CN210179090U - Seamless corrugated hose for nuclear power - Google Patents
Seamless corrugated hose for nuclear power Download PDFInfo
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- CN210179090U CN210179090U CN201920479133.XU CN201920479133U CN210179090U CN 210179090 U CN210179090 U CN 210179090U CN 201920479133 U CN201920479133 U CN 201920479133U CN 210179090 U CN210179090 U CN 210179090U
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- corrugated pipe
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Abstract
A seamless corrugated hose for nuclear power comprises a seamless metal corrugated pipe body, a metal mesh sleeve, an end ring, a butt joint, a flanging sleeve and a loose flange; butt joints are welded at two ends of the seamless metal corrugated pipe body respectively in a butt joint mode, a metal net sleeve is sleeved outside the seamless metal corrugated pipe body, the end portion of the metal net sleeve is fixedly arranged on the butt joint through an end ring sleeve and is welded into a whole, a flanging sleeve is welded to each butt joint of each butt joint, a loop flange is sleeved outside each flanging sleeve, and the loop flanges are welded to flanging positions of the flanging sleeves. The seamless metal corrugated pipe is made by hydraulic forming of one or more layers of seamless high-temperature resistant stainless steel pipes which are sleeved and welded, and can be applied to the field of nuclear power with high-temperature resistance, high-pressure resistance and corrosion resistance; the butt welding seam is in smooth transition, stress concentration is reduced, and the service life and the corrosion resistance are improved; the metal net sleeve improves the pressure resistance; the loose flange is convenient for connection and maintenance. The utility model discloses can ensure nuclear power equipment safe normal operating, have the suitability.
Description
Technical Field
The utility model relates to a bellows technical field especially relates to a seamless corrugated pipe for nuclear power.
Background
The metal corrugated pipe is a pipe with regular wavy pipe wall appearance, can compensate axial displacement and transverse displacement of a pipeline, and can absorb high-frequency vibration caused by machinery, so that flexible connection between the pipeline and equipment is realized. A common metal hose adopts a welded corrugated pipe, and a corrugated pipe welding seam is easy to be prematurely damaged under the working condition of high-temperature and high-pressure corrosive liquid. The corrugated pipe and the joint are welded by adopting common fillet weld, so that stress concentration is easily caused. And the fatigue damage of the corrugated pipe easily causes the leakage of the corrugated pipe, influences the service life and further easily causes safety accidents.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model provides a seamless corrugated pipe for nuclear power.
The purpose of the utility model can be realized by the following technical scheme: a seamless corrugated hose for nuclear power comprises a seamless metal corrugated pipe body, a metal mesh sleeve, an end ring, a butt joint, a flanging sleeve and a loose flange; butt joints are respectively welded at two ends of the seamless metal corrugated pipe body in a butt joint mode, a metal mesh sleeve is sleeved on the outer side of the seamless metal corrugated pipe body, the length of the metal mesh sleeve is longer than that of the seamless metal corrugated pipe body, two ends of the metal mesh sleeve respectively extend to the butt joints at the two ends of the seamless metal corrugated pipe body, end rings are respectively sleeved on the outer sides of the two ends of the metal mesh sleeve, the end rings buckle and press the end portions of the metal mesh sleeve to be fixed to the butt joints at the end, the end rings at the same end, the end portions of the metal mesh sleeve and the butt joints are welded into a whole, a flanging sleeve is welded to the butt joints, a loop flange is sleeved on the outer side of each flanging sleeve, and the loop flange is welded to the.
Furthermore, the seamless metal corrugated pipe body is formed by hydraulic forming of one or more layers of seamless metal pipes which are sleeved and welded. Furthermore, the seamless metal pipe is a seamless high-temperature-resistant stainless steel pipe.
Furthermore, the number of the metal net sleeves is two, and the two metal net sleeves are respectively a first metal net sleeve and a second metal net sleeve; the seamless metal corrugated pipe comprises a seamless metal corrugated pipe body and is characterized in that a first metal net sleeve and a second metal net sleeve are sequentially sleeved on the outer side of the seamless metal corrugated pipe body from inside to outside, two ends of the first metal net sleeve and two ends of the second metal net sleeve respectively extend to butt joints at two ends of the seamless metal corrugated pipe body, an end ring is sleeved on the outer side of each of two ends of the second metal net sleeve respectively, the end rings buckle and press the end parts of the first metal net sleeve and the second metal net sleeve to be fixed on the butt joints at the end, and the end rings at the same end, the end parts of the first metal net sleeve and the second metal net sleeve and the butt joints are welded into a whole.
Furthermore, more than two bolt mounting holes are uniformly distributed along the circumferential direction on the loop flange.
Further, the weld of each of the butt welds transitions smoothly.
Compared with the prior art, the beneficial effects of the utility model are that: the seamless metal corrugated pipe is made by hydraulic forming of one or more layers of seamless high-temperature resistant stainless steel pipes which are sleeved and welded, and can be applied to the field of nuclear power with high-temperature resistance, high-pressure resistance and corrosion resistance; the seamless metal corrugated pipe is butt-welded with the butt joint, the butt joint is butt-welded with the flanging sleeve, the butt weld is inspected by X-ray flaw detection, the reliability of a welding structure is ensured, the butt weld is in smooth transition, stress concentration is reduced, and the service life and the corrosion resistance are improved; the seamless metal corrugated pipe is sleeved with the metal mesh sleeve, the end part of the metal mesh sleeve is sleeved on the butt joint through an end ring and is welded and fixed, and the pressure resistance of the metal mesh sleeve is improved; the loop flange is used for being connected with pipelines and equipment, and is convenient to assemble and maintain. The utility model discloses nuclear power is with seamless corrugated pipe can ensure nuclear power equipment safe normal operating, has very strong suitability.
Drawings
Fig. 1 is a half sectional view of the present invention.
Fig. 2 is a perspective view of the present invention.
Fig. 3 is a schematic view of the seamless metal bellows body, the metal mesh, the end ring, and the butt joint according to the present invention.
Fig. 4 is a schematic view of an end face of the present invention.
The parts in the figures are numbered as follows:
1 seamless metal corrugated pipe
2 first metal net cover
3 second metal net cover
4 end ring
5 butt joint
6 turn-ups sleeve
7 looping flange
701 bolt mounting holes.
Detailed Description
The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings to make it clear to those skilled in the art how to practice the invention. While the invention has been described in connection with its preferred embodiments, these embodiments are intended to be illustrative, and not to limit the scope of the invention.
Referring to fig. 1 and 2, a seamless corrugated hose for nuclear power includes a seamless metal corrugated pipe body 1, a first metal mesh sleeve 2, a second metal mesh sleeve 3, an end ring 4, a butt joint 5, a flanging sleeve 6 and a loose flange 7.
The seamless metal corrugated pipe body 1 is formed by hydraulic forming of one or more layers of seamless metal pipes which are sleeved and welded. The seamless metal corrugated pipe body 1 is made of high-temperature-resistant stainless steel, is thick in wall thickness, strong in pressure resistance and long in service life, and can be applied to occasions with corrosion at high temperature and high pressure, such as nuclear power equipment pipelines and the like. The seamless metal corrugated pipe body 1 is formed through hydraulic pressure, the corrugated surface is smooth, mechanical damage is avoided, axial displacement and transverse displacement of a pipeline can be compensated, and high-frequency vibration caused by machinery can be absorbed.
Two ends of the seamless metal corrugated pipe body 1 are respectively welded with a butt joint 5 in a butt joint mode.
The seamless metal corrugated pipe body 1 is sequentially sleeved with the first metal mesh 2 and the second metal mesh 3 from inside to outside, and the first metal mesh 2 and the second metal mesh 3 improve the pressure resistance of the seamless corrugated pipe for nuclear power.
The first metal net sleeve 2 and the second metal net sleeve 3 are the same in length and are both longer than the seamless metal corrugated pipe body 1. Referring to fig. 3, two ends of the first metal mesh sleeve 2 and the second metal mesh sleeve 3 respectively extend to the butt joints 5 at two ends of the seamless metal corrugated pipe body 1, end rings 4 are respectively sleeved outside two ends of the second metal mesh sleeve 3, the end rings 4 press and fix the end portions of the first metal mesh sleeve 2 and the second metal mesh sleeve 3 to the butt joints 5 at the ends, and the end rings 4 at the same end, the end portions of the first metal mesh sleeve 2 and the second metal mesh sleeve 3, and the butt joints 5 are welded into a whole, so that the structure of the end portions is ensured to be firm.
And a flanging sleeve 6 is welded to each butt joint 5 in a butt joint mode.
The outer side of each flanging sleeve 6 is sleeved with a loop flange 7, the loop flanges 7 are connected to the flanging position of the flanging sleeve 6 in a welding mode, more than two bolt mounting holes 701 are uniformly distributed in the circumferential direction on the loop flanges 7, the number of the bolt mounting holes 701 shown in fig. 4 is four, and the loop flanges 7 are used for being connected with pipelines and equipment and being convenient to assemble and maintain.
The butt welding seam is inspected by X-ray flaw detection to ensure the reliability of the welding structure. The butt welding seam is polished to be in smooth transition, stress concentration is prevented, and the service life and the corrosion resistance of the seamless corrugated hose for nuclear power are improved.
It should be noted that many variations and modifications of the embodiments of the present invention are possible, which are fully described, and are not limited to the specific examples of the above embodiments. The above embodiments are merely illustrative of the present invention and are not intended to limit the present invention. In conclusion, the scope of the present invention should include those changes or substitutions and modifications which are obvious to those of ordinary skill in the art.
Claims (6)
1. A seamless corrugated hose for nuclear power is characterized by comprising a seamless metal corrugated hose body, a metal mesh sleeve, an end ring, a butt joint, a flanging sleeve and a loop flange; butt joints are respectively welded at two ends of the seamless metal corrugated pipe body in a butt joint mode, a metal mesh sleeve is sleeved on the outer side of the seamless metal corrugated pipe body, the length of the metal mesh sleeve is longer than that of the seamless metal corrugated pipe body, two ends of the metal mesh sleeve respectively extend to the butt joints at the two ends of the seamless metal corrugated pipe body, end rings are respectively sleeved on the outer sides of the two ends of the metal mesh sleeve, the end rings buckle and press the end portions of the metal mesh sleeve to be fixed to the butt joints at the end, the end rings at the same end, the end portions of the metal mesh sleeve and the butt joints are welded into a whole, a flanging sleeve is welded to the butt joints, a loop flange is sleeved on the outer side of each flanging sleeve, and the loop flange is welded to the.
2. The nuclear power seamless corrugated hose according to claim 1, wherein the seamless metal corrugated hose body is formed by hydraulic molding of one or more layers of seamless metal pipes which are sleeved and welded.
3. The seamless corrugated hose for nuclear power according to claim 2, wherein the seamless metal pipe is a seamless high-temperature-resistant stainless steel pipe.
4. The seamless corrugated hose for nuclear power as claimed in claim 1, wherein the number of the metal mesh sleeves is two, and the two metal mesh sleeves are respectively a first metal mesh sleeve and a second metal mesh sleeve; the seamless metal corrugated pipe comprises a seamless metal corrugated pipe body and is characterized in that a first metal net sleeve and a second metal net sleeve are sequentially sleeved on the outer side of the seamless metal corrugated pipe body from inside to outside, two ends of the first metal net sleeve and two ends of the second metal net sleeve respectively extend to butt joints at two ends of the seamless metal corrugated pipe body, an end ring is sleeved on the outer side of each of two ends of the second metal net sleeve respectively, the end rings buckle and press the end parts of the first metal net sleeve and the second metal net sleeve to be fixed on the butt joints at the end, and the end rings at the same end, the end parts of the first metal net sleeve and the second metal net sleeve and the butt joints are welded into a whole.
5. The seamless corrugated hose for nuclear power as claimed in claim 1, wherein the lap joint flange has two or more bolt mounting holes uniformly distributed along the circumferential direction.
6. The seamless corrugated hose for nuclear power as claimed in claim 1, wherein the weld at each butt weld is in smooth transition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920479133.XU CN210179090U (en) | 2019-04-10 | 2019-04-10 | Seamless corrugated hose for nuclear power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920479133.XU CN210179090U (en) | 2019-04-10 | 2019-04-10 | Seamless corrugated hose for nuclear power |
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| Publication Number | Publication Date |
|---|---|
| CN210179090U true CN210179090U (en) | 2020-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920479133.XU Active CN210179090U (en) | 2019-04-10 | 2019-04-10 | Seamless corrugated hose for nuclear power |
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| CN (1) | CN210179090U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114017550A (en) * | 2021-11-23 | 2022-02-08 | 河南航天工业有限责任公司 | High-pressure metal hose with anti-loosening connecting structure and using method thereof |
-
2019
- 2019-04-10 CN CN201920479133.XU patent/CN210179090U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114017550A (en) * | 2021-11-23 | 2022-02-08 | 河南航天工业有限责任公司 | High-pressure metal hose with anti-loosening connecting structure and using method thereof |
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