CN203849201U - Platform corrosion potential measuring device - Google Patents
Platform corrosion potential measuring device Download PDFInfo
- Publication number
- CN203849201U CN203849201U CN201420108370.2U CN201420108370U CN203849201U CN 203849201 U CN203849201 U CN 203849201U CN 201420108370 U CN201420108370 U CN 201420108370U CN 203849201 U CN203849201 U CN 203849201U
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- platform
- measuring
- corrosion potential
- reference electrode
- cable
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Abstract
The utility model discloses a platform corrosion potential measuring device belonging to the technical field of electrochemical protection. The platform corrosion potential measuring device comprises a measuring instrument, a measuring box, a cable wheel and a reference electrode, wherein the measuring box is electrically connected with a spud leg of a platform, the cable wheel is electrically connected with the reference electrode through a cable; during measurement, the reference electrode is immersed undersea, is electrically connected with a first binding post on the measuring instrument and an electric conductor on the measuring box by using a first measuring wire, and is electrically connected with a second binding pot on the measuring instrument and an electric conductor on the cable wheel by using a second measuring wire. The platform corrosion potential measuring device is simple in structure, convenient to use, and capable of effectively monitoring a corrosion potential of an underground member of the platform and a pipeline. According to a measuring result, the effect of original anodic sacrifice protection can be judged.
Description
Technical field
The utility model relates to a kind of platform corrosion potential measurement mechanism, belongs to electrochemical protection technical field.
Technical background
Metal construction on existing offshore platform is mainly the platform leg of support platform and the pipeline under the ocean of transfer oil, underwater portion, and their major parts have all been done galvanic anode protection, prevent corrosion.But, lack the proving installation that can measure this pipe-to-soil potential (protection effect).
The measurement of pipe-to-soil potential has three kinds of meanings:
1, the pipe-to-soil potential that does not add cathodic protection is the corrosive parameter of measuring media (seawater).
2, the pipe-to-soil potential that applies cathodic protection is an important parameter that judges cathodic protection degree.
3,, in the time having interference, it is the important indicator of annoyance level that pipe-to-soil potential changes.
These parameters are very important for the safety of platform and oil pipe.The galvanic corrosion of steel construction seawater.The corrosion and ageing of ferrous materials, causes that structural behaviour is deteriorated, depression of bearing force, endurance quality reduce, and has a strong impact on the performance of platform and oil pipe normal function, shortens its serviceable life, and maintenance reconstruction expenses is huge.
Summary of the invention
In order to overcome problems of the prior art, the utility model provides a kind of platform corrosion potential measurement mechanism, and this measurement mechanism should be simple in structure, easy to use, effectively the corrosion potential of monitoring platform underwater components and pipeline.
The technical solution adopted in the utility model is: a kind of platform corrosion potential measurement mechanism, comprise measuring instrument, also comprise measuring box, cable wheel and reference electrode, described measuring box is electrically connected with platform leg, and cable wheel is electrically connected with reference electrode by cable; In the time measuring, reference electrode passes from the cable duct tube being fixed on platform, be immersed under sea, with the first binding post on the first slotted line electrical connection measuring instrument and the electric conductor on measuring box, with the second binding post on the second slotted line electrical connection measuring instrument and the electric conductor on cable wheel.
Described reference electrode adopts the structure of cable welding on Ag/AgCl contrast electrode piece.
The beneficial effects of the utility model are: this platform corrosion potential measurement mechanism comprises measuring instrument, measuring box, cable wheel and reference electrode, and measuring box is electrically connected with platform leg, and cable wheel is electrically connected with reference electrode by cable; In the time measuring, reference electrode is immersed under sea, with the first binding post on the first slotted line electrical connection measuring instrument and the electric conductor on measuring box, with the second binding post on the second slotted line electrical connection measuring instrument and the electric conductor on cable wheel.This measurement mechanism is simple in structure, easy to use, effectively the corrosion potential of monitoring platform underwater components and pipeline.According to measurement result, can judge the effect of original sacrificial protection.
Brief description of the drawings
Fig. 1 is a kind of schematic diagram of platform corrosion potential measurement mechanism.
In figure: 1, measuring instrument, 1a, the first binding post, 1b, the second binding post, 2, the first slotted line, 2a, the second slotted line, 3, measuring box, 4, cable wheel, 5, cable, 6, reference electrode, 7, cable duct tube, 8, platform leg, 9, platform, 10, sea.
embodiment:
Fig. 1 shows a kind of platform corrosion potential measurement mechanism.In figure, platform corrosion potential measurement mechanism comprises measuring instrument 1, measuring box 3, cable wheel 4 and reference electrode 6.Measuring box 3 adopts welding manner to be electrically connected with platform leg 8, and cable wheel 4 is electrically connected with reference electrode 6 by cable 5, and reference electrode 6 adopts cable 5 to be welded on the structure on Ag/AgCl contrast electrode piece.
Measuring instrument 1 is selected corrosion potential measuring instrument, is used for the current potential of potential electrode, and black pen (the first binding post 1a) is connected on the measurement point of measuring box 3, and red pen (the second slotted line 2a) is connected on the output terminal of reference electrode.Input impedance is greater than 10
13Ω, three Semi-digitals show.
Measuring box 3 is electrically connected on the metallic structures under tested sea.
On the Ag/AgCl contrast electrode piece that reference electrode 6 adopts cable 5 to be welded on to prepare, shell uses PP-R pipe, fixes all parts position according to design.Compaction material, the filling epoxy resin mixing up in advance, covers the welding portion of electrode block.Then thermoplastic pipeline is tied up, whole packaged electrode is put into drying baker, arrange 70 DEG C, baking is taken out then cooling air-drying after half an hour, until epoxy resin cure.
In the time measuring, reference electrode 6 passes from the cable duct tube 7 being fixed on platform 9, be immersed in sea 10 times, be electrically connected the electric conductor on the first binding post 1a and the measuring box 3 on measuring instrument 1 with the first slotted line 2, with the second binding post 1b on the second slotted line 2a electrical connection measuring instrument 1 and the electric conductor on cable wheel 4.The corrosion potential of high resistant corrosion potential measuring instrument display platform underwater components and pipeline.
Above-mentioned measurement mechanism is applied on certain platform, by measuring, has found that in time galvanic anode protection current potential declines, and result can cause conduit collapsed by corrosion.In order to keep the safety in production, supplement in time sacrificial anode, avoid the generation of accident.
On China's South Sea platform, for the corrosion potential of monitoring platform conduit and oil pipeline, according to measurement result, can judge the corrosion potential of platform conduit and oil pipeline, can also judge the effect of original sacrificial protection.
Claims (2)
1. a platform corrosion potential measurement mechanism, comprise measuring instrument (1), it is characterized in that: also comprise measuring box (3), cable wheel (4) and reference electrode (6), described measuring box (3) is electrically connected with platform leg (8), and cable wheel (4) is electrically connected with reference electrode (6) by cable (5); In the time measuring, reference electrode (6) passes from the cable duct tube (7) being fixed on platform (9), be immersed under sea (10), with the first binding post (1a) on the first slotted line (2) electrical connection measuring instrument (1) and the electric conductor on measuring box (3), with the electric conductor on the second binding post (1b) on the second slotted line (2a) electrical connection measuring instrument (1) and cable wheel (4).
2. a kind of platform corrosion potential measurement mechanism according to claim 1, is characterized in that: described reference electrode (6) adopts cable (5) to be welded on the structure on Ag/AgCl contrast electrode piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420108370.2U CN203849201U (en) | 2014-03-10 | 2014-03-10 | Platform corrosion potential measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420108370.2U CN203849201U (en) | 2014-03-10 | 2014-03-10 | Platform corrosion potential measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203849201U true CN203849201U (en) | 2014-09-24 |
Family
ID=51562203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420108370.2U Expired - Fee Related CN203849201U (en) | 2014-03-10 | 2014-03-10 | Platform corrosion potential measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203849201U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109323131A (en) * | 2018-12-03 | 2019-02-12 | 北京市燃气集团有限责任公司 | A kind of gas ductwork metro stray current Interference Detection system and its method for arranging |
| CN109470933A (en) * | 2018-11-05 | 2019-03-15 | 苏州热工研究院有限公司 | Half submerges the multi-channel surface reference potential wireless acquisition device of rotation mechanism |
| CN116791090A (en) * | 2023-08-29 | 2023-09-22 | 山东德瑞防腐材料有限公司 | Split type cathode protection and detection method in marine environment |
-
2014
- 2014-03-10 CN CN201420108370.2U patent/CN203849201U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109470933A (en) * | 2018-11-05 | 2019-03-15 | 苏州热工研究院有限公司 | Half submerges the multi-channel surface reference potential wireless acquisition device of rotation mechanism |
| CN109323131A (en) * | 2018-12-03 | 2019-02-12 | 北京市燃气集团有限责任公司 | A kind of gas ductwork metro stray current Interference Detection system and its method for arranging |
| CN109323131B (en) * | 2018-12-03 | 2021-04-09 | 北京市燃气集团有限责任公司 | Gas pipe network subway stray current interference detection system and arrangement method thereof |
| CN116791090A (en) * | 2023-08-29 | 2023-09-22 | 山东德瑞防腐材料有限公司 | Split type cathode protection and detection method in marine environment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140924 Termination date: 20210310 |