CN216143199U - Four-eccentric all-metal hard sealing butterfly valve - Google Patents
Four-eccentric all-metal hard sealing butterfly valve Download PDFInfo
- Publication number
- CN216143199U CN216143199U CN202122067917.1U CN202122067917U CN216143199U CN 216143199 U CN216143199 U CN 216143199U CN 202122067917 U CN202122067917 U CN 202122067917U CN 216143199 U CN216143199 U CN 216143199U
- Authority
- CN
- China
- Prior art keywords
- valve body
- sealing
- butterfly
- metal
- valve
- 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
Images
Abstract
The utility model relates to a four-eccentric all-metal hard seal butterfly valve, which comprises: a butterfly plate is arranged inside the valve body; a sealing pair is arranged in the valve body; a butterfly plate sealing structure is arranged on the butterfly plate, and the butterfly plate sealing structure is attached to the sealing pair for sealing; the sealing pair is adopted, the sealing surface of the valve body is an all-metal hard sealing ring and is fixed on the valve body by a screw pressing plate, and the sealing surface of the butterfly plate is also an all-metal hard sealing ring and is fixed on the butterfly plate by a screw pressing plate. The valve is sealed to reach 6 levels when being closed; and because the valve body sealing ring and the butterfly plate sealing ring are all-metal hard alloy, the valve body sealing ring and the butterfly plate sealing ring are wear-resistant, and can effectively seal for a long time by 6 grades, and the sealing property is improved.
Description
Technical Field
The embodiment of the utility model relates to a butterfly valve, in particular to a four-eccentric all-metal hard seal butterfly valve.
Background
The sealing pair of the general four-eccentric hard sealing butterfly valve is made of hard alloy formed by overlaying welding on the sealing surface of the valve body, the sealing surface of the butterfly plate is made of multi-layer stainless steel sheets and graphite sheets or polytetrafluoroethylene, the sealing of the butterfly plate mainly depends on the graphite sheets, the effective sealing reaches 6 grades in a short time, and the sealing can only reach 4 grades after the graphite sheets are worn, because the sealing is made of the stainless steel sheets and the sealing surface of the valve body, and the sealing is caused by processing and assembling precision errors. It is necessary to design and manufacture a four-eccentric all-metal hard seal butterfly valve in a complete sense.
SUMMERY OF THE UTILITY MODEL
An object of an embodiment of the present invention is to provide a four-eccentric all-metal hard seal butterfly valve with a wear-resistant butterfly plate seal structure.
In order to achieve the above object, an embodiment of the present invention provides a four-eccentric all-metal hard seal butterfly valve, including:
a valve body;
the butterfly plate is arranged in the valve body;
the sealing pair is arranged in the valve body;
the butterfly plate sealing structure is arranged on the butterfly plate and is attached to the sealing pair for sealing.
Furthermore, the sealing pair is formed by overlaying hard alloy on the sealing surface of the inner ring of the valve body.
Further, the butterfly plate sealing structure further comprises:
the first pressing plate is fixed on the butterfly plate through threads;
the butterfly plate metal sealing ring is fixed between the first pressure plate and the butterfly plate;
the second pressure plate is fixed on the valve body by a pressure plate screw;
the valve body metal sealing ring is fixed between the second pressure plate and the valve body;
the butterfly plate metal sealing ring is obliquely and eccentrically attached to the valve body metal sealing ring to perform hard sealing.
Furthermore, the butterfly plate is arranged in the inner ring of the valve body, is connected with a driving device through a valve rod, and rotates in the inner ring of the valve body to be opened and closed.
Further, a support is sleeved on the valve rod above the valve body; a stuffing box is sleeved on the valve rod on the support; and a packing is embedded between the valve rod and the valve body below the packing box.
Further, the driving device further includes:
the worm gear device is movably connected with the output end of the worm gear device at one end of the valve rod;
and the hand wheel is fixed on the input end of the worm gear device.
Furthermore, a circle of fixed threaded holes are formed in the valve body.
Furthermore, the butterfly plate metal sealing ring and the valve body metal sealing ring are made of all-metal hard sealing rings.
Compared with the prior art, the sealing pair is adopted, the sealing surface of the valve body is an all-metal hard sealing ring and is fixed on the valve body by the screw pressing plate, and the sealing surface of the butterfly plate is also an all-metal hard sealing ring and is fixed on the butterfly plate by the screw pressing plate. The valve is sealed to reach 6 levels when being closed; and because the valve body sealing ring and the butterfly plate sealing ring are all-metal hard alloy, the valve body sealing ring and the butterfly plate sealing ring are wear-resistant, and can effectively seal for a long time by 6 grades, and the sealing property is improved.
Drawings
FIG. 1 is a schematic view of the present invention in a front view;
FIG. 2 is a schematic left-side view of the present invention;
fig. 3 is an enlarged schematic view of a portion a of fig. 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that numerous technical details are set forth in order to provide a better understanding of the present application in various embodiments of the present invention. However, the technical solutions claimed in the claims of the present application can be implemented without these technical details and with various changes and modifications based on the following embodiments.
Embodiments of the present invention relate to a four-eccentric all-metal hard seal butterfly valve, as shown in fig. 1 and 2, including:
a valve body 1 as a body of the four-eccentric all-metal hard seal butterfly valve in the embodiment;
a butterfly plate 7 is arranged inside the valve body 1, and the butterfly plate 7 rotates inside the valve body 1 to realize the opening and closing of a butterfly valve;
a sealing pair 30 is arranged inside the valve body 1; the sealing pair 30 is mainly used for sealing the inside of the valve body 1, the sealing pair 30 is arranged on the valve body 1,
the butterfly plate 7 is provided with a butterfly plate sealing structure 40, and the butterfly plate sealing structure 40 is attached to the sealing pair 30 for sealing. The butterfly plate sealing structure 40 is matched with the sealing pair 30, so that the sealing of the four-eccentric all-metal hard sealing butterfly valve can be realized, the sealing pair 30 and the butterfly plate sealing structure 40 are adopted, and the sealing of the four-eccentric all-metal hard sealing butterfly valve in the embodiment reaches 6 levels when the butterfly plate is closed; the sealing performance is improved. The technical problem that the sealing of a general four-eccentric hard sealing butterfly valve can only reach 4 levels is solved.
In order to achieve the above technical effects, as shown in fig. 1 and 2, the seal pair 30 is formed by depositing a hard alloy on a sealing surface of an inner ring of the valve body 1. The sealing pair 30 adopts a valve body sealing surface which is an all-metal hard sealing ring, has wear resistance, effectively seals 6 grades for a long time, and improves the sealing property.
In order to achieve the above technical effects, as shown in fig. 3, the butterfly plate sealing structure 40 further includes:
the butterfly plate 7 is screwed with the first pressing plate 41, the first pressing plate 41 mainly plays a role in fixing,
a butterfly plate metal sealing ring 42 is fixed between the first pressure plate 41 and the butterfly plate 7, the butterfly plate metal sealing ring 42 is mainly used for sealing with the sealing pair 30, and the butterfly plate metal sealing ring 42 is also an all-metal hard sealing ring; the same all-metal hard material is adopted, so that the wear-resistant effect is mainly achieved, the 6-grade sealing effect is achieved effectively for a long time, and the sealing property is improved.
A second pressure plate 43, wherein the second pressure plate 43 is fixed on the valve body 1 by a pressure plate screw 44;
a valve body metal sealing ring 45, wherein the valve body metal sealing ring 45 is fixed between the second pressure plate 43 and the valve body 1;
the butterfly plate metal sealing ring 42 is obliquely and eccentrically attached to the valve body metal sealing ring 45 for hard sealing. After the butterfly plate metal sealing ring 42 and the valve body metal sealing ring 45 are all made of all-metal hard sealing rings, the sealing is ensured to reach 6 levels when the butterfly plate metal sealing ring is closed; the sealing performance is improved, meanwhile, the butterfly plate metal sealing ring 42 and the valve body metal sealing ring 45 are very wear-resistant, and the technical problem that the sealing performance of a general four-eccentric hard sealing butterfly valve can only reach 4 levels can be well solved.
In order to achieve the above-described technical effects, as shown in fig. 1 and 2, the butterfly plate 7 is provided in the inner ring of the valve body 1, and is connected to the driving device 20 via the valve rod 6, and is rotated in the inner ring of the valve body 1 to open and close the valve.
In order to achieve the technical effects, as shown in fig. 1 and 2, in order to ensure the sealing of the valve body 1, a support 12 is sleeved on the valve rod 6 above the valve body 1; a stuffing box 11 is sleeved on the valve rod 6 on the support 12; a packing 10 is inserted between the valve stem 6 and the valve body 1 below the packing box 11.
In order to realize the rotation of the valve, the driving device 20 further comprises:
one end of the valve rod 6 is movably connected with the output end of a worm gear 13;
a hand wheel 14 is fixed on the input end of the worm gear 13, and the hand wheel 14 is mainly used for rotating the worm gear 13.
In order to realize the installation of the valve of the embodiment, a circle of fixing threaded holes 8 are formed in the valve body 1.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples for carrying out the utility model, and that various changes in form and details may be made therein without departing from the spirit and scope of the utility model in practice.
Claims (8)
1. The utility model provides a four eccentric full metal butterfly valves sealed firmly which characterized in that includes:
a valve body;
the butterfly plate is arranged in the valve body;
the sealing pair is arranged in the valve body;
the butterfly plate sealing structure is arranged on the butterfly plate and is attached to the sealing pair for sealing.
2. The four-eccentric all-metal hard seal butterfly valve according to claim 1, wherein the seal pair is formed by overlaying a hard alloy on the sealing surface of the inner ring of the valve body.
3. The four-eccentric all-metal hard seal butterfly valve according to claim 1, wherein said butterfly plate seal structure further comprises:
the first pressing plate is fixed on the butterfly plate through threads;
the butterfly plate metal sealing ring is fixed between the first pressure plate and the butterfly plate;
the second pressure plate is fixed on the valve body by a pressure plate screw;
the valve body metal sealing ring is fixed between the second pressure plate and the valve body;
the butterfly plate metal sealing ring is obliquely and eccentrically attached to the valve body metal sealing ring to perform hard sealing.
4. The four-eccentric all-metal hard seal butterfly valve according to claim 1, wherein the butterfly plate is disposed in the inner ring of the valve body, and is connected to a driving device through a valve stem, and is rotated in the inner ring of the valve body to be opened and closed.
5. The four-eccentric all-metal hard seal butterfly valve according to claim 4, wherein a support is sleeved on the valve stem above the valve body; a stuffing box is sleeved on the valve rod on the support; and a packing is embedded between the valve rod and the valve body below the packing box.
6. The four-eccentric all-metal hard seal butterfly valve according to claim 4, wherein said drive means further comprises:
the worm gear device is movably connected with the output end of the worm gear device at one end of the valve rod;
and the hand wheel is fixed on the input end of the worm gear device.
7. The four-eccentric all-metal hard seal butterfly valve according to claim 1, wherein a ring of fixed threaded holes is provided in said valve body.
8. The four-eccentric all-metal hard seal butterfly valve according to claim 3, wherein the butterfly plate metal seal ring and the valve body metal seal ring are made of all-metal hard seal rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122067917.1U CN216143199U (en) | 2021-08-30 | 2021-08-30 | Four-eccentric all-metal hard sealing butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122067917.1U CN216143199U (en) | 2021-08-30 | 2021-08-30 | Four-eccentric all-metal hard sealing butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216143199U true CN216143199U (en) | 2022-03-29 |
Family
ID=80810505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122067917.1U Active CN216143199U (en) | 2021-08-30 | 2021-08-30 | Four-eccentric all-metal hard sealing butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216143199U (en) |
-
2021
- 2021-08-30 CN CN202122067917.1U patent/CN216143199U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202733009U (en) | Flange two-way pressure hard sealing butterfly valve | |
| CN216143199U (en) | Four-eccentric all-metal hard sealing butterfly valve | |
| CN113669466A (en) | Four-eccentric all-metal hard sealing butterfly valve | |
| CN203115132U (en) | Two-way sealing three-eccentric center butterfly valve | |
| CN2525320Y (en) | Small torque leak tess adjustable ball valve | |
| CN211202909U (en) | Butterfly valve | |
| CN210716002U (en) | Double-eccentric butterfly valve with high sealing performance | |
| CN2709727Y (en) | Double-sealing blind rod sluice valve | |
| CN206145152U (en) | Multi -level two -way butterfly valve sealed firmly | |
| CN209180391U (en) | High sealing liquefied gas shut-off valve | |
| CN203488744U (en) | All-metal hard seal quickly-closed butterfly valve resistant to high temperature, high pressure and washout | |
| CN207049345U (en) | Fluorine-lined flange, to pressing from both sides dual-purpose butterfly valve | |
| CN202867900U (en) | Two-way omni-seal gate valve | |
| CN202302031U (en) | Hand-switching valve | |
| CN212273068U (en) | Wear-proof butterfly valve | |
| CN219888786U (en) | Axial sealing floating ball valve | |
| CN214743403U (en) | Large-caliber quick-opening-closing low-flow-resistance bidirectional sealing valve | |
| CN205446795U (en) | Ball valve structure that metal is sealed firmly | |
| CN214946455U (en) | Six-eccentric all-metal bidirectional pressure butterfly valve | |
| CN203176376U (en) | Multi-level sealing stop valve | |
| CN219888777U (en) | Eccentric ball valve of simple structure easy operation | |
| CN214008142U (en) | High-temperature hard-sealing fixed ball valve | |
| CN209511174U (en) | A kind of harsh operating condition eccentric rotary valve that surges of solid-liquid two-phase | |
| CN212429766U (en) | Fluorine-lined butterfly valve | |
| CN216555473U (en) | Tank bottom ball valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |