CN206522521U - A kind of valve sealing device - Google Patents

A kind of valve sealing device Download PDF

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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
Application number
CN201720072497.7U
Other languages
Chinese (zh)
Inventor
常品品
陈东升
王擎宇
任寅卉
李栋平
李志军
孟瑞宏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANXI ALEX ENVIRONMENTAL PROTECTION TECHNIQUE CO Ltd
Original Assignee
SHANXI ALEX ENVIRONMENTAL PROTECTION TECHNIQUE CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SHANXI ALEX ENVIRONMENTAL PROTECTION TECHNIQUE CO Ltd filed Critical SHANXI ALEX ENVIRONMENTAL PROTECTION TECHNIQUE CO Ltd
Priority to CN201720072497.7U priority Critical patent/CN206522521U/en
Application granted granted Critical
Publication of CN206522521U publication Critical patent/CN206522521U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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

A kind of valve sealing device
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.
CN201720072497.7U 2017-01-20 2017-01-20 A kind of valve sealing device Expired - Fee Related CN206522521U (en)

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)

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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