CN205806557U - Two-way hard seal Butterfly-type eccentric ball valve - Google Patents
Two-way hard seal Butterfly-type eccentric ball valve Download PDFInfo
- Publication number
- CN205806557U CN205806557U CN201620772573.0U CN201620772573U CN205806557U CN 205806557 U CN205806557 U CN 205806557U CN 201620772573 U CN201620772573 U CN 201620772573U CN 205806557 U CN205806557 U CN 205806557U
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- CN
- China
- Prior art keywords
- seal ring
- valve
- flap
- ball
- spherical seal
- 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.)
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Abstract
This utility model relates to a kind of two-way hard seal Butterfly-type eccentric ball valve, and including valve body, flap, valve seat, valve rod, between flap with valve rod, bias is connected；Mainly flap is made up of ball clack, spherical seal ring, spherical seal ring is inlaid on the radial direction step of ball clack, arranging ti-ni shape memory alloy lining between the radial direction step and axial circular cylinder of spherical seal ring and ball clack, spherical seal ring is fixedly mounted on ball clack by sphere gland.Utilize ti-ni shape memory alloy high resiliency performance, make the side that sealing surface circumference stress is bigger that elastic deformation to occur, automatically adjust the seal pressure of sealing pair circumference, keep sealing pair circumferential sealing power uniform, and can compensate with automatic centering and automatic surpassed distance, good seal performance.
Description
Technical field
This utility model belongs to valve field, particularly relates to a kind of ball valve.
Background technology
The flap of Butterfly-type eccentric ball valve and valve rod use butterfly valve attachment structure, valve clack sealing surface to use ball with sealing surface of seat
The ball face sealing structure of valve, has both that butterfly valve structure length is short, volume is little, lightweight and eccentric ball valve opens and closes light, sealing surface friction
Little advantage.But, existing Butterfly-type eccentric ball valve when flap ball face sealing face and valve seat ball face sealing face closure state, due to
There is bias with flap in valve rod, makes flap ball face sealing face circumferencial direction sealing force uneven so that the less side of seal pressure
Leaking, sealing property is poor.
Summary of the invention
The purpose of this utility model is the shortcoming existed for prior art, it is provided that a kind of sealing pair circumferencial direction sealing force
Uniformly, the two-way hard seal Butterfly-type eccentric ball valve of good seal performance.
The technical solution of the utility model includes valve body, flap, valve seat, valve rod, and between flap with valve rod, bias is connected；Main
If flap is made up of ball clack, spherical seal ring, spherical seal ring is inlaid on the radial direction step of ball clack, spherical seal ring with
Arranging ti-ni shape memory alloy lining between radial direction step and the axial circular cylinder of ball clack, spherical seal ring is by the fixing peace of sphere gland
It is contained on ball clack.
The utility model has the advantages that and ti-ni shape memory alloy lining is set between spherical seal ring and ball clack, utilize titanium nickel to remember
Recall alloy high resiliency performance, make the side that sealing surface circumference stress is bigger that elastic deformation to occur, automatically adjust sealing pair circumference
Seal pressure, keeps sealing pair circumferential sealing power uniform, and can compensate with automatic centering and automatic surpassed distance, sealing property
Good.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Two-way hard seal Butterfly-type eccentric ball valve as shown in Figure 1, including valve body 1, flap, valve seat 6, valve rod, flap and valve
Eccentric connection between bar, i.e. valve rod centrage is eccentrically mounted with flap plane centreline, and valve rod centrage is inclined with valve clack sealing surface
Feeling at ease dress, flap plane centreline overlaps with valve channel centrage, and valve rod is made up of lower valve rod 2 and upper valve rod 7, upper valve rod 7
And installing filler 8 between valve body 1, upper valve rod 7 upper end is connected with drive mechanism 10 rotating shaft, drive mechanism 10 is by the fixing peace of support 9
It is contained on valve body 1；Flap is made up of ball clack 5, spherical seal ring 3, and spherical seal ring 3 is inlaid on the radial direction step of ball clack 5,
Ti-ni shape memory alloy lining 4, spherical seal ring 3 are installed between radial direction step and the axial circular cylinder of spherical seal ring 3 and ball clack 5
Being fixedly mounted on ball clack 5 by sphere gland 11, spherical seal ring 3 has the ball face sealing face cooperated with valve seat 6, at ball
When face seal ring 3 and valve seat 6 closure state, utilize the elasticity of ti-ni shape memory alloy lining 4, by axial elastic deformation, automatically
Adjust the uniformity of sealing pair circumferential sealing power, by elastomeric radial, make spherical seal ring 3 automatic centering with automatic
Surpassed distance compensates.
Claims (1)
1. a two-way hard seal Butterfly-type eccentric ball valve, including valve body (1), flap, valve seat (6), valve rod, between flap and valve rod
Eccentric connection；It is characterized in that flap is made up of ball clack (5), spherical seal ring (3), spherical seal ring (3) is inlaid in ball clack (5)
Radially on step, ti-ni shape memory alloy is installed between spherical seal ring (3) and the radial direction step of ball clack (5) and axial circular cylinder
Lining (4), spherical seal ring (3) is fixedly mounted on ball clack (5) by sphere gland (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620772573.0U CN205806557U (en) | 2016-07-05 | 2016-07-05 | Two-way hard seal Butterfly-type eccentric ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620772573.0U CN205806557U (en) | 2016-07-05 | 2016-07-05 | Two-way hard seal Butterfly-type eccentric ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205806557U true CN205806557U (en) | 2016-12-14 |
Family
ID=57508958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620772573.0U Active CN205806557U (en) | 2016-07-05 | 2016-07-05 | Two-way hard seal Butterfly-type eccentric ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205806557U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11555557B2 (en) | 2020-07-17 | 2023-01-17 | Goodrich Corporation | Mitigating ice build up in a fluid handling assembly |
-
2016
- 2016-07-05 CN CN201620772573.0U patent/CN205806557U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11555557B2 (en) | 2020-07-17 | 2023-01-17 | Goodrich Corporation | Mitigating ice build up in a fluid handling assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |