CN103386540A - Protection tooling for inner wall of heat exchange pipe during argon arc welding of heat exchange pipe and pipe plate - Google Patents
Protection tooling for inner wall of heat exchange pipe during argon arc welding of heat exchange pipe and pipe plate Download PDFInfo
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- CN103386540A CN103386540A CN2013103215763A CN201310321576A CN103386540A CN 103386540 A CN103386540 A CN 103386540A CN 2013103215763 A CN2013103215763 A CN 2013103215763A CN 201310321576 A CN201310321576 A CN 201310321576A CN 103386540 A CN103386540 A CN 103386540A
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- heat exchange
- wall
- heat exchanger
- exchange pipe
- exchanger tube
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Abstract
The invention discloses a protection tooling for the inner wall of a heat exchange pipe during the argon arc welding of the heat exchange pipe and a pipe plate. The protection tooling comprises a protection module, wherein the outer wall of the protection module is pasted with the inner wall of the heat exchange pipe, a main passage is arranged in the protection module, the inner end of the main passage is connected with sub passages branched towards the two sides, the outer ends of the two sub passages are respectively communicated with inwards recessed grooves formed in the outer wall of the protection module, the grooves and the inner wall of the heat exchange pipe form a cavity for accommodating protection gas, and the outer end of the main passage is provided with a gas inlet communicated with a gas source of the protection gas. The protection tooling has the advantages that the structure is simple and practical, and the protection gas is introduced into the cavity formed by the inner wall of the heat exchange pipe and the grooves formed in the protection module, so the inner wall of the heat exchange pipe is not in contact with the air during the welding, and the inner wall of the corresponding heat exchange pipe in the welding part cannot be oxidized through the temperature rise.
Description
Technical field
The protective device of heat exchanger tube inwall while the present invention relates to for titanium heat exchanger heat exchanger tube and the common argon arc welding of tube sheet.
Background technology
While carrying out common argon arc welding between heat exchanger tube and tube sheet in the titanium heat exchanger, the contact site of welding gun pore on heat exchanger tube outer wall and tube sheet carries out welding operation.Because welding temperature is very high, the inner wall temperature of the heat exchanger tube of weld also can raise, thereby easily causes heat exchanger tube inner wall oxide corresponding to weld.In use, in case pass into corrosive liquids in heat exchanger tube, the oxidation of heat exchanger tube inwall can affect the normal use of heat exchanger tube to the titanium heat exchanger, therefore just need to stop the oxidation of heat exchanger tube inwall when heat exchanger tube and Tube-sheet Welding.
Summary of the invention
The objective of the invention is: the protecting tool set-up of heat exchanger tube inwall when a kind of heat exchanger tube that can effectively prevent the heat exchanger tube inner wall oxide and tube sheet argon arc welding are provided.
For achieving the above object; the technical solution used in the present invention is: the protecting tool set-up of heat exchanger tube inwall when heat exchanger tube and tube sheet argon arc welding; comprise: the protection module of outer wall and the laminating of heat exchanger tube inwall; be provided with main channel in protection module; the inner of main channel is connected with the subchannel that diverges to both sides; article two, the outer end of subchannel is connected with inside recessed groove on the protection module outer wall respectively; described groove and heat exchanger tube inwall form the cavity that holds protective gas, and the outer end of described main channel is provided with the air inlet that is connected with the source of the gas of protective gas.
Further, the protecting tool set-up of heat exchanger tube inwall when aforesaid heat exchanger tube and tube sheet argon arc welding, wherein, the described groove inwardly recessed degree of depth is 3～5mm.
Advantage of the present invention is: this is simple and practical; pass into protective gas in the cavity that forms to the inwall of the groove by on protection module and heat exchanger tube; thereby while making welding, the inwall of heat exchanger tube does not contact with air, and the inwall of the heat exchanger tube that weld is corresponding so just oxidation can not occur because temperature raises.
Description of drawings
The structural representation of the protecting tool set-up of heat exchanger tube inwall when Fig. 1 is heat exchanger tube of the present invention and tube sheet argon arc welding.
The specific embodiment
The present invention is described in further detail below in conjunction with accompanying drawing and preferred embodiment.
As shown in Figure 1; the protecting tool set-up of heat exchanger tube inwall when heat exchanger tube and tube sheet argon arc welding; comprise: the protection module 2 of outer wall and heat exchanger tube 1 inwall laminating; be provided with main channel 3 in protection module 2; the inner of main channel 3 is connected with the subchannel 4 that diverges to both sides; article two, the outer end of subchannel 4 is connected with inside recessed groove 5 on protection module 2 outer walls respectively; described groove 5 forms with the inwall of heat exchanger tube 1 cavity that holds protective gas, and the outer end of described main channel 3 is provided with the air inlet 6 that is connected with the source of the gas of protective gas.Generally, the inside recessed degree of depth of groove 5 is 3～5mm.
operation principle is as follows: when heat exchanger tube 1 and tube sheet 7 need to carry out common argon arc welding, protection module 2 is placed in heat exchanger tube 1, and make the groove 5 on protection module 2 form with the inwall of weld seam correspondence position the cavity that holds protective gas, pass into protective gas from air inlet 6, as argon gas, protective gas enters in subchannel 4 through main channel 3, then enter in the cavity that the inwall by groove 5 and heat exchanger tube 1 forms, constantly pass into protective gas, air in cavity is all discharged, then just can carry out the welding operation of heat exchanger tube 1 and tube sheet 7, protective gas in cavity makes the inwall of heat exchanger tube 1 not contact with air, oxidation just can not occur because temperature raises in the inwall of the heat exchanger tube 1 that weld is corresponding like this.
Claims (2)
1. the protecting tool set-up of heat exchanger tube inwall when heat exchanger tube and tube sheet argon arc welding; it is characterized in that: comprising: the protection module of outer wall and the laminating of heat exchanger tube inwall; be provided with main channel in protection module; the inner of main channel is connected with the subchannel that diverges to both sides; article two, the outer end of subchannel is connected with inside recessed groove on the protection module outer wall respectively; described groove and heat exchanger tube inwall form the cavity that holds protective gas, and the outer end of described main channel is provided with the air inlet that is connected with the source of the gas of protective gas.
2. the protecting tool set-up of heat exchanger tube inwall when heat exchanger tube according to claim 1 and tube sheet argon arc welding, it is characterized in that: the described groove inwardly recessed degree of depth is 3～5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103215763A CN103386540A (en) | 2013-07-29 | 2013-07-29 | Protection tooling for inner wall of heat exchange pipe during argon arc welding of heat exchange pipe and pipe plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103215763A CN103386540A (en) | 2013-07-29 | 2013-07-29 | Protection tooling for inner wall of heat exchange pipe during argon arc welding of heat exchange pipe and pipe plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103386540A true CN103386540A (en) | 2013-11-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103215763A Pending CN103386540A (en) | 2013-07-29 | 2013-07-29 | Protection tooling for inner wall of heat exchange pipe during argon arc welding of heat exchange pipe and pipe plate |
Country Status (1)
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| CN (1) | CN103386540A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105328297A (en) * | 2015-11-30 | 2016-02-17 | 含山瑞可金属有限公司 | Welding protection method, application and device |
| CN107088698A (en) * | 2017-03-10 | 2017-08-25 | 鲁西工业装备有限公司 | A kind of exchanger tubes and tubesheets automatic welding positioning and cooling device and automatic soldering method |
| CN107234356A (en) * | 2017-08-02 | 2017-10-10 | 枣庄福源环能机械制造有限公司 | The stainless steel pipe ring circle automatic welding component and its manufacture method of heating radiator |
| CN107825014A (en) * | 2017-12-01 | 2018-03-23 | 四川科新机电股份有限公司 | The backside gas protecting tool set-up and guard method that a kind of tube-to-tube sheet connection mutually welds |
| CN108188553A (en) * | 2018-01-30 | 2018-06-22 | 南京德邦金属装备工程股份有限公司 | A kind of zirconium Tube Sheet of Heat Exchanger brilliance welding line automatic welding gas shield device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101961812A (en) * | 2010-09-17 | 2011-02-02 | 浙江天兴管业有限公司 | Vertical circular seam welding machine |
| CN202062174U (en) * | 2011-05-12 | 2011-12-07 | 陕西建工集团设备安装工程有限公司 | Internal gas protecting device for pipeline welding |
| US20120145770A1 (en) * | 2010-12-14 | 2012-06-14 | Song Keng Yew James | Apparatus for increasing coverage of shielding gas during wire bonding |
| CN203418217U (en) * | 2013-07-29 | 2014-02-05 | 张家港化工机械股份有限公司 | Heat exchange tube inner wall protecting tool when argon arc welding is carried out on heat exchange tube and tube plate |
-
2013
- 2013-07-29 CN CN2013103215763A patent/CN103386540A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101961812A (en) * | 2010-09-17 | 2011-02-02 | 浙江天兴管业有限公司 | Vertical circular seam welding machine |
| US20120145770A1 (en) * | 2010-12-14 | 2012-06-14 | Song Keng Yew James | Apparatus for increasing coverage of shielding gas during wire bonding |
| CN202062174U (en) * | 2011-05-12 | 2011-12-07 | 陕西建工集团设备安装工程有限公司 | Internal gas protecting device for pipeline welding |
| CN203418217U (en) * | 2013-07-29 | 2014-02-05 | 张家港化工机械股份有限公司 | Heat exchange tube inner wall protecting tool when argon arc welding is carried out on heat exchange tube and tube plate |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105328297A (en) * | 2015-11-30 | 2016-02-17 | 含山瑞可金属有限公司 | Welding protection method, application and device |
| CN107088698A (en) * | 2017-03-10 | 2017-08-25 | 鲁西工业装备有限公司 | A kind of exchanger tubes and tubesheets automatic welding positioning and cooling device and automatic soldering method |
| CN107234356A (en) * | 2017-08-02 | 2017-10-10 | 枣庄福源环能机械制造有限公司 | The stainless steel pipe ring circle automatic welding component and its manufacture method of heating radiator |
| CN107234356B (en) * | 2017-08-02 | 2022-06-28 | 枣庄福源环能机械制造有限公司 | Automatic welding component for stainless steel pipe ring of heating radiator and manufacturing method thereof |
| CN107825014A (en) * | 2017-12-01 | 2018-03-23 | 四川科新机电股份有限公司 | The backside gas protecting tool set-up and guard method that a kind of tube-to-tube sheet connection mutually welds |
| CN108188553A (en) * | 2018-01-30 | 2018-06-22 | 南京德邦金属装备工程股份有限公司 | A kind of zirconium Tube Sheet of Heat Exchanger brilliance welding line automatic welding gas shield device |
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Application publication date: 20131113 |