CN203418218U - Heat exchange tube outer wall protecting tool when deep hole welding is carried out on heat exchange tube and tube plate - Google Patents
Heat exchange tube outer wall protecting tool when deep hole welding is carried out on heat exchange tube and tube plate Download PDFInfo
- Publication number
- CN203418218U CN203418218U CN201320454824.7U CN201320454824U CN203418218U CN 203418218 U CN203418218 U CN 203418218U CN 201320454824 U CN201320454824 U CN 201320454824U CN 203418218 U CN203418218 U CN 203418218U
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- hough
- tube
- heat exchanger
- heat exchange
- wall
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Abstract
The utility model discloses a heat exchange tube outer wall protecting tool when deep hole welding is carried out on a heat exchange tube and a tube plate. The heat exchange tube outer wall protecting tool when the deep hole welding is carried out on the heat exchange tube and the tube plate comprises a pair of Hough protective tubes arranged outside the heat exchange tube in a buckled mode, one end of each Hough protective tube butts against the tube plate, the inner wall of the other end of each Hough protective tube tightly butts against the heat exchange tube, clamping hoop grooves are formed in the identical circumference of the outer walls of the buckled two Hough protective tubes, a clamping hoop enabling the two Hough protective tubes to be buckled is arranged in the clamping hoop grooves, a gas inlet communicated with a gas source of protecting gas is formed in one of the Hough protective tube, a gap communicated with the gas inlet is formed between the inner wall of the buckled two Hough protective tubes and the outer wall of the heat exchange tube, and the width of the gap can ensure the fact that the welding seams of the heat exchange tube and the tube plate can be contained in the two buckled Hough protective tubes.
Description
Technical field
The protective device of heat exchanger tube outer wall when the utility model relates to for superheater heat exchanger tube and pipe sheet deep hole weldering.
Background technology
In superheater, between heat exchanger tube and tube sheet, need to carry out Deep Hole Welding.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 heat exchanger tube inwall, while preventing from welding with this, because heat exchanger tube inner wall temperature raises, causes heat exchanger tube inner wall oxide.But when heat exchanger tube inner wall temperature raises, its outside wall temperature also can correspondingly raise, and at present when Deep Hole Welding the outer wall of heat exchanger tube conventionally do not establish protective device, thereby be very easy to cause outer wall oxidation because outside wall temperature raises.
Utility model content
The purpose of this utility model is: the protecting tool set-up of heat exchanger tube outer wall while providing a kind of heat exchanger tube that can effectively prevent heat exchanger tube outer wall oxidation to weld with pipe sheet deep hole.
For achieving the above object, the technical solution adopted in the utility model 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 a pair of Hough protection tube outside 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, on the outer wall of two Hough protection tubes after involutory, along same circumference, be respectively arranged with snap-ring groove, in snap-ring groove, be provided with and make two Hough protection tubes keep involutory clip, on one of them Hough protection tube, be provided with the air inlet being connected with the source of the gas of protective gas, between the inwall of two Hough protection tubes after involutory and the outer wall of heat exchanger tube, form the gap being connected with air inlet, the width in gap guarantees the weld seam of heat exchanger tube and tube sheet to be 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 forming between the inwall of two Hough protection tubes after involutory and the outer wall of heat exchanger tube is 5-8mm.
The utility model has the advantages that: this is simple and practical; by 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; in air inlet pipe from one of them Hough protection tube, pass into protective gas; protective gas enters in the gap between two Hough protection tubes and heat exchanger tube and forms protective layer; protective layer can effectively avoid 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 be oxidized by Yin Wendu.
Accompanying drawing explanation
The use structural representation of the protecting tool set-up of heat exchanger tube outer wall when Fig. 1 is heat exchanger tube described in the utility model and pipe sheet deep hole weldering.
The specific embodiment
Below in conjunction with accompanying drawing and preferred embodiment, the utility model is described in further detail.
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 a pair of Hough protection tube outside 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, on the first Hough protection tube 1 after involutory and the outer wall of the second Hough protection tube 2, along same circumference, be respectively arranged with snap-ring groove, in snap-ring groove, be provided with and make two Hough protection tubes keep involutory clip 5, in the present embodiment, on the second Hough protection tube 2, be provided with the air inlet 7 being connected with the source of the gas of protective gas, between the inwall of two Hough protection tubes after involutory and the outer wall of heat exchanger tube 3, form the gap 8 being connected with air inlet 7, the width in gap 8 guarantees the weld seam 6 of heat exchanger tube 3 and tube sheet 4 to be 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 the one end that makes the first Hough protection tube 1 and the second Hough protection tube 2 leans on tube sheet 4, the inwall of both other ends abuts against on the outer wall of heat exchanger tube 3, thereby the weld seam 6 of heat exchanger tube 1 and tube sheet 4 is contained in the first Hough protection tube 1 and the second Hough protection tube 2 after involutory; Then clip 5 being fastened in snap-ring groove 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; when welding, can effectively avoid the outer wall of heat exchanger tube 1 to contact with air like this, thereby prevent that the outer wall Yin Wendu of heat exchanger tube 1 from raising and being oxidized.
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 a pair of Hough protection tube outside 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, on the outer wall of two Hough protection tubes after involutory, along same circumference, be respectively arranged with snap-ring groove, in snap-ring groove, be provided with and make two Hough protection tubes keep involutory clip, on one of them Hough protection tube, be provided with the air inlet being connected with the source of the gas of protective gas, between the inwall of two Hough protection tubes after involutory and the outer wall of heat exchanger tube, form the gap being connected with air inlet, the width in gap guarantees the weld seam of heat exchanger tube and tube sheet to be contained in two Hough protection tubes after involutory.
2. when heat exchanger tube according to claim 1 and pipe sheet deep hole weld, the protecting tool set-up of heat exchanger tube outer wall, is characterized in that: the width in the gap forming 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 |
|---|---|---|---|
| CN201320454824.7U CN203418218U (en) | 2013-07-29 | 2013-07-29 | Heat exchange tube outer wall protecting tool when deep hole welding is carried out on heat exchange tube and tube plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320454824.7U CN203418218U (en) | 2013-07-29 | 2013-07-29 | Heat exchange tube outer wall protecting tool when deep hole welding is carried out on heat exchange tube and tube plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203418218U true CN203418218U (en) | 2014-02-05 |
Family
ID=50017322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320454824.7U Withdrawn - After Issue CN203418218U (en) | 2013-07-29 | 2013-07-29 | Heat exchange tube outer wall protecting tool when deep hole welding is carried out on heat exchange tube and tube plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203418218U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103394797A (en) * | 2013-07-29 | 2013-11-20 | 张家港化工机械股份有限公司 | Protection tool for outer wall of heat exchange tube during heat exchange tube and tube plate deep hole 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 |
-
2013
- 2013-07-29 CN CN201320454824.7U patent/CN203418218U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103394797A (en) * | 2013-07-29 | 2013-11-20 | 张家港化工机械股份有限公司 | Protection tool for outer wall of heat exchange tube during heat exchange tube and tube plate deep hole welding |
| CN103394797B (en) * | 2013-07-29 | 2016-08-10 | 苏州天沃科技股份有限公司 | The protecting tool set-up of heat exchanger tube outer wall during exchanger tubes and tubesheets Deep Hole 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 |
| 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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SUZHOU TIANWO TECHNOLOGY CO., LTD. Free format text: FORMER NAME: ZHANGJIAGANG CHEMICAL MACHINERY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: Suzhou City, Jiangsu province 215633 gold town Zhangjiagang city after Cheng Cheng Yang Lu Patentee 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 Patentee before: Zhangjiagang Chamical Machinery Co., Ltd. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140205 Effective date of abandoning: 20160810 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |