CN209041603U - It is a kind of to seal auxiliary structure from the valve metal that pressure compensates using thin slice Light deformation - Google Patents
It is a kind of to seal auxiliary structure from the valve metal that pressure compensates using thin slice Light deformation Download PDFInfo
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- CN209041603U CN209041603U CN201821639332.4U CN201821639332U CN209041603U CN 209041603 U CN209041603 U CN 209041603U CN 201821639332 U CN201821639332 U CN 201821639332U CN 209041603 U CN209041603 U CN 209041603U
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- valve
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- valve seat
- sealing piece
- metal
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Abstract
The utility model, which provides, is related to a kind of valve metal sealing auxiliary structure using thin slice Light deformation from pressure compensation, including valve seat side seal face and valve disc side seal face, it is characterized in that being equipped with metal sealing piece between valve seat and valve disc, metal sealing piece is fixed on valve disc, one side and valve seat side seal face fit closely to form sealing pair, and another side is arranged between valve disc end face at its marginal position to be had the gap.Its main feature is that: structure is simple, the ability for the flexible deformation having using metal sealing piece and the effect of pressure medium, make metal sealing piece remain with the consistent shape in valve seat side seal face, fit closely between the two, gapless.Sealing auxiliary structure with automatic compensation function can guarantee that valve will not reduce sealing performance because ambient temperature conditions influence, and improve valve seal effect and reliability.
Description
Technical field
The utility model relates to a kind of valve metals to seal auxiliary structure, especially a kind of to press compensation certainly using thin slice Light deformation
Valve metal seal auxiliary structure.
Background technique
Pressure automatic valve such as check-valves, safety valve, pressure reducing valve, the usually contact between the valve disc and valve seat of valve
Face fits closely to form sealing pair.Currently, applying the pressure automatic valve in fields such as high temperature, superhigh temperature, low temperature, ultralow temperature more
Using metal sealing auxiliary structure.In use, metal-seated, which is acted upon by temperature changes, can generate micro-strain, this small change
Shape is primarily generated on the sealing surface of valve seat side, and valve seat more is embedded on valve body or is structure as a whole with valve body, due to valve body
Shape is mostly irregular body, and the dilatancy amount on valve body is also irregular, therefore is easy to cause valve seat side seal face to generate and sticks up
Song deformation.And valve disc is mostly regular shape, the dilatancy amount of valve disc is also relatively regular, even if therefore valve disc side sealing surface generate
Deformation is also not easy warpage.It is influenced by the buckling deformation of valve seat side seal face, the by-produced gap of the sealing of valve seat and valve disc causes close
Secondary sealing failure is sealed, the reliability of pressure automatic valve is reduced.
Summary of the invention
The purpose of this utility model is to provide a kind of valve metal sealing pair knots compensated using thin slice Light deformation from pressure
Structure ensures that pressure automatic valve still can be sealed reliably under the influence of expanding with heat and contract with cold deformation.
The technical solution of the utility model is: a kind of valve metal sealing pair compensated using thin slice Light deformation from pressure
Structure, including valve seat side seal face and valve disc side seal face, it is characterised in that metal sealing piece is equipped between valve seat and valve disc,
Metal sealing piece is fixed on valve disc, and one side and valve seat side seal face fit closely to form sealing pair, and another side is at it
It is arranged between valve disc end face at marginal position and has the gap.
The metal sealing piece is the foil of flexible deformability.
It is by valve that a kind of valve metal using thin slice Light deformation from pressure compensation provided by the utility model, which seals auxiliary structure,
It seat, valve disc and is constituted positioned at metal sealing piece between the two, metal sealing piece is the sheet metal for having certain elasticity, one side
Face and valve seat side seal face fit closely to form sealing pair, are provided with gap between valve disc end face at the marginal position of the other side.
The utility model has the ability of flexible deformation using metal sealing piece, in the effect of the pressure medium entered in gap, makes gold
The automatic benefit formed with the consistent shape of valve seat side seal face buckling deformation, metal sealing piece can be automatically generated by belonging to diaphragm seal
Repay, ensure that sealing pair fit closely, gapless, reach sealing effect.
The utility model is characterized in that: structure is simple, the ability and medium of the flexible deformation that metal sealing piece has are utilized
The effect of pressure, make metal sealing piece remain with the consistent shape in valve seat side seal face, fit closely between the two, continuously
Gap.Sealing auxiliary structure with automatic compensation function can guarantee that valve will not reduce leakproofness because ambient temperature conditions influence
Can, improve valve seal effect and reliability.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the partial enlargement diagram of Fig. 1.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing:
As shown in Figure 1, 2, it is a kind of using thin slice Light deformation from pressure compensation valve metal seal auxiliary structure, be by valve seat 2,
Valve disc 3 and positioned between the two metal sealing piece 5 constitute, metal sealing piece is the circular metal for having certain elastic deformability
Thin slice.Metal sealing piece 5 is mounted on valve disc 3, fixed by pressing plate 4, screw 6 at position in its center, and at its edge
Setting has the gap 7 between valve disc end face at position, and the sealing surface of metal sealing piece and valve seat side seal face are fitted tightly over one
It rises, forms sealing pair.The valve seat 2 of the present embodiment is embedded on valve body 1, this part-structure is identical as universal valve structure, valve disc
Other structures it is same as the prior art, repeat no more.Arrow direction represents pressure medium direction in figure.Valve is in use, such as
When fruit valve seat side seal face is influenced to generate buckling deformation by environment temperature, flexible deformation occurs therewith for metal sealing sector-meeting, and
Under pressure medium effect between valve disc and metal sealing piece in gap, it is close that metal sealing piece is fitted tightly over valve seat side always
On cover, ensures gapless between sealing pair, reach sealing effect.
Claims (2)
1. a kind of valve metal using thin slice Light deformation from pressure compensation seals auxiliary structure, including valve seat side seal face and valve disc side
Sealing surface, it is characterised in that metal sealing piece is equipped between valve seat and valve disc, metal sealing piece is fixed on valve disc, one side
Face and valve seat side seal face fit closely to form sealing pair, and another side is provided between valve disc end face at its marginal position
Gap.
2. a kind of valve metal using thin slice Light deformation from pressure compensation according to claim 1 seals auxiliary structure, special
Sign is that the metal sealing piece is the foil of flexible deformability.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821639332.4U CN209041603U (en) | 2018-10-10 | 2018-10-10 | It is a kind of to seal auxiliary structure from the valve metal that pressure compensates using thin slice Light deformation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821639332.4U CN209041603U (en) | 2018-10-10 | 2018-10-10 | It is a kind of to seal auxiliary structure from the valve metal that pressure compensates using thin slice Light deformation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209041603U true CN209041603U (en) | 2019-06-28 |
Family
ID=67035469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821639332.4U Active CN209041603U (en) | 2018-10-10 | 2018-10-10 | It is a kind of to seal auxiliary structure from the valve metal that pressure compensates using thin slice Light deformation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209041603U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109210213A (en) * | 2018-10-10 | 2019-01-15 | 大连船用阀门有限公司 | It is a kind of to seal auxiliary structure from the valve metal that pressure compensates using thin slice Light deformation |
| CN115467977A (en) * | 2021-06-10 | 2022-12-13 | 北京航天试验技术研究所 | Metal diaphragm sealing stop valve |
-
2018
- 2018-10-10 CN CN201821639332.4U patent/CN209041603U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109210213A (en) * | 2018-10-10 | 2019-01-15 | 大连船用阀门有限公司 | It is a kind of to seal auxiliary structure from the valve metal that pressure compensates using thin slice Light deformation |
| CN115467977A (en) * | 2021-06-10 | 2022-12-13 | 北京航天试验技术研究所 | Metal diaphragm sealing stop valve |
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