CN206439426U - Heavy caliber control valve piston ring structure - Google Patents
Heavy caliber control valve piston ring structure Download PDFInfo
- Publication number
- CN206439426U CN206439426U CN201720080712.8U CN201720080712U CN206439426U CN 206439426 U CN206439426 U CN 206439426U CN 201720080712 U CN201720080712 U CN 201720080712U CN 206439426 U CN206439426 U CN 206439426U
- Authority
- CN
- China
- Prior art keywords
- ring
- support ring
- plane
- sleeve
- valve
- 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
Landscapes
- Details Of Valves (AREA)
Abstract
The utility model is related to control valve technical field, more particularly to it is a kind of suitable for high temperature and high pressure condition, with high-leakage grade, it is anti-jamming, the heavy caliber control valve valve piston ring structure of anti-lock feature, including bonnet, valve body, sleeve, valve element, valve rod and valve seat, bonnet, is fixedly mounted on the upper end of valve body, sleeve is fixedly mounted in valve element installation passage, the upper end of sleeve is fixedly connected with the bottom of bonnet, valve seat is fixedly connected on the lower end of sleeve, valve element is slidably mounted in sleeve, valve rod is interspersed in bonnet, and is fixedly connected with valve element upper end, shape metallic leak-proof structure is provided between valve element outer ring and sleeve inner ring, shape metallic leak-proof structure includes upper support ring, lower support ring and ring assembly, ring assembly is arranged between support ring and lower support ring.Heavy caliber control valve of the present utility model, simple and reliable for structure, processing is simple, easy installation and removal.
Description
Technical field
The utility model is related to control valve technical field, more particularly to a kind of suitable for high temperature and high pressure condition, is let out with height
Leak grade, anti-jamming, anti-lock feature heavy caliber control valve piston ring structure.
Background technology
Existing heavy caliber control valve is as shown in figure 1, be sealing structure at A1.In control valve industry, in order to reduce execution
The thrust output of mechanism, heavy caliber control valve is designed as balance type structure, and the sealing ring in high temperature and high pressure condition valve body is used
Piston ring structure, the diameter of piston ring is also in more than 0.4m, and valve is under full off state, sealing the opening by piston ring of valve
Sealing is realized in cooperation in the middle of power and sleeve, because the processing technology of the piston ring of heavy caliber at home is immature, causes to live
The tension force of plug ring is unstable, if overtension causes the easy locking in the middle of worst hot case lower piston ring and sleeve, if
Tension force is too small, causes amount of leakage exceeded.And purchase the piston packing ring of external import then procurement cycle is long, purchase cost is high.
Utility model content
The technical problems to be solved in the utility model is：In order to solve heavy caliber control valve conventional piston under worst hot case
Ring leakage rate is big, easy locking, the high technical problem of cost, and the utility model provides a kind of heavy caliber control valve, in HTHP
Reliable sealing can be realized under operating mode, and is the combined metal sealing ring of anti-lock, and cost is low, and processing technology simply may be used
Lean on.
The utility model solves the technical scheme that its technical problem used：A kind of heavy caliber control valve piston ring knot
Structure, including bonnet, valve body, sleeve, valve element, valve rod and valve seat, the both sides of the valve body are respectively arranged with and body cavity phase
Logical inlet and outlet, the upper end of valve body is provided with the valve element installation passage communicated with body cavity, and the bonnet, fixes peace
Mounted in the upper end of valve body, sleeve is fixedly mounted in valve element installation passage, and the upper end of sleeve is fixedly connected with the bottom of bonnet,
Valve seat is fixedly connected on the lower end of sleeve, and valve element is slidably mounted in sleeve, valve rod be interspersed in bonnet, and with valve element upper end
It is fixedly connected, shape metallic leak-proof structure is provided between the valve element outer ring and sleeve inner ring, the shape metallic leak-proof structure includes upper
Support ring, lower support ring and ring assembly, ring assembly are arranged between support ring and lower support ring.
When sleeve is influenceed endoporus to reduce by high-temperature medium, the gap adjust automatically between sealing ring seals ring group
Part external diameter shrinks the change for adapting to hub internal bore inwards automatically
When hub internal bore circularity is poor, the change of the adaptive hub internal bore of ring assembly circle energy prevents because of processing completely
Bite phenomenon caused by the influence of precision and the deformation of worst hot case lower sleeve endoporus between sleeve and valve element, and can reach
To tight reliable sealing.
The valve element outer ring offers the circumferential seal groove for installing ring assembly, and ring assembly and sealing are recessed
Groove gap coordinates.
The opposite face of the upper support ring and lower support ring is inclined-plane, the inclined-plane of the inclined-plane of upper support ring and lower support ring
Symmetrically, the distance between two inclined-planes gradually increase from inside to outside, between the inclined-plane of the inclined-plane of upper support ring and lower support ring
Trapezoidal notch is formed, the ring assembly includes sealing ring and the collar with opening, and the sealing ring upper surface is upper oblique
Face, the ramp is engaged with the inclined-plane of upper support ring, and the lower surface of sealing ring is lower inclined plane, the lower inclined plane and lower support
The inclined-plane of ring is engaged, and the section of sealing ring is trapezoidal, and sealing ring is arranged in trapezoidal notch and is engaged with trapezoidal notch, close
The outer ring of seal ring is further opened with circumferential trapezoidal neck, and collar is connected to sealing ring banding in trapezoidal neck in sealed groove
Interior, collar and sleeve inner ring can be tangent.
Angle between the inclined-plane of the upper support ring and the inclined-plane and horizontal plane of lower support ring is equal, and the angle is
30-35°。
The inclined-plane of the upper support ring and the inclined-plane of lower support ring offer U-lag.U-lag main function is by one
Face is divided into two faces and the contact of incline plane on sealing ring 81, and medium reaches two U-lags 74 by inclined-plane, by throttling several times
Progressively level is reduced pressure, so as to play sealed effect.
The upper support ring and lower support ring race diameter 0.2-0.5mm smaller than sleeve inner ring diameter.
The upper support ring and lower support ring are respectively provided with opening, and the opening is 35-40 ° of oblique angle opening.
The sealing ring is made up of multistage sealing circular arc, and the gap between sealing circular arc is 0.2-0.5mm.Preferably five
Section.
The beneficial effects of the utility model are that heavy caliber control valve piston ring structure of the present utility model is simple in construction
Reliably, process simple, easy installation and removal, when sleeve is influenceed endoporus to reduce by high-temperature medium, between sealing ring between
Gap adjust automatically, ring assembly external diameter shrinks the change for adapting to hub internal bore inwards automatically.
When hub internal bore circularity is poor, the change of the adaptive hub internal bore of ring assembly circle energy prevents because of processing completely
Bite phenomenon caused by the influence of precision and the deformation of worst hot case lower sleeve endoporus between sleeve and valve element, and can reach
To tight reliable sealing.
Brief description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is the structural representation of prior art Large diameter control valve.
Fig. 2 is the structural representation of the utility model optimum embodiment.
Fig. 3 is A2 enlarged drawings in Fig. 2.
Fig. 4 is the structural representation of support ring on the utility model.
Fig. 5 is Fig. 4 top view.
Fig. 6 is the structural representation of the utility model sealing ring.
Fig. 7 is the structural representation that the utility model seals circular arc.
Fig. 8 is Fig. 7 B-B sectional views.
Fig. 9 is the structural representation of the utility model collar.
In figure：1st, bonnet, 2, valve body, 3, sleeve, 4, valve element, 5, valve rod, 6, valve seat, 71, upper support ring, 72, lower branch
Pushing out ring, 73, trapezoidal notch, 74, U-lag, 75, opening, 76, support platform, 81, sealing ring, 811, trapezoidal neck, 812, sealing
Circular arc, 82, collar.
Embodiment
The utility model is described in further detail presently in connection with accompanying drawing.These accompanying drawings are simplified schematic diagram,
Only illustrate basic structure of the present utility model in a schematic way, therefore it only shows the composition relevant with the utility model.
As shown in figs. 2-9, it is the utility model optimum embodiment, a kind of heavy caliber control valve piston ring structure, including
Bonnet, 1, valve body 2, sleeve 3, valve element 4, valve rod 5 and valve seat 6, the both sides of valve body 2 are respectively arranged with what is communicated with body cavity
Inlet and outlet, the upper end of valve body 2 is provided with the valve element installation passage communicated with body cavity, and bonnet, 1 is fixedly mounted on valve
The upper end of body 2, sleeve 3 is fixedly mounted in valve element installation passage, and the upper end of sleeve 3 is fixedly connected with the bottom of bonnet, 1, valve
The lower end that seat 6 is fixedly connected on sleeve 3, valve element 4 is slidably mounted in sleeve 3, valve rod 5 be interspersed in bonnet, 1 and with valve element 4
Upper end is fixedly connected, and shape metallic leak-proof structure is provided between the outer ring of valve element 4 and the inner ring of sleeve 3, and shape metallic leak-proof structure includes upper branch
Pushing out ring 71, lower support ring 72 and ring assembly, ring assembly are arranged between support ring 71 and lower support ring 72.
The outer ring of valve element 4 offers the circumferential seal groove for installing ring assembly, ring assembly and sealed groove
Gap coordinates.The opposite face of upper support ring 71 and lower support ring 72 is inclined-plane, the inclined-plane of upper support ring 71 and lower support ring 72
Inclined-plane symmetrically, the distance between two inclined-planes gradually increase from inside to outside, and upper support ring 71 and lower support ring 72 are shapes
Duplicate two rings, simply one of them changes direction installation when mounted so that the inclined-plane of upper support ring 71 is with
Trapezoidal notch 73 is formed between the inclined-plane of support ring 72, trapezoidal notch 73 is also due to ring assembly positioned at the upper He of support ring 71
Just formed between lower support ring 72, if no ring assembly is supported between support ring 71 and lower support ring 72, on
Support ring 71 and lower support ring 72 are mutually pressed close to, and trapezoidal notch 73 is then triangular notch.The inclined-plane of upper support ring 71 and lower branch
Angle between the inclined-plane of pushing out ring 72 and horizontal plane is equal, and angle is 30-35 °.The inclined-plane of upper support ring 71 and lower support ring 72
Inclined-plane be outward extended with support platform 76 close to outside end.
The inclined-plane of upper support ring 71 and the inclined-plane of lower support ring 72 offer U-lag 74.U-lag 74 be opened in inclined-plane by
At 1/3 from inside to outside, the depth and width of U-lag 74 be 1.2-1.5mm between, upper support ring 71 and the lower race diameter of support ring 72
Than the small 0.2-0.5mm of the inner ring diameter of sleeve 3.Upper support ring 71 and lower support ring 72 are respectively provided with opening 75, and opening 75 is 35-40 °
Oblique angle opening.
Ring assembly include sealing ring 81 and the collar 82 with opening, collar 82 be steel wire collar, sealing ring 81 by
Five sections of sealing circular arcs 812 constitute (hop count is adjusted according to the diameter of sealing ring, and diameter is bigger, and quantity is more), seal circular arc
Gap between 812 is 0.2-0.5mm.The upper surface of sealing ring 81 is ramp, and ramp and the inclined-plane of upper support ring 71 match
Close, ramp is outward extended with upper mounting plate close to outside end, the support platform 76 of upper mounting plate and upper support ring 71 is engaged,
The lower surface of upper sealing ring 81 is lower inclined plane, and lower inclined plane is engaged with the inclined-plane of lower support ring 72, and lower inclined plane is close to outside end
Hold and be outward extended with lower platform, the support platform 76 of lower platform and lower support ring 72 is engaged, and all platforms are all shorter, sealing ring
81 section is substantially trapezoidal, and sealing ring 81 is arranged in trapezoidal notch 73 and is engaged with trapezoidal notch 73, sealing ring 81
Outer ring is further opened with the circumferential trapezoidal neck 811 of three circles, and collar 82 is connected to the banding of sealing ring 81 in trapezoidal neck 811 close
Seal in groove, the section circular diameter of the size design on trapezoidal 811 4 sides of neck just with collar 82 is tangent, and five sections of identicals are close
It is sealing ring 81 that envelope circular arc 812, which constitutes a domain, and the hole size of cylindrical and sleeve 3 of sealing ring 81 is consistent with the endoporus of sleeve 3
Dimensional fits tolerance clearance is 0.05-0.01mm.Three identical steel wire collars 82 are stuck in three trapezoidal cards of ring assembly
In groove 811, the diameter of steel wire collar 82 after overall package is good cannot be greater than the diameter of bore of sleeve 3 and steel wire collar 82 it is cylindrical with
Trapezoidal 811 3 faces of neck and the inwall of sleeve 3 are tangent.Sealing ring 81 uses metallic packing ring.
As shown in figure 3, pressure medium (arrow show pressure in Fig. 3) is born in metallic packing ring side, work as pressure medium
Lower support ring 72 is promoted to move up when acting on 72 bottom surface of support ring under diagram so as to move, and reduce outside ring assembly
With the gap of the inwall of sleeve 3, sealed effect is played.In 82 groups of the trapezoidal neck 811 of the outside of sealing ring 81 increase and steel wire collar
Into the space of several isolation, when medium passes through the gap between sleeve 3 and piston ring, medium passes through the space of these isolation
By choke pressure several times, progressively level is reduced, so as to play sealed effect.U in upper support ring 71 and the lower inclined-plane of support ring 72
Shape groove 74 (or can also be rectangular channel) main function is that a face is divided into two faces to connect with the inclined-plane on sealing ring 81
Touch, medium reaches two U-lags 74 by inclined-plane, by choke pressure several times, progressively level is reduced, so as to play sealed effect.
Using it is above-mentioned according to desirable embodiment of the present utility model as enlightenment, pass through above-mentioned description, related work people
Member can carry out various changes and amendments in the range of without departing from this utility model technological thought completely.This reality
The content on specification is not limited to new technical scope, it is necessary to its technology is determined according to right
Property scope.
Claims (8)
1. a kind of heavy caliber control valve piston ring structure, it is characterised in that：Including bonnet, (1), valve body (2), sleeve (3),
Valve element (4), valve rod (5) and valve seat (6), the both sides of the valve body (2) are respectively arranged with the import communicated with body cavity and gone out
Mouthful, the upper end of valve body (2) is provided with the valve element installation passage communicated with body cavity, and the bonnet, (1) is fixedly mounted on valve
The upper end of body (2), sleeve (3) is fixedly mounted in valve element installation passage, and the upper end of sleeve (3) is consolidated with the bottom of bonnet, (1)
Fixed connection, valve seat (6) is fixedly connected on the lower end of sleeve (3), and valve element (4) is slidably mounted in sleeve (3), and valve rod (5) interts
It is fixedly connected in bonnet, (1) and with valve element (4) upper end, gold is provided between the inner ring of valve element (4) outer ring and sleeve (3)
Belong to sealing structure, the shape metallic leak-proof structure includes upper support ring (71), lower support ring (72) and ring assembly, seals ring group
Part is arranged between support ring (71) and lower support ring (72).
2. heavy caliber control valve piston ring structure as claimed in claim 1, it is characterised in that：Open valve element (4) outer ring
Provided with the circumferential seal groove for installing ring assembly, ring assembly and sealed groove gap coordinate.
3. heavy caliber control valve piston ring structure as claimed in claim 2, it is characterised in that：The upper support ring (71) and
The opposite face of lower support ring (72) is inclined-plane, and the inclined-plane of upper support ring (71) and the inclined-plane of lower support ring (72) are symmetrical,
The distance between two inclined-planes gradually increase from inside to outside, shape between the inclined-plane of upper support ring (71) and the inclined-plane of lower support ring (72)
Notch (73) in echelon,
The ring assembly includes sealing ring (81) and the collar (82) with opening, and sealing ring (81) upper surface is upper
Inclined-plane, the ramp is engaged with the inclined-plane of upper support ring (71), and the lower surface of sealing ring (81) is lower inclined plane, described oblique
Face is engaged with the inclined-plane of lower support ring (72), and the section of sealing ring (81) is trapezoidal, and sealing ring (81) is arranged on trapezoidal notch
(73) it is engaged in and with trapezoidal notch (73), the outer ring of sealing ring (81) is further opened with circumferential trapezoidal neck (811), collar
(82) it is connected in trapezoidal neck (811) by sealing ring (81) banding in sealed groove, collar (82) and sleeve (3) inner ring phase
Cut.
4. heavy caliber control valve piston ring structure as claimed in claim 3, it is characterised in that：The upper support ring (71)
Angle between inclined-plane and the inclined-plane and horizontal plane of lower support ring (72) is equal, and the angle is 30-35 °.
5. heavy caliber control valve piston ring structure as claimed in claim 3, it is characterised in that：The upper support ring (71)
Inclined-plane and the inclined-plane of lower support ring (72) offer U-lag (74).
6. heavy caliber control valve piston ring structure as claimed in claim 3, it is characterised in that：The upper support ring (71) and
Lower support ring (72) race diameter is than sleeve (3) the small 0.2-0.5mm of inner ring diameter.
7. heavy caliber control valve piston ring structure as claimed in claim 3, it is characterised in that：The upper support ring (71) and
Lower support ring (72) is respectively provided with opening (75), and the opening (75) is 35-40 ° of oblique angle opening.
8. heavy caliber control valve piston ring structure as claimed in claim 3, it is characterised in that：The sealing ring (81) is by more
Gap between section sealing circular arc (812) composition, sealing circular arc (812) is 0.2-0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720080712.8U CN206439426U (en) | 2017-01-22 | 2017-01-22 | Heavy caliber control valve piston ring structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720080712.8U CN206439426U (en) | 2017-01-22 | 2017-01-22 | Heavy caliber control valve piston ring structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206439426U true CN206439426U (en) | 2017-08-25 |
Family
ID=59636135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720080712.8U Active CN206439426U (en) | 2017-01-22 | 2017-01-22 | Heavy caliber control valve piston ring structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206439426U (en) |
-
2017
- 2017-01-22 CN CN201720080712.8U patent/CN206439426U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105508627B (en) | A kind of manual balanced type valve of pressure duct | |
| CN107364656A (en) | A kind of raw material storage tanks for possessing feedstock transportation effect | |
| CN110185801A (en) | Special-shaped mesolow sealing ring | |
| CN206439426U (en) | Heavy caliber control valve piston ring structure | |
| CN104879521B (en) | Slurry dust wear resistance ball valve | |
| CN206398122U (en) | A kind of new multistage noise reduction V-type ball valve | |
| CN204437296U (en) | Embedded forging Y type is without bonnet stop valve | |
| CN203258083U (en) | Piston-type zero-leakage cut-off valve | |
| CN206988540U (en) | A kind of guided piston type high temperature normally open solenoid valve | |
| CN203730808U (en) | High-temperature and high-pressure self-balancing control valve | |
| CN207195694U (en) | A kind of novel cutoff valve | |
| CN207178853U (en) | A kind of guided piston type high-temperature solenoid valve | |
| CN206754370U (en) | Piston compressor leak sealing ring group | |
| CN206001015U (en) | Controlled fluid contact sealing device | |
| CN205605880U (en) | Thermal recovery steam control valve | |
| CN203516830U (en) | High-pressure balanced type three-way control valve | |
| CN210240601U (en) | Durable type stop valve case | |
| CN203477358U (en) | Self-sealing high-pressure steam control valve | |
| CN207064699U (en) | A kind of integral type HTHP seal ball-valve | |
| CN103244694B (en) | Piston type zero leakage stop valve | |
| CN107327579B (en) | Electronic expansion valve | |
| CN206274080U (en) | A kind of novel cutoff valve | |
| CN205859197U (en) | Cascade multi-level throttle equilibrated valve | |
| CN206299808U (en) | Control valve-use metal elastic sealing structure | |
| CN206530729U (en) | A kind of valve rod leak-proof structure of ball valve under water |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |