Non-stop pipeline pressure tapping and plugging device

Abstract

The utility model relates to the field of pipeline pressure tapping, in particular to a non-stop pipeline pressure tapping plugging device which comprises an installation shell, a tapper, a first hemispherical pipe fitting and the like. A through hole I is formed in the mounting shell; the mounting shell is fixedly connected with a tapper, and the tapper communicates with the first through hole. The mounting shell is fixedly connected with a hemispherical pipe fitting I; a through hole II is formed in the mounting shell; the first hemispherical pipe fitting is provided with a perforated through groove, and the perforated through groove is communicated with the second through hole. Through the arrangement of a mounting ring, a sliding block, a first spring, a fixing ring, an inserting rod, a ball head rod, a second spring and a piston disc, the integrated operation of pipeline tapping under pressure and spherical three-way pipe fitting plugging can be achieved, repeated dismounting work is not needed, and the phenomenon that in the process of newly adding a branch pipe on a pipeline under pressure, the pipeline is damaged is avoided. The problems that when an existing tapping machine with pressure is adopted for tapping operation, repeated dismounting work needs to be carried out, the whole tapping process is troublesome and complex, and the overall efficiency of additionally arranging branch pipes on a pipeline with pressure is seriously affected are solved.

Description

Technical Field

[0001] This utility model relates to the field of live pipeline tapping, and in particular to a live pipeline tapping and sealing device that does not interrupt pipeline operation. Background Technology

[0002] In the process of adding a branch pipe to a pressurized pipeline, a pressurized tapping machine consisting of a clamp valve, a tapping tool, and a plug is usually used to tap the pipeline to achieve the addition of a branch pipe without interrupting pipeline operation.

[0003] However, the existing hot tapping machine's specific steps for tapping pipes are as follows: First, a spherical tee fitting consisting of two hemispherical pipe fittings is manually welded to the pipe, and the branch pipe is welded to the spherical tee fitting. Then, a clamp valve is manually installed on the spherical tee fitting, and a tapping tool is installed on the clamp valve. The pipe is then tapped using the tapping tool. After tapping, the clamp valve is closed, and the tapping tool is removed from the clamp valve. Then, a lower plug equipped with a piston disc is installed on the clamp valve. The clamp valve is then opened, and the piston disc is installed inside the spherical tee fitting through the lower plug to seal the spherical tee fitting. Finally, the lower plug and clamp valve are removed in sequence. Therefore, in the process of adding a branch pipe to a pressurized pipeline, the existing hot tapping machine requires repeated disassembly work. The entire tapping process is troublesome and complicated, seriously affecting the overall efficiency of adding a branch pipe to a pressurized pipeline. Utility Model Content

[0004] To overcome the shortcomings of existing live tapping machines, which require repeated disassembly and are cumbersome and complex when adding branch pipes to pressurized pipelines, thus severely affecting the overall efficiency of adding branch pipes to pressurized pipelines, this utility model provides a live tapping and sealing device for pipelines that does not require interruption of transportation.

[0005] The technical solution of this utility model is as follows: a live-line sealing device for a non-stop pipeline under pressure, comprising a mounting shell, a hole opener, a hemispherical fitting one, and a hemispherical fitting two; the mounting shell has a through hole one; the hole opener is fixedly connected to the mounting shell, and the hole opener communicates with the through hole one; the hemispherical fitting one is fixedly connected to the mounting shell; the mounting shell has a through hole two; the hemispherical fitting one has a through slot, and the through slot communicates with the through hole two; the hemispherical fitting one is fixedly connected to the hemispherical fitting two; it also includes a mounting ring, a sliding block, a spring one, a fixing ring, a plug rod, a ball head rod, a spring two, a piston disc, a pulling assembly, and a pushing assembly; the mounting shell has an inlet; the mounting shell is fixedly connected to a sealing disc; the mounting shell is slidably connected to a mounting ring, and the mounting ring is located at the inlet... Directly above the feed inlet; several sliding blocks are slidably connected to the mounting ring; each sliding block is fixedly connected to a spring 1, and all springs 1 are fixedly connected to the mounting ring; all sliding blocks are connected to a fixing ring; the fixing ring is fixedly connected to multiple insert rods; each insert rod is slidably connected to a ball head rod; each ball head rod is fixedly connected to a spring 2, and each spring 2 is fixedly connected to a corresponding insert rod; all insert rods are detachably connected to a piston disc for sealing the through-hole, and the piston disc engages with all ball head rods; the mounting shell is connected to a pulling assembly for moving the mounting ring and its connected parts; the mounting shell is connected to a pushing assembly for moving the fixing ring and its connected parts.

[0006] Furthermore, the pull assembly includes a long rod, a connecting plate, and a handle; at least one long rod is fixedly connected to the mounting ring, and the long rod is slidably connected to the mounting housing; the long rod is fixedly connected to the connecting plate; and the connecting plate is fixedly connected to the handle.

[0007] Furthermore, the actuating assembly includes a push rod, a connecting ring, a spring three, and a handle two; the mounting housing is connected to several push rods; all push rods are connected to the connecting ring; each push rod is fitted with a spring three, and all spring three are fixedly connected to the connecting ring and to the mounting housing; the connecting ring is connected to at least two handle two.

[0008] Furthermore, it also includes protrusions; the piston disc is fixed with several protrusions; the feed inlet is provided with positioning groove 1 matching the number of protrusions, and each positioning groove 1 coincides with the axis of the corresponding insertion rod; the mounting ring is provided with positioning groove 2 matching the number of positioning groove 1, and each positioning groove 2 is aligned with the corresponding positioning groove 1.

[0009] Furthermore, it also includes a rotating ring one and a rotating ring two; the through-hole slot is provided with vertical grooves matching the number of protrusions, and each vertical groove is provided with an arc-shaped groove that cooperates with the protrusions to stably block the piston disc from sealing the through-hole slot; all sliding blocks are jointly fixedly connected to rotating ring one, and rotating ring one is rotatably connected to fixed ring; fixed ring is provided with circular grooves matching the number of push rods, and the circular grooves match the push rods; rotating ring two is rotatably connected to the mounting shell, and rotating ring two is slidably connected to all push rods, and rotating ring two is fixedly connected to all springs three.

[0010] Furthermore, the lower end of the push rod is designed to be frustum-shaped.

[0011] The beneficial effects of this utility model are as follows: By setting up the mounting ring, sliding block, spring one, fixing ring, insertion rod, ball head rod, spring two and piston plate, it is possible to realize the integrated operation of pipe hot tapping and ball tee plugging without repeated disassembly. This avoids the problem that when adding a branch pipe to a pressurized pipeline, the existing hot tapping machine requires repeated disassembly, which is troublesome and complicated and seriously affects the overall efficiency of adding a branch pipe to a pressurized pipeline.

[0012] The positioning groove one, positioning groove two and the protrusion cooperate to facilitate the insertion of the insertion rod into the piston plate;

[0013] The piston disc is stably secured within the opening groove by the cooperation of the protrusion and the arc groove, thus avoiding the problem of unstable sealing of the opening groove by the piston disc under the pressure inside the pipe. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural schematic diagram of the live-line opening and sealing device for non-stop pipelines disclosed in this utility model.

[0015] Figure 2 This is a schematic diagram of the internal structure of the mounting shell of the live pipeline pressurized opening and sealing device disclosed in this utility model;

[0016] Figure 3 This is a bottom view of the mounting shell structure of the live pipeline opening and sealing device disclosed in this utility model;

[0017] Figure 4 This is a sectional view of the installation ring of the live opening and sealing device for non-stop pipelines disclosed in this utility model;

[0018] Figure 5 This is a schematic diagram of the structure of hemispherical fitting one and hemispherical fitting two of the live opening and sealing device for non-stop pipelines disclosed in this utility model;

[0019] Figure 6This is a schematic diagram of the internal plan of the mounting shell of the live pipeline pressurized opening and sealing device of this utility model;

[0020] Figure 7 This is a diagram showing the state of the mounting shell and its connected parts of the live pipeline opening and sealing device disclosed in this utility model when installed on a spherical tee fitting composed of hemispherical fitting one and hemispherical fitting two.

[0021] Reference numerals: 1-Mounting shell, 2-Hole opener, 3-Hemispherical fitting one, 4-Hemispherical fitting two, 5-Mounting ring, 6-Sliding block, 7-Spring one, 8-Fixing ring, 9-Insertion rod, 10-Ball head rod, 11-Spring two, 12-Piston disc, 111-Long rod, 112-Connecting plate, 113-Handle one, 121-Push rod, 122-Connecting ring, 123-Spring three, 124-Handle two, 131-Protrusion, 211-Rotating ring one, 212-Rotating ring two, 101-Through hole one, 102-Through hole two, 103-Inlet, 104-Sealing disc, 105-Positioning groove one, 301-Opening through groove, 302-Vertical groove, 303-Arc groove, 501-Positioning groove two, 801-Circular groove. Detailed Implementation

[0022] The present invention will now be described in detail with reference to the accompanying drawings.

[0023] Example 1

[0024] A live-line sealing device for uninterrupted pipelines under pressure, such as Figures 1-7 As shown, it includes a mounting shell 1, a hole opener 2, a hemispherical fitting 3, and a hemispherical fitting 4; the mounting shell 1 has a through hole 101; the mounting shell 1 is bolted to the hole opener 2 for making holes in the pipe, and the hole opener 2 communicates with the through hole 101; the mounting shell 1 is bolted to the hemispherical fitting 3; the mounting shell 1 has a through hole 102; the hemispherical fitting 3 has an opening groove 301, and the opening groove 301 communicates with the through hole 102; the hemispherical fitting 3 is fixedly connected to the hemispherical fitting 4, which cooperates with it to form a spherical tee fitting;

[0025] It also includes a mounting ring 5, sliding blocks 6, spring 1 7, fixing ring 8, insert rod 9, ball head rod 10, spring 2 11, piston disc 12, pulling assembly, and pushing assembly; the mounting shell 1 has an inlet 103; the mounting shell 1 is bolted to a sealing disc 104 for sealing the inlet 103; the mounting shell 1 is slidably connected to the mounting ring 5, which is located directly above the inlet 103; the mounting ring 5 is slidably connected to four sliding blocks 6; each sliding block 6 is fixedly connected to a spring 1 7. All springs 7 are fixedly connected to the mounting ring 5; all sliding blocks 6 are connected to a fixing ring 8; the fixing ring 8 is fixedly connected to four insert rods 9; each insert rod 9 is slidably connected to a ball head rod 10; each ball head rod 10 is fixedly connected to a spring 11, and each spring 11 is fixedly connected to the corresponding insert rod 9; all insert rods 9 are detachably connected to a piston disc 12, and the piston disc 12 is engaged with all ball head rods 10; the mounting shell 1 is connected to a pulling assembly; the mounting shell 1 is connected to a pushing assembly.

[0026] The pulling assembly includes a long rod 111, a connecting plate 112, and a handle 113; the mounting ring 5 is fixedly connected to two long rods 111, and all long rods 111 are slidably connected to the mounting shell 1; all long rods 111 are fixedly connected to the connecting plate 112; the connecting plate 112 is bolted to the handle 113.

[0027] The pushing assembly includes a pushing rod 121, a connecting ring 122, a spring 123, and a handle 124; the mounting housing 1 is connected to four pushing rods 121; all pushing rods 121 are connected to the connecting ring 122; each pushing rod 121 is fitted with a spring 123, and all springs 123 are fixed to the connecting ring 122 and connected to the mounting housing 1; the connecting ring 122 is connected to two handles 124.

[0028] It also includes a protrusion 131; the piston disc 12 is fixedly connected with four protrusions 131; the feed port 103 is provided with four positioning grooves 105, each positioning groove 105 is aligned with the axis of the corresponding insertion rod 9; the mounting ring 5 is provided with four positioning grooves 501, each positioning groove 501 is aligned with the corresponding positioning groove 105, and the positioning grooves 105, positioning grooves 501 and protrusions 131 cooperate to facilitate the insertion of the insertion rod 9 into the piston disc 12.

[0029] It also includes a rotating ring 1 211 and a rotating ring 212; the through slot 301 has four vertical slots 302, each of which has an arc-shaped slot 303; all sliding blocks 6 are fixedly connected to the rotating ring 1 211, and the rotating ring 1 211 is rotatably connected to the fixed ring 8; the fixed ring 8 has four circular slots 801, which match the push rod 121; the mounting shell 1 is rotatably connected to the rotating ring 212, and the rotating ring 212 is slidably connected to all the push rods 121, and the rotating ring 212 is fixedly connected to all the springs 3 123.

[0030] The lower end of the push rod 121 is configured as a frustum, which is used to allow the push rod 121 to be better inserted into the circular groove 801.

[0031] The specific process of hot tapping a pipe is as follows: Figure 7 As shown, firstly, the spherical tee fitting, consisting of hemispherical fitting 1 (3) and hemispherical fitting 2 (4), is manually welded to the pipe, and the branch pipe is welded to the spherical tee fitting. Then, the mounting shell 1 and its connected parts are installed on the spherical tee fitting. Next, the hole opener 2 is activated, causing the power structure inside the hole opener 2 to drive its drill bit downward until the drill bit inside the hole opener 2 passes through through hole 101, mounting shell 1, through hole 2 (102), and opening through groove 301 in sequence and contacts the pipe. Then, the power structure inside the hole opener 2 is controlled to drive its drill bit to continue moving downward while rotating, so as to open a hole in the pipe.

[0032] After the hole is drilled, the power structure inside the hole opener 2 drives the drill bit back to its initial position. Then, the operator manually moves the mounting ring 5 and its connected parts towards the opening slot 301 by sequentially using handle 113, connecting plate 112, and long rod 111 until the piston disc 12 is directly above the opening slot 301. At this time, the push rod 121 is directly above the fixing ring 8. Then, the operator manually pushes the push rod 121 downward by sequentially using handle 2124 and connecting ring 122, and compresses spring 3123. This causes the push rod 121 to push the sliding block 6 downward on the mounting ring 5 through the fixing ring 8, and compresses spring 17. This causes the fixing ring 8 to push the insert rod 9, ball head rod 10, spring 21, and piston disc 12 downward, so that the piston disc 12 passes through the through hole 2102 and is inserted into the opening slot 301, sealing the opening slot 301. Then, the operator manually releases handle 2124. At this time, spring 211 will push... Push rod 121, connecting ring 122 and handle 124 move upward to return to their initial positions. At the same time, spring 7 pushes sliding block 6, fixing ring 8, insert rod 9, ball head rod 10 and spring 11 upward. During this process, since piston disc 12 is already inserted into the through slot 301, piston disc 12 will remain stationary. In this case, when ball head rod 10 is subjected to an upward force, the ball head of ball head rod 10 will move away from the spherical locking point set in piston disc 12 and compress spring 11. That is, the ball head of ball head rod 10 will exit from the spherical locking point set in piston disc 12. After manually releasing handle 124, insert rod 9 will be pushed out of piston disc 12 by spring 7, while piston disc 12 will remain inserted into through slot 301. Finally, the mounting shell 1 and its connected parts are removed from the spherical tee fitting, thus completing the pressurized pipe tapping operation.

[0033] By installing ring 5, sliding block 6, spring 1 7, fixing ring 8, insertion rod 9, ball head rod 10, spring 2 11, and piston disc 12, the integrated operation of hot tapping of pipes and sealing of ball tee fittings can be achieved without repeated disassembly. This avoids the problem that when adding a branch pipe to a pressurized pipeline, the existing hot tapping machine requires repeated disassembly, which is troublesome and complicated and seriously affects the overall efficiency of adding a branch pipe to a pressurized pipeline.

[0034] The specific process for installing the piston disc 12 is as follows: First, manually unscrew the screw on the sealing disc 104 using a wrench to remove the sealing disc 104 from the inlet 103. Then, push the piston disc 12 horizontally through the inlet 103 into the mounting ring 5 until the insertion rod 9 is inserted as shown. Figure 4When inserted into the insertion hole on the piston disc 12 as shown, the ball head of the ball rod 10 will be inserted into the spherical locking point on the piston disc 12, and the ball head of the ball rod 10 will be stably locked into the spherical locking point on the piston disc 12 under the action of the spring 11, so that the piston disc 12 is stably fixed on the insertion rod 9. Finally, the sealing disc 104 is manually reinstalled on the feed inlet 103.

[0035] It should be noted that since the first positioning groove 105 coincides with the axis of the insertion rod 9, and the second positioning groove 501 is aligned with the first positioning groove 105, it is only necessary to manually insert the protrusion 131 into the first positioning groove 105. During the process of pushing the piston disc 12 into the mounting ring 5, after the protrusion 131 passes through the first positioning groove 105 and the second positioning groove 501 in sequence, the insertion rod 9 will be inserted into the insertion hole provided on the piston disc 12. In this way, the cooperation of the first positioning groove 105, the second positioning groove 501 and the protrusion 131 facilitates the insertion of the insertion rod 9 into the piston disc 12.

[0036] Furthermore, considering that there is pressure inside the pipe, and the piston disc 12 is only stuck in the opening groove 301 by friction, the sealing of the opening groove 301 by the piston disc 12 will be unstable under the pressure inside the pipe.

[0037] Therefore, rotating ring 211 and rotating ring 212 are added, a vertical groove 302 is added to the through-hole groove 301, an arc groove 303 is provided on the vertical groove 302, and a circular groove 801 is provided on the fixing ring 8. When the piston disc 12 is directly above the through-hole groove 301, the push rod 121 will be directly above the circular groove 801, and the protrusion 131 will be directly above the vertical groove 302. Therefore, when the piston disc 12 is stuck in the through-hole groove 301, the push rod 121 will be inserted into the circular groove 801, and the protrusion 131 will be at the connection between the vertical groove 302 and the arc groove 303. After entering the groove 301, using a top-down view as a reference, the operator sequentially uses handle 124, connecting ring 122, and push rod 121 to rotate the fixing ring 8 clockwise by 40 degrees on the rotating ring 211. This causes the fixing ring 8 to rotate the piston disc 12 and protrusion 131 via the insertion rod 9, so that the protrusion 131 rotates to the side of the arc groove 303 away from the vertical groove 302. This allows the piston disc 12 to be stably locked in the opening groove 301 by the protrusion 131 and the arc groove 303. This avoids the problem of unstable sealing of the opening groove 301 by the piston disc 12 under the pressure inside the pipe.

[0038] Those skilled in the art should understand that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by means of equivalent substitution or equivalent transformation fall within the protection scope of the present invention.

Claims

1. A live-line tapping and plugging device for a pipeline without interruption of transportation, comprising a mounting shell (1), a tapping tool (2), a hemispherical fitting one (3), and a hemispherical fitting two (4); the mounting shell (1) has a through hole one (101); the mounting shell (1) is fixedly connected to the tapping tool (2), and the tapping tool (2) communicates with the through hole one (101); the mounting shell (1) is fixedly connected to the hemispherical fitting one (3); the mounting shell (1) has a through hole two (102); the hemispherical fitting one (3) has a tapping groove (301), and the tapping groove (301) communicates with the through hole two (102); the hemispherical fitting one (3) is fixedly connected to the hemispherical fitting two (4); characterized in that: The mounting shell (1) has an inlet (103); the mounting shell (1) is fixedly connected to a sealing disc (104); the mounting shell (1) is slidably connected to a mounting ring (5), which is located directly above the inlet (103); the mounting ring (5) is slidably connected to several sliding blocks (6); each sliding block (6) is fixedly connected to a spring (7), and all springs (7) are fixedly connected to the mounting ring (5); all sliding blocks (6) are connected to a fixing ring (8); the fixing ring (8) is fixedly connected to several insert rods (9); each insert rod (9) is slidably connected to a Each ball joint (10) is fixedly connected to a second spring (11), and each second spring (11) is fixedly connected to a corresponding insert (9); all inserts (9) are detachably connected to a piston disc (12) for sealing the through slot (301), and the piston disc (12) is engaged with all ball joints (10); the mounting housing (1) is connected to a pulling assembly for moving the mounting ring (5) and its connected parts; the mounting housing (1) is connected to a pushing assembly for moving the fixed ring (8) and its connected parts.

2. The live-line sealing device for non-stop pipeline under pressure as described in claim 1, characterized in that: The pulling assembly includes a long rod (111), a connecting plate (112), and a handle (113); the mounting ring (5) is fixedly connected to at least one long rod (111), and the long rod (111) is slidably connected to the mounting shell (1); the long rod (111) is fixedly connected to the connecting plate (112); the connecting plate (112) is fixedly connected to the handle (113).

3. The live-line tapping and plugging device for a non-stop pipeline according to claim 2, characterized in that: The push assembly includes a push rod (121), a connecting ring (122), a spring three (123), and a handle two (124); the mounting shell (1) is connected to a plurality of push rods (121); all push rods (121) are connected to the connecting ring (122); each push rod (121) is fitted with a spring three (123), and all spring three (123) are fixedly connected to the connecting ring (122), and all spring three (123) are connected to the mounting shell (1); the connecting ring (122) is connected to at least two handle two (124).

4. The live-line tapping and plugging device for a non-stop pipeline as described in claim 3, characterized in that: It also includes protrusions (131); the piston disc (12) is fixed with several protrusions (131); the feed port (103) is provided with positioning groove one (105) matching the number of protrusions (131), and each positioning groove one (105) coincides with the axis of the corresponding insertion rod (9); the mounting ring (5) is provided with positioning groove two (501) matching the number of positioning groove one (105), and each positioning groove two (501) is aligned with the corresponding positioning groove one (105).

5. The live-line tapping and plugging device for a non-stop pipeline as described in claim 4, characterized in that: It also includes a rotating ring one (211) and a rotating ring two (212); the through slot (301) is provided with vertical slots (302) matching the number of protrusions (131), and each vertical slot (302) is provided with an arc-shaped slot (303) that cooperates with the protrusions (131) to stably block the piston disc (12) from the through slot (301); all sliding blocks (6) are fixedly connected to the rotating ring one (211), and the rotating ring one (211) is rotatably connected to the fixed ring (8); the fixed ring (8) is provided with a circular slot (801) matching the number of push rods (121), and the circular slot (801) matches the push rods (121); the mounting shell (1) is rotatably connected to the rotating ring two (212), and the rotating ring two (212) is slidably connected to all push rods (121), and the rotating ring two (212) is fixedly connected to all springs three (123).

6. The live-line tapping and plugging device for a non-stop pipeline according to claim 3, characterized in that: The lower end of the push rod (121) is set in the shape of a frustum.

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