CN215698730U - Novel pipe welding argon gas back protection device - Google Patents
Novel pipe welding argon gas back protection device Download PDFInfo
- Publication number
- CN215698730U CN215698730U CN202122144318.5U CN202122144318U CN215698730U CN 215698730 U CN215698730 U CN 215698730U CN 202122144318 U CN202122144318 U CN 202122144318U CN 215698730 U CN215698730 U CN 215698730U
- Authority
- CN
- China
- Prior art keywords
- link
- argon
- pipe
- argon gas
- protection device
- 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.)
- Active
Links
Images
Abstract
The utility model discloses a novel pipe welding argon back protection device which comprises a connecting frame with a hollow interior, wherein a breathable porous filling material is filled in the cavity of the connecting frame, an argon pipe penetrates through the connecting frame and is connected with the connecting frame in a sealing mode, the argon pipe is communicated with the cavity of the connecting frame, an annular supporting frame is arranged on the connecting frame, the cross section of the supporting frame is U-shaped, a plurality of channels are arranged on the horizontal section of the supporting frame in a circumferential mode, the channels penetrate through the horizontal section of the supporting frame and are communicated with the interior of the connecting frame, the opening end of the supporting frame faces to one side far away from the connecting frame, annular rubber tires are fixed on two vertical sections of the supporting frame, and air inflation nozzles of the annular rubber tires are connected with air pipes. The utility model can shorten the argon filling time and reduce the argon filling amount.
Description
Technical Field
The utility model relates to the technical field of welding protection devices, in particular to a novel argon back protection device for pipe welding.
Background
In the desulfurization project, the most critical spraying layer equipment in the absorption tower gradually adopts stainless steel pipes, and the excellent corrosion resistance of the stainless steel pipes increases the strength and the service life of the spraying layer, and is gradually favored by owners.
At present, the sizes of the pipelines of the spraying layer are mainly concentrated in DN 50-DN 400, and the welding requires single-side welding and double-side forming. When stainless steel is welded, extra gas protection is needed to be provided for the reverse side so as to obtain good welding forming and corrosion resistance. According to the size of the current pipeline, only whole pipe argon filling and local argon filling of a welding part can be adopted. For the pipeline with the pipe diameter larger than DN150, the whole pipe is filled with argon with larger filling quantity, the argon filling time is longer, and a large amount of argon is wasted. In addition, when argon is filled, the optimal flow of argon is not easy to control, argon turbulence at a welding position is easy to cause, air enters, welding air holes are formed, and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide a novel argon back protection device for pipe welding.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a novel pipe welding argon gas back protection device, including inside hollow link, the argon gas pipe has penetrated in the link, argon gas pipe and link sealing connection, the inside cavity intercommunication of argon gas pipe and link, be equipped with annular support frame on the link, the cross-section of support frame is "U" shape, be equipped with a plurality of passageway on the horizontal segment of support frame (hoop a week), the passageway runs through the horizontal segment of support frame and communicates with the inside of link, the open end of support frame sets up towards one side of keeping away from the link, be fixed with annular rubber child on two vertical sections of support frame, the charging connector department of annular rubber child is connected with the air hose.
The one end of argon pipe stretches into in the link and with the left inner wall welding of link, the right side wall that the link was passed outside the other end of argon pipe extended to the link, the right side wall welding of argon pipe and link, a plurality of air vent has been seted up to the part that the argon pipe stretched into the link.
The air pipe is of a Y-shaped structure, and two branched ends of the air pipe are respectively connected with the inflating nozzles of the two annular rubber tires.
The connecting frame is internally provided with a breathable porous filling material.
An arc-shaped frame is arranged on the vertical section of the supporting frame, the section of the arc-shaped frame is U-shaped, and the annular rubber tire is clamped into the arc-shaped frame for fixation.
The distance between the two annular rubber tires is at least 300 mm.
The channels are distributed annularly and uniformly relative to the center of the supporting frame
The utility model has the beneficial effects that: send into the pipeline with this device in, aerify annular rubber child, it is sealed through annular rubber child in the regional scope of welding seam, form a less annular protection zone, let in protective gas in the argon gas pipe, protective gas lasts gently gets into the protection zone, forms and lasts the back guard action.
Drawings
FIG. 1 is a schematic structural view of the present invention;
in the figure: the device comprises an annular rubber tire 1, a support frame 2, an arc-shaped frame 21, a channel 22, a filling material 3, an argon pipe 4, a vent hole 41, an air pipe 5, a pipeline 6, a welding part 61 and a connecting frame 7.
Detailed Description
The utility model is further described with reference to the accompanying drawings and the detailed description below:
as shown in fig. 1, a novel tube welding argon gas back protection device comprises a connecting frame 7 with a hollow interior, an argon gas tube 4 penetrates into the connecting frame 7, one end of the argon gas tube 4 extends into the connecting frame 7 and is welded with the inner wall of the left side of the connecting frame 7, the other end of the argon gas tube 4 extends out of the connecting frame 7 and passes through the right side wall of the connecting frame 7, the argon gas tube 4 is welded with the right side wall of the connecting frame 7, a plurality of vent holes 41 are formed in the part of the argon gas tube 4 extending into the connecting frame 7, the vent holes 41 are uniformly distributed around the argon gas tube 4, a protection gas, preferably argon gas, is introduced into the argon gas tube 4 through the vent holes 41, the connecting frame 7 is internally provided with a breathable porous filling material 3, when the argon gas passes through the breathable porous filling material 3, the gas flow rate is slowed, the generation of turbulence phenomenon is avoided, and the welding defect caused by the turbulence of the argon gas flow is also solved, meanwhile, the device increases the application range of argon flow;
the connecting frame 7 is provided with an annular supporting frame 2, the cross section of the supporting frame 2 is U-shaped, the horizontal section of the supporting frame 2 is provided with a plurality of channels 22, the channels 22 penetrate through the horizontal section of the supporting frame 2 and are communicated with the inside of the connecting frame 7, the opening end of the supporting frame 2 faces to one side far away from the connecting frame 7, annular rubber tires 1 are fixed on two vertical sections of the supporting frame 2, the annular rubber tires 1 are similar to bicycle inner tires, and air tubes 5 are connected to the inflating nozzles of the annular rubber tires 1; when the device is used, the device is firstly sent into a pipeline 6, the joint of the two pipelines 6 is a welding part 61, the two annular rubber tires 1 are moved to the left side and the right side of the welding part 61, an air pipe 5 is opened, the annular rubber tires 1 are inflated, the inflated annular rubber tires 1 are tightly attached to the inner wall of the pipeline 6, the device is fixed in the range of a welding area, a protection area is formed among a support frame 2, the annular rubber tires 1 and the pipelines, argon is introduced from an argon pipe 4, penetrates through a breathable porous filling material 3 and a channel 22 and then is introduced into the protection area, the two pipelines 6 are not welded at the moment, a gap exists between the two pipelines 6, air is led out from the gap, an argon protection area is formed after the argon fills the whole protection area, the welding of the pipelines 6 is started, and the back of the welding part 61 is continuously protected by the argon during welding, the structure ensures that the required argon is less when the pipeline is welded, and simultaneously, the argon filling time is shortened, and the welding efficiency is improved.
Be equipped with arc frame 21 on the vertical section of support frame 2, the cross-section of arc frame 21 is "U" shape, and annular rubber child 1 card is gone into arc frame 21 internal fixation, and it is fixed preferably glue for annular rubber child 1's is fixed more reliably.
The distance between two annular rubber child 1 is 300mm at least, avoids welding high temperature to damage the rubber child.
The channels 22 are circumferentially and uniformly distributed relative to the center of the support frame 2, so that argon gas can be rapidly led out to a protection area.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. The utility model provides a novel pipe welding argon gas back protection device which characterized in that: including inside hollow link (7), it has argon gas pipe (4) to penetrate in link (7), argon gas pipe (4) and link (7) sealing connection, the inside cavity intercommunication of argon gas pipe (4) and link (7), be equipped with annular support frame (2) on link (7), the cross-section of support frame (2) is "U" shape, be equipped with a plurality of passageway (22) on the horizontal segment of support frame (2), passageway (22) run through the horizontal segment of support frame (2) and communicate with the inside of link (7), the open end of support frame (2) is towards the one side setting of keeping away from link (7), be fixed with annular rubber child (1) on two vertical segments of support frame (2), the inflation nozzle department of annular rubber child (1) is connected with air hose (5).
2. The novel argon back protection device for pipe welding as claimed in claim 1, wherein: the one end of argon gas pipe (4) stretch into in link (7) and with the left inner wall welding of link (7), the other end of argon gas pipe (4) extends to link (7) outside and pass the right side wall of link (7), the right side wall welding of argon gas pipe (4) and link (7), a plurality of air vent (41) have been seted up to the part that argon gas pipe (4) stretch into link (7).
3. The novel argon back protection device for pipe welding as claimed in claim 1, wherein: the air pipe (5) is of a Y-shaped structure, and two forked ends of the air pipe (5) are respectively connected with the inflating nozzles of the two annular rubber tires (1).
4. The novel argon back protection device for pipe welding as claimed in claim 1, wherein: the connecting frame (7) is internally provided with a breathable porous filling material (3).
5. The novel argon back protection device for pipe welding as claimed in claim 1, wherein: be equipped with arc frame (21) on the vertical section of support frame (2), the cross-section of arc frame (21) is "U" shape, annular rubber child (1) card is gone into arc frame (21) internal fixation.
6. The novel argon back protection device for pipe welding as claimed in claim 1, wherein: the distance between the two annular rubber tires (1) is at least 300 mm.
7. The novel argon back protection device for pipe welding as claimed in claim 1, wherein: the channels (22) are circumferentially and evenly distributed relative to the center of the support frame (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122144318.5U CN215698730U (en) | 2021-09-07 | 2021-09-07 | Novel pipe welding argon gas back protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122144318.5U CN215698730U (en) | 2021-09-07 | 2021-09-07 | Novel pipe welding argon gas back protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215698730U true CN215698730U (en) | 2022-02-01 |
Family
ID=80015650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122144318.5U Active CN215698730U (en) | 2021-09-07 | 2021-09-07 | Novel pipe welding argon gas back protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215698730U (en) |
-
2021
- 2021-09-07 CN CN202122144318.5U patent/CN215698730U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210549035U (en) | Plugging device for pipeline welding | |
| CN106944776A (en) | A kind of plugging device for welded pipe line internal protection gas | |
| CN111299767A (en) | Internal filling type argon filling welding device and welding method for butt welding of pipelines | |
| CN215698730U (en) | Novel pipe welding argon gas back protection device | |
| CN109693059B (en) | Pipeline welding back inflation protection device | |
| CN201275661Y (en) | In-tube inflating and packing apparatus | |
| CN110560855A (en) | Argon filling back protection system for automatic pipeline welding | |
| CN213470043U (en) | Back aerating device for pipeline welding | |
| CN210548767U (en) | Special pipe welding back argon filling protection device | |
| CN203918189U (en) | A kind of sealed welding equipment | |
| CN211135868U (en) | Pipeline welding back protective gas inflation device and equipment | |
| CN104708186A (en) | Gas storage device for pipeline welding and pipeline welding method | |
| CN210188792U (en) | Gas protection device for pipeline welding | |
| CN208304209U (en) | A kind of medium-large caliber stainless steel tube back side argon-filling device | |
| CN109807516A (en) | A kind of continuous welded pipe line back protection device of multistage | |
| CN204975638U (en) | A solar term device that be used for pipeline aerify protection weld | |
| CN102156028B (en) | Sealing device for detecting inner container sealing performance of solar water heater | |
| CN111734959B (en) | Biogas conveying leakage early warning method | |
| CN112705827A (en) | Stainless steel pipeline welding argon filling device and method | |
| CN210254767U (en) | Large-caliber stainless steel local inflation device | |
| CN220217044U (en) | Argon filling device for pipeline welding | |
| CN107355544B (en) | Be used for stainless steel pipeline welded inflatable seal device | |
| CN110560854A (en) | Pipeline circumference segmentation back argon filling protection mechanism | |
| CN206159493U (en) | Air cock welding formula inflatable seal area | |
| CN202041004U (en) | Sealing device for tightness detection of inner container of solar water heater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |