum coadmixture heat exchanger excellent anti-corrosion performance, long service life, the high alloy heat exchanger that desirable cost is high.
Description of drawings
Fig. 1 is an example structure of the utility model (broken section) schematic diagram;
Fig. 2 is the structure enlarged diagram that the aluminium-molybdenum-carbon steel of the utility model employing oozes heat exchanger tube altogether.
The specific embodiment
Among the figure, aluminium-molybdenum-carbon steel oozes heat exchanger tube 1 altogether and is installed on the tube sheet 2, the inside and outside top layer of wall thickness 2～2.5mm carbon steel pipe mother metal 8, smooth, fine and close, infiltration aluminium-molybdenum-carbon steel cemented alloy layer 9 altogether of spreading layer thickness δ=a 0.1～0.5mm equably; Processing, manufacturing, installation and ordinary carbon steel goods are basic identical.If arts demand also can be provided with aluminium-molybdenum-carbon steel cemented alloy layer altogether on the mother metal top layer at positions such as tube sheet and end cap.The 3rd, end cap, the 4,5 and 6, the 7th, when tube side or shell side, the import and export of different cold and hot fluid.
The occasion of various ways tubular heat exchangers such as the utility model can be widely used in fixing, floating head, multipass, shell is as efficient, inexpensive, the corrosion resistant regeneration product of carbon steel, steel alloy heat exchanger tube.
Claims (5)
1. carbon steel aluminium and polybdenum coadmixture heat exchanger comprises the tube sheet that is arranged on the housing two ends, is fixed on the heat exchanger tube on the tube sheet of two ends and the end cap at closed shell two ends, and it is characterized in that: the inner and outer wall of carbon steel heat exchanger tube is compounded with aluminium-molybdenum-carbon steel cemented alloy layer altogether.
2. according to the described carbon steel aluminium and polybdenum coadmixture of claim 1 heat exchanger, cemented alloy layer is smooth, fine and close altogether, infiltration is diffused in the mother metal top layer equably to it is characterized in that the compound aluminium-molybdenum-carbon steel of the inside and outside wall of carbon steel heat exchanger tube, and alloy-layer and mother metal are combined as a whole.
3. according to the described carbon steel aluminium and polybdenum coadmixture of claim 1 heat exchanger, it is characterized in that the compound aluminium-molybdenum-carbon steel of the inside and outside wall of carbon steel heat exchanger tube cemented alloy layer thickness δ=0.1～0.5mm altogether.
4. according to the described carbon steel aluminium and polybdenum coadmixture of claim 1 heat exchanger, it is characterized in that the tube sheet surface recombination has aluminium-molybdenum-carbon steel cemented alloy layer altogether.
5. according to the described carbon steel aluminium and polybdenum coadmixture of claim 1 heat exchanger, it is characterized in that the end cap inner surface is compounded with aluminium-molybdenum-carbon steel cemented alloy layer altogether.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02269396 CN2572327Y (en) | 2002-09-12 | 2002-09-12 | Carbon steel, aluminium and polybdenum coadmixture heat-exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02269396 CN2572327Y (en) | 2002-09-12 | 2002-09-12 | Carbon steel, aluminium and polybdenum coadmixture heat-exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2572327Y true CN2572327Y (en) | 2003-09-10 |
Family
ID=33734642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02269396 Expired - Lifetime CN2572327Y (en) | 2002-09-12 | 2002-09-12 | Carbon steel, aluminium and polybdenum coadmixture heat-exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2572327Y (en) |
-
2002
- 2002-09-12 CN CN 02269396 patent/CN2572327Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZIBO WANCHANG CHEMICAL MANUFACTURE CO., LTD. Free format text: FORMER OWNER: WANCHANG PETROCHEMICAL MACHINERY PLANT, LINZI ZIBO CITY Effective date: 20050916 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20050916 Address after: 255424 emperor Town, Linzi District, Shandong, Zibo Patentee after: Zibo Wanchang Chemical Equipment Co., Ltd. Address before: 255424 emperor Town, Linzi District, Shandong, Zibo Patentee before: Wangchang Petrochemical Machinery Factory, Linzi, Zibo City |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120912 Granted publication date: 20030910 |