CN211779042U - Three-eccentric two-way pressing hard-to-hard 0 leakage butterfly valve - Google Patents
Three-eccentric two-way pressing hard-to-hard 0 leakage butterfly valve Download PDFInfo
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- CN211779042U CN211779042U CN202020421502.2U CN202020421502U CN211779042U CN 211779042 U CN211779042 U CN 211779042U CN 202020421502 U CN202020421502 U CN 202020421502U CN 211779042 U CN211779042 U CN 211779042U
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Abstract
The utility model discloses a three eccentric two-way pressure is hit hard 0 and is leaked butterfly valve, including valve body, disk seat and butterfly plate, the inboard integrated into one piece of valve body has the disk seat, be provided with in the valve body the butterfly plate, butterfly plate one side is provided with the clamping ring, the clamping ring with be provided with metal seal ring between the butterfly plate. Has the advantages that: the utility model discloses a three-layer metal seal ring who sets up for the butterfly valve can be applicable to high temperature high pressure and corrosivity operating mode, and pipeline internal pressure is higher, the medium flow rate is very fast, when the butterfly plate is in the part and opens or all open states, and the sealing ring can not wear and tear and drop, has greatly guaranteed the sealing performance of valve, avoids sealed face to leak.
Description
Technical Field
The utility model relates to a valve field, concretely relates to three eccentric two-way pressure are hard to be bumped 0 and are leaked the butterfly valve.
Background
The three-eccentric two-way metal hard sealing butterfly valve has all the advantages of three-eccentric butterfly valve and high reliability of two-way sealing. The sealing surface material of the three-eccentric two-way high-performance butterfly valve comprises alloy steel, polylactone, rubber and polytetrafluoroethylene seal; the connection mode is not only a butt-clamping type, but also a flange type; the driving mode of the three-eccentric two-way high-performance butterfly valve is that besides the electric mode, the three-eccentric two-way high-performance butterfly valve also comprises the following steps: manual, worm-gear drive, pneumatic, etc.
The existing metal hard sealing ring of the three-eccentric two-way pressing hard-to-hard 0 leakage butterfly valve is formed by compounding 2 layers or more than 2 layers of metal sheets and non-metal sheets, and can only be suitable for general non-high-temperature high-pressure and non-corrosive working conditions due to the influence of the physical and chemical properties of the non-metal sheets on the sealing ring. When the pressure in the pipeline is high, the medium flow rate is high, and the butterfly plate is in a partially opened or fully opened state, the high-speed fluid can flush the front surface of the sealing ring on the butterfly plate, so that the nonmetal interlayer on the sealing ring is abraded and even falls off, and the sealing performance of the valve is greatly influenced; when the medium has corrosivity in the pipeline, the nonmetal intermediate layer on the sealing ring easily receives the corruption of medium, arouses the sealed face of valve to leak, consequently needs a utility model to solve current problem.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The sealing ring for metal hard sealing of the existing three-eccentric two-way pressing hard-to-hard 0 leakage butterfly valve is formed by compounding 2 layers or more than 2 layers of metal sheets and non-metal sheets, and can only be suitable for general non-high-temperature, high-pressure and non-corrosive working conditions due to the influence of the physical and chemical properties of the non-metal sheets on the sealing ring. When the pressure in the pipeline is high, the medium flow rate is high, and the butterfly plate is in a partially opened or fully opened state, the high-speed fluid can flush the front surface of the sealing ring on the butterfly plate, so that the nonmetal interlayer on the sealing ring is abraded and even falls off, and the sealing performance of the valve is greatly influenced; when the medium in the pipeline is corrosive, the nonmetal interlayer on the sealing ring is easily corroded by the medium, so that the problem of leakage of the sealing surface of the valve is caused.
(II) technical scheme
The utility model discloses a following technical scheme realizes: the utility model provides a three eccentric two-way pressure are hard to be bumped 0 and are leaked butterfly valve, including valve body, disk seat and butterfly plate, the inboard integrated into one piece of valve body has the disk seat, be provided with in the valve body the butterfly plate, butterfly plate one side is provided with the clamping ring, the clamping ring with be provided with metal seal ring between the butterfly plate, be provided with the butterfly nail on the clamping ring, the butterfly plate opposite side is provided with the valve rod, be provided with fixing bolt on the valve rod, the valve body upper end is provided with the right angle driver, right angle driver one side is provided with the hand wheel.
Furthermore, the right-angle driver is connected with the hand wheel through a bolt, the right-angle driver is connected with the valve body through a bolt, and the right-angle driver is connected with the valve rod through a bearing.
By adopting the technical scheme, the right-angle driver can transmit the horizontal rotating force of the hand wheel to the valve rod, so that the valve rod rotates at a vertical angle, and the butterfly plate is driven to open.
Further, the valve rod with the butterfly plate passes through fixing bolt connects, fixing bolt with the butterfly plate passes through threaded connection, the metal seal ring with the butterfly plate passes through the clamping ring with the butterfly nail is connected.
By adopting the technical scheme, the fixing bolt can tightly connect the valve rod with the butterfly plate, so that the valve rod is stably stressed between the butterfly plates, and the butterfly plate is stably opened.
Furthermore, the clamping ring is in threaded connection with the butterfly nail, the clamping ring is connected with the butterfly plate through a clamping groove, and the metal sealing ring is connected with the butterfly plate through a clamping groove.
Through adopting above-mentioned technical scheme, the clamping ring can be so that metal seal ring closely compresses tightly on the butterfly plate, and then guarantees the sealing performance of valve body, the butterfly nail can be guaranteed the clamping ring closely compresses tightly on the butterfly plate.
Further, the valve rod is connected with the valve body through a bearing, and the fixing bolts are symmetrically arranged on the valve rod.
By adopting the technical scheme, the rotation of the valve rod can drive the butterfly plate to rotate, and then the valve can be opened or closed.
Furthermore, the metal sealing rings are arranged in three layers, and the structures of the three layers of metal sealing rings are consistent.
By adopting the technical scheme, the three layers of the metal sealing rings are arranged, so that the sealing performance between the butterfly plate and the valve seat can be greatly improved, and the sealing effect of the butterfly plate is further ensured.
(III) advantageous effects
Compared with the prior art, the utility model, following beneficial effect has:
the sealing ring for solving the metal hard sealing of the existing three-eccentric bidirectional pressing hard-to-hard 0-leakage butterfly valve is formed by compounding 2 layers or more than 2 layers of metal sheets and non-metal sheets, and can only be suitable for general non-high-temperature, high-pressure and non-corrosive working conditions due to the influence of the physical and chemical properties of the non-metal sheets on the sealing ring. When the pipeline internal pressure is higher, the medium velocity of flow is very fast, when the butterfly plate is in the partial state of opening or all opening, high-speed fluid can produce openly to erode to the sealing ring on the butterfly plate, lead to the wearing and tearing of non-metallic interlayer on the sealing ring to drop even, has greatly influenced the sealing performance of valve, when the medium has corrosivity in the pipeline, non-metallic interlayer on the sealing ring easily receives the corruption of medium, arouses the problem that the sealed face of valve leaked, the utility model discloses a three-layer metal seal ring who sets up for the butterfly valve can be applicable to high temperature high pressure and corrosivity operating mode, and pipeline internal pressure is higher, the medium velocity of flow is very fast, when the butterfly plate is in the partial state of opening or all opening, the sealing ring can not wear and.
Drawings
FIG. 1 is a front view of a triple eccentric bi-directional hard-to-hard 0 leakage butterfly valve according to the present invention;
fig. 2 is a left sectional view of the triple eccentric bidirectional hard-pressed hard-to-hard 0 leakage butterfly valve of the present invention;
fig. 3 is an enlarged view of a position a in a left cross-sectional view of the triple eccentric bidirectional hard-pressing hard-touching 0-leakage butterfly valve of the present invention;
fig. 4 is an explosion diagram of the metal seal ring in the triple eccentric bidirectional pressure hard-touch 0-leakage butterfly valve of the present invention.
The reference numerals are explained below:
1. a valve body; 2. a butterfly plate; 3. pressing a ring; 4. a valve seat; 5. a metal seal ring; 6. a right angle drive; 7. A hand wheel; 8. a valve stem; 9. butterfly nails; 10. and (5) fixing the bolt.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1-4, in the embodiment, the triple-eccentric bidirectional-pressing hard-to-hard 0-leakage butterfly valve includes a valve body 1, a valve seat 4 and a butterfly plate 2, the valve seat 4 is integrally formed on the inner side of the valve body 1, the butterfly plate 2 is arranged in the valve body 1, a pressing ring 3 is arranged on one side of the butterfly plate 2, a metal sealing ring 5 is arranged between the pressing ring 3 and the butterfly plate 2, a butterfly nail 9 is arranged on the pressing ring 3, a valve rod 8 is arranged on the other side of the butterfly plate 2, a fixing bolt 10 is arranged on the valve rod 8, a right-angle actuator 6 is arranged at the upper end.
The right angle driver 6 passes through bolted connection with hand wheel 7, and right angle driver 6 passes through bolted connection with valve body 1, and right angle driver 6 passes through the bearing with valve rod 8 and is connected, and right angle driver 6 can transmit the horizontal turning force of hand wheel 7 to valve rod 8 on, and then makes valve rod 8 rotatory on vertical angle, and then drives butterfly plate 2 and open.
Valve rod 8 passes through fixing bolt 10 with butterfly plate 2 and is connected, and fixing bolt 10 passes through threaded connection with butterfly plate 2, and metal seal ring 5 passes through clamping ring 3 and butterfly nail 9 with butterfly plate 2 and is connected, and fixing bolt 10 can be with valve rod 8 and butterfly plate 2 zonulae occludens, and then guarantees that the atress between valve rod 8 and the butterfly plate 2 is stable, guarantees that butterfly plate 2 opens the process stability.
The clamping ring 3 is connected with the butterfly nail 9 through threads, the clamping ring 3 is connected with the butterfly plate 2 through a clamping groove, the metal sealing ring 5 is connected with the butterfly plate 2 through the clamping groove, the clamping ring 3 can enable the metal sealing ring 5 to be tightly pressed on the butterfly plate 2, the sealing performance of the valve body 1 is guaranteed, and the butterfly nail 9 can guarantee that the clamping ring 3 is tightly pressed on the butterfly plate 2.
The valve rod 8 is connected with the valve body 1 through a bearing, the fixing bolts 10 are symmetrically arranged on the valve rod 8, and the butterfly plate 2 can be driven to rotate by rotation of the valve rod 8, so that the valve can be opened or closed.
The metal sealing ring 5 is arranged in three layers, the structures of the three metal sealing rings 5 are consistent, the three layers of the metal sealing rings 5 are arranged, the sealing performance between the butterfly plate 2 and the valve seat 4 can be greatly improved, and the sealing effect of the butterfly plate 2 is further ensured.
The specific implementation process of this embodiment is as follows: when the butterfly valve is used, the valve body 1 is connected with a pipeline, after the valve body is connected, the hand wheel 7 is rotated, the rotating force of the hand wheel 7 is transmitted to the right-angle driver 6, the right-angle driver 6 transmits the rotating force to the valve rod 8, the valve rod 8 drives the butterfly plate 2 to rotate, the valve is opened, when the valve needs to be closed, the hand wheel 7 is rotated reversely, the valve rod 8 drives the butterfly plate 2 to rotate reversely, the valve is closed, the metal sealing rings 5 arranged in three layers greatly improve the sealing performance between the butterfly plate 2 and the valve seat 4, the sealing performance between the butterfly plate 2 and the valve body 1 is ensured, the butterfly valve can be suitable for high-temperature high-pressure and corrosive working conditions, the pressure in the pipeline is high, the medium flow rate is high, when the butterfly plate 2 is in a partially opened or fully opened state, the metal sealing rings 5 cannot be worn and fall off, and the leakage of the sealing surface is avoided.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and are not intended to limit the spirit and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by the technical solution of the present invention by those skilled in the art should fall into the protection scope of the present invention, and the technical contents claimed by the present invention have been fully recorded in the claims.
Claims (6)
1. Three eccentric two-way pressure is hard to be met hard 0 and is leaked butterfly valve, its characterized in that: including valve body (1), disk seat (4) and butterfly plate (2), the inboard integrated into one piece of valve body (1) has disk seat (4), be provided with in valve body (1) butterfly plate (2), butterfly plate (2) one side is provided with clamping ring (3), clamping ring (3) with be provided with metal seal ring (5) between butterfly plate (2), be provided with butterfly nail (9) on clamping ring (3), butterfly plate (2) opposite side is provided with valve rod (8), be provided with fixing bolt (10) on valve rod (8), valve body (1) upper end is provided with right angle driver (6), right angle driver (6) one side is provided with hand wheel (7).
2. The triple eccentric bi-directional slam-on-hard 0 leak butterfly valve of claim 1, wherein: the right-angle driver (6) is connected with the hand wheel (7) through bolts, the right-angle driver (6) is connected with the valve body (1) through bolts, and the right-angle driver (6) is connected with the valve rod (8) through a bearing.
3. The triple eccentric bi-directional slam-on-hard 0 leak butterfly valve of claim 1, wherein: the valve rod (8) and the butterfly plate (2) are connected through the fixing bolt (10), the fixing bolt (10) is connected with the butterfly plate (2) through threads, and the metal sealing ring (5) is connected with the butterfly plate (2) through the pressing ring (3) and the butterfly nail (9).
4. The triple eccentric bi-directional slam-on-hard 0 leak butterfly valve of claim 1, wherein: the clamping ring (3) is connected with the butterfly nail (9) through threads, the clamping ring (3) is connected with the butterfly plate (2) through a clamping groove, and the metal sealing ring (5) is connected with the butterfly plate (2) through the clamping groove.
5. The triple eccentric bi-directional slam-on-hard 0 leak butterfly valve of claim 1, wherein: the valve rod (8) is connected with the valve body (1) through a bearing, and the fixing bolts (10) are symmetrically arranged on the valve rod (8).
6. The triple eccentric bi-directional slam-on-hard 0 leak butterfly valve of claim 1, wherein: the metal sealing rings (5) are arranged in three layers, and the structures of the three layers of metal sealing rings (5) are consistent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020421502.2U CN211779042U (en) | 2020-03-28 | 2020-03-28 | Three-eccentric two-way pressing hard-to-hard 0 leakage butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020421502.2U CN211779042U (en) | 2020-03-28 | 2020-03-28 | Three-eccentric two-way pressing hard-to-hard 0 leakage butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211779042U true CN211779042U (en) | 2020-10-27 |
Family
ID=72927832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020421502.2U Active CN211779042U (en) | 2020-03-28 | 2020-03-28 | Three-eccentric two-way pressing hard-to-hard 0 leakage butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211779042U (en) |
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2020
- 2020-03-28 CN CN202020421502.2U patent/CN211779042U/en active Active
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