Natural gas pipeline butt joint device

Abstract

A natural gas pipeline butt joint device comprises a first pipeline, a second pipeline and a butt joint device, positioning rings are arranged at the positions, close to connecting ports, of the outer rings of the first pipeline and the second pipeline respectively, and the butt joint device is arranged at the joint of the ports of the first pipeline and the second pipeline and composed of a first connecting plate and a second connecting plate. The first pipeline is movably sleeved with the first connecting plate, the second pipeline is movably sleeved with the second connecting plate, the first connecting plate is located on the side, away from a port of the first pipeline, of the positioning ring and abuts against the positioning ring, and the second connecting plate is located on the side, away from a port of the second pipeline, of the positioning ring and abuts against the positioning ring; the first connecting plate and the second connecting plate are connected through bolts, four positioning grooves surrounding the first connecting plate are formed in the first connecting plate, a protection plate surrounding the second connecting plate is arranged in the second connecting plate, and one end of the protection plate is inserted into the positioning grooves. The device has the advantages of being convenient to carry, improving the protection effect and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of natural gas pipeline installation, in particular to a natural gas pipeline docking device. Background Art

[0002] A natural gas pipeline, also known as a gas transmission pipeline, is a pipeline that transports natural gas (including associated gas from oil fields) from extraction sites or processing plants to urban distribution centers or industrial users. To ensure safety, natural gas pipelines are manufactured under stringent regulations. Due to their long lengths, the laying of natural gas pipelines often requires several connecting pipes.

[0003] However, most natural gas pipelines in the existing technology are metal pipes, and flanges are used to connect multiple pipelines. Since the flanges at both ends of the natural gas pipeline are heavy and easily wear out during transportation, affecting the later sealing performance, when the pipeline is exposed to the outside, the connection of the flange is exposed to air and rain for a long time, which is prone to leakage. Therefore, the connection needs to be covered after the connection is completed, which reduces work efficiency. Therefore, there is room for improvement. Utility Model Content

[0004] The utility model provides a natural gas pipeline docking device to solve the problems raised in the background technology.

[0005] In order to solve the above problems, the present invention provides a natural gas pipeline docking device, including a first pipeline, a second pipeline, and a docking device, wherein the outer rings of the first pipeline and the second pipeline are respectively provided with a positioning ring near the connection port, the docking device is provided at the port connection of the first pipeline and the second pipeline, the docking device is composed of a first connecting plate and a second connecting plate, the first connecting plate is movably sleeved on the first pipeline, and the second connecting plate is movably sleeved on the second pipeline, the first connecting plate is located on the side of the positioning ring away from the first pipeline port and conflicts with the positioning ring, the second connecting plate is located on the side of the positioning ring away from the second pipeline port and conflicts with the positioning ring, the four corners of the first connecting plate and the second connecting plate are symmetrically provided with connecting holes, and the first connecting plate and the second connecting plate are connected by bolts inserted through the connecting holes, the first connecting plate is provided with four surrounding positioning grooves, the second connecting plate is provided with a protective plate surrounding the second connecting plate, and the end of the protective plate away from the second connecting plate is inserted into the positioning groove in the first connecting plate.

[0006] Preferably, a socket for connecting the second pipe is provided at the port of the first pipe.

[0007] Preferably, the connection holes in the first connection plate and the second connection plate are located on the inner side of the protective plate.

[0008] The beneficial effects of adopting the above technical solution are:

[0009] 1. By not setting flanges at the connection ports of the first and second pipelines, the weight of the pipelines is reduced, making it easier to carry, while also preventing the wear of the flanges from affecting the sealing performance in the later stage.

[0010] 2. The second pipe is inserted into the first pipe through the socket to improve the stability and sealing of the connection between the two pipes. The first connecting plate and the second connecting plate are fixed by bolts, and then pulled with the positioning ring to make the connection between the first pipe and the second pipe more stable.

[0011] 3. By inserting the protective plate into the positioning groove, a protective cavity is formed between the first connecting plate and the second connecting plate, thereby protecting the connection port and the bolts to prevent the connection port and the bolts from being exposed to the outside, thereby ensuring stability and sealing after connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0013] Figure 2 It is a schematic diagram of the explosion three-dimensional structure of the utility model.

[0014] Among them: 1-first pipe; 2-second pipe; 21-socket; 3-docking device; 31-first connecting plate; 311-positioning groove; 32-second connecting plate; 321-protective plate; 33-connecting hole; 34-bolt; 4-positioning ring. DETAILED DESCRIPTION

[0015] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0016] In the description of this utility model, unless otherwise specified, "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction, and therefore should not be construed as limiting this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0017] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, movable connections, or integral connections; they can refer to mechanical connections or electrical connections; and they can refer to direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0018] like Figure 1-2 In this embodiment, a natural gas pipeline docking device includes a first pipeline 1, a second pipeline 2, and a docking device 3. The outer rings of the first pipeline 1 and the second pipeline 2 are respectively provided with a positioning ring 4 near the connection port. The docking device 3 is provided at the port connection of the first pipeline 1 and the second pipeline 2. The docking device 3 is composed of a first connecting plate 31 and a second connecting plate 32. The first connecting plate 31 is movably mounted on the first pipeline 1, and the second connecting plate 32 is movably mounted on the second pipeline 2. The first connecting plate 31 is located on the side of the positioning ring 4 farthest from the port of the first pipeline 1 and conflicts with the positioning ring 4. The second connecting plate 32 is located on the side of the positioning ring 4 away from the port of the second pipe 2, and conflicts with the positioning ring 4. The four corners of the first connecting plate 31 and the second connecting plate 32 are symmetrically provided with connecting holes 33, and the first connecting plate 31 and the second connecting plate 32 are connected by bolts 34 inserted through the connecting holes 33. The first connecting plate 31 is provided with four surrounding positioning grooves 311, and the second connecting plate 32 is provided with a protective plate 321 surrounding the second connecting plate 32, and the end of the protective plate 321 away from the second connecting plate 32 is inserted into the positioning groove 311 in the first connecting plate 31.

[0019] Through the above technical solution, when in use, the first connecting plate 31 and the second connecting plate 32 are respectively sleeved on the first pipe 1 and the second pipe 2. Since there is no flange on the first pipe 1 and the second pipe 2, the weight is reduced and it is convenient to carry. At the same time, it is avoided that the flange is damaged and the sealing is affected by transportation. Then, the port of the second pipe 2 is inserted into the first pipe 1 to complete the preliminary docking, and then the protective plate 321 in the second connecting plate 32 is inserted into the positioning groove 311 of the first connecting plate 31 to form a protective cavity for protecting the connection port of the first pipe 1 and the second pipe 2. At this time, the bolt 34 is inserted through the The connecting holes 33 in the first connecting plate 31 and the second connecting plate 32 fix the first connecting plate 31 and the second connecting plate 32. The first connecting plate 31 contacts the positioning ring 4 on the first pipe 1, and the second connecting plate 32 contacts the positioning ring 4 on the second pipe 2. Then, the connection between the first pipe 1 and the second pipe 2 is positioned by positioning the first connecting plate 31 and the second connecting plate 32 to ensure stability and sealing after connection. The protective cavity formed by the protective plate 321 can protect the connection port, thereby avoiding damage to the connection port due to exposure to the outside and causing leakage.

[0020] Preferably, a socket 21 for connecting to the first pipe 1 is provided at the end of the second pipe 2 .

[0021] Through the above technical solution, the socket 21 of the second pipe 2 is inserted into the first pipe 1, thereby improving the sealing performance of the connection between the first pipe 1 and the second pipe 2.

[0022] Preferably, the connection holes 33 in the first connection plate 31 and the second connection plate 32 are located on the inner side of the protective plate 321 .

[0023] Through the above technical solution, the connecting hole 33 is located on the inner side of the protective plate 321, thereby ensuring that the bolt 34 is located in the protective cavity formed by the protective plate 321, thereby preventing the bolt 34 from being completely exposed to the outside and causing damage or rust, thereby ensuring the stability of the bolt 34 connecting the first connecting plate 31 and the second connecting plate 32, thereby ensuring the stability of the first pipe 1 and the second pipe 2 after connection, and facilitating the loading and unloading of the bolt 34.

[0024] Finally, it should be noted that the above implementation cases are only used to illustrate the present invention, rather than to limit the technical solutions described in the present invention; therefore, although this specification has described the present invention in detail with reference to the above-mentioned embodiments, ordinary technicians in this field should understand that the present invention can still be modified or replaced by equivalents, and all technical solutions and improvements that do not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention; the technologies not described in detail in the present invention are implemented with existing technologies.

Claims

1. A natural gas pipeline docking device, comprising a first pipeline, a second pipeline, and a docking device, characterized in that: The outer rings of the first pipe and the second pipe are respectively provided with a positioning ring near the connection port, and the docking device is provided at the port connection of the first pipe and the second pipe, and the docking device is composed of a first connecting plate and a second connecting plate, the first connecting plate is movably sleeved on the first pipe, and the second connecting plate is movably sleeved on the second pipe, the first connecting plate is located on the side of the positioning ring away from the first pipe port and conflicts with the positioning ring, the second connecting plate is located on the side of the positioning ring away from the second pipe port and conflicts with the positioning ring, the four corners of the first connecting plate and the second connecting plate are symmetrically provided with connecting holes, and the first connecting plate and the second connecting plate are connected by bolts inserted through the connecting holes, the first connecting plate is provided with four surrounding positioning grooves, the second connecting plate is provided with a protective plate surrounding the second connecting plate, and the end of the protective plate away from the second connecting plate is inserted into the positioning groove in the first connecting plate.

2. A natural gas pipeline docking device according to claim 1, characterized in that: A socket for plugging in the second pipe is provided at the port of the first pipe.

3. The natural gas pipeline docking device according to claim 1, characterized in that: The connection holes in the first connection plate and the second connection plate are located on the inner side of the protective plate.

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