CN110760855A - Device for measuring potential of drum-shaped filter screen - Google Patents
Device for measuring potential of drum-shaped filter screen Download PDFInfo
- Publication number
- CN110760855A CN110760855A CN201911112189.2A CN201911112189A CN110760855A CN 110760855 A CN110760855 A CN 110760855A CN 201911112189 A CN201911112189 A CN 201911112189A CN 110760855 A CN110760855 A CN 110760855A
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- Prior art keywords
- reference electrode
- potential
- probe
- telescopic rod
- electrode device
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- 239000000523 sample Substances 0.000 claims abstract description 52
- 239000002184 metal Substances 0.000 claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000010949 copper Substances 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 abstract description 5
- 230000007797 corrosion Effects 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000004210 cathodic protection Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000003068 static effect Effects 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The invention relates to the technical field of corrosion protection, and particularly discloses a device for measuring the potential of a drum-shaped filter screen. A potential measuring device for a drum-shaped filter screen comprises a potential detector, a reference electrode device, an electric brush probe and a telescopic rod, wherein the reference electrode device is connected to the front end of the telescopic rod through a reference electrode lead, and is fixed at the tail end of the telescopic rod; the electric brush probe is connected with the potential detector through an electric brush probe lead, so that the reference electrode device, the electric brush probe and the potential detector form a loop. The drum-shaped filter screen potential measuring device can realize the regular and convenient measurement of the protective potential of the drum-shaped filter screen, can protect the potential detector and personnel safety by utilizing the magnetic connection mode of the reference electrode device and the telescopic rod, and can conveniently recover the reference electrode device which falls off except the reference electrode device by utilizing the air bag in the reference electrode device.
Description
Technical Field
The invention belongs to the technical field of corrosion protection, and particularly relates to a device for measuring the potential of a drum-shaped filter screen.
Background
The drum-shaped rotary filter screen of the nuclear power plant has the function of removing fine impurities in seawater to ensure the normal operation of subsequent equipment, and whether the drum-shaped rotary filter screen can normally operate has great influence on the power plant. The drum net of the power plant is in seawater with strong corrosiveness for a long time, so that a sacrificial anode is arranged on the drum net to protect the drum net and slow down corrosion. The standard for cathodic protection requires that the equipment should periodically measure whether its protective potential meets the requirements after the sacrificial anode is installed. The protective potential is measured at least every 0.5a in the initial (1 a-2a after installation) and final (near the design life 2a-3a) and every 1a for the rest of the protective period. At present, the protection potential is mostly measured by a static device, and a protection potential measuring device and a method aiming at a rotating device such as a drum-type rotary filter screen are not available, so that a protection potential measuring device and a method aiming at a rotating device such as a drum-type rotary filter screen are needed to be developed.
Disclosure of Invention
The invention aims to provide a device for measuring the potential of a drum-shaped filter screen, which realizes the periodic measurement of the protection potential of the drum-shaped filter screen.
The technical scheme of the invention is as follows: a potential measuring device for a drum-shaped filter screen comprises a potential detector, a reference electrode device, an electric brush probe and a telescopic rod, wherein the reference electrode device is connected to the front end of the telescopic rod through a reference electrode lead, and is fixed at the tail end of the telescopic rod; the electric brush probe is connected with the potential detector through an electric brush probe lead, so that the reference electrode device, the electric brush probe and the potential detector form a loop.
The reference electrode device comprises a reference electrode, a camera, a battery bin, a lead bin and a shell, wherein the reference electrode and the camera are arranged in the shell, the battery bin and the lead bin are arranged in the shell, and equipment in the shell is sealed; and a coiling machine is arranged in the lead bin and can be used for coiling and uncoiling the reference electrode lead.
A length sensor is arranged in a wire winder in the wire bin, and the depth parameter of the reference electrode device can be fed back to the potential detector by the length sensor.
