CN203418217U - Heat exchange tube inner wall protecting tool when argon arc welding is carried out on heat exchange tube and tube plate - Google Patents

Heat exchange tube inner wall protecting tool when argon arc welding is carried out on heat exchange tube and tube plate Download PDF

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Publication number
CN203418217U
CN203418217U CN201320454784.6U CN201320454784U CN203418217U CN 203418217 U CN203418217 U CN 203418217U CN 201320454784 U CN201320454784 U CN 201320454784U CN 203418217 U CN203418217 U CN 203418217U
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CN
China
Prior art keywords
heat exchange
exchange tube
heat exchanger
tube
exchanger tube
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Active
Application number
CN201320454784.6U
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Chinese (zh)
Inventor
朱海卫
张菊平
王萍
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chang Hua machine (Suzhou) heavy equipment Co., Ltd.
Original Assignee
ZHANGJIAGANG CHAMICAL MACHINERY CO Ltd
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Publication date
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Priority to CN201320454784.6U priority Critical patent/CN203418217U/en
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Publication of CN203418217U publication Critical patent/CN203418217U/en
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Abstract

The utility model discloses a heat exchange tube inner wall protecting tool when argon arc welding is carried out on a heat exchange tube and a tube plate. The heat exchange tube inner wall protecting tool when the argon arc welding is carried out on the heat exchange tube and the tube plate comprises a protecting component, wherein the outer wall of the protecting component is attached to the inner wall of the heat exchange tube. A main channel is formed in the protecting component, branch channels diverged to the two sides are connected to the inner end of the main channel, the outer ends of the two branch channels are respectively connected with a groove concaved inwards in the outer wall of the protecting component, the groove and the inner wall of the heat exchange tube form a cavity containing protecting gas, and a gas inlet communicated with a gas source of the protecting gas is formed in the outer end of the main channel. The heat exchange tube inner wall protecting tool when the argon arc welding is carried out on the heat exchange tube and the tube plate has the advantages that the structure is simple and practical, the protecting gas is injected into the cavity formed by the groove in the protecting component and the inner wall of the heat exchange tube, so that the inner wall of the heat exchange tube cannot make contact with air in welding, and thus the inner wall, corresponding to the welding point, of the heat exchange tube will not be oxidized due to the rise of temperature.

Description

The protecting tool set-up of heat exchanger tube inwall when heat exchanger tube and tube sheet argon arc welding
Technical field
The protective device of heat exchanger tube inwall when the utility model 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 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 the heat exchanger tube inner wall oxide that weld is corresponding.In use, once 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 titanium heat exchanger, therefore when heat exchanger tube and Tube-sheet Welding, just need to stop the oxidation of heat exchanger tube inwall.
Utility model content
The purpose of this utility model is: the protecting tool set-up of heat exchanger tube inwall when a kind of heat exchanger tube that can effectively prevent heat exchanger tube inner wall oxide and tube sheet argon arc welding are provided.
For achieving the above object; the technical solution adopted in the utility model 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; in protection module, be provided with main channel; the inner of main channel is connected with the subchannel diverging to both sides; article two, the outer end of subchannel is connected with inside recessed groove on 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 being 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.
The utility model has the advantages that: this is simple and practical; in the cavity forming to the inwall of the groove by protection module and heat exchanger tube, pass into protective gas; thereby the inwall of heat exchanger tube does not contact with air while making to weld, the inwall of the heat exchanger tube that weld is corresponding so just can not be oxidized because temperature raises.
Accompanying drawing explanation
The structural representation of the protecting tool set-up of heat exchanger tube inwall when Fig. 1 is heat exchanger tube described in the utility model and tube sheet argon arc welding.
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 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; in protection module 2, be provided with main channel 3; the inner of main channel 3 is connected with the subchannel 4 diverging 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 being 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, from air inlet 6, pass into protective gas, 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, the inwall of the heat exchanger tube 1 that weld is corresponding so just can not be oxidized because temperature raises.

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; in protection module, be provided with main channel; the inner of main channel is connected with the subchannel diverging to both sides; article two, the outer end of subchannel is connected with inside recessed groove on 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 being 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, is characterized in that: the described groove inwardly recessed degree of depth is 3~5mm.
CN201320454784.6U 2013-07-29 2013-07-29 Heat exchange tube inner wall protecting tool when argon arc welding is carried out on heat exchange tube and tube plate Active CN203418217U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320454784.6U CN203418217U (en) 2013-07-29 2013-07-29 Heat exchange tube inner wall protecting tool when argon arc welding is carried out on heat exchange tube and tube plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320454784.6U CN203418217U (en) 2013-07-29 2013-07-29 Heat exchange tube inner wall protecting tool when argon arc welding is carried out on heat exchange tube and tube plate

Publications (1)

Publication Number Publication Date
CN203418217U true CN203418217U (en) 2014-02-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320454784.6U Active CN203418217U (en) 2013-07-29 2013-07-29 Heat exchange tube inner wall protecting tool when argon arc welding is carried out on heat exchange tube and tube plate

Country Status (1)

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CN (1) CN203418217U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103386540A (en) * 2013-07-29 2013-11-13 张家港化工机械股份有限公司 Protection tooling for inner wall of heat exchange pipe during argon arc welding of heat exchange pipe and pipe plate
CN103817415A (en) * 2014-02-26 2014-05-28 睿能(沈阳)热泵技术有限公司 Welding method for titanium tube with ultra-thin wall

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103386540A (en) * 2013-07-29 2013-11-13 张家港化工机械股份有限公司 Protection tooling for inner wall of heat exchange pipe during argon arc welding of heat exchange pipe and pipe plate
CN103817415A (en) * 2014-02-26 2014-05-28 睿能(沈阳)热泵技术有限公司 Welding method for titanium tube with ultra-thin wall
CN103817415B (en) * 2014-02-26 2015-11-25 睿能(沈阳)热泵技术有限公司 A kind of welding method of titanium ultra-thin tube

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
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.

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.

TR01 Transfer of patent right

Effective date of registration: 20170829

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 215633 gold town Zhangjiagang city after Cheng Cheng Yang Lu

Patentee before: Suzhou Tian Wo Science and Technology Co., Ltd.

TR01 Transfer of patent right