CN206845922U - A kind of three dimension eccentric multiple-layer metal hard seal butterfly valve - Google Patents
A kind of three dimension eccentric multiple-layer metal hard seal butterfly valve Download PDFInfo
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- CN206845922U CN206845922U CN201720602108.7U CN201720602108U CN206845922U CN 206845922 U CN206845922 U CN 206845922U CN 201720602108 U CN201720602108 U CN 201720602108U CN 206845922 U CN206845922 U CN 206845922U
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Abstract
It the utility model is related to three dimension eccentric butterfly valve technical field, disclose a kind of three dimension eccentric multiple-layer metal hard seal butterfly valve, including support, valve body, valve seat, valve rod and the butterfly plate being arranged on by valve rod in the runner of valve body, it is characterized in that, a size is biased between the axis of the valve rod and the sealing surface of butterfly plate, one size of the axis of the valve rod and the runner axis bias of valve body, the axis of rotation of the butterfly plate and the runner axis of valve body form an eccentric angle, into a three dimension eccentric structure, the flow diameter direction of the valve body is provided with valve seal ring, the valve seal ring is movable stainless steel forgings, the axial direction of the butterfly plate is provided with butterfly plate sealing ring, the butterfly plate sealing ring is the sealing surface of multi-level soft or hard stacked stainless steel substrates and rubber asbestos plate.The utility model is with the beneficial effect that abrasive effect is small, sealing property is excellent, seal member can be with changing, with auto-lock function.
Description
Technical field
Originally it is that utility model is related to a kind of sealed butterfly valve, more particularly to a kind of three dimension eccentric multiple-layer metal seals butterfly firmly
Valve, belong to valve applications technical field.
Background technology
Three dimension eccentric butterfly valve is the relatively advanced butterfly valve of technology, and the structure valve rod of traditional three dimension eccentric butterfly valve is arranged at valve
Internal side, butterfly plate are installed on the diametric(al) of valve flowing channel by valve rod.In butterfly valve body cylindrical channel, the outside of butterfly plate
Provided with butterfly plate sealing ring, dish type butterfly plate rotates around axis, between the anglec of rotation is 0 ° ~ 90 °, when rotating to 90 °, and valve then board
Full-gear.Existing three dimension eccentric butterfly valve be there are problems that many：Moment of torsion is big when butterfly valve is opened, frictional resistance is big, sealing effect
Fruit is bad, and sealing surface wear is serious, and can not be changed after valve seal surface wear, causes butterfly valve can not normal use.Such as：In
State license notification number CN201306453Y, authorized announcement date September in 2009 9 days, invention and created name is three dimension eccentric butterfly
Valve, including valve body, valve rod, butterfly valve, it is disadvantageous in that, butterfly plate overall structure is too thick, and flow resistance is big, and sealing property is undesirable,
Serious wear, the deficiency that can not be changed after the abrasion of valve seal position.
Utility model content
The utility model is in order to solve above-mentioned weak point, there is provided a kind of abrasive effect is small, sealing property is excellent, sealing
Part can with changing, have auto-lock function three dimension eccentric multiple-layer metal hard seal butterfly valve.
Purpose is appealed to realize, the utility model adopts the following technical scheme that：
A kind of three dimension eccentric multiple-layer metal hard seal butterfly valve, including support, valve body, valve seat, valve rod and pacified by valve rod
Butterfly plate in the runner of valve body, a size is biased between the axis of the valve rod and the sealing surface of butterfly plate, the valve rod
One size of runner axis bias of axis and valve body, the axis of rotation of the butterfly plate and the runner axis of valve body form one partially
Heart angle, into a three dimension eccentric structure, the flow diameter direction of the valve body is provided with valve seal ring, the valve seal ring
For movable stainless steel forgings, the axial direction of the butterfly plate is provided with butterfly plate sealing ring, and the butterfly plate sealing ring is multi-level soft
The sealing surface of hard formation stacked stainless steel substrates and rubber asbestos plate.Valve rod is eccentric with butterfly plate, and the runner of valve rod and valve body is eccentric, butterfly plate
It is eccentric with the runner of valve body, a three dimension eccentric structure is formed, enables butterfly plate and valve body sealing surface instantaneous touch or disengaging, really
Realize the requirement of no abrasion, and formed with the sealing function for the more closing the more tight, valve seals by stainless steel forging, and for can
It is movable, there is anti abrasive feature, and can be with bidirectional bearing, service life length, because valve seals are movable
, therefore when valve seals have breakage either can not improve the whole of butterfly valve in use, can be drawn off repairing or replacing
Body service life, butterfly plate sealing ring make it have metal using soft or hard stacked stainless steel substrates and the sealing surface of rubber asbestos plate
No matter hard sealing and the two-fold advantage of elastic packing, be respectively provided with excellent sealing property under low temperature and worst hot case.
Preferably, the sealing surface of the butterfly plate sealing ring and the sealing surface of valve seal ring are conical ring face, and butterfly plate
The cone angle of sealing ring is less than the angle of friction of valve seal ring.Because the cone angle of butterfly plate sealing ring is less than the friction of valve seal ring
Angle, butterfly plate realize self-locking when closing to sealing station, butterfly plate will not occur and closed the failure of position, while valve is born immediately
Certain buffer brake impact.
Preferably, the upper end that the valve rod coordinates with valve body is provided with Upper shaft sleeve, the Upper shaft sleeve upper end is provided with filler, institute
State filler upper end and be provided with gland, the lower end that the valve rod coordinates with valve body is provided with Lower shaft sleeve, the Upper shaft sleeve and Lower shaft sleeve
For self-lubricating composite shaft sleeve.The upper end of Upper shaft sleeve is provided with filler and gland, the effect of sealing and lubrication can be achieved, Upper shaft sleeve is with
The equal self-lubricating composite shaft sleeve of axle sleeve can realize self-lubricate, improve the service efficiency of valve rod, it is not easy to showing for kelly occur
As.
Preferably, the outside of the butterfly plate sealing ring is provided with sealing ring pressing plate, the sealing ring pressing plate passes through interior hexagonal
Screw is connected with butterfly plate.Sealing ring pressing plate is used to fix butterfly plate sealing ring, and pressing plate is sized to be slightly smaller than butterfly plate sealing ring, passes through
Sealing ring pressing plate is connected by soket head cap screw with butterfly plate so that structure is even closer, attractive in appearance.
Preferably, the bottom of the valve rod is provided with divided ring.Divided ring has certain bearing capacity, also has and fixes
The function of valve rod.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the principle schematic of three dimension eccentric.
In figure：Support 1, gland 2, filler 3, Upper shaft sleeve 4, valve body 5, sealing ring pressing plate 6, butterfly plate 7, valve rod 8, butterfly plate
Sealing ring 9, valve seal ring 10, Lower shaft sleeve 11, divided ring 12, valve seat 13, soket head cap screw 14, transmission device 15, handwheel 16.
Embodiment
It is structural representation of the present utility model as shown in Figure 1, Fig. 2 is the principle schematic of three dimension eccentric, wherein, handwheel
16 are arranged at the surface of transmission device 15, and valve body 5 is connected by support 1 with transmission device 15, and the inner of valve body 5 is provided with valve rod 8,
The upper end of valve rod 8 passes through valve body 5, and is connected with transmission device 15, and the upper end that valve rod 8 coordinates with valve body 5 is provided with Upper shaft sleeve 4,
The upper end of Upper shaft sleeve 4 is provided with filler 3, and the upper end of filler 3 is provided with gland 2, and the lower end that valve rod 8 coordinates with valve body 5 is provided with down
Axle sleeve 11, Upper shaft sleeve 4 and the equal self-lubricating composite shaft sleeve of Lower shaft sleeve 11 can realize self-lubricate, improve the use effect of valve rod
Rate, it is not easy to the phenomenon of kelly occur, the lower end of Lower shaft sleeve 11 is provided with divided ring 12, and the lower end of valve rod 5 passes through divided ring 12, valve
The lower end of bar 5 is provided with valve seat 13, and valve seat 13 is fixed on the lower end of valve body 5 by hexagonal socket nut 14, and butterfly plate 7 is pacified by valve rod 8
In the runner of valve body 5, a size, axis and the valve body 5 of valve rod 8 are biased between the axis of valve rod 8 and the sealing surface of butterfly plate 7
One size of runner axis bias, the runner axis of the axis of rotation of butterfly plate 7 and valve body 5 forms an eccentric angle, into one
Three dimension eccentric structure, the flow diameter direction of valve body 5 are provided with valve seal ring 10, and valve seal ring 10 is movable stainless steel
Forging, the axial direction of butterfly plate 7 are provided with butterfly plate sealing ring 9, and butterfly plate sealing ring 9 is multi-level soft or hard stacked stainless steel substrates and rubber
The sealing surface of glue asbestos board.Valve rod 8 is eccentric with butterfly plate 7, and the runner of valve rod 8 and valve body 5 is eccentric, and the runner of butterfly plate 7 and valve body 5 is inclined
The heart, a three dimension eccentric structure is formed, enables butterfly plate 7 and the instantaneous touch of valve seal ring 10 or disengaging, is truly realized no mill
The requirement of damage, and formed by stainless steel forging with the sealing function for the more closing the more tight, valve seals 9, and be movable, tool
There is anti abrasive feature, and service life length, because valve seals 9 are movable, therefore can be worked as with bidirectional bearing
Valve seals 9 have breakage either can not be in use, can be drawn off repairing or replacing, and the entirety for improving butterfly valve uses the longevity
Life, butterfly plate sealing ring 9 using soft or hard stacked stainless steel substrates and rubber asbestos plate sealing surface, make it have metal hard-sealing and
The two-fold advantage of elastic packing, no matter excellent sealing property is respectively provided with low temperature and worst hot case.Butterfly plate sealing ring 9 it is close
The sealing surface of front cover and valve seal ring 10 is conical ring face, and the cone angle of butterfly plate sealing ring 9 is less than rubbing for valve seal ring 10
Wipe angle.Because the cone angle of butterfly plate sealing ring 9 is less than the angle of friction of valve seal ring 10, butterfly plate is closed to realizing oneself during sealing station immediately
Lock, will not occur butterfly plate 7 and close the failure of position, while valve is born certain buffer brake impact.Butterfly plate sealing ring 9
Outside be provided with sealing ring pressing plate 6, sealing ring pressing plate 6 is connected by soket head cap screw 14 with butterfly plate 7, and sealing ring pressing plate 6 is used for
Fixed butterfly plate sealing ring 9, and sealing ring pressing plate 6 is sized to be slightly smaller than butterfly plate sealing ring 9, by soket head cap screw 14 by sealing ring
Pressing plate 6 is connected with butterfly plate 7 so that structure is even closer, attractive in appearance.
Therefore, the utility model with abrasive effect is small, sealing property is excellent, seal member can with changing, with self-locking work(
The beneficial effect of energy.
Claims (5)
1. a kind of three dimension eccentric multiple-layer metal hard seal butterfly valve, including support（1）, valve body（5）, valve seat（13）, valve rod（8）With
Pass through valve rod（8）Installed in valve body（5）Runner in butterfly plate（7）, it is characterized in that, the valve rod（8）Axis and butterfly plate（7）
Sealing surface deviate, the valve rod（8）Axis and valve body（5）Runner axis runout, the butterfly plate（7）Axis of rotation with
Valve body（5）Runner axis formed an eccentric angle, the valve body（5）Flow diameter direction be provided with valve seal ring
（10）, the valve seal ring（10）For movable stainless steel forgings, the butterfly plate（7）Axial direction be provided with butterfly plate sealing ring
（9）, the butterfly plate sealing ring（9）For multi-level soft or hard layer.
2. a kind of three dimension eccentric multiple-layer metal hard seal butterfly valve according to claim 1, it is characterized in that, the butterfly plate is close
Seal（9）Sealing surface and valve seal ring（10）Sealing surface be conical ring face, and butterfly plate sealing ring（9）Cone angle be less than valve
Body sealing ring（10）Angle of friction.
3. a kind of three dimension eccentric multiple-layer metal hard seal butterfly valve according to claim 1, it is characterized in that, the valve rod
（8）With valve body（5）The upper end of cooperation is provided with Upper shaft sleeve（4）, the Upper shaft sleeve（4）Upper end be provided with filler（3）, the filler
（3）Upper end be provided with gland（2）, the valve rod（8）With valve body（5）The lower end of cooperation is provided with Lower shaft sleeve（11）, it is described on
Axle sleeve（4）And Lower shaft sleeve（11）For self-lubricating composite shaft sleeve.
4. a kind of three dimension eccentric multiple-layer metal hard seal butterfly valve according to claim 1 or 2, it is characterized in that, the butterfly
Plate sealing ring（9）Outside be provided with sealing ring pressing plate（6）, the sealing ring pressing plate（6）Pass through soket head cap screw（14）With butterfly plate
（7）Connection.
5. a kind of three dimension eccentric multiple-layer metal hard seal butterfly valve according to claim 1, it is characterized in that, the valve rod
（8）Bottom be provided with divided ring（12）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720602108.7U CN206845922U (en) | 2017-05-26 | 2017-05-26 | A kind of three dimension eccentric multiple-layer metal hard seal butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720602108.7U CN206845922U (en) | 2017-05-26 | 2017-05-26 | A kind of three dimension eccentric multiple-layer metal hard seal butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206845922U true CN206845922U (en) | 2018-01-05 |
Family
ID=60797761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720602108.7U Active CN206845922U (en) | 2017-05-26 | 2017-05-26 | A kind of three dimension eccentric multiple-layer metal hard seal butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206845922U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113090422A (en) * | 2021-04-12 | 2021-07-09 | 渭南美联桥汽车新技术研究院有限公司 | High-temperature end valve assembly for exhaust gas recirculation |
-
2017
- 2017-05-26 CN CN201720602108.7U patent/CN206845922U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113090422A (en) * | 2021-04-12 | 2021-07-09 | 渭南美联桥汽车新技术研究院有限公司 | High-temperature end valve assembly for exhaust gas recirculation |
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