CN215334918U - Large-diameter plastic-steel composite pipe - Google Patents
Large-diameter plastic-steel composite pipe Download PDFInfo
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- CN215334918U CN215334918U CN202121477564.6U CN202121477564U CN215334918U CN 215334918 U CN215334918 U CN 215334918U CN 202121477564 U CN202121477564 U CN 202121477564U CN 215334918 U CN215334918 U CN 215334918U
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Abstract
The utility model relates to the technical field of plastic steel composite pipelines, in particular to a large-diameter plastic steel composite pipe which comprises a large-diameter straight-seam submerged arc steel pipe and an ultrahigh molecular weight polyethylene thin-wall pipeline, wherein the ultrahigh molecular weight polyethylene thin-wall pipeline is sleeved outside the large-diameter straight-seam submerged arc steel pipe, the left end and the right end of the ultrahigh molecular weight polyethylene thin-wall pipeline are fixedly connected with first anti-corrosion sleeves, the left end of the large-diameter straight-seam submerged arc steel pipe is fixedly connected with a bottom steel ring, the right end of the large-diameter straight-seam submerged arc steel pipe is provided with a top steel ring, the upper end and the lower end of the top steel ring are respectively provided with a first hoisting hole, and the inner sides of the upper end and the lower end of the large-diameter straight-seam submerged arc steel pipe are respectively provided with a second hoisting hole. The service life and the safety of the pipeline are improved.
Description
Technical Field
The utility model relates to the technical field of plastic steel composite pipelines, in particular to a large-caliber plastic steel composite pipe.
Background
The ultra-high molecular weight polyethylene is thermoplastic engineering plastic with the viscosity average molecular weight more than 200 ten thousand, which is polymerized by ethylene and butadiene monomers under the action of a catalyst; the ultra-high molecular weight polyethylene pipe has the superior performances of extremely high wear resistance, impact resistance, excellent internal pressure resistance, environmental stress crack resistance, good self-lubrication, adhesion resistance, unique low temperature resistance, excellent chemical stability and the like, and is widely applied to industries such as metallurgical mines, electric power, petroleum, natural gas, textile, papermaking, food, chemical industry, machinery, electrical industry and the like.
In practical application, the application range of the ultra-high molecular weight polyethylene pipeline is larger, but the application of the pipeline in the ocean is basically in a blank state, and the ultra-high molecular weight polyethylene pipeline is found to be very suitable as a pile pipe of an offshore platform through investigation of relevant departments and communication of foreign clients; at present, most of pile pipes of offshore platforms use large-caliber welded steel pipes, and the outer surfaces of the steel pipes are subjected to anticorrosion treatment or are wrapped with some anticorrosion materials; the superior performances of the ultra-high molecular weight polyethylene such as weather resistance, corrosion resistance and the like far exceed those of some anticorrosive materials, so that the large-caliber plastic-steel composite pipe is provided for solving the problems.
Disclosure of Invention
The utility model aims to provide a large-caliber plastic-steel composite pipe to solve the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme:
a large-caliber plastic-steel composite pipe comprises a large-caliber straight-slit submerged arc steel pipe and an ultrahigh molecular weight polyethylene thin-wall pipeline, an ultrahigh molecular weight polyethylene thin-wall pipeline is sleeved outside the large-caliber straight-seam submerged arc steel pipe, the left end and the right end of the ultrahigh molecular weight polyethylene thin-wall pipeline are fixedly connected with first anti-corrosion sleeves, the other end of the first anti-corrosion sleeve is fixedly connected with the outer end face of the large-caliber straight-seam submerged arc steel pipe, the left end of the large-caliber straight-seam submerged arc steel pipe is fixedly connected with a bottom steel ring, the right end of the large-caliber straight-slit submerged arc steel pipe is provided with a top steel ring, the upper end and the lower end of the top steel ring are both provided with a first hoisting hole, second hoisting holes are formed in the inner sides of the upper end and the lower end of the large-caliber straight-seam submerged arc steel pipe, second anti-corrosion sleeves are arranged on the inner sides of the first hoisting hole and the second hoisting hole, and the upper end and the lower end of the second anti-corrosion sleeve are respectively fixedly connected with the outer end face of the top steel ring and the inner end face of the large-caliber straight-slit submerged arc steel pipe.
Preferably, a first expansion joint is arranged between the bottom steel ring and the ultra-high molecular weight polyethylene thin-wall pipeline, and the width of the first expansion joint is 20 mm.
Preferably, a second expansion joint is arranged between the top steel ring and the ultra-high molecular weight polyethylene thin-wall pipeline, and the width of the second expansion joint is 70 mm.
Preferably, a first welding seam is welded at the joint of the bottom steel ring and the left end face of the large-caliber straight-seam submerged arc steel pipe, and the bottom steel ring is fixedly connected with the large-caliber straight-seam submerged arc steel pipe through the first welding seam.
Preferably, the diameters of the first hoisting hole and the second hoisting hole are both 50mm, and the positions of the first hoisting hole and the second hoisting hole are aligned up and down.
Preferably, a second welding seam is welded at the joint of the right end face of the top steel ring and the right end face of the large-caliber straight-seam submerged arc steel pipe, a third welding seam is welded at the joint of the left end face of the top steel ring and the large-caliber straight-seam submerged arc steel pipe, and the top steel ring is fixedly connected with the third welding seam through the second welding seam.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the utility model, the corrosion resistance and weather resistance of the pipe can be greatly improved through the arranged large-caliber straight-seam submerged arc steel pipe and the ultra-high molecular weight polyethylene thin-wall pipeline, the service life and safety of the pipeline are improved, meanwhile, the adopted bottom steel ring is convenient for positioning and installation of the steel pipe, the adopted top steel ring is convenient for moving and hoisting of the steel pipe, and the adopted corrosion-resistant sleeve can protect the joint of the pipe, so that the corrosion of the joint for a long time is avoided, and the service life of the pipe is prolonged.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure at A of FIG. 1 according to the present invention.
In the figure: 1-large-caliber straight-seam submerged arc steel pipe, 2-ultrahigh molecular weight polyethylene thin-wall pipeline, 3-first anti-corrosion sleeve, 4-bottom steel ring, 5-first welding seam, 6-first expansion joint, 7-top steel ring, 8-second welding seam, 9-third welding seam, 10-first hoisting hole, 11-second hoisting hole, 12-second expansion joint and 13-second anti-corrosion sleeve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.
Referring to fig. 1-2, the present invention provides a technical solution:
a large-diameter plastic-steel composite pipe comprises a large-diameter straight-seam submerged arc steel pipe 1 and an ultrahigh molecular weight polyethylene thin-wall pipeline 2, the ultrahigh molecular weight polyethylene thin-wall pipeline 2 is sleeved outside the large-diameter straight-seam submerged arc steel pipe 1, a first anti-corrosion sleeve 3 is fixedly connected to each of the left end and the right end of the ultrahigh molecular weight polyethylene thin-wall pipeline 2, the other end of the first anti-corrosion sleeve 3 is fixedly connected with the outer end face of the large-diameter straight-seam submerged arc steel pipe 1, a bottom steel ring 4 is fixedly connected to the left end of the large-diameter straight-seam submerged arc steel pipe 1, a top steel ring 7 is arranged at the right end of the large-diameter straight-seam submerged arc steel pipe 1, first hoisting holes 10 are formed in the upper end and the lower end of the top steel ring 7, second hoisting holes 11 are formed in the inner sides of the upper end and the lower end of the large-diameter straight-seam submerged arc steel pipe 1, second anti-corrosion sleeves 13 are arranged on the inner sides of the first hoisting holes 10 and the second hoisting holes 11, and the upper end and the upper and lower ends of the second anti-corrosion sleeves 13 are respectively connected with the outer end face of the top steel ring 7 and the inner end face of the large-diameter straight-seam submerged arc steel pipe 1 And (4) connecting.
A first expansion joint 6 is arranged between the bottom steel ring 4 and the ultra-high molecular weight polyethylene thin-wall pipeline 2, and the width of the first expansion joint 6 is 20 mm; a second expansion joint 12 is arranged between the top steel ring 7 and the ultra-high molecular weight polyethylene thin-wall pipeline 2, and the width of the second expansion joint 12 is 70 mm; a first welding seam 5 is welded at the joint of the bottom steel ring 4 and the left end face of the large-caliber straight-seam submerged arc steel pipe 1, and the bottom steel ring 4 is fixedly connected with the large-caliber straight-seam submerged arc steel pipe 1 through the first welding seam 5; the diameters of the first hoisting hole 10 and the second hoisting hole 11 are both 50mm, and the positions of the first hoisting hole 10 and the second hoisting hole 11 are aligned up and down; a second welding seam 8 is welded at the joint of the right end face of the top steel ring 7 and the right end face of the large-caliber straight-seam submerged arc steel pipe 1, a third welding seam 9 is welded at the joint of the left end face of the top steel ring 7 and the large-caliber straight-seam submerged arc steel pipe 1, and the top steel ring 7 is fixedly connected with the third welding seam 9 through the second welding seam 8.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a heavy-calibre plastic-steel composite pipe, includes heavy-calibre straight seam submerged arc steel pipe (1) and ultra high molecular weight polyethylene thin wall pipeline (2), its characterized in that: an ultrahigh molecular weight polyethylene thin-wall pipeline (2) is sleeved outside the large-caliber straight-joint submerged arc steel pipe (1), the left end and the right end of the ultrahigh molecular weight polyethylene thin-wall pipeline (2) are fixedly connected with a first anti-corrosion sleeve (3), the other end of the first anti-corrosion sleeve (3) is fixedly connected with the outer end face of the large-caliber straight-joint submerged arc steel pipe (1), the left end of the large-caliber straight-joint submerged arc steel pipe (1) is fixedly connected with a bottom steel ring (4), the right end of the large-caliber straight-joint submerged arc steel pipe (1) is provided with a top steel ring (7), the upper end and the lower end of the top steel ring (7) are respectively provided with a first hoisting hole (10), the inner sides of the upper end and the lower end of the large-caliber straight-joint submerged arc steel pipe (1) are respectively provided with a second hoisting hole (11), and the inner sides of the first hoisting hole (10) and the second hoisting hole (11) are provided with a second anti-corrosion sleeve (13), and the upper end and the lower end of the second anti-corrosion sleeve (13) are respectively fixedly connected with the outer end surface of the top steel ring (7) and the inner end surface of the large-caliber straight-slit submerged arc steel pipe (1).
2. The large-caliber plastic-steel composite pipe according to claim 1, wherein: a first expansion joint (6) is arranged between the bottom steel ring (4) and the ultra-high molecular weight polyethylene thin-wall pipeline (2), and the width of the first expansion joint (6) is 20 mm.
3. The large-caliber plastic-steel composite pipe according to claim 1, wherein: and a second expansion joint (12) is arranged between the top steel ring (7) and the ultra-high molecular weight polyethylene thin-wall pipeline (2), and the width of the second expansion joint (12) is 70 mm.
4. The large-caliber plastic-steel composite pipe according to claim 1, wherein: a first welding seam (5) is welded at the joint of the bottom steel ring (4) and the left end face of the large-caliber straight-seam submerged arc steel pipe (1), and the bottom steel ring (4) is fixedly connected with the large-caliber straight-seam submerged arc steel pipe (1) through the first welding seam (5).
5. The large-caliber plastic-steel composite pipe according to claim 1, wherein: the diameters of the first hoisting hole (10) and the second hoisting hole (11) are both 50mm, and the positions of the first hoisting hole (10) and the second hoisting hole (11) are aligned up and down.
6. The large-caliber plastic-steel composite pipe according to claim 1, wherein: the welding of the right-hand member face of top steel ring (7) and the right-hand member face junction of heavy-calibre straight seam submerged arc steel pipe (1) has second welding seam (8), the left end face of top steel ring (7) and the junction welding of heavy-calibre straight seam submerged arc steel pipe (1) have third welding seam (9), and top steel ring (7) are through second welding seam (8) and third welding seam (9) fixed connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121477564.6U CN215334918U (en) | 2021-07-01 | 2021-07-01 | Large-diameter plastic-steel composite pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121477564.6U CN215334918U (en) | 2021-07-01 | 2021-07-01 | Large-diameter plastic-steel composite pipe |
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| Publication Number | Publication Date |
|---|---|
| CN215334918U true CN215334918U (en) | 2021-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121477564.6U Active CN215334918U (en) | 2021-07-01 | 2021-07-01 | Large-diameter plastic-steel composite pipe |
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| CN (1) | CN215334918U (en) |
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- 2021-07-01 CN CN202121477564.6U patent/CN215334918U/en active Active
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