CN108443505A - Floating ring mechanically-sealing apparatus - Google Patents
Floating ring mechanically-sealing apparatus Download PDFInfo
- Publication number
- CN108443505A CN108443505A CN201810466041.8A CN201810466041A CN108443505A CN 108443505 A CN108443505 A CN 108443505A CN 201810466041 A CN201810466041 A CN 201810466041A CN 108443505 A CN108443505 A CN 108443505A
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- CN
- China
- Prior art keywords
- ring
- stationary
- rotating
- face
- block
- 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.)
- Withdrawn
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/164—Sealings between relatively-moving surfaces the sealing action depending on movements; pressure difference, temperature or presence of leaking fluid
Abstract
The invention discloses a kind of floating ring mechanically-sealing apparatus, including rotating ring, rotating seat, stationary ring, stationary seat, compensating element, and mounting base, the end face of stationary ring and rotating ring contact forms end face seal；Stationary ring or rotating ring are made of multiple ring blocks, and two adjacent ring blocks are all the peripheries that a wherein ring block is located at another ring block, cushion is also equipped between all ring blocks and stationary seat or rotating seat, inner face and the end face of stationary ring or rotating ring of all ring blocks form multiple tracks end face seal.Rotating ring or stationary ring are designed as non-integral shape by the present invention, but multiple ring blocks are composed, to form the mutually independent seal face of multiple tracks, and sealing medium from an end face when flowing to another end face, there is certain antihypertensive effect, be similar to labyrinth seal, most importantly this structure can be to avoid serious using end wear when whole stationary ring and rotating ring, and the phenomenon that causing that entire sealing system is caused to fail, extend the service life of sealing device.
Description
Technical field
The present invention relates to technical field of mechanical to be mainly used for whirler more particularly to a kind of mechanically-sealing apparatus
In tool, such as various pumps, compressor and reaction Fu.
Background technology
Mechanical seal (mechanical seal) refers to perpendicular to the end face of rotation axis by least a pair in Fluid pressure
It keeps being bonded and constituting with respect to sliding under the action of compensation mechanism elastic force (or magnetic force) and under the cooperation of auxiliary seal
The device for preventing fluid from leaking.
Mechanical seal is widely used in oil, chemical industry, machinery and aerospace field.It is mainly used for rotating machinery, it is close
The effect of envelope is to prevent the leakage of sealed medium, while extraneous pollutant and impurity being prevented to enter equipment cavity, from
And the medium in contaminated equipment cavity.
Conventional machinery sealing structure is as shown in Figure 1, including mainly dynamic (quiet) the ring seat A1 rotated with axis, moving at present
(quiet) ring A2, quiet (dynamic) ring A3, quiet (dynamic) ring seat A4 and compensating element, A5.
The mechanism of mechanical seal is as follows：Rotating ring uses tight fit with rotating seat, rotates with the axis together, and stationary ring and stationary ring
Seat is static element, seals start of run, and rotating ring and stationary ring fit, and it is in cavity that, which there are one layer of micron-sized liquid film, liquid film in centre,
The layer fluid film that is formed toward external leakage of medium, when closing force (including the compensation member between two sealing rings (rotating ring and stationary ring)
The spring force of part, pressure of the intracavitary medium to sealing ring) with the opening force of sealing ring (include the contact force of sealing ring, fluid film
Pressure medium) it is equal when, liquid film reaches stable, and sealing reaches stress balance, sealing also can stable operation, seal fluid at this time
Film is stabilized, and medium will not be toward external leakage.Here it is the dominant mechanisms of sealing.
But there is also many problems, such as sealing ring, and abrasion, scuffing or the crackle of sealing surface occurs for mechanical seal at present
Deng easily leading to sealing ring global failure, be a problem of current mechanical seal generally existing.
Invention content
The invention mainly solves the technical problem of providing a kind of floating ring mechanically-sealing apparatus, and rotating ring or stationary ring are set
It is calculated as non-integral shape, but multiple ring blocks are composed, to form the mutually independent seal face of multiple tracks, and sealing medium
When flowing to another end face from an end face, there is certain antihypertensive effect, is similar to labyrinth seal, most importantly this structure
It can prolong to avoid serious using end wear when whole stationary ring and rotating ring, and the phenomenon that cause that entire sealing system is caused to fail
The service life of sealing device is grown.
In order to solve the above technical problems, one aspect of the present invention is：A kind of floating ring mechanical seal is provided
Device, including rotating ring, rotating seat, stationary ring, stationary seat, compensating element, and mounting base, the mounting base are installed on equipment to be sealed
Shell, one end of the compensating element, connects the mounting base, and the other end connects the stationary seat, the stationary seat installation
The stationary ring, the rotating seat and the rotating ring are placed on the shaft of equipment to be sealed, and the rotating seat installs the rotating ring, described
The end face of stationary ring and rotating ring contact forms end face seal；
The stationary ring is made of multiple ring blocks, and two adjacent ring blocks are all that a wherein ring block is located at the outer of another ring block
Week cushion, the end face of that side of the close rotating ring of all ring blocks are also equipped between all ring blocks and rotating seat
Multiple tracks end face seal is formed with the end face of rotating ring；
Or the rotating ring is made of multiple ring blocks, and two adjacent ring blocks are all that a wherein ring block is located at another ring block
Periphery is also equipped with cushion, the end of that side of the close stationary ring of all ring blocks between all ring blocks and stationary seat
Face and the end face of stationary ring form multiple tracks end face seal.
In order to solve the above technical problems, the further technical solution that the present invention uses is：The stationary ring or the rotating ring by
The different ring block composition of multiple friction coefficient.
It further says, the cushion is rubber pad or metal gasket.
It further says, the stationary ring or the rotating ring are made of the different ring block of 3-10 friction coefficient.
Further to say, the rotating ring is made of multiple ring blocks, and cushion is also equipped between the ring block and rotating seat,
The inner face of all ring blocks and the end face of stationary ring form multiple tracks end face seal.
It further says, the rotating ring is made of the different ring block of 5 friction coefficient, and respectively is ring from inside to outside
Block one, ring block two, ring block three, ring block four and ring block five.
It further says, when the rotating ring is made of multiple ring blocks, the cushion is installed on the ring block and described
Rotating seat, the stationary ring is connect for integral type with stationary seat or split type connection；
Or when the stationary ring is made of multiple ring blocks, the cushion is installed on the ring block and the stationary seat,
The rotating ring is connect for integral type with rotating seat or split type connection.
It further says, the compensating element, is spring or metal bellows.
The beneficial effects of the invention are as follows：
The present invention includes rotating ring, rotating seat, stationary ring, stationary seat, compensating element, and mounting base, and stationary ring or rotating ring are by multiple
Ring block forms, and inner face and the end face of stationary ring or rotating ring of all ring blocks form multiple tracks end face seal, and rotating ring or stationary ring are set
It is calculated as non-integral shape, but multiple ring blocks are composed, to form the mutually independent seal face of multiple tracks, and sealing medium
When flowing to another end face from an end face, there is certain antihypertensive effect, is similar to labyrinth seal, most importantly this structure
It can prolong to avoid serious using end wear when whole stationary ring and rotating ring, and the phenomenon that cause that entire sealing system is caused to fail
The service life of sealing device is grown；
Furthermore cushion is also equipped between all ring blocks and stationary seat or rotating seat, rubber, metal can be used in cushion
Either other high-elastic elastomer materials provide elastic force to rotating ring or stationary ring, and effect is similar to spring, when a certain piece of sealing ring
When either being impacted by larger axial force, cushion can absorb part power, generate local deformation, without will be excessive
Power or displacement transfer give next ring block, therefore other ring block is also to maintain the good contact between seal face, therefore
End face seal between other ring blocks and stationary ring or rotating ring is still effective, ensures the sealing effect of entire sealing device, extends it
Service life；
Furthermore different materials may be used in multiple ring blocks, mutually supports, matched with stationary ring (rotating ring), due to each
The friction coefficient of material is different, and linear velocity is different in radial directions for rotating ring (stationary ring), therefore frictional heat is in radial side
To there is larger difference, by using no rotating ring block (stationary ring block) in different positions, it can reasonably change sealing ring
The heat distribution of end face, and abrasion distribution；
Furthermore using multiple ring blocks composition sealing ring, there are one clear advantages, after some ring block serious wear,
Other ring blocks can continue to work, will not be because of a ring block serious wear, and integral sealing is caused to fail.
Above description is only the general introduction of technical solution of the present invention, in order to better understand the technical means of the present invention,
And can be implemented in accordance with the contents of the specification, below with presently preferred embodiments of the present invention and after coordinating attached drawing to be described in detail such as.
Description of the drawings
Fig. 1 is the structural schematic diagram of the prior art；
Fig. 2 is the structural schematic diagram of the present invention；
Each section label is as follows in attached drawing：
Rotating seat 1, cushion 2, ring block 1, ring block 24, ring block 35, ring block 46, ring block 57, stationary ring 8, stationary seat
9, compensating element, 10 and mounting base 11.
Specific implementation mode
Illustrate that the specific implementation mode of the present invention, those skilled in the art can be by these below by way of particular specific embodiment
The revealed content of specification understands advantages of the present invention and effect easily.The present invention can also other different modes give
Implement, that is, under the scope of without departing substantially from disclosed, different modification and change can be given.
Embodiment：A kind of floating ring mechanically-sealing apparatus, as shown in Fig. 2, including rotating ring, rotating seat 1, stationary ring 8, stationary seat
9, compensating element, 10 and mounting base 11, the mounting base are installed on the shell of equipment to be sealed, and one end of the compensating element, connects
Connect the mounting base, and the other end connects the stationary seat, the stationary seat installs the stationary ring, the rotating seat and described dynamic
It is located on the shaft of equipment to be sealed, the rotating seat installs the rotating ring, the end face shape of the stationary ring and rotating ring contact
At end face seal；
The stationary ring is made of multiple ring blocks, and two adjacent ring blocks are all that a wherein ring block is located at the outer of another ring block
Week cushion 2, the end face of that side of the close rotating ring of all ring blocks are also equipped between all ring blocks and rotating seat
Multiple tracks end face seal is formed with the end face of rotating ring；
Or the rotating ring is made of multiple ring blocks, and two adjacent ring blocks are all that a wherein ring block is located at another ring block
Periphery is also equipped with cushion 2, the end of that side of the close stationary ring of all ring blocks between all ring blocks and stationary seat
Face and the end face of stationary ring form multiple tracks end face seal.
The structure of sealing device in the present embodiment is the latter.
The stationary ring or the rotating ring are made of the different ring block of multiple friction coefficient.
The cushion is rubber pad or metal gasket.But not limited to this, can be other elastic material pads.
The stationary ring or the rotating ring are made of the different ring block of 3-10 friction coefficient.
It is preferred that the rotating ring is made of the different ring block of 5 friction coefficient, and it respectively is ring block from inside to outside
One 3, ring block 24, ring block 35, ring block 46 and ring block 57.
When the rotating ring is made of multiple ring blocks, the cushion is installed on the ring block and the rotating seat, described
Stationary ring is connect for integral type with stationary seat or split type connection；
Or when the stationary ring is made of multiple ring blocks, the cushion is installed on the ring block and the stationary seat,
The rotating ring is connect for integral type with rotating seat or split type connection.
The compensating element, is spring or metal bellows.
In the present embodiment, stationary ring or rotating ring are made of multiple ring blocks, the inner faces of all ring blocks and stationary ring or rotating ring
End face forms multiple tracks end face seal, and rotating ring or stationary ring are designed as non-integral shape, but multiple ring blocks are composed, to
The mutually independent seal face of multiple tracks is formed, and when sealing medium flows to another end face from an end face, there is certain decompression
Effect, is similar to labyrinth seal, and most importantly this structure can be to avoid tight using end wear when whole stationary ring and rotating ring
Again, the phenomenon that causing that entire sealing system is caused to fail, extends the service life of sealing device；
Be also equipped with cushion between all ring blocks and stationary seat or rotating seat, cushion can be used rubber, metal or
Other high-elastic elastomer materials provide elastic force to rotating ring or stationary ring, and effect is similar to spring, when a certain piece of sealing ring by
When larger axial force is either impacted, cushion can absorb part power, generate local deformation, without by excessive power
Or displacement transfer gives next ring block, therefore other ring blocks are also to maintain the good contact between seal face, therefore it is other
Ring block and stationary ring or rotating ring between end face seal it is still effective, ensure the sealing effect of entire sealing device, extend its use
Service life；
Different materials may be used in multiple ring blocks, mutually supports, is matched with stationary ring (rotating ring), due to each material
Friction coefficient is different, and linear velocity is different in radial directions for rotating ring (stationary ring), thus frictional heat radial direction have compared with
Big difference can reasonably change sealing ring end face by using no rotating ring block (stationary ring block) in different positions
Heat distribution, and abrasion distribution；
Using multiple ring blocks composition sealing ring, there are one clear advantages, other after some ring block serious wear
Ring block can continue to work, will not be because of a ring block serious wear, and integral sealing is caused to fail.
Example the above is only the implementation of the present invention is not intended to limit the scope of the invention, every to utilize this hair
Equivalent structure made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant technical fields, similarly
It is included within the scope of the present invention.
Claims (8)
1. a kind of floating ring mechanically-sealing apparatus, it is characterised in that：Including rotating ring, rotating seat (1), stationary ring (8), stationary seat (9),
Compensating element, (10) and mounting base (11), the mounting base are installed on the shell of equipment to be sealed, one end of the compensating element,
Connect the mounting base, and the other end connects the stationary seat, the stationary seat installs the stationary ring, the rotating seat and described
Rotating ring is placed on the shaft of equipment to be sealed, and the rotating seat installs the rotating ring, the end face of the stationary ring and rotating ring contact
Form end face seal；
The stationary ring is made of multiple ring blocks, and two adjacent ring blocks are all the periphery that a wherein ring block is located at another ring block, institute
Have and be also equipped with cushion (2) between the ring block and rotating seat, the end face of that side of the close rotating ring of all ring blocks with
The end face of rotating ring forms multiple tracks end face seal；
Or the rotating ring is made of multiple ring blocks, and two adjacent ring blocks are all that a wherein ring block is located at the outer of another ring block
Week cushion (2), the end of that side of the close stationary ring of all ring blocks are also equipped between all ring blocks and stationary seat
Face and the end face of stationary ring form multiple tracks end face seal.
2. floating ring mechanically-sealing apparatus according to claim 1, it is characterised in that：The stationary ring or the rotating ring are by more
The different ring block composition of a friction coefficient.
3. floating ring mechanically-sealing apparatus according to claim 1, it is characterised in that：The cushion is rubber pad or gold
Belong to pad.
4. floating ring mechanically-sealing apparatus according to claim 2, it is characterised in that：The stationary ring or the rotating ring are by 3-
The different ring block composition of 10 friction coefficient.
5. floating ring mechanically-sealing apparatus according to claim 2, it is characterised in that：The rotating ring is by multiple ring block groups
At being also equipped with cushion between the ring block and rotating seat, the inner face of all ring blocks and the end face of stationary ring form more
Road end face seal.
6. floating ring mechanically-sealing apparatus according to claim 5, it is characterised in that：The rotating ring is by 5 friction coefficient
Different ring block compositions, and respectively be from inside to outside ring block one (3), ring block two (4), ring block three (5), ring block four (6) and
Ring block five (7).
7. floating ring mechanically-sealing apparatus according to claim 1, it is characterised in that：When the rotating ring has multiple ring block groups
Cheng Shi, the cushion are installed on the ring block and the rotating seat, and the stationary ring and stationary seat are that integral type connects or seperated
Formula connects；
Or when the stationary ring is made of multiple ring blocks, the cushion is installed on the ring block and the stationary seat, described
Rotating ring is connect for integral type with rotating seat or split type connection.
8. floating ring mechanically-sealing apparatus according to claim 1, it is characterised in that：The compensating element, is spring or gold
Belong to bellows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810466041.8A CN108443505A (en) | 2018-05-16 | 2018-05-16 | Floating ring mechanically-sealing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810466041.8A CN108443505A (en) | 2018-05-16 | 2018-05-16 | Floating ring mechanically-sealing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108443505A true CN108443505A (en) | 2018-08-24 |
Family
ID=63203811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810466041.8A Withdrawn CN108443505A (en) | 2018-05-16 | 2018-05-16 | Floating ring mechanically-sealing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108443505A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112178198A (en) * | 2020-11-02 | 2021-01-05 | 天长市金祝机械密封件有限公司 | Spring mechanical seal compensating ring assembly |
-
2018
- 2018-05-16 CN CN201810466041.8A patent/CN108443505A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112178198A (en) * | 2020-11-02 | 2021-01-05 | 天长市金祝机械密封件有限公司 | Spring mechanical seal compensating ring assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180824 |