CN205446786U - High temperature modification ball valve seals up disk seat - Google Patents
High temperature modification ball valve seals up disk seat Download PDFInfo
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- CN205446786U CN205446786U CN201620126979.1U CN201620126979U CN205446786U CN 205446786 U CN205446786 U CN 205446786U CN 201620126979 U CN201620126979 U CN 201620126979U CN 205446786 U CN205446786 U CN 205446786U
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Abstract
The utility model relates to a ball valve technical field especially relates to a high temperature modification ball valve seals up disk seat, including case, sealed disk seat, valve body, retaining ring, spring and protective shroud, install sealed disk seat in the valve body, coaxial rotation installs the case in the sealed disk seat, and the retaining ring is installed between valve body and sealed disk seat, and the protective shroud is installed in the valve body, and the protective shroud is laminated with the outer end facial features of retaining ring, and the spring is top mounted between sealed disk seat and protective shroud, is provided with the balanced seal circle between the inner circle of retaining ring and the outer lane of sealed disk seat, is provided with the sealing ring between the outer lane of retaining ring and the inner circle of valve body. The utility model discloses a high temperature modification ball valve seals up disk seat through increase the retaining ring between sealed disk seat and valve body, reduces the sealed specific pressure between disk seat and case, simultaneously set up the boss at the retaining ring with the valve body department of being connected, realize more effective sealed effect for the moment of valve switching reduces, has reduced transmission's use cost.
Description
Technical field
This utility model relates to ball valve technical field, particularly relates to a kind of high temperature modification ball valve sealing valve seat.
Background technology
Ball valve is a kind of technology being in daily use, and is usually used in the industries such as petroleum refining, long-distance transport pipes, chemical industry, papermaking, pharmacy, water conservancy, electric power, municipal administration, iron and steel, for blocking or connect the medium in pipeline.
The sealing principle of ball valve mainly installs a spool by valve inner, when valve is in opening, and the through hole in the middle of spool and the import and export conducting at valve body two ends, form pipeline.During closedown, only need to drive Spool rotating 90 ° by valve rod, utilize the sphere of spool to be closed by pipeline.For preventing valve internal from revealing, valve seat constitutes sealing surface with spool sphere.Sealing between valve seat and spool is most important thus, but valve seat and spool with the use of in, at valve seat, spring is set behind, ensure that the valve seat of ball valve and spool can gluing, sealings closely by the compression pretightning force of spring, but sometimes increase owing to medium acts on the pressure on valve seat, valve seat is made to increase with the friction of valve core chamber, moment when causing being turned on and off valve increases, the performance requirement of actuating device is improved, increase use cost, and under worst hot case, O RunddichtringO easily softens, it is impossible to play sealing effectiveness.
Utility model content
The technical problems to be solved in the utility model is: in order to solve under worst hot case, valve seat is bigger by pressure medium area, valve seat is caused to strengthen with spool frictional force, use the problems such as actuating device cost increase, this utility model provides a kind of high temperature modification ball valve sealing valve seat block, to reach to reduce seal pressure, reduce the purpose of use cost.
This utility model solves its technical problem and be the technical scheme is that a kind of high temperature modification ball valve sealing valve seat, including spool, seal valve seat, valve body, back-up ring, spring and guard ring, seal valve seat is installed in described valve body, rotate coaxially in seal valve seat and spool is installed, described back-up ring is arranged between valve body and seal valve seat, described guard ring is arranged in valve body, guard ring fits with the outer face of back-up ring, spring top is contained between seal valve seat and guard ring, seal valve seat is fitted tightly with spool by the elastic force of spring, it is provided with balanced seal circle between inner ring and the outer ring of seal valve seat of back-up ring, it is provided with sealing ring between outer ring and the inner ring of valve body of described back-up ring.This utility model, by adding back-up ring between valve seat and valve body, reduces the seal pressure of valve seat and valve core chamber.
In order to be applicable to worst hot case, it is easily installed resilient sealing ring, at the outer face of back-up ring, the boss of integrative-structure it is provided with on the outer ring of described back-up ring, the inwall of valve body is provided with the outer face of step surface boss and the outer face of back-up ring on the same face, the inner face of boss be inclined-plane and and step surface between form the gap for installing sealing ring.Such structure can be set with sealing ring, adapts to hot environment.
nullIn order to ensure to seal between seal valve seat and back-up ring，And worst hot case can be applicable to，Described a kind of high temperature modification ball valve sealing valve seat also includes the seal receptacle support of L-shaped，The outer ring of described seal valve seat offers continuous print first step and second step，First step includes that first indulges step surface and the first horizontal step surface，Second step includes that second indulges step surface and the second horizontal step surface，Second horizontal step surface extends to the outer face of seal valve seat，Balanced seal circle is arranged on first and indulges on step surface，Two limits of the inner side of the seal receptacle support of L-shaped are connected to the first horizontal step surface and second respectively and indulge on step surface，Balanced seal circle is between the first seal receptacle support indulging step surface and L-shaped，Spring is arranged on the second horizontal step surface，Spring top is contained between seal receptacle support and guard ring，The seal receptacle support of L-shaped is indulged step surface fitted tightly by elastic force and the first horizontal step surface and second of spring.
In order to high temperature resistant, described sealing ring uses graphite-seal ring.
The beneficial effects of the utility model are, a kind of high temperature modification ball valve sealing valve seat of the present utility model, by increasing back-up ring between seal valve seat and valve body, reduce the seal pressure of valve seat and valve core chamber；Simultaneously, in back-up ring and valve body connection, boss is set, the medium power acted on back-up ring is transferred on valve body, the medium power acting on seal valve seat is made to reduce, reduce the frictional force of seal valve seat and valve core chamber simultaneously, realize more effectively sealing effectiveness so that the moment of valve opening and closing reduces, and reduces the use cost of actuating device.
Accompanying drawing explanation
With embodiment, this utility model is further illustrated below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of this utility model optimum embodiment.
Fig. 2 is the partial enlarged drawing of Fig. 1.
In figure: 1, valve body, 11, step surface, 2, guard ring, 3, spring, 4, the seal receptacle support of L-shaped, 5, seal valve seat, 51, first step surface is indulged, the 52, first horizontal step surface, 53, second indulges step surface, 54, the second horizontal step surface, 6, spool, 7, balanced seal circle, 8, back-up ring, 81, boss, 9, sealing ring.
Detailed description of the invention
Presently in connection with accompanying drawing, this utility model is described in further detail.These accompanying drawings are the schematic diagram of simplification, and basic structure of the present utility model is described the most in a schematic way, and therefore it only shows the composition relevant with this utility model.
Such as Fig. 1, shown in 2, it it is this utility model optimum embodiment, a kind of high temperature modification ball valve sealing valve seat, including spool 6, seal valve seat 5, valve body 1, back-up ring 8, spring 3 and guard ring 2, seal valve seat 5 is installed in valve body 1, rotate coaxially in seal valve seat 5 and spool 6 is installed, back-up ring 8 is arranged between valve body 1 and seal valve seat 5, guard ring 2 is arranged in valve body 1, guard ring 2 fits with the outer face of back-up ring 8, spring 3 top is contained between seal valve seat 5 and guard ring 2, seal valve seat 5 is fitted tightly with spool 6 by the elastic force of spring 3, it is provided with balanced seal circle 7 between inner ring and the outer ring of seal valve seat 5 of back-up ring 8, it is provided with sealing ring 9 between outer ring and the inner ring of valve body 1 of back-up ring 8.
At the outer face of back-up ring 8, the boss 81 of integrative-structure it is provided with on the outer ring of back-up ring 8, the inwall of valve body 1 is provided with step surface 11, the outer face of the outer face of boss 81 and back-up ring 8 on the same face, the inner face of boss 81 be inclined-plane and and step surface 11 between form the gap for installing sealing ring 9.Sealing ring 9 uses graphite-seal ring.
nullHigh temperature modification ball valve sealing valve seat also includes the seal receptacle support 4 of L-shaped，The outer ring of seal valve seat 5 offers continuous print first step and second step，First step includes that first indulges step surface 51 and the first horizontal step surface 52，Second step includes that second indulges step surface 53 and the second horizontal step surface 54，Second horizontal step surface 54 extends to the outer face of seal valve seat 5，Balanced seal circle 7 is arranged on first and indulges on step surface 51，Two limits of the inner side of the seal receptacle support 4 of L-shaped are connected to the first horizontal step surface 52 and second respectively and indulge on step surface 53，Balanced seal circle 7 is between the first seal receptacle support 4 indulging step surface 51 and L-shaped，Spring 3 is arranged on the second horizontal step surface 54，Spring 3 top is contained between seal receptacle support 4 and guard ring 2，The seal receptacle support 4 of L-shaped is indulged step surface 53 fitted tightly by elastic force and the first horizontal step surface 52 and second of spring 3.Spring 3 uses wavy spring.
The present embodiment, a kind of high temperature modification ball valve sealing valve seat, balanced seal circle 7 ensure that the sealing between the inner ring of back-up ring 8 and the outer ring of seal valve seat 5 coordinates, and graphite-seal ring ensure that the sealing between the outer ring of back-up ring 8 and the inner ring of valve body 1 coordinates.By increasing back-up ring 8 between seal valve seat 5 and valve body 1, reduce the seal pressure between seal valve seat 5 and spool 6；Simultaneously, in back-up ring 8 and valve body 1 connection, boss 81 is set, the medium power acted on back-up ring 8 is transferred on valve body 1, the medium power acting on seal valve seat 5 is made to reduce, reduce the frictional force between seal valve seat 5 and spool 6 simultaneously, realize more effectively sealing effectiveness so that the moment of valve opening and closing reduces, and reduces the use cost of actuating device.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff can carry out various change and amendment completely in the range of without departing from this utility model technological thought.The content that the technical scope of this utility model is not limited in description, it is necessary to determine its technical scope according to right.
Claims (4)
- null1. a high temperature modification ball valve sealing valve seat，It is characterized in that: include spool (6)、Seal valve seat (5)、Valve body (1)、Back-up ring (8)、Spring (3) and guard ring (2)，Seal valve seat (5) is installed in described valve body (1)，Rotate coaxially in seal valve seat (5) and spool (6) is installed，Described back-up ring (8) is arranged between valve body (1) and seal valve seat (5)，Described guard ring (2) is arranged in valve body (1)，Guard ring (2) fits with the outer face of back-up ring (8)，Spring (3) top is contained between seal valve seat (5) and guard ring (2)，Seal valve seat (5) is fitted tightly with spool (6) by the elastic force of spring (3)，It is provided with balanced seal circle (7) between inner ring and the outer ring of seal valve seat (5) of back-up ring (8)，It is provided with sealing ring (9) between outer ring and the inner ring of valve body (1) of described back-up ring (8).
- 2. a kind of high temperature modification ball valve sealing valve seat as claimed in claim 1, it is characterized in that: at the outer face of back-up ring (8), on the outer ring of described back-up ring (8), be provided with the boss (81) of integrative-structure, the inwall of valve body (1) is provided with step surface (11), the outer face of the outer face of boss (81) and back-up ring (8) on the same face, the inner face of boss (81) be inclined-plane and and step surface (11) between form the gap being used for installing sealing ring (9).
- null3. a kind of high temperature modification ball valve sealing valve seat as claimed in claim 1，It is characterized in that: also include the seal receptacle support (4) of L-shaped，The outer ring of described seal valve seat (5) offers continuous print first step and second step，First step includes that first indulges step surface (51) and the first horizontal step surface (52)，Second step includes that second indulges step surface (53) and the second horizontal step surface (53)，Second horizontal step surface (53) extends to the outer face of seal valve seat (5)，Balanced seal circle (7) is arranged on first and indulges on step surface (51)，Two limits of the inner side of the seal receptacle support (4) of L-shaped are connected to the first horizontal step surface (52) and second respectively and indulge on step surface (53)，Balanced seal circle (7) is positioned between the first seal receptacle support (4) indulging step surface (51) and L-shaped，Spring (3) is arranged on the second horizontal step surface (54)，Spring (3) top is contained between seal receptacle support (4) and guard ring (2)，The seal receptacle support (4) of L-shaped is indulged step surface (53) fitted tightly by elastic force and the first horizontal step surface (52) and second of spring (3).
- 4. a kind of high temperature modification ball valve sealing valve seat as claimed in claim 2, it is characterised in that: described sealing ring (9) uses graphite-seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620126979.1U CN205446786U (en) | 2016-02-19 | 2016-02-19 | High temperature modification ball valve seals up disk seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620126979.1U CN205446786U (en) | 2016-02-19 | 2016-02-19 | High temperature modification ball valve seals up disk seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205446786U true CN205446786U (en) | 2016-08-10 |
Family
ID=56582778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620126979.1U Active CN205446786U (en) | 2016-02-19 | 2016-02-19 | High temperature modification ball valve seals up disk seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205446786U (en) |
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2016
- 2016-02-19 CN CN201620126979.1U patent/CN205446786U/en active Active
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