1. A pipeline plugging device is characterized by comprising:

leaking stoppage main part (1), leaking stoppage main part (1) includes in proper order: the drilling device comprises a drilling head part (3) arranged at one end of the drilling head part and used for processing a hole in the wall of a pipeline, a matching part (2) arranged close to the drilling head part (3) and a propelling part (4) arranged close to the matching part (2), wherein a propelling ring (6) is matched and connected on the propelling part (4);

the expansion ring (5) is sleeved outside the matching part (2);

the pushing ring (6) is pushed towards the direction close to the drill bit part (3) along the axial direction of the leakage stopping main body (1), so that the matching part (2) applies axial reverse extrusion force to the expansion ring (5) to deform the expansion ring.

2. The pipe plugging device according to claim 1, wherein: the mating portion (2) includes: a columnar part (21) adjacent to the propulsion part (2) and a frustum part (22) integrally connected with the columnar part (21);

the inner wall of the expansion ring (5) close to the drill bit part (3) has the same taper as the conical part (22).

3. The pipe plugging device according to claim 2, wherein: the inner wall of the expansion ring (5) is provided with a circle of groove, and the expansion ring (5) is extruded when the propelling ring (4) acts, so that the radial size of the expansion ring (5) at the groove is increased.

4. The pipe plugging device according to claim 3, wherein: the cross section of the groove is triangular.

5. The pipe plugging device according to claim 1, wherein: the expansion ring (5) is made of copper.

6. The pipe plugging device according to claim 1, wherein: the taper of the frustum part (22) is 14 degrees.

7. The pipe plugging device according to claim 1, wherein: the propelling part (4) is in threaded connection with the propelling ring (6), and a spacing sleeve (7) arranged outside the hole is arranged between the propelling ring (4) and the matching part (2).

8. The pipe plugging device according to claim 1, wherein: and a clamping part (8) for mounting a drilling tool is connected to the side of the propelling part (4) far away from the matching part (2).

Background

Piping perforations can occur in oil pipelines for a variety of reasons. The traditional method for plugging is to use a hardwood plug to carry into a cavity for plugging. This method is effective for the treatment of relatively regular pipe cavities, but is difficult for the treatment of irregular cracks and cavities. Another method of plugging is known as capping, which is effective in dealing with irregular cavities. But the plugging effect is not good when the pipeline anti-corrosion coating on site is treated.

Disclosure of Invention

In view of the above-mentioned defect or deficiency among the prior art, this application aims at providing a pipeline plugging device, including the leaking stoppage main part, the leaking stoppage main part includes in proper order: the device comprises a drill bit part, a matching part and a propelling part, wherein the drill bit part is arranged at one end of the device and used for processing a hole in the wall of a pipeline;

the expansion ring is sleeved outside the matching part;

and the pushing ring is pushed towards the direction close to the drill bit part along the axial direction of the leaking stoppage main body, so that the matching part applies axial reverse extrusion force to the expansion ring to deform the expansion ring.

According to the technical scheme provided by the embodiment of the application, the matching part comprises: the frustum part is integrally connected with the columnar part;

the inner wall of the expansion ring close to the drill bit side has the same taper as the cone part.

According to the technical scheme that this application embodiment provided, the expansion ring inner wall is equipped with a round of recess, push when the ring action the extrusion the expansion ring makes the expansion ring is in the radial dimension increase in recess department.

According to the technical scheme provided by the embodiment of the application, the cross section of the groove is triangular.

According to the technical scheme provided by the embodiment of the application, the expansion ring is made of copper.

According to the technical scheme provided by the embodiment of the application, the taper of the frustum part is 14 degrees.

According to the technical scheme provided by the embodiment of the application, the propelling part is in threaded connection with the propelling ring, and a spacer sleeve arranged outside the hole is arranged between the propelling ring and the matching part.

According to the technical scheme provided by the embodiment of the application, a clamping part for installing a drilling tool is connected to the side, away from the matching part, of the propelling part.

To sum up, the application discloses a pipeline plugging device is equipped with drill bit portion, joining in marriage connecting portion, propulsion portion in proper order on blockking up the body to join in marriage to connect outward at the propulsion portion and have advanced the ring. When the pipeline plugging device works, regular holes are processed at the leakage points of the pipeline by using the drill bit part, the pipeline plugging device is pushed into the holes, the matching part and the expansion ring sleeved outside the matching part, and the drill bit part is positioned in the holes, the plugging body moves towards the direction outside the holes through the action of the pushing ring, so that the matching part extrudes the expansion ring towards the direction outside the holes to deform and expand outwards; in addition, the method of drilling thick holes and then plugging is adopted, so that plugging can be performed on irregular pipeline holes, the drilling and plugging can be completed at one time, the convenience and the rapidness are improved, and the plugging efficiency is improved.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

FIG. 1 is a schematic view of one embodiment of the apparatus for plugging a pipeline of the present application (without the addition of an expansion ring);

FIG. 2 is a schematic view of one embodiment of a pipeline plugging device of the present application (with an expansion ring installed);

FIG. 3 is a schematic view of an embodiment of a pipeline plugging device of the present application;

FIG. 4 is a cross-sectional view of the embodiment of FIG. 3, as shown in FIG. A-A;

fig. 5 is a schematic view of an embodiment of the pipeline plugging device of the present application.

1. Blocking the body; 2. a mating portion; 21. a columnar portion; 22. a frustum portion; 3. drilling a head part; 4. a propelling part; 5. an expansion ring; 51. a first expansion point; 52. a second expansion point; 6. a propulsion ring; 7. a spacer sleeve; 8. a clamping portion; 9. a clamping portion.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

As mentioned in the background art, the present disclosure provides a pipeline leakage blocking device, as shown in fig. 1 and 2, for solving the problem of difficulty in blocking irregular cracks and holes in the prior art, the pipeline leakage blocking device includes a leakage blocking main body 1, and the leakage blocking main body 1 sequentially includes: the drilling device comprises a drilling head part 3 arranged at one end of the drilling head part and used for processing a hole in the wall of a pipeline, a matching part 2 arranged close to the drilling head part 3 and a propelling part 4 arranged close to the matching part 2, wherein a propelling ring 6 is matched and connected on the propelling part 4; and the expansion ring 5 is sleeved outside the matching part 2.

Specifically, the outer diameter of the matching part 2 is not larger than that of the drill bit part 3, the outer diameter of the pushing part 4 is smaller than that of the matching part 2, the outer diameter of the pushing ring 6 is larger than that of the drill bit part 3, and the outer diameter of the expansion ring 5 is the same as that of the drill bit part 3, so that when the plugging device is pushed into a hole, the drill bit part 3, the matching part 2 and the expansion ring 5 matched with the matching part are in the hole, and the pushing ring 6 and the pushing part 4 matched with the pushing ring are outside the hole. Optionally, the drill bit part 3 is a U-shaped chip removal groove drill bit, and the U-shaped chip removal groove is beneficial to rapid chip removal, so that the drilling performance is improved.

And the pushing ring 6 is pushed towards the direction close to the drill bit part 3 along the axial direction of the plugging main body 1, so that the mating part 2 applies axial reverse extrusion force to the expansion ring 5 to deform the expansion ring. The plugging body moves towards the direction outside the hole through the action of the pushing ring 6, so that the matching part 2 extrudes the expansion ring 5 towards the direction outside the hole to deform and expand outwards, when the wedge-shaped expansion ring 5 is attached to the broken hole on the inner wall of the pipeline, the expansion ring 5 is attached to the inner wall of the pipeline in a wedge-shaped manner, the attachment is stronger, and the sealing performance is better; in addition, the method of drilling thick holes and then plugging is adopted, so that plugging can be performed on irregular pipeline holes, the drilling and plugging can be completed at one time, the convenience and the rapidness are improved, and the plugging efficiency is improved.

As shown in fig. 2 and 4, the fitting portion 2 includes: a columnar portion 21 adjacent to the propulsion portion 2 and a frustum portion 22 integrally connected to the columnar portion 21; the inner wall of the expansion ring 5 on the side close to the bit portion 3 has the same taper as the tapered table portion 22. Preferably, the length of the expansion ring 5 is smaller than the length of the mating portion 2, and in operation, the expansion ring 5 expands near the bit portion 3, and after expansion, a gap is formed between the expansion ring and the plug body 1, so that a tapered frustum portion 22 is provided near the bit portion 3 at the mating portion 2, the inner wall of the expansion ring 5 has the same taper as that of the corresponding portion of the frustum portion 22, and the inner wall thereof gradually decreases toward the advancing portion 4 along the bit portion 3, so that when the advancing ring 6 is actuated, the plug body 1 moves toward the outside of the hole, so that the mating portion 2 forms a pressing force on the expansion ring 6, and when the expansion ring 5 expands at the tapered inner wall, the first expansion point 51 of the expansion ring is formed, on the one hand, a seal is formed by being attached to a broken hole of the inner wall of the pipe, and on the other hand, the expansion ring 5 and the mating portion 2 can also be tightly attached, forming a seal against the outflow of liquid in the pipe between the expansion ring 5 and the plugging body 1.

As shown in fig. 4, the inner wall of the expansion ring 5 is provided with a circle of grooves, and the pushing ring 4 presses the expansion ring 5 when acting, so that the radial size of the expansion ring 5 at the grooves is increased. When the pushing ring 6 acts, the expansion ring 5 is squeezed, the side close to the drill bit part 3 is expanded, after the expansion ring 5 and the pipeline form a first seal, the pushing ring 6 continues to act, the matching part 2 continues to move towards the orifice, and the pushing ring 6 is outside the hole, so the expansion ring 5 continues to be squeezed under the action of the pushing ring 6 and the matching part 2, as the space of the expansion ring 5 is smaller and smaller, the radial size of the expansion ring 5 is increased at the groove, so that the size interference is formed between the expansion ring 5 and the pipeline hole, and the friction force is formed on the inner wall of the pipeline hole, and the seal between the expansion ring 5 and the pipeline hole wall is achieved, wherein the groove is a second expansion point 52 of the expansion ring 5. The design can enhance the sealing performance of the pipeline plugging device on the broken hole pipeline and can also enhance the pressure resistance of the pipeline plugging device on the inner wall of the pipeline.

As shown in fig. 4, the grooves are triangular in cross-section. Because the triangular groove is easier to extrude when the two side walls are stressed, the radial size of the expansion ring at the groove is easier to increase, and the expansion efficiency is improved.

Preferably, the material of the expansion ring 5 is copper. The copper expansion ring 5 is selected because of its good ductility, ability to form a good seal, good mechanical strength, and strong pressure resistance.

Preferably, the taper of said frustum portion is 14 degrees. If the taper is too large, the structural strength of the matching part 2 is reduced, and the pressure resistance of the pipeline plugging device is reduced; if the taper is too small, the expansion ring 5 is too small to achieve the sealing effect during the action. Preferably, the taper of the fitting portion 2 is set to 14 degrees.

Preferably, as shown in fig. 1 and 5, the propelling part 4 is in threaded connection with the propelling ring 6, and a spacer 7 is arranged between the propelling ring 4 and the mating part 2 and is disposed outside the hole. The propelling part 4 is provided with threads, a propelling ring 6 connected with the propelling part through the threads is arranged on the outer ring of the propelling part 4, when the plug is in work, the outer diameter of the propelling part 4 is smaller than that of the matching part 2, the outer diameter of the propelling ring 6 is larger than that of the drill bit part 3, and the outer diameter of the expansion ring 5 is the same as that of the drill bit part 3, so that when the plug is in work, the propelling ring 6 is tightly attached to the hole wall, the propelling ring 6 rotates towards the drill bit part along the axial direction, but the propelling part 4 matched with the threads does axial reverse motion due to the obstruction of the hole, so that the plug body 1 reversely moves towards the outside of the hole, and the propelling ring 6 and the matching part 2 extrude the expansion ring 5. In order to prevent the rotating push ring 6 from damaging the hole wall, a spacer 7 is arranged between the push ring 6 and the fitting 2, and the outer diameter of the spacer is also larger than that of the hole.

As shown in fig. 1 and 2, the pushing part 4 is connected with the clamping part 8 for installing the drilling tool on the side far away from the matching part 2, and the method of drilling holes and then blocking is adopted in the present disclosure, so that the clamping part 8 is preferably arranged, the drilling tool is convenient to install, and the plugging efficiency is improved. Optionally, a stop portion 9 is provided between the pushing portion 4 and the clamping portion 8, the stop portion 9 has a clamping surface for facilitating the installation of a clamping tool, preferably, the stop portion 9 is hexagonal prism shaped, and a wrench can be used to act on the plugging body 1 through the stop portion 9 to prevent the plugging body 1 and the pushing ring 6 from acting simultaneously, so that the movement of the plugging body 1 cannot be formed and the compression of the expansion ring 6 cannot be formed.

The use method of the pipeline leakage plugging device of the embodiment shown in fig. 5 is as follows:

a cutter head is arranged on the drill head part 3;

sleeving the expansion ring 5 into the matching part 2 of the blocking body, sleeving the spacing sleeve 7 outside the propelling part 4, and connecting the propelling ring 6 to the propelling part 4 in a threaded manner;

a drilling tool is arranged on the clamping part 8, a hole is drilled at a leakage point of the pipeline, and after the hole is drilled, the drilling head part 3, the matching part 2 and the expansion ring 5 which is arranged outside the hole are arranged in the hole;

clamping the stopper 9 with a wrench, and rotating the thrust ring 6 so that the thrust ring 6 approaches toward the bit portion 3 side;

when the spacing sleeve 7 props against the wall of the pipeline, the pushing ring 6 continues to rotate, the pushing part 4 drives the plugging body 1 to move outwards, and the pushing ring 6 is continuously rotated to enable the pipeline plugging device to be firmly contacted with the pipeline, so that the sealing effect is achieved.

The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.