CN217539981U - Socket joint formula welding double containment flange - Google Patents
Socket joint formula welding double containment flange Download PDFInfo
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- CN217539981U CN217539981U CN202221384156.0U CN202221384156U CN217539981U CN 217539981 U CN217539981 U CN 217539981U CN 202221384156 U CN202221384156 U CN 202221384156U CN 217539981 U CN217539981 U CN 217539981U
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Abstract
The utility model provides a socket joint formula welding double containment flange, include: the bellmouth flange is positioned at the right end of the first water delivery steel pipe and welded at a pipe orifice at the right end of the first water delivery steel pipe; the socket flange is positioned on the right side of the socket flange, and the left end of the socket flange is welded and connected with the right end of the socket flange; and the sealing washer is positioned on the surface of the left end of the socket flange, and the sealing washer is embedded and clamped in the groove of the left end of the socket flange. The utility model provides a harmless welded water delivery pipe inner wall weld bead department can progressively corrode, cause further erosion, the drop of peripheral coating, lead to the inefficacy of whole pipeline at last, the socket joint is connected and will be broken away from by radial tensile influence interface, flange joint can regard as buried pipeline's connected mode, lacks the problem that possesses harmless welding and need not be to the double containment flange of inner wall welding seam allowance.
Description
Technical Field
The utility model relates to a sealing flange field, concretely relates to socket joint formula welding double containment flange.
Background
At present water pipe is in order to guarantee the security of water delivery and the service life of extension pipeline, and the pipeline inside and outside wall has all adopted the anticorrosive measure of different modes, and the connection between every section pipeline is the important component part of whole water pipe line, and the connection mode that water pipe mainly adopted at present has: the joint of the inner wall of the water delivery pipe subjected to nondestructive welding can be gradually corroded to further corrode and drop the peripheral coating, finally the whole pipeline is failed, the joint of the socket joint connection can be separated under the influence of radial tension, the flange connection can be used as a connection mode of a buried pipeline, and the problems of nondestructive welding and double-sealing flanges without mending the inner wall welding seams are solved.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, a socket joint type welding double-sealing flange is provided so as to solve the problems that a welding port on the inner wall of a water delivery pipe which is subjected to nondestructive welding can be gradually corroded to cause further erosion and falling of a peripheral coating, finally, the whole pipeline fails, a socket joint connection can be separated from a joint under the influence of radial tension, a flange connection can be used as a connection mode of a buried pipeline, and the double-sealing flange which is subjected to nondestructive welding and does not need to repair a welding seam on the inner wall is lacked.
In order to realize above-mentioned purpose, provide a socket joint formula welding double containment flange, include:
the bellmouth flange is positioned at the right end of the first water delivery steel pipe and welded at a pipe orifice at the right end of the first water delivery steel pipe;
the socket flange is positioned on the right side of the socket flange, and the left end of the socket flange is welded and connected with the right end of the socket flange;
and the sealing washer is positioned on the surface of the left end of the socket flange, and the sealing washer is embedded and clamped in the groove of the left end of the socket flange.
Furthermore, the left end of the outer ring of the spigot flange is provided with an inclined plane concave end inclined plane groove angle of 30 degrees +/-2, and the left end of the bell flange is provided with an inclined plane convex end; and the bevel groove angle of the bevel at the convex end of the bevel is 30 degrees +/-2 degrees.
Furthermore, a second water conveying steel pipe is welded at the right end of the socket flange, and a connecting welding bead is formed by socket joint between the inclined plane concave end and the inclined plane convex end; and the root gap of the welding bead is 3mm.
Further, inner diameter rings with the same size are arranged on the inner sides of the socket flange and the socket flange; and the right socket of the socket flange is welded with the left socket of the socket flange.
Furthermore, the surface of the right end of the bell-mouth flange is provided with an inwards concave socket groove, and the socket flange is seamlessly attached to the surface of the socket groove through a sealing washer.
Further, a heat insulation groove is formed in the surface of the left end of the socket flange; and the heat insulation groove is positioned on the outer side of the sealing washer, and the sealing washer is made of a U-shaped silicon rubber material.
The beneficial effects of the utility model reside in that, the utility model discloses a socket joint formula welding double containment flange utilizes bellmouth flange and socket flange to weld in advance at the both ends of water delivery steel pipe, carry out the socket joint with bellmouth flange and socket flange again, the connection welding bead department through bellmouth flange and socket flange socket joint formation welds, the connection welding bead is in the bellmouth and the socket combines the plane outside, be convenient for discern whether there is defects such as not fusing in the welding seam, the new water delivery steel pipe connected mode that has combined socket joint and has constituted safety and stability with the nondestructive welding, the small-bore has been innovated, withstand voltage, buried pipeline connection method, be convenient for reduce the explosion pipe leakage accident that pipeline corrosion protection became invalid and take place, the water delivery safety of small-bore pipeline has been guaranteed simultaneously, the service life of pipeline has been increased, seal ring through socket flange surface, the conveying medium has been prevented to the sealing washer outdiffusion, the direct and body contact influence quality of water quality of avoiding appearing, through the heat-insulated tank of socket flange outer lane department, be convenient for effectually prevent that the sealing rubber ring of flange department from receiving overheated and damaging the welding in the flange, the problem of the inner circle of repairing sealing that the inner wall and need not lack of nondestructive welding is solved.
Drawings
Fig. 1 is the utility model discloses socket joint formula welding double containment flange split structure sketch map.
Fig. 2 is the utility model discloses socket joint formula welding double containment flange welded structure sketch map.
Fig. 3 is a schematic side view of the socket flange according to the embodiment of the present invention.
1. A first water conveying steel pipe; 11. a second water conveying steel pipe; 2. a socket flange; 21. a slope raised end; 22. A socket groove; 3. a socket flange; 31. a beveled concave end; 32. a heat insulation groove; 33. connecting the welding grooves; 34. An inner diameter ring; 4. a gasket is provided.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can be implemented or applied by other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.
Fig. 1 is the utility model discloses socket joint formula welding double containment flange split structure schematic diagram, fig. 2 do the utility model discloses socket joint formula welding double containment flange welding structure schematic diagram, fig. 3 do the utility model discloses the socket flange looks sideways at section structure schematic diagram.
Referring to fig. 1 to 3, the utility model provides a socket joint formula welding double containment flange, include: a socket flange 2, a socket flange 3 and a sealing gasket 4.
And the bell mouth flange 2 is positioned at the right end of the first water delivery steel pipe 1, and the bell mouth flange 2 is welded at a pipe orifice at the right end of the first water delivery steel pipe 1.
And the sealing washer 4 is positioned on the surface of the left end of the socket flange 3, and the sealing washer 4 is embedded and clamped in the groove of the left end of the socket flange 3.
The weld joint of the inner wall of the water delivery pipe which can not be welded in a damage-free way can be gradually corroded to cause further erosion and falling of the peripheral coating, finally the failure of the whole pipeline is caused, the spigot-and-socket connection can be separated from the joint under the influence of radial tension, the flange connection can be used as a connection mode of a buried pipeline, and the problem that a double-sealing flange which has the advantages of damage-free welding and does not need to repair the weld joint of the inner wall is lacked. Therefore, the utility model discloses a socket joint formula welding double containment flange utilizes bellmouth flange and socket flange to weld in advance at the both ends of water delivery steel pipe, carry out the socket joint with bellmouth flange and socket flange again, the connection weld groove department that forms through bellmouth flange and socket flange socket joint welds, the connection welding bead that is in the outside is convenient for distinguish whether there is not defect such as fuse in the welding seam, the new water delivery steel pipe connected mode that has combined socket joint to constitute safety and stability with the nondestructive welding, the minor-caliber has been innoxious, withstand voltage, bury ground pipeline connection method, the explosion leakage accident that pipeline corrosion resistance became invalid and takes place has been conveniently reduced, the water delivery safety of minor-caliber pipeline has been guaranteed simultaneously, the servicelife of pipeline has been increased, seal ring through socket flange surface, the harmless external diffusion of conveying medium to the sealing washer has been prevented, avoid appearing quality of water direct and body contact influence quality of water, through the heat-proof slot of socket flange department, the sealing rubber ring of inner circle department receives overheated and damages when being convenient for effectual to prevent the flange welding, the problem that possesses the welding and need not have the welding seam allowance to the double containment flange of inner wall is solved.
The left end of the outer ring of the spigot flange 3 is provided with an inclined plane concave end 31, the inclined plane groove angle is 30 degrees +/-2, and the left end of the socket flange 2 is provided with an inclined plane convex end 21; and the bevel groove angle of the bevel protruding end 21 is 30 degrees +/-2.
The socket on the left side of the socket flange 3 and the socket on the right side of the socket flange 2 are both machined, and the contact plane of the socket and the socket is free of burrs and scratches; and the blunt edge of the socket is 1mm.
The right end of the socket flange 3 is welded with a second water conveying steel pipe 11, and a connecting weld bead 33 is formed between the inclined plane concave end 31 and the inclined plane convex end 21 in a socket manner; and the weld root gap of the connecting bead 33 was 3mm.
The inclined plane concave end 31 of the socket flange 2 and the inclined plane concave end 31 of the socket flange 3 are not positioned on the same plane, so that a connecting welding bead 33 is formed, whether the welding seam has defects of incomplete fusion and the like is conveniently distinguished, suspected defects cannot be left on a radiographic testing substrate by a flange connecting surface, and boundary disputes are avoided.
The socket flange 2 and the socket flange 3 are welded only by one or more direct current arc welding machines, backing welding can be performed by shielded metal arc welding directly, current is 120A-130A, voltage is 20V-22V, filling welding and cover surface welding can be performed simultaneously, current is 140A-150A, voltage is 25V-28V, welding speed is greatly improved, welded seams are fused better, and secondary requirements of radiographic inspection are met.
The surface of the right end of the bell flange 2 is provided with an inwards concave socket groove 22, and the socket flange 3 is attached to the surface of the socket groove 22 in a seamless mode through a sealing washer 4.
The sealing washer 4 uses a high-temperature-resistant silica gel sealing washer, the pressure resistance under the radial pressure of the pipeline can reach 4.5Mpa, the outward diffusion of a conveying medium to the sealing washer is conveniently prevented, and the influence on the quality of water caused by the direct contact of the water quality and the pipe body is avoided.
The left end surface of the socket flange 3 is provided with a heat insulation groove 32; and the heat insulation groove 32 is positioned at the outer side of the sealing washer 4, and the sealing washer 4 is made of U-shaped silicon rubber material.
The heat insulation groove 32 on the outer side of the sealing washer 4 can prevent the sealing washer on the inner ring from being damaged due to overheating in the flange welding process. Socket joint type double-seal welding of the bell flange 2 and the spigot flange 3 forms a safe and stable new water delivery steel pipe connection mode, pipe explosion leakage accidents caused by corrosion resistance failure of pipelines are reduced conveniently, and water delivery safety of small-caliber pipelines is guaranteed.
The utility model discloses a socket joint formula welding double containment flange can effectively solve the problem that lacks the double containment flange that possesses harmless welding and need not the inner wall welding seam joint coating, has combined socket joint connection and has constituted the new water delivery steel pipe connected mode of safety and stability with harmless welding, has innovated small-bore, withstand voltage, buried pipeline connection method, is applicable to socket joint formula welding double containment flange.
Claims (6)
1. The utility model provides a socket joint formula welding double containment flange which characterized in that includes:
the bellmouth flange (2) is positioned at the right end of the first water delivery steel pipe (1), and the bellmouth flange (2) is welded at a pipe orifice at the right end of the first water delivery steel pipe (1);
the socket flange (3) is positioned on the right side of the socket flange (2), and the left end of the socket flange (3) is welded and connected with the right end of the socket flange (2);
and the sealing washer (4) is positioned on the left end surface of the socket flange (3), and the sealing washer (4) is embedded and clamped in the groove at the left end of the socket flange (3).
2. Socket type welding double sealing flange according to claim 1, wherein the left end of the outer ring of the socket flange (3) is provided with a beveled concave end (31) and the beveled groove angle is 30 ° ± 2, and the left end of the socket flange (2) is provided with a beveled convex end (21); and the bevel groove angle of the bevel convex end (21) is 30 +/-2 degrees.
3. Socket-welded double sealing flange according to claim 2, characterized in that a second water-carrying steel pipe (11) is welded to the right end of the socket flange (3), and a connecting bead (33) is formed by the socket between the inclined concave end (31) and the inclined convex end (21); and the root gap of the connecting welding bead (33) is 3mm.
4. Socket-welded double sealing flange according to claim 1, characterized in that the socket flange (2) and the socket flange (3) are provided inside with inner diameter rings (34) of the same size; and the right socket of the socket flange (2) is welded with the left socket of the socket flange (3).
5. Socket-type welded double sealing flange according to claim 1, characterized in that the socket flange (2) is provided with a concave socket groove (22) on the right end surface, and the socket flange (3) is seamlessly attached to the socket groove (22) surface by a sealing gasket (4).
6. Socket welded double sealing flange according to claim 1, characterized in that the left end surface of the socket flange (3) is provided with a heat insulation groove (32); and the heat insulation groove (32) is positioned at the outer side of the sealing washer (4), and the sealing washer (4) is made of a U-shaped silicon rubber material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221384156.0U CN217539981U (en) | 2022-06-05 | 2022-06-05 | Socket joint formula welding double containment flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221384156.0U CN217539981U (en) | 2022-06-05 | 2022-06-05 | Socket joint formula welding double containment flange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217539981U true CN217539981U (en) | 2022-10-04 |
Family
ID=83442657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221384156.0U Active CN217539981U (en) | 2022-06-05 | 2022-06-05 | Socket joint formula welding double containment flange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217539981U (en) |
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2022
- 2022-06-05 CN CN202221384156.0U patent/CN217539981U/en active Active
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