CN214305753U - Secondary sealing device of common flange - Google Patents
Secondary sealing device of common flange Download PDFInfo
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- CN214305753U CN214305753U CN202022671722.3U CN202022671722U CN214305753U CN 214305753 U CN214305753 U CN 214305753U CN 202022671722 U CN202022671722 U CN 202022671722U CN 214305753 U CN214305753 U CN 214305753U
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Abstract
The utility model relates to a secondary seal device of ordinary flange belongs to the secondary seal field of ordinary flange, and the junction of two pipelines is provided with two the same flanges, is provided with primary seal pad and second grade sealing device between two flanges, and two flanges pass through locking device locking, second grade sealing device includes: second grade sealing mechanism, the sealed secondary seal chamber that glues that forms between pad and the second grade sealing mechanism of one-level, be provided with the sealed pad of one-level between two flanges, be provided with second grade sealing mechanism between two flanges, the utility model provides a secondary seal device of ordinary flange has very strong sealed effect, has formed the secondary seal chamber between sealing ring and the sealed pad, in case the flange appears leaking, has practiced thrift the time of surveying and doing anchor clamps, can open the injection valve very first time and pour into sealed gluey realization sealed, can seal fast and restore the leakage, reduced and maintained the maintenance frequency, saved manpower and materials.
Description
Technical Field
The utility model relates to a secondary seal field of ordinary flange especially relates to a secondary seal device of ordinary flange.
Background
Flanges are parts for interconnecting pipes and are used for connecting pipe ends or equipment inlets and outlets. During the annual operation of pipelines and equipment, gaskets between flanges are corroded and worn, and leakage is easy to occur. After the traditional flange leaks, online maintenance can be realized by using a method of blocking leakage under pressure. The pressure leakage blocking is to firstly carry out site survey, then design and process a flange clamp with a sealing agent injection hole according to survey data, and then inject a sealing agent into a flange clamp arranged outside a leaking flange to realize the sealing of the leaking flange. The traditional method has the problems of high maintenance frequency, high expenditure of manpower and material resources, prolonged leakage time and the like.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model relates to a secondary seal device of ordinary flange.
A secondary sealing device for a common flange, comprising: flange, the sealed pad of one-level, second grade sealing device, locking device and pipeline, its characterized in that, the junction of two pipelines is provided with two the same flanges, is provided with the sealed pad of one-level and second grade sealing device between two flanges, and two flanges pass through locking device locking, second grade sealing device includes: the secondary sealing glue injection cavity is formed among the secondary sealing mechanism, the primary sealing gasket and the secondary sealing mechanism, the primary sealing gasket is arranged between the two flanges, and the secondary sealing mechanism is arranged between the two flanges.
Furthermore, the flange is respectively provided with through holes in an annular array, the flange is provided with sealing ring grooves, the flange is provided with injection valve screw holes, a secondary sealing mechanism is arranged between the two sealing ring grooves and is matched and sealed with the two sealing ring grooves, and the injection valve screw holes are communicated with the secondary sealing glue injection cavity.
Further, the second-stage sealing mechanism is a sealing ring, and a sealing ring is arranged between the two sealing ring grooves.
Furthermore, the secondary sealing mechanism is a labyrinth type cross sealing ring, a labyrinth type cross sealing ring is arranged between the two sealing ring grooves respectively, and the inner sides of the two labyrinth type cross sealing rings are sealed in a cross fit mode.
Further, the secondary sealing mechanism includes: the inner side of one flange is provided with the elastic sealing gasket, the inner side of the other flange is provided with the annular plate, and the annular plate is in tight contact with the elastic sealing gasket.
Further, the locking device includes: the double-end bolt and the nut are arranged in the through holes on the two flanges, and the two flanges are fastened and connected through the double-end bolt and the nut.
The utility model has the advantages that:
the utility model provides a secondary seal device of ordinary flange has very strong sealed effect, has formed the secondary seal chamber between sealing ring and the sealed pad, in case the flange appears leaking, has practiced thrift survey and has done the time of anchor clamps, can open the injection valve very first time and pour into sealed gluey realization sealed, can seal fast and repair the leakage, has reduced and has maintained the maintenance frequency, has saved manpower and materials.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a partially enlarged schematic view of the structure of the present invention;
fig. 3 is a schematic view of a first embodiment of the present invention;
fig. 4 is a schematic view of a second embodiment of the present invention;
fig. 5 is a schematic view of a third embodiment of the present invention;
wherein:
1. a flange; 2. A primary seal gasket; 3. A secondary sealing device;
4. a locking device; 5. A pipeline; 11. A through hole;
12. sealing the ring groove; 13. An injection valve screw hole; 31. A secondary sealing mechanism;
32. sealing the glue injection cavity for the second time; 41. A stud bolt; 42. A nut;
311. a seal ring; 312. Labyrinth cross seal rings; 313. An elastic sealing gasket;
314. and (4) a ring plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that the installation manners and technical terms mentioned in the present invention are technical terms that have been clearly known in the technical field, and thus, the explanation thereof is not repeated. Moreover, the same reference numerals are used for the same components, which do not affect and should not constitute an exact understanding of the technical solutions for a person skilled in the art.
The first embodiment is as follows:
the utility model relates to a secondary seal device of ordinary flange, include: flange 1, the sealed pad 2 of one-level, second grade sealing device 3, locking device 4 and pipeline 5, the junction of two pipelines 5 is provided with two the same flanges 1, is provided with the sealed pad 2 of one-level and second grade sealing device 3 between two flanges 1, and two flanges 1 are locked through locking device 4, second grade sealing device 3 includes: second grade sealing mechanism 31, the secondary seal glue injection chamber 32 that forms between one-level sealed pad 2 and the second grade sealing mechanism 31, be provided with one-level sealed pad 2 between two flanges 1, be provided with second grade sealing mechanism 31 between two flanges 1, it is high to have solved maintenance frequency so set up, manpower and materials expenditure is big, the extension scheduling problem of leak time, thereby compress tightly two flanges 1 through locking device 4 and compress tightly one-level sealed pad 2 and reach sealed effect, secondary seal's effect has been reached through second grade sealing device 3.
The through-hole 11 that has the annular array is opened respectively on the flange 1, it has sealed annular 12 to open on the flange 1, be provided with injection valve screw 13 on the flange 1, be provided with second grade sealing mechanism 31 between two sealed annular 12 and cooperate sealed with it, injection valve screw 13 and secondary seal injection chamber 32 intercommunication, the problem of maintenance in time when secondary seal appears leaking has been solved in this setting, when secondary seal appears leaking, thereby in the secondary seal injection chamber 32 has reached the effect of in time shutoff through injection valve screw 13 with the injection of sealing glue.
Second grade sealing mechanism 31 is sealing ring 311, is provided with sealing ring 311 between two sealed annular 12, so sets up the not high problem of having solved sealing strength, has reached the sealed effect of high strength through sealed annular 12 and the sealing ring 311 cooperation is sealed.
The locking device 4 comprises: stud 41 and nut 42 are arranged in the through hole 11 on the two flanges 1, and the two flanges 1 are fastened and connected through the stud 41 and the nut 42, so that the problems that the flange connection is unstable and the sealing effect is not ideal are solved, and the stud 41 and the nut 42 are used for connecting and fixing the two flanges 1, so that the effect of stably connecting the flanges 1 is achieved.
Example two:
the utility model relates to a secondary seal device of ordinary flange, include: flange 1, the sealed pad 2 of one-level, second grade sealing device 3, locking device 4 and pipeline 5, its characterized in that, the junction of two pipelines 5 is provided with two the same flanges 1, is provided with the sealed pad 2 of one-level and second grade sealing device 3 between two flanges 1, and two flanges 1 are locked through locking device 4, second grade sealing device 3 includes: second grade sealing mechanism 31, the secondary seal glue injection chamber 32 that forms between one-level sealed pad 2 and the second grade sealing mechanism 31, be provided with one-level sealed pad 2 between two flanges 1, be provided with second grade sealing mechanism 31 between two flanges 1, it is high to have solved maintenance frequency so set up, manpower and materials expenditure is big, the extension scheduling problem of leak time, thereby compress tightly two flanges 1 through locking device 4 and compress tightly one-level sealed pad 2 and reach sealed effect, secondary seal's effect has been reached through second grade sealing device 3.
The through-hole 11 that has the annular array is opened respectively on the flange 1, it has sealed annular 12 to open on the flange 1, be provided with injection valve screw 13 on the flange 1, be provided with second grade sealing mechanism 31 between two sealed annular 12 and cooperate sealed with it, injection valve screw 13 and secondary seal injection chamber 32 intercommunication, the problem of maintenance in time when secondary seal appears leaking has been solved in this setting, when secondary seal appears leaking, thereby in the secondary seal injection chamber 32 has reached the effect of in time shutoff through injection valve screw 13 with the injection of sealing glue.
Second grade sealing mechanism 31 is labyrinth cross sealing ring 312, is provided with labyrinth cross sealing ring 312 between two seal ring grooves 12 respectively, and the inboard cross fit of two labyrinth cross sealing ring 312 is sealed, so sets up the not high problem of seal strength, has reached high strength's sealed effect through seal ring groove 12 and the sealed cooperation of labyrinth cross sealing ring 312 and the inboard cross fit of two labyrinth cross sealing ring 312.
The locking device 4 comprises: stud 41 and nut 42 are arranged in the through hole 11 on the two flanges 1, and the two flanges 1 are fastened and connected through the stud 41 and the nut 42, so that the problems that the flange connection is unstable and the sealing effect is not ideal are solved, and the stud 41 and the nut 42 are used for connecting and fixing the two flanges 1, so that the effect of stably connecting the flanges 1 is achieved.
Example three:
the utility model relates to a secondary seal device of ordinary flange, include: flange 1, the sealed pad 2 of one-level, second grade sealing device 3, locking device 4 and pipeline 5, its characterized in that, the junction of two pipelines 5 is provided with two the same flanges 1, is provided with the sealed pad 2 of one-level and second grade sealing device 3 between two flanges 1, and two flanges 1 are locked through locking device 4, second grade sealing device 3 includes: second grade sealing mechanism 31, the secondary seal glue injection chamber 32 that forms between one-level sealed pad 2 and the second grade sealing mechanism 31, be provided with one-level sealed pad 2 between two flanges 1, be provided with second grade sealing mechanism 31 between two flanges 1, it is high to have solved maintenance frequency so set up, manpower and materials expenditure is big, the extension scheduling problem of leak time, thereby compress tightly two flanges 1 through locking device 4 and compress tightly one-level sealed pad 2 and reach sealed effect, secondary seal's effect has been reached through second grade sealing device 3.
The through-hole 11 that has the annular array is opened respectively on the flange 1, it has sealed annular 12 to open on the flange 1, be provided with injection valve screw 13 on the flange 1, be provided with second grade sealing mechanism 31 between two sealed annular 12 and cooperate sealed with it, injection valve screw 13 and secondary seal injection chamber 32 intercommunication, the problem of maintenance in time when secondary seal appears leaking has been solved in this setting, when secondary seal appears leaking, thereby in the secondary seal injection chamber 32 has reached the effect of in time shutoff through injection valve screw 13 with the injection of sealing glue.
The secondary seal mechanism 31 includes: the inner side of one flange 1 is provided with the elastic sealing gasket 313, the inner side of the other flange 1 is provided with the annular plate 314, and the annular plate 314 is in tight contact with the elastic sealing gasket 313, so that the problem of low sealing strength is solved, and the high-strength sealing effect is achieved through the tight contact between the annular plate 314 and the elastic sealing gasket 313.
The locking device 4 comprises: stud 41 and nut 42 are arranged in the through hole 11 on the two flanges 1, and the two flanges 1 are fastened and connected through the stud 41 and the nut 42, so that the problems that the flange connection is unstable and the sealing effect is not ideal are solved, and the stud 41 and the nut 42 are used for connecting and fixing the two flanges 1, so that the effect of stably connecting the flanges 1 is achieved.
The working process is as follows:
the flange 1 is sleeved at a required connecting position, the primary sealing gasket 2 is placed between the two flanges 1, the secondary sealing mechanism 31 is arranged in the sealing ring groove 12, in a normal state, the injection valve screw hole 13 is tightly sealed through a screw, when the primary sealing gasket 2 is damaged and the medium in the pipeline 5 leaks, the secondary sealing mechanism 31 plays a role in sealing to prevent the medium in the pipeline 5 from continuously leaking, when the secondary sealing mechanism 31 fails and also causes the medium in the pipeline 5 to leak, the screw on the injection valve screw hole 13 is detached, the sealing glue is injected into the secondary sealing glue injection cavity 32, and the screw is screwed to prevent the medium from leaking.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
The above, only do the preferred embodiment of the present invention, not used to limit the present invention, all the technical matters of the present invention should be included in the protection scope of the present invention for any slight modification, equivalent replacement and improvement of the above embodiments.
Claims (6)
1. A secondary sealing device for a common flange, comprising: flange (1), the sealed pad of one-level (2), second grade sealing device (3), locking device (4) and pipeline (5), its characterized in that, two the junction of pipeline (5) is provided with two the same flanges (1), is provided with the sealed pad of one-level (2) and second grade sealing device (3) between two flanges (1), and two flanges (1) are locked through locking device (4), second grade sealing device (3) include: a secondary sealing glue injection cavity (32) formed between the secondary sealing mechanism (31), the primary sealing gasket (2) and the secondary sealing mechanism (31), the primary sealing gasket (2) is arranged between the two flanges (1), and the secondary sealing mechanism (31) is arranged between the two flanges (1).
2. The secondary sealing device of a common flange according to claim 1, wherein the flange (1) is provided with through holes (11) in an annular array, the flange (1) is provided with sealing ring grooves (12), the flange (1) is provided with injection valve screw holes (13), a secondary sealing mechanism (31) is arranged between the two sealing ring grooves (12) and is matched and sealed with the two sealing ring grooves, and the injection valve screw holes (13) are communicated with the secondary sealing glue injection cavity (32).
3. A secondary sealing device of a common flange according to claim 1, characterized in that the secondary sealing mechanism (31) is a sealing ring (311), and the sealing ring (311) is arranged between the two sealing ring grooves (12).
4. A secondary sealing device of a common flange according to claim 1, characterized in that the secondary sealing mechanism (31) is a labyrinth cross sealing ring (312), a labyrinth cross sealing ring (312) is respectively arranged between the two sealing ring grooves (12), and the inner sides of the two labyrinth cross sealing rings (312) are in cross fit sealing.
5. A secondary sealing device of a normal flange according to claim 1, characterized in that said secondary sealing means (31) comprises: the elastic sealing gasket (313) and the annular plate (314), wherein the elastic sealing gasket (313) is arranged on the inner side of one flange (1), the annular plate (314) is arranged on the inner side of the other flange (1), and the annular plate (314) is tightly contacted with the elastic sealing gasket (313).
6. A secondary sealing device of a generic flange according to claim 2, characterized in that said locking device (4) comprises: the double-headed bolt fastening structure comprises double-headed bolts (41) and nuts (42), the double-headed bolts (41) are arranged in through holes (11) in two flanges (1), and the two flanges (1) are fastened and connected through the double-headed bolts (41) and the nuts (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022671722.3U CN214305753U (en) | 2020-11-18 | 2020-11-18 | Secondary sealing device of common flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022671722.3U CN214305753U (en) | 2020-11-18 | 2020-11-18 | Secondary sealing device of common flange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214305753U true CN214305753U (en) | 2021-09-28 |
Family
ID=77842327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022671722.3U Active CN214305753U (en) | 2020-11-18 | 2020-11-18 | Secondary sealing device of common flange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214305753U (en) |
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2020
- 2020-11-18 CN CN202022671722.3U patent/CN214305753U/en active Active
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