CN205635782U - Pipeline corrodes and protects experimental system - Google Patents
Pipeline corrodes and protects experimental system Download PDFInfo
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- CN205635782U CN205635782U CN201620241492.8U CN201620241492U CN205635782U CN 205635782 U CN205635782 U CN 205635782U CN 201620241492 U CN201620241492 U CN 201620241492U CN 205635782 U CN205635782 U CN 205635782U
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Abstract
The utility model provides a pipeline corrodes and protects experimental system, includes by pipeline corrosion protection layer defect detecting testing system and cathodic protection and disturbs and detect testing system, including setting up the ascending test junction box of pipeline disalignment in pipeline corrosion protection layer defect detecting testing system, including pre -buried in the different all ascending test blocks of pipeline in the test junction box, cathodic protection and disturbing detects including control cabinet and interference accessory equipment among the testing system. The problem of have single testing method among the prior art and can not synthesize various interference and actual conditions and do complete experiment, the difficult reproduction that realizes the pipeline true environment, the unable technique of guaranteeing the test precision is solved, a can highly restore the true environment is provided, and comprehensive accurate carrying on anticorrosively and protect the experimental system that detects the pipeline.
Description
Technical field
This utility model belongs to Oil & Gas Pipeline Testing field, in particular, provides a kind of corrosive pipeline and prevention system.
Background technology
At present, oil and gas pipes is widely used.Construction along with public corridor, complication due to actual environment, the interference of AC/DC becomes the most universal, the test process of pipeline corrosion protection system can be affected, owing to site environment is complicated, before detecting, generally require the accuracy of detection to equipment verify, existing equipment many employings laboratory testing rig, reproduction to pipeline true environment relatively difficult to achieve, and single test method comprehensive various interference and practical situation can not do complete test, the most just cannot ensure the precision of test, it may be said that also do not have what a kind of experimental facilities can be real to accomplish online pipeline true environment, and carry out effectively detecting accurately to it.
Summary of the invention
In order to solve above-mentioned technical problem; this utility model is created and is provided a kind of corrosive pipeline and prevention system; including by pipeline anticorrosion coating defects detection pilot system and cathodic protection and Interference Detection pilot system; pipeline anticorrosion coating defects detection pilot system includes be arranged on pipeline axially different on test junction box; include in test junction box and the test piece being embedded in pipeline difference circumference, cathodic protection and Interference Detection pilot system include control station and interference accessory device.By said apparatus connected applications, solve and prior art exists single test method comprehensive various interference and practical situation can not do complete test, it is more difficult to realize the reproduction to pipeline true environment, it is impossible to ensure the technical problem of accurate testing degree.
To achieve these goals, the technical solution adopted in the utility model is: a kind of corrosive pipeline and prevention system, it is characterised in that: include cathodic protection and Interference Detection experimental system and pipeline anticorrosion coating defects detection pilot system；
nullThe on off operating mode of electrical switch during industrial computer controls potentiostat output switching unit and disturbance state switch unit in cathodic protection and Interference Detection experimental system，Thus control the potentiostat being connected under potentiostat output switching unit and the commutator being connected under disturbance state switch unit、The signal output state of pressure regulator，Signal output part at potentiostat connects cathodic protection external circuit，The signal output part of commutator connects DC influence external circuit，The signal output part of pressure regulator connects AC influence external circuit，Cathodic protection external circuit、DC influence external circuit and AC influence external circuit collectively constitute external circuit，Data acquisition module by the message retransmission of external circuit to industrial computer，And shown by the outut device being connected on industrial computer，Industrial computer connects and has input equipment，It is used for inputting control command；
Pipeline anticorrosion coating defects detection pilot system is made up of several pipeline corrosion protections system test junction box being arranged on simulation pipeline, each pipeline corrosion protection system test junction box is connected by cable the test piece of different exposed area, the test piece of different exposed areas is embedded in the different circumferences of simulation pipeline, and several pipeline corrosion protections system test junction box is arranged on simulation pipeline axially different on, show by being transferred in display device after data collecting module collected experiment information.
Cathodic protection external circuit in described cathodic protection and Interference Detection experimental system includes reference electrode I, impressed current anode and simulation pipeline; reference electrode I, impressed current anode are connected with potentiostat by potentiostat output switching unit with simulation pipeline, provide cathodic protection for external circuit；
DC influence external circuit is formed by simulating pipeline, interference pole c and interference pole d, the electrical switch in disturbance state switch unit is controlled by industrial computer, thus select access interference pole c or interference pole d or disturb pole c jointly to access simulation pipeline with interference pole d, provide DC influence for external circuit；
AC influence external circuit is constituted by simulating pipeline, interference pole a and interference pole b, by being controlled the electrical switch in disturbance state switch unit by industrial computer, thus select access interference pole a or interference pole b or disturb pole a jointly to access simulation pipeline with interference pole b, provide AC influence for external circuit.
Air switch, calibrating terminal, reference electrode binding post, pipeline conductive connector, test piece binding post, D.C. voltmeter and A.C. voltmeter it is provided with on the test patch panel of pipeline corrosion protection system test junction box；Simulation pipeline is connected with pipeline calibrating terminal and pipeline conductive connector respectively by wire；Reference electrode II is wired on reference electrode binding post；Each test piece is connected with a test piece binding post, is wired to the two ends of air switch between pipeline conductive connector and test piece binding post, is controlled the on off operating mode of this circuit by air switch.
Overload protection and resistor it is in series with between described commutator and disturbance state switch unit; resistor is connected with DC influence adjusting knob; for regulating DC influence size, and show the interference voltages of applying and the size of current of DC influence in real time by DC voltage device for digit-displaying and DC influence current digital display device.
Described pressure regulator provides AC influence electric current for external circuit; before be equipped with isolating transformer for isolated high voltage; overload protection and electric capacity it is in series with between pressure regulator and disturbance state switch unit; electric capacity is connected with AC influence adjusting knob; for regulating AC influence size, alternating voltage device for digit-displaying and AC influence adjusting knob show the AC influence voltage applied and AC influence size of current in real time.
Two binding posts of described D.C. voltmeter and A.C. voltmeter are connected with pipeline test wiring pile, reference electrode binding post by wire respectively, and cloudy for real-time display pipes protects current potential and disturbed condition.
What this utility model was created has the beneficial effects that: this utility model passes through said structure; including by pipeline anticorrosion coating defects detection pilot system and cathodic protection and Interference Detection pilot system; pipeline anticorrosion coating defects detection pilot system includes be arranged on pipeline axially different on test junction box; include in test junction box and the test piece being embedded in pipeline difference circumference, cathodic protection and Interference Detection pilot system include control station and interference accessory device.Provide one and can highly reduce true environment, and the comprehensive and accurate experimental system that pipeline is carried out anticorrosion and protection detection.
Accompanying drawing explanation
Fig. 1: be electrically connected schematic diagram for this utility model.
Fig. 2: for the catenation principle figure of this utility model cathodic protection and interference test system.
Fig. 3: for the control panel layout drawing of Fig. 2.
Fig. 4: for the structural representation of this utility model pipeline corrosion protection system test junction box.
Fig. 5: for testing patch panel scattergram in Fig. 4.
Detailed description of the invention
A kind of corrosive pipeline and prevention system, its structure is: include cathodic protection and Interference Detection experimental system and pipeline anticorrosion coating defects detection pilot system；
nullThe on off operating mode of electrical switch during industrial computer 1 controls potentiostat output switching unit 8 and disturbance state switch unit 29 in cathodic protection and Interference Detection experimental system，Thus control the potentiostat being connected under potentiostat output switching unit 8 and the commutator 19 being connected under disturbance state switch unit 29、The signal output state of pressure regulator 25，Signal output part at potentiostat connects cathodic protection external circuit，The signal output part of commutator 19 connects DC influence external circuit，The signal output part of pressure regulator 25 connects AC influence external circuit，Cathodic protection external circuit、DC influence external circuit and AC influence external circuit collectively constitute external circuit，Data acquisition module 4 by the message retransmission of external circuit to industrial computer，And shown by the outut device 2 being connected on industrial computer，Industrial computer 1 connects and has input equipment 3，It is used for inputting control command.
Including reference electrode I45, impressed current anode 7 and simulation pipeline 5 in described cathodic protection external circuit, reference electrode I45, impressed current anode 7 are connected with potentiostat by potentiostat output switching unit 8 with simulation pipeline 5, provide cathodic protection for external circuit.
Described DC influence external circuit is formed by simulating pipeline 5, interference pole c42 and interference pole d43, the electrical switch in disturbance state switch unit 29 is controlled by industrial computer 1, thus select access interference pole c42 or interference pole d43 or disturb pole c42 jointly to access simulation pipeline 5 with interference pole d43, provide DC influence for external circuit.
Described AC influence external circuit is constituted by simulating pipeline 5, interference pole a40 and interference pole b41, by being controlled the electrical switch in disturbance state switch unit 29 by industrial computer 1, thus select access interference pole a40 or interference pole b41 or disturb pole a40 jointly to access simulation pipeline 5 with interference pole b41, provide AC influence for external circuit.
It is in series with overload protection and resistor between described commutator 19 and disturbance state switch unit 29; resistor is connected with DC influence adjusting knob 46; for regulating DC influence size, and show the interference voltages of applying and the size of current of DC influence in real time by DC voltage device for digit-displaying 11 and DC influence current digital display device 15.
Described pressure regulator 25 provides AC influence electric current for external circuit; before be equipped with isolating transformer 24 for isolated high voltage; overload protection and electric capacity it is in series with between pressure regulator 25 and disturbance state switch unit 29; electric capacity is connected with AC influence adjusting knob 16; for regulating AC influence size, alternating voltage device for digit-displaying 13 and AC influence adjusting knob 16 show the AC influence voltage applied and AC influence size of current in real time.
It is voltage difference that described data acquisition module 4 is implemented to gather between simulation pipeline 5 and reference electrode I45, shows in outut device 2 as feedback signal.
Described potentiostat includes potentiostat I17 and potentiostat II18, and a conduct work potentiostat, one, as standby potentiostat, controls the selection between two potentiostats and switching by potentiostat output switching unit 8.
Pipeline cathode protection and the control method of interference mixing console, the steps include:
1), manually main switch 10 control main power input, power for whole system；
2) the potentiostat I17 or potentiostat II18 of potentiostat switching switch 48 selection access, are used, it is also possible in industrial computer 1 control program, be set as automatic operational mode；
3), can be switched between manually and automatically by DC influence simulation switch knob 12:
3a), under automatic mode, start the preset operation program being loaded into, complete multiple interference operating mode；
3b), under manual mode, can be manually opened or close the electrical switch in disturbance state switch unit 29, select interference pole c42 or the interference pole d43 accessed, maybe interference pole c42 and interference pole d43 is concurrently accessed, regulates DC influence size by regulation DC influence adjusting knob 46；
4), can be switched between manually and automatically by AC influence adjusting knob 16:
4a), under automatic mode, start the preset operation program being loaded into, complete multiple interference operating mode；
4b), under manual mode, can be manually opened or close the electrical switch in disturbance state switch unit 29, select interference pole a40 or the interference pole b41 accessed, maybe interference pole a40 and interference interference pole, pole b41 is concurrently accessed, regulates AC influence size by regulation AC influence adjusting knob 16.
5), in outut device 2, result, and record are read.
Time specifically used:
Potentiostat output switching unit 8 in mixing console and disturbance state switch unit 29 are controlled by industrial computer 1 by control module 44.In terms of power supply input, manual main switch 10 controls main power input, and hand switch II49 controls the power supply input of isolating transformer 24 and pressure regulator 25, and hand switch I47 controls the power supply input of commutator 19.Analog power lamp is all used to show the power supply status of each equipment.Input equipment 3 is the mouse and keyboard being connected with industrial computer 1；Outut device 2 is the liquid crystal display being connected with industrial computer 1.The power supply input of potentiostat switching switch 48 control potentiostat I17 and potentiostat II18 and switching.
Cathodic protection external circuit is formed by simulating pipeline 5, reference electrode I45 and impressed current anode 7.Under the conditions of real-time Simulation, potentiostat I17 or potentiostat II18 provides cathodic protection current for external circuit.Potentiostat output switching unit 8 is made up of electronic switch set 9, can under the control of industrial computer 1 manual closure or openness, it is achieved the switching between potentiostat I17 and potentiostat II18, it is possible to set automatic operational mode in industrial computer 1 control program.
The external circuit of DC influence is formed by simulating pipeline 5, interference pole c42 and interference pole d43.Commutator 19 provides DC influence electric current for external circuit.Output loop is protected by overload protection I20 and overload protection II22.Resistor I21 and resistor II23, is connected with the DC influence adjusting knob 46 in accompanying drawing 2, can be used for regulating DC influence size.DC influence runs and includes manually and automatically two kinds of operational modes, and simulating switch knob 12 by the DC influence on control panel can switch between automatically and manually.Under automatic mode, the multiple interference operating mode that operation program is preset can be loaded into.Under manual mode, can manually opened or the electrical switch a30, electrical switch b31, electrical switch c32, electrical switch d33, electrical switch e34, electrical switch f35, electrical switch g36, electrical switch h37, electrical switch i38 of closedown disturbance state switch unit 29.DC voltage device for digit-displaying 11 and DC influence current digital display device 15 show the interference voltages applied and DC influence size of current in real time.
The external circuit of AC influence is by simulating pipeline 5 and interference pole a40, disturbing pole b41 to form.Pressure regulator 25 provides AC influence electric current for external circuit.Preposition isolating transformer 24 is for preventing the high voltage may be to the damage of inner member.Output loop is protected by overload protection III26.Electric capacity 27, is connected with the AC influence adjusting knob 16 in accompanying drawing 2, can be used for regulating AC influence size.AC influence runs and includes manually and automatically two kinds of operational modes, can be switched over by the AC influence pattern switch knob 14 on control panel between automatically and manually.Under automatic mode, the multiple interference operating mode that operation program is preset can be loaded into.Under manual mode, can manually opened or close disturbance state switch unit 29 electrical switch a30, electrical switch b31, electrical switch c32, electrical switch d33, electrical switch e34, electrical switch f35, electrical switch g36, electrical switch h37, electrical switch i38, electrical switch j39.AC influence adjusting knob 16 is used for regulating AC influence degree.Alternating voltage device for digit-displaying 13 and alternating current device for digit-displaying 28 show the AC influence voltage applied and AC influence size of current in real time.
Commutator 19 and pressure regulator 25 are simultaneously operable, for simulating the complex conditions of alternating current-direct current interference.Electrical switch g36 in disturbance state switch unit 29 and electrical switch i38, electrical switch h37 and electrical switch j39, electrical switch a30 and electrical switch c32 have mutual repulsion effect, it is impossible to be closed at.
Potential difference between data acquisition module 4 Real-time Collection external circuit simulation pipeline 5 and reference electrode I45, as feedback signal, shows in outut device 2, and can be saved in industrial computer 1 hard disk.
As Figure 2-3, industrial computer 1 uses ADVANTECH 610L Industrial Control Computer, is provided with supporting control software PC-GDF2；Outut device 2 uses liquid crystal display；Input equipment 3 uses Logitech mouse and keyboard；Data acquisition module 4 uses ADAM4069 type acquisition module；Simulation pipeline 5 uses the buried steel pipe of diameter 159mm；Reference electrode I45 uses copper sulfate reference electrode；Impressed current anode 7 uses the steel pipe of diameter 106mm；Electronic DC switch uses solid-state relay；Electronic AC switch uses auxiliary reclay；Potentiostat I17 uses PS-1LC type potentiostat；Potentiostat II18 uses IHF type potentiostat；Commutator 19 uses the single-phase full-controlled rectifier voltage regulating module of rated output voltage 100V, electric current 20A；Overload protection I20, overload protection II22, overload protection III26 use RGS4 type fuse；Resistor I21, resistor II23 use carbon film adjustable resistance；Isolating transformer 24 uses single-phase shielding isolating transformer, and rated output power 3kVA(220V enters/50V goes out)；Pressure regulator 25 uses intelligence full isolation single-phase voltage regulating module, and rated output power 1kVA(can regulate in the range of 0～50V)；Electric capacity 27 uses tunable capacitor；Interference pole a40, disturbs pole b41, disturbs pole c42, interference pole d43 to use the steel pipe of diameter 106mm；Control module 44 uses ADAM4069 control module；Hand switch uses round button, band LED light；DC voltage device for digit-displaying 11, alternating voltage device for digit-displaying 13, DC influence current digital display device 15, alternating current device for digit-displaying 28 use SX48 digital displaying meter；DC influence simulation switch knob 12, AC influence pattern switch knob 14, potentiostat switching switch 48 employing rotary switch；DC influence adjusting knob 46 uses adjustable resistor；AC influence adjusting knob 16 uses tunable capacitor.
Pipeline anticorrosion coating defects detection pilot system is made up of several pipeline corrosion protections system test junction box 6 being arranged on around simulation pipeline 5, each pipeline corrosion protection system test junction box 6 is connected by cable the test piece 6-3 of different exposed area, the test piece 6-3 of different exposed areas is embedded in the different circumferences of simulation pipeline 5, and several pipeline corrosion protections system test junction box 6 is arranged on simulation pipeline 5 axially different on, be transferred in display device after gathering experiment information by data acquisition module 4 show.
Air switch 6-23, calibrating terminal 6-15, reference electrode binding post 6-16, pipeline conductive connector 6-17, test piece binding post 6-18, D.C. voltmeter 6-9 and A.C. voltmeter 6-10 it is provided with on the test patch panel 6-13 of pipeline corrosion protection system test junction box 6；Simulation pipeline 5 is connected with pipeline calibrating terminal 6-15 and pipeline conductive connector 6-17 respectively by wire；Reference electrode II6-2 is wired on reference electrode binding post 6-16；Each test piece 6-3 and a test piece binding post are connected, and be wired to the two ends of air switch, controlled the on off operating mode of this circuit by air switch between pipeline conductive connector 6-17 and test piece binding post.Two binding posts of described D.C. voltmeter 6-9 and A.C. voltmeter 6-10 are connected with pipeline test wiring pile 6-15, reference electrode binding post 6-16 by wire respectively, and cloudy for real-time display pipes protects current potential and disturbed condition.
Test patch panel 6-13 is arranged in casing 6-7 by screw 6-14, and casing 6-7 is arranged on base 6-5 by support 6-6, and D.C. voltmeter 6-9 and A.C. voltmeter 6-10 passes through the perforate on casing 6-7 in casing exterior visual.It is additionally provided with standby binding post 6-22 on test patch panel 6-13.It is provided with door lock 6-11 on casing 6-7, test patch panel 6-13 and internal structure are locked in inside casing 6-7.
Casing 6-7 and support 6-6, between support 6-6 with base 6-5, solderable or bolt is connected.Casing 6-7 is provided with nameplate 6-8 and door lock 6-11.Test patch panel 6-13 is fixed on casing 6-7 by screw 6-14.It is provided with D.C. voltmeter 6-9, A.C. voltmeter 6-10, pipeline calibrating terminal 6-15, reference electrode binding post 6-16, pipeline conductive connector 6-17, test piece binding post I6-18 on test patch panel 6-13, test piece binding post II6-19, test piece binding post III6-20, test piece binding post IV6-21, standby binding post 6-22, air switch I6-23, air switch II6-24, air switch III6-25, air switch IV6-26.Each binding post is respectively connected with rubber socket.D.C. voltmeter 6-9, A.C. voltmeter 6-10 are revealed in atmosphere by the perforate on casing 6-7, use plexiglass tent to protect.Simulation pipeline 5 is connected respectively on pipeline calibrating terminal 6-15 and pipeline conductive connector 6-17 by two pipeline wire 6-12.Reference electrode II6-2 is connected on reference electrode binding post 6-16 by reference electrode wire 6-12.Test piece 6-3 is connected on test piece binding post I16-8 by test piece wire 6-4.Test piece 6-3 has different size of fixing bare area, and remaining position in addition to exposed part uses epoxy resin and heat shrinking sleeve to seal protection.The corresponding test piece binding post of each test piece 6-3 and an air switch, be wired to the two ends of air switch respectively between pipeline conductive connector 6-17 and test piece binding post.By closing different air switches, diverse location, different size of deficiency of protection coating can be electrically connected with pipeline, be used for simulating deficiency of protection coating.D.C. voltmeter 6-9, two binding posts of A.C. voltmeter 6-10 are connected with pipeline calibrating terminal 6-15 and reference electrode binding post 6-16 by wire respectively, and cloudy for real-time display pipes protects current potential and disturbed condition.
Reference electrode II6-2 uses copper sulfate reference electrode；Test piece 6-3 uses 16Mn material test piece, and bare area is respectively 1mm2、10mm2、100mm2, non-exposed part uses epoxy resin and heat shrinking sleeve to seal protection, as required, can extend or reduce the quantity of test piece 6-3 time specifically used.Test piece wire 6-4 uses 10mm2VV wire.
Use cathodic protection and Interference Detection pilot system that pipeline is disturbed; simulate true interference environment; use pipeline anticorrosion coating defects detection pilot system that pipeline corrosion protection defect is simulated, it is possible to reduce to the full extent actual environment, improve accuracy in detection.
Claims (6)
1. a pipeline corrosion protection and prevention system, it is characterised in that: include cathodic protection and Interference Detection experimental system and pipeline anticorrosion coating defects detection pilot system；
nullThe on off operating mode of electrical switch during industrial computer (1) controls potentiostat output switching unit (8) and disturbance state switch unit (29) in cathodic protection and Interference Detection experimental system，Thus control the potentiostat being connected under potentiostat output switching unit (8) and the commutator (19) being connected under disturbance state switch unit (29)、The signal output state of pressure regulator (25)，Signal output part at potentiostat connects cathodic protection external circuit，The signal output part of commutator (19) connects DC influence external circuit，The signal output part of pressure regulator (25) connects AC influence external circuit，Cathodic protection external circuit、DC influence external circuit and AC influence external circuit collectively constitute external circuit，Data acquisition module (4) by the message retransmission of external circuit to industrial computer，And shown by the outut device (2) being connected on industrial computer，Input equipment (3) is had in the upper connection of industrial computer (1)，It is used for inputting control command；
Pipeline anticorrosion coating defects detection pilot system is formed by being arranged on simulation pipeline (5) several pipeline corrosion protections system test junction box (6) around, each pipeline corrosion protection system test junction box (6) is connected by cable the test piece (6-3) of different exposed area, the test piece (6-3) of different exposed areas is embedded in the different circumferences of simulation pipeline (5), and several pipeline corrosion protections system test junction box (6) are arranged on simulation pipeline (5) axially different on, it is transferred in display device show after gathering experiment information by data acquisition module (4).
A kind of pipeline corrosion protection the most according to claim 1 and prevention system; it is characterized in that: the cathodic protection external circuit in described cathodic protection and Interference Detection experimental system includes reference electrode I(45), impressed current anode (7) and simulation pipeline (5); reference electrode I(45), impressed current anode (7) with simulation pipeline (5) be connected with potentiostat by potentiostat output switching unit (8), for external circuit offer cathodic protection；
DC influence external circuit is by simulating pipeline (5), interference pole c(42) and interference pole d(43) form, the electrical switch in disturbance state switch unit (29) is controlled by industrial computer (1), thus select to access interference pole c(42) or disturb pole d(43) or interference pole c(42) and interference pole d(43) common access simulation pipeline (5), for external circuit offer DC influence；
AC influence external circuit is by simulating pipeline (5), interference pole a(40) and interference pole b(41) constitute, by being controlled the electrical switch in disturbance state switch unit (29) by industrial computer (1), thus select to access interference pole a(40) or disturb pole b(41) or interference pole a(40) and interference pole b(41) common access simulation pipeline (5), for external circuit offer AC influence.
A kind of pipeline corrosion protection the most according to claim 1 and prevention system, it is characterised in that: it is provided with air switch (6-23), pipeline calibrating terminal (6-15), reference electrode binding post (6-16), pipeline conductive connector (6-17), test piece binding post (6-18), D.C. voltmeter (6-9) and A.C. voltmeter (6-10) on the test patch panel (6-13) of pipeline corrosion protection system test junction box (6)；Simulation pipeline (5) is connected with pipeline calibrating terminal (6-15) and pipeline conductive connector (6-17) respectively by wire；Reference electrode II(6-2) it is wired on reference electrode binding post (6-16)；Each test piece (6-3) is connected with a test piece binding post, is wired to the two ends of air switch, is controlled the on off operating mode of this circuit by air switch between pipeline conductive connector (6-17) and test piece binding post.
A kind of pipeline corrosion protection the most according to claim 2 and prevention system; it is characterized in that: between described commutator (19) and disturbance state switch unit (29), be in series with overload protection and resistor; resistor is connected with DC influence adjusting knob (46); for regulating DC influence size, and by DC voltage device for digit-displaying (11) and DC influence current digital display device (15) interference voltages that display applies in real time and the size of current of DC influence.
A kind of pipeline corrosion protection the most according to claim 2 and prevention system, it is characterized in that: described pressure regulator (25) provides AC influence electric current for external circuit, before be equipped with isolating transformer (24) for isolated high voltage, it is in series with overload protection and electric capacity between pressure regulator (25) and disturbance state switch unit (29), electric capacity is connected with AC influence adjusting knob (16), for regulating AC influence size, alternating voltage device for digit-displaying (13) and AC influence adjusting knob (16) show the AC influence voltage applied and AC influence size of current in real time.
A kind of pipeline corrosion protection the most according to claim 3 and prevention system, it is characterized in that: described D.C. voltmeter (6-9) and two binding posts of A.C. voltmeter (6-10) are connected with pipeline calibrating terminal (6-15), reference electrode binding post (6-16) by wire respectively, cloudy for real-time display pipes protects current potential and disturbed condition.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105586596A (en) * | 2016-03-28 | 2016-05-18 | 沈阳龙昌管道检测中心 | Pipeline corrosion and protection experiment system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105586596A (en) * | 2016-03-28 | 2016-05-18 | 沈阳龙昌管道检测中心 | Pipeline corrosion and protection experiment system |
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Effective date of registration: 20220324 Address after: 110000 No. 19, Hunnan East Road, Shenyang, Liaoning Patentee after: Shenyang inspection technology branch of national pipe network group north Pipeline Co.,Ltd. Address before: 110168 No. 16, Xuecheng Road, Hunnan District, Shenyang City, Liaoning Province Patentee before: SHENYANG LONGCHANG PIPELINE TESTING CENTER |