CN206802335U - Metal hard-sealing butterfly valve - Google Patents
Metal hard-sealing butterfly valve Download PDFInfo
- Publication number
- CN206802335U CN206802335U CN201720587997.4U CN201720587997U CN206802335U CN 206802335 U CN206802335 U CN 206802335U CN 201720587997 U CN201720587997 U CN 201720587997U CN 206802335 U CN206802335 U CN 206802335U
- Authority
- CN
- China
- Prior art keywords
- valve
- sealing ring
- hard
- hard sealing
- plate
- 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.)
- Expired - Fee Related
Links
Landscapes
- Lift Valve (AREA)
Abstract
The utility model discloses metal hard-sealing butterfly valve, its valve rod is eccentric to be set through valve body, valve plate is tilted located at the inner chamber of valve body, and bias is fixed on valve rod, the inner chamber of valve body is provided with valve seat, valve seat is coordinated by seal assembly and valve plate sealing, seal assembly includes sealing surface and hard sealing ring I, hard sealing ring I both sides are arranged with hard sealing ring II, hard sealing ring I and hard sealing ring hard sealing ring II are set in the groove of valve plate, and soft seal circle I is provided between hard sealing ring I and valve plate, soft seal circle II is provided between hard sealing ring II and valve plate, the back side of valve body is fixed with pressing plate by screw.Butterfly valve of the present utility model realizes that valve plate coordinates with valve base chamber better seal by two kinds of hard sealing rings and soft seal circle, also allows for adjusting and safeguards, and using double eccentric mounting structures, good combination property, service life length.
Description
Technical field
The utility model belongs to valve technology field, more particularly to a kind of metal hard-sealing butterfly valve.
Background technology
Butterfly valve is used widely in industries such as metallurgy, steel, petrochemical industry, electric power, water conservancy, environmental protection.The sealing of butterfly valve
Performance is realized by the sealed connection of sealing ring and valve plate, but consume of the existing butterfly valve in the case of HTHP is very
Seriously, the sealing ring of common hard seal butterfly valve is made of single metal material, using combination property after a period of time compared with
It is low, it is necessary to frequently change, maintenance cost is higher.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of rational in infrastructure, and the preferable metallic hard of combination property is close
Sealing butterfly valve.
In order to solve the above technical problems, the technical solution adopted in the utility model is：
Metal hard-sealing butterfly valve, including valve body, valve plate and the electronic handwheel for being fixed on body top, electronic handwheel it is defeated
Valve rod is fixed with shaft, valve rod is eccentric to be set through valve body, and valve plate is tilted located at the inner chamber of valve body, and bias is fixed on valve rod
On, the inner chamber of valve body is provided with valve seat, and valve seat is coordinated by seal assembly and valve plate sealing, and seal assembly includes sealing surface and hard
Sealing ring I, sealing surface are fixed on valve seat, and hard sealing ring I both sides are arranged with hard sealing ring II, hard sealing ring I
It is set in the groove of valve plate, and is provided between hard sealing ring I and valve plate soft close with hard sealing ring hard sealing ring II
Seal I, soft seal circle II is provided between hard sealing ring II and valve plate, the back side of valve body is fixed with pressing plate by screw, pressure
The end of plate is spacing to hard sealing ring II by boss.
The hard sealing ring II is integrated by stainless steel substrates and graphite flake intersecting.
The hard sealing ring I is stainless steel, and its thickness is more than the thickness of stainless steel substrates.
The section of the soft seal circle I is rounded, soft seal circle II ellipsoidal cross section, and the front of valve plate is in cone
Planar.
Spring is arranged between the head of the screw and pressing plate.
The utility model has the advantages that：Butterfly valve of the present utility model is realized by two kinds of hard sealing rings and soft seal circle
Valve plate coordinates with valve base chamber better seal, also allows for adjusting and safeguards, and uses double eccentric mounting structures, good combination property,
Service life is grown.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the mplifying structure schematic diagram of a-quadrant in Fig. 1.
Wherein, 1, electronic handwheel, 2, valve body, 3, valve rod, 4, valve plate, 5, valve seat, 51, sealing surface, 6, hard sealing ring I,
7th, hard sealing ring II, 71, stainless steel substrates, 72, graphite flake, 8, soft seal circle I, 81, soft seal circle II, 9, pressing plate, 91,
Boss, 10, screw, 11, spring.
Embodiment：
As depicted in figs. 1 and 2, metal hard-sealing butterfly valve, including valve body 2, valve plate 4 and the electricity for being fixed on the top of valve body 2
Start wheel 1, valve rod 3 is fixed with the output shaft of electronic handwheel 1, valve rod 3 is eccentric to be set through valve body 2, and the inclination of valve plate 4 is located at valve
The inner chamber of body 2, and bias is fixed on valve rod 3, and wear-compensating, the inner chamber of valve body 2 are carried out to sealing pair using double eccentric structures
Provided with valve seat 5, valve seat 5 is coordinated by seal assembly and the sealing of valve plate 4, and seal assembly includes sealing surface 51 and hard sealing ring
I6, sealing surface 51 are fixed on valve seat 5, and hard sealing ring I6 both sides are arranged with hard sealing ring II7, hard sealing ring I6
It is set in the groove of valve plate, and is provided between hard sealing ring I6 and valve plate 4 soft with hard sealing ring hard sealing ring II7
Sealing ring I8, soft seal circle II81 is provided between hard sealing ring II7 and valve plate 4, the back side of valve body 2 is fixed by screw 10
There is pressing plate 9, the end of pressing plate 9 is spacing to hard sealing ring II7 by boss 91, and boss 91 can be embedded in hard sealing ring II7,
To reach more preferable limit effect.
In the utility model, hard sealing ring II7 is integrated by stainless steel substrates 71 and the intersecting of graphite flake 72, preferably
Combination be close to pressing plate 9 and valve plate 4 for graphite flake 72, stainless steel substrates 71 are close to hard sealing ring I6, hard sealing ring I6
For stainless steel, and its thickness is more than the thickness of stainless steel substrates 71 so that no matter seal assembly is in room temperature chamber pressure or high temperature
Excellent sealing is respectively provided with high pressure operating mode.
Soft seal circle I8 section is rounded, and soft seal circle II81 ellipsoidal cross section, soft seal circle is adopted
It is made of soft materials such as polytetrafluoroethylene (PTFE), it is ensured that the high leakproofness of valve, bullet is arranged between the head of screw 10 and pressing plate 9
Spring 11, avoid pressing plate 9 from being completely fixed hard sealing ring, obstruct its elastic deformation；Valve plate 4 is obliquely installed, and its front is in cone
Planar, make valve opening and closing rapid, flow resistance loss is smaller.
Claims (5)
1. metal hard-sealing butterfly valve, including valve body, valve plate and the electronic handwheel for being fixed on body top, the electronic handwheel
Valve rod is fixed with output shaft, it is characterised in that：The valve rod is eccentric to be set through valve body, and the valve plate is tilted located at valve body
Inner chamber, and bias is fixed on valve rod, the inner chamber of the valve body is provided with valve seat, and the valve seat is sealed by seal assembly and valve plate
Coordinate, the seal assembly includes sealing surface and hard sealing ring I, the sealing surface are fixed on valve seat, the hard sealing
Circle I both sides are arranged with hard sealing ring II, hard sealing ring I and hard sealing ring the hard sealing ring II and are set in valve
In the groove of plate, and soft seal circle I, the hard sealing ring II and valve plate are provided between the hard sealing ring I and valve plate
Between be provided with soft seal circle II, the back side of the valve body is fixed with pressing plate by screw, and the end of the pressing plate passes through boss
It is spacing to hard sealing ring II.
2. metal hard-sealing butterfly valve according to claim 1, it is characterised in that：The hard sealing ring II is by stainless steel substrates
It is integrated with graphite flake intersecting.
3. metal hard-sealing butterfly valve according to claim 1 or 2, it is characterised in that：The hard sealing ring I is stainless steel
Material, and its thickness is more than the thickness of stainless steel substrates.
4. metal hard-sealing butterfly valve according to claim 1, it is characterised in that：The section of the soft seal circle I is in circle
Shape, the ellipsoidal cross section of the soft seal circle II, the front of the valve plate is in conical surface shape.
5. metal hard-sealing butterfly valve according to claim 1, it is characterised in that：Covered between the head of the screw and pressing plate
Provided with spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720587997.4U CN206802335U (en) | 2017-05-25 | 2017-05-25 | Metal hard-sealing butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720587997.4U CN206802335U (en) | 2017-05-25 | 2017-05-25 | Metal hard-sealing butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206802335U true CN206802335U (en) | 2017-12-26 |
Family
ID=60741696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720587997.4U Expired - Fee Related CN206802335U (en) | 2017-05-25 | 2017-05-25 | Metal hard-sealing butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206802335U (en) |
-
2017
- 2017-05-25 CN CN201720587997.4U patent/CN206802335U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203131093U (en) | Combined type valve seat anti-surge hemispherical valve | |
| CN103470793B (en) | Double inclined plane eccentric-butterfly-valve | |
| CN206802335U (en) | Metal hard-sealing butterfly valve | |
| CN203500514U (en) | Eccentric butterfly valve with two inclined planes | |
| CN201627949U (en) | Large-diameter parallel single disc gate valve | |
| CN102954233A (en) | High-pressure soft-seal butterfly valve | |
| CN203560467U (en) | Triple-eccentric metal hard-sealing butterfly valve | |
| CN202946699U (en) | All-metal both-way pressing butterfly valve | |
| CN201436427U (en) | Bidirectional metal seal butterfly valve with a float valve base | |
| CN202274121U (en) | Valve port sealing structure of soft seal butterfly valve | |
| CN201982652U (en) | Flange gasket | |
| CN203743476U (en) | Pollution-free metal membrane seal ball valve | |
| CN202302015U (en) | Valve plate with high strength | |
| CN204344984U (en) | Face dress floating ball valve directly | |
| CN209671632U (en) | A kind of heat distribution pipe network butterfly valve | |
| CN201651333U (en) | Special valve for chlorine gas | |
| CN202065482U (en) | Two-way high-pressure three-eccentric integral type metallic hard seal butterfly valve | |
| CN202252030U (en) | Hard-seal butterfly valve adopting male and female face arc transition | |
| CN204828706U (en) | Novel two way seal butterfly valve | |
| CN203009871U (en) | Valve seat of double-eccentric metal sealing butterfly valve | |
| CN204300391U (en) | A kind of two way sealed high-performance butterfly valve | |
| CN215214770U (en) | Three-eccentric soft sealing butterfly valve | |
| CN207454786U (en) | A kind of soft valve seat and hard valve seat combination sealing fire-type double eccentric butterfly valve | |
| CN201925499U (en) | Sealing ring of eccentric butterfly valve | |
| CN202520969U (en) | Triple-eccentric butterfly valve capable of bearing high pressure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171226 Termination date: 20180525 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |