Plugging device for high-temperature pipeline

Abstract

The utility model relates to the technical field of under-pressure plugging, and discloses a plugging device for a high-temperature pipeline, which comprises a plugging machine, a pull rod is connected in the plugging machine in a sliding manner, the lower part of the plugging machine is abutted against a plugging combiner, the lower part of the plugging combiner is abutted against a plugging valve, the lower part of the plugging valve is abutted against a plugging four-way pipe, and the plugging four-way pipe is connected with the plugging machine in a sliding manner. The left side and the right side of the interior of the plugging four-way pipe are fixedly connected with pipes to be plugged, the lower end of the pull rod is in threaded connection with a connector, the interior of the connector is slidably connected with the upper end of a connector, the lower portion of the connector abuts against a plugging rod, and the plugging rod is slidably connected to the middle of the interior of the plugging four-way pipe. According to the plugging device, the plugging rod can be pushed into the plugging four-way pipe through the connector to complete plugging through cooperation among the plugging machine, the pull rod, the connector and the connector, the multiple locking rods and the multiple locking blocks can prevent the plugging rod from moving, and therefore installation of the plugging rod is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure plugging, in particular to a plugging device for high-temperature pipelines. Background Art

[0002] Traditional barrel-type sealing structures and sealing materials are difficult to maintain a stable sealing effect in high-temperature environments. When the medium temperature in the pipeline exceeds 200°C, existing sealing technologies often cannot meet the requirements, which can easily lead to leakage and increase maintenance difficulty and cost. Therefore, a high-temperature pipeline sealing device came into being.

[0003] Existing technologies include: mechanical occluders place the sealing device inside the pipeline through pressure or mechanical force, using its structural design to prevent fluid from passing through; bellows occluders use the characteristics of its flexible material to fill the pipeline through expansion or twisting deformation to achieve the effect of sealing the pipeline; ceramic occluders are made of special high-temperature resistant ceramic materials and achieve the purpose of sealing the pipeline by mechanically clamping or filling the inside of the pipeline.

[0004] Since the sealing materials used in various sealing devices in the steel pipeline pressure plugging process are mostly rubber, they are limited by the applicable temperature limit of rubber and cannot meet the requirements of sealing pipelines exceeding 220°C. Therefore, a high-temperature pipeline plugging device is proposed to solve the above problem. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a high-temperature pipeline sealing device, which aims to improve the problem in the prior art that the sealing material cannot work normally at a high temperature of 220 degrees Celsius, resulting in pipeline sealing failure.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a sealing device for a high-temperature pipeline, comprising a sealing machine, a pull rod is slidably connected to the inside of the sealing machine, a sealing coupler is abutted at the bottom of the sealing machine, a sealing valve is abutted at the bottom of the sealing valve, a sealing four-way pipe is fixedly connected to the left and right sides of the interior of the sealing four-way pipe with pipes to be sealed, the lower end of the pull rod is threadedly connected to a connector, the interior of the connector is slidably connected to the upper end of the connector, a sealing rod is abutted at the lower part of the connector, the sealing rod is slidably connected to the middle part of the interior of the sealing four-way pipe, a plurality of evenly distributed locking rods are threadedly connected to the outer periphery of the upper part of the sealing four-way pipe, and the adjacent ends of the plurality of locking rods are rotatably connected to locking blocks, the plurality of locking blocks are respectively slidably connected to the upper interior of the sealing four-way pipe, the plurality of locking blocks abut against the upper interior of the sealing rod, and a sealing assembly is provided on the upper part of the sealing rod, which is used to prevent leakage of pipeline medium.

[0007] Furthermore, the sealing group includes an outer sealing ring layer, the outer sealing ring layer is sleeved on the upper outer periphery of the blocking rod, and the inner portion of the outer sealing ring layer is fixedly connected to the inner sealing ring layer.

[0008] Furthermore, two bolts are threadedly connected to the left and right sides of the connecting head, and the two bolts are respectively abutted against the left and right sides of the upper part of the connector.

[0009] Furthermore, a plurality of evenly distributed bolts 1 are threadedly connected at the edge of the lower part of the plugging machine and the upper part of the plugging coupler, a plurality of evenly distributed bolts 1 are threadedly connected at the edge of the lower part of the plugging coupler and the upper part of the plugging valve, a plurality of evenly distributed bolts 1 are threadedly connected at the edge of the lower part of the plugging valve and the upper part of the plugging four-way pipe, and a plurality of evenly distributed bolts 3 are threadedly connected at the lower part of the connector and the upper part of the plugging rod.

[0010] Furthermore, the interior of the blocking rod is hollow, the blocking rod is made of stainless steel, and the blocking rod abuts against adjacent sides of the two tubes to be blocked.

[0011] Furthermore, a plurality of evenly distributed locking grooves are provided inside the upper portion of the blocking four-way pipe, and the plurality of locking blocks slide inside the plurality of locking grooves respectively.

[0012] Furthermore, the outer layer of the sealing ring is made of stainless steel.

[0013] Furthermore, the inner layer of the sealing ring is made of lead.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the present invention, the plugging machine is started to push the pull rod and the connecting head down, the connecting head pushes the connector down, and the connector pushes the plugging rod into the inside of the plugging four-way pipe. The plugging rod will abut against the adjacent sides of the two pipes to be plugged. When the plugging rod is pushed to the predetermined position, a tool is used to rotate multiple locking rods. The multiple locking rods push the multiple locking blocks to slide close to each other. The multiple locking blocks abut and lock on the upper inner part of the plugging rod, thereby completing the installation of the plugging rod and the high-temperature plugging of the pipeline.

[0016] 2. In the present invention, the outer layer of the sealing ring can seal the gap between the blocking rod and the blocking four-way pipe, and the inner layer of the sealing ring can prevent the outer layer of the sealing ring from collapsing, thereby achieving the sealing function between the blocking rod and the blocking four-way pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional schematic diagram of a high-temperature pipeline blocking device proposed by the present invention;

[0018] Figure 2 This is a structural schematic diagram of a blocking four-way pipe of a blocking device for a high-temperature pipeline proposed by the present invention;

[0019] Figure 3 This is a structural schematic diagram of a locking block of a high-temperature pipeline blocking device proposed by the present invention;

[0020] Figure 4 This is a schematic structural diagram of the inner layer of a sealing ring of a high-temperature pipeline sealing device proposed by the present invention.

[0021] Legend:

[0022] 1. Plugging machine; 2. Plugging coupler; 3. Pull rod; 4. Connector; 5. Connector; 6. Plugging rod; 7. Plugging four-way pipe; 8. Plugging valve; 9. Locking rod; 10. Locking block; 11. Locking groove; 12. Pipe to be plugged; 13. Outer sealing ring; 14. Inner sealing ring; 15. Bolt one; 16. Bolt two; 17. Bolt three. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Reference Figure 1-Figure 3The utility model provides an embodiment of a high-temperature pipeline sealing device, including a sealing machine 1, which can drive the pull rod 3 to move, and the internal sliding connection of the sealing machine 1 is connected with the pull rod 3, which can push the connecting head 4 to move down, and the lower part of the sealing machine 1 is abutted with a sealing coupler 2, and the sealing coupler 2 can connect the sealing machine 1 and the sealing valve 8. The lower part of the sealing machine 1 and the upper part of the sealing coupler 2 are threadedly connected with a plurality of evenly distributed bolts 15. The sealing machine 1 and the sealing coupler 2 are abutted together by a plurality of bolts 15 to prevent leakage of pipeline media. The lower part of the sealing coupler 2 is abutted with a sealing valve 8, and the sealing valve 8 can close the sealing four-way pipe 7. A plurality of evenly distributed bolts 15 are threadedly connected to the sealing coupler 2. At the edge of the lower part of the coupler 2 and the upper part of the blocking valve 8, the blocking coupler 2 and the blocking valve 8 are abutted together by multiple bolts 15 to prevent pipeline medium leakage, the lower part of the blocking valve 8 is abutted with a blocking four-way pipe 7, and the blocking four-way pipe 7 can be wrapped around the outside of the two pipes to be blocked 12 to form a blocking working area, and multiple evenly distributed bolts 15 are threadedly connected to the lower part of the blocking valve 8 and the upper part of the blocking four-way pipe 7. The blocking valve 8 and the blocking four-way pipe 7 are abutted together by multiple bolts 15 to prevent pipeline medium leakage, and the left and right sides of the interior of the blocking four-way pipe 7 are fixedly connected to the pipes to be blocked 12, and the blocking rod 6 abuts against the adjacent side of the two pipes to be blocked 12, and the lower end of the pull rod 3 is threadedly connected with a connector 4, connecting The head 4 can push the connector 5 down, and the upper end of the connector 5 is slidably connected to the inside of the connector 4. The connector 5 can push the blocking rod 6 down. The left and right sides of the connector 4 are threadedly connected with bolts 2 16. The two bolts 2 16 are respectively abutted on the left and right sides of the upper part of the connector 5. The two bolts 2 16 can prevent the connector 5 from slipping off from the inside of the connector 4. The lower part of the connector 5 is abutted against the blocking rod 6. The lower part of the connector 5 and the upper part of the blocking rod 6 are threadedly connected with multiple evenly distributed bolts 3 17. The connector 5 and the blocking rod 6 are connected together by multiple bolts 3 17. The blocking rod 6 can withstand high temperature and block the two tubes 12 to be blocked. The inside of the blocking rod 6 is hollow. The blocking rod 6 is made of stainless steel. The hollowness of the blocking rod 6 can In order to reduce the weight of the equipment, the sealing rod 6 is slidably connected to the middle part of the interior of the sealing four-way tube 7, and the upper outer periphery of the sealing four-way tube 7 is threadedly connected with multiple evenly distributed locking rods 9. The multiple locking rods 9 can push and pull the multiple locking blocks 10 close to each other, and the adjacent ends of the multiple locking rods 9 are rotatably connected with the locking blocks 10. The multiple locking blocks 10 prevent the sealing rod 6 from sliding. The multiple locking blocks 10 are respectively slidably connected to the upper interior of the sealing four-way tube 7, and the upper interior of the sealing four-way tube 7 is provided with multiple evenly distributed locking grooves 11. The multiple locking blocks 10 slide respectively inside the multiple locking grooves 11, and the multiple locking blocks 10 abut against the upper interior of the sealing rod 6. The upper part of the sealing rod 6 is provided with a sealing assembly, which is used to prevent leakage of pipeline media.

[0025] Reference Figure 1 、 Figure 2 and Figure 4 The sealing group includes an outer sealing ring layer 13, which can play a sealing function. The outer sealing ring layer 13 is made of stainless steel. Stainless steel has good ductility and can well fill the gap between the blocking rod 6 and the blocking four-way tube 7. The outer sealing ring layer 13 is sleeved on the upper periphery of the blocking rod 6. The interior of the outer sealing ring layer 13 is fixedly connected to the inner sealing ring layer 14. The inner sealing ring layer 14 can play a role in supporting the outer sealing ring layer 13. The inner sealing ring layer 14 is made of lead. The hardness of lead is relatively low and it can be deformed under a large force, which can ensure that the outer sealing ring layer 13 will not collapse when deformed.

[0026] Working principle: When using the device, first install the two blocking four-way pipes 7 on the left and right sides of the blocking section of the pipe to be blocked 12, then use multiple bolts 15 to abut and install the blocking valve 8 on the upper part of one of the blocking four-way pipes 7, use multiple bolts 15 to connect the blocking coupler 2 and the hole-opening device on the upper part of the blocking valve 8, and then start drilling. After the hole-opening is completed, close the blocking valve 8 and remove the hole-opening device, use multiple bolts 15 to install the blocking machine 1, start the blocking machine 1 to push the pull rod 3 and the connector 4 down, the connector 4 pushes the connector 5 down, and the connector 5 pushes the blocking rod 6 into the inside of the blocking four-way pipe 7, The blocking rod 6 will abut against the adjacent sides of the two pipes 12 to be blocked. When the blocking rod 6 is pushed to the predetermined position, a tool is used to rotate the multiple locking rods 9. The multiple locking rods 9 push the multiple locking blocks 10 to slide close to each other. The multiple locking blocks 10 abut and lock inside the upper part of the blocking rod 6, thereby completing the installation of the blocking rod 6. Similarly, another blocking rod 6 is installed inside the other blocking four-way pipe 7 according to the above steps. According to the length of the blocking section of the pipe 12 to be blocked, a tool is used to open a number of glue injection holes in the middle of the blocking section of the pipe 12 to be blocked, and a number of glue injection valves are installed at the several glue injection holes. A number of glue injection tools are used to install them in the several glue injection holes. The interior of the valve is filled with high-temperature resistant sealant into the interior of the sealing section of the pipe to be sealed 12 through a plurality of injection valves. The combination of multiple sets of injection tools and injection valves can speed up the injection work of the sealing section of the pipe to be sealed 12. The high-temperature resistant sealant is filled in the contact surface between the two sealing rods 6 and the two pipes to be sealed 12 and the interior of the sealing section of the pipe to be sealed 12. The internal parameters of the pipeline are measured using tools. After the parameters are qualified, the two blind plates are installed. The plugging machine 1 is started to drive the pull rod 3 to rotate so that the main shaft of the plugging machine 1 and the plugging coupler 2 are disengaged, and the pull rod 3 and the connector 4 are also separated. The multiple bolts between the plugging machine 1 and the pull rod 3 are removed. 5 Remove the plugging machine 1 from the upper part of the plugging coupler 2, and then use the same method to remove the plugging coupler 2 and the plugging valve 8 in turn, use a tool to rotate the two bolts 2 16, the two bolts 2 16 disengage from the locking connector 5, and then remove the connector 4, use a tool to remove multiple bolts 3 17 to separate the connector 5 and the plugging rod 6, take out the connector 5, use multiple bolts 1 15 to abut and install blind plates on the upper part of the two plugging four-way pipes 7 for sealing, wherein the outer layer 13 of the sealing ring can play the function of sealing the plugging rod 6 and the plugging four-way pipe 7, and the inner layer 14 of the sealing ring can prevent the outer layer 13 of the sealing ring from collapsing.

[0027] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high-temperature pipeline plugging device, comprising a plugging machine (1), characterized in that: The plugging machine (1) is internally slidably connected to a pull rod (3), the lower part of the plugging machine (1) is in contact with a plugging coupler (2), the lower part of the plugging coupler (2) is in contact with a plugging valve (8), the lower part of the plugging valve (8) is in contact with a plugging four-way pipe (7), the left and right sides of the plugging four-way pipe (7) are fixedly connected to the pipe to be plugged (12), the lower end of the pull rod (3) is threadedly connected to a connector (4), the upper end of the connector (5) is internally slidably connected to the upper end of the connector (5), and the lower part of the connector (5) is in contact with a plugging rod ( 6), the blocking rod (6) is slidably connected to the inner middle part of the blocking four-way tube (7), the upper outer periphery of the blocking four-way tube (7) is threadedly connected with a plurality of evenly distributed locking rods (9), and the adjacent ends of the plurality of locking rods (9) are rotatably connected with locking blocks (10), and the plurality of locking blocks (10) are respectively slidably connected to the upper inner part of the blocking four-way tube (7), and the plurality of locking blocks (10) abut against the upper inner part of the blocking rod (6), and a sealing assembly is provided on the upper part of the blocking rod (6), and the sealing assembly is used to prevent leakage of pipeline medium.

2. The high-temperature pipeline blocking device according to claim 1, characterized in that: The sealing group comprises a sealing ring outer layer (13), the sealing ring outer layer (13) is sleeved on the upper outer periphery of the blocking rod (6), and the interior of the sealing ring outer layer (13) is fixedly connected to a sealing ring inner layer (14).

3. The high-temperature pipeline plugging device according to claim 1, characterized in that: The left and right sides of the connecting head (4) are both threadedly connected with bolts 2 (16), and the two bolts 2 (16) are respectively abutted against the left and right sides of the upper part of the connector (5).

4. The high-temperature pipeline plugging device according to claim 1, characterized in that: The lower part of the plugging machine (1) and the edge of the upper part of the plugging coupler (2) are threadedly connected with a plurality of evenly distributed bolts (15), the plurality of evenly distributed bolts (15) are threadedly connected to the lower part of the plugging coupler (2) and the edge of the upper part of the plugging valve (8), the plurality of evenly distributed bolts (15) are threadedly connected to the lower part of the plugging valve (8) and the edge of the upper part of the plugging four-way pipe (7), and the lower part of the connector (5) and the upper part of the plugging rod (6) are threadedly connected with a plurality of evenly distributed bolts (17).

5. The high-temperature pipeline plugging device according to claim 1, characterized in that: The interior of the blocking rod (6) is hollow, and the blocking rod (6) is made of stainless steel. The blocking rod (6) abuts against adjacent sides of the two tubes (12) to be blocked.

6. The high-temperature pipeline plugging device according to claim 1, characterized in that: A plurality of evenly distributed locking grooves (11) are provided inside the upper portion of the blocking four-way pipe (7), and the plurality of locking blocks (10) slide inside the plurality of locking grooves (11) respectively.

7. The high-temperature pipeline plugging device according to claim 2, characterized in that: The outer layer (13) of the sealing ring is made of stainless steel.

8. The high-temperature pipeline plugging device according to claim 2, characterized in that: The inner layer (14) of the sealing ring is made of lead.

Images