CN105386062B - A kind of protective cover of impressed current anode - Google Patents
A kind of protective cover of impressed current anode Download PDFInfo
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- CN105386062B CN105386062B CN201510941419.1A CN201510941419A CN105386062B CN 105386062 B CN105386062 B CN 105386062B CN 201510941419 A CN201510941419 A CN 201510941419A CN 105386062 B CN105386062 B CN 105386062B
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- shield
- impressed current
- outer shield
- current 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
- C23F13/08—Electrodes specially adapted for inhibiting corrosion by cathodic protection; Manufacture thereof; Conducting electric current thereto
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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)
Abstract
The present invention relates to a kind of protective cover of impressed current anode, it includes shield, two flanges, a capping, a base and a support bar in an outer shield, one；Uniform intervals set uniform intervals on some first through hole, interior shield to set some second through holes on outer shield；Outer shield two ends are respectively fixedly connected with a flange, capping is fixedly installed in outer shield bottom, card sets base in the outer shield at the top of capping, shield in fixed is embedded between the top of outer shield and base, the centrally disposed support bar of interior shield, one end of support bar is fixed with base, the other end of support bar at the top of outer shield with fixing, uniform intervals set 1~6 impressed current anode to be protected in the interior shield of support bar the week side of boss, one end of each impressed current anode to be protected is fixed with base, the other end of each impressed current anode to be protected at the top of outer shield with fixing, and the cable on each impressed current anode to be protected both passes through outer shield top and is connected with respective flange with external cable.The present invention can effectively improve the reliability and durability of impressed current anode.
Description
Technical field
The present invention relates to a kind of protective cover, more particularly to a kind of protective cover of impressed current anode.
Background technology
Ocean platform is the great basic facility of offshore petroleum resources exploitation, and cost is high, but its submerged structure by
In for a long time, by seawater corrosion, its reliability and durability receive severe challenge.Therefore marine structure must be prevented
Corrosion protection, conventional anti-corrosion method is to use galvanic anode protection maintaining method in the prior art, although this method can be one
Determine to prevent marine structure from corroding in degree, but this method also has unsurmountable defect, it is main to include two aspects：One is
This method additional mass is big, and then improves Offshore Platform Design, construction and installation cost indirectly；Two be this method consumption rate
Greatly, environmental pollution and then is exacerbated indirectly.Impressed current cathodic protection system not only has compared with galvanic anode protection maintaining method
The characteristics of saving resource and had no adverse effects to environment, and integrated cost is relatively low.Therefore, impressed current cathodic protection system exists
Ocean engineering cathodic protection field is widely applied.
One of reliability and durability key of impressed current cathodic protection system are impressed current anode, impressed current anode conduct
Core component in impressed current cathodic protection system, should have low consumption rate and high performance advantage.At present, impressed current
The impressed current anode of system is directly exposed in seawater or in single layered porous shield, therefore impressed current anode is easily by mechanical collision
Or scraping causes its face coat to be damaged, especially in the sea situation that flow velocity is fast or silt content is big, impressed current anode is by for a long time
Wash away, its surface is easily abraded, coating is easier to be damaged, the ability of erosion control brush wear is poor, so as to have a strong impact on impressed current anode
Reliability and durability, and then also had a strong impact on the reliability and durability of whole impressed current cathodic protection system.
The content of the invention
In view of the above-mentioned problems, it is an object of the invention to provide a kind of protective cover of impressed current anode, auxiliary can be effectively improved
The reliability and durability of anode.
To realize above-mentioned technical purpose, the present invention takes following technical scheme：A kind of protective cover of impressed current anode, it includes
One outer shield, shield, two flanges, a capping, a base and a support bar in one；The outer shield is top closing bottom opening
Tubular structure, the interior shield be tubular structure, external diameter r of the internal diameter than the interior shield of the outer shieldoBig 1.1roArrive
1.5ro, uniform intervals set some first through hole on the outer shield, and the gross areas of all first through hole is equal to be protected
Uniform intervals set some second through holes on the work area of impressed current anode, the interior shield, all second through holes it is total
Area is equal to the work area of the impressed current anode to be protected；The outer shield two ends are respectively fixedly connected with flange described in one, institute
State outer shield bottom and the capping is fixedly installed, card sets the base in the outer shield at the top of the capping, described
The fixed interior shield is embedded at the top of outer shield between the base, the interior centrally disposed support bar of shield is described
One end of support bar is fixed with the base, the other end of the support bar and fixed at the top of the outer shield, the support bar
Uniform intervals set 1~6 impressed current anode to be protected, each impressed current anode to be protected in the interior shield of the week side of boss
One end fixed with the base, the other end of each impressed current anode to be protected with it is fixed at the top of the outer shield, and often
Cable described in one on impressed current anode to be protected is both passed through at the top of the outer shield and the corresponding flange is connected with external cable.
The outer shield two ends set the external screw thread being connected with the flange, the bottom interior wall of the outer shield respectively
Set to be additionally provided with the internal thread being connected with the capping, the outer shield lower inner wall and set the base for card
It is provided with boss, the outer shield top inner wall at the top of the mounting groove for plugging the fixed interior shield, the outer shield
It is provided with for fixing the support bar and impressed current anode mounting hole to be protected, the first through hole is strip through hole, described
T-shaped reinforcement is uniformly embedded between the inwall and outer wall of outer shield.
T-shaped reinforcement is uniformly embedded between the inwall and outer wall of the interior shield, second through hole is strip through hole.
Second lead to the hole site of the first through hole of the outer shield and the interior shield interlocks.
The capping is the structure of a section in echelon, and the connection end of the capping is provided with and mutually fitted with the outer shield
The external screw thread answered.
The base is a rondelle structure, and centrally disposed the one of the base is used to wear the logical of the fixed support bar
Uniform intervals set 1~6 and are used to be fixedly connected with the impressed current anode to be protected on hole, the base of the through hole the week side of boss
Blind hole, the diameter of the blind hole, which is equal in the external diameter of the impressed current anode to be protected, and the blind hole, is filled with epoxy resin.
The support bar includes titanium metal pipe and polyfluortetraethylene pipe, and the polyfluortetraethylene pipe parcel is arranged on titanium
On the outside of pipe；One end of the support bar wears fixation, the other end of the support bar by the first cold pressing anchorage with the base
By the described second cold pressing anchorage with wearing fixation at the top of the outer shield.
Epoxy resin or silicon rubber are filled with the inner chamber of each flange.
The top of the impressed current anode to be protected is fixed by a short screw with the outer shield, and the short screw is provided with
For the groove of the cable penetration.
The present invention is due to taking above technical scheme, and it has advantages below：1st, the present invention to be to be protected due to aiding in sun
Pole sets outer shield and interior shield, therefore solves the problems, such as the destruction that mechanical collision scratches for impressed current anode surface to be protected,
The erosion problem that washes away of current, silt for impressed current anode face coat to be protected is solved, and then auxiliary can be effectively improved
The reliability and durability of anode.2nd, the present invention is due to the internal diameter of specific setting outer shield and the external diameter of interior shield, and then limits
Gap between outer shield and interior shield, thus be effectively ensured seawater can be circulated between outer shield and interior shield it is suitable
Freely.3rd, the present invention between the inwall and outer wall of outer shield between the inwall and outer wall of interior shield due to being respectively provided with T-shaped reinforcement
Muscle, therefore further enhance the rigidity and intensity of the present invention.4th, the present invention is due on the basis for the protection demand for considering real sea
It is upper to set the first through hole of outer shield and the second lead to the hole site of interior shield to interlock, therefore, it is not only able to effectively improve auxiliary sun
The reliability and durability of pole, and the good circulation of seawater inside and outside shield is effectively ensured, reduce the influence to loop resistance.
