CN212776079U - Steam rotary joint sealing device - Google Patents
Steam rotary joint sealing device Download PDFInfo
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- CN212776079U CN212776079U CN202021411289.3U CN202021411289U CN212776079U CN 212776079 U CN212776079 U CN 212776079U CN 202021411289 U CN202021411289 U CN 202021411289U CN 212776079 U CN212776079 U CN 212776079U
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- return pipeline
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Abstract
The utility model relates to a steam rotary joint sealing device, one end of a steam return pipeline passes through a rotary joint front body and is matched with and inserted into a sealing sleeve, one end of the sealing sleeve is inserted into a rotary joint rear body, the other end of the sealing sleeve is connected with the steam return pipeline, the steam return pipeline and the sealing sleeve coincide, the inner side wall of the steam return pipeline is provided with a plurality of grooves, the inner side wall of the sealing sleeve is provided with a plurality of sealing rings, the grooves correspond to the sealing rings in position, and the sealing rings are clamped into the grooves; the outer side of the steam return pipeline is sleeved with a pair of flanges which are respectively a movable flange and a frame flange, the movable flange is close to a rotary joint precursor, the outer side of the steam return pipeline between the two flanges is sleeved with a conical locking sleeve, the conical locking sleeve is of a conical tubular structure, two ends of the conical locking sleeve are open, and the small-diameter end of the conical locking sleeve penetrates through the movable flange and is close to the rotary joint precursor. The problem of current rotary joint admission passageway sealing means leakproofness not good, operating duration is long leads to the flange to take place the abnormal sound and rotary joint and the sleeve pipe dismantles the difficulty is solved.
Description
Technical Field
The utility model belongs to the technical field of the steam seal, concretely relates to steam rotary joint sealing device.
Background
The information in this background section is only for enhancement of understanding of the general background of the invention and is not necessarily to be construed as an admission or any form of suggestion that this information forms the prior art that is already known to a person of ordinary skill in the art.
In the tobacco industry roller cut tobacco drying process, steam needs to be introduced into a rotating roller, so that a rotary joint is needed. The steam seal of the rotary joint is a dynamic seal, and the inventor finds that the steam inlet channel of the existing rotary joint adopts a seal mode of a fixed flange and a graphite cushion, and the steam return channel adopts a seal mode of a sleeve pipe with threads and a graphite cushion. This kind of admission passageway flange joint is the welding, belongs to the hard joint, produces stress easily after the long-time rotation operation of cylinder, and stress not only easily leads to the abnormal sound, very easily causes graphite pad department to reveal moreover. This kind of return steam passageway and cut-tobacco drier are connected for cuting straightly, and through threaded bushing with rotary joint, belong to the screw thread and link, dismantle and have certain difficulty.
SUMMERY OF THE UTILITY MODEL
To solve the above problems in the prior art, it is an object of the present invention to provide a steam rotary joint sealing device.
In order to solve the technical problem, the technical scheme of the utility model is that:
a steam rotary joint sealing device comprises a steam return pipeline, a sealing sleeve, a movable flange, a locking sleeve, a frame flange, a rotary joint front body and a rotary joint rear body;
one end of the steam return pipeline penetrates through the rotary joint front body and is inserted into the sealing sleeve in a matching manner, one end of the sealing sleeve is inserted into the rotary joint rear body, the other end of the sealing sleeve is connected with the steam return pipeline, the steam return pipeline and the sealing sleeve are overlapped, the inner side wall of the steam return pipeline is provided with a plurality of grooves, the inner side wall of the sealing sleeve is provided with a plurality of sealing rings, the grooves correspond to the sealing rings in position, and the sealing rings are clamped into the grooves;
the outer side of the steam return pipeline is sleeved with a pair of flanges which are respectively a movable flange and a frame flange, the movable flange is close to a rotary joint precursor, the outer side of the steam return pipeline between the two flanges is sleeved with a conical locking sleeve, the conical locking sleeve is of a conical tubular structure, two ends of the conical locking sleeve are open, and the small-diameter end of the conical locking sleeve penetrates through the movable flange and is close to the rotary joint precursor.
Foretell sealing device for rotary joint's return steam pipe's is sealed, at first, and seal sleeve is connected with the one end of return steam pipe, and the sealing washer is corresponding with the recess, and the sealing washer has better expend with heat and contract with cold function, can expand when the temperature is higher, forms sealedly with the laminating of the terminal three recess of return steam pipe. The sealing ring shrinks after the temperature is reduced, and the disassembly and the assembly are convenient.
And secondly, a tapered locking sleeve is arranged between a movable flange on the steam return pipeline and a frame flange, the tapered locking sleeve can increase the sealing between the flanges and improve the sealing between the rotary joint pipeline and the roller pipeline, and one end of the tapered locking sleeve is close to the rotary joint precursor, so that the tapered locking sleeve has the function of sealing one end of the rotary joint precursor.
The rotary joint front body and the rotary joint rear body are used for connecting the rotary joint front body with an external steam inlet pipeline through a flange, and the rotary joint rear body is connected with an external steam return pipeline through the flange.
As a further technical scheme, one end of the steam return pipeline, which extends out of the frame flange, is connected with the frame steam return pipeline, and one end of the steam return pipeline extends into the frame steam return pipeline.
As a further technical scheme, the material of the conical locking sleeve is stainless steel.
The diameter size of the minor diameter end of the lock sleeve is different according to different sizes of the rotary joint specification, the size of the lock sleeve is determined by the sizes of the steam return pipeline and the detachable flange, the diameter size of the major diameter end is different according to different sizes of the rotary joint specification, and the size of the lock sleeve is determined by the sizes of the steam return pipeline and the detachable flange.
As a further technical scheme, a graphite gasket is arranged between the conical locking sleeve and the frame flange. The sealing performance between the locking sleeve and the frame flange is further improved.
As a further technical scheme, the number of the sealing rings arranged on the inner side wall of the sealing sleeve is 2-4, and the number of the grooves is the same as that of the sealing rings.
As a further technical scheme, the frame flange and the movable flange are detachable flanges, corresponding bolt holes are respectively formed in the two flanges, and the frame flange and the movable flange are fixedly connected through the bolt holes.
Detachable flange convenient to detach and installation, two flanges are through the bolt hole connection that corresponds, and locking can improve the leakproofness between two flanges.
The utility model has the advantages that:
1. the utility model discloses the sealed toper lock sleeve and movable flange that adopt of admission can avoid the uneven abnormal sound that causes of stress of the fixed flange joint of rotary joint, phenomenon such as return steam pipeline bending deformation, make sealed more stable, reliable.
2. The utility model discloses the sealed seal sleeve that adopts of vapor return, sealed effect is reliable, the convenient dismantlement installation.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the disclosure and together with the description serve to explain the invention and not to limit the invention unduly.
FIG. 1 is a schematic view of a steam rotary joint sealing device;
FIG. 2 is a schematic view of an inlet seal structure;
FIG. 3 is a schematic view of a steam return seal arrangement;
the steam turbine comprises a sealing pipe sleeve 1, a steam return pipeline 2, a movable flange 3, a conical locking sleeve 4, a rack flange 5, a groove 6, a sealing ring 7, a rack steam return pipeline 8, a rotary joint precursor 9 and a rotary joint afterbody 10.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
Just as in the background art, the utility model provides an adopt mounting flange to add the sealed mode of graphite pad in the current rotary joint admission passageway, the leakproofness is not good, and the long problem that leads to the flange to take place the abnormal sound of operating duration. The problem of rotary joint and sleeve pipe threaded connection, dismantle the difficulty is solved.
The steam rotary joint sealing device comprises a steam return pipeline 2, a sealing sleeve 1, a movable flange 3, a conical locking sleeve 4, a frame flange 5, a rotary joint front body 9 and a rotary joint rear body 10;
one end of the steam return pipeline 2 penetrates through the rotary joint front body 9 and is matched with and inserted into the sealing sleeve 1, one end of the sealing sleeve 1 is inserted into the rotary joint rear body 10, the other end of the sealing sleeve 1 is connected with the steam return pipeline 2, the steam return pipeline 2 and the sealing sleeve 1 coincide with each other, the inner side wall of the steam return pipeline 2 is provided with a plurality of grooves 6, the inner side wall of the sealing sleeve 1 is provided with a plurality of sealing rings 7, the positions of the grooves 6 and the sealing rings 7 are corresponding, and the sealing rings 7 are clamped into the.
As shown in fig. 3, a shaft seal is disposed at the end of the sealing sleeve 1 connected to the steam return pipe 2, so as to improve the sealing performance between the sealing sleeve 1 and the steam return pipe 2. As can be seen from fig. 3, the number of the seal rings 7 is 3, and the number of the grooves 6 is 3. Sealing washer 7 sets up at sealing sleeve 1's inside wall, and recess 6 sets up the inside wall at return steam pipe 2, and after return steam pipe 2 inserted sealing sleeve 1, recess 6 and sealing washer 7 cooperate the block.
The sealing ring is prepared by mixing a red copper gasket, an alloy steel ring, a fluorosilicone rubber ring and a graphite sealing gasket. Has better thermal expansion and cold shrinkage performances.
The sealing ring has better expansion with heat and contraction with cold function, can expand when the temperature is higher, and forms a seal with the three grooves 6 at the tail end of the steam return pipeline 2. After the temperature is reduced, the sealing ring 7 shrinks, and the disassembly and the assembly are convenient.
As shown in fig. 2, a tapered locking sleeve 4 is used for sealing, a pair of flanges, namely a movable flange 3 and a frame flange 5, are sleeved outside a steam return pipeline 2, the movable flange 3 is close to a rotary joint precursor 9, the tapered locking sleeve 4 is sleeved outside the steam return pipeline 2 between the two flanges, the tapered locking sleeve 4 is in a tapered tubular structure, two ends of the tapered locking sleeve 4 are open, and the small-diameter end of the tapered locking sleeve 4 penetrates through the movable flange 3 and is close to the rotary joint precursor 9. Can improve the leakproofness, movable flange 3 and frame flange 5 are detachable flanges, have reduced the long-time problem that produces the abnormal sound of rotating of cylinder. The connection mode between the sealing sleeve 1 and the steam return pipeline 2 is convenient to disassemble and reliable in sealing, and the problem of difficult rotation of threaded connection is avoided.
The material of the conical locking sleeve 4 is stainless steel.
The diameter size of the minor diameter end of the tapered locking sleeve 4 is different according to different specifications of the rotary joint, the size of the locking sleeve is determined by the sizes of the steam return pipeline and the detachable flange, the diameter size of the major diameter end is different according to different specifications of the rotary joint, and the size of the locking sleeve is determined by the sizes of the steam return pipeline and the detachable flange.
A graphite gasket is arranged between the conical locking sleeve 4 and the frame flange 5. The sealing performance between the tapered locking sleeve 4 and the frame flange 5 is further improved.
As shown in fig. 1, the assembly method of the steam rotary joint sealing device of the present invention comprises:
firstly, one end of a steam return pipeline 2 is placed into a frame steam return pipeline 8, a conical locking sleeve 4, a movable flange 3 and a frame flange 5 are sleeved into the steam return pipeline 2, a rotary joint precursor 9 is sleeved into the steam return pipeline 2, the conical locking sleeve 4 is embedded outside the adapter precursor 9, a graphite gasket is arranged between the movable flange 3 and the frame flange 5, and the movable flange 3 and the frame flange 5 are fastened by bolts. One end of the sealing sleeve 1 is embedded into the rotary joint rear body 10, the other end of the sealing sleeve is sleeved in the steam return pipeline 2, the expansion sealing ring 7 is attached to the sealing groove 6, and the fastening bolt of the rotary joint front body 9 and the rotary joint 10 is fastened. When steam is introduced into the rotary joint, the expansion sealing ring 7 expands by heat and forms a seal with the groove 6.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. 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. A steam rotary joint sealing device is characterized in that: comprises a steam return pipeline, a sealing sleeve, a movable flange, a locking sleeve, a frame flange, a rotary joint front body and a rotary joint rear body;
one end of the steam return pipeline penetrates through the rotary joint front body and is inserted into the sealing sleeve in a matching manner, one end of the sealing sleeve is inserted into the rotary joint rear body, the other end of the sealing sleeve is connected with the steam return pipeline, the steam return pipeline and the sealing sleeve are overlapped, the inner side wall of the steam return pipeline is provided with a plurality of grooves, the inner side wall of the sealing sleeve is provided with a plurality of sealing rings, the grooves correspond to the sealing rings in position, and the sealing rings are clamped into the grooves;
the outer side of the steam return pipeline is sleeved with a pair of flanges which are respectively a movable flange and a frame flange, the movable flange is close to a rotary joint precursor, the outer side of the steam return pipeline between the two flanges is sleeved with a conical locking sleeve, the conical locking sleeve is of a conical tubular structure, two ends of the conical locking sleeve are open, and the small-diameter end of the conical locking sleeve penetrates through the movable flange and is close to the rotary joint precursor.
2. The steam swivel seal arrangement of claim 1, wherein: one end of the steam return pipeline, which extends out of the frame flange, is connected with the frame steam return pipeline, and one end of the steam return pipeline extends into the frame steam return pipeline.
3. The steam swivel seal arrangement of claim 1, wherein: the material of toper lock sleeve is stainless steel.
4. The steam swivel seal arrangement of claim 1, wherein: a graphite gasket is arranged between the conical locking sleeve and the frame flange.
5. The steam swivel seal arrangement of claim 1, wherein: the number of the sealing rings arranged on the inner side wall of the sealing sleeve is 2-4, and the number of the grooves is the same as that of the sealing rings.
6. The steam swivel seal arrangement of claim 1, wherein: the movable flange is detachable flange, sets up corresponding bolt hole respectively with the frame flange, and frame flange and movable flange pass through bolt hole fixed connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021411289.3U CN212776079U (en) | 2020-07-16 | 2020-07-16 | Steam rotary joint sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021411289.3U CN212776079U (en) | 2020-07-16 | 2020-07-16 | Steam rotary joint sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212776079U true CN212776079U (en) | 2021-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021411289.3U Active CN212776079U (en) | 2020-07-16 | 2020-07-16 | Steam rotary joint sealing device |
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| CN (1) | CN212776079U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113431969A (en) * | 2021-07-02 | 2021-09-24 | 江苏汉皇安装集团有限公司 | Pipeline, installation auxiliary device and process |
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2020
- 2020-07-16 CN CN202021411289.3U patent/CN212776079U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113431969A (en) * | 2021-07-02 | 2021-09-24 | 江苏汉皇安装集团有限公司 | Pipeline, installation auxiliary device and process |
| CN113431969B (en) * | 2021-07-02 | 2022-08-26 | 江苏汉皇安装集团有限公司 | Pipeline, installation auxiliary device and process |
| CN115013614A (en) * | 2021-07-02 | 2022-09-06 | 江苏汉皇安装集团有限公司 | Pipeline construction process and pipeline |
| CN115013614B (en) * | 2021-07-02 | 2024-01-30 | 江苏汉皇安装集团有限公司 | Construction process of pipeline and pipeline |
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