CN216201506U - High-permeability and high-durability slurry conveying pipeline component - Google Patents
High-permeability and high-durability slurry conveying pipeline component Download PDFInfo
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- CN216201506U CN216201506U CN202122240743.4U CN202122240743U CN216201506U CN 216201506 U CN216201506 U CN 216201506U CN 202122240743 U CN202122240743 U CN 202122240743U CN 216201506 U CN216201506 U CN 216201506U
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Abstract
The utility model relates to a high-permeability and high-durability slurry conveying pipeline component, and belongs to the technical field of tunnel engineering excavation. The device comprises two standard flanges and a bent pipe which is arranged between the standard flanges and has curvature requirement, wherein the bent pipe is connected to a turning part of a mud circulation system through the standard flanges; the elbow is characterized in that the outmost layer of the elbow is a steel pipe layer, an alpha-aluminum oxide inner liner layer and a polytetrafluoroethylene inner liner layer are sequentially arranged in the elbow, the alpha-aluminum oxide inner liner layer is tightly attached to the steel pipe layer, and the polytetrafluoroethylene inner liner layer is sprayed on the alpha-aluminum oxide inner liner layer. The friction of slurry on the bent pipe is reduced by arranging the polytetrafluoroethylene inner liner with extremely low friction coefficient; the hardness of the pipeline is increased by arranging the alpha-aluminum oxide lining layer, and the capability of the elbow in resisting the impact and friction of slurry is improved. The cost is not increased much, and the performance improvement effect is obvious.
Description
Technical Field
The utility model relates to a high-permeability and high-durability slurry conveying pipeline component, and belongs to the technical field of tunnel engineering excavation.
Background
The slurry hydraulic shield is one of the two most commonly used shields, and has many advantages when excavating tunnels crossing rivers, lakes and seas. The dregs formed by cutting the excavated surface by the cutter head are discharged in the form of slurry, so that the smoothness and durability of a slurry conveying pipeline are ensured, and the important effect on the engineering progress is achieved. Due to the limitation of a field, a slurry conveying pipeline often needs to turn, the motion direction of slurry at the turning position is changed, the wall of the pipeline is subjected to very large friction force and impact force under the action of the slurry, the phenomenon of pipe blockage and slurry leakage caused by pipeline damage sometimes occur, the construction period is easily prolonged, the pipeline is wasted, and the untreated slurry leakage can pollute the environment. From these points of view, the development of a high-permeability, high-durability slurry conveying pipeline with good wear resistance and impact resistance has obvious practical value.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems in the prior art, the utility model provides a high-throughput high-durability slurry conveying pipeline component which is used for improving the throughput of slurry and the durability of a pipeline, so that the construction progress is ensured, the pipe consumption is reduced, and the environmental pollution risk caused by slurry leakage is reduced.
In order to solve the problems, the utility model adopts the following technical scheme:
a high-throughput and high-durability slurry conveying pipeline component comprises two standard flanges and a bent pipe with curvature requirement, wherein the bent pipe is arranged between the standard flanges and is connected to a turning part of a slurry circulation system through the standard flanges; the elbow is characterized in that the outmost layer of the elbow is a steel pipe layer, an alpha-aluminum oxide inner liner layer and a polytetrafluoroethylene inner liner layer are sequentially arranged in the elbow, the alpha-aluminum oxide inner liner layer is tightly attached to the steel pipe layer, and the polytetrafluoroethylene inner liner layer is sprayed on the alpha-aluminum oxide inner liner layer.
Further, the standard flange is connected with the elbow through a butt weld or a fillet weld.
Further, the thickness of the steel pipe layer is 3-6 mm; the thickness of the alpha-aluminum oxide lining layer is 3-5 mm; the thickness of the polytetrafluoroethylene lining layer is 3-5 mm.
Further, the bending angle θ of the bent pipe ranges from 30 degrees to 150 degrees.
Further, the diameter of the elbow is the same as the diameter of the pipeline of the mud circulation system.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:
the friction of slurry on the bent pipe is reduced by arranging the polytetrafluoroethylene inner liner with extremely low friction coefficient; the hardness of the pipeline is increased by arranging the alpha-aluminum oxide lining layer, and the capability of the elbow in resisting the impact and friction of slurry is improved. The cost is not increased much, and the performance improvement effect is obvious.
Drawings
For a clearer explanation of the solution of the utility model, the following brief description of the drawings required for this solution is given:
FIG. 1 is a general schematic view of a high throughput and high durability mud delivery line component of the present invention;
FIG. 2 is a schematic cross-sectional view of an elbow of the utility model.
Detailed Description
The technical solutions in the implementation of the present invention will be clearly and completely described below with reference to fig. 1-2 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 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.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those described herein, and it will be apparent to those of ordinary skill in the art that the present invention may be practiced without departing from the spirit and scope of the present invention, and therefore the present invention is not limited to the examples disclosed below.
As shown in fig. 1-2, the high-throughput and high-durability slurry conveying pipeline component of the utility model comprises two standard flanges 1 and an elbow 2 with curvature requirement, which is arranged between the standard flanges 1, wherein the elbow 2 is connected to a turn of a slurry circulation system through the standard flanges 1, and the standard flanges 1 are connected with the elbow 2 through butt welding seams or fillet welding seams. The bending angle theta of the elbow 2 ranges from 90 degrees, and the diameter of the elbow 2 is the same as the diameter of the pipeline of the slurry circulation system.
The outmost steel pipe layer 3 that is of return bend 2 sets gradually alpha-aluminium sesquioxide inner liner 4 and polytetrafluoroethylene inner liner 5 in it, and alpha-aluminium sesquioxide inner liner 4 is closely laminated with steel pipe layer 3, and polytetrafluoroethylene inner liner 5 spraying is on alpha-aluminium sesquioxide inner liner 4.
In this embodiment, the thickness of the steel pipe layer 3 is 5mm, the thickness of the α -alumina lining layer 4 is 4mm, and the thickness of the polytetrafluoroethylene lining layer 5 is 4 mm.
In conclusion, although the embodiments of the present invention have been described, it should be understood that the above embodiments are exemplary and not to be construed as limiting the present invention, and those skilled in the art can make changes, modifications, substitutions and alterations to the above embodiments without departing from the principles and spirit of the present invention.
Claims (5)
1. The utility model provides a high durability mud conveying pipeline component of high trafficability characteristic which characterized in that: the device comprises two standard flanges (1) and an elbow (2) which is arranged between the standard flanges (1) and has curvature requirement, wherein the elbow (2) is connected to the turning part of a slurry circulation system through the standard flanges (1); elbow pipe (2) are outmost for steel pipe layer (3), have set gradually alpha-aluminium sesquioxide inner liner (4) and polytetrafluoroethylene inner liner (5) in it, alpha-aluminium sesquioxide inner liner (4) closely laminate with steel pipe layer (3), polytetrafluoroethylene inner liner (5) spraying in on alpha-aluminium sesquioxide inner liner (4).
2. A high throughput high durability mud delivery line structure as recited in claim 1, wherein: the standard flange (1) is connected with the elbow (2) through butt welding or fillet welding.
3. A high throughput high durability mud delivery line structure as recited in claim 1, wherein: the thickness of the steel pipe layer (3) is 3-6 mm; the thickness of the alpha-aluminum oxide inner liner layer (4) is 3-5 mm; the thickness of the polytetrafluoroethylene inner liner (5) is 3-5 mm.
4. A high throughput high durability mud delivery line structure as recited in claim 1, wherein: the bending angle theta of the bent pipe (2) ranges from 30 degrees to 150 degrees.
5. The high throughput, high durability mud delivery line structure of claim 4, wherein: the diameter of the elbow (2) is the same as the diameter of the pipeline of the mud circulation system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122240743.4U CN216201506U (en) | 2021-09-16 | 2021-09-16 | High-permeability and high-durability slurry conveying pipeline component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122240743.4U CN216201506U (en) | 2021-09-16 | 2021-09-16 | High-permeability and high-durability slurry conveying pipeline component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216201506U true CN216201506U (en) | 2022-04-05 |
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ID=80920501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122240743.4U Active CN216201506U (en) | 2021-09-16 | 2021-09-16 | High-permeability and high-durability slurry conveying pipeline component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216201506U (en) |
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2021
- 2021-09-16 CN CN202122240743.4U patent/CN216201506U/en active Active
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