CN205504061U - Fire resistive construction's ball valve seating - Google Patents
Fire resistive construction's ball valve seating Download PDFInfo
- Publication number
- CN205504061U CN205504061U CN201620304180.7U CN201620304180U CN205504061U CN 205504061 U CN205504061 U CN 205504061U CN 201620304180 U CN201620304180 U CN 201620304180U CN 205504061 U CN205504061 U CN 205504061U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve seat
- seat body
- spheroid
- fire proof
- 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.)
- Active
Links
Abstract
The utility model relates to a fire resistive construction's ball valve seating, it is including setting up at the valve seat body of valve body with spheroid contact department, in the valve body is arranged in to the spheroid, be equipped with a runner on the spheroid, valve seat body and valve body are corresponding be equipped with the opening on the position at runner both ends, its characterized in that: last cold sealing mechanism and the hot sealing mechanism who is used for sealed valve seat body and spheroid contact surface that be equipped with of valve seat body is equipped with fire prevention sealing washer and O type circle respectively between valve seat body and valve body. The fire prevention function that adopts fire prevention sealing washer and hot sealing mechanism to realize the disk seat simultaneously, uses cold sealing mechanism to realize sealing under the normality, realizes the double containment of ball valve.
Description
Technical field
This utility model relates to a kind of valve, particularly to the ball seat of a kind of fire proof construction.
Background technology
Ball valve, defined in standard GB/T21465-2008 " valve term " be: opening and closing element (spheroid) is driven by valve rod, and around
The valve that ball valve axis rotates.Also can be used for regulation and the control of fluid, the most firmly seal its V-type core of V-type ball valve
And there is between the metal seat valve of pile-up welding hard alloy the strongest shearing force, be particularly well-suited to fibre-bearing, small solid material etc.
Medium.And multi-pass ball valve not only can control the interflow of medium, shunting and the switching flowed on pipeline flexibly, also may be used simultaneously
Close arbitrary passage and make two other passage be connected.
Existing ball valve, mostly uses a kind of seal form, and fire prevention degree is the highest.
Utility model content
In order to overcome the deficiency of background technology, this utility model provides the ball seat of a kind of fire proof construction.
This utility model be the technical scheme is that the ball seat of a kind of fire proof construction, and it includes being arranged on valve body
With the valve seat body of spheroid contact position, spheroid is placed in valve body, and described spheroid is provided with a runner, described valve seat body and valve body
The position at corresponding described runner two ends is provided with opening, it is characterised in that: it is provided with for sealing valve in described valve seat body
The cold sealing mechanism of seat body and spheroid contact surface and heat seal mechanism, be respectively equipped with fire prevention close between valve seat body and valve body
Seal and O.
Described fire proof seal circle uses soft graphite.
Described cold sealing mechanism is the first sealing ring being arranged in valve seat body, and described first sealing ring is embedded in valve seat originally
On body, its one end is exposed outside valve seat body, contacts with spherome surface.
Described first sealing ring uses PTFE seal circle.
Described heat seal mechanism is horizontal includes lip seal and valve seat body adjusting part, and described lip seal is arranged on
First sealing ring lower end, near the side of spheroid；Described valve seat body adjusting part is arranged between valve body and valve seat body, structure
Valve seat body is become to coordinate relative to the sliding of valve body.
Described lip seal includes the lip type cutting edge arranging in valve seat body.
Described valve seat body adjusting part includes the groove being arranged on valve body and the spiral bullet being arranged in valve seat body
Spring, the open horizontal of described groove is arranged towards valve seat body, and described helical spring is pressed in groove in advance.
Being provided with valve rod, described valve rod sidewall is provided with the first sealing member, described valve rod end face and valve with the contact surface of valve body
The contact surface of body is provided with the second sealing member.
The beneficial effects of the utility model are: this utility model uses fire proof seal circle and heat seal mechanism to realize valve seat
Fire-proof function, meanwhile, realize the sealing under normality with cold sealing mechanism, it is achieved the double containment of ball valve.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the enlarged drawing in Fig. 1 at A.
1-valve body, 2-valve seat body, 21-fire proof seal circle, 22-O type circle, 23-the first sealing ring, 24-lip type cutting edge,
25-groove, 26-helical spring, 3-spheroid, 4-valve rod, 41-the first sealing member, 42-the second sealing member.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model embodiment is described further:
As it can be seen, the ball seat of a kind of fire proof construction, it includes the valve seat being arranged on valve body 1 with spheroid 3 contact position
Body 2, spheroid 3 is placed in valve body 1, and described spheroid 3 is provided with a runner, described valve seat body 2 and valve body 1 at corresponding described stream
The position at two ends, road is provided with opening, it is characterised in that: it is provided with for seal valve seat body 2 and ball in described valve seat body 2
The cold sealing mechanism of body 3 contact surface and heat seal mechanism, be respectively equipped with fire proof seal circle 21 between valve seat body 2 and valve body 1
With O 22, use fire proof seal circle and heat seal mechanism to realize the fire-proof function of valve seat, come with cold sealing mechanism meanwhile
Realize the sealing under normality, it is achieved the double containment of ball valve.
Described fire proof seal circle 21 uses soft graphite, utilizes its high temperature resistant, effect of high intensity.
Described cold sealing mechanism is the first sealing ring 23 being arranged in valve seat body 2, and described first sealing ring 23 is embedded in
In valve seat body 2, it is ensured that it installs stable, difficult drop-off；One end of this first sealing ring 23 is exposed outside valve seat body 2, with
Spheroid 3 surface contacts, and under normality, the first sealing ring 23 contacts with spheroid 3 surface, constitutes cold sealing, it is ensured that valve seat body 2 and ball
The sealing of body 3.
Described first sealing ring 23 uses PTFE seal circle, PTFE material to have the advantage that:
1, chemical stability is good, it is possible to the corrosiveness of resistance to strong acid, highly basic, strong oxidizer and organic solvent；
2, heat stability, can be high temperature resistant；
3, having anti-attrition, coefficient of friction is extremely low, while sealing, and rub resistance, it is not necessary to often change；
4, having self lubricity, almost all of stickum all can not adhere to its surface up, therefore can protect
Demonstrate,prove nearest sealing property.
Horizontal lip seal and valve seat body 2 adjusting part of including of described heat seal mechanism, described lip seal is arranged
In the first sealing ring 23 lower end, near the side of spheroid 3；Described valve seat body 2 adjusting part is arranged on valve body 1 and valve seat body
Between 2, the sliding constituting the relative valve body 1 of valve seat body 2 coordinates, by valve seat body 2 adjusting part valve seat body 2 and spheroid 3
Between distance, thus regulate between lip seal and spheroid 3 concrete, it is achieved seal.
Described lip seal includes the lip type cutting edge 24 arranging in valve seat body 2, and lip type cutting edge 24 is similar to one and dashes forward
The boss risen, contacts with the direct of spheroid 3 relative to valve seat body 2, and lip type cutting edge 24 is much smaller with the contact surface of spheroid 3,
Spheroid 3 surface is arc, and contact area is the least, and contact gap reduces, snugly can be the best, spheroid 3 moment of torsion in rotary course
Can reduce.
Described valve seat body 2 adjusting part includes the groove 25 being arranged on valve body 1 and the spiral shell being arranged in valve seat body 2
Rotation spring 26, the open horizontal of described groove 25 is arranged towards valve seat body 2, and described helical spring 26 is pressed on groove 25 in advance
In, when ball valve is after burning, and the PTFE seal circle as cold sealing mechanism can be destroyed, and is now equivalent to PTFE seal circle and does not deposits
, when the sealing function of PTFE seal circle disappears, and helical spring 26 can discharge precompressed elastic force, and lip type cutting edge 24 is at spiral bullet
Under the effect of spring 26 precompressed elastic force, contact with spheroid 3 surface, and under the effect of helical spring 26, contacting surface contact more steps up
Close, i.e. better tightness.
Being provided with valve rod 4, described valve rod 4 sidewall is provided with the first sealing member 41 with the contact surface of valve body 1, prevents medium in valve
Reveal；Described valve rod 4 end face is provided with the second sealing member 42 with the contact surface of valve body 1, prevents the outer medium of valve from entering in valve.
It is only preferred implementation of the present utility model above in association with the embodiment described by accompanying drawing, and not to this practicality
The restriction of novel protection domain, any improvement done based on this utility model spirit all ought to protect model at this utility model
Within enclosing.
Claims (8)
1. the ball seat of a fire proof construction, it is characterised in that: it includes being arranged on valve body (1) and spheroid (3) contact position
Valve seat body (2), spheroid (3) is placed in valve body (1), and described spheroid (3) is provided with a runner, described valve seat body (2) and valve
Body (1) is provided with opening on the position at corresponding described runner two ends, it is characterised in that: in described valve seat body (2), it is provided with use
In cold sealing mechanism and the heat seal mechanism of seal valve seat body (2) and spheroid (3) contact surface, at valve seat body (2) and valve body
(1) fire proof seal circle (21) and O (22) it are respectively equipped with between.
The ball seat of a kind of fire proof construction the most according to claim 1, it is characterised in that: described fire proof seal circle (21)
Use soft graphite.
The ball seat of a kind of fire proof construction the most according to claim 1, it is characterised in that: described cold sealing mechanism is for setting
Putting the first sealing ring (23) in valve seat body (2), described first sealing ring (23) is embedded in valve seat body (2), its one end
Exposed in valve seat body (2) outward, contact with spheroid (3) surface.
The ball seat of a kind of fire proof construction the most according to claim 3, it is characterised in that: described first sealing ring (23)
Use PTFE seal circle.
The ball seat of a kind of fire proof construction the most according to claim 3, it is characterised in that: described heat seal mechanism Heng Bao
Including lip seal and valve seat body (2) adjusting part, described lip seal is arranged on the first sealing ring (23) lower end, close
The side of spheroid (3)；Described valve seat body (2) adjusting part is arranged between valve body (1) and valve seat body (2), constitutes valve seat
The sliding of body (2) valve body (1) relatively coordinates.
The ball seat of a kind of fire proof construction the most according to claim 5, it is characterised in that: described lip seal includes
Lip type cutting edge (24) in valve seat body (2) is set.
The ball seat of a kind of fire proof construction the most according to claim 5, it is characterised in that: described valve seat body (2) is adjusted
Joint assembly includes the groove (25) being arranged on valve body (1) and the helical spring (26) being arranged in valve seat body (2), described recessed
The open horizontal of groove (25) is arranged towards valve seat body (2), and described helical spring (26) is pressed in groove (25) in advance.
The ball seat of a kind of fire proof construction the most according to claim 1, it is characterised in that: it is provided with valve rod (4), described valve
Bar (4) sidewall is provided with the first sealing member (41) with the contact surface of valve body (1), and described valve rod (4) end face contacts with valve body (1)
Face is provided with the second sealing member (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620304180.7U CN205504061U (en) | 2016-04-13 | 2016-04-13 | Fire resistive construction's ball valve seating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620304180.7U CN205504061U (en) | 2016-04-13 | 2016-04-13 | Fire resistive construction's ball valve seating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205504061U true CN205504061U (en) | 2016-08-24 |
Family
ID=56714494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620304180.7U Active CN205504061U (en) | 2016-04-13 | 2016-04-13 | Fire resistive construction's ball valve seating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205504061U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654690A (en) * | 2017-10-23 | 2018-02-02 | 保集团有限公司 | Bi-directional sealed V shape regulation ball valve |
-
2016
- 2016-04-13 CN CN201620304180.7U patent/CN205504061U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654690A (en) * | 2017-10-23 | 2018-02-02 | 保集团有限公司 | Bi-directional sealed V shape regulation ball valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205504061U (en) | Fire resistive construction's ball valve seating | |
| CN202733040U (en) | Three-sealing ball valve seat | |
| CN201090774Y (en) | Ceramic regulating ball valve | |
| CN204358156U (en) | High temperature double-valve-seat Bidirectional rigid sealing ball valve | |
| CN203286123U (en) | Valve rod sealing ring with metal spring | |
| CN202280865U (en) | Intelligent U-shaped adjusting valve | |
| CN201705982U (en) | High-temperature wear-resistant ball valve | |
| CN205504062U (en) | Ball valve fire resistive construction | |
| CN205504064U (en) | Soft or hard double sealing ball valve | |
| CN109990105A (en) | A kind of Bidirectional pressure spherical cambered surface hard alloy sealed butterfly valve | |
| CN205173522U (en) | Disk seat can be dismantled by choke valve | |
| CN204852428U (en) | Titanium material ball valve sealed firmly | |
| CN208311517U (en) | Soft seal flat gate valve | |
| CN104154265B (en) | A kind of roof-mounted cryogenic ball valve of closed type that mixes | |
| CN210600217U (en) | High-temperature-resistant bidirectional sealing butterfly valve | |
| CN205745426U (en) | A kind of heavy caliber heat supply all-welded ball valve | |
| CN205423886U (en) | Intelligent high temperature resistant gate valve | |
| CN103375599A (en) | Metal seal flat valve | |
| CN205078834U (en) | Anti -fire ball vale | |
| CN208153762U (en) | Metal sealing high-temp plane gate valve | |
| CN204267778U (en) | Superhigh temperature wear resistance ball valve | |
| CN203979488U (en) | The roof-mounted cryogenic ball valve of a kind of mixing sealed type | |
| CN211231758U (en) | Over-temperature cut-off valve | |
| CN208138502U (en) | Metallic seal flat plate gate valve | |
| CN209762277U (en) | Hard-seal zero-leakage bidirectional pressure butterfly valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |