CN215209631U

CN215209631U - Auxiliary anode device for cathode protection of ocean building

Info

Publication number: CN215209631U
Application number: CN202121340702.6U
Authority: CN
Inventors: 李海洪; 邓春林; 方翔; 熊建波; 范志宏; 张东方
Original assignee: CCCC Fourth Harbor Engineering Institute Co Ltd
Current assignee: CCCC Fourth Harbor Engineering Institute Co Ltd
Priority date: 2021-06-16
Filing date: 2021-06-16
Publication date: 2021-12-17
Anticipated expiration: 2031-06-16

Abstract

The utility model provides a marine structure cathodic protection is with supplementary positive pole device, including the positive pole body, and a support, positive pole bracket and insulating protection pipe, the one end at the support is fixed to the positive pole bracket, and it is equipped with the installation cavity, insulating protection pipe places in the installation cavity, it includes the body, set up two locating plates in the body both ends respectively and establish two caps at the body both ends respectively by the cover, be equipped with a plurality of through-holes on the body, be equipped with the fixed orifices on the locating plate, the chamber wall butt of cap and installation cavity, the positive pole body sets up in the body, and insert in the fixed orifices of two locating plates respectively at its both ends, the one end of the positive pole body is connected with the cable, stretch out to the positive pole bracket outside after passing corresponding cap and positive pole bracket in proper order. The utility model discloses the installation is simple, and is not fragile, can reliably work for a long time, can carry out effective cathodic protection in marine structure's service life.

Description

Auxiliary anode device for cathode protection of ocean building

Technical Field

The utility model belongs to the technical field of ocean engineering, especially, relate to an ocean building cathodic protection is with supplementary anode assembly.

Background

When cathodic protection is used to protect marine structures, it can be divided into sacrificial anode systems and impressed current cathodic protection systems, depending on the manner in which the protection current is provided. The impressed current cathodic protection system is suitable for wharf steel piles, offshore oil platforms and other underwater parts of steel structures with larger protection area, which need larger protection current.

Impressed current cathodic protection systems are typically comprised of a dc power supply, an auxiliary anode, a reference electrode, and connecting cables. The auxiliary anode assembly is an important component of an impressed current cathodic protection system and is used for transmitting protection current provided by a direct current power supply to the surface of a protected metal body through a cable. The auxiliary anode assembly is typically comprised of an auxiliary anode body and an anode carrier. The auxiliary anode body functions as a drain, and the anode carrier functions to fix and insulate the auxiliary anode body. The existing auxiliary anode assembly for ocean engineering is mainly divided into a seabed type and a suspension type.

The seabed type auxiliary anode device is characterized in that one or more auxiliary anodes are arranged on a prefabricated concrete base or similar heavy objects and are arranged on the seabed where a protected marine structure is located during installation. Typically the base and anode are completely assembled in the shop and then shipped to the site. In order to prevent the anode base from shifting or moving on the seabed, causing damage or disconnection of the cables connecting the anodes, the base must have a sufficient weight, typically above 500 kg. Another problem with the use of the seabed type is that the auxiliary anode must be kept above the seabed at all times, and if the anode base sinks or is covered with silt, the performance of the anode is affected and the protection current may not reach the expected value or even be transmitted to the protected marine structure at all. To avoid this problem, some seabed anodes have a structure of a lifting anode device, but the structure is easily damaged and fails due to the influence of ocean tides, wind power, a strong corrosive environment and the like. Furthermore, in order to avoid interference between the anodes, the anodes on the same base cannot be spaced too close together. The anode base is generally not more than 2500kg, which limits the number of auxiliary anodes carried, generally not more than 5, subject to transport and installation.

The suspended auxiliary anode device vertically places the anode in the seawater through a suspension device on the top of an ocean building. The suspension device can be prefabricated in a building and can also be installed on site through fastening devices such as bolts and the like. The method is simple and convenient to install and is mainly used for anodes with light dead weight, such as MMO (MMO). Obviously, the anode is suspended in water and is easy to shake along with the action of ocean current, wind power, ocean plankton and the like, so that the anode cable joint is damaged and fails. Although auxiliary lifting ropes, weights, etc. may be employed to mitigate the movable range of the anode, they cannot be completely avoided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an auxiliary anode device is used in ocean building cathodic protection, the installation is simple, and is not fragile, can reliably work for a long time, can carry out effective cathodic protection in ocean building's service life.

The utility model discloses a realize through following technical scheme:

the utility model provides an ocean building cathodic protection is with supplementary positive pole device, including the positive pole body, and a support, positive pole bracket and insulating protection pipe, the one end at the support is fixed to the positive pole bracket, and it is equipped with the installation cavity, insulating protection pipe places in the installation cavity, it includes the body, set up two locating plates in the body both ends respectively and establish two caps at the body both ends respectively at the cover, be equipped with a plurality of through-holes on the body, be equipped with the fixed orifices on the locating plate, the chamber wall butt of cap and installation cavity, the positive pole body sets up in the body, and insert the fixed orifices of two locating plates respectively at its both ends, the one end of positive pole body is connected with the cable, stretch out to the positive pole bracket outside after passing corresponding cap and positive pole bracket in proper order.

Further, the anode bracket comprises a first channel steel and two first fixing plates arranged at two ends of the first channel steel, the length of each first fixing plate is larger than the depth of the corresponding first channel steel, a second fixing plate is perpendicularly arranged at one end, far away from the first channel steel, of each first fixing plate, and an installation cavity is formed among the second fixing plate, the first fixing plates and the first channel steel.

Furthermore, the support comprises two first angle steels and two second angle steels, one ends of the first angle steels are fixed on the anode bracket, and two ends of the second angle steels are respectively fixed on the two first angle steels.

Furthermore, a second channel steel is arranged at one end, away from the anode bracket, of the first angle steel, and a plurality of threaded holes are formed in the second channel steel.

Furthermore, one end of the first angle steel, which is far away from the anode bracket, is provided with a hoop.

Further, the pipe body and the pipe cap are made of one of PVC, polytetrafluoroethylene, rubber, ceramics and glass fiber, and the positioning plate is a plastic plate.

Further, the outer side of the cable is sleeved with a protective hose.

Further, the anode body is of a long strip plate-shaped or tubular structure.

Compared with the prior art, the beneficial effects of the utility model are that: the anode body is fixed by the insulating protection tube and the anode bracket, has simple structure, light weight, easy processing and convenient transportation, can be assembled on site, has enough strength, is fixed, can resist the erosion of ocean current and wind power, and can work reliably for a long time; the positive pole body is arranged in the aquatic, and the risk that no silt covered, the positive pole body outside has insulating protection tube, effectively avoids with marine organism's direct contact, easily changes the positive pole body simultaneously.

Drawings

FIG. 1 is a schematic structural view of an auxiliary anode device for cathodic protection of a marine structure according to the present invention;

fig. 2 is a sectional view taken along line a-a of fig. 1.

In the figure, 1-anode body, 2-tube body, 3-positioning plate, 4-tube cap, 5-cable, 6-first channel steel, 7-first fixing plate, 8-second fixing plate, 9-first angle steel, 10-second angle steel and 11-second channel steel.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present invention, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the utility model is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element to be referred must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1 and 2, fig. 1 is a schematic structural view of an auxiliary anode device for protecting a cathode of a marine structure according to the present invention, and fig. 2 is a sectional view taken along line a-a in fig. 1. The utility model provides an ocean building cathodic protection is with supplementary positive pole device, includes positive pole body 1, support, positive pole bracket and insulating protection pipe, and positive pole body 1 is arranged in the positive pole bracket through insulating protection pipe, and the positive pole bracket is fixed on being protected the building through the support, and insulating protection pipe and positive pole bracket play the effect of fixed positive pole body 1.

Specifically, the anode bracket is fixed at one end of the support, and is provided with a mounting cavity for placing an insulating protection tube. In an embodiment, the anode bracket comprises a first channel steel 6 and two first fixing plates 7 arranged at two ends of the first channel steel 6, the length of each first fixing plate 7 is greater than the depth of the first channel steel 6, a second fixing plate 8 is vertically arranged at one end, far away from the first channel steel 6, of each first fixing plate 7, and an installation cavity is defined by the second fixing plates 8, the first fixing plates 7 and the first channel steel 6. The anode bracket is simple to mount and has enough strength, and the length of the anode bracket can be flexibly determined according to the design, so that the anode bracket has wide applicability.

Insulating protection tube places in the installation cavity, and its both ends and the chamber wall contact of installation cavity to insulating protection tube can be fixed to the positive pole bracket, and insulating protection tube is used for installing positive pole body 1, can play fixed insulating effect to positive pole body 1. The insulating protection tube includes body 2, set up two locating plates 3 in body 2 both ends respectively and overlap respectively and establish two caps 4 at body 2 both ends, is equipped with a plurality of through-holes on the body 2, is equipped with the fixed orifices on the locating plate 3, cap 4 and the chamber wall butt of installation cavity. In one embodiment, the tube body 2 and the tube cap 4 are made of one of PVC, teflon, rubber, ceramic, and glass fiber, and the positioning plate 3 is a plastic plate. Preferably, the tube body 2 and the tube cap 4 are made of PVC material.

The anode body 1 is arranged in the tube body 2, two ends of the anode body are respectively inserted into the fixing holes of the two positioning plates 3, the anode body 1 is fixed in the tube body 2 through the positioning plates 3, one end of the anode body 1 is connected with a cable 5, and the cable 5 sequentially penetrates through the corresponding tube cap 4 and the anode bracket and then extends out of the anode bracket. The working surface of the anode body 1 adopts a titanium matrix, and the surface of the titanium matrix is compounded with conductive mixed metal oxide. The anode body 1 is arranged in the insulating protection tube and is fixedly protected by the insulating protection tube, so that erosion of ocean current and wind power can be resisted, the risk of silt coverage is avoided, and direct contact with marine organisms is effectively avoided. In one embodiment, the anode body 1 is a long strip plate or tubular structure. In one embodiment, the cable 5 is sheathed with a protective hose. The protection hose is a PVC electrical hose and plays a role in protecting the cable 5.

The support includes two first angle steels 9 and two second angle steels 10, and the one end of first angle steel 9 is fixed on the anode bracket, and the both ends of second angle steel 10 are fixed respectively on two first angle steels 9. The other end of the first angle steel 9 is used for being fixed on a protected building, in one embodiment, in order to fix the bracket in the protected building, a second channel steel 11 is arranged at one end, away from the anode bracket, of the first angle steel 9, and a plurality of threaded holes are formed in the second channel steel 11. This arrangement allows the bracket to be secured to the building to be protected by bolts or the like. In one embodiment, an end of the first angle steel 9 away from the anode bracket is provided with a hoop. The arrangement enables the bracket to be fixed on a columnar protected building such as a wharf steel pile through the anchor ear.

When the auxiliary anode device for the cathode protection of the ocean building is used, the bracket, the anode bracket and the insulating protection tube are assembled and processed according to the drawing, the anode body 1 is plugged into the tube body 2, the positioning plates 3 are plugged into the two ends of the tube body 2, the anode body 1 is fixed in the tube body 2 by the positioning plates 3, so that impact and shaking of water flow can be avoided, then, the pipe caps 4 are sleeved at the two ends of the pipe body 2, the insulating protection pipe plugged in the anode body 1 is placed in the installation cavity of the anode bracket, the insulating protection pipe plugged in the anode body 1 is fixed by the first fixing plate 7, finally, the cable 5 is led out to the outer side of the anode bracket, the auxiliary anode device for cathode protection of the whole ocean building has enough strength, the anode body 1 is fixed, and then, the assembled auxiliary anode device for cathode protection of the whole ocean building is fixed on the protected building by a diver. The auxiliary anode device for the cathode protection of the whole marine building has excellent rigidity and reliability and can stably work for a long time. Meanwhile, the anode body 1 is simple to replace, and the anode body 1 which fails together with the insulating protection tube can be replaced by directly drawing out the anode bracket by a diver.

Compared with the prior art, the beneficial effects of the utility model are that: the anode body 1 is fixed by the insulating protection tube and the anode bracket, the structure is simple, the weight is light, the processing is easy, the transportation is convenient, the anode body can be assembled on site, and meanwhile, the strength is enough, the anode body 1 is fixed, the erosion of ocean current and wind power can be resisted, and the long-term reliable work can be realized; the aquatic is arranged in to the anode body 1, and the risk that no silt covered, the anode body 1 outside has insulation protection tube, effectively avoids with marine organism's direct contact, easily changes anode body 1 simultaneously.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any form, so that any simple modification, equivalent change and modification made by the technical entity of the present invention to the above embodiments without departing from the technical solution of the present invention all fall within the scope of the technical solution of the present invention.

Claims

1. The utility model provides a marine structure cathodic protection is with supplementary positive pole device, its characterized in that, includes the positive pole body, support, positive pole bracket and insulating protection pipe, the positive pole bracket is fixed in the one end of support, and it is equipped with the installation cavity, insulating protection pipe places in the installation cavity, and it includes the body, sets up two locating plates in the body both ends respectively and establishes two pipe caps at the body both ends respectively, be equipped with a plurality of through-holes on the body, be equipped with the fixed orifices on the locating plate, the chamber wall butt of pipe cap and installation cavity, the positive pole body sets up in the body, and inserts two respectively at its both ends in the fixed orifices of locating plate, the one end of the positive pole body is connected with the cable, stretch out to the positive pole bracket outside after passing corresponding pipe cap and positive pole bracket in proper order.

2. The auxiliary anode device for cathodic protection of marine buildings according to claim 1, wherein the anode bracket comprises a first channel steel and two first fixing plates arranged at two ends of the first channel steel, the length of the first fixing plate is greater than the depth of the first channel steel, a second fixing plate is vertically arranged at one end of the first fixing plate far away from the first channel steel, and an installation cavity is defined among the second fixing plate, the first fixing plate and the first channel steel.

3. The auxiliary anode device for cathodic protection of marine structure as defined in claim 1, wherein said bracket comprises two first angle steels and two second angle steels, one end of said first angle steels being fixed to said anode bracket, and both ends of said second angle steels being fixed to said two first angle steels, respectively.

4. The auxiliary anode device for cathodic protection of marine structures as defined in claim 3, wherein said first angle steel has a second channel steel at its end away from said anode bracket, said second channel steel having a plurality of threaded holes.

5. The auxiliary anode device for cathodic protection of marine building as defined in claim 3, wherein said first angle steel has a hoop at one end far from the anode bracket.

6. The auxiliary anode device for cathodic protection of marine structure as defined in claim 1, wherein said tube body and said cap are made of one of PVC, teflon, rubber, ceramic, fiberglass, and said positioning plate is a plastic plate.

7. The auxiliary anode device for cathodic protection of marine structures as defined in claim 1, wherein said cable is sheathed with a protective hose.

8. The auxiliary anode device for cathodic protection of marine structures as defined in claim 1, wherein said anode body is in the form of a long strip plate or a tubular structure.