CN113981455A - Connection structure used as sacrificial anode in seawater pipeline - Google Patents
Connection structure used as sacrificial anode in seawater pipeline Download PDFInfo
- Publication number
- CN113981455A CN113981455A CN202111276970.0A CN202111276970A CN113981455A CN 113981455 A CN113981455 A CN 113981455A CN 202111276970 A CN202111276970 A CN 202111276970A CN 113981455 A CN113981455 A CN 113981455A
- Authority
- CN
- China
- Prior art keywords
- flange
- pipeline
- anode
- locking
- anode flange
- 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
- 239000013535 sea water Substances 0.000 title claims abstract description 38
- 239000002184 metal Substances 0.000 claims abstract description 15
- 229910052751 metal Inorganic materials 0.000 claims abstract description 15
- 238000007689 inspection Methods 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 230000000694 effects Effects 0.000 claims abstract description 6
- 238000005476 soldering Methods 0.000 claims description 24
- 229910000746 Structural steel Inorganic materials 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 abstract description 11
- 230000007797 corrosion Effects 0.000 abstract description 11
- 238000009434 installation Methods 0.000 abstract description 5
- 238000009413 insulation Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000006056 electrooxidation reaction Methods 0.000 description 8
- 230000006872 improvement Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000008151 electrolyte solution Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000013505 freshwater Substances 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000036647 reaction Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 239000000243 solution Substances 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
-
- 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
- C23F2213/00—Aspects of inhibiting corrosion of metals by anodic or cathodic protection
- C23F2213/20—Constructional parts or assemblies of the anodic or cathodic protection apparatus
-
- 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
- C23F2213/00—Aspects of inhibiting corrosion of metals by anodic or cathodic protection
- C23F2213/30—Anodic or cathodic protection specially adapted for a specific object
- C23F2213/32—Pipes
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 connecting structure used as a sacrificial anode in a seawater pipeline, which comprises a first pipeline, a second pipeline and a connecting structure used for connecting the first pipeline and the second pipeline, wherein the connecting structure comprises the following components: the connecting structure comprises an anode flange, the anode flange is positioned between the first pipeline and the second pipeline, and sealing gaskets are arranged on two sides of the anode flange so as to be connected with the first pipeline and the second pipeline in a sealing manner; the connecting structure further comprises a locking structure for locking the anode flange between the first pipeline and the second pipeline; the metal activity of the anode flange is higher than that of the locking structure, and the anode flange is electrically connected with the locking structure. Compared with the existing electric insulation assembly, the structure is simple, and the manufacture, installation, inspection and replacement are all simpler and more convenient, and the cost is lower. Meanwhile, the worker can replace the parts according to the corrosion degree of the anode flange, and the whole practicability is high.
Description
Technical Field
The invention relates to the technical field of pipeline connection structures, in particular to a connection structure used as a sacrificial anode in a seawater pipeline.
Background
The seawater pipeline system is an important component of a ship pipeline system and comprises a water fire-fighting system, a seawater cooling system and the like. The seawater is different from fresh water, a large amount of salt substances are dissolved in the seawater, the seawater is an electrolyte solution, when two different metals are contacted with the seawater and form a closed loop, a galvanic cell reaction can occur, and the more active metal in the seawater can be subjected to electrochemical corrosion. The pipe for conveying seawater is composed of parts such as a pipe and a valve accessory, the materials of all the parts are often inconsistent, if measures for preventing electrochemical corrosion are not taken, after the pipe is used for a period of time, the parts made of more active metal materials in the pipe can be corroded to cause failure, so that serious problems such as pipeline leakage and the like occur, and importantly, the corrosion process is difficult to find. Based on the shortcomings of the current electrochemical corrosion prevention measures, a pipeline connection structure which is higher in reliability and convenient to install, check and replace is needed.
Disclosure of Invention
An object of an embodiment of the present invention is to provide a connection structure for a sacrificial anode in a seawater pipeline, in which a flange serving as a sacrificial anode is installed in a pipeline, and a material of the flange is more active than other metal parts of the pipeline, and the flange is preferentially corroded as an anode in a seawater medium, so as to protect other important parts in a pipeline system, and the connection structure has the advantages of convenience in installation, inspection and replacement.
To achieve the above object, an embodiment of the present invention provides a connection structure for a sacrificial anode in a seawater pipeline, including a first pipe, a second pipe, and a connection structure for connecting the first pipe and the second pipe:
the connecting structure comprises an anode flange, the anode flange is positioned between the first pipeline and the second pipeline, and sealing gaskets are arranged on two sides of the anode flange so as to be connected with the first pipeline and the second pipeline in a sealing manner; the connecting structure further comprises a locking structure for locking the anode flange between the first pipeline and the second pipeline;
the metal activity of the anode flange is higher than that of the locking structure, and the anode flange is electrically connected with the locking structure.
Compared with the prior art, in this scheme, the positive pole flange is for sacrificing the subassembly, this structural integration is passive for the initiative, through setting up the positive pole flange part of high liveliness, in order to protect other parts to avoid by electrochemical corrosion, the initiative sets up the positive pole flange and is main corrosion part, through such structural setting, staff's routine maintenance that can be convenient for, the staff of being convenient for discovers and grasps the corruption condition of positive pole flange in time, compare current electric insulation assembly, constitute simple structure, the preparation, the installation, inspection and change are all simple and convenient more, and the cost is lower. Meanwhile, the worker can replace the parts according to the corrosion degree of the anode flange, and the whole practicability is high.
As an improvement of the above scheme, the locking structure comprises a first flange, a second flange and a locking bolt;
bosses are arranged at the end parts of the first pipeline and the second pipeline, and the first flange is arranged on one side of the boss corresponding to the first pipeline; the second flange is arranged on one side of the boss corresponding to the second pipeline;
the first flange is connected with the second flange through the locking bolt so as to connect and lock the first pipeline, the anode flange and the second pipeline.
As an improvement of the scheme, the locking bolt penetrates through the anode flange.
As an improvement of the scheme, one side of the anode flange is connected with a lead, one end of the lead is connected with the first flange, the middle part of the lead is connected with the anode flange, and the other end of the lead is connected with the second flange.
As an improvement of the scheme, a threaded hole is formed in one side of the anode flange, a screw is connected to the threaded hole in a threaded mode, and the lead is tightly pressed on the anode flange through the screw.
As an improvement of the scheme, the anode flange is provided with an inspection hole.
As a modification of the above scheme, the axis of the inspection hole is perpendicular to the axis of the anode flange.
As an improvement of the above scheme, a first unidirectional soldering lug is arranged on one side of the first flange, a second unidirectional soldering lug is arranged on one side of the second flange, and the locking bolt locks the first unidirectional soldering lug and the second unidirectional soldering lug on the first flange and the second flange;
one end of the wire is connected with the first unidirectional soldering lug, and the other end of the wire is connected with the second unidirectional soldering lug.
As an improvement of the scheme, the anode flange is made of Q235-A structural steel.
Other beneficial effects are as follows:
1. by means of the structure of the locking bolt, the first flange and the second flange are locked, and meanwhile, the anode flange is positioned and installed, so that the overall structure can be simplified, and the flexibility of the overall structure is improved;
2. in order to improve the connection stability between the anode flange and the lead, one side of the anode flange is provided with a threaded hole, a screw is connected with the threaded hole in a threaded manner, and the lead is tightly pressed on the anode flange by the screw;
3. one side of the first flange is provided with a first one-way soldering lug, one side of the second flange is provided with a second one-way soldering lug, the locking bolt locks the first one-way soldering lug and the second one-way soldering lug on the first flange and the second flange, one end of the wire is connected with the first one-way soldering lug, and the other end of the wire is connected with the second one-way soldering lug. Wherein, in this scheme, the connected mode of first flange and second flange and wire is the welding. The arrangement of the connecting structure also aims to improve the connection stability between the first flange and the second flange and the lead;
4. the setting of inspection hole can be convenient for the staff to carry out daily maintenance operation to this structure, and the staff of being convenient for observes the corruption condition of anode flange, makes the corrosion process of anode flange embody the transparentization.
Drawings
FIG. 1 is a schematic diagram of a specific structure of an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an anode flange according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The seawater pipeline system is an important component of a ship pipeline system and comprises a water fire-fighting system, a seawater cooling system and the like. The seawater is different from fresh water, a large amount of salt substances are dissolved in the seawater, the seawater is an electrolyte solution, when two different metals are contacted with the seawater and form a closed loop, a galvanic cell reaction can occur, and the more active metal in the seawater can be subjected to electrochemical corrosion. The pipe for conveying seawater is composed of parts such as a pipe and a valve accessory, the materials of all the parts are often inconsistent, if measures for preventing electrochemical corrosion are not taken, after the pipe is used for a period of time, the parts made of more active metal materials in the pipe can be corroded to cause failure, so that serious problems such as pipeline leakage and the like occur, and importantly, the corrosion process is difficult to find. Based on the shortcomings of the current electrochemical corrosion prevention measures, a pipeline connection structure which is higher in reliability and convenient to install, check and replace is needed. The utility model provides a connection structure who is as sacrificial anode in the sea water pipeline, through installing one kind in the pipeline as sacrificial anode's flange, its material is lively compared other metal parts of pipeline, preferentially corrodes as the positive pole in the sea water medium, plays the effect of other important parts in the protection pipe-line system, has the advantage of being convenient for installation, inspection and change. The specific scheme is as follows:
referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of an embodiment of the present invention, and fig. 2 is a schematic structural diagram of an anode flange 3 of an embodiment of the present invention.
A connection structure for use as a sacrificial anode in a seawater pipeline includes a first pipe 1, a second pipe 2, and a connection structure for connecting the first pipe 1 and the second pipe 2.
The connecting structure comprises an anode flange 3, the anode flange 3 is positioned between the first pipeline 1 and the second pipeline 2, and sealing gaskets 4 are arranged on two sides of the anode flange 3 so as to be connected with the first pipeline 1 and the second pipeline 2 in a sealing manner; the connection structure further comprises a locking structure for locking the anode flange 3 between the first pipe 1 and the second pipe 2.
The locking structure comprises a first flange 5, a second flange 6 and a locking bolt 7. Bosses 8 are integrally arranged at the end parts of the first pipeline 1 and the second pipeline 2, and the first flange 5 is arranged at one side of the boss 8 corresponding to the first pipeline 1; the second flange 6 is arranged on one side of the boss 8 corresponding to the second pipeline 2;
the first flange 5 is connected with the second flange 6 through a locking bolt 7 so as to connect and lock the first pipeline 1, the anode flange 3 and the second pipeline 2.
It should be noted that, in this embodiment, the metal activity of the anode flange 3 is higher than that of the locking structure, specifically, the metal activity of the anode flange 3 is higher than that of the first flange 5 and the second flange 6. In the embodiment, the anode flange 3 is made of Q235-A structural steel. The anode flange 3 and the locking structure electric connection, specifically, anode flange 3 one side is connected with wire 9, and wire 9 one end is connected with first flange 5, and the middle part is connected with anode flange 3, and the other end is connected with second flange 6.
The anode flange 3 is reliably connected with the first flange 5 and the second flange 6 at two ends through leads, when the pipeline is filled with seawater, the anode flange 3 is in contact with other metal parts in the pipeline system and the seawater used as electrolyte solution, so as to form a closed loop, galvanic reaction can occur, active metal in the seawater loses electrons and is oxidized and dissolved, the corrosion is called electrochemical corrosion, the corroded metal is called an anode, and the anode flange 3 in the invention is used as the anode and is preferentially corroded to protect other metal parts in the pipeline system.
In this scheme, positive pole flange 3 is the sacrificial subassembly, this structural integration is passive for the initiative, through the positive pole flange 3 part that sets up high liveness, in order to protect other parts to avoid being corroded by the electrochemistry, the initiative sets up positive pole flange 3 and is the main corrosion part, through such structural setting, staff's routine maintenance that can be convenient for, the staff of being convenient for discovers and grasps positive pole flange 3's the corruption condition in time, compare current electrical insulation subassembly, constitute simple structure, the preparation, the installation, it is all more simple and convenient to inspect and change, and the cost is lower. Meanwhile, the worker can replace the parts according to the corrosion degree of the anode flange 3, and the whole practicability is high.
More preferably, in this embodiment, the locking bolts 7 are inserted through the anode flange 3.
It should be noted that, by the structure of the locking bolt 7, the first flange 5 and the second flange 6 are locked and the anode flange 3 is also positioned and mounted, and by such an arrangement, the overall structure can be simplified and the flexibility of the overall structure can be improved.
More preferably, in this embodiment, in order to improve the connection stability between the anode flange 3 and the lead 9, a threaded hole 10 is formed in one side of the anode flange 3, a screw 11 is screwed into the threaded hole 10, and the lead 9 is tightly pressed onto the anode flange 3 by the screw 11. In addition, a first one-way soldering lug 12 is arranged on one side of the first flange 5, a second one-way soldering lug 13 is arranged on one side of the second flange 6, the locking bolt 7 locks the first one-way soldering lug 12 and the second one-way soldering lug 13 on the first flange 5 and the second flange 6, one end of the lead 9 is connected with the first one-way soldering lug 12, and the other end of the lead is connected with the second one-way soldering lug 13. In the present embodiment, the first flange 5 and the second flange 6 are connected to the lead 9 by welding. The connection structure is also provided to improve the connection stability between the first flange 5, the second flange 6 and the lead 9.
More preferably, in the present embodiment, the anode flange 3 is provided with an inspection hole 14, and an axis of the inspection hole 14 is perpendicular to an axis of the anode flange 3.
It should be noted that the arrangement of the inspection hole 14 can facilitate the worker to perform routine maintenance operation on the structure, and facilitate the worker to observe the corrosion condition of the anode flange 3, so that the corrosion process of the anode flange 3 is transparent.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (9)
1. A connecting structure for use as a sacrificial anode in a sea water pipeline, comprising a first pipe, a second pipe, and a connecting structure for connecting the first pipe and the second pipe, characterized in that:
the connecting structure comprises an anode flange, the anode flange is positioned between the first pipeline and the second pipeline, and sealing gaskets are arranged on two sides of the anode flange so as to be connected with the first pipeline and the second pipeline in a sealing manner; the connecting structure further comprises a locking structure for locking the anode flange between the first pipeline and the second pipeline;
the metal activity of the anode flange is higher than that of the locking structure, and the anode flange is electrically connected with the locking structure.
2. A connection structure for use as a sacrificial anode in a sea water pipeline according to claim 1, wherein the locking structure comprises a first flange, a second flange and a locking bolt;
bosses are arranged at the end parts of the first pipeline and the second pipeline, and the first flange is arranged on one side of the boss corresponding to the first pipeline; the second flange is arranged on one side of the boss corresponding to the second pipeline;
the first flange is connected with the second flange through the locking bolt so as to connect and lock the first pipeline, the anode flange and the second pipeline.
3. A connection structure for sacrificial anodes in sea water pipelines according to claim 2, characterized in that said locking bolts are inserted through said anode flange.
4. A connection structure for a sacrificial anode in a sea water pipeline according to claim 2, wherein a lead is connected to one side of the anode flange, one end of the lead is connected to the first flange, the middle portion of the lead is connected to the anode flange, and the other end of the lead is connected to the second flange.
5. The connecting structure for the sacrificial anode in the seawater pipeline as claimed in claim 4, wherein a threaded hole is opened at one side of the anode flange, a screw is connected to the threaded hole in a threaded manner, and the screw presses the lead against the anode flange.
6. A connection structure for sacrificial anodes in sea water pipelines according to claim 1, characterized in that said anode flanges are provided with inspection holes.
7. A connection structure for sacrificial anodes in sea water pipelines according to claim 6, characterized in that the axis of said inspection hole and the axis of said anode flange are perpendicular to each other.
8. The connecting structure for the sacrificial anode in the seawater pipeline as claimed in claim 4, wherein a first one-way soldering lug is provided at one side of the first flange, a second one-way soldering lug is provided at one side of the second flange, and the locking bolt locks the first one-way soldering lug and the second one-way soldering lug on the first flange and the second flange;
one end of the wire is connected with the first unidirectional soldering lug, and the other end of the wire is connected with the second unidirectional soldering lug.
9. A connection structure for use as a sacrificial anode in a sea water pipeline according to claim 1, wherein the anode flange is made of Q235-a structural steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111276970.0A CN113981455A (en) | 2021-10-29 | 2021-10-29 | Connection structure used as sacrificial anode in seawater pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111276970.0A CN113981455A (en) | 2021-10-29 | 2021-10-29 | Connection structure used as sacrificial anode in seawater pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113981455A true CN113981455A (en) | 2022-01-28 |
Family
ID=79744856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111276970.0A Pending CN113981455A (en) | 2021-10-29 | 2021-10-29 | Connection structure used as sacrificial anode in seawater pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113981455A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120000351A (en) * | 2010-06-25 | 2012-01-02 | 대우조선해양 주식회사 | Corrosion-resisting device for ship piping |
| CN104651852A (en) * | 2015-01-29 | 2015-05-27 | 沪东中华造船(集团)有限公司 | Seawater pipeline sacrificial anode protector and mounting method thereof |
| CN205821458U (en) * | 2016-07-26 | 2016-12-21 | 尹建平 | A kind of sacrificial anode for naval vessel seawaterline |
| CN108728851A (en) * | 2018-08-20 | 2018-11-02 | 江苏科技大学 | A kind of seawaterline erosion protection system and its installation method |
-
2021
- 2021-10-29 CN CN202111276970.0A patent/CN113981455A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120000351A (en) * | 2010-06-25 | 2012-01-02 | 대우조선해양 주식회사 | Corrosion-resisting device for ship piping |
| CN104651852A (en) * | 2015-01-29 | 2015-05-27 | 沪东中华造船(集团)有限公司 | Seawater pipeline sacrificial anode protector and mounting method thereof |
| CN205821458U (en) * | 2016-07-26 | 2016-12-21 | 尹建平 | A kind of sacrificial anode for naval vessel seawaterline |
| CN108728851A (en) * | 2018-08-20 | 2018-11-02 | 江苏科技大学 | A kind of seawaterline erosion protection system and its installation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210668546U (en) | Fuel cell inlet and outlet structure and fuel cell | |
| CN108728851A (en) | A kind of seawaterline erosion protection system and its installation method | |
| CN113981455A (en) | Connection structure used as sacrificial anode in seawater pipeline | |
| JPH08283969A (en) | Electric corrosion protection current monitor and monitor system using the same | |
| CN209260559U (en) | A kind of suspension bridge cable clamp bolt seal protecting device | |
| CN214622435U (en) | Integral reference electrode mounting structure | |
| CN103587647B (en) | For changing the device of electrode under ship navigation state | |
| CN211117092U (en) | Corrosion-resistant engine connecting rod | |
| CN210799664U (en) | A anticorrosive lock nut assembly of leak protection for positive pole groove | |
| CN208933478U (en) | A kind of seawaterline erosion protection system | |
| CN111585452A (en) | Novel voltage-sharing electrode for converter valve and installation assembly and installation method thereof | |
| CN218818556U (en) | Anti-corrosion valve rod for ship seawater pipeline system | |
| CN219136952U (en) | PEM hydrogen production electrolysis trough structure | |
| CN218867349U (en) | Storage battery pole column structure | |
| CN214589433U (en) | High-strength corrosion-resistant insulation piercing connector | |
| CN212178168U (en) | Sealing connecting flange | |
| CN220118923U (en) | Coating reinforcing component for pipeline | |
| CN212864987U (en) | Novel zinc alloy sacrificial anode | |
| CN215520799U (en) | Full-corrosion-resistant oil pipe made of solvent-altering high polymer material | |
| CN211170905U (en) | Suspension type anti-corrosion device | |
| CN221221905U (en) | Quick plugging device for water supply pipeline | |
| CN113898802A (en) | Anti-corrosion flange connecting structure | |
| CN204834756U (en) | Fuel cell metal bipolar plate of carbon is plated on surface | |
| CN216867785U (en) | Marine anti-corrosion pipeline joint insulation structure | |
| CN210796635U (en) | Corrosion-resistant seal head |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220128 |