CN204805612U - Ball valve seal structure - Google Patents
Ball valve seal structure Download PDFInfo
- Publication number
- CN204805612U CN204805612U CN201520536452.1U CN201520536452U CN204805612U CN 204805612 U CN204805612 U CN 204805612U CN 201520536452 U CN201520536452 U CN 201520536452U CN 204805612 U CN204805612 U CN 204805612U
- Authority
- CN
- China
- Prior art keywords
- seal ring
- ring group
- valve seat
- valve body
- elastic component
- 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.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 claims abstract description 49
- 230000000694 effects Effects 0.000 claims abstract description 7
- 210000004907 gland Anatomy 0.000 claims description 27
- 238000003754 machining Methods 0.000 abstract description 6
- 230000005489 elastic deformation Effects 0.000 abstract description 2
- 239000011324 bead Substances 0.000 abstract 2
- 238000000034 method Methods 0.000 description 10
- 238000004146 energy storage Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 5
- 238000012856 packing Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000003892 spreading Methods 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Landscapes
- Taps Or Cocks (AREA)
Abstract
The utility model relates to a ball valve seal structure, including valve body, disk seat, sealing washer group, pressure cover and elastic component, the one end card of disk seat is gone into in the valve body, the disk seat can be relative endwise slip is done to the valve body, be equipped with between disk seat and the valve body along axially extended cavity, set up in the cavity sealing washer group, the one end of sealing washer group is supported and is leaned on on the circular bead of disk seat, the setting of pressing the cover can follow endwise slip is in in the cavity and lie in the other end of sealing washer group, it will under the effect of elastic component to press the cover to be used for sealing washer group to the circular bead of disk seat compresses tightly. In this application, because the combination formula sealing washer that adopts the symmetry to set up is organized for press the machining precision of cover, disk seat and valve body to require to reduce with sealing washer group complex, and the sealing washer of this kind of structure elastic deformation of group ability is stronger, the seal failure that can produce the concentrated wear of single sealing washer compensates.
Description
Technical field
The utility model relates to fluid technique, relates more specifically to a kind of ball valve sealing structure.
Background technique
In prior art, the serviceability of the ball valve body under complex working condition and the sealing configuration between valve seat is always not high, and particularly under high pressure height sulfur-bearing operating mode, as used rubber material to seal, medium can cause strong erosion to rubber packing material, makes seal failure.
The piston ring design of the ball seat under some high pressure height sulfur-bearing operating mode is general adopts multiple spring energy-storage circle and the structure of fixing frame of arranging in pairs or groups, this design adopts the characteristic of the pressure-bearing spreading of spring energy-storage circle to seal, but spring energy-storage circle spreading amplitude is little, this provides for improved the requirement on machining accuracy of each metal parts be mated; The sealing surface of spring energy-storage circle needs very little intermetallic composite coating surface roughness precision (the required roughness in surface be 0.8 within), otherwise its sealing surface is very easily ground in the process used, and strict roughness restriction makes metal parts manufacturing procedure loaded down with trivial details, except conventional turnery processing operation, grinding machine need be used to reduce roughness, and machining accuracy is wayward; Spring energy-storage circle contained spring is vulnerable to filling and the destruction of impurity in medium, contained spring was lost efficacy or is destroyed; Spring energy-storage circle is one-way sealing, when one of them spring energy-storage circle lost efficacy medium by, then another spring energy-storage circle back is born medium power and is caused closing, and does not reach sealing effect, will cause the global failure of seal ring group, and loss is greatly.
Model utility content
In view of this, the purpose of this utility model is that providing a kind of adopts symmetrically arranged combined type packing ring group, can make the ball valve sealing structure that the requirement on machining accuracy of gland, valve seat and the valve body closed with described seal ring assembly reduces.
Another object of the present utility model be to provide a kind of can according to the pressure changing in ball valve, in good time regulates sealing configuration, makes sealing configuration remain at the ball valve sealing structure of effective sealing state.
The ball valve sealing structure that the utility model provides, it is characterized in that, comprise valve body, valve seat, seal ring group, gland and elastic component, one end of described valve seat snaps in described valve body, described valve seat can slide axially by relatively described valve body, the cavity extended vertically is provided with between described valve seat and valve body, described seal ring group is set in described cavity, one end of described seal ring group is resisted against on the shoulder of described valve seat, the other end of described seal ring group is positioned in what described gland can slide axially be arranged on described cavity, described gland is used for being compressed by the shoulder of described seal ring group to described valve seat under the effect of elastic component.
Preferably, be also provided with elastic component fitting seat, in the glide direction of valve seat, described elastic component fitting seat to be arranged between described valve body and valve seat and to be resisted against on described valve body; Described elastic component fitting seat is roughly tubular structure, and inside is provided with axially through first flow, and is provided with at least two elastic component mounting holes; Described elastic component one end snaps in described elastic component mounting hole, and the other end is resisted against on an end face of described gland.
Preferably, described elastic component is cylindrically coiled spring.
Preferably, described valve seat comprises radial limited part, seal ring group assembly department and sealing fit portion, and described radial limited part is fastened on one end relative with described elastic component fitting seat in described valve body, and described valve seat can axially be slided by valve body relatively; Described cavity is formed between described seal ring group assembly department and the inwall of valve body; The described sealing fit portion matched with spheroid is arranged on the large end face of described valve seat.
Preferably, described valve seat is axially provided with the second runner, described second runner is communicated with described first flow.
Preferably, described seal ring group is arranged on described seal ring group assembly department, described seal ring group comprises at least one sub-sealing-ring group, each sub-sealing-ring group includes the first seal ring cooperatively interacted, second seal ring and the 3rd seal ring, described first seal ring has man type opening, described second seal ring cross section is man type, described 3rd seal ring cross section is roughly triangle, described first seal ring is arranged at one end of described seal ring group, described 3rd seal ring is arranged at the other end of described seal ring group, described second seal ring is between described first seal ring and the 3rd seal ring, the man type opening of described first seal ring is towards the second seal ring, the man type opening of described second seal ring is towards the 3rd seal ring, the wedge angle of described 3rd seal ring is towards the second seal ring.
Preferably, described first seal ring and the 3rd seal ring are respectively arranged with plane card-tight part on the bi-side of seal ring group axis, described first seal ring is clamped on the shoulder on described valve seat by described plane card-tight part, described 3rd seal ring is clamped on the end face of described gland by described plane card-tight part, described second seal ring and be provided with preset clearance between the first seal ring and the 3rd seal ring on the axial direction of seal ring.
Preferably, described seal ring group comprises the first sub-sealing-ring group and the second sub-sealing-ring group, described first sub-sealing-ring group is arranged in the mode that man type opening is relative with the second sub-sealing-ring group, and the plane card-tight part of two the first seal rings of two sub-sealing-ring groups is resisted against on described valve seat and gland respectively.
The ball valve sealing structure that the utility model provides, owing to adopting symmetrically arranged combined type packing ring group, the requirement on machining accuracy of gland, valve seat and the valve body closed with described seal ring assembly is reduced, and the seal ring group elastic deformability of this structure is stronger, can compensate the seal failure that the concentrated wear of single seal ring produces.Further, the sealing configuration of described elastic component, valve seat and gland composition, can according to the pressure changing in ball valve, and in good time regulates sealing configuration, makes sealing configuration remain at effective sealing state.
Accompanying drawing explanation
By referring to the description of accompanying drawing to the utility model embodiment, above-mentioned and other objects of the present utility model, feature and advantage will be more clear, in the accompanying drawings:
Fig. 1 is the schematic diagram of ball valve sealing structure in the present embodiment;
Embodiment
Hereinafter with reference to accompanying drawing, various embodiment of the present utility model is described in more detail.In various figures, identical element adopts same or similar reference character to represent.For the sake of clarity, the various piece in accompanying drawing is not drawn in proportion.
Illustrate, in the application, the axis of valve body refers to the axial direction of the runner that valve body is arranged, and the axis of valve seat refers to the axial direction of the runner that valve seat is arranged.
As shown in Figure 1, ball valve sealing structure in the present embodiment comprises valve body 1, valve seat 2, seal ring group 3, gland 4 and elastic component 5, one end of described valve seat 2 snaps in described valve body 1, described valve seat 2 can slide axially by relatively described valve body 1, the cavity extended vertically is provided with between described valve seat 2 and valve body 1, described seal ring group 3 is set in described cavity, one end of described seal ring group 3 is resisted against on the shoulder of described valve seat 2, the other end of described seal ring group 3 is positioned in what described gland 4 can slide axially be arranged on described cavity, described gland 4 for compressing the shoulder of described seal ring group 3 to described valve seat 2 under the effect of elastic component 5.
