CN205937946U - Two -way metal seal's of high temperature high pressure unsteady ball valve - Google Patents
Two -way metal seal's of high temperature high pressure unsteady ball valve Download PDFInfo
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- CN205937946U CN205937946U CN201620901090.6U CN201620901090U CN205937946U CN 205937946 U CN205937946 U CN 205937946U CN 201620901090 U CN201620901090 U CN 201620901090U CN 205937946 U CN205937946 U CN 205937946U
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Abstract
The utility model relates to a two -way metal seal's of high temperature high pressure unsteady ball valve, including valve body, spheroid and valve gap, the valve gap is provided with the medium access and engages in this profession with the medium, be provided with the intake side disk seat between corresponding medium access one side of valve gap and the spheroid, the corresponding medium of valve gap is engaged in this profession and is provided with the outlet side disk seat between one side and the spheroid, the outside position that the valve gap corresponds the intake side disk seat still is provided with " U " type circle and position circle, one side of " U " type circle with the intake side disk seat welds mutually, the opposite side of " U " type circle with the position circle welds mutually, relative " U " the type of position circle circle opposite side with the valve gap welds mutually. The utility model discloses technical scheme has the technological effect of the operation requirement that is applicable to high temperature high pressure two way seal.
Description
Technical field
This utility model is related to a kind of floating ball valve of high-pressure high-temperature two-way metal sealing.
Background technology
Floating ball valve for worst hot case needs to adopt shape metallic leak-proof structure.For metal sealing floating ball valve, in order to
Prevent stuck because of the expansion of parts under high temperature, it usually needs in the side valve seat of ball valve, spring, this valve seat are set behind
Can move axially in valve gap.In order to ensure valve seat can move, and there is good sealing and valve gap between, generally in valve seat
Setting flexible graphite sealing ring behind.Lost efficacy to prevent spring pressurized for a long time in use, usual metal sealing floats
Dynamic ball valve is all one-way sealing.However, some working condition requirement high-temperature high-pressure metal seal floating ball valves have two way seal work(
Can, therefore the metal seal ball valve of conventional design can not meet the use requirement of this kind of operating mode, and the present invention is precisely in order to solve to be somebody's turn to do
Technical barrier and design and develop.
Accompanying drawing 1 is the high-temperature metal seal floating ball valve of existing design, and 1 is valve body, and 2 is spheroid, and 3 is valve gap, and 4 is import
End valve seat, 5 is entrance point valve seat insert, and 6 is sealed pressing sleeve, and 7 is spring, and 8 is port of export valve seat, and 9 is that port of export valve seat is close
Seal.For worst hot case, valve seat insert generally adopts soft graphite.
The valve seat of existing design high-temperature metal seal floating ball valve and the sealing of valve gap are all using soft graphite.Outlet side valve
Seat and valve gap pass through clamping soft graphite and can reliably seal.And the sealing of inlet side valve seat and valve gap is simply by soft graphite
Lateral expansion to reach sealing, see accompanying drawing 2, therefore seal more difficult, when for high pressure operating mode, sealing more difficult.
In addition, when requiring inlet side valve seat to be used for sealing, the spring of inlet side can bear medium power, spring bears medium power for a long time to be held
Easily lost efficacy.The high-temperature metal seal floating ball valve of therefore conventional design is typically only used for one-way sealing, is not suitable for two-way close
Envelope.
Content of the invention
In view of the shortcomings of the prior art, the purpose of this utility model is to provide one kind to be applied to high-pressure high-temperature two-way
The floating ball valve of the use requirement of sealing.
For achieving the above object, this utility model provides following technical scheme, a kind of high-pressure high-temperature two-way metal sealing
Floating ball valve, including valve body, spheroid and valve gap, described valve gap is provided with medium access and is engaged in this profession with medium, described valve gap pair
Answer and between medium access side and spheroid, be provided with inlet side valve seat, the corresponding medium of described valve gap is engaged in this profession and set between side and spheroid
It is equipped with outlet side valve seat, the outer fix of the corresponding inlet side valve seat of described valve gap is additionally provided with " U " type circle and centring ring, described
The side of " U " type circle is welded with described inlet side valve seat phase, and the opposite side of " U " type circle is welded with described centring ring phase, described fixed
Position circle " U " type circle opposite side relatively is welded with described valve gap phase.
This utility model is further arranged to：Described inlet side valve seat is provided with boss, in normal use, described boss
Axis direction in inlet side valve seat leaves gap and valve gap between.
This utility model is further arranged to：Described outlet side valve seat is fixedly connected by pressing plate and screw with valve gap,
Described outlet side valve seat is sealed with valve gap direct metal.
By adopting technical solutions of the utility model, when needing inlet side valve base sealing, under pressure medium effect, enter
The boss of mouth side valve seat will note lean against on valve gap, acts on the huge pressure medium on inlet side valve seat and passes through boss by valve gap
Bear, " U " type circle is not subject to excessive medium power it is ensured that " U " type circle will not be subject to crushing under high pressure.Due to import side valve
All using being welded to connect it is ensured that medium will not be from inlet side valve seat and valve gap between seat, " U " type circle, centring ring and valve gap
Between gap location leakage.The ball valve of this structure design at high temperature will not be stuck because of the expansion of parts, and into and out of
Mouth both sides valve seat all can effectively seal at high temperature under high pressure, and therefore, the floating ball valve of this structure design is applied to High Temperature High Pressure
The use requirement of two way seal.
Below in conjunction with the accompanying drawings this utility model is further described.
Brief description
Fig. 1 is existing high-temperature metal seal floating ball valve structure chart；
Fig. 2 is the A portion enlarged drawing of Fig. 1；
Fig. 3 is this utility model example structure figure；
Fig. 4 is the B portion enlarged drawing of Fig. 3.
Specific embodiment
Referring to accompanying drawing 1 to accompanying drawing 4, the floating ball valve of high-pressure high-temperature two-way metal sealing disclosed in this utility model, including
Valve body 1, spheroid 2 and valve gap 3, described valve gap 3 is provided with medium access 301 and medium and engages in this profession 302, and described valve gap 3 is corresponding to be situated between
It is provided with inlet side valve seat 4, the corresponding medium of described valve gap 3 is engaged in this profession 302 sides and spheroid 2 between matter access 301 side and spheroid 2
Between be provided with outlet side valve seat 7, the outer fix of the corresponding inlet side valve seat 4 of described valve gap 3 be additionally provided with " U " type circle 5 with fixed
Position circle 6, the side of described " U " type circle 5 and described inlet side valve seat 4 mutually weld, the opposite side of " U " type circle 5 and described centring ring 6
Mutually weld, described centring ring 6 " U " type circle 5 opposite side relatively is mutually welded with described valve gap 3.
The present embodiment is further arranged to：Described inlet side valve seat 4 is provided with boss 401, in normal use, described convex
Between platform 401 and valve gap 3, the axis direction in inlet side valve seat 4 leaves gap 10.
The present embodiment is further arranged to：Described outlet side valve seat 7 and valve gap 3 pass through pressing plate 8 and screw 9 is fixing even
Connect, described outlet side valve seat 7 and valve gap 3 direct metal seal.
By adopting technical solutions of the utility model, when needing inlet side valve seat 4 sealing, under pressure medium effect,
The boss of inlet side valve seat 4 will note lean against on valve gap 3, and the huge pressure medium acting on inlet side valve seat 4 passes through boss
Born by valve gap 3, " U " type circle 5 is not subject to excessive medium power it is ensured that " U " type circle 5 will not be subject to crushing under high pressure.Due to
All using being welded to connect it is ensured that medium will not be from import between inlet side valve seat 4, " U " type circle 5, centring ring 6 and valve gap 3
Gap location leakage between side valve seat 4 and valve gap 3.The ball valve of this structure design at high temperature will not be because of the expansion of parts
Stuck, and import and export both sides valve seat all can effectively seal at high temperature under high pressure, therefore, the floating ball valve of this structure design
It is applied to the use requirement of high-pressure high-temperature two-way sealing.
Claims (3)
1. a kind of floating ball valve of high-pressure high-temperature two-way metal sealing, including valve body, spheroid and valve gap, described valve gap is provided with
Medium access and medium are engaged in this profession, and are provided with inlet side valve seat, described valve between the corresponding medium access side of described valve gap and spheroid
The corresponding medium of lid engage in this profession be provided with outlet side valve seat between side and spheroid it is characterised in that：Described valve gap corresponds to import side valve
The outer fix of seat is additionally provided with " U " type circle and centring ring, and the side of described " U " type circle is welded with described inlet side valve seat phase,
The opposite side of " U " type circle is welded with described centring ring phase, and described centring ring " U " type circle opposite side relatively is welded with described valve gap phase
Connect.
2. high-pressure high-temperature two-way metal sealing according to claim 1 floating ball valve it is characterised in that：Described inlet side
Valve seat is provided with boss, and in normal use, between described boss and valve gap, the axis direction in inlet side valve seat leaves gap.
3. high-pressure high-temperature two-way metal sealing according to claim 1 and 2 floating ball valve it is characterised in that：Described go out
Mouth side valve seat is fixedly connected by pressing plate and screw with valve gap, and described outlet side valve seat is sealed with valve gap direct metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620901090.6U CN205937946U (en) | 2016-08-17 | 2016-08-17 | Two -way metal seal's of high temperature high pressure unsteady ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620901090.6U CN205937946U (en) | 2016-08-17 | 2016-08-17 | Two -way metal seal's of high temperature high pressure unsteady ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205937946U true CN205937946U (en) | 2017-02-08 |
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ID=57919549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620901090.6U Active CN205937946U (en) | 2016-08-17 | 2016-08-17 | Two -way metal seal's of high temperature high pressure unsteady ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205937946U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106168298A (en) * | 2016-08-17 | 2016-11-30 | 超达阀门集团股份有限公司 | A kind of floating ball valve of high-pressure high-temperature two-way metal sealing |
-
2016
- 2016-08-17 CN CN201620901090.6U patent/CN205937946U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106168298A (en) * | 2016-08-17 | 2016-11-30 | 超达阀门集团股份有限公司 | A kind of floating ball valve of high-pressure high-temperature two-way metal sealing |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |