CN206754351U - A kind of resistance to 196 DEG C of cryogenic valve sealing rings of single-piston - Google Patents
A kind of resistance to 196 DEG C of cryogenic valve sealing rings of single-piston Download PDFInfo
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- CN206754351U CN206754351U CN201720443243.1U CN201720443243U CN206754351U CN 206754351 U CN206754351 U CN 206754351U CN 201720443243 U CN201720443243 U CN 201720443243U CN 206754351 U CN206754351 U CN 206754351U
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Abstract
The utility model discloses a kind of resistance to 196 DEG C of cryogenic valve sealing rings of single-piston, including H types spring, U-shaped tetrafluoro chuck and capsul, U-shaped tetrafluoro chuck is provided with the capsul, U-shaped annular groove is provided with the middle part of the U-shaped tetrafluoro chuck, the H types spring is arranged on inside U-shaped annular groove；The utility model is allowd to keep excellent sealing in low temperature environment, material is treated by four fluorine richness and by certain processing mode, preferable toughness, intensity hardness can also be kept under 196 °C of environment, is plastically deformed small, creep resisting ability.
Description
Technical field
The technical field of sealing ring is the utility model is related to, more particularly to a kind of resistance to -196 DEG C of cryogenic valves of single-piston are used
Sealing ring.
Background technology
In -196 °C of environmental working conditions, traditional seal is substantially all sealing incessantly, it is necessary to special under the operating mode
Material and special structural shape compress to make up deformation of the material under ultralow temperature.Current seal is under -196 °C of operating modes
Failure is substantially all, otherwise material is difficult not to live so low temperature, otherwise the improper pressure of unable to bearing of structural shape.
Utility model content
The purpose of this utility model is to provide a kind of single-piston resistance to -196 DEG C of cryogenic valves sealing ring, at -196 °C
Preferable toughness, intensity hardness can also be kept under environment, plastic deformation is small, and creep resisting ability is good.
To achieve these goals, the technical scheme in the invention for solving the technical problem is：It is a kind of single living
Sai Nai -196 DEG C of cryogenic valve sealing rings, including H types spring, U-shaped tetrafluoro chuck and capsul, it is characterised in that：It is described
U-shaped tetrafluoro chuck is provided with capsul, is provided with U-shaped annular groove in the middle part of the U-shaped tetrafluoro chuck, the H types spring is arranged on U
Inside type ring groove.
As the preferred embodiment of embodiment, the U-shaped tetrafluoro chuck includes the first lip and the second lip, first lip
Mouth and the second lip are located at U-shaped tetrafluoro chuck inner side and outer side respectively.
As the preferred embodiment of embodiment, first is respectively arranged with above the inner surface of first lip and the second lip
Broken line projection and the second broken line projection.
As the preferred embodiment of embodiment, the U-shaped spring includes the Flat belt of dentation, and the H types spring includes outer layer
Spring and internal layer spring, the outer layer spring and internal layer spring are fixed by connecting rod.
As the preferred embodiment of embodiment, the A/F of the U-shaped tetrafluoro chuck is less than the width of H type springs.
As the preferred embodiment of embodiment, the material of the capsul includes the component of following weight fraction：Polyfluorine rubber
100 parts of glue, 3 ~ 5 parts of magnesia, glue 16 ~ 21 parts of base carbon fibre, 25 ~ 35 parts, p of wollastonite, p- dibenzoyls paraquinonedioxime 0.5
~ 1.0 parts, 2 parts of benzoic t-butyl ester peroxide.
As the preferred embodiment of embodiment, the H types spring uses Ni-Cr series austenite low-temperature steels.
As the preferred embodiment of embodiment, the use minimum temperature of the capsul is -196 DEG C.
Because a kind of resistance to -196 DEG C of cryogenic valves of single-piston of the utility model employ above-mentioned technical side with sealing ring
Case, i.e., including H types spring, U-shaped tetrafluoro chuck and capsul, it is provided with U-shaped tetrafluoro chuck on the capsul, described U-shaped four
U-shaped annular groove is provided with the middle part of fluorine chuck, the H types spring is arranged on inside U-shaped annular groove, and the U-shaped tetrafluoro chuck includes first
Lip and the second lip, first lip and the second lip are located at U-shaped tetrafluoro chuck inner side and outer side, first lip respectively
The first broken line projection and the second broken line projection are respectively arranged with above the inner surface of mouth and the second lip, the H types spring includes
Outer layer spring and internal layer spring, the outer layer spring and internal layer spring are fixed by connecting rod, and the opening of the U-shaped tetrafluoro chuck is wide
Width of the degree less than H type springs；Allow the utility model to solve deformation compression of the material under ultralow temperature, and then effectively carry
The high service life and sealing effectiveness of sealing ring.In addition, the utility model synthesis employs the material of excellent performance so that this
Utility model is particularly suitable for use in ultralow temperature field.
Brief description of the drawings
Fig. 1 is sectional view of the present utility model.
Fig. 2 is H types spring structure schematic diagram of the present utility model.
Embodiment
As shown in Figure 1-2, the utility model discloses a kind of resistance to -196 DEG C of cryogenic valves sealing ring of single-piston, including
H types spring 1, U-shaped tetrafluoro chuck 6 and capsul 7, U-shaped tetrafluoro chuck 6, the U-shaped tetrafluoro folder are provided with the capsul 7
The middle part of set 6 is provided with U-shaped annular groove 8, and the H types spring 1 is arranged on inside U-shaped annular groove 8.
As the preferred embodiment of embodiment, the U-shaped tetrafluoro chuck 6 includes the first lip 2 and the second lip 4, and described
One lip 2 and the second lip 4 are located at the U-shaped inner side and outer side of tetrafluoro chuck 6 respectively.
As the preferred embodiment of embodiment, the is respectively arranged with above the inner surface of the lip 4 of the first lip 2 and second
One broken line projection 3 and the second broken line projection 5.
As the preferred embodiment of embodiment, the H types spring 1 includes outer layer spring 9 and internal layer spring 10, the outer layer bullet
Spring 9 and internal layer spring 10 are fixed by connecting rod 11.
As the preferred embodiment of embodiment, the A/F of the U-shaped tetrafluoro chuck 6 is less than the width of H types spring 1.
As the preferred embodiment of embodiment, the material of the capsul 7 includes the component of following weight fraction：Polyfluorine rubber
100 parts of glue, 3 ~ 5 parts of magnesia, glue 16 ~ 21 parts of base carbon fibre, 25 ~ 35 parts, p of wollastonite, p- dibenzoyls paraquinonedioxime 0.5
~ 1.0 parts, 2 parts of benzoic t-butyl ester peroxide.
As the preferred embodiment of embodiment, the H types spring 1 uses Ni-Cr series austenite low-temperature steels.
As the preferred embodiment of embodiment, the use minimum temperature of the capsul 7 is -196 DEG C.
During using the utility model, the utility model is arranged on the place to be sealed in single-piston, due to H type springs
Installed in U-shaped tetrafluoro chuck 6, the pressure of U-shaped tetrafluoro chuck 6 and the pretightning force of H type springs reach sealing effectiveness, and U-shaped four
The pressure of fluorine chuck 6 and H matrix shape spring pressures promote first lip 2 tightly to touch sealing surface, due to of the present utility model
Capsul 7 and U-shaped tetrafluoro chuck 6 employ low temperature resistivity can preferably tetrafluoro elastomeric material, and H types springs use
Ni-Cr series austenite low-temperature steels so that the new minimum temperature born is -196 DEG C.Thus, this is new in working range
Type all keeps excellent sealing effectiveness.
It is described above, only the utility model preferred embodiment, therefore the utility model implementation can not be limited successively
Scope, i.e., the equivalent changes and modifications made according to the utility model patent scope and description, it is new all should still to belong to this practicality
In the range of type covers.
Claims (8)
1. a kind of resistance to -196 DEG C of cryogenic valves sealing ring of single-piston, including H types spring, U-shaped tetrafluoro chuck and capsul, its
It is characterised by：U-shaped tetrafluoro chuck is provided with the capsul, U-shaped annular groove, the H are provided with the middle part of the U-shaped tetrafluoro chuck
Type spring is arranged on inside U-shaped annular groove.
A kind of 2. resistance to -196 DEG C of cryogenic valves sealing ring of single-piston as claimed in claim 1, it is characterised in that：The U
Type tetrafluoro chuck includes the first lip and the second lip, and first lip and the second lip are respectively in U-shaped tetrafluoro chuck
Side and outside.
A kind of 3. resistance to -196 DEG C of cryogenic valves sealing ring of single-piston as claimed in claim 2, it is characterised in that：Described
The first broken line projection and the second broken line projection are respectively arranged with above the inner surface of one lip and the second lip.
A kind of 4. resistance to -196 DEG C of cryogenic valves sealing ring of single-piston as claimed in claim 1, it is characterised in that：The H
Type spring includes outer layer spring and internal layer spring, and the outer layer spring and internal layer spring are fixed by connecting rod.
A kind of 5. resistance to -196 DEG C of cryogenic valves sealing ring of single-piston as claimed in claim 1, it is characterised in that：The U
The A/F of type tetrafluoro chuck is less than the width of H type springs.
A kind of 6. resistance to -196 DEG C of cryogenic valves sealing ring of single-piston as claimed in claim 1, it is characterised in that：It is described close
The material of capsule includes the component of following weight fraction：It polymerize 100 parts of fluorubber, 3 ~ 5 parts of magnesia, glues base carbon fibre 16 ~ 21
Part, 25 ~ 35 parts, p of wollastonite, 0.5 ~ 1.0 part of p- dibenzoyls paraquinonedioxime, 2 parts of benzoic t-butyl ester peroxide.
A kind of 7. resistance to -196 DEG C of cryogenic valves sealing ring of single-piston as claimed in claim 1, it is characterised in that：The H
Type spring uses Ni-Cr series austenite low-temperature steels.
A kind of 8. resistance to -196 DEG C of cryogenic valves sealing ring of single-piston as claimed in claim 1, it is characterised in that：It is described close
The use minimum temperature of capsule is -196 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720443243.1U CN206754351U (en) | 2017-04-25 | 2017-04-25 | A kind of resistance to 196 DEG C of cryogenic valve sealing rings of single-piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720443243.1U CN206754351U (en) | 2017-04-25 | 2017-04-25 | A kind of resistance to 196 DEG C of cryogenic valve sealing rings of single-piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206754351U true CN206754351U (en) | 2017-12-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720443243.1U Active CN206754351U (en) | 2017-04-25 | 2017-04-25 | A kind of resistance to 196 DEG C of cryogenic valve sealing rings of single-piston |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108561553A (en) * | 2018-06-29 | 2018-09-21 | 四川日机密封件股份有限公司 | A kind of sealing ring |
| CN111486235A (en) * | 2020-05-08 | 2020-08-04 | 凯氟隆（厦门）密封件有限公司 | Ultra-low temperature sealing structure for loading and unloading arm |
-
2017
- 2017-04-25 CN CN201720443243.1U patent/CN206754351U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108561553A (en) * | 2018-06-29 | 2018-09-21 | 四川日机密封件股份有限公司 | A kind of sealing ring |
| CN111486235A (en) * | 2020-05-08 | 2020-08-04 | 凯氟隆（厦门）密封件有限公司 | Ultra-low temperature sealing structure for loading and unloading arm |
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