CN205504320U - Double entry anti -corrosion metal corrugated pipe - Google Patents
Double entry anti -corrosion metal corrugated pipe Download PDFInfo
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- CN205504320U CN205504320U CN201620277475.XU CN201620277475U CN205504320U CN 205504320 U CN205504320 U CN 205504320U CN 201620277475 U CN201620277475 U CN 201620277475U CN 205504320 U CN205504320 U CN 205504320U
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- flexible hose
- corrugated flexible
- pipe
- pipeline
- pillar
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Abstract
The utility model discloses an use the double entry anti -corrosion metal corrugated pipe on offshore oil drilling platform, it comprises the pipeline of both ends symmetries easement takeover, pillar, corrugated pipe, net cover, pipe joint and return bend. The utility model discloses on the basis that does not change the flexible characteristic of supporting pipeline, through set up attach including anticorrosive coating on the outer pipe wall solve the problem of anti seawater corrosion. The outer anti -corrosion layer attaches on the pillar that is connected in proper order with the takeover, net cover and return bend outer wall, this for the anticorrosive coating vulcanite make. Interior for the anticorrosive coating polytetrafluoroethylene make, it attaches on the takeover that is connected, corrugated pipe, pipe joint and return bend inner wall. The compound anticorrosion structure of this kind accomplishes to keep apart sea water and the contact of pipeline metal components completely, can avoid taking place the sea water intrusion accident, ensures at least 10000 hours of the trouble -free operation of supporting pipeline. The utility model discloses it is supporting to be particularly suitable for offshore oil drilling platform and flagship.
Description
Technical field
This utility model relates to a kind of compensation of pipeline element, and specifically, this utility model relates to a kind of metal bellow, the compound non-corrosive metal (NCM) corrugated flexible hose of a kind of anti-sea water intrusion.
Background technology
Industry pipe network, urban heating network some nodes at, because of by the temperature of built-in medium or the pressure influence corresponding thermal deformation of generation and axial thrust.In order to reduce thermal deformation and the axial thrust destructiveness to pipeline, engineering generally configures at pipeline important node metal bellow, utilizes the flexibility of metal bellow to absorb or compensate piping displacement, thus reach the purpose that supporting network security runs.On market, commercial metal corrugated flexible hose generally makes of stainless sheet steel, and high-quality rustless steel corrosion resisting property meets the use requirement of most of occasion.But, some pipeline pumped (conveying) mediums of offshore drilling platforms configuration are sea water, and under the conditions of certain temperature and pressure, sea water separates out the H of trace2S、CO2, the corrosive goods combined material continuous erosion tube wall such as CL, easily cause supporting metal bellow tube wall breakdown accident.Because offshore drilling platforms geographical position is special, the prescription of auxiliary equipment being higher than land product, the metal bellow that prior art produces is because lacking general effective anticorrosion structure, therefore it is supporting not to be suitable for offshore drilling platforms.
Utility model content
This utility model is special mainly for offshore drilling platforms environment; the easy sea-worn problem of metal bellow of application prior art; a kind of compound non-corrosive metal (NCM) corrugated flexible hose being equipped with protective layer at inside and outside wall is proposed; this compound anticorrosion structure is simple, make easily; both accomplished that sea water was not directly contacted with hose wall; the most do not change its flexible characteristic, owing to rationally solving tube wall Anticorrosion, thus be greatly improved pipeline service life.
This utility model is achieved through the following technical solutions technical goal.
Compound non-corrosive metal (NCM) corrugated flexible hose, it by taking over, pillar, corrugated flexible hose, net, pipe joint and bend pipe form the pipeline of two ends symmetry easement.The described bend pipe two ends mouth of pipe is tightly connected corrugated flexible hose by pipe joint respectively, is tightly connected adapter in the lump after another pipe end of corrugated flexible hose suit pillar.Described adapter is the straight tube that one end is equipped with flange, has one end of flange outwardly.The braiding of described net steel band forms, and is set with net on corrugated flexible hose outer wall.It thes improvement is that: rubber-coated matter anticorrosive coat on the outer wall of the pillar, net and the bend pipe that are connected with adapter order, and is all coated with plastics matter anticorrosive coat at the adapter being connected, corrugated flexible hose, pipe joint and elbow internal wall.
Bend pipe in said structure is equal pipe, and its bore is equal to the bore of corrugated flexible hose, pipeline infolding bent angle α=90 °～140 °.
As further improvement project, the rubber mass anticorrosive coat of pipeline outer wall cladding is vulcanized rubber article, this protection thickness 0.30～1.0mm.
As further improvement project, the plastics matter anticorrosive coat that inner-walls of duct is all coated with is polytetrafluoroethylproducts products, this protection thickness 0.20～0.30mm.
This utility model compared with prior art, has the positive effect that:
1, the protective layer made at the most preset macromolecule material of inner and outer walls of pipeline, simple in construction, good manufacturability, cost of manufacture are low, easily realize industrialization；
2, inner and outer walls of pipeline is provided with anti-corrosion protective layer, avoids Korrosionsmedium to contact pipeline, favorable anti-corrosion effect completely；
3, the interior external protection of pipeline configuration all has good flexibility, can play antisepsis in the structure, the most not change the flexible characteristic of pipeline.
Accompanying drawing explanation
Fig. 1 is this utility model embodiment 1 structural representation, infolding bent angle α=90 ° in figure.
Fig. 2 is this utility model embodiment 2 structural representation, infolding bent angle α=135 ° in figure.
Detailed description of the invention
Below according to accompanying drawing and in conjunction with the embodiments, the utility model is described in further detail.
Embodiment 1
The embodiment 1 of compound non-corrosive metal (NCM) corrugated flexible hose shown in Fig. 1, this example bore is Φ 273mm, application scenario oil drilling platform at sea, and main corrosion resistant index is to connect in the seawater to soak 5000 hours altogether, and inner and outer walls of pipeline is corrosion-free.This utility model is formed the pipeline of two ends symmetry easement by adapter 1, pillar 2, corrugated flexible hose 3, net 4, pipe joint 5 and bend pipe 6.Infolding bent angle α=90 ° of bend pipe 6 in the present embodiment, the bend pipe 6 two ends mouth of pipe is tightly connected corrugated flexible hose 3 by pipe joint 5 respectively, is tightly connected adapter 1 in the lump after another pipe end of corrugated flexible hose 3 suit pillar 2.Described adapter 1 is stereoplasm tube, and straight-through adapter 1 has flange one end outwardly, and flange face is easy to outer connection.The steel band braiding of described net 4 forms, and the net 4 tightly restrainted on corrugated flexible hose 3 outer wall constitutes reinforced structure, is conducive to improving the bearing capacity of corrugated flexible hose 3, increases safety.Because of offshore drilling platforms bad environments, the requirement for anticorrosion to auxiliary equipment is the highest, is otherwise not suitable for supporting.In order to meet the supporting requirement of offshore drilling platforms, this utility model on the basis of not changing supporting pipe flexible characteristic, the problem that the anticorrosive coat being attached on inside and outside tube wall by increase solves anti-seawater corrosion.External anti-corrosion layer is attached on the outer wall of pillar 2, net 4 and bend pipe 6 that is connected with adapter 1 order, and this anticorrosive coat vulcanite is made, vulcanite thickness 0.30mm of integral coating in the present embodiment.Interior anticorrosive coat politef manufacture, it is directly attached on the adapter 1, corrugated flexible hose 3, pipe joint 5 and bend pipe 6 inwall that are connected, in the present embodiment in anticorrosion thickness 0.20mm.External anti-corrosion layer and interior anticorrosive coat wall thickness in said structure are the thinnest, add material therefor and are soft, so configuring compound anticorrosion structure do not change the original flexible characteristic of pipeline.The seawater corrosion resistance material that vulcanite and politef are well recognized as, contacts with tube metal component with they insulating sea waters, can avoid sea water intrusion accident completely, it is ensured that ducts failure-free operation at least 10000 hours.
Embodiment 2
Compound non-corrosive metal (NCM) corrugated flexible hose embodiment 2 shown in Fig. 2, this example bore is Φ 800mm, and application scenario remains offshore drilling platforms, and its main corrosion resistant index is identical with implementing.Although the present embodiment relative aperture embodiment 1 is big many, its basic structure is identical with material used, difference of them is only that the infolding bent angle of bend pipe 6 adds greatly α=135 °, external anti-corrosion layer thickness is adjusted to 0.80mm, interior anticorrosive coat thickness is adjusted to 0.30mm, while it is true, the application effect of embodiment 2 is identical with embodiment 1, therefore narration is not repeated.
Claims (4)
1. a compound non-corrosive metal (NCM) corrugated flexible hose, it is formed the pipeline of two ends symmetry easement by taking over (1), pillar (2), corrugated flexible hose (3), net (4), pipe joint (5) and bend pipe (6)；Described bend pipe (6) the two ends mouth of pipe is tightly connected corrugated flexible hose (3) by pipe joint (5) respectively, is tightly connected adapter (1) in the lump after corrugated flexible hose (3) another pipe end suit pillar (2)；Described adapter (1) is the straight tube that one end is equipped with flange, has one end of flange outwardly；Described net (4) steel band braiding forms, and is set with net (4) on corrugated flexible hose (3) outer wall；It is characterized in that: rubber-coated matter anticorrosive coat on the outer wall of the pillar (2), net (4) and the bend pipe (6) that are connected with adapter (1) order, and be all coated with plastics matter anticorrosive coat at the adapter (1) being connected, corrugated flexible hose (3), pipe joint (5) and bend pipe (6) inwall.
Compound non-corrosive metal (NCM) corrugated flexible hose the most according to claim 1, it is characterised in that: described bend pipe (6) is equal pipe, and its bore is equal to the bore of corrugated flexible hose (3), pipeline infolding bent angle α=90 °～140 °.
Compound non-corrosive metal (NCM) corrugated flexible hose the most according to claim 1, it is characterised in that: described rubber mass anticorrosive coat is vulcanized rubber article, this anticorrosion thickness 0.30～1.0mm.
Compound non-corrosive metal (NCM) corrugated flexible hose the most according to claim 1, it is characterised in that: described plastics matter anticorrosive coat is polytetrafluoroethylproducts products, this anticorrosion thickness 0.20～0.30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620277475.XU CN205504320U (en) | 2016-04-06 | 2016-04-06 | Double entry anti -corrosion metal corrugated pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620277475.XU CN205504320U (en) | 2016-04-06 | 2016-04-06 | Double entry anti -corrosion metal corrugated pipe |
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| Publication Number | Publication Date |
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| CN205504320U true CN205504320U (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620277475.XU Active CN205504320U (en) | 2016-04-06 | 2016-04-06 | Double entry anti -corrosion metal corrugated pipe |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736890A (en) * | 2016-04-06 | 2016-07-06 | 江苏曙光压力容器有限公司 | Duplex anticorrosive metal corrugated hose |
-
2016
- 2016-04-06 CN CN201620277475.XU patent/CN205504320U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736890A (en) * | 2016-04-06 | 2016-07-06 | 江苏曙光压力容器有限公司 | Duplex anticorrosive metal corrugated hose |
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