CN104048055A - Perfect circle sealing surface two-way pressure butterfly valve - Google Patents
Perfect circle sealing surface two-way pressure butterfly valve Download PDFInfo
- Publication number
- CN104048055A CN104048055A CN201410251819.5A CN201410251819A CN104048055A CN 104048055 A CN104048055 A CN 104048055A CN 201410251819 A CN201410251819 A CN 201410251819A CN 104048055 A CN104048055 A CN 104048055A
- Authority
- CN
- China
- Prior art keywords
- valve
- center line
- sealing surface
- sealing
- butterfly plate
- 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.)
- Pending
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/226—Shaping or arrangements of the sealing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/226—Shaping or arrangements of the sealing
- F16K1/2263—Shaping or arrangements of the sealing the sealing being arranged on the valve seat
Abstract
The invention relates to a perfect circle sealing surface two-way pressure butterfly valve, comprising a valve body, a movable valve seat, a butterfly plate and a valve rod, wherein the valve body comprises a valve runner provided with a horizontally extending valve runner center line, the movable valve seat is arranged in the valve body, the butterfly plate is fixedly connected with the lower end of the valve rod, the movable valve seat is positioned at one side of the butterfly plate, a movable sealing ring is arranged on the butterfly plate and is fixed on the butterfly plate through a butterfly plate pressure ring, a valve seat sealing surface is arranged in the movable valve seat, the movable sealing ring is circumferentially provided with a sealing ring sealing surface which is matched with the valve seat sealing surface to form a sealing pair for sealing the valve, the sealing pair is a perfect circle sealing pair, the valve seat sealing surface forms a part of an oblique ellipse cone which is tilted relative to the valve runner center line, the valve runner center line coincides with the axial center line of the perfect circle sealing pair, and the vertex is positioned below the valve runner center line. The structure is simple, no friction exists between the sealing surfaces, the sealing effect is good, corrosion resistance is realized, the service life is long, the runner area is reduced, the reseating torque is reduced, the model selection cost of an execution mechanism is lowered, the mounting is convenient, and the centering performance is good.
Description
Technical field
The present invention relates to a kind of Bidirectional pressure butterfly valve, relate in particular to a kind of just round sealing surface Bidirectional pressure butterfly valve, belong to butterfly valve field.
Background technique
In known butterfly valve technology, it is rubber, teflon, multi-level composite material etc. that its seal form adopts sealing configuration sealing material more at present.Due to the restriction of structure characteristic, be not suitable with high temperature resistant, high pressure and corrosion-resistant, the bad working environments such as resistance to wear.The hard sealed valve of industrial High Temperature High Pressure mainly be take gate valve, stop valve as main, and this type of valve major defect is: valve is all upper and lower opening structure, and the weight of valve own is large, and cost is high, and on-the-spot installing space is large.
Current oval cone three eccentric butterfly valve has started to popularize, and can substitute above costs high, lifting type cut-off valve, oval cone three eccentric butterfly valve, sealed section area is larger, and required essential specific pressure increases, close moment and also just increase, the also increase accordingly of drive unit.It is poor that oval sealing width is installed centering, installs more loaded down with trivial details.
Summary of the invention
For above-mentioned defect, the object of the present invention is to provide a kind of simple in structure, nothing friction between sealing surface, good sealing effect, corrosion-resistant, a kind of just round sealing surface Bidirectional pressure butterfly valve of long service life, can reduce Flow area, reduce closing torque, reduce actuator's type selecting cost, and easy for installation, centering is good.
The technical solution adopted in the present invention is for this reason:
Comprise valve body, movable valve seat, butterfly plate and valve rod, valve body comprises the valve flowing channel with horizontally extending valve flowing channel center line, movable valve seat is installed in valve body, butterfly plate is fixedly connected with valve rod lower end, moving valve seat is positioned at butterfly plate one side, butterfly plate is provided with loose gland, loose gland is fixed on butterfly plate by butterfly plate pressure ring, in movable valve seat, be provided with sealing surface of seat, on loose gland circumference, have with sealing surface of seat and match and form the seal ring seal face of the sealing pair that seals this valve, described sealing pair is just round sealing pair, described sealing surface of seat forms a part for the tilting oval cone of relative this valve flowing channel lack of alignment, the triangular-section that summit in described tilting oval cone and oval bottom surface major axis thereof coexist is coplanar and vertical with this valve rod axis with described valve flowing channel center line, valve flowing channel center line overlaps with just round sealing pair longitudinal center line, described summit is positioned at valve flowing channel center line below.
Described summit is between the horizontal line of the crossing intersection point of valve flowing channel center line and described triangular-section and loose gland lower end.
Described summit is positioned at described triangular-section and intersect below the horizontal line of intersection point loose gland lower end.
Described summit is positioned at described triangular-section and intersect on the horizontal line of intersection point loose gland lower end.
