CN103394797A - Protection tool for outer wall of heat exchange tube during heat exchange tube and tube plate deep hole welding - Google Patents
Protection tool for outer wall of heat exchange tube during heat exchange tube and tube plate deep hole welding Download PDFInfo
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- CN103394797A CN103394797A CN2013103214239A CN201310321423A CN103394797A CN 103394797 A CN103394797 A CN 103394797A CN 2013103214239 A CN2013103214239 A CN 2013103214239A CN 201310321423 A CN201310321423 A CN 201310321423A CN 103394797 A CN103394797 A CN 103394797A
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- tube
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- heat exchange
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Abstract
The invention discloses a protection tool for the outer wall of a heat exchange tube during heat exchange tube and tube plate deep hole welding. The protection tool effective in preventing oxidation of the outer wall of the heat exchange tube comprises a pair of half protective tubes oppositely fitted outside the heat exchange tube. One end of every half protective tube is abutted to a tube plate. The inner wall of the other end of every half protective tube is abutted to the heat exchange tube. The outer walls of the two half protective tubes oppositely fitted are provided with hook grooves along the same periphery. A hoop keeping the two half protective tubes to oppositely fit is disposed in the hoop grooves. One half protective tube is provided with a gas inlet communicated with a protective gas source. A gap communicated with the gas inlet forms between the outer wall of the heat exchange tube and the inner walls of the two half protective tubes oppositely fitted. The gap is so wide that a weld between the heat exchange tube and the tube plate can be accommodated in the two half protective tubes oppositely fitted.
Description
Technical field
The protective device of heat exchanger tube outer wall while the present invention relates to for superheater heat exchanger tube and pipe sheet deep hole weldering.
Background technology
Need to carry out Deep Hole Welding in superheater between heat exchanger tube and tube sheet.During Deep Hole Welding, welding gun stretches in heat exchanger tube and carries out welding operation, and the argon gas in welding gun can form protective layer in the heat exchanger tube inwall, causes the heat exchanger tube inner wall oxide because the heat exchanger tube inner wall temperature raises while with this, preventing from welding.But when the heat exchanger tube inner wall temperature raise, its outside wall temperature also can correspondingly raise, and at present when Deep Hole Welding the outer wall of heat exchanger tube usually do not establish protective device, thereby be very easy to cause the outer wall oxidation because outside wall temperature raises.
Summary of the invention
The objective of the invention is: the protecting tool set-up of heat exchanger tube outer wall when a kind of heat exchanger tube that can effectively prevent the oxidation of heat exchanger tube outer wall and pipe sheet deep hole weldering 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 outer wall when heat exchanger tube and pipe sheet deep hole weldering, comprise: to being combined in the outer a pair of Hough protection tube of heat exchanger tube, one end of two Hough protection tubes leans on tube sheet, the inwall of the other end of two Hough protection tubes abuts against on heat exchanger tube, be respectively arranged with snap-ring groove along same circumference on the outer wall of two Hough protection tubes after involutory, be provided with in snap-ring groove and make two Hough protection tubes keep involutory clip, be provided with the air inlet that is connected with the source of the gas of protective gas on one of them Hough protection tube, form the gap that is connected with air inlet between the inwall of two Hough protection tubes after involutory and the outer wall of heat exchanger tube, the width in gap guarantees the weld seam of heat exchanger tube and tube sheet is contained in two Hough protection tubes after involutory.
Further, the protecting tool set-up of heat exchanger tube outer wall during the weldering of aforesaid heat exchanger tube and pipe sheet deep hole, wherein, the width in the gap that forms between the inwall of two Hough protection tubes after involutory and the outer wall of heat exchanger tube is 5-8mm.
Advantage of the present invention is: this is simple and practical; with two Hough protection tubes to being combined in outside heat exchanger tube; and the weld seam that makes heat exchanger tube and tube sheet is contained in two Hough protection tubes after involutory; pass into protective gas air inlet pipe from one of them Hough protection tube; protective gas enters in gap between two Hough protection tubes and heat exchanger tube and forms protective layer; protective layer can effectively avoid the heat exchanger tube outer wall to contact with air; thereby while making Deep Hole Welding, the outer wall of heat exchanger tube can not raise and oxidation occurs by Yin Wendu.
Description of drawings
The use structural representation of the protecting tool set-up of heat exchanger tube outer wall when Fig. 1 is heat exchanger tube of the present invention and pipe sheet deep hole weldering.
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 outer wall when heat exchanger tube and pipe sheet deep hole weldering, comprise: to being combined in the outer a pair of Hough protection tube of heat exchanger tube 3, be respectively the first Hough protection tube 1 and the second Hough protection tube 2, one end of the first Hough protection tube 1 and the second Hough protection tube 2 leans on tube sheet 4, the inwall of the other end of the first Hough protection tube 1 and the second Hough protection tube 2 abuts against on the outer wall of heat exchanger tube 3, be respectively arranged with snap-ring groove along same circumference on the first Hough protection tube 1 after involutory and the outer wall of the second Hough protection tube 2, be provided with in snap-ring groove and make two Hough protection tubes keep involutory clip 5, be provided with the air inlet 7 that is connected with the source of the gas of protective gas in the present embodiment on the second Hough protection tube 2, form the gap 8 that is connected with air inlet 7 between the inwall of two Hough protection tubes after involutory and the outer wall of heat exchanger tube 3, the width in gap 8 guarantees the weld seam 6 of heat exchanger tube 3 and tube sheet 4 is contained in two Hough protection tubes after involutory, the width in general gap 8 is 5-8mm.
Operation principle is as follows: when heat exchanger tube 1 carries out Deep Hole Welding with tube sheet 4, the first Hough protection tube 1 and 2 pairs of the second Hough protection tubes are combined in outside heat exchanger tube 3, and an end of the first Hough protection tube 1 and the second Hough protection tube 2 is leaned on tube sheet 4, the inwall of both other ends abuts against on the outer wall of heat exchanger tube 3, thereby makes the weld seam 6 of heat exchanger tube 1 and tube sheet 4 be contained in the first Hough protection tube 1 and the second Hough protection tube 2 after involutory; Then clip 5 is fastened in snap-ring groove and makes two Hough protection tubes keep involutory; The source of the gas of protective gas is to the protective gas that passes into similar argon gas and so in air inlet 7; protective gas enters in the inwall of two Hough protection tubes and the gap 8 between heat exchanger tube 3 and forms protective layer; can effectively avoid the outer wall of heat exchanger tube 1 to contact with air when welding like this, thereby prevent that the outer wall Yin Wendu of heat exchanger tube 1 from raising and oxidation occurs.
Claims (2)
1. the protecting tool set-up of heat exchanger tube outer wall when heat exchanger tube and pipe sheet deep hole weld, it is characterized in that: comprising: to being combined in the outer a pair of Hough protection tube of heat exchanger tube, one end of two Hough protection tubes leans on tube sheet, the inwall of the other end of two Hough protection tubes abuts against on heat exchanger tube, be respectively arranged with snap-ring groove along same circumference on the outer wall of two Hough protection tubes after involutory, be provided with in snap-ring groove and make two Hough protection tubes keep involutory clip, be provided with the air inlet that is connected with the source of the gas of protective gas on one of them Hough protection tube, form the gap that is connected with air inlet between the inwall of two Hough protection tubes after involutory and the outer wall of heat exchanger tube, the width in gap guarantees the weld seam of heat exchanger tube and tube sheet is contained in two Hough protection tubes after involutory.
2. the protecting tool set-up of heat exchanger tube outer wall when heat exchanger tube according to claim 1 and pipe sheet deep hole weld, it is characterized in that: the width in the gap that forms between the inwall of two Hough protection tubes after involutory and the outer wall of heat exchanger tube 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 |
|---|---|
| CN103394797A true CN103394797A (en) | 2013-11-20 |
| CN103394797B CN103394797B (en) | 2016-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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 |
Country Status (1)
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| CN (1) | CN103394797B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| CN112975052A (en) * | 2021-03-04 | 2021-06-18 | 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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| 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 |
| US20060157535A1 (en) * | 2005-01-14 | 2006-07-20 | Mcgushion Kevin D | Orbital tube welding purge adaptor |
| 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 |
| CN202336674U (en) * | 2011-11-03 | 2012-07-18 | 中国石油天然气股份有限公司 | Welding protective device for circumferential seams of nonferrous metal devices and pipelines |
| CN202427681U (en) * | 2012-01-10 | 2012-09-12 | 宁波宝洲消防科技有限公司 | Welded seam protection device of stainless steel pipe fitting |
| CN102909465A (en) * | 2012-10-24 | 2013-02-06 | 天津大学 | Titanium tube welding gas protection cover of fixed welding gun |
| 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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2013
- 2013-07-29 CN CN201310321423.9A patent/CN103394797B/en active Active
Patent Citations (8)
| 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 |
| US20060157535A1 (en) * | 2005-01-14 | 2006-07-20 | Mcgushion Kevin D | Orbital tube welding purge adaptor |
| 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 |
| CN202336674U (en) * | 2011-11-03 | 2012-07-18 | 中国石油天然气股份有限公司 | Welding protective device for circumferential seams of nonferrous metal devices and pipelines |
| CN202427681U (en) * | 2012-01-10 | 2012-09-12 | 宁波宝洲消防科技有限公司 | Welded seam protection device of stainless steel pipe fitting |
| CN102909465A (en) * | 2012-10-24 | 2013-02-06 | 天津大学 | Titanium tube welding gas protection cover of fixed welding gun |
| 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 |
Cited By (5)
| 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 |
| CN112975052A (en) * | 2021-03-04 | 2021-06-18 | 中国十九冶集团有限公司 | Tube plate welding protection device and tube plate welding method |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103394797B (en) | 2016-08-10 |
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| CB02 | Change of applicant information |
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. |