A corrosion-resistant and heat-insulating oil pipe

Abstract

This utility model relates to the field of oil extraction technology and discloses a corrosion-resistant and heat-insulating oil pipe, including an oil pipeline made of a multi-layer composite structure. One end of the oil pipeline is fixedly connected to a connector, and the other end has an annular inner groove that fits into the connector. A collar is fixedly connected to the side wall of the oil pipeline for easy bundling of multiple oil pipelines and has an embedded RFID chip. The collar has at least one bolt hole for connecting an external support frame, and its outer peripheral wall has at least one groove with a fluorescent strip adhered inside. This utility model utilizes the combination of the annular groove and the strip to achieve a tight bundling effect for multiple pipelines, solving the problem of slippage and chaos during cluster transportation and laying, and improving operational convenience. Simultaneously, the fluorescent strip provides clear nighttime marking of the pipeline location.

Description

Technical Field

[0001] This utility model relates to the field of oil extraction technology, and in particular to a corrosion-resistant and heat-insulating oil pipe. Background Technology

[0002] Petroleum, as a vital energy resource, is widely used across various industries globally, particularly in the energy and chemical sectors. With the ever-increasing demand for oil extraction, transportation, and storage, oil pipelines play a crucial role as essential infrastructure connecting oil fields, refineries, and transportation networks. Oil pipelines not only must withstand extreme environmental conditions such as high pressure and high temperature, but also face various corrosive factors from the outside world. Corrosion is especially severe in long-term buried or underwater environments, directly impacting the safe transportation and efficient utilization of oil resources.

[0003] Existing oil pipelines, during cluster transportation and laying, are typically secured manually with simple bundling. This method is highly susceptible to friction and external environmental factors, making pipelines prone to slippage, misalignment, or disorder, increasing the complexity of transportation and construction. Furthermore, at night or in low-light conditions, the lack of clear markings on pipeline locations makes it difficult for inspection and maintenance personnel to promptly identify and address potential problems, impacting work efficiency and safety. Therefore, a corrosion-resistant and heat-insulating oil pipeline is proposed to address these issues. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a corrosion-resistant and heat-insulating oil pipe, which aims to improve the problems of unstable bundling during cluster transportation and lack of clear marking of pipeline location at night or in environments with insufficient light in the existing technology.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a corrosion-resistant and heat-insulating oil pipe, comprising:

[0006] An oil pipeline, the oil pipeline being made of a multi-layer composite structure, with a plug connector fixedly connected to one end of the oil pipeline, and an inner groove annularly formed inside the other end of the oil pipeline, the inner groove fitting into the plug connector;

[0007] A collar is fixedly connected to the side wall of an oil pipeline to facilitate the bundling of multiple oil pipelines. It has an embedded RFID chip and at least one bolt hole inside for connecting an external support frame. The outer peripheral wall of the collar has at least one groove and a fluorescent strip is adhered inside.

[0008] The above technical solutions enable rapid connection between pipelines, improve installation efficiency, and facilitate the overall positioning, traceability, and nighttime identification of the pipeline, thereby enhancing the safety and management convenience of oil pipelines.

[0009] Preferably, the oil pipeline comprises, from the inside out: a steel pipe body, an anti-corrosion layer, an insulation layer, an adhesive layer, and an outer protective layer.

[0010] The above technical solution achieves the effect of multi-layered synergistic protection, giving the pipeline strength, corrosion resistance and heat insulation properties, thus extending its service life.

[0011] Preferably, the anti-corrosion layer is made of epoxy resin coating, which is attached to the outer surface of the steel pipe body to provide corrosion protection for the pipeline.

[0012] The above technical solutions have achieved the effect of improving the corrosion resistance of steel pipes and avoiding damage to the steel pipe body caused by long-term transportation or external environmental influences.

[0013] Preferably, the insulation layer is made of polyurethane foam and is located outside the anti-corrosion layer to seal heat.

[0014] The above technical solutions effectively maintain the temperature of oil transportation, reduce energy loss, and ensure transportation efficiency and stability.

[0015] Preferably, the adhesive layer is located between the insulation layer and the outer protective layer to make the connection between the two more tight.

[0016] The above technical solutions enhance the overall bonding force between functional layers, prevent delamination or detachment, and thus improve the stability of the pipeline structure.

[0017] Preferably, the outer protective layer is disposed on the outermost layer of the oil pipeline and is made of high-density polyethylene material, which is used to provide protection for the anti-corrosion layer and the insulation layer.

[0018] The above technical solutions have improved the mechanical strength and impact resistance of oil pipelines, ensuring that they maintain good protective performance under complex working conditions.

[0019] Preferably, the collar has an annular groove inside, which is used to fix the strip during binding.

[0020] The above technical solution facilitates the rapid and stable binding and fixing of multiple pipes during construction, thereby improving construction efficiency and overall stability.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the combination of annular groove and rolling strip achieves the effect of fastening and binding multiple pipes, solving the problem of slippage and chaos in cluster transportation and laying, and improving the convenience of operation; the combination of bolt hole and external support frame achieves the effect of stabilizing and fixing pipes, solving the problem of displacement and vibration caused by environmental load, and improving operational safety; and the use of fluorescent strips achieves the effect of clearly marking the position of pipes at night, solving the safety hazard problem when the light is insufficient, and improving the safety of night inspection and maintenance.

[0023] 2. In this utility model, through the cooperation of multiple composite structures such as the steel pipe body, anti-corrosion layer, heat insulation layer and outer protective layer, a comprehensive protection effect integrating anti-corrosion, heat insulation and impact resistance is achieved. This solves the problems of easy corrosion, large heat loss and susceptibility to damage from the external environment in single-material pipes, and improves the durability, service life and energy transmission efficiency of the pipeline. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of an anti-corrosion and heat-insulating oil pipe proposed in this utility model;

[0025] Figure 2 This is a schematic diagram of the structure of the end of an anti-corrosion and heat-insulating oil pipe according to the present invention.

[0026] Figure 3 This is a schematic diagram of the structure of a collar for an anti-corrosion and heat-insulating oil pipe proposed in this utility model;

[0027] Figure 4 This is a schematic diagram of the bundling of an anti-corrosion and heat-insulating oil pipe according to the present invention;

[0028] Figure 5 This is a schematic diagram of the composite structure of an anti-corrosion and heat-insulating oil pipeline proposed in this utility model.

[0029] Legend:

[0030] 1. Oil pipeline; 101. Steel pipe body; 102. Anti-corrosion layer; 103. Insulation layer; 104. Adhesive layer; 105. Outer protective layer; 2. Connector; 3. Inner groove; 4. Collar; 5. Annular groove; 6. Bolt hole; 7. Embedded groove; 8. Fluorescent strip. Detailed Implementation

[0031] Reference Figures 1-4 One embodiment of this utility model is a corrosion-resistant and heat-insulating oil pipe, comprising:

[0032] Oil pipeline 1 is made of a multi-layer composite structure. One end of oil pipeline 1 is fixedly connected to a plug 2, and the other end of oil pipeline 1 has an inner groove 3 that is circumferentially opened inside. The plug 2 is used to plug into the inner groove 3 of another oil pipeline 1, thereby realizing a fast and stable connection between pipelines, ensuring the sealing and structural integrity of the entire pipeline, and improving the laying efficiency. The inner groove 3 fits into the plug 2, and the plug 2 cooperates with the inner groove 3 to make an axial insertion connection and weld at the connection point, so as to achieve the effect of quickly splicing multiple oil pipelines 1 to form a continuous and sealed transportation channel.

[0033] The collar 4 is fixedly connected to the side wall of the oil pipeline 1. The collar 4 provides a connecting base for bundling and external support of multiple oil pipelines 1, facilitating the cluster transportation, installation, and fixing of the pipelines. It also facilitates the bundling of multiple oil pipelines 1 and embeds an RFID chip inside. The RFID chip stores production information, specifications, and inspection records for that section of the oil pipeline 1, enabling rapid identification and information management via radio frequency technology, achieving the effect of tracking and maintaining the pipeline throughout its lifecycle. RFID radio frequency identification technology, consisting of a reader, RFID chip, and application software, is used for non-contact automatic identification and is existing technology, so it will not be elaborated further here.

[0034] The collar 4 has at least one bolt hole 6 inside for connecting to the external support frame. The bolt hole 6 can be fitted with bolts for insertion and locking, thereby fixing the collar 4 and the oil pipeline 1 to the external support frame, achieving the effect of stably installing the pipeline in the predetermined position, resisting environmental loads, and preventing pipeline displacement and vibration.

[0035] The outer circumferential wall of the collar 4 has at least one groove 7, and a fluorescent strip 8 is adhered inside. The fluorescent strip 8 is used to absorb and store light energy in low light conditions, and then emit light in the dark to mark the pipeline position, thereby providing clear visual guidance for nighttime inspection and maintenance operations and improving operational safety. The collar 4 has an annular groove 5 inside, which is used to fix the strip during binding. The annular groove 5 works with the strip to bind and fix it. The strip is embedded in the groove, thereby effectively preventing axial slippage during binding. This achieves the effect of tightly and neatly binding multiple oil pipelines 1 together, which is convenient for transportation and centralized laying.

[0036] Reference Figure 5The oil pipeline 1 comprises, from the inside out, a steel pipe body 101, an anti-corrosion layer 102, an insulation layer 103, an adhesive layer 104, and an outer protective layer 105, which are sequentially composited to achieve a comprehensive effect of pipeline structural support, corrosion prevention, insulation, and external protection. The anti-corrosion layer 102 is made of epoxy resin coating and is attached to the outer surface of the steel pipe body 101 to prevent corrosion of the steel pipe body 101, thereby avoiding the decrease in strength or perforation leakage caused by rust and extending the service life of the pipeline. The insulation layer 103 is made of polyurethane foam and is located outside the anti-corrosion layer 102 to reduce the heat generated by heat exchange between the pipeline and the external environment during transportation. The heat loss generated is reduced, thus maintaining the temperature stability of the oil during transportation. This reduces the phenomenon of increased viscosity and decreased fluidity due to cooling, ensuring transportation efficiency and saving energy. The adhesive layer 104 is located between the insulation layer 103 and the outer protective layer 105, and its purpose is to make the connection between the two tighter, thereby preventing relative sliding between layers and enhancing the overall structural strength of the pipeline. The outer protective layer 105 is set on the outermost layer of the oil pipeline 1 and is made of high-density polyethylene material. It has high mechanical strength, wear resistance and environmental stress cracking resistance, and is used to protect the internal anti-corrosion layer 102 and insulation layer 103 from physical impact, wear and environmental corrosion during use.

[0037] Working principle: When splicing two oil pipelines 1, the connector 2 connected to the end of one oil pipeline 1 can be inserted into the inner groove 3 opened inside the other oil pipeline 1. The connection between the two pipelines is then welded to ensure a firm connection. Subsequently, a support bracket can be used to support the oil pipeline 1. The bracket is connected to the collar 4 through the fit between the bolt and the bolt hole 6, thereby supporting the oil pipeline 1 and avoiding the impact on the outer wall of the oil pipeline 1 when welding the support, thus extending the service life of the oil pipeline 1. When the staff conducts subsequent maintenance, they can scan the RFID chip inside the oil pipeline 1 to view the production information, specifications, inspection records and other data of that section of the oil pipeline 1, so as to carry out subsequent maintenance work.

Claims

1. A corrosion-resistant and heat-insulating oil pipe, characterized in that, include: An oil pipeline (1) is made of a multi-layer composite structure. One end of the oil pipeline (1) is fixedly connected to a plug (2). The other end of the oil pipeline (1) has an inner groove (3) that is circumferentially opened inside. The inner groove (3) fits into the plug (2). The collar (4) is fixedly connected to the side wall of the oil pipeline (1) to facilitate the bundling of multiple oil pipelines (1) and has an RFID chip embedded inside. The collar (4) has at least one bolt hole (6) inside for connecting to the external support frame. The collar (4) has at least one groove (7) on its outer peripheral wall and has a fluorescent strip (8) attached inside.

2. The corrosion-resistant and heat-insulating oil pipe according to claim 1, characterized in that: The oil pipeline (1) comprises, from the inside out: a steel pipe body (101), an anti-corrosion layer (102), a heat insulation layer (103), an adhesive layer (104), and an outer protective layer (105).

3. The corrosion-resistant and heat-insulating oil pipe according to claim 2, characterized in that: The anti-corrosion layer (102) is made of epoxy resin coating, which is attached to the outer surface of the steel pipe body (101) to provide corrosion protection for the pipeline.

4. The corrosion-resistant and heat-insulating oil pipe according to claim 2, characterized in that: The insulation layer (103) is made of polyurethane foam and is located outside the anti-corrosion layer (102) to seal heat.

5. The corrosion-resistant and heat-insulating oil pipe according to claim 2, characterized in that: The adhesive layer (104) is located between the insulation layer (103) and the outer protective layer (105) to make the two more tightly connected.

6. The corrosion-resistant and heat-insulating oil pipe according to claim 2, characterized in that: The outer protective layer (105) is located on the outermost layer of the oil pipeline (1) and is made of high-density polyethylene material. It is used to provide protection for the anti-corrosion layer (102) and the insulation layer (103).

7. The corrosion-resistant and heat-insulating oil pipe according to claim 1, characterized in that: The collar (4) has an annular groove (5) inside, which is used to fix the strip during binding.

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