Static sealing device for metal pipeline of oil refining and chemical engineering device

Abstract

The utility model relates to the technical field of static sealing of metal pipelines, and discloses a static sealing device of a metal pipeline of an oil refining chemical device, which comprises a sleeve, clamping rings are fixedly connected to the left side and the right side of the sleeve respectively, and a left pipeline and a right pipeline are arranged on the left side and the right side of the outside of the sleeve respectively. Clamping grooves are formed in the right side of the outer wall of the left pipeline and the left side of the outer wall of the right pipeline, the clamping ring on the left side is clamped with the left pipeline through the clamping grooves, the clamping ring on the right side is clamped with the right pipeline through the clamping grooves, metal gaskets are arranged on the outer walls of the clamping rings, and outer sleeve rings are arranged on the outer walls of the clamping rings; and fixing mechanisms are arranged on the outer walls of the two clamping rings. According to the sealing device, the clamping rings are fixedly connected to the outer walls of the left side and the right side of the sleeve, and the clamping grooves are formed in the outer walls of the left pipeline and the right pipeline, so that the two clamping rings are clamped with the left pipeline and the right pipeline, and the sealing performance of the sealing device is improved through the structures such as the metal gasket, the outer lantern ring and the sealing ring.

Description

Technical Field

[0001] The utility model relates to the technical field of metal pipeline static sealing, in particular to a metal pipeline static sealing device for an oil refining and chemical plant. Background Art

[0002] With the continuous advancement of science and technology and the continuous increase in industrial demand, the static sealing technology of metal pipes in oil refining and chemical plants is also constantly developing. In particular, the static sealing requirements for metal pipes with flammable and explosive, high temperature and high pressure, toxic and harmful, and highly corrosive media are extremely strict. How to effectively control the static sealing points of metal pipes during the construction of oil refining and chemical plants, meet the requirements of construction process management, reduce pipeline leakage rate, and improve the first-time acceptance rate of pipelines are issues to be solved.

[0003] In the prior art, static seals are widely used in domestic oil refining and chemical plants. Static seals mainly include gasket seals, metal seals, and rubber seals. Gasket seals are commonly used in the installation of metal pipelines. However, due to the single sealing structure, there is still a problem of pipeline leakage. Summary of the invention

[0004] In order to make up for the above shortcomings, the utility model provides a metal pipeline static sealing device for an oil refining and chemical plant, aiming to improve the problem of pipeline leakage caused by a single sealing structure in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a static sealing device for a metal pipeline of an oil refining and chemical plant, comprising a sleeve, wherein the left and right sides of the sleeve are fixedly connected with a clamping ring, the left and right sides of the outside of the sleeve are respectively provided with a left pipeline and a right pipeline, a clamping groove is provided on the right side of the outer wall of the left pipeline and the left side of the outer wall of the right pipeline, the clamping ring on the left side is engaged with the left pipeline through the clamping groove, and the clamping ring on the right side is engaged with the right pipeline through the clamping groove, the outer wall of the clamping ring is provided with a metal gasket, the outer wall of the clamping ring is provided with an outer sleeve ring, and the outer walls of the two clamping rings are provided with a fixing mechanism.

[0006] As a further description of the above technical solution:

[0007] The fixing mechanism comprises a plurality of screws, and the plurality of screws are equidistantly threadedly connected to the outer wall of the metal gasket, and the outer wall of the outer sleeve is equidistantly threadedly connected to a plurality of bolts.

[0008] As a further description of the above technical solution:

[0009] The outer wall of the metal gasket is provided with a sealing ring.

[0010] As a further description of the above technical solution:

[0011] The inner wall of the sleeve is provided with a filling ring.

[0012] As a further description of the above technical solution:

[0013] The left and right sides of the filling ring are both configured as curved surfaces.

[0014] As a further description of the above technical solution:

[0015] A groove is provided in the middle of the outer wall of the sleeve.

[0016] As a further description of the above technical solution:

[0017] The top end of the screw is fixedly connected with a nut.

