CN106870743A - A kind of eccentric-butterfly-valve - Google Patents
A kind of eccentric-butterfly-valve Download PDFInfo
- Publication number
- CN106870743A CN106870743A CN201510906294.9A CN201510906294A CN106870743A CN 106870743 A CN106870743 A CN 106870743A CN 201510906294 A CN201510906294 A CN 201510906294A CN 106870743 A CN106870743 A CN 106870743A
- Authority
- CN
- China
- Prior art keywords
- valve
- butterfly
- dish plate
- eccentric
- valve rod
- 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
-
- 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
- F16K1/221—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 specially adapted operating means therefor
-
- 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
- F16K1/2266—Shaping or arrangements of the sealing the sealing being arranged on the valve seat and being forced into sealing contact with the valve member by a spring or a spring-like member
-
- 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
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The invention discloses a kind of eccentric-butterfly-valve, the eccentric-butterfly-valve includes：Valve rod, dish plate, valve body, the valve rod is arranged on valve body through the runner of valve body, dish plate is installed on the valve rod, the bottom of the valve rod is provided with water pilot bearing, dish plate is installed in the middle part of the valve rod, the dish plate is in runner, the dish plate includes mounting hole and convex body, the mounting hole on dish plate is arranged on valve rod, the center line of the axial line, the vertical center line of the convex body of dish plate and valve flowing channel of the mounting hole is non-intersect, the convex body is shaped as circle, and the plan view shape of the sealing surface of the convex body is circular arc.Technical purpose of the invention is that a kind of reliability of offer is higher, opening and closing valve torque is smaller, seals the longer eccentric-butterfly-valve of more reliable, seal service life.
Description
Technical field
The present invention relates to valve field, particularly a kind of eccentric-butterfly-valve.
Background technology
In valve field, butterfly valve is that butterfly valve can be used to control the flowing of all kinds fluids such as empty gas and water, steam, various Korrosionsmediums, mud, oil product, liquid metal and radiating medium using one of valve widely.It is main on pipeline to play cut-out and throttling action.Butterfly valve opening and closing element is a discoidal butterfly plate, is rotated around the axis of its own in valve body, so as to reach the purpose for opening and closing or adjusting.There is butterfly valve simple structure, small volume, lightweight, material consumption to save, and installation dimension is small, switch is rapid,
90
° reciprocating rotating, the features such as driving moment is small, for blocking, connecting, adjusting the medium in pipeline, with good fluid handling properties and closes sealing property.
As the requirement to industrial level is improved constantly, under elevated pressure conditions, it is required that amount of leakage is considerably less, even require to reach zero leakage, also require that more and more higher in the service life to butterfly valve, good butterfly valve not only favorable sealing property, and long service life, so that the maintenance number of times of production line is few, production it is in hgher efficiency.
Eccentric-butterfly-valve belongs to moment of torsion sealing, and in the switch of valve, usual sealing structure is easily worn and torn, or even stuck appearance, causes leakage or other security incidents.
The content of the invention
For not enough present in above-mentioned technology, technical purpose of the invention is that a kind of reliability of offer is higher, opening and closing valve torque is smaller, seals the longer eccentric-butterfly-valve of more reliable, seal service life, and this eccentric-butterfly-valve can improve the security of production, the continuity of production.
The present invention is achieved through the following technical solutions：
A kind of eccentric-butterfly-valve, the eccentric-butterfly-valve includes：Valve rod, dish plate, valve body, the valve rod are arranged on valve body through the runner of valve body, and dish plate is provided with the valve rod, and the bottom of the valve rod is provided with water pilot bearing, dish plate is provided with the middle part of the valve rod
,
The dish plate is located at
In runner, the dish plate includes mounting hole and convex body, the mounting hole on dish plate is arranged on valve rod, the center line of the axial line, the vertical center line of the convex body of dish plate and valve flowing channel of the mounting hole is non-intersect, the convex body is shaped as circle, and the plan view shape of the sealing surface of the convex body is circular arc.
In above-mentioned technical proposal, water pilot bearing is provided with by the bottom in valve rod, so that the rotation of valve rod is more flexible light and handy, switch torque is smaller, water pilot bearing can provide valve rod the restraining force of radial direction simultaneously, separately designed by by the mounting hole of butterfly plate and butterfly plate, so that the axial line of butterfly plate is separated with the axial line of valve rod, by the axial line of mounting hole, the vertical center line of the convex body of dish plate is non-intersect with the center line of valve flowing channel, so that the switch torque of valve is smaller, reduce the abrasion and extruding of butterfly plate and seal, by by the plan view shape of the sealing surface of convex body for circular arc is caused in controlled valve, compared to common butterfly valve, butterfly plate is smaller with the abrasion of seal.
Further, the valve body is provided with retainer ring and screwed hole, the retainer ring is provided with annular groove with the end face of valve body contact, the retainer ring is provided with the arc annulus of projection near the inwall of dish plate, the retainer ring is provided with counter sink, and the screwed hole on the valve body is fixed with the counter sink in retainer ring by screw.
In above-mentioned technical proposal; by being provided with retainer ring and screw on valve body; so that more facilitating when seal is installed; caused in the case where valve is opened by the arc annulus that projection is provided with the inwall of annular groove; medium directly will not wash away to the seal in valve body; seal is protected, also causes that the flowing of medium is more smooth, turbulent flow will not be formed.
Further, the water pilot bearing is fixedly mounted in valve body, and the material of the water pilot bearing is non-metallic material.
Further, seal groove is provided with the valve body, the plan view shape of the seal groove is circular arc, and the cross sectional shape of the seal groove is rectangle, and groups of springs and sealing ring are provided with the seal groove.
It is circular arc by by the plan view shape of seal groove in above-mentioned technical proposal so that the sealing ring of installation can cooperatively form sealing surface with valve plate, and the seal groove of rectangle is more conducive to install groups of springs.
Further, stating groups of springs includes inner ring, outer shroud and several springs, and the spring is arranged between inner ring and outer shroud, the inner ring, outer shroud can bend in direction at the center line, the diameter of the outer shroud is fixed, it is described in be equipped with contraction mouth, the groups of springs section accounts for sealing slot cross-section
3/4
。
In above-mentioned technical proposal, by being set to groups of springs to be made up of inner ring, outer shroud and several springs, and interior it is equipped with contraction mouth so that groups of springs can form certain seal pressure to the sealing of valve plate, the sealing effectiveness of sealing is kept, also may be such that valve avoids stuck performance from improving.
Further, sealing ring is installed, the material of the sealing ring is fluorubber or nitrile rubber in the inner ring of the groups of springs.
In above-mentioned technical proposal, due to the good sealing effect of rubber seal, the groups of springs and the eccentric structure of valve being provided with can effectively slow down the friction of sealing ring so that the sealing effectiveness of whole valve is good, and the repair time span of valve is also larger, and cost is relatively lower.
The beneficial effects of the invention are as follows
:
1
, design by butterfly valve is eccentric so that the switch torque of valve is smaller, reduce butterfly plate with the abrasion of seal with extrude, improve the service life of valve, reduce and be opened and closed the power that valve is consumed；
2
, by by the plan view shape of valve plate and seal groove be circular arc so that be opened and closed valve when torque it is smaller, with valve body on seal frictional force it is smaller, can more avoid valve plate stuck；
3
, by sealing ring be externally provided with groups of springs so that the power size that valve plate is acted on sealing ring is variable, it is to avoid directly cut off sealing ring when valve plate is blocked, and improves the reliability of valve and the security of production.
Brief description of the drawings
Figure
1
It is the structural representation of invention.
Marked in figure：
1
For butterfly plate,
2
For valve body,
3
For valve rod,
4
For sealing ring,
5
For groups of springs,
6
For retainer ring,
7
It is water pilot bearing.
Specific embodiment
The present invention is described in detail below in conjunction with the accompanying drawings.
As schemed
1
A kind of shown eccentric-butterfly-valve, including butterfly plate
1
, valve body
2
, valve rod
3
, sealing ring
4
, groups of springs
5
, retainer ring
6
, water pilot bearing
7
, the valve rod
3
Through valve body
2
Runner be arranged on valve body
2
On, the valve rod
3
On dish plate is installed
1
, the valve rod
3
Bottom be provided with water pilot bearing
7
, the valve rod
3
Middle part dish plate is installed
1,
The dish plate
1
In runner, the dish plate
1
It is described located at dish plate including mounting hole and convex body
1
On mounting hole be arranged on valve rod
3
On, the axial line of the mounting hole, dish plate
1
Convex body vertical center line it is non-intersect with the center line of valve flowing channel, the convex body is shaped as circle, and the plan view shape of the sealing surface of the convex body is circular arc；
The valve body
2
It is provided with retainer ring
6
And screwed hole, the retainer ring
6
With valve body
2
The end face of contact is provided with annular groove, the retainer ring
6
Near dish plate
1
Inwall be provided with projection arc annulus, the retainer ring
6
It is provided with counter sink, the valve body
2
On screwed hole and retainer ring
6
On counter sink fixed by screw；The water pilot bearing
7
It is fixedly mounted on valve body
2
It is interior, the water pilot bearing
7
Material be non-metallic material, water pilot bearing is chosen as
F102
Bearing；The valve body
2
Seal groove is inside provided with, the plan view shape of the seal groove is circular arc, and the cross sectional shape of the seal groove is rectangle, and groups of springs is provided with the seal groove
5
And sealing ring
4
；The groups of springs
5
Including inner ring, outer shroud and several springs, the spring is arranged between inner ring and outer shroud, the inner ring, outer shroud can direction bending at the center line, the diameter of the outer shroud fixes, it is described in be equipped with contraction mouth, the groups of springs
5
Section accounts for sealing slot cross-section
3/4
；The groups of springs
5
Inner ring on sealing ring is installed
4
, the material of the sealing ring is fluorubber.
This eccentric-butterfly-valve is by manipulating valve rod
3
Rotate, drive and be located at valve rod
3
On butterfly plate
1
, butterfly plate
1
Rotate the convex body and sealing ring for causing butterfly plate
4
Contact, due to convex body and sealing ring
4
Plan view shape is set to circular arc, axial line, dish plate to butterfly plate mounting hole
1
Convex body vertical center line and valve flowing channel the disjoint eccentric design of center line so that open and butterfly plate when closing valve
1
It is smaller to the extruding of sealing ring, rub smaller, butterfly plate
1
Sealing ring can rapidly be departed from
4
, hard extruding will not be formed, reduce out
/
The torque of closing valve and abrasion, improve sealing ring
4
Service life, reduce opening and closing valve power consumption；Opening
/
During closing valve, butterfly plate 1 is to sealing ring
4
Extruding, located at sealing ring
4
Outer groups of springs
5
Can expand and shrink, further avoid sealing ring
4
It is impaired, improve and use sealing ring
4
Service life, it is to avoid butterfly valve is stuck, and increased the security of butterfly valve.
Claims (6)
1. a kind of eccentric-butterfly-valve, the eccentric-butterfly-valve includes：Valve rod（3）, dish plate（1）, valve body（2）, the valve rod（3）Through valve body（2）Runner be arranged on valve body（2）On, the valve rod（3）On dish plate is installed（1）, it is characterised in that the valve rod（3）Bottom be provided with water pilot bearing（7）, the valve rod（3）Middle part dish plate is installed（1）, the dish plate（1）In runner, the dish plate（1）It is described located at dish plate including mounting hole and convex body（1）On mounting hole be arranged on valve rod（3）On, the axial line of the mounting hole, dish plate（1）Convex body vertical center line it is non-intersect with the center line of valve flowing channel, the convex body is shaped as circle, and the plan view shape of the sealing surface of the convex body is circular arc.
2. eccentric-butterfly-valve according to claim 1, it is characterised in that the valve body（2）It is provided with retainer ring（6）And screwed hole, the retainer ring（6）With valve body（2）The end face of contact is provided with annular groove, the retainer ring（6）Near dish plate（1）Inwall be provided with projection arc annulus, the retainer ring（6）It is provided with counter sink, the valve body（2）On screwed hole and retainer ring（6）On counter sink fixed by screw.
3. eccentric-butterfly-valve according to claim 2, it is characterised in that the water pilot bearing（7）It is fixedly mounted on valve body（2）It is interior, the water pilot bearing（7）Material be non-metallic material.
4. eccentric-butterfly-valve according to claim 3, it is characterised in that the valve body（2）Seal groove is inside provided with, the plan view shape of the seal groove is circular arc, and the cross sectional shape of the seal groove is rectangle, and groups of springs is provided with the seal groove（5）And sealing ring（4）.
5. eccentric-butterfly-valve according to claim 4, it is characterised in that the groups of springs（5）Including inner ring, outer shroud and several springs, the spring is arranged between inner ring and outer shroud, the inner ring, outer shroud can direction bending at the center line, the diameter of the outer shroud fixes, it is described in be equipped with contraction mouth, the groups of springs（5）Section accounts for the 3/4 of sealing slot cross-section.
6. eccentric-butterfly-valve according to claim 5, it is characterised in that the groups of springs（5）Inner ring on sealing ring is installed（4）, the material of the sealing ring is fluorubber or nitrile rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510906294.9A CN106870743A (en) | 2015-12-10 | 2015-12-10 | A kind of eccentric-butterfly-valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510906294.9A CN106870743A (en) | 2015-12-10 | 2015-12-10 | A kind of eccentric-butterfly-valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106870743A true CN106870743A (en) | 2017-06-20 |
Family
ID=59237498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510906294.9A Pending CN106870743A (en) | 2015-12-10 | 2015-12-10 | A kind of eccentric-butterfly-valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106870743A (en) |
-
2015
- 2015-12-10 CN CN201510906294.9A patent/CN106870743A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170620 |
|
| WD01 | Invention patent application deemed withdrawn after publication |