Pipeline leakage stopper with pressure

Abstract

The utility model discloses a pipeline leak stopper under pressure, which comprises a die cylinder, a double-screwed plug, a glue injection ejector rod and a stress application rod, the die cylinder is sleeved outside the double-screwed plug, and the glue injection ejector rod is arranged in the double-screwed plug in a penetrating manner; a nut is arranged at the top of the double-thread plug, a through hole penetrates through the center of the double-thread plug and the center of the nut, a double-thread plug internal thread is arranged in the through hole, and a double-thread plug external thread is arranged outside the double-thread plug; an arc-shaped surface is arranged at the bottom end of the die cylinder, die cylinder internal threads are arranged on the inner wall of the die cylinder, and pressure relief holes penetrate through the side wall of the die cylinder; a stress application rod through hole is formed in the extending section of the glue injection ejector rod in a penetrating manner; a thread of the screw rod is meshed with an internal thread of the double-thread plug; and the stress application rod penetrates through the stress application rod through hole. According to the utility model, the leakage point of the pipeline in operation can be effectively blocked, and the economic loss caused by the shutdown processing of the leakage point of a pipeline system is avoided. The pipeline sand hole plugging device is simple and compact in structure, easy to process and manufacture, safe and simple to operate and capable of rapidly plugging pipeline sand holes under pressure to eliminate equipment hidden dangers.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipeline sand hole water and steam leakage maintenance in industrial and agricultural production, and particularly relates to a pipeline pressure plugging device. Background Art

[0002] In industrial and agricultural production, water and steam pipeline systems are distributed in each production link. Due to pipeline corrosion or the existence of sand holes, etc., the leakage of water and steam media inside the pipeline is caused. To deal with the leakage, the pipeline system needs to be isolated and shut down for maintenance, resulting in economic losses to the enterprise production or bringing troubles to people's daily life. A pipeline pressure plugging device can effectively solve the problem of pipeline sand hole leakage under pressure, avoiding the economic losses caused by the shutdown of the system pipeline and the troubles in people's daily life. Content of the Utility Model

[0003] The purpose of the utility model is to provide a pipeline pressure plugging device to solve the problem of pressure plugging for pipeline sand hole leakage.

[0004] To achieve the above purpose, the technical scheme adopted by the utility model is as follows:

[0005] A pipeline pressure plugging device includes a die barrel, a double wire plug, a glue injection ejector rod and a force increasing rod. The die barrel is sleeved outside the double wire plug, and the glue injection ejector rod is arranged inside the double wire plug;

[0006] A nut is arranged at the top of the double wire plug. A through hole is arranged through the center of the double wire plug and the nut. Internal threads of the double wire plug are arranged on the inner wall of the through hole, and external threads of the double wire plug are arranged on the outer wall of the double wire plug;

[0007] An arc surface is arranged at the bottom end of the die barrel. Internal threads of the die barrel meshing with the external threads of the double wire plug are arranged on the inner wall of the die barrel, and a pressure relief hole is arranged through the side wall of the die barrel;

[0008] The glue injection ejector rod includes an extending section, a screw rod and a fixing section which are sequentially connected from top to bottom. A force increasing rod through hole perpendicular to the central axis of the glue injection ejector rod is arranged on the extending section, and the thread of the screw rod meshes with the internal threads of the double wire plug;

[0009] The force increasing rod is arranged in the force increasing rod through hole.

[0010] To further implement the utility model, the arc surface of the die barrel matches the radian of the plugging pipe diameter. The arc surface can better match the radian of the plugging pipe diameter, improving the sealing property.

[0011] To further implement the utility model, at least two pressure relief holes are symmetrically arranged, and the pressure relief holes are arranged at the 1 / 2 height of the die barrel.

[0012] To further implement the present utility model, a fixing hole is provided at the bottom end of the through hole. The height of the fixing hole is matched with the height of the fixing section, and the inner wall of the fixing hole is in fit with the outer wall of the fixing section.

[0013] To further implement the present utility model, the sum of the lengths of the screw rod and the fixing section is greater than the length of the through hole.

[0014] To further implement the present utility model, the cross-section of the protruding section is square.

[0015] To further implement the present utility model, fixing handles and disassembly and assembly handles are respectively provided at both ends of the force applying rod. At the end where the force applying rod is connected to the disassembly and assembly handle, a handle screw hole and a handle screw rod that cooperate with each other are respectively provided.

[0016] The beneficial effects of the present utility model compared with the prior art are as follows:

[0017] The lower end of the die barrel of the present utility model is equidistantly buckled around the pipeline leakage point and welded to the pipeline as a whole. The double wire plug is screwed into the die barrel to achieve the first pressure - retaining plugging of the pipeline leakage. The pressure - relief hole can play a role in diverting and relieving pressure for water and steam media during plugging; the injection - glue ejector rod is rotated to penetrate into the through hole. Through the thread of the screw rod engaging with the internal thread of the double wire plug, the second pressure - retaining plugging of the pipeline leakage is achieved. Further, sealant is added into the through hole, and the sealant is extruded into the internal thread of the double wire plug through the thread of the screw rod, thereby sealing the gap in the thread; the force applying rod is installed on the injection - glue ejector rod for rotating the injection - glue ejector rod.

[0018] The present utility model can effectively plug the leakage point of the operating pipeline, avoiding the economic loss caused by the shutdown of the pipeline system for dealing with the leakage point.

[0019] The application of the present utility model can implement the plugging and repair of pipeline sand holes under the normal operation state of the pipeline system. It is more scientific and practical than the traditional maintenance method of isolating and shutting down the pipeline system for repair welding, and does not affect the normal production organization and economic benefits.

[0020] The structure of the present utility model is simple and compact, easy to process and manufacture, safe and simple to operate, and can quickly plug the pipeline sand hole to eliminate equipment hidden dangers.

[0021] The present utility model is reasonably designed, ingeniously conceived, low in processing cost, safe and reliable, and has practicability and popularization. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is the structural schematic diagram of the present utility model;

[0023] Figure 2 is the structural schematic diagram of the double wire plug in the present utility model;

[0024] Figure 3 Structural schematic diagram of the die barrel in the present utility model;

[0025] Figure 4 Structural schematic diagram of the glue injection ejector rod in the present utility model;

[0026] Figure 5 Structural schematic diagram of the force - adding rod in the present utility model;

[0027] The meanings of the reference numerals are as follows: 1. Die barrel; 2. Double - wire plug; 3. Glue injection ejector rod; 4. Force - adding rod; 5. Through - hole; 6. Inner thread of double - wire plug; 7. Outer thread of double - wire plug; 8. Arc surface; 9. Inner thread of die barrel; 10. Pressure - relief hole; 11. Extended section; 12. Screw rod; 13. Fixed section; 14. Perforation for force - adding rod; 15. Fixed hole; 16. Fixed handle; 17. Disassembly and assembly handle; 18. Handle screw hole; 19. Handle screw rod; 20. Nut. Detailed implementation manners

[0028] The present utility model will be further described below in conjunction with the drawings and detailed implementation manners.

[0029] As Figures 1-5 shown, a pipeline pressure - tight plugging device includes a die barrel 1, a double - wire plug 2, a glue injection ejector rod 3 and a force - adding rod 4. The die barrel 1 is sleeved outside the double - wire plug 2, and the glue injection ejector rod 3 passes through the inside of the double - wire plug 2;

[0030] A nut 20 is arranged at the top of the double - wire plug 2. A through - hole 5 passes through the center of the double - wire plug 2 and the nut 20. A fixed hole 15 is arranged at the bottom end of the through - hole 5. An inner thread 6 of the double - wire plug is arranged on the inner wall of the through - hole 5, and an outer thread 7 of the double - wire plug is arranged on the outer wall of the double - wire plug 2;

[0031] An arc surface 8 is arranged at the bottom end of the die barrel 1. The arc surface 8 is matched with the radian of the plugging pipe diameter. An inner thread 9 of the die barrel meshing with the outer thread 7 of the double - wire plug is arranged on the inner wall of the die barrel 1. A pressure - relief hole 10 passes through the side wall of the die barrel 1. At least two pressure - relief holes 10 are symmetrically arranged, and the pressure - relief holes 10 are arranged at 1 / 2 of the height of the die barrel 1;

[0032] The glue injection ejector rod 3 includes an extended section 11, a screw rod 12 and a fixed section 13 which are sequentially connected from top to bottom. The sum of the lengths of the screw rod 12 and the fixed section 13 is greater than the length of the through - hole 5. The cross - section of the extended section 11 is square. A perforation 14 for the force - adding rod perpendicular to the central axis of the glue injection ejector rod 3 passes through the extended section 11. The thread of the screw rod 12 meshes with the inner thread 6 of the double - wire plug. The height of the fixed section 13 is matched with the height of the fixed hole 15, and the outer wall of the fixed section 13 fits with the inner wall of the fixed hole 15;

[0033] The force - increasing rod 4 is inserted into the force - increasing rod through - hole 14. Fixed handles 16 and disassembly - and - assembly handles 17 are respectively arranged at both ends of the force - increasing rod 4. At one end of the force - increasing rod 4 connected to the disassembly - and - assembly handle 17, a handle screw hole 18 and a handle screw rod 19 which cooperate with each other are respectively arranged.

[0034] During operation, the arc surface at the lower end of the die barrel 1 is attached to the arc surface of the pipeline at the leakage point and buckled around the pipeline leakage point at an equal distance. The die barrel 1 and the pipeline are welded into one body. Rotate the nut 20 to make the internal thread 9 of the die barrel of the die barrel 1 tightly engage with the external thread 7 of the double - wire plug, realizing the first - stage plugging of the pipeline leakage; inject sealant into the through - hole 5, then insert the injection rod 3 into the double - wire plug 2, and rotate the injection rod 3 to make the thread of the screw rod 12 engage with the internal thread 6 of the double - wire plug and extrude the sealant to overflow, thereby sealing the gap between the double - wire plug 2 and the die barrel 1 and the threaded engagement gap between the double - wire plug 2 and the injection rod 3, realizing the second - stage precise plugging of the leakage; finally, weld the joints of the die barrel 1, the double - wire plug 2 and the injection rod 3 to achieve the full - seal wrapping of the pipeline leakage point with metal materials.

[0035] Before rotating the injection rod 3, turn the disassembly - and - assembly handle 17 to take out the handle screw rod 19 from the handle screw hole 18, then insert the force - increasing rod 4 into the force - increasing rod through - hole 14, and reconnect the disassembly - and - assembly handle 17 to the force - increasing rod 4, then the injection rod 3 can be rotated with the help of the force - increasing rod 4.

Claims

1. A pipeline pressure plugging device, characterized in that: It comprises a mold barrel (1), a double-thread plug (2), a glue injection ejector rod (3) and a force rod (4), wherein the mold barrel (1) is sleeved on the outside of the double-thread plug (2), and the glue injection ejector rod (3) is inserted into the inside of the double-thread plug (2); A nut (20) is arranged on the top of the double-thread plug (2), a through hole (5) is formed in the center of the double-thread plug (2) and the nut (20), a double-thread plug inner thread (6) is arranged on the inner wall of the through hole (5), and a double-thread plug outer thread (7) is arranged on the outer wall of the double-thread plug (2); The bottom end of the mold barrel (1) is provided with an arc-shaped surface (8), the inner wall of the mold barrel (1) is provided with a mold barrel inner thread (9) meshing with the double-thread plug outer thread (7), and a pressure relief hole (10) is penetrated on the side wall of the mold barrel (1); The injection ejector rod (3) comprises an extension section (11), a screw rod (12) and a fixed section (13) which are connected in sequence from top to bottom; a force rod through hole (14) which is perpendicular to the central axis of the injection ejector rod (3) is formed on the extension section (11); and the screw thread (12) is meshed with the inner thread (6) of the double-thread plug; The force rod (4) is inserted into the force rod through hole (14).

2. The pipeline pressure plugging device according to claim 1, characterized in that: The arc surface (8) of the mold barrel (1) matches the arc of the plugging pipe diameter.

3. The pipeline pressure plugging device according to claim 1 or 2, characterized in that: At least two pressure relief holes (10) are symmetrically arranged, and the pressure relief holes (10) are arranged at 1 / 2 of the height of the mold cylinder (1).

4. The pipeline pressure plugging device according to claim 3 is characterized in that: A fixing hole (15) is provided at the bottom end of the through hole (5); the height of the fixing hole (15) matches the height of the fixing section (13); and the inner wall of the fixing hole (15) fits the outer wall of the fixing section (13).

5. The pipeline pressure plugging device according to claim 4, characterized in that: The sum of the lengths of the screw rod (12) and the fixing section (13) is greater than the length of the through hole (5).

6. The pipeline pressure plugging device according to claim 5, characterized in that: The cross section of the extended section (11) is square.

7. The pipeline pressure plugging device according to claim 6, characterized in that: A fixed handle (16) and a disassembly handle (17) are respectively provided at both ends of the force-adding rod (4), and a handle screw hole (18) and a handle screw rod (19) which cooperate with each other are respectively provided at one end of the force-adding rod (4) connected to the disassembly handle (17).

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