CN205479467U - Superstrong sealing performance high pressure double -piston ball valve - Google Patents
Superstrong sealing performance high pressure double -piston ball valve Download PDFInfo
- Publication number
- CN205479467U CN205479467U CN201620301007.1U CN201620301007U CN205479467U CN 205479467 U CN205479467 U CN 205479467U CN 201620301007 U CN201620301007 U CN 201620301007U CN 205479467 U CN205479467 U CN 205479467U
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- China
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- valve
- spool
- metal seat
- diameter
- seat
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Abstract
The utility model provides a superstrong leakproofness performance high pressure double -piston ball valve, including the valve body and be located the case of valve body valve pocket, the left and right sides of case all cooperates there is the disk seat, the outer tip of disk seat is cascaded, the outer tip of disk seat is pegged graft at the both ends of controlling of valve body valve pocket, the outer tip of disk seat includes ladder platform no. 1 and ladder platform no. 2, the diameter of ladder platform no. 1 is Z, the diameter of ladder platform no. 2 is Y, the case is X with the middle department's diameter of disk seat binding face, Y is greater than X and is greater than Z, be provided with the spring between the valve pocket of disk seat and the case, be fixed with on the preceding terminal surface of disk seat with case complex triangle fluorubber. The utility model discloses structural design is ingenious, reasonable, and valve seal is effectual, is worth popularizing and applying.
Description
Technical field
This utility model relates to a kind of valve, a kind of superpower sealing property high pressure double-piston ball valve.
Background technology
Valve is the control parts in fluid delivery system, and the existing metal seat valve on ball valve is also arranged on spool for left and right
Two ends, and airtight by rubber seal, but the airtight of metal seat valve is individual event, i.e. arbitrarily one end metal seat valve damages
In bad time, opposite side metal seat valve can not individual play sealing function, can cause the situation metal seat valve of valve leaks, and this
The service life planting valve is short.
Utility model content
The shortcoming that this utility model to solve above-mentioned prior art, it is provided that a kind of service life is long, good seal performance, it is possible to real
The superpower sealing property high pressure double-piston ball valve of existing two way seal, meets user for valve length in service life, sealing effectiveness
Good demand.
This utility model solve its technical problem use technical scheme: this superpower sealing performance high pressure double-piston ball valve,
Including valve body and the spool that is positioned at valve body valve pocket, the left and right sides of spool is all combined with metal seat valve, metal seat valve outer end
For staged, the outer end of metal seat valve is plugged on the two ends, left and right of valve body valve pocket, and the outer end of metal seat valve includes ladder platform
One and ladder platform two, a diameter of Z of ladder platform one, a diameter of Y of ladder platform two, in the sealing surface between spool and metal seat valve
Between locate a diameter of X, Y more than Z more than X, is provided with spring, the front end face of valve seat is fixed with and spool between valve body and valve seat
The triangle fluorubber coordinated.Here the effect of triangle fluorubber is, for effect airtight between metal seat valve and spool, by
Fluorine element is with the addition of, it is possible to improve corrosion resistance in rubber；Here diameter Y is more than the work of diameter Z more than diameter X
With being, when whichever metal seat valve of spool both sides is impaired, the fluid pressure suffered by metal seat valve all promotes metal seat valve court
Pressing to spool direction, its operation principle is: when any metal seat valve does not has impaired, and fluid will not from valve body valve pocket (i.e.
Pipeline) in (i.e. at Fig. 1 arrow B) be flowed in lumen (i.e. no pressure in lumen), again due between Y and Z produce face
Product moment, adds the pre-police strength of spring, so that arbitrarily metal seat valve is all pushed spool sphere to and realized sealing；When any one gold
When genus valve seat is impaired, fluid pressure can be flowed into lumen from valve body valve pocket, thus (pressure is from C to cause generation pressure in lumen
Direction enters lumen), owing to the pressure in lumen acts on the center position of contact surface between metal seat valve and spool, the most directly
Footpath X, but the area that diameter X is less than diameter Y, so the fluid pressure being positioned at valve body valve pocket can reversely promote metal valve
Seat moves towards spool sphere direction, so that metal seat valve is enclosed on spool so that when the valve is closed, is positioned at middle control
Interior fluid will not therefrom be controlled and flow out at downstream metal valve seat, plays airtight effect, such that it is able to increase the safety of valve,
The service life of valve can also be increased.
The most perfect, metal seat valve front end face is fixed with the seat ring coordinated with spool.Here seat ring selects DEVLON valve
Seat ring, the effect of seat ring here is, after the abrasion of triangle fluorubber or damaging, it is airtight that seat ring can play second
Effect, when preventing triangle fluorubber from wear and tear, directly generation fluid leakage is in lumen, adds the sealing of valve, also increases
Add the service life of valve.
The most perfect, the front end face of metal seat valve is metal grinding face.Its front end face is that the effect in metal grinding face is, uses
In the 3rd airtight effect in road that valve is leakage-preventing, when the most impaired inefficacy of triangle fluorubber and seat ring, by the spring of spring
Power and fluid pressure so that metal seat valve pressurized, its front end face is sealed on spool sphere, plays sealing function, i.e. metal
Valve seat front end face seals, when firing condition, when high temperature causes triangle fluorubber and seat ring impaired, metal valve occur
Seat can be high temperature resistant, can play the effect of sealed valve, so metal seat valve (its front end face is metal grinding face) now
Fire-proof function can also be realized.
The most perfect, leave D gap between spool end face and the valve pocket of valve body, the size in D gap is 1mm.When pipeline pressure
When the abnormal extreme environment raised of power (i.e. in valve valve pocket) makes metal seat valve generation micro-deformation, reserved 1 millimeter of master of cracking
Syllabus is still to make, valve seat bracing ring (i.e. metal seat valve) small sway all the time with spool with in the heart without causing
The leakage of valve.
The most perfect, it is fixed with gripper shoe bottom the valve pocket of valve body, the bottom of spool is fixed with cylindrical piece, cylindrical piece grafting
On the supporting plate.Here ball valve uses supporting plate structure to make the valve rod of driving valve core rotation be not subject to medium thrust, reduces moment of torsion,
Valve is more stable.
This utility model has the advantages that: this utility model smart structural design, rationally, utilizes ladder platform on metal seat valve
The diameter X of sealing surface middle, its diameter between diameter Z on one, diameter Y, spool and the metal seat valve on ladder platform two
Y more than diameter X more than diameter Z, so the pressure of the biggest suffered fluid of area is the biggest, from regardless of whether any metal seat valve
The most impaired causing produces pressure in lumen, metal seat valve all can be made to move towards spool sphere direction, such that it is able to significantly carry
The safety of high valve, it is also possible to increase the service life of valve, be worthy of popularization.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the a-quadrant partial enlarged drawing of Fig. 1.
Description of reference numerals: valve body 1, spool 2, cylindrical piece 2-1, metal seat valve 3, ladder platform one 3-1, ladder platform two 3-2,
Metal grinding face 3-3, spring 4, triangle fluorubber 5, seat ring 6, D gap 7, gripper shoe 8, lumen 9.
Detailed description of the invention
The utility model is described in further detail below in conjunction with the accompanying drawings:
Referring to the drawings: this superpower sealing performance high pressure double-piston ball valve, including valve body 1 and be positioned at valve body 1 valve pocket
Spool 2, the left and right sides of spool 2 is all combined with metal seat valve 3, and metal seat valve 3 outer end is staged, metal seat valve 3
Outer end be plugged on the two ends, left and right of valve body 1 valve pocket, the outer end of valve seat 3 includes ladder platform one 3-1 and ladder platform two 3-2,
A diameter of Z of ladder platform one 3-1, a diameter of Y of ladder platform two 3-2, spool 2 and valve seat 3 sealing surface middle a diameter of X, Y
More than X more than Z, it is provided with spring 4 between valve body 1 and metal seat valve 3, the front end face of metal seat valve 3 is fixed with and valve
The triangle fluorubber 5 that core 2 coordinates.
Metal seat valve 3 front end face is fixed with the seat ring 6 coordinated with spool 2.
The front end face of metal seat valve 3 is metal grinding face 3-3.
Leaving D gap 7 between metal seat valve 3 end face and valve body 1 valve pocket, the size in D gap 7 is 1mm.
Being fixed with gripper shoe 8 bottom valve body 1 valve pocket, the bottom of spool 2 is fixed with cylindrical piece 2-1, cylindrical piece 2-1 and is plugged on
In gripper shoe 8.
The operation principle of this valve: due to diameter Y more than diameter X more than diameter Z, so being arranged on spool 2 both sides, no matter
When which metal seat valve 3 is impaired, the fluid pressure suffered by metal seat valve 3 all can promote metal seat valve 3 towards spool 2 side
To pressing, Sealing ball-valve, its principle is: when any metal seat valve 3 does not has impaired, fluid will not from valve body valve pocket (i.e.
Pipeline) in (i.e. at Fig. 1 arrow B) be flowed in lumen 9 (i.e. no pressure in lumen 9), again due between Y and Z produce
Dough product moment, adds the pre-police strength of spring 4, so that metal seat valve 3 is pushed spool 2 sphere to from A direction and realized sealing；
When any one metal seat valve 3 is impaired, fluid can be flowed into lumen 9 from valve body 1 valve pocket due to pressure, thus causes
Lumen 9 produces pressure (pressure enters lumen 9 from C direction), due to the face of the pressure action metals valve seat 3 in lumen 9
Amass as the area of the center position of contact surface between metal seat valve 3 and spool 2, i.e. diameter X, but diameter X is less than straight
The area of footpath Y, so the fluid pressure being positioned at valve body 1 valve pocket can reversely promote opposite side not have impaired metal seat valve 3 court
Move to spool 2 sphere direction, so that opposite side does not has distressed metal valve seat 3 to be enclosed on spool 2 so that when valve closes
When closing, the fluid being positioned at middle control 9 will not therefrom control outflow downstream metal valve seat 3 at 9, preferably plays airtight effect, from
And the safety of valve can be increased, it is also possible to increase the service life of valve；So, use Double-sealing metal valve seat, can
It is greatly prolonged the service life of valve, it is generally the case that the damage probability of 3, upstream end metallic valve is much larger than downstream metal
Valve seat 3, when the upstream metal valve seat 3 of double-piston metal seat valve exists and necessarily reveals, downstream metal valve seat 3 can be by this portion
The medium dividing leakage blocks completely, and therefore, sealing property is relatively reliable.
Although this utility model is by being shown and described with reference to preferred embodiment, but, this specialty ordinary skill
Personnel are it is to be appreciated that in the range of claims, can make the various change in form and details.
Claims (5)
- null1. a superpower sealing property high pressure double-piston ball valve，Including valve body (1) and the spool (2) that is positioned at valve body (1) valve pocket，It is characterized in that: the left and right sides of described spool (2) is all combined with metal seat valve (3)，Described metal seat valve (3) outer end is staged，The outer end of described valve seat (3) is plugged on the two ends, left and right of valve body (1) valve pocket，The outer end of described metal seat valve (3) includes ladder platform one (3-1) and ladder platform two (3-2)，A diameter of Z of described ladder platform one (3-1),A diameter of Y of described ladder platform two (3-2),The a diameter of X in sealing surface middle between described spool (2) and metal seat valve (3),Described Y is more than Z more than X，Spring (4) it is provided with between described valve body (1) and metal seat valve (3)，The triangle fluorubber (5) coordinated with spool (2) it is fixed with on the front end face of described metal seat valve (3).
- Superpower sealing property high pressure double-piston ball valve the most according to claim 1, is characterized in that: described metal seat valve (3) front end face is fixed with the seat ring (6) coordinated with spool (2).
- Superpower sealing property high pressure double-piston ball valve the most according to claim 2, is characterized in that: the front end face of described metal seat valve (3) is metal grinding face (3-1).
- Superpower sealing property high pressure double-piston ball valve the most according to claim 1, it is characterized in that: leaving D gap (7) between described metal seat valve (3) end face and valve body (1) valve pocket, the size of described D gap (7) is 1mm.
- 5. according to the superpower sealing property high pressure double-piston ball valve described in claim 1-4 any one, it is characterized in that: bottom described valve body (1) valve pocket, be fixed with gripper shoe (8), the bottom of described spool (2) is fixed with cylindrical piece (2-1), and described cylindrical piece (2-1) is plugged in gripper shoe (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620301007.1U CN205479467U (en) | 2016-04-12 | 2016-04-12 | Superstrong sealing performance high pressure double -piston ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620301007.1U CN205479467U (en) | 2016-04-12 | 2016-04-12 | Superstrong sealing performance high pressure double -piston ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205479467U true CN205479467U (en) | 2016-08-17 |
Family
ID=56639999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620301007.1U Expired - Fee Related CN205479467U (en) | 2016-04-12 | 2016-04-12 | Superstrong sealing performance high pressure double -piston ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205479467U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286921A (en) * | 2016-10-21 | 2017-01-04 | 江苏神通阀门股份有限公司 | A kind of containment access lock equilibrated valve |
| WO2019140855A1 (en) * | 2018-01-18 | 2019-07-25 | 贺增华 | Fixed ball valve |
-
2016
- 2016-04-12 CN CN201620301007.1U patent/CN205479467U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286921A (en) * | 2016-10-21 | 2017-01-04 | 江苏神通阀门股份有限公司 | A kind of containment access lock equilibrated valve |
| WO2019140855A1 (en) * | 2018-01-18 | 2019-07-25 | 贺增华 | Fixed ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20200412 |