CN217815497U - Corrosion-resistant nodular cast iron pipe - Google Patents
Corrosion-resistant nodular cast iron pipe Download PDFInfo
- Publication number
- CN217815497U CN217815497U CN202221593464.4U CN202221593464U CN217815497U CN 217815497 U CN217815497 U CN 217815497U CN 202221593464 U CN202221593464 U CN 202221593464U CN 217815497 U CN217815497 U CN 217815497U
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- cast iron
- nodular cast
- iron pipe
- corrosion
- fixed ring
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Abstract
The utility model discloses a corrosion-resistant nodular cast iron pipe, including the nodular cast iron body, outer anticorrosive coating, interior anticorrosive coating, first annular groove, first sealing washer, second sealing washer and butt portion, it is fixed with the nut to carry out threaded connection after passing the perforation on the solid fixed ring of second and the first solid fixed ring through the one end of the screw in the mounting, thereby fix first solid fixed ring and the solid fixed ring of second through the screw and nut, stretch into the one end inboard of another nodular cast iron pipe and with the butt portion butt with one of them nodular cast iron pipe's the other end, the other end through one of them nodular cast iron pipe extrudees and closely laminates to the first sealing washer in another nodular cast iron pipe, form sealedly, and make the one end outer wall of one of them nodular cast iron pipe extrude and closely laminate with the second sealing washer in another nodular cast iron pipe, form sealedly, thereby set up through twice seal, the connection leakproofness of two adjacent nodular cast iron pipes has been improved.
Description
Technical Field
The utility model relates to a nodular cast-iron pipe specifically is a corrosion-resistant nodular cast-iron pipe.
Background
The nodular cast iron pipe is a pipe which is formed by adding a nodulizer into cast molten iron above No. 18 and then centrifugally casting the molten iron at a high speed by a centrifugal nodular cast iron machine, and is called a nodular cast iron pipe, a nodular cast iron pipe and the like for short. The most of the nodular cast iron pipes for water, oil and gas transportation are nodular cast iron pipes.
When two traditional nodular cast iron pipes are connected, the sealing performance of the joint is poor, the leakage of the joint is easy to occur, the traditional nodular cast iron pipes are basically bare pipe bodies, and the outer surfaces of the traditional nodular cast iron pipes are not well protected, so that the corrosion resistance is poor, the service life is short, and therefore, the corrosion-resistant nodular cast iron pipes are provided for optimizing the corrosion-resistant nodular cast iron pipes.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a corrosion-resistant nodular cast-iron pipe to solve two traditional nodular cast-iron pipes when connecting, the sealing performance of its junction is not good, often appears the condition that the junction was revealed easily, and traditional nodular cast-iron pipe is naked body basically, and the surface is owing to not having good protection, therefore the corrosion resistance is relatively poor, the shorter problem of life.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the corrosion-resistant nodular cast iron pipe comprises a nodular cast iron pipe body, wherein a first fixing ring is fixedly sleeved on the outer side of one end of the nodular cast iron pipe body, a second fixing ring is fixedly sleeved on the outer side of the other end of the nodular cast iron pipe body, a plurality of through holes are correspondingly formed in the first fixing ring and the second fixing ring, a second annular groove is formed in the inner side of one end of the nodular cast iron pipe body, a second sealing ring is arranged on the inner side of the second annular groove, an abutting portion is arranged on the inner side of one end of the nodular cast iron pipe body, a first annular groove is formed in the position, corresponding to the abutting portion, of the inner side of one end of the nodular cast iron pipe body, and a first sealing ring is arranged on the inner side of the first annular groove.
As a further aspect of the present invention: the first sealing ring is a rubber sealing ring.
As the utility model discloses further scheme again: the second sealing ring is a rubber sealing ring.
As a further aspect of the present invention: two fixed ring's of the solid fixed ring of second one side symmetry fixedly connected with location lug, two positioning groove have been seted up to the one end symmetry of nodular cast iron body, positioning groove and the setting of location lug looks adaptation and one-to-one, still including the mounting, the mounting is provided with a plurality of, and a plurality of mounting corresponds the setting with a plurality of perforation, and the mounting includes nut and screw.
As a further aspect of the present invention: the outer surface of the nodular cast iron pipe body is provided with an outer anticorrosive coating, and the inner surface of the nodular cast iron pipe body is provided with an inner anticorrosive coating.
As a further aspect of the present invention: the outer anticorrosive layer and the inner anticorrosive layer are both nano organic ceramic anticorrosive paint.
Compared with the prior art, the beneficial effects of the utility model are that:
1. one end of a screw in the fixing piece penetrates through the second fixing ring and a through hole in the first fixing ring and then is in threaded connection with the nut, so that the first fixing ring and the second fixing ring are fixed through the screw and the nut, the other end of one nodular cast iron pipe extends into the inner side of one end of the other nodular cast iron pipe and abuts against the abutting portion, the first sealing ring in the other nodular cast iron pipe is extruded and tightly attached through the other end of the one nodular cast iron pipe to form sealing, the outer wall of one end of the one nodular cast iron pipe is extruded and tightly attached to the second sealing ring in the other nodular cast iron pipe to form sealing, and therefore the sealing performance of the connection of the two adjacent nodular cast iron pipes is improved through two sealing arrangements, and the risk of leakage at the connection position is greatly reduced.
2. The projections in one of the nodular cast iron pipes are inserted into the other positioning groove in a one-to-one correspondence mode, so that the through holes in the second fixing ring and the first fixing ring in two adjacent nodular cast iron pipes are conveniently positioned in a one-to-one correspondence mode.
3. Through the setting of outer anticorrosive coating, can effectively improve the anti erosive ability of nodular cast iron body to outside acid-base composition, through the setting of interior anticorrosive coating, improved the anti erosive ability of nodular cast iron body to acid-base composition in the inboard fluid of process to improve the corrosion resisting property of this nodular cast iron pipe, thereby improved the life of nodular cast iron pipe.
Drawings
Fig. 1 is a schematic structural view of a corrosion-resistant ductile cast iron pipe.
Fig. 2 is a cross-sectional view of a corrosion-resistant ductile cast iron pipe.
Fig. 3 is an enlarged view of a portion a of the corrosion-resistant ductile cast iron pipe.
Shown in the figure: first solid fixed ring 1, nodular cast iron body 2, outer anticorrosive coating 3, interior anticorrosive coating 4, first annular groove 5, first sealing washer 6, second sealing washer 7, second annular groove 8, positioning groove 9, nut 10, the solid fixed ring of second 11, screw 12, location lug 13, perforation 14, butt portion 15.
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.
Please refer to fig. 1-3, in an embodiment of the present invention, a corrosion-resistant nodular cast iron pipe comprises a nodular cast iron pipe body 2, a first fixing ring 1 is fixed to the one end outside of the nodular cast iron pipe body 2, a second fixing ring 11 is fixed to the other end outside of the nodular cast iron pipe body 2, a plurality of perforation 14 is correspondingly formed on the first fixing ring 1 and the second fixing ring 11, a second annular groove 8 is formed in the one end inside of the nodular cast iron pipe body 2, a second sealing ring 7 is arranged on the inside of the second annular groove 8, a butting portion 15 is arranged on the one end inside of the nodular cast iron pipe body 2, a first annular groove 5 is formed in the position corresponding to the butting portion 15 inside the one end of the nodular cast iron pipe body 2, and a first sealing ring 6 is arranged on the inside of the first annular groove 5.
The first sealing ring 6 is a rubber sealing ring, and the sealing performance of the joint is improved.
The second sealing ring 7 is a rubber sealing ring, and the sealing performance of the joint is improved.
Two fixed ring 11's a side symmetry fixedly connected with location lug 13 of second, two positioning groove 9 have been seted up to the one end symmetry of nodular cast iron body 2, positioning groove 9 and the setting of location lug 13 looks adaptation and one-to-one.
The fixing device comprises a plurality of fixing pieces, wherein the fixing pieces are arranged corresponding to the through holes 14 and comprise nuts 10 and screws 12.
The outer surface of the nodular cast iron pipe body 2 is provided with an outer anticorrosive layer 3, the inner surface of the nodular cast iron pipe body 2 is provided with an inner anticorrosive layer 4, the outer anticorrosive layer 3 and the inner anticorrosive layer 4 are nano organic ceramic anticorrosive paint, the nano organic ceramic anticorrosive paint is HS-666 type nano organic ceramic anticorrosive paint, the HS-666 nano organic ceramic anticorrosive paint adopts special organic resin as a main body, and the high-temperature-resistant strong acid and strong base-resistant double-component heavy-duty anticorrosive paint is prepared by adding ceramic powder, nano materials, acid and alkali-resistant pigment fillers, special curing agents and the like.
And the outer surfaces of the first fixing ring 1 and the second fixing ring 11 are coated with nano organic ceramic anticorrosive paint.
The utility model discloses a theory of operation is:
when two adjacent corrosion-resistant nodular cast iron pipes are connected, the other end of one nodular cast iron pipe extends into the inner side of one end of the other nodular cast iron pipe and abuts against the abutting part 15, meanwhile, the positioning lugs 13 are inserted into the positioning grooves 9 in a one-to-one correspondence mode, the first sealing ring 6 in the other nodular cast iron pipe is extruded and tightly attached through the other end of one nodular cast iron pipe, the outer wall of one end of one nodular cast iron pipe is extruded and tightly attached with the second sealing ring 7 in the other nodular cast iron pipe, one end of a screw 12 in the fixing part penetrates through the second fixing ring 11 and a through hole 14 in the first fixing ring 1 and then is fixedly connected with a nut 10 in a threaded mode, the first fixing ring 1 and the second fixing ring 11 are fixed through the screw 12 and the nut 10, therefore the two nodular cast iron pipes are stably connected, the corrosion resistance of the nodular cast iron pipe body 2 to external acid and alkali components in fluid passing through the inner side of the nodular cast iron pipe body 2 is improved through the arrangement of the outer corrosion-resistant layer 3, and the corrosion resistance of the nodular cast iron pipe body 2 to the corrosion-resistant nodular cast iron pipe is improved.
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 or portions thereof without departing from the spirit and scope of the invention.
Claims (6)
1. The utility model provides a corrosion-resistant nodular cast iron pipe, includes nodular cast iron body (2), its characterized in that: the fixed cover in the one end outside of nodular cast iron body (2) is equipped with first solid fixed ring (1), the fixed cover in the other end outside of nodular cast iron body (2) is equipped with the solid fixed ring of second (11), all correspond on the solid fixed ring of first solid fixed ring (1) and the solid fixed ring of second (11) and seted up a plurality of perforation (14), second annular groove (8) have been seted up to the one end inboard of nodular cast iron body (2), the inboard of second annular groove (8) is provided with second sealing washer (7), the one end inboard of nodular cast iron body (2) is provided with butt portion (15), the one end inboard of nodular cast iron body (2) corresponds butt portion (15) department and has seted up first annular groove (5), the inboard of first annular groove (5) is provided with first sealing washer (6).
2. The corrosion-resistant ductile cast iron pipe according to claim 1, wherein: the first sealing ring (6) is a rubber sealing ring.
3. The corrosion-resistant ductile cast iron pipe according to claim 1, wherein: the second sealing ring (7) is a rubber sealing ring.
4. The corrosion-resistant ductile cast iron pipe according to claim 1, wherein: two locating convex blocks (13) of the fixed ring (11) of one side symmetry fixedly connected with of second, two positioning groove (9) have been seted up to the one end symmetry of nodular cast iron body (2), positioning groove (9) and locating convex block (13) looks adaptation and one-to-one setting still including the mounting, the mounting is provided with a plurality of, and a plurality of mounting and a plurality of are perforated (14) and are corresponded the setting, and the mounting includes nut (10) and screw (12).
5. The corrosion-resistant ductile cast iron pipe according to claim 1, wherein: the outer surface of the nodular cast iron pipe body (2) is provided with an outer anticorrosive coating (3), and the inner surface of the nodular cast iron pipe body (2) is provided with an inner anticorrosive coating (4).
6. The corrosion-resistant ductile cast iron pipe of claim 5, wherein: the outer anticorrosive layer (3) and the inner anticorrosive layer (4) are both nano organic ceramic anticorrosive paint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221593464.4U CN217815497U (en) | 2022-06-24 | 2022-06-24 | Corrosion-resistant nodular cast iron pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221593464.4U CN217815497U (en) | 2022-06-24 | 2022-06-24 | Corrosion-resistant nodular cast iron pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217815497U true CN217815497U (en) | 2022-11-15 |
Family
ID=83994708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221593464.4U Active CN217815497U (en) | 2022-06-24 | 2022-06-24 | Corrosion-resistant nodular cast iron pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217815497U (en) |
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2022
- 2022-06-24 CN CN202221593464.4U patent/CN217815497U/en active Active
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