[0018] The utility model has the following beneficial effects:

[0019] 1. In the utility model, by fixing the connecting clamps on the left and right outer walls of the sleeve, the clamping grooves are provided on the outer walls of the left and right pipes, so that the two clamps are engaged with the left and right pipes, and then the sealing performance of the sealing device is improved by structures such as metal gaskets, outer sleeves, and sealing rings.

[0020] 2. In the utility model, the metal gasket is threadedly connected to the outer wall of the clamping ring by screws, and the clamping ring and the clamping groove are fixed by bolts, so as to improve the stability of the device and prevent the pipe and the clamping ring from falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural disassembly diagram of the metal pipeline static sealing device of the oil refining and chemical plant proposed by the utility model;

[0022] Figure 2 for Figure 1 A in the enlarged view;

[0023] Figure 3 This is a cross-sectional view of the metal pipeline static sealing device of the oil refining and chemical plant proposed by the utility model;

[0024] Figure 4 This is a three-dimensional diagram of the static sealing device for metal pipelines of an oil refining and chemical plant proposed by the utility model.

[0025] Legend:

[0026] 1. Sleeve; 2. Fixing mechanism; 201. Screw; 202. Bolt; 3. Snap ring; 4. Left pipe; 5. Right pipe; 6. Slot; 7. Metal gasket; 8. Outer ring; 9. Sealing ring; 10. Curved surface; 11. Groove; 12. Filling ring; 13. Nut. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Reference Figure 1 , Figure 2 and Figure 4 The utility model provides an embodiment: a metal pipeline static sealing device for an oil refining and chemical device, comprising a sleeve 1, a clamping ring 3 is fixedly connected to the left and right sides of the sleeve 1, a left pipeline 4 and a right pipeline 5 are respectively arranged on the left and right sides of the outer wall of the sleeve 1, a clamping groove 6 is opened on the right side of the outer wall of the left pipeline 4 and the left side of the outer wall of the right pipeline 5, the left clamping ring 3 is clamped with the left pipeline 4 through the clamping groove 6, and the right clamping ring 3 is clamped with the right pipeline 5 through the clamping groove 6, a metal gasket 7 is arranged on the outer wall of the clamping ring 3, an outer sleeve ring 8 is arranged on the outer wall of the two clamping rings 3, and a fixing mechanism 2 is arranged on the outer wall of the two clamping rings 3; a sealing ring 9 is arranged on the outer wall of the metal gasket 7;

[0029] Specifically, by arranging a clamping ring 3 on the left and right sides of the outer wall of the sleeve 1, the clamping ring is respectively engaged with the clamping groove 6 opened in the left pipe 4 and the right pipe 5, so as to ensure the initial sealing of the device, and a metal gasket 7 and an outer sleeve ring 8 are arranged on the outer wall of the clamping ring 3, and then a sealing ring 9 is arranged on the outer side of the metal gasket 7 to further improve the sealing performance of the device.

[0030] Reference Figure 1 The fixing mechanism 2 includes a plurality of screws 201, which are equidistantly threadedly connected to the outer wall of the metal gasket 7, and a plurality of bolts 202 are equidistantly threadedly connected to the outer wall of the outer ring 8; the top of the screw 201 is fixedly connected to the nut 13;

[0031] Specifically, the card changer 3 and the metal gasket 7 are threadedly connected by screws 201. Since the metal gasket 7 is in contact with the outer wall of the pipe, the stability of the device can be improved by fixing the metal gasket 7. By providing a nut 13, it can be convenient for assembly and disassembly, and it is convenient for operators to use. At the same time, the left pipe 4 and the right pipe 5 are respectively threadedly connected to the two outer rings 8 by bolts 202, thereby ensuring the stability of the device.

[0032] Reference Figure 1 and Figure 3 The inner wall of the sleeve 1 is provided with a filling ring 12; the left and right sides of the filling ring 12 are both provided with curved surfaces 10; a groove 11 is provided in the middle of the outer wall of the sleeve 1;

[0033] Specifically, by setting a filling ring 12, the gap at the connection can be filled to improve the sealing of the device; at the same time, setting the left and right sides of the filling ring 12 as curved surfaces 10 can reduce the resistance of the fluid flowing in the pipeline; and by opening a groove 11 in the middle of the outer wall of the sleeve 1, it is convenient for personnel to operate.

[0034] Working principle: In two pipes that need to be connected, a groove 6 is provided on the right side of the outer wall of the left pipe 4 and the left side of the outer wall of the right pipe 5. A clamping ring 3 is fixedly connected to the left and right sides of the outer wall of the sleeve 1. The two clamping rings 3 are opened and closed with the grooves 6 of the left pipe 4 and the right pipe 5 respectively. The grooves 6 need to have a certain depth to ensure stable clamping with the clamping rings 3. A metal gasket 7 is arranged on the outer wall of the clamping ring 3. The metal gasket 7 just contacts the outer walls of the left pipe 4 and the right pipe 5 to fill the gap at the connection and increase the sealing performance. An outer sleeve ring 8 is arranged on the rear side of the metal gasket 7. The outer sleeve ring 8 can further improve the sealing performance of the device. The connection between the metal gasket 7 and the outer sleeve ring 8 is then sealed by a sealing ring 9. A filling ring 12 is arranged on the inner wall of the sleeve 1 to fill the gap at the pipe connection. , increase the sealing performance. Since there is fluid flowing in the pipeline, the inner wall needs to be flat and smooth. The left and right sides of the filling ring 12 are set to the curved surface 10 to ensure that the fluid can flow smoothly, and a plurality of screws 201 are equidistantly arranged on the outer wall of the metal gasket 7. The metal gasket 7 is threadedly connected to the clamping ring 3 through the screws 201 to ensure the stability of the device. The nut 13 is fixedly connected at the top of the screw 201. The nut 13 can be convenient for operators to assemble and disassemble, which improves the convenience of the device. At the same time, a plurality of bolts 202 are equidistantly arranged in the middle of the outer wall of the outer sleeve 8. The outer sleeve 8 is fixed to the left pipe 4 and the right pipe 5 through the bolts 202 to prevent the clamping ring 3 from falling off from the clamping groove 6 due to the flow of the fluid in the pipeline, thereby ensuring the sealing and stability of the device and meeting the use requirements.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A static sealing device for a metal pipeline of an oil refining and chemical plant, comprising a sleeve (1), characterized in that: The left and right sides of the sleeve (1) are fixedly connected with a clamping ring (3), and the left and right sides of the outside of the sleeve (1) are respectively provided with a left pipe (4) and a right pipe (5). A clamping groove (6) is provided on the right side of the outer wall of the left pipe (4) and the left side of the outer wall of the right pipe (5). The left clamping ring (3) is engaged with the left pipe (4) through the clamping groove (6), and the right clamping ring (3) is engaged with the right pipe (5) through the clamping groove (6). The outer wall of the clamping ring (3) is provided with a metal gasket (7), and the outer wall of the clamping ring (3) is provided with an outer sleeve ring (8). The outer walls of the two clamping rings (3) are provided with a fixing mechanism (2).

2. The metal pipeline static sealing device for oil refining and chemical equipment according to claim 1 is characterized in that: The fixing mechanism (2) comprises a plurality of screws (201), wherein the plurality of screws (201) are equidistantly threadedly connected to the outer wall of the metal gasket (7), and the outer wall of the outer sleeve (8) is equidistantly threadedly connected to a plurality of bolts (202).

3. The metal pipeline static sealing device for oil refining and chemical equipment according to claim 1 is characterized by: The outer wall of the metal gasket (7) is provided with a sealing ring (9).

4. The metal pipeline static sealing device for oil refining and chemical equipment according to claim 1 is characterized by: A filling ring (12) is provided on the inner wall of the sleeve (1).

5. The metal pipeline static sealing device for oil refining and chemical equipment according to claim 4 is characterized in that: The left and right sides of the filling ring (12) are both configured as curved surfaces (10).

6. The metal pipeline static sealing device for oil refining and chemical equipment according to claim 1 is characterized by: A groove (11) is provided in the middle of the outer wall of the sleeve (1).

7. The metal pipeline static sealing device for oil refining and chemical equipment according to claim 2 is characterized by: A nut (13) is fixedly connected to the top end of the screw (201).

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