A quick plugging device for oil and gas ground construction

Abstract

The application discloses an oil and gas ground construction technology field, and relates to a quick plugging device for oil and gas ground construction, which comprises a short pipe, a temporary plugging structure for temporarily plugging a damaged part of the pipe, a gate valve connected with the short pipe through a flange, a pipe opening machine, a block device capable of being connected with the gate valve through the flange and capable of blocking oil and gas in the pipe from passing through a damaged part of the pipe, and a sealing plate for sealing the short pipe. The block device comprises an outer shell capable of being connected with the gate valve through the flange, a lifting telescopic rod installed in the outer shell, a rotating pipe installed at the end of the lifting telescopic rod, outer sleeve pipes rotatably connected to the two sides of the rotating pipe, an inner sleeve pipe slidably connected with the outer sleeve pipes, and a block gas bag installed at the end of the inner sleeve pipe and the end of the outer sleeve pipe. The leaking part of the pipe is placed in a foldable pipe, and the two ends of the pipe are blocked, so that the foldable pipe is blocked from the pipe, thereby facilitating plugging of the leaking part.

Description

Technical Field

[0001] This invention relates to the field of oil and gas surface construction technology, specifically to a rapid leak sealing device for oil and gas surface construction. Background Technology

[0002] Oil pipelines (also known as pipelines or conduits) consist of oil pipes and their accessories, and are equipped with corresponding oil pump units according to the needs of the process flow, designed and installed into a complete pipeline system for completing oil unloading and transportation tasks. Natural gas pipelines refer to pipelines that transport natural gas (including associated gas produced from oil fields) from the extraction site or processing plant to urban gas distribution centers or industrial users; they are also called gas transmission pipelines.

[0003] With the increasing demands of energy development and people's lives, oil and gas pipelines are becoming longer and longer, making pipeline safety an increasingly important issue. Oil and gas pipelines are prone to breakage or damage under prolonged exposure to external environmental corrosion, internal oil and gas corrosion, and pressure, leading to oil and gas leaks. This not only pollutes the natural environment and poses a health hazard, but in severe cases, it can also cause personal injury or death.

[0004] Existing oil and gas pipelines are prone to leaks during use, which are then sealed using plugging devices. However, this process requires stopping the transport of oil and gas, disrupting its operation and making the process cumbersome and time-consuming. Summary of the Invention

[0005] The technical problem of the present invention is to provide a rapid leak sealing device for oil and gas surface construction, which inserts the pipeline leak into a foldable pipe and isolates both ends of the pipe, thereby separating the foldable pipe from the pipeline and facilitating the sealing of the leak.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a rapid leak-sealing device for oil and gas surface construction, comprising a short pipe welded to a pipeline for installing accessories, and a temporary leak-sealing structure installed on the pipeline by clamps for temporarily sealing the damaged part of the pipeline, thereby preventing further leakage of oil and gas in the pipeline.

[0007] A gate valve, connected to a short pipe via a flange, controls the opening and closing of the short pipe to the outside environment.

[0008] Pipe drilling machines can connect to gate valves via flanges and drill holes in pipes.

[0009] A shut-off valve can be connected to a gate valve via a flange and can block oil and gas from passing through a damaged section of the pipeline.

[0010] A sealing plate is used to seal short pipes.

[0011] The blocking device includes a housing that can be connected to a gate valve via a flange. A lifting telescopic rod is installed inside the housing. A rotating pipe is installed at the end of the lifting telescopic rod. Both sides of the rotating pipe are rotatably connected to an outer sleeve. An inner sleeve is slidably connected to the outer sleeve. A blocking airbag is installed at the end of the inner sleeve and the end of the outer sleeve. The blocking airbag is used to block the pipeline and control the movement of the inner sleeve.

[0012] As a further embodiment of the present invention, a trigger is installed at the end of the inner sleeve, a connecting rod is rotatably connected to the outer wall of the trigger, a positioning element is rotatably connected to the end of the connecting rod, a driving rod is rotatably connected to the positioning element, and a positioning telescopic rod communicating with the blocking airbag is installed on the inner end of the driving rod.

[0013] As a further embodiment of the present invention, the trigger is slidably connected to a sliding sleeve, both ends of the outer wall of the sliding sleeve are rotatably connected to the inner end of the connecting rod, a slider is slidably connected inside the positioning member, a return spring is installed between the slider and the positioning member, and an extendable barrier is installed between the slider and the sliding sleeve.

[0014] As a further embodiment of the present invention, baffles are fixedly provided at both ends of the blocking airbag, a retractable rod is rotatably connected between the baffles, a rotating shaft is rotatably connected between the retractable rods, and an elastic band is provided inside the blocking airbag, with both ends of the elastic band being fixedly connected to the rotating shaft.

[0015] As a further embodiment of the present invention, the temporary leak-stopping structure includes a valve, the valve is fitted with a positioning plate, both ends of the positioning plate are provided with slots, a U-shaped clamp is fitted in the slots, the clamp is fitted on the pipeline and a positioning strip is provided at the end by a nut.

[0016] As a further embodiment of the present invention, the gate valve includes a gate sleeve, the end of which has a through hole extending vertically, a gate plate is slidably connected inside the gate sleeve, and a screw threadedly connected to the gate plate is rotatably connected to the gate sleeve, with a handle installed at the end of the screw.

[0017] As a further aspect of the present invention, a positioning bolt is threadedly connected to the top side wall of the short pipe, and the positioning bolt is used for positioning the sealing plate.

[0018] As a further embodiment of the present invention, the sealing plate includes a positioning part and a sealing part.

[0019] As a further embodiment of the present invention, a semi-circular ball sleeve is fixedly connected to the inner end of the outer sleeve, and the ball sleeve is rotatably connected to and communicates with the rotating tube.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In the present invention, the blocking airbag is sent to both sides of the pipeline leak by means of a lifting telescopic rod, and then the blocking airbag is pressurized to expand until the outer wall of the blocking airbag abuts against the inner wall of the pipeline. The part between the inner end of the blocking airbag, the outer wall of the outer sleeve and the inner wall of the pipeline is isolated. The oil and gas in the part between the inner end of the blocking airbag, the outer wall of the outer sleeve and the inner wall of the pipeline are discharged by a temporary leak-sealing structure. The temporary leak-sealing structure is then removed, the pipeline leak is treated and repaired. After the repair is completed, the sealing plate is sent into the short pipe by means of a lifting telescopic rod, and then the outer shell is removed, thus completing the pipeline leak sealing. At the same time, the inner sleeve extends to both sides under the action of the blocking airbag. The oil and gas in the pipeline enter the outer sleeve on the same side from the inner sleeve on one side, then pass through the rotating pipe, and finally enter the inner sleeve that is slidably connected to it from the outer sleeve on the other side and are discharged. This allows the oil and gas in the pipeline to continue to flow, avoiding pipeline shutdown due to maintenance and affecting subsequent normal use.

[0021] 2. In this invention, the enclosure is unfolded by the positioning component. As the diameter of the oil and gas flow pipeline decreases, the pressure on one side of the pipeline will increase accordingly. The enclosure will gradually move in the direction of oil and gas flow due to the influence of oil and gas flow and pressure. When the enclosure moves, it will drive the slider to move. The movement of the slider will compress the return spring and push the gas in the positioning component into the positioning telescopic rod and the blocking airbag, thereby further improving the stability between the positioning component, the blocking airbag and the pipeline, and avoiding changes in the positioning component and the blocking airbag due to the increase in pressure in the pipeline, which would affect the sealing and the safety of construction personnel.

[0022] 3. In this invention, the enclosure is unfolded by the positioning component. As the diameter of the oil and gas flow pipeline decreases, the pressure on one side of the pipeline increases accordingly. The enclosure, affected by the oil and gas flow and pressure, gradually moves in the direction of oil and gas flow. When the enclosure moves, it drives the sliding sleeve to move. The movement of the sliding sleeve directly pushes the bottom of the connecting rod to move, and the top of the connecting rod pushes the positioning component to move. Because the positioning component is restricted by the driving rod, it can move around the bottom pivot point of the driving rod, further improving the stability between the positioning component and the pipe wall. When the positioning component cannot move outward, the driving rod moves in the direction of oil and gas flow, causing the movable end of the positioning telescopic rod to contract, thereby increasing the pressure inside the blocking airbag, further improving the stability between the blocking airbag and the pipe wall, and further preventing changes in the blocking airbag due to increased pressure inside the pipe, which could affect the sealing and the safety of construction personnel.

[0023] 4. In this invention, the valve in the open state is placed at the pipeline leak point, the positioning plate is sleeved on the valve, the clamp is clamped in the groove, and it is fixed to the pipeline by the nut and the positioning strip. The fit between the valve and the pipeline is adjusted by the nut, thereby temporarily installing the valve on the pipeline. When the valve is closed, the pipeline leak is temporarily blocked, avoiding continuous leakage of oil and gas, which not only wastes resources but also affects the safety of construction personnel. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0026] Figure 2 This is a schematic diagram of the overall cross-sectional structure of the present invention.

[0027] Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A in the middle.

[0028] Figure 4 This is a schematic diagram of the internal structure and connection relationship of the blocking airbag of the present invention.

[0029] Figure 5 This is a schematic diagram of the cross-sectional structure of the blocking airbag of the present invention.

[0030] Figure 6 This is a schematic diagram of the elastic band structure of the present invention.

[0031] Figure 7 This is a schematic diagram of the cross-sectional structure of the outer sleeve of the present invention.

[0032] Figure 8 This is a schematic diagram of the positioning component and its connection structure according to the present invention.

[0033] Figure 9 This is a schematic diagram of the cross-sectional structure of the positioning component and its connection relationship according to the present invention.

[0034] Figure 10 This is an exploded structural diagram of the rotating pipe and its connection relationship of the present invention.

[0035] Figure 11 This is an exploded structural diagram of the sealing plate and its connection relationship of the present invention.

[0036] Figure 12 This is a schematic diagram of the temporary leak-sealing structure of the present invention.

[0037] The components represented by each number in the attached diagram are listed below: 1. Short pipe; 21. Valve; 22. Positioning plate; 23. Slot; 24. Clamp; 25. Positioning strip; 3. Gate valve; 31. Gate sleeve; 32. Through hole; 33. Gate plate; 34. Screw; 35. Handle; 4. Blocking device; 41. Housing; 42. Lifting telescopic rod; 43. Rotary pipe; 44. Outer sleeve; 45. Inner sleeve; 46. Blocking airbag; 47. Ball sleeve; 51. Baffle; 52. Retracting rod; 53. Rotating shaft; 54. Elastic band; 61. Trigger; 62. Connecting rod; 63. Positioning component; 64. Drive rod; 65. Positioning telescopic rod; 71. Positioning part; 72. Sealing part; 81. Sliding sleeve; 82. Sliding block; 83. Return spring. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] Please see Figure 1-12 The present invention provides a technical solution: a rapid leak-sealing device for oil and gas surface construction, including a short pipe 1 welded to a pipeline for installing accessories, and a temporary leak-sealing structure installed on the pipeline by clamps 24 for temporarily sealing the damaged part of the pipeline and preventing further leakage of oil and gas in the pipeline.

[0040] Gate valve 3 is connected to short pipe 1 via a flange and can control the opening and closing of short pipe 1 with the outside world.

[0041] The pipe drilling machine can connect to the gate valve 3 via a flange and drill holes in the pipe.

[0042] The blocker 4 can be connected to the gate valve 3 via a flange and can block oil and gas from passing through the pipeline through the damaged part of the pipeline.

[0043] A sealing plate is used to seal short pipe 1.

[0044] The blocking device 4 includes a housing 41, which can be connected to the gate valve 3 via a flange. A lifting telescopic rod 42 is installed inside the housing 41. A rotating pipe 43 is installed at the end of the lifting telescopic rod 42. Both sides of the rotating pipe 43 are rotatably connected to an outer sleeve 44. An inner sleeve 45 is slidably connected to the outer sleeve 44. A blocking airbag 46 is installed at the end of the inner sleeve 45 and the end of the outer sleeve 44. The blocking airbag 46 is used to block the pipeline and control the movement of the inner sleeve 45.

[0045] See Figure 1-7When construction workers arrive at the pipeline leak, they use clamps 24 to fix the temporary leak-sealing structure to the pipeline and seal the leak with the temporary leak-sealing structure to prevent further oil and gas leakage from causing physical and mental harm to the construction workers.

[0046] After the pipeline leak is sealed and left to stand for a period of time, short pipe 1 is welded to the pipeline, and gate valve 3 is installed on short pipe 1 through a flange. Gate valve 3 is also connected to the pipeline drilling machine through a flange. The pipeline drilling machine drills a hole in the pipeline. After the pipeline is drilled (the pipeline is isolated from the outside world at this time), gate valve 3 is closed to isolate the pipeline from the pipeline drilling machine. After the oil and gas in the pipeline drilling machine are discharged, it is removed, and the shut-off device 4 is installed on gate valve 3.

[0047] The movable end of the lifting telescopic rod 42 extends, blocking the descent of the airbag 46. When the inner sleeve 45 contacts the inner wall of the pipeline, the inner sleeve 45 moves to both sides of the pipeline (the inner sleeve 45 is in a figure-eight shape when retracted). When the rotating pipe 43 moves to the pipeline axis, the movable end of the lifting telescopic rod 42 stops descending and pressurizes the airbag 46, causing the airbag 46 to expand until the outer wall of the airbag 46 abuts against the inner wall of the pipeline. The portion between the inner end of the airbag 46, the outer wall of the outer sleeve 44, and the inner wall of the pipeline is isolated. At the same time, the inner sleeve 45 extends to both sides under the action of the airbag 46, and the oil and gas in the pipeline exit from one side of the inner sleeve. 45 enters the outer sleeve 44 on the same side, then passes through the turn pipe 43, and finally enters the inner sleeve 45 that is slidably connected to it from the outer sleeve 44 on the other side, and is discharged, so that the oil and gas in the pipeline can still flow, avoiding pipeline shutdown due to maintenance and affecting subsequent normal use; the oil and gas in the part between the inner end of the blocking airbag 46, the outer wall of the outer sleeve 44 and the inner wall of the pipeline are discharged through the temporary leak-sealing structure, and the temporary leak-sealing structure is removed, the pipeline leak is treated and repaired, after the repair is completed, the sealing plate is sent into the short pipe 1 through the lifting telescopic rod 42, and then the outer shell 41 is removed, thus completing the pipeline leak sealing.

[0048] In summary, the air-blocking bladder 46 is inserted into both sides of the pipeline leak using the lifting telescopic rod 42. Then, pressure is applied to the air-blocking bladder 46, causing it to inflate until its outer wall contacts the inner wall of the pipeline. This isolates the portion between the inner end of the air-blocking bladder 46, the outer wall of the outer sleeve 44, and the inner wall of the pipeline. A temporary leak-sealing structure is then used to expel the oil and gas from this portion. The temporary leak-sealing structure is then removed, and the pipeline leak is treated before further treatment. After repair, the sealing plate is inserted into the short pipe 1 by lifting telescopic rod 42, and then the outer shell 41 is removed, thus completing the pipeline leak sealing. At the same time, the inner sleeve 45 extends to both sides under the action of the blocking airbag 46. The oil and gas in the pipeline enter the outer sleeve 44 on the same side from the inner sleeve 45 on one side, then pass through the turn pipe 43, and finally enter the inner sleeve 45 slidably connected to it from the outer sleeve 44 on the other side and are discharged, so that the oil and gas in the pipeline can still flow, avoiding pipeline shutdown due to maintenance and affecting subsequent normal use.

[0049] As a further embodiment of the present invention, a trigger 61 is installed at the end of the inner sleeve 45, a connecting rod 62 is rotatably connected to the outer wall of the trigger 61, a positioning member 63 is rotatably connected to the end of the connecting rod 62, a driving rod 64 is rotatably connected to the positioning member 63, and a positioning telescopic rod 65 communicating with the blocking airbag 46 is installed on the inner end of the driving rod 64.

[0050] See Figure 8-9 When the blocking airbag 46 is pressurized, the movable end of the positioning telescopic rod 65 extends, causing the bottom of the drive rod 64 to move outward. The top of the drive rod 64 drives the positioning component 63 to move outward. Since the positioning component 63 is restricted by the connecting rod 62, the positioning component 63 moves around the bottom pivot point of the connecting rod 62. The positioning component 63 gradually moves towards the inside of the pipeline until it touches the inner wall of the pipeline, thereby further strengthening the stability between the blocking airbag 46 and the inner sleeve 45, and preventing oil and gas from being discharged out of the pipeline again through the blocking airbag 46 during the leak sealing process, which would affect the safety of the construction personnel.

[0051] As a further embodiment of the present invention, the trigger member 61 is slidably connected to a sliding sleeve 81, both ends of the outer wall of the sliding sleeve 81 are rotatably connected to the inner end of the connecting rod 62, the positioning member 63 is slidably connected to a slider 82, a return spring 83 is installed between the slider 82 and the positioning member 63, and an extendable barrier is installed between the slider 82 and the sliding sleeve 81.

[0052] See Figure 8-9When the positioning component 63 touches the pipe wall, the enclosure will also unfold. As the diameter of the oil and gas flow pipe decreases, the pressure on one side of the pipe will increase. The enclosure will gradually move in the direction of oil and gas flow due to the influence of oil and gas flow and pressure. When the enclosure moves, it will drive the slider 82 and the sliding sleeve 81 to move.

[0053] The movement of slider 82 compresses the reset spring 83 and pushes the gas in the positioning component 63 into the positioning telescopic rod 65 and the blocking airbag 46, thereby further improving the stability between the positioning component 63, the blocking airbag 46 and the pipeline, and preventing changes in the positioning component 63 and the blocking airbag 46 due to increased pressure in the pipeline, which could affect the sealing and the safety of construction personnel.

[0054] The movement of the sliding sleeve 81 directly pushes the bottom of the connecting rod 62 to move, and the top of the connecting rod 62 pushes the positioning member 63 to move. Since the positioning member 63 is restricted by the driving rod 64, the positioning member 63 can move around the bottom pivot point of the driving rod 64, further improving the stability of the positioning member 63 and the pipe wall. When the positioning member 63 cannot move outward, the driving rod 64 moves in the direction of oil and gas flow, causing the movable end of the positioning telescopic rod 65 to contract, thereby increasing the pressure inside the blocking airbag 46, further improving the stability between the blocking airbag 46 and the pipe wall, and further preventing the blocking airbag 46 from changing due to the increase in pressure inside the pipe, which would affect the sealing and the safety of construction personnel.

[0055] As a further embodiment of the present invention, baffles 51 are fixedly provided at both ends of the blocking airbag 46, and retractable rods 52 are rotatably connected between the baffles 51. A rotating shaft 53 is rotatably connected between the retractable rods 52. An elastic band 54 is provided inside the blocking airbag 46, and both ends of the elastic band 54 are fixedly connected to the rotating shaft 53.

[0056] See Figure 4-6 When the pressure inside the airbag 46 increases, the retractable rod 52 rotates around the pivot 53, and the pivot 53 moves towards both ends of the airbag 46, increasing the stability of the airbag 46 and stretching the elastic band 54. When the pressure inside the airbag 46 decreases, the elastic band 54 can pull the pivot 53 towards the inner wall of the airbag 46, allowing the airbag 46 to contract rapidly.

[0057] As a further embodiment of the present invention, the temporary leak-sealing structure includes a valve 21, the valve 21 is fitted with a positioning plate 22, the positioning plate 22 has slots 23 at both ends, a U-shaped clamp 24 is fitted in the slots 23, the clamp 24 is fitted on the pipeline and the end is provided with a positioning strip 25 by a nut.

[0058] See Figure 12The valve 21, which is in the open state, is placed at the pipeline leak point. The positioning plate 22 is fitted onto the valve 21, and the clamp 24 is clamped in the groove 23. It is fixed to the pipeline by the nut and the positioning strip 25 (the fit between the valve 21 and the pipeline is adjusted by the nut). Thus, the valve 21 is temporarily installed on the pipeline. When the valve 21 is closed, the pipeline leak is temporarily blocked, which prevents the continuous leakage of oil and gas, which not only wastes resources but also affects the safety of construction personnel.

[0059] As a further embodiment of the present invention, the gate valve 3 includes a gate sleeve 31, the end of which is provided with a through hole 32 extending vertically, a gate plate 33 is slidably connected inside the gate sleeve 31, and a screw 34 threadedly connected to the gate plate 33 is rotatably connected to the gate sleeve 31, with a handle 35 installed at the end of the screw 34.

[0060] See Figure 2-3 Rotating the handle 35 can drive the screw 34 to rotate, and the screw 34 drives the gate 33 connected to it to move. The movement of the gate 33 can realize the opening and closing of the through hole 32, thereby realizing the opening and closing of the pipeline.

[0061] As a further embodiment of the present invention, a positioning bolt is threadedly connected to the top side wall of the short pipe 1, and the positioning bolt is used for positioning the sealing plate.

[0062] See Figure 11 The positioning bolt can position the sealing plate, thereby achieving the sealing of short pipe 1.

[0063] As a further embodiment of the present invention, the sealing plate includes a positioning part 71 and a sealing part 72.

[0064] During operation, the positioning bolt contacts the positioning part 71, and the sealing part 72 can seal the short pipe 1.

[0065] As a further embodiment of the present invention, a semi-circular ball sleeve 47 is fixedly connected to the inner end of the outer sleeve 44, and the ball sleeve 47 is rotatably connected to and communicates with the rotating tube 43.

[0066] See Figure 10 The rotating pipe 43 and the ball sleeve 47 can rotate relative to each other and are connected to each other to realize the transportation of oil and gas.

Claims

1. A rapid leak-sealing device for oil and gas surface construction, comprising a short pipe (1) welded to a pipeline for installing fittings, characterized in that: It also includes, The temporary sealing structure is installed on the pipeline by clamps (24) to temporarily block the damaged part of the pipeline and can prevent the oil and gas in the pipeline from continuing to leak. The gate valve (3) is connected to the short pipe (1) via a flange and can control the opening and closing of the short pipe (1) with the outside world; The pipe tapping machine can be connected to the gate valve (3) via a flange and tap the pipe; The blocker (4) can be connected to the gate valve (3) via a flange and can block oil and gas from passing through the pipeline rupture point; Sealing plate, used to seal short pipes (1); The blocking device (4) includes a housing (41) that can be connected to a gate valve (3) via a flange. A lifting telescopic rod (42) is installed inside the housing (41). A rotating pipe (43) is installed at the end of the lifting telescopic rod (42). An outer sleeve (44) is rotatably connected to both sides of the rotating pipe (43). An inner sleeve (45) is slidably connected to the outer sleeve (44). A blocking airbag (46) is installed at the end of the inner sleeve (45) and the end of the outer sleeve (44). The blocking airbag (46) is used to block the pipeline and control the movement of the inner sleeve (45). The inner sleeve (45) is equipped with a trigger (61) at its end. The outer wall of the trigger (61) is rotatably connected to a connecting rod (62). The ends of the connecting rod (62) are rotatably connected to a positioning element (63). The positioning element (63) is rotatably connected to a drive rod (64). The inner end of the drive rod (64) is equipped with a positioning telescopic rod (65) that communicates with the blocking airbag (46). The trigger (61) is slidably connected to a sliding sleeve (81), and both ends of the outer wall of the sliding sleeve (81) are rotatably connected to the inner end of the connecting rod (62). The positioning member (63) is slidably connected to a slider (82), and a return spring (83) is installed between the slider (82) and the positioning member (63). An extendable barrier is installed between the slider (82) and the sliding sleeve (81).

2. The rapid leak-sealing device for oil and gas surface construction according to claim 1, characterized in that: Both ends of the blocking airbag (46) are fixedly provided with baffles (51), and the baffles (51) are rotatably connected with retractable rods (52). The retractable rods (52) are rotatably connected with rotating shafts (53). An elastic band (54) is provided inside the blocking airbag (46), and both ends of the elastic band (54) are fixedly connected to the rotating shafts (53).

3. The rapid leak-sealing device for oil and gas surface construction according to claim 1, characterized in that: The temporary plugging structure includes a valve (21), the valve (21) is fitted with a positioning plate (22), the positioning plate (22) has slots (23) at both ends, a U-shaped clamp (24) is fitted in the slot (23), the clamp (24) is fitted on the pipeline and the end is fitted with a positioning strip (25) through a nut.

4. A rapid leak-sealing device for oil and gas surface construction according to claim 2 or 3, characterized in that: The gate valve (3) includes a gate sleeve (31), the end of which is provided with a through hole (32) extending vertically, a gate plate (33) is slidably connected inside the gate sleeve (31), and a screw (34) is rotatably connected to the gate plate (33) and threadedly connected to the gate sleeve (31). A handle (35) is installed at the end of the screw (34).

5. A rapid leak-sealing device for oil and gas surface construction according to claim 3, characterized in that: The top side wall of the short tube (1) is threaded with a positioning bolt, which is used for positioning the sealing plate.

6. The rapid leak-sealing device for oil and gas surface construction according to claim 5, characterized in that: The sealing plate includes a positioning part (71) and a sealing part (72).

7. A rapid leak-sealing device for oil and gas surface construction according to claim 6, characterized in that: The inner end of the outer sleeve (44) is fixedly connected to a semi-circular ball sleeve (47), and the ball sleeve (47) is rotatably connected to and communicates with the rotating tube (43).

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