CN221075242U - Floating ring sealing structure - Google Patents
Floating ring sealing structure Download PDFInfo
- Publication number
- CN221075242U CN221075242U CN202323158957.2U CN202323158957U CN221075242U CN 221075242 U CN221075242 U CN 221075242U CN 202323158957 U CN202323158957 U CN 202323158957U CN 221075242 U CN221075242 U CN 221075242U
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- China
- Prior art keywords
- sealing
- sealing ring
- ring
- embedded
- mounting groove
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- 238000007789 sealing Methods 0.000 title claims abstract description 93
- 238000009434 installation Methods 0.000 claims abstract description 7
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 9
- 230000008901 benefit Effects 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 244000126211 Hericium coralloides Species 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
Landscapes
- Gasket Seals (AREA)
Abstract
The utility model belongs to the technical field of sealing, in particular to a floating ring sealing structure which comprises a sealing ring seat, an embedded sealing ring, a spring and a sealing ring seat, wherein the sealing ring seat is sleeved on a shaft, the left side is a medium side, and the right side is an atmosphere side; a left side mounting groove and a right side mounting groove are formed in the sealing ring seat; the embedded sealing rings are arranged in groups, three embedded sealing rings are arranged in the left side mounting groove, the three embedded sealing rings are attached together to form a sealing ring group, the outer side of the sealing ring group is sleeved on the outer side of the shaft, and the outer side of the sealing ring group is sequentially provided with a spring and a retainer ring; two embedded sealing rings are arranged in the right side mounting groove, a spring is arranged between the two sealing rings, and an end cover is arranged on the outer side of the rightmost embedded sealing ring. The novel floating ring carbon ring provided by the utility model has the advantages of reasonable structure, simplicity in installation, contribution to narrow sealing cavities and capability of bearing counter pressure in a balanced manner.
Description
Technical Field
The utility model belongs to the technical field of sealing, and particularly relates to a floating ring sealing structure.
Background
Under severe conditions, the sealing requirement of the equipment is very important, and the effects of mechanical sealing and comb tooth sealing cannot meet the use requirement for special working conditions and structural design. While floating ring seals support the above conditions to be selected by a wide range of users.
The floating ring seal is mainly applied to large-shaft-diameter equipment, high-speed and high-temperature small-shaft-diameter turbine equipment and special working condition structural equipment. For a sealed cavity that is relatively narrow, conventional sealing cannot be achieved. Therefore, the sealing cavity is narrower, the sealing requirements of high speed and high temperature are met, the conventional floating ring carbon ring is sealed, the dry gas sealing structure cannot meet the requirements, and the floating ring seal with the novel structure completely meets the requirements.
The design technology is continuously advanced deeply, the popularization and application are mature and applicable to new technology, the design quality, the technical level and the benefit efficiency of the floating ring seal are continuously improved, and the application of the new technology, the new equipment and the new technology of the floating ring seal are continuously developed.
Therefore, the novel floating ring carbon ring structure is developed and is suitable for the narrow, high-speed and high-temperature sealing cavity of the compressor. Meanwhile, the double-balanced seal meets the double-working condition requirement, and has the advantages of simple installation and reliable use.
Disclosure of utility model
In view of the above, the present utility model provides a floating ring seal structure, comprising a seal ring seat, an embedded seal ring and a spring,
The sealing ring seat is sleeved on the shaft, the left side is a medium side, and the right side is an atmosphere side; a left side mounting groove and a right side mounting groove are formed in the sealing ring seat;
The embedded sealing rings are arranged in groups, three embedded sealing rings are arranged in the left side mounting groove, the three embedded sealing rings are attached together to form a sealing ring group, the outer side of the sealing ring group is sleeved on the outer side of the shaft, and the outer side of the sealing ring group is sequentially provided with a spring and a retainer ring; two embedded sealing rings are arranged in the right side mounting groove, a spring is arranged between the two sealing rings, and an end cover is arranged on the outer side of the rightmost embedded sealing ring.
Further, a circle of metal ring is inlaid on the outer side of the inlaid sealing ring.
Further, an exhaust port and an air injection port are arranged on the sealing ring seat; the exhaust port is positioned between the left side mounting groove and the right side mounting groove; the gas injection port is communicated into the right side installation groove.
Further, the section of the spring is an M-shaped knot, and two ends of the spring are provided with vertical surfaces which are attached to the contacted embedded sealing ring surface.
The utility model has the advantages that: the seal spacer multi-section design is adopted, the seal box and the end cover are assembled in sequence, and the installation is simple. Very small running clearance of the embedded sealing ring, low leakage, wide-face structure and small leakage amount. The novel floating ring carbon ring provided by the utility model has the advantages of reasonable structure, simplicity in installation, contribution to narrow sealing cavities and capability of bearing counter pressure in a balanced manner.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model.
1, A sealing ring seat; 2. a retainer ring; 3. a spring; 4. inlay the sealing ring; 5. a metal ring; 6. an end cap.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1, the utility model provides a floating ring sealing structure, which comprises a sealing ring seat, an embedded sealing ring and a spring,
The sealing ring seat is sleeved on the shaft, the left side is a medium side, and the right side is an atmosphere side; a left side mounting groove and a right side mounting groove are formed in the sealing ring seat;
The embedded sealing rings are arranged in groups, three embedded sealing rings are arranged in the left side mounting groove, the three embedded sealing rings are attached together to form a sealing ring group, the outer side of the sealing ring group is sleeved on the outer side of the shaft, and the outer side of the sealing ring group is sequentially provided with a spring and a retainer ring; two embedded sealing rings are arranged in the right side mounting groove, a spring is arranged between the two sealing rings, and an end cover is arranged on the outer side of the rightmost embedded sealing ring.
As an improvement of the scheme, a circle of metal ring is inlaid on the outer side of the inlaid sealing ring.
As an improvement of the scheme, an exhaust port and an air injection port are arranged on the sealing ring seat; the exhaust port is positioned between the left side mounting groove and the right side mounting groove; the gas injection port is communicated to the right side installation groove, and half of users of the gas exhaust port discharge toxic gas in the sealing system, and the gas injection port is used for injecting nitrogen and the like.
As an improvement of the scheme, the section of the spring is an M-shaped knot, and two ends of the spring are provided with vertical surfaces which are attached to the contacted embedded sealing ring surface.
According to the utility model, 3 embedded sealing rings are sequentially arranged in a left side mounting groove in a sealing ring seat, and are supported and positioned by a retainer ring and an axial spring 3.
The 3 inlaid sealing rings are metal inlaid, wide-face and balanced carbon rings. Graphite is corrosion-resistant and heat-resistant, but is easy to break under the action of radial load under the working conditions of high temperature and high pressure, so that a metal ring is inlaid outside the graphite ring. The embedded structure can obviously increase the overall strength and rigidity of the sealing ring and reduce the pressure deformation of the end face of the sealing ring. Very small running clearance-low leakage. 3 broad-side combinations reduce leakage; the balanced carbon ring seal can be run bi-directionally and back-pressure.
The axial spring with the novel structure enables the side face end faces of the sealing ring to be attached to form an auxiliary sealing interface. Under the parking working condition, the sealing ring can form a better static seal through the closing force provided by the elastic compensation element and the high-precision matching surface. The compensating element stabilizes the carbocycle, which does not fluctuate when the pressure is reduced. The novel structure of the axial spring and the retainer ring are combined to fix the position of the carbon ring.
The right side mounting groove is internally provided with an auxiliary sealing bearing isolation airtight seal, which is formed by 2 axial springs embedded with sealing rings and a novel structure, and an end cover is used for preventing bearing oil from polluting and sealing.
The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (4)
1. A floating ring sealing structure is characterized in that: comprises a sealing ring seat, a mosaic sealing ring and a spring,
The sealing ring seat is sleeved on the shaft, the left side is a medium side, and the right side is an atmosphere side; a left side mounting groove and a right side mounting groove are formed in the sealing ring seat;
The embedded sealing rings are arranged in groups, three embedded sealing rings are arranged in the left side mounting groove, the three embedded sealing rings are attached together to form a sealing ring group, the outer side of the sealing ring group is sleeved on the outer side of the shaft, and the outer side of the sealing ring group is sequentially provided with a spring and a retainer ring; two embedded sealing rings are arranged in the right side mounting groove, a spring is arranged between the two sealing rings, and an end cover is arranged on the outer side of the rightmost embedded sealing ring.
2. The floating ring seal arrangement of claim 1 wherein: and a circle of metal ring is inlaid at the outer side of the inlaid sealing ring.
3. The floating ring seal arrangement of claim 1 wherein: an exhaust port and an air injection port are arranged on the sealing ring seat; the exhaust port is positioned between the left side mounting groove and the right side mounting groove; the gas injection port is communicated into the right side installation groove.
4. The floating ring seal arrangement of claim 1 wherein: the section of the spring is an M-shaped knot, and two ends of the spring are provided with vertical surfaces which are attached to the contacted embedded sealing ring surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323158957.2U CN221075242U (en) | 2023-11-23 | 2023-11-23 | Floating ring sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323158957.2U CN221075242U (en) | 2023-11-23 | 2023-11-23 | Floating ring sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221075242U true CN221075242U (en) | 2024-06-04 |
Family
ID=91262052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323158957.2U Active CN221075242U (en) | 2023-11-23 | 2023-11-23 | Floating ring sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221075242U (en) |
-
2023
- 2023-11-23 CN CN202323158957.2U patent/CN221075242U/en active Active
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