CN101607341A - A kind of heat exchanger cooling tube and tube sheet bimetal welding technology - Google Patents
A kind of heat exchanger cooling tube and tube sheet bimetal welding technology Download PDFInfo
- Publication number
- CN101607341A CN101607341A CNA2009100616898A CN200910061689A CN101607341A CN 101607341 A CN101607341 A CN 101607341A CN A2009100616898 A CNA2009100616898 A CN A2009100616898A CN 200910061689 A CN200910061689 A CN 200910061689A CN 101607341 A CN101607341 A CN 101607341A
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- China
- Prior art keywords
- tube
- tube sheet
- heat exchanger
- welding
- cooling tube
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- 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.)
- Granted
Links
- 238000003466 welding Methods 0.000 title claims abstract description 32
- 238000001816 cooling Methods 0.000 title claims abstract description 18
- 238000005516 engineering process Methods 0.000 title claims abstract description 10
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910003322 NiCu Inorganic materials 0.000 claims abstract description 11
- 229910052786 argon Inorganic materials 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 229910045601 alloy Inorganic materials 0.000 abstract description 5
- 239000000956 alloy Substances 0.000 abstract description 5
- 239000000126 substance Substances 0.000 abstract description 4
- 239000002184 metal Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009659 non-destructive testing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The present invention relates to mechanical manufacturing field, be a kind of heat exchanger cooling tube and tube sheet bimetal welding technology, this technology is that the NiCu cooling tube is inserted on the CS tube sheet, connecting portion to tube head and tube sheet welds, it is characterized in that: selecting diameter for use is the BFe10-1-1 argon arc welding wire of φ 0.8mm, adopt the argon arc welding machine, set electric current 60-120A, speed of welding is that 75mm/min welds; The invention solves heat exchanger cooling tube and tube sheet is the problem that different metal is difficult to weld, and has broken through traditional concept, has realized the welding of CS-NiCu alloy bimetal, make the design of heat exchanger, tube sheet can adopt simple substance CS material, has reduced manufacturing cost, has shortened the manufacturing cycle of heat exchanger.
Description
(1) technical field:
The present invention relates to mechanical manufacturing field, is a kind of heat exchanger cooling tube and tube sheet bimetal welding technology.
(2) background technology:
What the original overwhelming majority of the cooler of some large-scale compressor companies adopted on the international market at present is imported product, because of the needs that reduce cost domesticize, the terminal cooler pressure of compressor is higher, generally in tens Palestine and Israels, what the cooling tube that has adopted is the NiCu alloy, because structure, intensity needs and requirement for anticorrosion, the tube sheet equipped with cooling tube then generally will adopt the CS material to make, traditional idea is, welding between the different materials can not be ensured the quality of products, and is difficult to realize, therefore, for seal request cooling tube and the tube sheet of guaranteeing the tube and tube plate will carry out the intensity welding, what original imported product tube sheet adopted is the CS-NiCu clad tubesheet, make the welding position of cooling tube and tube sheet belong to the same material welding, and CS-NiCu clad tubesheet supply of material producer is few, manufacturing cycle is long, and cost is higher.
(3) summary of the invention:
Purpose of the present invention is wanted breaking conventional conception exactly, realizes the welding of CS-NiCu alloy bimetal, thereby makes tube sheet can adopt simple substance CS material to make, and reduces cost, and proposes a kind of heat exchanger cooling tube and tube sheet bimetal welding technology.
Concrete scheme of the present invention is: the NiCu cooling tube is inserted on the CS tube sheet, connecting portion to tube head and tube sheet welds, it is characterized in that: selecting diameter for use is the BFe10-1-1 argon arc welding wire of φ 0.8mm, adopt the argon arc welding machine, set electric current 60-120A, speed of welding is that 75mm/min welds.
The present invention is by exploration and research to welding method, adopt multiple welding method to carry out soldering test, select rational welding material, parameter such as speed of welding and electric current, finally realized CS-NiCu alloy bimetal welding procedure, broken traditional concept, made in the design of heat exchanger, tube sheet can adopt the CS material of simple substance, thereby reduces greatly the manufacturing cost and the production cycle of heat exchanger.
(4) description of drawings:
Accompanying drawing is the schematic diagram of welding position of the present invention.
Among the figure: 1-cooling tube, 2-tube sheet, 3-weld.
(5) specific embodiment:
Referring to accompanying drawing, adopt the NiCu alloy to make cooling tube 1, adopt simple substance CS carbon steel to make tube sheet 2, NiCu cooling tube 1 is inserted on the CS tube sheet 2, connecting portion (weld) 3 to tube head and tube sheet welds, and it is the BFe10-1-1 argon arc welding wire of φ 0.8mm that this welding procedure is selected diameter for use, adopts the argon arc welding machine, set electric current 60-120A, speed of welding is that 75mm/min welds.After adopting technology of the present invention to cooling tube and the welding of tube sheet different metal, can form high-quality shaping weld seam, the Non-Destructive Testing zero defect, tensile strength is finished and is met the requirements.
Claims (1)
1. heat exchanger cooling tube and tube sheet bimetal welding technology, this technology is that the NiCu cooling tube is inserted on the CS tube sheet, connecting portion to tube head and tube sheet welds, it is characterized in that: selecting diameter for use is the BFe10-1-1 argon arc welding wire of φ 0.8mm, adopt the argon arc welding machine, set electric current 60-120A, speed of welding is that 75mm/min welds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100616898A CN101607341B (en) | 2009-04-16 | 2009-04-16 | Heat exchanger cooling tube and tube plate bimetal welding technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100616898A CN101607341B (en) | 2009-04-16 | 2009-04-16 | Heat exchanger cooling tube and tube plate bimetal welding technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101607341A true CN101607341A (en) | 2009-12-23 |
| CN101607341B CN101607341B (en) | 2010-07-14 |
Family
ID=41481338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100616898A Active CN101607341B (en) | 2009-04-16 | 2009-04-16 | Heat exchanger cooling tube and tube plate bimetal welding technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101607341B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103192192A (en) * | 2013-04-11 | 2013-07-10 | 甘肃蓝科石化高新装备股份有限公司 | Welded structure of red copper heat exchange tube and tube plate and welding technology of the welding structure |
| CN104439639A (en) * | 2014-11-19 | 2015-03-25 | 柳州凯通机械有限公司 | Cooler tube plate and cooling tube welding method |
-
2009
- 2009-04-16 CN CN2009100616898A patent/CN101607341B/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103192192A (en) * | 2013-04-11 | 2013-07-10 | 甘肃蓝科石化高新装备股份有限公司 | Welded structure of red copper heat exchange tube and tube plate and welding technology of the welding structure |
| CN104439639A (en) * | 2014-11-19 | 2015-03-25 | 柳州凯通机械有限公司 | Cooler tube plate and cooling tube welding method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101607341B (en) | 2010-07-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A bimetallic welding process for cooling tubes and tube sheets in heat exchangers Granted publication date: 20100714 Pledgee: Bank of Communications Co.,Ltd. Huangshi Branch Pledgor: DAYA SREAL HEAT EXCHANGER CO.,LTD. Registration number: Y2024980008376 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |