CN218267268U - Butterfly valve with high leakproofness - Google Patents
Butterfly valve with high leakproofness Download PDFInfo
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- CN218267268U CN218267268U CN202222458608.1U CN202222458608U CN218267268U CN 218267268 U CN218267268 U CN 218267268U CN 202222458608 U CN202222458608 U CN 202222458608U CN 218267268 U CN218267268 U CN 218267268U
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- valve rod
- butterfly
- valve
- valve body
- medium flow
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Abstract
The application discloses a butterfly valve with high sealing performance, which relates to the technical field of butterfly valves and comprises a lower valve body; the upper valve body is connected to the lower valve body; the fluorine lining body is coated on the inner wall of the medium flow channel and two end faces of the medium flow channel; a disc plate rotatably disposed in the medium flow passage; an upper valve rod rotatably arranged on the upper valve body; the lower valve rod is rotatably arranged on the lower valve body, and the disc plate is connected between the upper valve rod and the lower valve rod; an actuator mounted on the upper end of the upper valve body; an upper sealing structure connected between the upper valve rod and the disc plate; the lower seal structure of connecting between lower valve rod and butterfly plate, the leakproofness when this application can improve the butterfly valve and use through seal structure about setting up, and the fluorine-lined body cladding can improve the corrosion resistance of butterfly valve on the inner wall of medium runner and the both ends face of medium runner.
Description
Technical Field
The application relates to the technical field of butterfly valves, in particular to a butterfly valve with high sealing performance.
Background
The butterfly valve is a regulating valve with simple structure, and mainly plays a role in cutting off and throttling on a pipeline. The butterfly valve opening and closing piece is a disc-shaped butterfly plate and rotates around the axis of the butterfly plate in the valve body, so that the opening and closing or adjusting purpose is achieved.
In the prior art, the sealing performance of the butterfly valve is improved through the filler, but the filler is continuously abraded along with long-time use, so that the condition that the sealing performance of the interior of the butterfly valve is gradually reduced is caused, and the corrosion resistance of the existing butterfly valve is poor, so that the service life of the butterfly valve can be further reduced after long-time use.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present application provides a butterfly valve with high sealing performance to solve the above technical problems.
In order to achieve the above object, the utility model provides a following technical scheme:
a butterfly valve with high sealing, comprising:
a lower valve body;
the upper valve body is detachably connected to the lower valve body, and a medium flow channel for medium circulation is formed on the upper valve body and the lower valve body;
the fluorine lining body is coated on the inner wall of the medium flow channel and two end surfaces of the medium flow channel;
a disc plate rotatably disposed in the media flow passage;
an upper valve rod rotatably arranged on the upper valve body, wherein the lower end of the upper valve rod is connected with the upper end of the disc plate;
a lower valve rod rotatably arranged on the lower valve body, wherein the upper end of the lower valve rod is connected with the lower end of the disc plate;
the actuator is arranged at the upper end of the upper valve body and is connected with the upper valve rod;
the actuator drives the upper valve rod to rotate, so that the disc plate rotates in the medium flow channel, the medium flow channel is opened or closed, and the medium in the medium flow channel flows or is stopped.
Further, the fluorine lining body is made of fluoroplastic.
Further, still include lower seal structure, lower seal structure includes:
the two butterfly springs are sleeved on the lower valve rod and are accommodated in the sunken holes of the lower valve body;
the tetrafluoro pad is sleeved on the lower valve rod and positioned above the butterfly spring at the upper end;
and the positioning sleeve is sleeved on the lower valve rod and contained in the sinking cavity of the tetrafluoro pad, and the upper end surface of the positioning sleeve is pressed against the fluorine lining body.
Further, the surface of the dish board is provided with a wear-resistant layer.
Still further, the plate includes a central recess and an outer peripheral protrusion annularly disposed on an outer periphery of the central recess.
Furthermore, the lower end of the upper valve rod is connected to the upper end of the outer edge convex part, and the upper end of the lower valve rod is connected to the lower end of the outer edge convex part.
Further, still include upper seal structure, upper seal structure includes:
the two butterfly springs are sleeved on the upper valve rod and accommodated in the upper counter bores of the upper valve body;
the tetrafluoro cushion is sleeved on the upper valve rod and is positioned below the belleville spring at the lower end;
and the lower end surface of the positioning sleeve is pressed against the fluorine lining body.
Further, the actuator is a turbo reducer.
Furthermore, the output end of the turbine speed reducer is connected with the upper end of the upper valve rod.
Furthermore, the input end of the turbine speed reducer is provided with a hand wheel.
It can be seen from the above technical scheme that, the utility model has the advantages that:
1. the utility model discloses in, the both ends of butterfly plate all are equipped with seal structure, and seal structure forms through a plurality of seal part equipment, can improve the leakproofness of butterfly valve.
2. The utility model provides a tetrafluoro pad and lining fluorine body have corrosion-resistant effect, can improve the corrosion resistance of butterfly valve, and then improve holistic life.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
Fig. 1 is a schematic structural diagram of the present application.
Fig. 2 is a partially enlarged view of a portion a of fig. 1.
Fig. 3 is a partially enlarged view of fig. 1 at B.
List of reference numerals: the valve comprises a lower valve body 1, a lower valve rod 11, a lower sinking hole 12, a belleville spring 2, a tetrafluoro pad 3, a sinking cavity 31, a positioning sleeve 4, a fluorine lining body 5, a disc plate 6, a wear-resistant layer 61, an outer edge convex part 62, a central concave part 63, an upper valve body 7, an upper valve rod 71, an upper sinking hole 72, a turbine reducer 8, a hand wheel 81 and a medium flow channel 9.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be described in further detail below with reference to the accompanying drawings. The exemplary embodiments and descriptions of the present application are provided to explain the present application and not to limit the present application.
Referring to fig. 1 to 3, as shown in fig. 1, the present embodiment provides a butterfly valve with high sealability, including a lower valve body 1; the upper valve body 7 is detachably connected to the lower valve body 1, and a medium flow passage 9 for medium circulation is formed on the upper valve body 7 and the lower valve body 1; the fluorine lining body 5 is coated on the inner wall of the medium flow passage 9 and two end faces of the medium flow passage 9; a disc plate 6, said disc plate 6 being rotatably disposed within said media flow passage 9; an upper valve rod 71, wherein the upper valve rod 71 is rotatably arranged on the upper valve body 7, and the lower end of the upper valve rod 71 is connected with the upper end of the disc plate 6; the lower valve rod 11 is rotatably arranged on the lower valve body 1, and the upper end of the lower valve rod 11 is connected with the lower end of the disc plate 6; an actuator, which is installed on the upper end of the upper valve body 7 and is connected with the upper valve rod 71; the actuator drives the upper valve rod 71 to rotate, so that the disc plate 6 rotates in the medium flow channel 9, and the medium flow channel 9 is opened or closed, and the medium in the medium flow channel 9 flows or is stopped.
Preferably, the fluorine lining body 5 is made of fluoroplastic, and both the fluorine lining body 5 and the tetrafluoro pad 3 can improve the corrosion resistance of the butterfly valve, thereby improving the service life of the butterfly valve.
As shown in fig. 2, the butterfly valve with high sealability further comprises a lower sealing structure, the lower sealing structure comprising: the two belleville springs 2 are sleeved on the lower valve rod 11, and the two belleville springs 2 are accommodated in a sinking hole 12 of the lower valve body 1; the tetrafluoro pad 3 is sleeved on the lower valve rod 11, and the tetrafluoro pad 3 is positioned above the butterfly spring 2 at the upper end; and the positioning sleeve 4 is sleeved on the lower valve rod 11, the positioning sleeve 4 is accommodated in the sinking cavity 31 of the tetrafluoro cushion 3, and the upper end surface of the positioning sleeve 4 is pressed against the fluorine lining body 5.
Preferably, the surface of the butterfly plate 6 is provided with a wear-resistant layer 61, and the wear-resistant layer 61 can improve the wear resistance of the butterfly plate 6, so that the butterfly plate 6 has better sealing performance during rotation and longer service life.
Preferably, the plate 6 comprises a central recess 63 and an outer rim protrusion 62, the outer rim protrusion 62 being annularly arranged on the outer circumference of the central recess 63.
Preferably, the lower end of the upper valve stem 71 is connected to the upper end of the outer edge projection 62, and the upper end of the lower valve stem 11 is connected to the lower end of the outer edge projection 62.
As shown in fig. 3, the butterfly valve with high sealability further comprises an upper sealing structure, which comprises: the two belleville springs 2 are sleeved on the upper valve rod 71, and the two belleville springs 2 are accommodated in an upper counter bore 72 of the upper valve body 7; the tetrafluoro pad 3 is sleeved on the upper valve rod 71, and the tetrafluoro pad 3 is positioned below the belleville spring 2 at the lower end; and the positioning sleeve 4 is sleeved on the upper valve rod 71, the positioning sleeve 4 is accommodated in the sinking cavity 31 of the tetrafluoro cushion 3, and the lower end surface of the positioning sleeve 4 is pressed against the fluorine lining body 5.
Preferably, the locating sleeve 4 can play the effect of location to accuracy when improving the installation, belleville spring 2 and tetrafluoro pad 3 cooperation can improve sealed effect, thereby make the leakproofness of butterfly valve improve greatly.
Preferably, the actuator is a turbo reducer 8.
Preferably, the output end of the turbo reducer 8 is connected to the upper end of the upper valve stem 71.
Preferably, a hand wheel 81 is installed at the input end of the turbine speed reducer 8, and the turbine speed reducer 8 can be driven to drive by rotating the hand wheel 81 so as to drive the disc plate 6 to rotate, thereby realizing the closing and opening of the valve.
Preferably, the butterfly valve has a strength test of 1.5MPa.
Preferably, the butterfly valve has a seal test of 1.1MPa.
Preferably, the butterfly valve has a hermetic seal test of 0.6MPa.
Preferably, the applicable temperature of the butterfly valve is between minus 29 degrees and less than or equal to 150 degrees.
Preferably, the medium suitable for the butterfly valve is a strong corrosive medium.
Preferably, in the electric spark test, the voltage is 5KV, the speed is 50mm/s, and the breakdown phenomenon is avoided.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and it will be apparent to those skilled in the art that various modifications and variations can be made in the embodiment of the present application. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A butterfly valve with high leakproofness, comprising:
a lower valve body (1);
the upper valve body (7) is detachably connected to the lower valve body (1), and a medium flow channel (9) for medium circulation is formed on the upper valve body (7) and the lower valve body (1);
the fluorine lining body (5) is coated on the inner wall of the medium flow channel (9) and two end surfaces of the medium flow channel (9);
a disc plate (6) rotatably arranged in said medium flow channel (9);
an upper valve rod (71) rotatably arranged on the upper valve body (7), wherein the lower end of the upper valve rod (71) is connected with the upper end of the disc plate (6);
a lower valve rod (11) rotatably arranged on the lower valve body (1), wherein the upper end of the lower valve rod (11) is connected with the lower end of the disc plate (6);
the actuator is arranged at the upper end of the upper valve body (7) and is connected with the upper valve rod (71);
the actuator drives the upper valve rod (71) to rotate, so that the disc plate (6) rotates in the medium flow channel (9), the medium flow channel (9) is opened or closed, and the medium in the medium flow channel (9) flows or is stopped.
2. The butterfly valve with high leaktightness according to claim 1, characterized in that said fluorine-lined body (5) is made of fluoroplastic.
3. The butterfly valve with high sealing according to claim 1, further comprising a lower sealing structure, the lower sealing structure comprising:
the two belleville springs (2) are sleeved on the lower valve rod (11), and the two belleville springs (2) are accommodated in a sinking hole (12) of the lower valve body (1);
the tetrafluoro cushion (3) is sleeved on the lower valve rod (11) and is positioned above the butterfly spring (2) at the upper end;
the lower valve rod (11) is sleeved with a positioning sleeve (4) which is accommodated in a sinking cavity (31) of the tetrafluoro pad (3), and the upper end face of the positioning sleeve (4) is pressed against the fluorine lining body (5).
4. The butterfly valve with high tightness according to claim 1, characterized in that the surface of the disc (6) is provided with a wear resistant layer (61).
5. The butterfly valve with high tightness according to claim 4, characterized in that said disc (6) comprises a central recess (63) and an outer peripheral projection (62) annularly arranged on the periphery of said central recess (63).
6. The butterfly valve with high sealing performance according to claim 5, wherein the lower end of the upper stem (71) is connected to the upper end of the outer flange (62), and the upper end of the lower stem (11) is connected to the lower end of the outer flange (62).
7. The butterfly valve with high sealing according to claim 1, further comprising an upper sealing structure, the upper sealing structure comprising:
the two belleville springs (2) are sleeved on the upper valve rod (71) and are accommodated in an upper counter bore (72) of the upper valve body (7);
the tetrafluoro cushion (3) is sleeved on the upper valve rod (71) and is positioned below the butterfly spring (2) at the lower end;
and the positioning sleeve (4) is sleeved on the upper valve rod (71) and contained in the sinking cavity (31) of the tetrafluoro cushion (3), and the lower end surface of the positioning sleeve (4) is pressed against the fluorine lining body (5).
8. The butterfly valve with high leaktightness according to claim 1, characterized in that said actuator is a turbo-reducer (8).
9. The butterfly valve with high leaktightness according to claim 8, characterized in that the output of said turbo reducer (8) is connected to the upper end of said upper stem (71).
10. The butterfly valve with high tightness according to claim 9, characterized in that the input end of the turbo reducer (8) is fitted with a handwheel (81).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222458608.1U CN218267268U (en) | 2022-09-16 | 2022-09-16 | Butterfly valve with high leakproofness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222458608.1U CN218267268U (en) | 2022-09-16 | 2022-09-16 | Butterfly valve with high leakproofness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218267268U true CN218267268U (en) | 2023-01-10 |
Family
ID=84714287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222458608.1U Active CN218267268U (en) | 2022-09-16 | 2022-09-16 | Butterfly valve with high leakproofness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218267268U (en) |
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2022
- 2022-09-16 CN CN202222458608.1U patent/CN218267268U/en active Active
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