CN106870745A - A kind of valve seat of eccentric-butterfly-valve - Google Patents
A kind of valve seat of eccentric-butterfly-valve Download PDFInfo
- Publication number
- CN106870745A CN106870745A CN201510906595.1A CN201510906595A CN106870745A CN 106870745 A CN106870745 A CN 106870745A CN 201510906595 A CN201510906595 A CN 201510906595A CN 106870745 A CN106870745 A CN 106870745A
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- CN
- China
- Prior art keywords
- inner ring
- outer shroud
- valve
- butterfly
- valve seat
- 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
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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
- 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
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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
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve seats
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses a kind of valve seat of eccentric-butterfly-valve, the valve seat includes：Groups of springs, sealing ring, the groups of springs includes inner ring, outer shroud and several springs, and sealing ring is provided with the inner ring of the groups of springs, and the spring is arranged between inner ring and outer shroud, the inner ring, outer shroud can be bent in direction at the center line, and the diameter of the outer shroud is fixed.Technical purpose of the invention is to provide that a kind of reliability for causing butterfly valve is higher, opening and closing valve torque is smaller, the eccentric-butterfly-valve that sealing property is more reliable, seal service life is longer valve seat, and the valve seat of this eccentric-butterfly-valve can improve the security of production, the continuity of production.
Description
Technical field
The present invention relates to valve field, particularly a kind of valve seat 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, installation dimension is small, and switch is rapid, 90 ° of reciprocating rotatings, the features such as driving moment is small, for blocking, connecting, adjusting the medium in pipeline, with good fluid handling properties and closing 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, and the damage of butterfly valve is mainly the damage of valve plate and valve seat, particularly valve seat is slightly damaged and will cause leakage so that the reliability and security of butterfly valve is substantially reduced.
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 to provide that a kind of reliability for causing butterfly valve is higher, opening and closing valve torque is smaller, the eccentric-butterfly-valve that sealing property is more reliable, seal service life is longer valve seat, and the valve seat of 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 valve seat of eccentric-butterfly-valve, the valve seat includes：Groups of springs, sealing ring, the groups of springs includes inner ring, outer shroud and several springs, and sealing ring is provided with the inner ring of the groups of springs, and the spring is arranged between inner ring and outer shroud, the inner ring, outer shroud can be bent in direction at the center line, and the diameter of the outer shroud is fixed.
In above-mentioned technical proposal, groups of springs is set to by by valve seat, sealing ring two parts, groups of springs is divided into inner ring, outer shroud and spring, the diameter of outer shroud is constant, outer shroud can bend in its direction of axis line, but can not be in its radially bending, this can adapt to the mounting groove of section distortion, the sealing ring being provided with inner ring works in coordination to form sealing surface with valve plate, the diameter of inner ring can expand or shrink to a certain extent, so that in valve plate crush seal circle, sealing ring has certain expansion, reduce the friction of valve plate and sealing ring, also avoid the stuck of valve plate simultaneously, so that valve seat is relatively reliable, extend the physical life of valve seat, increased security.
A kind of valve seat of eccentric-butterfly-valve, the cross sectional shape of the outer shroud is rectangle, the outer shroud is made up of several sections and pin, the sections is provided with column pin hole, the column pin hole is perpendicular to anchor ring, the sections is joined end to end by pin, and the inner ring surface of the outer shroud is provided with several annular duck eyes being evenly arranged.
In above-mentioned technical proposal, outer shroud is set to several sections so that outside can keep the support inner ring of rigidity one of radial direction in the bending of its direction of axis line without the bending of radial direction again, and the annular duck eye being provided with is for installing spring.
A kind of valve seat of eccentric-butterfly-valve, the cross sectional shape of the inner ring is rectangle, the inner ring is made up of several sections and pin, the sections is provided with column pin hole, the column pin hole is perpendicular to anchor ring, the head and the tail junction of the inner ring is provided with contraction mouth, and the inner ring surface of the inner ring is provided with several annular duck eyes being evenly arranged, and the quantity of the interior annular duck eye being equipped with is equal to the annular duck eye that outer shroud is provided with.
In above-mentioned technical proposal; inner ring is set to the sections of pin connection; so that inner ring and outer rings it is the same can its direction of axis line bending without radial direction again bending; the contraction mouth being provided with enable to the diameter of inner ring can become to a certain extent it is big or reduce, sealing ring can be protected to one buffering capacity of sealing ring in inner ring; also under the action of the spring simultaneously; inner ring gives sealing ring one pressure so that inner ring being capable of compression seal circle, the good sealing of formation.
A kind of valve seat of eccentric-butterfly-valve, the contraction mouth is located at the place that joins end to end of inner ring, the joint face upper shed rectangular recess of the first sections of the inner ring, the periproct section of the inner ring is set to that the cylinder in rectangular recess can be injected, and the cylinder can freely stretch in rectangular recess.
In above-mentioned technical proposal, the groove and projection that the head and the tail two ends that the contraction mouth of inner ring is set to inner ring are formed so that inner ring can to a certain extent become big or reduce.
A kind of valve seat of eccentric-butterfly-valve, annular duck eye in the inner ring with outer shroud annular duck eye on be connected with groups of springs, the spring on the spring is compression-type helical spring, and the material of the spring is stainless steel.
In above-mentioned technical proposal, inner ring is connected with outer shroud by helical spring, helical spring is compression-type, so that when sealing ring is squeezed, helical spring is compressed so that inner ring expands, sealing ring is avoided to be damaged, helical spring is stainless steel so that helical spring is more robust.
A kind of valve seat of eccentric-butterfly-valve, the sealing ring installed on the inner ring inwall is tightly invested on the inwall of inner ring, and the cross sectional shape of the sealing ring is circle, and the material of the sealing ring is non-metallic material.
In above-mentioned technical proposal, sealing ring is set to non-metallic material, enable the deformation that sealing ring is small, avoid being damaged, inner ring can be passed to after sealing ring is squeezed power so that inner ring expands, so as to alleviate the stress of sealing ring, the service life of sealing ring is increased, the friction of sealing ring is reduced.
The beneficial effects of the invention are as follows:
1, groups of springs is set to by by valve seat, sealing ring two parts, groups of springs is divided into inner ring, outer shroud and spring, outer shroud can bend in its direction of axis line, the mounting groove of section distortion is adapted to this, the sealing ring being provided with inner ring works in coordination to form sealing surface with valve plate, the diameter of inner ring can expand or shrink to a certain extent, so that in valve plate crush seal circle, sealing ring has certain expansion, reduce the friction of valve plate and sealing ring, also avoid the stuck of valve plate simultaneously, so that valve seat is relatively reliable, extend the physical life of valve seat, increased security, also cause that the power size that valve plate is acted on sealing ring is variable simultaneously, directly sealing ring is cut off when avoiding valve plate from blocking, improve the reliability of valve and the security of production.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Marked in figure：1 is groups of springs, 1-1 is inner ring, 1-2 is spring, 1-3 is outer shroud, 2 is sealing ring.
Specific embodiment
The present invention is described in detail below in conjunction with the accompanying drawings.
A kind of valve seat of eccentric-butterfly-valve as shown in Figure 1, groups of springs 1, inner ring 1-1, spring 1-2, outer shroud 1-3, sealing ring 2, the groups of springs 1 includes inner ring 1-1, outer shroud 1-3 and several springs 1-2, sealing ring 2 is provided with the inner ring 1-1 of the groups of springs 1, the spring 1-2 is arranged between inner ring 1-1 and outer shroud 1-3, the inner ring 1-1, outer shroud 1-3 can bend in direction at the center line, the diameter of the outer shroud 1-3 is fixed, outer shroud 1-3, the material of inner ring 1-1 can be metal or nonmetallic, the present embodiment elects 20Cr13 as, and the material of spring 1-2 is stainless steel；
The cross sectional shape of the outer shroud 1-3 is rectangle,The outer shroud 1-3 is made up of several sections and pin,The sections is provided with column pin hole,The column pin hole is perpendicular to anchor ring,The sections is joined end to end by pin,The inner ring surface of the outer shroud 1-3 is provided with the annular duck eye that several are evenly arranged,The cross sectional shape of the inner ring 1-1 is rectangle,The inner ring 1-1 is made up of several sections and pin,The sections is provided with column pin hole,The column pin hole is perpendicular to anchor ring,The head and the tail junction of the inner ring 1-1 is provided with contraction mouth,The inner ring surface of the inner ring 1-1 is provided with the annular duck eye that several are evenly arranged,The quantity of the annular duck eye that the inner ring 1-1 is provided with is equal to the annular duck eye that outer shroud 1-3 is provided with,The spring wire of spring 1-2 is through in duck eye,So that spring is fixedly mounted,Arc groove can be provided with the inner ring surface of inner ring 1-1,So that more facilitating when sealing ring is installed；
The contraction mouth located at the place that joins end to end of inner ring 1-1, the joint face upper shed rectangular recess of the first sections of the inner ring 1-1, the periproct section of the inner ring 1-1 is set to that the cylinder in rectangular recess can be injected, and the cylinder can freely stretch in rectangular recess；
Annular duck eye on the inner ring 1-1 is connected with groups of springs 1 with outer shroud 1-3 on annular duck eye, and the spring 1-1 on the spring 1 is compression-type helical spring, and the material of the spring 1-1 is stainless steel；
The sealing ring 2 installed on the inner ring 1-1 inwalls is tightly invested on the inwall of inner ring 1-1, the cross sectional shape of the sealing ring 2 is circle, the material of the sealing ring 2 is non-metallic material, the material of sealing ring 2 determines according to the medium of conveying, when the medium of conveying is normal temperature clear water, most sealed material all can select, and this example selects more corrosion-resistant, resistant to elevated temperatures fluorubber.
Claims (6)
1. a kind of valve seat of eccentric-butterfly-valve, it is characterised in that the valve seat includes：Groups of springs（1）, sealing ring（2）, the groups of springs（1）Including inner ring（1-1）, outer shroud（1-3）And several springs（1-2）, the groups of springs（1）Inner ring（1-1）Inside it is provided with sealing ring（2）, the spring（1-2）Installed in inner ring（1-1）With outer shroud（1-3）Between, the inner ring（1-1）, outer shroud（1-3）Can direction bending, the outer shroud at the center line（1-3）Diameter fix.
2. the valve seat of eccentric-butterfly-valve according to claim 1, it is characterised in that the outer shroud（1-3）Cross sectional shape be rectangle, the outer shroud（1-3）It is made up of several sections and pin, the sections is provided with column pin hole, perpendicular to anchor ring, the sections is joined end to end the column pin hole by pin, the outer shroud（1-3）Inner ring surface be provided with several annular duck eyes being evenly arranged.
3. the valve seat of eccentric-butterfly-valve according to claim 2, it is characterised in that the inner ring（1-1）Cross sectional shape be rectangle, the inner ring（1-1）Be made up of several sections and pin, the sections is provided with column pin hole, the column pin hole perpendicular to anchor ring, the inner ring（1-1）Head and the tail junction be provided with contraction mouth, the inner ring（1-1）Inner ring surface be provided with several annular duck eyes being evenly arranged, the inner ring（1-1）The quantity of the annular duck eye being provided with is equal to outer shroud（1-3）The annular duck eye being provided with.
4. the valve seat of eccentric-butterfly-valve according to claim 3, it is characterised in that the contraction mouth is located at inner ring（1-1）The place that joins end to end, the inner ring（1-1）First sections joint face upper shed rectangular recess, the inner ring（1-1）Periproct section be set to that the cylinder in rectangular recess can be injected, the cylinder can freely stretch in rectangular recess.
5. the valve seat of eccentric-butterfly-valve according to claim 4, it is characterised in that the inner ring（1-1）On annular duck eye and outer shroud（1-3）Groups of springs is connected with upper annular duck eye（1）, the spring（1）On spring（1-1）It is compression-type helical spring, the spring（1-1）Material be stainless steel.
6. the valve seat of eccentric-butterfly-valve according to claim 5, it is characterised in that the inner ring（1-1）The sealing ring installed on inwall（2）Tightly invest inner ring（1-1）Inwall on, the sealing ring（2）Cross sectional shape for circle, the sealing ring（2）Material be non-metallic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510906595.1A CN106870745A (en) | 2015-12-10 | 2015-12-10 | A kind of valve seat of eccentric-butterfly-valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510906595.1A CN106870745A (en) | 2015-12-10 | 2015-12-10 | A kind of valve seat of eccentric-butterfly-valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106870745A true CN106870745A (en) | 2017-06-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510906595.1A Pending CN106870745A (en) | 2015-12-10 | 2015-12-10 | A kind of valve seat of eccentric-butterfly-valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106870745A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108103559A (en) * | 2017-11-01 | 2018-06-01 | 天津普利爱特真空镀膜有限公司 | A kind of preparation process of sealing device |
| IT202100009890A1 (en) * | 2021-04-19 | 2022-10-19 | Sterivalves S R L | BUTTERFLY VALVE WITH ELASTIC SEAL WITH VARIABLE CONFORMATION |
-
2015
- 2015-12-10 CN CN201510906595.1A patent/CN106870745A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108103559A (en) * | 2017-11-01 | 2018-06-01 | 天津普利爱特真空镀膜有限公司 | A kind of preparation process of sealing device |
| IT202100009890A1 (en) * | 2021-04-19 | 2022-10-19 | Sterivalves S R L | BUTTERFLY VALVE WITH ELASTIC SEAL WITH VARIABLE CONFORMATION |
| WO2022224285A1 (en) * | 2021-04-19 | 2022-10-27 | Sterivalves S.R.L. | Butterfly valve with variable configuration elastic gasket |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170620 |