CN108547952A - Labyrinth type end face mechanical sealing device - Google Patents
Labyrinth type end face mechanical sealing device Download PDFInfo
- Publication number
- CN108547952A CN108547952A CN201810466657.5A CN201810466657A CN108547952A CN 108547952 A CN108547952 A CN 108547952A CN 201810466657 A CN201810466657 A CN 201810466657A CN 108547952 A CN108547952 A CN 108547952A
- Authority
- CN
- China
- Prior art keywords
- ring
- face
- stationary
- rotating
- maze trough
- 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.)
- Pending
Links
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
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
- F16J15/3436—Pressing means
- F16J15/3452—Pressing means the pressing force resulting from the action of a spring
-
- 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
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
- F16J15/36—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member connected by a diaphragm or bellow to the other member
- F16J15/363—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member connected by a diaphragm or bellow to the other member the diaphragm or bellow being made of metal
-
- 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
- F16J15/44—Free-space packings
- F16J15/447—Labyrinth packings
Abstract
The invention discloses a kind of labyrinth type end face mechanical sealing devices, including mounting base, compensating element, stationary seat, rotating seat and sealing ring, mounting base is fixed on shell, one end of compensating element, is connect with mounting base, the other end of compensating element, is connect with stationary seat, one end of sealing ring is installed on stationary seat, and the other end of sealing ring is installed on rotating seat, and rotating seat is installed on shaft；Sealing ring includes stationary ring and rotating ring, and stationary ring is installed on stationary seat, and the end face of stationary ring and the end face of rotating ring fit, and rotating ring is installed on rotating seat.The sealing fluid of the present invention seals the pressure reduction of fluid when being flowed through from the maze trough of binding face, to improve the sealability of sealing device, avoid due to elastic element loses bullet and the case where cause to leak, increase the service life of sealing device.
Description
Technical field
The invention belongs to sealing device technical fields, more particularly to a kind of labyrinth type end face mechanical sealing device.
Background technology
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.
Currently used mechanical seal structure is as shown in Figure 1, main includes rotating seat A1, the rotating ring rotated with axis
A2, stationary ring A3, stationary seat A4 and compensating element, A5, the mechanism of mechanical seal are as follows：Rotating ring and rotating seat use tight fit, and one
It rises and rotates with the axis, and stationary ring and stationary seat are static elements, seal start of run, rotating ring and stationary ring fit, and centre has one layer
Micron-sized liquid film, liquid film are the layer fluid films that the medium in cavity is formed toward external leakage, when two sealing rings (rotating ring and quiet
Ring) between closing force (including the spring force of compensating element, pressure of the intracavitary medium to sealing ring) and sealing ring opening force
When (including the contact force of sealing ring, the pressure medium of fluid film) is equal, liquid film reaches stable, sealing device energy stable operation,
Sealing fluid film is stabilized at this time, and medium will not be toward external leakage.
But mechanical seal at present is there is also many problems, wherein leakage is performance of most directly failing, leakage it is direct
The reason is that the closing force between seal face is less than opening force, being that pressure medium is excessive in many cases causes to leak.
Invention content
The invention mainly solves the technical problem of providing a kind of labyrinth type end face mechanical sealing devices, seal fluid from patch
When the maze trough in conjunction face flows through, the pressure reduction of fluid is sealed, to improve the sealability of sealing device, is avoided due to bullet
Property element lose bullet and cause leakage the case where, increase the service life of sealing device.
In order to solve the above technical problems, one aspect of the present invention is：A kind of labyrinth type end surface mechanical sealing
Device, including mounting base, compensating element, stationary seat, rotating seat and sealing ring, the mounting base are fixed on shell, the compensation
One end of element is connect with the mounting base, and the other end of the compensating element, is connect with the stationary seat, the sealing ring
One end is installed on the stationary seat, and the other end of the sealing ring is installed on the rotating seat, and the rotating seat is installed on shaft；
The sealing ring includes stationary ring and rotating ring, and the stationary ring is installed on the stationary seat, the end face of the stationary ring and institute
The end face for stating rotating ring fits, and the rotating ring is installed on the rotating seat；
The face that the stationary ring and the rotating ring fit is defined as binding face, the stationary ring close to the end face of binding face and
The rotating ring is equipped at least one maze trough that is inwardly recessed of circle close at least one end face of binding face, the maze trough and described
Mechanically-sealing apparatus is coaxially disposed.
It further says, forms a circle labyrinth protrusion, several labyrinth protrusion distance patches between the adjacent maze trough
The distance in conjunction face is gradually increased by the inner circumferential of the outer circumferential direction sealing ring of the sealing ring.
It further says, forms a circle labyrinth protrusion, several labyrinth protrusion distance patches between the adjacent maze trough
The distance in conjunction face gradually decreases after gradually being increased by the inner circumferential of the outer circumferential direction sealing ring of the sealing ring.
It further says, the maze trough of the stationary ring is corresponded and is connected to the maze trough of the rotating ring.
It further says, one is equipped in the maze trough of the rotating ring and encloses the flange collar to match with the maze trough of the stationary ring,
Gap is equipped between the flange collar and the maze trough of the stationary ring.
It further says, one is equipped in the maze trough of the stationary ring and encloses the flange collar to match with the maze trough of the rotating ring,
Gap is equipped between the flange collar and the maze trough of the rotating ring.
It further says, the stationary seat and the stationary ring are integrally formed part.
It further says, the rotating seat and the rotating ring are integrally formed part.
It further says, the compensating element, is spring or metal bellows.
Beneficial effects of the present invention at least have the following：
The stationary ring of the present invention is equipped at least one close to the end face of binding face and rotating ring close at least one end face of binding face
The maze trough being inwardly recessed is enclosed, when sealing fluid is flowed through from the maze trough of binding face, sealing the pressure of fluid can reduce, to
The sealability for improving sealing device, avoid due to elastic element lose bullet and cause leakage the case where, increase sealing device
Service life.
Form a circle labyrinth protrusion between the adjacent maze trough of the present invention, the distances of several labyrinth protrusion distance binding faces by
The inner circumferential of the outer circumferential sealing ring of sealing ring gradually increases, after maze trough of the sealing ring close to periphery has been worn, by paraxial
The maze trough of the heart still carries out decompression sealing to sealing fluid, and such structure design, greatly increase sealing device uses the longevity
Life；
Form a circle labyrinth protrusion between the adjacent maze trough of the present invention, the distances of several labyrinth protrusion distance binding faces by
The inner circumferential of the outer circumferential sealing ring of sealing ring gradually decreases after gradually increasing, and after a certain maze trough is worn, passes through other labyrinths
Slot carries out decompression sealing to sealing fluid；
The maze trough of stationary ring of the present invention is corresponded and is connected to the maze trough of rotating ring, the maze trough of stationary ring or rotating ring
Flange collar is equipped in maze trough so that the distance that sealing fluid flows in maze trough becomes longer, and antihypertensive effect becomes apparent from, to
It ensure that the sealing performance of sealing device.
Description of the drawings
Fig. 1 is the structural schematic diagram of the prior art of the present invention；
Fig. 2 is the structural schematic diagram of the embodiment of the present invention one；
Fig. 3 is the structural schematic diagram of the embodiment of the present invention two；
Fig. 4 is the structural schematic diagram of the embodiment of the present invention three；
Fig. 5 is the structural schematic diagram of the embodiment of the present invention four；
Each section label is as follows in attached drawing：
Mounting base 1, compensating element, 2, stationary seat 3, stationary ring 4, rotating seat 5, rotating ring 6, maze trough 7, labyrinth protrusion 8 and flange collar
9。
Specific implementation mode
The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
Embodiment one：A kind of labyrinth type end face mechanical sealing device, as shown in Fig. 2, including mounting base 1, compensating element, 2,
Stationary seat 3, rotating seat 5 and sealing ring, the mounting base 1 are fixed on shell, one end of the compensating element, 2 and the mounting base
1 connection, the other end of the compensating element, 2 are connect with the stationary seat 3, and one end of the sealing ring is installed on the stationary seat
3, the other end of the sealing ring is installed on the rotating seat 5, and the rotating seat 5 is installed on shaft；
The sealing ring includes stationary ring 4 and rotating ring 6, and the stationary ring 4 is installed on the stationary seat 3, the end face of the stationary ring 4
It fits with the end face of the rotating ring 6, the rotating ring 6 is installed on the rotating seat 5；
The face that the stationary ring 4 and the rotating ring 6 fit is defined as binding face, the stationary ring 4 is close to the end of binding face
Face and the rotating ring 6 are equipped with the maze trough 7 that at least one circle is inwardly recessed, the maze trough close at least one end face of binding face
7 and the mechanically-sealing apparatus coaxial arrangement.
The stationary seat 3 and the stationary ring 4 are integrally formed part.
The rotating seat 5 and the rotating ring 6 are integrally formed part.
The compensating element, 2 is spring or metal bellows.
Embodiment two：The present embodiment and the structure of embodiment one are essentially identical, institute the difference is that, as shown in figure 3, phase
A circle labyrinth protrusion 8 is formed between the adjacent maze trough 7, distance of several labyrinth protrusions 8 apart from binding face is by described close
The inner circumferential of the outer circumferential direction sealing ring of seal ring gradually increases.
Embodiment three：The present embodiment with it is essentially identical with the structure of embodiment one, institute the difference is that, as shown in figure 4,
A circle labyrinth protrusion 8 is formed between the adjacent maze trough 7, distance of several labyrinth protrusions 8 apart from binding face is by described
The inner circumferential of the outer circumferential direction sealing ring of sealing ring gradually decreases after gradually increasing.
Example IV：The present embodiment with it is essentially identical with the structure of embodiment one, institute the difference is that, as shown in figure 5,
The maze trough 7 of the stationary ring 4 is corresponded and is connected to the maze trough 7 of the rotating ring 6.
It is equipped with one in the maze trough 7 of the rotating ring 6 and encloses the flange collar 9 to match with the maze trough 7 of the stationary ring 4, it is described convex
Gap is equipped between circle 9 and the maze trough 7 of the stationary ring 4.
It is equipped with one in the maze trough 7 of the stationary ring 4 and encloses the flange collar 9 to match with the maze trough 7 of the rotating ring 6, it is described convex
Gap is equipped between circle 9 and the maze trough 7 of the rotating ring 6.
Working principle of the present invention is as follows：Stationary ring close to the end face of binding face and rotating ring close to the end face of binding face at least it
One is equipped with the maze trough that at least one circle is inwardly recessed, and when sealing fluid is flowed through from the maze trough of binding face, seals the pressure of fluid
Power can reduce, to improve the sealability of sealing device, avoid due to elastic element lose bullet and cause leakage the case where, increase
Encrypt the service life of seal apparatus.
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 transformation 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 (9)
1. a kind of labyrinth type end face mechanical sealing device, it is characterised in that：Including mounting base (1), compensating element, (2), stationary seat
(3), rotating seat (5) and sealing ring, the mounting base are fixed on shell, and one end of the compensating element, connects with the mounting base
It connects, the other end of the compensating element, is connect with the stationary seat, and one end of the sealing ring is installed on the stationary seat, described
The other end of sealing ring is installed on the rotating seat, and the rotating seat is installed on shaft；
The sealing ring includes stationary ring (4) and rotating ring (6), and the stationary ring is installed on the stationary seat, the end face of the stationary ring and
The end face of the rotating ring fits, and the rotating ring is installed on the rotating seat；
The face that the stationary ring and the rotating ring fit is defined as binding face, the stationary ring is close to the end face of binding face and described
Rotating ring is equipped at least one maze trough (7) that is inwardly recessed of circle close at least one end face of binding face, the maze trough and described
Mechanically-sealing apparatus is coaxially disposed.
2. labyrinth type end face mechanical sealing device according to claim 1, it is characterised in that：Between the adjacent maze trough
Form that a circle labyrinth is raised (8), described in the outer circumferential direction of the distances of several labyrinth protrusion distance binding faces by the sealing ring
The inner circumferential of sealing ring gradually increases.
3. labyrinth type end face mechanical sealing device according to claim 1, it is characterised in that：Between the adjacent maze trough
Form a circle labyrinth protrusion, the distances of several labyrinth protrusion distance binding faces by the sealing ring the sealing of outer circumferential direction
The inner circumferential of ring gradually decreases after gradually increasing.
4. labyrinth type end face mechanical sealing device according to claim 1, it is characterised in that：The maze trough of the stationary ring and
The maze trough of the rotating ring is corresponded and is connected to.
5. labyrinth type end face mechanical sealing device according to claim 4, it is characterised in that：In the maze trough of the rotating ring
The flange collar (9) that maze trough equipped with a circle and the stationary ring matches, is equipped between the flange collar and the maze trough of the stationary ring
Gap.
6. labyrinth type end face mechanical sealing device according to claim 4, it is characterised in that：In the maze trough of the stationary ring
The flange collar that maze trough equipped with a circle and the rotating ring matches, between being equipped between the flange collar and the maze trough of the rotating ring
Gap.
7. labyrinth type end face mechanical sealing device according to claim 1, it is characterised in that：The stationary seat and described quiet
Ring is integrally formed part.
8. labyrinth type end face mechanical sealing device according to claim 1, it is characterised in that：The rotating seat and described dynamic
Ring is integrally formed part.
9. labyrinth type end face mechanical sealing device according to claim 1, it is characterised in that：The compensating element, is spring
Or metal bellows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810466657.5A CN108547952A (en) | 2018-05-16 | 2018-05-16 | Labyrinth type end face mechanical sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810466657.5A CN108547952A (en) | 2018-05-16 | 2018-05-16 | Labyrinth type end face mechanical sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108547952A true CN108547952A (en) | 2018-09-18 |
Family
ID=63495053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810466657.5A Pending CN108547952A (en) | 2018-05-16 | 2018-05-16 | Labyrinth type end face mechanical sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108547952A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112096876A (en) * | 2020-09-11 | 2020-12-18 | 东台市光明机械密封有限公司 | Corrosion-resistant container type mechanical seal and working method thereof |
| CN113669458A (en) * | 2021-08-19 | 2021-11-19 | 江苏海洋大学 | Ocean drilling platform sealing device |
| CN114060523A (en) * | 2021-11-10 | 2022-02-18 | 浙江环誉泵业科技有限公司 | Step mechanical seal with compact structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2062770U (en) * | 1990-03-17 | 1990-09-26 | 杭州塑料化工一厂 | Sealing apparatus for end face |
| CN1058835A (en) * | 1990-08-07 | 1992-02-19 | 丁崇光 | High-speed curved road machinery seal method and device |
| CN2183460Y (en) * | 1994-04-07 | 1994-11-23 | 刘星海 | Moveable centrifugal boost pump |
| CN103557334A (en) * | 2013-11-14 | 2014-02-05 | 江苏大学 | Multiple-end face combined type mechanical seal for realizing zero leakage and non-contact |
| CN204083241U (en) * | 2014-09-18 | 2015-01-07 | 自贡蜜蜂牌机械密封有限责任公司 | Mechanical seal device |
| CN205155160U (en) * | 2015-12-02 | 2016-04-13 | 长安大学 | Axle head multiaspect seal structure of vibration mixer |
-
2018
- 2018-05-16 CN CN201810466657.5A patent/CN108547952A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2062770U (en) * | 1990-03-17 | 1990-09-26 | 杭州塑料化工一厂 | Sealing apparatus for end face |
| CN1058835A (en) * | 1990-08-07 | 1992-02-19 | 丁崇光 | High-speed curved road machinery seal method and device |
| CN2183460Y (en) * | 1994-04-07 | 1994-11-23 | 刘星海 | Moveable centrifugal boost pump |
| CN103557334A (en) * | 2013-11-14 | 2014-02-05 | 江苏大学 | Multiple-end face combined type mechanical seal for realizing zero leakage and non-contact |
| CN204083241U (en) * | 2014-09-18 | 2015-01-07 | 自贡蜜蜂牌机械密封有限责任公司 | Mechanical seal device |
| CN205155160U (en) * | 2015-12-02 | 2016-04-13 | 长安大学 | Axle head multiaspect seal structure of vibration mixer |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112096876A (en) * | 2020-09-11 | 2020-12-18 | 东台市光明机械密封有限公司 | Corrosion-resistant container type mechanical seal and working method thereof |
| CN112096876B (en) * | 2020-09-11 | 2022-11-04 | 东台市光明机械密封有限公司 | Corrosion-resistant container type mechanical seal and working method thereof |
| CN113669458A (en) * | 2021-08-19 | 2021-11-19 | 江苏海洋大学 | Ocean drilling platform sealing device |
| CN114060523A (en) * | 2021-11-10 | 2022-02-18 | 浙江环誉泵业科技有限公司 | Step mechanical seal with compact structure |
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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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180918 |
|
| RJ01 | Rejection of invention patent application after publication |