CN204739229U - Novel butterfly valve structure - Google Patents
Novel butterfly valve structure Download PDFInfo
- Publication number
- CN204739229U CN204739229U CN201520464898.8U CN201520464898U CN204739229U CN 204739229 U CN204739229 U CN 204739229U CN 201520464898 U CN201520464898 U CN 201520464898U CN 204739229 U CN204739229 U CN 204739229U
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- valve
- valve body
- butterfly
- plate
- valve rod
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Abstract
The utility model provides a novel butterfly valve structure, including valve body (1), clamp plate (2) and butterfly plate (3), the upper and lower both ends of butterfly plate (3) respectively with valve body (1) in upper valve rod (6) and lower valve rod (7) be connected, upper valve rod (6) and lower valve rod (7) link to each other with valve body (1) through the axle sleeve, the valve gap and hand wheel fixed connection's upper valve rod (6) between have filler (8) through hold down grid (9) crimping, disk seat (10) that are connected with clamp plate (2) are through soket head cap screw (5) and disk seat clamping ring (13) fixed connection one side in valve body (1), disk seat (10) surface is equipped with sealed fill up (11), be equipped with O type sealing washer (12) between the outer lane of disk seat (10) and disk seat clamping ring (13) edge and valve body (1). The beneficial effect of the utility model: adopt split type disk seat, the convenient change is maintained, and the leakproofness is good, and is wear -resisting corrosion -resistant, long service life.
Description
Technical field
The device of a kind of main cut-out and throttling action on pipeline in pipe technology field involved by the utility model, the particularly novel butterfly valve structure of one.
Background technique
Three eccentric butterfly valve was widely used gradually due to the life-span of its good sealing, extremely low moment of torsion, minimum wearing and tearing, excellent high pressure resistant high temperatures and superelevation.Three eccentric butterfly valve structure (Fig. 1, Fig. 2) domestic at present, the pressing plate 2 in valve body 1 is fixedly connected with by socket head screw 5 with butterfly plate 3, is sealed between pressing plate 2 and butterfly plate 3 by sealing plate 4.Structure is simple, applied widely, but still there is the defect that can not be ignored.Because valve seat and valve body are integral type structure, namely valve seat is directly piled and is welded on valve body, and valve seat cannot be changed, if valve seat damage, just can only whole valve replacement, and maintenance cost is very high.And the fit dimension between valve plate and valve seat cannot adjust, and can only singly join, if there is an accessory size not in place, one can only be reformed, so assembling very difficulty.This has had a strong impact on quality and the cost of production of three eccentric butterfly valve, also result in the distrust of client to three eccentric butterfly valve.Its major influence factors is: the sealing surface of seat in integral type valve seat follows valve body deformation, causes valve seal to leak; Sealing pretension amount regulates difficulty, and valve base sealing cannot be changed after damaging; Torque is large, wearing and tearing are bad fast, easily leaks.
Model utility content
For the defect existed in existing integral type butterfly valve, the utility model provides a kind of novel butterfly valve structure.
To achieve these goals, technical solution adopted in the utility model is:
A kind of novel butterfly valve structure, comprise the pressing plate and butterfly plate that are fixedly connected with by socket head screw in valve body and valve body, sealing plate is provided with between pressing plate and butterfly plate, the top of valve body is connected with upper cover and handwheel, the two ends up and down of butterfly plate are connected with lower valve rod with the upper valve rod in valve body respectively, upper valve rod is connected with valve body by axle sleeve with lower valve rod, filler is crimped with by hold-down grid between valve gap and the upper valve rod be fixedly connected with handwheel, O RunddichtringO is disposed with from top to bottom between valve body and upper valve rod, butterfly spring and and emit, the valve seat be connected with pressing plate is fixedly connected on the side of valve body by socket head screw and valve seat trim ring, valve seat both sides by sealing gasket respectively with valve body and valve seat trim ring compact siro spinning technology, O RunddichtringO is provided with between the edge, outer ring of valve seat and valve seat trim ring and valve body,
Described sealing plate is the knockdown Multi-layer sealing plate of stainless steel and Expanded graphite;
Described sealing gasket is stainless steel or the cemented carbide in valve base surface built-up welding.
