CN211556164U - Welding grounding device for submarine pipe - Google Patents
Welding grounding device for submarine pipe Download PDFInfo
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- CN211556164U CN211556164U CN201922141669.3U CN201922141669U CN211556164U CN 211556164 U CN211556164 U CN 211556164U CN 201922141669 U CN201922141669 U CN 201922141669U CN 211556164 U CN211556164 U CN 211556164U
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- connecting plate
- wire connecting
- grounding
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Abstract
The utility model discloses a sea pipe welding earthing device, include: the device comprises a support rod, a ground wire connecting plate and a clamping plate, wherein the clamping plate is of a square structure with an opening at the outer end and is provided with a sea pipe fixing screw, and a copper welding layer is arranged on the inner wall of the square structure of the clamping plate. And a combined shaft is arranged at one end of the support rod connected with the ground wire connecting plate, and the shaft body of the combined shaft is fixedly connected with the ground wire connecting plate through a shaft sleeve. And a copper welding seam is arranged between the copper sleeve and the grounding wire connecting plate. The combined shaft is provided with a short section with the same diameter as the support rod, and a steel welding seam is arranged between the short section and the support rod for connection. The utility model has the advantages that: the copper alloy has rigidity and good conductivity, and is lower in cost than all copper; in the actual operation, the method is simple, convenient, quick and safe.
Description
Technical Field
The utility model belongs to metal pipe fitting welding field especially relates to a submarine pipeline welding earthing device.
Background
The sea pipe is generally a double-layer pipe, when welding between pipes, two sea pipe inner pipes and inner pipes, and two sea pipe outer pipes need to be welded, because there is insulation between the inner pipe and the outer pipe, and the outer pipe also has a layer of insulation, and a loop needs to be formed during welding, so perfect grounding performance needs to be guaranteed during pipeline welding.
Because the existing welding grounding device is generally a steel structure and has poor electric conductivity, and the copper material with good electric conductivity has the defects of high cost, easy heat generation and deformation, lack of a supporting rod, inapplicability to welding of the inner pipe of the submarine pipe and the like.
Disclosure of Invention
In view of the above-mentioned shortcomings, the present invention provides a welding and grounding device for a sea pipe in copper-clad steel process, which does not affect the conductivity and has low cost.
In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a sea pipe welding earthing device which characterized by: the novel marine pipe clamping device comprises a supporting rod, a grounding wire connecting plate and a clamping plate, wherein one end of the supporting rod is connected with the grounding wire connecting plate, the other end of the supporting rod is connected with the clamping plate, the clamping plate is of a square structure provided with a clamping marine pipe opening, and a copper welding layer is arranged on the inner wall of the square structure of the clamping plate.
And a combined shaft is arranged at one end of the support rod connected with the ground wire connecting plate, and the shaft body of the combined shaft is fixedly connected with the ground wire connecting plate through a shaft sleeve.
And a copper welding seam is arranged between the copper sleeve and the grounding wire connecting plate.
The combined shaft is provided with a short section with the same diameter as the support rod, and a steel welding seam is arranged between the short section and the support rod for connection.
And a copper cover plate is arranged at the end part of the combined shaft body to block the axial play of the copper sleeve.
The thickness of the brazing layer is 2-5 mm.
And the ground wire connecting plate is provided with a wire hole.
And both sides of the plate with the wire holes are provided with copper welding layers.
The square structure is provided with an opening on the side surface, and the bottom of the square structure is provided with a fastening bolt.
The length of the lower clamping edge of the square structure is smaller than that of the upper clamping edge, and the fastening bolt is arranged at the head of the lower clamping edge and is fastened through the fastening nut.
The utility model has the advantages that: the clamping component is made of steel materials, the steel is coated on the part, which is in contact with the steel pipe, of the copper, and the copper is coated on the steel grounding wire connecting plate, so that the rigidity and the good conductivity are ensured, and the cost is lower than that of the whole copper; in the actual operation, the method is simple, convenient, quick and safe.
Drawings
Fig. 1 is a schematic structural view of the welding and grounding device for the submarine pipe of the present invention.
In the figure:
1. supporting rod 2, combined shaft 3 and copper sleeve
4. Copper cover plate 5, bolt 6 and grounding wire connecting plate
7. Clamping plate 8, fastening bolt 9 and fastening nut
Detailed Description
The structure of the welding and grounding device for the submarine pipe according to the present invention will be described with reference to the accompanying drawings.
