CN103091242B - Steel pipeline anticorrosive coating cathodic disbonding resistance automatic testing system - Google Patents
Steel pipeline anticorrosive coating cathodic disbonding resistance automatic testing system Download PDFInfo
- Publication number
- CN103091242B CN103091242B CN201110343691.1A CN201110343691A CN103091242B CN 103091242 B CN103091242 B CN 103091242B CN 201110343691 A CN201110343691 A CN 201110343691A CN 103091242 B CN103091242 B CN 103091242B
- Authority
- CN
- China
- Prior art keywords
- test
- electrolytic solution
- voltage
- card
- current
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 112
- 238000000576 coating method Methods 0.000 title claims abstract description 19
- 239000011248 coating agent Substances 0.000 title claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 9
- 239000010959 steel Substances 0.000 title claims abstract description 9
- 239000008151 electrolyte solution Substances 0.000 claims abstract description 27
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000013481 data capture Methods 0.000 claims abstract description 15
- ZOMNIUBKTOKEHS-UHFFFAOYSA-L dimercury dichloride Chemical compound Cl[Hg][Hg]Cl ZOMNIUBKTOKEHS-UHFFFAOYSA-L 0.000 claims abstract description 14
- 239000000523 sample Substances 0.000 claims abstract description 14
- 229910052697 platinum Inorganic materials 0.000 claims abstract description 10
- 238000004458 analytical method Methods 0.000 claims abstract description 4
- 238000005070 sampling Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 claims description 2
- 239000000565 sealant Substances 0.000 claims description 2
- 239000011780 sodium chloride Substances 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 abstract description 8
- 230000007797 corrosion Effects 0.000 abstract description 6
- 239000007769 metal material Substances 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 6
- 238000012544 monitoring process Methods 0.000 description 6
- 101000972637 Homo sapiens Protein kintoun Proteins 0.000 description 3
- 101150044039 PF12 gene Proteins 0.000 description 3
- 102100022660 Protein kintoun Human genes 0.000 description 3
- 238000013480 data collection Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 230000002421 anti-septic effect Effects 0.000 description 2
- HGAZMNJKRQFZKS-UHFFFAOYSA-N chloroethene;ethenyl acetate Chemical compound ClC=C.CC(=O)OC=C HGAZMNJKRQFZKS-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 101000618139 Homo sapiens Sperm-associated antigen 6 Proteins 0.000 description 1
- 102100021909 Sperm-associated antigen 6 Human genes 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 238000004210 cathodic protection Methods 0.000 description 1
- 230000002301 combined effect Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 229920006334 epoxy coating Polymers 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The present invention is a kind of steel pipeline anticorrosive coating cathodic disbonding resistance automatic testing system.Relate to general corrosion protection and the piping system technical field of metal material.It comprises specialized voltages data collecting card, current data capture card, pci bus, host computer, variable resistance box, voltage/current data collecting probe, direct supply, baking oven, test trough, electrolytic solution and electrode; Inject electrolytic solution by Valve controlling in the multiple test trough being placed in controllable temperature system, insert platinum electrode, mercurous chloride electrode and current acquisition end in electrolytic solution, under test specimen is placed in test trough; Platinum electrode is connected with the positive pole of direct supply after variable resistor, and the negative pole of current source is connected with test specimen; Specialized voltages data collecting card, current data capture card are connected with analysis and Control system-host computer by pci bus, and voltage acquisition probe is connected with mercurous chloride electrode end.The present invention has the functions such as control, collection, storage, more efficiently, accurately, objectively can reflect test data.
Description
Technical field
The present invention is a kind of steel pipeline anticorrosive coating cathodic disbonding resistance automatic testing system.Relate to general corrosion protection and the piping system technical field of metal material.
Background technology
Along with the continuous lifting of national economy, domestic every profession and trade is also growing with each passing day to the demand of oil, rock gas.Country has not only carried out large-scale input to the exploration of domestic oil, natural gas source, and actively cooperates with external surrounding countries, buys a large amount of crude oil and rock gas to meet domestic demand.Under such circumstances, its construction of pipeline as conveying crude oil, rock gas Main Means also enters a new developing period, the domestic pipe-line construction task having completed nearly 100,000 kms during 11th Five-Year.So development makes the anticorrosive quality of people to pipeline more pay close attention to fast.In recent years, generally have employed advanced three-decker tygon (3PE) coating technology in most of pipework of China, achieve good effect.3PE coating overcomes the deficiency of single epoxy coating and polyethylene anticorrosive coating, has excellent combination property.But in recent years to in-service pipeline carry out excavation detect time, find manyly to lose efficacy the pipe body corrosion phenomenon caused due to anticorrosive coat, some pipelines just reach 3-4mm in the corrosion depth of 3 ~ 4 years interior tube bodies, and annual is corroded and reached 1mm.So corrode the quality and serviceable life that not only have impact on pipeline fast, and leave huge potential safety hazard to normal operation.So the effect of anti-corrosion material in pipeline corrosion protection engineering is particularly important.In the anti-corrosion material Performance Detection that laboratory is carried out, cathodic disbonding performance is one of important performance of pipeline corrosion protection layer material, and its quality is directly connected to the combined effect of coating and cathodic protection.
At present, the cathodic disbonding technical standard of domestic use mainly contains two kinds, one is that the basic skills that SY/T0413 " buried steel pipeline polyethylene anticorrosive coating technical standard " Appendix B specifies is carried out, and one is that the basic skills that SY/T0315-2005 " steel pipe clinkery epoxy powder external coating technical standard " appendix C specifies is carried out.Test is carried out in thermostatic drying chamber, and auxiliary electrode is 213 type platinum electrodes, and contrast electrode is saturated calomel electrode (see Fig. 1).The impact of Different factor on 3PE coated cathode stripping performance is investigated by changing several Main.Continuous regulating resistor is needed to carry out warranty test voltage in test process, and need to prize stripping coating artificially till anticorrosive coat shows obvious anti-pick stripping property after test period terminates, like this, not only reduce testing efficiency, also make test data not accurate enough, the antikathode stripping performance of coating can not be reflected objectively.In order to make cathodic disbonding test figure more accurate, test operation is more convenient, should develop a kind of cathodic disbonding test data collection system being specifically applied to pipeline coatings.
Summary of the invention
The object of the invention is invention one and have the major functions such as control, collection, storage, the steel pipeline anticorrosive coating cathodic disbonding resistance automatic testing system of test data can be reflected more efficiently, accurately, objectively.
Because cathodic disbonding and electric current, temperature variation have certain relation, therefore by experiment set up electric current, temperature variation and cathodic disbonding change between relation, by monitoring current, temperature variation, cathodic disbonding numerical value can be obtained.The present invention is based on automatic data collection and analytical technology, carry out Real-Time Monitoring to by electrolytic solution and test specimen cathodic disbonding experiment.By carrying out sampling period setting to control system, data collecting card can acquisition test temperature, electric current, the isoparametric numerical value of voltage incessantly, by analyzing the change of these parameters, draw the numerical value of cathodic disbonding intensity, thus the more simple coating antiseptic of evaluation objectively quality.
The present invention is based on automatic data collection and analytical technology, carrying out Real-Time Monitoring to being detected by electrolytic solution and test specimen cathodic disbonding.By carrying out sampling period setting to control system, data collecting card can acquisition test temperature, electric current, the isoparametric numerical value of voltage incessantly, by analyzing the change of these parameters, the numerical value of cathodic disbonding intensity can be drawn, evaluating coating antiseptic quality more objectively simultaneously.
Cathodic disbonding Auto-Test System of the present invention is totally formed as shown in Figure 1, comprises specialized voltages data collecting card, current data capture card, pci bus, host computer, variable resistance box, voltage/current data collecting probe, direct supply, controllable temperature system, test trough, electrolytic solution and electrode; Inject electrolytic solution by Valve controlling in the multiple test trough being placed in controllable temperature system, insert platinum electrode, mercurous chloride electrode and current acquisition end in electrolytic solution, under test specimen is placed in test trough; Platinum electrode is by being connected with the positive pole of direct supply after variable resistor, and the negative pole of current source connects with test specimen; Specialized voltages data collecting card, current data capture card are connected with analysis and Control system-host computer by pci bus, and voltage acquisition probe is through being connected with mercurous chloride electrode end, and current acquisition probe stretches in electrolytic solution and carries out Real-time Collection.
Variable resistor is automatically adjusted by control module, to ensure that test specimen both end voltage maintains-1.5V.Insert an other electrode in electrolytic solution and be used for electrolytic solution current data in Real-time Collection test process, and real-time storage data are convenient to evaluate after test terminates.
Wherein:
Electrolytic solution in test trough is by baking oven control temperature;
Be connected concentric to prefabricated plastic cylinder and test specimen with fluid sealant, and in test trough, add the NaCl electrolytic solution that concentration is 3%, liquid level sensor is positioned over test trough 4/5 place, and when liquid level is lower than this position, system can add distilled water automatically to keep liquid level;
Current data capture card and voltage data capture card have multiple data acquisition channel, can test many group test specimens simultaneously simultaneously;
Host computer develops special database and data processing software, carries out objective, science, effectively evaluating to test data.
Fig. 2 is observing and controlling and the acquisition system circuit diagram of this test macro, and this test macro adopts NI voltage acquisition card PCI6221 and current acquisition card PCI6239.PCI6221 is 16, sampling rate 250kS/s, have the high speed voltage data collecting card of 10 passages.PCI6239 is 16, sampling rate 250kS/s, have the High-speed Electric flow data capture card of 8 passages.The a-road-through road of current acquisition end and platinum electrode access PCI6221, keeps gathering at any time to voltage during test.Because the resistivity of solution changes during test, both end voltage can not be stablized, so regulate in real time variohm according to the magnitude of voltage of PCI6221 collection, to ensure that test voltage stabilizes to-1.5V.Insert the a-road-through road that mercurous chloride electrode and current acquisition termination enter PCI6239 in the electrolytic solution of test trough, Real-time Collection is carried out to electric current in electrolytic solution, is stored into disk system by PCI port by after computer disposal.
Cathodic disbonding Auto-Test System of the present invention, have the major functions such as control, collection, storage, analysis, the functions such as the support of upper computer software fulfillment database, data analysis and slave computer control, cathodic disbonding automatic data acquisition system (ADAS) more efficiently, accurately, objectively can reflect experimental data, provides evaluation test coating antikathode stripping performance whether effective means.
The invention provides a kind of automatic data acquisition system (ADAS) for pipeline coatings cathodic disbonding test.This acquisition system solves laboratory for a long time and carries out cathodic disbonding and test the problems such as the data brought by human factor are inaccurate, efficiency is lower, can carry out more effectively, objectively evaluating to the test specimen after the test specimen in test and test terminate.The cathodic disbonding test solving domestic pipeline anticorrosive coat testing agency is mainly manual operation, reduces tester's labour intensity, increases work efficiency.By automation technology application in cathodic disbonding test, realize automatic real time on-line monitoring, and cost is lower.This test macro has automatically, continuously, feature timely, accurately and timely can grasp state during cathodic disbonding test, data accuracy, repdocutbility are high, for test result provides more science, objective and accurate foundation.
So advantage of the present invention is:
1) the cathodic disbonding test solving domestic pipeline anticorrosive coat testing agency is mainly manual operation, reduces testing crew labour intensity, increases work efficiency;
2) by automation technology application in cathodic disbonding test in, realize automatic real time on-line monitoring, and cost is lower;
3) this test macro have automatically, continuously, feature timely, accurately and timely can grasp state during cathodic disbonding test, data accuracy, repdocutbility are high, for test result provides more science, objective and accurate foundation.
Accompanying drawing explanation
The automatic collecting test system principle diagram of Fig. 1 steel pipeline anti-corrision layer resistance to cathodic disbonding performance data
Fig. 2 test macro electrical schematic diagram
Embodiment
Embodiment. also the present invention is further illustrated with this example, the specific embodiment of the present invention to be described.This example is an experimental prototype, and it is formed as shown in Figure 1, comprises specialized voltages, current data capture card, pci bus, host computer (common PC), variable resistance box, voltage/current data collecting probe, direct supply.Specialized voltages, current data capture card are connected with host computer by pci bus, and voltage/current data collecting probe to be connected with auxiliary electrode by variable resistance box and to insert solution, and the negative pole of the test specimen and direct supply that are placed in baking oven is connected.
Variable resistor is automatically adjusted by control module, to ensure that test specimen both end voltage maintains-1.5V.Insert an other probe in electrolytic solution and be used for electrolytic solution current data in Real-time Collection test process, and real-time storage data are convenient to evaluate after test terminates.
This test macro (see Fig. 2) adopts NI voltage acquisition card PCI6221 and current acquisition card PCI6239.PCI6221 is 16, sampling rate 250kS/s, have the high speed voltage data collecting card of 10 passages.PCI6239 is 16, sampling rate 250kS/s, have the High-speed Electric flow data capture card of 8 passages.The voltage exported by voltage source is by being connected with the electrode at experimental tank two ends after variohm, and adjustment rheostat makes electrode both end voltage remain on-1.5V.13 pin of PCI6221 meet the current acquisition end PF10/P1.0 of test trough P1,15 pin meet the current acquisition end PF13/P1.3 of test trough P2,17 pin meet the current acquisition end PF16/P1.6 of test trough P3,32 pin meet the current acquisition end PF11/P1.1 of test trough P4, and 33 pin meet the current acquisition end PF12/P1.2 of test trough P5; DGND14, DGND16, DGND18 of PCI6221 connect the platinum electrode of P1-P5; 32 pin of PCI6239 meet the mercurous chloride electrode PF11/P0.1 (input) of test trough P1,33 pin meet the mercurous chloride electrode PF12/P0.2 (input) of test trough P2,34 pin meet the mercurous chloride electrode PF14/P0.4 (input) of test trough P3,13 pin meet the mercurous chloride electrode PF10/P0.0 (input) of test trough P4, and 15 pin meet the mercurous chloride electrode PF13/P0.03 (input) of test trough P5.The voltage exported by voltage source is by being connected with the electrode at test trough two ends after variohm, namely voltage source meets the PF10/P1.0 of P1 again after exporting and meeting variohm R1, the PF13/P1.3 of P2 is met again after meeting variohm R2, the PF14/P0.4 (input) of P3 is met again after meeting variohm R3, the PF11/P1.1 of P4 is met again after meeting variohm R4, meet the PF12/P1.2 of P5 after meeting variohm R5 again, adjustment rheostat makes electrode both end voltage remain on-1.5V.The a-road-through road of electrode two ends access PCI6221, keeps gathering at any time to voltage during test.Because the resistivity of solution changes during test, both end voltage can not be stablized, so regulate in real time variohm according to the magnitude of voltage of PCI6221 collection, to ensure that test voltage stabilizes to-1.5V.Insert the a-road-through road of PCI6239 in the electrolytic solution of test trough, Real-time Collection is carried out to electric current in electrolytic solution, be stored into disk system by PCI port by after computer disposal.
Wherein current acquisition card and voltage acquisition card have 24 data acquisition channels, can test 24 groups of test specimens simultaneously simultaneously;
Host computer develops special database and data processing software, carries out objective, science, effectively evaluating to test data.
Wherein current acquisition card and voltage acquisition card have 24 data acquisition channels, can test 24 groups of test specimens simultaneously simultaneously;
Host computer develops special database and data processing software, carries out objective, science, effectively evaluating to test data.
Wherein:
NI company PCI6221 chosen by voltage acquisition card, and its feature is as follows:
2 16, tunnels modulating output (833kS/s);
24 railway digital I/O lines; 32 digit counters;
Can trace to the source to the calibration certificate of NIST, and more than 70 signal condition option;
Association (Correlated) DIO (8 clock lines, 1MHz;
NI-MCal collimation technique improves measuring accuracy;
Separately there is the high precision M series of the high speed M of 5 sampling speed series and 4 resolutions available;
NI-DAQmx drive software and NILabVIEWSignalExpressLE interactive data logging software;
Annex: terminal box-bolt terminal SCB-68-776844-01; Cable-shielding SHC68-68-EPMCable (2m)-192061-02;
NI company PCI6239 chosen by current acquisition card, and its feature is as follows:
Unremitting group of 60VDC isolation, can bear the Isosorbide-5-Nitrae 00Vrms/1 of 5s, isolate between 950VDC passage to bus;
2 roads modulating output (0mA to 20mA), 16 bit resolutions, sampling rate 500kS/s;
6 railway digital inputs and 4 railway digitals export, 24V source voltage;
2 counter/timers, 32 bit resolutions, 80MHz; Digital triggering;
NI-MCal collimation technique improves measuring accuracy;
NI-DAQmx drive software and NILabVIEWSignalExpress interactive data logging software;
Annex: terminal box-bolt terminal CB-37F-HVD-779491-01; Cable-shielding SH37F-37MCable (1m)-778621-01.
This example is through test, and accurately and timely can grasp state during cathodic disbonding test, data accuracy, repdocutbility are high, achieve automatic real time on-line monitoring, and cost are lower.
Claims (1)
1. a steel pipeline anticorrosive coating cathodic disbonding resistance automatic testing system, is characterized in that it comprises specialized voltages data collecting card, current data capture card, pci bus, host computer, variable resistance box, voltage/current data collecting probe, direct supply, baking oven, test trough, electrolytic solution and electrode; Inject electrolytic solution by Valve controlling in the multiple test trough being placed in controllable temperature system, insert platinum electrode, mercurous chloride electrode and current data acquisition probe in electrolytic solution, under test specimen is placed in test trough; Platinum electrode is by being connected with the positive pole of direct supply after variable resistor, and the negative pole of direct supply connects with test specimen; Specialized voltages data collecting card, current data capture card are connected with analysis and Control system-host computer by pci bus, and voltage data acquisition probe is connected with mercurous chloride electrode end;
Variable resistor is automatically adjusted by control module, makes test specimen both end voltage maintain-1.5V; Insert an other probe in electrolytic solution and be used for electrolytic solution current data in Real-time Collection test process, and real-time storage data are convenient to evaluate after test terminates;
Be connected concentric to prefabricated plastic cylinder and test specimen with fluid sealant, and in test trough, add the NaCl electrolytic solution that concentration is 3%, liquid level sensor is positioned over test trough 4/5 place;
Described current data capture card and voltage data capture card have multiple data acquisition channel;
Adopt NI voltage acquisition card PCI6221 and current acquisition card PCI6239; PCI6221 is 16, sampling rate 250kS/s, have the high speed voltage data collecting card of 10 passages; PCI6239 is 16, sampling rate 250kS/s, have the High-speed Electric flow data capture card of 8 passages; The a-road-through road of current data acquisition probe and platinum electrode access PCI6221, keeps gathering at any time and ensureing that test voltage stabilizes to-1.5V to voltage; Insert the a-road-through road of mercurous chloride electrode and current data acquisition probe access PCI6239 in the electrolytic solution of test trough, Real-time Collection is carried out to electric current in electrolytic solution, is stored into disk system by PCI port by after computer disposal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110343691.1A CN103091242B (en) | 2011-11-03 | 2011-11-03 | Steel pipeline anticorrosive coating cathodic disbonding resistance automatic testing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110343691.1A CN103091242B (en) | 2011-11-03 | 2011-11-03 | Steel pipeline anticorrosive coating cathodic disbonding resistance automatic testing system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103091242A CN103091242A (en) | 2013-05-08 |
| CN103091242B true CN103091242B (en) | 2016-04-06 |
Family
ID=48204082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110343691.1A Active CN103091242B (en) | 2011-11-03 | 2011-11-03 | Steel pipeline anticorrosive coating cathodic disbonding resistance automatic testing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103091242B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2533344C1 (en) * | 2013-07-09 | 2014-11-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Пензенский государственный университет" (ФГБОУ ВПО "Пензенский государственный университет") | Installation for electrochemical survey of metal corrosion |
| CN108931474B (en) * | 2017-05-26 | 2021-03-09 | 中国石油天然气集团公司 | Coating life prediction method |
| CN110857873B (en) * | 2018-08-23 | 2022-02-01 | 中国石油天然气股份有限公司 | Natural gas flow detects uses anticorrosive device and natural gas flow detecting system |
| CN113340802B (en) * | 2020-03-02 | 2022-12-27 | 广州特种承压设备检测研究院 | Integrated cathode stripping test device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4504365A (en) * | 1982-11-01 | 1985-03-12 | The Kendall Company | Non-destructive cathodic disbondment testing of pipewrap coatings |
| CN1171549A (en) * | 1996-06-10 | 1998-01-28 | 本田技研工业株式会社 | Electrolytic test machine |
| CN2750317Y (en) * | 2004-12-09 | 2006-01-04 | 中国船舶重工集团公司第七二五研究所 | Multi-channel galvanic corrosion experiment data collecting device |
| CN2927038Y (en) * | 2006-07-23 | 2007-07-25 | 中国船舶重工集团公司第七二五研究所 | Reinforcing-bar concrete cathode protecting monitor |
| CN201852774U (en) * | 2010-09-08 | 2011-06-01 | 中国科学院金属研究所 | High-temperature high-pressure water circulation corrosion experiment system with automatic control function |
| CN202339314U (en) * | 2011-11-03 | 2012-07-18 | 中国石油天然气股份有限公司 | Steel pipeline anticorrosive coating cathodic disbonding resistance automatic testing system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2949681B2 (en) * | 1993-12-28 | 1999-09-20 | 川崎製鉄株式会社 | Heavy corrosion protection coated steel with excellent cathodic peel resistance |
-
2011
- 2011-11-03 CN CN201110343691.1A patent/CN103091242B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4504365A (en) * | 1982-11-01 | 1985-03-12 | The Kendall Company | Non-destructive cathodic disbondment testing of pipewrap coatings |
| CN1171549A (en) * | 1996-06-10 | 1998-01-28 | 本田技研工业株式会社 | Electrolytic test machine |
| CN2750317Y (en) * | 2004-12-09 | 2006-01-04 | 中国船舶重工集团公司第七二五研究所 | Multi-channel galvanic corrosion experiment data collecting device |
| CN2927038Y (en) * | 2006-07-23 | 2007-07-25 | 中国船舶重工集团公司第七二五研究所 | Reinforcing-bar concrete cathode protecting monitor |
| CN201852774U (en) * | 2010-09-08 | 2011-06-01 | 中国科学院金属研究所 | High-temperature high-pressure water circulation corrosion experiment system with automatic control function |
| CN202339314U (en) * | 2011-11-03 | 2012-07-18 | 中国石油天然气股份有限公司 | Steel pipeline anticorrosive coating cathodic disbonding resistance automatic testing system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103091242A (en) | 2013-05-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205175456U (en) | Quick analyzer for soil moisture content | |
| CN103091242B (en) | Steel pipeline anticorrosive coating cathodic disbonding resistance automatic testing system | |
| CN104863581B (en) | Circumferential conducting probe sensor and system for the full water number measurement of horizontal well performance | |
| CN201081764Y (en) | Remote soil resistivity monitor | |
| CN105527915A (en) | Thermal power plant real-time water affair monitoring system and monitoring method | |
| CN105699616A (en) | Multi-parameter water quality detecting and rating system and water quality rating method based on same | |
| CN108152597B (en) | Grounding electrode corrosion state diagnosis device and method based on relative grounding resistance | |
| CN104048914B (en) | A kind of monitor metal device of corrosion in different cement accidents | |
| CN206223771U (en) | A kind of seawater total alkalinity on-line monitoring system | |
| CN104568734A (en) | System for monitoring metal corrosion behaviors in flowing corrosive medium | |
| CN101710089B (en) | Method for measuring water content and mineralization degree of ionic conductor and apparatus thereof | |
| CN203241404U (en) | Automatic multi-parameter chemical reagent filling device of water quality online analyzer | |
| CN102818762B (en) | Oil-gas pipeline polarization potential monitoring device | |
| CN204346881U (en) | Metal erosion behavior monitoring system in Flow Corrosion medium | |
| CN202339314U (en) | Steel pipeline anticorrosive coating cathodic disbonding resistance automatic testing system | |
| CN203941128U (en) | The device of contents of residual chlorine in a kind of on-line measurement tap water | |
| CN102680544A (en) | Multi-parameter boiler water quality analysis method based on flow injection | |
| CN103471984A (en) | Simulation test device and simulation test method for corrosion resistance of protective coating | |
| CN204086286U (en) | Full automatic multiple parameter online water analysis instrument | |
| CN105911109A (en) | Method for online measurement of dissolved oxygen in water, and apparatus thereof | |
| CN202330401U (en) | Data acquisition and processing system of mobile platform for sewage biological treatment technique verification and evaluation | |
| CN102305815B (en) | Conductivity measuring device and measuring method for soil column test | |
| CN103983600A (en) | Digitalized carbon dioxide viewer for earthquake precursor monitoring | |
| CN110836790A (en) | Multi-channel automatic measuring device and method for centralized control room of in-situ leaching uranium mining area | |
| CN206553631U (en) | A kind of high-accuracy multifunctional pipeline cathode protection parameter detecting instrument |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211109 Address after: Room 08-10, 6 / F, block a, No. 5, Dongtucheng Road, Chaoyang District, Beijing 100013 Patentee after: National Petroleum and natural gas pipeline network Group Co.,Ltd. Address before: 100007 Oil Mansion, 9 North Avenue, Dongcheng District, Beijing, Dongzhimen Patentee before: PetroChina Company Limited |