Preferably, be also provided with elastic component fitting seat 6, in the glide direction of valve seat 2, described elastic component fitting seat 6 to be arranged between described valve body 1 and valve seat 2 and to be resisted against on described valve body 1.Described elastic component fitting seat 6 is roughly tubular structure, inside is provided with axially through first flow 10, and be evenly provided with at least two elastic component mounting holes 61 along outer rim, described elastic component 5 one end snaps in described elastic component mounting hole 61, the other end is resisted against on an end face of described gland 4, provides certain pretightening force to described gland 4.Described elastic component 5 is preferably cylindrically coiled spring.
Described valve seat 2 comprises radial limited part 21, seal ring group assembly department 22 and sealing fit portion 23, and described radial limited part 21 is fastened on one end relative with described elastic component fitting seat 6 in described valve body 1, and described valve seat 2 can axially be slided by valve body 1 relatively; Described cavity is formed between described seal ring group assembly department 22 and the inwall of described gland 4 and valve body 1; The described sealing fit portion 23 matched with spheroid 7 is arranged on the large end face of described valve seat 2, for carrying out fitted seal with the sphere of spheroid 7.Described valve seat 2 is axially provided with the second runner 20, and described second runner 20 is communicated with described first flow 10, passing through for fluid.
Described seal ring group 3 is formed by the material with certain anti-corrosion capacity and elastic deformability, such as teflon.Described seal ring group 3 is arranged on described seal ring group assembly department 22, described seal ring group 3 comprises at least one sub-sealing-ring group, each sub-sealing-ring group includes the first seal ring 301 cooperatively interacted, second seal ring 302 and the 3rd seal ring 303, described first seal ring 301 has man type opening, described second seal ring 302 cross section is man type, described 3rd seal ring 303 cross section is roughly triangle, described first seal ring 301 is arranged at one end of described seal ring group 3, described 3rd seal ring 303 is arranged at the other end of described seal ring group 3, described second seal ring 302 is between described first seal ring 301 and the 3rd seal ring 303, the man type opening of described first seal ring 301 is towards the second seal ring 302, the man type opening of described second seal ring 302 is towards the 3rd seal ring 303, the wedge angle of described 3rd seal ring 303 is towards the second seal ring 302, described first seal ring 301 and the 3rd seal ring 303 are respectively arranged with plane card-tight part 3011 on the bi-side of seal ring group 3 axis, 3031, described first seal ring 301 is clamped on the shoulder on described valve seat 2 by described plane card-tight part 3011, described 3rd seal ring 303 is clamped on by described plane card-tight part 3031 on the end face of described gland 4, described second seal ring 302 and be provided with preset clearance between the first seal ring 301 and the 3rd seal ring 303 on the axial direction of seal ring, described preset clearance provides resiliently deformable space for described seal ring group 3.Preferably, described seal ring group 3 comprises the first sub-sealing-ring group 31 and the second sub-sealing-ring group 32, described first sub-sealing-ring group 31 is arranged in the mode that man type opening is relative with the second sub-sealing-ring group 32, the plane card-tight part 3011 of two the first seal rings 301 of two sub-sealing-ring groups is resisted against on described valve seat 2 and gland 4 respectively, under the effect of described elastic component 5, there is provided certain pretightening force by described gland 4 to described seal ring group 3, make mutually to extrude the seal action coordinating and realize ball valve sealing structure in the application between each seal ring described.
When being low pressure operating mode or when not having pressure in valve pocket, described gland 4 clamps described seal ring group 3 under the effect of elastic component 5, make described seal ring group 3 produce the inwall close contact of resiliently deformable and described valve seat 2 and valve body 1, realize the seal action between valve seat 2 and valve body 1; In addition, the elastic strain that elastic component 5 produces, promotes described valve seat 2 and moves towards the direction of described spheroid 7, described valve seat 2 is clamped mutually with the outer surface of described spheroid 7, realizes the seal action between valve body 1 and spheroid 7.In change in fluid pressure process in valve pocket, described elastic component 5 can adjust elastic deformation amount thereupon, makes described seal ring group 3 remain at effective sealing state, and makes to keep tight-seal condition between described valve seat 2 and described spheroid 7.
In the application, owing to adopting symmetrically arranged combined type packing ring group, the requirement on machining accuracy of gland 4, valve seat 2 and the valve body 1 coordinated with described seal ring group 3 is reduced, and the seal ring group elastic deformability of this structure is stronger, can compensate the seal failure that the concentrated wear of single seal ring produces.Further, the sealing configuration of described elastic component 5, valve seat 2 and gland 4 composition, can according to the pressure changing in ball valve, and in good time regulates sealing configuration, makes sealing configuration remain at effective sealing state.
Should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or control panel, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
Last it is noted that obviously, above-described embodiment is only for the utility model example is clearly described, and the restriction not to mode of execution.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all mode of executions.And thus the apparent change of amplifying out or variation be still among protection domain of the present utility model.
Claims (8)
1. a ball valve sealing structure, it is characterized in that, comprise valve body (1), valve seat (2), seal ring group (3), gland (4) and elastic component (5), one end of described valve seat (2) snaps in described valve body (1), described valve seat (2) can relatively described valve body (1) slide axially, the cavity extended vertically is provided with between described valve seat (2) and valve body (1), described seal ring group (3) is set in described cavity, one end of described seal ring group (3) is resisted against on the shoulder of described valve seat (2), the other end of described seal ring group (3) is positioned in what described gland (4) can slide axially be arranged on described cavity, described gland (4) for compressing the shoulder of described seal ring group (3) to described valve seat (2) under the effect of elastic component (5).
2. ball valve sealing structure according to claim 1, it is characterized in that, also be provided with elastic component fitting seat (6), in the glide direction of valve seat, described elastic component fitting seat (6) to be arranged between described valve body and valve seat and to be resisted against on described valve body (1);
Described elastic component fitting seat (6) is roughly tubular structure, and inside is provided with axially through first flow (10), and is provided with at least two elastic component mounting holes (61); Described elastic component (5) one end snaps in described elastic component mounting hole (61), and the other end is resisted against on an end face of described gland (4).
3. ball valve sealing structure according to claim 2, is characterized in that, described elastic component (5) is cylindrically coiled spring.
4. ball valve sealing structure according to claim 2, it is characterized in that, described valve seat (2) comprises radial limited part (21), seal ring group assembly department (22) and sealing fit portion (23), described radial limited part (21) is fastened on one end relative with described elastic component fitting seat (6) in described valve body (1), and described valve seat (2) can axially be slided by valve body (1) relatively; Described cavity is formed between described seal ring group assembly department (22) and the inwall of valve body (1); The described sealing fit portion (23) matched with spheroid (7) is arranged on the large end face of described valve seat (2).
5. ball valve sealing structure according to claim 4, it is characterized in that, described valve seat (2) is axially provided with the second runner (20), and described second runner (20) is communicated with described first flow (10).
6. ball valve sealing structure according to claim 1, it is characterized in that, described seal ring group (3) is arranged on described seal ring group assembly department (22), described seal ring group (3) comprises at least one sub-sealing-ring group, each sub-sealing-ring group includes the first seal ring (301) cooperatively interacted, second seal ring (302) and the 3rd seal ring (303), described first seal ring (301) has man type opening, described second seal ring (302) cross section is man type, described 3rd seal ring (303) cross section is roughly triangle, described first seal ring (301) is arranged at one end of described seal ring group (3), described 3rd seal ring (303) is arranged at the other end of described seal ring group (3), described second seal ring (302) is positioned between described first seal ring (301) and the 3rd seal ring (303), the man type opening of described first seal ring (301) is towards the second seal ring (302), the man type opening of described second seal ring (302) is towards the 3rd seal ring (303), the wedge angle of described 3rd seal ring (303) is towards the second seal ring (302).
7. ball valve sealing structure according to claim 6, it is characterized in that, described first seal ring (301) and the 3rd seal ring (303) are respectively arranged with plane card-tight part (3011 on the bi-side of seal ring group (3) axis, 3031), described first seal ring (301) is clamped on the shoulder on described valve seat (2) by described plane card-tight part (3011), described 3rd seal ring (303) is clamped on the end face of described gland (4) by described plane card-tight part (3031), described second seal ring (302) and be provided with preset clearance between the first seal ring (301) and the 3rd seal ring (303) on the axial direction of seal ring.
8. ball valve sealing structure according to claim 7, it is characterized in that, described seal ring group (3) comprises the first sub-sealing-ring group (31) and the second sub-sealing-ring group (32), described first sub-sealing-ring group (31) is arranged in the mode that man type opening is relative with the second sub-sealing-ring group (32), and the plane card-tight part (3011) of two the first seal rings (301) of two sub-sealing-ring groups is resisted against on described valve seat (2) and gland (4) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520536452.1U CN204805612U (en) | 2015-07-22 | 2015-07-22 | Ball valve seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520536452.1U CN204805612U (en) | 2015-07-22 | 2015-07-22 | Ball valve seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204805612U true CN204805612U (en) | 2015-11-25 |
Family
ID=54590441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520536452.1U Expired - Fee Related CN204805612U (en) | 2015-07-22 | 2015-07-22 | Ball valve seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204805612U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109804189A (en) * | 2016-08-03 | 2019-05-24 | E·莫雷洛 | Valve with a valve body |
-
2015
- 2015-07-22 CN CN201520536452.1U patent/CN204805612U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109804189A (en) * | 2016-08-03 | 2019-05-24 | E·莫雷洛 | Valve with a valve body |
| CN109804189B (en) * | 2016-08-03 | 2021-06-04 | E·莫雷洛 | Valve with a valve body |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102650342B (en) | Piston type compound sealing axial flow type check valve | |
| EP3063440A2 (en) | Valve seat, sealing gasket and pressure valve | |
| CN204805612U (en) | Ball valve seal structure | |
| GB923730A (en) | Improvements in gate valves for fluids | |
| CN208106693U (en) | Reciprocating compressor improvement of padding structure | |
| CN202612615U (en) | Compensation sealing structure | |
| CN201715015U (en) | Metal-seal fixed ball valve | |
| CN204784826U (en) | Inclined plane ball valve | |
| CN202418586U (en) | Lip-shaped sealing ring | |
| CN201233299Y (en) | Novel ultra-high pressure large caliber self-sealing pressure testing blind plate assembly | |
| CN204213363U (en) | High pressure butterfly valve | |
| CN104989841A (en) | High-temperature metal hard sealing floating ball valve | |
| CN212899835U (en) | High-frequency-time action ball valve | |
| CN205745295U (en) | A kind of oil field valve body sealing ring | |
| CN204459147U (en) | A kind of Bolt Connection Bidirectional static seal structure | |
| CN204533203U (en) | A kind of ball pin bearing | |
| CN104048100A (en) | Sealing structure for packless self-compensation sealing valve | |
| CN103939634B (en) | Gate valve holder structure | |
| CN217784096U (en) | Intermediate cylinder assembly of damping shock absorber | |
| CN202689941U (en) | Eccentric constant-width seal groove of cone bit | |
| CN206530727U (en) | A kind of hard seal ball valve seat with dustproof construction | |
| CN105508649A (en) | Fixed ball valve elastic-compensation soft seal valve seat structure | |
| CN205736742U (en) | Balanced suspension for heavy-duty vehicle sealing device | |
| CN205533517U (en) | Two -way seal assembly of formula of proclaiming oneself | |
| CN105179775A (en) | Pilot-operated type solenoid valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180507 Address after: 101500 9-2 Beijing Yan Yun Road, Miyun District Economic Development Zone, C Patentee after: Beijing Raymond Fluid Equipment Engineering Co.,Ltd. Address before: 101500 9-1 Yan Yun Road, C District, Miyun Economic Development Zone, Beijing Patentee before: RAYMOND (BEIJING) TECHNOLOGY CO.,LTD. |
|
| TR01 | Transfer of patent right | ||
| CP03 | Change of name, title or address |
Address after: 056000 Lintan Industrial Park, Jinnan New District, Handan City, Hebei Province (Lintan Town Fan Village) Patentee after: Hebei Raymond Valve Manufacturing Co.,Ltd. Address before: 101500 9-2 Beijing Yan Yun Road, Miyun District Economic Development Zone, C Patentee before: BEIJING RAYMOND FLUID EQUIPMENT ENGINEERING Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151125 |