5th, the present invention remains to effectively guarantor due to setting support bar, therefore in the case that wave force etc. is impacted to the present invention
Demonstrate,prove the integrality of the present invention.6th, the present invention is due to the specific first through hole for setting outer shield and the shape of the second through hole of interior shield
Shape, therefore seawater is highly convenient for into inside shield.7th, the present invention fills epoxy resin or silicon due to being arranged in flange cavity
Rubber, therefore effectively increase the reliability of impressed current anode work to be protected.Summary, the present invention is strong from protection against erosion, machinery
Degree, the aspect of waterproof sealing three improve the working life and reliability of impressed current anode in impressed current cathodic protection system, Ke Yiguang
It is general to be applied to Naval Architecture and Ocean Engineering impressed current cathodic protection field.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is Fig. 1 A-A schematic cross-sectional views；
Fig. 3 is Fig. 1 schematic top plan view；
Fig. 4 is the structural representation of the outer shield of the present invention；
Fig. 5 is Fig. 4 A-A schematic cross-sectional views；
Fig. 6 is Fig. 4 B-B schematic cross-sectional views；
Fig. 7 is Fig. 4 C-C schematic cross-sectional views；
Fig. 8 is the structural representation of the interior shield of the present invention；
Fig. 9 is Fig. 8 schematic top plan view；
Figure 10 is Fig. 8 A-A schematic cross-sectional views；
Figure 11 is the assembling structure schematic diagram of the present invention；
Figure 12 is the capping schematic top plan view of the present invention；
Figure 13 is Figure 12 schematic front view；
Figure 14 is Figure 12 A-A schematic cross-sectional views；
Figure 15 is the understructure schematic diagram of the present invention；
Figure 16 is Figure 15 schematic front view；
Figure 17 is Figure 15 A-A schematic cross-sectional views；
Figure 18 is the supporting bar structure schematic diagram of the present invention；
Figure 19 is Figure 18 schematic top plan view；
Figure 20 is Figure 18 A-A schematic cross-sectional views；
Figure 21 is the flange top view of the present invention；
Figure 22 is Figure 21 A-A schematic cross-sectional views；
Figure 23 is the flange schematic front view of the present invention；
Figure 24 is Figure 11 I to enlarged diagram；
Figure 25 is the schematic cross-sectional view of short screw of the present invention；
Figure 26 is the schematic top plan view of short screw of the present invention；
Figure 27 is the close-up schematic view of impressed current anode to be protected of the invention；
Figure 28 is the schematic top plan view of impressed current anode to be protected of the invention.
Embodiment
The present invention is described in detail with reference to the accompanying drawings and examples.
As shown in Fig. 1~11, the protective cover of impressed current anode of the invention includes shield 2, two flanges in an outer shield 1, one
3rd, 4, one base 5 of capping and a support bar 6；Wherein, outer shield 1 is the tubular structure of top closing bottom opening, interior shield 2
For the tubular structure of both ends open, external diameter r of the internal diameter than interior shield 2 of outer shield 1oBig 1.1roTo 1.5ro, so that proper interior shield
When cover 2 is located in outer shield 1, the gap d between outer shield 1 and interior shield 2 is in 1.1roTo 1.5roBetween, it is uniform on outer shield 1
Interval opens up some first through hole 11, and the gross area of all first through hole 11 is equal to the work area of impressed current anode 7 to be protected, interior
Uniform intervals open up some second through holes 21 on shield 2, and the gross area of all second through holes 21 is equal to impressed current anode 7 to be protected
Work area；
The two ends of outer shield 1 are respectively fixedly connected with a flange 3, and capping 4 is fixedly installed in the bottom of outer shield 1, positioned at the top of capping 4
Outer shield 1 in card set base 5, shield 2 in fixed is embedded between the top of outer shield 1 and base 5, the center of interior shield 2 is set
Support bar 6 is put, one end and the base 5 of support bar 6 are fixed, the other end of support bar 6 and the top of outer shield 1 are fixed, support bar 6 weeks
Uniform intervals are set in 1~6 impressed current anode 7 to be protected, the present embodiment in the interior shield 2 of side, of impressed current anode 7 to be protected
Number be 3, one end of each impressed current anode 7 to be protected is fixed with base 5, the other end of each impressed current anode 7 to be protected with outside
The top of shield 1 is fixed, and the cable 71 on each impressed current anode to be protected 7 both passes through the top of outer shield 1 and respective flange 3 and outer
Portion's cable connection.
In a preferred embodiment, in order to further strengthen the rigidity and intensity of outer shield 1, the inwall of outer shield 1
Uniformly it is embedded T-shaped reinforcement 12 between outer wall, and the wing plate curvature and the outer wall of outer shield 1 of the T-shaped reinforcement 12 on outer shield 1
Curvature is identical；In order to ensure corrosion resistance that outer shield 1 is good, outer shield 1 is processed into using polytetrafluoroethylene (PTFE)；Outer shield 1
Two ends set the external screw thread being connected with flange 3 respectively, and the bottom interior wall of outer shield 1 sets interior with the mating connection of capping 4
It is additionally provided with screw thread, the lower inner wall of outer shield 1 in the boss 13 that base 5 is set for card, the top inner wall of outer shield 1 and is provided with use
In the mounting groove for plugging shield 2 in fixed, the top of outer shield 1 is provided with mounting hole 14 for fixing support bar 6 and to be protected
Impressed current anode mounting hole 15；Flowed into for the ease of seawater in outer shield 1, first through hole 11 can be strip through hole.
In a preferred embodiment, in order to further strengthen the rigidity and intensity of interior shield 2, the inwall of interior shield 2
It is uniform between outer wall to be embedded the T-shaped reinforcement 22 being processed into by titanium, and the wing plate of the T-shaped reinforcement 22 on interior shield 2 is bent
Rate is identical with the interior outer wall curvature of shield 2；In order to ensure corrosion resistance that interior shield 2 is good, interior shield 2 is added using polytetrafluoroethylene (PTFE)
Work is made；Flowed into for the ease of seawater in interior shield 2, the second through hole 21 is strip through hole.
In a preferred embodiment, according to the protection demand in real sea, the first through hole 11 and interior shield 2 of outer shield 1
The position of the second through hole 21 interlock, staggeredly degree is 0%~100%.
In a preferred embodiment, as shown in Figure 12~14, capping 4 is one by cutting that polytetrafluoroethylene (PTFE) is processed into
The structure of face in echelon, and the connection end of capping 4 is provided with the external screw thread being adapted with outer shield 1.
In a preferred embodiment, as seen in figs. 15-17, base 5 is a circle being processed into by polytetrafluoroethylene (PTFE)
It is uniform on plate profile structure, centrally disposed one through hole 51 for wearing fixed support bar 6 of base 5, the base 5 of the week side of boss of through hole 51
1~6 blind hole 52 for being used to be fixedly connected with impressed current anode 7 to be protected is arranged at intervals, the diameter of blind hole 52 is equal to auxiliary to be protected
The external diameter of anode 7；Asphalt mixtures modified by epoxy resin is filled with order to be further ensured that in impressed current anode 7 to be protected and the steadiness of blind hole 52, blind hole 52
Fat.
In a preferred embodiment, as shown in Figure 18~20, support bar 6 includes titanium metal pipe and polytetrafluoroethylene (PTFE)
Pipe, polyfluortetraethylene pipe parcel is arranged on the outside of titanium metal pipe；In order to be further ensured that the steadiness of support bar 6, support bar 6
One end wears fixation by the first cold pressing anchorage 61 and base 5, and the other end of support bar 6 passes through the second cold pressing anchorage 62 and outer shield
The top of cover 1 wears fixation.
In a preferred embodiment, as shown in Figure 21~23, flange 3 can use the reducing being processed into by titanium to justify
Pipe, the inner side of flange 3 is provided with the internal thread for being connected with the external screw thread of outer shield 1；It is additionally provided with flange 3 for all cables
71 centre bores 31 passed through；In order to realize the waterproof sealing to all cables 71, and it can effectively prevent mechanical failure, flange
Epoxy resin or silicon rubber are filled with 3 inner chamber 32.
In a preferred embodiment, as shown in Figure 24~28, impressed current anode 7 to be protected can be pole shape structure
MMO (titanium-based mixed-metal oxides) anode, the top of impressed current anode 7 to be protected is fixed by a short screw 72 and outer shield 1,
It is provided with short screw 72 on the groove 73 that current supply cable 71 is passed through, the outer shield 1 at the top of short screw 72 and water joint is fixedly installed
74, the cell body that current supply cable 71 is passed through is provided with water joint 74.
Describe the installation method of the protective cover of the impressed current anode of the present invention in detail with reference to specific embodiment：
1st, for the reliability of the threaded connection that ensures flange 3 and outer shield 1, the internal thread and outer shield 1 of each flange 3
External screw thread by the processing of naphthalene-sodium solution；Other each connecting portions use alcohol washes respectively, and by polytetrafluoroethylene (PTFE)
The connecting portion for all parts being processed into is cleaned using alcohol and special surface treating agent, wherein, special surface processing
Agent includes metal cleaner, trichloro ethylene, trichloroethanes and acetone；
2nd, the position of the second through hole 21 of the first through hole 11 of outer shield 1 and interior shield 2 is interlocked, staggeredly degree is according to real sea
Protection demand determine, be specially：When solid particulate matter is more in residing marine site seawater, when souring is larger, outer shield 1
Second through hole 21 of first through hole 11 and interior shield 2 be adjusted to it is fully staggered, sand grain can only by outer shield 1 first lead to
Hole 11 impacts the non-porous position of interior shield 2, it is impossible to impact the surface of impressed current anode 7 to be protected, the energy of impressed current anode 7 to be protected
It is hard to bear to be protected to preferable；When the effect of residing marine site seawater scouring is smaller, the first through hole 11 and interior shield 2 of outer shield 1 are adjusted
The part of the second through hole 21 interlock or without staggeredly, seawater and extraneous seawater in the protective cover of impressed current anode now of the invention
Circulation effect enhancing, on loop resistance influence very little；
3rd, all parts of the protective cover of impressed current anode of the present invention and all impressed current anodes to be protected 7 assemble and determined
Position；
4th, the cable 71 of all impressed current anodes to be protected 7 is connected with external cable, so far completes the auxiliary sun of the present invention
The installation of the protective cover of pole.
Above-described embodiment is merely to illustrate the present invention, wherein the structure of each part, connected mode and manufacture craft etc. are all
It can be varied from, every equivalents carried out on the basis of technical solution of the present invention and improvement should not be excluded
Outside protection scope of the present invention.
Claims (9)
1. a kind of protective cover of impressed current anode, it is characterised in that：It include an outer shield, shield in one, two flanges, a capping,
One base and a support bar；
The outer shield is the tubular structure of top closing bottom opening, and the interior shield is tubular structure, the outer shield
External diameter r of the internal diameter than the interior shieldoBig 1.1roTo 1.5ro, uniform intervals set some first through hole, institute on the outer shield
The gross area for having the first through hole is equal to the work area of impressed current anode to be protected, if uniform intervals are set on the interior shield
Dry second through hole, the gross area of all second through holes is equal to the work area of the impressed current anode to be protected；
The outer shield two ends are respectively fixedly connected with flange described in one, and the outer shield bottom is fixedly installed the capping, is located at
Card sets and is embedded fixed institute between the base at the top of the base, the outer shield in the outer shield at the top of the capping
Interior shield is stated, the interior centrally disposed support bar of shield, one end of the support bar is fixed with the base, the support
The other end of bar and fixed at the top of the outer shield, uniform intervals setting 1~6 in the interior shield of the support bar the week side of boss
The impressed current anode to be protected, one end of each impressed current anode to be protected is fixed with the base, each described to be protected
The other end of impressed current anode at the top of the outer shield with fixing, and the cable on each impressed current anode to be protected both passes through institute
State at the top of outer shield and the corresponding flange is connected with external cable.
2. a kind of protective cover of impressed current anode as claimed in claim 1, it is characterised in that：The outer shield two ends set respectively with
The external screw thread that the flange is connected, the bottom interior wall of the outer shield sets the internal thread being connected with the capping,
It is additionally provided with the boss that the base is set for card, the outer shield top inner wall and is provided with the outer shield lower inner wall
It is provided with the top of mounting groove for plugging the fixed interior shield, the outer shield for fixing the support bar and to be protected
Impressed current anode mounting hole, the first through hole is strip through hole, is uniformly embedded between the inwall and outer wall of the outer shield T-shaped
Reinforcement.
3. a kind of protective cover of impressed current anode as claimed in claim 1, it is characterised in that：The inwall of the interior shield and outer wall it
Between be uniformly embedded T-shaped reinforcement, second through hole is strip through hole.
4. a kind of protective cover of impressed current anode as claimed in claim 1, it is characterised in that：The first through hole of the outer shield and institute
The second lead to the hole site for stating interior shield interlocks.
5. a kind of protective cover of impressed current anode as described in Claims 1 to 4 any one, it is characterised in that：The capping is one
The structure of section in echelon, and the connection end of the capping is provided with the external screw thread being adapted with the outer shield.
6. a kind of protective cover of impressed current anode as described in Claims 1 to 4 any one, it is characterised in that：The base is one
Rondelle structure, centrally disposed the one of the base is used to wear the through hole for fixing the support bar, the institute of the through hole the week side of boss
State uniform intervals on base and 1~6 blind hole for being used to be fixedly connected with the impressed current anode to be protected, the diameter of the blind hole are set
Equal to the external diameter of the impressed current anode to be protected, and the blind hole is interior filled with epoxy resin.
7. a kind of protective cover of impressed current anode as described in Claims 1 to 4 any one, it is characterised in that：The support bar bag
Titanium metal pipe and polyfluortetraethylene pipe are included, the polyfluortetraethylene pipe parcel is arranged on the outside of titanium metal pipe；The support bar
One end wears fixation by the first cold pressing anchorage and the base, and the other end of the support bar passes through the described second cold pressing anchorage
With wearing fixation at the top of the outer shield.
8. a kind of protective cover of impressed current anode as described in Claims 1 to 4 any one, it is characterised in that：Each flange
Inner chamber in be filled with epoxy resin or silicon rubber.
9. a kind of protective cover of impressed current anode as described in Claims 1 to 4 any one, it is characterised in that：It is described to be protected auxiliary
The top of supporing yang pole is fixed by a short screw with the outer shield, and the short screw is provided with for the logical of the cable penetration
Groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510941419.1A CN105386062B (en) | 2015-12-16 | 2015-12-16 | A kind of protective cover of impressed current anode |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510941419.1A CN105386062B (en) | 2015-12-16 | 2015-12-16 | A kind of protective cover of impressed current anode |
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| Publication Number | Publication Date |
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| CN105386062A CN105386062A (en) | 2016-03-09 |
| CN105386062B true CN105386062B (en) | 2017-10-27 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105925988B (en) * | 2016-07-06 | 2018-09-28 | 天津隆顺技术服务有限公司 | A kind of antisepsis protector and storage tank of storage tank bottom |
| CN106929862B (en) * | 2017-04-19 | 2019-01-25 | 中国海洋石油集团有限公司 | A kind of telescopic auxiliary anode device of resistance to hypochlorous acid |
| CN206797665U (en) * | 2017-06-07 | 2017-12-26 | 广船国际有限公司 | A kind of de-icer boot and ship |
| CN107435719A (en) * | 2017-10-12 | 2017-12-05 | 中船第九设计研究院工程有限公司 | A kind of subaqueous slumping worm drive screw rod |
| CN109252171A (en) * | 2018-09-12 | 2019-01-22 | 镇江麒麟船舶设备有限公司 | A kind of Impressed Current Cathodic Protection Anodes device for ship |
| CN110847129A (en) * | 2019-11-08 | 2020-02-28 | 中核核电运行管理有限公司 | Installation fixing device of supplementary positive pole of nuclear power station outlet flashboard guide slot |
| CN111705320A (en) * | 2020-05-08 | 2020-09-25 | 中国船舶重工集团公司第七二五研究所 | Auxiliary anode assembly for protecting cathode of icebreaker |
| CN111826661A (en) * | 2020-08-31 | 2020-10-27 | 大连科迈尔防腐科技有限公司 | Strong current auxiliary anode structure with external protective cover |
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| CN202558942U (en) * | 2012-05-29 | 2012-11-28 | 陕西鼎和源瑞环境工程有限公司 | High-efficiency oil tube anode protector |
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| CN103643238A (en) * | 2013-11-27 | 2014-03-19 | 中交天津港湾工程研究院有限公司 | Device for guaranteeing normal operation of sacrificial anode |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US7967959B2 (en) * | 2009-04-24 | 2011-06-28 | Diamond Offshore Drilling, Inc. | Cathodic protection method and apparatus |
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|---|---|---|---|---|
| CN202558942U (en) * | 2012-05-29 | 2012-11-28 | 陕西鼎和源瑞环境工程有限公司 | High-efficiency oil tube anode protector |
| CN103014723A (en) * | 2013-01-10 | 2013-04-03 | 中国石油大学(华东) | Corrosion controller of oil well production equipment and sucker rod employing controller |
| CN103643238A (en) * | 2013-11-27 | 2014-03-19 | 中交天津港湾工程研究院有限公司 | Device for guaranteeing normal operation of sacrificial anode |
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| CN105386062A (en) | 2016-03-09 |
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