CN208670065U - Floating ring mechanical sealing member - Google Patents
Floating ring mechanical sealing member Download PDFInfo
- Publication number
- CN208670065U CN208670065U CN201820724473.XU CN201820724473U CN208670065U CN 208670065 U CN208670065 U CN 208670065U CN 201820724473 U CN201820724473 U CN 201820724473U CN 208670065 U CN208670065 U CN 208670065U
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- Prior art keywords
- ring
- sealing
- face
- stationary
- rotating
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Abstract
The utility model discloses a kind of floating ring mechanical sealing members, including compensating element, mounting base, two sealing rings and two ring seats, two sealing rings are respectively rotating ring and stationary ring, and two ring seats are respectively rotating seat and stationary seat, the end face formation end face seal of stationary ring and rotating ring contact；In two sealing rings, wherein a sealing ring has at least one circle groove, each groove is all axially extended from the end face of sealing ring, and sealing block and elastic cushion are equipped in groove.Rotating ring or stationary ring are designed as non-integral shape by the utility model, but sealing ring is composed with sealing block, to form the mutually independent seal face of multiple tracks, and sealing medium is when flowing to another end face from an 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 entire sealing system to fail is caused, 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 technique
Mechanical seal (mechanical seal) refers to by least a pair of end face perpendicular to rotation axis in Fluid pressure
With keep under the action of compensation mechanism elastic force (or magnetic force) and under the cooperation of auxiliary seal being bonded and constituting with respect to sliding
The device for preventing fluid from leaking.
Mechanical seal is widely used in petroleum, 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 intracorporal medium of contaminated equipment chamber.
Conventional machinery sealing structure is as shown in Figure 1, mainly include dynamic (quiet) the ring seat A1 rotated with axis, dynamic 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 and rotating seat use tight fit, rotate 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 there be one layer of micron-sized liquid film in centre, and liquid film is in cavity
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 opening force (contact force including sealing ring, the fluid film of sealing ring
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 generally existing problem of current mechanical seal.
Summary of the invention
The invention mainly solves the technical problem of providing a kind of floating ring mechanical sealing members, and rotating ring or stationary ring are designed
For non-integral shape, but sealing ring is composed with sealing block, to form the mutually independent seal face of multiple tracks, and is sealed
When medium flows to another end face from an end face, there is certain antihypertensive effect, is similar to labyrinth seal, it is most importantly this
Structure can be serious to avoid end wear when using whole stationary ring and rotating ring, and causes to lead to showing for entire sealing system failure
As extending the service life of sealing device.
In order to solve the above technical problems, one technical scheme adopted by the invention is that: a kind of floating ring mechanical seal is provided
Part, including compensating element, mounting base, two sealing rings and two ring seats, two sealing rings are respectively rotating ring and stationary ring, and two
A ring seat is respectively rotating seat and stationary seat, and the mounting base is installed on the shell of equipment to be sealed, the compensating element,
One end connect the mounting base, and the other end connects the stationary seat, and the stationary seat installs the stationary ring, the rotating seat
The shaft of equipment to be sealed is placed on the rotating ring, the rotating seat installs the rotating ring, the stationary ring and rotating ring contact
End face formed end face seal；
In two sealing rings, wherein a sealing ring has at least one circle groove, each groove is all from described close
The end face of seal ring axially extends, and is equipped with sealing block and elastic cushion in the groove, an end face of the sealing block with
The end face of another sealing ring forms end face seal, and the other end of the sealing block connects the elastic cushion.
In order to solve the above technical problems, the further technical solution that the present invention uses is: the elastic cushion for rubber pad or
Metal gasket.
It further says, the sealing block is PTFE block.
It further says, the groove is equipped with a circle, and is located at the inner diameter location of the sealing ring.
It further says, the rotating ring has at least one circle groove, and each groove is all from the end face edge of the rotating ring
It is axially extending to form, sealing block and elastic cushion, an end face of the sealing block and the end of the stationary ring are installed in the groove
Face forms end face seal, and the other end of the sealing block connects the elastic cushion.
It further says, the stationary ring has at least one circle groove, and each groove is all from the end face edge of the stationary ring
It is axially extending to form, sealing block and elastic cushion, an end face of the sealing block and the end of the rotating ring are installed in the groove
Face forms end face seal, and the other end of the sealing block connects the elastic cushion.
It further says, the stationary ring is connect with stationary seat for integral type or split type connection.
It further says, the rotating ring is connect with rotating seat for integral type or split type connection.
It further says, the compensating element, is spring or metal bellows.
It further says, the coefficient of friction of the sealing block is less than the coefficient of friction of the sealing ring
The beneficial effects of the present invention are:
The present invention includes compensating element, mounting base, two sealing rings and two ring seats, in two sealing rings, wherein one is close
Seal ring has at least one circle groove, and sealing block and elastic cushion, an end face and another sealing ring of sealing block are equipped in groove
End face forms end face seal, and other end connects elastic cushion, due to from the perspective of frictional heat, the outer diameter of sealing structure by
In linear velocity maximum, frictional heat is most, and the internal diameter linear velocity of sealing structure is small, and frictional heat is minimum；It is close from the perspective of heat transfer
Fluid of the outer diameter of seal structure in equipment cavity, there is sufficient fluid cooling, and inner radius is empty close to outside air, only outside
Gas convection current, fluid cooling effect are generally better than cross-ventilation；The case where according to frictional heat and heat dissipation, last highest temperature go out
Now close to the inner radius of sealing ring, therefore sealing ring is most severe near the operating condition of inner radius, therefore sealing block is set to and is leaned on
At the position of the internal diameter of nearly sealing ring, such as there is the PTFE material of self-lubricating material using low-friction material, can greatly drop
Low frictional heat herein；
Furthermore elastic cushion is also equipped between sealing block and ring seat, rubber, metal can be used for elastic cushion or other are high-elastic
Elastomer material provides elastic force to rotating ring or stationary ring, and effect is similar to spring, when a certain piece of sealing ring is by biggish axis
When either impacting to power, elastic cushion can absorb part power, generate local deformation, without by excessive power or deformation
Sealing ring is passed to, therefore the end face of sealing ring is also to maintain the good contact between seal face, i.e., is entirely sealed in sealing block
After failure, sealing ring still works, and therefore, is equivalent to two seals, and seals worst place using preferably low
Friction material and elastic cushion compensation, therefore sealing performance is significantly increased, it extends service life of seal.
The above description is only an overview of the technical scheme 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, the following is a detailed description of the preferred embodiments of the present invention and the accompanying drawings.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the prior art；
Fig. 2 is structural schematic diagram of the invention；
Each section label is as follows in attached drawing:
Rotating seat 1, rotating ring 2, elastic cushion 3, sealing block 4, stationary ring 5, stationary seat 6, compensating element, 7 and mounting base 8.
Specific embodiment
Illustrate a specific embodiment of the invention below by way of particular specific embodiment, those skilled in the art can be by this
The revealed content of specification understands advantages of the present invention and effect easily.The present invention can also give in further, different ways
Implement, that is, under the scope of without departing substantially from disclosed, different modification and change can be given.
Embodiment 1: a kind of floating ring mechanical sealing member, as shown in Fig. 2, including compensating element, 7, mounting base 8, two sealings
Ring and two ring seats, two sealing rings are respectively rotating ring 2 and stationary ring 5, and two ring seats are respectively rotating seat 1 and stationary ring
Seat 6, the mounting base are installed on the shell of equipment to be sealed, and one end of the compensating element, connects the mounting base, and another
End connects the stationary seat, and the stationary seat installs the stationary ring, and the rotating seat and the rotating ring are placed on equipment to be sealed
Shaft, the rotating seat install the rotating ring, the end face formation end face seal of the stationary ring and rotating ring contact；
In two sealing rings, wherein a sealing ring has at least one circle groove, each groove is all from described close
The end face of seal ring axially extends, and sealing block 4 and elastic cushion 3, an end face of the sealing block are equipped in the groove
End face seal is formed with the end face of another sealing ring, and the other end of the sealing block connects the elastic cushion.
The elastic cushion is rubber pad or metal gasket.But not limited to this, or other highly elastic materials.
The sealing block is PTFE (polytetrafluoroethylene (PTFE)) block.But not limited to this, or other low-friction materials.
The compensating element, is spring or metal bellows.
In the present embodiment, the groove is equipped with a circle, and is located at the inner diameter location of the sealing ring.
In the present embodiment, as shown in Fig. 2, the rotating ring has at least one circle groove, each groove is all from described dynamic
The end face of ring axially extends, and sealing block and elastic cushion, an end face of the sealing block and institute are equipped in the groove
The end face for stating stationary ring forms end face seal, and the other end of the sealing block connects the elastic cushion.
The stationary ring is connect with stationary seat for integral type or split type connection.In the present embodiment, the stationary ring and stationary seat
For split type connection.
Embodiment 2: a kind of floating ring mechanical sealing member, meaning not shown, structure is similar to Example 1, the difference is that:
The stationary ring has at least one circle groove, and each groove is all axially extended from the end face of the stationary ring, described recessed
Sealing block and elastic cushion are installed, an end face of the sealing block and the end face of the rotating ring form end face seal, and institute in slot
The other end for stating sealing block connects the elastic cushion.
The rotating ring is connect with rotating seat for integral type or split type connection.
