CN220749366U - Flange sealing assembly for coking oil gas pipeline - Google Patents
Flange sealing assembly for coking oil gas pipeline Download PDFInfo
- Publication number
- CN220749366U CN220749366U CN202322285872.4U CN202322285872U CN220749366U CN 220749366 U CN220749366 U CN 220749366U CN 202322285872 U CN202322285872 U CN 202322285872U CN 220749366 U CN220749366 U CN 220749366U
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- CN
- China
- Prior art keywords
- flange
- groove
- seal
- sealing ring
- flange piece
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- 238000007789 sealing Methods 0.000 title claims abstract description 114
- 238000004939 coking Methods 0.000 title claims abstract description 10
- 238000009530 blood pressure measurement Methods 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims 2
- 238000010168 coupling process Methods 0.000 claims 2
- 238000005859 coupling reaction Methods 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 15
- 239000011261 inert gas Substances 0.000 description 5
- 238000004880 explosion Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model discloses a flange sealing assembly for a coking oil-gas pipeline, which comprises a first flange piece, a second flange piece, an outer sealing ring, an inner sealing ring, a sealing cavity, bolts, a pressurizing pipe joint and a pressure measuring pipe joint, wherein the first flange piece is connected with the second flange piece, the outer sealing ring and the inner sealing ring are positioned between the first flange piece and the second flange piece, a first inner sealing ring groove and a first outer sealing ring which are concentric with a flange are arranged on the sealing side of the first flange piece, a first sealing cavity groove is arranged on the flange surface between the first inner sealing ring groove and the first outer sealing ring groove, a pressurizing hole and a pressure measuring hole are arranged on the first sealing cavity groove, a second inner sealing ring groove and the first outer sealing ring groove which are concentric with the flange are arranged on the second flange piece, a second sealing cavity groove is arranged on the flange surface between the second inner sealing ring groove and the second outer sealing ring groove, and a sealing cavity is formed after the first sealing cavity groove and the second sealing cavity groove are closed. The flange sealing assembly has the advantages of good sealing effect, easiness in monitoring leakage and the like.
Description
Technical Field
The utility model belongs to the technical field of mechanical sealing, and particularly relates to a flange sealing assembly for a coking oil gas pipeline.
Background
The oil gas pipeline of the coking plant is a conveying pipeline of tar, coal gas and other mediums, and the conveying medium has the characteristics of inflammability, explosiveness and the like, so that the oil gas pipeline of the coking plant is important in the leakage prevention work. Leakage of the oil gas pipeline mostly occurs at the flange joint, and abrasion of the flange surface, attenuation of bolt stress and the like can cause oil gas leakage at the flange joint, so that risks such as fire and explosion are caused. Therefore, leakage prevention and leakage alarm at the flange connection of the oil and gas pipeline are important. However, the prior oil gas pipeline flange has a simpler structure, and cannot effectively control and prevent oil gas leakage.
Disclosure of Invention
In order to solve the technical problems, the utility model discloses a flange sealing assembly for a coking oil gas pipeline, which has the advantages of good sealing effect, easiness in monitoring leakage and the like.
In order to achieve the technical purpose, the utility model adopts the following technical scheme:
the utility model provides a flange seal assembly for coking oil gas pipeline, includes first flange piece, second flange piece, outer sealing washer, interior sealing washer, seal chamber, bolt, forcing joint, first flange piece and second flange piece pass through bolted connection, and outer sealing washer and interior sealing washer are located between first flange piece and the second flange piece, first flange piece sealed side be equipped with first inner seal annular and first outer sealing ring of flange endocentric, the flange face between first inner seal annular and the first outer seal annular is equipped with first seal chamber groove, is equipped with pressurization hole and pressure measurement hole on the first seal chamber groove, is equipped with fixed screw on the flange face in the outside of first outer seal annular, the second flange piece be equipped with the concentric second inner seal annular of flange and first outer seal annular, the flange face between second inner seal annular and the second outer seal annular is equipped with the second seal chamber groove, forms the seal chamber after first seal chamber groove and the closure of second seal chamber groove.
Further, the first inner sealing ring groove is opposite to the second inner sealing ring groove, the first outer sealing ring groove is opposite to the second outer sealing ring groove, the groove depth is 2-3mm, and the bottom of the groove is arc-shaped.
Further, the outer sealing ring is installed in the first outer sealing ring groove and the second outer sealing ring groove, the inner sealing ring is installed in the first inner sealing ring groove and the second inner sealing ring groove, and after the first flange piece and the second flange piece are fastened through bolts, the outer sealing ring and the inner sealing ring are embedded into corresponding grooves.
Furthermore, the first sealing cavity groove and the second sealing cavity groove are semicircular grooves, and the diameter of each groove is 3-5mm.
Further, the pressure pipe joint is connected with the pressure hole, and the pressure pipe joint is connected with the pressure hole.
Further, the pressurizing hole is opposite to the pressure measuring hole.
Further, the number of the fixed screw holes is 5-10.
According to the flange sealing assembly for the coking oil and gas pipeline, two flange sealing surfaces adopt the inner sealing ring and the outer sealing ring to carry out physical mechanical sealing, the flange sealing surface between the two sealing rings is provided with the sealing cavity groove, the two flanges are fastened to form the sealing cavity, inert gas is injected into the pressurizing hole through the pressurizing pipe joint, so that the inert gas with certain pressure is sealed in the sealing cavity, the pressure detecting sensor is connected through the pressure measuring pipe joint, and the gas pressure in the sealing cavity is monitored in real time, so that the sealing condition can be obtained. When the sealing condition of the inner sealing ring and the outer sealing ring is good, the pressure of the inert gas in the sealing cavity can be kept unchanged for a long time, and when the inner sealing ring or the outer sealing ring leaks, the pressure of the inert gas in the sealing cavity can be rapidly reduced, so that the flange is required to be inspected and maintained. And when the inert gas is filled, the air can be prevented from entering the pipeline to cause explosion risk when the inner sealing ring leaks.
Drawings
FIG. 1 is a schematic structural view of a flange seal assembly for a coker gas conduit according to the present utility model;
fig. 2 is a schematic structural view of a first flange plate according to the present utility model.
The sealing device comprises a first flange plate, a second flange plate, a 3-outer sealing ring, a 4-inner sealing ring, a 5-sealing cavity, a 6-bolt, a 7-pressurizing pipe joint, an 8-pressure measuring pipe joint, a 101-first inner sealing ring groove, a 102-first outer sealing ring groove, a 103-pressurizing hole, a 104-pressure measuring hole, a 105-first sealing cavity groove, a 106-fixing screw hole, a 201-second inner sealing ring groove, a 202-second outer sealing ring groove and a 205-second sealing cavity groove.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
In the description of the present utility model, unless specified and limited otherwise, it is to be noted that the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be mechanical or electrical, or may be in communication with each other between two elements, directly or indirectly via an intervening medium, for example. The specific meaning of the terms described above will be understood by those of ordinary skill in the art as the case may be.
1-2, a flange sealing assembly for a coked oil and gas pipeline comprises a first flange piece 1, a second flange piece 2, an outer sealing ring 3, an inner sealing ring 4, a sealing cavity 5, a bolt 6, a pressurizing pipe joint 7 and a pressure measuring pipe joint 8, wherein the first flange piece 1 and the second flange piece 2 are connected through the bolt 6, the outer sealing ring 3 and the inner sealing ring 4 are positioned between the first flange piece 1 and the second flange piece 2, a first inner sealing ring groove 101 and a first outer sealing ring groove 102 which are concentric with the flange are arranged on the sealing side of the first flange piece 1, a first sealing cavity groove 105 is arranged on the flange surface between the first inner sealing ring groove 101 and the first outer sealing ring groove 102, a pressurizing hole 103 and a pressure measuring hole 104 are arranged on the first sealing cavity groove 105, a fixing screw hole 106 is arranged on the flange surface outside the first outer sealing ring groove 102, a second inner sealing ring groove 201 and a first outer sealing ring groove 102 which are concentric with the flange are arranged on the second flange piece 2, a second sealing cavity groove 205 and a second sealing cavity groove 205 is arranged on the flange surface between the second inner sealing ring groove 201 and the second outer sealing ring 202, and a closed cavity 105 is formed after the second sealing cavity 5 is formed; the first inner sealing ring groove 101 is opposite to the second inner sealing ring groove 201, the first outer sealing ring groove 102 is 2-3mm deep with the second outer sealing ring groove 202, and the bottom of the groove is arc-shaped; the first seal cavity groove 105 and the second seal cavity groove 205 are semicircular grooves with the diameter of 3-5mm; the outer sealing ring 3 is arranged in the first outer sealing ring groove 102 and the second outer sealing ring groove 202, the inner sealing ring 4 is arranged in the first inner sealing ring groove 101 and the second inner sealing ring groove 201, and after the first flange piece 1 and the second flange piece 2 are fastened through the bolts 6, the outer sealing ring 3 and the inner sealing ring 4 are embedded into corresponding grooves; the pressurizing hole 103 is opposite to the pressure measuring hole 104, the pressurizing pipe joint 7 is connected with the pressurizing hole 103, the pressure measuring pipe joint 8 is connected with the pressure measuring hole 104, and the number of the fixing screw holes 106 is 5-10.
In the description of the present specification, a description referring to the terms "one embodiment," "example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (7)
1. A flange seal assembly for coking oil gas pipeline, its characterized in that includes first flange piece, second flange piece, outer sealing washer, inner seal circle, seal chamber, bolt, pressurization coupling, pressure measurement coupling, first flange piece and second flange piece pass through bolted connection, and outer sealing washer and inner seal circle are located between first flange piece and the second flange piece, first flange piece sealed side be equipped with the first inner seal annular groove of flange concentric and first outer sealing ring, the flange face between first inner seal annular groove and the first outer seal annular groove is equipped with first seal chamber groove, is equipped with pressure hole and pressure measurement hole on the first seal chamber groove, is equipped with fixed screw on the flange face outside the first outer seal annular groove, the second flange piece be equipped with the concentric second inner seal annular groove of flange and first outer seal annular groove, the flange face between second inner seal annular groove and the second outer seal annular groove is equipped with the second seal chamber groove, forms the seal chamber after first seal chamber groove and the closure.
2. The flange seal assembly for a coked oil and gas pipeline of claim 1 wherein the first inner seal ring groove is located opposite the second inner seal ring groove, the first outer seal ring groove is located opposite the second outer seal ring groove, the groove depth is 2-3mm, and the groove bottom is circular arc.
3. The flange seal assembly for a coked oil and gas pipeline of claim 1, wherein the outer seal ring is installed in a first outer seal ring groove and a second outer seal ring groove, the inner seal ring is installed in a first inner seal ring groove and a second inner seal ring groove, and the outer seal ring and the inner seal ring are embedded into corresponding grooves after the first flange piece and the second flange piece are fastened through bolts.
4. The flange seal assembly for a coked oil and gas pipeline of claim 1 wherein the first and second seal cavity grooves are semi-circular grooves each having a diameter of 3-5mm.
5. A flange seal assembly for a coker oil and gas pipeline as recited in claim 1 wherein said pressure fitting is connected to a pressure port and said pressure fitting is connected to a pressure port.
6. A flange seal assembly for a coker oil and gas pipeline as claimed in claim 1 wherein said pressure port is opposite to a pressure tap position.
7. The flange seal assembly for a coked oil and gas pipeline of claim 1 wherein the number of said set screw holes is 5-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322285872.4U CN220749366U (en) | 2023-08-24 | 2023-08-24 | Flange sealing assembly for coking oil gas pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322285872.4U CN220749366U (en) | 2023-08-24 | 2023-08-24 | Flange sealing assembly for coking oil gas pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220749366U true CN220749366U (en) | 2024-04-09 |
Family
ID=90554699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322285872.4U Active CN220749366U (en) | 2023-08-24 | 2023-08-24 | Flange sealing assembly for coking oil gas pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220749366U (en) |
-
2023
- 2023-08-24 CN CN202322285872.4U patent/CN220749366U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |