CN209540042U - Mechanical seal slides auxiliary seal ring baffle ring - Google Patents
Mechanical seal slides auxiliary seal ring baffle ring Download PDFInfo
- Publication number
- CN209540042U CN209540042U CN201822141664.6U CN201822141664U CN209540042U CN 209540042 U CN209540042 U CN 209540042U CN 201822141664 U CN201822141664 U CN 201822141664U CN 209540042 U CN209540042 U CN 209540042U
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- ring
- baffle ring
- groove
- uniformly distributed
- baffle
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Abstract
The utility model mechanical seal slides auxiliary seal ring baffle ring, baffle ring is made of polytetrafluoroethylene material, it is uniformly distributed on the periphery (11) of circular ring shape baffle ring (1) and offers several centripetal grooves (12), it is uniformly distributed on the inner headed face (13) of baffle ring (1) and offers several centripetal grooves (14), in the heated generation thermal expansion deformation of worst hot case baffle ring, the groove (12 of baffle ring, 14) absorbing thermal expansion deflection, to avoid and mitigate the influence thermally expanded to baffle ring inside and outside circle size, ensure that baffle ring keeps small―gap suture slip cooperating relationship in sealing ring mounting groove in worst hot case.
Description
Technical field
The utility model relates to the sealing ring baffle rings that cooperation sliding auxiliary seal ring uses in mechanical seal.
Background technique
Under high temperature, high pressure operating condition mechanical seal whether rotating ring or stationary ring as compensation ring, compensation gyration ring with
Axle sleeve sliding is between face or offering sealing ring mounting groove between compensation stationary ring and gland sliding are with face and be mounted on the sealing ring
Sliding auxiliary seal ring in mounting groove, sliding auxiliary seal ring is generally O-shaped rubber ring, especially in high temperature, high pressure operating condition
When, for prevent seal cavity pressure it is higher when sliding auxiliary seal ring squeezed out from sealing ring mounting groove gap or severely deformed,
Sliding auxiliary seal ring damage is caused, sliding baffle ring is equipped in sealing ring mounting groove, which is generally polytetrafluoroethylene (PTFE) material
Annulus made of expecting.
Under worst hot case, since polytetrafluoroethylene material linear expansion coefficient is larger, it may occur that dilatancy, baffle ring is close
The gap that is slidably matched in sealing groove cannot reliably guarantee, be easy to produce the inner ring surface or outer ring surface and sealing ring mounting groove of baffle ring
Caton phenomenon occurs for inner ring surface or outer ring surface, keeps the sliding of O shape sliding auxiliary seal ring less able, or even makes to cause O shape sliding
It moves auxiliary seal ring and loses sliding ability, influence mechanical sealing performance and service life.
Utility model content
The purpose of this utility model is to improve in view of the above shortcomings of the prior art, provides a kind of machinery resistant to high temperature
Sealing sliding auxiliary seal ring baffle ring.
The utility model mechanical seal slides auxiliary seal ring baffle ring, and circular ring shape baffle ring 1 is made of polytetrafluoroethylene material,
It is uniformly distributed on the periphery 11 of circular ring shape baffle ring 1 and offers the centripetal groove 12 of several outer circles, and in the inner headed face of baffle ring 1 13
On be uniformly distributed and offer the centripetal groove 14 of several inner circles, it is described be uniformly distributed on baffle ring inner headed face open up it is several centripetal
Groove 14 and the centripetal groove 12 of several outer circles opened up that is uniformly distributed on baffle ring periphery circumferentially uniformly interlock
Distribution.
To offer the centripetal groove 12 of outer circle, inner circle centripetal due to being uniformly distributed on the inside and outside anchor ring of baffle ring for the utility model
Groove 14, worst hot case baffle ring is heated thermal expansion deformation occurs when, deflection can first to the centripetal groove 12 of the outer circle of baffle ring,
Deformation in the centripetal groove 14 of inner circle, i.e. the centripetal 14 absorbing thermal expansion deflection of groove of the centripetal groove 12 of the outer circle of baffle ring, inner circle, from
And the influence thermally expanded to baffle ring inside and outside circle size is avoided and mitigates, ensure that baffle ring is in sealing ring mounting groove in worst hot case
Keep small―gap suture slip cooperating relationship.
Detailed description of the invention
Fig. 1 is the utility model structure diagram.
Fig. 2 is mechanical seal sliding 1 use state diagram of auxiliary seal ring baffle ring.
Specific embodiment
The utility model mechanical seal slides auxiliary seal ring baffle ring, and circular ring shape baffle ring 1 is made of polytetrafluoroethylene material,
It is uniformly distributed on the periphery 11 of circular ring shape baffle ring 1 and offers the centripetal groove 12 of several outer circles, and in the inner headed face of baffle ring 1 13
On be uniformly distributed and offer the centripetal groove 14 of several inner circles, it is described that several inner circles opened up are uniformly distributed on baffle ring inner headed face
Centripetal groove 14 is uniformly distributed the centripetal groove 12 of several outer circles opened up circumferentially uniformly with described on baffle ring periphery
It is interspersed.
As shown in Fig. 2, it is coupled with gland 3 by seam allowance sliding as the stationary seat 2 of compensation ring, in stationary seat 2
On open up seal groove stopping table 21, on gland 3 correspondence open up seal groove stopping table 31, the seal groove seam allowance opened up on stationary seat
The seal groove stopping table 31 opened up corresponding on gland of platform 21 cooperatively forms seal groove, and it is auxiliary that the sliding of O shape is arranged in the seal groove
Help sealing ring 4 and baffle ring 1.Stationary seat 2 when mechanical seal operation as compensation ring can occur axially opposing with respect to gland 3
Displacement squeezes out or O shape under high pressure effect to prevent O shape from sliding auxiliary seal ring 4 from part gland 3 and 2 gap of stationary seat
It is excessive by gap extrusion deformation to slide auxiliary seal ring 4, the sliding sealing performance that O shape slides auxiliary seal ring 4 is influenced, in O
Shape slides 4 side of auxiliary seal ring and baffle ring 1 is arranged, and the inner headed face 13 of baffle ring 1 is matched with the sliding of seal groove stopping table 21 of stationary seat
Close gap very little, the periphery 11 of baffle ring 1 and the seal groove stopping table 31 of gland are slidably matched gap very little.
The utility model is distributed on 1 inside and outside circle of baffle ring opens up the centripetal groove 12 of outer circle, inner circle centripetal 14, can be effective
Reduce because of 1 inside/outside diameter size dilatancy of baffle ring caused by temperature height, to guarantee between small between baffle ring 1 and stationary seat 2 and gland 3
Gap slip cooperating relationship ensures that O shape sliding auxiliary seal ring 4 slides sealing performance and service life.
Claims (1)
1. mechanical seal slides auxiliary seal ring baffle ring, circular ring shape baffle ring (1) is made of polytetrafluoroethylene material, it is characterized in that:
It is uniformly distributed on the periphery (11) of circular ring shape baffle ring (1) and offers the centripetal groove of several outer circles (12), in the interior of baffle ring (1)
It is uniformly distributed on disc (13) and offers the centripetal groove of several inner circles (14), described be uniformly distributed on baffle ring inner headed face opens up
The centripetal groove of several inner circles (14) and described the centripetal groove of several outer circles opened up is uniformly distributed on baffle ring periphery
(12) it is circumferentially uniformly interspersed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822141664.6U CN209540042U (en) | 2018-12-20 | 2018-12-20 | Mechanical seal slides auxiliary seal ring baffle ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822141664.6U CN209540042U (en) | 2018-12-20 | 2018-12-20 | Mechanical seal slides auxiliary seal ring baffle ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209540042U true CN209540042U (en) | 2019-10-25 |
Family
ID=68264976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822141664.6U Active CN209540042U (en) | 2018-12-20 | 2018-12-20 | Mechanical seal slides auxiliary seal ring baffle ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209540042U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115451324A (en) * | 2022-09-14 | 2022-12-09 | 中材科技（苏州）有限公司 | Protective cover and high-pressure hydrogen storage cylinder |
-
2018
- 2018-12-20 CN CN201822141664.6U patent/CN209540042U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115451324A (en) * | 2022-09-14 | 2022-12-09 | 中材科技（苏州）有限公司 | Protective cover and high-pressure hydrogen storage cylinder |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |