CN106148968A - A kind of cathode protecting process and device - Google Patents
A kind of cathode protecting process and device Download PDFInfo
- Publication number
- CN106148968A CN106148968A CN201610635510.5A CN201610635510A CN106148968A CN 106148968 A CN106148968 A CN 106148968A CN 201610635510 A CN201610635510 A CN 201610635510A CN 106148968 A CN106148968 A CN 106148968A
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- Prior art keywords
- concrete
- pipeline
- tubing
- anode
- source
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Classifications
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
- C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
- C23F13/06—Constructional parts, or assemblies of cathodic-protection apparatus
- C23F13/08—Electrodes specially adapted for inhibiting corrosion by cathodic protection; Manufacture thereof; Conducting electric current thereto
- C23F13/16—Electrodes characterised by the combination of the structure and the material
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F2213/00—Aspects of inhibiting corrosion of metals by anodic or cathodic protection
- C23F2213/30—Anodic or cathodic protection specially adapted for a specific object
- C23F2213/32—Pipes
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Prevention Of Electric Corrosion (AREA)
Abstract
The invention provides a kind of cathode protecting process and device; belong to impressed current cathodic protection field; cathode protecting process includes: step S100, arrange a layer concrete anode at the outer surface of pipeline, and pipeline includes tubing and insulating barrier, and insulating barrier is positioned at the inner surface of tubing；Step S200, the positive pole of dc source is electrically connected with concrete anode, the negative pole of dc source is electrically connected with the tubing in pipeline；Cathode protection device includes concrete anode, dc source and pipeline, and concrete anode is arranged on the outer surface of pipeline, and tubing is connected with the negative electricity of dc source, and concrete anode electrically connects with the positive pole of dc source.The simple in construction of the present invention, effectively can form protection to the tubing in pipeline, thus extend its service life.
Description
Technical field
The present invention relates to impressed current cathodic protection field, in particular to a kind of cathode protecting process and device.
Background technology
Conveyance conduit is in the erosion environment condition of complexity mostly, and the medium being carried also more to be corrosive, thus pipeline
May be corroded.Once pipeline is corroded perforation, i.e. causes the accident such as pipeline burst, leakage, thus causes safety and environment
Harm, causes huge economic loss.It is therefore prevented that corrosive pipeline is the important content of pipeline engineering.Pipe cathode protects skill
Art constantly improves, and is connected tubing with additional power source negative pole, makes tubing become negative electrode, and then reaches the purpose of protective conduit.
Inventor finds under study for action, and existing guard method at least has the disadvantage in that the sun of existing guard method
Electrode structure is complicated, easily loss and its character operationally between slightly long when just unstable.
Content of the invention
It is an object of the invention to provide a kind of cathode protecting process, the anode construction to improve existing guard method is multiple
Problem miscellaneous and that be lost and can not work long hours.
The present invention also aims to provide a kind of cathode protection device, the anode construction to improve existing guard method is multiple
The problem being lost and can not working long hours miscellaneous, easy.
The present invention is achieved in that
Based on the first above-mentioned purpose, the invention provides a kind of cathode protecting process, the method includes:
Step S100, arranging one layer of described concrete anode at the outer surface of pipeline, described pipeline includes tubing and insulation
Layer, described insulating barrier is positioned at the inner surface of described tubing；
Step S200, the positive pole of dc source is electrically connected with described concrete anode, by the negative pole of described dc source
Electrically connect with the tubing in described pipeline.
The cathode protecting process that the present invention provides implements simple and convenient, simple in construction, and can be effectively in pipeline
Tubing protect, make the tubing in pipeline it can be avoided that corroded by environmental attack medium, thus extend making of tubing
With the life-span, provide pipe structure durability cover layer, cost can be substantially reduced while obtaining preferable protected effect.
Further, in described step S100, described concrete anode includes concrete substrate and carbon fibre fabric net, first
Outer surface at described pipeline arranges one layer of carbon fibre fabric net, then described concrete substrate is poured into described carbon fiber and knits
Thing is online.
Carbon fibre fabric net not only possesses good mechanical property, and its electric conductivity is good, corrosion-resistant, electrochemical properties
It close to inert metal, is possible not only to transmit impressed current, and service life is long；Carbon fibre fabric net is applicable to the difference of structure
Shape, different parts, be laid on and need structural region to be protected, and its area coverage is big, can transmit cathodic protection current uniformly,
Matrix crack performance, the adhesive property between Concrete Structure matrix and pipeline can also be improved simultaneously.
Further, in described step S100: described carbon fibre fabric net is provided with multilayer, adjacent described carbon fiber is knitted
It is provided with described concrete substrate between thing net.
Multi-layer concrete matrix and multilayer carbon fibre fabric net form a kind of nearly spacing mounting means after being crisscross arranged so that
Structure is in the voltage gradient of anode, can improve cathodic protection efficiency.
Further, it is online that the mode that the employing of described concrete substrate is sprayed arranges carbon fibre fabric.
The mode using injection can improve the density of concrete substrate, Concrete Structure anode and carbon fibre fabric net
Between adhesive property.
Based on the second above-mentioned purpose, present invention also offers a kind of cathode protection device, including concrete anode, direct current
Power supply and pipeline, described pipeline includes tubing and insulating barrier, and described insulating barrier is positioned at the inner surface of described tubing, described concrete
Anode is arranged on the outer surface of described pipeline, and in described pipeline, tubing is connected with the negative electricity of described dc source, described mixed
Solidifying soil anode electrically connects with the positive pole of described dc source.
The cathode protection device that the present invention provides is formed cathodic protection system by concrete anode, pipeline and dc source,
Concrete anode is done anode, it is not necessary to extra anode, simple in construction, and owing to concrete anode is directly cast in pipeline appearance
Face, installs very convenient, and area coverage is very big simultaneously, and such tubing can be protected comprehensively so that it is service life increases, pipe
Material is completely wrapped after being connected with dc source again, it is possible to reduce the consumption of electric energy, thus reduces waste of energy.
Further, described concrete anode includes the concrete substrate using fine aggregate concrete to make.
Fine aggregate concrete has the advantages such as high-strength, cracking resistance, anticorrosive, good endurance, fire prevention, designability are strong, is suitable for
The clad material of structure and structural strengthening in thin-wall construction or corrosion resistant member and adverse circumstances.
Further, described concrete anode also includes carbon fibre fabric net, and described carbon fibre fabric net is installed on described
Pipeline external surface, described carbon fibre fabric net is positioned between described pipeline and described concrete substrate.
Carbon fibre fabric net not only possesses good mechanical property, and its electric conductivity is good, corrosion-resistant, electrochemical properties
It close to inert metal, is possible not only to transmit impressed current, and service life is long；Carbon fibre fabric net is applicable to the difference of structure
Shape, different parts, be laid on and need structural region to be protected, and its area coverage is big, can transmit cathodic protection current uniformly,
The cracking resistance of concrete substrate can also be improved simultaneously, make concrete substrate more firm with what pipeline bondd.
Further, described pipeline also includes concrete, and described tubing includes many longitudinal reinforcements and Duo Gen stirrup, many
Described longitudinal reinforcement is connected with the negative pole of described dc source respectively, the many described stirrup negative poles with described dc source respectively
Connecting, many described longitudinal reinforcement being provided at circumferentially spaced along described stirrup, many described stirrups are along the length of described longitudinal reinforcement
Degree direction interval is arranged, and described concrete is cast in described tubing and forms reinforced concrete pipiline.
Many longitudinal reinforcements and Duo Gen stirrup make the structure of pipeline more stable, meanwhile, many longitudinal reinforcements respectively with
The negative pole of described dc source connects, and many stirrups are connected with the negative pole of described dc source respectively, can to longitudinal reinforcement with
Stirrup forms and more comprehensively protects.
Further, adjacent described longitudinal reinforcement is electrically connected by wire.
For measuring the electrical connectivity between longitudinal reinforcement.
Further, described cathode protection device also includes control system, and described control system is connected to described direct current
Between the negative pole in source and described tubing.
Direct current generator can be controlled by control system so that it is keeping lasting output, being periodically adjusted can
With effective consumption reducing electric energy, tubing can also be monitored with timed unit, meter can be observed by control device
Calculate the extent of deterioration of tubing.
Compared with prior art, the present invention realizes providing the benefit that:
The cathode protecting process that the present invention provides implements simple and convenient, simple in construction, and can be effectively in pipeline
Tubing protect, make the tubing in pipeline it can be avoided that corroded by environmental attack medium, thus extend making of tubing
Use the life-span.
The cathode protection device that the present invention provides is formed cathodic protection system by concrete anode, pipeline and dc source,
Concrete anode is done anode, it is not necessary to extra anode, simple in construction, and owing to concrete anode casts directly over the table of pipeline
Face, installs very convenient, and area coverage is very big simultaneously, and the tubing in such pipeline can be protected comprehensively so that it is use the longevity
Life increases, and tubing is completely wrapped after being connected with dc source again, it is possible to reduce the consumption of electric energy, thus reduces waste of energy.
Brief description
Fig. 1 shows the flow chart of the cathode protecting process that the present invention provides；
Fig. 2 shows the schematic diagram of a kind of cathode protection device that the embodiment of the present invention 1 provides；
Fig. 3 shows the schematic diagram of the another kind of cathode protection device that the embodiment of the present invention 1 provides.
In figure:
Longitudinal reinforcement 101；Stirrup 102；Tubing 103；Concrete 104；Concrete substrate 105；Carbon fibre fabric net 106；
Dc source 107；Control system 108；Concrete anode 109.
Detailed description of the invention
Conveyance conduit is in the erosion environment condition of complexity mostly, and the medium being carried also more to be corrosive, thus pipeline
May be corroded.Once pipeline is corroded perforation, i.e. causes the accident such as pipeline burst, leakage, thus causes safety and environment
Harm, causes huge economic loss.It is therefore prevented that corrosive pipeline is the important content of pipeline engineering.Pipe cathode protects skill
Art constantly improves, and is connected tubing with additional power source negative pole, makes tubing become negative electrode, and then reaches the purpose of protective conduit.Send out
A person of good sense finds under study for action, existing guard method at least have the disadvantage in that the anode construction of existing guard method complicated,
Easily loss and its character operationally between slightly long when just unstable.
In order to make the problems referred to above be improved, the invention provides a kind of cathode protecting process, the method includes: step
S100, arranging one layer of described concrete anode at the outer surface of pipeline, described pipeline includes tubing and insulating barrier, described insulating barrier
It is positioned at the inner peripheral surface of described tubing；Step S200, the positive pole of dc source is electrically connected with described concrete anode, by described directly
The negative pole of stream power supply electrically connects with the tubing in described pipeline.The cathode protecting process that the present invention provides implements simple side
Just, simple in construction, and can effectively the tubing in pipeline be protected, make the tubing in pipeline it can be avoided that invaded by environment
The corrosion of erosion medium, thus extend the service life of tubing.
Present invention also offers a kind of cathode protection device, including concrete anode, dc source and pipeline, described pipeline
Including tubing and insulating barrier, described insulating barrier is positioned at the inner peripheral surface of described tubing, and described concrete anode is arranged on described pipeline
Outer surface on, described tubing is connected with the negative electricity of described dc source, described concrete anode and described dc source
Positive pole electrically connects.
The cathode protection device that the present invention provides is formed cathodic protection system by concrete anode, pipeline and dc source,
Concrete anode is done anode, it is not necessary to extra anode, simple in construction, and owing to concrete anode casts directly over the table of pipeline
Face, installs very convenient, and area coverage is very big simultaneously, and the tubing in such pipeline can be protected comprehensively so that it is use the longevity
Life increases, and tubing is completely wrapped after being connected with dc source again, it is possible to reduce the consumption of electric energy, thus reduces waste of energy.
Below by specific embodiment and combine accompanying drawing the present invention is described in further detail.
Purpose, technical scheme and advantage for making the embodiment of the present invention are clearer, above in conjunction with in the embodiment of the present invention
Accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
The a part of embodiment of the present invention, rather than whole embodiments.Generally described in accompanying drawing herein, the present invention with diagram implements
The assembly of example can be arranged with various different configurations and design.
Therefore, the above detailed description to the embodiments of the invention providing in the accompanying drawings is not intended to limit claimed
The scope of the present invention, but be merely representative of the selected embodiment of the present invention.Based on the embodiment in the present invention, this area is common
The every other embodiment that technical staff is obtained under the premise of not making creative work, broadly falls into the model of present invention protection
Enclose.
It should also be noted that similar label and letter represent similar terms, therefore, once a certain Xiang Yi in following accompanying drawing
Individual accompanying drawing is defined, does not then need to define it further and explain in accompanying drawing subsequently.
In describing the invention, it should be noted that term the instructions such as " " center ", " on ", " interior ", " outward " orientation or
Position relationship for based on orientation shown in the drawings or position relationship, or the orientation usually put when this invention product uses or
Position relationship, is for only for ease of the description present invention and simplifies description, rather than device or the element of instruction or hint indication must
Must have specific orientation, with specific azimuth configuration and operation, be therefore not considered as limiting the invention.Additionally, art
Language " first ", " second " etc. are only used for distinguishing and describe, and it is not intended that indicate or hint relative importance.
In describing the invention, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " arrange ",
" install ", " being connected ", " connection " should be interpreted broadly, for example, it may be fixing connect, it is also possible to be to removably connect, or one
Body ground connects；Can be to be mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to indirect by intermediary
It is connected, can be the connection of two element internals.For the ordinary skill in the art, can be with in concrete condition understanding
State term concrete meaning in the present invention.
It should be noted that in the case of not conflicting, the embodiment in the present invention and the feature in embodiment can phases
Combination mutually.
Cathode protecting process embodiment
With reference to Fig. 1, present embodiments providing a kind of cathode protecting process, the method includes:
Step S100, arranging a layer concrete anode 109 at the outer surface of pipeline, pipeline includes tubing 103 and insulating barrier,
In a tubular form, insulating barrier is positioned at the inner surface of tubing 103 to tubing 103；
Step S200, the positive pole of dc source 107 is electrically connected with concrete anode 105, by the negative pole of dc source 107
Electrically connect with the tubing 103 in pipeline.
The cathode protecting process that the present embodiment provides implements simple and convenient, simple in construction, and can be effectively to pipeline
In tubing protect, make the tubing 103 in pipeline it can be avoided that corroded by environmental attack medium, thus extend tubing
The service life of 103.
In step S100, concrete anode 109 includes concrete substrate 105 and carbon fibre fabric net 106, first at pipeline
Outer surface arranges one layer of carbon fibre fabric net 106, is then poured into concrete substrate 105 on carbon fibre fabric net 106.
Carbon fibre fabric net 106 not only possesses good mechanical property, and its electric conductivity is good, corrosion-resistant, and current potential connects
The electrochemical properties of nearly inert metal, is possible not only to transmit impressed current, and service life is long；Carbon fibre fabric net 106 is fitted
For difformity, the different parts of structure, being laid on and needing structural region to be protected, its area coverage is big, can pass uniformly
Pass cathodic protection current, the crack resistance of concrete substrate 105 can also be improved simultaneously, make concrete substrate 105 be connected with pipeline
More firm.
In step S100: carbon fibre fabric net 106 is provided with multilayer, is provided with between adjacent carbon fibre fabric net 106
Concrete substrate 105.Multi-layer concrete matrix 105 and multilayer carbon fibre fabric net 106 form a kind of nearly spacing after being crisscross arranged
Mounting means so that structure is in the voltage gradient of anode, can improve cathodic protection efficiency.
