CN112664740A - Seawater pipeline sacrificial elbow - Google Patents
Seawater pipeline sacrificial elbow Download PDFInfo
- Publication number
- CN112664740A CN112664740A CN202011352022.6A CN202011352022A CN112664740A CN 112664740 A CN112664740 A CN 112664740A CN 202011352022 A CN202011352022 A CN 202011352022A CN 112664740 A CN112664740 A CN 112664740A
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- China
- Prior art keywords
- elbow
- pipeline
- seawater
- sacrificial
- seawater pipeline
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000013535 sea water Substances 0.000 title claims abstract description 62
- 229910000805 Pig iron Inorganic materials 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 8
- 229910052802 copper Inorganic materials 0.000 abstract description 8
- 239000010949 copper Substances 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 description 8
- 238000005260 corrosion Methods 0.000 description 8
- 239000002184 metal Substances 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 7
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 3
- 238000006056 electrooxidation reaction Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000011701 zinc Substances 0.000 description 3
- 229910052725 zinc Inorganic materials 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
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- Prevention Of Electric Corrosion (AREA)
Abstract
The embodiment of the invention provides a sacrificial elbow for a seawater pipeline, which is characterized by comprising the following components: the seawater pipeline sacrificial elbow is arranged in the seawater pipeline, and the two ends of the seawater pipeline sacrificial elbow are connected with the part hinged with the seawater pipeline through flanges. The elbow is sacrificed to sea water pipeline, and the material is pig iron, in current sea water house steward, has replaced the elbow that exists in the original pipeline, and the sea water pipeline adopts the copper pipe usually, compares in copper, and pig iron material's elbow is more lively, can regard as the sacrificial anode in the pipeline to play the effect of protection sea water pipeline, adopt the loose flange joint easily to change simultaneously.
Description
Technical Field
The invention belongs to the technical field of ship seawater systems, particularly belongs to a device for preventing pipelines from being corroded on ship seawater pipelines, and relates to a seawater pipeline sacrificial elbow.
Background
The marine seawater system plays an important role in ensuring the normal operation and safety of main equipment of the ship, and the pipes used by the marine seawater system are mostly metal pipes. The medium that sea water system carried is sea water, and sea water is the medium of strong corrosivity, causes sea water system to face serious corrosion problem, once break down, will seriously influence the normal operation of equipment and the safe navigation of boats and ships.
Electrochemical corrosion is the most common corrosion type of seawater pipeline, and in a seawater medium, dissimilar metals are in contact with a potential difference in seawater to form a galvanic couple (cathode and anode) to cause electrochemical corrosion.
According to the principle of electrochemical corrosion, a metal which is more active than the metal is usually connected to the protected metal, the active metal is corroded as an electrochemical anode, and the protected metal is protected as a cathode. According to the principle, the corrosion-resistant zinc block is additionally arranged in the current general means, the corrosion-resistant effect is good, the service life can reach about 3 years, but the field replacement is difficult during repair, for example, the corrosion-resistant zinc block of a seawater pipeline is additionally arranged in a sea valve box, and the disassembly and the assembly are difficult.
Disclosure of Invention
The invention aims to provide a sacrificial elbow for a seawater pipeline, which is characterized by comprising: the seawater pipeline sacrificial elbow is arranged in the seawater pipeline, and the two ends of the seawater pipeline sacrificial elbow are connected with the part hinged with the seawater pipeline through flanges.
Preferably, the sacrificial elbow material of the seawater pipeline is pig iron.
Preferably, the flange is a loose flange.
The invention discloses a sacrificial elbow of a seawater pipeline, which is made of pig iron, replaces the elbow in the original pipeline in the existing seawater main pipe, adopts a copper pipe as the seawater pipeline, is more active than copper, can be used as a sacrificial anode in the pipeline, thereby playing a role in protecting the seawater pipeline, and is easy to replace by adopting loose flange connection. The general replacement cycle is a month, the adjustment of the replacement cycle can be carried out according to the difference of sea areas, if the elbow has seawater leakage, the valves on the two sides of the elbow can be closed, and the elbow can be replaced by detaching the flange of the elbow, so that the operation is simple, and the guarantee is convenient and effective.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of the present invention patent;
fig. 2 is a cross-sectional view of the present invention patent.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below. Aiming at the arrangement of the existing seawater main pipe, the seawater pipeline is mainly provided with an anticorrosive zinc block, and the protection means of the internal seawater pipeline is lost.
The invention discloses a sacrificial elbow for a seawater pipeline, which is mainly characterized in that an elbow corresponding to the pipeline is made of pig iron, a loose flange is adopted to be matched with an original pipeline through the loose flange, the sacrificial elbow is convenient to assemble and disassemble, and the sacrificial elbow is convenient to replace regularly by recording the service cycle.
The invention discloses a sacrificial elbow for a seawater pipeline, which replaces an elbow existing in an original pipeline in the existing seawater main pipe, and the seawater pipeline is usually made of a copper pipe, is more active than copper and an elbow made of pig iron material, can be used as a sacrificial anode in the pipeline, thereby playing a role in protecting the seawater pipeline, and is easy to replace by adopting loose flange connection.
As shown in fig. 1 and 2, the sacrificial elbow of the seawater pipeline aims at preventing corrosion of the seawater pipeline in the cabin. The invention can greatly reduce the workload of daily maintenance of the seawater pipeline by configuring the sacrificial elbow under the condition of not influencing the daily use of the seawater pipeline, and is beneficial to a sailor to master the corrosion rule of the seawater pipeline by a daily combing corrosion period.
The invention discloses a sacrificial elbow of a seawater pipeline, which is made of pig iron, replaces the elbow in the original pipeline in the existing seawater main pipe, adopts a copper pipe as the seawater pipeline, is more active than copper, can be used as a sacrificial anode in the pipeline, thereby playing a role in protecting the seawater pipeline, and is easy to replace by adopting loose flange connection. The general replacement cycle is a month, the adjustment of the replacement cycle can be carried out according to the difference of sea areas, if the elbow has seawater leakage, the valves on the two sides of the elbow can be closed, and the elbow can be replaced by detaching the flange of the elbow, so that the operation is simple, and the guarantee is convenient and effective.
It will be apparent to those skilled in the art that various changes and modifications may be made in the invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (4)
1. A sacrificial elbow for a seawater pipeline, comprising: the seawater pipeline sacrificial elbow is arranged in the seawater pipeline, and the two ends of the seawater pipeline sacrificial elbow are connected with the part hinged with the seawater pipeline through flanges.
2. The seawater pipeline sacrificial elbow as defined in claim 1, wherein the seawater pipeline sacrificial elbow material is pig iron.
3. The seawater pipeline sacrificial elbow as defined in claim 2, wherein the pig iron acts as a sacrificial anode in the seawater pipeline.
4. The sacrificial elbow of claim 1, wherein the flange is a loose flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011352022.6A CN112664740A (en) | 2020-11-27 | 2020-11-27 | Seawater pipeline sacrificial elbow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011352022.6A CN112664740A (en) | 2020-11-27 | 2020-11-27 | Seawater pipeline sacrificial elbow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112664740A true CN112664740A (en) | 2021-04-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011352022.6A Pending CN112664740A (en) | 2020-11-27 | 2020-11-27 | Seawater pipeline sacrificial elbow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112664740A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56101484A (en) * | 1980-01-16 | 1981-08-14 | Kubota Ltd | Oil loading pipe |
| CN101100752A (en) * | 2007-07-18 | 2008-01-09 | 中国船舶重工集团公司第七二五研究所 | Integration corrosion-proof method for copper seawater pipe line |
| CN205190984U (en) * | 2015-11-25 | 2016-04-27 | 中国舰船研究设计中心 | Sleeve pipe is sacrificed to marine sea water system anticorrosion cast iron |
| CN106222567A (en) * | 2016-10-24 | 2016-12-14 | 青岛双瑞海洋环境工程股份有限公司 | Electrolysis copper-iron alloy composite anode materials, electrode assemblie and electrolysis unit |
| CN205821458U (en) * | 2016-07-26 | 2016-12-21 | 尹建平 | A kind of sacrificial anode for naval vessel seawaterline |
-
2020
- 2020-11-27 CN CN202011352022.6A patent/CN112664740A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56101484A (en) * | 1980-01-16 | 1981-08-14 | Kubota Ltd | Oil loading pipe |
| CN101100752A (en) * | 2007-07-18 | 2008-01-09 | 中国船舶重工集团公司第七二五研究所 | Integration corrosion-proof method for copper seawater pipe line |
| CN205190984U (en) * | 2015-11-25 | 2016-04-27 | 中国舰船研究设计中心 | Sleeve pipe is sacrificed to marine sea water system anticorrosion cast iron |
| CN205821458U (en) * | 2016-07-26 | 2016-12-21 | 尹建平 | A kind of sacrificial anode for naval vessel seawaterline |
| CN106222567A (en) * | 2016-10-24 | 2016-12-14 | 青岛双瑞海洋环境工程股份有限公司 | Electrolysis copper-iron alloy composite anode materials, electrode assemblie and electrolysis unit |
Non-Patent Citations (3)
| Title |
|---|
| 周凤云等: "《工程材料及应用第2版》", 30 November 2002, 华中科技大学出版社 * |
| 陈永等: "《不可不知的材料知识》", 31 January 2020, 机械工业出版社 * |
| 韩冰等: "《钢铁材料腐蚀与控制技术》", 31 August 2006, 中国海洋大学出版社 * |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210416 |
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| RJ01 | Rejection of invention patent application after publication |