CN106168298A - A kind of floating ball valve of high-pressure high-temperature two-way metal sealing - Google Patents
A kind of floating ball valve of high-pressure high-temperature two-way metal sealing Download PDFInfo
- Publication number
- CN106168298A CN106168298A CN201610684667.7A CN201610684667A CN106168298A CN 106168298 A CN106168298 A CN 106168298A CN 201610684667 A CN201610684667 A CN 201610684667A CN 106168298 A CN106168298 A CN 106168298A
- Authority
- CN
- China
- Prior art keywords
- valve
- valve seat
- valve gap
- gap
- type circle
- 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.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0605—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor with particular plug arrangements, e.g. particular shape or built-in means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0663—Packings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0663—Packings
- F16K5/0684—Packings on the plug
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0663—Packings
- F16K5/0689—Packings between housing and plug
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
Abstract
The present invention relates to the floating ball valve of a kind 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 engages in this profession with medium, it is provided with inlet side valve seat between described valve gap correspondence medium access side and spheroid, described valve gap correspondence medium is engaged in this profession and is provided with outlet side valve seat between side and spheroid, the outer fix of described valve gap correspondence inlet side valve seat is additionally provided with " U " type circle and centring ring, the side of described " U " type circle is welded mutually with described inlet side valve seat, the opposite side of " U " type circle welds mutually with described centring ring, described centring ring " U " type circle opposite side relatively welds mutually with described valve gap.Technical solution of the present invention, has and is applicable to the technique effect using requirement that high-pressure high-temperature two-way seals.
Description
Technical field
The present invention relates to the floating ball valve of a kind of high-pressure high-temperature two-way metal sealing.
Background technology
Floating ball valve for worst hot case needs to use shape metallic leak-proof structure.For metal sealing floating ball valve, in order to
Prevent under high temperature stuck because of the expansion of parts, it usually needs the side valve seat at ball valve arranges spring behind, this valve seat
Can move axially in valve gap.Can move in order to ensure valve seat, again and have good sealing between valve gap, generally at valve seat
Flexible graphite sealing ring is set behind.Losing efficacy to prevent spring in use long-term pressurized, usual metal sealing floats
Dynamic ball valve is all one-way sealing.But, some working condition requirement high-temperature high-pressure metal seal floating ball valve has two way seal merit
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 uses soft graphite.
The existing valve seat of design high-temperature metal seal floating ball valve and the sealing of valve gap all use soft graphite.Outlet side valve
Seat can be reliably sealed by clamping soft graphite with valve gap.And the sealing of inlet side valve seat and valve gap is simply by soft graphite
Lateral expansion reach sealing, see accompanying drawing 2, therefore seal more difficult, when for high pressure operating mode, seal more difficult.
It addition, when requiring inlet side valve seat 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.Therefore the high-temperature metal seal floating ball valve of conventional design is typically only used for one-way sealing, is not suitable for two-way close
Envelope.
Summary of the invention
The deficiency existed for prior art, it is an object of the invention to provide one and is applicable to high-pressure high-temperature two-way sealing
Use require floating ball valve.
For achieving the above object, the invention provides following technical scheme, floating of a kind of high-pressure high-temperature two-way metal sealing
Dynamic ball valve, including valve body, spheroid and valve gap, described valve gap is provided with medium access and engages in this profession with medium, and described valve gap correspondence is situated between
Being provided with inlet side valve seat between matter access side and spheroid, described valve gap correspondence medium is engaged in this profession and is provided with between side and spheroid
Outlet side valve seat, the outer fix of described valve gap correspondence inlet side valve seat is additionally provided with " U " type circle and centring ring, described " U " type
The side of circle is welded mutually with described inlet side valve seat, and the opposite side of " U " type circle welds mutually with described centring ring, described centring ring phase
" U " type circle opposite side is welded mutually with described valve gap.
The present invention is further arranged to: described inlet side valve seat is provided with boss, when normally using, and described boss and valve
Between lid, the axis direction at inlet side valve seat leaves gap.
The present invention is further arranged to: described outlet side valve seat is connected by pressing plate and screw are fixing with valve gap, described
Outlet side valve seat seals with valve gap direct metal.
By using technical solution of the present invention, when needs inlet side valve base sealing, under pressure medium effect, inlet side
The boss of valve seat will lean against on valve gap by note, and the huge pressure medium acted on inlet side valve seat is held by valve gap by boss
Being subject to, " U " type circle is not subject to excessive medium power, it is ensured that " U " type circle under high pressure will not be subject to crushing.Due to inlet side valve seat,
" U " type circle, between centring ring and valve gap all use be welded to connect, it is ensured that medium will not be between inlet side valve seat and valve gap
Gap location leakage.The ball valve of this structure design at high temperature will not be stuck because of the expansion of parts, and import and export two
Side valve seat the most all can effectively seal, and therefore, the floating ball valve of this structure design is applicable to high-pressure high-temperature two-way
The use requirement sealed.
The invention will be further described below in conjunction with the accompanying drawings.
Accompanying drawing explanation
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 embodiment of the present invention structure chart；
Fig. 4 is the B portion enlarged drawing of Fig. 3.
Detailed description of the invention
Seeing accompanying drawing 1 to accompanying drawing 4, the floating ball valve of high-pressure high-temperature two-way metal sealing disclosed by the invention, 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 the corresponding medium of described valve gap 3 enters
Being provided with inlet side valve seat 4 between side, road 301 and spheroid 2, the corresponding medium of described valve gap 3 is engaged in this profession between 302 sides and spheroid 2
Being provided with outlet side valve seat 7, the outer fix of the corresponding inlet side valve seat 4 of described valve gap 3 is additionally provided with " U " type circle 5 and centring ring
6, the side of described " U " type circle 5 is welded with described inlet side valve seat 4 phase, and the opposite side of " U " type circle 5 welds with described centring ring 6 phase
Connecing, described relative " U " type circle 5 opposite side of centring ring 6 welds with described valve gap 3 phase.
The present embodiment is further arranged to: described inlet side valve seat 4 is provided with boss 401, when normally using, described convex
Between platform 401 and valve gap 3, the axis direction at 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 are fixing even by pressing plate 8 and screw 9
Connecing, described outlet side valve seat 7 seals with valve gap 3 direct metal.
By using technical solution of the present invention, when needs inlet side valve seat 4 seals, under pressure medium effect, import
The boss of side valve seat 4 will lean against on valve gap 3 by note, acts on the huge pressure medium on inlet side valve seat 4 by boss by valve
Lid 3 bears, and " U " type circle 5 is not subject to excessive medium power, it is ensured that " U " type circle 5 under high pressure will not be subject to crushing.Due to import
Side valve seat 4, " U " type circle 5, between centring ring 6 and valve gap 3 all use be welded to connect, it is ensured that medium will not be from import side valve
Gap location leakage between seat 4 and valve gap 3.The ball valve of this structure design at high temperature will not block because of the expansion of parts
Extremely, and import and export both sides valve seat the most all can effectively seal, and therefore, the floating ball valve of this structure design is fitted
The use requirement sealed for high-pressure high-temperature two-way.
Claims (3)
1. a floating ball valve for high-pressure high-temperature two-way metal sealing, including valve body, spheroid and valve gap, described valve gap is provided with
Medium access is engaged in this profession with medium, is provided with inlet side valve seat, described valve between described valve gap correspondence medium access side and spheroid
The corresponding medium of lid is engaged in this profession and is provided with outlet side valve seat between side and spheroid, it is characterised in that: described valve gap correspondence 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 mutually with described inlet side valve seat,
The opposite side of " U " type circle welds mutually with described centring ring, and described centring ring " U " type circle opposite side relatively welds mutually with described valve gap
Connect.
The floating ball valve of high-pressure high-temperature two-way metal sealing the most according to claim 1, it is characterised in that: described inlet side
Valve seat is provided with boss, and when normally using, between described boss and valve gap, the axis direction at inlet side valve seat leaves gap.
The floating ball valve of high-pressure high-temperature two-way metal sealing the most according to claim 1 and 2, it is characterised in that go out described in:
Mouth side valve seat is connected by pressing plate and screw are fixing with valve gap, and described outlet side valve seat seals with valve gap direct metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610684667.7A CN106168298A (en) | 2016-08-17 | 2016-08-17 | A kind of floating ball valve of high-pressure high-temperature two-way metal sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610684667.7A CN106168298A (en) | 2016-08-17 | 2016-08-17 | A kind of floating ball valve of high-pressure high-temperature two-way metal sealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106168298A true CN106168298A (en) | 2016-11-30 |
Family
ID=57375830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610684667.7A Pending CN106168298A (en) | 2016-08-17 | 2016-08-17 | A kind of floating ball valve of high-pressure high-temperature two-way metal sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106168298A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113565982A (en) * | 2021-07-31 | 2021-10-29 | 浙江祺隆阀门有限公司 | High-sealing ball valve for pulverized coal |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4217923A (en) * | 1978-03-17 | 1980-08-19 | Kamyr Valves, Inc. | Ball valve with readily removable ball and seats for high temperature environment |
| US4483511A (en) * | 1983-05-18 | 1984-11-20 | Kitamura Valve Mfg. Co., Ltd. | Valve assembly including elastic seals |
| CN102155555A (en) * | 2011-04-19 | 2011-08-17 | 浙江超达阀门股份有限公司 | Valve seat structure of metal hard sealing ball valve |
| CN203868392U (en) * | 2014-05-29 | 2014-10-08 | 超达阀门集团股份有限公司 | Fixed ball valve applicable to high-temperature working conditions |
| CN205937946U (en) * | 2016-08-17 | 2017-02-08 | 超达阀门集团股份有限公司 | Two -way metal seal's of high temperature high pressure unsteady ball valve |
-
2016
- 2016-08-17 CN CN201610684667.7A patent/CN106168298A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4217923A (en) * | 1978-03-17 | 1980-08-19 | Kamyr Valves, Inc. | Ball valve with readily removable ball and seats for high temperature environment |
| US4483511A (en) * | 1983-05-18 | 1984-11-20 | Kitamura Valve Mfg. Co., Ltd. | Valve assembly including elastic seals |
| CN102155555A (en) * | 2011-04-19 | 2011-08-17 | 浙江超达阀门股份有限公司 | Valve seat structure of metal hard sealing ball valve |
| CN203868392U (en) * | 2014-05-29 | 2014-10-08 | 超达阀门集团股份有限公司 | Fixed ball valve applicable to high-temperature working conditions |
| CN205937946U (en) * | 2016-08-17 | 2017-02-08 | 超达阀门集团股份有限公司 | Two -way metal seal's of high temperature high pressure unsteady ball valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113565982A (en) * | 2021-07-31 | 2021-10-29 | 浙江祺隆阀门有限公司 | High-sealing ball valve for pulverized coal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161130 |
|
| RJ01 | Rejection of invention patent application after publication |