CN110274035A - Bidirectional bearing double eccentric butterfly valve - Google Patents
Bidirectional bearing double eccentric butterfly valve Download PDFInfo
- Publication number
- CN110274035A CN110274035A CN201910620650.9A CN201910620650A CN110274035A CN 110274035 A CN110274035 A CN 110274035A CN 201910620650 A CN201910620650 A CN 201910620650A CN 110274035 A CN110274035 A CN 110274035A
- Authority
- CN
- China
- Prior art keywords
- valve
- ring
- valve seat
- double eccentric
- eccentric butterfly
- 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
-
- 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
-
- 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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
- F16K47/023—Means in valves for absorbing fluid energy for preventing water-hammer or noise for preventing water-hammer, e.g. damping of the valve movement
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The present invention proposes that a kind of structure is simple, it is easy to use, it can be realized the bidirectional bearing double eccentric butterfly valve of two-way hard seal, including valve body, valve seat is provided in the valve body, valve plate is rotatably equipped in the valve seat, eccentric setting has valve rod on the valve plate, the valve rod is pierced by the valve body, the valve seat is set there are two sealing ring, when the valve plate is in close state, two sealing rings, valve seat, annular clamping cavity is surrounded between valve plate jointly, the quoit of the U-shaped structure in the cross section that the sealing ring is, gasket ring is provided in the U-shaped annular groove of the sealing ring, the gasket ring is rubber material, the two sides of the valve seat are provided with compression ring, annular groove is formed between the valve seat and the compression ring, two sealing rings are pressed in respectively in the annular groove, the front end notch of the annular groove is formed to generate for the sealing ring and be squeezed What swaging became allows bit space.
Description
Technical field
The present invention relates to valve field, in particular to a kind of bidirectional bearing double eccentric butterfly valve.
Background technique
Double eccentric butterfly valve is further improved on the basis of single eccentric-butterfly-valve.Its structure feature is both to have deviateed in valve rod axle center
Butterfly plate center also offsets from body central.The effect of double bias enables valve to be turned on rear butterfly plate to be immediately detached from valve seat, significantly
Eliminate the unnecessary excessive compression of butterfly plate and valve seat, scrape phenomenon, alleviate unlatching resistance away from, reduce abrasion, improve
Longer seat life.What is scraped is greatly lowered while also making double eccentric butterfly valve that can also use metal seat valve, improve butterfly valve and exist
The application of high-temperature field.
Application No. is the 201380022142.1(applyings date to disclose a kind of double bias for the patent of invention of 2013.04.25)
Butterfly valve, the double eccentric butterfly valve include valve body, the valve seat supported by the valve body, and are installed on rotary setting in the valve body
Shaft on valve disc, the axis runout of the shaft in the valve body center line and the valve disc center line (double partially
The heart).It is provided on the excircle of the valve disc for the knife edge with the valve seat frictionless contact.When the valve disc rotates
When, the knife edge is disengaged with the valve seat, until in full closing state, the knife edge contacts the valve seat, excellent
Point is, realizes the tight seal for not having any friction between valve disc and valve seat, the sharp bladed of the valve disc of the invention
Side protrusion is not contacted with valve seat, and until valve contract fully, sharp valve disc edge protuberance can be processed on valve disc by lathe, therefore
Reduce for three-eccentric-butterfly-valve processing difficulty and cost demand, but its using when still have following defect:
By knife edge realization single facer between valve body and valve plate, and knife edge has ductility, for a long time rushing in hydraulic pressure
It hits down and is easily deformed, and single facer effect is poor.
Summary of the invention
Therefore, for above-mentioned problem, the present invention proposes that a kind of structure is simple, easy to use, can be realized
The bidirectional bearing double eccentric butterfly valve of two-way hard seal.
To realize above-mentioned technical problem, the solution that the present invention takes are as follows: bidirectional bearing double eccentric butterfly valve, including valve
Body is provided with valve seat in the valve body, valve plate is rotatably equipped in the valve seat, eccentric setting has valve rod on the valve plate, institute
It states valve rod and is pierced by the valve body, the valve seat sets that there are two sealing rings, and when the valve plate is in close state, two described close
Seal, valve seat surround annular clamping cavity between valve plate jointly.
It is further improved to be: the quoit of the U-shaped structure in the cross section that the sealing ring is.
It is further improved to be: to be provided with gasket ring in the U-shaped annular groove of the sealing ring.
Further improved to be: the gasket ring is rubber material.
Further improved to be: the two sides of the valve seat are provided with compression ring, shape between the valve seat and the compression ring
Slot is circularized, two sealing rings are pressed in respectively in the annular groove.
Further improved to be: the front end notch of the annular groove forms the resigning that compressional deformation is generated for the sealing ring
Space.
It is further improved to be: the valve seat be equipped with the valve plate the first pressure release runner being connected to the clip cavity,
The opening of second pressure release runner, the first pressure release runner and the second pressure release runner is located at ipsilateral.
Further improved to be: the first pressure release runner is opened in far from the valve rod side.
Further improved to be: the second pressure release runner is located at below the anchor ring of the valve plate.
By using preceding solution, the beneficial effects of the present invention are:
1, the configuration of the present invention is simple, it is easy to use, it is cheap, the two-way hard seal of valve plate is realized by two sealing rings, from
And the sealing effect of butterfly valve is greatly improved, sealing ring is further increased using U-shaped design to improve the ductility of sealing ring
Hard sealing effect.
2, gasket ring is equipped in the U-shaped annular groove in sealing ring, when sealing ring contacts with valve plate and generates extruding, gasket ring can
Reverse tension is provided, to improve leakproofness, while being played a supporting role to sealing ring, is avoided compressional deformation excessive and deform,
Extend sealing ring service life.
3, sealing ring is compressed by compression ring, to make the installation and replacement in sealing ring.
4, by the first pressure release runner of setting and the second pressure release runner, to make the clip cavity and extraneous perforation, make simultaneously
Clip cavity external and internal pressure is identical, avoids forming negative pressure in clip cavity, reduces valve opening resistance.
5, it is opened in by the first pressure release runner far from the valve rod side, to make a part of pressure water by described the
One pressure release runner releases, so that the impact force of water hammer be effectively reduced, and disappears with the final plant closure of the valve plate, substantially mentions
High valve plate service life.
6, it is opened in by the second pressure release runner below the anchor ring of valve plate, so that the hydrops in clip cavity be made preferably to flow out.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the closed state of bidirectional bearing double eccentric butterfly valve of the embodiment of the present invention.
Fig. 2 is the structural schematic diagram of the semi-closed state of bidirectional bearing double eccentric butterfly valve of the embodiment of the present invention.
The end A enlarged drawing when Fig. 3 is the closed state of bidirectional bearing double eccentric butterfly valve of the embodiment of the present invention.
Fig. 4 is the valve seat partial enlarged view of bidirectional bearing double eccentric butterfly valve of the embodiment of the present invention.
Fig. 5 is the main view of bidirectional bearing double eccentric butterfly valve of the embodiment of the present invention.
In figure: valve body 1, valve seat 2, valve plate 3, valve rod 4, the first compression ring 5, the second compression ring 6, the first gasket ring 7, second pad
Ring 8, the second sealing ring 10, squeezes and allows bit space 11, the first pressure release runner 12, clip cavity 13, the second pressure release stream first sealing ring 9
Road 14.
Specific embodiment
Now in conjunction with the drawings and specific embodiments, the present invention is further described.
