CN210978533U - Automatic pressing type rotary sealing structure - Google Patents
Automatic pressing type rotary sealing structure Download PDFInfo
- Publication number
- CN210978533U CN210978533U CN201922016410.6U CN201922016410U CN210978533U CN 210978533 U CN210978533 U CN 210978533U CN 201922016410 U CN201922016410 U CN 201922016410U CN 210978533 U CN210978533 U CN 210978533U
- Authority
- CN
- China
- Prior art keywords
- gland
- sealing ring
- box
- movable sealing
- movable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model provides an automatic pressing type rotary sealing structure, which comprises a material box; the movable sealing ring is partially penetrated into the inner side or the outer side of the feed box, and a gap is formed between the movable sealing ring and the feed box; the sealing stuffing box can be sleeved on the movable sealing ring in an automatic pressing manner and is in sealing connection with the material box through flexible connection. The utility model provides an automatic pressing type rotary sealing structure, which keeps the movable sealing ring and the feed box in an empty state by arranging a gap between the movable sealing ring and the feed box, and a sealing packing box can be automatically sleeved on the inner side or the outer side of the movable sealing ring in a pressing manner; when the movable sealing ring jumps, the movable sealing ring and the material box are prevented from contacting and rubbing to damage equipment, and the sealing filler box can jump along with the jumping, so that the sealing filler is always tightly combined with the circumferential outer surface of the rotating movable sealing ring; the flexible connection limits the movable sealing ring to jump in a certain range, so that gap leakage cannot be generated; and the service life of the rotary furnace can be prolonged, and the long-term safe, stable and efficient operation of the rotary furnace is ensured.
Description
Technical Field
The utility model relates to a rotary seal technical field, concretely relates to automatic pressing mode rotary seal structure.
Background
Rotary kilns are devices that are widely used in operations such as drying, calcining and roasting of materials. When the rotary furnace is used for coal pyrolysis, medium in the furnace is high-temperature coal gas and oil gas, and the medium in the furnace is required to be operated at a micro-pressure in the furnace body, if the sealing effect is poor, gas in the furnace leaks or external gas enters the furnace, the product quality is directly influenced, and potential safety hazards exist in the severe case. Therefore, in order to ensure the normal operation of the rotary furnace, the rotary furnace generally adopts end face sealing between a movable ring and a static ring.
For example, chinese patent document CN203453753U discloses a high-temperature rotary furnace end face sealing structure, which includes a movable sealing ring and a static sealing ring, wherein the movable sealing ring is fixed on a movable ring seat, and the movable ring seat is welded on the end cover of the rotary furnace end; the static sealing ring is fixed on the static ring seat, the static ring seat is sleeved on the air guide pipe, and the static ring seat can transversely move on the air guide pipe through the telescopic corrugated pipe. In addition, the static ring seat is pressed by the cylinder, and the movable sealing ring is always attached to the static sealing ring under the action of the pressure of the cylinder. In the work, the static ring is relatively static, and when the movable ring moves towards the axial direction, the static ring also moves along with the movable ring, so that the tightness of sealing can be ensured.
However, by adopting the scheme, when the furnace body rotates and jumps, the moving sealing ring and the static sealing ring are easy to be dislocated, so that a large gap is generated between the moving sealing ring and the static sealing ring, and the sealing surface is easy to be roughened to form a gap, so that the leakage phenomenon is generated.
SUMMERY OF THE UTILITY MODEL
Therefore, the to-be-solved technical problem of the utility model lies in overcoming the rotary seal among the prior art when being applied to the rotary furnace, because the rotation of rotary furnace is beated, leads to the terminal surface dislocation easily, seals not tight defect to an automatic pressing mode rotary seal structure is provided.
Therefore, the utility model provides a following technical scheme:
an automatic compression type rotary seal structure comprising:
a material box;
the movable sealing ring is partially penetrated into the inner side or the outer side of the feed box, and a gap is formed between the movable sealing ring and the feed box;
the sealing stuffing box can be sleeved on the movable sealing ring in an automatic pressing manner and is in sealing connection with the material box through flexible connection.
Further, the flexible connection is a metal flexible connection.
Further, the stuffing box for packing includes:
the first gland is an annular structure which is sleeved on the movable sealing ring with a gap kept between the first gland and the movable sealing ring;
the second gland is an annular structure which is sleeved on the movable sealing ring with a gap kept between the second gland and the movable sealing ring, and a gap is kept between the second gland and the first gland;
the fixed ring plate is of an annular structure which is sleeved on the movable sealing ring at intervals with the movable sealing ring, is connected between the first gland and the second gland, and can stretch along the axial direction of the movable sealing ring;
and an automatic pressing structure connected with the first gland and/or the second gland and having a biasing force for driving the first gland and/or the second gland to move towards a direction for compressing the interval between the two glands.
Further, the metal flexible connection connects the stuffing box and the feed box through welding or flanges.
Further, the automatic pressing structure includes:
the connecting screw rod sequentially penetrates through the first gland and the second gland, and two ends of the connecting screw rod are connected with locking nuts;
and the compression spring at least penetrates through one end of the connecting screw rod and is positioned between the locking nut and the first gland or the second gland.
Furthermore, on the connecting screw rod, the inner sides of the first gland and the second gland are respectively provided with a second limiting nut.
Furthermore, high-temperature-resistant flexible filler is filled between the fixed ring plate and the movable sealing ring.
Further, an oil filling hole is formed in the first pressing cover and/or the second pressing cover between the fixed ring plate and the movable sealing ring.
Furthermore, the oil filling hole is provided with a non-return structure.
Further, a sealing skin is connected between the first gland and the second gland and positioned on the periphery of the fixed ring plate.
Furthermore, the automatic compression type rotary sealing structure also comprises a limiting rod, one end of the limiting rod is fixedly connected to the feed box, and the other end of the limiting rod penetrates through the sealing stuffing box and is connected with the sealing stuffing box in a clearance manner;
the first limiting nut is connected to the limiting rod and is arranged at an interval with the sealing stuffing box; the first limiting nuts on each limiting rod are at least two and are respectively positioned on two outer sides of the sealing stuffing box.
Furthermore, the packing gland is provided with at least two lug plates arranged at intervals, and the limiting rod sequentially penetrates through the lug plates to be connected with the packing gland.
The utility model discloses technical scheme has following advantage:
1. the utility model provides an automatic pressing mode rotates seal structure, through setting up the clearance between movable sealing ring and workbin, makes movable sealing ring and workbin keep the state of separating from the sky, when movable sealing ring rotates or beats, prevents to move between sealing ring and the workbin direct contact damage equipment; the sealing filler box can be sleeved on the movable sealing ring in an automatic pressing manner, so that when the movable sealing ring rotates or jumps, the sealing filler box and the sealing filler in the sealing filler box can jump together without sliding, and the sealing filler can be tightly combined with the circumferential outer surface of the rotating movable sealing ring all the time; preventing the sealing ring and the sealing stuffing box from generating gap leakage; the flexible connection allows the sealing stuffing box and the movable sealing ring to jump within a certain range through expansion and contraction, and no gap leakage is generated; the end face sealing structure fundamentally solves the problems that when the furnace body rotates and jumps, the moving material box and the material box are easy to dislocate, and then a larger gap is generated between the moving material box and the material box, so that the leakage phenomenon occurs; moreover, the utility model provides an automatic pressing mode rotates seal structure can also prolong the life of rotary furnace, guarantees the high-efficient operation of rotary furnace long period safety and stability.
2. The utility model provides an automatic pressing mode rotates seal structure, through adopting the metal flexible coupling, prevents that the phenomenon that non-metal flexible coupling from appearing leaking after flexible many times, further improves sealed effect.
3. The utility model provides an automatic pressing mode rotates seal structure, can follow through setting up the fixed ring board that the axial direction of movable seal ring stretches out and draws back, make first gland and second gland move in certain axial distance, when the movable seal ring takes place to beat radially, the sealing packing between first gland and the second gland can move along with together, prevent when the movable seal ring takes place to beat radially, the movable seal ring and the sealed packing box appear the crack and leak; through setting up the connection first gland with the automatic compact structure of second gland can compress tightly the sealing filler, and when moving the sealing ring and taking place the runout moreover, automatic compact structure can guarantee the automatic of sealing filler box and moving the sealing ring and compress tightly for the packing in the sealing filler box all the time with move sealing ring in close contact with, prevent to move sealing ring and sealing filler box and appear the crack and leak.
4. The utility model provides an automatic pressing mode rotary seal structure sets up connecting screw through passing first gland and second gland, sets up lock nut at connecting screw's both ends, limits the axial distance between first gland and the second gland, and set up compression spring between lock nut and the first gland, can make first gland and second gland carry out axial motion in certain distance, when the dynamic seal ring is beated, the packing in gland packing box and the gland packing box can follow the dynamic seal ring and move together, guarantee the automatic pressing of gland packing to dynamic seal ring all the time, reach sealed effect; meanwhile, the sliding of the sealing stuffing box relative to the movable sealing ring is reduced; through on connecting screw rod, the inboard that is located first gland and second gland is equipped with second stop nut respectively, through second stop nut can set up the minimum distance that first gland and second gland can be close to each other to avoid being close to each other between two glands too closely apart from.
5. The utility model provides an automatic pressing mode rotary seal structure, through on first gland and/or the second gland in the fixed ring board with move the oil filler point that sets up between the sealing ring has the contrary structure that ends, should only allow to flow to the sealed packing box, prevent to flow outside the sealed packing box, when not influencing sealed effect, make things convenient for the injection of sealed lubricating grease, when improving sealed effect, save the quantity of lubricating grease, practice thrift the cost; and a sealing skin is arranged between the first gland and the second gland on the periphery of the fixed ring plate, so that the sealing effect is further improved.
6. The utility model provides an automatic pressing mode rotates seal structure is in through setting up one end fixed connection on the workbin, the other end passes gland packing case, and with gland packing case keeps the gag lever post that connects gappedly, and sets up first stop nut respectively in two outsides of gland packing case on this gag lever post, restricts gland packing case's axial displacement scope to it is spacing to carry out certain axial to moving the sealing ring through gland packing case, further improves sealed effect and protection metal flexible coupling when rotary furnace takes place the rotation and beats.
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 the structure schematic diagram of the automatic pressing type rotary sealing structure of the present invention.
Fig. 2 is an enlarged view of the area a in fig. 1.
FIG. 3 is a side partial cross-sectional view of a packing box.
Description of reference numerals:
1. a movable sealing ring; 2. a material box; 3. soft connection; 4. a stationary ring plate; 5. a first gland; 6. high temperature resistant flexible filler; 7. connecting a screw rod; 8. an oil filler hole; 9. sealing the skin; 10. a compression spring; 11. a limiting rod; 12. an ear plate; 13. a second gland; 14. locking the nut; 15. a first limit nut.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", 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 term "connected" is to be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; 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.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
As shown in fig. 1 and fig. 3, a specific implementation of the automatic pressing type rotary sealing structure provided for this embodiment includes:
a material box 2;
the movable sealing ring 1 penetrates the inner side of the feed box 2 partially, and a gap is formed between the movable sealing ring 1 and the feed box 2;
the sealing stuffing box can be sleeved on the movable sealing ring 1 in an automatic pressing manner and is in sealing connection with the material box 2 through a flexible connection 3.
As an alternative embodiment, the dynamic sealing ring 1 may also penetrate partially into the outside of the tank 2.
The gap is arranged between the movable sealing ring and the feed box, so that the movable sealing ring and the feed box are kept in an empty state, and when the movable sealing ring rotates or jumps, the movable sealing ring and the feed box are prevented from directly contacting and damaging equipment; the sealing filler box can be sleeved on the movable sealing ring in an automatic pressing manner and is in sealing connection with the material box through flexible connection, when the movable sealing ring rotates or jumps, the sealing filler box and sealing filler in the sealing filler box can jump together without sliding, so that the sealing filler can be tightly combined with the circumferential outer surface of the rotating movable sealing ring all the time; preventing the sealing ring and the sealing stuffing box from generating gap leakage; the flexible connection allows the sealing stuffing box and the movable sealing ring to jump within a certain range through expansion and contraction, and no gap leakage is generated; moreover, the service life of the rotary furnace can be prolonged, and the long-period safe, stable and efficient operation of the rotary furnace is ensured.
Specifically, flexible coupling 3 is metal flexible coupling, through adopting metal flexible coupling, prevents to use nonmetal flexible coupling to appear the phenomenon of leaking after flexible many times, further improves sealed effect.
Specifically, the stuffing box for a packing includes:
the first gland 5 is an annular structure which is sleeved on the movable sealing ring 1 with a gap between the first gland and the movable sealing ring 1;
the second gland 13 is an annular structure which is sleeved on the movable sealing ring 1 with a gap between the second gland 13 and the movable sealing ring 1, and a gap is kept between the second gland 13 and the first gland 5;
the fixed ring plate 4 is an annular structure which is sleeved on the movable sealing ring 1 at intervals with the movable sealing ring 1, the fixed ring plate 4 is connected between the first gland 5 and the second gland 13, and the fixed ring plate 4 can stretch along the axial direction of the movable sealing ring 1;
and an automatic pressing structure connecting the first gland 5 and the second gland 13, having a biasing force for driving the first gland 5 and the second gland 13 to move toward a direction for compressing the interval between the two glands.
The first gland and the second gland move within a certain axial distance by arranging the fixed ring plate which can stretch along the axial direction of the movable sealing ring, and when the movable sealing ring radially jumps, the sealing packing between the first gland and the second gland can jump along with the movable sealing ring but does not slide, so that the movable sealing ring and the sealing packing box are prevented from cracking and leaking when the movable sealing ring radially jumps; through setting up the connection first gland with the automatic compact structure of second gland when realizing compressing tightly the sealing packing, when moving the sealing ring and taking place radial runout, automatic compact structure can guarantee that the packing in the sealing packing box compresses tightly with moving the sealing ring is automatic, and the packing in the sealing packing box all the time with move sealing ring in close contact with, prevent that crack leakage from appearing in moving sealing ring and the sealing packing box.
As an alternative embodiment, one end of the automatic pressing structure is connected to the first pressing cover 5 or the second pressing cover 13, and has a biasing force that drives the first pressing cover 5 or the second pressing cover 13 to move in a direction of compressing the space between the two pressing covers, and the other end of the automatic pressing structure is pressed by the air cylinder.
Specifically, the metal flexible connection connects the stuffing box and the material box 2 through welding or flange connection.
Specifically, as shown in fig. 2, the automatic pressing structure includes:
the connecting screw rod 7 sequentially penetrates through the first gland 5 and the second gland 13, and two ends of the connecting screw rod are connected with locking nuts 14;
and the compression spring 10 penetrates through one end of the connecting screw rod 7 and is positioned between the locking nut 14 and the first gland 5.
The connecting screw rod is arranged through the first gland and the second gland, the locking nuts are arranged at two ends of the connecting screw rod to limit the axial distance between the first gland and the second gland, and the compression spring is arranged between the locking nuts and the first gland, so that the first gland and the second gland can axially move within a certain distance, when the movable sealing ring jumps, the sealing filler box and the filler inward in the sealing filler can jump together with the movable sealing ring without sliding, the automatic compression of the sealing filler on the movable sealing ring is always ensured, and the sealing effect is achieved; meanwhile, the sliding of the sealing stuffing box relative to the movable sealing ring is reduced.
As an alternative embodiment, a compression spring 10 may also be inserted through one end of the connecting screw 7 and located between the lock nut 14 and the second gland 13.
Specifically, on the connecting screw 7, the inner sides of the first gland 5 and the second gland 13 are respectively provided with a second limit nut, and through the second limit nut, the minimum distance that the first gland 5 and the second gland 13 can be close to each other can be set so as to avoid the distance that the two glands are close to each other from being too close.
And a high-temperature-resistant flexible filler 6, such as a graphite filler, is filled between the fixed ring plate 4 and the movable sealing ring.
An oil filling hole 8 is formed in the first gland 5 between the fixed ring plate 4 and the movable sealing ring 1, and lubricating grease can be filled towards the area where the high-temperature-resistant flexible packing is located through the oil filling hole, so that the heat resistance of the sealing packing is improved, a lubricating effect can be achieved, and a sealing effect can be improved; specifically, the grease is graphite grease.
In addition, as an alternative embodiment, the oil injection hole 8 may be provided in the second gland 13, or in both the first gland 5 and the second gland 13.
Specifically, the oil filling hole 8 is provided with a non-return structure. The non-return structure only allows the lubricating grease to flow into the sealing filler box and prevents the lubricating grease from flowing out of the sealing filler box, so that the sealing effect is not influenced, the sealing lubricating grease is conveniently injected, the sealing effect is improved, the using amount of the lubricating grease is saved, and the cost is saved.
Specifically, a sealing skin 9 is connected between the first gland 5 and the second gland 13 and positioned at the periphery of the fixed ring plate 4; by arranging the sealing skin, the sealing effect can be further improved.
Specifically, the automatic compression type rotary sealing structure further comprises a limiting rod 11, one end of the limiting rod is fixedly connected to the material box 2, and the other end of the limiting rod penetrates through the sealing stuffing box and is connected with the sealing stuffing box in a clearance-keeping manner;
the first limiting nut 15 is connected to the limiting rod 11 and is arranged at an interval with the sealing stuffing box; the first limiting nuts 15 on each limiting rod are at least two and are respectively positioned on two outer sides of the sealing stuffing box.
Through setting up the gag lever post, restrict the axial displacement scope of gland packing case to can carry out certain axial spacing to moving the sealing ring through the gland packing case, further improve the sealed effect when rotary furnace takes place to rotate and beats.
Specifically, the stuffing box has at least two ear plates 12 arranged at intervals, and the limiting rod 11 is connected with the stuffing box by sequentially penetrating through the ear plates 12.
Principle of operation
When the rotary furnace works, as shown in fig. 1, the rotary furnace drives the movable sealing ring 1 to perform rotary motion, and axial movement and radial jumping also occur. When the movable sealing ring 1 moves axially, the sealing packing box is driven to move together, and can only move axially within a certain range under the action of the limiting rod 11 and the first limiting nut 15, so that the movable sealing ring 1 can be axially limited to a certain extent through the sealing packing box.
Due to the radial limiting of the limiting rod 11 and the connection between the feed box 2 and the sealing filler box through metal flexible connection, the movable sealing ring 1 can be allowed to radially jump in a certain range without generating the problem of gap leakage.
Regarding the automatic compression of the packing box, because the first gland 5 and the second gland 13 of the packing box are connected through the connecting screw rod 7, the two ends of the connecting screw rod 7 are provided with the locking nuts 14, and the compression spring 10 is arranged between one of the locking nuts 14 and the gland, when the packing box moves along the axial direction of the movable sealing ring 1, the spacing distance between the first gland 5 and the second gland 13 can be automatically adjusted, so that the compression degree of the packing in the packing box on the movable sealing ring 1 is adaptively changed, the automatic compression of the packing on the movable sealing ring 1 is ensured, and the sliding of the packing box relative to the movable sealing ring 1 is reduced.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious changes and modifications can be made without departing from the scope of the invention.
Claims (10)
1. An automatic pressing mode rotary seal structure, which is characterized by comprising:
a bin (2);
the movable sealing ring (1) penetrates the inner side or the outer side of the material box (2) partially, and a gap is formed between the movable sealing ring (1) and the material box (2);
the sealing stuffing box can be sleeved on the movable sealing ring (1) in an automatic pressing manner and is in sealing connection with the material box (2) through a flexible connection (3).
2. The self-compressing rotary seal structure according to claim 1, wherein the flexible connection (3) is a metal flexible connection.
3. The self-compressing rotary seal structure of claim 1 wherein the packing box comprises:
the first gland (5) is an annular structure which is sleeved on the movable sealing ring (1) with a gap between the first gland and the movable sealing ring (1);
the second gland (13) is an annular structure which is sleeved on the movable sealing ring (1) with a gap kept between the second gland (13) and the movable sealing ring (1), and a gap is kept between the second gland (13) and the first gland (5);
the fixed ring plate (4) is of an annular structure which is sleeved on the movable sealing ring (1) at intervals with the movable sealing ring (1), the fixed ring plate (4) is connected between the first gland (5) and the second gland (13), and the fixed ring plate (4) can stretch along the axial direction of the movable sealing ring (1);
an automatic pressing structure connected to the first gland (5) and/or the second gland (13) and having a biasing force for driving the first gland (5) and/or the second gland (13) to move toward a direction for compressing a space between the two glands.
4. The self-compressing rotary seal construction of claim 3, wherein the self-compressing construction comprises:
the connecting screw rod (7) sequentially penetrates through the first gland (5) and the second gland (13), and two ends of the connecting screw rod are connected with locking nuts (14);
and the compression spring (10) is at least arranged at one end of the connecting screw rod (7) in a penetrating way and is positioned between the locking nut (14) and the first gland (5) or the second gland (13).
5. The self-compressing rotary seal structure according to claim 3 or 4, wherein a high temperature resistant flexible packing (6) is filled between the stationary ring plate (4) and the movable seal ring (1).
6. The self-compressing rotary seal according to claim 3 or 4, characterized in that an oil filler hole (8) is provided in the first gland (5) and/or the second gland (13) between the stationary ring plate (4) and the dynamic seal ring (1).
7. The self-clinching rotary seal structure of claim 6, wherein the oil hole (8) has a check structure thereon.
8. Self-compressing rotary seal according to claim 3, characterised in that a sealing skin (9) is connected between the first gland (5) and the second gland (13) at the periphery of the retaining ring plate (4).
9. The self-compressing rotary seal arrangement of claim 1, further comprising: one end of the limiting rod (11) is fixedly connected to the material box (2), and the other end of the limiting rod penetrates through the sealing filler box and is connected with the sealing filler box in a clearance-keeping mode;
the first limiting nut (15) is connected to the limiting rod (11) and is arranged at an interval with the sealing stuffing box; the first limiting nuts (15) on each limiting rod are at least two and are respectively positioned on two outer sides of the sealing stuffing box.
10. The self-compacting rotary seal structure of claim 9, characterized in that the stuffing box has at least two spaced lugs (12), and the stopper rod (11) is connected to the stuffing box by passing through the lugs (12) in sequence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922016410.6U CN210978533U (en) | 2019-11-20 | 2019-11-20 | Automatic pressing type rotary sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922016410.6U CN210978533U (en) | 2019-11-20 | 2019-11-20 | Automatic pressing type rotary sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210978533U true CN210978533U (en) | 2020-07-10 |
Family
ID=71417875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922016410.6U Active CN210978533U (en) | 2019-11-20 | 2019-11-20 | Automatic pressing type rotary sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210978533U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115069190A (en) * | 2022-07-26 | 2022-09-20 | 青岛丹香投资管理有限公司 | Mechanical sealing device for food reaction kettle |
-
2019
- 2019-11-20 CN CN201922016410.6U patent/CN210978533U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115069190A (en) * | 2022-07-26 | 2022-09-20 | 青岛丹香投资管理有限公司 | Mechanical sealing device for food reaction kettle |
| CN115069190B (en) * | 2022-07-26 | 2023-11-24 | 青岛丹香投资管理有限公司 | Mechanical sealing device for food reaction kettle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210978533U (en) | Automatic pressing type rotary sealing structure | |
| CN111255945A (en) | Valve rod sealing structure and valve | |
| CN107887039A (en) | Nuclear power plant's access lock displacement compensation device | |
| CN100370146C (en) | Mechaniclly sealing device of immersible pump | |
| CN210496847U (en) | Centrifuge scraper seal structure | |
| CN112283440B (en) | Straight-stroke material loss-free high-temperature normal-pressure packing sealing structure | |
| CN208982657U (en) | The stuffing seal component of pusher | |
| US20080042369A1 (en) | Stuffing box with wear indicator | |
| CN215720810U (en) | Shaft sealing structure capable of detecting leakage | |
| CN208578974U (en) | A kind of rotation axis seal structure in spandex production | |
| CN105650398B (en) | A kind of plugging device | |
| CN213743327U (en) | Packing seal sleeve for oil field drilling equipment | |
| CN210560528U (en) | Resettable stemming sealing mechanism | |
| CN209540040U (en) | A kind of low leakage rotary dynamic sealing device for waste and old rubber thermal cracking | |
| CN206846075U (en) | A kind of reaction stuffing seal | |
| CN210972205U (en) | Sealing device | |
| CN110725952A (en) | Tension sealing device and pyrolysis system comprising same | |
| CN211344030U (en) | High-stability high-pressure-resistant oil seal for excavator | |
| CN205478184U (en) | Hydrogen ammonia piston compressor filler device | |
| CN219932951U (en) | Rotary shaft sealing element | |
| CN109723824A (en) | A kind of low leakage rotary dynamic sealing device for waste and old rubber thermal cracking | |
| CN216142958U (en) | External sealed centrifugal pump | |
| CN211924889U (en) | Nitrogen sealing device for shaft sealing | |
| CN220319893U (en) | Corrosion-resistant structure of centrifugal pump for coal chemical industry | |
| CN212928776U (en) | Oil seal for gas compressor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |