Pipeline flange sealing device

Abstract

The utility model relates to a pipeline flange sealing device. The pipeline flange sealing device comprises a first sealing shell, a second sealing shell, a fixing piece and a sealing piece. Wherein the first sealing shell is used for being arranged on a first pipeline in a sleeving manner; the first sealing shell is used for being arranged on a first pipeline in a sleeving mode, the second sealing shell is used for being arranged on a second pipeline in a sleeving mode, the first sealing shell and the second sealing shell can be in butt joint and jointly define a flange containing space, the flange containing space is used for containing a flange of the first pipeline and a flange of the second pipeline, and the first sealing shell is detachably connected with the second sealing shell through a fixing piece. The sealing piece is arranged between the first sealing shell and the second sealing shell and located on the outer side of the joint of the flange of the first pipeline and the flange of the second pipeline. When the sealing element needs to be disassembled for maintenance or replaced, only the first sealing shell and the second sealing shell need to be separated, the disassembling and replacing process of the sealing element is simple, and disassembling and replacing of the sealing element are facilitated.

Description

Technical Field

[0001] The present disclosure relates to the technical field of pipeline connection, and in particular to a pipeline flange sealing device. Background Art

[0002] The connection between pipelines is generally made through flanges at the ends of the pipelines, and a sealing ring is set between the flanges of the two pipelines to seal the connection between the two pipelines. However, during long-term use, due to the failure of the sealing ring between the flanges, the medium in the pipeline is prone to leak from the failed seal and cause losses. In the related art, the replacement and repair of the sealing ring requires the disassembly of the pipeline flange and the separation of the flanges of the two pipelines, and the replacement process of the seal is very cumbersome. Utility Model Content

[0003] The purpose of the present invention is to provide a pipeline flange sealing device to solve the technical problems existing in the related art.

[0004] In order to achieve the above object, the present disclosure provides a pipeline flange sealing device, comprising:

[0005] A first sealing shell, used for sleeved on the first pipeline;

[0006] A second sealing shell, used for being sleeved on a second pipeline, wherein the first sealing shell and the second sealing shell can be butted against each other and jointly enclose a flange accommodating space, wherein the flange accommodating space is used for accommodating a flange of the first pipeline and a flange of the second pipeline;

[0007] a fixing member, through which the first sealing shell is detachably connected to the second sealing shell; and

[0008] The sealing member is arranged between the first sealing shell and the second sealing shell and is located at the outer side of the connection between the flange of the first pipeline and the flange of the second pipeline.

[0009] Optionally, an annular groove is formed on the end surface of the first sealing shell close to the second sealing shell, and the annular groove extends along the circumference of the first sealing shell. An abutment block is formed on the end surface of the second sealing shell close to the first sealing shell, and the abutment block is used to push the seal into the annular groove when the first sealing shell is docked with the second sealing shell.

[0010] Optionally, the pipe flange sealing device further comprises an elastic member, which is arranged in the annular groove, one end of the elastic member abuts against the inner wall of the annular groove, and the other end of the elastic member abuts against a side of the sealing member away from the abutment block.

[0011] Optionally, a first step groove is formed on an end surface of the first sealing shell close to the second sealing shell, and a second step groove is formed on an end surface of the second sealing shell close to the first sealing shell, and the first step groove and the second step groove can form a clamping groove when the first sealing shell and the second sealing shell are butt-jointed;

[0012] The flange of the first pipeline and the flange of the second pipeline are clamped in the clamping groove.

[0013] Optionally, an annular flange extending along the axial direction of the first sealing shell toward the second sealing shell is provided at one end of the first sealing shell close to the second sealing shell, the annular flange surrounds the outside of the second sealing shell, a first plugging hole extending along the radial direction of the first sealing shell is formed on the annular flange, and a second plugging hole extending along the radial direction of the second sealing shell is formed on the second sealing shell;

[0014] The fixing member comprises an inserting rod, and the inserting rod is used to pass through the first inserting hole and the second inserting hole in sequence.

[0015] Optionally, the plug-in rod is magnetic, and a magnet is provided in the second plug-in hole, and the magnet is used for magnetically adsorbing the plug-in rod inserted into the second plug-in hole.

[0016] Optionally, a limiting groove is formed on the hole wall of the first plug hole, the limiting groove extends radially along the first sealing shell, and a limiting block is formed on the plug rod, and the limiting block is slidably fitted in the limiting groove.

[0017] Optionally, a pull ring is formed at one end of the plug-in rod located outside the first sealing shell.

[0018] Optionally, a first sliding block extending in the radial direction of the first sealing shell is provided on the inner circumferential surface of the first sealing shell close to the first pipe, and the first sliding block is used for slidingly cooperating with a first sliding groove extending in the axial direction of the first pipe on the first pipe;

[0019] A second sliding block extending in the radial direction of the second sealing shell is arranged on the inner circumferential surface of the second sealing shell close to the second pipe, and the second sliding block is used for slidingly cooperating with a second sliding groove extending in the axial direction of the second pipe on the second pipe.

[0020] Optionally, the first sealing shell includes a first axial portion extending in the axial direction of the first pipe and a first radial portion extending in the radial direction of the first pipe, and the second sealing shell includes a second axial portion extending in the axial direction of the second pipe and a second radial portion extending in the radial direction of the second pipe;

[0021] The first radial portion is used to be sleeved on the first pipe, the second radial portion is used to be sleeved on the second pipe, the first axial portion and the second axial portion can be connected to each other, and the first axial portion, the first radial portion, the second axial portion and the second radial portion together form the flange accommodating space.

[0022] Through the above technical solution, the first sealing shell sleeved on the first pipe and the second sealing shell sleeved on the second pipe are relatively connected to form a flange accommodating space, so that the flange of the first pipe and the flange of the second pipe are accommodated in the flange accommodating space. A seal is arranged between the first sealing shell and the second sealing shell, so that the flange accommodating space has sealing properties, and the liquid overflowing from between the flange of the first pipe and the flange of the second pipe will not be discharged from the external environment of the flow channel of the flange accommodating space, thereby indirectly sealing the connection between the flange of the first pipe and the flange of the second pipe, and improving the sealing properties of the connection between the flange of the first pipe and the flange of the second pipe. When the seal needs to be disassembled for maintenance or replacement, it is only necessary to separate the first sealing shell from the second sealing shell, without disassembling the flange of the first pipe and the flange of the second pipe, and separate the flange of the first pipe from the flange of the second pipe. The disassembly and replacement process of the seal is simple, which is convenient for disassembly and replacement of the seal.

[0023] In addition, during daily use, the first sealing shell and the second sealing shell can also protect the flange and reduce the impact of the flange on the external environment.

[0024] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0026] Figure 1 It is a structural schematic diagram of a pipeline flange sealing device provided in an exemplary embodiment of the present disclosure being assembled on a pipeline;

[0027] Figure 2 is a schematic structural diagram of a first sealing shell provided in an exemplary embodiment of the present disclosure being assembled on a first pipe;

[0028] Figure 3 is a cross-sectional schematic diagram of a pipeline flange sealing device provided in an exemplary embodiment of the present disclosure being assembled on a pipeline;

[0029] Figure 4 yes Figure 3 A magnified schematic diagram of part A;

[0030] Figure 5 is a cross-sectional schematic diagram of a pipeline flange sealing device provided in an exemplary embodiment of the present disclosure being assembled on a pipeline (with Figure 3 different perspectives);

[0031] Figure 6 yes Figure 5 Schematic diagram of the enlarged portion B.

[0032] Description of Reference Numerals

[0033] 1. First pipeline; 2. Second pipeline; 3. First sealing shell; 301. First axial portion; 302. First radial portion; 4. Second sealing shell; 401. Second axial portion; 402. Second radial portion; 5. Flange accommodating space; 6. Fixing member; 601. Plug-in rod; 7. Sealing member; 8. Annular groove; 9. Abutment block; 10. Elastic member; 11. First stepped groove; 12. Second stepped groove; 13. Annular flange; 14. First plug-in hole; 15. Second plug-in hole; 16. Magnet; 17. Limiting groove; 18. Limiting block; 19. Pull ring; 20. First slider; 21. First slide groove; 22. Second slider; 23. Second slide groove. DETAILED DESCRIPTION

[0034] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0035] In the present disclosure, unless otherwise specified, “inside and outside” refer to the inside and outside of the outline of each component itself, and “first and second” are for distinguishing one element from another.

[0036] like Figure 1-Figure 6 As shown, the present disclosure provides a pipeline flange sealing device, including a first sealing shell 3, a second sealing shell 4, a fixing member 6 and a sealing member 7. The first sealing shell 3 is used to be sleeved on the first pipeline 1; the second sealing shell 4 is used to be sleeved on the second pipeline 2, the first sealing shell 3 and the second sealing shell 4 can be butted against each other and jointly enclose a flange accommodating space 5, the flange accommodating space 5 is used to accommodate the flange of the first pipeline 1 and the flange of the second pipeline 2, and the first sealing shell 3 is detachably connected to the second sealing shell 4 through the fixing member 6. The sealing member 7 is arranged between the first sealing shell 3 and the second sealing shell 4, and is located outside the connection between the flange of the first pipeline 1 and the flange of the second pipeline 2.

[0037] Through the above technical solution, the first sealing shell 3 sleeved on the first pipe 1 and the second sealing shell 4 sleeved on the second pipe 2 are relatively connected to form a flange accommodating space 5, so that the flange of the first pipe 1 and the flange of the second pipe 2 are accommodated in the flange accommodating space 5. The sealing member 7 is arranged between the first sealing shell 3 and the second sealing shell 4, so that the flange accommodating space 5 has sealing properties, and the liquid overflowing from the flange of the first pipe 1 and the flange of the second pipe 2 will not flow into the external environment of the flange accommodating space 5, thereby indirectly sealing the connection between the flange of the first pipe 1 and the flange of the second pipe 2, and improving the sealing properties of the connection between the flange of the first pipe 1 and the flange of the second pipe 2. When the sealing member 7 needs to be disassembled, maintained or replaced, it is only necessary to separate the first sealing shell 3 from the second sealing shell 4, without disassembling the flange of the first pipe 1 and the flange of the second pipe 2, and separate the flange of the first pipe 1 and the flange of the second pipe 2. The disassembly and replacement process of the sealing member 7 is simple, and the disassembly and replacement of the sealing member 7 is convenient.

[0038] In addition, during daily use, the first sealing shell 3 and the second sealing shell 4 can also protect the flange and reduce the impact of the flange on the external environment.

[0039] As an exemplary embodiment, the sealing member 7 can be a rubber sealing ring or a silicone sealing ring. In the present disclosure, there can be many ways to fix the sealing member 7, as long as the sealing member 7 can be fixed between the first sealing shell 3 and the second sealing shell 4.

[0040] In order to facilitate the fixing of the seal 7 between the first sealing shell 3 and the second sealing shell 4, optionally, an annular groove 8 is formed on the end surface of the first sealing shell 3 close to the second sealing shell 4, and the annular groove 8 extends along the circumference of the first sealing shell 3, and an abutment block 9 is formed on the end surface of the second sealing shell 4 close to the first sealing shell 3, and the abutment block 9 is used to push the seal 7 into the annular groove 8 when the first sealing shell 3 and the second sealing shell 4 are docked. In this way, the seal 7 can be placed in the annular groove 8 to facilitate positioning of the seal 7. When the first sealing shell 3 and the second sealing shell 4 are docked, the abutment block 9 can push the seal 7 into the annular groove 8 to facilitate installation and fixation of the seal 7, and fix the seal 7 between the first sealing shell 3 and the second sealing shell 4.

[0041] Optionally, the pipeline flange sealing device further comprises an elastic member 10, which is arranged in the annular groove 8, one end of the elastic member 10 abuts against the inner wall of the annular groove 8, and the other end of the elastic member 10 abuts against the side of the seal 7 away from the abutment block 9. Here, it can be understood that when the seal 7 is not installed in the annular groove 8, the elastic member 10 can be in a free state, and when the seal 7 is pushed into the annular groove 8 by the abutment block 9, the elastic member 10 will be in a compressed state. Thus, after the first sealing shell 3 and the second sealing shell 4 are separated, the elastic member 10 originally in a compressed state can release the elastic force and eject the seal 7 installed in the annular groove 8, so as to check the damaged state of the seal 7 and facilitate the replacement of the seal 7.

[0042] Optionally, the elastic member 10 may be a spring or an elastic block, etc.

[0043] In order to facilitate fixing the first sealing shell 3 and the second sealing shell 4 outside the flange, optionally, a first stepped groove 11 is formed on the end surface of the first sealing shell 3 close to the second sealing shell 4, and a second stepped groove 12 is formed on the end surface of the second sealing shell 4 close to the first sealing shell 3. The first stepped groove 11 and the second stepped groove 12 can form a clamping groove when the first sealing shell 3 and the second sealing shell 4 are docked, and the flange of the first pipeline 1 and the flange of the second pipeline 2 are clamped in the clamping groove. Here, a sealing gasket for abutting against the flange of the first pipeline 1 can be provided in the first stepped groove 11, and a sealing gasket for abutting against the flange of the second pipeline 2 can be provided in the second stepped groove 12, so as to further improve the sealing performance of the connection between the flange of the first pipeline 1 and the flange of the second pipeline 2. That is to say, during the relative docking of the first sealing shell 3 and the second sealing shell 4, the first stepped groove 11 can abut against the flange of the first pipe 1, and the first sealing shell 3 can be limited outside the flange of the first pipe 1; the second stepped groove 12 can abut against the flange of the second pipe 2, and the second sealing shell 4 can be limited outside the flange of the second pipe 2. Then, the first sealing shell 3 and the second sealing shell 4 are connected to form a clamping groove, and the flange of the first pipe 1 and the flange of the second pipe 2 are clamped in the clamping groove to limit the first sealing shell 3 and the second sealing shell 4, so that the first sealing shell 3 and the second sealing shell 4 can be fixed outside the flange.

[0044] In the present disclosure, there are many forms of detachable connection between the first sealing shell 3 and the second sealing shell 4. In some embodiments, an annular flange 13 extending along the axial direction of the first sealing shell 3 toward the second sealing shell 4 is provided at one end of the first sealing shell 3 close to the second sealing shell 4. The annular flange 13 surrounds the outside of the second sealing shell 4, and a first plug-in hole 14 extending along the radial direction of the first sealing shell 3 is formed on the annular flange 13, and a second plug-in hole 15 extending along the radial direction of the second sealing shell 4 is formed on the second sealing shell 4; the fixing member 6 includes a plug-in rod 601, and the plug-in rod 601 is used to pass through the first plug-in hole 14 and the second plug-in hole 15 in sequence. In this way, after the first sealed shell 3 and the second sealed shell 4 are connected, the first plug hole 14 is aligned with the second plug hole 15, and the plug rod 601 is inserted into the aligned first plug hole 14 and the second plug hole 15, so as to facilitate the connection between the first sealed shell 3 and the second sealed shell 4; similarly, the plug rod 601 is pulled out of the second plug hole 15 and the first plug hole 14 in turn, so as to facilitate the disassembly of the first sealed shell 3 and the second sealed shell 4.

[0045] In order to prevent the plug rod 601 from being disengaged from the second plug hole 15, so that the first sealed shell 3 and the second sealed shell 4 are disconnected, optionally, the plug rod 601 has magnetism, and a magnet 16 is provided in the second plug hole 15. The magnet 16 is used to magnetically absorb the plug rod 601 inserted into the second plug hole 15, so as to prevent the plug rod 601 from falling off from the second plug hole 15 when the first sealed shell 3 and the second sealed shell 4 are connected. In some embodiments, the plug rod 601 can be made of some magnetic metal or the plug rod 601 can also be provided with a magnet 16 at one end close to the magnet 16.

[0046] Optionally, a limiting groove 17 is formed on the hole wall of the first plug hole 14, and the limiting groove 17 extends along the radial direction of the first sealing shell 3. A limiting block 18 is formed on the plug rod 601, and the limiting block 18 is slidably fitted in the limiting groove 17 to prevent the plug rod 601 connected to the limiting block 18 from falling off from the first plug hole 14, thereby avoiding the problem of easy loss of the plug rod 601. In some embodiments, in order to facilitate the pulling of the plug rod 601, a pull ring 19 is formed at one end of the plug rod 601 outside the first sealing shell 3, so that maintenance personnel can pull the plug rod 601 to disassemble the connection between the first sealing shell 3 and the second sealing shell 4.

[0047] In the present disclosure, in order to facilitate the rapid and accurate docking of the first sealing shell 3 and the second sealing shell 4, optionally, a first slider 20 extending along the radial direction of the first sealing shell 3 is provided on the inner circumferential surface of the first sealing shell 3 close to the first pipe 1, and the first slider 20 is used to slide with a first slide groove 21 extending along the axial direction of the first pipe 1 on the first pipe 1; a second slider 22 extending along the radial direction of the second sealing shell 4 is provided on the inner circumferential surface of the second sealing shell 4 close to the second pipe 2, and the second slider 22 is used to slide with a second slide groove 23 extending along the axial direction of the second pipe 2 on the second pipe 2. During the docking process of the first sealing shell 3 and the second sealing shell 4, the first sealing shell 3 can be moved toward the second sealing shell 4 along the axial direction of the first pipe 1 through the sliding cooperation of the first slider 20 and the first slide groove 21. Similarly, the second sealing shell 4 can be moved toward the second sealing shell 4 along the axial direction of the second pipe 2 through the sliding cooperation of the second slider 22 and the second slide groove 23. Since the first pipe 1 and the second pipe 2 are coaxial, the first sealing shell 3 and the second sealing shell 4 can be quickly and accurately docked and fixed outside the flange of the first pipe 1 and the flange of the second pipe 2.

[0048] Here, a sealing gasket may be provided at one end of the first chute 21 near the flange of the first pipe 1, a sealing gasket may be provided at one end of the second chute 23 near the flange of the second pipe 2, and a sealing gasket may also be coated on the outer surface of the first slider 20 and the outer surface of the second slider 22. After the first sealing shell 3 and the second sealing shell 4 are docked, the sealing gasket on the first slider 20 cooperates with the sealing gasket in the first chute 21 to seal the gap between the first slider 20 and the first chute 21; the sealing gasket on the second slider 22 cooperates with the sealing gasket in the second chute 23 to seal the gap between the second slider 22 and the second chute 23.

[0049] Optionally, the first sealing shell 3 includes a first axial portion 301 extending along the axial direction of the first pipe 1 and a first radial portion 302 extending along the radial direction of the first pipe 1, and the second sealing shell 4 includes a second axial portion 401 extending along the axial direction of the second pipe 2 and a second radial portion 402 extending along the radial direction of the second pipe 2; the first radial portion 302 is used to be sleeved on the first pipe 1, and the second radial portion 402 is used to be sleeved on the second pipe 2, the first axial portion 301 and the second axial portion 401 can be butted against each other, and the first axial portion 301, the first radial portion 302, the second axial portion 401 and the second radial portion 402 together enclose a flange accommodating space 5. The flange accommodating space 5 can not only reserve space for accommodating the connecting bolts of the flange, but also collect the leaked medium when leakage occurs at the flange connection.

[0050] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0051] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0052] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A pipeline flange sealing device, characterized in that: include: A first sealing shell, used for sleeved on the first pipeline; A second sealing shell, used for being sleeved on a second pipeline, wherein the first sealing shell and the second sealing shell can be butted against each other and jointly enclose a flange accommodating space, wherein the flange accommodating space is used for accommodating a flange of the first pipeline and a flange of the second pipeline; a fixing member, through which the first sealing shell is detachably connected to the second sealing shell; as well as The sealing member is arranged between the first sealing shell and the second sealing shell and is located at the outer side of the connection between the flange of the first pipeline and the flange of the second pipeline.

2. The pipeline flange sealing device according to claim 1, characterized in that: An annular groove is formed on the end surface of the first sealing shell close to the second sealing shell, and the annular groove extends along the circumference of the first sealing shell. An abutment block is formed on the end surface of the second sealing shell close to the first sealing shell, and the abutment block is used to push the seal into the annular groove when the first sealing shell is docked with the second sealing shell.

3. The pipeline flange sealing device according to claim 2, characterized in that: The pipeline flange sealing device also includes an elastic member, which is arranged in the annular groove, one end of the elastic member abuts against the inner wall of the annular groove, and the other end of the elastic member abuts against a side of the sealing member away from the abutment block.

4. The pipeline flange sealing device according to claim 1, characterized in that: A first step groove is formed on the end surface of the first sealing shell close to the second sealing shell, and a second step groove is formed on the end surface of the second sealing shell close to the first sealing shell, and the first step groove and the second step groove can form a clamping groove when the first sealing shell and the second sealing shell are butt-jointed; The flange of the first pipeline and the flange of the second pipeline are clamped in the clamping groove.

5. The pipeline flange sealing device according to claim 1, characterized in that: An annular flange extending along the axial direction of the first sealing shell toward the second sealing shell is provided at one end of the first sealing shell close to the second sealing shell, the annular flange surrounds the outside of the second sealing shell, a first plugging hole extending along the radial direction of the first sealing shell is formed on the annular flange, and a second plugging hole extending along the radial direction of the second sealing shell is formed on the second sealing shell; The fixing member comprises an inserting rod, and the inserting rod is used to pass through the first inserting hole and the second inserting hole in sequence.

6. The pipeline flange sealing device according to claim 5, characterized in that: The plug-in rod is magnetic, and a magnet is arranged in the second plug-in hole. The magnet is used for magnetically adsorbing the plug-in rod inserted into the second plug-in hole.

7. The pipeline flange sealing device according to claim 5, characterized in that: A limiting groove is formed on the hole wall of the first plug hole, and the limiting groove extends along the radial direction of the first sealing shell. A limiting block is formed on the plug rod, and the limiting block is slidably fitted in the limiting groove.

8. The pipeline flange sealing device according to claim 5, characterized in that: A pull ring is formed at one end of the plug rod located outside the first sealing shell.

9. The pipeline flange sealing device according to any one of claims 1 to 8, characterized in that: A first sliding block extending in the radial direction of the first sealing shell is provided on the inner circumferential surface of the first sealing shell close to the first pipe, and the first sliding block is used for slidingly cooperating with a first sliding groove extending in the axial direction of the first pipe on the first pipe; A second sliding block extending in the radial direction of the second sealing shell is arranged on the inner circumferential surface of the second sealing shell close to the second pipe, and the second sliding block is used for slidingly cooperating with a second sliding groove extending in the axial direction of the second pipe on the second pipe.

10. The pipeline flange sealing device according to any one of claims 1 to 8, characterized in that: The first sealing shell includes a first axial portion extending in the axial direction of the first pipe and a first radial portion extending in the radial direction of the first pipe, and the second sealing shell includes a second axial portion extending in the axial direction of the second pipe and a second radial portion extending in the radial direction of the second pipe; The first radial portion is used to be sleeved on the first pipe, the second radial portion is used to be sleeved on the second pipe, the first axial portion and the second axial portion can be connected to each other, and the first axial portion, the first radial portion, the second axial portion and the second radial portion together form the flange accommodating space.

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