CN110394531A - A kind of certainly molten pipette tips of inner hole argonaut welding welding machine and its application method that exchanger tubes and tubesheets overlap connection - Google Patents
A kind of certainly molten pipette tips of inner hole argonaut welding welding machine and its application method that exchanger tubes and tubesheets overlap connection Download PDFInfo
- Publication number
- CN110394531A CN110394531A CN201810369673.2A CN201810369673A CN110394531A CN 110394531 A CN110394531 A CN 110394531A CN 201810369673 A CN201810369673 A CN 201810369673A CN 110394531 A CN110394531 A CN 110394531A
- Authority
- CN
- China
- Prior art keywords
- welding
- pipette tips
- tubesheets
- copper core
- exchanger tubes
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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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/167—Arc welding or cutting making use of shielding gas and of a non-consumable electrode
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/24—Features related to electrodes
Abstract
A kind of certainly molten pipette tips of inner hole argonaut welding welding machine and its application method that exchanger tubes and tubesheets overlap connection, belong to petrochemical industry field of welding devices, realize exchanger tubes and tubesheets root overlapping part full penetration.Pipette tips structure have connection bolt (1), positioning sleeve (2), copper core (3), gasket (4), current divider (5), ceramic jacket (6), tungsten electrode (7)；Current divider be (5) tightened in copper core (3) on；Gasket be (4) assembled in copper core (3) on；Tungsten electrode be (7) assembled in current divider (5) on；Ceramic jacket be (6) tightened in current divider (5) on；(3) (1) (2) copper core is fixed with connection bolt with positioning sleeve；(3) there is 50 degree of gradient in end to copper core；(2) there is graduation mark in outside to positioning sleeve.Application method: determining the depth that pipette tips put in tube sheet according to heat exchange tube hole depth, (10) assembled pipette tips are connect with welder head；By welding procedure welding.To guarantee that weld strength, the present invention need to be used cooperatively with the argonaut welding welding machine silk filling pipette tips of exchanger tubes and tubesheets inner hole overlap joint connection, when welding, only needs to change welding machine pipette tips.
Description
Technical field
The invention belongs to petrochemical industry field of welding devices, are related to the welding of the tube sheet and heat exchanger tube of heat exchanger.
Background technique
The tube sheet of heat exchanger is flexible tube sheet in petrochemical equipment, and heat exchanger tube and two sides tube sheet are inner hole overlap joint fine melt
Saturating structure, such structure are a kind of exchanger tubes and tubesheets connection structure forms of new complete penetraction and fusion in welding, eliminate crevice corrosion, improve
Weld bond corrosion resistant degree of corrosion, antidetonation fatigue strength, can bear the Service Environments such as high temperature, high pressure；And there is stress at contact aperture
Collect medium and small, is not likely to produce the advantages such as root of joint crackle.It is each to design because the various advantages of such welding point connection structure are significant
Institute gradually starts the welding point using this structure type, firstly the need of by making from molten when exchanger tubes and tubesheets weld
Root full penetration, but end currently, it not can be used for the argonaut welding welding machine of such welded joint structure form in the market
From molten pipette tips.
Summary of the invention
Goal of the invention: exchanger tubes and tubesheets root overlapping part full penetration is realized using from molten pipette tips welding.
The present invention provides a kind of argonaut welding welding machines of exchanger tubes and tubesheets inner hole overlap joint connection from molten pipette tips, ties
Structure has connection bolt 1, positioning sleeve 2, copper core 3, gasket 4, current divider 5, ceramic jacket 6, tungsten electrode 7；Current divider 5 is tightened in copper core 3；
Gasket 4 is assembled in copper core 3；Tungsten electrode 7 is assembled on current divider 5；Ceramic jacket 6 is tightened on current divider 5；The connection spiral shell of copper core 3
Bolt 1 and positioning sleeve 2 are fixed；There is 50 degree of gradient in 3 end of copper core, makes tungsten electrode can just be with exchanger tubes and tubesheets clinch
Position is to just；The outer diameter of positioning sleeve 2 is 1mm smaller than the internal diameter for the pore that exchanges heat on tube sheet, has graduation mark on the outside of positioning sleeve 2.
