Pipeline leakage plugging device for petroleum transportation loading and unloading

Abstract

The utility model relates to the technical field of petroleum pipeline repairing tools, and discloses a pipeline leakage plugging device for petroleum transportation, loading and unloading, which comprises a pipeline, a hoop is arranged outside the pipeline, a sealing gasket is arranged on the inner wall of the hoop, an operation box is fixedly connected to the surface of the hoop, a leakage point is arranged on the surface of the pipeline, and the leakage point is connected with the pipeline. A connecting rod is movably arranged in the operation box in a sleeved mode, the interior of the connecting rod is hollow, the surface of the connecting rod is sleeved with a first air bag, a leakage point can be blocked through cooperation of an air inlet pipe, a connecting pipe, the first air bag and a second air bag, and the air bags can be adjusted in a self-adaptive mode according to the specific shape and space of the leakage point; the sealing ring is used for sealing the leakage point, the gap between the sealing ring and the leakage point is filled, so that the sealing performance is improved, better leakage blocking is ensured, meanwhile, the sealing effect on the leakage point can be further ensured through cooperation of the abutting ring and the sealing ring, the sealing effect is good, practicability is high, and operation is easy.

Description

TECHNICAL FIELD

[0001] The utility model relates to petroleum pipeline repair tool technical field, concretely is a pipeline leak plugging device for petroleum transportation loading and unloading. BACKGROUND

[0002] Petroleum pipeline is the pipeline of conveying petroleum, is widely used in petroleum transportation industry because it has the characteristics of large transportation capacity, good airtightness, low cost and high safety factor, petroleum pipeline is mostly made of seamless steel pipe, and adjacent seamless steel pipe is sealed and connected through connecting flange structure. Petroleum pipeline will leak due to deformation, impact crack or stolen hole and other factors in the long-term use.

[0003] When it is necessary to transport petroleum through tank cars, petroleum needs to be transported from the storage tank to the tank car or from the tank car to the destination storage tank, so that loading and unloading pipelines are used to connect the tank car and the storage facility to realize the transfer of petroleum, but collision of the pipeline may occur in the process of connecting through the pipeline, which may cause the pipeline to leak when conveying petroleum, and some existing petroleum pipeline plugging structures mainly rely on the clamping frame to clamp on the petroleum pipeline, and the plugging rubber pad is additionally arranged on the clamping frame, and the plugging rubber pad is tightly attached to the leakage position by means of screwing, so as to achieve the purpose of plugging, but this plugging method only relies on the screwing of the arc plate to achieve plugging, it is difficult to ensure that the pressure exerted by the rubber pad on the surrounding leakage point is uniformly distributed, and local insufficient pressure may cause leakage, and for irregularly shaped leakage points, it is difficult to completely fit, which may cause the sealing to be not tight, affect the plugging effect, and the plugging effect of the leakage point is poor, therefore, we propose a pipeline leak plugging device for petroleum transportation loading and unloading to solve the above problems. SUMMARY

[0004] In view of the deficiencies of the prior art, the utility model provides a pipeline leak plugging device for petroleum transportation loading and unloading to solve the problem of poor plugging effect of some existing petroleum pipeline leak plugging devices.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: A pipeline leak plugging device for petroleum transportation loading and unloading, pipeline is provided with hoop outside, the inner wall of hoop is provided with sealing washer, the surface of hoop is fixedly connected with operation box, the surface of pipeline is provided with leakage point, the inside of operation box movably sheaths connection rod, the inside of connection rod is hollow, the surface of connection rod sheaths first air bag, first air bag is located inside leakage point, one end of connection rod located inside pipeline is fixedly connected with second air bag, second air bag is located inside pipeline, the inside of connection rod is provided with first air hole and second air hole, the surface of connection rod is provided with thread groove, connection rod extends into the inside of pipeline through thread groove, connection rod is connected through thread groove and hoop, the inside of operation box is provided with cavity, the inside of cavity is provided with secondary sealing structure.

[0006] Preferably, the first air hole and the first air bag are in communication, and the second air hole and the second air bag are in communication.

[0007] Preferably, the secondary sealing structure comprises a pressing ring, the pressing ring is slidably connected in the cavity, the pressing ring is slidably sleeved on the outside of the connection rod, a sealing chamber is formed in the inside of the pressing ring, and a sealing ring is fixedly sleeved on the outside of the connection rod and located in the sealing chamber.

[0008] Preferably, the surface of the pressing ring is fixedly connected with a connecting sleeve, the connecting sleeve movably penetrates into the inside of the operation box, and one end of the connecting sleeve located outside the operation box is fixedly connected with a handle.

[0009] Preferably, an air inlet pipe is fixedly sleeved in the inside of the handle and slidably penetrates into the inside of the connection rod.

[0010] Preferably, a locking rod is fixedly connected to the surface of the handle, a locking groove is formed in the surface of the operation box, and the locking rod and the locking groove are matched.

[0011] Preferably, a spring is arranged between the pressing ring and the inner wall of the cavity, the spring is fixedly connected with the inner wall of the cavity, and the other end of the spring is in contact with the pressing ring.

[0012] Preferably, a synchronization groove is formed in the inner wall of the connecting sleeve, a synchronization block is fixedly connected to the outer surface of the connection rod, and the synchronization block and the synchronization groove are slidably connected.

[0013] Compared with the prior art, the utility model provides a pipeline leak plugging device for petroleum transportation loading and unloading, which has the following beneficial effects:

[0014] 1. The petroleum transportation pipe leakage plugging device, through the cooperation of the air inlet pipe, the connecting pipe, the first air bag and the second air bag, the leakage point can be plugged, the air bag can be self-adapted according to the specific shape and space of the leakage point, and the gap between the air bag and the leakage point can be filled, so that the sealing performance is improved, the leakage can be better plugged, and the sealing effect of the leakage point can be further ensured by the cooperation of the abutting ring and the sealing ring, the sealing effect is better, the practicality is higher, and the operation is simple.

[0015] 2. The petroleum transportation pipe leakage plugging device, through the cooperation of the handle, the locking rod, the locking groove and the spring, the stability of the connecting rod is ensured, the rotation of the connecting rod caused by accidental touch is avoided, only the handle is pulled outwards and then rotated to change the position of the connecting rod, and the practicality is higher. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structure schematic view of the petroleum transportation pipe leakage plugging device.

[0017] Figure 2 It is a sectional structure schematic view of the operation box.

[0018] Figure 3 It is a sectional structure schematic view of the connecting rod.

[0019] Figure 4 It is a sectional structure schematic view of the connecting sleeve.

[0020] In the figure: 1, pipe; 2, hoop; 3, operation box; 4, leakage point; 5, connecting rod; 6, first air bag; 7, second air bag; 8, first air hole; 9, second air hole; 10, threaded groove; 11, cavity; 12, abutting ring; 13, sealing chamber; 14, sealing ring; 15, connecting sleeve; 16, handle; 17, air inlet pipe; 18, locking rod; 19, locking groove; 20, spring; 21, synchronization groove; 22, synchronization block. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0022] Please refer to Figures 1-4The utility model provides a technical scheme: a pipeline leak plugging device for petroleum transportation loading and unloading, pipeline 1 is provided with hoop 2 outside, the inner wall of hoop 2 is provided with sealing washer, the surface of hoop 2 is fixedly connected with operating box 3, the surface of pipeline 1 is provided with leak point 4, the inside of operating box 3 is movably sleeved with connecting rod 5, the inside of connecting rod 5 is hollow, the surface of connecting rod 5 is sleeved with first air bag 6, first air bag 6 is located inside leak point 4, one end of connecting rod 5 in the inside of pipeline 1 is fixedly connected with second air bag 7, second air bag 7 is located in the inside of pipeline 1, the inside of connecting rod 5 is provided with first air hole 8 and second air hole 9, first air hole 8 and first air bag 6 are communicated, second air hole 9 and second air bag 7 are communicated, the surface of connecting rod 5 is provided with thread groove 10, connecting rod 5 extends into the inside of pipeline 1 through thread groove 10, connecting rod 5 is screwed with hoop 2 through thread groove 10, the inside of operating box 3 is provided with cavity 11, the inside of cavity 11 is provided with secondary sealing structure.

[0023] Secondary sealing structure includes abutting ring 12, abutting ring 12 is slidably connected in the inside of cavity 11, abutting ring 12 is slidably sleeved in the outside of connecting rod 5, the inside of abutting ring 12 is provided with sealing chamber 13, the outside of connecting rod 5 is fixedly sleeved with sealing ring 14, and sealing ring 14 is located in the inside of sealing chamber 13.

[0024] Wherein, the inner wall of sealing chamber 13 and the rear surface of abutting ring 12 are also provided with sealing washer, and sealing ring 14 and sealing chamber 13 are abutted by the sealing washer, so that the sealing property between abutting ring 12 and connecting rod 5 can be guaranteed, and the sealing of abutting ring 12 to cavity 11 can be further improved by the sealing washer.

[0025] The surface of abutting ring 12 is fixedly connected with connecting sleeve 15, connecting sleeve 15 movably penetrates into the inside of operating box 3, one end of connecting sleeve 15 located outside operating box 3 is fixedly connected with handle 16.

[0026] The inside of handle 16 is fixedly sleeved with air inlet pipe 17, air inlet pipe 17 slidably penetrates into the inside of connecting rod 5, the inside of connecting rod 5 is communicated with first air bag 6 and second air bag 7 by the setting of air inlet pipe 17.

[0027] In the above embodiment, the sealing of air inlet pipe 17 is prior art, so it will not be described too much.

[0028] The surface of handle 16 is fixedly connected with locking rod 18, the surface of operating box 3 is provided with locking groove 19, locking rod 18 and locking groove 19 are matched, only when the staff pulls handle 16 outward, handle 16 can be driven to rotate by the cooperation of locking rod 18 and locking groove 19, so that the stability of connecting rod 5 can be guaranteed.

[0029] The spring 20 is arranged between the abutting ring 12 and the inner wall of the cavity 11, and is fixedly connected with the inner wall of the cavity 11, and the other end of the spring 20 is in contact with the abutting ring 12.

[0030] The inner wall of the connecting sleeve 15 is provided with a synchronous groove 21, and the outer surface of the connecting rod 5 is fixedly connected with a synchronous block 22, and the synchronous block 22 and the synchronous groove 21 are in sliding connection, and through the cooperation of the synchronous groove 21 and the synchronous block 22, the worker can synchronously drive the connecting sleeve 15 and the connecting rod 5 to rotate at the same time when rotating the handle 16.

[0031] Working principle:

[0032] When the petroleum transportation loading and unloading pipeline leakage plugging device is used, the worker inserts the connecting rod 5 into the inside of the leakage point 4, and then fixes the clamp 2 outside the pipeline 1, and then pulls the handle 16 outward, at this time the locking rod 18 will be separated from the inside of the locking groove 19, so that the handle 16 is no longer fixed, and then the handle 16 is rotated, at this time the rotation of the handle 16 and the cooperation of the synchronous block 22 and the synchronous groove 21 can drive the connecting rod 5 to rotate, at this time the connecting rod 5 will move because the connecting rod 5 and the clamp 2 are threadedly connected, until the second air bag 7 enters the inside of the pipeline 1, and the first air bag 6 enters the inside of the leakage point 4, then the handle 16 is loosened, at this time the locking rod 18 will be inserted into the inside of the locking groove 19 again by the setting of the spring 20, so as to realize the fixation of the connecting rod 5,

[0033] When the handle 16 is reset, the abutting ring 12 is also reset, at this time the abutting ring 12 will abut against the cavity 11, so that the sealing gasket can seal the gap between the connecting rod 5 and the operation box 3, and at the same time the sealing ring 14 will abut against the sealing chamber 13, at this time the sealing of the gap between the abutting ring 12 and the connecting rod 5 is realized, and finally the secondary sealing is realized.

[0034] Then the inside of the air inlet pipe 17 is inflated by the external inflation assembly, and then the first air bag 6 and the second air bag 7 are inflated through the setting of the first air hole 8 and the second air hole 9, and the sealing of the leakage point 4 is realized through the cooperation of the first air bag 6 and the second air bag 7.

[0035] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A device for plugging a leak in a pipeline for the loading and unloading of petroleum, comprising a pipeline (1), characterized in that: The outer part of the pipeline (1) is provided with a hoop (2), the inner wall of the hoop (2) is provided with a sealing pad, the surface of the hoop (2) is fixedly connected with an operation box (3), the surface of the pipeline (1) is provided with a leakage point (4), the inner part of the operation box (3) movably sheaths a connecting rod (5), the inner part of the connecting rod (5) is hollow, the surface of the connecting rod (5) sheaths a first air bag (6), the first air bag (6) is located in the inner part of the leakage point (4), one end of the connecting rod (5) located in the inner part of the pipeline (1) is fixedly connected with a second air bag (7), the second air bag (7) is located in the inner part of the pipeline (1), the inner part of the connecting rod (5) is provided with a first air hole (8) and a second air hole (9), the surface of the connecting rod (5) is provided with a threaded groove (10), the connecting rod (5) extends into the inner part of the pipeline (1) through the threaded groove (10), the connecting rod (5) is screwed with the hoop (2) through the threaded groove (10), the inner part of the operation box (3) is provided with a cavity (11), the inner part of the cavity (11) is provided with a secondary sealing structure.

2. A pipeline leak plugging device for use in loading and unloading petroleum, according to claim 1, characterized in that: The first air hole (8) and the first air bag (6) are communicated, and the second air hole (9) and the second air bag (7) are communicated.

3. A pipeline leak plugging device for use in loading and unloading petroleum, according to claim 1, characterized in that: The secondary sealing structure comprises a pressing ring (12), the pressing ring (12) is slidably connected in the inner part of the cavity (11), the pressing ring (12) is slidably sheathed on the outer part of the connecting rod (5), the inner part of the pressing ring (12) is provided with a sealing chamber (13), the outer part of the connecting rod (5) is fixedly sheathed with a sealing ring (14), and the sealing ring (14) is located in the inner part of the sealing chamber (13).

4. A pipeline leak plugging device for use in loading and unloading petroleum, according to claim 3, characterized in that: The surface of the pressing ring (12) is fixedly connected with a connecting sleeve (15), the connecting sleeve (15) movably penetrates into the inner part of the operation box (3), and one end of the connecting sleeve (15) located outside the operation box (3) is fixedly connected with a handle (16).

5. A pipeline leak plugging device for use in the loading and unloading of petroleum products as defined in claim 4, wherein: The inner part of the handle (16) is fixedly sheathed with an air inlet pipe (17), and the air inlet pipe (17) slidably penetrates into the inner part of the connecting rod (5).

6. A pipeline leak plugging device for use in the loading and unloading of petroleum products as defined in claim 5, wherein: The surface of the handle (16) is fixedly connected with a locking rod (18), the surface of the operation box (3) is provided with a locking groove (19), and the locking rod (18) and the locking groove (19) are matched.

7. A pipeline leak plugging device for use in loading and unloading petroleum from a tanker according to claim 4, wherein: A spring (20) is arranged between the pressing ring (12) and the inner wall of the cavity (11), the spring (20) is fixedly connected with the inner wall of the cavity (11), and the other end of the spring (20) is in contact with the pressing ring (12).

8. A pipeline leak plugging device for use in the loading and unloading of petroleum products as defined in claim 4, wherein: The inner wall of the connecting sleeve (15) is provided with a synchronous groove (21), the outer surface of the connecting rod (5) is fixedly connected with a synchronous block (22), and the synchronous block (22) and the synchronous groove (21) are slidably connected.

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