CN202744630U - Long-acting polarization probe for pipeline cathodic protection - Google Patents
Long-acting polarization probe for pipeline cathodic protection Download PDFInfo
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- CN202744630U CN202744630U CN 201220337890 CN201220337890U CN202744630U CN 202744630 U CN202744630 U CN 202744630U CN 201220337890 CN201220337890 CN 201220337890 CN 201220337890 U CN201220337890 U CN 201220337890U CN 202744630 U CN202744630 U CN 202744630U
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- exocoel
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- 239000000523 sample Substances 0.000 title claims abstract description 34
- 230000010287 polarization Effects 0.000 title claims abstract description 25
- 238000004210 cathodic protection Methods 0.000 title abstract 2
- 238000012360 testing method Methods 0.000 claims abstract description 29
- 229920001940 conductive polymer Polymers 0.000 claims abstract description 21
- 238000005260 corrosion Methods 0.000 claims abstract description 18
- 239000010949 copper Substances 0.000 claims abstract description 16
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052802 copper Inorganic materials 0.000 claims abstract description 15
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical class [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims abstract description 11
- 230000007797 corrosion Effects 0.000 claims description 17
- 238000012856 packing Methods 0.000 claims description 6
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000002689 soil Substances 0.000 abstract description 6
- 230000007774 longterm Effects 0.000 abstract description 5
- 150000002500 ions Chemical class 0.000 abstract description 2
- 230000008595 infiltration Effects 0.000 abstract 1
- 238000001764 infiltration Methods 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 12
- 239000012528 membrane Substances 0.000 description 7
- 239000000919 ceramic Substances 0.000 description 2
- 229910000365 copper sulfate Inorganic materials 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 239000002322 conducting polymer Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910000366 copper(II) sulfate Inorganic materials 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000012047 saturated solution Substances 0.000 description 1
- 239000007784 solid electrolyte Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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Abstract
The utility model relates to a long-term polarization probe of pipeline cathodic protection. An inner cavity (2) is sleeved at the middle lower part in an outer cavity (1) and extends out of the outer cavity (1), and an ion conductive polymer (3) is fixed at the center of the bottom of the inner cavity (2); an inner cover (8) is arranged on the inner cavity (2), and an outer cover (7) is arranged on the outer cavity (1); the self-corrosion test piece (5) is fixed outside the outer cover (7), and the outer cover (7) and the outer cavity (1) are matched and sealed through threads and a gasket; the polarization test piece (4) and the inner cover (8) are matched and sealed with the inner cavity (2); the copper bar (9) is inserted into the inner cavity (2) from the top and sealed on the inner cover (8); the cable (6) penetrates from the outer cover (7) to the upper part of the outer cavity (1); the inner cavity (2) is filled with saturated copper sulfate solution (13). The utility model discloses avoided the infiltration of reference electrode solution to leak, the pellicle blocks up and the corruption of electrode, longe-lived, the polarization test block can in close contact with soil.
Description
Technical field
The utility model is the long-acting polarized probe of a kind of pipeline cathode protection.Relate to the tubing system technical field.
Background technology
At present; most of oil and gas pipes galvanic protection polarized probes adopt the micropore ceramics semi-permeable membranes to be used for the inside and outside electrolytical conducting of reference electrode; since allow solvent by under osmosis during through one section after date must cause oxidation and the ultimate failure of obstruction, pollution and the electrode of the leakage of reference electrode solution even semi-permeable membranes; although the dual-chamber structure of employing large volume and particular fillers can be alleviated this problem and prolong the work-ing life of polarized probe, can not address this problem at all.In addition, the polarization test piece of most of polarized probes is positioned at the lower surface of probe, the close contact of can't guarantee after the backfill to polarize test piece entire area and soil.
CN201319014Y discloses a kind of polarization-testing probe; " coal gas and heating power " the 4th phase of the 30th volume discloses a kind of " polarized probe is in the application of buried steel pipeline galvanic protection "; CN2915885Y discloses a kind of buried type copper/cupric sulfate reference electrode, but their life-span is all undesirable.
The utility model content
The long-acting polarized probe of pipeline cathode protection that the purpose of this utility model is a kind of seepage loss of avoiding reference electrode solution of design, semi-permeable membranes stops up and the burn into life-span of electrode is long, polarization test piece and soil can close contacts.
The utility model is by exocoel 1, inner chamber 2, ionic conductive polymer 3, polarization test piece 4, form from corrosion coupon 5, cable 6, enclosing cover 7, inner cap 8, copper rod 9, lead-in wire I 10, lead-in wire II 11, lead-in wire III 12, copper/saturated copper sulphate solution 13.Inner chamber 2 is enclosed within the middle and lower part of 1 li of exocoel and stretches out outside the exocoel 1, and ionic conductive polymer 3 is fixed on the bottom centre of inner chamber 2; Inner cap 8 is arranged on the inner chamber 2, enclosing cover 7 is arranged on the exocoel 1; Be fixed on the outside of enclosing cover 7 from corrosion coupon 5, enclosing cover 7 and exocoel 1 are by the sealing that coincide of screw thread and packing ring; Polarization test piece 4 and inner cap 8 all coincide by screw thread and packing ring with inner chamber 2 and seal; Copper rod 9 is from upper insertion inner chamber 2 and be sealed on the inner cap 8; Cable 6 penetrates into the top of exocoel 1 from enclosing cover 7, and cable 6 contains lead-in wire I 10, lead-in wire II 11 and lead-in wire III 12; Lead-in wire I 10 wherein connects from corrosion coupon 5, and lead-in wire II 11 connects polarization test piece 4, and lead-in wire III 12 connects copper rod 9; Copper/saturated copper sulphate solution 13 is housed in the inner chamber 2.Ionic conductive polymer 3 has guaranteed the conducting of copper/saturated copper sulphate solution 13 and extraneous medium and can measure current potential; Owing to do not exist solution leakage, semi-permeable membranes to stop up and the copper rod etching problem, guaranteed the long term life of polarized probe.
Described ionic conductive polymer 3 has broad variety and preparation method, equal existing commercialization finished product at home and abroad, and the present invention selects pipeline cathode protection to prepare polarized probe with the conductive polymers of material as ionic conductive polymer with flexible anode;
Described exocoel 1 has externally threaded for suitable for reading; The internal thread of exocoel 1 outside threaded holes suitable for reading and enclosing cover 7 coincide and seals;
Described inner chamber 2 is externally threaded cylinder for suitable for reading and end opening have;
Described exocoel 1 and inner chamber 2 are integral structures;
Described enclosing cover 7 and inner cap 8 are interior threaded cylinder; Enclosing cover 7 upper surfaces have internal thread hole and fairlead (see figure 2);
Described polarization test piece 4 is interior threaded ring plates;
Described have externally threaded disk from corrosion coupon 5.
The ion conductive material that the core of preparation pipeline cathode protection polarized probe has been to use impermeable water is as ionogen conducting parts, and these parts are not limited only to ionic conductive polymer, and also can adopt metal oxide is the solid electrolyte ceramic that matrix is fired; The reference electrode type of this galvanic protection polarized probe is not limited only to copper/copper sulfate saturated solution reference electrode, is equally applicable to the reference electrode of other types.
The utility model is a kind of pipeline cathode protection polarized probe, is applicable to detection and the long term monitoring of polarized probe break-make current potential and spontaneous potential in the pipeline cathode protection measuring process.
This pipeline cathode protection polarized probe has been avoided the corrosion of seepage loss, semi-permeable membranes obstruction and the electrode of reference electrode solution, has guaranteed the long term life of reference electrode.Simultaneously, polarization test piece and lay respectively at side and the upper surface of shell from corrosion coupon has guaranteed fully contacting of test piece and soil.
The beneficial effects of the utility model: a kind of oil and gas pipes galvanic protection polarized probe is provided; use ionic conductive polymer; it can also measure the current potential of polarization test piece by the ionogen inside and outside conducting polarized probe reference electrode in the situation of impermeable water; can avoid the in the past oxidation of leakage, semi-permeable membranes obstruction and pollution and the electrode of reference electrode solution, guarantee the permanently effective of polarized probe.Simultaneously, because impermeable structure, can be so that the polarized probe cavity volume reduces greatly.Polarization test piece and be conducive to the close contact of itself and soil from the upper surface that corrosion coupon lays respectively at the side of probe; In the area of polarization test piece surface-coated protective system control polarization test piece commonly used and the electric current demand that reduces to polarize.
Description of drawings
The long-acting polarized probe structural representation of Fig. 1 pipeline cathode protection
The synoptic diagram of Fig. 2-4 enclosing cover 7
1-exocoel, 2-inner chamber wherein
3-conductive polymers 4-polarization test piece
5-from corrosion coupon 6-cable
7-enclosing cover, 8-inner cap
9-copper rod 10-lead-in wire I
11-lead-in wire II 12-lead-in wire III
13-copper/saturated copper sulphate solution
Embodiment
Embodiment. this example is an experimental prototype, and it consists of as shown in Figure 1.
This example is by exocoel 1, inner chamber 2, ionic conductive polymer 3, polarization test piece 4, form from corrosion coupon 5, cable 6, enclosing cover 7, inner cap 8, copper rod 9, lead-in wire I 10, lead-in wire II 11, lead-in wire III 12, copper/saturated copper sulphate solution 13.Inner chamber 2 is enclosed within the middle and lower part of 1 li of exocoel and stretches out outside the exocoel 1, and ionic conductive polymer 3 is fixed on the bottom centre of inner chamber 2; Inner cap 8 is arranged on the inner chamber 2, enclosing cover 7 is arranged on the exocoel 1; Be fixed on the outside of enclosing cover 7 from corrosion coupon 5, enclosing cover 7 and exocoel 1 are by the sealing that coincide of screw thread and packing ring; Polarization test piece 4 and inner cap 8 all coincide by screw thread and packing ring with inner chamber 2 and seal; Copper rod 9 is from upper insertion inner chamber 2 and be sealed on the inner cap 8; Cable 6 penetrates into the top of exocoel 1 from enclosing cover 7, and cable 6 contains lead-in wire I 10, lead-in wire II 11 and lead-in wire III 12; Lead-in wire I 10 wherein connects from corrosion coupon 5, and lead-in wire II 11 connects polarization test piece 4, and lead-in wire III 12 connects copper rod 9; Copper/saturated copper sulphate solution 13 is housed in the inner chamber 2.
Wherein:
Ionic conductive polymer adopts certain import conducting polymer materials, and 1 cm long, 8 mm dia column conductive polymerss prepare shell 1 as ionic conductive polymer;
Exocoel 1 adopts polyvinyl chloride to make Ф 50mm, the drum of high 100mm, and bucket wall thickness 2mm, suitable for reading have a M50mm outside screw;
Inner chamber 2 adopts polyvinyl chloride to make Ф 40mm, the drum of high 80mm, and bucket wall thickness 2mm, suitable for reading and end opening has outside screw, M40mm suitable for reading, end opening M40mm;
Polarization have centered by the test piece 4 Ф 40mm hole, in the ring plate of M40mm screw thread wall thickness 3mm is arranged; Polarization test piece outside surface applies common epoxy-based lacquers control polarization area;
From corrosion coupon 5 for the disk of outside screw M10mm is arranged;
Enclosing cover 7 has the M50mm screw thread in suitable for reading, upper surface one side have Ф 10mm hole, in have M10mm screw thread, thread center that the lid of Ф 5mm through hole is arranged;
Inner cap 8 is the outer lid that the M40mm screw thread is arranged suitable for reading;
Copper rod 9 is Ф 3 * 50mm red copper bar.
This example is through test, and this pipeline cathode protection polarized probe has been avoided the corrosion of seepage loss, semi-permeable membranes obstruction and the electrode of reference electrode solution, and the life-span of reference electrode is long.Test piece contacts well with soil, satisfies the needs of potential measurement and long term monitoring.
Claims (8)
1. long-acting polarized probe of pipeline cathode protection is characterized in that it is by exocoel (1), inner chamber (2), ionic conductive polymer (3), polarization test piece (4), form from corrosion coupon (5), cable (6), enclosing cover (7), inner cap (8), copper rod (9), lead-in wire I (10), lead-in wire II (11), lead-in wire III (12), copper/saturated copper sulphate solution (13); Inner chamber (2) is enclosed within the inner middle and lower part of exocoel (1) and stretches out outside the exocoel (1), and ionic conductive polymer (3) is fixed on the bottom centre of inner chamber (2); Inner cap (8) is arranged on the inner chamber (2), enclosing cover (7) is arranged on the exocoel (1); Be fixed on the outside of enclosing cover (7) from corrosion coupon (5), enclosing cover (7) and exocoel (1) are by the sealing that coincide of screw thread and packing ring; Polarization test piece (4) and inner cap (8) all coincide by screw thread and packing ring with inner chamber (2) and seal; Copper rod (9) is from upper insertion inner chamber (2) and be sealed on the inner cap (8); Cable (6) penetrates into the top of exocoel (1) from enclosing cover (7), and cable (6) contains lead-in wire I (10), lead-in wire II (11) and the III (12) that goes between; Lead-in wire I (10) wherein connects from corrosion coupon (5), and lead-in wire II (11) connects polarization test piece (4), and lead-in wire III (12) connects copper rod (9); Copper/saturated copper sulphate solution (13) is housed in the inner chamber (2).
2. the long-acting polarized probe of a kind of pipeline cathode protection according to claim 1 is characterized in that described ionic conductive polymer (3) selects pipeline cathode protection to prepare polarized probe with the conductive polymers of material as ionic conductive polymer with flexible anode.
3. the long-acting polarized probe of a kind of pipeline cathode protection according to claim 1 is characterized in that described exocoel (1) has externally threaded for suitable for reading, and the internal thread of exocoel (1) outside threaded holes suitable for reading and enclosing cover (7) coincide and seals.
4. the long-acting polarized probe of a kind of pipeline cathode protection according to claim 1 is characterized in that described inner chamber (2) has the cylinder of outside threaded holes for suitable for reading and end opening.
5. the long-acting polarized probe of a kind of pipeline cathode protection according to claim 1 is characterized in that described exocoel (1) and inner chamber (2) are integral structures.
6. the long-acting polarized probe of a kind of pipeline cathode protection according to claim 1 is characterized in that described enclosing cover (7) and inner cap (8) are interior threaded cylinder; Enclosing cover (7) upper surface has internal thread hole and fairlead.
7. the long-acting polarized probe of a kind of pipeline cathode protection according to claim 1 is characterized in that described polarization test piece (4) is interior threaded ring plate.
8. the long-acting polarized probe of a kind of pipeline cathode protection according to claim 1, it is characterized in that described from corrosion coupon (5) for externally threaded disk is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220337890 CN202744630U (en) | 2012-07-12 | 2012-07-12 | Long-acting polarization probe for pipeline cathodic protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220337890 CN202744630U (en) | 2012-07-12 | 2012-07-12 | Long-acting polarization probe for pipeline cathodic protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202744630U true CN202744630U (en) | 2013-02-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220337890 Expired - Lifetime CN202744630U (en) | 2012-07-12 | 2012-07-12 | Long-acting polarization probe for pipeline cathodic protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202744630U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103540940A (en) * | 2012-07-12 | 2014-01-29 | 中国石油天然气股份有限公司 | Long-acting polarization probe for pipeline cathodic protection |
| CN106610398A (en) * | 2017-01-12 | 2017-05-03 | 青岛双瑞海洋环境工程股份有限公司 | Buried anti-compression anti-seepage anti-dragging copper/copper sulfate reference electrode with long service life |
| WO2020244107A1 (en) * | 2019-06-05 | 2020-12-10 | 西安英柯迈信息技术有限公司 | Cathode protection test probe |
| CN114002287A (en) * | 2021-09-29 | 2022-02-01 | 天津哈德韦尔自控技术有限公司 | Long-acting reference electrode |
| IT202100011345A1 (en) * | 2021-05-04 | 2022-11-04 | Cmp Group S R L | Reference electrode for monitoring the cathodic protection of metallic structures, in particular underground and/or submarine structures |
-
2012
- 2012-07-12 CN CN 201220337890 patent/CN202744630U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103540940A (en) * | 2012-07-12 | 2014-01-29 | 中国石油天然气股份有限公司 | Long-acting polarization probe for pipeline cathodic protection |
| CN103540940B (en) * | 2012-07-12 | 2015-08-12 | 中国石油天然气股份有限公司 | Long-acting polarization probe for pipeline cathodic protection |
| CN106610398A (en) * | 2017-01-12 | 2017-05-03 | 青岛双瑞海洋环境工程股份有限公司 | Buried anti-compression anti-seepage anti-dragging copper/copper sulfate reference electrode with long service life |
| WO2020244107A1 (en) * | 2019-06-05 | 2020-12-10 | 西安英柯迈信息技术有限公司 | Cathode protection test probe |
| IT202100011345A1 (en) * | 2021-05-04 | 2022-11-04 | Cmp Group S R L | Reference electrode for monitoring the cathodic protection of metallic structures, in particular underground and/or submarine structures |
| CN114002287A (en) * | 2021-09-29 | 2022-02-01 | 天津哈德韦尔自控技术有限公司 | Long-acting reference electrode |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |