CN206299809U - High temperature valve sealing structure - Google Patents
High temperature valve sealing structure Download PDFInfo
- Publication number
- CN206299809U CN206299809U CN201621414029.5U CN201621414029U CN206299809U CN 206299809 U CN206299809 U CN 206299809U CN 201621414029 U CN201621414029 U CN 201621414029U CN 206299809 U CN206299809 U CN 206299809U
- Authority
- CN
- China
- Prior art keywords
- valve
- upper bush
- packing ring
- valve element
- piston packing
- 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
- Lift Valve (AREA)
Abstract
The utility model is related to industrial valves technical field,More particularly, to a kind of high temperature valve sealing structure,Including valve body and the valve element being arranged in valve body,One end in the valve body positioned at the valve element is provided with seal valve seat,The valve element is contacted with seal valve seat,Also include the upper bush being arranged in valve body,The upper bush matches with the valve element,The valve element is slidably arranged in upper bush,The upper bush is located at the one end of the valve element away from seal valve seat,The valve element is provided with seal assembly with the upper bush at least one of which,The seal assembly is located between the valve element and the contact surface of upper bush,The seal assembly includes annular seal groove and the piston packing ring being arranged in annular seal groove,The piston packing ring is the conical surface with the contact surface of the annular seal groove,The utility model simple structure,It is easy to maintenance,With good sealing effectiveness,Improve the leakage class of valve body.
Description
Technical field
The utility model is related to industrial valves technical field, more particularly, to a kind of high temperature valve sealing structure.
Background technology
With continuing to develop for China's industrial technology, the requirement of leakage rate also more and more higher is allowed for valve, at this stage
The means for improving valve leak grade mainly have two kinds：One is that valve element is unbalanced structure, the output by increasing executing agency
Power is realized, but the requirement of large bore valves and High Pressure Difference operating mode to executing agency is very high, both uneconomical or be unfavorable for that valve is whole
Machine performance；Two is that spool design is balance type structure, and sealing is realized by balanced seal circle and piston packing ring, balanced seal circle
Sealing property is excellent, and its material is nonmetallic materials, it is impossible to used in high temperature environments, though and pot type piston sealing ring is resistant to
High temperature but can only reluctantly meet ANSI/FCIIV grades of leakage rate, for the leakage class of requirements at the higher level, high temperature plays formula structure mistake in advance
In complexity, and it is unfavorable for cost control.
Utility model content
The technical problems to be solved in the utility model is：In order to solve valve element for unbalanced structure, by increasing execution machine
The power output of structure is realized, but the requirement of large bore valves and High Pressure Difference operating mode to executing agency is very high, both uneconomical or unfavorable
In valve overall performance, and spool design is balance type structure, and sealing, balance are realized by balanced seal circle and piston packing ring
The sealing property of sealing ring is excellent, but its material is nonmetallic materials, it is impossible to use in high temperature environments, and pot type piston is sealed
Though ring high temperature resistant but can only can reluctantly meet ANSI/FCIIV grades of leakage rate, for the leakage class of requirements at the higher level, high temperature rises in advance
Formula structure is excessively complicated, and is unfavorable for the problem of cost control, now there is provided a kind of high temperature valve sealing structure.
The utility model solves the technical scheme that its technical problem used：A kind of high temperature valve sealing structure, including
One end in valve body and the valve element being arranged in valve body, the valve body positioned at the valve element is provided with seal valve seat, the valve element
Contacted with seal valve seat, also including the upper bush being arranged in valve body, the upper bush matches with the valve element, the valve element
Be slidably arranged in upper bush, the upper bush be located at the valve element away from seal valve seat one end, the valve element with it is described on
Sleeve at least one of which is provided with seal assembly, and the seal assembly is located between the valve element and the contact surface of upper bush,
The seal assembly includes annular seal groove and the piston packing ring being arranged in annular seal groove, the piston packing ring and institute
The contact surface of annular seal groove is stated for the conical surface, the conical surface is located at the one end of annular seal groove away from seal valve seat, the annular
The cross-sectional area of seal groove gradually increases from inside to outside, and the annular seal groove is provided with water conservancy diversion away from one end of the conical surface
Angle, the piston packing ring offers annular indent near one end of channelization angle, connects at the annular indent and the channelization angle
It is logical.Piston packing ring is the conical surface with the contact surface of annular seal groove, and after medium entrance, medium pushes up piston packing ring upwards, by
In the effect of the conical surface so that piston packing ring is brought into close contact, it is ensured that the good sealing of piston packing ring；On piston packing ring
Annular indent so that the pressure that medium is acted on annular sealing ring is uniform, it is ensured that piston packing ring is stable and reliable in work；Together
When annular seal groove on channelization angle, guide effect is played to medium, facilitate medium act on piston packing ring annular pressure
In groove, when valve works in hot environment, the pressure medium comprehensive function before the tension force that piston packing ring is had by oneself with valve
Under so that there is small displacement in piston packing ring, and keep piston packing ring to be close to state along the conical surface, good to reach
Sealing effectiveness, improves the sealing property of valve, while also improving the leakage class of valve body.
Further, the piston packing ring is provided with some relief grooves away from the side of annular seal groove.Relief groove be for
The depressurization of piston packing ring sealing surface, and for reducing the frictional force of sealing surface.
Further, the piston packing ring is provided with cutting edge near one end of the conical surface.The purpose of cutting edge is to ensure to live
Plug sealing ring has the trend of extruding in medium top pressure.
Further, the angle a between the conical surface and horizontal plane is 12 ° -15 °.
Further, the angle b between the channelization angle and the plane for crossing horizontal plane vertical line is 18 ° -25 °.
Further, lower sleeve is provided with the valve body, the lower sleeve is located between the upper bush and seal valve seat.
The beneficial effects of the utility model are：The utility model high temperature valve sealing structure when in use, piston packing ring
It is the conical surface with the contact surface of annular seal groove, after medium entrance, medium pushes up piston packing ring upwards, due to the effect of the conical surface,
So that piston packing ring is brought into close contact, it is ensured that the good sealing of piston packing ring；Annular indent on piston packing ring, makes
The pressure that acts on annular sealing ring of medium is uniform, it is ensured that piston packing ring is stable and reliable in work；While annular seal groove
On channelization angle, guide effect is played to medium, facilitate medium to act in the annular indent on piston packing ring, when valve exists
When being worked in hot environment, under the pressure medium comprehensive function before the tension force that piston packing ring is had by oneself with valve so that piston is close
There is small displacement in seal ring, and keep piston packing ring to be close to state along the conical surface, to reach good sealing effectiveness, improve
The sealing property of valve, while also improving the leakage class of valve body, the utility model simple structure is easy to maintenance, has
Good sealing effectiveness, improves the leakage class of valve body.
Brief description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is the front view of the utility model high temperature valve sealing structure embodiment 1；
Fig. 2 is the partial enlarged drawing of A in Fig. 1；
Fig. 3 is the structural representation of the annular seal groove of the utility model high temperature valve sealing structure embodiment 1；
Fig. 4 is the front view of the utility model high temperature valve sealing structure embodiment 2；
Fig. 5 is the partial enlarged drawing of B in Fig. 4；
Fig. 6 is the front view of the utility model high temperature valve sealing structure embodiment 3；
Fig. 7 is the partial enlarged drawing of C in Fig. 6；
Fig. 8 is the front view of piston packing ring in the utility model high temperature valve sealing structure.
In figure：1st, valve body, 2, valve element, 3, seal valve seat, 4, upper bush, 5, annular seal groove, 6, piston packing ring, 601,
Annular indent, 602, relief groove, 603, cutting edge, 7, channelization angle, 8, lower sleeve, the angle between a, the conical surface and horizontal plane, is led b
Angle between stream angle and the plane for crossing horizontal plane vertical line.
Specific embodiment
Presently in connection with accompanying drawing, the utility model is described in more detail.These accompanying drawings are simplified schematic diagram,
Basic structure of the present utility model is only illustrated in a schematic way, therefore it only shows the composition relevant with the utility model.
Embodiment 1
As shown in Fig. 1,2,3 and 8, a kind of high temperature valve sealing structure, including valve body 1 and the valve element that is arranged in valve body 1
2, the one end in the valve body 1 positioned at the valve element 2 is provided with seal valve seat 3, and the valve element 2 is contacted with seal valve seat 3, valve element
2 is sealing surface with the contact surface of seal valve seat 3, also including the upper bush 4 being arranged in valve body 1, the upper bush 4 and the valve
Core 2 matches, and the valve element 2 is slidably arranged in upper bush 4, and the upper bush 4 is located at the valve element 2 away from seal valve seat 3
One end, offer annular seal groove 5 on the contact surface of the upper bush 4 of the valve element 2, is provided with piston in the annular seal groove 5
Sealing ring 6, the piston packing ring 6 is the conical surface with the contact surface of the annular seal groove 5, and the conical surface is located at annular seal groove
5 away from seal valve seat 3 one end, the cross-sectional area of the annular seal groove 5 gradually increases from inside to outside, the ring packing
Groove 5 is provided with channelization angle 7 away from one end of the conical surface, and the piston packing ring 6 offers annular pressure near one end of channelization angle 7
Groove 601, the annular indent 601 is connected with the channelization angle 7.
The piston packing ring 6 is provided with some relief grooves 602 with the contact surface of upper bush 4.
The piston packing ring 6 is provided with cutting edge 603 near one end of the conical surface.
Angle a between the conical surface and horizontal plane is 15 °.
Angle b between the channelization angle 7 and the plane for crossing horizontal plane vertical line is 20 °.
Lower sleeve 8 is provided with the valve body 1, the lower sleeve 8 is located between the upper bush 4 and seal valve seat 3.Valve body
1 is provided with media inlet end and media outlet end.
Above-mentioned high temperature valve sealing structure when in use, by offering annular seal groove 5 on valve element 2, medium be
Annular seal groove 5 enters near the side of seal valve seat 3, and piston packing ring 6 is entered under the guide effect of channelization angle 7
In annular indent 601, annular indent 601 causes that medium effect is uniform with the active force of piston packing ring 6, in the presence of medium
Piston packing ring 6 is pushed up upwards, because the contact surface of the annular seal groove 5 on piston packing ring 6 and valve element 2 is the conical surface, the conical surface
Positioned at annular seal groove 5 away from seal valve seat 3 one end, piston packing ring 6 is extruded and is close to the inwall of upper bush 4, piston
Cutting edge 603 on sealing ring 6 causes to be stressed the trend of the extruding of oriented upper bush 4, and the relief groove 602 on piston packing ring 6
Play a part of to depressurize and reduce friction, when valve body 1 is in hot environment, in the free tension of piston packing ring 6 and valve body 1
Medium comprehensive function under so that there is micro-displacement along the conical surface in piston packing ring 6, while be close to the inwall of upper bush 4, with
Good sealing effectiveness is reached, the sealing property of valve is improve.
Embodiment 2
Embodiment 2 is with the difference of embodiment 1：As shown in Figures 4 and 5, the contact with the valve element 2 of the upper bush 4
Annular seal groove 5 is offered on face.The piston packing ring 6 is provided with some relief grooves 602 with the contact surface of valve element 2.By ring
Shape seal groove 5 is opened on the inwall of upper bush 4, and the technique effect of the present embodiment is identical with technique effect in embodiment 1, equally
When valve body 1 is in hot environment, under the comprehensive function of the medium in the free tension of piston packing ring 6 and valve body 1 so that living
There is micro-displacement in plug sealing ring 6, while being close to the inwall of upper bush 4, to reach good sealing effectiveness, improve along the conical surface
The sealing property of valve.
Embodiment 3
Embodiment 3 is with the difference of embodiment 1 and embodiment 2：As shown in Figures 6 and 7, the valve element 2 and the upper set
Offer annular seal groove 5 on the contact surface of cylinder 4, the contact surface of the upper bush 4 and the valve element 2 also on to offer annular close
Sealing groove 5.The piston packing ring 6 is provided with some relief grooves 602, the piston packing ring 6 and valve with the contact surface of upper bush 4
Some relief grooves 602 also are provided with the contact surface of core 2.Annular seal groove 5 is offered on valve element 2, while being also upper bush 4
Also annular seal groove 5 is offered on inwall, the technique effect of the present embodiment is identical with technique effect in embodiment 1, equally works as valve
When body 1 is in hot environment, under the comprehensive function of the medium in the free tension of piston packing ring 6 and valve body 1 so that piston is close
There is micro-displacement in seal ring 6, while being close to the inwall of upper bush 4, to reach good sealing effectiveness, improve valve along the conical surface
Sealing property.
Above-mentioned is enlightenment according to desirable embodiment of the present utility model, by above-mentioned description, relevant staff
Various changes and amendments can be carried out in the range of without departing from this utility model technological thought completely.This practicality
New technical scope is not limited to the content on specification, it is necessary to determine its according to right technical
Scope.
Claims (6)
1. a kind of high temperature valve sealing structure, including valve body (1) and the valve element (2) being arranged in valve body (1), the valve body (1)
Interior one end positioned at the valve element (2) is provided with seal valve seat (3), and the valve element (2) contacts with seal valve seat (3), its feature
It is：Also include the upper bush (4) being arranged in valve body (1), the upper bush (4) matches with the valve element (2), the valve
Core (2) is slidably arranged in upper bush (4), the upper bush (4) positioned at the valve element (2) away from seal valve seat (3) one end,
The valve element (2) is provided with seal assembly with the upper bush (4) at least one of which, and the seal assembly is located at the valve element
(2) and the contact surface of upper bush (4) between, the seal assembly includes annular seal groove (5) and is arranged on annular seal groove (5)
Interior piston packing ring (6), the piston packing ring (6) is the conical surface, the conical surface with the contact surface of the annular seal groove (5)
Positioned at annular seal groove (5) away from seal valve seat (3) one end, the cross-sectional area of the annular seal groove (5) is from inside to outside
Gradually increase, the annular seal groove (5) is provided with channelization angle (7) away from one end of the conical surface, the piston packing ring (6) is leaned on
One end of nearly channelization angle (7) offers annular indent (601), and the annular indent (601) connects with the channelization angle (7) place.
2. high temperature valve sealing structure according to claim 1, it is characterised in that：The piston packing ring (6) is away from ring
The side of shape seal groove (5) is provided with some relief grooves (602).
3. high temperature valve sealing structure according to claim 1, it is characterised in that：The piston packing ring (6) is near cone
The one end in face is provided with cutting edge (603).
4. high temperature valve sealing structure according to claim 1, it is characterised in that：Folder between the conical surface and horizontal plane
Angle (a) is 12 ° -15 °.
5. high temperature valve sealing structure according to claim 1, it is characterised in that：The channelization angle (7) and horizontal plane excessively
Angle (b) between the plane of vertical line is 18 ° -25 °.
6. high temperature valve sealing structure according to claim 1, it is characterised in that：Lower sleeve is provided with the valve body (1)
(8), the lower sleeve (8) is between the upper bush (4) and seal valve seat (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621414029.5U CN206299809U (en) | 2016-12-19 | 2016-12-19 | High temperature valve sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621414029.5U CN206299809U (en) | 2016-12-19 | 2016-12-19 | High temperature valve sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206299809U true CN206299809U (en) | 2017-07-04 |
Family
ID=59213804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621414029.5U Active CN206299809U (en) | 2016-12-19 | 2016-12-19 | High temperature valve sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206299809U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111379863A (en) * | 2018-12-28 | 2020-07-07 | 浙江三花制冷集团有限公司 | Flow control valve |
-
2016
- 2016-12-19 CN CN201621414029.5U patent/CN206299809U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111379863A (en) * | 2018-12-28 | 2020-07-07 | 浙江三花制冷集团有限公司 | Flow control valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206299809U (en) | High temperature valve sealing structure | |
| CN203784384U (en) | Novel lift check valve | |
| CN205715028U (en) | A kind of super-pressure hydraulic control check valve | |
| CN204214593U (en) | Pressure ga(u)ge damper | |
| CN203809701U (en) | Multi-purpose adjusting-type stop valve | |
| CN208364919U (en) | Water stop mechanism | |
| CN203628011U (en) | Out-leakage-preventing self-sealing valve | |
| CN206299798U (en) | Floated control valve | |
| CN203272861U (en) | Three-way positioning V-shaped adjusting ball valve | |
| CN207539421U (en) | A kind of guide electromagnetic valve | |
| CN208456538U (en) | Cross cable hydraulic tubing anchor | |
| CN208268439U (en) | High temperature and pressure antiseep labyrinth adjusting valve | |
| CN208107386U (en) | A kind of novel oilfield water injection well valve | |
| CN202708300U (en) | Pressure-balancing high pressure stop valve | |
| CN203404448U (en) | Multipurpose three-inlet spiral-flow type flow control device | |
| CN201891867U (en) | Novel tetrafluoro lined ball valve | |
| CN206786060U (en) | A kind of guide diaphragm type electromagnetic driven stop valve | |
| CN205859570U (en) | Comprehensive ne-leakage grease pump | |
| CN205592447U (en) | Shut -down self -closing valve | |
| CN205918936U (en) | Ball valve | |
| CN206017836U (en) | A kind of plug valve | |
| CN206458591U (en) | A kind of inlet valve of vacuum booster pump | |
| CN202031613U (en) | Large-flow safety valve used for hydraulic oil cylinder of hydraulic support | |
| CN103953733B (en) | Novel stop valve | |
| CN212745088U (en) | Single-seat soft-hard combined sealing leakage-free regulating valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |