CN214558153U - Composite pipe pipeline welding back inflation protection device - Google Patents
Composite pipe pipeline welding back inflation protection device Download PDFInfo
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- CN214558153U CN214558153U CN202023096586.6U CN202023096586U CN214558153U CN 214558153 U CN214558153 U CN 214558153U CN 202023096586 U CN202023096586 U CN 202023096586U CN 214558153 U CN214558153 U CN 214558153U
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- metal tray
- rod piece
- supporting rod
- protection device
- inert gas
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Abstract
The utility model discloses a protection device is aerifyd at composite pipe pipeline welding back, including supporting the member, the middle part of supporting the member is provided with the ring mesh screen, the one end of supporting the member is provided with the inert gas air inlet, the one end that the support member is close to the inert gas air inlet is provided with first metal tray, a side surface that first metal tray is close to the inert gas air inlet is provided with the push-and-pull frame, one side that the push-and-pull frame was kept away from to first metal tray is provided with the oxygen meter connecting hole, the outside of first metal tray is provided with first rubber slab, one side that the inert gas air inlet was kept away from to the support member is provided with second metal tray, a side surface that the ring mesh screen was kept away from to second metal tray is provided with air discharge port, the outside of second metal tray is provided with the second rubber slab. According to the composite pipe pipeline welding back inflation protection device, the air discharge holes are formed, so that inert gas is filled into the device through the stainless steel pipe, and the purpose of discharging air is achieved.
Description
Technical Field
The utility model relates to a compound pipe welding technology field of marine oil engineering corrosion resistance specifically is a compound pipe welding back inflation protection device.
Background
The composite pipe refers to a carbon steel pipe or an alloy pipe, such as API 5L X65 and a general name of a layer of corrosion-resistant medium ERNiCrMo-3 which is welded inside the carbon steel pipe or the alloy pipe, and the composite pipe is a corrosion-resistant pipeline capable of transporting strong corrosive media; in the butt-welding seam of the composite pipe, when the welding root is an internal composite layer region, in order to prevent the oxidation of the welding seam at the root, the oxygen content in the pipeline is strictly controlled, usually, inert gases such as Ar argon and He helium are filled into the pipeline to realize the butt-welding seam until the welding at the root region is completed, 3 layers of welding or the welding thickness reaches more than 6mm, and the filling of the inert gases can be stopped. The conventional method is to inflate the inside of the whole pipeline, and has the disadvantages of long inflation time, large consumption of inert gas and difficult achievement of the internal oxygen content; the method of locally filling the adhesive water-soluble paper with the inert gas is easily caused to fall off due to the influence of the surrounding environment, the adhesive water and oil stains in the pipe fitting, the inflation effect is not ideal, the oxygen content is unstable, the welding oxidation of the root part of the pipeline is easily caused, the welding quality of the back part of the pipeline is influenced, the corrosion resistance effect is influenced, and the service life is prolonged.
The prior art has the following defects or problems:
the whole-pipe inflation mode is adopted, so that the inflation time is long, the gas consumption is high, and the inflation effect is unstable;
the method of local inflation by using the adhesive water-soluble paper is easy to cause the device to fall off and fail, and the inflation effect is unstable.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to prior art's weak point, provide a protection device is aerifyd at compound pipe pipeline welding back to solve the problem that provides in the background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a protection device is aerifyd at composite pipe pipeline welding back, includes the support member, the middle part of support member is provided with the ring mesh screen, the one end of support member is provided with the inert gas air inlet, the one end that the support member is close to the inert gas air inlet is provided with first metal tray, one side surface that first metal tray is close to the inert gas air inlet is provided with the push-and-pull frame, one side that the push-and-pull frame was kept away from to first metal tray is provided with the oxygen meter connecting hole, the outside of first metal tray is provided with first rubber slab, one side that the inert gas air inlet was kept away from to the support member is provided with the second metal tray, one side surface that the ring mesh screen was kept away from to the second metal tray is provided with air escape mouth, the outside of second metal tray is provided with the second rubber slab.
As the utility model discloses an it is preferred technical scheme, be provided with the nut between support member and the first metal tray, support member passes through nut and first metal tray swing joint, be provided with the nut between support member and the second metal tray, support member passes through nut and second metal tray swing joint.
As the utility model discloses a preferred technical scheme, adopt the hollow tube of stainless steel preparation during the support member, the ring outside evenly distributed 30 holes of ring mesh screen, the support member passes through welding and ring mesh screen fixed connection.
As the utility model discloses an it is preferred technical scheme, be provided with the draw-in groove between first metal tray and the first rubber slab, first metal tray passes through joint and first rubber slab swing joint, be provided with the draw-in groove between second metal tray and the second rubber slab, second metal tray passes through joint and second rubber slab swing joint.
As the preferred technical scheme of the utility model, evenly set up three becket between push-and-pull frame and the first metal tray, the push-and-pull frame passes through becket and first metal tray swing joint.
As an optimal technical scheme of the utility model, push-and-pull frame 6 uses four stainless steel iron wires preparation, and four iron wires pass through welded fastening and connect, and wherein three iron wires are respectively through hookup and becket swing joint.
Compared with the prior art, the utility model provides a protection device is aerifyd at composite pipe pipeline welding back possesses following beneficial effect:
1. according to the composite pipe pipeline welding back inflation protection device, the air discharge port is formed, inert gas is filled into the device through the stainless steel pipe, and air in the extrusion device is discharged from the air discharge port, so that the purpose of discharging air is achieved;
2. this protection device is aerifyd at compound pipe pipeline welding back through setting up the rubber slab, and first rubber slab and second rubber slab are sealed with intraductal space, along with the air is discharged, realize that the splice is airtight and do not have the air, improve welded reliability.
Drawings
Fig. 1 is a schematic view of the main view structure of the present invention;
fig. 2 is a schematic view of the left view structure of the present invention;
fig. 3 is a schematic view of the working state structure of the present invention.
In the figure: 1. supporting the rod member; 2. a circular mesh screen; 3. an inert gas inlet; 4. a first metal tray; 5. connecting holes of an oxygen measuring instrument; 6. a push-pull frame; 7. a first rubber sheet; 8. a second metal tray; 9. an air discharge port; 10. a second rubber sheet.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, in this embodiment: the utility model provides a protection device is aerifyd at composite pipe pipeline welding back, including support rod piece 1, the middle part of support rod piece 1 is provided with ring mesh screen 2, the one end of support rod piece 1 is provided with inert gas air inlet 3, the one end that support rod piece 1 is close to inert gas air inlet 3 is provided with first metal tray 4, a side surface that first metal tray 4 is close to inert gas air inlet 3 is provided with push-and-pull frame 6, one side that push-and-pull frame 6 was kept away from to first metal tray 4 is provided with oxygen meter connecting hole 5, the outside of first metal tray 4 is provided with first rubber slab 7, one side that support rod piece 1 was kept away from inert gas air inlet 3 is provided with second metal tray 8, a side surface that ring mesh screen 2 was kept away from to second metal tray 8 is provided with air discharge port 9, the outside of second metal tray 8 is provided with second rubber slab 10.
In the embodiment, the nut is arranged between the support rod member 1 and the first metal tray 4, the support rod member 1 is movably connected with the first metal tray 4 through the nut, the nut is arranged between the support rod member 1 and the second metal tray 8, and the support rod member 1 is movably connected with the second metal tray 8 through the nut, so that the design is favorable for fixing one metal tray through a group of nuts, and the metal tray has the advantages of simple structure, excellent mechanical property, detachability and replacement, fatigue resistance and no looseness under static load; the supporting rod piece 1 is made of a stainless steel hollow pipe, so that an inert gas inlet 3 is formed, inert gas can enter the equipment, 30 holes are uniformly distributed in the outer side of the circular ring mesh screen 2, and the supporting rod piece 1 is fixedly connected with the circular ring mesh screen 2 through welding, so that the design is favorable for reducing weight and saving materials, and the supporting rod piece is suitable for working in a high-strength and high-rigidity hollow environment; a clamping groove is formed between the first metal tray 4 and the first rubber plate 7, the first metal tray 4 is movably connected with the first rubber plate 7 through clamping, a clamping groove is formed between the second metal tray 8 and the second rubber plate 10, the second metal tray 8 is movably connected with the second rubber plate 10 through clamping, the rubber plate and the metal tray can be connected tightly, and a closed space can be constructed by utilizing the smaller density, the insulativity and the flexibility of the rubber plate during working; evenly set up three becket between push-and-pull frame 6 and the first metal tray 4, be favorable to utilizing less metal accessories just can realize satisfying the mechanical structure of demand, push-and-pull frame 6 is favorable to utilizing push-and-pull frame 6 to remove the removal of whole equipment through becket and first metal tray 4 swing joint: push-and-pull frame 6 uses four stainless steel iron wires preparation, and four iron wires pass through welded fastening and connect, and wherein three iron wires are respectively through hookup and becket swing joint, and the design is favorable to three iron wires can share the pulling force effectively and make equipment can be balanced pulled when pulling equipment like this, practices thrift operator's physical power and guarantees the steady work of equipment.
The utility model discloses a theory of operation and use flow: when the device is used, after the welding assembly of the composite pipes is completed, an inflating hose is inserted into an inert gas inlet 3 of the device, a hose of an oxygen content tester is inserted into a connecting hole 5 of the oxygen content tester, the device is pushed into the position of a welding line in a pipeline by using a push-pull frame 6, a first metal tray 4 and a second metal tray 8 are respectively ensured to be positioned at two sides of the welding line, the welding line is approximately positioned in the middle of the device, a first rubber plate 7 and a second rubber plate 10 are tightly attached to the inner wall of the pipeline, inert gas enters the pipeline through a circular ring 2 on a support rod member 1, air in a closed mesh screen area is discharged from an air discharge port 9, the oxygen content in the closed area is measured by the oxygen content tester, and the welding can be carried out after relevant regulations are reached.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a protection device is aerifyd at compound pipe pipeline welding back which characterized in that: the oxygen measuring device comprises a supporting rod piece (1), wherein a circular mesh screen (2) is arranged in the middle of the supporting rod piece (1), an inert gas inlet (3) is arranged at one end of the supporting rod piece (1), a first metal tray (4) is arranged at one end, close to the inert gas inlet (3), of the supporting rod piece (1), a push-pull frame (6) is arranged on one side surface, close to the inert gas inlet (3), of the first metal tray (4), an oxygen measuring instrument connecting hole (5) is arranged on one side, far away from the push-pull frame (6), of the first metal tray (4), a first rubber plate (7) is arranged outside the first metal tray (4), a second metal tray (8) is arranged on one side, far away from the inert gas inlet (3), of the supporting rod piece (1), and an air discharge hole (9) is arranged on one side surface, far away from the circular mesh screen (2), of the second metal tray (8), and a second rubber plate (10) is arranged outside the second metal tray (8).
2. The composite pipe pipeline welding backside inflation protection device of claim 1, wherein: the supporting rod piece is characterized in that a nut is arranged between the supporting rod piece (1) and the first metal tray (4), the supporting rod piece (1) is movably connected with the first metal tray (4) through the nut, a nut is arranged between the supporting rod piece (1) and the second metal tray (8), and the supporting rod piece (1) is movably connected with the second metal tray (8) through the nut.
3. The composite pipe pipeline welding backside inflation protection device of claim 1, wherein: the supporting rod piece (1) is a hollow tube made of stainless steel, 30 holes are uniformly distributed in the outer side of the circular ring mesh screen (2), and the supporting rod piece (1) is fixedly connected with the circular ring mesh screen (2) through welding.
4. The composite pipe pipeline welding backside inflation protection device of claim 1, wherein: be provided with the draw-in groove between first metal tray (4) and first rubber slab (7), first metal tray (4) are through joint and first rubber slab (7) swing joint, be provided with the draw-in groove between second metal tray (8) and second rubber slab (10), second metal tray (8) are through joint and second rubber slab (10) swing joint.
5. The composite pipe pipeline welding backside inflation protection device of claim 1, wherein: three metal rings are uniformly arranged between the push-pull frame (6) and the first metal tray (4), and the push-pull frame (6) is movably connected with the first metal tray (4) through the metal rings.
6. The composite pipe pipeline welding backside inflation protection device of claim 1, wherein: the push-pull frame (6) is made of four stainless steel iron wires, the four iron wires are fixedly connected through welding, and the three iron wires are movably connected with the metal ring through hooking respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023096586.6U CN214558153U (en) | 2020-12-21 | 2020-12-21 | Composite pipe pipeline welding back inflation protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023096586.6U CN214558153U (en) | 2020-12-21 | 2020-12-21 | Composite pipe pipeline welding back inflation protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214558153U true CN214558153U (en) | 2021-11-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023096586.6U Active CN214558153U (en) | 2020-12-21 | 2020-12-21 | Composite pipe pipeline welding back inflation protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214558153U (en) |
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2020
- 2020-12-21 CN CN202023096586.6U patent/CN214558153U/en active Active
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