CN205639652U - Self -align low temperature butterfly valve of disk seat - Google Patents
Self -align low temperature butterfly valve of disk seat Download PDFInfo
- Publication number
- CN205639652U CN205639652U CN201620290197.1U CN201620290197U CN205639652U CN 205639652 U CN205639652 U CN 205639652U CN 201620290197 U CN201620290197 U CN 201620290197U CN 205639652 U CN205639652 U CN 205639652U
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- China
- Prior art keywords
- valve
- valve seat
- pressing plate
- valve body
- seal receptacle
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- Expired - Fee Related
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Abstract
The utility model discloses a self -align low temperature butterfly valve of disk seat, including valve body, valve shaft, disk seat and valve plate, valve shaft one end is connected with the valve plate after stretching into the valve body, the disk seat includes the seal receptacle and sets up the compensation pad subassembly on the seal receptacle outer lane, the inner an organic whole of seal receptacle is provided with elastic sealing bar, elastic sealing bar is S type structure, elastic sealing bar inner with the surface sealing connection of valve plate, disk seat one end is provided with first clamp plate and second clamp plate, the second clamp plate is connected with the internal face of valve body, is provided with set screw on the second clamp plate, this set screw's head with first clamp plate is connected, and the second clamp plate makes first clamp plate compress tightly the disk seat through the set screw that screws. Above -mentioned technical scheme, structural design is reasonable, simple structure, easy, good, the long service life of valve seat seal nature of maintenance.
Description
Technical field
This utility model relates to butterfly valve technical field, is specifically related to a kind of valve seat self-align low temperature butterfly valve.
Background technology
The butterfly valve of domestic design manufacture at present is generally room temperature and high temperature butterfly valve, owing to the material of the sealing ring of these two kinds of valves mostly is 316+ graphite, PTFE, fluorubber etc., under cryogenic, material shrinkage, the sealing structure of the above material is generally not capable of meeting ultralow temperature requirement, the sealing property making butterfly valve does not reaches the requirement used under cryogenic conditions, thus causes the problem such as on-the-spot replacing valve or on-line maintenance difficulty occur.
Summary of the invention
The deficiency existed for prior art, the purpose of this utility model is to provide a kind of reasonable in design, simple in construction, maintenance is easy, seat leakage good, the valve seat of length in service life self-align low temperature butterfly valve.
For achieving the above object, this utility model provides following technical scheme: a kind of valve seat self-align low temperature butterfly valve, including valve body, valve shaft, valve seat and valve plate, described valve shaft one end is connected with valve plate after stretching into valve body, described valve seat includes seal receptacle and the compensation pad assembly being arranged on seal receptacle outer ring, described seal receptacle the inner is wholely set spring seal strip, the S-type structure of described elastic sealing strip, and the outer surface of the inner and described valve plate of elastic sealing strip is tightly connected；Described valve seat one end is provided with the first pressing plate and the second pressing plate, described second pressing plate is connected with the internal face of valve body, being provided with location screw on second pressing plate, the head of this location screw is connected with described first pressing plate, and the second pressing plate makes the first pressing plate compress valve seat by screwing location screw.
By using technique scheme, location, valve seat outer ring uses and compensates pad assembly, and this structure not only has elastic compensating, but also can make up the play that valve seat is longitudinal when valve seat Self-center-positioning, thus forms effective sealing and momentum compensation；Valve seat uses the design of S type structure so that it is have good elasticity；When valve closing, the elastic deformation of valve seat makes valve be easier to seal；Reasonable in design, simple in construction, maintenance is easy, seat leakage good, service life is long.
This utility model is further arranged to: described valve interior wall has been wholely set valve seat locating convex block at quasi-valve plate position, described valve seat locating convex block is near the stepped structure of end face of the first pressing plate end, and valve seat locating convex block is near forming a compensation pad assembly mounting groove and a seal receptacle mounting groove between the first pressing plate end and the first pressing plate, described compensation pad assembly mounting groove is positioned at seal receptacle mounting groove, and compensation pad assembly mounting groove and seal receptacle mounting groove interconnect.By this setting, structure arranges more reasonable, and valve seat is easier for installation.
This utility model is further arranged to: described valve body is provided with a maintenance window near valve seat installation site, a valve gap it is provided with at described maintenance window, valve gap the inner is provided with gasket seal, being equipped with multiple connecting bolt on described valve gap, valve gap constitutes sealing by connecting bolt with valve body locking.By this setting, structure arranges more reasonable, when valve generation internal leakage, can carry out on-line maintenance by opening maintenance window, overcomes the problem such as on-the-spot replacing valve or on-line maintenance difficulty.
This utility model is further arranged to: described valve shaft deviates from valve body end and is socketed with insulation adapter, is provided with filler and gland in described insulation adapter, and filler is compressed by described gland.By this setting, insulation adapter arranges rationally, good heat insulating.
This utility model is further arranged to: described insulation adapter lower end is connected by screw or bolt with valve body.By this setting, insulation adapter is easy to connect with valve body, fixing reliable.
The utility model has the advantages that: compared with prior art, it is more reasonable that this utility model structure is arranged, location, valve seat outer ring uses and compensates pad assembly, this structure not only has elastic compensating, but also the play that valve seat is longitudinal can be made up when valve seat Self-center-positioning, thus form effective sealing and momentum compensation；Valve seat uses the design of S type structure so that it is have good elasticity；When valve closing, the elastic deformation of valve seat makes valve be easier to seal；Reasonable in design, simple in construction, maintenance is easy, seat leakage good, service life is long, when valve generation internal leakage, can carry out on-line maintenance by opening maintenance window, overcomes and on-the-spot changes the problem such as valve or on-line maintenance difficulty.
Below in conjunction with Figure of description and specific embodiment, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model embodiment；
Fig. 2 is the enlarged diagram in I portion in Fig. 1.
Detailed description of the invention
See Fig. 1 and Fig. 2, a kind of valve seat self-align low temperature butterfly valve disclosed in this utility model, including valve body 1, valve shaft 2, valve seat 3 and valve plate 4, described valve shaft 2 one end is connected with valve plate 4 after stretching into valve body 1, described valve seat 3 includes seal receptacle 31 and the compensation pad assembly 32 being arranged on seal receptacle 31 outer ring, described seal receptacle 31 the inner is wholely set spring seal strip 311, the described S-type structure of elastic sealing strip 311, and the outer surface of the inner and described valve plate 4 of elastic sealing strip 311 is tightly connected；Described valve seat 3 one end is provided with the first pressing plate 5 and the second pressing plate 6, described second pressing plate 6 is connected with the internal face of valve body 1, location screw 7 it is provided with on second pressing plate 6, the head of this location screw 7 is connected with described first pressing plate 5, and the second pressing plate 6 makes the first pressing plate 5 compress valve seat 3 by screwing location screw 7.
As preferably, the inner chamber internal face of described valve body 1 being provided with the second pressing plate mounting groove 11, described second pressing plate 6 is connected in the second pressing plate mounting groove 11；Described compensation pad assembly 32 uses polytetrafluoroethylglass glass fiber (RPTFE) bar and wound form eyelet to make.This structure not only has elastic compensating, but also can make up the longitudinal play of valve seat when valve seat Self-center-positioning thus the effective sealing of formation and momentum compensation.
For making this utility model structure more reasonable, as preferably, it has been wholely set valve seat locating convex block 12 at valve body 1 internal face alignment valve plate 4 position described in the present embodiment, described valve seat locating convex block 12 is near the stepped structure of end face of the first pressing plate 5 end, and valve seat locating convex block 12 is near forming a compensation pad assembly mounting groove 13 and a seal receptacle mounting groove 14 between the first pressing plate 5 end and the first pressing plate 5, described compensation pad assembly mounting groove 13 is positioned at seal receptacle mounting groove 14, and compensation pad assembly mounting groove 13 and seal receptacle mounting groove 14 interconnect.
Described valve body 1 is provided with a maintenance window 15 near valve seat installation site, a valve gap 8 it is provided with at described maintenance window 15, valve gap 8 the inner is provided with gasket seal 9, and described valve gap 8 is equipped with multiple connecting bolt, and valve gap 8 constitutes sealing by connecting bolt with valve body 1 locking.
Described valve shaft 2 deviates from valve body 1 end and is socketed with insulation adapter 10, is provided with filler 16 and gland 17 in described insulation adapter 10, and filler 16 is compressed by described gland 17.
Described insulation adapter 10 lower end is connected by screw or bolt with valve body 1.
During actual application, location, valve seat outer ring uses and compensates pad assembly, and this structure not only has elastic compensating, but also can make up the play that valve seat is longitudinal when valve seat Self-center-positioning, thus forms effective sealing and momentum compensation；Valve seat uses the design of S type structure so that it is have good elasticity；When valve closing, the elastic deformation of valve seat makes valve be easier to seal；Reasonable in design, simple in construction, maintenance is easy, seat leakage good, service life is long, when valve generation internal leakage, can carry out on-line maintenance by opening maintenance window, overcomes and on-the-spot changes the problem such as valve or on-line maintenance difficulty.
This utility model is the conveying of liquids and gases be applicable to various low temperature type industrial pipelines, particularly at the liquids and gases medium of-196 DEG C～0 DEG C.
Above-described embodiment is to specific descriptions of the present utility model; it is served only for this utility model is further described; it is not intended that the restriction to this utility model protection domain, this utility model is made some nonessential improvement according to the content of above-mentioned utility model and within adjustment each falls within protection domain of the present utility model by the technician of this area.
Claims (5)
1. a valve seat self-align low temperature butterfly valve, including valve body (1), valve shaft (2), valve seat (3) and valve plate (4), described valve shaft (2) one end is stretched into valve body (1) and is connected with valve plate (4) afterwards, described valve seat (3) includes seal receptacle (31) and the compensation pad assembly (32) being arranged on seal receptacle (31) outer ring, described seal receptacle (31) the inner is wholely set spring seal strip (311), described elastic sealing strip (311) S-type structure, the outer surface of the inner and described valve plate (4) of elastic sealing strip (311) is tightly connected；Described valve seat (3) one end is provided with the first pressing plate (5) and the second pressing plate (6), described second pressing plate (6) is connected with the internal face of valve body (1), location screw (7) it is provided with on second pressing plate (6), the head of this location screw (7) is connected with described first pressing plate (5), and the second pressing plate (6) makes the first pressing plate (5) compress valve seat (3) by screwing location screw (7).
A kind of valve seat self-align low temperature butterfly valve the most according to claim 1, it is characterized in that: described valve body (1) internal face alignment has been wholely set valve seat locating convex block (12) at valve plate (4) position, the stepped structure of end face that described valve seat locating convex block (12) is held near the first pressing plate (5), and valve seat locating convex block (12) forms compensation pad assembly mounting groove (13) and a seal receptacle mounting groove (14) near between the first pressing plate (5) end and the first pressing plate (5), described compensation pad assembly mounting groove (13) is positioned at seal receptacle mounting groove (14), and compensation pad assembly mounting groove (13) and seal receptacle mounting groove (14) interconnect.
A kind of valve seat self-align low temperature butterfly valve the most according to claim 1 and 2, it is characterized in that: described valve body (1) is provided with a maintenance window (15) near valve seat installation site, described maintenance window (15) place is provided with a valve gap (8), valve gap (8) the inner is provided with gasket seal (9), being equipped with multiple connecting bolt on described valve gap (8), valve gap (8) constitutes sealing by connecting bolt with valve body (1) locking.
A kind of valve seat self-align low temperature butterfly valve the most according to claim 3, it is characterized in that: described valve shaft (2) deviates from valve body (1) end and is socketed with insulation adapter (10), being provided with filler (16) and gland (17) in described insulation adapter (10), filler (16) is compressed by described gland (17).
A kind of valve seat self-align low temperature butterfly valve the most according to claim 4, it is characterised in that: described insulation adapter (10) lower end is connected by screw or bolt with valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620290197.1U CN205639652U (en) | 2016-04-07 | 2016-04-07 | Self -align low temperature butterfly valve of disk seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620290197.1U CN205639652U (en) | 2016-04-07 | 2016-04-07 | Self -align low temperature butterfly valve of disk seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205639652U true CN205639652U (en) | 2016-10-12 |
Family
ID=57067686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620290197.1U Expired - Fee Related CN205639652U (en) | 2016-04-07 | 2016-04-07 | Self -align low temperature butterfly valve of disk seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205639652U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107289143A (en) * | 2017-08-20 | 2017-10-24 | 浙江贝尔控制阀门有限公司 | A kind of heavy-caliber high-temperature high pressure all-metal sealing butterfly valve |
| CN113653814A (en) * | 2021-09-16 | 2021-11-16 | 浙江贝尔控制阀门有限公司 | On-line maintenance separating seat three-eccentric butterfly valve |
| CN113653813A (en) * | 2021-09-16 | 2021-11-16 | 浙江贝尔控制阀门有限公司 | Maintenance mechanism of three eccentric butterfly valve |
-
2016
- 2016-04-07 CN CN201620290197.1U patent/CN205639652U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107289143A (en) * | 2017-08-20 | 2017-10-24 | 浙江贝尔控制阀门有限公司 | A kind of heavy-caliber high-temperature high pressure all-metal sealing butterfly valve |
| CN113653814A (en) * | 2021-09-16 | 2021-11-16 | 浙江贝尔控制阀门有限公司 | On-line maintenance separating seat three-eccentric butterfly valve |
| CN113653813A (en) * | 2021-09-16 | 2021-11-16 | 浙江贝尔控制阀门有限公司 | Maintenance mechanism of three eccentric butterfly valve |
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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 |
Granted publication date: 20161012 Termination date: 20210407 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |