CN103394797B - The protecting tool set-up of heat exchanger tube outer wall during exchanger tubes and tubesheets Deep Hole Welding - Google Patents
The protecting tool set-up of heat exchanger tube outer wall during exchanger tubes and tubesheets Deep Hole Welding Download PDFInfo
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- CN103394797B CN103394797B CN201310321423.9A CN201310321423A CN103394797B CN 103394797 B CN103394797 B CN 103394797B CN 201310321423 A CN201310321423 A CN 201310321423A CN 103394797 B CN103394797 B CN 103394797B
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Abstract
The protecting tool set-up of heat exchanger tube outer wall when the invention discloses a kind of exchanger tubes and tubesheets Deep Hole Welding that can effectively prevent heat exchanger tube outer wall from aoxidizing, including: to a pair Hough protection pipe being combined in outside heat exchanger tube, one end of two Hough protection pipes acts against on tube sheet, the inwall of the other end of two Hough protection pipes abuts against on heat exchanger tube, it is respectively arranged with snap-ring groove along same circumference on the outer wall of two Hough protection pipes after involutory, snap-ring groove is provided with the clip making two Hough protection pipes holdings involutory, it is provided with, on one of them Hough protection pipe, the air inlet that the source of the gas with protective gas is connected, form, between inwall and the outer wall of heat exchanger tube of two Hough protection pipes after involutory, the gap being connected with air inlet, the width in gap guarantee to be contained in the weld seam of exchanger tubes and tubesheets involutory after two Houghs protection pipes in.
Description
Technical field
The present invention relates to the protection device of heat exchanger tube outer wall during exchanger tubes and tubesheets Deep Hole Welding in superheater.
Background technology
Superheater needs between exchanger tubes and tubesheets carry out Deep Hole Welding.During Deep Hole Welding, welding gun is subjected in stretching into heat exchanger tube, and the argon in welding gun can form protective layer in heat exchanger tube inwall, causes heat exchanger tube inner wall oxide because heat exchanger tube inner wall temperature raises when preventing from welding with this.But while heat exchanger tube inner wall temperature raises, its outside wall temperature also can raise accordingly, and when Deep Hole Welding, the outer wall of heat exchanger tube does not the most set protection device at present, thus is very easy to cause outer wall to aoxidize because outside wall temperature raises.
Summary of the invention
It is an object of the invention to: the protecting tool set-up of heat exchanger tube outer wall when a kind of exchanger tubes and tubesheets Deep Hole Welding that can effectively prevent heat exchanger tube outer wall from aoxidizing is provided.
For achieving the above object, the technical solution used in the present invention is: the protecting tool set-up of heat exchanger tube outer wall during exchanger tubes and tubesheets Deep Hole Welding, including: to a pair Hough protection pipe being combined in outside heat exchanger tube, one end of two Hough protection pipes acts against on tube sheet, the inwall of the other end of two Hough protection pipes abuts against on heat exchanger tube, it is respectively arranged with snap-ring groove along same circumference on the outer wall of two Hough protection pipes after involutory, snap-ring groove is provided with the clip making two Hough protection pipes holdings involutory, it is provided with, on one of them Hough protection pipe, the air inlet that the source of the gas with protective gas is connected, form, between inwall and the outer wall of heat exchanger tube of two Hough protection pipes after involutory, the gap being connected with air inlet, the width in gap guarantee to be contained in the weld seam of exchanger tubes and tubesheets involutory after two Houghs protection pipes in.
Further, the protecting tool set-up of heat exchanger tube outer wall during aforesaid exchanger tubes and tubesheets Deep Hole Welding, wherein, involutory after two Houghs protection pipes inwall and the outer wall of heat exchanger tube between the width in gap that formed be 5-8mm.
The invention have the advantage that this is simple and practical; by two Hough protection pipes to being combined in outside heat exchanger tube; and make the weld seam of exchanger tubes and tubesheets be contained in involutory after two Houghs protection pipe in; from which the air inlet pipe on a Hough protection pipe is passed through protective gas; protective gas enters in the gap between two Hough protection pipes and heat exchanger tube and forms protective layer; protective layer can be prevented effectively from heat exchanger tube outer wall and air contact; so that during Deep Hole Welding, the outer wall of heat exchanger tube will not aoxidize because temperature raises.
Accompanying drawing explanation
The use structural representation of the protecting tool set-up of heat exchanger tube outer wall when Fig. 1 is exchanger tubes and tubesheets Deep Hole Welding of the present invention.
Detailed description of the invention
The present invention is described in further detail with preferred embodiment below in conjunction with the accompanying drawings.
nullAs shown in Figure 1，The protecting tool set-up of heat exchanger tube outer wall during exchanger tubes and tubesheets Deep Hole Welding，Including: to a pair Hough protection pipe being combined in outside heat exchanger tube 3，It is respectively the first Hough protection pipe 1 and the second Hough protection pipe 2，One end of first Hough protection pipe 1 and the second Hough protection pipe 2 acts against on tube sheet 4，The inwall of the other end of the first Hough protection pipe 1 and the second Hough protection pipe 2 abuts against on the outer wall of heat exchanger tube 3，The first Hough protection pipe 1 and the second Hough after involutory are protected and are respectively arranged with snap-ring groove along same circumference on the outer wall of pipe 2，Snap-ring groove is provided with the clip 5 making two Hough protection pipes holdings involutory，The present embodiment is provided with, on the second Hough protection pipe 2, the air inlet 7 that the source of the gas with protective gas is connected，Form, between inwall and the outer wall of heat exchanger tube 3 of two Hough protection pipes after involutory, the gap 8 being connected with air inlet 7，The width in gap 8 guarantee to be contained in heat exchanger tube 3 and the weld seam 6 of tube sheet 4 involutory after two Houghs protection pipes in，The width in general gap 8 is 5-8mm.
Operation principle is as follows: when heat exchanger tube 1 and tube sheet 4 carry out Deep Hole Welding; protect pipe 2 to being combined in outside heat exchanger tube 3 first Hough protection pipe 1 and the second Hough; and make one end of the first Hough protection pipe 1 and the second Hough protection pipe 2 act against on tube sheet 4; the inwall of both other ends abuts against on the outer wall of heat exchanger tube 3 so that heat exchanger tube 1 and the weld seam 6 of tube sheet 4 be contained in involutory after the first Hough protection pipe 1 and the second Hough protection pipe 2 in；Then clip 5 is fastened in snap-ring groove and makes two Hough protection pipes keep involutory；The source of the gas of protective gas is passed through the protective gas of similar argon etc in air inlet 7; protective gas enters in the gap 8 between inwall and the heat exchanger tube 3 of two Hough protection pipes and forms protective layer; so can be prevented effectively from outer wall and the air contact of heat exchanger tube 1 when welding, thus prevent the outer wall of heat exchanger tube 1 from aoxidizing because temperature raises.
Claims (2)
1. the protecting tool set-up of heat exchanger tube outer wall during exchanger tubes and tubesheets Deep Hole Welding, it is characterized in that: including: to a pair Hough protection pipe being combined in outside heat exchanger tube, one end of two Hough protection pipes acts against on tube sheet, the inwall of the other end of two Hough protection pipes abuts against on heat exchanger tube, it is respectively arranged with snap-ring groove along same circumference on the outer wall of two Hough protection pipes after involutory, snap-ring groove is provided with the clip making two Hough protection pipes holdings involutory, it is provided with, on one of them Hough protection pipe, the air inlet that the source of the gas with protective gas is connected, form, between inwall and the outer wall of heat exchanger tube of two Hough protection pipes after involutory, the gap being connected with air inlet, the width in gap guarantee to be contained in the weld seam of exchanger tubes and tubesheets involutory after two Houghs protection pipes in.
The protecting tool set-up of heat exchanger tube outer wall during exchanger tubes and tubesheets Deep Hole Welding the most according to claim 1, it is characterised in that: the width in the gap formed between inwall and the outer wall of heat exchanger tube of two Hough protection pipes after involutory is 5-8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310321423.9A CN103394797B (en) | 2013-07-29 | 2013-07-29 | The protecting tool set-up of heat exchanger tube outer wall during exchanger tubes and tubesheets Deep Hole Welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310321423.9A CN103394797B (en) | 2013-07-29 | 2013-07-29 | The protecting tool set-up of heat exchanger tube outer wall during exchanger tubes and tubesheets Deep Hole Welding |
Publications (2)
| Publication Number | Publication Date |
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| CN103394797A CN103394797A (en) | 2013-11-20 |
| CN103394797B true CN103394797B (en) | 2016-08-10 |
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| CN201310321423.9A Active CN103394797B (en) | 2013-07-29 | 2013-07-29 | The protecting tool set-up of heat exchanger tube outer wall during exchanger tubes and tubesheets Deep Hole Welding |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109909590A (en) * | 2017-12-13 | 2019-06-21 | 兰州兰石重型装备股份有限公司 | The protective device and application method of back of work when tube sheet inner hole butt welding |
| 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 |
| CN108620719A (en) * | 2018-05-25 | 2018-10-09 | 江苏瑞吉格泰油气工程有限公司 | Tube-sheet Welding argon protective device |
| CN112975052B (en) * | 2021-03-04 | 2023-06-02 | 中国十九冶集团有限公司 | Tube plate welding protection device and tube plate welding method |
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| CN203418218U (en) * | 2013-07-29 | 2014-02-05 | 张家港化工机械股份有限公司 | Heat exchange tube outer wall protecting tool when deep hole welding is carried out on heat exchange tube and tube plate |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US7520538B2 (en) * | 2005-01-14 | 2009-04-21 | Mcgushion Kevin David | Orbital tube welding purge adaptor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2317042Y (en) * | 1997-12-30 | 1999-05-05 | 中国化学工程第六建设公司 | Zirconium and zircaloy pipeline welding protecting tool set-up |
| FR2882804A1 (en) * | 2005-03-01 | 2006-09-08 | Maisonneuve Soc Par Actions Si | Milk suction pipe connecting device for use in milk collection tanker, has two connecting rods for connecting support part to lever for moving support part between two positions |
| CN201895187U (en) * | 2010-11-30 | 2011-07-13 | 河北省安装工程公司 | Gas shield boot for titanium tube welding |
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| CN103394797A (en) | 2013-11-20 |
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Address after: Suzhou City, Jiangsu province Zhangjiagang 215633 gold town after Cheng Cheng Yang Road Suzhou tianwo Polytron Technologies Inc Applicant after: Suzhou Tian Wo Science and Technology Co., Ltd. Address before: Suzhou City, Jiangsu province 215633 gold town Zhangjiagang city after Cheng Cheng Yang Road Zhangjiagang chemical machinery Limited by Share Ltd Applicant before: Zhangjiagang Chamical Machinery Co., Ltd. |
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Effective date of registration: 20170831 Address after: 215632, Linjiang Road, Changshan village, Nansha Town, Zhangjiagang, Jiangsu, Suzhou 1, China Patentee after: Chang Hua machine (Suzhou) heavy equipment Co., Ltd. Address before: Suzhou City, Jiangsu province Zhangjiagang 215633 gold town after Cheng Cheng Yang Road Suzhou tianwo Polytron Technologies Inc Patentee before: Suzhou Tian Wo Science and Technology Co., Ltd. |
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