CN209762498U - Flange for chemical pipeline - Google Patents
Flange for chemical pipeline Download PDFInfo
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- CN209762498U CN209762498U CN201920158957.7U CN201920158957U CN209762498U CN 209762498 U CN209762498 U CN 209762498U CN 201920158957 U CN201920158957 U CN 201920158957U CN 209762498 U CN209762498 U CN 209762498U
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- flange
- annular
- anticorrosive coating
- ring
- annular groove
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Abstract
The utility model provides a flange for chemical pipelines, which comprises a first flange plate, a second flange plate, a first sealing ring, a second sealing ring and a leakage-proof cylinder, the first flange plate is provided with a first annular bulge, a first annular groove and a plurality of first connecting holes, the second flange plate is provided with a second annular groove, a second annular bulge and a plurality of second connecting holes, the first annular bulge is matched with the second annular groove, the second annular bulge is matched with the first annular groove, the first sealing ring is positioned on the bottom surface of the second annular groove, the second sealing ring is positioned on the bottom surface of the first annular groove, the flange hole wall of the first flange plate is provided with a first annular notch, the flange hole wall of the second flange plate is provided with a second annular notch, and the leakage-proof cylinder is clamped in the first annular notch and the second annular notch. The utility model has the advantages of further reduce the leakage possibility of chemical pipeline junction.
Description
Technical Field
The utility model relates to a flange for chemical pipeline.
Background
The pipeline is often used during chemical production, and the flange is often adopted in current chemical pipeline connection to connect, and more problem appears in the pipe connection just is the problem of revealing of pipe connection department. In the prior art, the sealing performance of the pipeline joint is improved by adopting a mode of installing a gasket, the method has a certain effect, but the leakage condition still exists, and the problem to be solved is better to reduce the leakage possibility of the pipeline joint.
Therefore, there is a need for a flange for chemical pipelines that further reduces the possibility of leakage at the chemical pipeline joints.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that the leakage condition still exists in the existing chemical pipeline joint, the utility model aims to provide a flange for chemical pipeline has the advantage that further reduces the leakage possibility of chemical pipeline joint.
The utility model provides a following technical scheme:
A flange for chemical pipeline comprises a first flange plate, a second flange plate, a first sealing ring, a second sealing ring and a leakage-proof cylinder, wherein the first flange plate and the second flange plate are arranged in a corresponding contact manner, a first annular bulge, a first annular groove and a plurality of first connecting holes are arranged on the first flange plate, the first annular bulge is arranged on the end surface of the first flange plate from inside to outside, the first annular bulge is integrally formed with the first flange plate, the first connecting holes are arranged on the periphery of the first annular groove, a second annular bulge and a plurality of second connecting holes are arranged on the second flange plate, the second annular groove and the second annular bulge are arranged on the end surface of the second flange plate from inside to outside, the second annular bulge is integrally formed with the second flange plate, the plurality of second connecting holes are positioned at the periphery of the second annular bulge, the first annular bulge and the second annular groove are matched, the second annular bulge is matched with the first annular groove, the plurality of first connecting holes and the plurality of second connecting holes are arranged in a one-to-one correspondence manner, the first sealing ring is positioned on the bottom surface of the second annular groove, the second sealing ring is positioned on the bottom surface of the first annular groove, a first annular gap is arranged on the wall of the flange hole of the first flange plate, a second annular gap corresponding to the first annular gap is arranged on the wall of the flange hole of the second flange plate, the leakage-proof cylinder is clamped in the first annular gap and the second annular gap, and the end walls at two ends of the leakage-proof cylinder are respectively fixed with a third sealing ring, and the two third sealing rings are respectively contacted with the end wall of the first annular gap and the end wall of the second annular gap.
First ring flange and second ring flange are through the bolted connection who passes first connecting hole and second connecting hole, first annular bulge is located first annular breach, first sealing washer is located first annular breach, second annular bulge is located second annular breach, the second sealing washer is located second annular breach, first ring flange and second ring flange carry out double sealing through first sealing washer and second sealing washer, the leakproofness is better, prevent to reveal the production, leak protection section of thick bamboo card is in first annular breach and second annular breach, leak protection section of thick bamboo seals through third sealing washer and first annular breach end wall and second annular breach end wall, leak protection section of thick bamboo sets up in first ring flange and second ring flange junction, further prevent to reduce and reveal the possibility.
Preferably, still be fixed with first anticorrosive coating on the flange hole pore wall of first ring flange, still be fixed with second anticorrosive coating on the flange hole pore wall of second ring flange, still be fixed with the third anticorrosive coating on the inner wall of a leak protection section of thick bamboo, first anticorrosive coating with the second anticorrosive coating is located respectively the both ends of third anticorrosive coating.
Preferably, the inner walls of the first anticorrosive coating, the second anticorrosive coating and the third anticorrosive coating are all located on the same straight cylindrical surface.
Preferably, the plurality of first connecting holes are uniformly distributed at the edge of the first flange plate, and the plurality of second connecting holes are uniformly distributed at the edge of the second flange plate.
preferably, the first anticorrosive coating, the second anticorrosive coating and the third anticorrosive coating are made of ceramics. Pottery is corrosion-resistant, and chemical pipeline carries's liquid usually has corrosivity, and the setting of first anticorrosive coating, second anticorrosive coating and third anticorrosive coating reduces the corruption of the liquid of carrying to the flange, further reduces the possibility of revealing of junction.
Preferably, the first sealing ring, the second sealing ring and the third sealing ring are made of polytetrafluoroethylene, and polytetrafluoroethylene has the characteristic of chemical corrosion resistance compared with other plastics and is widely used as a sealing material and a filling material.
The utility model has the advantages that: first ring flange and second ring flange are through the bolted connection who passes first connecting hole and second connecting hole, first annular bulge is located first annular breach, first sealing washer is located first annular breach, second annular bulge is located second annular breach, the second sealing washer is located second annular breach, first ring flange and second ring flange carry out double sealing through first sealing washer and second sealing washer, the leakproofness is better, prevent to reveal the production, leak protection section of thick bamboo card is in first annular breach and second annular breach, leak protection section of thick bamboo seals through third sealing washer and first annular breach end wall and second annular breach end wall, leak protection section of thick bamboo sets up in first ring flange and second ring flange junction, further prevent to reduce and reveal the possibility.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of the present invention;
Labeled as: 1. a first flange plate; 11. a first annular projection; 12. a first annular groove; 13. a first connection hole; 14. a first annular gap; 15. a first corrosion resistant coating; 2. a second flange plate; 21. a second annular groove; 22. a second annular projection; 23. a second connection hole; 24. a second annular gap; 25. a second corrosion resistant coating; 3. a first seal ring; 4. a second seal ring; 5. a leakage-proof cylinder; 51. a third corrosion-resistant coating; 52. and a third sealing ring.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1, a flange for chemical pipeline comprises a first flange plate 1, a second flange plate 2, a first sealing ring 3, a second sealing ring 4 and a leakage-proof tube 5, wherein the first flange plate 1 and the second flange plate 2 are arranged in a corresponding contact manner, a first annular protrusion 11, a first annular groove 12 and a plurality of first connecting holes 13 are arranged on the first flange plate 1, the first annular protrusion 11 and the first annular groove 12 are arranged on the end surface of the first flange plate 1 from inside to outside, the first annular protrusion 11 and the first flange plate 1 are integrally formed, the plurality of first connecting holes 13 are positioned on the periphery of the first annular groove 12, the plurality of first connecting holes 13 are uniformly distributed on the edge of the first flange plate 1, and a second annular groove 21, a second annular protrusion 22 and a plurality of second connecting holes 23 are arranged on the second flange plate 2, the second annular groove 21 and the second annular bulge 22 are arranged on the end face of the second flange plate 2 from inside to outside, the second annular bulge 22 and the second flange plate 2 are integrally formed, a plurality of second connecting holes 23 are arranged on the periphery of the second annular bulge 22, a plurality of second connecting holes 23 are uniformly distributed on the edge of the second flange plate 2, the first annular bulge 11 and the second annular groove 21 are matched and arranged, the second annular bulge 22 and the first annular groove 12 are matched and arranged, a plurality of first connecting holes 13 and a plurality of second connecting holes 23 are arranged in a one-to-one correspondence manner, the first flange plate 1 and the second flange plate 2 are connected through bolts penetrating through the first connecting holes 13 and the second connecting holes 23, the first sealing ring 3 is arranged on the bottom face of the second annular groove 21, and the second sealing ring 4 is arranged on the bottom face of the first annular groove 12, the first flange plate 1 and the second flange plate 2 are sealed in a double way through a first sealing ring 3 and a second sealing ring 4, the sealing performance is better, leakage is prevented, a first annular notch 14 is arranged on the wall of a flange hole of the first flange plate 1, a second annular notch 24 corresponding to the first annular notch 14 is arranged on the wall of the flange hole of the second flange plate 2, a leakage-proof cylinder 5 is clamped in the first annular notch 14 and the second annular notch 24, third sealing rings 52 are fixed on end walls at two ends of the leakage-proof cylinder 5, the two third sealing rings 52 are respectively contacted with the end wall of the first annular notch 14 and the end wall of the second annular notch 24, the leakage-proof cylinder 5 is sealed with the end wall of the first annular notch 14 and the end wall of the second annular notch 24 through the third sealing rings 52, the leakage-proof cylinder 5 is arranged at the joint of the first flange plate 1 and the second flange plate 2, further preventing the reduction of the possibility of leakage, the first seal ring 3, the second seal ring 4 and the third seal ring 52 are made of teflon, which has a chemical resistance compared with other plastics and has been widely used as a sealing material and a filling material.
Still be fixed with first anticorrosive coating 15 on the flange hole pore wall of first ring flange 1, still be fixed with second anticorrosive coating 15 on the flange hole pore wall of second ring flange 2, still be fixed with third anticorrosive coating 51 on the inner wall of leak protection section of thick bamboo 5, first anticorrosive coating 15 with second anticorrosive coating 25 is located respectively the both ends of third anticorrosive coating 51, first anticorrosive coating 15, second anticorrosive coating 25 and the inner wall of third anticorrosive coating 51 all is located same straight cylinder face, first anticorrosive coating 15, second anticorrosive coating 25 and the material of third anticorrosive coating 51 are ceramic, and the pottery is corrosion-resistant, and chemical pipeline transport's liquid usually has corrosivity, first anticorrosive coating 15, second anticorrosive coating 25 and the setting of third anticorrosive coating 51 reduces the corruption of the liquid of carrying to the flange, further reducing the likelihood of leakage at the connection.
The utility model discloses working method: the first flange plate 1 and the second flange plate 2 are connected through bolts penetrating through the first connecting hole 13 and the second connecting hole 23, the first annular protrusion 11 is positioned in the first annular gap 21, the first sealing ring 3 is positioned in the first annular gap 21, the second annular protrusion 22 is positioned in the second annular gap 12, the second sealing ring 4 is positioned in the second annular gap 12, the first flange plate 1 and the second flange plate 2 are in double sealing through the first sealing ring 3 and the second sealing ring 4, the sealing performance is better, leakage is prevented, the leakage-proof cylinder 5 is clamped in the first annular gap 14 and the second annular gap 24, the leakage-proof cylinder 5 is sealed with the end wall of the first annular gap 14 and the end wall of the second annular gap 24 through the third sealing ring 52, the leakage-proof cylinder 5 is arranged at the joint of the first flange plate 1 and the second flange plate 2, the leakage possibility is further prevented from being reduced, the first anticorrosive coating 15, The provision of the second and third corrosion protection coatings 25, 51 reduces corrosion of the flange by the liquid being transported, further reducing the possibility of leakage at the joint.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a flange for chemical pipeline, its characterized in that, includes first ring flange, second ring flange, first sealing washer, second sealing washer and leak protection section of thick bamboo, first ring flange with the second ring flange corresponds the contact setting, be equipped with first annular arch, first annular groove and a plurality of first connecting hole on the first ring flange, first annular arch with first annular groove sets up on the terminal surface of first ring flange from inside to outside, first annular arch with first ring flange integrated into one piece, a plurality of first connecting holes are located the periphery of first annular groove, be equipped with second annular groove, second annular arch and a plurality of second connecting hole on the second ring flange, second annular groove with second annular arch sets up from inside to outside on the terminal surface of second ring flange, second annular arch with second ring flange integrated into one piece, the plurality of second connecting holes are positioned at the periphery of the second annular bulge, the first annular bulge and the second annular groove are matched, the second annular bulge is matched with the first annular groove, the plurality of first connecting holes and the plurality of second connecting holes are arranged in a one-to-one correspondence manner, the first sealing ring is positioned on the bottom surface of the second annular groove, the second sealing ring is positioned on the bottom surface of the first annular groove, a first annular gap is arranged on the wall of the flange hole of the first flange plate, a second annular gap corresponding to the first annular gap is arranged on the wall of the flange hole of the second flange plate, the leakage-proof cylinder is clamped in the first annular gap and the second annular gap, and the end walls at two ends of the leakage-proof cylinder are respectively fixed with a third sealing ring, and the two third sealing rings are respectively contacted with the end wall of the first annular gap and the end wall of the second annular gap.
2. The flange for the chemical pipeline according to claim 1, wherein a first anticorrosive coating is further fixed on the wall of the flange hole of the first flange plate, a second anticorrosive coating is further fixed on the wall of the flange hole of the second flange plate, a third anticorrosive coating is further fixed on the inner wall of the leakage-proof cylinder, and the first anticorrosive coating and the second anticorrosive coating are respectively located at two ends of the third anticorrosive coating.
3. The flange for the chemical pipeline according to claim 2, wherein inner walls of the first anticorrosive coating, the second anticorrosive coating and the third anticorrosive coating are all located on the same straight cylindrical surface.
4. The flange for the chemical pipeline according to claim 1, wherein a plurality of first connection holes are uniformly distributed on the edge of the first flange plate, and a plurality of second connection holes are uniformly distributed on the edge of the second flange plate.
5. The flange for the chemical pipeline according to claim 2, wherein the first anticorrosive coating, the second anticorrosive coating and the third anticorrosive coating are made of ceramic.
6. The flange for the chemical pipeline according to claim 1, wherein the first sealing ring, the second sealing ring and the third sealing ring are made of polytetrafluoroethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920158957.7U CN209762498U (en) | 2019-01-30 | 2019-01-30 | Flange for chemical pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920158957.7U CN209762498U (en) | 2019-01-30 | 2019-01-30 | Flange for chemical pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209762498U true CN209762498U (en) | 2019-12-10 |
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ID=68750850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920158957.7U Active CN209762498U (en) | 2019-01-30 | 2019-01-30 | Flange for chemical pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209762498U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117450347A (en) * | 2023-12-18 | 2024-01-26 | 山东东信塑胶科技有限公司 | Chemical industry is with compound ABR pipe and sealing connection structure thereof |
-
2019
- 2019-01-30 CN CN201920158957.7U patent/CN209762498U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117450347A (en) * | 2023-12-18 | 2024-01-26 | 山东东信塑胶科技有限公司 | Chemical industry is with compound ABR pipe and sealing connection structure thereof |
| CN117450347B (en) * | 2023-12-18 | 2024-03-19 | 山东东信塑胶科技有限公司 | Chemical industry is with compound ABR pipe and sealing connection structure thereof |
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