Quick connecting pipe fitting for oil pipeline emergency repair

Abstract

The utility model relates to connecting pipe fitting technical field especially relates to a kind of oil pipeline repair fast connecting pipe fittings, including connecting pipe main body, the connecting pipe main body includes the flange pipe for being connected with the flange end of oil pipeline and being at two end positions and the main pipe for being used to connect two flange pipes, detachable sealing connection between the flange pipe and main pipe, the spacing between two the flange pipe is adjustable, it is set up the connecting pipe main body formed by flange pipe and main pipe, and while ensuring detachable sealing connection between flange pipe and main pipe, meet the spacing adjustable between two flange pipes, realize the effect of quick repair to oil pipeline.

Description

Technical Field

[0001] This utility model relates to the field of connecting pipe fittings technology, and in particular to a quick connecting pipe fitting for emergency repair of oil pipelines. Background Technology

[0002] When oil pipelines suffer significant damage, such as from external forces, replacement is often the only solution. External force damage is common in above-ground oil pipelines. For common flange-connected oil pipelines, replacing a single pipe often presents the following problems: it's difficult to quickly find a suitable replacement of the same length; even if a suitable replacement is available, it may not be possible to ensure that both flange ends are fully compressed, leading to minor oil leaks. Therefore, a quick-connect fitting for emergency repairs of oil pipelines needs to be designed to address these issues. Utility Model Content

[0003] This utility model provides a quick-connect fitting for emergency repairs of oil pipelines to solve the problem mentioned in the background art that when replacing oil pipelines with flanged ends, it is impossible to ensure that both flange ends are fully pressed and sealed at the same time, which easily leads to leakage.

[0004] The technical problem solved by this utility model is achieved by the following technical solution:

[0005] This utility model provides a quick-connect fitting for emergency repair of oil pipelines, including a connecting pipe body. The connecting pipe body includes flange pipes at both ends for connecting to the flange ends of the oil pipeline, and a main pipe in the middle for connecting the two flange pipes. The flange pipes and the main pipe are detachably and sealed together, and the distance between the two flange pipes is adjustable.

[0006] Preferably, the spacing between the two flange pipes is adjusted by extending or bending the main pipe.

[0007] Preferably, the main pipe is a flexible pipe body, with both ends of the flexible pipe body respectively sleeved on the outside of the flange pipe, and a clamp is installed at the position where the flexible pipe and the flange pipe are sleeved.

[0008] Preferably, the main pipe is a retractable flexible corrugated hose, with both ends of the corrugated hose respectively fitted onto the outside of the flange pipe, and clamps installed at the positions where the corrugated hose fits onto the flange pipe.

[0009] Preferably, the main pipe is a split joint, and the flange pipe extends into the interior of the split joint. The distance between the two flange pipes can be adjusted by adjusting the length of the flange pipe extending into the interior of the split joint.

[0010] The beneficial effects of this utility model are: it is equipped with a connecting pipe body consisting of a flange pipe and a main pipe, and while ensuring a detachable and sealed connection between the flange pipe and the main pipe, it also satisfies the requirement that the distance between the two flange pipes is adjustable, thereby achieving the effect of rapid emergency repair of oil pipelines. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the prior art of this utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the first embodiment of the present utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the second embodiment of the present utility model;

[0015] Figure 4 This is a schematic diagram of the structure of the third embodiment of the present utility model;

[0016] Figure 5 This utility model Figure 4 A partial sectional view;

[0017] Figure 6 This is a cross-sectional view of the second embodiment of the present invention;

[0018] Figure 7 This utility model Figure 6 A magnified structural diagram of point A in the middle.

[0019] In the diagram, 1 is the oil pipeline; 101 is the first pipeline; 102 is the second pipeline; 103 is the third pipeline; 104 is the sealing gasket; 2 is the flange end; 3 is the damage point; 4 is the corrugated hose; 5 is the flange pipe; 501 is the groove; 6 is the clamp; 7 is the split joint; 701 is the outer shell of the first half-pipe; 702 is the outer shell of the second half-pipe; 703 is the sealing gasket; and 704 is the fastening bolt. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0021] refer to Figure 1To enable those skilled in the art to better understand the innovative points of this utility model, the existing structure of this utility model is first described. This utility model aims to solve the problem of post-construction maintenance of multiple oil pipelines connected by flanges. As is well known, during the installation of multiple pipelines connected by flanges, sequential splicing is necessary to ensure good sealing at each flange connection. This ensures that each flange connection maintains a good seal. Figure 1 The three oil pipelines 1 are connected by flanges. The three oil pipelines 1 are the first pipeline 101, the second pipeline 102, and the third pipeline 103, with the third pipeline 103 located between the first pipeline 101 and the second pipeline 102. When a severe damage point 3 occurs in the third pipeline 103, since the positions of the first and second pipelines 101 are already fixed, it is difficult to ensure consistent sealing at both ends of the replaced third pipeline 103 using traditional direct replacement methods. For example, if the flange ends 2 between the first pipeline 101 and the third pipeline 103 are first connected, the sealing gasket 104 between the flange ends 2 of the first pipeline 101 and the third pipeline 103 will be compressed. When the connection at flange end 2... The tighter the bolts are tightened, the more the sealing gasket 104 is compressed. At this time, the gap between the third pipe 103 and the second pipe 102 is larger. If the gap between the third pipe 103 and the second pipe 102 is too large, it will be impossible to ensure that the sealing gasket 104 is fully compressed even if the connecting bolts between the two are tightened. This is because once the first pipe 101 and the third pipe 103 are connected, the gap between the third pipe 103 and the second pipe 102 is also determined. Therefore, when the pipes connected by flanges are replaced separately later, it is difficult to ensure that the sealing effect at both ends is the same. Based on the above situation, the present invention adopts the following solution to solve the problem.

[0022] Reference 2 is a first embodiment of the quick-connect fitting for emergency repair of oil pipeline 1 provided by this utility model. It includes a flange pipe 5 and a main pipe, wherein the flange pipe 5 and the main pipe are detachably sealed. The flange pipe 5 is connected to the flange ends 2 of the corresponding two oil pipelines 1 respectively. In this embodiment, the middle main pipe is made of a flexible and bendable material, such as corrosion-resistant rubber, and has sufficient length to extend between the flange ends 2 of the two oil pipelines 1. In use, one flange pipe 5 is first connected to the flange end 2 of one oil pipeline 1, and then the other flange pipe 5 is connected to the flange of the oil pipeline 1. Since the main pipe is made of a flexible material of corrosion resistance, the distance between the two flange pipes 5 is not limited by the distance between the flange ends 2 of the two oil pipelines, which can fully ensure that the connection between the flange pipe 5 and the flange end 2 is kept in a state where the sealing gasket 104 is fully compressed.

[0023] refer to Figure 3 The second embodiment of the quick-connect fitting for emergency repair of oil pipeline 1 provided by this utility model includes a flange pipe 5 and a main pipe, wherein the flange pipe 5 and the main pipe are detachably sealed together. The flange pipe 5 is connected to the flange ends 2 of the corresponding two oil pipelines 1 respectively. In this embodiment, the middle main pipe adopts a retractable and flexible corrugated hose 4, which can also realize that when the flange pipe 5 at both ends of the main pipe is connected to the flange ends 2, it is not limited by the distance between the flange ends 2 of the two oil pipelines 1, and can ensure that the connection between the flange pipe 5 and the flange ends 2 is kept in a state where the sealing gasket 104 is fully compressed.

[0024] To enable those skilled in the art to understand the connection method between the main pipe and the flange pipe 5 in the two embodiments described above, a specific connection method is given below using the second embodiment as an example in the accompanying drawings. Figure 3 , Figure 6 and Figure 7 The two ends of the main pipe are respectively fitted onto the outside of the flange pipe 5, and then clamped with clamps 6 to achieve a detachable and sealed connection between the two. In order to further improve the sealing effect, a groove 501 is provided on the side wall of the flange pipe 5. The main pipe is clamped and deformed into the groove 501 by clamps 6 to further ensure the sealing effect.

[0025] refer to Figure 4 and Figure 5This is the third embodiment of the quick-connect fitting for emergency repair of oil pipeline 1 provided by this utility model. It includes a flange pipe 5 and a main pipe, wherein the flange pipe 5 and the main pipe are detachably and sealingly connected. The flange pipe 5 is connected to the flange ends 2 of the corresponding two oil pipelines 1. In this embodiment, the middle main pipe is implemented using a split joint 7. One end of the flange pipe 5 extends into the interior of the split joint 7. The split joint 7 is an existing structure. To enable those skilled in the art to clearly understand the structure of the split joint 7, its structure is briefly described here. The split joint 7 has a shape that tapers at both ends and expands in the middle. The split joint 7 includes two half-pipe shells (first half-pipe shell 701 and second half-pipe shell 702), which are connected by fastening bolts 704. Sealing gaskets 703 are provided at the contact points between the two half-pipe shells and the flange pipe 5, and at the contact points between the two half-pipe shells, to ensure overall sealing. During use, the two flange pipes 5 are first connected to the flange ends 2 of the two oil pipelines 1 respectively, ensuring the sealing gaskets 703 are in place. 3. The flange pipe 5 is in a fully compressed state. Then, the free ends of the two flange pipes 5 are covered by the half pipe. This ensures that the connection between the flange pipe 5 and the flange end 2 is kept in a fully compressed state with the gasket 703. Alternatively, the flange pipe 5 and the half pipe 7 can be assembled first. During the assembly of the half pipe 7 and the flange pipe 5, the fastening bolts 704 of the two half pipe shells of the half pipe 7 are kept loose. This loose state ensures that the free end of the flange pipe 5 is inside the half pipe 7, and does not affect the relative movement between the flange pipe 5 and the half pipe 7 (i.e., the flange pipe 5 can be drawn in the half pipe 7). After the two flange pipes 5 are connected to the flange end 2 by the connecting bolts, the extension length of the flange pipe 5 inside the half pipe 7 is also fixed. At this time, the fastening bolts 704 are tightened to ensure the relative stability and sealing between the half pipe 7 and the flange pipe 5. This also ensures that the two flange pipes 5 and the two flange ends 2 of the quick-connect fitting for emergency repair of the oil pipeline 1 are kept in a fully compressed state with the gasket 703.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above-described embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A quick-connect fitting for emergency repair of oil pipelines, comprising a connecting pipe body, characterized in that, The main body of the connecting pipe includes flange pipes (5) at both ends for connecting to the flange ends (2) of the oil pipeline (1) and a main pipe in the middle for connecting the two flange pipes (5). The flange pipes (5) and the main pipe are detachably sealed together, and the distance between the two flange pipes (5) is adjustable.

2. The quick-connect fitting for emergency repair of oil pipelines according to claim 1, characterized in that, The spacing between the two flanges (5) is adjusted by extending or bending the main pipe.

3. The quick-connect fitting for emergency repair of oil pipelines according to claim 2, characterized in that, The main pipe is made of a flexible pipe body, and the two ends of the flexible pipe body are respectively sleeved on the outside of the flange pipe (5). A clamp (6) is installed at the position where the flexible pipe and the flange pipe (5) are sleeved.

4. The quick-connect fitting for emergency repair of oil pipelines according to claim 2, characterized in that, The main pipe is a retractable flexible corrugated hose (4), and the two ends of the corrugated hose (4) are respectively sleeved on the outside of the flange pipe (5). A clamp (6) is installed at the position where the corrugated hose (4) and the flange pipe (5) are sleeved.

5. The quick-connect fitting for emergency repair of oil pipelines according to claim 1, characterized in that, The main pipe is a split section (7), and the flange pipe (5) extends into the interior of the split section (7). By adjusting the length of the flange pipe (5) extending into the interior of the split section (7), the distance between the two flange pipes (5) can be adjusted.

6. The quick-connect fitting for emergency repair of oil pipelines according to claim 5, characterized in that, The half-section (7) is a shape with both ends narrowed and the middle widened. The half-section (7) includes two half-tube shells. The two half-tube shells are connected by fastening bolts (704). Sealing gaskets (703) are provided at the contact positions of the two half-tube shells with the flange pipe (5) and at the contact positions of the two half-tube shells with each other to ensure the overall sealing performance.

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