CN2389262Y - Three-eccentric hard-sealed butterfly valve - Google Patents
Three-eccentric hard-sealed butterfly valve Download PDFInfo
- Publication number
- CN2389262Y CN2389262Y CN 99243242 CN99243242U CN2389262Y CN 2389262 Y CN2389262 Y CN 2389262Y CN 99243242 CN99243242 CN 99243242 CN 99243242 U CN99243242 U CN 99243242U CN 2389262 Y CN2389262 Y CN 2389262Y
- Authority
- CN
- China
- Prior art keywords
- valve
- eccentric
- plate
- valve plate
- shaft
- 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 - Lifetime
Links
Images
Landscapes
- Lift Valve (AREA)
Abstract
The utility model relates to a three-eccentric center hard-sealed butterfly valve which comprises a valve body 1 and a valve shaft 16, wherein, a butterfly plate composed of a valve plate 4, a valve plate body 7 and a valve plate cover 8 is installed in the valve body 1 and is fixed on the valve shaft 16, a packing box is installed at the upper part of the valve shaft 16, and a driving device support frame 17 is fixed above the packing box. The utility model is characterized in that the main parts have the three-eccentric center structure that the planes of the valve shaft 16 and the valve plate 4 are relatively eccentric; the central lines of the valve shaft 16 and the valve body 1 are relatively eccentric; the shaft line of a conical valve seat 9 and the central line of the valve plate 4 are relatively eccentric, and valves with different specifications have different parameters of deflection taper angles. The valve plate 4 is formed by the stacking of a plurality of lays of thin metal plates, and flexible graphite paper is clamped among the plates. The utility model has the advantages of simple structure, small size, long service life and low cost.
Description
The utility model relates to F16K 11/052 class, a kind of three eccentric hard seal butterfly valves.
Three eccentric hard seal butterfly valves are a kind of novel butterfly valves, and keying rapidly, rotary valve plate can reach the keying purpose for 90 °, is optimal open-shut device in the pipeline, are the developing direction of open-shut device in the big pipeline.But these class butterfly valves few in number also come with some shortcomings: single, the insufficient strength of butterfly plate structure that has; Make of macromolecular material because of the valve seat that has, heatproof, not withstand voltage, not wear-resisting is not difficult to enlarge application area.
The purpose of this utility model provides a kind of simple in structure, applied widely, the life-span is long, cost is low three eccentric hard seal butterfly valves.
This three eccentric hard seal butterfly valves, comprise valve body 1, valve shaft 16, valve seat 9 and butterfly plate, be contained in the valve body 1 by valve plate 4, valve plate body 7, valve plate lid 8 butterfly plates of forming, be fixed on the valve shaft 16, Stuffing box is installed in the top of valve shaft 16, the Stuffing box upper fixed has transmission device support 17, and it is characterized in that the three eccentric structures pass of critical piece is: a. valve shaft 16 is relative with the plane of valve plate 4 eccentric; B. valve shaft 16 is relative eccentric with the center line of valve body 1; C. the axis of conical valve seat 9 is relative eccentric with the center line of valve plate 4, and the numerical value of three off-centre changes according to different size.
The design's butterfly valve structure is simple, rationally, tapered sealing surface guarantees that pressure minimum angle between valve plate and the valve seat greater than friction angle, do not have friction relatively in 360 ° of scopes, thereby guarantees that its life-span is more than the similar twice.The cam action that rotary valve plate produced, but self-locking self-tightening again can gradual self compensations, remain zero sealing state and not stuck, not clamping, flexible operation.Designed unique self compensation mechanism in Stuffing box, reaching double compensator does not have leakage, freedom from repairs.The design's valve body, valve plate are metallic material, adopt high strength alloy mostly, thereby have withstand voltage, heatproof, corrosion-resistant, ageing-resistant function, scope-178-700 ℃ of its Applicable temperature.Its volume is little, in light weight, applied widely, particularly be used on the pipeline of Korrosionsmedium, and price is low, than the butterfly valve low about 30% with bore.
Fig. 1 is three eccentric hard seal butterfly valve principle schematic;
Fig. 2 is three eccentric hard seal butterfly valve plan views;
Fig. 3 is three eccentric hard seal butterfly valve side views;
Fig. 4 is the sectional view of Fig. 3;
Embodiment:
This three eccentric hard seal butterfly valves, comprise valve body 1, valve shaft 16, valve seat 9 and butterfly plate, be contained in the valve body 1 by valve plate 4, valve plate body 7, valve plate lid 8 butterfly plates of forming, be fixed on the valve shaft 16, see Fig. 2, it is characterized in that the three eccentric structures pass of critical piece is: a. valve shaft 16 is relative with the plane of valve plate 4 eccentric; B. valve shaft 16 is relative eccentric with the center line of valve body 1; C. the axis of conical valve seat 9 is relative eccentric with the center line of valve plate 4, and the numerical value of three off-centre changes owing to specification is different.Another outstanding feature is that the section of valve plate 4 and valve seat 9 all is inclined to one side taper, sees Fig. 3, Fig. 4.With the vertical section of valve shaft 16 on, the diameter end points of valve plate 4, valve seat 9, the inclined to one side angle of taper minimum of a point, and the angle maximum of another relative 180 ° point, inclined to one side cone angle changes 180 ° of backtrackings to the inclined to one side cone angle of minimum along circumference from maximum; Make the valve of different size, the changeable parameters of its inclined to one side cone angle.Valve plate 4 is to be built up by the multi-layer thin sheet metal, the flexible stone mill paper of folder between plate and the plate.Splitting snap ring 11 is to be made of two semicircle metalworks, is fixed on the valve shaft 16, plays position-limiting action.
For example make one three eccentric hard seal butterfly valve, bore DN300mm, pressure P N1.6MPa by design principle, sees Fig. 1, three eccentric values respectively of structural relation: a. valve shaft 16 and valve plate 4 center line eccentric distance 29mm; B. the center line eccentric distance 6mm of valve shaft 16 and valve body 1, the section of c. valve plate 4, valve seat 9 all is inclined to one side taper, the center line eccentric distance 2mm of valve seat 9 conical seat axis and valve plate 4.Dotted line is depicted as the inclined to one side cone angle of valve plate 4 and valve seat 9 among Fig. 3, sees the A-A section of Fig. 3 from Fig. 4, with the horizontal section of valve shaft 16 on, an end of diameter is 0 °, another point is 20 °.
During assembling, earlier valve plate 4 and valve plate body 7, valve plate lid 8 are formed butterfly plate by bolt 6; Again butterfly plate and valve shaft 16 are installed on the valve seat 9, form one by axle card 20, taper pin 19, bolt 21.According to unlike material, valve seat 9 can be welded on the valve body 1 or with valve body 1 be an integral body.The Stuffing box that is made of filler 12, gland 13, Gland 14 is installed in the top of valve shaft 16, and the Stuffing box upper fixed has transmission device support 17.Key 18 is locating pieces that transmission device is installed, and Upper shaft sleeve 10 and Lower shaft sleeve 2 play the bearing effect.
Manual, electronic, pneumatic, the mode of surging that transmission device can be selected for use.When valve is connected with pipeline, can adopt wafer type or flange-type.Little, the lightweight wafer type of general first-selected volume.
Claims (4)
1, a kind of three eccentric hard seal butterfly valves, comprise valve body (1), valve shaft (16), cover the butterfly plate of (8) forming and be contained in the valve body (1) by valve plate (4), valve plate body (7), valve plate, be fixed on the valve shaft (16), Stuffing box is installed in the top of valve shaft (16), the Stuffing box upper fixed has transmission device support (17), and it is characterized in that the three eccentric structures pass of critical piece is: a. valve shaft (16) is relative with the plane of valve plate (4) eccentric; B. valve shaft (16) is relative eccentric with the center line of valve body (1); C. the axis of conical valve seat (9) is relative eccentric with the center line of valve plate (4), and the numerical value of three off-centre changes owing to specification is different.
2, according to claim 1 three eccentric hard seal butterfly valves, the section that it is characterized in that valve plate (4) and valve seat (9) all is inclined to one side taper, with the vertical section of valve shaft (16) on, the diameter end points of valve plate (4), valve seat (9), the inclined to one side angle of taper minimum of a point, and the angle maximum of another relative 180 ° point, inclined to one side cone angle changes 180 ° of backtrackings to the inclined to one side cone angle of minimum along circumference from maximum; Make the valve of different size, the changeable parameters of its inclined to one side cone angle.
3, according to claim 1 three eccentric hard seal butterfly valves is characterized in that valve plate (4) is to be built up by the multi-layer thin sheet metal, the flexible stone mill paper of folder between plate and the plate.
4, according to claim 1 three eccentric hard seal butterfly valves, it is characterized in that splitting snap ring (11) is to be made of two semicircle metalworks, is fixed on the valve shaft (16), plays position-limiting action.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99243242 CN2389262Y (en) | 1999-09-17 | 1999-09-17 | Three-eccentric hard-sealed butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99243242 CN2389262Y (en) | 1999-09-17 | 1999-09-17 | Three-eccentric hard-sealed butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2389262Y true CN2389262Y (en) | 2000-07-26 |
Family
ID=34029588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99243242 Expired - Lifetime CN2389262Y (en) | 1999-09-17 | 1999-09-17 | Three-eccentric hard-sealed butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2389262Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534108A (en) * | 2014-12-10 | 2015-04-22 | 浙江华尔士自控仪表阀门有限公司 | Pneumatic flange type triple-biased butterfly valve |
-
1999
- 1999-09-17 CN CN 99243242 patent/CN2389262Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534108A (en) * | 2014-12-10 | 2015-04-22 | 浙江华尔士自控仪表阀门有限公司 | Pneumatic flange type triple-biased butterfly valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2389262Y (en) | Three-eccentric hard-sealed butterfly valve | |
| CN201025308Y (en) | Valve plate positioning butterfly valve | |
| CN2600664Y (en) | Cam-type wearless ball valve | |
| CN101408246B (en) | Seal device for ultra-high pressure container | |
| CN200958614Y (en) | Four-dimensional and eccentric sealed butterfly valve | |
| CN201875158U (en) | Coke oven gas regulating butterfly valve | |
| CN2903595Y (en) | Positive pyramid float valve seat dual direction sealing butterfly valve | |
| CN2201530Y (en) | Hard sealed butterfly bamper with double eccentric metal spherical surface | |
| CN2451831Y (en) | Metal sealing buttetfly valve | |
| CN100443785C (en) | Two-way sealing butterfly valve with conic floating valve seat | |
| CN200958615Y (en) | Four-dimensional and eccentric sealed butterfly valve | |
| CN2076193U (en) | Double-ecentric butterfly valve with metal rigid seal | |
| CN201902573U (en) | Multipurpose eccentric soft-hard seal wafer-type butterfly valve | |
| JPH11270703A (en) | Eccentric type butterfly valve | |
| CN201145045Y (en) | Four-dimensional four-eccentric seal butterfly valve | |
| CN201588968U (en) | All-welded gate type rigid sealed ball valve | |
| CN2424333Y (en) | Three eccentric metal hard sealed butterfly damper | |
| CN2412132Y (en) | Three-dimensional eccentric conical surface hard sealed butterfly bamper | |
| CN214008099U (en) | Supporting device with joint bearing for butterfly valve louver valve | |
| CN219639473U (en) | Butterfly valve with composite valve seat structure | |
| CN212616369U (en) | Eccentric butterfly valve | |
| CN201651350U (en) | Four-dimensional four-eccentric sealing butterfly valve | |
| CN201844035U (en) | Novel bidirectional sealed cast-iron flange butterfly valve with super-large aperture | |
| CN2526618Y (en) | Ball valve with high-performance parameter | |
| CN213064705U (en) | Ball valve connecting support and ball valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |