CN205244452U - Initiative canned type disk seat - Google Patents
Initiative canned type disk seat Download PDFInfo
- Publication number
- CN205244452U CN205244452U CN201520990743.8U CN201520990743U CN205244452U CN 205244452 U CN205244452 U CN 205244452U CN 201520990743 U CN201520990743 U CN 201520990743U CN 205244452 U CN205244452 U CN 205244452U
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- Prior art keywords
- disk seat
- seat
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- interior
- valve seat
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Abstract
The utility model provides an initiative canned type disk seat, includes the valve body and installs the disk seat on the valve body, the disk seat comprises inside and outside disk seat, should interior disk seat be the annular structure that the cross sectional shape is the L type, whole annular separation blade be installed to the inboard of the long arm of this L type, outer disk seat setting is at the breach of L type department and its vacuole formation between the galianconism of terminal surface and L type down, and the outer anchor ring of outer disk seat inboard anchor ring and interior disk seat is clearance fit and spaced apartly on the anchor ring of outer disk seat inboard have a runner, the fender end of outer disk seat medial surface upper end is pushed down to the separation blade, the cavity is sealed by O type circle, be equipped with initial seal structure on the interior disk seat, and be equipped with seal structure once more on the outer disk seat. The utility model discloses it is sealed to promote to produce the inception by the spring on the interior disk seat, when initial sealing leak, promotes outer valve seat seal in the cavity of the outer disk seat of medium entering to realize reliable sealedly, be applicable to in the process line of clean medium that operating temperature is less than 120 DEG C.
Description
Technical field
The utility model belongs to technical field of valve manufacturing, is specifically related to a kind of active sealed valve seat.
Background technology
Existing valve, sealing pair generally has two kinds, soft seal and hard sealing; The two has the pluses and minuses of oneself. Cooperatively interacting of soft and hard seal pair can reach very high leakage class, can meet the strictest tiny leakage test, and leakage rate can arrive 50ppm. But the shortcomings such as soft seal pair has not wear-resistant, and heat resistance is poor. Though hard sealing pair has good performance on abrasion-proof and temperature-resistant performance, leakage class is not as soft seal pair. In long-term use, as flat gate valve, ball valve etc. are all that soft and hard seal pair is combined and used. To make up the deficiency of the two. But in the time that leaking appears in valve base sealing, sealing just can not solve the problem of leakage well together.
Utility model content
The utility model provides a kind of active sealed valve seat, while being applicable to 120 DEG C of operating temperatures with interior valve, reaches positiver sealing.
The technical scheme that the utility model is taked is:
A kind of active sealed valve seat, comprises valve body and is installed on the valve seat on valve body, described valve seat is made up of interior outer seat; This interior valve seat is that cross sectional shape is the circulus of L-type, and the long-armed inner side of this L-type is provided with integral ring-shaped catch; Outer seat is arranged between the indentation, there of L-type and its lower surface and the galianconism of L-type and forms cavity, in outer seat the outer ring surface of side ring surface and interior valve seat be in matched in clearance and outer seat on side ring surface interval have runner; Described catch is pushed down the gear end of outer seat medial surface upper end, and described cavity is sealed by O type circle; Described interior valve seat is provided with initial sealing structure, and outer seat is provided with hermetically-sealed construction again.
Described initial sealing structure comprises the first sealing ring and the first spring; This first sealing ring and the first spring are arranged on respectively on the upper and lower end face of interior valve seat.
Described hermetically-sealed construction again comprises the second sealing ring and the second spring; This second sealing ring is arranged on the upper surface of outer seat, and the second spring is placed between the lower surface and interior valve seat of outer seat.
The utility model promotes to produce initial sealing by the spring on interior valve seat, in the time of initial sealing leak, medium enters and in the cavity of outer seat, promotes outer seat sealing, thereby realizes positiver sealing, is applicable in the process pipe of clean medium that operating temperature is less than 120 DEG C.
Brief description of the drawings
Fig. 1 is cross-sectional schematic of the present utility model;
Fig. 2 is the three-dimensional cross-sectional schematic of the utility model outer seat.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is elaborated.
With reference to Fig. 1,2, a kind of active sealed valve seat, mainly comprises interior valve seat 1, flashboard 12, screw 3, catch 4, outer seat 5, outer seat gear end 5-1, runner 5-2, first, second sealing ring 2,6, O type circle 7, valve body 8, first, second spring 11,9, cavity 10.
The utility model valve seat is made up of interior outer seat 1,5; This interior valve seat 1 is that cross sectional shape is the circulus of L-type, the long-armed inner side of this L-type is provided with integral ring-shaped catch 4, outer seat 5 is arranged between the indentation, there of L-type and its lower surface and the galianconism of L-type and forms cavity 10, and the outer ring surface of the interior side ring surface of outer seat 5 and interior valve seat 1 is that the long-armed inner side of L-type is that on matched in clearance and the interior side ring surface of outer seat 5, interval has runner 5-2; Described catch 4 is pushed down the gear end 5-1 of outer seat 5 medial surface upper ends, and described cavity 10 is sealed by O type circle 7; Described interior valve seat 1 is provided with initial sealing structure, and outer seat 5 is provided with hermetically-sealed construction again.
After assembling, outer seat 5 and the second spring 9, the second sealing rings 6 assemble again with interior valve seat 1. Catch 4 is assemblied on interior valve seat 1 by screw 3, and catch 4 stops outer seat gear end 5-1, prevents that outer seat 5 from ejecting assembly under the effect of the second spring 9.
Described initial sealing structure comprises the first sealing ring 2 and the first spring 11; This first sealing ring 2 and the first spring 11 are arranged on respectively on the upper and lower end face of interior valve seat 1, are also on the bottom surface of the long-armed end face of L-type and galianconism.
Described hermetically-sealed construction again comprises the second sealing ring 6 and the second spring 9; This second sealing ring 6 is arranged on the upper surface of outer seat 5, and this second sealing ring 6 and the first sealing ring 2 are positioned at homonymy, and the second spring 9 is placed between the lower surface and interior valve seat 1 of outer seat 5.
In the time that the first sealing ring 2 damages leakage, medium can enter outer seat runner 5-2 along the passage damaging, and finally enters cavity 10. Medium is full of the rear mineralization pressure of cavity 10, and pressure area is A2. Medium is along the channel flow of damaging, finally stopped by the second sealing ring 6, mineralization pressure, pressure area is A1, due to A2 > A1, A2-A1=A3, therefore under promoting under the pressure that outer seat 5 forms at pressure area A3 and the second spring 9 effects, meeting reach is adjacent to flashboard 12 and seals, and forms sealing again, thereby has effectively stoped leakage.
The utility model has ensured that from structural design aspect medium does not leak well, and the guarantee of safety in production is provided.
Claims (3)
1. an active sealed valve seat, comprises valve body and is installed on the valve seat on valve body, it is characterized in that: described valve seat is made up of interior outer seat (1,5); This interior valve seat (1) is that cross sectional shape is the circulus of L-type, and the long-armed inner side of this L-type is provided with integral ring-shaped catch (4); Outer seat (5) is arranged between the indentation, there of L-type and its lower surface and the galianconism of L-type and forms cavity (10), and the outer ring surface of the interior side ring surface of outer seat (5) and interior valve seat (1) is that on matched in clearance and the interior side ring surface of outer seat (5), interval has runner (5-2); Described catch (4) is pushed down the gear end (5-1) of outer seat (5) medial surface upper end, and described cavity (10) is sealed by O type circle (7); Described interior valve seat (1) is provided with initial sealing structure, and outer seat (5) is provided with hermetically-sealed construction again.
2. a kind of active sealed valve seat according to claim 1, is characterized in that: described initial sealing structure comprises the first sealing ring (2) and the first spring (11); This first sealing ring (2) and the first spring (11) are arranged on respectively on the upper and lower end face of interior valve seat (1).
3. a kind of active sealed valve seat according to claim 1, is characterized in that: described hermetically-sealed construction again comprises the second sealing ring (6) and the second spring (9); This second sealing ring (6) is arranged on the upper surface of outer seat (5), and the second spring (9) is placed between the lower surface and interior valve seat (1) of outer seat (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520990743.8U CN205244452U (en) | 2015-12-03 | 2015-12-03 | Initiative canned type disk seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520990743.8U CN205244452U (en) | 2015-12-03 | 2015-12-03 | Initiative canned type disk seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205244452U true CN205244452U (en) | 2016-05-18 |
Family
ID=55943531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520990743.8U Active CN205244452U (en) | 2015-12-03 | 2015-12-03 | Initiative canned type disk seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205244452U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351551A (en) * | 2015-12-03 | 2016-02-24 | 兰州高压阀门有限公司 | Active sealing type valve seat |
| CN107504209A (en) * | 2017-09-20 | 2017-12-22 | 圣博莱阀门有限公司 | Detachable single valve seat two-way sealing knife gate valve |
-
2015
- 2015-12-03 CN CN201520990743.8U patent/CN205244452U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351551A (en) * | 2015-12-03 | 2016-02-24 | 兰州高压阀门有限公司 | Active sealing type valve seat |
| CN107504209A (en) * | 2017-09-20 | 2017-12-22 | 圣博莱阀门有限公司 | Detachable single valve seat two-way sealing knife gate valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |