CN216078673U

CN216078673U - Heat-insulating and corrosion-resistant petroleum pipeline

Info

Publication number: CN216078673U
Application number: CN202122593546.0U
Authority: CN
Inventors: 赵跃; 陈登林; 李文森; 李明
Original assignee: Sichuan Qing Da Industrial Group Co ltd
Current assignee: Sichuan Qing Da Industrial Group Co ltd
Priority date: 2021-10-27
Filing date: 2021-10-27
Publication date: 2022-03-18
Anticipated expiration: 2031-10-27

Abstract

The utility model relates to the technical field of transportation of dental oil, in particular to a heat-insulating and corrosion-resistant petroleum pipeline which sequentially comprises an outer corrosion-resistant layer, an outer pipe, a heat-insulating layer, an inner pipe, a first corrosion-resistant layer, a ceramic layer and a second corrosion-resistant layer from outside to inside; a first reinforcing ring and a second reinforcing ring are coaxially arranged in the heat-insulating layer; the first reinforcing ring and the second reinforcing ring comprise a plurality of reinforcing ribs arranged at intervals, the reinforcing ribs are arranged along the length direction of the inner pipe, and the sections of the reinforcing ribs are wavy; a plurality of concave holes are formed in the outer anti-corrosion layer at intervals, and ratproof and insect-proof agents are arranged in the concave holes. Through this petroleum pipeline, can effectively solve the outer tube and be easily corroded and the unstable problem of heat preservation structure.

Description

Heat-insulating and corrosion-resistant petroleum pipeline

Technical Field

The utility model relates to the technical field of petroleum transportation, in particular to a heat-insulating and corrosion-resistant petroleum pipeline.

Background

After oil extraction, it must be transported to the appropriate processing department for better utilization, where the oil pipelines for transporting the oil are indispensable facilities. In the oil extraction process of the petroleum, the wax content of the petroleum is too high, the oil extraction concentration is high, the oil transportation difficulty of an oil pipeline is often caused, and particularly in cold seasons, the flow resistance of the petroleum in the petroleum pipeline can be greatly increased, so that the petroleum pipeline cannot normally work.

In the prior art, a chinese utility model patent document with publication number CN205446981U and publication date of 2016, 08 and 10 is proposed to solve the above-mentioned technical problems, and the technical scheme disclosed in the patent document is as follows: the heat-insulating anticorrosive petroleum pipeline comprises an outer pipeline layer, a protective layer arranged on one side of the outer pipeline layer, a heat-insulating layer arranged on the other side of the outer pipeline layer, an inner pipeline layer arranged on one side of the heat-insulating layer, a flow guide protrusion integrally formed with the inner pipeline layer, and an anticorrosive layer arranged on the surfaces of the inner pipeline layer and the flow guide protrusion.

In the actual use process, the following problems can occur in the technical scheme: the protective layer is easily damaged by rats and insects, so that the outer layer of the pipeline is easily corroded; the structure of the heat-insulating layer is unstable.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a heat-insulating and corrosion-resistant petroleum pipeline which can effectively solve the problems that an outer pipe is easy to corrode and a heat-insulating layer is unstable in structure.

The utility model is realized by adopting the following technical scheme:

a heat-insulating anticorrosion petroleum pipeline is characterized in that: the outer anticorrosive coating, the outer pipe, the heat-insulating layer, the inner pipe, the first anticorrosive coating, the ceramic layer and the second anticorrosive coating are sequentially arranged from outside to inside; a first reinforcing ring and a second reinforcing ring are coaxially arranged in the heat-insulating layer; the first reinforcing ring and the second reinforcing ring comprise a plurality of reinforcing ribs arranged at intervals, the reinforcing ribs are arranged along the length direction of the inner pipe, and the sections of the reinforcing ribs are wavy; a plurality of concave holes are formed in the outer anti-corrosion layer at intervals, and ratproof and insect-proof agents are arranged in the concave holes.

The reinforcing ribs in the first reinforcing ring and the second reinforcing ring are staggered.

Two ends of the reinforcing rib in the second reinforcing ring are respectively connected with two adjacent reinforcing ribs in the first reinforcing ring to form a ring shape in a surrounding mode.

The wave crests and the wave troughs of the reinforcing ribs are horizontal.

The positions of the wave crests and the wave troughs of the reinforcing ribs are acute angles.

The ceramic coating is characterized by further comprising a plurality of flow guide ribs, wherein the flow guide ribs are connected with the ceramic layer and protrude outwards from the second anticorrosive layer, and the second anticorrosive layer is coated on the surface of the ceramic layer and the outer convex surface of the flow guide ribs.

The ceramic layer is provided with a T-shaped groove, and the flow guide rib is provided with a T-shaped head matched with the T-shaped groove.

And asphalt epoxy resin anticorrosive paint is coated in the T-shaped groove and on the peripheral surface of the flow guide rib.

The water conservancy diversion muscle is the ceramic strip, water conservancy diversion muscle and ceramic layer are integrated into one piece.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the outer anti-corrosion layer is also internally provided with a plurality of concave holes at intervals, and the concave holes are internally provided with the rat and insect prevention medicament, so that the probability of damage of rats and insects to the outer anti-corrosion layer can be reduced, and the phenomenon that the outer pipe is easily corroded after the outer anti-corrosion layer is damaged by rats and insects is avoided. In addition, the heat-insulating layer is also provided with two layers of reinforcing rings, so that the heat-insulating layer is well supported, and the lasting heat-insulating effect of the heat-insulating layer is ensured.

2. The reinforcing ribs in the first reinforcing ring and the second reinforcing ring are staggered, the arrangement is more uniform, the protection effect of the heat-insulating layer is convenient to enhance, and the overall structure is more stable.

3. The strengthening rib in the first reinforcing ring encloses jointly with the strengthening rib in the second reinforcing ring and closes the ring-type that forms, has divided into the heat preservation two-layer, and the ring-type can play good isolation effect, and inboard heat preservation is difficult to receive the damage, and the heat preservation in the outside is destroyed and also can not influence the heat preservation effect of inboard heat preservation.

4. The crest and the trough position department of strengthening rib are the level form, have enlarged the contact surface, and the supporting effect is better, and the structure of heat preservation is more stable.

5. The flow guide rib can realize good flow guide effect and realize the transmission and flow guide of petroleum.

6. The ceramic layer is provided with a T-shaped groove, the flow guide rib is provided with a T-shaped head matched with the T-shaped groove, and the fixing effect of the flow guide rib is better.

7. Asphalt epoxy resin anticorrosive paint is coated on the outer peripheral surfaces of the T-shaped groove and the flow guide rib, so that the protection has no dead angle, and the inner wall protection effect on the inner pipe is better.

8. The water conservancy diversion muscle is the ceramic strip, water conservancy diversion muscle and ceramic layer are integrated into one piece, and the processing of being convenient for, and the connection between water conservancy diversion muscle and the ceramic layer is more stable.

Drawings

The utility model will be described in further detail with reference to the following description taken in conjunction with the accompanying drawings and detailed description, in which:

FIG. 1 is a schematic diagram of one embodiment of the present invention;

FIG. 2 is another schematic structural view of the present invention;

the labels in the figure are:

1. the anti-corrosion device comprises an outer anti-corrosion layer, 2, an outer pipe, 3, a heat preservation layer, 4, an inner pipe, 5, a first anti-corrosion layer, 6, a ceramic layer, 7, a second anti-corrosion layer, 8, reinforcing ribs, 9, a rat and insect prevention medicament, 10, flow guide ribs, 11 and a T-shaped groove.

Detailed Description

Example 1

As a basic embodiment of the utility model, the utility model comprises a heat-insulating anticorrosion petroleum pipeline which sequentially comprises an outer anticorrosion layer 1, an outer pipe 2, a heat-insulating layer 3, an inner pipe 4, a first anticorrosion layer 5, a ceramic layer 6 and a second anticorrosion layer 7 from outside to inside. A first reinforcing ring and a second reinforcing ring are coaxially arranged in the heat-insulating layer 3. The first reinforcing ring and the second reinforcing ring comprise a plurality of reinforcing ribs 8 arranged at intervals. The reinforcing ribs 8 are arranged along the length direction of the inner tube 4, and the cross section of the reinforcing ribs is wavy. A plurality of concave holes are arranged in the outer anticorrosive layer 1 at intervals, and ratproof and insect-proof medicaments 9 are arranged in the concave holes.

Example 2

As a preferred embodiment of the utility model, the utility model comprises a heat-insulating anticorrosion petroleum pipeline which sequentially comprises an outer anticorrosion layer 1, an outer pipe 2, a heat-insulating layer 3, an inner pipe 4, a first anticorrosion layer 5, a ceramic layer 6 and a second anticorrosion layer 7 from outside to inside. A first reinforcing ring and a second reinforcing ring are coaxially arranged in the heat-insulating layer 3. First reinforcing ring and second reinforcing ring include the strengthening rib 8 that a plurality of intervals set up, and 8 positions of strengthening rib in first reinforcing ring and the second reinforcing ring are crisscross mutually. The strengthening rib 8 sets up along the length direction of inner tube 4, and its section is wavy, more specifically, the crest and the trough position department of strengthening rib 8 are the level form. A plurality of concave holes are arranged in the outer anticorrosive layer 1 at intervals, and ratproof and insect-proof medicaments 9 are arranged in the concave holes.

Example 3

As another preferred embodiment of the utility model, referring to the attached figure 2 of the specification, the utility model comprises an insulation and corrosion-resistant petroleum pipeline, which comprises an outer corrosion-resistant layer 1, an outer pipe 2, an insulation layer 3, an inner pipe 4, a first corrosion-resistant layer 5, a ceramic layer 6 and a second corrosion-resistant layer 7 from outside to inside in sequence. A first reinforcing ring and a second reinforcing ring are coaxially arranged in the heat-insulating layer 3. First reinforcing ring and second reinforcing ring include the strengthening rib 8 that a plurality of intervals set up, 8 positions of strengthening rib in first reinforcing ring and the second reinforcing ring are crisscross mutually. The strengthening rib 8 sets up along the length direction of inner tube 4, and its section is wavy, and is specific, the crest and the trough position department of strengthening rib 8 are the acute angle shape. A plurality of concave holes are arranged in the outer anticorrosive layer 1 at intervals, and ratproof and insect-proof medicaments 9 are arranged in the concave holes.

The ceramic layer 6 is provided with a plurality of T-shaped grooves 11, and a plurality of flow guide ribs 10 matched with the T-shaped grooves 11 are arranged in the T-shaped grooves 11. One end of the flow guide rib 10 is connected with the ceramic layer 6, the other end of the flow guide rib protrudes out of the second anticorrosive layer 7, asphalt epoxy resin anticorrosive coatings are coated in the T-shaped groove 11 and on the outer peripheral surface of the flow guide rib 10, and the second anticorrosive layer 7 is coated on the outer convex surfaces of the ceramic layer 6 and the flow guide rib 10.

Example 4

Referring to the attached figure 1 of the specification, the utility model comprises a heat-insulating and corrosion-resistant petroleum pipeline which sequentially comprises an outer corrosion-resistant layer 1, an outer pipe 2, a heat-insulating layer 3, an inner pipe 4, a first corrosion-resistant layer 5, a ceramic layer 6 and a second corrosion-resistant layer 7 from outside to inside. The outer anticorrosive coating 1 can be the rubber layer, still the interval is equipped with a plurality of shrinkage pools in the outer anticorrosive coating 1, be equipped with protection against rodents protection against insects medicament 9 in the shrinkage pool.

A first reinforcing ring and a second reinforcing ring are coaxially arranged in the heat-insulating layer 3. First reinforcing ring and second reinforcing ring include the strengthening rib 8 that a plurality of intervals set up, strengthening rib 8 sets up along the length direction of inner tube 4, and its section is wavy, specifically does the crest and the trough position department of strengthening rib 8 are the level form. And two ends of the reinforcing rib 8 in the second reinforcing ring are respectively connected with two adjacent reinforcing ribs 8 in the first reinforcing ring to form a ring shape by enclosing together.

Still include a plurality of water conservancy diversion muscle 10, water conservancy diversion muscle 10 links to each other with ceramic layer 6, and evagination in second anticorrosive coating 7, the coating of second anticorrosive coating 7 is on the outer convex surface of ceramic layer 6 surface and water conservancy diversion muscle 10. The flow guide ribs 10 can be ceramic strips, and the flow guide ribs 10 and the ceramic layer 6 are integrally formed. The second anticorrosive layer 7 may be an asphalt epoxy resin anticorrosive paint, and the first anticorrosive layer 5 may be an epoxy resin paint.

In summary, after reading the present disclosure, those skilled in the art should make various other modifications without creative efforts according to the technical solutions and concepts of the present disclosure, which are within the protection scope of the present disclosure.

Claims

1. A heat-insulating anticorrosion petroleum pipeline is characterized in that: the composite material sequentially comprises an outer anticorrosive layer (1), an outer pipe (2), a heat-insulating layer (3), an inner pipe (4), a first anticorrosive layer (5), a ceramic layer (6) and a second anticorrosive layer (7) from outside to inside; a first reinforcing ring and a second reinforcing ring are coaxially arranged in the heat-insulating layer (3); the first reinforcing ring and the second reinforcing ring comprise a plurality of reinforcing ribs (8) which are arranged at intervals, the reinforcing ribs (8) are arranged along the length direction of the inner pipe (4), and the cross sections of the reinforcing ribs are wavy; a plurality of concave holes are arranged in the outer anticorrosive layer (1) at intervals, and ratproof and insect-proof medicaments (9) are arranged in the concave holes.

2. The heat-insulating anticorrosive petroleum pipeline according to claim 1, characterized in that: the reinforcing ribs (8) in the first reinforcing ring and the second reinforcing ring are staggered.

3. The heat-insulating anticorrosive petroleum pipeline according to claim 1, characterized in that: two ends of a reinforcing rib (8) in the second reinforcing ring are respectively connected with two adjacent reinforcing ribs (8) in the first reinforcing ring to form a ring shape in a surrounding mode.

4. A heat insulating and corrosion preventing petroleum pipeline as claimed in claim 2 or 3, wherein: the wave crests and the wave troughs of the reinforcing ribs (8) are horizontal.

5. A heat insulating and corrosion preventing petroleum pipeline as claimed in claim 2 or 3, wherein: the positions of the wave crests and the wave troughs of the reinforcing ribs (8) are acute angles.

6. The heat-insulating anticorrosive petroleum pipeline according to claim 1, characterized in that: still include a plurality of water conservancy diversion muscle (10), water conservancy diversion muscle (10) link to each other with ceramic layer (6), and evagination in second anticorrosive coating (7), coating of second anticorrosive coating (7) is on the outer convex surface of ceramic layer (6) surface and water conservancy diversion muscle (10).

7. The heat-insulating anticorrosive petroleum pipeline according to claim 6, characterized in that: the ceramic layer (6) is provided with a T-shaped groove (11), and the flow guide rib (10) is provided with a T-shaped head matched with the T-shaped groove (11).

8. The heat-insulating anticorrosive petroleum pipeline according to claim 7, characterized in that: the inner part of the T-shaped groove (11) and the outer peripheral surface of the flow guide rib (10) are coated with asphalt epoxy resin anticorrosive paint.

9. The heat-insulating anticorrosive petroleum pipeline according to claim 6, characterized in that: the flow guide ribs (10) are ceramic strips, and the flow guide ribs (10) and the ceramic layer (6) are integrally formed.