Heat preservation and corrosion prevention petroleum pipeline

Abstract

The utility model discloses a heat preservation and corrosion prevention petroleum pipeline which comprises an inner layer, a heat preservation layer, a separation layer, a corrosion prevention layer, a reinforcing layer and a protection layer. According to the petroleum pipeline, the heat preservation layer is arranged on the outer side of the inner layer, the heat preservation layer is connected with the anti-corrosion layer through the partition layer, the outer side of the anti-corrosion layer is connected with the protection layer through the reinforcing layer, the outer side of the petroleum pipeline can be protected through the protection layer, and the petroleum pipeline is prevented from being damaged; the anti-corrosion operation on the petroleum pipeline can be achieved under mutual cooperation, the petroleum pipeline can be prevented from being affected by external environment factors, corrosion is generated, and the service life of the petroleum pipeline is not affected, the anti-corrosion layer is connected with the heat preservation layer through the partition layer, and the temperature in the petroleum pipeline can be maintained and the cooling speed of petroleum can be reduced through mutual cooperation of the partition layer and the heat preservation layer; and the mobility is maintained, petroleum can be conveniently moved and transported, blockage is avoided, and high practicability is achieved.

Description

Technical Field

[0001] The utility model relates to the field of petroleum pipelines, in particular to a thermal insulation and corrosion-resistant petroleum pipeline. Background Art

[0002] Petroleum, which refers to a mixture of gaseous, liquid and solid hydrocarbons, is a viscous, dark brown liquid that occurs naturally and is known as the "blood of industry."

[0003] After oil is extracted, it must be transported to the corresponding processing department to be better utilized. Among them, the oil pipeline for transporting oil is an indispensable equipment. During the transportation process, due to the high wax content and high oil concentration of oil, it often causes difficulties in oil transportation through the oil pipeline, especially in cold seasons. Due to the low temperature condensation of wax in oil, the flow resistance of oil may increase significantly, which may cause oil to be blocked inside the pipeline, affecting the normal transportation of oil;

[0004] In addition, due to the route of oil transportation, oil pipelines will be laid in different environments, which may cause the oil pipelines to be affected by external environmental factors, causing corrosion to the oil pipelines and affecting the service life of the oil pipelines. Utility Model Content

[0005] Therefore, in order to solve the above-mentioned shortcomings, the utility model provides a thermal insulation and corrosion-resistant petroleum pipeline.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an insulated and anti-corrosion oil pipeline, comprising an inner layer that can contact oil, an insulation layer that can be used for insulation is connected to the outside of the inner layer, an anti-corrosion layer that can be used for corrosion is connected to the outside of the insulation layer through a partition layer, and a protective layer that can protect the oil pipeline is connected to the outside of the anti-corrosion layer through a reinforcement layer.

[0007] Preferably, the inner layer includes a pipe 1 and a ceramic coating, the inner side of the pipe 1 is provided with a ceramic coating, and the outer side is connected to a thermal insulation layer.

[0008] Preferably, the insulation layer comprises an aerogel felt and a polyurethane insulation layer, the inner side of the aerogel felt is connected to the outer side of the pipeline, and the outer side is connected to the polyurethane insulation layer, and a partition layer is provided on the outer side of the polyurethane insulation layer.

[0009] Preferably, the isolation layer includes pipes 2 and support members, the pipes 2 are divided into two groups, inner and outer, and the two groups of pipes 2 are connected via a plurality of groups of support members.

[0010] Preferably, the anti-corrosion layer includes pipeline three, a silicon nitride layer and an anti-corrosion coating. The outer side of pipeline two is connected to pipeline three, the outer side of pipeline three is connected to the silicon nitride layer, the outer side of the silicon nitride layer is provided with an anti-corrosion coating, and the outer side of the anti-corrosion coating is connected to a reinforcement layer.

[0011] Preferably, the protective layer includes a polyethylene coating layer and a protective coating, the inner side of the reinforcing layer is connected to the anti-corrosion coating, the outer side is provided with a polyethylene coating layer, and the outer side of the polyethylene coating layer is provided with a protective coating.

[0012] Preferably, the protective coating material is M fused epoxy powder coating.

[0013] Preferably, the reinforcement layer is a wire ring.

[0014] Beneficial effects of the utility model:

[0015] The utility model has a thermal insulation layer arranged on the outside of the inner layer, the thermal insulation layer is connected to the anti-corrosion layer through a partition layer, and the outside of the anti-corrosion layer is connected to the protective layer through a reinforcement layer. The outside of the oil pipeline can be protected by the protective layer to avoid damage to the oil pipeline, and the anti-corrosion layer includes pipeline three, silicon nitride layer and anti-corrosion coating and other components, which can cooperate with each other to achieve anti-corrosion operation on the oil pipeline, and can avoid the oil pipeline from being affected by external environmental factors, causing corrosion and affecting its service life. The anti-corrosion layer is connected to the thermal insulation layer through the partition layer, and the temperature in the oil pipeline can be maintained through the cooperation of the partition layer and the thermal insulation layer, the cooling speed of the oil can be reduced, the fluidity can be maintained, the movement and transportation of the oil can be facilitated, and blockage can be avoided. The utility model has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the inner layer structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the structure of the thermal insulation layer of the utility model;

[0019] Figure 4 It is a schematic diagram of the partition layer structure of the utility model;

[0020] Figure 5 This is a schematic diagram of the anti-corrosion layer structure of the utility model;

[0021] Figure 6 It is a schematic diagram of the protective layer structure of the utility model.

[0022] Among them: inner layer-1, insulation layer-2, partition layer-3, anti-corrosion layer-4, reinforcement layer-5, protective layer-6, pipeline one-11, ceramic coating-12, aerogel felt-21, polyurethane insulation layer-22, pipeline two-31, support-32, pipeline three-41, silicon nitride layer-42, anti-corrosion coating-43, polyethylene coating-61, protective coating-62. DETAILED DESCRIPTION

[0023] In order to further explain the technical solution of the present utility model, it is described in detail through specific embodiments below.

[0024] See also Figure 1 The utility model provides a heat-insulating and anti-corrosion oil pipeline, including an inner layer 1 that can contact oil, an outer side of the inner layer 1 is connected to an insulation layer 2 that can be used for heat insulation, the outer side of the insulation layer 2 is connected to an anti-corrosion layer 4 that can be used for corrosion prevention through a partition layer 3, and the outer side of the anti-corrosion layer 4 is connected to a protective layer 6 that can protect the oil pipeline through a reinforcement layer 5.

[0025] See also Figure 2-3 The utility model provides a thermal insulation and anti-corrosion petroleum pipeline, wherein the inner layer 1 comprises a pipeline 11 and a ceramic coating 12, the ceramic coating 12 is applied to the inner side of the pipeline 11, and the thermal insulation layer 2 is connected to the outer side;

[0026] The insulation layer 2 includes an aerogel felt 21 and a polyurethane insulation layer 22. The inner side of the aerogel felt 21 is adhered to the outer side of the pipeline 11, and the outer side is connected to the polyurethane insulation layer 22. The outer side of the polyurethane insulation layer 22 is provided with a partition layer 3.

[0027] See also Figure 3-5 The utility model provides a thermal insulation and anti-corrosion petroleum pipeline. The partition layer 3 includes a pipeline 31 and a support 32. The pipeline 31 is divided into two groups, an inner group and an outer group. The two groups of pipelines 31 are connected by a plurality of support members 32. The pipeline 31 is made of alloy stainless steel with high strength. The support member 32 is a ceramic material with poor thermal conductivity, which can reduce the loss of heat inside the pipeline 11.

[0028] The anti-corrosion layer 4 includes a pipe three 41, a silicon nitride layer 42 and an anti-corrosion coating 43. The outer side of the outer pipe two 31 is connected to the pipe three 41. The pipe three 41 is made of stainless steel to prevent rust. The outer side of the pipe three 41 is connected to the silicon nitride layer 42. The outer side of the silicon nitride layer 42 is provided with an anti-corrosion coating 43, and the outer side of the anti-corrosion coating 43 is connected to a reinforcing layer 5. The reinforcing layer 5 is a wire ring that can wrap the anti-corrosion layer 4 to improve its overall strength.

[0029] See also Figure 6The utility model provides an insulated and anti-corrosion petroleum pipeline. The protective layer 6 includes a polyethylene coating layer 61 and a protective coating 62. The inner side of the reinforcement layer 5 is connected to the anti-corrosion coating 43, and the outer side is provided with a polyethylene coating layer 61. The outer side of the polyethylene coating layer 61 is provided with a protective coating 62. The material of the protective coating 62 is 3M fused epoxy powder coating, which has good mechanical properties and can provide protection for the petroleum pipeline.

[0030] Here’s how it works:

[0031] The utility model is placed in a suitable position for use. When in use, the oil flows inside the pipe 11, and the fluidity of the oil is maintained by the anti-sticking property of the ceramic coating 12 inside the pipe 11. The oil flows, and the pipe 11 is insulated by the aerogel felt 21 and the polyurethane insulation layer 22, and the heat loss is blocked by the insulation layer 3.

[0032] The polyethylene coating 61 and the protective coating 62 in the protective layer 6 can improve the outer protection of the oil pipeline to prevent the oil pipeline from being damaged by external impact. The pipeline three 41, the silicon nitride layer 42 and the anti-corrosion coating 43 can improve the corrosion resistance of the oil pipeline, which can effectively extend its service life.

[0033] The above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A thermal insulation and corrosion resistant petroleum pipeline, characterized by: The invention comprises an inner layer (1) that can contact petroleum, the outer side of the inner layer (1) is connected to a heat-insulating layer (2) that can provide heat preservation, the outer side of the heat-insulating layer (2) is connected to an anti-corrosion layer (4) that can provide corrosion protection through a partition layer (3), and the outer side of the anti-corrosion layer (4) is connected to a protective layer (6) that can protect the petroleum pipeline through a reinforcement layer (5).

2. The thermal insulation and corrosion-resistant petroleum pipeline according to claim 1, characterized in that: The inner layer (1) comprises a pipe (11) and a ceramic coating (12); the inner side of the pipe (11) is provided with the ceramic coating (12), and the outer side is connected with a thermal insulation layer (2).

3. The thermal insulation and corrosion-resistant petroleum pipeline according to claim 2, characterized in that: The thermal insulation layer (2) comprises an aerogel felt (21) and a polyurethane thermal insulation layer (22); the inner side of the aerogel felt (21) is connected to the outer side of the pipeline (11), and the outer side is connected to the polyurethane thermal insulation layer (22); and a partition layer (3) is provided on the outer side of the polyurethane thermal insulation layer (22).

4. The thermal insulation and corrosion-resistant petroleum pipeline according to claim 3, characterized in that: The partition layer (3) comprises pipes (31) and support members (32); the pipes (31) are divided into two groups, inner and outer, and the two groups of pipes (31) are connected via a plurality of groups of support members (32).

5. The thermal insulation and corrosion-resistant petroleum pipeline according to claim 4, characterized in that: The anti-corrosion layer (4) comprises a pipeline three (41), a silicon nitride layer (42) and an anti-corrosion coating (43); the outer side of the pipeline two (31) is connected to the pipeline three (41); the outer side of the pipeline three (41) is connected to the silicon nitride layer (42); the outer side of the silicon nitride layer (42) is provided with an anti-corrosion coating (43); and the outer side of the anti-corrosion coating (43) is connected to a reinforcement layer (5).

6. The thermal insulation and corrosion-resistant petroleum pipeline according to claim 5, characterized in that: The protective layer (6) comprises a polyethylene coating layer (61) and a protective coating (62); the inner side of the reinforcing layer (5) is connected to the anti-corrosion coating (43); the outer side is provided with a polyethylene coating layer (61); and the outer side of the polyethylene coating layer (61) is provided with a protective coating (62).

7. The thermal insulation and corrosion-resistant petroleum pipeline according to claim 6, characterized in that: The material of the protective coating (62) is 3M fused epoxy powder coating.

8. The thermal insulation and corrosion resistant petroleum pipeline according to claim 7, characterized in that: The reinforcement layer (5) is a wire ring.

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