CN203712054U - Inner welding seam inert gas protector - Google Patents
Inner welding seam inert gas protector Download PDFInfo
- Publication number
- CN203712054U CN203712054U CN201420065208.7U CN201420065208U CN203712054U CN 203712054 U CN203712054 U CN 203712054U CN 201420065208 U CN201420065208 U CN 201420065208U CN 203712054 U CN203712054 U CN 203712054U
- Authority
- CN
- China
- Prior art keywords
- air inlet
- inlet pipe
- inert gas
- fixed head
- seal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The utility model discloses an inner welding seam inert gas protector. A plurality of small holes are uniformly distributed in the circumference direction of the right end part of an air inlet pipe, the left and right ends of the air inlet pipe are respectively welded with air inlet pipe joints, an air distributing pipe is formed by two sections of different-diameter stainless steel short pipes provided with small holes fully spread in the circumferential direction, the small holes are uniformly distributed in a welding seam region according to a certain angle, insert gas distributed in the welding seam region can be sufficient and uniform, the left and right ends of the air distributing pipe are respectively subjected to opening sealing through welding inner sealing element fixing plates, a sealing element and an outer sealing element fixing plate are sequentially and fixedly arranged on the outer side of the inner sealing element fixing plate, and the right end part of the air inlet pipe sequentially passes through the centers of the outer sealing element fixing plate, the sealing element and the inner sealing element fixing plate to enter the inside of the air distributing pipe. The inner welding seam inert gas protector has the advantages that in the pipeline welding process, stable and uniform insert gas can be provided for the inner wall of the welding region, and the inner wall welding seam is protected from generating welding defects; the device is portable, and the dismounting and the mounting are simple.
Description
Technical field
The utility model relates to the welding technology field of pipeline, relates in particular to a kind of inside weld inert gas shielding device.
Background technology
For DN10-DN300 fluid, carry and interconnect in welding process with stainless steel welding tube and pipe fitting at present, due to welding operation spatial limitation, all adopt outside argon arc welding welding manner.This kind of pipeline welding meeting causes the defect of inner-walls of duct welded seam area: 1, weld seam is exposed in air and very easily causes wlding oxidized, and oxide layer can cause local corrosion, causes welded pipe line seepage; 2, air is very large for molten bath impact, easily occurs pore; 3, inwall weld seam easily occurs that weld seam is inhomogeneous, easily splash, produce irregular overlap, is difficult to form fine and close, high-quality welding point; 4, the small-bore pipeline internal weld seams repairing of cannot polishing; 5, serious overlap meeting contaminated-fluid medium, even may change internal diameter of the pipeline, affects fluid and carries.
Utility model content
The utility model object is exactly in order to make up the defect of prior art, and a kind of inside weld inert gas shielding device is provided.
The utility model is achieved through the following technical solutions:
A kind of inside weld inert gas shielding device, include air inlet pipe and gas-distribution pipe, on the right end portion circumferencial direction of described air inlet pipe, be evenly equipped with a plurality of apertures, the left and right end of air inlet pipe is all welded with air inlet pipe joint, described gas-distribution pipe is that the reducing stainless steel short tube that is covered with aperture by two sections of circumferencial directions is welded, aperture is evenly distributed on welded seam area according to certain angle, the inert gas that can make to be distributed in welded seam area is abundant, evenly, a left side for gas-distribution pipe, right-hand member seals by welding inner seal liner fixed head respectively, in the outside of inner seal liner fixed head, be fixed with successively seal and outside seal fixed head, the right end portion of described air inlet pipe is successively through outside seal fixed head, the center of seal and inner seal liner fixed head enters gas-distribution pipe inside.
Described air inlet pipe is made by DN15 stainless steel short tube.
Described seal is made by 5mm silicane rubber plate, and external diameter is made certain angle and is beneficial to install and sealing.
Described outside seal fixed head, seal and inner seal liner fixed head are fixedly connected with by screw, can be according to the seal of different size pipeline apolegamy corresponding size.
Described air inlet pipe is apolegamy combined type extension pipe, single-piece length is 1000mm, combined type extension pipe be by a plurality of two ends respectively with end to end the forming of stainless steel short tube of outer silk nipple and internal thread nipple, according to field condition, select the length of air inlet pipe.
The utility model has the advantages that: the utility model is in pipeline welding process, inside weld inert gas shielding device is placed on to pipe interior, inside weld inert gas shielding device can provide stable, uniform inert gas to welding region inwall, and weld defect does not appear in protection inwall weld seam; Install light, dismounting is simple.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
The specific embodiment
As shown in Figure 1, a kind of inside weld inert gas shielding device, include air inlet pipe 1 and gas-distribution pipe 2, on the right end portion circumferencial direction of described air inlet pipe 1, be evenly equipped with a plurality of apertures 3, the left and right end of air inlet pipe 1 is all welded with air inlet pipe joint 4, described gas-distribution pipe 2 is that the reducing stainless steel short tube that is covered with aperture by two sections of circumferencial directions is welded, aperture is evenly distributed on welded seam area according to certain angle, the inert gas that can make to be distributed in welded seam area is abundant, evenly, a left side for gas-distribution pipe 2, right-hand member is respectively by 5 sealings of welding inner seal liner fixed head, in the outside of inner seal liner fixed head 5, be fixed with successively seal 6 and outside seal fixed head 7, the right end portion of described air inlet pipe 1 is successively through outside seal fixed head 7, the center of seal 6 and inner seal liner fixed head 5 enters gas-distribution pipe 2 inside.
Described air inlet pipe 1 is made by DN15 stainless steel short tube.
Described seal 6 is made by 5mm silicane rubber plate, and external diameter is made certain angle and is beneficial to install and sealing.
Described outside seal fixed head 7, seal 6 and inner seal liner fixed head 5 are fixedly connected with by screw 8, can be according to the seal of different size pipeline apolegamy corresponding size.
Described air inlet pipe 1 is apolegamy combined type extension pipe, single-piece length is 1000mm, combined type extension pipe be by a plurality of two ends respectively with end to end the forming of stainless steel short tube of outer silk nipple and internal thread nipple, according to field condition, select the length of air inlet pipe.
Claims (5)
1. an inside weld inert gas shielding device, it is characterized in that: include air inlet pipe and gas-distribution pipe, on the right end portion circumferencial direction of described air inlet pipe, be evenly equipped with a plurality of apertures, the left and right end of air inlet pipe is all welded with air inlet pipe joint, described gas-distribution pipe is that the reducing stainless steel short tube that is covered with aperture by two sections of circumferencial directions is welded, a left side for gas-distribution pipe, right-hand member seals by welding inner seal liner fixed head respectively, in the outside of inner seal liner fixed head, be fixed with successively seal and outside seal fixed head, the right end portion of described air inlet pipe is successively through outside seal fixed head, the center of seal and inner seal liner fixed head enters gas-distribution pipe inside.
2. inside weld inert gas shielding device according to claim 1, is characterized in that: described air inlet pipe is made by DN15 stainless steel short tube.
3. inside weld inert gas shielding device according to claim 1, is characterized in that: described seal is made by 5mm silicane rubber plate.
4. inside weld inert gas shielding device according to claim 1, is characterized in that: described outside seal fixed head, seal and inner seal liner fixed head are fixedly connected with by screw.
5. inside weld inert gas shielding device according to claim 1 and 2; it is characterized in that: described air inlet pipe is apolegamy combined type extension pipe; single-piece length is 1000mm, and combined type extension pipe is respectively with end to end the forming of stainless steel short tube of outer silk nipple and internal thread nipple by a plurality of two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420065208.7U CN203712054U (en) | 2014-02-13 | 2014-02-13 | Inner welding seam inert gas protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420065208.7U CN203712054U (en) | 2014-02-13 | 2014-02-13 | Inner welding seam inert gas protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203712054U true CN203712054U (en) | 2014-07-16 |
Family
ID=51151253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420065208.7U Expired - Fee Related CN203712054U (en) | 2014-02-13 | 2014-02-13 | Inner welding seam inert gas protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203712054U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103801803A (en) * | 2014-02-13 | 2014-05-21 | 安徽金威管业有限公司 | Inside weld inert gas protector |
-
2014
- 2014-02-13 CN CN201420065208.7U patent/CN203712054U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103801803A (en) * | 2014-02-13 | 2014-05-21 | 安徽金威管业有限公司 | Inside weld inert gas protector |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202411681U (en) | Butt welding device for straight pipe with small aperture | |
| CN203811016U (en) | Sealing plug | |
| CN203696209U (en) | Back gas protecting device used for sheet argon tungsten-arc welding | |
| CN203712054U (en) | Inner welding seam inert gas protector | |
| CN204314019U (en) | Hook circle movable tube sheets heat exchanger shell side structure for pressure test | |
| CN214264244U (en) | Stainless steel pipe butt welding back argon tool based on argon arc welding | |
| CN203923376U (en) | Enamel coating protection tool for enamel inner container | |
| CN103801803A (en) | Inside weld inert gas protector | |
| CN102513657A (en) | Argon arc welding method for pipe welding and auxiliary device used in method | |
| CN201922215U (en) | Welding fixture for pipe fitting | |
| CN104308479A (en) | Flange mounting process for pipe body | |
| CN204403671U (en) | A kind of repairing device of continuous in-service pipeline weld seam | |
| CN203956307U (en) | A kind of pipeline welding gas shield device | |
| CN202271106U (en) | Novel titanium metal enclosed type continuous welding device | |
| CN205270412U (en) | Water cooling ware structure of intaking | |
| CN203557031U (en) | Welding machine magnetic bar impedor capable of preventing water from being splashed to weld joints | |
| CN210475920U (en) | Argon protection tool for back of butt weld of coil pipe | |
| CN209716809U (en) | A kind of cooling tower mouthpiece convenient for welding | |
| CN202655773U (en) | Back surface argon filling device for welding of stainless steel pipe of boiler | |
| CN204711380U (en) | Austenitic stainless steel Circumferential Welds In Cylinders welding back side argon-filled protection device | |
| CN207298313U (en) | A kind of microwave material flowmeter mounting structure | |
| CN202846004U (en) | Boiler stainless steel argon arc welding protector | |
| CN202356775U (en) | Auxiliary device for welding tubes by argon arc welding | |
| CN205465036U (en) | Welded structure that submerged arc welding steel pipe sealed | |
| CN206310022U (en) | A kind of valve body, valve and water-carriage system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140716 Termination date: 20210213 |