The beneficial effects of the utility model: adopt split type valve seat, not only solve the difficult problem that valve seat can not be changed, and facilitate the processing of valve seat, because all-in-one-piece valve seat is to add man-hour not only heavy, and production effect is low, machining accuracy is poor, split rear valve base can in lathe in machining, and precision is high, Assurance of Size, and can also realize exchanging, convenient processing, assembling and maintenance; Valve seat insert adjustable, pays pretension amount by valve base sealing pad thickness tolerance adjustable sealing, solves the machining tolerance exchanging seal ring, thus realizes valve technical matters requirement under unified central planning; When this three eccentric butterfly valve is opened from 0 ° ~ 90 °, butterfly plate sealing surface can depart from sealing surface of seat immediately in the moment of opening, when closing for its 90 ° ~ 0 °, the moment of only closing, its butterfly plate conical sealing face just can contact and compress the sealing of valve seat taper shape, so without any friction between sealing surface on valve seat and butterfly plate, the possibility eliminating wearing and tearing and leak; Employing moment of torsion seals, when the structure of three eccentricity makes butterfly valve close, seal pressure between its sealing pair two sealing surface is produced by the driving moment applied to valve rod, the seal pressure that the factors such as common elastic valve seat elastic material is aging, cold flow, elastic failure that not only eliminate cause reduces and disappears, and can by the change of additional driving moment, realize any adjustment to its seal pressure, thus the sealability of three eccentric butterfly valve is improved, the working life of butterfly valve also improves greatly; Adopt two way sealed, because sealing surface cone angle is less than the angle of friction of sealing material, when butterfly plate closes sealing station, realize self-locking immediately, and certain backpressure impact can be born; Valve is all metal construction, has fire-proof function; Adopt stainless steel or pile-up welding hard alloy to pay as valve seal, such that sealing surface of seat intensity is high, hardness good, wear-resistant, corrosion-resistant, antiscour, sealing can be improved and be easy to install, regulate and change working life; Axle sleeve is equipped with in the upper and lower parts of valve rod, prevents wearing and tearing and adhesion, improves working life.
Accompanying drawing explanation
The structural representation of Fig. 1, existing butterfly valve;
The partial structurtes schematic diagram of Fig. 2, existing butterfly valve;
Fig. 3, structural representation of the present utility model;
The connection diagram of upper valve rod and valve body in Fig. 4, the utility model;
The connection diagram of split type valve seat in Fig. 5, the utility model.
Embodiment
For overcoming the defect existed in existing integral type butterfly valve, design a kind of novel butterfly valve structure (as Fig. 3 ~ Fig. 5), comprise the pressing plate 2 and butterfly plate 3 that are fixedly connected with by socket head screw 5 in valve body 1 and valve body 1, sealing plate 4 is provided with between pressing plate 2 and butterfly plate 3, the top of valve body 1 is connected with upper cover and handwheel, the two ends up and down of butterfly plate 3 are connected with lower valve rod 7 with the upper valve rod 6 in valve body 1 respectively, upper valve rod 6 is connected with valve body 1 by axle sleeve with lower valve rod 7, filler 8 is crimped with by hold-down grid 9 between valve gap and the upper valve rod 6 be fixedly connected with handwheel, O RunddichtringO 12 is disposed with from top to bottom between valve body 1 and upper valve rod 6, butterfly spring 15 and and emit 14, the valve seat 10 be connected with pressing plate 2 is fixedly connected on the side of valve body 1 by socket head screw 5 and valve seat trim ring 13, valve seat 10 both sides by sealing gasket 11 respectively with valve body 1 and valve seat trim ring 13 compact siro spinning technology, O RunddichtringO 12 is provided with between the edge, outer ring of valve seat 10 and valve seat trim ring 13 and valve body 1, described sealing plate 4 is the knockdown Multi-layer sealing plate of stainless steel and Expanded graphite, described sealing gasket 11 is stainless steel or the cemented carbide in valve seat 10 surface overlaying.
In using process, because valve seat 10 is fixed on valve body 1 by socket head screw 5, compress by valve seat trim ring 13, unload lower valve base trim ring 13, with regard to valve with changeable valve seat 10, and change or adjustment O RunddichtringO 12.
The beneficial effects of the utility model: adopt split type valve seat, not only solve the difficult problem that valve seat can not be changed, and facilitate the processing of valve seat, because all-in-one-piece valve seat is to add man-hour not only heavy, and production effect is low, machining accuracy is poor, split rear valve base can in lathe in machining, and precision is high, Assurance of Size, and can also realize exchanging, convenient processing, assembling and maintenance; Valve seat insert adjustable, pays pretension amount by valve base sealing pad thickness tolerance adjustable sealing, solves the machining tolerance exchanging seal ring, thus realizes valve technical matters requirement under unified central planning; When this three eccentric butterfly valve is opened from 0 ° ~ 90 °, butterfly plate sealing surface can depart from sealing surface of seat immediately in the moment of opening, when closing for its 90 ° ~ 0 °, the moment of only closing, its butterfly plate conical sealing face just can contact and compress the sealing of valve seat taper shape, so without any friction between sealing surface on valve seat and butterfly plate, the possibility eliminating wearing and tearing and leak; Employing moment of torsion seals, when the structure of three eccentricity makes butterfly valve close, seal pressure between its sealing pair two sealing surface is produced by the driving moment applied to valve rod, the seal pressure that the factors such as common elastic valve seat elastic material is aging, cold flow, elastic failure that not only eliminate cause reduces and disappears, and can by the change of additional driving moment, realize any adjustment to its seal pressure, thus the sealability of three eccentric butterfly valve is improved, the working life of butterfly valve also improves greatly; Adopt two way sealed, because sealing surface cone angle is less than the angle of friction of sealing material, when butterfly plate closes sealing station, realize self-locking immediately, and certain backpressure impact can be born; Valve is all metal construction, has fire-proof function; Adopt stainless steel or pile-up welding hard alloy to pay as valve seal, such that sealing surface of seat intensity is high, hardness good, wear-resistant, corrosion-resistant, antiscour, sealing can be improved and be easy to install, regulate and change working life; Axle sleeve is equipped with in the upper and lower parts of valve rod, prevents wearing and tearing and adhesion, improves working life.
Those ordinary skill in the art simply replace and change is all within this patent protection domain.
Claims (3)
1. a novel butterfly valve structure, comprise the pressing plate (2) and butterfly plate (3) that are fixedly connected with by socket head screw (5) in valve body (1) and valve body (1), sealing plate (4) is provided with between pressing plate (2) and butterfly plate (3), the top of valve body (1) is connected with upper cover and handwheel, it is characterized in that, the two ends up and down of butterfly plate (3) are connected with lower valve rod (7) with the upper valve rod (6) in valve body (1) respectively, upper valve rod (6) is connected with valve body (1) by axle sleeve with lower valve rod (7), filler (8) is crimped with by hold-down grid (9) between valve gap and the upper valve rod (6) be fixedly connected with handwheel, O RunddichtringO (12) is disposed with from top to bottom between valve body (1) and upper valve rod (6), butterfly spring (15) and and emit (14), the valve seat (10) be connected with pressing plate (2) is fixedly connected on the side of valve body (1) by socket head screw (5) and valve seat trim ring (13), valve seat (10) both sides by sealing gasket (11) respectively with valve body (1) and valve seat trim ring (13) compact siro spinning technology, O RunddichtringO (12) is provided with between the edge, outer ring of valve seat (10) and valve seat trim ring (13) and valve body (1).
2. the novel butterfly valve structure of one according to claim 1, is characterized in that, described sealing plate (4) is stainless steel and the knockdown Multi-layer sealing plate of Expanded graphite.
3. the novel butterfly valve structure of one according to claim 1 and 2, is characterized in that, described sealing gasket (11) is stainless steel or the cemented carbide in valve seat (10) surface overlaying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520464898.8U CN204739229U (en) | 2015-06-29 | 2015-06-29 | Novel butterfly valve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520464898.8U CN204739229U (en) | 2015-06-29 | 2015-06-29 | Novel butterfly valve structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204739229U true CN204739229U (en) | 2015-11-04 |
Family
ID=54420966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520464898.8U Expired - Fee Related CN204739229U (en) | 2015-06-29 | 2015-06-29 | Novel butterfly valve structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204739229U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299285A (en) * | 2015-11-11 | 2016-02-03 | 上海东宝阀门制造有限公司 | Three-eccentric bidirectional all-metal hard-seal butterfly valve |
| CN105465381A (en) * | 2015-12-31 | 2016-04-06 | 宁波丰基特种阀门有限公司 | Butterfly valve |
| CN105952912A (en) * | 2016-07-01 | 2016-09-21 | 天津奥赛阀门有限公司 | Novel butt clamp butterfly valve |
| CN106051179A (en) * | 2016-07-29 | 2016-10-26 | 上海凯工阀门有限公司 | High-performance metal hard sealing butterfly valve |
-
2015
- 2015-06-29 CN CN201520464898.8U patent/CN204739229U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299285A (en) * | 2015-11-11 | 2016-02-03 | 上海东宝阀门制造有限公司 | Three-eccentric bidirectional all-metal hard-seal butterfly valve |
| CN105465381A (en) * | 2015-12-31 | 2016-04-06 | 宁波丰基特种阀门有限公司 | Butterfly valve |
| CN105465381B (en) * | 2015-12-31 | 2018-03-27 | 宁波市天基隆智控技术有限公司 | Butterfly valve |
| CN105952912A (en) * | 2016-07-01 | 2016-09-21 | 天津奥赛阀门有限公司 | Novel butt clamp butterfly valve |
| CN106051179A (en) * | 2016-07-29 | 2016-10-26 | 上海凯工阀门有限公司 | High-performance metal hard sealing 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: 20151104 Termination date: 20190629 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |