CN203184846U - Welding structure of heat exchange tube and tube plate - Google Patents
Welding structure of heat exchange tube and tube plate Download PDFInfo
- Publication number
- CN203184846U CN203184846U CN 201320173890 CN201320173890U CN203184846U CN 203184846 U CN203184846 U CN 203184846U CN 201320173890 CN201320173890 CN 201320173890 CN 201320173890 U CN201320173890 U CN 201320173890U CN 203184846 U CN203184846 U CN 203184846U
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- heat exchange
- welding
- exchange tube
- tube plate
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Abstract
The utility model discloses a welding structure of a heat exchange tube and a tube plate of materials with large heat conductivity coefficients, which is used for welding of a pressure container heat exchange tube and the tube plate, and belongs to the welding technical field of pressure containers. The welding structure of the heat exchange tube and the tube plate comprises the tube plate and the heat exchange tube, wherein the tube plate is processed with a ring-shaped insulated tank to enable the tube plate and the heat exchange tube to form joints after being welded, the width B of the ring-shaped insulated tank is 5-10mm, the depth of the ring-shaped insulated tank H is 3-8mm, and the wall thickness of a welding part of the tube plate and the heat exchange tube is same to the wall thickness of the heat exchange tube. The welding structure of the heat exchange tube and the tube plate solves the problems in the prior art that the materials of the heat exchange tube and the tube plate with the large heat conductivity coefficients are difficult to weld, can not be uniformly melted, and are easy to incompletely fuse. Compared with a traditional welding structure of the heat exchange tube and the tube plate, the welding structure of the heat exchange tube and the tube plate improves welding efficiency, and achieves welding of the heat exchange tube and the tube plate of the materials with the large heat conductivity coefficients.
Description
Technical field
The utility model relates to the Welding Structure of a kind of heat exchanger tube and tube sheet, is specifically related to a kind of when selecting the big material of thermal conductivity factor (as red copper, fine aluminium, aluminium alloy etc.) as heat exchanger tube for use and the Welding Structure of tube sheet.
Background technology
Select for use the big material of thermal conductivity factor (as red copper, fine aluminium, aluminium alloy etc.) in chemical industry, to use more as the heat exchanger of heat exchanger tube, as the pressure vessel manufacturer, in the welding performance and welding process of the material that thermal conductivity factor is big (as red copper, fine aluminium, aluminium alloy etc.) heat exchanger, the problem that occurs must be solved, and could guarantee performance safety and the service life of heat exchanger.For a long time, the welding of the material that thermal conductivity factor is big (as red copper, fine aluminium, aluminium alloy etc.) mainly is with soldering, gas welding, arc welding, inert gas-shielded arc welding etc.
The weldability of the material that thermal conductivity factor is big is all relatively poor, and joint performance such as mechanical property, electric conductivity and decay resistance all decrease, low-melting alloy elements vaporization during welding, and stomata sensitivity is higher, easily cracks, defective such as lack of penetration, incomplete fusion.Red copper weld seam and heat affected area crystal grain that making apparatus is used are easily thick, and strength of joint especially percentage elongation, clod wash angle descends obviously.According to the heat exchanger instructions for use, must guarantee tightness and the fastness of each connector, defectives such as excessive deformation and crackle must not be arranged, otherwise will cause major accidents such as dielectric leakage, aggravation corrosion.
Therefore, find a kind of suitable big material (as red copper, fine aluminium, the aluminium alloy etc.) heat exchanger tube of thermal conductivity factor and Welding Structure of tube sheet of being used for, can reduce to weld difficulty and workload, reduce the wlding consumption, the raising welding quality.
The utility model content
The purpose of this utility model is to provide the Welding Structure of a kind of heat exchanger tube and tube sheet, when selecting for use the big material of thermal conductivity factor (as red copper, fine aluminium, aluminium alloy etc.) to do heat exchanger tube and tube sheet welding with pressure container, traditional welding structure welding difficulty is big, workload is big, the welding first-time qualification rate is low, and the amount of reprocessing is big and reprocess technical problems such as difficulty is big.
The technical solution of the utility model is:
The Welding Structure of a kind of heat exchanger tube and tube sheet comprises tube sheet and heat exchanger tube, is processed with annular heat dam on the described tube sheet and makes described tube sheet and heat exchanger tube welding back form weld seam.
The width B of described annular heat dam is that 5 ~ 10mm, depth H are 3 ~ 8mm; Described tube sheet is identical with the heat exchanger tube wall thickness with heat exchanger tube welding portion wall thickness P.
