CN111041495A - External anode protection device for underwater facilities - Google Patents
External anode protection device for underwater facilities Download PDFInfo
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- CN111041495A CN111041495A CN201911026080.7A CN201911026080A CN111041495A CN 111041495 A CN111041495 A CN 111041495A CN 201911026080 A CN201911026080 A CN 201911026080A CN 111041495 A CN111041495 A CN 111041495A
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- groove
- positioning
- protection device
- joint
- external anode
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- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Prevention Of Electric Corrosion (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses an external anode protection device of an underwater facility, which supplements an original anode consumed underwater by connecting an underwater steel structure, and comprises a conductive joint male head, a joint female head and a standby anode, wherein one end of the joint female head is connected with the underwater steel structure, the other end of the joint female head is provided with a clamping groove, the joint male head comprises a pivoting connection part and a clamping part which are mutually connected, the clamping part is matched with the clamping groove, and the pivoting connection part is connected with the standby anode used for consumption through a cable.
Description
Technical Field
The invention relates to the technical field, in particular to an external anode protection device for an underwater facility.
Background
At present, with the development of the offshore oil industry, the offshore oil development gradually moves from shallow water to deep water, underwater facilities are difficult to maintain under the deep water condition, and serious corrosion can cause the failure of underwater products and systems. Under the deepwater condition, the anticorrosion measure of the underwater facility is mainly a combined anticorrosion mode of a coating and sacrificial anode cathodic protection, but the anticorrosion measure cannot be controlled. In order to prevent corrosion resistance failure caused by coating failure, over-fast anode consumption of cathode protection and the like, an electric connection interface can be reserved in the design of an underwater facility, and a fast electric connector is used for connecting an external standby anode pry to continue the cathode protection of the underwater facility.
The working process of the quick electric connector is as follows, the female connector is welded to a protected underwater facility steel structure, and the electrical continuity of the female connector and the steel structure is guaranteed. The outside of the female head is provided with a coating, the inside of the female head is filled with durable butter to prevent the inside of the female head from being contacted with seawater to cause corrosion, and the female head and a steel structure enter water together by protecting the female head structure with a plastic cap made of polyethylene. When the underwater device is used, an external cable connector is welded to a cable connecting hole arranged in the middle of a male connector and is placed around a structure together with a cable connection standby anode pry, an ROV operating handle is operated through an underwater robot ROV, the male connector is inserted into a female connector and is rotated to be in place, the male connector can be fixed by an elastic piece, durable grease in the female connector is discharged through a discharge hole in the female connector, the inside is free of seawater, at the moment, the female connector welded to the underwater device and the external standby anode pry connected with the male connector are electrically connected, and therefore cathode protection of the underwater device is achieved.
Disclosure of Invention
The present invention is intended to solve the above technical problems to some extent.
In view of the above, the present invention provides an external anode protection device for an underwater installation, which provides a backup anode to continue the cathodic protection of the underwater installation under the condition of anode corrosion protection failure caused by coating failure of the anode of the underwater installation, over-fast anode consumption of the cathodic protection, and the like, thereby reducing the maintenance cost of the underwater cathodic protection system and ensuring the integrity and stability of the underwater production system.
In order to solve the technical problem, the invention provides an external anode protection device for an underwater facility, which comprises a conductive joint male head, a joint female head and a standby anode, wherein one end of the joint female head is connected with an underwater steel structure, the other end of the joint female head is provided with a clamping groove, the joint male head comprises a pivot connection part and a clamping part which are connected with each other, the clamping part is matched with the clamping groove, and the pivot connection part is connected with the standby anode for consumption through a cable.
Furthermore, the pivoting connection part is also connected with a driving mechanism for driving the pivoting connection part to rotate to enter the clamping groove.
Furthermore, the clamping groove comprises a positioning clamping groove section and a reducing clamping groove section which are connected along the grooving direction of the clamping groove, and the positioning clamping groove section is connected with the reducing clamping groove section in a smooth transition mode.
Further, location block groove section includes along fluting section and the spiral section of fluting direction smooth transition connection, a plurality of recesses have been seted up to the inner wall of fluting section, the helicla flute is seted up to the inner wall of spiral section, block portion along its length direction have with the protruding screw thread of recess assorted arch and screw in helicla flute.
Furthermore, the reducing clamping groove section comprises a first cylindrical groove, a circular truncated cone-shaped groove, a second cylindrical groove and a conical groove which are connected in a smooth transition mode along the grooving direction of the reducing clamping groove section.
Further, the diameter of the first cylindrical groove is larger than the diameter of the second cylindrical groove.
Furthermore, at least one positioning through hole is radially arranged on the inner wall of the reducing clamping groove section, an elastic piece is fixed in the positioning through hole, and the elastic piece extends out of the positioning through hole to abut against the joint male head.
Further, the elastic component includes elastic positioning element, spring and supports and lean on the setting element, the both ends of spring are fixed respectively the elastic positioning element with support and lean on the setting element, and set up in the location through-hole, the elastic positioning element is fixed in the location through-hole, support and lean on the setting element can be in the shrink that stretches out under the effect of spring gets into in the location through-hole.
Further, a guide block for guiding the engaging portion into the inside thereof is fixed to an end portion of the engaging groove.
Further, the male head of the joint is provided with a liquid discharge hole communicated with the conical groove.
The invention has the technical effects that: connecting the facility steel construction under water with the one end of connecting female head, the block groove has been seted up to the other end of connecting female head, and the public head of joint includes interconnect's pivot joint portion and block portion, and the block portion is pegged graft to in the block groove, and pivot joint portion passes through the reserve positive pole of cable junction, and then reserve positive pole will replace former positive pole to be consumed, continues the protection of facility negative pole under water.
Drawings
FIG. 1 is a schematic view of the overall structure of an external anode protection device of an underwater installation according to the present invention;
FIG. 2 is a schematic illustration of the positional relationship of the male and female connectors according to the present invention;
FIG. 3 is a cross-sectional view of a connector female according to the present invention;
FIG. 4 is a schematic view of the overall construction of the spring according to the present invention;
FIG. 5 is a schematic view of the use of the resilient member according to the present invention;
fig. 6 is a schematic view of the internal structure of the female connector according to the present invention.
Wherein, 1-a spare anode; 2-connector male; 3-a joint female; 4-a cable; 5-an elastic member; 6-a guide block; 7-liquid discharge holes; 21-a pivot connection; 22-a snap-fit portion; 31-a clamping groove; 51-a resilient positioning element; 52-a spring; 53-abutting against a positioning element; 311-positioning the clamping groove section; 312-variable diameter clamping groove section; 3121-a first cylindrical groove; 3122-a circular truncated groove; 3123-a second cylindrical groove; 3124-a conical slot; 531-oriented to the diagonal surface.
Detailed Description
The present invention is further described with reference to the following drawings and specific examples so that those skilled in the art can better understand the present invention and can practice the present invention, but the examples are not intended to limit the present invention.
As shown in fig. 1, fig. 2 and fig. 6, an external anode protection device for underwater facilities supplements an underwater consumed original anode (not shown) by connecting an underwater steel structure, and comprises a standby anode 1, a conductive joint male head 2 and a joint female head 3, wherein one end of the joint female head 3 is connected with the underwater steel structure, the other end of the joint female head 3 is provided with a clamping groove 31, the joint male head 2 comprises a pivot connection part 21 and a clamping part 22 which are connected with each other, the clamping part 22 is matched with the clamping groove 31, and the pivot connection part 21 is connected with the standby anode 1 for consumption through a cable 4.
According to the specific embodiment of the invention, the original anode and the original cathode of the underwater facility form an electrifying loop, when the original anode is gradually consumed due to the loss of electrons, the underwater steel structure facility is connected with one end of the joint female head 3, the other end of the joint female head 3 is provided with the clamping groove 31, the joint male head 2 comprises a pivot connecting part 21 and a clamping part 22 which are connected with each other, the clamping part 22 is inserted into the clamping groove 31, the pivot connecting part 21 is connected with the standby anode 1 through the cable 4, and the standby anode 1 is consumed under the action of the conductive joint male head 2 and the joint female head 3, so that the protection of the cathode of the underwater facility is continued.
Specifically, the male connector 2 and the female connector 3 are made of carbon steel, all contact parts of the female connector and the male connector need surfacing alloy 625, and the thickness of the surfacing alloy 625 is not less than 3 mm.
As shown in fig. 2 and 6, the pivotal connecting portion 21 is also connected to a drive mechanism that drives it to rotate into the engaging groove 31.
According to the embodiment of the present invention, the driving mechanism is an underwater robot ROV, and an operating handle of the underwater robot ROV is connected to the pivotal connection portion 21 to drive the engaging portion 22 to screw into the engaging groove 31.
As shown in fig. 2, 3 and 6, the engaging groove 31 includes a positioning engaging groove section 311 and a reducing engaging groove section 312 connected along the groove opening direction, and the positioning engaging groove section 311 and the reducing engaging groove section 312 are connected in a smooth transition manner, so as to increase the stability of the engaging state between the engaging portion 22 and the engaging groove 31.
As shown in fig. 2 and fig. 3, the positioning and clamping groove section 311 includes a groove section and a spiral section which are connected in a smooth transition manner along the groove direction, a plurality of grooves are formed on an inner wall of the groove section, a spiral groove is formed on an inner wall of the spiral section, and the clamping portion 22 has a protrusion matched with the groove and a protruding thread screwed into the spiral groove along a length direction thereof.
As shown in fig. 3, the variable diameter snap groove section 312 includes a first cylindrical groove 3121, a circular truncated cone groove 3122, a second cylindrical groove 3123, and a conical groove 3124, which are smoothly transitionally connected in a grooving direction thereof.
As shown in fig. 3, the diameter of the first cylindrical groove 3121 is larger than the diameter of the second cylindrical groove 3123.
As shown in fig. 2, 4 and 5, at least one positioning through hole is radially formed in the inner wall of the variable diameter engaging groove section 312, an elastic member 5 is fixed in the positioning through hole, and the elastic member 5 extends out of the positioning through hole and abuts against the male connector 2.
Specifically, a gap is left between the male joint 2 and the second cylindrical groove 3123, so as to ensure that the male joint 2 can be smoothly inserted into the tapered engaging groove section 312.
As shown in fig. 2, 4 and 5, the elastic member 5 includes an elastic positioning member 51, a spring 52 and an abutting positioning member 53, two ends of the spring 52 respectively fix the elastic positioning member 51 and the abutting positioning member 53 and are disposed in the positioning through hole, the elastic positioning member 51 is fixed in the positioning through hole, and the abutting positioning member 53 can extend under the action of the spring 52 and contract into the positioning through hole.
Specifically, the outer edge of the abutting positioning member 53 has a guiding inclined surface 531 arranged along the spiral direction of the spiral section of the positioning engaging groove section 311.
As shown in fig. 2 and 6, a guide block 6 for guiding the engaging portion 22 into the inside thereof is fixed to an end portion of the engaging groove 31.
As shown in fig. 2, the male joint 2 is provided with a drainage hole 7 communicating with the conical groove 3124.
According to the embodiment of the present invention, grease for preventing corrosion inside the engaging groove 31 is stored in advance, and when the engaging portion 22 is screwed into the engaging groove 31, the grease is continuously discharged from the drain hole 7, thereby ensuring that no seawater exists inside.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.
Claims (10)
1. The utility model provides an external positive pole protection device of facility under water, its characterized in that, is including the public head of joint, the female head of joint and the reserve positive pole that can electrically conduct, the steel construction under water is connected to the one end of the female head of joint, the block groove has been seted up to the other end of the female head of joint, the public head of joint is including the pivot connection portion and the block portion of interconnect, the block portion with block groove looks adaptation, pivot connection portion is used for consuming through cable connection the reserve positive pole.
2. The subsea facility external anode protection device of claim 1, wherein the pivotal connection is further connected to a drive mechanism that drives it to rotate into the catch groove.
3. The external anode protection device of claim 1, wherein the clamping groove comprises a positioning clamping groove section and a variable diameter clamping groove section which are connected along the slotting direction, and the positioning clamping groove section is in smooth transition connection with the variable diameter clamping groove section.
4. The external anode protection device for underwater facilities of claim 3, wherein the positioning and clamping groove section comprises a groove section and a spiral section which are connected in a smooth transition manner along a groove opening direction, a plurality of grooves are formed in the inner wall of the groove section, a spiral groove is formed in the inner wall of the spiral section, and the clamping portion is provided with a protrusion matched with the groove and a protruding thread screwed into the spiral groove along the length direction of the clamping portion.
5. The external anode protection device of claim 3, wherein the variable diameter clamping groove section comprises a first cylindrical groove, a circular truncated cone-shaped groove, a second cylindrical groove and a conical groove which are connected in a smooth transition manner along the grooving direction of the variable diameter clamping groove section.
6. The subsea facility external anode protection device of claim 5, wherein the diameter of the first cylindrical groove is greater than the diameter of the second cylindrical groove.
7. The external anode protection device for underwater facilities of claim 5, wherein the inner wall of the reducing clamping groove section is radially provided with at least one positioning through hole, an elastic part is fixed in the positioning through hole, and the elastic part extends out of the positioning through hole to abut against the male joint.
8. The external anode protection device of underwater facilities of claim 7, wherein the elastic member comprises an elastic positioning member, a spring and a propping positioning member, two ends of the spring are respectively fixed with the elastic positioning member and the propping positioning member and are disposed in the positioning through hole, the elastic positioning member is fixed in the positioning through hole, and the propping positioning member can extend under the action of the spring and contract into the positioning through hole.
9. The external anode protection device of claim 1, wherein a guide block for guiding the engaging portion into the inside of the engaging groove is fixed to an end of the engaging groove.
10. The external anode protection device for underwater facilities of claim 1, wherein the male head of the joint is provided with a liquid discharge hole communicated with the conical groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911026080.7A CN111041495B (en) | 2019-10-25 | 2019-10-25 | External anode protection device for underwater facilities |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911026080.7A CN111041495B (en) | 2019-10-25 | 2019-10-25 | External anode protection device for underwater facilities |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111041495A true CN111041495A (en) | 2020-04-21 |
| CN111041495B CN111041495B (en) | 2022-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911026080.7A Active CN111041495B (en) | 2019-10-25 | 2019-10-25 | External anode protection device for underwater facilities |
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| CN (1) | CN111041495B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201809441U (en) * | 2010-09-17 | 2011-04-27 | 张永新 | Metering station cathodic protection |
| CN104278277A (en) * | 2014-09-28 | 2015-01-14 | 中国海洋石油总公司 | Sacrificial anode heap for rapidly repairing cathode protection |
| CN204783903U (en) * | 2015-07-07 | 2015-11-18 | 北京石油化工学院 | Device of hydrothermality plug under water |
| WO2017007334A1 (en) * | 2015-07-03 | 2017-01-12 | Statoil Petroleum As | Cathodic protection systems |
| CN109931454A (en) * | 2019-03-14 | 2019-06-25 | 哈尔滨工程大学 | A kind of underwater quick transition apparatus |
-
2019
- 2019-10-25 CN CN201911026080.7A patent/CN111041495B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201809441U (en) * | 2010-09-17 | 2011-04-27 | 张永新 | Metering station cathodic protection |
| CN104278277A (en) * | 2014-09-28 | 2015-01-14 | 中国海洋石油总公司 | Sacrificial anode heap for rapidly repairing cathode protection |
| WO2017007334A1 (en) * | 2015-07-03 | 2017-01-12 | Statoil Petroleum As | Cathodic protection systems |
| CN204783903U (en) * | 2015-07-07 | 2015-11-18 | 北京石油化工学院 | Device of hydrothermality plug under water |
| CN109931454A (en) * | 2019-03-14 | 2019-06-25 | 哈尔滨工程大学 | A kind of underwater quick transition apparatus |
Non-Patent Citations (1)
| Title |
|---|
| 陈为全: "《机械设计基础》", 31 August 2018, 北京理工大学出版社 * |
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| CN111041495B (en) | 2022-07-01 |
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Inventor after: Liu Peilin Inventor after: Yu Xuan Inventor after: Wan Mingqi Inventor after: Wang Huifeng Inventor after: Zhang Guoqing Inventor after: Sun Guomin Inventor after: Liang Jian Inventor after: Li Yan Inventor after: Hou Jing Inventor after: Qian Sicheng Inventor after: Chen Bin Inventor before: Liu Peilin Inventor before: Zhou Qingtao Inventor before: Yu Xuan Inventor before: Wan Mingqi Inventor before: Wang Huifeng Inventor before: Zhang Guoqing Inventor before: Sun Guomin Inventor before: Liang Jian Inventor before: Li Yan Inventor before: Hou Jing Inventor before: Qian Sicheng Inventor before: Chen Bin |
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