CN212900306U - Pipeline anticorrosion protection device in aluminum yacht - Google Patents
Pipeline anticorrosion protection device in aluminum yacht Download PDFInfo
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- CN212900306U CN212900306U CN202021701879.XU CN202021701879U CN212900306U CN 212900306 U CN212900306 U CN 212900306U CN 202021701879 U CN202021701879 U CN 202021701879U CN 212900306 U CN212900306 U CN 212900306U
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- branch pipe
- combined cap
- corrosion
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Abstract
The utility model relates to a pipeline anticorrosion protection device in an aluminum yacht, wherein a branch pipe is arranged at one side of a header pipe, and the outer end of the branch pipe is provided with an external thread; the periphery of one end of the zinc rod is provided with threads and is connected with the inner threads of the step blind hole of the combined cap; the combined cap is in threaded connection with the outer end of the branch pipe, a lifting lug at the top of the combined cap is connected with one end of the anti-lost chain, and the other end of the anti-lost chain is connected with the lifting lug arranged on the branch pipe. The utility model discloses be convenient for install and change, simple structure, space optimization have solved the serious problem of pipeline corrosion in the aluminium system yacht, have improved the corrosion resisting property and the life of pipeline and valve member annex, reduce the maintenance rate of pipeline, have reduced the degree of safety to pipeline corrosion damage in the aluminium system yacht, play the effect of the protection of driving and protecting navigation for the aluminium system yacht.
Description
Technical Field
The utility model relates to a pipeline anticorrosion technology, in particular to a pipeline anticorrosion protection device for among aluminium system yacht.
Background
At present, pipelines in an aluminum ship are in contact corrosion with aluminum in material selection, and particularly, the corrosion problem of seawater pipelines is serious. Contact corrosion tends to occur if aluminum and other alloys are in permanent contact with dissimilar metal materials. Such as: the battery acts on corrosion, namely, the galvanic corrosion can be generated when the battery contacts with dissimilar metal materials; interstitial corrosion, i.e., contact corrosion that occurs when a non-metallic material is contacted, can occur.
Aluminum is in contact with copper and iron, with the above mentioned risks. However, when an insulating or semiconductor protective film or other compound is formed on the surface of the electrode in contact with the metal, the flow of the corrosion current is stopped, thereby preventing the occurrence of the etching (polarization reaction). Since aluminum and aluminum alloys are hard to corrode when they are in contact with austenitic stainless steel, sufficient measures for preventing corrosion must be taken when they are joined to dissimilar metal materials.
The following factors have a great influence:
in the resistance of the contact portion, the higher the resistance between the metal materials is, the more difficult the corrosion current flows, and therefore, the lower the degree of corrosion. If the product adheres to the metal surface, the resistance increases, and the effect of reducing contact corrosion is exhibited.
The conductivity of the solution is weak in contact corrosion in water with a small content of impurities, and the contact corrosion is remarkably strong in a medium with high conductivity such as seawater, chemicals and the like. However, it is noted that even in water having a relatively small impurity content, the degree of corrosion tends to be high when the areas of the anode and cathode are increased.
Therefore, the electrochemical method of protecting the cathode by the sacrificial anode is adopted to realize and solve the problem of serious corrosion of the pipeline in the aluminum yacht. The above-mentioned techniques have been adopted for the protection of the outer walls of aluminium yachts. However, at present, no anticorrosion protection measures for the inside of the pipeline exist, when the inside of the aluminum pipe is corroded, the pipeline can only be replaced, the workload is large, the operation is complex, and the labor and the time are wasted.
SUMMERY OF THE UTILITY MODEL
To above-mentioned aluminium system pipeline corrosion problem, the utility model provides a solve serious device of pipeline corrosion problem in aluminium system yacht improves the corrosion resisting property of pipeline and valve member annex, increase of service life, reduces the pipeline corrosion damage in aluminium system yacht.
The utility model adopts the following technical scheme to realize the purpose. A pipeline anticorrosion protection device in an aluminum yacht is characterized in that a branch pipe is arranged on one side of a main pipe, and external threads are arranged at the outer end of the branch pipe; a step blind hole is formed in the combined cap, an internal thread is formed in the inner wall of the combined cap, a lifting lug is arranged at the top of the combined cap, and knurls are arranged on the periphery of the combined cap; the periphery of one end of the zinc rod is provided with threads and is connected with the inner threads of the step blind hole of the combined cap; the lug at combination cap top is connected with the one end of preventing losing the chain, and the other end of preventing losing the chain is connected with the lug that is equipped with on the branch pipe.
The utility model discloses be convenient for install and change, simple structure, space optimization have solved the serious problem of pipeline corrosion in the aluminium system yacht, have improved the corrosion resisting property and the life of pipeline and valve member annex, reduce the maintenance rate of pipeline, have reduced the degree of safety to pipeline corrosion damage in the aluminium system yacht, play the effect of the protection of driving and protecting navigation for the aluminium system yacht.
Drawings
Fig. 1 is a schematic sectional view of a partial structure of the present invention.
In the figure: 1. the device comprises a main pipe, 2 branch pipes, 3 zinc bars, 4 combined caps, 5 anti-lost chains and 6 lifting lugs.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings. Referring to fig. 1, in the pipeline anticorrosion protection device in the aluminum yacht, a branch pipe 2 is arranged on one side of a main pipe 1, and an external thread is arranged at the outer end of the branch pipe 2; a step blind hole is formed in the combined cap 4, an internal thread is formed in the inner wall of the combined cap 4, a lifting lug 6 is arranged at the top of the combined cap 4, and knurls are formed in the periphery of the combined cap 4; the periphery of one end of the zinc rod 3 is provided with threads and is connected with the inner threads of the step blind hole of the combined cap 4; the combined cap 4 is in threaded connection with the outer end of the branch pipe 2, a lifting lug 6 at the top of the combined cap 4 is connected with one end of the anti-lost chain 5, and the other end of the anti-lost chain 5 is connected with the lifting lug 6 arranged on the branch pipe 2.
Example (b): the utility model is characterized in that a branch pipe 2 is welded on a header pipe 1 of a pipeline, and the periphery of the top end of the branch pipe 2 is twisted with an external thread; the combination cap 4 is screwed on the external thread of the branch pipe 2. The inside of the combined cap 4 is connected with the zinc rod 3 in a threaded manner; the top of the combined cap 4 is provided with a lifting lug 6, and the outside of the combined cap 4 is provided with anti-skid knurls, so that the combined cap is convenient to disassemble and replace the zinc bar 3; anticorrosion paint is made on the outer part of the combined cap 4, so that the corrosion of the combined cap 4 is reduced; the lug 6 at the top of the combined cap 4 is connected with one end of the anti-lost chain 5, the other end of the anti-lost chain 5 is connected with the lug 6 arranged on the branch pipe 2, and the combined cap 4 can be prevented from falling off in the process of replacing the zinc bar 3.
The utility model discloses a pipeline anticorrosion protection device in an aluminum yacht is arranged on a pipeline in the aluminum yacht, and protects a main pipe 1 pipeline by sacrificing a zinc bar 3; the serious corrosion situation of the main pipe 1 in the aluminum yacht is reduced, the service life of the main pipe 1 in the aluminum yacht is prolonged, and the phenomena that the main pipe 1 is frequently maintained and replaced are avoided.
The zinc rods 3 (sacrificial anodes) are made of a metallic material having a relatively negative potential and when connected to the manifold 1 to be protected, undergo preferential dissociation of themselves, thereby inhibiting corrosion of the manifold 1.
Claims (1)
1. The pipeline anticorrosion protection device in the aluminum yacht is characterized in that a branch pipe is arranged on one side of a main pipe, and external threads are arranged at the outer end of the branch pipe; a step blind hole is formed in the combined cap, an internal thread is formed in the inner wall of the combined cap, a lifting lug is arranged at the top of the combined cap, and knurls are arranged on the periphery of the combined cap; the periphery of one end of the zinc rod is provided with threads and is connected with the inner threads of the step blind hole of the combined cap; the lug at combination cap top is connected with the one end of preventing losing the chain, and the other end of preventing losing the chain is connected with the lug that is equipped with on the branch pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021701879.XU CN212900306U (en) | 2020-08-17 | 2020-08-17 | Pipeline anticorrosion protection device in aluminum yacht |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021701879.XU CN212900306U (en) | 2020-08-17 | 2020-08-17 | Pipeline anticorrosion protection device in aluminum yacht |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212900306U true CN212900306U (en) | 2021-04-06 |
Family
ID=75242583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021701879.XU Active CN212900306U (en) | 2020-08-17 | 2020-08-17 | Pipeline anticorrosion protection device in aluminum yacht |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212900306U (en) |
-
2020
- 2020-08-17 CN CN202021701879.XU patent/CN212900306U/en active Active
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