The utlity model has following advantage:
Thermal conductivity factor as materials such as red coppers is very big, and welding heat did not also have fusing with weldment when the beginning welded, and heat is just a large amount of lost.Be down to rapidly below the weldment fusion temperature by weldering position temperature, welded the position and can't melt and can't carry out seal weld.At this problem, the utility model makes welding heat can not scatter and disappear rapidly by increasing annular heat dam, improves the utilization rate of welding heat; And equated with the wall thickness of heat exchanger tube by the tube sheet mother metal that welded, make the welding heat uniform distribution.
The utility model is compared with the Welding Structure of tube sheet with traditional heat exchanger tube, can improve welding efficiency, makes the heat exchanger tube of the material that thermal conductivity factor is big and tube sheet welding be achieved.In the heat exchanger tube and tube sheet welding of the big pressure vessel of thermal conductivity factor, can reduce the welding repair rate, improve the welding first-time qualification rate, be conducive to enhance productivity, reduce welding cost, the reduction of erection time.
The utility model is applicable to the material that thermal conductivity factor is big, as the heat exchanger tube of red copper, fine aluminium, aluminium alloy etc. and the welding of tube sheet.
Description of drawings
Fig. 1 is the Welding Structure schematic diagram of the utility model heat exchanger tube and tube sheet.
Among the figure: 1-tube sheet, 2-heat exchanger tube, 3-weld seam 4-annular heat dam
D-heat exchanger tube diameter of phi-annular heat dam diameter
P-tube sheet and heat exchanger tube welding portion wall thickness B-annular heat dam width
H-annular heat dam the degree of depth.
The specific embodiment
Below in conjunction with accompanying drawing the utility model and beneficial effect thereof are described further.
With reference to Fig. 1, the Welding Structure of a kind of heat exchanger tube and tube sheet comprises tube sheet 1 and heat exchanger tube 2, is processed with annular heat dam 4 on the described tube sheet 1 and makes described tube sheet 1 and heat exchanger tube 2 welding backs form weld seam 3.The width B of described annular heat dam 4 be 56 or 78 or 9 or 10mm, depth H be 3 or 4 or 5 or 6 or 7 or during 8mm, the material that all thermal conductivity factors are big such as red copper, fine aluminium, aluminium alloy etc. all are suitable for; Described tube sheet 1 is identical with heat exchanger tube 2 wall thickness with heat exchanger tube welding portion wall thickness P.Annular heat dam diameter of phi can be determined with heat exchanger tube 2 welding portion wall thickness P according to annular heat dam width B, heat exchanger tube 2 diameter D and tube sheet 1.As: the heat dam width B is 5 mm, heat exchanger tube 2) diameter D is 19mm, tube sheet 1 is all 2mm mutually with heat exchanger tube 2 welding portion wall thickness P and heat exchanger tube 2 wall thickness, and then the heat dam diameter of phi is 33mm; Or press Φ=D+2*B+2*P (mm) formula and calculate.
Claims (2)
1. the Welding Structure of a heat exchanger tube and tube sheet comprises tube sheet (1) and heat exchanger tube (2), it is characterized in that: be processed with annular heat dam (4) on the described tube sheet (1) and make described tube sheet (1) and heat exchanger tube (2) welding back form weld seam (3).
2. the Welding Structure of a kind of heat exchanger tube according to claim 1 and tube sheet, it is characterized in that: the width B of described annular heat dam (4) is that 5 ~ 10mm, depth H are 3 ~ 8mm; Described tube sheet (1) is identical with heat exchanger tube (2) wall thickness with heat exchanger tube welding portion wall thickness P.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320173890 CN203184846U (en) | 2013-04-09 | 2013-04-09 | Welding structure of heat exchange tube and tube plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320173890 CN203184846U (en) | 2013-04-09 | 2013-04-09 | Welding structure of heat exchange tube and tube plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203184846U true CN203184846U (en) | 2013-09-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320173890 Expired - Fee Related CN203184846U (en) | 2013-04-09 | 2013-04-09 | Welding structure of heat exchange tube and tube plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203184846U (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 |
| CN109317789A (en) * | 2018-11-30 | 2019-02-12 | 山东美陵博德化工机械有限公司 | The welding method of heat exchanger built-up welding tube sheet and T91 heat exchanger tube |
-
2013
- 2013-04-09 CN CN 201320173890 patent/CN203184846U/en not_active Expired - Fee Related
Cited By (3)
| 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 |
| CN109317789A (en) * | 2018-11-30 | 2019-02-12 | 山东美陵博德化工机械有限公司 | The welding method of heat exchanger built-up welding tube sheet and T91 heat exchanger tube |
| CN109317789B (en) * | 2018-11-30 | 2020-11-10 | 山东美陵博德化工机械有限公司 | Welding method for surfacing pipe plate of heat exchanger and T91 heat exchange pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130911 Termination date: 20180409 |
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| CF01 | Termination of patent right due to non-payment of annual fee |