Buried gas engineering pipe

Abstract

The utility model relates to gas construction technical field especially is a kind of buried gas engineering pipe, including left unit pipe body and right unit pipe body, welding between left unit pipe body and right unit pipe body, the connecting place outside left unit pipe body and right unit pipe body is equipped with reinforcing connection structure;The reinforcing connection structure includes reinforcing rod and reinforcing cylinder, the connecting place outside left unit pipe body and right unit pipe body is equipped with reinforcing rod, and the both ends of reinforcing rod are respectively installed in the outside of left unit pipe body and the outside of right unit pipe body, the reinforcing cylinder is installed in the outside of reinforcing rod;In the utility model, by the spring pipe structure, left unit pipe body and right unit pipe body being set, standard pipe body is connected using spring pipe structure, effectively absorb the displacement caused by thermal expansion and cold shrinkage or foundation micro change, to reduce the impact of axial thrust to interface, improve overall flexibility and service life.

Description

Technical Field

[0001] This utility model relates to the field of gas construction technology, specifically to a buried gas pipeline. Background Technology

[0002] Buried gas pipelines, as an important component of urban infrastructure, are widely used for transporting gaseous media such as natural gas and coal gas. Traditional buried gas pipelines mainly use a single welded connection method, which is susceptible to geological subsidence, temperature changes, and external load impacts during long-term operation. This can lead to stress concentration, structural fatigue, and even damage or leakage at the pipe connection points. In addition, existing pipeline connection structures generally lack stress buffering and intelligent monitoring devices, resulting in poor maintenance and risk warning capabilities. Consequently, they fail to meet the comprehensive requirements of modern gas engineering for safety, reliability, and maintainability. Therefore, this paper proposes a new type of buried gas pipeline to address these issues. Utility Model Content

[0003] The purpose of this utility model is to provide a buried gas pipeline to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A buried gas pipeline includes a left unit pipe and a right unit pipe, wherein the left unit pipe and the right unit pipe are welded together, and a reinforcing connection structure is installed on the outside of the connection between the left unit pipe and the right unit pipe.

[0006] The reinforced connection structure includes a reinforcing rod and a reinforcing cylinder. A reinforcing rod is installed on the outside of the connection between the left unit tube and the right unit tube, and the two ends of the reinforcing rod are respectively installed on the outside of the left unit tube and the outside of the right unit tube. The reinforcing cylinder is installed on the outside of the reinforcing rod.

[0007] Preferably, a spring tube structure is installed on the side of the left unit tube away from the right unit tube and on the side of the right unit tube away from the left unit tube, and a standard tube is installed on the other side of the spring tube structure.

[0008] Preferably, there are multiple reinforcing rods, which are evenly installed on the outside of the left and right unit tubes. The cross-section of the reinforcing rod is arc-shaped, and the reinforcing rod is in contact with the left and right unit tubes.

[0009] Preferably, fixing bolts are installed on the outer side of both the left and right unit tubes, and the reinforcing rod is installed on the outer side of the left and right unit tubes through fixing bolts and fixing brackets.

[0010] Preferably, a fixing threaded ring is installed on the outer side of both the left and right unit tubes, and a reinforcing cylinder is spirally installed on the outer side of the threaded ring.

[0011] Preferably, the distance between the threaded rings on both sides is equal to the length of the reinforcing rod, and the two ends of the reinforcing rod are in contact with the inner side of the threaded ring.

[0012] Preferably, a strain gauge is provided on the outer side of the reinforcing cylinder, a mounting bracket is installed on one side of the strain gauge, and the strain gauge is connected to the cable of the pipeline. A fixing seat is installed on the inner side of both ends of the mounting bracket, and the fixing seat is fixed to the standard pipe body. A fixing ring is installed on the outer side of both ends of the mounting bracket.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. In this utility model, by setting a spring tube structure, a left unit tube body and a right unit tube body, the standard tube body is connected by the spring tube structure, which effectively absorbs the displacement caused by thermal expansion and contraction or slight changes in the foundation, thereby reducing the impact of axial thrust on the interface and improving the overall flexibility and service life.

[0015] 2. In this utility model, by setting up reinforcing rods and fixing bolts, the external load is distributed through multi-point fixing, so as to achieve balanced transmission of structural force and enhance the ability to resist external pressure.

[0016] 3. In this utility model, by setting strain gauges and mounting brackets, the external strain gauges are connected to the pipeline cable, which can collect pipeline stress change data in real time. Combined with the mounting bracket and fixing seat, the stress monitoring module can be stably fixed, thereby improving the intelligent safety monitoring capability of the buried pipeline system. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the reinforcing rod structure of this utility model;

[0019] Figure 3 This utility model Figure 2 A schematic diagram of the structure at point A;

[0020] Figure 4 This is a cross-sectional view of the present invention.

[0021] In the diagram: 1. Left unit tube; 2. Right unit tube; 3. Spring tube structure; 4. Standard tube; 5. Reinforcing rod; 6. Reinforcing cylinder; 7. Fixing bolt; 8. Threaded ring; 9. Strain gauge; 10. Mounting bracket; 11. Fixing seat; 12. Fixing ring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0024] Please see Figure 1-4 This utility model provides a technical solution:

[0025] A buried gas pipeline includes a left unit pipe body 1 and a right unit pipe body 2, which are welded together. A reinforcing connection structure is installed on the outside of the connection between the left unit pipe body 1 and the right unit pipe body 2. The reinforcing connection structure includes a reinforcing rod 5 and a reinforcing cylinder 6. The reinforcing rod 5 is installed on the outside of the connection between the left unit pipe body 1 and the right unit pipe body 2, with its two ends installed on the outside of the left unit pipe body 1 and the right unit pipe body 2, respectively. The reinforcing cylinder 6 is installed on the outside of the reinforcing rod 5. This solution improves the mechanical strength of the connection by welding the left unit pipe body 1 and the right unit pipe body 2 together and adding a reinforcing connection structure (reinforcing rod 5 and reinforcing cylinder 6) on the outside. It also enhances the stability and resistance to external pressure at the interface, making it suitable for use in complex buried environments.

[0026] A spring tube structure 3 is installed on the side of the left unit pipe body 1 away from the right unit pipe body 2 and on the side of the right unit pipe body 2 away from the left unit pipe body 1. A standard pipe body 4 is installed on the other side of the spring tube structure 3. By connecting the standard pipe body 4 and the spring tube structure 3 at both ends, axial stress caused by geological settlement or temperature changes can be effectively absorbed, improving the overall flexibility of the pipeline, reducing the risk of damage to the welded parts, and enhancing the long-term reliability of the buried gas pipeline. There are multiple reinforcing rods 5, which are evenly installed on the outside of the left unit pipe body 1 and the right unit pipe body 2. The cross-section of the reinforcing rod 5 is arc-shaped. The reinforcing rods 5 are arranged in a circular shape and are attached to the left unit pipe body 1 and the right unit pipe body 2. Multiple arc-shaped reinforcing rods 5 are used, attached to the pipe surface, which enhances the overall structural strength of the pipe joint, improves the uniformity of stress distribution, reduces point stress concentration, and improves seismic and compressive strength. Fixing bolts 7 are installed on the outer sides of both the left unit pipe body 1 and the right unit pipe body 2. The reinforcing rods 5 are installed on the outer sides of the left unit pipe body 1 and the right unit pipe body 2 through the fixing bolts 7 and the fixing bracket. The fixing bolts 7 firmly connect the reinforcing rods 5 to the pipe body, and the fixing bracket helps prevent the reinforced structure from collapsing during long-term operation. If loosening or displacement occurs, fixed threaded rings 8 are installed on the outer sides of both the left unit pipe body 1 and the right unit pipe body 2. A reinforcing cylinder 6 is spirally installed on the outer side of the threaded ring 8. This fixed threaded ring structure allows the reinforcing cylinder 6 to be screwed onto the outside of the pipe, facilitating replacement and maintenance. The threaded connection further enhances sealing and structural strength. The distance between the threaded rings 8 on both sides is equal to the length of the reinforcing rod 5, and both ends of the reinforcing rod 5 are fitted against the inner side of the threaded rings 8. By ensuring that the length of the reinforcing rod 5 is equal to the distance between the threaded rings 8 on both sides and that they fit together, the overall structural integrity is improved. To ensure that the reinforcing structure can effectively transfer stress and be fixed to the pipe surface, strain gauges 9 are provided on the outside of the reinforcing cylinder 6. A mounting bracket 10 is installed on one side of the strain gauge 9, and the strain gauge 9 is connected to the cable of the pipeline. Fixing seats 11 are installed on the inner sides of both ends of the mounting bracket 10, and the fixing seats 11 are fixed to the standard pipe body 4. Fixing rings 12 are installed on the outer sides of both ends of the mounting bracket 10. The strain gauge 9 and cable connection structure are integrated on the outside of the reinforcing cylinder 6, which can monitor the stress state of the connection part in real time. Combined with the mounting bracket and fixing seats, precise positioning and stable installation are achieved, providing data-driven safety monitoring for buried gas pipelines.

[0027] Workflow: First, the left unit pipe body 1 and the right unit pipe body 2 are welded together to form a complete gas passage. A reinforcing connection structure is installed outside the interface, including multiple reinforcing rods 5 evenly distributed along the outer arc of the pipe body and fixed to the outer shell of the pipe body by fixing brackets 7. Then, reinforcing cylinders 6 are fitted on the outside of the reinforcing rods 5. The reinforcing cylinders 6 can be tightened and fixed by fixing threaded rings 8, while ensuring that the two ends of the reinforcing cylinders 6 are tightly fitted to the two ends of the reinforcing rods 5. For the left and right ends away from the interface, spring tube structures 3 are installed to alleviate the axial displacement of the pipeline caused by thermal expansion and contraction or geological stress during operation. The end of the spring tube structure 3 is connected to the standard pipe body 4 to complete the interface conversion of the standard section of the pipeline system. Strain gauges 9 are installed on the outside of the reinforcing cylinder 6 and fixed to the standard pipe body 4 by mounting brackets 10. The mounting brackets have fixing seats 11 and fixing rings 12 at both ends for auxiliary positioning and cable laying. The strain gauges 9 are connected to the cables laid with the pipeline to realize real-time detection and remote monitoring of the stress state of the gas pipeline interface.

[0028] Contents not described in detail in this specification are existing technologies known to those skilled in the art. Standard parts used in this invention can all be purchased commercially, and irregularly shaped parts can be custom-made according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are already mature technologies. The machinery, parts, and equipment all use conventional models from the prior art, and the circuit connections also employ conventional connection methods from the prior art, which will not be detailed here.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A buried gas engineering pipe comprising a left unit pipe body (1) and a right unit pipe body (2), characterized in that: The left unit tube (1) and the right unit tube (2) are welded together, and a reinforcing connection structure is installed on the outside of the connection between the left unit tube (1) and the right unit tube (2); The reinforced connection structure includes a reinforcing rod (5) and a reinforcing cylinder (6). A reinforcing rod (5) is installed on the outside of the connection between the left unit tube (1) and the right unit tube (2), and the two ends of the reinforcing rod (5) are respectively installed on the outside of the left unit tube (1) and the outside of the right unit tube (2). The reinforcing cylinder (6) is installed on the outside of the reinforcing rod (5).

2. A buried gas engineering pipe according to claim 1, characterized in that: A spring tube structure (3) is installed on the side of the left unit tube (1) away from the right unit tube (2) and on the side of the right unit tube (2) away from the left unit tube (1), and a standard tube (4) is installed on the other side of the spring tube structure (3).

3. A buried gas engineering pipe according to claim 1, characterized in that: The number of reinforcing rods (5) is multiple, and the reinforcing rods (5) are evenly installed on the outside of the left unit tube (1) and the right unit tube (2). The cross-section of the reinforcing rods (5) is arc-shaped, and the reinforcing rods (5) are attached to the left unit tube (1) and the right unit tube (2).

4. A buried gas engineering pipe according to claim 3, characterized in that: Fixing bolts (7) are installed on the outer side of the left unit tube (1) and the outer side of the right unit tube (2). The reinforcing rod (5) is installed on the outer side of the left unit tube (1) and the right unit tube (2) by fixing bolts (7) and fixing bracket.

5. A buried gas pipeline according to claim 1, characterized in that: The left unit tube (1) and the right unit tube (2) are both equipped with a fixed threaded ring (8), and a reinforcing cylinder (6) is spirally installed on the outside of the threaded ring (8).

6. A buried gas pipeline according to claim 5, characterized in that: The distance between the threaded rings (8) on both sides is equal to the length of the reinforcing rod (5), and the two ends of the reinforcing rod (5) are in contact with the inner side of the threaded rings (8).

7. A buried gas pipeline according to claim 1, characterized in that: The outer side of the reinforcing cylinder (6) is provided with a strain gauge (9), and a mounting bracket (10) is installed on one side of the strain gauge (9). The strain gauge (9) is connected to the cable of the pipeline. Fixing seats (11) are installed on the inner sides of both ends of the mounting bracket (10), and the fixing seats (11) are fixed to the standard pipe body (4). Fixing rings (12) are installed on the outer sides of both ends of the mounting bracket (10).

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