Application method of the inner hole argonaut welding welding machine of exchanger tubes and tubesheets overlap joint connection from molten pipette tips: it is first surveyed using preceding
Out on tube sheet exchange heat pore depth, the depth that pipette tips put in tube sheet is determined according to pore depth, can be according on positioning sleeve 2
The position that reaches of graduation mark observation pipette tips, by positioning sleeve 2 outside tube sheet side positioning；Assembled pipette tips are passed through into copper core 3
The wire hole at center is attached with welder head 10；Positioning is programmed on argon arc welding automatic welder；It is adjusted by welding procedure
Welding machine carries out welding, passes through heat exchanger tube 8 and 9 overlapping part root of tube sheet from molten complete fusion, and overlap exchanger tubes and tubesheets
Locate weld seam rounding off.
The invention has the advantages that: for heat exchanger tube and two sides tube sheet be inner hole overlap that full penetration structure welding provides must not
The powerful that can lack, so that the internal bore welding welding of exchanger tubes and tubesheets overlap joint connection is realized and automated, and structure is simple, system
Make it is at low cost, operation be easy, improve production efficiency.
Detailed description of the invention
Fig. 1 is the certainly molten pipette tips main view of inner hole argonaut welding welding machine of exchanger tubes and tubesheets overlap joint connection,
Fig. 2 Fig. 1 left view,
Fig. 3 is installed on welding machine from molten pipette tips for argonaut welding welding machine and carries out welding schematic diagram,
Fig. 4 is the certainly molten pipette tips material object photo of argonaut welding welding machine,
In figure: 1 connection bolt, 2 positioning sleeves, 3 copper cores, 4 gaskets, 5 current dividers, 6 ceramic jackets, 7 tungsten electrodes, 8 heat exchanger tubes, 9 tube sheets, 10
Welder head.
Specific embodiment
The following further describes the present invention with reference to the drawings.
As shown in Figure 1 and Figure 2, a kind of certainly molten pipette tips of the argonaut welding welding machine of exchanger tubes and tubesheets inner hole overlap joint connection,
Structure has connection bolt 1, positioning sleeve 2, copper core 3, gasket 4, current divider 5, ceramic jacket 6, tungsten electrode 7；Current divider 5 is tightened in copper core 3
On；Gasket 4 is assembled in copper core 3；Tungsten electrode 7 is assembled on current divider 5；Ceramic jacket 6 is tightened on current divider 5；The connection of copper core 3
Bolt 1 and positioning sleeve 2 are fixed；There is 50 degree of gradient in 3 end of copper core, overlap tungsten electrode can just with exchanger tubes and tubesheets
Position is to just；The outer diameter of positioning sleeve 2 is 1mm smaller than the internal diameter for the pore that exchanges heat on tube sheet, has graduation mark on the outside of positioning sleeve 2.
The photo in kind of the certainly molten pipette tips of the argonaut welding welding machine of assembled exchanger tubes and tubesheets inner hole overlap joint connection is such as
Shown in Fig. 4.
The inner hole argonaut welding welding machine of exchanger tubes and tubesheets overlap joint connection is from molten pipette tips application method: as shown in figure 3, making
With the preceding depth for first measuring the pore that exchanges heat on tube sheet, the depth that pipette tips put in tube sheet is determined according to pore depth, it can basis
The position that reaches of graduation mark observation pipette tips on positioning sleeve 2, by positioning sleeve 2 outside tube sheet side positioning；By assembled pipette tips
It is attached by the wire hole and welder head 10 at 3 center of copper core；Positioning is programmed on argon arc welding automatic welder；By welding
Process adjustments welding machine carries out welding, passes through heat exchanger tube 8 and 9 overlapping part root of tube sheet from molten complete fusion, and make heat exchanger tube with
Tube sheet lap-joint weld seam rounding off.
It is internal bore welding automatic argon arc welder that such argonaut welding welding machine, which is suitable for exchanger tubes and tubesheets from molten pipette tips,.
By making root full penetration from molten when the present invention can be such that exchanger tubes and tubesheets weld, but weld strength reaches from after melting
Less than design requirement.It is fully completed the welding of exchanger tubes and tubesheets, it is also necessary to which increasing root weldering meat by landfilling area again can just make
Weld strength reaches design requirement.The present invention needs to fill silk with the argonaut welding welding machine of exchanger tubes and tubesheets inner hole overlap joint connection
Pipette tips are used cooperatively, and exchanger tubes and tubesheets only need to change welding machine pipette tips, flexible and convenient operation when passing through from molten with filler wire welding.
Claims (2)
1. a kind of inner hole argonaut welding welding machine of exchanger tubes and tubesheets overlap joint connection is from molten pipette tips, it is characterized in that: its structure has
Connect bolt (1), positioning sleeve (2), copper core (3), gasket (4), current divider (5), ceramic jacket (6), tungsten electrode (7)；Current divider (5) is twisted
Tightly on copper core (3)；Gasket (4) is assembled on copper core (3)；Tungsten electrode (7) is assembled on current divider (5)；Ceramic jacket (6) is tightened in
On current divider (5)；Copper core (3) connection bolt (1) and positioning sleeve (2) are fixed；There is 50 degree oblique in described copper core (3) end
Degree, makes tungsten electrode can just be with exchanger tubes and tubesheets overlapping part to just；The outer diameter of positioning sleeve (2) on tube sheet than exchanging heat in pore
There is graduation mark in the small 1mm of diameter, positioning sleeve (2) outside.
2. a kind of inner hole argonaut welding welding machine of exchanger tubes and tubesheets overlap joint connection described in claim 1 makes from molten pipette tips
With method, it is characterized in that: determining pipette tips using the preceding depth for first measuring the pore that exchanges heat on tube sheet according to pore depth and putting in pipe
The depth of plate can observe the position that pipette tips reach according to the graduation mark on positioning sleeve (2), through positioning sleeve (2) outside tube sheet
Side positioning；Assembled pipette tips are attached by the wire hole at copper core (3) center with welder head；In argon arc welding automatic welder
On be programmed positioning；Welding machine is adjusted by welding procedure and carries out welding, passes through exchanger tubes and tubesheets overlapping part root from molten
Complete fusion, and make exchanger tubes and tubesheets lap-joint weld seam rounding off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810369673.2A CN110394531A (en) | 2018-04-24 | 2018-04-24 | A kind of certainly molten pipette tips of inner hole argonaut welding welding machine and its application method that exchanger tubes and tubesheets overlap connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810369673.2A CN110394531A (en) | 2018-04-24 | 2018-04-24 | A kind of certainly molten pipette tips of inner hole argonaut welding welding machine and its application method that exchanger tubes and tubesheets overlap connection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110394531A true CN110394531A (en) | 2019-11-01 |
Family
ID=68320227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810369673.2A Withdrawn CN110394531A (en) | 2018-04-24 | 2018-04-24 | A kind of certainly molten pipette tips of inner hole argonaut welding welding machine and its application method that exchanger tubes and tubesheets overlap connection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110394531A (en) |
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| GB1347527A (en) * | 1970-02-11 | 1974-02-27 | Co Ordinated Ind Inc | Apparatus for conducting gas and electrical current |
| GB1477655A (en) * | 1973-09-18 | 1977-06-22 | Air Liquide | Electrical arc-welding torches |
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| CN102203021A (en) * | 2008-10-31 | 2011-09-28 | 康宁股份有限公司 | Glass sheet separating device and method for using same |
| CN201342565Y (en) * | 2009-01-23 | 2009-11-11 | 北京石油化工学院 | Perforated connecting pipe and saddle-shaped seam welding equipment |
| CN102500878A (en) * | 2011-10-20 | 2012-06-20 | 渤海造船厂集团有限公司 | Automatic tungsten argon arc welding method for completely penetrated fillet weld of nuclear power main pipeline and branch pipe |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20191101 |