Natural gas conveying pipeline

Abstract

The utility model discloses a natural gas conveying pipeline, and particularly relates to the technical field of pipeline installation and connection, the natural gas conveying pipeline comprises a first pipeline and a second pipeline, and the outer parts of the opposite ends of the first pipeline and the second pipeline are respectively and fixedly provided with a limiting ring; the inner ends of the two sides of the connecting sleeve are each provided with a limiting clamping groove. And two movable limiting plates are arranged in the fixing frames. The connecting sleeve is used for protecting the joint of the first pipeline and the second pipeline, and the movable limiting plate is used for limiting and fixing the limiting rings on the first pipeline and the second pipeline, so that the connecting and fixing process of the first pipeline and the second pipeline is more convenient, and the connecting and fixing efficiency is higher; and the threaded rod for adjusting the position of the movable limiting plate is located in the fixing frame, so that the phenomenon of corrosion breakage is effectively avoided, the first pipeline and the second pipeline can be kept in sealed connection, and the connecting and fixing effects are good.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline installation connection technical field, concretely relates to a natural gas conveying pipeline. BACKGROUND

[0002] Natural gas pipeline refers to the pipeline that transports natural gas (including associated gas produced in oil field) from mining place or treatment plant to city gas distribution center or industrial enterprise user, also called gas pipeline. Natural gas is transported by using natural gas pipeline, which is a way of transporting natural gas on land.

[0003] At present, when the natural gas conveying pipeline is installed and connected, the connecting part of the natural gas conveying pipeline is mostly connected and fixed by multiple bolts, the connecting efficiency is low, and the bolts are exposed for a long time and prone to corrosion and fracture, which is not conducive to the connection and sealing between the pipelines. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a natural gas conveying pipeline to solve the above problems in the prior art.

[0005] In order to realize the above purpose, the utility model provides the following technical scheme: a natural gas conveying pipeline, comprising:

[0006] The first pipeline and the second pipeline are fixed with a limiting ring outside the end facing each other.

[0007] The connecting sleeve is arranged outside the connecting part of the first pipeline and the second pipeline, the connecting sleeve is provided with a limiting clamping groove inside the two sides, and the two limiting rings are arranged inside the two limiting clamping grooves respectively.

[0008] The two fixed frames are fixed at the top end and the bottom end of the connecting sleeve respectively, the fixed frame is provided with two movable limiting plates inside, the top end and the bottom end of the connecting sleeve are provided with two communication ports, one end of the movable limiting plate extends to the outside of the limiting ring through the communication port, the other end of the two movable limiting plates is fixed with a connecting plate, the top end and the bottom end of the connecting sleeve are rotatably connected with a threaded rod, one end of the threaded rod passes through the connecting plate and the fixed frame and is rotatably connected with the fixed frame, and the threaded rod and the connecting plate are connected through threads.

[0009] Preferably, the outer side surface of the limiting ring and the inner side surface of one end of the movable limiting plate are arc surfaces, so that the movable limiting plate can extrude and move the limiting ring.

[0010] Preferably, one end of the threaded rod is fixed with a rotating block, so that the threaded rod can be driven to rotate.

[0011] Preferably, a guide sliding slot is arranged in each of the two side walls inside the fixed frame, a guide sliding block is fixedly arranged on each side of the connecting plate, and the guide sliding block is arranged in the guide sliding slot, so as to guide the connecting plate and the movable limiting plate.

[0012] Preferably, a groove is arranged in the middle of the inner end of the connecting sleeve, a first sealing gasket is fixedly arranged in the groove, the first sealing gasket is arranged at the outer end of the connecting position of the first pipeline and the second pipeline, a second sealing gasket is fixedly arranged in the inner end of the first sealing gasket, and the second sealing gasket is arranged between the two ends of the first pipeline and the second pipeline, so as to seal the connecting position of the first pipeline and the second pipeline.

[0013] Preferably, the first sealing gasket and the second sealing gasket are T-shaped in cross section.

[0014] Preferably, a third sealing gasket is fixedly arranged on the inner wall of the limiting clamping groove, and the third sealing gasket is in contact with the inner side of the limiting ring, so as to seal the contact position of the limiting ring and the limiting clamping groove and improve the overall sealing performance.

[0015] In the above technical solution, the technical effects and advantages of the utility model are as follows:

[0016] The connecting sleeve is used to protect the connecting position of the first pipeline and the second pipeline, and the movable limiting plate is used to limit and fix the limiting ring on the first pipeline and the second pipeline, so that the connecting and fixing process of the first pipeline and the second pipeline is convenient, the efficiency of the connecting and fixing is high, the threaded rod for adjusting the position of the movable limiting plate is arranged in the fixed frame, the rusting and breaking phenomenon is effectively avoided, the first pipeline and the second pipeline can be kept in sealed connection, and the effect of the connecting and fixing is good. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments described in the utility model, and other drawings can be obtained by those skilled in the art according to these drawings.

[0018] Figure 1 It is a whole structure schematic view of the utility model;

[0019] Figure 2 It is a whole three-dimensional sectional structure schematic view of the utility model;

[0020] Figure 3 It is a first pipeline, a second pipeline and a limiting ring three-dimensional structure schematic view of the utility model;

[0021] Figure 4 It is a connecting sleeve three-dimensional sectional structure schematic view of the utility model;

[0022] Figure 5 It is the fixed frame three-dimensional section view structure schematic diagram of the utility model.

[0023] Mark explanation:

[0024] 1, first pipeline;2, second pipeline;3, limit ring;4, connecting sleeve;5, limit card slot;6, fixed frame;7, movable limit plate;8, communication port;9, connecting plate;10, threaded rod;11, rotating block;12, guide sliding slot;13, guide sliding block;14, groove;15, first sealing gasket;16, second sealing gasket;17, third sealing gasket. Specific implementation

[0025] In order to make those skilled in the art better understand the technical scheme of the utility model, the utility model will be further introduced in detail below in conjunction with the drawings.

[0026] The utility model provides a kind of natural gas conveying pipeline, comprising: Figures 1 to 5

[0027] First pipeline 1 and second pipeline 2, first pipeline 1 and second pipeline 2 are fixed with one limit ring 3 in the outside of one end of opposite direction;

[0028] Connecting sleeve 4, connecting sleeve 4 is equipped at the connecting place outer end of first pipeline 1 and second pipeline 2, and one limit card slot 5 is formed in the inner end of the two sides of connecting sleeve 4, and two limit rings 3 are respectively arranged in the inside of two limit card slots 5;

[0029] Two fixed frames 6, two fixed frames 6 are respectively fixed at the top end and bottom end of connecting sleeve 4, and two movable limit plates 7 are arranged in the inside of fixed frame 6, two communication ports 8 are formed in the top end and bottom end of connecting sleeve 4, one end of movable limit plate 7 passes through communication port 8 and extends to the outside of limit ring 3, the outside surface of limit ring 3 and the inside surface of one end of movable limit plate 7 are arc surfaces, one connecting plate 9 is fixed at the other end of two movable limit plates 7, one threaded rod 10 is rotatably connected to the top end and bottom end of connecting sleeve 4, one end of threaded rod 10 passes through connecting plate 9 and fixed frame 6 and is rotatably connected between fixed frame 6, threaded rod 10 is connected with connecting plate 9 by screw thread, rotating block 11 is fixed at one end of threaded rod 10, one guide sliding slot 12 is formed in the inside of two side walls of fixed frame 6, one guide sliding block 13 is fixed at the two sides of connecting plate 9, and guide sliding block 13 is arranged in the inside of guide sliding slot 12.

[0030] ​The middle part of the inner end of the connecting sleeve 4 is provided with a groove 14, and the first sealing gasket 15 is fixedly arranged in the groove 14; the outer end of the first sealing gasket 15 is arranged at the connecting position of the first pipeline 1 and the second pipeline 2; the inner end of the first sealing gasket 15 is fixedly provided with the second sealing gasket 16; the second sealing gasket 16 is arranged between the opposite ends of the first pipeline 1 and the second pipeline 2; the cross section of the first sealing gasket 15 and the second sealing gasket 16 is T-shaped; the third sealing gasket 17 is fixedly arranged on the inner wall of the limiting clamping groove 5 and is in contact with the inner side of the limiting ring 3.

[0031] The first pipeline 1 and the second pipeline 2 are inserted into the connecting sleeve 4 from the two ends of the connecting sleeve 4 respectively, and the limiting rings 3 on the first pipeline 1 and the second pipeline 2 enter the two limiting clamping grooves 5 respectively; when the end portions of the first pipeline 1 and the second pipeline 2 contact the second sealing gasket 16, the rotating block 11 is rotated, the rotating block 11 drives the threaded rod 10 to rotate, the connecting plate 9 moves towards the first pipeline 1 and the second pipeline 2 due to the threaded connection between the threaded rod 10 and the connecting plate 9, the connecting plate 9 drives the movable limiting plate 7 to enter the limiting clamping groove 5, and the arc surface of the movable limiting plate 7 can press the arc surface of the limiting ring 3, so that the limiting ring 3 is pressed and limited in the limiting clamping groove 5, and the end portions of the first pipeline 1 and the second pipeline 2 are tightly attached to the second sealing gasket 16, so that the first pipeline 1 and the second pipeline 2 can be tightly connected and fixed together, and the threaded rod 10 is protected in the fixed frame 6, so that the fixed frame 6 is prevented from being exposed and corroded.

[0032] The connecting sleeve 4 is used for protecting the connecting position of the first pipeline 1 and the second pipeline 2, and the movable limiting plate 7 is used for limiting and fixing the limiting rings 3 on the first pipeline 1 and the second pipeline 2, so that the connecting and fixing process of the first pipeline 1 and the second pipeline 2 is more convenient, the connecting and fixing efficiency is higher, the threaded rod 10 for adjusting the position of the movable limiting plate 7 is located in the fixed frame 6, the rusting and breaking phenomenon is effectively avoided, the first pipeline 1 and the second pipeline 2 can be kept in sealed connection, and the connecting and fixing effect is better, and the above embodiment specifically solves the problem in the prior art that the connecting position of the natural gas conveying pipeline is mostly connected and fixed by using a plurality of bolts, the connecting efficiency is low, the bolts are easily corroded and broken due to long-term exposure, and the connection and sealing between the pipelines are not good.

[0033] The above only describes certain exemplary embodiments of the utility model by way of illustration, without doubt, for ordinary skilled in the art, the described embodiments can be modified in various ways without deviating from the spirit and scope of the utility model. Therefore, the above drawings and description are illustrative in nature and should not be understood as limiting the scope of protection of the utility model claims.

Claims

1. A natural gas transmission pipeline characterized by, The utility model relates to a kind of pipe connecting device, including: First pipe (1) and second pipe (2), and the outer part of the end of first pipe (1) and second pipe (2) is fixed with a limit ring (3) in each other direction; Connecting sleeve (4) is arranged at the connecting place outer end of first pipe (1) and second pipe (2), and the inner end of connecting sleeve (4) is provided with a limit card slot (5) on both sides, and two limit rings (3) are arranged in the limit card slot (5) respectively; Two fixed frames (6) are fixed at the top and bottom of connecting sleeve (4) respectively, and the inner part of fixed frame (6) is provided with two movable limit plates (7), the top and bottom of connecting sleeve (4) are provided with two communication ports (8), one end of movable limit plate (7) passes through communication port (8) and extends to the outside of limit ring (3), and the other end of two movable limit plates (7) is fixed with a connecting plate (9), the top and bottom of connecting sleeve (4) are rotatably connected with a threaded rod (10), one end of threaded rod (10) passes through connecting plate (9) and fixed frame (6) and is rotatably connected with fixed frame (6), and threaded rod (10) and connecting plate (9) are connected by screw thread.

2. A natural gas pipeline as claimed in claim 1, wherein: The outer side surface of limit ring (3) and the inner side surface of one end of movable limit plate (7) are arc surfaces.

3. A natural gas pipeline as defined in claim 1, wherein: Rotating block (11) is fixed at one end of threaded rod (10).

4. A natural gas pipeline as defined in claim 1, wherein: The inner side wall of fixed frame (6) is provided with a guide sliding slot (12) on both sides, and the both sides of connecting plate (9) are fixed with a guide sliding block (13), and the guide sliding block (13) is arranged in the guide sliding slot (12).

5. A natural gas pipeline as defined in claim 1, wherein: The inner end of connecting sleeve (4) is provided with a groove (14) in the middle, and the first sealing gasket (15) is fixed in the groove (14), the first sealing gasket (15) is arranged at the connecting place outer end of first pipe (1) and second pipe (2), and the second sealing gasket (16) is fixed in the inner end of first sealing gasket (15), and the second sealing gasket (16) is arranged between the end of first pipe (1) and second pipe (2) in each other direction.

6. A natural gas pipeline as defined in claim 5, wherein: The cross section of first sealing gasket (15) and second sealing gasket (16) is T-shaped.

7. A natural gas pipeline as defined in claim 1, wherein: The third sealing gasket (17) is fixed on the inner wall of limit card slot (5), and the third sealing gasket (17) is in contact with the inner side of limit ring (3).

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