The rubber rings are sleeved on the rubber ring and the reference electrode and are sealed and fixed at the lower end of the shell side by side; the wire bin and the battery bin are vertically arranged in the shell; and the battery in the battery bin supplies power to the camera and the wire winder in the wire bin.
The potential detector comprises a display screen, wherein the display screen can display an image of the environment where the reference electrode device is located and the information of the laying-down depth of the reference electrode device; the potential detector is supported at the tail end of the telescopic rod through a buckle, the buckle is in contact connection with a metal contact piece arranged on the telescopic rod, and the reference electrode device, the potential detector and the electric brush probe can form a loop.
The electric brush probe comprises a probe, a probe bracket and a metal elastic pressing sheet, wherein the probe is fixed inside the shell-shaped probe bracket through a plurality of metal elastic pressing sheets which are circumferentially arranged.
The probe is made of a copper-graphite composite material, and the copper content omega (Cu) in the brush probe is 20-40%; the probe bracket is made of insulating materials.
The reference electrode device also comprises an air bag, the air bag is arranged on the outer wall of the shell, when the reference electrode lead is disconnected with the telescopic rod, the air bag in the reference electrode device is automatically opened, and meanwhile, the reference electrode lead can be automatically recovered by a winding machine in the lead bin, and the reference electrode device floats on the water surface.
The connection between the end part of the reference electrode wire and the front end of the telescopic rod adopts a magnetic connection mode, and the reference electrode wire can be automatically separated under the action of external force; the end part of the electric brush probe wire connected with the potential detector is of a plug structure, and the electric brush probe wire is connected with the potential detector through a jack type connection.
The telescopic rod is further provided with a support, the telescopic rod can be conveniently placed by the support, the length of the telescopic rod in the drum net is limited, and the telescopic rod is prevented from being clamped by the drum net.
The invention has the following remarkable effects: the drum-shaped filter screen potential measuring device can realize the regular and convenient measurement of the protective potential of the drum-shaped filter screen, can protect the potential detector and personnel safety by utilizing the magnetic connection mode of the reference electrode device and the telescopic rod, and can conveniently recover the reference electrode device which falls off except the reference electrode device by utilizing the air bag in the reference electrode device.
Drawings
FIG. 1 is a schematic structural diagram of a potential measuring device for a drum-type filter according to the present invention;
FIG. 2 is a schematic view of the reference electrode device shown in FIG. 1;
FIG. 3 is a schematic diagram of the brush probe of FIG. 1;
FIG. 4 is an enlarged view of a portion of the female connection of FIG. 1;
FIG. 5 is an enlarged view of a portion of the wire connection of FIG. 1;
FIG. 6 is a rear view of the detachable device of FIG. 1;
FIG. 7 is an enlarged view of a portion of FIG. 6;
FIG. 8 is a schematic view of the structure of the telescopic rod limiting bracket in FIG. 1;
in the figure: 1. a potential detector; 2. a reference electrode arrangement; 3. an electric brush probe; 4. a telescopic rod; 5. a brush probe wire; 6. a reference electrode lead; 7. a jack-type connection; 8. magnetic connection; 9. a telescopic rod limit bracket; 10. a probe; 11. a probe holder; 12. a metal elastic pressing sheet; 13. buckling; 14. a support; 15. a reference electrode; 16. a camera; 17. a rubber ring; 18. a battery compartment; 19. a wire bin; 20. an air bag; 21. a housing; 22. a metal contact.
Detailed Description
The invention is described in further detail below with reference to the figures and the embodiments.
As shown in fig. 1 to 8, a potential measuring device for a drum-type filter screen comprises a potential detector 1, a reference electrode device 2, an electric brush probe 3 and a telescopic rod 4, wherein the reference electrode device 2 is connected with the front end of the telescopic rod 4 through a reference electrode lead 6, the tail end of the telescopic rod 4 is fixedly provided with the potential detector 1, the potential detector 1 is provided with a display, and the environment and the liquid level condition of the reference electrode device can be fed back to the display by using a camera and a length sensor in the reference electrode device 2; the electric brush probe 3 is connected with the potential detector 1 through an electric brush probe lead 5, wherein the electric brush probe 3 comprises a probe 10, a probe bracket 11 and a metal elastic pressing sheet 12, the outer wall of the probe 10 is fixed inside the shell-shaped probe bracket 11 through a plurality of metal elastic pressing sheets 12 which are circumferentially arranged, the end part of the electric brush probe lead 5 connected with the potential detector 1 is of a plug structure and is connected with the potential detector 1 through a jack type connection 7, wherein the probe 10 is made of a copper-graphite composite material, and the copper content omega (Cu) in the electric brush probe is 20-40%; the probe bracket 11 is made of an insulating material; the rear end of the potential detector 1 is fixed at the tail end of the telescopic rod 4 through a buckle 13, and the buckle is in contact connection with a metal contact piece 22 arranged on the telescopic rod 4, so that the reference electrode device 2, the potential detector 1 and the electric brush probe 3 form a loop and can be used for measurement; the reference electrode device 2 comprises a reference electrode 15, a camera 16, a battery bin 18, a lead bin 19, an air bag 20 and a shell 21, wherein the reference electrode 15 sleeved with a rubber ring 17 and the camera 16 are arranged at the lower end of the shell 21 side by side to realize the sealing property inside the reference electrode device 2; the wire cabin 19 and the battery cabin 18 are sequentially arranged up and down and are installed inside the shell 21, and the air bags 20 are installed on the outer wall of the shell 21 in the circumferential direction, wherein batteries in the battery cabin supply power for the camera 16 and the wire cabin 19, so that a wire winder in the wire cabin 19 can wind and unwind wires, a length sensor is arranged in the wire winder, and the length sensor can feed back to a display screen of the potential detector 1 during paying off and is used for determining the putting-down depth of the reference electrode device 2; the connection between the end of the reference electrode wire 6 and the front end of the telescopic rod utilizes the connection mode of the magnetic connection 8, when the reference electrode wire 6 is subjected to a certain force, the magnetic connection mode can be automatically separated, and the telescopic rod 4 and personnel are prevented from being driven to cause larger damage; when the reference electrode lead 6 is disconnected at the magnetic connection 8, the air bag in the reference electrode device 2 is automatically opened, and meanwhile, the reference electrode lead 6 can be automatically recovered by a wire winder in the lead bin 19, so that the reference electrode device 2 can float on the water surface, the safety of the reference electrode device 2 is ensured, a drum net is prevented from winding the reference electrode, and the reference electrode device 2 is convenient to salvage after falling off; still install a support 14 on telescopic link 4, utilize support 14 can make things convenient for laying of telescopic link 4, the length that the telescopic link stretched into in the drum net is limited simultaneously, prevents that telescopic link 4 from being lived by the drum net card.
When the potential measuring device for the drum-type filter screen is used for measuring the protection potential, the reference electrode falls down through the telescopic rod, the camera is used for shooting pictures, the reference electrode is placed in a corrosion medium where the drum-type filter screen is located, the brush probe is in contact with the tangent plane of the drum-type filter screen, and the potential detector automatically records and stores the protection potential at the position of equipment to be measured.
Claims (10)
1. The utility model provides a be used for drum type filter screen potential measuring device which characterized in that: the device comprises a potential detector (1), a reference electrode device (2), an electric brush probe (3) and a telescopic rod (4), wherein the reference electrode device (2) is connected to the front end of the telescopic rod (4) through a reference electrode lead (6), and the reference electrode device (2) is fixed at the tail end of the telescopic rod (4); the electric brush probe (3) is connected with the potential detector (1) through an electric brush probe lead (5), so that the reference electrode device (2), the electric brush probe (3) and the potential detector (1) form a loop.
2. A potential measuring device for a drum type screen according to claim 1, wherein: the reference electrode device (2) comprises a reference electrode (15), a camera (16), a battery chamber (18), a lead chamber (19) and a shell (21), wherein the reference electrode (15) and the camera (16) are arranged in the shell (21), the battery chamber (18) and the lead chamber (19) are arranged in the shell (21), and equipment in the shell (21) is sealed; and a coiling machine is arranged in the wire bin (19) and can be used for coiling and uncoiling the reference electrode wire (6).
3. A potential measuring device for a drum type screen according to claim 2, wherein: a length sensor is arranged in a wire winder in the wire bin (19), and the length sensor can feed back the depth parameter of the reference electrode device (2) which is put down to the potential detector (1).
4. A potential measuring device for a drum type screen according to claim 2, wherein: the rubber ring (17) and the reference electrode (15) are sleeved with the rubber ring (17) and are sealed and fixed at the lower end of the shell (21) side by side; the wire chamber (19) and the battery chamber (18) are arranged in the shell (21) up and down; and the battery in the battery bin (18) supplies power for the camera (16) and the wire winder in the wire bin (19).
5. A potential measuring device for a drum type screen according to claim 1, wherein: the potential detector (1) comprises a display screen, and the display screen can display an image of the environment where the reference electrode device (2) is located and the information of the laying-down depth of the reference electrode device (2); potential detector (1) support at the end of telescopic link (4) through buckle (13), buckle (13) be connected with the metal contact (22) contact that sets up on telescopic link (4), can make reference electrode device (2), potential detector (1) and brush probe (3) form the return circuit.
6. A potential measuring device for a drum type screen according to claim 1, wherein: the electric brush probe (3) comprises a probe (10), a probe bracket (11) and metal elastic pressing sheets (12), wherein the probe (10) is fixed inside the shell-shaped probe bracket (11) through the metal elastic pressing sheets (12) which are circumferentially arranged.
7. A potential measuring device for a drum type screen according to claim 6, wherein: the probe (10) is made of a copper-graphite composite material, and the content of copper in the brush probe is between 20 and 40 percent; the probe bracket (11) is made of an insulating material.
8. A potential measuring device for a drum type screen according to claim 2, wherein: the reference electrode device (2) still include gasbag (20), gasbag (20) install on shell (21) outer wall reference electrode wire (6) with telescopic link (4) when breaking, gasbag (20) in the reference electrode device (2) are automatic to be opened, simultaneously, reference electrode wire (6) can be retrieved automatically to the book line machine in wire storehouse (19) to make reference electrode device (2) float on the surface of water.
9. A potential measuring device for a drum type screen according to claim 1, wherein: the connection between the end part of the reference electrode lead (6) and the front end of the telescopic rod (4) utilizes the connection mode of a magnetic connection (8), and the reference electrode lead can be automatically separated under the action of external force; the end part of the electric brush probe lead (5) connected with the potential detector (1) is in a plug structure, and is connected with the potential detector (1) through a jack type connection (7).
10. A potential measuring device for a drum type screen according to claim 1, wherein: the telescopic rod (4) is further provided with a support (14), the telescopic rod (4) can be conveniently placed by the support (14), the length of the telescopic rod extending into the drum net is limited, and the telescopic rod (4) is prevented from being clamped by the drum net.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911112189.2A CN110760855A (en) | 2019-11-14 | 2019-11-14 | Device for measuring potential of drum-shaped filter screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911112189.2A CN110760855A (en) | 2019-11-14 | 2019-11-14 | Device for measuring potential of drum-shaped filter screen |
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| Publication Number | Publication Date |
|---|---|
| CN110760855A true CN110760855A (en) | 2020-02-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911112189.2A Pending CN110760855A (en) | 2019-11-14 | 2019-11-14 | Device for measuring potential of drum-shaped filter screen |
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| CN (1) | CN110760855A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114293191A (en) * | 2021-12-28 | 2022-04-08 | 苏州热工研究院有限公司 | Method and device for monitoring corrosion state of drum-shaped filter screen of nuclear power plant |
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|---|---|---|---|---|
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| JPS59190647A (en) * | 1983-04-13 | 1984-10-29 | Tokyo Gas Co Ltd | Corrosion diagnosis apparatus for underground piping |
| US5596267A (en) * | 1994-12-22 | 1997-01-21 | Atlantic Richfield Company | Apparatus and method for measuring potentials through pavements for buried pipeline cathodic protection systems |
| CN105675482A (en) * | 2016-04-14 | 2016-06-15 | 山东科技大学 | Electrochemical corrosion experiment device and method for measuring samples of various sizes |
| CN106053325A (en) * | 2016-07-04 | 2016-10-26 | 山东科技大学 | Electrochemical corrosion experimental facility under effect of stress coupling |
| CN107202755A (en) * | 2017-06-05 | 2017-09-26 | 天津大学 | A kind of electrochemistry noise sensor of metallic conduit outer surface Corrosion monitoring |
| CN108956445A (en) * | 2018-06-27 | 2018-12-07 | 中国科学院金属研究所 | A kind of Evaluation of Corrosion Resistance device of high throughput automated achievable in situ measurement |
| CN109283078A (en) * | 2018-09-07 | 2019-01-29 | 山西大学 | A kind of marine environment and power load coupling experiment analog machine |
| CN109357996A (en) * | 2018-10-23 | 2019-02-19 | 中核核电运行管理有限公司 | A kind of system and method can be used for the measurement of drum type strainer corrosion potential |
| CN211311602U (en) * | 2019-11-14 | 2020-08-21 | 中核核电运行管理有限公司 | Device for measuring potential of drum-shaped filter screen |
-
2019
- 2019-11-14 CN CN201911112189.2A patent/CN110760855A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4061965A (en) * | 1976-05-24 | 1977-12-06 | Mobil Oil Corporation | Method and apparatus for monitoring a cathodically protected corrodible hollow member |
| JPS59190647A (en) * | 1983-04-13 | 1984-10-29 | Tokyo Gas Co Ltd | Corrosion diagnosis apparatus for underground piping |
| US5596267A (en) * | 1994-12-22 | 1997-01-21 | Atlantic Richfield Company | Apparatus and method for measuring potentials through pavements for buried pipeline cathodic protection systems |
| CN105675482A (en) * | 2016-04-14 | 2016-06-15 | 山东科技大学 | Electrochemical corrosion experiment device and method for measuring samples of various sizes |
| CN106053325A (en) * | 2016-07-04 | 2016-10-26 | 山东科技大学 | Electrochemical corrosion experimental facility under effect of stress coupling |
| CN107202755A (en) * | 2017-06-05 | 2017-09-26 | 天津大学 | A kind of electrochemistry noise sensor of metallic conduit outer surface Corrosion monitoring |
| CN108956445A (en) * | 2018-06-27 | 2018-12-07 | 中国科学院金属研究所 | A kind of Evaluation of Corrosion Resistance device of high throughput automated achievable in situ measurement |
| CN109283078A (en) * | 2018-09-07 | 2019-01-29 | 山西大学 | A kind of marine environment and power load coupling experiment analog machine |
| CN109357996A (en) * | 2018-10-23 | 2019-02-19 | 中核核电运行管理有限公司 | A kind of system and method can be used for the measurement of drum type strainer corrosion potential |
| CN211311602U (en) * | 2019-11-14 | 2020-08-21 | 中核核电运行管理有限公司 | Device for measuring potential of drum-shaped filter screen |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114293191A (en) * | 2021-12-28 | 2022-04-08 | 苏州热工研究院有限公司 | Method and device for monitoring corrosion state of drum-shaped filter screen of nuclear power plant |
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