CN111828770B - Inner wall pre-repair pipeline for petroleum transportation - Google Patents

Inner wall pre-repair pipeline for petroleum transportation Download PDF

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Publication number
CN111828770B
CN111828770B CN202010639126.9A CN202010639126A CN111828770B CN 111828770 B CN111828770 B CN 111828770B CN 202010639126 A CN202010639126 A CN 202010639126A CN 111828770 B CN111828770 B CN 111828770B
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wall
pipeline
layer
repaired
overflow
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CN111828770A (en
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刘静生
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Shandong Mingfei Logistics Co ltd
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Ye Sainan
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/16Devices for covering leaks in pipes or hoses, e.g. hose-menders
    • F16L55/162Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe

Abstract

The invention discloses an inner wall pre-repaired pipeline for petroleum transportation, which belongs to the field of pipelines, and is characterized in that through the arrangement of a pre-repaired fluctuation ring layer, the pre-repaired fluctuation ring layer can deform in the petroleum transportation process, on one hand, the inner wall of a pipeline body is effectively protected from being broken due to long-term extrusion by petroleum, on the other hand, in the deformation process, a pipeline repairing agent in a liquid overflowing rod and graphene in a powder overflowing layer continuously overflow and are condensed on the inner wall of the pipeline body to form the pre-repaired layer, the pre-repaired layer has better prevention and repair effects on the cracks on the inner wall of the pipeline body, the surface of the pipeline body can be blocked in time when the cracks are generated due to long-term use, meanwhile, the pre-repaired layer doped with graphene powder has certain lubricity, so that the pipeline can maintain higher stability under the condition of deformation friction of the pre-repaired fluctuation ring layer, the pipe is not easy to be damaged by friction, and the inner wall of the pipe body can be prevented and repaired for a long time.

Description

Inner wall pre-repair pipeline for petroleum transportation
Technical Field
The invention relates to the field of pipelines, in particular to an inner wall pre-repairing pipeline for petroleum transportation.
Background
The oil pipeline (also called pipeline, pipeline) is composed of oil pipe and its accessories, and according to the requirements of technological process, it is equipped with correspondent oil pump unit, and designed and installed into a complete pipeline system for completing the tasks of oil material receiving, unloading and transferring.
The oil pipeline system, i.e. the pipeline system for transporting petroleum and petroleum products, is mainly composed of oil pipeline, oil transportation station and other auxiliary related equipments, is one of the main equipments in petroleum storage and transportation industry, and is also the most main transportation equipment for crude oil and petroleum products.
The pipes of oil pipelines are generally steel pipes, and are connected into long-distance pipelines by welding, flanges and other connecting devices, and valves are used for opening and closing control and flow regulation. The oil pipeline mainly comprises conveying processes such as isothermal conveying, heating conveying, sequential conveying and the like. The corrosion of the pipeline and how to prevent corrosion are one of the important links of pipeline maintenance. Oil pipelines have become one of the major means of transporting oil today and still have considerable potential for development in the future.
Petroleum pipeline is carrying out the oil transportation in-process, because the hydraulic action of oil, petroleum pipeline can receive great extrusion force effect, leads to the easy crackle that appears of petroleum pipeline inner wall, and the local damaged condition appears in the time of seriously takes place, and the fracture condition of petroleum pipeline inner wall is difficult in time to discover however, leads to the staff can not in time carry out timely restoration and maintenance to petroleum pipeline fracture department, has the possibility of oil leakage.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide an inner wall pre-repaired pipeline for petroleum transportation, which can effectively protect the inner wall of a pipeline body from being broken due to long-term extrusion by petroleum during the petroleum transportation process through the arrangement of a pre-repaired fluctuation ring layer, and on the other hand, the pipeline repairing agent in an overflow rod and graphene in a powder overflow layer continuously overflow and are condensed on the inner wall of the pipeline body during the deformation process to form the pre-repaired layer, so that the pre-repaired layer has better prevention and repair effects on the cracks on the inner wall of the pipeline body, the surface of the pipeline body can be blocked in time when the cracks are generated due to long-term use, and meanwhile, the pre-repaired layer doped with graphene powder has certain lubricity, so that the pipeline can maintain higher stability under the condition of deformation friction of the pre-repaired fluctuation ring layer, the pipe is not easy to be damaged by friction, and the inner wall of the pipe body can be prevented and repaired for a long time.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
An inner wall pre-repairing pipeline for petroleum transportation comprises a pipeline body, wherein a pre-repairing fluctuation ring layer is fixedly connected to the inner wall of the pipeline body, the pre-repairing fluctuation ring layer comprises a plurality of uniformly distributed inner convex layers, two adjacent inner convex layers are in contact with each other, the ends, far away from each other, of the two outermost inner convex layers are fixedly connected with the inner wall of the pipeline body, an outer concave ball is fixedly connected between the end, in contact with each other, of the two adjacent inner convex layers and the inner wall of the pipeline body, a spillover powder layer is fixedly filled in the inner convex layers, close to each other, a plurality of uniformly distributed spillover rods are fixedly connected between the spillover powder layer and the inner wall of the pipeline body, each spillover rod comprises two hard rods fixedly connected with the spillover powder layer and the inner wall of the pipeline body respectively and a flexible rod connected between the two hard rods, and in the petroleum transportation process through the arrangement of the pre-repairing fluctuation ring layer, the pre-repairing fluctuation ring layer can deform, on one hand, the inner wall of a pipeline body is effectively protected from being broken due to long-term extrusion of petroleum, on the other hand, in the deformation process, the pipeline repairing agent inside the overflow rod and graphene in the powder overflow layer continuously overflow and are condensed on the inner wall of the pipeline body to form the pre-repairing layer, the pre-repairing layer has a better effect of preventing and repairing cracks on the inner wall of the pipeline body, the surface of the pipeline body can be blocked in time when cracks are generated due to long-term use, meanwhile, the pre-repairing layer doped with graphene powder has certain lubricity, the pipeline body can maintain higher stability under the condition of deformation and friction of the pre-repairing fluctuation ring layer, and is not easy to damage due to friction, and further the pipeline body can play a long-term preventing and repairing role on the inner wall of the pipeline body.
Further, protruding layer, flexible pole and flash powder layer are elastic material and make, make it under the extrusion of the oil of transportation, certain deformation can take place for the three homoenergetic, on the one hand, it is difficult for being extruded for a long time by the oil and take place to break effectively to protect pipeline body inner wall, on the other hand, the three is taking place deformation in-process, can make its inside pipeline healant and graphite alkene constantly spill over, and condense at pipeline body inner wall, thereby effectively protect pipeline body inner wall, make its surface can in time be blocked when using for a long time and producing the crack, reach the effect of selfreparing.
Furthermore, the overflow powder layer is of a porous structure, so that the overall structural strength of the pre-repaired fluctuation ring layer can be effectively improved, the resistance effect of the pre-repaired fluctuation ring layer to the transported oil pressure is better, the protection effect on the inner wall of the pipeline body is more obvious, the graphene powder is filled in pores of the overflow powder layer, and in the deformation process of the pre-repaired fluctuation ring layer emission tube, the graphene powder can continuously fall from the overflow powder layer, so as to fall into gaps of the overflow rod and be scattered on the surface of the pipeline repairing agent overflowing from the overflow rod, so that the stability of the surface of the pipeline repairing agent can be effectively inhibited, the pipeline repairing agent is not easy to flow greatly in the deformation process of the pre-repaired fluctuation ring layer, and is uniformly laid on the inner wall of the pipeline body to form the pre-repaired layer, the prevention and repair effect on cracks on the inner wall of the pipeline body is better, and the pre-repaired layer of the graphene powder is doped at the same time, has certain lubricity, so that the corrugated ring is not easily damaged under the condition of deformation friction of the pre-repaired undulating ring layer.
Further, the flexible rod is of a hollow tubular structure, and a pipeline repairing agent is filled in the flexible rod.
Further, the equal activity of inner wall is inlayed and is had a plurality of evenly distributed's embedded ball about the flexible rod, the one end that the flexible rod kept away from each other is opened and is dug and has a plurality ofly and embedded closed hole that move the ball corresponding, embedded ball is penetrating hole structure, and the pipeline repairing agent of being convenient for passes embedded ball and outwards spills over through closed hole, and just embedded ball communicates with each other with closed hole, receives the extrusion in-process at the pre-repair fluctuation ring layer, and the flexible rod takes place deformation, and embedded ball can produce the squeezing action to the closed hole rather than corresponding for closed hole is propped open, and the pipeline repairing agent of being convenient for inside spills over.
Furthermore, a plurality of heavy extrusion balls are placed inside the flexible rod, and the heavy extrusion balls are respectively positioned between the left and right adjacent embedded movable balls.
Further, the diameter of the extrusion heavy ball is larger than the distance between the outer edge of the embedded moving ball and the inner wall of the flexible rod, the extrusion heavy ball can fall down under the action of gravity to be clamped between the inner wall of the flexible rod and the embedded moving ball, and when the flexible rod deforms, the extrusion of the extrusion heavy ball on the embedded moving ball can be driven, so that the closed hole is expanded to a greater degree, and the overflow of the pipeline repairing agent inside the closed hole is facilitated.
Further, the extrusion heavy ball includes the counter weight inner core and wraps up the outer inoxidizing coating in counter weight inner core outer end, a plurality of evenly distributed's of counter weight inner core outer end fixedly connected with connecting rod, connecting rod outer end fixedly connected with evagination hemisphere, evagination hemisphere tip extends to the outer inoxidizing coating outside, and the counter weight inner core is as the counter weight for the extrusion heavy ball has certain dead weight, can be in decurrent stress condition all the time, is convenient for produce the extrusion force to embedded ball, and outer inoxidizing coating is used for protecting embedded ball, makes embedded ball be difficult for being extruded the damage, and the evagination hemisphere can effectively increase the holistic frictional force of extrusion heavy ball surface, when being convenient for it and embedded ball contact, produces the extrusion force to embedded ball.
Furthermore, the part of the convex hemisphere, which is positioned outside the outer protective layer, is provided with a rough layer, so that when the extrusion heavy ball is in contact with the embedded moving ball to be extruded, the phenomenon of slippage between the extrusion heavy ball and the embedded moving ball is not easy to occur, and the closed hole is conveniently and smoothly opened.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) by the arrangement of the pre-repaired fluctuation ring layer, the pre-repaired fluctuation ring layer can deform in the petroleum transportation process, on one hand, the inner wall of the pipeline body is effectively protected from being broken due to long-term extrusion of petroleum, on the other hand, in the deformation process, the pipeline repairing agent in the overflow rod and the graphene in the powder overflow layer continuously overflow and are condensed on the inner wall of the pipeline body to form a pre-repairing layer, the prevention and repair effect on the cracks on the inner wall of the pipeline body is better, so that the surface of the pipeline body can be plugged in time when the cracks are generated due to long-term use, meanwhile, the pre-repairing layer doped with graphene powder has certain lubricity, so that under the condition of deformation friction of the pre-repairing undulating ring layer, can maintain higher stability, be difficult for damaging because of the friction, and then make it can play long-term prevention restoration effect to pipeline body inner wall.
(2) The convex layer in, flexible pole and excessive powder layer are elastic material and make, make it under the extrusion of the oil of transportation, certain deformation can all take place for the three, on the one hand, effectively protect pipeline body inner wall to be difficult for being extruded for a long time by the oil and take place to break, on the other hand, the three is taking place the deformation in-process, can make its inside pipeline healant and graphite alkene constantly spill over, and condense at pipeline body inner wall, thereby effectively protect pipeline body inner wall, make its surface use for a long time and can in time be blocked when producing the crack, reach the effect of selfreparing.
(3) The overflow powder layer is of a porous structure, the overall structural strength of the pre-repair fluctuation ring layer can be effectively improved, the resistance effect of the overflow powder layer on the transported oil pressure is better, the protection effect on the inner wall of the pipeline body is more obvious, graphene powder is filled in pores of the overflow powder layer, and in the deformation process of the pre-repair fluctuation ring layer transmitting tube, the graphene powder can continuously fall from the overflow powder layer, so as to fall into gaps of the overflow rod and be scattered on the surface of the pipeline repairing agent overflowing from the overflow rod, so that the stability of the surface of the pipeline repairing agent can be effectively inhibited, the graphene powder is not easy to flow greatly in the deformation process of the pre-repair fluctuation ring layer, and then the graphene powder is uniformly paved on the inner wall of the pipeline body to form the pre-repair layer, the prevention and repair effect on cracks on the inner wall of the pipeline body is better, and the pre-repair layer of the graphene powder is doped at the same time, has certain lubricity, so that the corrugated ring is not easily damaged under the condition of deformation friction of the pre-repaired undulating ring layer.
(4) The flexible rod is of a hollow tubular structure, and the interior of the flexible rod is filled with a pipeline repairing agent.
(5) The inner wall all activity is inlayed about the flexible rod and is had a plurality of evenly distributed's embedded ball, the one end that the flexible rod kept away from each other is opened and is dug and has a plurality ofly and embedded ball corresponding closed hole, embedded ball is penetrating hole structure, it outwards spills over through closed hole to be convenient for pipeline repair agent passes embedded ball, and embedded ball communicates with each other with closed hole, receive the extrusion process at the pre-repair fluctuation ring layer, the flexible rod takes place deformation, embedded ball can produce the squeezing action rather than the closed hole that corresponds, make closed hole propped open, be convenient for its inside pipeline repair agent to spill over.
(6) A plurality of extrusion heavy balls are placed inside the flexible rod and are respectively positioned between two adjacent left and right embedded movable balls.
(7) The diameter of the extrusion heavy ball is greater than the distance between the outer edge of the embedded moving ball and the inner wall of the flexible rod, the extrusion heavy ball can fall down to be clamped between the inner wall of the flexible rod and the embedded moving ball due to the action of gravity, and when the flexible rod deforms, the extrusion of the extrusion heavy ball on the embedded moving ball can be driven, so that the closed hole is expanded to a greater extent, and the overflow of the pipeline repairing agent inside the closed hole is facilitated.
(8) Extrusion heavy ball includes the counter weight inner core and wraps up the outer inoxidizing coating in counter weight inner core outer end, a plurality of evenly distributed's of counter weight inner core outer end fixedly connected with connecting rod, connecting rod outer end fixedly connected with evagination hemisphere, evagination hemisphere tip extends to the outer inoxidizing coating outside, the counter weight inner core is as the counter weight, make extrusion heavy ball have certain dead weight, can be in decurrent stress state all the time, be convenient for produce the extrusion force to embedded ball, outer inoxidizing coating is used for protecting embedded moving ball, make embedded moving ball be difficult for being extruded the damage, evagination hemisphere can effectively increase the holistic frictional force of extrusion heavy ball surface, when being convenient for it and embedded moving ball contact, produce the extrusion force to embedded moving ball.
(9) The part of the convex hemisphere outside the outer protective layer is provided with a rough layer, so that when the extrusion heavy ball is in contact with the embedded movable ball to be extruded, the phenomenon of slippage between the extrusion heavy ball and the embedded movable ball is not easy to occur, and the closed hole is conveniently and smoothly propped open.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic diagram of a pre-repair relief ring layer portion according to the present invention;
FIG. 3 is a schematic view of a portion of the inner wall of the pipe body forming a pre-repair layer according to the present invention;
FIG. 4 is a schematic view of the spill rod of the present invention;
fig. 5 is a schematic view of the structure of the extruded heavy ball of the present invention.
The reference numbers in the figures illustrate:
the pipeline comprises a pipeline body 1, a pre-repaired fluctuation ring layer 2, an inner convex layer 21, an outer concave ball 22, an overflow powder layer 3, an overflow rod 4, a hard rod 41, a flexible rod 42, an inner embedded dynamic ball 5, a closed hole 6, an extrusion heavy ball 7, a counterweight inner core 71, an outer protective layer 72, a connecting rod 81 and an outer convex hemisphere 82.
Detailed Description
The drawings in the embodiments of the invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
referring to fig. 1, an inner wall pre-repairing pipeline for petroleum transportation comprises a pipeline body 1, a pre-repairing undulating ring layer 2 is fixedly connected to the inner wall of the pipeline body 1, referring to fig. 2, the pre-repairing undulating ring layer 2 comprises a plurality of inner convex layers 21 which are uniformly distributed, two adjacent inner convex layers 21 are mutually contacted, the ends, far away from each other, of the two outer convex layers 21 are fixedly connected with the inner wall of the pipeline body 1, an outer concave ball 22 is fixedly connected between the end, mutually contacted, of the two adjacent inner convex layers 21 and the inner wall of the pipeline body 1, an overflow powder layer 3 is fixedly filled in the inner convex layers 21, close to each other, a plurality of overflow liquid rods 4 which are uniformly distributed are fixedly connected between the overflow powder layer 3 and the inner wall of the pipeline body 1, the overflow powder layer 3 is of a porous structure, the overall structural strength of the pre-repairing undulating ring layer 2 can be effectively improved, and the resistance effect of the pre-repairing undulating ring layer 2 to the pressure of the petroleum to be transported is better, the inner wall of the pipeline body 1 is protected more obviously, the pores of the overflow powder layer 3 are filled with graphene powder, and in the deformation process of the launching tube of the pre-repair fluctuation ring layer 2, please refer to fig. 3, wherein a represents a pre-repair layer, the graphene powder can continuously fall from the overflow powder layer 3, and then fall into the pores of the overflow rod 4, and then fall on the surface of the pipeline repairing agent overflowing from the overflow rod 4, so that the stability of the surface of the pipeline repairing agent can be effectively inhibited, the pipeline repairing agent is not easy to generate larger flow in the deformation process of the pre-repair fluctuation ring layer 2, and then the pipeline repairing agent is uniformly paved on the inner wall of the pipeline body 1 to form the pre-repair layer, the pre-repair layer with the graphene powder has better prevention and repair effect on the cracks on the inner wall of the pipeline body 1, and simultaneously, the pre-repair layer with certain lubricity is provided, so that under the condition of the friction of the pre-repair fluctuation ring layer 2, is not easy to be damaged.
Referring to fig. 4, the overflow rod 4 includes two hard rods 41 fixedly connected to the overflow powder layer 3 and the inner wall of the pipeline body 1, and a flexible rod 42 connected between the two hard rods 41, and the inner convex layer 21, the flexible rod 42, and the overflow powder layer 3 are made of elastic materials, so that under the extrusion action of the transported oil, the three can deform to a certain extent, on one hand, the inner wall of the pipeline body 1 is effectively protected from being broken due to long-term extrusion of the oil, on the other hand, in the deformation process, the pipeline repairing agent and graphene inside the pipeline body can continuously overflow and condense on the inner wall of the pipeline body 1, thereby effectively protecting the inner wall of the pipeline body 1, and the surface of the pipeline body can be blocked in time when cracks are generated due to long-term use, thereby achieving the self-repairing effect.
The flexible rod 42 is of a hollow tubular structure, the interior of the flexible rod 42 is filled with a pipeline repairing agent, the left inner wall and the right inner wall of the flexible rod 42 are movably embedded with a plurality of embedded movable balls 5 which are uniformly distributed, one end of the flexible rod 42 which is far away from each other is provided with a plurality of closed holes 6 which correspond to the embedded movable balls 5, the embedded movable balls 5 are of a through hole structure, the pipeline repairing agent can conveniently penetrate through the embedded movable balls 5 and overflow out through the closed holes 6, the embedded movable balls 5 are communicated with the closed holes 6, the flexible rod 42 deforms in the process of extruding the pre-repairing fluctuating ring layer 2, the embedded movable balls 5 can extrude the corresponding closed holes 6, the closed holes 6 are expanded, the pipeline repairing agent in the flexible rod is convenient to overflow, a plurality of extrusion heavy balls 7 are placed in the flexible rod 42, the extrusion heavy balls 7 are respectively positioned between the left and right adjacent embedded movable balls 5, the diameter of the extrusion heavy balls 7 is larger than the distance between the outer edge of the embedded movable balls 5 and the inner wall of the flexible rod 42, the extrusion heavy ball 7 can fall down to be clamped between the inner wall of the flexible rod 42 and the embedded moving ball 5 due to the action of gravity, and when the flexible rod 42 deforms, the extrusion of the extrusion heavy ball 7 on the embedded moving ball 5 can be driven, so that the expanded degree of the closed hole 6 is larger, and the overflow of the pipeline repairing agent inside the closed hole is facilitated.
Referring to fig. 5, the extrusion heavy ball 7 includes a balance weight inner core 71 and an outer protective layer 72 wrapped on the outer end of the balance weight inner core 71, the outer end of the balance weight inner core 71 is fixedly connected with a plurality of connecting rods 81 which are uniformly distributed, the outer end of the connecting rod 81 is fixedly connected with an outer convex hemisphere 82, the end portion of the outer convex hemisphere 82 extends to the outer side of the outer protective layer 72, the balance weight inner core 71 is used as a balance weight, so that the extrusion heavy ball 7 has a certain self weight and can be always in a downward stress state, thereby facilitating the extrusion force to the inner embedded moving ball 5, the outer protective layer 72 is used for protecting the inner embedded moving ball 5, thereby preventing the inner embedded moving ball 5 from being damaged by extrusion, the outer convex hemisphere 82 can effectively increase the friction force of the whole outer surface of the extrusion heavy ball 7, thereby facilitating the extrusion force to the inner embedded moving ball 5 when the extrusion heavy ball contacts with the inner embedded moving ball 5, the outer protective layer 82 is provided with a rough layer, thereby enabling the extrusion heavy ball 7 to contact with the inner embedded moving ball 5, the phenomenon of slippage between the extrusion heavy ball 7 and the embedded moving ball 5 is not easy to occur, and the closed hole 6 is conveniently and smoothly spread.
Through the arrangement of the pre-repaired fluctuation ring layer 2, the pre-repaired fluctuation ring layer 2 can deform in the petroleum transportation process, on one hand, the inner wall of the pipeline body 1 is effectively protected from being broken due to long-term extrusion of petroleum, on the other hand, in the deformation process, the pipeline repairing agent in the overflow rod 4 and the graphene in the overflow powder layer 3 continuously overflow and are condensed on the inner wall of the pipeline body 1 to form a pre-repairing layer, the prevention and repair effect on the cracks on the inner wall of the pipeline body 1 is better, so that the surface of the pipeline body can be plugged in time when the cracks are generated due to long-term use, meanwhile, the pre-repairing layer doped with graphene powder has certain lubricity, so that under the condition of deformation friction of the pre-repairing fluctuating ring layer 2, can maintain higher stability, be difficult for damaging because of the friction, and then make it can play long-term prevention restoration effect to 1 inner wall of pipeline.
The above; but are merely preferred embodiments of the invention; the scope of the invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; the technical scheme and the improved concept of the invention are equally replaced or changed; are intended to be covered by the scope of the present invention.

Claims (7)

1. The utility model provides an inner wall is restoreed pipeline in advance for oil transportation, includes pipeline body (1), its characterized in that: the inner wall of the pipeline body (1) is fixedly connected with a pre-repairing fluctuation ring layer (2), the pre-repairing undulating ring layer (2) comprises a plurality of inner convex layers (21) which are uniformly distributed, two adjacent inner convex layers (21) are mutually contacted, the ends, far away from each other, of the two outermost inner convex layers (21) are fixedly connected with the inner wall of the pipeline body (1), an outer concave ball (22) is fixedly connected between the end, mutually contacted, of the two adjacent inner convex layers (21) and the inner wall of the pipeline body (1), the inner parts of the inner convex layers (21) are fixedly filled with powder overflow layers (3) which are close to each other, a plurality of evenly distributed overflow rods (4) are fixedly connected between the overflow powder layer (3) and the inner wall of the pipeline body (1), the overflow rod (4) comprises two hard rods (41) which are fixedly connected with the overflow powder layer (3) and the inner wall of the pipeline body (1) respectively and a flexible rod (42) connected between the two hard rods (41); a plurality of embedded movable balls (5) which are uniformly distributed are movably embedded in the left inner wall and the right inner wall of the flexible rod (42), a plurality of closed holes (6) corresponding to the embedded movable balls (5) are formed in one end, away from each other, of the flexible rod (42), the embedded movable balls (5) are of a through hole structure, and the embedded movable balls (5) are communicated with the closed holes (6); a plurality of heavy extrusion balls (7) are placed inside the flexible rod (42), and the heavy extrusion balls (7) are respectively positioned between two adjacent left and right embedded movable balls (5).
2. The pre-repaired inner wall pipeline for petroleum transportation according to claim 1, characterized in that: the inner convex layer (21), the flexible rod (42) and the overflow powder layer (3) are all made of elastic materials.
3. The pre-repaired inner wall pipeline for petroleum transportation according to claim 2, characterized in that: the overflow powder layer (3) is of a porous structure, and graphene powder is filled in pores of the overflow powder layer (3).
4. The pre-repaired inner wall pipeline for petroleum transportation according to claim 1, characterized in that: the flexible rod (42) is of a hollow tubular structure, and a pipeline repairing agent is filled in the flexible rod (42).
5. The pre-repaired inner wall pipeline for petroleum transportation according to claim 1, characterized in that: the diameter of the extrusion heavy ball (7) is larger than the distance between the outer edge of the embedded dynamic ball (5) and the inner wall of the flexible rod (42).
6. The pre-repaired inner wall pipeline for petroleum transportation according to claim 5, characterized in that: extrusion heavy ball (7) include counter weight inner core (71) and wrap up at outer inoxidizing coating (72) of counter weight inner core (71) outer end, a plurality of evenly distributed's of counter weight inner core (71) outer end fixedly connected with connecting rod (81), connecting rod (81) outer end fixedly connected with evagination hemisphere (82), evagination hemisphere (82) tip extends to outer inoxidizing coating (72) outside.
7. The pre-repaired inner wall pipeline for petroleum transportation according to claim 6, characterized in that: the part of the convex hemisphere (82) outside the outer protective layer (72) is provided with a rough layer.
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