CN201095649Y - Replaceable pipeline inner annular anode - Google Patents
Replaceable pipeline inner annular anode Download PDFInfo
- Publication number
- CN201095649Y CN201095649Y CNU2007200972687U CN200720097268U CN201095649Y CN 201095649 Y CN201095649 Y CN 201095649Y CN U2007200972687 U CNU2007200972687 U CN U2007200972687U CN 200720097268 U CN200720097268 U CN 200720097268U CN 201095649 Y CN201095649 Y CN 201095649Y
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- anode
- pipes
- sacrificial anode
- sacrificial
- variable diameter
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- Expired - Lifetime
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Abstract
The utility model relates to a changeable type pipe inner ring-shaped anode which is characterized in that the anode mainly comprises an anode jacket and a tubular sacrificial anode, both ends of the anode jacket are provided with variable diameter connectors, a small head end with the variable diameter is connected with a flange, the tubular sacrificial anode is arranged on the same axial line inside the anode jacket, two electrical steel bands are pre-cast on the inner wall of the sacrificial anode and are fixedly connected with the variable diameter connectors. The anode has the advantages that the anode is compact and light-weighted; media flow inside the pipes is not affected, the mounting is simple and rapid, no fire or welding is required; flanges at both sides are connected to the pipes required to be protected, thereby materials is saved, and no machinery equipment is required in construction; the service lives of the pipes are effectively prolonged and the safe and normal operation of the pipes is ensured. An anodic protection technology is adopted to realize the corrosion prevention of the inner wall of metal pipes.
Description
Technical field
The utility model belongs to the anticorrosion device of using of metallic conduit, relates in particular to a kind of circular anode in the metal pipe internal wall corrosive changeable type pipeline that is applied to prevent.
Background technology
All kinds of metallic conduits in the industrial circle, carrying various dissimilar media, medium has corrosion composition greatly, make inner-walls of duct heavy corrosion even perforation, thereby reduced the use properties of hardware, shortened working life, increased the maintenance cost expenditure, cause enterprise's stop work and production, environmental pollution and security incident, bring great financial loss to enterprise.Cathode protection technology is a kind of of electro-chemical protection technology; its principle is to apply an impressed current to the metal structure surface that is corroded; protected works becomes negative electrode, thereby the electronic migration that makes metallic corrosion take place is controlled, avoids or weaken corrosive taking place.Cathode protection technology has two kinds: galvanic anode protection and impressed current galvanic protection.The galvanic anode protection technology is to be electrically connected with a kind of current potential metal or alloy and the protected metal also more negative than claimed metal, relies on the relatively more negative metal electric current that constantly corrosion dissolution produced of current potential to protect other metals.The problem that exists: principle of cathodic protection is that negative charge is provided by supplementary anode and soil loop by potentiostat or sacrificial anode at a certain amount of negative charge of protected metal structures surface accumulation.Because " surface action " of electric charge, negative charge just concentrates on the surface in protected metal structures and supplementary anode and soil loop, so the galvanic protection protection is the surface of metal structures.So galvanic protection can only protective money metal conduit outer wall; be not corroded and can't penetrate tube wall protective money metal conduit inwall; metallic conduit is being carried various dissimilar media; medium has corrosion composition greatly; make inner-walls of duct heavy corrosion even perforation; cause enterprise's stop work and production, environmental pollution and security incident, bring great financial loss to enterprise.Need to be resolved hurrily at present and utilize cathode protection technology to realize the difficult problem of metal pipe internal wall corrosion prevention.
Summary of the invention
The purpose of this utility model is to overcome the deficiency of above-mentioned technology; and provide a kind of volume little, in light weight, do not influence circular anode in pipe-line transportation rate-of flow and the easy-to-install changeable type pipeline, it utilizes cathode protection technology to realize the metal pipe internal wall corrosion prevention.
The utility model for achieving the above object, by the following technical solutions: circular anode in a kind of changeable type pipeline, it is characterized in that: mainly form by anode sheath and tubulose sacrificial anode, described anode sheath two ends are welded with the reducing connecting joint, the little head end of reducing connecting joint is connected with flange, described tubulose sacrificial anode places in the anode sheath on the same axis, is shaped on two electric steel bands of connection in the sacrificial anode sidewall in advance and fixedlys connected with the reducing connecting joint.
Described sacrificial anode internal diameter is identical with protected metal tube internal diameter.
The beneficial effects of the utility model: this anode volume is little, in light weight, does not influence the pipeline internal medium flow, simple installation; speed soon, do not get angry, motionless weldering, both sides be connected on the pipeline that will protect with flange; economical with materials does not need the mechanical means coordinative construction.Effectively prolonged pipeline work-ing life, guaranteed that pipe safety normally moves.It utilizes cathode protection technology to realize the metal pipe internal wall corrosion prevention.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
Embodiment
Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing and preferred embodiment.
As shown in the figure, circular anode in a kind of changeable type pipeline, mainly form by anode sheath 1 and tubulose sacrificial anode 4, described anode sheath two ends are welded with reducing connecting joint 2, the little head end of reducing connecting joint is connected with flange 3, described tubulose sacrificial anode places in the anode sheath on the same axis, is shaped on two electric steel bands 5 of connection in the sacrificial anode sidewall in advance and fixedlys connected with the reducing connecting joint.Described sacrificial anode internal diameter is identical with protected metal tube internal diameter.Reducing head microcephaly and protected pipe diameter equate.The length of anode sheath and tubulose sacrificial anode, diameter, anodic thickness are with protected pipe diameter, protected pipeline distance direct relation to be arranged.Decide with design requirements according to actual needs., only need during replacing to unload screw to design period as anode, change the interior circular anode of a changeable type pipeline again and get final product from flange.The internal diameter of described tubulose sacrificial anode is interior identical with protected pipeline.Described tubulose sacrificial anode is high temperature resistant, the sacrificial aluminium alloy anode of anti-the smeary, and by in two electric steel bands of connection of ready-formed in the sacrificial anode sidewall and the welding of both sides reducing connecting joint major part.The galvanic anode protection technology is to be electrically connected with a kind of current potential metal or alloy and the protected metal also more negative than claimed metal, relies on the relatively more negative metal electric current that constantly corrosion dissolution produced of current potential to protect other metals.During use, circular anode in the changeable type pipeline is mounted on the protected pipeline (during sacrificial anode work, along with constantly flowing of electric current, sacrificial anode material constantly consumes, thereby the pipeline that needs protection is effectively protected) by flange
The above only is preferred embodiment of the present utility model, is not structure of the present utility model is done any pro forma restriction.Every foundation technical spirit of the present utility model all still belongs in the scope of the technical solution of the utility model any simple modification, equivalent variations and modification that above embodiment did.
Claims (2)
1, circular anode in a kind of changeable type pipeline, it is characterized in that: mainly form by anode sheath and tubulose sacrificial anode, described anode sheath two ends are welded with the reducing connecting joint, the little head end of reducing connecting joint is connected with flange, described tubulose sacrificial anode places in the anode sheath on the same axis, is shaped on two electric steel bands of connection in the sacrificial anode sidewall in advance and fixedlys connected with the reducing connecting joint.
2, circular anode in the changeable type pipeline according to claim 1, it is characterized in that: described sacrificial anode internal diameter is identical with protected metal tube internal diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200972687U CN201095649Y (en) | 2007-08-28 | 2007-08-28 | Replaceable pipeline inner annular anode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200972687U CN201095649Y (en) | 2007-08-28 | 2007-08-28 | Replaceable pipeline inner annular anode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201095649Y true CN201095649Y (en) | 2008-08-06 |
Family
ID=39922705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200972687U Expired - Lifetime CN201095649Y (en) | 2007-08-28 | 2007-08-28 | Replaceable pipeline inner annular anode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201095649Y (en) |
Cited By (4)
| 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 |
| CN104651852A (en) * | 2015-01-29 | 2015-05-27 | 沪东中华造船(集团)有限公司 | Seawater pipeline sacrificial anode protector and mounting method thereof |
| CN105135153A (en) * | 2015-09-28 | 2015-12-09 | 东北大学 | Method for inhibiting corrosion on inner wall of metal conveying pipeline |
| CN115264218A (en) * | 2022-09-30 | 2022-11-01 | 苏州律动游乐设备有限公司 | Lining corrosion-resistant alloy elbow and manufacturing method thereof |
-
2007
- 2007-08-28 CN CNU2007200972687U patent/CN201095649Y/en not_active Expired - Lifetime
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 |
| CN102191504B (en) * | 2011-04-18 | 2013-03-27 | 北京市燃气集团有限责任公司 | Replaceable anodic pool |
| CN104651852A (en) * | 2015-01-29 | 2015-05-27 | 沪东中华造船(集团)有限公司 | Seawater pipeline sacrificial anode protector and mounting method thereof |
| CN105135153A (en) * | 2015-09-28 | 2015-12-09 | 东北大学 | Method for inhibiting corrosion on inner wall of metal conveying pipeline |
| CN105135153B (en) * | 2015-09-28 | 2018-01-02 | 东北大学 | Suppress the method for metal delivery tubes road inner wall corrosion |
| CN115264218A (en) * | 2022-09-30 | 2022-11-01 | 苏州律动游乐设备有限公司 | Lining corrosion-resistant alloy elbow and manufacturing method thereof |
| CN115264218B (en) * | 2022-09-30 | 2022-12-16 | 苏州律动游乐设备有限公司 | Lining corrosion-resistant alloy elbow and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080806 |
|
| CX01 | Expiry of patent term |