As shown in figure 1, the welding and grounding device for the marine pipe comprises a supporting rod 1, a combined shaft 2, a copper sleeve 3, a copper cover plate 4, a bolt 5, a grounding wire connecting plate 6, a fastening bolt 7 and a clamping plate 8, wherein the device is clamped at the outer end part of a pipeline on one side, and a grounding wire penetrates through the grounding wire connecting plate and is connected with the ground. The supporting rod 1 and the combined shaft 2 are welded, so that the device has the length requirement, the strength is ensured, and the weight is reduced. The copper sleeve 3 is in clearance fit with the combined shaft 2. The outer diameter of the combined shaft 2, which is in contact with the copper bush 3, needs to be subjected to brazing and then machined to be in clearance fit with the copper bush 3, so that the copper bush 3 forms relative rotation on the combined shaft 2. The copper cover plate 4 is fastened on the combined shaft 2 through a bolt 5, and the copper sleeve 3 is prevented from falling off from the combined shaft 2. The grounding wire connecting plate 6 and the copper bush 3 are brazed together, when the welded steel pipe is welded in a rotating mode, the combined shaft 2 also rotates, the copper bush 3 and the grounding wire connecting plate 6 can be kept downward all the time when the combined shaft 2 rotates, and therefore the grounding wire is prevented from being twisted. Copper is coated on both sides of the grounding wire connecting plate 6, so that smooth conduction with the grounding wire is ensured. The clamping plate 8 is clamped with the marine pipe through two fastening bolts 7, so that the clamping plate 8 and the marine pipe rotate in unison. Three sides of the interior of the clamping plate 8 need to be subjected to copper brazing and then milled flat, if copper brazing is not performed, the clamping plate is in point or line contact with the steel pipe, the electric conductivity is not good, and after copper brazing is performed, the electric conductivity of copper is greatly superior to that of steel, so that the electric conductivity is ensured, and the connection strength can also be ensured.
The utility model discloses welding and the steel pipe in the double-deck pipeline of each trade need be put up the welding on the rubber roll. The sea pipe welding grounding device is clamped to one end of a welded pipeline through the two bolts, the clamping plate is in contact with the pipeline, and the steel is covered on three sides inside the clamping plate, so that the position of the clamping plate in contact with the pipeline is copper, the electric conductivity is good, the steel bottoming is realized, the rigidity is guaranteed, and the clamping plate is prevented from being deformed when the temperature is high. The grounding wire penetrates through the grounding wire connecting plate to form a loop with the welding machine, so that the welding is facilitated. In practical application, after the two pipelines are placed on the frame roller, when the outer pipe is welded, the device is clamped at the end face of the outer pipe on one side, then the conducting wire penetrates through the hole of the grounding wire connecting plate, so that a loop is formed by the welding machine and the pipelines, and when the welded pipelines are welded in a rotating mode, the grounding wire can be welded without rotating along with the pipelines. The same applies when welding the inner tube. The utility model is suitable for a welding and the steel pipe of the double-deck pipeline of each trade need be put up the welding on the rubber roll.
Claims (10)
1. The utility model provides a sea pipe welding earthing device which characterized by: the novel marine pipe clamping device comprises a supporting rod, a grounding wire connecting plate and a clamping plate, wherein one end of the supporting rod is connected with the grounding wire connecting plate, the other end of the supporting rod is connected with the clamping plate, the clamping plate is of a square structure provided with a clamping marine pipe opening, and a copper welding layer is arranged on the inner wall of the square structure of the clamping plate.
2. The welded marine pipe grounding device according to claim 1, wherein: the combined shaft is arranged at one end, connected with the grounding wire connecting plate, of the supporting rod, the combined shaft body is fixedly connected with the grounding wire connecting plate through a shaft sleeve, and a copper welding layer is arranged on the outer diameter, in contact with the shaft sleeve, of the combined shaft body.
3. The marine pipe welding grounding device of claim 2, wherein: and a copper welding seam is arranged between the shaft sleeve and the grounding wire connecting plate.
4. The marine pipe welding grounding device of claim 2, wherein: the combined shaft is provided with a short section with the same diameter as the support rod, and the short section is connected with the support rod through steel welding.
5. The marine pipe welding grounding device of claim 2, wherein: and a copper cover plate is arranged at the end part of the combined shaft body to block the axial play of the copper sleeve.
6. The marine pipe welding grounding device according to claim 1 or 2, wherein: the thickness of the brazing layer is 2-5 mm.
7. The welded marine pipe grounding device according to claim 1, wherein: and the ground wire connecting plate is provided with a wire hole.
8. The marine pipe welding grounding device of claim 7, wherein: and copper welding layers are arranged on two sides of the grounding wire connecting plate with the wire holes.
9. The welded marine pipe grounding device according to claim 1, wherein: the square structure is provided with an opening on the side surface, and the bottom of the square structure is provided with a fastening bolt.
10. The marine pipe welding grounding device of claim 9, wherein: the length of the lower clamping edge of the square structure is smaller than that of the upper clamping edge, and the fastening bolt is arranged at the head of the lower clamping edge and is fastened through the fastening nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922141669.3U CN211556164U (en) | 2019-12-04 | 2019-12-04 | Welding grounding device for submarine pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922141669.3U CN211556164U (en) | 2019-12-04 | 2019-12-04 | Welding grounding device for submarine pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211556164U true CN211556164U (en) | 2020-09-22 |
Family
ID=72503498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922141669.3U Active CN211556164U (en) | 2019-12-04 | 2019-12-04 | Welding grounding device for submarine pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211556164U (en) |
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2019
- 2019-12-04 CN CN201922141669.3U patent/CN211556164U/en active Active
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