CN206522521U - A kind of valve sealing device - Google Patents
A kind of valve sealing device Download PDFInfo
- Publication number
- CN206522521U CN206522521U CN201720072497.7U CN201720072497U CN206522521U CN 206522521 U CN206522521 U CN 206522521U CN 201720072497 U CN201720072497 U CN 201720072497U CN 206522521 U CN206522521 U CN 206522521U
- Authority
- CN
- China
- Prior art keywords
- valve
- gland
- valve rod
- sealing ring
- housing
- 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.)
- Expired - Fee Related
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- Details Of Valves (AREA)
Abstract
The utility model discloses a kind of valve sealing device, valve is not had leakage and occurs, the life-span that extension valve is used;In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is:A kind of valve sealing device, housing is sleeved on valve rod, gland and outside sealing ring are also sleeved on valve rod, and gland is located between the back of housing and outside sealing ring, gland is fixed on housing by connecting bolt, gland and outside sealing ring are welded and fixed together, graphite fibre circle rope sling is on valve rod, and between the graphite fibre externally-located sealing ring of circle rope and valve rod, interior packing seal circle longitudinal cross-section is in convex, interior packing seal snare is on valve rod, and compress graphite fibre circle rope from the gap insertion between outside sealing ring and valve rod, and the end of interior packing seal circle is bolted on outside sealing ring by tightening.
Description
Technical field
A kind of valve sealing device of the utility model, belongs to valve seal technical field, is mainly used in airlift valve group
Part.
Background technology
At present, in use, its sealing surface is washed away and corroded by medium for a long time many valves, and sealing pair
Between friction, working condition is quite severe, due to poor sealing performance or sealing life is short and the fluid leakage that produces, can be made
Into environmental pollution and economic loss, increase accident probability, hidden danger is brought to safety in production operation.
Utility model content
The utility model overcomes the deficiency of prior art presence there is provided a kind of valve sealing device, makes valve will not
There is leakage to occur, the life-span that extension valve is used.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is:A kind of valve sealing device, including
Valve rod, housing, gland, outside sealing ring, interior packing seal circle and graphite fibre circle rope, the housing are sleeved on valve rod
On, the gland and outside sealing ring are also sleeved on valve rod, and the gland is located at the back and outside of housing
Between sealing ring, the gland is fixed on housing by connecting bolt, the gland and outside sealing ring welding
It is fixed together, the graphite fibre circle rope sling is on valve rod, and the graphite fibre externally-located sealing ring of circle rope and valve
Between bar, the interior packing seal circle longitudinal cross-section is in convex, and the interior packing seal snare is mounted on valve rod, and close from outside
Between seal and valve rod gap insertion by graphite fibre circle rope compress, and the interior packing seal circle end by tightening spiral shell
Bolt is fixed on outside sealing ring.
Fluid sealant is provided between the fiberglass packing and housing.
Graphite fibre circle rope is pressed on gland by the interior packing seal circle.
The fluid sealant is 588RTV silicone.
The utility model has an advantageous effect in that compared with prior art:Graphite fibre circle rope is through interior in the utility model
Packing seal circle is compressed axially, and when valve rod has relative motion with graphite fibre circle rope, because graphite fibre justifies the plasticity of rope, is made
It produces radial load, and is in close contact with axle, so that sealing function can be played, when valve rod is moved back and forth, and does not allow in valve
Medium is leaked with stem movement, graphite fibre circle rope, is mainly used in high temperature, high pressure, the sealing of corrosion-resistant medium lower valve, is made
Valve, which does not have leakage, to be occurred, the life-span that extension valve is used.
Brief description of the drawings
The utility model is described further below in conjunction with the accompanying drawings.
Fig. 1 is structural representation of the present utility model.
In figure:1 it is valve rod, 2 be housing, 3 be gland, 4 be outside sealing ring, 5 be graphite fibre circle rope, 6 is stone
Black fiber circle rope, 7 be connecting bolt, 8 for tighten bolt, 9 be fluid sealant, 10 be fiberglass packing.
Embodiment
As shown in figure 1, a kind of valve sealing device of the utility model, including it is valve rod 1, housing 2, gland 3, outside close
Seal 4, interior packing seal circle 5 and graphite fibre circle rope 6, the housing 2 is sleeved on valve rod 1, the gland 3 and outside
Sealing ring 4 is also sleeved on valve rod 1, and the gland 3 is located between the back of housing 2 and outside sealing ring 4, described to fill out
Material gland 3 is fixed on housing 2 by connecting bolt 7, and the gland 3 and outside sealing ring 4 are welded and fixed together, institute
Graphite fibre circle rope 6 is stated to be sleeved on valve rod 1, and between graphite fibre circle 6 externally-located sealing rings 4 and valve rod 1 of rope, institute
The interior longitudinal cross-section of packing seal circle 5 is stated in convex, the interior packing seal circle 5 is sleeved on valve rod 1, and from outside sealing ring 4
Between valve rod 1 gap insertion by graphite fibre circle rope 6 compress, and the interior packing seal circle 5 end by tightening spiral shell
Bolt 8 is fixed on outside sealing ring 4.
Fluid sealant 9 is provided between the fiberglass packing 10 and housing 2.
Graphite fibre circle rope 6 is pressed on gland 3 by the interior packing seal circle 5.
The fluid sealant 9 is 588RTV silicone.
Graphite fibre circle rope 6 is compressed axially through interior packing seal circle 5 in the utility model, when valve rod 1 and graphite fibre circle
When rope 6 has relative motion, because graphite fibre justifies the plasticity of rope 6, it is produced radial load, and be in close contact with axle, so that all
Sealing function can be played, when valve rod 1 is moved back and forth, does not allow medium in valve to move and leak with valve rod 1, graphite fibre circle rope
6, it is mainly used in high temperature, high pressure, the sealing of corrosion-resistant medium lower valve, valve is not had leakage and occur, extension valve is used
Life-span.
Fiberglass packing 10 in the utility model, with non-ignitable, insulation, anticorrosive, good compression resilience, play guarantor
Warm, heat-insulated, insulation, heat-resisting function.
588RTV silicone sealants 9, are used in static seal in the utility model, are generally termed hydraulic seal, are to utilize liquid
Adhesiveness, mobility and the monomolecular film effect of state fluid sealant(It is bigger that thinner film replys tendency naturally), under appropriate pressures,
It is set equally to be worked as packing ring, so the fluid sealant used, also referred to as liquid gasket, more than 300 DEG C of high temperature resistant, do not flow
Drop down, pad can be replaced when using, it is quick detachable during maintenance.
Seal inner packing seal circle 5 in the utility model to compress filler to realize from outside, in interior packing seal
Circle 5 is compressed under responsive to axial force, is produced between graphite fibre circle rope 6 and valve rod 1 and is radially contacted with pressure, makes each circle filler can
Sealing function is played, so as to form expansion-convergent contour leakage path.
Each part Action Specification of the present utility model:
(1)Fiberglass packing, for playing insulation, heat-insulated, sealed effect to the medium on the inside of valve;
(2)Gland, for being connected with housing;
(3)Outside sealing ring, for being welded with gland, and with interior packing seal circle bolt connection.
(4)Interior packing seal circle, under responsive to axial force, producing and radially connecing between graphite fibre circle rope and valve rod
Touch pressure.
(5)Graphite fibre circle rope, for the sealing of valve, self-lubricating, intensity are high, it is adaptable to HTHP.
(6)Valve rod, for being driven, Shang Jie executing agencies or handle, the movement of band movable valve plug or rotation directly below, with reality
Existing valve switch or adjustment effect.
(7)Housing, for storing gas medium.
(8)588RTV silicone sealants, the sealing for faying faces such as housings.
Embodiment of the present utility model is explained in detail above in conjunction with accompanying drawing, but the utility model is not limited to
Embodiment is stated, in the knowledge that those of ordinary skill in the art possess, the utility model objective can also not departed from
On the premise of various changes can be made.
Claims (5)
1. a kind of valve sealing device, it is characterised in that:Including valve rod(1), housing(2), gland(3), outside sealing ring
(4), interior packing seal circle(5)Justify with graphite fibre and restrict(6), the housing(2)It is sleeved on valve rod(1)On, the gland
(3)With outside sealing ring(4)Also it is sleeved on valve rod(1)On, and the gland(3)Positioned at housing(2)Back and outside
Sealing ring(4)Between, the gland(3)Pass through connecting bolt(7)It is fixed on housing(2)On, the gland(3)With
Outside sealing ring(4)It is welded and fixed together, the graphite fibre circle rope(6)It is sleeved on valve rod(1)On, and the graphite fibre
Circle rope(6)Externally-located sealing ring(4)And valve rod(1)Between, the interior packing seal circle(5)Longitudinal cross-section is in convex, described
Interior packing seal circle(5)It is sleeved on valve rod(1)On, and from outside sealing ring(4)And valve rod(1)Between gap insertion by graphite
Fiber circle rope(6)Compress, and the interior packing seal circle(5)End by tightening bolt(8)It is fixed on outside sealing ring(4)
On.
2. a kind of valve sealing device according to claim 1, it is characterised in that:The housing(2)And gland(3)
Between be provided with fiberglass packing(10), the fiberglass packing(10)Filled gland(3)Pass through connecting bolt after compression(7)
It is fixed on housing(2)On.
3. a kind of valve sealing device according to claim 2, it is characterised in that:The fiberglass packing(10)And housing
(2)Between be provided with fluid sealant(9).
4. a kind of valve sealing device according to claim 3, it is characterised in that:The interior packing seal circle(5)By stone
Black fiber circle rope(6)It is pressed on gland(3)On.
5. a kind of valve sealing device according to claim 3, it is characterised in that:The fluid sealant(9)For 588RTV silicon
Ketone.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201720072497.7U CN206522521U (en) | 2017-01-20 | 2017-01-20 | A kind of valve sealing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201720072497.7U CN206522521U (en) | 2017-01-20 | 2017-01-20 | A kind of valve sealing device |
Publications (1)
Publication Number | Publication Date |
---|---|
CN206522521U true CN206522521U (en) | 2017-09-26 |
Family
ID=59891038
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201720072497.7U Expired - Fee Related CN206522521U (en) | 2017-01-20 | 2017-01-20 | A kind of valve sealing device |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN206522521U (en) |
-
2017
- 2017-01-20 CN CN201720072497.7U patent/CN206522521U/en not_active Expired - Fee Related
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170926 Termination date: 20190120 |
|
CF01 | Termination of patent right due to non-payment of annual fee |