Oil and gas pipeline warming structure

Abstract

The utility model discloses an oil and gas pipeline temperature increasing structure, and relates to the technical field of oil and gas conveying pipelines, the oil and gas pipeline temperature increasing structure comprises a pipeline body, a protection assembly is arranged in the pipeline body, the protection assembly comprises a protection outer pipe installed in the pipeline body, and a protection inner pipe is arranged in the protection outer pipe; mounting pipe sleeves are symmetrically and fixedly connected to the two ends of the protective outer pipe, and a plurality of connecting assemblies are arranged between the protective outer pipe and the protective inner pipe. According to the oil and gas pipeline temperature increasing structure, the protection assembly is arranged, the protection outer pipe and the protection inner pipe are both made of polyethylene materials, the inner wall of the pipeline body can be effectively prevented from making contact with air, the possibility that the pipeline is corroded is reduced, and the service life of the oil and gas pipeline is prolonged; and the hollow gap is formed between the protective outer pipe and the protective inner pipe, so that a heat insulation layer is formed while certain flexibility is achieved, the temperature loss speed is reduced, and the purpose of increasing the temperature of the output end is achieved.

Description

Technical Field

[0001] This utility model relates to the field of oil and gas pipeline technology, and in particular to a heating structure for oil and gas pipelines. Background Technology

[0002] During the transportation of oil and gas resources, oil and gas pipelines are usually buried underground. In some oil and gas pipelines with insufficient burial depth, the initial temperature will decrease as the transportation length increases, which will make the transported medium more viscous, reduce its fluidity, and reduce transportation efficiency. In addition, oil and gas pipelines are usually made of steel, and the inner wall of the steel pipe is in direct contact with the air, which is prone to corrosion. This not only poses safety hazards but also contaminates the transported medium. Utility Model Content

[0003] This utility model discloses a heating structure for oil and gas pipelines, which aims to solve the problems of poor insulation effect, easy heat loss, and reduced temperature of the transported medium in existing oil and gas pipelines, resulting in poor flowability of oil and gas.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A heating structure for an oil and gas pipeline includes a pipeline body, wherein a protective component is provided inside the pipeline body.

[0006] The protective assembly includes a protective outer tube installed inside the pipe body, a protective inner tube inside the protective outer tube, mounting sleeves symmetrically fixed to both ends of the protective outer tube, and several sets of connecting components between the protective outer tube and the protective inner tube.

[0007] In a preferred embodiment, the surface of the mounting sleeve is fitted with a ring-shaped array of balls, and the surface of the mounting sleeve has ball sockets that match the balls.

[0008] The ball bearings roll along the inner wall of the pipe body, improving the ease of installation of the inner pipe and reducing friction between the outer protective pipe and the inner wall of the pipe body, thus extending the service life of the outer protective pipe.

[0009] In a preferred embodiment, a ring-shaped heating band is fixedly installed inside the mounting sleeve, and a sealing strip is fixed inside the mounting sleeve on the side near the heating band.

[0010] By energizing the heating band, the heating wire inside the heating band heats the sealing strip, causing the sealing strip to expand and adhere tightly to the inner wall of the pipe body, thus fixing the protective outer tube to the inner wall of the pipe body.

[0011] In a preferred embodiment, the inner protective tube is internally fixedly connected with several sets of guide strips arranged in a spiral pattern.

[0012] It can guide oil and gas to form a certain vortex, improving the mixing effect of the transported medium inside the oil and gas pipeline.

[0013] In a preferred embodiment, the connecting assembly includes a connecting plate with a ring structure fixedly connected to the surface of the inner protective tube near the outer protective tube. A movable plate with a ring structure is slidably connected inside the connecting plate. The end of the movable plate away from the inner protective tube is connected to the outer protective tube. Several sets of shock-absorbing damping are fixedly connected between the movable plate and the connecting plate.

[0014] In a preferred embodiment, the movable plate has a T-shaped cross-section, and the connecting plate has a T-shaped sliding groove on the side near the movable plate inside.

[0015] When oil and gas media flow inside the pipeline, the protective inner pipe will be driven by the impact force to make the connecting plate slide on the surface of the movable plate. The vibration is buffered by shock absorption and damping, which reduces the impact of vibration on the pipeline body and improves the service life of the pipeline.

[0016] As can be seen from the above, the oil and gas pipeline heating structure provided by this utility model has the following technical effects.

[0017] Firstly, both the outer and inner protective tubes are made of polyethylene. The outer protective tube is attached to the inner wall of the pipeline body, which can effectively isolate the inner wall of the pipeline body from contact with air, reduce the possibility of pipeline corrosion, and extend the service life of oil and gas pipelines. In addition, there is a hollow gap between the outer and inner protective tubes, which allows it to form a heat insulation layer while having a certain degree of flexibility, reducing the rate of temperature loss and effectively isolating the influence of external low temperature on the transported medium, thereby achieving the purpose of increasing the temperature at the output end.

[0018] Secondly, during the installation of the protective outer pipe, the heating belt heats the sealing strip, causing the sealing strip to expand and adhere tightly to the inner wall of the pipe body. This quickly fixes the protective outer pipe inside the pipe body. Through shock absorption and damping, it can absorb the impact force generated when oil and gas media flow inside the pipe, reduce the impact of vibration on the pipe body, ensure the stability of the pipe body during use, and improve the service life of the pipe. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of a heating structure for oil and gas pipelines proposed in this utility model.

[0020] Figure 2 This is a schematic diagram of the installation of a pipe sleeve in an oil and gas pipeline heating structure proposed in this utility model;

[0021] Figure 3This is a cross-sectional view of the pipe sleeve installed in the heating structure for oil and gas pipelines proposed in this utility model.

[0022] Figure 4 This utility model proposes a heating structure for oil and gas pipelines. Figure 3 Enlarged structural diagram at point A in the middle;

[0023] Figure 5 This utility model proposes a heating structure for oil and gas pipelines. Figure 3 Enlarged structural diagram at point B.

[0024] In the attached diagram: 1. Pipe body; 2. Protective outer pipe; 3. Protective inner pipe; 4. Installation sleeve; 5. Ball bearing; 6. Flow guide strip; 7. Heating strip; 8. Sealing strip; 9. Connecting assembly; 91. Connecting plate; 92. Movable plate; 93. Vibration damping. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Reference Figures 1-4 It includes the pipe body 1, and the pipe body 1 is equipped with protective components inside;

[0027] The protective assembly includes an outer protective pipe 2 installed inside the pipe body 1, an inner protective pipe 3 installed inside the outer protective pipe 2, and mounting sleeves 4 symmetrically fixed to both ends of the outer protective pipe 2. Several sets of connecting components 9 are provided between the outer protective pipe 2 and the inner protective pipe 3.

[0028] Both the outer protective tube 2 and the inner protective tube 3 are made of polyethylene. By installing the outer protective tube 2 and the inner protective tube 3 inside the pipe body 1 and fitting the outer protective tube 2 to the inner wall of the pipe body 1, the inner wall of the pipe body 1 can be effectively isolated from air, reducing the possibility of pipe corrosion and extending the service life of the oil and gas pipeline. In addition, there is a hollow gap between the outer protective tube 2 and the inner protective tube 3, which allows it to form a heat insulation layer while having a certain degree of flexibility, reducing the rate of temperature loss and effectively isolating the influence of external low temperature on the transported medium, thereby achieving the purpose of increasing the temperature at the output end.

[0029] The surface of the mounting sleeve 4 is equipped with a ring array of balls 5. The surface of the mounting sleeve 4 is provided with ball sockets that match the balls 5. During installation, the outer protective tube 2 and the inner protective tube 3 are pushed into the interior of the pipe body 1 by a retraction machine. During this period, the balls 5 will roll on the inner wall of the pipe body 1, which improves the convenience of inner tube installation and reduces friction between the outer protective tube 2 and the inner wall of the pipe body 1, thereby improving the service life of the outer protective tube 2.

[0030] An annular heating band 7 is fixedly installed inside the mounting sleeve 4. A sealing band 8 is fixed inside the mounting sleeve 4 near the heating band 7. The sealing band 8 is made of thermosetting plastic. After the protective outer tube 2 is installed, the heating band 7 is energized. The heating wire inside the heating band 7 heats the sealing band 8, causing the sealing band 8 to expand and adhere tightly to the inner wall of the pipe body 1. This fixes the protective outer tube 2 to the inner wall of the pipe body 1, and provides a good sealing effect, effectively reducing the corrosion impact on the inner wall of the pipe body 1.

[0031] The inner protective pipe 3 is fixedly connected with several sets of spirally arranged guide strips 6, which can guide oil and gas to form a certain vortex and improve the mixing effect of the medium transported inside the oil and gas pipeline.

[0032] Reference Figure 4 and Figure 5 In a preferred embodiment, the connecting assembly 9 includes a connecting plate 91 fixedly connected to the surface of the inner protective tube 3 near the outer protective tube 2 and having an annular structure. A movable plate 92 with an annular structure is slidably connected inside the connecting plate 91. The end of the movable plate 92 away from the inner protective tube 3 is connected to the outer protective tube 2. Several sets of shock-absorbing damping 93 are fixedly connected between the movable plate 92 and the connecting plate 91. The shock-absorbing damping 93 can absorb the impact force on the inner wall of the pipeline during oil and gas transportation, buffer the vibration impact on the pipeline body 1, and improve the stability of the pipeline body 1 installation.

[0033] The movable plate 92 has a T-shaped cross section. The connecting plate 91 has a T-shaped sliding groove on the side near the movable plate 92. When the inner protective tube 3 is vibrated, the movable plate 92 will slide inside the connecting plate 91. The movable plate 92 has a T-shaped cross section, which ensures the connection effect between the outer protective tube 2 and the inner protective tube 3.

[0034] Working principle: During installation, the protective outer tube 2 is pushed into the interior of the pipeline body 1 by a retractor. The ball bearings 5 ​​roll on the inner wall of the pipeline body 1, ensuring the stability of the movement of the protective outer tube 2. After the protective outer tube 2 is installed, the heating belt 7 heats the sealing belt 8, causing it to expand and adhere tightly to the inner wall of the pipeline body 1. This allows the protective outer tube 2 to be quickly installed inside the pipeline body 1, effectively isolating the inner wall of the pipeline body 1 from air, reducing the possibility of pipeline corrosion, and extending the service life of the oil and gas pipeline. Furthermore, the protective outer tube 2 and the protective inner tube 3 form a heat insulation layer, reducing the rate of temperature loss and effectively isolating the external low temperature from the transported medium. Through the connection component 9, when the oil and gas medium flows inside the pipeline, the protective inner tube 3 is impacted, causing the connecting plate 91 to slide on the surface of the movable plate 92. The vibration is buffered by the shock-absorbing damper 93, reducing the impact of vibration on the pipeline body 1 and improving the pipeline's service life.

[0035] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Substitutions may include replacements for some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the scope of protection of this utility model.

Claims

1. A heating structure for oil and gas pipelines, characterized in that, It includes a pipe body (1), and a protective component is provided inside the pipe body (1); The protective assembly includes a protective outer tube (2) installed inside the pipe body (1), a protective inner tube (3) is provided inside the protective outer tube (2), and installation sleeves (4) are symmetrically fixedly connected to both ends of the protective outer tube (2). Several sets of connecting components (9) are provided between the protective outer tube (2) and the protective inner tube (3).

2. The oil and gas pipeline heating structure according to claim 1, characterized in that, The surface of the mounting sleeve (4) is fitted with a ring array of balls (5), and the surface of the mounting sleeve (4) is provided with a ball socket that matches the balls (5).

3. The oil and gas pipeline heating structure according to claim 1, characterized in that, A ring-shaped heating band (7) is fixedly installed inside the mounting sleeve (4), and a sealing band (8) is fixed inside the mounting sleeve (4) on the side close to the heating band (7).

4. The oil and gas pipeline heating structure according to claim 1, characterized in that, The inner protective tube (3) is internally fixedly connected with several sets of spirally arranged guide strips (6).

5. The oil and gas pipeline heating structure according to claim 1, characterized in that, The connecting assembly (9) includes a connecting plate (91) fixedly connected to the surface of the inner protective tube (3) near the outer protective tube (2) and having an annular structure. A movable plate (92) with an annular structure is slidably connected inside the connecting plate (91). One end of the movable plate (92) away from the inner protective tube (3) is connected to the outer protective tube (2). Several sets of shock-absorbing damping (93) are fixedly connected between the movable plate (92) and the connecting plate (91).

6. The oil and gas pipeline heating structure according to claim 5, characterized in that, The movable plate (92) has a T-shaped cross section, and the connecting plate (91) has a T-shaped sliding groove on the side near the movable plate (92).

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