CN212426183U - Jacket fixed impressed current cathodic protection device - Google Patents
Jacket fixed impressed current cathodic protection device Download PDFInfo
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- CN212426183U CN212426183U CN202020419178.0U CN202020419178U CN212426183U CN 212426183 U CN212426183 U CN 212426183U CN 202020419178 U CN202020419178 U CN 202020419178U CN 212426183 U CN212426183 U CN 212426183U
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- jacket
- anode
- positive pole
- tray
- protection device
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Abstract
The utility model discloses a jacket fixed impressed current cathodic protection device, which comprises an auxiliary anode, an anode tray, an auxiliary anode support, a watertight cover and a binding post, wherein the anode tray is fixed on the auxiliary anode support, the top of the anode tray is provided with a limiting groove for accommodating the auxiliary anode, the auxiliary anode is fixed in the limiting groove, the bottom of the anode tray is buckled with the watertight cover to form a watertight cavity with the watertight cover, the anode tray is provided with a splicing through hole for communicating the limiting groove with the watertight cavity, one end of the binding post extends into the splicing through hole to be connected with the auxiliary anode, the other end of the binding post is connected with an anode cable, the anode cable extends out of the watertight cover, the jacket fixed impressed current cathodic protection device can be used independently or combined with a potentiostat, and the consumption of a sacrificial anode can be reduced when the jacket is used in combination, the cost is saved, the performance is reliable, and the service life is long.
Description
Technical Field
The utility model relates to an anticorrosive technical field of ocean metal particularly, relates to a fixed impressed current cathodic protection device of jacket.
Background
The jacket platform is the most widely used offshore oil platform in current offshore engineering, and generally consists of an upper structure and a base structure. The superstructure is generally made up of upper and lower deck platforms and living, production modules. The foundation structure (i.e., substructure) includes a jacket and piles. These structures are typically steel structures. Because seawater is a strong corrosive medium, if effective anti-corrosion measures are not taken, the jacket platform must be corroded and damaged in a harsh marine environment, the service life and the safe production of the platform are influenced, and the maintenance cost of the platform is increased.
Corrosion control of the jacket typically employs sacrificial anodic cathodic protection. The method has the advantages of no need of an external power supply, small later maintenance amount and no danger of over-protection. Is widely applied to small and medium-sized jacket platforms. However, as the water area of the jacket is deepened, the required protection area of the jacket is larger and larger, and the number of sacrificial anodes required by adopting the sacrificial anode method is extremely large, so that on one hand, the load of the platform is increased, the design index of the steel structure load of the platform is increased, and the cost is additionally increased; and on the other hand, the stress corrosion of the platform is aggravated, and potential risks are caused to the platform. There is thus a need for an auxiliary anode assembly having a long service life and a stable structure.
In addition, the impressed current cathodic protection method does not have the problems of anode sacrifice, and is more and more widely applied to corrosion control of ocean engineering structures due to the advantages of quick installation, large generated current, long service life, no potential ocean ecological pollution hidden danger and the like. The impressed current cathodic protection method can be used alone in corrosion control of the jacket. Meanwhile, the method can be used together with a sacrificial anode method, and can greatly reduce the use amount of the sacrificial anode as the supplement of the initial and final protective currents of the sacrificial anode.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving above-mentioned technical problem to a certain extent.
In view of this, the utility model provides a fixed impressed current cathodic protection device of jacket can use alone also can unite the use of cabinet type constant potential rectifier, can reduce the sacrificial anode quantity during the combined use, practices thrift the cost, and the dependable performance is long service life moreover.
The utility model provides a fixed impressed current cathodic protection device of jacket, includes supplementary positive pole, positive pole tray, supplementary positive pole support, watertight cover and terminal, be fixed with on the supplementary positive pole support the positive pole tray, positive pole tray top is seted up and is held the spacing groove of supplementary positive pole, supplementary positive pole is fixed the spacing inslot, positive pole tray bottom is detained and is established fixed connection the watertight cover, and with the watertight cover forms the watertight chamber, the intercommunication is seted up to the positive pole tray the spacing groove with the grafting through-hole in watertight chamber, the one end of terminal stretches into the grafting through-hole is connected supplementary positive pole, the positive pole cable is connected to the other end of terminal, the positive pole cable stretches out the watertight cover.
The anode cable extends out of the watertight cover and is connected with the anode of the cabinet potentiostat, and the cathode of the cabinet potentiostat is connected with the jacket through the cathode cable.
Furthermore, the output end of the cabinet type potentiostat is connected with the reference electrode.
Furthermore, the other end of the binding post is wound with an anode cable and is fastened through a fastening bolt.
Further, the anode tray comprises a support chassis, a protection baffle and a connecting plate, wherein an opening allowing the watertight cover to extend out is formed in the support chassis, the outer edge of the support chassis is connected with the protection baffle used for protecting the anode tray, and the support chassis is connected with the jacket through the connecting plate.
Further, the anode tray is fixedly connected with the jacket through a plurality of mounting bolts.
Further, the auxiliary anode and the anode tray are coaxially arranged in a disk shape.
Further, the inserting through hole and the anode tray are coaxially arranged.
The technical effects of the utility model reside in that: (1) the auxiliary anode is gradually consumed along with the current flowing out, and therefore the auxiliary anode is protected on the seabed equipment with small current demand.
(2) When the cabinet type potentiostat is used in combination, the consumption of the sacrificial anode can be reduced, the cost is saved, the performance is reliable, and the service life is long.
Drawings
Fig. 1 is a schematic view of the installation of a jacket-mounted impressed current cathodic protection device according to the present invention;
fig. 2 is a front view of a jacket stationary impressed current cathodic protection device according to the present invention;
fig. 3 is a schematic cross-sectional view of a jacket-mounted impressed current cathodic protection device according to the present invention.
Among them, 1-a cathode cable; 2-cabinet potentiostat; 3-a reference electrode; 4-a jacket; 5-an anode cable; 6-an auxiliary anode assembly; 7-auxiliary anode support; 8-an auxiliary anode; 9-an anode tray; 10-fastening bolts; 11-a watertight cover; 12-mounting bolts; 13-a terminal post; 14-cable sheath.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.
As shown in fig. 1, fig. 2 and fig. 3, a fixed impressed current cathodic protection device of jacket, including auxiliary anode 8, positive pole tray 9, auxiliary anode support 7, watertight cover 11 and terminal 13, be fixed with positive pole tray 9 on the auxiliary anode support 7, the spacing groove that holds auxiliary anode 8 is seted up at positive pole tray 9 top, auxiliary anode 8 is fixed at the spacing inslot, positive pole tray 9 bottom is detained and is established the fixed connection watertight cover, and form the watertight chamber with the watertight cover, the grafting through-hole of intercommunication spacing groove and watertight chamber is seted up to positive pole tray 9, terminal 13's one end is stretched into the grafting through-hole and is connected auxiliary anode 8, positive pole cable 5 is connected to terminal 13's the other end, positive pole cable 5 stretches out watertight cover 11.
According to the utility model discloses a specific embodiment, a fixed impressed current cathodic protection device of jacket, be fixed with positive pole tray 9 on the supplementary positive pole support 7, the spacing groove is seted up at positive pole tray 9 top, positive pole tray 9 bottom is detained and is established fixed connection watertight cover, and form the watertight chamber with the watertight cover, connect positive pole tray 9 to set up the grafting through-hole of intercommunication spacing groove and watertight chamber, terminal 13's one end is stretched into the grafting through-hole and is connected supplementary positive pole 8, and supplementary positive pole 8 is fixed at the spacing inslot, positive pole cable 5 one end connecting terminal 13, the positive pole cable 5 other end stretches out the watertight chamber and connects the protected equipment, through the principle of sacrificial anode protection negative pole, can the exclusive use, make supplementary positive pole 8 consume gradually, and then compromise stable in structure's characteristics in the protection subsea equipment.
Specifically, the material of the terminal 13 is the same as that of the lead wire in the anode cable 5.
Specifically, the anode cable 5 is disposed inside the cable sheath 14.
Specifically, the anode tray 9 is made of PVC or teflon.
Specifically, the watertight cover 11 is filled with sealant for waterproof sealing, so that the anode cable 5 and the binding post 13 are prevented from being corroded by seawater.
As shown in figure 1, the device also comprises a cabinet type potentiostat 2, a jacket 4 and a cathode cable 1, wherein an anode cable 5 extends out of a watertight cover 11 to be connected with the anode of the cabinet type potentiostat 2, and the cathode of the cabinet type potentiostat 2 is connected with the jacket 4 through the cathode cable 1.
According to the utility model discloses a specific embodiment starts cabinet type potentiostat 2, makes auxiliary anode 8 consume gradually, and then at protection pipe support 4, can jointly cabinet type potentiostat 2 use, can effectual protection pipe support 4, prevents the sea water to the corruption of pipe support 4, can reduce the sacrificial anode quantity during the combined use, practices thrift the cost, and the dependable performance is long service life moreover.
Specifically, the cabinet type potentiostat 2 is a cabinet type, and is connected with three-phase alternating current and placed on a deck of the jacket 4.
Specifically, there are a plurality of auxiliary anode assemblies 6, and the plurality of auxiliary anode assemblies 6 are equidistantly distributed on the jacket 4 from top to bottom.
As shown in FIG. 1, the output end of the cabinet potentiostat 2 is connected to a reference electrode 3.
According to the utility model discloses a specific embodiment, the jacket 4 surface potential that a plurality of reference electrodes 3 were measured feeds back on cabinet type potentiostat 2 for adjust output current and electric potential, monitor whether jacket 4 electric potential is overprotected or underprotected, wherein, reference electrode 3 distributes in the typical position of jacket, and is close to jacket 4 surface as far as possible, in order to reduce ohmic drop.
Specifically, there are a plurality of reference electrodes 3, and a plurality of reference electrodes 3 are respectively placed at each corner of the middle and bottom of the jacket 4.
As shown in fig. 3, the other end of the terminal 13 is wound with the anode cable 5 and fastened by the fastening bolt 10.
According to the utility model discloses a specific embodiment, fastening bolt 10 has two, be first fastening bolt and second fastening bolt respectively, terminal 13 has with first fastening bolt and second fastening bolt assorted screw thread, terminal 13 has first fastening bolt of screwing at first, the wire winding in the positive pole cable 5 is on terminal 13, second fastening bolt twists soon on terminal 13, adjust first fastening bolt and second fastening bolt, in order to realize fastening the wire in positive pole cable 5, guarantee the stability that positive pole cable 5 and terminal 13 are connected.
Specifically, the material of the binding post is the same as that of the lead in the anode cable 5.
As shown in fig. 3, the anode tray 9 includes a supporting chassis, a protective baffle and a connecting plate, the supporting chassis is provided with an opening allowing the watertight cover to extend out, the outer edge of the supporting chassis is connected with the protective baffle for protecting the anode tray 9, and the supporting chassis is connected with the jacket 4 through the connecting plate, so as to protect the auxiliary anode 8.
Specifically, the connecting plate is cylindrical, and the connecting plate is connected to the jacket 4 by welding or fastening.
As shown in fig. 3, the anode tray 9 and the jacket 4 are fixedly connected by a plurality of mounting bolts 12, so that the fastening effect is good.
As shown in fig. 3, the auxiliary anode 8 and the anode tray 9 are coaxially arranged in a disk shape.
According to the specific embodiment of the utility model, the auxiliary anode 8 is disc-shaped, long service life and stable structure.
In addition, the auxiliary anode 8 and the anode tray 9 may be both in a strip shape.
As shown in fig. 3, the insertion through hole is coaxial with the anode tray 9, so that the auxiliary anode 8 is uniformly consumed, and the service life is prolonged.
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. Equivalent substitutes or changes made by the technical personnel in the technical field on the basis of the utility model are all within the protection scope of the utility model. The protection scope of the present invention is subject to the claims.
Claims (8)
1. The utility model provides a fixed impressed current cathodic protection device of jacket, a serial communication port, including supplementary positive pole, positive pole tray, supplementary positive pole support, watertight cover and terminal, be fixed with on the supplementary positive pole support the positive pole tray, positive pole tray sets up at the top holds supplementary positive pole's spacing groove, supplementary positive pole is fixed spacing inslot, fixed connection is detained to positive pole tray bottom the watertight cover, and with the watertight cover forms the watertight chamber, the intercommunication is seted up to the positive pole tray the spacing groove with the grafting through-hole in watertight chamber, the one end of terminal stretches into the grafting through-hole is connected supplementary positive pole, the positive pole cable is connected to the other end of terminal, the positive pole cable stretches out the watertight cover.
2. The jacket stationary impressed current cathodic protection device of claim 1, further comprising a tank potentiostat, a jacket and a cathode cable, said anode cable extending out of said watertight enclosure connecting the positive pole of said tank potentiostat, the negative pole of said tank potentiostat being connected to said jacket by a cathode cable.
3. The jacket-mounted impressed current cathodic protection device of claim 2, wherein the output of said tank potentiostat is connected to a reference electrode.
4. The jacket-fixed impressed current cathodic protection device of claim 2, wherein the other end of said terminal post is wrapped with an anodic cable and fastened by a fastening bolt.
5. A jacket-fixed impressed current cathodic protection device as claimed in claim 2, wherein said anode tray comprises a support chassis, a protective shield and a connecting plate, said support chassis being provided with an opening allowing said watertight cover to protrude, said protective shield being attached to the outer edge of said support chassis for protecting said anode tray, said support chassis being connected to the jacket by said connecting plate.
6. The jacket stationary impressed current cathodic protection device of claim 5, wherein said anode tray is fixedly attached to said jacket by a plurality of mounting bolts.
7. The jacket stationary impressed current cathodic protection device of claim 1, wherein said auxiliary anode and said anode tray are in the form of coaxially disposed disks.
8. The jacket-mounted impressed current cathodic protection device of claim 7, wherein said plug-in through-hole is disposed coaxially with said anode tray.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020419178.0U CN212426183U (en) | 2020-03-27 | 2020-03-27 | Jacket fixed impressed current cathodic protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020419178.0U CN212426183U (en) | 2020-03-27 | 2020-03-27 | Jacket fixed impressed current cathodic protection device |
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| CN212426183U true CN212426183U (en) | 2021-01-29 |
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| CN202020419178.0U Active CN212426183U (en) | 2020-03-27 | 2020-03-27 | Jacket fixed impressed current cathodic protection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114934276A (en) * | 2022-05-17 | 2022-08-23 | 中国船舶重工集团公司第七二五研究所 | Auxiliary anode of ship self-adaptive environment |
-
2020
- 2020-03-27 CN CN202020419178.0U patent/CN212426183U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114934276A (en) * | 2022-05-17 | 2022-08-23 | 中国船舶重工集团公司第七二五研究所 | Auxiliary anode of ship self-adaptive environment |
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