Advantage of the present invention is:
The present invention is simple in structure, nothing friction between sealing surface, and good sealing effect, corrosion-resistant, long service life, can reduce Flow area, reduces closing torque, reduces actuator's type selecting cost, and easy for installation, and centering is good.
Accompanying drawing explanation
Fig. 1, Fig. 2, Fig. 3 are structural representations of the present invention.
In figure, 1 is valve body, the 2nd, movable valve seat, the 3rd, and dish plate, the 4th, valve rod, the 5th, valve flowing channel center line, the 6th, loose gland, the 7th, butterfly plate pressure ring, the 8th, is just justifying sealing pair longitudinal center line.
Embodiment
A kind of just round sealing surface Bidirectional pressure butterfly valve, comprise valve body 1, movable valve seat 2, butterfly plate 3 and valve rod 4, valve body 1 comprises the valve flowing channel with horizontally extending valve flowing channel center line 5, movable valve seat 2 is installed in valve body 1, butterfly plate 3 is fixedly connected with valve rod 4 lower ends, movable valve seat 2 is positioned at butterfly plate 3 one sides, butterfly plate 3 is provided with loose gland 6, loose gland 6 is fixed on butterfly plate 3 by butterfly plate pressure ring 7, in movable valve seat 2, be provided with sealing surface of seat, on loose gland 6 circumference, have with sealing surface of seat and match and form the seal ring seal face of the sealing pair that seals this valve, described sealing pair is just round sealing pair, described sealing surface of seat forms a part for the tilting oval cone of relative these valve flowing channel center line 5 deflections, the triangular-section that summit in described tilting oval cone and oval bottom surface major axis thereof coexist is coplanar with described valve flowing channel center line 5 and vertical with these valve rod 4 axis, valve flowing channel center line 5 overlaps with just round sealing pair longitudinal center line 8, described summit is positioned at valve flowing channel center line 5 belows.
Described summit is between the horizontal line of the crossing intersection point of valve flowing channel center line 5 and described triangular-section and loose gland 6 lower ends.
Described summit is positioned at described triangular-section and intersect below the horizontal line of intersection point loose gland 6 lower ends.
Described summit is positioned at described triangular-section and intersect on the horizontal line of intersection point loose gland 6 lower ends.
Claims (4)
1. just justifying sealing surface Bidirectional pressure butterfly valve for one kind, comprise valve body, movable valve seat, butterfly plate and valve rod, valve body comprises the valve flowing channel with horizontally extending valve flowing channel center line, movable valve seat is installed in valve body, butterfly plate is fixedly connected with valve rod lower end, moving valve seat is positioned at butterfly plate one side, butterfly plate is provided with loose gland, loose gland is fixed on butterfly plate by butterfly plate pressure ring, in movable valve seat, be provided with sealing surface of seat, on loose gland circumference, have with sealing surface of seat and match and form the seal ring seal face of the sealing pair that seals this valve, it is characterized in that, described sealing pair is just round sealing pair, described sealing surface of seat forms a part for the tilting oval cone of relative this valve flowing channel lack of alignment, the triangular-section that summit in described tilting oval cone and oval bottom surface major axis thereof coexist is coplanar and vertical with this valve rod axis with described valve flowing channel center line, valve flowing channel center line overlaps with just round sealing pair longitudinal center line, described summit is positioned at valve flowing channel center line below.
2. a kind of just round sealing surface Bidirectional pressure butterfly valve according to claim 1, is characterized in that, described summit is between the horizontal line of the crossing intersection point of valve flowing channel center line and described triangular-section and loose gland lower end.
3. a kind of just round sealing surface Bidirectional pressure butterfly valve according to claim 1, is characterized in that, described summit is positioned at described triangular-section and intersect below the horizontal line of intersection point loose gland lower end.
4. a kind of just round sealing surface Bidirectional pressure butterfly valve according to claim 1, is characterized in that, described summit is positioned at described triangular-section and intersect on the horizontal line of intersection point loose gland lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410251819.5A CN104048055A (en) | 2014-06-09 | 2014-06-09 | Perfect circle sealing surface two-way pressure butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410251819.5A CN104048055A (en) | 2014-06-09 | 2014-06-09 | Perfect circle sealing surface two-way pressure butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104048055A true CN104048055A (en) | 2014-09-17 |
Family
ID=51501283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410251819.5A Pending CN104048055A (en) | 2014-06-09 | 2014-06-09 | Perfect circle sealing surface two-way pressure butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104048055A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109114245A (en) * | 2018-09-08 | 2019-01-01 | 谢文学 | A kind of deformation spherical surface eccentric valve |
-
2014
- 2014-06-09 CN CN201410251819.5A patent/CN104048055A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109114245A (en) * | 2018-09-08 | 2019-01-01 | 谢文学 | A kind of deformation spherical surface eccentric valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140917 |
|
| WD01 | Invention patent application deemed withdrawn after publication |