In the present embodiment, including compensating element, mounting base, two sealing rings and two ring seats, in two sealing rings, wherein
One sealing ring has at least one circle groove, is equipped with sealing block and elastic cushion, an end face of sealing block and another sealing in groove
The end face of ring forms end face seal, and other end connects elastic cushion, due to from the perspective of frictional heat, sealing structure it is outer
Diameter is due to linear velocity maximum, and frictional heat is most, and the internal diameter linear velocity of sealing structure is small, and frictional heat is minimum；Come from the angle of heat transfer
See, fluid of the outer diameter of sealing structure in equipment cavity have sufficient fluid cooling, inner radius is close to outside air, only
Outside air convection current, fluid cooling effect are generally better than cross-ventilation；It is the case where according to frictional heat and heat dissipation, last highest
Temperature appears in the inner radius close to sealing ring, therefore sealing ring is most severe near the operating condition of inner radius, therefore sealing block is set
It is disposed adjacent at the position of the internal diameter of sealing ring, such as there is the PTFE material of self-lubricating material, Ke Yi great using low-friction material
The big frictional heat reduced herein；
Furthermore elastic cushion is also equipped between sealing block and ring seat, rubber, metal can be used for elastic cushion or other are high-elastic
Elastomer material provides elastic force to rotating ring or stationary ring, and effect is similar to spring, when a certain piece of sealing ring is by biggish axis
When either impacting to power, elastic cushion can absorb part power, generate local deformation, without by excessive power or deformation
Sealing ring is passed to, therefore the end face of sealing ring is also to maintain the good contact between seal face, i.e., is entirely sealed in sealing block
After failure, sealing ring still works, and therefore, is equivalent to two seals, and seals worst place using preferably low
Friction material and elastic cushion compensation, therefore sealing performance is significantly increased, it extends service life of seal.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all 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 (10)
1. a kind of floating ring mechanical sealing member, it is characterised in that: including compensating element, (7), mounting base (8), two sealing rings and
Two ring seats, two sealing rings are respectively rotating ring (2) and stationary ring (5), and two ring seats are respectively rotating seat (1) and quiet
Ring seat (6), the mounting base are installed on the shell of equipment to be sealed, and one end of the compensating element, connects the mounting base, and
The other end connects the stationary seat, and the stationary seat installs the stationary ring, and the rotating seat and the rotating ring are placed on to be sealed set
Standby shaft, the rotating seat install the rotating ring, the end face formation end face seal of the stationary ring and rotating ring contact；
In two sealing rings, wherein a sealing ring has at least one circle groove, each groove is all from the sealing ring
End face axially extend, sealing block (4) and elastic cushion (3), an end face of the sealing block are installed in the groove
End face seal is formed with the end face of another sealing ring, and the other end of the sealing block connects the elastic cushion.
2. floating ring mechanical sealing member according to claim 1, it is characterised in that: the elastic cushion is rubber pad or metal
Pad.
3. floating ring mechanical sealing member according to claim 1, it is characterised in that: the sealing block is PTFE block.
4. floating ring mechanical sealing member according to claim 1, it is characterised in that: the groove is equipped with a circle, and is located at
At the inner diameter location of the sealing ring.
5. floating ring mechanical sealing member according to claim 1, it is characterised in that: the rotating ring has at least one circle recessed
Slot, each groove are all axially extended from the end face of the rotating ring, are equipped with sealing block and elasticity in the groove
Pad, an end face of the sealing block and the end face of the stationary ring form end face seal, and the other end connection of the sealing block
The elastic cushion.
6. floating ring mechanical sealing member according to claim 1, it is characterised in that: the stationary ring has at least one circle recessed
Slot, each groove are all axially extended from the end face of the stationary ring, are equipped with sealing block and elasticity in the groove
Pad, an end face of the sealing block and the end face of the rotating ring form end face seal, and the other end connection of the sealing block
The elastic cushion.
7. floating ring mechanical sealing member according to claim 5, it is characterised in that: the stationary ring is integral type with stationary seat
Connection or split type connection.
8. floating ring mechanical sealing member according to claim 6, it is characterised in that: the rotating ring is integral type with rotating seat
Connection or split type connection.
9. floating ring mechanical sealing member according to claim 1, it is characterised in that: the compensating element, is spring or metal
Bellows.
10. floating ring mechanical sealing member according to claim 1, it is characterised in that: the coefficient of friction of the sealing block is small
In the coefficient of friction of the sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820724473.XU CN208670065U (en) | 2018-05-16 | 2018-05-16 | Floating ring mechanical sealing member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820724473.XU CN208670065U (en) | 2018-05-16 | 2018-05-16 | Floating ring mechanical sealing member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208670065U true CN208670065U (en) | 2019-03-29 |
Family
ID=65822562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820724473.XU Expired - Fee Related CN208670065U (en) | 2018-05-16 | 2018-05-16 | Floating ring mechanical sealing member |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208670065U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102284742B1 (en) | 2020-03-26 | 2021-07-30 | 주식회사 카펙발레오 | Sealing-ringless Spline-Piston Assembly and Torque Converter Using the Same |
-
2018
- 2018-05-16 CN CN201820724473.XU patent/CN208670065U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102284742B1 (en) | 2020-03-26 | 2021-07-30 | 주식회사 카펙발레오 | Sealing-ringless Spline-Piston Assembly and Torque Converter Using the Same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190329 Termination date: 20210516 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |