CN102758971A - High-potential metal seawater pipeline penetration piece with composite structure - Google Patents
High-potential metal seawater pipeline penetration piece with composite structure Download PDFInfo
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- CN102758971A CN102758971A CN2012102120916A CN201210212091A CN102758971A CN 102758971 A CN102758971 A CN 102758971A CN 2012102120916 A CN2012102120916 A CN 2012102120916A CN 201210212091 A CN201210212091 A CN 201210212091A CN 102758971 A CN102758971 A CN 102758971A
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Abstract
The invention belongs to the technical field of ship engineering and provides a high-potential metal seawater pipeline penetration piece with a composite structure. The high-potential metal seawater pipeline penetration piece comprises an inner pipe, a flange and a sleeve, wherein the inner pipe and the flange are made of high-potential metal and the sleeve is made of low-potential metal; the inner pipe and the sleeve are concentric pipelines, wherein the inner diameter of the sleeve is larger than the outer diameter of the inner pipe, the sleeve is shorter than the inner pipe, and the sleeve is connected with a low-potential metal ship structure plate; and two ends of the inner pipe are fixedly connected with the concentric flange, and the flange is connected with a high-potential metal pipeline. The high-potential metal seawater pipeline penetration piece is simple in structure and convenient to use, can structurally ensure that a high-conductivity medium can be in simultaneously contact with the high-potential metal and the low-potential metal and thoroughly solves the electrochemical corrosion problem.
Description
Technical field
The invention belongs to field of ship engineering, be specifically related to a kind of high petential metal seawaterline pipe penetration piece of composite structure.
Background technique
Pipe penetration piece is the ship piping system important component part, is to run through watertight compartment, deck, cabin cabinet etc. and can keep each self-packing pipe fitting.Pipe penetration piece generally is made up of interior pipe, junction surface etc.; Interior pipe links to each other with hull pipeline junction surface through junction surface on the one hand; Directly or indirectly link to each other with Ship Structures such as bulkheads on the other hand, junction surface can adopt forms such as flange, screw thread, and interior pipe, junction surface will guarantee that system media can not leak.Pipe penetration piece commonly used has band copper bush pipe penetration piece (CB 539-67), steel pipe penetration piece (CB/T 3480-92) etc., and the former adopts copper interior pipe, the latter to adopt pipe in the steel.
When high conductivity MEDIA FLOW such as seawater during through contacted dissimilar metal, can constitute the macroetching battery, cause low potential metal corrosion aggravation, this corrosion is referred to as electrochemical corrosion.Because its corrosion rate is far longer than this corrosion rate in seawater of metal, must strictly take precautions against.With steel copper is example, the plain carbon steel electrode potential is-0.6 ~-0.72V, the silicon brass electrode potential is-0.3 ~-0.4V, seawater in a single day flow through contacted steel, copper material, steel will corrode rapidly.
In order to improve piping working life, high petential metal tubes such as copper tube, brass tube, White Copper Tubes in pipings such as boats and ships sea water service system, hydraulic system, have been used in a large number.When these pipelines pass hull structure if select for use CB/T 3480-92 etc. to have the pipe penetration piece of managing steel in; Seawater certainly will contact steel and high petential metal simultaneously; Through the loop that flange bolt etc. is located to form, can form the macroetching battery in addition, cause pipe corrosion in the pipe penetration piece steel.If select for use CB 539-67 etc. have copper in the pipe penetration piece of pipe because steel contacts with high petential metal itself, flange seal place seawater contacts steel and high petential metal simultaneously in addition, can form the macroetching battery, causes pipe penetration piece steel partial corrosion.
For this reason, need a kind of like this pipe penetration piece: let the high petential metal tubes run through steel hull structure and can keep each selfsealing, can not cause pipe penetration piece itself to corrode again.
Summary of the invention
The object of the invention is exactly in order to overcome the deficiency of above-mentioned existing technology; In high conductivity medium pipings such as seawater; The electrochemical corrosion problem that high petential metal tubes such as copper pipe exist when passing low potential metal hull structures such as steel; And a kind of high petential metal seawaterline pipe penetration piece of composite structure is provided; It is simple in structure, easy to use, can guarantee that the high conductivity medium can not contact with high petential metal, low potential metal simultaneously, has thoroughly avoided the electrochemical corrosion problem from structure.
The objective of the invention is to realize: a kind of high petential metal seawaterline pipe penetration piece of composite structure through following technical measures; Be used to connect high petential metal seawaterline and low potential metal hull structure; Comprise interior pipe, flange and sleeve pipe; Pipe and flange adopt the high petential metal in said, and sleeve pipe adopts low potential metal; Pipe and sleeve pipe are concentric pipeline in said, and casing inner diameter is slightly larger than interior external diameter of pipe, and length is less than interior pipe, and sleeve pipe links to each other with low potential metal hull structure plate; Pipe is connected with concentric flange at the place, two ends in said, and flange links to each other with high petential metal seawaterline.
In technique scheme, said in pipe adopt welding manner to be connected with sleeve pipe, manage two ends flange that can be connected in its position that is connected guarantees.
In technique scheme, when said interior pipe guaranteed that with the position that is connected of flange pipe penetration piece links to each other with high petential metal seawaterline, pipe penetration piece flanged surface and hull pipeline flange face can cooperatively interact to form effective sealing.
In technique scheme, the high petential metal that said interior pipe and flange adopt is a copper material.
In technique scheme, the low potential metal that said sleeve pipe adopts is steel.
The present invention compared with prior art has the following advantages:
1. the high petential metal seawaterline pipe penetration piece of composite structure among the present invention; Only used low potential metal in the unreachable zone of high conductivity medium; Guaranteed that from structure the high conductivity medium can not contact with high petential metal, low potential metal simultaneously; Thoroughly avoid the electrochemical corrosion problem, solved the electrochemical corrosion problem that exists when high petential metal tubes such as copper pipe pass low potential metal hull structures such as steel.
2. with in modes such as flange surface spraying electric insulation ceramics coatings compare, ingenious design of the present invention adopts cold and hot machining to realize, cost is low, and does not exist the impaired back of coating effect to weaken problem.
3. when the present invention adopts concavo-convex seal form, don't bother about the road applicable to the above pressure level of 1.6MPa.
4. when the present invention links to each other with hull structure, can not pass through bulkhead flange or seat board, directly be welded on the hull structure, to reduce hull structure perforate and corresponding reinforcement requirement.
Description of drawings
Fig. 1 is the structural representation of the high petential metal seawaterline pipe penetration piece of composite structure of the present invention.
Wherein: 1. pipe in, 2. flange, 3. sleeve pipe, 4. hull.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is done further description.
As shown in Figure 1, present embodiment provides a kind of high petential metal seawaterline pipe penetration piece of composite structure, is made up of interior pipe 1, flange 2, sleeve pipe 3.Interior pipe 1 adopts copper materials with flange 2, and sleeve pipe 3 adopts steel.Interior pipe 1 is concentric pipeline with sleeve pipe 3, pipe 1 external diameter in sleeve pipe 3 internal diameters are slightly larger than, and length is less than interior pipe 1; Greater than hull 4 structural thicknesses, interior pipe 1 adopts welding manners to be connected with sleeve pipe 3, pipe 1 two ends flange 2 that can be connected in its position that is connected guarantees; Sleeve pipe 3 and hull 4 are through being weldingly connected; Quality for test sleeve 3 and 1 weld seam of interior pipe is drilled with auxiliary hole so that suppress on sleeve pipe 3, suppressed the back with screw etc. with this hole soldering and sealing.In pipe 1 be connected through welding at two ends places and concentric flange 2; Flange 2 can link to each other with copper pipe; When interior pipe 1 guaranteed that with the position that is connected of flange 2 pipe penetration piece links to each other with copper pipe, pipe penetration piece flanged surface and pipeline flange face can cooperatively interact to form effective concavo-convex sealing.
It is respond well with being connected of steel hull that the present invention is applied to the corronil pipe.
The present invention includes but be not limited to above embodiment, every under spirit of the present invention and principle, carry out any is equal to replacement or local improvement, as when being used for any kind high conductivity medium, all will be regarded as within protection scope of the present invention.
Claims (5)
1. the high petential metal seawaterline pipe penetration piece of a composite structure comprises interior pipe, flange and sleeve pipe, it is characterized in that: pipe and flange adopt the high petential metal in said, and sleeve pipe adopts low potential metal; Pipe and sleeve pipe are concentric pipeline in said, and casing inner diameter is slightly larger than interior external diameter of pipe, and length is less than interior pipe, and sleeve pipe links to each other with low potential metal hull structure plate; Pipe is connected with concentric flange at the place, two ends in said, and flange links to each other with high petential metal seawaterline.
2. the high petential metal seawaterline pipe penetration piece of composite structure according to claim 1 is characterized in that: pipe adopts welding manner to be connected with sleeve pipe in said, manages two ends flange that can be connected in its position that is connected guarantees.
3. the high petential metal seawaterline pipe penetration piece of composite structure according to claim 1; It is characterized in that: when pipe guaranteed that with the position that is connected of flange pipe penetration piece links to each other with high petential metal seawaterline in said, pipe penetration piece flanged surface and hull pipeline flange face can cooperatively interact to form effective sealing.
4. the high petential metal seawaterline pipe penetration piece of composite structure according to claim 1 is characterized in that: pipe is a copper material with the high petential metal of flange employing in said.
5. the high petential metal seawaterline pipe penetration piece of composite structure according to claim 1 is characterized in that: the low potential metal that said sleeve pipe adopts is steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102120916A CN102758971A (en) | 2012-06-26 | 2012-06-26 | High-potential metal seawater pipeline penetration piece with composite structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102120916A CN102758971A (en) | 2012-06-26 | 2012-06-26 | High-potential metal seawater pipeline penetration piece with composite structure |
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| CN102758971A true CN102758971A (en) | 2012-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012102120916A Pending CN102758971A (en) | 2012-06-26 | 2012-06-26 | High-potential metal seawater pipeline penetration piece with composite structure |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103185176A (en) * | 2013-03-25 | 2013-07-03 | 中国船舶重工集团公司第七一九研究所 | High-potential metallic seawater pipeline welding seat plate with composite structure |
| CN104180071A (en) * | 2014-08-28 | 2014-12-03 | 广东江龙船舶制造有限公司 | Marine bedplate with zinc blocks |
| CN109572926A (en) * | 2018-09-30 | 2019-04-05 | 沪东中华造船(集团)有限公司 | A kind of logical cabin method of Copper-nickel alloy tube |
| CN110553100A (en) * | 2019-01-03 | 2019-12-10 | 辽宁省水利水电勘测设计研究院有限责任公司（原名称为辽宁省水利水电勘测设计研究院） | Waterproof wall bushing |
| CN110939792A (en) * | 2019-12-08 | 2020-03-31 | 中船西江造船有限公司 | Dissimilar metal through-warehouse pipe fitting and using method thereof |
| CN112984224A (en) * | 2021-03-17 | 2021-06-18 | 中国船舶工业集团公司第七0八研究所 | Sleeve pipe and watertight cabin penetrating structure for ship seawater pipe oil cabin |
Citations (10)
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|---|---|---|---|---|
| DE2600011A1 (en) * | 1975-01-07 | 1976-07-15 | Oldham Seals Ltd | HOSE WITH AT LEAST ONE INTEGRATED FLANGE END AND METHOD OF ITS MANUFACTURING |
| US4861077A (en) * | 1988-10-31 | 1989-08-29 | Taper Lock | Trapezoidal seal ring connection |
| US5662361A (en) * | 1996-01-29 | 1997-09-02 | Hodonsky; Joseph W. | Conical wedge connecting joint |
| JPH1059270A (en) * | 1996-08-20 | 1998-03-03 | Mitsubishi Heavy Ind Ltd | Free-disconnective unit pipe with marine protective zinc |
| DE4105206C2 (en) * | 1991-02-20 | 1998-11-05 | Weinhold Karl | Pipe coupling |
| US5845386A (en) * | 1996-08-30 | 1998-12-08 | Taper-Lok Corporation | Method for connecting a multiple-piece elbow assembly |
| CA2331032A1 (en) * | 2000-01-14 | 2001-07-14 | Maxtech Manufacturing Inc. | Exhaust system flanges |
| CN201220738Y (en) * | 2008-06-11 | 2009-04-15 | 上海申馨铜管件有限公司 | Copper-nickel-iron penetration pieces |
| CN101602394A (en) * | 2008-06-11 | 2009-12-16 | 上海申馨铜管件有限公司 | Copper-nickel-iron communication cabin component |
| CN201971128U (en) * | 2011-03-30 | 2011-09-14 | 江苏省镇江船厂有限责任公司 | Deck through-in cabin piece for ship pipeline |
-
2012
- 2012-06-26 CN CN2012102120916A patent/CN102758971A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2600011A1 (en) * | 1975-01-07 | 1976-07-15 | Oldham Seals Ltd | HOSE WITH AT LEAST ONE INTEGRATED FLANGE END AND METHOD OF ITS MANUFACTURING |
| US4861077A (en) * | 1988-10-31 | 1989-08-29 | Taper Lock | Trapezoidal seal ring connection |
| DE4105206C2 (en) * | 1991-02-20 | 1998-11-05 | Weinhold Karl | Pipe coupling |
| US5662361A (en) * | 1996-01-29 | 1997-09-02 | Hodonsky; Joseph W. | Conical wedge connecting joint |
| JPH1059270A (en) * | 1996-08-20 | 1998-03-03 | Mitsubishi Heavy Ind Ltd | Free-disconnective unit pipe with marine protective zinc |
| US5845386A (en) * | 1996-08-30 | 1998-12-08 | Taper-Lok Corporation | Method for connecting a multiple-piece elbow assembly |
| CA2331032A1 (en) * | 2000-01-14 | 2001-07-14 | Maxtech Manufacturing Inc. | Exhaust system flanges |
| CN201220738Y (en) * | 2008-06-11 | 2009-04-15 | 上海申馨铜管件有限公司 | Copper-nickel-iron penetration pieces |
| CN101602394A (en) * | 2008-06-11 | 2009-12-16 | 上海申馨铜管件有限公司 | Copper-nickel-iron communication cabin component |
| CN201971128U (en) * | 2011-03-30 | 2011-09-14 | 江苏省镇江船厂有限责任公司 | Deck through-in cabin piece for ship pipeline |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103185176A (en) * | 2013-03-25 | 2013-07-03 | 中国船舶重工集团公司第七一九研究所 | High-potential metallic seawater pipeline welding seat plate with composite structure |
| CN104180071A (en) * | 2014-08-28 | 2014-12-03 | 广东江龙船舶制造有限公司 | Marine bedplate with zinc blocks |
| CN104180071B (en) * | 2014-08-28 | 2016-02-10 | 江龙船艇科技股份有限公司 | A kind of band spelter seat board peculiar to vessel |
| CN109572926A (en) * | 2018-09-30 | 2019-04-05 | 沪东中华造船(集团)有限公司 | A kind of logical cabin method of Copper-nickel alloy tube |
| CN110553100A (en) * | 2019-01-03 | 2019-12-10 | 辽宁省水利水电勘测设计研究院有限责任公司（原名称为辽宁省水利水电勘测设计研究院） | Waterproof wall bushing |
| CN110939792A (en) * | 2019-12-08 | 2020-03-31 | 中船西江造船有限公司 | Dissimilar metal through-warehouse pipe fitting and using method thereof |
| CN112984224A (en) * | 2021-03-17 | 2021-06-18 | 中国船舶工业集团公司第七0八研究所 | Sleeve pipe and watertight cabin penetrating structure for ship seawater pipe oil cabin |
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Application publication date: 20121031 |