CN217842714U - Small-bore three eccentric butterfly valve seal structure - Google Patents
Small-bore three eccentric butterfly valve seal structure Download PDFInfo
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- CN217842714U CN217842714U CN202222042787.0U CN202222042787U CN217842714U CN 217842714 U CN217842714 U CN 217842714U CN 202222042787 U CN202222042787 U CN 202222042787U CN 217842714 U CN217842714 U CN 217842714U
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- valve body
- bottom plate
- baffle
- valve
- bull stick
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- 238000007789 sealing Methods 0.000 claims abstract description 38
- 244000309464 bull Species 0.000 claims abstract description 18
- 239000011435 rock Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 7
- 238000010030 laminating Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 239000004429 Calibre Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model relates to a valve body technical field just discloses a three eccentric butterfly valve seal structure of small-bore, which comprises a valve body, the bottom of valve body is provided with the bottom plate, be provided with four fixing bolt on the bottom plate, fixing bolt runs through the bottom plate, just fixing bolt and bottom plate threaded connection, the bottom plate passes through fixing bolt fixed mounting in the bottom of valve body, it is connected with the bull stick to rotate through the bearing on the top surface of bottom plate, the bull stick runs through the valve body, just the bull stick rotates with the valve body to be connected, be provided with on the top surface of valve body and compress tightly the piece, the bull stick is located one section in the valve body and goes up fixedly connected with baffle. The utility model discloses a set up the dog and block the sealing washer position, guarantee that the sealing washer both can not rock at will, can freely expand at high temperature operating mode during operation again to guarantee that the sealed face of sealing washer and baffle is unanimous at the thermal state operating mode inflation, guarantee that the valve has good sealing performance under high temperature operating mode.
Description
Technical Field
The utility model relates to a valve body technical field specifically is a small-bore triple offset butterfly valve seal structure.
Background
In some key positions of device pipelines in the oil refining chemical industry, because strict requirements are provided for the adjusting performance, the quick closing time and the leakage grade during closing of the valve, the three-eccentric butterfly valve is widely applied due to the characteristics of good adjustability, short closing time and zero leakage realization; when the triple eccentric butterfly valve works under the working condition that the temperature exceeds 450 ℃, the sealing performance is reduced or the triple eccentric butterfly valve completely fails under the high-temperature working condition due to thermal deformation and inconsistent expansion of the sealing ring and the baffle, so that the working efficiency of the whole device is reduced and even potential safety hazards are brought; for a small-diameter triple-eccentric butterfly valve (DN is less than or equal to 600), due to the limitation of the diameter and the opening size, a double-cylinder structure cannot obtain enough design space, so that the small-diameter triple-eccentric butterfly valve cannot have good sealing performance under a high-temperature working condition by using the double-cylinder structure.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a small-bore three eccentric butterfly valve seal structure reaches the purpose of solving above-mentioned problem.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a three eccentric butterfly valve seal structures of small-bore, includes the valve body, the bottom of valve body is provided with the bottom plate, it is connected with the bull stick to rotate through the bearing on the top surface of bottom plate, the bull stick runs through the valve body, just the bull stick rotates with the valve body to be connected, be provided with on the top surface of valve body and compress tightly the piece, the bull stick is located one section fixedly connected with baffle in the valve body, one side of baffle is provided with the dog.
Preferably, be provided with four fixing bolt on the bottom plate, fixing bolt runs through the bottom plate, just fixing bolt and bottom plate threaded connection, the bottom plate passes through fixing bolt fixed mounting in the bottom of valve body, through setting up fixing bolt, can stably fix the bottom plate in the bottom of valve body, and is convenient for dismantle.
Preferably, the compressing part is provided with a compressing pin, the compressing pin penetrates through the compressing part, the compressing part is fixedly mounted on the top surface of the valve body through the compressing pin, the rotating rod penetrates through the compressing part, the rotating rod is tightly attached to the compressing part, and the compressing part can be stably fixed on the top of the valve body through the compressing pin.
Preferably, be provided with the sealing washer between valve body and the baffle, the sealing washer all closely laminates with valve body and baffle, through setting up the sealing washer, can be sealed completely the gap between baffle and the valve body, prevents that liquid from permeating through the baffle in the gap when the valve door closes, and the influence blocks the effect.
Preferably, be provided with the fixed pin on the dog, the fixed pin runs through the dog, the dog passes through fixed pin fixed mounting on the baffle, through setting up the fixed pin, can fix the dog on the baffle steadily, avoids the baffle inflation to lead to the dog to drop, can not play the chucking effect to the sealing washer.
Preferably, be provided with the bellying on the inner wall of valve body, the convex surface of bellying is the inclined plane setting, one side of dog and the closely laminating of the bellying of valve body, just one side of dog and valve body laminating also is the inclined plane setting, blocks the sealing washer position through setting up the dog, guarantees that the sealing washer both can not rock at will, can freely expand again at high temperature operating mode during operation to guarantee that the sealing face of sealing washer and baffle is unanimous at the expansion of hot state operating mode, guarantee that the valve has good sealing performance under the high temperature operating mode.
The utility model provides a small-bore three eccentric butterfly valve seal structure. The method has the following beneficial effects:
(1) The utility model discloses a set up the dog and block the sealing washer position, guarantee that the sealing washer both can not rock at will, can freely expand at high temperature operating mode during operation again to guarantee that the sealed face of sealing washer and baffle is unanimous at the hot operating mode inflation, guarantee that the valve has good sealing performance under the high temperature operating mode.
(2) The utility model discloses a set up the bottom plate, pass through the bearing with the one end of bull stick and rotate the connection on the bottom plate, both can fix the bull stick in the valve body, can not influence the bull stick again and rotate the start-stop valve.
Drawings
Fig. 1 is a front view of the present invention;
fig. 2 is a cross-sectional view of the present invention;
fig. 3 is a schematic diagram of the structure of the sealing ring of the present invention.
In the figure: 1. a valve body; 2. a base plate; 3. fixing the bolt; 4. a rotating rod; 5. a compression member; 6. a hold down pin; 7. a baffle plate; 8. a seal ring; 9. a stopper; 10. and fixing the pin.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
As shown in fig. 1-3, the utility model provides a technical scheme: a sealing structure of a small-caliber three-eccentric butterfly valve comprises a valve body 1, a bottom plate 2 is arranged at the bottom of the valve body 1, four fixing bolts 3 are arranged on the bottom plate 2, the fixing bolts 3 penetrate through the bottom plate 2, the fixing bolts 3 are in threaded connection with the bottom plate 2, the bottom plate 2 is fixedly arranged at the bottom of the valve body 1 through the fixing bolts 3, the bottom plate 2 can be stably fixed at the bottom of the valve body 1 through the fixing bolts 3, the fixing bolts are convenient to disassemble, a rotating rod 4 is rotatably connected onto the top surface of the bottom plate 2 through a bearing, the rotating rod 4 penetrates through the valve body 1, the rotating rod 4 is rotatably connected with the valve body 1, a pressing piece 5 is arranged on the top surface of the valve body 1, a pressing pin 6 is arranged on the pressing piece 5, the pressing piece 6 penetrates through the pressing piece 5, the pressing piece 5 is fixedly arranged on the top surface of the valve body 1 through the rotating rod 4, the rotating rod 4 is tightly attached to the pressing piece 5, the pressing piece 5 can be stably fixed at the top of the valve body 1 through the pressing pin 6, the baffle 7 is fixedly connected on one section of the rotating rod 4 positioned in the valve body 1, a sealing ring 8 is arranged between the valve body 1 and the baffle 7, the sealing ring 8 is tightly attached to the valve body 1 and the baffle 7, the gap between the baffle 7 and the valve body 1 can be completely sealed through the arrangement of the sealing ring 8, liquid is prevented from permeating through the baffle 7 from the gap when the valve is closed, the blocking effect is influenced, a stop block 9 is arranged on one side of the baffle 7, a fixing pin 10 is arranged on the stop block 9, the fixing pin 10 penetrates through the stop block 9, the stop block 9 is fixedly arranged on the baffle 7 through the fixing pin 10, the stop block 9 can be stably fixed on the baffle 7 through the arrangement of the fixing pin 10, the stop block 9 is prevented from falling off due to expansion of the baffle 7, the clamping effect on the sealing ring 8 cannot be achieved, and a protruding part is arranged on the inner wall of the valve body 1, the convex surface of bellying sets up for the inclined plane, one side of dog 9 and the inseparable laminating of bellying of valve body 1, and dog 9 also sets up for the inclined plane with one side of the laminating of valve body 1, block sealing washer 8 position through setting up dog 9, guarantee that sealing washer 8 neither can rock at will, can freely expand again at high temperature operating mode during operation to guarantee that the sealed face of sealing washer 8 and baffle 7 is unanimous at the hot working condition inflation, guarantee that the valve has good sealing performance under the high temperature operating mode.
When using, through rotating bull stick 4, 4 rotations of bull sticks drive baffle 7 and deflect, thereby realize opening and close of three eccentric butterfly valves, baffle 7 is rotatory round bull stick 4, three eccentric butterfly valves are when opening completely, less flow resistance has, when opening between about 15 ~ 70, can carry out sensitive flow control again, therefore in the regulation field of heavy-calibre, three eccentric butterfly valves's application is very general, have better sealing performance and permanent life in order to guarantee three eccentric butterfly valves, the seal structure of three eccentric butterfly valves has been improved for this.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a reference structure" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (6)
1. The utility model provides a three eccentric butterfly valve seal structure of small-bore, includes valve body (1), its characterized in that: the bottom of valve body (1) is provided with bottom plate (2), it is connected with bull stick (4) to rotate through the bearing on the top surface of bottom plate (2), bull stick (4) run through valve body (1), just bull stick (4) rotate with valve body (1) and are connected, be provided with on the top surface of valve body (1) and compress tightly piece (5), fixedly connected with baffle (7) are gone up in one section that bull stick (4) are located valve body (1), one side of baffle (7) is provided with dog (9).
2. The small-caliber triple eccentric butterfly valve sealing structure according to claim 1, wherein: the valve is characterized in that four fixing bolts (3) are arranged on the bottom plate (2), the fixing bolts (3) penetrate through the bottom plate (2), the fixing bolts (3) are in threaded connection with the bottom plate (2), and the bottom plate (2) is fixedly installed at the bottom of the valve body (1) through the fixing bolts (3).
3. The small-caliber triple-eccentric butterfly valve sealing structure according to claim 2, wherein: the pressure pin (6) is arranged on the pressure piece (5), the pressure pin (6) penetrates through the pressure piece (5), the pressure piece (5) is fixedly installed on the top surface of the valve body (1) through the pressure pin (6), the rotating rod (4) penetrates through the pressure piece (5), and the rotating rod (4) is tightly attached to the pressure piece (5).
4. The small-caliber triple-eccentric butterfly valve sealing structure according to claim 3, wherein: a sealing ring (8) is arranged between the valve body (1) and the baffle (7), and the sealing ring (8) is tightly attached to the valve body (1) and the baffle (7).
5. The small-caliber triple eccentric butterfly valve sealing structure according to claim 4, wherein: the baffle plate is characterized in that a fixing pin (10) is arranged on the baffle plate (9), the fixing pin (10) penetrates through the baffle plate (9), and the baffle plate (9) is fixedly installed on the baffle plate (7) through the fixing pin (10).
6. The small-caliber triple-eccentric butterfly valve sealing structure according to claim 5, wherein: the novel valve is characterized in that a protruding portion is arranged on the inner wall of the valve body (1), the convex surface of the protruding portion is arranged on an inclined plane, one side of the stop block (9) is tightly attached to the protruding portion of the valve body (1), and the stop block (9) is also arranged on the inclined plane on the side attached to the valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222042787.0U CN217842714U (en) | 2022-08-04 | 2022-08-04 | Small-bore three eccentric butterfly valve seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222042787.0U CN217842714U (en) | 2022-08-04 | 2022-08-04 | Small-bore three eccentric butterfly valve seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217842714U true CN217842714U (en) | 2022-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222042787.0U Active CN217842714U (en) | 2022-08-04 | 2022-08-04 | Small-bore three eccentric butterfly valve seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217842714U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116809339A (en) * | 2023-06-09 | 2023-09-29 | 瑞安市傲瑞机械有限公司 | Fixing device is used in infiltration of binary channels fluid seal eccentric butterfly valve |
-
2022
- 2022-08-04 CN CN202222042787.0U patent/CN217842714U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116809339A (en) * | 2023-06-09 | 2023-09-29 | 瑞安市傲瑞机械有限公司 | Fixing device is used in infiltration of binary channels fluid seal eccentric butterfly valve |
| CN116809339B (en) * | 2023-06-09 | 2024-03-26 | 瑞安市傲瑞机械有限公司 | Fixing device is used in infiltration of binary channels fluid seal eccentric butterfly valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A sealing structure for small diameter three eccentric butterfly valves Granted publication date: 20221118 Pledgee: Wuding Road Sub branch of Bank of Shanghai Co.,Ltd. Pledgor: Tiexi Fluid Technology (Shanghai) Co.,Ltd. Registration number: Y2024980004472 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |