CN205896371U - Anti inside and outside inspersed triple valve rods of granule nature medium move sealing device - Google Patents
Anti inside and outside inspersed triple valve rods of granule nature medium move sealing device Download PDFInfo
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- CN205896371U CN205896371U CN201620740960.6U CN201620740960U CN205896371U CN 205896371 U CN205896371 U CN 205896371U CN 201620740960 U CN201620740960 U CN 201620740960U CN 205896371 U CN205896371 U CN 205896371U
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Abstract
The utility model discloses an anti inside and outside inspersed triple valve rods of granule nature medium move sealing device belongs to valve technical field, the axle sleeve setting at the outer wall of valve rod upper segment, the bottom of axle sleeve be equipped with the dust ring, the top of axle sleeve be equipped with and pack one, pack two, filler no. 1, two crisscross settings of packing, wads no. 1, two the top of packing be equipped with O type state. Its structural design is reasonable, convenient operation, and inside granule nature medium prevention of seepage is gone into and is realized through the dust ring, the prevention of seepage of outside granule nature medium is gone into through the realization of O type circle, the valve rod primary seal adopts high -carbon packing and the shaping flexible graphite mode of combination in turn, portion inside and outside so all possesses dirt -proof function, has improved holistic performance.
Description
Technical field
This utility model be related to valve technology field and in particular to a kind of anti-inside and outside graininess medium penetrate into triple
Valve rod dynamic sealing device.
Background technology
Industrial valve is a kind of important accessory controlling media flow on industrial pipeline, can be used for controlling empty gas and water, steaming
The flowing of all kinds fluids such as vapour, various Korrosionsmedium, mud, oil product, liquid metal and radiating medium.
Video disc center and body central are deviateed in valve rod axle center simultaneously, and sealing pair is the butterfly valve referred to as three eccentricity butterfly of oblique vertebra
Valve；Three-eccentric-butterfly-valve, is widely used in metallurgy, electric power, petrochemical industry and plumbing and the municipal administration of medium temperature≤425 DEG C
On the industrial pipelines such as construction, make adjustments flow and carry cutout body use.
Containing under graininess mixture condition, the no multi-sealed design of common valve stem seal, refill only by one
Material group is sealed, and now, inside and outside portion graininess medium will penetrate between the rotation pair that filler and valve rod are formed, and destruction is filled out
The sealing property of material, increases the operation moment of torsion of valve, more severe patient, hard particles then can scratch stem surface, causes permanent
Destroy.
Content of the invention
For the problems referred to above, the technical problems to be solved in the utility model is to provide a kind of reasonable in design, operation side
Just, triple valve rod dynamic sealing devices that the anti-inside and outside graininess medium of good stability penetrates into.
Triple valve rod dynamic sealing devices that a kind of anti-inside and outside of the present utility model graininess medium penetrates into, it comprises valve
Body, butterfly plate, bottom, valve seat trim ring, butterfly plate trim ring, sealing ring, valve seat, valve rod；It also comprise dust ring, filler one, filler two,
O type circle, axle sleeve；Described axle sleeve is arranged on the outer wall of valve rod epimere；The bottom of described axle sleeve is provided with dust ring；Described axle
The top of set is provided with filler one, filler two；Described filler one, filler two are crisscross arranged；Described filler one, filler two upper
Side is provided with o type circle.
Described dust ring is a kind of high-carbon packing, and such packing has that hardness is high, intensity is high, anti-extrusion, scratch resistance etc.
Characteristic.
This utility model, when valve assembles, applies certain pretightning force by axle sleeve to it so as in stem surface
Form pretension than pressure.This dust ring is positioned close to runner accessory position, farthest prevents graininess medium from entering valve rod
It is ensured that filler group sealing pair operates under no graininess medium influence and between valve body and axle sleeve gap location and filler group sealing pair；
When product is using under outdoor or the particulate matter such as airborne dust, sand and dust environment in the majority, prevent the external world by setting up one o type circle
The infiltration of material, keeps the spatter property of filler group sealing pair local environment.
The valve rod primary seal form design of many fillers group, filler material also takes the different graphite of two kinds of quality,
One kind is high-carbon packing (see black shaded area in filler group), and one kind is molding soft graphite (see cross in filler group
Hand over line part again), with the mode of alternate combinations, the seal pressure being formed on valve rod side face is in filler group short transverse
Upper amplitude of variation is less, and for valve rod dynamic sealing angle, certainly needs the less filler combination of seal pressure amplitude of variation
Mode.Due to having taken rational filler combination mode it is ensured that the reliability of valve rod primary seal.
The beneficial effects of the utility model: its reasonable in design, easy to operate, the anti-infiltration of internal particle medium is passed through
Dust ring is realized；The anti-infiltration of external particle medium is realized by o type circle；Valve rod primary seal is soft with high-carbon packing and molding
The mode of property graphite alternate combinations；So inside and outside portion all possesses dust-proof function, improves overall performance.
Brief description:
For ease of explanation, this utility model is embodied as and accompanying drawing is described in detail by following.
Fig. 1 is structural representation of the present utility model；
Fig. 2 is a portion enlarged drawing in Fig. 1；
Fig. 3 is the schematic diagram of top binder in this utility model；
Fig. 4 is b portion enlarged drawing in Fig. 3；
In figure:
Valve body 1, butterfly plate 2, bottom 3, valve seat trim ring 4, butterfly plate trim ring 5, sealing ring 6, valve seat 7, valve rod 8；It also comprises to prevent
Konisphere 9, filler 1, filler 2 11, o type circle 12, axle sleeve 13.
Specific embodiment:
As shown in Figures 1 to 4, this specific embodiment technical scheme below: it comprises valve body 1, butterfly plate 2, bottom
3rd, valve seat trim ring 4, butterfly plate trim ring 5, sealing ring 6, valve seat 7, valve rod 8；It also comprises dust ring 9, filler 1, filler 2 11, o
Type circle 12, axle sleeve 13；Described axle sleeve 13 is arranged on the outer wall of valve rod 8 epimere；The bottom of described axle sleeve 13 is provided with dust ring
9；The top of described axle sleeve 13 is provided with filler 1, filler 2 11；Described filler 1, filler 2 11 are crisscross arranged；Institute
The filler 1 stated, the top of filler 2 11 are provided with o type circle 12.
Described dust ring 9 is a kind of high-carbon packing, and such packing has that hardness is high, intensity is high, anti-extrusion, scratch resistance etc.
Characteristic.
This specific embodiment, when valve assembles, applies certain pretightning force by axle sleeve 13 to it so as in valve rod
Surface forms pretension than pressure.This dust ring is positioned close to runner accessory position, farthest prevents graininess medium from entering
It is ensured that filler group sealing pair is under no graininess medium influence between valve rod and valve body and axle sleeve gap location and filler group sealing pair
Operating；When product is using under the outdoor or particulate matter such as airborne dust, sand and dust environment in the majority, by set up one o type circle 12
Prevent the infiltration of external substance, keep the spatter property of filler group sealing pair local environment.
The valve rod primary seal of this specific embodiment adopts the form design of many fillers group, and filler material also takes two germplasm
The different graphite in ground, one kind is high-carbon packing (see black shaded area in filler group), one kind be molding soft graphite (see
Cross wire part in filler group), with the mode of alternate combinations, the seal pressure being formed on valve rod side face is in filler group
In short transverse, amplitude of variation is less, and for valve rod dynamic sealing angle, certainly needs seal pressure amplitude of variation less
Filler combination mode.Due to having taken rational filler combination mode it is ensured that the reliability of valve rod primary seal.
The beneficial effect of this specific embodiment: its reasonable in design, easy to operate, the anti-infiltration of internal particle medium
Realized by dust ring；The anti-infiltration of external particle medium is realized by o type circle；Valve rod primary seal high-carbon packing and one-tenth
The mode of type soft graphite alternate combinations；So inside and outside portion all possesses dust-proof function, improves overall performance.
Of the present utility model ultimate principle and principal character and of the present utility model advantage have been shown and described above.
It should be understood by those skilled in the art that, this utility model is not restricted to the described embodiments, in above-described embodiment and description
Describe simply illustrates principle of the present utility model, on the premise of without departing from this utility model spirit and scope, this practicality
New also have various changes and modifications, these changes and improvements both fall within the range of claimed this utility model.This reality
With new claimed scope by appending claims and its equivalent thereof.
Claims (1)
1. triple valve rod dynamic sealing devices that a kind of anti-inside and outside graininess medium penetrates into, it comprises valve body, butterfly plate, bottom, valve
Seat trim ring, butterfly plate trim ring, sealing ring, valve seat, valve rod；It is characterized in that it also comprises dust ring, filler one, filler two, o type
Circle, axle sleeve；Described axle sleeve is arranged on the outer wall of valve rod epimere；The bottom of described axle sleeve is provided with dust ring；Described axle sleeve
Top be provided with filler one, filler two；Described filler one, filler two are crisscross arranged；Described filler one, the top of filler two
It is provided with o type circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620740960.6U CN205896371U (en) | 2016-07-14 | 2016-07-14 | Anti inside and outside inspersed triple valve rods of granule nature medium move sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620740960.6U CN205896371U (en) | 2016-07-14 | 2016-07-14 | Anti inside and outside inspersed triple valve rods of granule nature medium move sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205896371U true CN205896371U (en) | 2017-01-18 |
Family
ID=57772679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620740960.6U Active CN205896371U (en) | 2016-07-14 | 2016-07-14 | Anti inside and outside inspersed triple valve rods of granule nature medium move sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205896371U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112923058A (en) * | 2021-01-29 | 2021-06-08 | 中海油能源发展股份有限公司 | Combined oil-gas sealing device for low-rotating-speed equipment |
-
2016
- 2016-07-14 CN CN201620740960.6U patent/CN205896371U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112923058A (en) * | 2021-01-29 | 2021-06-08 | 中海油能源发展股份有限公司 | Combined oil-gas sealing device for low-rotating-speed equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |