CN204372441U - Pipeline repair device - Google Patents

Abstract

The utility model provides a pipeline repairing device, include: a connecting sleeve (10); the pipe joint comprises two pressing sleeves (20), wherein first ends of the two pressing sleeves (20) are respectively connected with two pipe ends to be connected, and second ends of the two pressing sleeves (20) are connected through a connecting sleeve (10). The technical scheme of the utility model the higher problem of pipeline cost is changed after having solved among the prior art oil field pipeline problem effectively.

Description

Pipeline repair device

technical field

The utility model relates to the technical field of pipelines, in particular to a pipeline repair device.

Background technique

Compared with metal pipes, plastic alloy composite pipes have many advantages such as corrosion resistance, high strength, light weight, good toughness, excellent hydrodynamic properties and convenient thread connection. Therefore, plastic alloy composite pipes are used more and more widely, and are currently used in the fields of water injection, oil transportation, polymer injection, and transportation of various corrosive liquids.

Plastic alloy composite pipes are generally used for oil transportation in single wells in oil fields, connected with cast iron joints and threaded, and laid underground. In the process of use, the plastic alloy pipe at the pipe joint may break or cracks may appear in the middle of the pipe. The processing method in the prior art is to directly replace a single plastic alloy composite pipe, but there will be many problems in the replacement of a single plastic alloy composite pipe. In the process of replacing a single pipeline, it is necessary to excavate the earth above the whole or several pipelines, and the excavation machinery and labor costs are relatively high. In addition, the pipeline will shrink and deform during long-term use, and the replaced new pipe will often buckle with the original old pipe and fail to connect. It should also be noted that the damage points generally appearing on the pipeline are relatively small, if the whole pipe is replaced because of this, the waste of materials and the increase of cost will be caused.

Utility model content

The main purpose of the utility model is to provide a pipeline repair device to solve the problem of high cost of replacing pipelines in the prior art after problems occur in oilfield pipelines.

In order to achieve the above object, the utility model provides a pipeline repair device, comprising: a connecting sleeve; two compression sleeves, the first ends of the two compression sleeves are respectively connected to the two pipe ends to be connected, and the two The second end of the compression sleeve is connected through the connection sleeve.

Further, the pipeline repairing device also includes a connecting nipple, and there are two connecting sleeves, the second ends of the two compression sleeves are respectively connected to the first ends of the two connecting sleeves, and the two ends of the connecting nipple are connected to the two connecting sleeves respectively. The second end of the connecting sleeve is connected.

Further, the connecting sleeve is provided with an annular protrusion, the second end of the compression sleeve is inserted into the connecting sleeve and is sealed against the annular protrusion, and the two ends of the connecting nipple are respectively inserted into the second ends of the two connecting sleeves And abut and seal with the annular protrusion.

Further, the connecting short joint and the connecting sleeve are connected by threads.

Further, a first sealing ring is provided between the second end of the compression sleeve and the annular protrusion.

Further, a second sealing ring is provided between the two ends of the short joint and the annular protrusion.

Furthermore, an annular protrusion is arranged inside the connecting sleeve, and the second end of the compression sleeve is inserted into the connecting sleeve and abuts against and seals against the annular protrusion.

Further, a first sealing ring is provided between the second end of the compression sleeve and the annular protrusion.

Further, the compression sleeve and the connection sleeve are connected through threads.

Further, the extension of the first end of the compression sleeve is provided with a profile suitable for a hexagon bolt wrench.

Applying the technical scheme of the utility model, the damaged pipe section is first cut off, and then the first ends of the two compression sleeves are respectively connected to the two pipe ends, and the second ends of the two compression sleeves are connected through the connection sleeve. In this way, repairing the pipeline by the pipeline repairing device avoids the replacement of the entire pipeline, thereby saving resources and reducing costs. On the other hand, it also avoids excavating the earth above the whole or several pipes, reducing the construction time.

In addition to the purposes, features and advantages described above, the present invention has other purposes, features and advantages. Below with reference to figure, the utility model is described in further detail.

Description of drawings

The accompanying drawings constituting a part of this application are used to provide a further understanding of the utility model, and the schematic embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute improper limitations to the utility model. In the attached picture:

Fig. 1 shows a schematic structural view of an embodiment of a pipeline repair device according to the present invention; and

Fig. 2 shows a schematic cross-sectional view of an embodiment of the pipeline repair device in Fig. 1 .

Wherein, the above-mentioned accompanying drawings include the following reference signs:

10. Connecting sleeve; 20. Compression sleeve; 30. Connecting nipple; 40. First sealing ring; 50. Second sealing ring.

Detailed ways

It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The utility model will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the utility model. Obviously, the described The embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

It should be noted that the terms "first" and "second" in the specification and claims of the present utility model and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific order or sequence . It should be understood that the data so used may be interchanged under appropriate circumstances in order to facilitate the embodiments of the invention described herein. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or device comprising a sequence of steps or elements is not necessarily limited to the expressly listed instead, may include other steps or elements not explicitly listed or inherent to the process, method, product or apparatus.

As shown in FIG. 1 , the pipeline repair device of this embodiment includes a connecting sleeve 10 and two compression sleeves 20 . The first ends of the two compression sleeves 20 are respectively connected to the two pipe ends, and the second ends of the two compression sleeves 20 are connected through the connection sleeve 10 .

Applying the technical solution of this embodiment, the damaged pipe section is first cut off, and then the first ends of the two compression sleeves 20 are respectively connected to the two pipe ends, and the second ends of the two compression sleeves 20 are connected through the connection sleeve 10 . In this way, repairing the pipeline by the pipeline repairing device avoids the replacement of the entire pipeline, thereby saving resources and reducing costs. On the other hand, it also avoids excavating the earth above the whole or several pipes, reducing the construction time. Those skilled in the art know that in the process of cutting the damaged pipe section, the generation and existence of burrs should be avoided when implementing this solution.

When the damage on the pipeline is relatively long, after the damaged pipeline is cut off, the pipeline can be repaired by adding a connecting nipple 30 . The pipeline repairing device also includes a connecting nipple 30, two connecting sleeves 10, the first ends of the two compression sleeves 20 are respectively connected to the two pipe ends, and the second ends of the two compression sleeves 20 are connected to the two pipe ends respectively. The first end of the connecting sleeve 10 is connected, and the two ends of the connecting short joint 30 are respectively connected with the second ends of the two connecting sleeves 10 . According to the actual cut length of the damaged pipeline, the connection sub-joint 30 of an appropriate length can be selected, so that the pipeline with a larger damaged opening can be repaired conveniently.

As shown in Figures 1 and 2, in the technical solution of the embodiment, an annular protrusion is provided inside the connecting sleeve 10, and the second end of the compression sleeve 20 is inserted into the connecting sleeve 10 and abutted against and sealed with the annular protrusion, The two ends of the short connecting joint 30 are respectively plugged into the second ends of the two connecting sleeves 10 and abutted and sealed with the annular protrusion. This enhances the sealing performance of the pipeline repair device. Preferably, a first sealing ring 40 is disposed between the second end of the compression sleeve 20 and the annular protrusion. In this way, the sealing performance of the pipeline repairing device is further enhanced.

As shown in FIG. 1 , in this embodiment, a second sealing ring 50 is provided between the two ends of the short joint 30 and the annular protrusion. The second sealing ring 50 enhances the tightness between the connecting short joint 30 and the connecting sleeve 10 . It is more suitable to choose oil-resistant rubber O-rings for the first sealing ring 40 and the second sealing ring 50 mentioned above.

As shown in FIG. 1 , in this embodiment, the connection nipple 30 and the connection sleeve 10 are connected by threads. The second sealing ring 50 between the two ends of the short joint 30 and the annular protrusion can be pressed tightly through the threaded connection, so as to enhance the sealing effect.

As shown in FIG. 1 and FIG. 2 , in this embodiment, the compression sleeve 20 and the connection sleeve 10 are connected by threads. The first sealing ring 40 between the second end of the compression sleeve 20 and the annular protrusion can be compressed through the threaded connection to further enhance the sealing effect.

As shown in FIG. 1 , in this embodiment, the extension of the first end of the compression sleeve 20 is provided with a profile suitable for a hexagon bolt wrench. In this way, it is convenient to use a wrench to screw the compression sleeve 20 to achieve sealing.

In addition, it should be noted that the technical solution of this embodiment is more suitable for plastic alloy composite pipes. At present, plastic alloy composite pipes are widely used in water injection, polymer injection, oil transportation, etc. , chemical raw material transportation and other fields.

The above descriptions are only preferred embodiments of the utility model, and are not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (10)

1. A pipeline repair device, characterized in that, comprising: connecting sleeve (10); Two compression sleeves (20), the first ends of the two compression sleeves (20) are respectively connected to the two pipe ends to be connected, and the second ends of the two compression sleeves (20) pass through the The connecting sleeve (10) is connected. 2. The pipeline repairing device according to claim 1, characterized in that, the pipeline repairing device further comprises a connecting nipple (30), the number of the connecting sleeves (10) is two, and the two pressing The second end of the sleeve (20) is respectively connected to the first ends of the two connecting sleeves (10), and the two ends of the connecting nipple (30) are respectively connected to the second ends of the two connecting sleeves (10). end connection. 3. The pipeline repair device according to claim 2, characterized in that, an annular protrusion is arranged inside the connecting sleeve (10), and the second end of the compression sleeve (20) is plugged into the connecting sleeve (10) and seal against the annular protrusion, the two ends of the connecting puppet (30) are respectively plugged into the second ends of the two connecting sleeves (10) and abutted against the annular protrusion Then seal. 4. The pipeline repairing device according to claim 2, characterized in that, the connection nipple (30) and the connection sleeve (10) are connected by threads. 5. The pipeline repair device according to claim 3, characterized in that, a first sealing ring (40) is provided between the second end of the compression sleeve (20) and the annular protrusion. 6 . The pipeline repair device according to claim 3 , characterized in that, a second sealing ring ( 50 ) is arranged between the two ends of the connecting nipple ( 30 ) and the annular protrusion. 6 . 7. The pipeline repair device according to claim 1, characterized in that, an annular protrusion is arranged inside the connecting sleeve (10), and the second end of the compression sleeve (20) is plugged into the connecting sleeve (10) and abuts and seals with the annular protrusion. 8. The pipeline repair device according to claim 7, characterized in that, a first sealing ring (40) is provided between the second end of the compression sleeve (20) and the annular protrusion. 9. The pipeline repair device according to claim 1, characterized in that, the compression sleeve (20) and the connecting sleeve (10) are connected by threads. 10. The pipeline repairing device according to claim 1, characterized in that, the outer surface of the first end of the compression sleeve (20) is provided with a profile suitable for a hexagon bolt wrench.