CN104264157A - Device for corrosion prevention of steel structure splash zone with cathode protection - Google Patents
Device for corrosion prevention of steel structure splash zone with cathode protection Download PDFInfo
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- CN104264157A CN104264157A CN201410540030.1A CN201410540030A CN104264157A CN 104264157 A CN104264157 A CN 104264157A CN 201410540030 A CN201410540030 A CN 201410540030A CN 104264157 A CN104264157 A CN 104264157A
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- splash zone
- steel construction
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- corrosion
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Abstract
The invention discloses a device for corrosion prevention of a steel structure splash zone with cathode protection. The device is characterized by comprising a water-absorbing material layer coating the surface of the steel structure splash zone, wherein the water-absorbing material layer is fixed through hoops, and the hoops adopt hollowed-out structures. In order to solve problems that the steel structure splash zone is low in seawater immersion rate and effective corrosion prevention cannot be performed on the steel structure splash zone with common cathode protection technologies, a conductive coating technology which is relatively simple, convenient and lower in cost is provided, and the conductive coating technology is applicable to corrosion prevention of newly-built offshore steel structure splash zones with cathode protection as well as renewal and repair of existing facilities with cathode protection after corrosion.
Description
Technical field
The present invention relates to a kind of corrosion-resisting device having galvanic protection steel construction, particularly a kind of device for there being galvanic protection steel construction splash zone corrosion to protect.
Background technology
Offshore steel structure is serious at splash zone corrosion, and current means of defence mainly contains heavy-duty coating, the methods such as clad metal, alloy or non-metallic material.
Heavy-duty coating mainly utilizes passivation slow releasing function, galvanic protection effect, buffer action and organic coating shielding effect to reach preservative effect; execution conditions are harsh; and once coatingsurface existing defects; the corrosion of fault location steel construction can be accelerated; and corrosion is not easily found, and there is severe compromise.
Clad metal, alloy or non-metallic material mainly utilize the high anti-corrosion of metal, alloy cathode provide protection, buffer action to reach anticorrosion object; preservative effect is better; but its execution conditions are harsh, construction surface needs good pre-treatment, is unsuitable for marine reparation of having corroded steel construction.
Summary of the invention
The present invention provides a kind of device for there being galvanic protection steel construction splash zone corrosion protect for solving in known technology the technical problem that exists, and simply, cost is low, easy construction for this apparatus structure.
The technical scheme that the present invention takes for the technical problem existed in solution known technology is: a kind of device for there being galvanic protection steel construction splash zone corrosion to protect; comprise the absorbent material layer be coated on surface, steel construction splash zone; described absorbent material layer adopts anchor ear to fix, and described anchor ear is provided with engraved structure.
Described anchor ear is provided with all solid state long-acting silver/silver halide reference electrode.
The thickness of described absorbent material layer is 3 ~ 5cm, adopts non-woven fabrics to be formed.
Described anchor ear adopts PTFE material to make, thickness 8 ~ 15mm, tensile strength 10 ~ 30Mpa.
Described anchor ear adopts PVC bolt to connect.
The advantage that the present invention has and positively effect are:
1) structure is simple, and cost is low.
2) easy construction, to the surface treatment of steel construction without particular requirement, applied widely, be no matter newly-built or existing offshore steel structure, no matter be the intact or damaged steel construction of preservative coat, adopt the present invention all can increase the service life.
3) be convenient to realize on-line monitoring galvanic protection effect.
In sum; the present invention is directed to steel construction splash zone sea water immersion rate low; conventional cathode resist technology cannot carry out the problem of effective corrosion prevention to steel construction splash zone; relatively simple, the convenient and lower-cost conduction coating unit of one is proposed; it is not only applicable to the corrosion prevention of newly-built marine galvanic protection steel construction splash zone, and be applicable to existing galvanic protection facility corrosion after renewal and reparation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the vertical view of Fig. 1.
In figure: 1, absorbent material layer; 2, anchor ear; 3, PVC bolt; 4, all solid state long-acting silver/silver halide reference electrode; 5, steel construction.
Embodiment
For summary of the invention of the present invention, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 1 and Fig. 2, a kind of device for there being galvanic protection steel construction splash zone corrosion to protect, comprises the absorbent material layer 1 be coated on surface, steel construction 5 splash zone, and described absorbent material layer 1 adopts anchor ear 2 to fix, and described anchor ear 2 is provided with engraved structure.
Principle of the present invention:
Steel construction splash zone is because sea water immersion rate is low; cathodic protection current cannot continuously in formation loop, steel construction splash zone; make galvanic protection effective in steel construction splash zone; conducting medium will be introduced by the steel structure surface of artificial method in splash zone; there is this layer of conducting medium; cathodic protection current could in formation loop, steel construction splash zone, and make steel construction obtain corrosionproof protection, the present invention is according to this principle design.
Concrete construction method is as follows: first carry out surface treatment to the steel construction splash zone that will protect; the attaching organism of removing steel structure surface and floating rust; again at steel structure surface voluble wrapping absorbent material layer, the anchor ear with engraved structure is finally adopted to be fixed on protected steel construction splash zone by absorbent material layer.
The present invention is by having the steel construction splash zone Surface coating absorbent material layer (such as: non-woven fabrics etc.) of galvanic protection; make seawater that cathodic protection current is absorbed by non-woven fabrics in formation loop, steel construction splash zone, thus realize the corrosion prevention to splash zone steel construction.Absorbent material layer adopts the anchor ear of band engraved structure to be fixed; seawater can be made to enter absorbent material layer smoothly on the one hand; can prevent the seawater in absorbent material layer from appearing on the other hand, guarantee that seawater is unobstructed, and then ensure that cathodic protection current can in formation loop, steel construction splash zone.
In the present embodiment, the life-time service being adapted in briny environment to enable the present invention, the thickness of described absorbent material layer is 3 ~ 5cm, adopts non-woven fabrics to be formed.Described absorbent material layer can also adopt water sucting rubber etc. to have strong absorptive, mariner growth prevent, material that resistant to sea water is aging.Described anchor ear adopts PTFE material to make, thickness 8 ~ 15mm, tensile strength 10 ~ 30Mpa.Described anchor ear can also adopt other mariner growth prevents, resistant to sea water aging, have the material of certain toughness to make.Described anchor ear adopts PVC bolt 3 to connect, corrosion-resistant, and has certain intensity.
In order to monitor the effect of galvanic protection, described anchor ear 2 is provided with all solid state long-acting silver/silver halide reference electrode 4, for monitoring galvanic protection effect.Detected by indoor, when the splash zone of steel construction 5 arranges said apparatus provided by the invention, distance sacrificial anode 15m, its protection potential can reach-980mV, and distance sacrificial anode 20m, protection potential is-970mV.
Although be described the preferred embodiments of the present invention by reference to the accompanying drawings above; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present invention; do not departing under the ambit that present inventive concept and claim protect, can also make a lot of form, these all belong within protection scope of the present invention.
Claims (5)
1. the device for there being galvanic protection steel construction splash zone corrosion to protect, is characterized in that, comprises the absorbent material layer be coated on surface, steel construction splash zone, and described absorbent material layer adopts anchor ear to fix, and described anchor ear is provided with engraved structure.
2. the device for there being galvanic protection steel construction splash zone corrosion to protect according to claim 1, is characterized in that, described anchor ear is provided with all solid state long-acting silver/silver halide reference electrode.
3. the device for there being galvanic protection steel construction splash zone corrosion to protect according to claim 1, is characterized in that, the thickness of described absorbent material layer is 3 ~ 5cm, adopts non-woven fabrics to be formed.
4. the device for there being galvanic protection steel construction splash zone corrosion to protect according to claim 1, is characterized in that, described anchor ear adopts PTFE material to make, thickness 8 ~ 15mm, tensile strength 10 ~ 30Mpa.
5. the device for there being galvanic protection steel construction splash zone corrosion to protect according to claim 1, is characterized in that, described anchor ear adopts PVC bolt to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410540030.1A CN104264157A (en) | 2014-10-13 | 2014-10-13 | Device for corrosion prevention of steel structure splash zone with cathode protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410540030.1A CN104264157A (en) | 2014-10-13 | 2014-10-13 | Device for corrosion prevention of steel structure splash zone with cathode protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104264157A true CN104264157A (en) | 2015-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410540030.1A Pending CN104264157A (en) | 2014-10-13 | 2014-10-13 | Device for corrosion prevention of steel structure splash zone with cathode protection |
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| CN (1) | CN104264157A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105572026A (en) * | 2016-01-20 | 2016-05-11 | 浙江大学 | Sea splash zone environment experimental simulation system |
| CN110344639A (en) * | 2019-07-11 | 2019-10-18 | 湖北联网电力设计有限公司 | A kind of power transmission line tower bar guard member |
| CN111304660A (en) * | 2020-03-23 | 2020-06-19 | 河海大学 | Cathode protection auxiliary device and dry-wet alternate zone steel structure protection device |
| CN111593354A (en) * | 2020-05-27 | 2020-08-28 | 重庆交通大学 | Bridge cable impressed current cathodic protection method, system and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH0815729A (en) * | 1994-06-24 | 1996-01-19 | Sony Corp | Active matrix substrate and its production |
| CN2559655Y (en) * | 2002-08-23 | 2003-07-09 | 中国科学院海洋研究所 | Shield sleeve for spoondrift splash zone corrosion protection |
| CN103422095A (en) * | 2013-09-06 | 2013-12-04 | 北京安科管道工程科技有限公司 | Method for protecting cathode of metal structure in intertidal zone |
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2014
- 2014-10-13 CN CN201410540030.1A patent/CN104264157A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0815729A (en) * | 1994-06-24 | 1996-01-19 | Sony Corp | Active matrix substrate and its production |
| CN2559655Y (en) * | 2002-08-23 | 2003-07-09 | 中国科学院海洋研究所 | Shield sleeve for spoondrift splash zone corrosion protection |
| CN103422095A (en) * | 2013-09-06 | 2013-12-04 | 北京安科管道工程科技有限公司 | Method for protecting cathode of metal structure in intertidal zone |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105572026A (en) * | 2016-01-20 | 2016-05-11 | 浙江大学 | Sea splash zone environment experimental simulation system |
| CN105572026B (en) * | 2016-01-20 | 2019-03-19 | 浙江大学 | A kind of ocean splash zones environmental test simulation system |
| CN110344639A (en) * | 2019-07-11 | 2019-10-18 | 湖北联网电力设计有限公司 | A kind of power transmission line tower bar guard member |
| CN111304660A (en) * | 2020-03-23 | 2020-06-19 | 河海大学 | Cathode protection auxiliary device and dry-wet alternate zone steel structure protection device |
| CN111304660B (en) * | 2020-03-23 | 2021-04-13 | 河海大学 | Cathode protection auxiliary device and dry-wet alternate zone steel structure protection device |
| CN111593354A (en) * | 2020-05-27 | 2020-08-28 | 重庆交通大学 | Bridge cable impressed current cathodic protection method, system and device |
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Application publication date: 20150107 |