CN110184611B - Sacrificial anode consumption monitoring device and monitoring method - Google Patents
Sacrificial anode consumption monitoring device and monitoring method Download PDFInfo
- Publication number
- CN110184611B CN110184611B CN201910465456.8A CN201910465456A CN110184611B CN 110184611 B CN110184611 B CN 110184611B CN 201910465456 A CN201910465456 A CN 201910465456A CN 110184611 B CN110184611 B CN 110184611B
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- China
- Prior art keywords
- sacrificial anode
- protective
- height
- protective shell
- monitoring method
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000012544 monitoring process Methods 0.000 title claims abstract description 18
- 230000001681 protective effect Effects 0.000 claims abstract description 50
- 229910052751 metal Inorganic materials 0.000 claims abstract description 30
- 239000002184 metal Substances 0.000 claims abstract description 30
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims description 6
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 6
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 229910000971 Silver steel Inorganic materials 0.000 claims description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052738 indium Inorganic materials 0.000 claims description 3
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052697 platinum Inorganic materials 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 239000011701 zinc Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 2
- 238000000465 moulding Methods 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004210 cathodic protection Methods 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
- C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
- C23F13/06—Constructional parts, or assemblies of cathodic-protection apparatus
- C23F13/08—Electrodes specially adapted for inhibiting corrosion by cathodic protection; Manufacture thereof; Conducting electric current thereto
- C23F13/22—Monitoring arrangements therefor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Prevention Of Electric Corrosion (AREA)
Abstract
The invention discloses a sacrificial anode consumption monitoring device and a sacrificial anode consumption monitoring method. The monitoring device comprises an iron core and a sacrificial anode, wherein the iron core penetrates through the sacrificial anode, a plurality of protective shells are arranged along the length direction of the iron core, a metal core is arranged in each protective shell, a transverse through hole is formed in the side face of each protective shell, and the heights of the transverse through holes on all the protective shells are sequentially reduced; the protective shell and the sacrificial anode are poured into a whole, and a wire connected to the metal core is led out from the upper part of the protective shell after pouring and molding. According to the invention, specific loss depth of the sacrificial anode can be judged through the potential signals between the metal cores and the protected objects at different positions received by the potential monitoring device, and the staged consumption condition of the sacrificial anode can be effectively monitored.
Description
Technical Field
The invention belongs to the field of metal corrosion prevention monitoring, and particularly relates to a sacrificial anode consumption monitoring device and a monitoring method.
Background
Steel structures of marine and oil drilling platforms are in marine environments and can be subject to corrosive damage from marine environments. The cathodic protection method of the sacrificial anode is an effective method for protecting metal from corrosion, but the sacrificial anode cannot effectively monitor the consumption condition during the use process, thereby increasing the maintenance and anode manufacturing cost.
Disclosure of Invention
In view of the foregoing problems of the prior art, it is an object of the present invention to provide a monitoring device capable of monitoring the consumption of a sacrificial anode, which can effectively monitor the consumption of the sacrificial anode to save cost.
In order to achieve the above object, the present invention provides the following technical solutions: the sacrificial anode consumption monitoring device comprises an iron core and a sacrificial anode, wherein the iron core penetrates through the sacrificial anode, a plurality of protecting shells are arranged along the length direction of the iron core, a metal core is arranged in each protecting shell, a transverse through hole is formed in the side surface of each protecting shell, and the heights of the transverse through holes on all the protecting shells are sequentially reduced; the protective shell and the sacrificial anode are poured into a whole, and a wire connected to the metal core is led out from the upper part of the protective shell after pouring and molding.
When the invention protects the metal structure in seawater, the consumption condition of the sacrificial anode can be monitored in real time in the use process of the sacrificial anode.
Further, the protective housing fix on the iron core surface.
Further, the lead-out position of the wire is insulated.
Further, the material of the protective housing is an insulating waterproof material.
Furthermore, the material of the protective shell is ceramic, and has the characteristics of insulation, water resistance, high pressure resistance, high strength and the like.
Furthermore, the sacrificial anode is mainly made of aluminum oxide, and is doped with zinc, indium, silicon, copper and iron elements to form an aluminum alloy sacrificial anode, so that the aluminum alloy sacrificial anode has a good cathode protection effect.
Further, the metal core is made of platinum, silver or stainless steel, and has the characteristics of conductivity, corrosion resistance, oil stain resistance and the like.
Further, the height difference between the transverse through holes on the two adjacent protective shells is: 1/(number of protective shells plus 1) sacrificial anode height.
Further, the number of the protection shells is 4, the height of the transverse through holes of the first protection shell from the top end of the protection shell is 1/5 of the height of the sacrificial anode, the height of the transverse through holes of the second protection shell from the top end of the protection shell is 2/5 of the height of the sacrificial anode, the height of the transverse through holes of the third protection shell from the top end of the protection shell is 3/5 of the height of the sacrificial anode, and the height of the transverse through holes of the fourth protection shell from the top end of the protection shell is 4/5 of the height of the sacrificial anode.
The invention also provides a monitoring method using the sacrificial anode consumption monitoring device, which comprises the following steps:
welding an iron core on the surface of a protected object, and connecting wires led out by all metal cores with an external potential monitoring device; the lateral through hole of the first protective shell is 1/5 of the height of the sacrificial anode from the top end, the lateral through hole of the second protective shell is 2/5 of the height of the sacrificial anode from the top end, and so on; along with the consumption of the sacrificial anode, when a stable potential difference is detected between the first metal core and the protected object, the sacrificial anode is 1/5 of the sacrificial anode in height, and the specific loss depth of the sacrificial anode is judged through potential signals between the metal cores and the protected object at different positions received by the potential monitoring device, so that the consumption condition of the sacrificial anode is effectively monitored.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, specific loss depth of the sacrificial anode can be judged through the potential signals between the metal cores and the protected objects at different positions received by the potential monitoring device, and the staged consumption condition of the sacrificial anode can be effectively monitored; the measuring accuracy is high, the monitoring effect is good, and the data is reliable.
2. The invention does not need to modify the original sacrificial anode cathode protection device and method, can be additionally arranged on the original cathode protection device, can also be additionally arranged when the anode is welded for the first time, and has simple installation and use and low cost.
Drawings
FIG. 1 is a schematic diagram of a sacrificial anode consumption monitoring device according to the present invention;
FIG. 2 is a schematic diagram of a sacrificial anode-free consumption monitoring device according to the present invention;
FIG. 3 is a cross-sectional view of a sacrificial anode-not-cast consumption monitoring device of the present invention;
wherein the reference numerals are as follows: 1-sacrificial anode, 2-protective shell, 3-metal core, 4-iron core, 5-transverse through hole and 6-wire.
Detailed Description
The following describes the embodiments of the present invention further with reference to the drawings.
As shown in fig. 1, the sacrificial anode consumption monitoring device provided by the invention consists of a sacrificial anode 1, a protective shell 2, a metal core 3 and an iron core 4, wherein the iron core 4 penetrates through the sacrificial anode 1, the reliability of the whole device is high, and the consumption condition of the sacrificial anode can be monitored in real time in the use process of the sacrificial anode.
4 protective shells 2 are arranged along the length direction of the iron core 4, each protective shell is internally provided with a metal core 3, the side surface of each protective shell is provided with a transverse through hole 5, and the heights of the transverse through holes on all the protective shells are sequentially reduced; the protective shell 2 and the sacrificial anode 1 are cast into a whole, and a wire connected to the metal core 3 is led out from the upper part of the protective shell 2 after casting. The protective housing 2 fix on iron core 4 surface.
The lead-out position of the wire is insulated, so that no metal surface is exposed.
The protective shell is made of ceramic and has the characteristics of insulation, water resistance, high pressure resistance, high strength and the like.
The sacrificial anode is mainly made of aluminum oxide, and is doped with zinc, indium, silicon, copper and iron elements to form an aluminum alloy sacrificial anode, so that the sacrificial anode has a good cathode protection effect.
The metal core 3 may be made of platinum, or may be made of an inert metal such as silver or stainless steel, or an alloy material, and has the characteristics of conductivity, corrosion resistance, oil stain resistance, and the like.
As shown in fig. 2 and 3, the protective case 2 with the metal core 3 embedded therein is fixed to the surface of the iron core 4 before casting. Only one transverse through hole is reserved on the side face of the protective shell 2 and can be contacted with the outside.
The first protective shell has a lateral through hole with a height of 1/5 sacrificial anode from its top end, the second protective shell has a lateral through hole with a height of 2/5 sacrificial anode from its top end, the third protective shell has a lateral through hole with a height of 3/5 sacrificial anode from its top end, and the fourth protective shell has a lateral through hole with a height of 4/5 sacrificial anode from its top end.
During installation, the sacrificial anode monitoring device is welded on the surface of a protected object through the iron core 4, and the lead-out wire is connected with an external potential monitoring device.
The monitoring method using the sacrificial anode consumption monitoring device comprises the following steps:
the iron core 4 is welded on the surface of a protected object, and all wires led out by the metal cores 3 are connected with an external potential monitoring device; the lateral through hole of the first protective shell is 1/5 of the height of the sacrificial anode (such as 2 cm) from the top end, the lateral through hole of the second protective shell is 2/5 of the height of the sacrificial anode (such as 4 cm) from the top end, and so on; along with the consumption of the sacrificial anode, when a stable potential difference is detected between the first metal core and the protected object, the sacrificial anode is 1/5 of the sacrificial anode in height (such as 2 cm), and the specific loss depth of the sacrificial anode is judged through potential signals between the metal cores and the protected object at different positions received by the potential monitoring device, so that the consumption condition of the sacrificial anode is effectively monitored.
It will be readily appreciated by those skilled in the art that the foregoing description is merely a preferred embodiment of the invention and is not intended to limit the invention, but any modifications, equivalents, improvements or alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (9)
1. The sacrificial anode consumption monitoring method is characterized in that the sacrificial anode consumption monitoring device comprises an iron core (4) and a sacrificial anode (1), wherein the iron core (4) penetrates through the sacrificial anode (1), a plurality of protective shells (2) are arranged along the length direction of the iron core (4), a metal core (3) is arranged in each protective shell, a transverse through hole (5) is formed in the side face of each protective shell, and the heights of the transverse through holes on all the protective shells are sequentially reduced; the protective shell (2) and the sacrificial anode (1) are cast into a whole, and a lead (6) connected to the metal core (3) is led out from the upper part of the protective shell (2) after casting;
the monitoring method using the sacrificial anode consumption monitoring device comprises the following steps:
welding an iron core (4) on the surface of a protected object, and connecting wires led out by all the metal cores (3) with an external potential monitoring device; the lateral through hole of the first protective shell is 1/5 of the height of the sacrificial anode from the top end, the lateral through hole of the second protective shell is 2/5 of the height of the sacrificial anode from the top end, and so on; along with the consumption of the sacrificial anode, when a stable potential difference is detected between the first metal core and the protected object, the sacrificial anode is 1/5 of the sacrificial anode in height, and the specific loss depth of the sacrificial anode is judged through potential signals between the metal cores and the protected object at different positions received by the potential monitoring device, so that the consumption condition of the sacrificial anode is effectively monitored.
2. The sacrificial anode consumption monitoring method according to claim 1, wherein the protective shell (2) is fixed on the surface of the iron core (4).
3. The sacrificial anode consumption monitoring method according to claim 1, characterized in that the lead-out position of the wire (6) is insulated.
4. A sacrificial anode consumption monitoring method according to any one of claims 1-3, wherein the material of the protective casing is an insulating waterproof material.
5. The sacrificial anode consumption monitoring method of claim 4, wherein the material of the protective shell is ceramic.
6. A sacrificial anode consumption monitoring method according to any one of claims 1-3, characterized in that the sacrificial anode (1) is mainly made of aluminum oxide, and is doped with zinc, indium, silicon, copper and iron elements to form an aluminum alloy sacrificial anode.
7. A sacrificial anode consumption monitoring method according to any one of claims 1-3, characterized in that the metal core (3) is made of platinum, silver or stainless steel.
8. A sacrificial anode consumption monitoring method according to any one of claims 1-3, wherein the height difference between the lateral through holes in adjacent two protective shells is: 1/(number of protective shells plus 1) sacrificial anode height.
9. The method of claim 8, wherein the number of the protective cases is 4, the first protective case has a lateral through hole at 1/5 sacrificial anode height from its top end, the second protective case has a lateral through hole at 2/5 sacrificial anode height from its top end, the third protective case has a lateral through hole at 3/5 sacrificial anode height from its top end, and the fourth protective case has a lateral through hole at 4/5 sacrificial anode height from its top end.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910465456.8A CN110184611B (en) | 2019-05-30 | 2019-05-30 | Sacrificial anode consumption monitoring device and monitoring method |
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| CN201910465456.8A CN110184611B (en) | 2019-05-30 | 2019-05-30 | Sacrificial anode consumption monitoring device and monitoring method |
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| CN110184611A CN110184611A (en) | 2019-08-30 |
| CN110184611B true CN110184611B (en) | 2024-02-27 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201678735U (en) * | 2010-03-25 | 2010-12-22 | 葛德涌 | Water heater anode rod capable of detecting and prompting anode material consumption |
| KR101606417B1 (en) * | 2015-04-01 | 2016-03-25 | 한국에너지기술연구원 | Method for preventing corrision of ground heat exchange system using sacrificial anode |
| CN207158011U (en) * | 2017-03-29 | 2018-03-30 | 李根照 | A kind of movable oil tank sacrificial anode |
| CN207581946U (en) * | 2017-11-09 | 2018-07-06 | 广州发展集团股份有限公司 | Cathodic protection data Telemetry System Used in Pipeline and pipe safety guard system |
| CN207760428U (en) * | 2017-12-20 | 2018-08-24 | 青岛新奥燃气设施开发有限公司 | A kind of valve of gas pipeline cathodic protection monitoring device |
| JP2018173032A (en) * | 2017-03-31 | 2018-11-08 | 株式会社荏原製作所 | Pump, sacrificial anode, and remaining life prediction method for sacrificial anode |
| CN210134167U (en) * | 2019-05-30 | 2020-03-10 | 杭州意能电力技术有限公司 | Sacrificial anode consumption monitoring device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7857949B2 (en) * | 2008-01-29 | 2010-12-28 | Bernard Closset | Sacrificial anode with resistor assembly for metal tank corrosion protection |
| US9797049B2 (en) * | 2015-02-16 | 2017-10-24 | Electric Power Research Institute, Inc. | System, apparatus, and method of providing cathodic protection to buried and/or submerged metallic structures |
-
2019
- 2019-05-30 CN CN201910465456.8A patent/CN110184611B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201678735U (en) * | 2010-03-25 | 2010-12-22 | 葛德涌 | Water heater anode rod capable of detecting and prompting anode material consumption |
| KR101606417B1 (en) * | 2015-04-01 | 2016-03-25 | 한국에너지기술연구원 | Method for preventing corrision of ground heat exchange system using sacrificial anode |
| CN207158011U (en) * | 2017-03-29 | 2018-03-30 | 李根照 | A kind of movable oil tank sacrificial anode |
| JP2018173032A (en) * | 2017-03-31 | 2018-11-08 | 株式会社荏原製作所 | Pump, sacrificial anode, and remaining life prediction method for sacrificial anode |
| CN207581946U (en) * | 2017-11-09 | 2018-07-06 | 广州发展集团股份有限公司 | Cathodic protection data Telemetry System Used in Pipeline and pipe safety guard system |
| CN207760428U (en) * | 2017-12-20 | 2018-08-24 | 青岛新奥燃气设施开发有限公司 | A kind of valve of gas pipeline cathodic protection monitoring device |
| CN210134167U (en) * | 2019-05-30 | 2020-03-10 | 杭州意能电力技术有限公司 | Sacrificial anode consumption monitoring device |
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