CN201148467Y - Combined anode and cathode protection apparatus - Google Patents
Combined anode and cathode protection apparatus Download PDFInfo
- Publication number
- CN201148467Y CN201148467Y CNU2008200314047U CN200820031404U CN201148467Y CN 201148467 Y CN201148467 Y CN 201148467Y CN U2008200314047 U CNU2008200314047 U CN U2008200314047U CN 200820031404 U CN200820031404 U CN 200820031404U CN 201148467 Y CN201148467 Y CN 201148467Y
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- magnesium
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- protection
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Abstract
The utility model provides a composite anode and cathode protection device, which consists of a odometer concrete testing post, a permanent reference electrode embedded at one side of a protective pipeline, a magnesium anode block combination, and a magnesium ribbon anode combination. The permanent reference electrode, the magnesium anode block combination, and the magnesium ribbon anode combination are respectively extended outside the ground by a cable wire, and fixedly arranged inside the odometer concrete testing post by a copper plate. A cathode cable wire together welded with the protective pipeline is connected inside the odometer concrete testing post by the copper plate. The device changes the area ratio of the anode and the cathode, and provides larger current and solves the deficiency of short protection distance of the traditional sacrificial anode cathode protection compared with the prior art, which not only realizes the regulation of full cathode protection potential but also thoroughly solves the phenomenon of over protection and under protection existed in the traditional sacrificial anode cathode protection as the magnesium ribbon anode combination can be operated by batch and phase, and has the advantages that the structure is simple, the operation is easy., the manufacturing cost is low, the usage is convenient, the service life is long, and the range of practicability is wide.
Description
Technical field
The utility model relates to a kind of cathodic protector, especially is applicable to the built-up type anode cathodic protector of buried steel gas pipeline galvanic protection.
Background technology
In recent years, China's city gas is along with the construction of the defeated engineering of transfering natural gas from the west to the east and river gas east, and steel gas pipeline consumption on the city gas transmission and distribution network increases sharply.For the steel gas pipeline gas transmission safety that guarantees buried-pipe laying with prolong working life; the technology implementation duplicate protection that the protection against corrosion design adopts outer wall coating and sacrificial anode protection galvanic protection to combine usually causes pipeline damage and the gas leaking accident takes place to prevent the steel gas Corrosion of Pipeline.Traditional sacrificial anode is to adopt ingot shape magnesium alloy anode, and they are at intervals disperseed to bury ground.In this case, pipeline protection potential everywhere distributes uneven often promptly minimum at the most close anodic pipeline position current potential, and along with away from anode, the protection potential of pipeline is progressively raising.Along with the exploitation of the anticorrosion new technology of China's town gas pipe and the use of novel material; especially 3 layers of PE preservative coat is extensive use of; the technology drawback of traditional sacrificial anode protection is highlighted in engineering practice day by day; evenly install as ingot shape magnesium anode; anode directly is welded on the negative electrode; like this, traditional sacrificial anode protection is implemented galvanic protection except can not detecting spontaneous potential and electric current to pipeline, the more important thing is to have serious overprotection problem.Over current protection will directly cause the liberation of hydrogen of protected pipeline, cause the hydrogen embrittlement of pipeline.In a single day liberation of hydrogen takes place in buried steel pipeline, will make the pipeline anticorrosion coating bubbling, peels off.More fearful is owing to overprotection causes pipe material rotten, causes the very big hidden danger of pipe safety.
Summary of the invention
The purpose of this utility model is the deficiency that overcomes in the prior art, provides a kind of simple in structure, avoids the pipeline overprotection, and result of use is good, the life-span is long, can regulate the built-up type anode cathodic protector of control.
Built-up type anode cathodic protector of the present utility model; it is by mileage concrete detective pole; the permanent reference electrode, magnesium anode piece group and the magnesium ribbon anode group that are embedded in protected pipeline one side are formed; permanent reference electrode, magnesium anode piece group and magnesium ribbon anode group are connected by cable respectively draws ground; concentrate and be fixed in the mileage concrete detective pole, be connected with and protected pipeline welding cathodic electricity cable together by copper sheet in the mileage concrete detective pole with copper sheet.
Described magnesium anode piece group by having on the tube wall if the plastic casing of through hole, be located in the plastic casing removable magnesium anode piece and be wrapped in the outer cotton of plastic casing and constitute; Described magnesium ribbon anode group is by the plastic casing that has some through holes on the tube wall, is located at many removable magnesium ribbon anodes in the plastic casing, the plastic stent that will many magnesium ribbon anodes be provided with at interval and is wrapped in the outer cotton formation of plastic casing; The length of described magnesium ribbon anode group is 4～8m; Described many magnesium ribbon anodes are 20～26; Some through-hole diameters of offering on the tube wall of described plastic casing are 10～14mm; The every interval 1m of described plastic stent is provided with one.
Beneficial effect: replaceable magnesium ribbon anode has changed the area ratio of anode and negative electrode; provide bigger electric current than traditional sacrificial anode protection galvanic protection; increased the length of galvanic protection pipeline with the anode of weight; solved traditional sacrificial anode protection galvanic protection apart from short drawback; can realize that not only cathodic protection potential can be regulated completely; and the magnesium ribbon anode group can be in batches, put into operation by stages, thereby thoroughly solved overprotection and the phenomenon under proteciton that traditional sacrificial anode protection galvanic protection exists.It is simple in structure, easily construction, and cost is low, and is easy to use, the life-span is long, has practicality widely.
Description of drawings
Accompanying drawing is a built-up type anode cathodic protector structure iron of the present utility model.
Among the figure: 1-mileage concrete detective pole, 2-cathodic electricity cable, the permanent reference electrode cable of 3-, the permanent reference electrode of 4-, 5-magnesium anode piece group, 6-magnesium anode piece cable, 7-magnesium ribbon anode group, the 8-plastic casing, the 9-through hole, 10-plastic stent, 11-magnesium ribbon anode, 12-magnesium ribbon anode cable, the 13-pipeline.
Embodiment
The utility model will be further described below in conjunction with the embodiment in the accompanying drawing:
Shown in the accompanying drawing; built-up type anode cathodic protector is by mileage concrete detective pole 1; permanent reference electrode 4; magnesium anode piece group 5 and magnesium ribbon anode group 7 are formed; permanent reference electrode 4, magnesium anode piece group 5 and magnesium ribbon anode group 7 are embedded in a side of protected pipeline 13, and magnesium anode piece group 5 comprises the plastic casing that has some through holes on the tube wall, and a removable magnesium anode piece is housed in the plastic casing; be filled with between magnesium anode piece and the sleeve pipe and fill out construction materials contract, twine with cotton the plastic casing outside.The length of magnesium ribbon anode group 7 is 4～8m, it comprises plastic casing 8, be provided with 20～26 removable magnesium ribbon anodes 11 in the plastic casing 8, magnesium ribbon anode 11 is spaced by plastic stent 10 and is combined as an integral body, twine with cotton the plastic casing outside, is equipped with by wilkinite, terra alba and sal epsom synthetic in magnesium ribbon anode 11 gaps of permutation and combination and fills out construction materials contract.Having diameter on the tube wall of plastic casing 8 is 10～14mm through hole 9; Plastic stent 10 every interval 1m are provided with one.Permanent reference electrode 4 is by permanent reference electrode cable 3; magnesium anode piece group 5 is by magnesium anode piece cable 6; magnesium ribbon anode group 7 connects by magnesium ribbon anode cable 12 draws ground; concentrate fixedly to be located in the mileage concrete detective pole 1, be connected with the cathodic electricity cable 2 that welds together with protected pipeline 13 by copper sheet in the mileage concrete detective pole 1 with copper sheet.
Claims (7)
1. built-up type anode cathodic protector; it is characterized in that: it is by mileage concrete detective pole (1); the permanent reference electrode (4), magnesium anode piece group (5) and the magnesium ribbon anode group (7) that are embedded in protected pipeline (13) one sides are formed; permanent reference electrode (4), magnesium anode piece group (5) and magnesium ribbon anode group (7) are connected by cable respectively draws ground; concentrate and be fixed in the mileage concrete detective pole (1), be connected with the cathodic electricity cable (2) that welds together with protected pipeline (13) by copper sheet in the mileage concrete detective pole (1) with copper sheet.
2. built-up type anode cathodic protector according to claim 1 is characterized in that: described magnesium anode piece group (5) by having on the tube wall if the plastic casing of through hole, be located in the plastic casing removable magnesium anode piece and be wrapped in the outer cotton of plastic casing and constitute.
3. built-up type anode cathodic protector according to claim 1; it is characterized in that: described magnesium ribbon anode group (7) is located at the interior many removable magnesium ribbon anodes (11) of plastic casing (8), the plastic stent (10) of many magnesium ribbon anodes (11) interval setting and the cotton that is wrapped in outside the plastic casing (8) is constituted by the plastic casing that has some through holes (9) on the tube wall (8).
4. according to claim 1 or 3 described built-up type anode cathodic protectors, it is characterized in that: the length of described magnesium ribbon anode group (7) is 4～8m.
5. built-up type anode cathodic protector according to claim 3 is characterized in that: described many replaceable magnesium ribbon anodes (11) are 20～26.
6. built-up type anode cathodic protector according to claim 3 is characterized in that: some through holes (9) diameter of offering on the tube wall of described plastic casing (8) is 10～14mm.
7. built-up type anode cathodic protector according to claim 3 is characterized in that: the every interval 1m of described plastic stent (10) is provided with one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200314047U CN201148467Y (en) | 2008-01-21 | 2008-01-21 | Combined anode and cathode protection apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200314047U CN201148467Y (en) | 2008-01-21 | 2008-01-21 | Combined anode and cathode protection apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201148467Y true CN201148467Y (en) | 2008-11-12 |
Family
ID=40116234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200314047U Expired - Fee Related CN201148467Y (en) | 2008-01-21 | 2008-01-21 | Combined anode and cathode protection apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201148467Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102191504A (en) * | 2011-04-18 | 2011-09-21 | 北京市燃气集团有限责任公司 | Replaceable anodic pool |
| CN102234807A (en) * | 2010-04-22 | 2011-11-09 | 上海工程技术大学 | Intelligent adjustable sacrificial anode and cathode protection device |
| CN103075607A (en) * | 2011-10-25 | 2013-05-01 | 北京安科管道工程科技有限公司 | Pipeline component and method for protecting cathode of same |
| CN103205933A (en) * | 2013-03-25 | 2013-07-17 | 河海大学 | Stay cable body utilizing impressed current cathodic protection |
| 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 |
| CN109778198A (en) * | 2019-02-22 | 2019-05-21 | 华润燃气（郑州）市政设计研究院有限公司 | Band-Type Magnesium Anode anticorrosion mounting structure and extent of corrosion detection method in casing |
| CN111270245A (en) * | 2020-03-23 | 2020-06-12 | 太原理工大学 | Cathodic protection and corrosion prevention system and method for PHC tubular pile bottom end plate |
-
2008
- 2008-01-21 CN CNU2008200314047U patent/CN201148467Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102234807A (en) * | 2010-04-22 | 2011-11-09 | 上海工程技术大学 | Intelligent adjustable sacrificial anode and cathode protection device |
| CN102234807B (en) * | 2010-04-22 | 2013-04-10 | 上海工程技术大学 | Intelligent adjustable sacrificial anode and cathode protection device |
| CN102191504A (en) * | 2011-04-18 | 2011-09-21 | 北京市燃气集团有限责任公司 | Replaceable anodic pool |
| CN103075607A (en) * | 2011-10-25 | 2013-05-01 | 北京安科管道工程科技有限公司 | Pipeline component and method for protecting cathode of same |
| CN103205933A (en) * | 2013-03-25 | 2013-07-17 | 河海大学 | Stay cable body utilizing impressed current cathodic protection |
| 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 |
| CN109778198A (en) * | 2019-02-22 | 2019-05-21 | 华润燃气（郑州）市政设计研究院有限公司 | Band-Type Magnesium Anode anticorrosion mounting structure and extent of corrosion detection method in casing |
| CN109778198B (en) * | 2019-02-22 | 2023-12-22 | 华润燃气（郑州）市政设计研究院有限公司 | Strip magnesium anode anti-corrosion mounting structure in sleeve and corrosion degree detection method |
| CN111270245A (en) * | 2020-03-23 | 2020-06-12 | 太原理工大学 | Cathodic protection and corrosion prevention system and method for PHC tubular pile bottom end plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081112 Termination date: 20120121 |