CN203096179U - Mounting device of impressed current cathodic protection system for marine platform - Google Patents
Mounting device of impressed current cathodic protection system for marine platform Download PDFInfo
- Publication number
- CN203096179U CN203096179U CN 201220698996 CN201220698996U CN203096179U CN 203096179 U CN203096179 U CN 203096179U CN 201220698996 CN201220698996 CN 201220698996 CN 201220698996 U CN201220698996 U CN 201220698996U CN 203096179 U CN203096179 U CN 203096179U
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- Prior art keywords
- steel pillar
- pillar
- platform
- erecting device
- cable
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- 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.)
- Expired - Lifetime
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- 238000004210 cathodic protection Methods 0.000 title claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 71
- 239000010959 steel Substances 0.000 claims abstract description 71
- 238000009413 insulation Methods 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 5
- 239000013535 sea water Substances 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000005538 encapsulation Methods 0.000 description 4
- 229920001903 high density polyethylene Polymers 0.000 description 4
- 239000004700 high-density polyethylene Substances 0.000 description 4
- 239000004593 Epoxy Substances 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- 229920002396 Polyurea Polymers 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229920001084 poly(chloroprene) Polymers 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- -1 ferrous metals Chemical class 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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- Prevention Of Electric Corrosion (AREA)
Abstract
The utility model discloses a mounting device of an impressed current cathodic protection system for a marine platform. The mounting device comprises a steel protection pipe and a cable, wherein the cable is arranged in the steel protection pipe, one end of the cable extends out of the top of the steel protection pipe; the top and the bottom of the steel protection pipe are sealed; a plurality of auxiliary anodes are arranged on the steel protection pipe and auxiliary cathodes are connected with the cable; a plurality of platform rods are arranged on the steel protection pipe and connected with the marine platform to be mounted. The mounting device solves the technical problem that the service life of the existing common sacrificial anode can not satisfy the requirement of the marine oil platform for prolonging the service life, and reduces the work load for modifying the cathode protection system to prolong the service life of the marine oil platform. The mounting device can be widely applied to the corrosion protection of steel materials immersed in seawater.
Description
Technical field
The utility model relates to a kind of erecting device, is specifically related to a kind of erecting device of offshore oil platform impressed current cathodic protection system.
Background technology
In marine petroleum exploitation, most offshore oil platforms adopt ferrous materials, and seawater has very strong corrodibility to iron and steel.In order to protect iron and steel not to be corroded, must apply galvanic protection, method commonly used comprises impressed current and sacrificial anode, and sacrificial anode is widely used at present, and sacrificial anode is aluminum base alloy.The a large amount of non-ferrous metals of sacrificial anode consumption, sacrificial anode not only increases platform weight, also increases the platform moving load, thereby increases the platform steel using amount; In addition, sacrificial anode runs out of and has just lost provide protection, if platform need continue to use, needs new cathodic protection system is installed, and cost is very high.Impressed current method is installed supplementary anode by power supply power supply on the platform on platform, supplementary anode does not consume substantially; environmentally friendly, long service life can be regulated output voltage and outward current according to the platform actual demand; if increase other structures on the platform, do not need to increase newly cathodic protection system.Impressed current Unit Installation method is the important content that cathodic protection system is used; extremely important to impressed current protection effect and global reliability; though impressed current is having great advantage aspect technology and the economy; do not have good installation method all the time, limited the application on the oil platform at sea.
The utility model content
At the problems referred to above, the purpose of this utility model provides a kind of erecting device of offshore platform impressed current cathodic protection system.
The erecting device of a kind of offshore platform impressed current cathodic protection system provided by the utility model comprises steel pillar and cable; Described cable is located in the described steel pillar, and an end of described cable stretches out from the top of described steel pillar; The top of described steel pillar and bottom are sealing setting;
Described steel pillar is provided with several supplementary anodes, and described auxiliary cathode is connected with described cable;
Described steel pillar is provided with several platform rod members, and described platform rod member can be connected with platform to be installed.
In the above-mentioned erecting device, described supplementary anode can be connected with described steel pillar by the supplementary anode strut member.
In the above-mentioned erecting device, described platform rod member is connected with described steel pillar by the pillar strut member.
In the above-mentioned erecting device, it is fixing that described pillar strut member and described steel pillar and platform rod member all can be welding.
In the above-mentioned erecting device, described pillar strut member is provided with isolated flange.
In the above-mentioned erecting device, described steel pillar is provided with several sacrificial anodes, is used for further protecting the steel pillar.
In the above-mentioned erecting device, the top of described steel pillar seals by thermal shrinkable sleeve;
The bottom of described steel pillar seals by steel pillar plug.
In the above-mentioned erecting device, the outside surface of described steel pillar, pillar strut member, isolated flange, supplementary anode strut member and steel pillar plug is coated with insulation layer, this insulation layer is taked any material in chloroprene rubber, polyolefine, epoxy and the polyureas, and its thickness is not less than 2mm; Also be coated with pyrocondensation belt on the insulation layer of described isolated flange.
The utility model is owing to take above technical scheme, and it has the following advantages:
1, the utility model is owing to installed some supplementary anodes on the oil platform at sea; make that all rod members of structure formation complexity all obtain effective cathodic polarization on the offshore oil platform; can adopt impressed current method that offshore oil platform is implemented galvanic protection, realize the utility model purpose.
2, the utility model has protected cable to avoid damaging owing to adopted the steel pillar, is provided with isolated flange on the steel pillar, has guaranteed steel pillar and platform impressed current system electrical isolation, and the overprotection of galvanic protection can not take place.The steel pillar is installed on the platform by the pillar strut member, makes supplementary anode and platform rod member keep certain distance, has guaranteed to adopt quantity few supplementary anode of trying one's best, and the protection potential of platform is in the suitable scope.
3, the utility model has solved the requirement that sacrificial anode now commonly used can not satisfy the offshore oil platform prolongs life work-ing life, reduces the workload that the oil platform prolongs life is transformed cathodic protection system.The utility model can be widely used in the corrosion prevention of immersing the ferrous materials in the seawater.
Description of drawings
Fig. 1 is the front view of erecting device of the present utility model.
Fig. 2 is the side-view of Fig. 1.
Fig. 3 is the synoptic diagram at the steel pillar top of erecting device of the present utility model.
Fig. 4 is the synoptic diagram of the steel pillar bottom of erecting device of the present utility model.
Each mark is as follows among the figure: 1 continuous-current plant, 2 cables, 3 steel pillars, 4 supplementary anodes, 5 platform rod members, 6 pillar strut members, 7 isolated flanges, 8 sacrificial anodes, 9 supplementary anode strut members, 10 thermal shrinkable sleeves, 11 steel pillar plugs.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further, but the utility model is not limited to following examples.
As depicted in figs. 1 and 2, the erecting device of the offshore platform impressed current cathodic protection system that provides of the utility model comprises a steel pillar 3 and cable 2; This cable 2 penetrates in the steel pillar 3, and an end of this cable 2 stretches out from the top of steel pillar 3, is connected with continuous-current plant 1 on being placed on platform deck; As shown in Figure 3, the top of this steel pillar 3 adopts high density polyethylene(HDPE) thermal shrinkable sleeve 10 to carry out encapsulation process, and as shown in Figure 4, the bottom weldable steel pillar plug 11 of this steel pillar 3 carries out encapsulation process; This steel pillar 3 is provided with among a plurality of supplementary anode 4(figure and only illustrates 4), set supplementary anode 4 is connected with steel pillar 3 by supplementary anode strut member 9, and this supplementary anode 4 is connected with cable 2; This steel pillar 3 is connected with 3 platform rod members 5 by pillar strut member 6, and this pillar strut member 6 and steel pillar 3 and platform rod member 5 all adopt the mode of welding to be connected, and the platform rod member 5 of setting is used for ocean platform to be installed and is connected; Each pillar strut member 6 is provided with an isolated flange 7, applies by insulation layer on the outside surface of this isolated flange 7, and it can adopt any material in chloroprene rubber, polyolefine, epoxy and the polyureas, coats by pyrocondensation belt in its insulation layer Shanghai; On steel pillar 3, also have additional 3 sacrificial anodes 8, be used to protect steel pillar 3.In this erecting device, on the outside surface of steel pillar 3, pillar strut member 6, supplementary anode strut member 9 and steel pillar plug 11, also be coated with insulation layer, its thickness can be controlled at more than the 2mm as the case may be.
The erecting device of offshore platform impressed current cathodic protection system of the present utility model, can install according to following process:
1) at first on several platform rod members 5, welds several pillar strut members 6, steel pillar 3 adopts isolated flange 7 to be installed on each pillar strut member 6, the bottom weldable steel pillar plug 11 of steel pillar 3 carries out encapsulation process, several supplementary anode strut members 9 of welding on the steel pillar 3 are installed a supplementary anode 4 on per two supplementary anode strut members 9;
2) several sacrificial anodes 8 of welded and installed on the steel pillar 3;
3) cable 2 penetrates in the steel pillar 3, and an end of cable 2 stretches out from the top of steel pillar 3, is connected with continuous-current plant 1 on being placed on platform deck, and the other end of cable 2 penetrates pillar strut member 6 and is connected with supplementary anode 4;
4) top of steel pillar 3 adopts high density polyethylene(HDPE) thermal shrinkable sleeve 10 to carry out encapsulation process;
During work, unlatching continuous-current plant 1 can be realized the protection to platform.
Claims (9)
1. the erecting device of an offshore platform impressed current cathodic protection system is characterized in that:
Described erecting device comprises steel pillar and cable; Described cable is located in the described steel pillar, and an end of described cable stretches out from the top of described steel pillar; The top of described steel pillar and bottom are sealing setting;
Described steel pillar is provided with several supplementary anodes, and described auxiliary cathode is connected with described cable;
Described steel pillar is provided with several platform rod members, and described platform rod member can be connected with platform to be installed.
2. erecting device according to claim 1 is characterized in that: described supplementary anode is connected with described steel pillar by the supplementary anode strut member.
3. erecting device according to claim 1 and 2 is characterized in that: described platform rod member is connected with described steel pillar by the pillar strut member.
4. erecting device according to claim 3 is characterized in that: it is fixing that described pillar strut member and described steel pillar and platform rod member are welding.
5. erecting device according to claim 4 is characterized in that: described pillar strut member is provided with isolated flange.
6. erecting device according to claim 1 and 2 is characterized in that: described steel pillar is provided with several sacrificial anodes.
7. erecting device according to claim 1 and 2 is characterized in that: the top of described steel pillar seals by thermal shrinkable sleeve;
The bottom of described steel pillar seals by steel pillar plug.
8. erecting device according to claim 7 is characterized in that: the outside surface of described steel pillar, pillar strut member, isolated flange, supplementary anode strut member and steel pillar plug is coated with insulation layer.
9. erecting device according to claim 8 is characterized in that: also be coated with pyrocondensation belt on the insulation layer of described isolated flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220698996 CN203096179U (en) | 2012-12-17 | 2012-12-17 | Mounting device of impressed current cathodic protection system for marine platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220698996 CN203096179U (en) | 2012-12-17 | 2012-12-17 | Mounting device of impressed current cathodic protection system for marine platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203096179U true CN203096179U (en) | 2013-07-31 |
Family
ID=48847597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220698996 Expired - Lifetime CN203096179U (en) | 2012-12-17 | 2012-12-17 | Mounting device of impressed current cathodic protection system for marine platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203096179U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103014722A (en) * | 2012-12-17 | 2013-04-03 | 中国海洋石油总公司 | Device for installing impressed current cathodic protection system on offshore platform |
| CN106159846A (en) * | 2016-07-12 | 2016-11-23 | 中交第三航务工程局有限公司 | Blower fan J-type sea, off-lying sea cable protection pipe and the mounting process of ICCP wire steel pipe |
-
2012
- 2012-12-17 CN CN 201220698996 patent/CN203096179U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103014722A (en) * | 2012-12-17 | 2013-04-03 | 中国海洋石油总公司 | Device for installing impressed current cathodic protection system on offshore platform |
| CN103014722B (en) * | 2012-12-17 | 2015-07-22 | 中国海洋石油总公司 | Device for installing impressed current cathodic protection system on offshore platform |
| CN106159846A (en) * | 2016-07-12 | 2016-11-23 | 中交第三航务工程局有限公司 | Blower fan J-type sea, off-lying sea cable protection pipe and the mounting process of ICCP wire steel pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee after: CNOOC RESEARCH INSTITUTE Co.,Ltd. Patentee after: CHINA NATIONAL OFFSHORE OIL Corp. Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee before: CNOOC Research Institute Patentee before: CHINA NATIONAL OFFSHORE OIL Corp. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130731 |
|
| CX01 | Expiry of patent term |