CN212986112U - Flange sealing ball valve - Google Patents
Flange sealing ball valve Download PDFInfo
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- CN212986112U CN212986112U CN202021879266.5U CN202021879266U CN212986112U CN 212986112 U CN212986112 U CN 212986112U CN 202021879266 U CN202021879266 U CN 202021879266U CN 212986112 U CN212986112 U CN 212986112U
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Abstract
The utility model belongs to the technical field of the valve technique and specifically relates to a flange seal ball valve. The utility model provides a following technical scheme: the utility model provides a flange seal ball valve, which comprises a valve body, the passageway that runs through the valve body setting along the axial, but the ball valve core of switch passageway sets up in the valve body, and the valve rod that links to each other with ball valve core, the valve body corresponds ball valve core and is equipped with the disk seat, sealing connection between disk seat and the ball valve core, the valve body sets up to two formula structures, include first valve body and second valve body respectively, first valve body and second valve body are equipped with the flange face respectively in the terminal surface department that contacts with each other, be connected through the fastener between two flange faces, the relative second valve body of first valve body is equipped with sealed inserted block, sealed inserted block ladder just sets up annularly along the circumference of flange face, the second valve body corresponds sealed inserted block and is equipped with the sealed slot rather than the adaptation, be equipped with the sealing. The utility model discloses can make the sealed effect between the two formula structures of valve body better.
Description
Technical Field
The utility model belongs to the technical field of the valve technique and specifically relates to a flange seal ball valve.
Background
Ball valves come out in the 50 th of the 20 th century, and with the rapid development of science and technology and the continuous improvement of production processes and product structures, the ball valves have rapidly developed into a main valve class in short 40 years. In China, the ball valve is widely applied to industries such as petroleum refining, long-distance pipelines, chemical industry, papermaking, pharmacy, water conservancy, electric power, municipal administration, steel and the like, and plays a significant role in national economy.
The ball valve has the functions of cutting off, distributing and changing the flow direction of medium in pipeline, and its valve core is spherical, and can be tightly closed by only using small turning moment to turn the valve core by 90 deg.
However, the valve core needs to be assembled in the valve body of the ball valve, and the valve body is of a two-piece structure in order to facilitate the assembly of the valve core, so that the valve core can be installed into the valve body from the joint of two pipe fittings, and the two-piece structure needs to be mutually connected in a sealing manner.
Disclosure of Invention
To the problem that exists among the prior art, the utility model provides a flange seal ball valve can make the sealed effect between the two formula structures of valve body better.
In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a flange seal ball valve, includes the valve body, follows the passageway that the axial runs through the valve body setting, sets up in the valve body and but the ball-shaped valve core of switch passageway to and the valve rod that links to each other with ball-shaped valve core, the valve body corresponds ball-shaped valve core and is equipped with the disk seat, sealing connection between disk seat and the ball-shaped valve core, the valve body sets up to two slice formula structures, includes first valve body and second valve body respectively, first valve body and second valve body are equipped with the flange face respectively in the terminal surface department that contacts with each other, are connected through the fastener between two flange faces, first valve body is equipped with sealed inserted block relative to the second valve body, sealed inserted block sets up to the echelonment and sets up annularly along the circumference of flange face, the second valve body corresponds sealed inserted block and is equipped with the sealed slot rather than the adaptation.
By adopting the technical scheme, besides the connection through the flange surface, the first valve body and the second valve body are also provided with the sealing insertion block to be matched with the sealing insertion groove, the first valve body and the second valve body are jointed through the insertion of the sealing insertion block and the sealing insertion groove, the sealing insertion block is sealed through the sealing ring, the sealing insertion block is in a step shape, the contact area between the sealing insertion block and the sealing insertion groove can be enlarged, the matching is more tight, and the sealing effect is better.
Furthermore, the spherical valve core is provided with a through hole which penetrates through the spherical valve core, the opening direction of the through hole is perpendicular to the valve rod, a groove is formed in the end face, forming an included angle of 90 degrees with the openings at the two ends of the through hole, of the spherical valve core along the rotation direction of the valve rod, and the groove is formed in the center of the spherical surface.
By adopting the technical scheme, the openings at the two ends of the through hole of the spherical valve core can enable the medium in the channel to pass through, the valve rod rotates for 90 degrees, the openings at the two ends of the through hole of the spherical valve core are rotated away from the channel to close the channel, the medium in the channel is prevented from passing through, the end face of the spherical valve core in the channel is provided with the groove, the medium impacts the spherical valve core after the channel is closed, as the spherical valve core is spherical and has a smooth surface, the medium can flow to the position where the spherical valve core is connected with the valve seat along the spherical surface, the sealing failure of the spherical valve core and the valve seat can be caused by the impact of the medium for a long time, the leakage is caused, and the impact of a part of the medium can.
Further, the sealing ring is arranged at the position where each step of the sealing insert block is contacted with the sealing slot.
By adopting the technical scheme, the steps of the sealing insert block can be sealed by the sealing ring and the sealing slot, so that the sealing effect is better.
Further, the sealing ring is arranged along the axial direction of the step.
By adopting the technical scheme, the sealing ring can be sleeved on the axial end face of the step in the arrangement manner, so that the sealing ring is fixed, and the sealing ring can be prevented from falling off.
Furthermore, the two ends of the valve body along the axial direction are respectively provided with a connecting flange surface, and the connecting flange surface is provided with a mounting hole.
By adopting the technical scheme, the valve body can be connected and fixed in the pipeline through the connecting flange surface, so that the connection is firmer and more reliable.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a cross-sectional view of the present invention along the axial direction.
Fig. 3 is an enlarged view of a portion a of fig. 2.
Fig. 4 is a schematic structural diagram of the valve core.
Detailed Description
The following will further describe the embodiments of the present invention with reference to the drawings and examples.
As shown in fig. 1-4, a flange seal ball valve includes a valve body 1, a passage 2 axially penetrating the valve body 1, a ball valve core 3 disposed in the valve body 1 and capable of opening and closing the passage 2, and a valve rod 4 connected to the ball valve core 3, the valve body 1 is provided with a valve seat 5 corresponding to the ball valve core 3, the valve seat 5 is connected to the ball valve core 3 in a sealing manner, the valve body 1 is provided with a two-piece structure and includes a first valve body 11 and a second valve body 12, the first valve body 11 and the second valve body 12 are respectively provided with flange surfaces 9 at end surfaces contacting each other, the two flange surfaces 9 are connected by a fastener 10, the first valve body 11 is provided with a seal insert 6 corresponding to the second valve body 12, the seal insert 6 is provided with a step shape and is disposed in a ring shape along a circumferential direction of the flange surfaces 9, the second valve body 12 is provided with a seal slot 7 corresponding to the seal insert 6, and a sealing ring 8 is arranged between the sealing insert 6 and the sealing slot 7. Besides the connection through the flange surface 9, the first valve body 11 and the second valve body 12 are also provided with a sealing insert 6 matched with the sealing slot 7, the first valve body 11 and the second valve body 12 are jointed through the insertion of the sealing insert 6 and the sealing slot 7 and are sealed through a sealing ring 8, the sealing insert 6 is in a step shape, the contact area between the sealing insert 6 and the sealing slot 7 can be enlarged, the matching is tighter, and the sealing effect is better.
The spherical valve core 3 is provided with a through hole 31 which penetrates through the spherical valve core, the opening direction of the through hole 31 is perpendicular to the valve rod 4, a groove 32 is formed in the end face, forming an included angle of 90 degrees with the openings at the two ends of the through hole 31, of the spherical valve core 3 along the rotation direction of the valve rod 4, and the groove 32 is formed in the center of the spherical surface. The openings at two ends of the through hole 31 of the spherical valve core 3 can enable the medium in the channel 2 to pass through, the valve rod 4 rotates for 90 degrees, the openings at two ends of the through hole 31 of the spherical valve core 3 are rotated away from the channel 2, the channel 2 is closed, the medium in the channel 2 is prevented from passing through, the end face of the spherical valve core 3 in the channel 2 is provided with the groove 32, the medium impacts the spherical valve core 3 after the channel 2 is closed, because the spherical valve core 3 is spherical and has a smooth surface, the medium can flow to the position where the spherical valve core 3 is connected with the valve seat 5 along the spherical surface, the sealing failure of the spherical valve core 3 and the valve seat 5 can be possibly caused by the impact of the medium for a long time, the leakage is caused, and the groove 32 can share the impact of a part of the medium.
The sealing rings 8 are arranged at the positions where the steps of the sealing insert 6 are contacted with the sealing slots 7. The arrangement can lead each step of the sealing insert 6 to be sealed with the sealing slot 7 through the sealing ring 8, so that the sealing effect is better.
The sealing ring 8 is arranged along the axial direction of the step. The sealing ring 8 can be sleeved on the axial end face of the step by the arrangement, the sealing ring 8 is fixed, and the sealing ring 8 can be prevented from falling off.
The two ends of the valve body 1 along the axial direction are respectively provided with a connecting flange surface 13, and the connecting flange surface 13 is provided with a mounting hole 14. The valve body 1 can be connected and fixed in a pipeline through the connecting flange surface 13, so that the connection is firmer and more reliable.
Claims (5)
1. The utility model provides a flange seal ball valve, includes the valve body, along the passageway that the axial runs through the valve body setting, set up in the valve body and but the spherical case of switch passageway to and the valve rod that links to each other with spherical case, the valve body corresponds spherical case and is equipped with the disk seat, sealing connection between disk seat and the spherical case, the valve body sets up to two slice formula structures, includes first valve body and second valve body respectively, first valve body and second valve body are equipped with the flange face respectively in the terminal surface department that contacts with each other, are connected its characterized in that through the fastener between two flange faces: the first valve body is provided with a sealing insert block relative to the second valve body, the sealing insert block is arranged in a step shape and is arranged in a ring shape along the circumferential direction of the flange surface, the second valve body is provided with a sealing slot matched with the sealing insert block, and a sealing ring is arranged between the sealing insert block and the sealing slot.
2. A flange-sealed ball valve according to claim 1, wherein: the ball-shaped valve core is provided with a through hole which penetrates through the ball-shaped valve core, the opening direction of the through hole is perpendicular to the valve rod, a groove is formed in the end face, forming an included angle of 90 degrees with the openings at the two ends of the through hole, of the ball-shaped valve core along the rotation direction of the valve rod, and the groove is formed in the center of the spherical surface.
3. A flange-sealed ball valve according to claim 1 or 2, wherein: the sealing rings are arranged at the positions where the steps of the sealing insertion blocks are contacted with the sealing slots.
4. A flange-sealed ball valve according to claim 3, wherein: the sealing ring is arranged along the axial direction of the step.
5. A flange-sealed ball valve according to claim 1, 2 or 4, wherein: the valve body is provided with connecting flange faces at two ends along the axial direction, and mounting holes are formed in the connecting flange faces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021879266.5U CN212986112U (en) | 2020-09-01 | 2020-09-01 | Flange sealing ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021879266.5U CN212986112U (en) | 2020-09-01 | 2020-09-01 | Flange sealing ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212986112U true CN212986112U (en) | 2021-04-16 |
Family
ID=75435953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021879266.5U Active CN212986112U (en) | 2020-09-01 | 2020-09-01 | Flange sealing ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212986112U (en) |
-
2020
- 2020-09-01 CN CN202021879266.5U patent/CN212986112U/en active Active
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