Pipeline leakage point leakage stopper

Abstract

The utility model relates to the field of sealing equipment, in particular to a pipeline leakage point plugging device which comprises a clamp, and the peripheral end of the clamp is connected through a fastener. A sealing ring is installed on the inner wall of the clamp, and the inner wall of the clamp surrounded by the sealing ring is a leakage point plugging area. And the plugging range of the pressure of the leaked pipeline is increased to 60 Mpa. And in addition, the size is small, installation is convenient, installation can be achieved without stopping an original pipeline, and the leakage position can be blocked. And the pipeline has the characteristics of corrosion resistance and high temperature resistance, so that the service life of the original pipeline is greatly prolonged.

Description

Technical Field

[0001] The utility model relates to the field of sealing equipment, in particular to a pipeline leak plugging device, which is a small hydraulic product that solves the leakage of high-pressure water, oil and gas pipelines through hydraulic sealing technology. Background Art

[0002] At present, the leak plugging devices on the market are mainly applied to low-pressure pipelines, and there is a blank in the field of leak plugging devices for high-pressure and ultra-high-pressure pipelines, especially those with a pressure of 10 Mpa - 60 Mpa.

[0003] For example, the high-pressure water injection pipelines in oil fields often have water leakage problems. When there is a leak, it is necessary to cut off the pipeline at the leaking part and weld a new section of pipeline, which is very troublesome and the cost of stopping pipeline operation and replacement is very high. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is: in order to overcome the problems existing above, a device is provided which can directly plug the leak point without damaging the original structure and affecting the operation of the original pipeline, so that the pipeline no longer leaks and can work normally. It has a reasonable structure, simple assembly, and good stability, corrosion resistance and durability.

[0005] The technical solution adopted by this application is: a pipeline leak plugging device, including a clamp, the outer peripheral ends of the clamp are connected by fasteners; a sealing ring is installed on the inner wall of the clamp, and the inner wall of the clamp surrounded by the sealing ring is the leak point plugging area.

[0006] Further, a sealing groove is processed on the inner wall of the clamp for installing the sealing ring.

[0007] Further, the clamp includes a semi-circular upper clamp and a semi-circular lower clamp.

[0008] Further, a sealing groove is processed on the inner wall of the upper clamp or the lower clamp.

[0009] Further, alloy sheets are fixed on the surface of the leak point plugging area.

[0010] Further, the alloy sheets are made of elastic alloy.

[0011] Further, the elastic alloy is copper-nickel alloy, and the thickness of the alloy sheet is 3 - 6 mm.

[0012] Further, the sealing groove runs through from beginning to end, is rectangular as a whole, and has arc transitions at the four corners.

[0013] Further, the fasteners are bolts and nuts.

[0014] Further, fastening plates are provided at both ends of the outer periphery of the upper fixture and the lower fixture. Fastening holes are machined on the fastening plates. After bolts are sequentially passed through the fastening holes, the upper fixture and the lower fixture are locked together with nuts.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows: The plugging range of the pressure of the leaking pipeline by the existing leak plugging device in the market is greatly improved, and the plugging range of the pressure of the leaking pipeline is increased to 60 Mpa. Moreover, it is small in size and convenient for installation. It can be installed and the leakage position can be plugged without stopping the operation of the original pipeline. And it has the characteristics of corrosion resistance and high temperature resistance, which greatly increases the service life of the original pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the pipeline leak point plugging device provided by the present utility model;

[0017] Figure 2 is a front view of the pipeline leak point plugging device provided by the present utility model;

[0018] Figure 3 is a sectional view of the pipeline leak point plugging device provided by the present utility model;

[0019] Figure 4 is a schematic diagram of the internal structure of the pipeline leak point plugging device provided by the present utility model;

[0020] Figure 5 is a schematic diagram of the internal structure of the pipeline leak point plugging device provided by another embodiment of the present utility model;

[0021] Wherein: fixture 1, upper fixture 101, lower fixture 102, sealing ring 2, sealing groove 3, alloy sheet 4, fastening plate 5, fastening hole 501, fastener 6. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] As Figures 1 - 3 shown, this embodiment provides a pipeline leak point plugging device, including a fixture 1, made of 45# steel, with a sealing groove 3 opened on the inner wall, and a sealing ring 2 is assembled. A part of the sealing ring 2 protrudes from the sealing groove 3, and the inner wall of the fixture 1 surrounded by the sealing ring 2 is the leak point plugging area;

[0024] The circumferential ends of the clamp 1 are fixed together by fasteners 6, which can seal the leakage point of a hydraulic pipeline with a pressure less than 18 Mpa.

[0025] In another embodiment of the present application, the clamp 1 is divided into left and right parts, namely the upper clamp 101 and the lower clamp 102. Both the upper clamp 101 and the lower clamp 102 are semi-cylindrical bodies, and the inner wall cross-section of the upper clamp 101 and the lower clamp 102 is arc-shaped (as Figure 3 shown), and a sealing groove 3 is opened on the inner wall of the upper clamp 101 or the lower clamp 102. The split clamp 1 is convenient for installation.

[0026] In another embodiment of the present application, fastening plates 5 are processed on both sides of the upper clamp 101 and the lower clamp 102 (the upper and lower sides in Figure 1 ). Fastening holes 501 are provided on the fastening plates 5. Different numbers of fastening holes 501 are set according to the axial length of the clamp 1, and fasteners 6 are provided to fix the upper clamp 101 and the lower clamp 102 at the leakage point position of the pipeline.

[0027] In another embodiment of the present application, alloy sheets 4 are fixed on the surface of the leakage point sealing area. The alloy sheets 4 are fixed on the surface of the leakage point sealing area by argon arc welding. The alloy sheets 4 are made of elastic alloy, such as copper-nickel alloy, which has better elasticity and ductility. The thickness of the alloy sheets 4 is about 5 mm, and the inner surface of the alloy sheets 4 is 3 - 4 mm lower than the surface of the sealing ring. After installation, it can seal the leakage point of a hydraulic pipeline with a pressure less than 60 Mpa.

[0028] In another embodiment of the present application, the fastener 6 is a bolt and a nut. After passing the bolt through the fastening holes in sequence, the upper clamp 101 and the lower clamp 102 are locked together with the nut.

[0029] In another embodiment of the present application, the sealing groove 3 runs through from end to end, is rectangular as a whole, and has arc transitions at the four corners. The leakage point sealing area is designed in different sizes and can be used for leakage point pipelines of different sizes. Refer to Figure 4 and Figure 5 .

[0030] Working principle:

[0031] This product is easy to operate. First, remove the bolt on the pipeline leakage point plugging device, align the part containing the alloy sheet 4 or the hollow part in the sealing ring 2 with the water leakage point on the pipeline and fasten it, then symmetrically fasten the other half of the clamp to the pipeline, and use bolts and nuts to tightly fix it on the pipeline. Tighten it evenly to make it stressed. In this way, the water leakage point can be sealed to achieve the purpose of controlling leakage. It is used for leak repair and sealing of water, oil, gas and hydraulic pipelines. It is applicable to the leakage point plugging work of pipelines with a pressure of 60 Mpa and below. It has the characteristics of corrosion resistance, high temperature resistance and high pressure resistance, and has a long service life, which can completely solve the problem of pipeline leakage point leakage.

[0032] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A pipeline leak plugging device, characterized in that: The clamp comprises a clamp (1), the outer peripheral ends of the clamp (1) are connected via fasteners (6); a sealing ring (2) is installed on the inner wall of the clamp (1), and the inner wall of the clamp surrounded by the sealing ring (2) is a leak point blocking area.

2. The pipeline leak plugging device according to claim 1 is characterized in that: The inner wall of the clamp (1) is processed with a sealing groove (3) for installing a sealing ring (2).

3. The pipeline leak plugging device according to claim 1 is characterized in that: The clamp (1) comprises a semicircular upper clamp (101) and a semicircular lower clamp (102).

4. The pipeline leak plugging device according to claim 3 is characterized in that: The inner wall of the upper clamp (101) or the lower clamp (102) is processed with a sealing groove (3).

5. The pipeline leak plugging device according to claim 1 is characterized in that: An alloy sheet (4) is fixed on the surface of the leak point plugging area.

6. The pipeline leak plugging device according to claim 5, characterized in that: The alloy sheet (4) is made of elastic alloy.

7. The pipeline leak plugging device according to claim 6, characterized in that: The elastic alloy is a copper-nickel alloy, and the alloy sheet 4 has a thickness of 3-6 mm.

8. The pipeline leak plugging device according to claim 4 is characterized in that: The sealing groove (3) is connected from beginning to end and is rectangular in shape as a whole, with arc transitions at the four corners.

9. The pipeline leak plugging device according to claim 1, characterized in that: The fasteners (6) are bolts and nuts.

10. The pipeline leak plugging device according to claim 3, characterized in that: The upper clamp (101) and the lower clamp (102) are provided with fastening plates (5) at both ends of their outer circumferences. The fastening plates (5) are provided with fastening holes (501). After the bolts are passed through the fastening holes (501) in sequence, the upper clamp (101) and the lower clamp (102) are locked together with nuts.

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