Concrete substrate 105 can be that the mode using injection is arranged on carbon fibre fabric net 106.Use the side of injection
Formula can improve the density of concrete substrate, and make that concrete substrate 105 is connected with carbon fibre fabric net 106 is more firm,
Before arranging carbon fibre fabric net 106 on pipeline, can also carry out clearing up and moistening to the surface of pipeline
Deng processing, after so processing, either the adhesiveness of carbon fibre fabric net 106 or concrete substrate 105 and pipeline all incite somebody to action
It is greatly improved.
Cathode protection device embodiment 1
With reference to Fig. 2 and Fig. 3, present embodiments provide a kind of cathode protection device, concrete anode the 105th, dc source 107
And pipeline, pipeline includes tubing 103 and insulating barrier, and in a tubular form, insulating barrier is positioned at the inner surface of tubing, concrete sun to tubing 103
Pole 109 is arranged on the outer surface of pipeline, and tubing 103 is connected with the negative electricity of dc source 107, concrete anode 109 with straight
The positive pole electrical connection of stream power supply 107.
The cathode protection device that the present embodiment provides is formed the moon by concrete anode the 109th, tubing 103 and dc source 107
System is protected in pole, is done anode by concrete anode 109, it is not necessary to extra anode, simple in construction, and due to concrete anode 109
Directly pouring in pipeline external surface, very convenient when mounted, area coverage is very big simultaneously, and such tubing 103 can obtain entirely
Face is protected so that it is service life increases, and tubing 103 is completely wrapped after being connected with dc source 107 again, it is possible to reduce electric energy
Consume, thus reduce waste of energy.
Pipeline can be to be poured formed by tubing 103 and concrete 104, and then the outer surface at pipeline arranges concrete sun
Pole 109.The cross section of pipeline can be rounded, oval, and certainly, the cross section of pipeline is arranged as required to into other shapes
Also possible.
Concrete anode 109 includes the concrete substrate 105 using fine aggregate concrete to make.Fine aggregate concrete has
The advantages such as high-strength, cracking resistance, anticorrosive, good endurance, fire prevention, designability are strong, it is adaptable to thin-wall construction or corrosion resistant member with
And the clad material of structure and structural strengthening in adverse circumstances.
Gather materials also known as aggregate.Aggregate is divided into coarse aggregate and fine aggregate.Concrete 104 mainly comprise one of material.Mainly
Play skeleton function and reduce owing to Binder Materials is condensing the Volume Changes caused by drying shrinkage bulking in hardening process, also making simultaneously
Cheap inserts for Binder Materials.Have natural aggregate and artificial aggregate point, the former is such as rubble, cobble, float stone, natural sand
Deng；The latter's such as cinder, slag, haydite, expanded perlite etc..Particle apparent density is light less than the title that gathers materials of 1700 kilograms/cubic metre
Gather materials, in order to manufacture normal concrete 104；Weigh especially gathers materials, in order to manufacture loaded concrete 104, such as radiation shield concrete
104.Gathering materials and being divided into coarse aggregate and fine aggregate by granular size, general provision particle diameter is coarse aggregate more than 4.75 millimeters of persons, as broken
Stone and cobble, particle diameter is from being fine aggregate less than 4.75 millimeters of persons, such as natural sand.
Concrete anode 109 also includes carbon fibre fabric net 106, and carbon fibre fabric net 106 is installed on pipeline external surface, carbon
Fabric net 106 is positioned between pipeline and concrete substrate 105.
Carbon fibre fabric net 106 not only possesses good mechanical property, and its electric conductivity is good, corrosion-resistant, and current potential connects
The electrochemical properties of nearly inert metal, is possible not only to transmit impressed current, and service life is long；Carbon fibre fabric net 106 is fitted
For difformity, the different parts of structure, being laid on and needing structural region to be protected, its area coverage is big, can pass uniformly
Passing cathodic protection current, can also make that concrete substrate 105 is connected with pipeline is more firm simultaneously.
Pipeline can also include concrete 104, and tubing 103 can be to be made up of reinforcing bar, and tubing 103 includes many longitudinal steel
Muscle 101 and Duo Gen stirrup 102, many longitudinal reinforcements 101 are connected with the negative pole of dc source 107 respectively, and many stirrups 102 are respectively
It is connected with the negative pole of dc source 107, many longitudinal reinforcement 101 being provided at circumferentially spaced along stirrup 102, many stirrup 102 edges
The length direction interval of longitudinal reinforcement 101 is arranged, and then concrete 104 is cast on tubing 103 formation concrete reinforced pipe
Road.Many longitudinal reinforcement 101 and Duo Gen stirrups 102 make the structure of pipeline more stable, meanwhile, and many longitudinal reinforcements 101 points
Not being connected with the negative pole of dc source 107, many stirrups 102 are connected with the negative pole of dc source 107 respectively, can be to longitudinal steel
Muscle 101 and stirrup 102 form and more comprehensively protect, and the center line of the through hole of pipeline is the centerline collineation with stirrup 102.
Certainly, tubing 103 should at least include four longitudinal reinforcements 101 and at least connect root stirrup 102.
Adjacent longitudinal reinforcement 101 is electrically connected by wire.For measuring the electrical connectivity between longitudinal reinforcement 101.
Longitudinal reinforcement 101 and stirrup 102 can be connected by tied silk.Longitudinal reinforcement 101 and stirrup 102 are connected by tied silk
Integrated connection performance and the electric conductivity of tubing can be improved, meanwhile, improve the adhesive property with concrete 104.
Cathode protection device also includes control system, control system be connected to the negative pole of described dc source and tubing it
Between.Direct current generator can be controlled by control system 108 so that it is keeps lasting output, is periodically adjusted permissible
Effectively reduce the consumption of electric energy, tubing 103 can also be monitored with timed unit, meter can be observed by control device
Calculate the extent of deterioration of tubing 103.
Cathode protection device embodiment 2
The present embodiment also provides a kind of cathode protection device, and the present embodiment is the skill in cathode protection device embodiment 1
Improvement further on the basis of art scheme, the technical scheme that cathode protection device embodiment 1 describes is equally applicable to this enforcement
Example, the published technical scheme of cathode protection device embodiment 1 is not repeated to describe.
Concrete, the present embodiment is with the difference of cathode protection device embodiment 1, the cathodic protection that the present embodiment provides
Tubing in the pipeline of device is made up of a monoblock steel metal material or other metal materials, and insulating barrier can be to apply
Layer, is ejected on the inner peripheral surface of pipeline.
Present invention provides the embodiment of two kinds of pipelines, the cathode protecting process that the present invention provides and device are suitable equally
Pipeline for other forms such as aqueduct, gas pipeline or oil pipelines.
In sum, the cathode protecting process that the present invention provides implements simple and convenient, simple in construction, and can be effective
Metal material in pipeline is protected, makes the metal material in pipeline it can be avoided that corroded by environmental attack medium,
Thus extend the service life of metal material.
The cathode protection device that the present invention provides is formed cathodic protection system by concrete anode, pipeline and dc source,
Concrete anode is done anode, it is not necessary to extra anode, simple in construction, and owing to concrete anode casts directly over the table of pipeline
Face, installs very convenient, and area coverage is very big simultaneously, and the tubing in such pipeline can be protected comprehensively so that it is use the longevity
Life increases, and tubing is completely wrapped after being connected with dc source again, it is possible to reduce the consumption of electric energy, thus reduces waste of energy.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, that is made any repaiies
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. a cathode protecting process, it is characterised in that the method includes:
Step S100, arranging a layer concrete anode at the outer surface of pipeline, described pipeline includes tubing and insulating barrier, described absolutely
Edge layer is positioned at the inner surface of described tubing；
Step S200, the positive pole of dc source is electrically connected with described concrete anode, by negative pole and the institute of described dc source
State the tubing electrical connection in pipeline.
2. cathode protecting process according to claim 1, it is characterised in that
In described step S100, described concrete anode includes concrete substrate and carbon fibre fabric net, first at described pipeline
Outer surface arranges one layer of carbon fibre fabric net, then described concrete substrate is poured into described carbon fibre fabric online.
3. cathode protecting process according to claim 2, it is characterised in that in described step S100: described carbon fiber is knitted
Thing net is provided with multilayer, is provided with described concrete substrate between adjacent described carbon fibre fabric net.
4. cathode protecting process according to claim 3, it is characterised in that described concrete substrate uses the mode of injection
It is online that carbon fibre fabric is set to.
5. a cathode protection device, it is characterised in that include concrete anode, dc source and pipeline, described pipeline includes
Tubing and insulating barrier, described insulating barrier is positioned at the inner surface of described tubing, and described concrete anode is arranged on outside described pipeline
On surface, described tubing is connected with the negative electricity of described dc source, the positive pole of described concrete anode and described dc source
Electrical connection.
6. cathode protection device according to claim 5, it is characterised in that described concrete anode includes using fine aggregate
The concrete substrate that concrete is made.
7. cathode protection device according to claim 6, it is characterised in that described concrete anode also includes that carbon fiber is knitted
Thing net, described carbon fibre fabric net is installed on described pipeline, and described carbon fibre fabric net is positioned at described pipeline and described concrete
Between matrix.
8. cathode protection device according to claim 7, it is characterised in that described pipeline also includes concrete, described pipe
Material includes many longitudinal reinforcements and Duo Gen stirrup, and many described longitudinal reinforcements are connected with the negative pole of described dc source respectively, many
Stirrup described in root is connected with the negative pole of described dc source respectively, and many described longitudinal reinforcements set along the circumferentially-spaced of described stirrup
Putting, many described stirrups are arranged along the length direction interval of described longitudinal reinforcement, and described concrete is cast in described tubing and is formed
Reinforced concrete pipiline.
9. cathode protection device according to claim 8, it is characterised in that adjacent described longitudinal reinforcement is by wire electricity
Connect.
10. cathode protection device according to claim 5, it is characterised in that described cathode protection device also includes control
System, described control system is connected between the negative pole of described dc source and described tubing.
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| CN201610635510.5A CN106148968A (en) | 2016-08-04 | 2016-08-04 | A kind of cathode protecting process and device |
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| CN201610635510.5A CN106148968A (en) | 2016-08-04 | 2016-08-04 | A kind of cathode protecting process and device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107671504A (en) * | 2017-10-17 | 2018-02-09 | 昌河飞机工业（集团）有限责任公司 | A kind of method for making electrolysis cutting processing negative electrode |
| CN115306079A (en) * | 2022-08-26 | 2022-11-08 | 深圳大学 | CFRP hooped concrete combined member with reinforcing and cathodic protection functions |
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| CN1851054A (en) * | 2006-04-11 | 2006-10-25 | 西安石油大学 | Metal pipeline line electrochemical anticorrosion apparatus |
| CN2899967Y (en) * | 2006-04-29 | 2007-05-16 | 中国海洋石油总公司 | Spraying anode protecter for concrete |
| CN200985346Y (en) * | 2006-12-13 | 2007-12-05 | 陕西易莱德新材料科技有限公司 | Anode net belt for protecting cathode used in steel bar concrete structure |
| CN101260525A (en) * | 2008-04-30 | 2008-09-10 | 武汉爱劳高科技有限责任公司 | Oil gas transmission pipeline protection device |
| CN203809954U (en) * | 2014-05-14 | 2014-09-03 | 中工武大设计研究有限公司 | Bilateral interactive cathode protected PCCP (prestressed concrete cylinder pipe) |
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| CN107671504A (en) * | 2017-10-17 | 2018-02-09 | 昌河飞机工业（集团）有限责任公司 | A kind of method for making electrolysis cutting processing negative electrode |
| CN115306079A (en) * | 2022-08-26 | 2022-11-08 | 深圳大学 | CFRP hooped concrete combined member with reinforcing and cathodic protection functions |
| CN115306079B (en) * | 2022-08-26 | 2023-09-19 | 深圳大学 | CFRP stirrup concrete composite member with reinforcing and cathodic protection functions |
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