CN204201114U - A kind of multi-layer sealing ring butterfly valve - Google Patents
A kind of multi-layer sealing ring butterfly valve Download PDFInfo
- Publication number
- CN204201114U CN204201114U CN201420647077.3U CN201420647077U CN204201114U CN 204201114 U CN204201114 U CN 204201114U CN 201420647077 U CN201420647077 U CN 201420647077U CN 204201114 U CN204201114 U CN 204201114U
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- CN
- China
- Prior art keywords
- valve
- seal ring
- ring assembly
- active base
- valve body
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of multi-layer sealing ring butterfly valve, comprise valve body, butterfly plate, valve rod and seal ring assembly, be provided with fluid passage in valve body, seal ring assembly is arranged on valve interior wall, valve interior wall is provided with sealing seat, and seal ring assembly is embedded at the end face of sealing seat towards butterfly plate; Further, sealing seat comprises fixed base and active base, fixed base is fixedly connected with valve interior wall, fixed base is provided with two stage steps face towards the end face of active base, the seal groove that can be embedded for seal ring assembly is formed between first order step surface and active base sidewall, active base is arranged on the step surface of the second level and by screw lock, the utility model solves multi-layer sealing ring in prior art and is easily subject to directly washing away of medium fluid and causes the graphite layer in multi-layer sealing ring interlayer to come off and then affect the problem of valve seal effect.
Description
Technical field
The utility model belongs to valve technology field, especially a kind of multi-layer sealing ring butterfly valve.
Background technique
Butterfly valve of the prior art as shown in Figure 1, generally include valve body, butterfly plate is provided with in valve body, butterfly plate is provided with multi-layer sealing ring, this multi-layer sealing ring comprises stainless steel interlayer, and being arranged in the graphite-filled thing of interlayer, butterfly plate realizes being tightly connected by seal ring assembly and multi-layer sealing ring and valve body.When butterfly valve is arranged on pipeline, when ducted medium fluid is through butterfly valve, MEDIA FLOW knows from experience directly impact on butterfly plate, and be directly installed on butterfly plate due to seal ring assembly, therefore directly washing away of this medium fluid easily causes the graphite layer in multi-layer sealing ring interlayer to come off, and affects the sealing effect of valve; In addition, when valve freezes to solidify in order to avoid butterfly plate and valve body and needs to carry out anti-freezing and heat-insulating, this valve needs to obtain large-area steam insulation, and cost is very high; And when after valve closing, after butterfly plate and valve body freeze, can only indirectly thaw to seal ring assembly, thawing time is long, can affect the unlatching of valve.
Model utility content
In order to overcome the deficiencies in the prior art, the utility model provides a kind of multi-layer sealing ring butterfly valve, and this butterfly valve solves multi-layer sealing ring in prior art and is easily subject to directly washing away of medium fluid and causes the graphite layer in multi-layer sealing ring interlayer to come off and then affect the problem of valve seal effect.
To achieve these goals, the technical solution adopted in the utility model is: a kind of multi-layer sealing ring butterfly valve, comprise valve body, butterfly plate, valve rod and seal ring assembly, fluid passage is provided with in valve body, it is characterized in that: described seal ring assembly is arranged on valve interior wall, valve interior wall is provided with sealing seat, and seal ring assembly is embedded at the end face of sealing seat towards butterfly plate.
In said structure; the seal ring assembly of this valve and multi-layer sealing ring are arranged on valve interior wall; avoid and wash away with the front of medium fluid; graphite layer in seal ring assembly then obtains good protection and is not easily washed away by medium fluid and come off; ensure that the reliable sealing of valve, extend the working life of seal ring assembly.
As further setting of the present utility model, described sealing seat comprises fixed base and active base, fixed base is fixedly connected with valve interior wall, fixed base is provided with two stage steps face towards the end face of active base, form the seal groove that can be embedded for seal ring assembly between described first order step surface and active base sidewall, described active base to be arranged on the step surface of the second level and to pass through screw lock.
In said structure, seal ring assembly is embedded in the seal groove on the first order step surface between fixed base and active base, and by screw, active base is locked on fixed base, active base and fixed base are closely cooperated by tightening screw and makes active base have locking effect to seal ring assembly, and for face contacts between this active base with seal ring assembly, locking effect is good.
As further setting of the present utility model, described seal ring assembly comprises stainless steel interlayer and is arranged in the graphite layer of interlayer.
In said structure, multi-layer sealing ring has good sealing effect, and stainless steel interlayer can protect graphite layer wherein not cracked by excessive compression.
As further setting of the present utility model, one end that described sealing seat is connected with valve body offers annular steam groove, and valve body is provided with the steam inlet passage corresponding with annular steam groove and steam outlet passage.
In said structure, sealing seat is offered annular steam groove, the steam inlet passage of valve body and steam outlet passage are connected to steam tube, steam enters in annular steam groove and directly heats to sealing seat from steam tube, melt frozen liquid, accelerate thawing of seal ring assembly, after ensureing valve closing, butterfly plate and valve body do not solidify because freezing, and are convenient to the quick unlatching of valve body.
As further setting of the present utility model, the mounting point of described annular steam groove is corresponding with seal ring assembly to be arranged, and the Central Symmetry face of described annular steam groove overlaps with the median plane of seal ring assembly.
In said structure, annular steam groove aligns with the mounting point of seal ring assembly, can accelerate to thaw, the quick unlatching of smooth valve.
Adopt such scheme, the utility model has good sealability, and multi-layer sealing ring is effectively protected, long service life; And sealing seat is provided with annular steam groove, steam is directly heated to sealing seat, accelerates thawing of seal ring assembly, is convenient to the quick unlatching of valve.
Below in conjunction with accompanying drawing, the utility model is further described.
Accompanying drawing explanation
Accompanying drawing 1 is the utility model prior art structural representation;
Accompanying drawing 2 is the utility model prior art structural front view;
Accompanying drawing 3 is the enlarged view of the utility model specific embodiment Local C;
Accompanying drawing 4 is the structural representation of the utility model specific embodiment active base.
Valve body 1, butterfly plate 2, valve rod 3, seal ring assembly 4, sealing seat 5, fixed base 51, first order step surface 511, second level step surface 512, screw 513, active base 52, steam tube 6, annular steam groove 7, steam inlet passage a, steam outlet passage b.
Embodiment
Specific embodiment of the utility model is multi-layer sealing ring butterfly valve as in Figure 2-4, comprise valve body 1, butterfly plate 2, valve rod and seal ring assembly 4, fluid passage is provided with in valve body 1, seal ring assembly 4 is arranged on valve body 1 inwall, valve body 1 inwall is provided with sealing seat 5, and seal ring assembly 4 is embedded at the end face of sealing seat 5 towards butterfly plate 2.The seal ring assembly 4 of this valve is arranged on valve body 1 inwall; avoid and wash away with the front of medium fluid; graphite layer in seal ring assembly 4 then obtains good protection and is not easily washed away by medium fluid and come off, and ensure that the reliable sealing of valve, extends the working life of seal ring assembly 4.
Above-mentioned sealing seat 5 comprises fixed base 51 and active base 52, fixed base 51 is fixedly connected with valve body 1 inwall, fixed base 51 is provided with two stage steps face towards the end face of active base 52, form the seal groove that can be embedded for seal ring assembly 4 between first order step surface 511 and active base 52 sidewall, active base 52 to be arranged on second level step surface 512 and to be locked by screw 513.Seal ring assembly 4 is embedded in the seal groove on the first order step surface 511 between fixed base 51 and active base 52, and by screw 513, active base 52 is locked on fixed base 51, active base 52 and fixed base 51 is made to closely cooperate and make active base 52 pairs of seal ring assemblies 4 have locking effect by tightening screw 513, and this active base 52 with between seal ring assembly for face contacts, locking effect is good.
Above-mentioned seal ring assembly 4 comprises stainless steel interlayer and is arranged in the graphite layer of interlayer.Multi-layer sealing ring has good sealing effect, and stainless steel interlayer can protect graphite layer wherein not cracked by excessive compression.
One end that above-mentioned sealing seat 5 is connected with valve body 1 offers annular steam groove 7, and valve body 1 is provided with the steam inlet passage a and steam outlet passage b corresponding with annular steam groove.Sealing seat 5 is offered annular steam groove 7, the steam inlet passage a and steam outlet passage b of valve body 1 is connected to steam tube 6, steam enters in annular steam groove 7 and directly heats to sealing seat 5 from steam tube 6, melt frozen liquid, accelerate thawing of seal ring assembly 4, after ensureing valve closing, butterfly plate 2 and valve body 1 do not solidify because freezing, and are convenient to the quick unlatching of valve body 1.
The mounting point of above-mentioned annular steam groove 7 is corresponding with seal ring assembly 4 to be arranged, and the Central Symmetry face of annular steam groove 7 overlaps with the median plane of seal ring assembly.Annular steam groove 7 aligns with the mounting point of seal ring assembly, can accelerate to thaw, the quick unlatching of smooth valve.
The utility model has good sealability, and multi-layer sealing ring 4 is effectively protected, long service life; And sealing seat 5 is provided with annular steam groove, steam is directly heated to sealing seat 5, accelerates thawing of seal ring assembly, is convenient to the quick unlatching of valve.
Claims (5)
1. a multi-layer sealing ring butterfly valve, comprise valve body, butterfly plate, valve rod and seal ring assembly, in valve body, be provided with fluid passage, it is characterized in that: described seal ring assembly is arranged on valve interior wall, valve interior wall is provided with sealing seat, and seal ring assembly is embedded at the end face of sealing seat towards butterfly plate.
2. multi-layer sealing ring butterfly valve according to claim 1, it is characterized in that: described sealing seat comprises fixed base and active base, fixed base is fixedly connected with valve interior wall, fixed base is provided with two stage steps face towards the end face of active base, form the seal groove that can be embedded for seal ring assembly between described first order step surface and active base sidewall, described active base to be arranged on the step surface of the second level and to pass through screw lock.
3. multi-layer sealing ring butterfly valve according to claim 1 and 2, is characterized in that: described seal ring assembly comprises stainless steel interlayer and is arranged in the graphite layer of interlayer.
4. the multi-layer sealing ring butterfly valve according to claim 1 or 2 or 3, is characterized in that: one end that described sealing seat is connected with valve body offers annular steam groove, valve body is provided with the steam inlet passage corresponding with annular steam groove and steam outlet passage.
5. multi-layer sealing ring butterfly valve according to claim 4, is characterized in that: the mounting point of described annular steam groove is corresponding with seal ring assembly to be arranged, and the Central Symmetry face of described annular steam groove overlaps with the median plane of seal ring assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420647077.3U CN204201114U (en) | 2014-10-31 | 2014-10-31 | A kind of multi-layer sealing ring butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420647077.3U CN204201114U (en) | 2014-10-31 | 2014-10-31 | A kind of multi-layer sealing ring butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204201114U true CN204201114U (en) | 2015-03-11 |
Family
ID=52659078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420647077.3U Expired - Fee Related CN204201114U (en) | 2014-10-31 | 2014-10-31 | A kind of multi-layer sealing ring butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204201114U (en) |
-
2014
- 2014-10-31 CN CN201420647077.3U patent/CN204201114U/en not_active Expired - Fee Related
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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: 20150311 Termination date: 20161031 |