CN203162182U - Bispherical elastic two-way hard sealing butterfly valve - Google Patents
Bispherical elastic two-way hard sealing butterfly valve Download PDFInfo
- Publication number
- CN203162182U CN203162182U CN 201320101371 CN201320101371U CN203162182U CN 203162182 U CN203162182 U CN 203162182U CN 201320101371 CN201320101371 CN 201320101371 CN 201320101371 U CN201320101371 U CN 201320101371U CN 203162182 U CN203162182 U CN 203162182U
- Authority
- CN
- China
- Prior art keywords
- valve
- sealing
- valve seat
- valve plate
- sealing surface
- 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
Images
Landscapes
- Lift Valve (AREA)
Abstract
A bispherical elastic two-way hard sealing butterfly valve comprises a valve body, a valve shaft, a valve seat and a valve plate, wherein the valve shaft is mounted in the valve body; the valve plate is fixed on the valve shaft; the valve seat is mounted in the valve body by a gland; the valve seat and the valve plate employ spherical sealing surfaces; an elastic alloy layer is arranged on the spherical sealing surface of the valve seat; and a temperature-resistant and corrosion-resistant alloy material layer is welded on the spherical sealing surface of the valve plate in a build-up manner. The valve is simple in structure, convenient to process and short in production cycle and can ensure reliable sealing in case of thermal deformation of the sealing; the valve seat has the double advantages of metal hard sealing and soft sealing; and the valve has the sealability of zero leakage at either low temperature or high temperature, can effectively ensure the forward and reverse zero leakage of the sealing at -40-650 DEG C, realizes the two-way sealing, can be used for a long time under a high temperature condition of 650 DEG C and is long in service life.
Description
Technical field
The utility model belongs to valve technology field, particularly a kind of pair of sphere elasticity two-way hard seal butterfly valve.
Background technique
Butterfly valve is used in the middle of the various pipelines widely.At present, existing reed valve adopt at valve plate in market installed the hard seal ring of multilayer more, causes valve body and sealing surface of valve plate processed complex, process-cycle long, and poor sealing performance causes leakage easily, and working life is shorter; In addition, such butterfly valve also can't be realized high temperature resistant and function two way sealed.
The model utility content
The purpose of this utility model provides a kind of simple in structure, with short production cycle, resistant to elevated temperatures pair of sphere elasticity two-way hard seal butterfly valve.
For achieving the above object, the technical solution of the utility model is: two sphere elasticity two-way hard seal butterfly valves, comprise valve body, valve shaft, valve seat and valve plate, valve shaft is installed in the valve body, valve plate is fixed on the valve shaft, and valve seat is installed in the valve body by gland, and described valve seat and valve plate all adopt spherical sealing surface, the spherical sealing surface of valve seat is provided with the elastic alloy layer, and built-up welding has heatproof, corrosion resistant alloy material layer on the spherical sealing surface of valve plate.
Described valve plate is eccentric structure.
Be provided with seal ring between described valve seat and the valve body.
Compared with prior art, the utility model has the advantages that:
1, the utility model comprises valve body, valve shaft, valve seat and valve plate, valve shaft is installed in the valve body, valve plate is fixed on the valve shaft, valve seat is installed in the valve body by gland, described valve seat and valve plate all adopt spherical sealing surface, the spherical sealing surface of valve seat is provided with the elastic alloy layer, built-up welding has heatproof on the spherical sealing surface of valve plate, the corrosion resistant alloy material layer, it is simple in structure, is convenient to processing, and is with short production cycle, can guarantee to seal the thermal distortion reliable sealing, valve seat has the two-fold advantage of metal hard-sealing and soft seal, no matter under low temperature still is high-temperature condition, all has the sealability of zero leakage, can effectively guarantee the sealing zero leakage of Direct/Reverse in-40 ℃ ~ 650 ℃ scopes, realize two way sealed, can under 650 ℃ of high temperature conditions, use long service life for a long time.
2, valve plate is eccentric structure, and it is more tight to guarantee that valve plate is closed Shi Yueguan, and sealability is reliable, can guarantee after the unlatching that the spherical sealing surface of valve seat and the spherical sealing surface of valve plate disengage fully, and the protection sealing surface is injury-free.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of valve seat among Fig. 1;
Fig. 3 is the structural representation of valve plate among Fig. 1;
Fig. 4 is the left view of Fig. 3.
Embodiment
Two sphere elasticity two-way hard seal butterfly valves as shown in Figure 1, Figure 2, Figure 3 and Figure 4, it comprises valve shaft 1, valve body 2, valve seat 3 and valve plate 4, and valve shaft 1 is installed in the valve body 2, and valve plate 4 is positioned at valve body 2, and is fixed on the valve shaft 1 by pin.Valve seat 3 is installed in the valve body 2 by gland 5, is provided with seal ring between valve seat 3 and valve body 2.Valve seat 3 all adopts spherical sealing surface with valve plate 4, can guarantee to seal the thermal distortion reliable sealing; The spherical sealing surface 6 of valve seat 3 is provided with the elastic alloy layer, makes valve seat 3 have the two-fold advantage of metal hard-sealing and soft seal, no matter under low temperature still is high-temperature condition, all has the sealability of zero leakage; Built-up welding has heatproof, corrosion resistant alloy material layer on the spherical sealing surface 7 of valve plate 4, can effectively guarantee the sealing zero leakage of Direct/Reverse in-40 ℃ ~ 650 ℃ scopes.
In the present embodiment, valve seat 3 adopts sphere elastic alloy seal ring; Valve plate 4 is eccentric structure, and it is more tight to guarantee that valve plate 4 is closed Shi Yueguan, and sealability is reliable, can guarantee after the unlatching that the spherical sealing surface of valve seat 3 and the spherical sealing surface of valve plate 4 disengage fully, and the protection sealing surface is injury-free.
Working principle of the present utility model is: when positive stream mode (the media flow direction is identical with valve plate 4 sense of rotation), to be the moment of transmission device and pressure medium produce the acting in conjunction of valve plate 4 pressure of sealing surface; When the forward pressure medium increased, the spherical sealing surface of valve plate 4 and the extruding of the sealing surface of valve seat 3 were more tight, and sealing effect is more good; When the adverse current state, valve plate 4 and valve seat 3 realized sealing by self elasticity of valve seat 3, increase along with reverse media pressure, unit positive pressure between valve plate 4 and the valve seat 3 is during less than pressure medium, and sphere is resiliently sealed in energy of deformation stored behind the stand under load compaction forces of valve plate 4 and valve seat 3 sealing surfaces is played automatic compensating action.
When the utility model uses, drive valve plate 4 by valve shaft 1 and in 90 ° of scopes, rotate, thereby reach the purpose of keying, with the function that realizes blocking, be communicated with or regulate flow.
Claims (3)
1. two sphere elasticity two-way hard seal butterfly valves, comprise valve body, valve shaft, valve seat and valve plate, valve shaft is installed in the valve body, valve plate is fixed on the valve shaft, valve seat is installed in the valve body by gland, it is characterized in that: described valve seat and valve plate all adopt spherical sealing surface, and the spherical sealing surface of valve seat is provided with the elastic alloy layer, and built-up welding has heatproof, corrosion resistant alloy material layer on the spherical sealing surface of valve plate.
2. as claimed in claim 1 pair of sphere elasticity two-way hard seal butterfly valve, it is characterized in that: described valve plate is eccentric structure.
3. as claimed in claim 1 or 2 pair of sphere elasticity two-way hard seal butterfly valve is characterized in that: be provided with seal ring between described valve seat and the valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320101371 CN203162182U (en) | 2013-03-06 | 2013-03-06 | Bispherical elastic two-way hard sealing butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320101371 CN203162182U (en) | 2013-03-06 | 2013-03-06 | Bispherical elastic two-way hard sealing butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203162182U true CN203162182U (en) | 2013-08-28 |
Family
ID=49023367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320101371 Expired - Fee Related CN203162182U (en) | 2013-03-06 | 2013-03-06 | Bispherical elastic two-way hard sealing butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203162182U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104443263A (en) * | 2014-12-02 | 2015-03-25 | 常熟市华阳机械制造厂 | High temperature resistant marine wheel carrier |
-
2013
- 2013-03-06 CN CN 201320101371 patent/CN203162182U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104443263A (en) * | 2014-12-02 | 2015-03-25 | 常熟市华阳机械制造厂 | High temperature resistant marine wheel carrier |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203162182U (en) | Bispherical elastic two-way hard sealing butterfly valve | |
| CN203500514U (en) | Eccentric butterfly valve with two inclined planes | |
| CN203560467U (en) | Triple-eccentric metal hard-sealing butterfly valve | |
| CN203532773U (en) | Double-flange high-performance butterfly valve | |
| CN201902572U (en) | Tri-eccentric bidirectional metal hard sealing butterfly valve | |
| CN210920189U (en) | Hemisphere metal seal fixed ball valve | |
| CN208546553U (en) | A kind of electronic ball valve of fast opening and closing high temperature and pressure | |
| CN107917205A (en) | A kind of soft seal three-eccentric-butterfly-valve | |
| CN204852428U (en) | Titanium material ball valve sealed firmly | |
| CN208734921U (en) | A kind of ball valve preventing sealing High Pressure Difference and high leakage | |
| CN204828735U (en) | Promotion formula floodgate plug valve sealed firmly | |
| CN201615230U (en) | All-welded elastic metal seal butterfly valve | |
| CN103322212B (en) | Floating type valve seat thermal butterfly valve | |
| CN208831790U (en) | A kind of double ball-valves of double block | |
| CN202266686U (en) | Novel rolling steel ring type seal face of butterfly valve | |
| CN202032103U (en) | Novel butterfly valve | |
| CN202646855U (en) | Novel high-pressure large-diameter all-welded ball valve | |
| CN203115129U (en) | Triple eccentric metallic seal butterfly valve | |
| CN203098893U (en) | Metallic spherical seal connecting rod butterfly valve | |
| CN205446795U (en) | Ball valve structure that metal is sealed firmly | |
| CN202065482U (en) | Two-way high-pressure three-eccentric integral type metallic hard seal butterfly valve | |
| CN205047875U (en) | Spherical elastic memory disk seat sealed firmly | |
| CN201909060U (en) | High-temperature metal sealing oxygen ball valve | |
| CN201902596U (en) | Hard sealed ball valve with good sealing performance | |
| CN110686092A (en) | Hemisphere metal seal fixed ball valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130828 Termination date: 20160306 |