CN111378976A - Novel reference electrode is fixed device - Google Patents
Novel reference electrode is fixed device Download PDFInfo
- Publication number
- CN111378976A CN111378976A CN201811617800.2A CN201811617800A CN111378976A CN 111378976 A CN111378976 A CN 111378976A CN 201811617800 A CN201811617800 A CN 201811617800A CN 111378976 A CN111378976 A CN 111378976A
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- CN
- China
- Prior art keywords
- reference electrode
- flange
- sealing cover
- lead
- novel
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims abstract description 52
- 239000013535 sea water Substances 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims description 5
- 229920002943 EPDM rubber Polymers 0.000 claims description 3
- 239000011148 porous material Substances 0.000 abstract description 5
- 238000005536 corrosion prevention Methods 0.000 abstract description 4
- 238000004210 cathodic protection Methods 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910021607 Silver chloride Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 description 1
Images
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
Abstract
The invention belongs to the technical field of corrosion prevention of seawater pipelines of nuclear power plants, and particularly relates to a novel reference electrode fixing device. The reference electrode and the flange are connected by adopting a T-shaped structure, and the reference electrode and the flange extrude the gasket to enable the positions of the reference electrode and the flange pore to be similar to an isolated state, so that the leakage of seawater can be effectively prevented. The upper part of the flange adopts a pore structure and is tightly connected with the lead, so that the sealing performance of the fixing device is better. The flange and the sealing cover are connected with the sealing ring through threads, so that external corrosive media can be effectively prevented from entering the flange and corroding the threads of the flange. A wire sealing ring is arranged at the joint of the sealing cover and the wire, so that the external corrosive medium can be effectively prevented from entering. The novel reference electrode fixing device has the advantages of simple structure, convenience in mounting and dismounting, low cost and the like.
Description
Technical Field
The invention belongs to the technical field of corrosion prevention of seawater pipelines of nuclear power plants, and particularly relates to a novel reference electrode fixing device.
Background
In the nuclear power field, impressed current cathodic protection is taken as one of the most common means for seawater pipeline corrosion prevention, and plays a great role in seawater corrosion prevention. The water pipeline of the nuclear power station adopts impressed current cathodic protection, and has the advantages of continuously adjustable output current, large protection range, no limitation of environmental medium resistivity, economy, long protection life and the like.
In an applied current cathodic protection system, parameters such as protection potential, protection current density, anode current, anode voltage, and the like need to be measured. The impressed current cathodic protection is generally composed of an auxiliary anode, a reference electrode and a direct current power supply. The auxiliary anode is connected with the anode of the direct current power supply to form a complete circuit loop with the protected metal pipeline and the environment medium, and the formed current loop provides cathodic protection current for the protected structure. The reference electrode measures various electrode potentials as reference comparison electrodes, the electrode to be measured and the reference electrode with accurately known electrode potential values form a battery, and the electrode potential of the electrode to be measured can be calculated by measuring the battery electromotive force value. In a seawater pipeline impressed current cathodic protection system of a nuclear power plant, the structural design and mechanical seal of a reference electrode can influence the accuracy of a measurement result, and liquid connection potential is inevitably generated, so that errors are generated.
In a nuclear power plant, the reference electrode needs to be checked regularly, the traditional reference electrode is troublesome to disassemble, and the fixing device is not tight in sealing. Therefore, in order to accurately obtain the measurement value of the impressed current cathode protection of the seawater pipeline, a novel reference electrode fixing device which is convenient to assemble and disassemble and applied to the seawater pipeline needs to be provided, so that the problems of installation of the reference electrode on the seawater pipeline and sealing of the reference electrode are solved, and more accurate parameters such as a protection potential, a protection current density, an anode current and an anode voltage are obtained.
Disclosure of Invention
The invention aims to provide a novel reference electrode fixing device aiming at the problem that the conventional reference electrode is troublesome to disassemble.
The technical scheme of the invention is as follows:
a novel reference electrode fixing device comprises a flange, a gasket and a sealing cover; the lower part of the flange is processed into a sleeve shape and is in threaded connection with the reference electrode, the flange is provided with a through hole along the axial direction to allow a lead to pass through, and the top surface of the flange is provided with a protruding threaded structure for mounting a sealing cover; a gasket is arranged between the flange and the reference electrode, and the sealing cover is arranged on a thread structure on the top surface of the flange.
Furthermore, the gasket is made of ethylene propylene diene monomer.
Furthermore, the flange is made of the same material as the seawater pipeline.
Furthermore, the flange is made of 10 CrMoAl.
Further, a sealing ring is arranged between the sealing cover and the flange.
Furthermore, a lead sealing ring is arranged at the joint of the sealing cover and the lead.
Further, the sealing cover is in a hexagonal shape.
Further, the inner diameter of the through hole of the flange is 1.05-1.2 times of the outer diameter of the lead.
Further, the through hole of the flange is in interference fit with the lead.
The invention also provides the novel reference electrode fixing device, which sequentially comprises the following steps:
and 3, mounting the fixing device provided with the reference electrode on a seawater pipeline through a flange.
The invention has the beneficial effects that:
the joint of the reference electrode and the flange adopts a T-shaped structure, and the reference electrode and the flange extrude the gasket to enable the positions of the reference electrode and the flange pore to be approximate to an isolated state, so that the leakage of seawater can be effectively prevented. The upper part of the flange adopts a pore structure and is tightly connected with the lead, so that the sealing performance of the fixing device is better. The flange and the sealing cover are connected with the sealing ring through threads, so that external corrosive media can be effectively prevented from entering the flange and corroding the threads of the flange. A wire sealing ring is arranged at the joint of the sealing cover and the wire, so that the external corrosive medium can be effectively prevented from entering. The novel reference electrode fixing device has the advantages of simple structure, convenience in mounting and dismounting, low cost and the like.
Drawings
FIG. 1 is a schematic structural view of the present invention;
in the figure: 1-reference electrode, 2-gasket, 3-flange, 4-lead and 5-sealing cover.
Detailed Description
The invention is described in further detail below with reference to the figures and the embodiments.
The embodiment provides a novel reference electrode fixing device, which is structurally shown in fig. 1 and mainly comprises a flange 3, a gasket 2 and a sealing cover 5.
The flange 3 is made of the same material as a seawater pipeline, preferably 10CrMoAl, galvanic corrosion caused by different materials can be avoided, the lower part of the flange 3 is processed into a sleeve shape and is in threaded connection with the reference electrode 1, the upper part of the flange adopts a fine hole structure to enable the lead 4 to pass through, and the thread protruded on the flange is convenient for sealing the lead 4; the outer wall of the sleeve at the lower part of the flange 3 is coated with an anticorrosive coating, so that the condition that the reference electrode 1 fails due to the fracture of the seawater corrosion sleeve can be effectively prevented.
The joint of the reference electrode 1 and the flange 3 adopts a T-shaped structure, the gasket 2 is arranged between the flange 3 and the reference electrode 1, and the lead 4 of the reference electrode 1 passes through the gasket 2. The gasket 2 of the embodiment adopts ethylene propylene diene monomer rubber, and can resist water and aging.
The sealing cover 5 has a cable sealing function as shown in fig. 2, and the wire 4 passes through the center of the sealing cover 5. The sealing cover 5 of the embodiment adopts a hexagonal shape, and a wire sealing ring is arranged at the top of the sealing cover 5, so that the wire 4 can be better sealed.
Referring to fig. 1-2, the reference electrode fixing device of the present embodiment, when in use, sequentially comprises the following steps:
and 3, mounting the flange 3 on the seawater pipeline.
The reference electrode 1 and the flange 3 of this embodiment adopt a T-shaped structure at the junction, and the reference electrode 1 and the flange 3 press the gasket 2 to make the pores of the reference electrode 1 and the flange 3 approximate to an isolated state, thereby effectively preventing the leakage of seawater.
The upper part of the flange 3 adopts a fine hole structure and is tightly connected with the lead 4, the aperture of the fine hole is slightly larger than the outer diameter of the lead (the inner diameter of the fine hole is not more than 0.05-0.6 times of the outer diameter of the lead), or the fine hole and the fine hole adopt an interference fit mode, the seawater is further prevented from leaking outwards, and therefore the sealing performance of the fixing device of the embodiment is better.
The flange 3 is in threaded connection with the sealing cover 5, a sealing ring is arranged between the flange and the sealing cover, and external corrosive media can be effectively prevented from entering the flange, so that the threads of the flange 3 are corroded.
A lead sealing ring is arranged at the joint of the sealing cover 5 and the lead 4, so that the external corrosive medium can be effectively prevented from entering and corroding the lead 4, and the service performance of the reference electrode 1 is further influenced.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. It is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.
Claims (10)
1. The utility model provides a novel reference electrode is fixed device which characterized in that: comprises a flange (3), a gasket (2) and a sealing cover (5); the lower part of the flange (3) is processed into a sleeve shape and is in threaded connection with the reference electrode (1), the flange (3) is provided with a through hole along the axial direction to enable a lead (4) to pass through, and the top surface is provided with a protruding threaded structure for installing a sealing cover (5); a gasket (2) is arranged between the flange (3) and the reference electrode (1), and the sealing cover (5) is arranged on a thread structure on the top surface of the flange (3).
2. A novel reference electrode fixture assembly according to claim 1 wherein: the gasket (2) is made of ethylene propylene diene monomer.
3. A novel reference electrode fixture according to claim 1 or 2 wherein: the flange (3) is made of the same material as the seawater pipeline.
4. A novel reference electrode fixture assembly according to claim 3 wherein: the flange (3) is made of 10 CrMoAl.
5. A novel reference electrode fixture assembly according to claim 3 wherein: and a sealing ring is arranged between the sealing cover (5) and the flange (3).
6. The novel reference electrode fixture of claim 5, wherein: and a lead sealing ring is arranged at the joint of the sealing cover (5) and the lead (4).
7. A novel reference electrode fixture assembly according to claim 3 wherein: the sealing cover (5) is in a hexagonal shape.
8. A novel reference electrode fixture assembly according to claim 3 wherein: the inner diameter of the through hole of the flange (3) is 1.05-1.2 times of the outer diameter of the lead (4).
9. A novel reference electrode fixture assembly according to claim 3 wherein: the through hole of the flange (3) is in interference fit with the lead (4).
10. A novel reference electrode fixture according to claim 6 comprising the following steps in sequence:
step 1, a lead (4) of a reference electrode (1) penetrates through a gasket (2) and a flange (3) at the reference electrode, and the reference electrode (1) is screwed down;
step 2, enabling the lead (4) to penetrate through the sealing cover (5), placing a gasket as a sealing ring, and screwing the sealing cover (5);
and 3, mounting the fixing device provided with the reference electrode (1) on a seawater pipeline through a flange (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811617800.2A CN111378976A (en) | 2018-12-28 | 2018-12-28 | Novel reference electrode is fixed device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811617800.2A CN111378976A (en) | 2018-12-28 | 2018-12-28 | Novel reference electrode is fixed device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111378976A true CN111378976A (en) | 2020-07-07 |
Family
ID=71220785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811617800.2A Pending CN111378976A (en) | 2018-12-28 | 2018-12-28 | Novel reference electrode is fixed device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111378976A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113388840A (en) * | 2021-06-14 | 2021-09-14 | 上海赟申船舶工程有限公司 | Cathode protection fixing device for offshore wind power steel structure |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0414033A1 (en) * | 1989-08-18 | 1991-02-27 | Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. | Method for continuous electrolyte transfer and reference electrode system |
| CN2082270U (en) * | 1990-12-26 | 1991-08-07 | 青岛兴远船务工程有限公司 | Corrosion-proof attachment protecting device |
| CN2389901Y (en) * | 1999-10-22 | 2000-08-02 | 倪成娥 | Sea living things expelling and corrosion resisting device for metal member of sea water pipe system |
| CN202421120U (en) * | 2011-10-21 | 2012-09-05 | 中国海洋石油总公司 | Compound double-reference electrode for monitoring potential of seawater pipeline |
| CN206127428U (en) * | 2016-10-25 | 2017-04-26 | 青岛钢研纳克检测防护技术有限公司 | Pipeline current potential monitoring devices |
| CN206289304U (en) * | 2016-12-29 | 2017-06-30 | 阳江核电有限公司 | A kind of split type reference electrode device for cathodic protection system |
| CN209816287U (en) * | 2018-12-28 | 2019-12-20 | 中核核电运行管理有限公司 | Novel reference electrode is fixed device |
-
2018
- 2018-12-28 CN CN201811617800.2A patent/CN111378976A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0414033A1 (en) * | 1989-08-18 | 1991-02-27 | Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. | Method for continuous electrolyte transfer and reference electrode system |
| CN2082270U (en) * | 1990-12-26 | 1991-08-07 | 青岛兴远船务工程有限公司 | Corrosion-proof attachment protecting device |
| CN2389901Y (en) * | 1999-10-22 | 2000-08-02 | 倪成娥 | Sea living things expelling and corrosion resisting device for metal member of sea water pipe system |
| CN202421120U (en) * | 2011-10-21 | 2012-09-05 | 中国海洋石油总公司 | Compound double-reference electrode for monitoring potential of seawater pipeline |
| CN206127428U (en) * | 2016-10-25 | 2017-04-26 | 青岛钢研纳克检测防护技术有限公司 | Pipeline current potential monitoring devices |
| CN206289304U (en) * | 2016-12-29 | 2017-06-30 | 阳江核电有限公司 | A kind of split type reference electrode device for cathodic protection system |
| CN209816287U (en) * | 2018-12-28 | 2019-12-20 | 中核核电运行管理有限公司 | Novel reference electrode is fixed device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113388840A (en) * | 2021-06-14 | 2021-09-14 | 上海赟申船舶工程有限公司 | Cathode protection fixing device for offshore wind power steel structure |
| CN113388840B (en) * | 2021-06-14 | 2022-08-05 | 上海赟申船舶工程有限公司 | Cathode protection fixing device for offshore wind power steel structure |
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