CN214836157U - Marine anti-corrosion oil pipe - Google Patents

Abstract

The utility model relates to an anticorrosion oil pipe technical field just discloses an ocean is with anticorrosive oil pipe, including the oil pipe base member, the interior terminal surface coating film of oil pipe base member has the anticorrosive coating, the outside fixedly connected with insulating layer of oil pipe base member, the outside fixedly connected with heat insulation support piece of oil pipe base member, the outside of heat insulation support piece is located to the insulating layer cover, the anti high-pressure plastic tubing of outside fixedly connected with of oil pipe base member. The utility model discloses a, the anticorrosion layer plays better anticorrosion effect to fluid, the insulating layer can play thermal-insulated effect, anti high-pressure plastic tubing has certain waterproof anti erosion capacity when having anti high-pressure ability, outside cover is equipped with waterproof rubber sleeve, play the isolation effect to ocean seawater, make inside the difficult erosion pipeline of seawater, reach better anti chloride ion corrosion resistance, it is stronger to make the device reach anti chloride ion corrosion resistance, and temperature difference resistance ability is higher, the life cycle of pipeline in the ocean has been increased, the operation is comparatively stable and safe.

Description

Marine anti-corrosion oil pipe

Technical Field

The utility model relates to an anticorrosion oil pipe technical field specifically is an ocean is with anticorrosion oil pipe.

Background

The oil pipe is a pipeline for transporting crude oil and natural gas from an oil-gas layer to the surface after drilling is completed, and is used for bearing pressure generated in the process of exploitation, along with continuous development of an oil-gas field, the depth of the oil well is continuously deepened, and the working environment of the metal pipe for the oil field is more and more complex, the temperature is higher and higher, and the pressure is higher and higher; the change of the corrosion environment improves the corrosion rate of the pipe and shortens the service life of the pipe.

Ocean corrosion prevention is one of key technologies of ocean engineering, stress corrosion cracking, hydrogen embrittlement, corrosion fatigue and intercrystalline corrosion caused by corrosion of metal in ocean easily cause leakage of oil pipes for ocean, and cause great loss when ecological disasters of ocean environment occur; the existing marine anti-corrosion oil pipe has relatively poor chloride ion corrosion resistance, and the corrosion speed of the pipeline is further accelerated due to the temperature difference between high temperature in the pipeline and high pressure in the sea, so that the marine anti-corrosion oil pipe is provided to solve the problems.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides an ocean is with anticorrosive oil pipe possesses anti chloride ion corrosion ability stronger, and temperature difference resistance ability is higher, has increased the life cycle of pipeline in the ocean, and the operation is comparatively stable and advantage such as safety, has solved ocean anticorrosion oil pipe anti chloride ion corrosion ability not enough relatively, and the difference in temperature is great, has accelerated the problem of the corrosion rate of pipeline.

(II) technical scheme

For realizing that above-mentioned anti chloride ion corrosion ability is stronger, and temperature difference resistance ability is higher, increased the life cycle of pipeline in the ocean, the comparatively stable and safe purpose of operation, the utility model provides a following technical scheme: the utility model provides an ocean is with anticorrosive oil pipe, includes the oil pipe base member, the interior terminal surface coating film of oil pipe base member has the anticorrosive coating, the outside fixedly connected with insulating layer of oil pipe base member, the outside fixedly connected with heat insulation backing sheet of oil pipe base member, the outside of heat insulation backing sheet is located to the insulating layer cover, the outside fixedly connected with anti high-pressure plastic tubing of oil pipe base member, it is a plurality of heat insulation backing sheet fixed connection is in the interior terminal surface of anti high-pressure plastic tubing, a plurality of sealed holding rings of the outside fixedly connected with of anti high-pressure plastic tubing, the outside cover of anti high-pressure plastic tubing is equipped with waterproof rubber sleeve, waterproof rubber sleeve's interior terminal surface and a plurality of sealed holding ring fixed connection.

Preferably, a bonding liquid is sprayed between the waterproof rubber sleeve and the high-pressure resistant plastic pipe, and the bonding liquid is located on the outer surfaces of the plurality of sealing and positioning rings.

Preferably, the high-pressure resistant plastic pipe is a polytetrafluoroethylene pipe.

Preferably, the outer surface of the waterproof rubber sleeve is sprayed with an epoxy resin layer.

Preferably, a dehumidifying and drying bag is arranged between the heat-insulating layer and the high-pressure-resistant plastic pipe, and the dehumidifying and drying bag is positioned between two adjacent heat-insulating support sheets.

(III) advantageous effects

Compared with the prior art, the utility model provides an ocean is with anticorrosive oil pipe possesses following beneficial effect:

1. the marine anti-corrosion oil pipe has the advantages that the anti-corrosion layer is coated inside the oil pipe base body, a better anti-corrosion effect can be achieved on oil liquid in the process of conveying the oil liquid, the heat insulation layer can achieve a heat insulation effect, a heat insulation effect can be achieved on high-temperature oil in the oil pipe base body, the heat insulation support sheet can further achieve a heat insulation effect and simultaneously can support the high-pressure resistant plastic pipe, the high-pressure resistant plastic pipe has certain waterproof and anti-corrosion capabilities while having high-pressure resistant capabilities, low temperature of external seawater is isolated from high temperature in the pipeline, the service cycle of the pipeline is prolonged, the safety is higher, the waterproof rubber sleeve is sleeved outside the anti-corrosion oil pipe, the isolation effect is achieved on the marine seawater, the seawater is not prone to corrode the inside of the pipeline, the sealing positioning rings can achieve a better sealing effect, the seawater is not prone to enter the inside of the pipeline, and accordingly achieves a better anti-chloride ion corrosion capability, the device has the advantages of stronger chloride ion corrosion resistance and higher temperature difference resistance, prolongs the service cycle of the pipeline in the ocean, and is more stable and safe in operation.

2. This marine anticorrosive oil pipe has further increased the leakproofness of device through having the adhesive liquid of spraying between waterproof rubber sleeve pipe and anti high pressure plastic tubing, makes the water source be difficult to cause the erosion to pipeline inside.

3. This marine anticorrosive oil pipe is polytetrafluoroethylene tubular product through setting up anti high pressure plastic tubing, and polytetrafluoroethylene tubular product has stronger crushing resistance and corrosion resisting capacity, and is stronger to the tolerance of ocean sea water, has further increased the life cycle of tubular product.

4. This marine anticorrosive oil pipe has the epoxy layer through the surface spraying at waterproof rubber sleeve, has strengthened the corrosion resistance of tubular product, has increased the practicality of device.

5. This marine anticorrosive oil pipe has placed the dry package of dehumidification through between insulating layer and anti high pressure plastic tubing, when in a small amount of sea water or moisture infiltration tubular product, can adsorb the moisture by the dry package of dehumidification, has further increased the corrosion resistance of tubular product.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic side view of the structure of the present invention;

fig. 3 is a schematic front sectional view of the connection structure of the high-pressure resistant plastic pipe and the sealing positioning ring of the present invention.

In the figure: 1. an oil pipe base body; 2. an anti-corrosion layer; 3. a thermal insulation layer; 4. a heat insulating support sheet; 5. a high pressure resistant plastic tube; 6. sealing the positioning ring; 7. a waterproof rubber sleeve; 8. an epoxy resin layer; 9. and (5) dehumidifying and drying the bags.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, an anti-corrosion oil pipe for ocean comprises an oil pipe base body 1, an inner end surface of the oil pipe base body 1 is coated with an anti-corrosion layer 2, an outer portion of the oil pipe base body 1 is fixedly connected with a heat insulation layer 3, an outer portion of the oil pipe base body 1 is fixedly connected with a heat insulation support sheet 4, the heat insulation layer 3 is sleeved outside the heat insulation support sheet 4, an outer portion of the oil pipe base body 1 is fixedly connected with a high-pressure resistant plastic pipe 5, the heat insulation support sheets 4 are fixedly connected to the inner end surface of the high-pressure resistant plastic pipe 5, the outer portion of the high-pressure resistant plastic pipe 5 is fixedly connected with a plurality of sealing positioning rings 6, an outer portion of the high-pressure resistant plastic pipe 5 is sleeved with a waterproof rubber sleeve 7, and an inner end surface of the waterproof rubber sleeve 7 is fixedly connected with the sealing positioning rings 6;

the scheme has the beneficial effects that: there is anti-corrosion coating 2 through the inside coating film at oil pipe base member 1, play better anticorrosion effect to fluid, insulating layer 3 can play thermal-insulated effect, anti high-pressure plastic tubing 5 has certain waterproof anti-erosion ability when having anti high pressure ability, outside cover is equipped with waterproof rubber sleeve 7, play the isolation effect to ocean sea water, make inside the difficult erosion pipeline of sea water, reach better anti chloride ion corrosion resistance, it is stronger to make the device reach anti chloride ion corrosion resistance, and temperature difference resistance ability is higher, the life cycle of pipeline in the ocean has been increased, it is comparatively stable and safe to operate.

Further, adhesive liquid is sprayed between the waterproof rubber sleeve 7 and the high-pressure resistant plastic pipe 5, and the adhesive liquid is positioned on the outer surfaces of the plurality of sealing and positioning rings 6;

by spraying the adhesive liquid between the waterproof rubber sleeve 7 and the high-pressure-resistant plastic pipe 5, the tightness of the device is further improved, and a water source is not suitable for corroding the inside of the pipeline.

Further, the high-pressure resistant plastic pipe 5 is a polytetrafluoroethylene pipe;

the high-pressure resistant plastic pipe 5 is a polytetrafluoroethylene pipe which has high pressure resistance and corrosion resistance, is high in resistance to ocean seawater, and further prolongs the service cycle of the pipe.

Further, an epoxy resin layer 8 is sprayed on the outer surface of the waterproof rubber sleeve 7;

the epoxy resin layer 8 is sprayed on the outer surface of the waterproof rubber sleeve 7, so that the corrosion resistance of the pipe is enhanced, and the practicability of the device is improved.

Furthermore, a dehumidifying and drying bag 9 is arranged between the heat-insulating layer 3 and the high-pressure-resistant plastic pipe 5, and the dehumidifying and drying bag 9 is positioned between two adjacent heat-insulating support sheets 4;

by placing the dehumidifying and drying bag 9 between the heat-insulating layer 3 and the high-pressure-resistant plastic pipe 5, when a small amount of seawater or moisture permeates into the pipe, the dehumidifying and drying bag 9 can adsorb the moisture, and the corrosion resistance of the pipe is further improved.

The working principle is as follows: the anti-corrosion layer 2 is coated in the oil pipe matrix 1, so that a good anti-corrosion effect can be achieved on oil in the process of conveying the oil, the heat insulation layer 3 can achieve a heat insulation effect and a heat insulation effect on high-temperature oil in the oil pipe matrix 1, the heat insulation support sheet 4 can further achieve the heat insulation effect and simultaneously can support the high-pressure resistant plastic pipe 5, the high-pressure resistant plastic pipe 5 has certain waterproof and anti-corrosion capabilities while having high-pressure resistance, the low temperature of external seawater is isolated from the high temperature in the pipeline, the service cycle of the pipeline is prolonged, the safety is high, the waterproof rubber sleeve 7 is sleeved outside the pipe and has an isolation effect on ocean seawater, the seawater is not easy to corrode the inside of the pipeline, the sealing positioning rings 6 can achieve a good sealing effect, the seawater is not easy to enter the inside of the pipeline, and good anti-chlorine ion corrosion capability is achieved, the device has the advantages that the chloride ion corrosion resistance is high, the temperature difference resistance is high, the service cycle of the pipeline in the ocean is prolonged, the operation is stable and safe, and the problems that the chloride ion corrosion resistance of an ocean anti-corrosion oil pipe is not good enough, the temperature difference is large, and the corrosion speed of the pipeline is accelerated are solved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides an ocean is with anticorrosive oil pipe, includes oil pipe base member (1), its characterized in that: the anti-corrosion oil pipe is characterized in that an anti-corrosion layer (2) is plated on the inner end face of the oil pipe base body (1), a heat insulation layer (3) is fixedly connected to the outer portion of the oil pipe base body (1), a heat insulation support sheet (4) is fixedly connected to the outer portion of the oil pipe base body (1), the heat insulation support sheet (4) is sleeved on the outer portion of the heat insulation support sheet (3), an anti-high-pressure plastic pipe (5) is fixedly connected to the outer portion of the oil pipe base body (1) in a multiple mode, the heat insulation support sheet (4) is fixedly connected to the inner end face of the anti-high-pressure plastic pipe (5), a plurality of sealing positioning rings (6) are fixedly connected to the outer portion of the anti-high-pressure plastic pipe (5), a waterproof rubber sleeve (7) is sleeved on the outer portion of the anti-high-pressure plastic pipe (5), and the inner end face of the waterproof rubber sleeve (7) is fixedly connected with the sealing positioning rings (6).

2. The marine corrosion resistant oil pipe according to claim 1, wherein: and adhesive liquid is sprayed between the waterproof rubber sleeve (7) and the high-pressure resistant plastic pipe (5), and the adhesive liquid is positioned on the outer surfaces of the plurality of sealing and positioning rings (6).

3. The marine corrosion resistant oil pipe according to claim 1, wherein: the high-pressure resistant plastic pipe (5) is a polytetrafluoroethylene pipe.

4. The marine corrosion resistant oil pipe according to claim 1, wherein: and an epoxy resin layer (8) is sprayed on the outer surface of the waterproof rubber sleeve (7).

5. The marine corrosion resistant oil pipe according to claim 1, wherein: a dehumidifying and drying bag (9) is arranged between the heat insulation layer (3) and the high-pressure resistant plastic pipe (5), and the dehumidifying and drying bag (9) is positioned between two adjacent heat insulation support sheets (4).

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