CN213629347U - Corrosion-resistant flange for petroleum equipment - Google Patents
Corrosion-resistant flange for petroleum equipment Download PDFInfo
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- CN213629347U CN213629347U CN202022758002.0U CN202022758002U CN213629347U CN 213629347 U CN213629347 U CN 213629347U CN 202022758002 U CN202022758002 U CN 202022758002U CN 213629347 U CN213629347 U CN 213629347U
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- flange plate
- flange
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- corrosion
- groove
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- 238000005260 corrosion Methods 0.000 title claims abstract description 39
- 230000007797 corrosion Effects 0.000 title claims abstract description 37
- 239000003208 petroleum Substances 0.000 title claims abstract description 14
- 238000007789 sealing Methods 0.000 claims abstract description 41
- 238000000576 coating method Methods 0.000 claims description 16
- 230000007704 transition Effects 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 25
- 230000001788 irregular Effects 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002905 metal composite material Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a corrosion-resistant flange for petroleum equipment, which belongs to the technical field of petroleum pipeline connecting pieces, and comprises a first flange plate and a second flange plate, wherein the first flange plate is connected with a first pipeline joint, the second flange plate is connected with a second pipeline joint, an inflation tube is utilized to inflate the interior of an annular air bag, so that the annular air bag and a rubber sleeve are integrally expanded, the expanded annular air bag and the rubber sleeve are fully filled in a first annular sealing groove and a second annular groove, thereby realizing the sealing of the joint of the first flange plate and the second flange plate, and the thin seam at the joint of the first flange plate and the second flange plate can be fully filled because the air bag is expanded into irregular expansion, further improving the sealing effect, even if the rubber sleeve is aged and damaged after being used for a long time, the annular air bag can also play a better sealing effect, compared with the gasket and the rubber ring in the prior art, the sealing effect is better.
Description
Technical Field
The utility model relates to a petroleum pipeline connecting piece technical field, more specifically say, relate to a corrosion resistance is flange for oil equipment.
Background
Flanges, also known as flanges or lugs, are the elements that interconnect the pipe to the pipe and are attached to the ends of the pipe. The flange is provided with holes for receiving bolts, and usually, a plurality of fixing holes are formed on the periphery of a metal body similar to a disc for connecting other things. The existing flange connection is that two pipelines, pipe fittings or equipment are respectively fixed on a flange plate, a flange pad is added between the two flange plates and the two flange plates are fastened together by bolts to complete the connection. The flange connection is an important connection mode of pipeline construction, is convenient to use, can bear larger pressure, and is very widely used in industrial pipelines.
The flange is frequently used at the joint of the petroleum pipeline, and the existing flange for the petroleum pipeline has the following defects:
1. part of petroleum has stronger corrosivity, and the existing flange has poorer corrosion resistance, and the long-term corrosion can accelerate the damage of the flange and shorten the service life of the flange.
2. The sealing principle of the flange is that enough pressure is generated between the gasket and the sealing surface of the flange through the pretightening force of the bolts, the gasket is subjected to plastic deformation to fill a tiny gap existing between the sealing surfaces of the flange and block a medium leakage channel, and the sealing effect is achieved, and the gasket is the most important part for flange sealing actually. Gaskets used for flange connection include graphite gaskets, polytetrafluoroethylene gaskets, asbestos-free soft gaskets, rubber gaskets, wound gaskets, metal composite gaskets and the like, and proper sealing materials are selected according to different temperature pressures and sealing media. The gasket can age and wear after long-term use, and the sealing effect of the gasket is affected.
SUMMERY OF THE UTILITY MODEL
1. Technical problem to be solved
Problem to exist among the prior art, an object of the utility model is to provide a corrosion resistance is flange for oil equipment, utilize the gas tube toward the inside inflation of annular gasbag, make annular gasbag and the whole inflation of rubber sleeve, annular gasbag and rubber sleeve after the inflation are inside fully filling up at first annular seal recess and second annular recess, thereby realize the sealed of first ring flange and second ring flange junction, and because the gasbag inflation is irregular inflation, can fully pack the slot of first ring flange and second ring flange junction, further promotion sealed effect, even the rubber sleeve appears ageing damaged phenomenon after using for a long time, the annular gasbag also can play the sealed effect of preferred, it is sealed to compare gasket and rubber circle among the prior art, sealed effect is better.
2. Technical scheme
In order to solve the above problems, the utility model adopts the following technical proposal.
A corrosion-resistant flange for petroleum equipment comprises a first flange plate and a second flange plate, wherein the first flange plate is connected with a first pipeline joint, the second flange plate is connected with a second pipeline joint, bolt positioning holes are formed in the first flange plate and the second flange plate respectively, a plurality of positioning grooves distributed in an annular mode are formed in one side surface, close to the second flange plate, of the first flange plate, a plurality of auxiliary positioning bulges distributed in an annular mode are arranged on one side surface, close to the first flange plate, of the second flange plate, a first annular sealing groove is formed in the outer wall of the first flange plate, a positioning groove is formed in one side surface, close to the second flange plate, of the first flange plate, a second annular groove with the same size as the first annular sealing groove is formed in one side surface, close to the first flange plate, and an annular air bag is fixed at the bottom in the second annular groove, the outside parcel of annular gasbag has the rubber sleeve, the inflation chamber has been seted up to the lower surface of second ring flange, and the inflation chamber is linked together with second annular groove, it is fixed with the gas tube to inflate the intracavity, the one end of gas tube is connected with annular gasbag, the gas tube seal groove that is linked together with the inflation chamber is seted up to the lower surface of second ring flange, it has sealing rubber stopper to imbed in the gas tube seal groove. When the flange is used, the first flange plate and the second flange plate are butted according to a diagram, the auxiliary positioning bulge and the positioning groove are utilized to carry out quick positioning, the use is convenient, then bolts are inserted into the bolt positioning holes to fasten the first flange plate and the second flange plate, then the inflation tube is utilized to inflate the annular air bag to ensure that the annular air bag and the rubber sleeve are integrally expanded, the expanded annular air bag and the rubber sleeve are fully filled in the first annular sealing groove and the second annular groove, thereby realizing the sealing of the joint of the first flange plate and the second flange plate, and because the air bag expands irregularly, the fine seam at the joint of the first flange plate and the second flange plate can be fully filled, the sealing effect is further improved, even if the rubber sleeve is aged and damaged after being used for a long time, the annular air bag can also play a better sealing effect, compared with the gasket and the rubber ring in the prior art, the sealing effect is better.
Furthermore, the auxiliary positioning protrusion and the second flange plate are integrally formed, so that the structural strength of the auxiliary positioning protrusion is ensured.
Furthermore, wear-resistant coatings are smeared on the outer surfaces of the auxiliary positioning protrusions, and the wear-resistant effect of the auxiliary positioning protrusions is effectively improved.
Furthermore, the end face of the auxiliary positioning protrusion is in arc transition, and the inner bottom edge of the positioning groove is also in arc transition, so that abrasion caused by hard scratch between the auxiliary positioning protrusion and the positioning groove can be effectively avoided.
Furthermore, corrosion-resistant coatings are coated on the inner ring walls of the first flange plate and the second flange plate, corrosion-resistant rubber is bonded to the outer sides of the corrosion-resistant coatings, and the corrosion-resistant performance of the flange can be effectively improved by using the corrosion-resistant coatings and the corrosion-resistant rubber.
Further, the rubber sleeve is met water inflation rubber sleeve, meets water and makes the volume inflation to promotion that can be further seals up the effect.
3. Advantageous effects
Compared with the prior art, the utility model has the advantages of:
(1) utilize supplementary positioning arch and positioning groove to carry out quick location, facilitate the use, utilize the gas tube to inflate toward annular gasbag inside, make annular gasbag and rubber sleeve whole inflation, annular gasbag and rubber sleeve after the inflation are inside first annular seal recess and second annular recess to fully filling up, thereby realize the sealed of first ring flange and second ring flange junction, and because the gasbag inflation is irregular inflation, can fully fill the slit of first ring flange and second ring flange junction, further promotion sealed effect, even the rubber sleeve appears ageing damaged phenomenon after using for a long time, annular gasbag also can play the sealed effect of preferred, it is sealed to compare gasket and rubber circle among the prior art, sealed effect is better.
(2) The auxiliary positioning protrusion and the second flange plate are integrally formed, so that the structural strength of the auxiliary positioning protrusion is guaranteed.
(3) The outer surface of the auxiliary positioning bulge is coated with a wear-resistant coating, so that the wear-resistant effect of the auxiliary positioning bulge is effectively improved.
(4) The end face of the auxiliary positioning protrusion is in arc transition, the inner bottom edge of the positioning groove is in arc transition, and abrasion caused by hard scratch generated between the auxiliary positioning protrusion and the positioning groove can be effectively avoided.
(5) The corrosion-resistant coatings are coated on the inner ring walls of the first flange plate and the second flange plate, corrosion-resistant rubber is bonded on the outer sides of the corrosion-resistant coatings, and the corrosion-resistant performance of the flange can be effectively improved by using the corrosion-resistant coatings and the corrosion-resistant rubber.
(6) The rubber sleeve is for meeting water inflation rubber sleeve, and it makes the volume inflation meeting water to can further promote sealed effect.
Drawings
Fig. 1 is a cross-sectional view of the present invention;
FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;
FIG. 3 is a schematic view of the present invention after assembly and positioning;
fig. 4 is an enlarged schematic view of a portion B in fig. 3.
The reference numbers in the figures illustrate:
the sealing structure comprises a first flange plate 1, a second flange plate 2, a first pipeline joint 3, a second pipeline joint 4, a bolt positioning hole 5, an auxiliary positioning protrusion 6, a positioning groove 7, an anti-corrosion coating 8, anti-corrosion rubber 9, a first annular sealing groove 10, a second annular groove 11, an annular air bag 12, a rubber sleeve 13, an air inflation tube 14, an air inflation tube sealing groove 15 and a sealing rubber plug 16.
Detailed Description
The drawings in the embodiments of the present invention will be combined; the technical scheme in the embodiment of the utility model is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the present invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all belong to the protection scope of the utility model.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
referring to fig. 1-2, a corrosion-resistant oil equipment flange comprises a first flange plate 1 and a second flange plate 2, the first flange plate 1 is connected with a first pipeline joint 3, the second flange plate 2 is connected with a second pipeline joint 4, bolt positioning holes 5 are respectively arranged on the first flange plate 1 and the second flange plate 2, a plurality of positioning grooves 7 distributed in an annular shape are arranged on one side surface of the first flange plate 1 close to the second flange plate 2, a plurality of auxiliary positioning bulges 6 distributed in an annular shape are arranged on one side surface of the second flange plate 2 close to the first flange plate 1, a first annular sealing groove 10 is arranged on the outer wall of the first flange plate 1, a positioning groove 7 is arranged on one side surface of the first flange plate 1 close to the second flange plate 2, a second annular groove 11 with the same size as the first annular sealing groove 10 is arranged on one side surface of the second flange plate 2 close to the first flange plate 1, an annular air bag 12 is fixed at the bottom in the second annular groove 11, a rubber sleeve 13 wraps the outer side of the annular air bag 12, an inflation cavity is formed in the lower surface of the second flange plate 2 and communicated with the second annular groove 11, an inflation tube 14 is fixed in the inflation cavity, one end of the inflation tube 14 is connected with the annular air bag 12, an inflation tube sealing groove 15 communicated with the inflation cavity is formed in the lower surface of the second flange plate 2, and a sealing rubber plug 16 is embedded in the inflation tube sealing groove 15.
When the flange is used, the first flange plate 1 and the second flange plate 2 are butted according to a diagram, the auxiliary positioning bulge 6 and the positioning groove 7 are utilized to carry out quick positioning and facilitate use, then bolts are inserted into the bolt positioning holes 5 to fasten the first flange plate 1 and the second flange plate 2, then the annular air bag 12 is inflated by the inflation tube 14, so that the annular air bag 12 and the rubber sleeve 13 are integrally expanded, please refer to figures 3-4, the expanded annular air bag 12 and the rubber sleeve 13 are fully filled in the first annular sealing groove 10 and the second annular groove 11, thereby realizing the sealing of the joint of the first flange plate 1 and the second flange plate 2, and the fine gap at the joint of the first flange plate 1 and the second flange plate 2 can be fully filled because the air bag is expanded irregularly, the sealing effect is further improved, even if the rubber sleeve 13 is aged and damaged after being used for a long time, the annular air bag 12 can also play a better sealing effect, and the sealing effect is better compared with the sealing effect of a gasket and a rubber ring in the prior art.
Referring to fig. 1, the auxiliary positioning protrusion 6 is integrally formed with the second flange 2 to ensure the structural strength of the auxiliary positioning protrusion 6.
Referring to fig. 1, the outer surface of the auxiliary positioning protrusion 6 is coated with a wear-resistant coating, so as to effectively improve the wear-resistant effect of the auxiliary positioning protrusion 6.
Referring to fig. 1, the end surface of the auxiliary positioning protrusion 6 is in arc transition, and the inner bottom edge of the positioning groove 7 is also in arc transition, so that abrasion caused by hard scratch between the auxiliary positioning protrusion 6 and the positioning groove 7 can be effectively avoided.
Referring to fig. 1, the corrosion-resistant coating 8 is coated on the inner ring walls of the first flange plate 1 and the second flange plate 2, the corrosion-resistant rubber 9 is bonded on the outer side of the corrosion-resistant coating 8, and the corrosion-resistant performance of the flange can be effectively improved by using the corrosion-resistant coating 8 and the corrosion-resistant rubber 9.
Referring to fig. 1, the rubber sleeve 13 is a water-swelling rubber sleeve, which swells when it meets water, so as to further improve the sealing effect.
The above; is only a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; according to the technical scheme of the utility model and the improvement conception, equivalent substitution or change is carried out; are all covered by the protection scope of the utility model.
Claims (6)
1. The utility model provides a corrosion resistance is flange for oil equipment, includes first ring flange (1) and second ring flange (2), first ring flange (1) is connected with first pipe joint (3), second ring flange (2) are connected with second pipe joint (4), bolt locating hole (5), its characterized in that have all been seted up on first ring flange (1) and second ring flange (2): a plurality of positioning grooves (7) distributed in an annular shape are formed in one side surface, close to the second flange plate (2), of the first flange plate (1), a plurality of auxiliary positioning protrusions (6) distributed in an annular shape are arranged on one side surface, close to the first flange plate (1), of the second flange plate (2), a first annular sealing groove (10) is formed in the outer wall of the first flange plate (1), a positioning groove (7) is formed in one side surface, close to the second flange plate (2), of the first flange plate (1), a second annular groove (11) with the same size as the first annular sealing groove (10) is formed in one side surface, close to the first flange plate (1), of the second flange plate (2), an annular air bag (12) is fixed to the bottom in the second annular groove (11), a rubber sleeve (13) wraps the outer side of the annular air bag (12), and an inflation cavity is formed in the lower surface of the second flange plate (2), and the inflation cavity is communicated with the second annular groove (11), the inflation cavity is internally fixed with an inflation tube (14), one end of the inflation tube (14) is connected with the annular airbag (12), an inflation tube sealing groove (15) communicated with the inflation cavity is formed in the lower surface of the second flange plate (2), and a sealing rubber plug (16) is embedded in the inflation tube sealing groove (15).
2. A corrosion resistant petroleum equipment flange according to claim 1 wherein: the auxiliary positioning bulge (6) and the second flange plate (2) are integrally formed.
3. A corrosion resistant petroleum equipment flange according to claim 1 wherein: and the outer surface of the auxiliary positioning bulge (6) is coated with a wear-resistant coating.
4. A corrosion resistant petroleum equipment flange according to claim 1 wherein: the end face of the auxiliary positioning protrusion (6) adopts circular arc transition, and the inner bottom edge of the positioning groove (7) also adopts circular arc transition.
5. A corrosion resistant petroleum equipment flange according to claim 1 wherein: the corrosion-resistant rubber ring is characterized in that corrosion-resistant coatings (8) are coated on the inner ring walls of the first flange plate (1) and the second flange plate (2), and corrosion-resistant rubber (9) is bonded on the outer sides of the corrosion-resistant coatings (8).
6. A corrosion resistant petroleum equipment flange according to claim 1 wherein: the rubber sleeve (13) is a water-swelling rubber sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022758002.0U CN213629347U (en) | 2020-11-25 | 2020-11-25 | Corrosion-resistant flange for petroleum equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022758002.0U CN213629347U (en) | 2020-11-25 | 2020-11-25 | Corrosion-resistant flange for petroleum equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213629347U true CN213629347U (en) | 2021-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022758002.0U Active CN213629347U (en) | 2020-11-25 | 2020-11-25 | Corrosion-resistant flange for petroleum equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213629347U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113624416A (en) * | 2021-09-13 | 2021-11-09 | 中国航发沈阳黎明航空发动机有限责任公司 | Test device and method for sealing performance test |
| CN114198646A (en) * | 2021-12-22 | 2022-03-18 | 南京铖联激光科技有限公司 | 3D prints protection gas device with gas transmission pipeline from taking leak protection structure |
| CN115325297A (en) * | 2022-08-22 | 2022-11-11 | 通州建总集团有限公司 | Subway station easily ann tears structure of undamaged tuber pipe open |
| 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 |
-
2020
- 2020-11-25 CN CN202022758002.0U patent/CN213629347U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113624416A (en) * | 2021-09-13 | 2021-11-09 | 中国航发沈阳黎明航空发动机有限责任公司 | Test device and method for sealing performance test |
| CN114198646A (en) * | 2021-12-22 | 2022-03-18 | 南京铖联激光科技有限公司 | 3D prints protection gas device with gas transmission pipeline from taking leak protection structure |
| CN115325297A (en) * | 2022-08-22 | 2022-11-11 | 通州建总集团有限公司 | Subway station easily ann tears structure of undamaged tuber pipe open |
| CN115325297B (en) * | 2022-08-22 | 2023-10-20 | 通州建总集团有限公司 | Easy-to-install and-detach unbroken air pipe structure of subway station |
| 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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: YANCHENG HENGTONG PETROLEUM MACHINERY MANUFACTURING CO.,LTD. Assignor: YANCHENG JIAXIN PETROLEUM MACHINERY MANUFACTURE CO.,LTD. Contract record no.: X2023320000229 Denomination of utility model: A corrosion-resistant flange for petroleum equipment Granted publication date: 20210706 License type: Common License Record date: 20231115 |
|
| EE01 | Entry into force of recordation of patent licensing contract |