CN111486273A - Pipeline structure and pipeline preparation method - Google Patents
Pipeline structure and pipeline preparation method Download PDFInfo
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- CN111486273A CN111486273A CN202010426558.1A CN202010426558A CN111486273A CN 111486273 A CN111486273 A CN 111486273A CN 202010426558 A CN202010426558 A CN 202010426558A CN 111486273 A CN111486273 A CN 111486273A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/56—Three layers or more
- B05D7/58—No clear coat specified
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
- F16L58/04—Coatings characterised by the materials used
- F16L58/10—Coatings characterised by the materials used by rubber or plastics
- F16L58/1054—Coatings characterised by the materials used by rubber or plastics the coating being placed outside the pipe
- F16L58/1072—Coatings characterised by the materials used by rubber or plastics the coating being placed outside the pipe the coating being a sprayed layer
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Pipeline Systems (AREA)
Abstract
The invention provides a pipeline structure and a pipeline preparation method, wherein the pipeline structure comprises a pipeline body, an anti-corrosion part coated outside the pipeline body and a detection assembly at least partially positioned in the anti-corrosion part, so that the detection assembly is used for detecting characteristic changes of the pipeline body, such as stress strain, corrosion, temperature and other characteristics, and the problem that the anti-corrosion pipeline is difficult to detect in the prior art is solved; this pipeline structure still possesses intelligent anticorrosive characteristic simultaneously, has realized the anticorrosive and detection integration to the pipeline body.
Description
Technical Field
The invention relates to the field of pipeline protection, in particular to a pipeline structure and a pipeline preparation method.
Background
At present, the in-service pipeline has long distance and large span, passes through various complex geological environments, and the running safety risk of the pipeline is increasingly severe. Despite careful care, accidents still occur after years of operation. The existing pipeline operation and maintenance engineers are faced with the problem of accurately evaluating the safety margin of the dangerous pipeline section.
For the detection of pipeline running defects, pipeline strain monitoring, weak magnetic detection, excavation nondestructive detection and the like are mainly adopted, wherein the strain monitoring is a common online real-time monitoring technology. At present, common outer wall anticorrosive coatings of anticorrosive pipelines comprise various types such as a sintered epoxy powder coating FBE, a three-layer polyethylene coating 3PE, a three-layer polypropylene coating, a liquid epoxy coating, an epoxy glass fiber reinforced plastic coating and the like, wherein most of the three-layer polyethylene coating 3PE is adopted.
If the strain is monitored accurately in real time, the distance between the strain and the pipe wall is smaller and better on the premise of ensuring insulativity, so that two outer layers (adhesive and polyethylene layers) of 3PE (polyethylene) are required to be peeled off, a stress test sheet is adhered to the bottom layer of the anticorrosive layer, a transmission lead is led out, and the damaged area of the anticorrosive layer is repaired by adopting a heat shrinkable sleeve joint coating process.
However, the above process damages the integrity of the original anticorrosive coating to cause corrosion hidden trouble, and the stripping process inevitably damages the bottom coating to a certain extent, thereby causing inaccurate stress monitoring under the insulating property. At present, no pipeline product which can meet the corrosion prevention requirement and meet the monitoring requirement at the same time exists.
The long-distance pipeline corrosion prevention technology in the prior art has the following technical problems:
although the problem of pipeline corrosion prevention is solved, a solution cannot be provided for monitoring the running condition of the pipeline at the same time, and needs to be solved additionally in the follow-up process;
in order to obtain accurate measurement, the existing pipeline monitoring and detecting technology needs to destroy the original pipeline coating, and although field repair is carried out, the potential corrosion hazard exists, and resource waste and environmental pollution are caused;
most of pipeline monitoring and detecting technologies need field installation operation, the field construction environment is poor, and the process quality cannot be well controlled;
the construction method has the problems of multiple processing links, high energy consumption, high cost and the like.
Disclosure of Invention
The invention mainly aims to provide a pipeline structure and a pipeline preparation method, and aims to solve the problem that the characteristic detection of an anti-corrosion pipe is difficult in the prior art.
In order to achieve the above object, according to one aspect of the present invention, there is provided a pipeline structure including: a pipe body; the anti-corrosion part is coated on the outer side of the pipeline body; and the detection assembly is at least partially positioned in the corrosion prevention part so as to detect the characteristic change of the pipeline body.
Further, the detection assembly includes: the detection chip is positioned inside the anti-corrosion part so as to detect the characteristic change of the pipeline body through the detection chip; the signal transmission joint is positioned on the outer side of the anticorrosion part; and the lead is used for connecting the detection chip and the signal transmission joint.
Further, the detection assembly comprises a plurality of detection chips, and the plurality of detection chips are arranged around the pipeline body.
Further, the detection assembly further comprises a flexible base band, and the plurality of detection chips are integrated on the flexible base band so as to be arranged around the pipeline body when the flexible base band is wound on the pipeline body.
Further, the flexible base tape is made of polyimide, or polyester, or epoxy resin, or epoxy fiberglass.
Further, the detection chip is a stress-strain sensing chip, a surface resistance test chip, an impedance detection chip or a temperature test chip.
Furthermore, the flexible base band comprises an annular band and a strip-shaped band, the annular band is sleeved on the pipeline body, one end of the strip-shaped band is connected with the annular band, and the other end of the strip-shaped band extends towards the end part of the pipeline body; the part of the lead connected with the signal outgoing connector is positioned on the strip-shaped belt.
Further, the anticorrosive part includes: the first anticorrosive layer is coated on the outer side of the pipeline body; the adhesive layer is coated on the outer side of the first anticorrosive layer; the second anticorrosive layer is coated on the outer side of the bonding layer; wherein at least part of the detection assembly is located within the adhesive layer.
Further, the first anticorrosive layer is made of epoxy resin, or olefin, or polyurethane, or polyurea; and/or, the adhesive layer is made of copolymer adhesive; and/or the second anticorrosive layer is made of polyolefin adhesive tape, epoxy glass fiber reinforced plastic or heat shrinkable sleeve.
Furthermore, a detection chip of the detection assembly is positioned between the adhesive layer and the second anticorrosive layer; alternatively, the detection chip of the detection assembly is positioned inside the adhesive layer.
Further, the adhesive layer comprises a first sub adhesive layer and a second sub adhesive layer, the detection chip of the detection assembly is located between the first sub adhesive layer and the second sub adhesive layer, and the maximum thickness of the first sub adhesive layer is larger than or equal to 30 microns.
Further, the pipeline structure further comprises a temperature detection component, and at least part of the temperature detection component is arranged in the corrosion prevention part to detect the temperature of the pipeline body.
According to another aspect of the present invention, there is provided a method for preparing a pipeline, which is suitable for the pipeline structure, the method comprising: spraying an anti-corrosion part on the outer side of the pipeline body; wherein, at the in-process of spraying anticorrosive portion, set up the determine module in the outside of pipeline body to make at least part of determine module be located anticorrosive portion, with the meeting an emergency through determine module detection pipeline body.
Further, the method of spraying the corrosion prevention part on the outer side of the pipe body includes: heating the pipe body to a predetermined temperature; and spraying an epoxy coating, an olefin coating, a polyurethane coating or a polyurea coating on the outer side of the pipeline body to form a first anticorrosive layer.
Further, after the first corrosion prevention layer is formed, the method of spraying the corrosion prevention part on the outer side of the pipe body further includes: spraying a copolymer adhesive on the outer side of the first anticorrosive layer to form a first sub-adhesive layer; arranging a detection assembly on the first sub-bonding layer; and spraying copolymer adhesive on the outer side of the first sub-adhesive layer to form a second sub-adhesive layer.
Further, after the second sub-adhesive layer is formed, the method of spraying the corrosion prevention part on the outer side of the pipe body further includes: a polyolefin layer is disposed on the outer side of the second sub-adhesive layer to form a second anticorrosive layer.
Further, before spraying the corrosion prevention part on the outer side of the pipe body, the pipe preparation method further includes: arranging a plurality of detection chips on a flexible base tape; and connecting each detection chip with the signal outgoing joint by using a lead so as to form a detection assembly.
By applying the technical scheme of the invention, the pipeline structure comprises the pipeline body, the anticorrosion part coated outside the pipeline body and the detection assembly at least partially positioned in the anticorrosion part, so that the characteristic change of the pipeline body is detected by the detection assembly, and the problem that the characteristic detection of the anticorrosion pipe is difficult in the prior art is solved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 shows a schematic structural view of an embodiment of a pipeline structure according to the invention;
fig. 2 shows a longitudinal section through the line construction in fig. 1.
Wherein the figures include the following reference numerals:
100. a pipeline structure;
10. a pipe body;
20. a corrosion prevention part; 21. a first anticorrosive layer; 22. a second anticorrosive layer; 23. an adhesive layer;
30. a detection component; 31. detecting a chip; 32. a signal outgoing connector; 33. a wire;
40. a flexible base band; 41. an endless belt; 42. a strip-shaped band;
50. and a data transmission device.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
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.
Referring to fig. 1 and 2, the pipeline structure 100 includes a pipeline body 10, an anticorrosion part 20, and a detection assembly 30; the corrosion prevention part 20 is coated outside the pipeline body 10; at least a portion of the sensing assembly 30 is located within the corrosion prevention part 20 to sense a characteristic change of the pipe body 10.
In the pipeline structure 100 of the present invention, the pipeline structure 100 includes a pipeline body 10, a corrosion prevention part 20 covering the outside of the pipeline body 10, and a detection assembly 30 at least partially located in the corrosion prevention part 20, so as to detect the characteristic change of the pipeline body 10 through the detection assembly, so as to solve the problem that it is difficult to perform characteristic detection on a corrosion-prevention pipe in the prior art.
The characteristic change specifically means a change in stress, a change in surface resistance, a change in impedance, a change in temperature, or the like of the pipe body 10.
During specific use, the pipeline structure 100 can provide real-time monitoring for the anti-corrosion coating and the pipeline in the whole pipeline operation period, such as temperature, stress, resistance or impedance change conditions and the like, timely early warning is carried out, the coating is ensured to be reliable, the pipeline is ensured to be safe, and anti-corrosion hidden dangers are eliminated. Therefore, the pipeline structure 100 in this embodiment can achieve intelligent monitoring, so as to achieve intelligent corrosion prevention.
Specifically, the detection assembly 30 includes a detection chip 31, a signal outgoing connector 32 and a wire 33, the detection chip 31 is located inside the corrosion prevention part 20 to detect a characteristic change of the pipe body 10 through the detection chip 31; the signal transmission connector 32 is positioned outside the corrosion prevention part 20; the lead wire 33 is used to connect the detection chip 31 and the signal transfer connector 32 so as to pass the strain of the corrosion prevention part 20 detected by the detection chip 31 through the signal transfer connector 32.
Optionally, the detection chip 31 is a flexible chip to overcome the installation defect existing in field construction, so that the installation of the detection assembly 30 is quick and simple.
Optionally, the detection assembly 30 includes a plurality of detection chips 31, and the plurality of detection chips 31 are arranged around the pipe body 10 so as to be able to detect the strain condition of the corrosion prevention part 20 everywhere. Preferably, the plurality of detection chips 31 is 2 to 12.
In this embodiment, there are 4 detection chips 31, and an included angle between two adjacent detection chips 31 is 90 degrees; the two opposite detection chips 31 are grouped, one detection chip 31 of each group is used for detection, and the other detection chip 31 is used as a spare chip.
In order to achieve the assembly of the plurality of sensing chips 31, the sensing assembly 30 further includes a flexible base tape 40, and the plurality of sensing chips 31 are integrated on the flexible base tape 40 such that the plurality of sensing chips 31 are arranged around the pipe body 10 when the flexible base tape 40 is wound on the pipe body 10.
Optionally, the flexible base tape 40 is made of polyimide, or polyester, or epoxy fiberglass.
Optionally, the detection chip 31 is a stress-strain sensing chip to detect the strain of the pipeline body 10; or, the detection chip 31 is a surface resistance test chip to detect the surface resistance of the pipeline body 10 through the surface resistance test chip; or, the detection chip 31 is an impedance detection chip to detect the surface impedance of the pipeline body 10 through the impedance detection chip; alternatively, the detection chip 31 is a temperature test chip to detect the surface temperature of the pipe body 10.
Preferably, since the pipe body 10 is strained generally at a position near its end, the stress-strain sensing chip is disposed at a position near its end of the pipe body 10; specifically, the minimum distance between the stress-strain sensing chip and the pipe end face of the pipe body 10 is 500mm to 1000 mm.
Optionally, the surface resistance testing chip, the impedance detecting chip and the temperature testing chip may be disposed at any position on the pipeline body 10 according to actual requirements.
In a specific implementation process, when the plurality of detection chips 31 are disposed, at least one detection chip 31 of the plurality of detection chips 31 is a stress-strain sensing chip, at least one detection chip 31 of the plurality of detection chips 31 is a surface resistance test chip, at least one detection chip 31 of the plurality of detection chips 31 is an impedance detection chip, and at least one detection chip 31 of the plurality of detection chips 31 is a temperature test chip.
Specifically, the flexible base band 40 includes an annular band 41 and a strip band 42, the annular band 41 is sleeved on the pipeline body 10, one end of the strip band 42 is connected with the annular band 41, and the other end of the strip band 42 extends towards the end of the pipeline body 10; the portion of the lead 33 connected to the signal outgoing terminal 32 is located on the strip 42.
Specifically, the minimum distance between the annular band 41 and the pipe-end face of the pipe body 10 is 500mm to 1000 mm; and/or the minimum distance between the signal outlet joint 32 and the end face of the pipe end of the pipe body 10 is 50mm to 100 mm.
Specifically, the corrosion prevention part 20 includes a first corrosion prevention layer 21, an adhesive layer 23, and a second corrosion prevention layer 22, and the first corrosion prevention layer 21 is coated on the outer side of the pipe body 10; the bonding layer 23 is coated on the outer side of the first anticorrosive layer 21; the second anticorrosive layer 22 is coated on the outer side of the bonding layer 23; wherein at least a portion of the sensing assembly 30 is located within the adhesive layer 23.
Optionally, the first corrosion protection layer 21 is made of epoxy, or olefin, or polyurethane, or polyurea.
Alternatively, the adhesive layer 23 is made of a copolymer adhesive.
Optionally, the second corrosion protection layer 22 is made of polyolefin tape, or epoxy glass reinforced plastic, or heat shrink.
Specifically, the detection chip 31 of the detection assembly 30 is located between the adhesive layer 23 and the second anticorrosive layer 22; alternatively, the detection chip 31 of the detection assembly 30 is located inside the adhesive layer 23; i.e. the flexible base tape 40 is located between the adhesive layer 23 and the second corrosion protection layer 22 or inside the adhesive layer 23.
Optionally, the maximum thickness of the corrosion protection part 20 is greater than or equal to 3.7 mm.
Optionally, the maximum thickness of the first corrosion protection layer 21 is greater than or equal to 150 μm.
Optionally, the maximum thickness of the adhesive layer 23 is greater than or equal to 170 μm.
Specifically, the adhesive layer 23 includes a first sub-adhesive layer and a second sub-adhesive layer, and the detection chip 31 of the detection assembly 30 is located between the first sub-adhesive layer and the second sub-adhesive layer.
Optionally, the maximum thickness of the first sub-adhesive layer is greater than or equal to 30 μm.
In the present embodiment, the pipeline structure 100 further includes a temperature detection part, at least a portion of which is disposed inside the corrosion prevention part 20 to detect the temperature of the pipe body 10. Optionally, the temperature detection component is a temperature measurement chip.
Optionally, the pipe body 10 is a steel pipe; the lead 33 is made of copper conductive material; the signal transmission connector 32 is a waterproof connector.
Specifically, the pipeline structure 100 further includes a data transmission device 50, wherein the data transmission device 50 is connected to the signal outgoing connector 32 to be connected to the detection chip 31 through the signal outgoing connector 32, so as to obtain the temperature detection and stress-strain test information of the detection chip 31; then, data processing is carried out by a control system, tensile or compressive strain data of the pipeline body 10 can be obtained, a strain curve is drawn, and the safety condition of the running pipeline is evaluated through simulation calculation and data comparison; in addition, a strain safety domain can be set, and when the strain value exceeds the safety domain, the system automatically alarms to prompt potential safety hazards.
The present invention also provides a method for preparing a pipeline, which is suitable for the pipeline structure 100, the method for preparing a pipeline includes: spraying an anti-corrosion part on the outer side of the pipeline body; wherein, at the in-process of spraying anticorrosive portion, set up the determine module in the outside of pipeline body to make at least part of determine module be located anticorrosive portion, with the meeting an emergency through determine module detection pipeline body.
Specifically, the pipe body is heated to a predetermined temperature; after the temperature of the pipeline body reaches a preset temperature, spraying an epoxy coating, or an olefin or polyurethane coating, or a polyurea coating on the outer side of the pipeline body to form a first anticorrosive layer. Optionally, the predetermined temperature is 160 ℃ to 220 ℃; the sprayed powder epoxy coating is an electrostatic sprayed powder epoxy coating.
Specifically, the pipeline body is subjected to rust removal before being heated, and after the rust removal is completed, the rust-removed pipeline body is heated.
The method of spraying the corrosion prevention part on the outside of the pipe body after forming the first corrosion prevention layer further includes: spraying a copolymer adhesive on the outer side of the first anticorrosive layer to form a first sub-adhesive layer; arranging a detection assembly on the first sub-bonding layer; and spraying copolymer adhesive on the outer side of the first sub-adhesive layer to form a second sub-adhesive layer. Specifically, after the first sub-adhesive layer is formed, the detection chip is disposed on the first sub-adhesive layer such that the detection chip is located between the first sub-adhesive layer and the second sub-adhesive layer.
The method of spraying the corrosion prevention part on the outside of the pipe body after forming the second sub adhesive layer further includes: a polyolefin layer is disposed on the outer side of the second sub-adhesive layer to form a second anticorrosive layer.
Specifically, before spraying the corrosion prevention part on the outer side of the pipe body, the pipe preparation method further includes: arranging a plurality of detection chips on a flexible base tape; and connecting each detection chip with the signal outgoing joint by using a lead so as to form a detection assembly. Optionally, a plurality of detection chips are uniformly arranged on the flexible base band; and connecting each detection chip with the signal transmission joint through a lead by adopting modes of etching, fusion welding and the like.
Specifically, cold-stick polyolefin tape may be used to secure the exposed wires and signal transmission contacts to the second corrosion barrier at the pipe ends.
Alternatively, the copolymer adhesive may be applied by a spray coating process or an extrusion winding process.
Optionally, in addition to the above heating, spraying, and winding, a normal temperature coating and cold winding method may be adopted, that is, the pipe body is not subjected to heating treatment, the detection assembly is installed after the first anticorrosive layer is dried, and the adhesive layer and the second anticorrosive layer may be replaced by processes such as cold winding of a polyolefin tape, coating of epoxy glass fiber reinforced plastic, or a heat shrinkable sleeve.
From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:
in the pipeline structure 100 of the present invention, the pipeline structure 100 includes a pipeline body 10, a corrosion prevention part 20 covering the outside of the pipeline body 10, and a detection assembly 30 at least partially located in the corrosion prevention part 20, so as to detect the characteristic change of the pipeline body 10 through the detection assembly, so as to solve the problem that it is difficult to perform characteristic detection on a corrosion-prevention pipe in the prior art.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
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.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (17)
1. A pipeline structure, comprising:
a pipe body (10);
the anticorrosion part (20), the anticorrosion part (20) covers the outside of the pipeline body (10);
a detection assembly (30), at least a portion of the detection assembly (30) being located within the corrosion prevention portion (20) to detect a change in a characteristic of the pipe body (10).
2. Pipeline structure according to claim 1, characterized in that the detection assembly (30) comprises:
a detection chip (31), wherein the detection chip (31) is positioned inside the anticorrosion part (20) so as to detect the characteristic change of the pipeline body (10) through the detection chip (31);
a signal outlet connection (32), the signal outlet connection (32) being located outside the corrosion protection part (20);
a lead (33), the lead (33) is used for connecting the detection chip (31) and the signal outgoing connector (32).
3. Pipeline structure according to claim 2, characterized in that said detection assembly (30) comprises a plurality of said detection chips (31), said plurality of detection chips (31) being arranged around said pipe body (10).
4. A pipeline structure according to claim 3, characterized in that the detection assembly (30) further comprises:
a flexible base tape (40) on which a plurality of the detection chips (31) are integrated to arrange the plurality of detection chips (31) around the pipe body (10) when the flexible base tape (40) is wound on the pipe body (10).
5. Pipeline structure according to claim 4, characterized in that the flexible base tape (40) is made of polyimide, or polyester, or epoxy resin, or epoxy fiberglass.
6. Pipeline structure according to claim 2, characterized in that the detection chip (31) is a stress-strain sensing chip, or a surface resistance test chip, or an impedance detection chip, or a temperature test chip.
7. Pipeline structure according to claim 4, characterized in that the flexible base strip (40) comprises an annular strip (41) and a strip (42), the annular strip (41) being fitted over the pipe body (10), one end of the strip (42) being connected to the annular strip (41), the other end of the strip (42) extending towards the end of the pipe body (10); the part of the lead (33) connected with the signal outgoing connector (32) is positioned on the strip-shaped belt (42).
8. The pipeline structure according to any one of claims 1 to 7, wherein the corrosion prevention part (20) includes:
the first anti-corrosion layer (21) is coated on the outer side of the pipeline body (10);
the adhesive layer (23) is coated on the outer side of the first anticorrosive layer (21);
the second anticorrosive layer (22), the second anticorrosive layer (22) is coated on the outside of the bonding layer (23);
wherein at least part of the detection assembly (30) is located within the adhesive layer (23).
9. Pipeline structure in accordance with claim 8,
the first anticorrosive layer (21) is made of epoxy resin, olefin, polyurethane or polyurea; and/or
The bonding layer (23) is made of a copolymer adhesive; and/or
The second anticorrosion layer (22) is made of polyolefin adhesive tape, epoxy glass fiber reinforced plastic or heat shrinkable sleeve.
10. Pipeline structure in accordance with claim 8,
the detection chip (31) of the detection assembly (30) is positioned between the adhesive layer (23) and the second anti-corrosion layer (22); or
The detection chip (31) of the detection assembly (30) is positioned inside the adhesive layer (23).
11. Pipeline structure in accordance with claim 8,
the adhesive layer (23) comprises a first sub adhesive layer and a second sub adhesive layer, a detection chip (31) of the detection assembly (30) is located between the first sub adhesive layer and the second sub adhesive layer, and the maximum thickness of the first sub adhesive layer is larger than or equal to 30 mu m.
12. The pipeline structure according to claim 1, further comprising:
a temperature detection part, at least a portion of which is disposed within the corrosion prevention part (20) to detect a temperature of the pipe body (10).
13. A method of preparing a pipeline suitable for use in the pipeline structure of any one of claims 1 to 12, the method comprising:
spraying an anti-corrosion part on the outer side of the pipeline body;
wherein, at the spraying anticorrosive part's in-process, set up detection assembly in the outside of pipeline body, so that detection assembly's at least part is located anticorrosive inside, with through detection assembly detects the strain of pipeline body.
14. The pipe producing method according to claim 13, wherein the method of spraying the corrosion prevention part on the outside of the pipe body includes:
heating the pipe body to a predetermined temperature;
and spraying an epoxy coating, or an olefin or polyurethane coating, or a polyurea coating on the outer side of the pipeline body to form a first anticorrosive layer.
15. The method for manufacturing a pipe according to claim 14, wherein the method for spraying a corrosion prevention part on the outside of the pipe body after forming the first corrosion prevention layer further comprises:
spraying a copolymer adhesive on the outer side of the first anticorrosive layer to form a first sub-adhesive layer;
disposing the detection assembly on the first sub-adhesive layer;
and spraying copolymer adhesive on the outer side of the first sub-adhesive layer to form a second sub-adhesive layer.
16. The method of manufacturing a pipe according to claim 15, wherein the method of spraying a corrosion prevention part on the outside of the pipe body after forming the second sub adhesive layer further comprises:
and arranging a polyolefin layer on the outer side of the second sub-adhesive layer to form a second anticorrosive layer.
17. The pipe producing method according to claim 13, wherein before the outside of the pipe body is sprayed with the corrosion prevention part, the pipe producing method further comprises:
arranging a plurality of detection chips on a flexible base tape;
and connecting each detection chip with a signal outgoing joint by using a lead so as to form the detection assembly.
Priority Applications (1)
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| CN113028293A (en) * | 2021-04-09 | 2021-06-25 | 吉林中科博能科技有限公司 | Oil pipeline convenient to real-time supervision |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113028293A (en) * | 2021-04-09 | 2021-06-25 | 吉林中科博能科技有限公司 | Oil pipeline convenient to real-time supervision |
| CN113028293B (en) * | 2021-04-09 | 2022-11-18 | 吉林中科博能科技有限公司 | Oil pipeline convenient to real-time supervision |
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