Embodiment:
With reference to Fig. 1-5, it is bidirectional bearing double eccentric butterfly valve, including valve body 1 that the embodiment of the present invention is revealed, in the valve body 1
It is provided with valve seat 2, valve plate 3 is rotatably equipped in the valve seat 2, eccentric setting has valve rod 4 on the valve plate 3, and the valve rod 4 is worn
The valve body 1 out, the valve body 1 are provided with the worm gear box (not shown) for driving the valve rod 4 to rotate outside,
The valve seat 2 is set there are two sealing ring, respectively the first sealing ring 9 and the second sealing ring 10, first sealing ring 9 and second
It is general to improve butterfly valve to realize the hard sealing of the valve plate 3 for the quoit of the U-shaped structure in the cross section that sealing ring 10 is
Property, it is first sealing ring 9, the second sealing ring 10, valve seat 2, common between valve plate 3 when the valve plate 3 is in close state
Annular clamping cavity 13 is surrounded, the two-way hard seal of the valve plate 3 is realized by two sealing rings, to greatly improve the sealing of butterfly valve
Effect.
In order to improve the better tensioner of sealing ring, the interior difference of the U-shaped annular groove of first sealing ring 9 and the second sealing ring 10
It is provided with the first gasket ring 7 made of elastic material, the second gasket ring 8, it is preferable that first gasket ring 7 and the second gasket ring 8 use
Rubber material is made, and when sealing ring contacts with the valve plate 3 and generates extruding, gasket ring is capable of providing reverse tension, to mention
High leakproofness, while playing a supporting role to sealing ring, it avoids compressional deformation excessive and deforms, extend sealing ring service life.
For the ease of the installation and replacement to sealing ring, the two sides of the valve seat 2 are provided with the first compression ring 5 and the second pressure
Tight ring 6, the valve seat 2 form annular groove, first sealing ring between first compression ring 5, the second compression ring 6 respectively
9, the second sealing ring 10 is pressed in respectively in the annular groove, when installing or replacing sealing ring, is only taken the compression ring of respective side
It removes, then is sealed the installation or replacement of circle, it is time saving and energy saving.
In order to further prevent the compressional deformation of sealing ring, the front end notch of the annular groove is formed to be produced for the sealing ring
Raw compressional deformation allows bit space 11.
In order to which the fluid in the clip cavity 13 is discharged, the valve seat 2 is equipped with the valve plate 3 to be connected with the clip cavity 13
Logical the first pressure release runner 12, the second pressure release runner 14, the opening position of the first pressure release runner 12 and the second pressure release runner 14
In ipsilateral, by the first pressure release runner 12 of setting and the second pressure release runner 14, to make the clip cavity 13 penetrate through with extraneous, simultaneously
Keep 13 external and internal pressure of clip cavity identical, avoids forming negative pressure in clip cavity 13, reduce valve opening resistance.
Preferably due to which the valve rod 4 of eccentric-butterfly-valve is set for the eccentric, therefore the valve body 1 is located remotely from the valve rod 4
Side is characterized as the side A, and the valve body 1 is located at and is characterized as the side B, the first pressure release runner 12 close to the side of the valve rod 4
It offers multiple and is located at the side A, with reference to Fig. 2, water (flow) direction is C to will be described when installing the bidirectional bearing double eccentric butterfly valve
Signal of the opening away from C to installation, when Fig. 2 is the flashboard closed state of first pressure release runner 12, the second pressure release runner 14
Figure, the valve plate 3 is located at A side section and contacts with first sealing ring 9 at this time, and sealing surface is gradually expanded, and water flow is along C at this time
To by 3 choked flow of valve plate, as choked flow face is gradually expanded, to generate the positive water hammer of the biggish impact valve plate 3, lead to
The setting of the first pressure release runner 12 is crossed, thus release a part of pressure water by the first pressure release runner 12, thus
The impact force of water hammer is effectively reduced, and disappears with the final plant closure of the valve plate 3, greatly improves valve plate service life.
Preferably, the second pressure release runner 14 is located at below the anchor ring of the valve plate 3, as shown in Figure 1, working as the valve plate
After 3 all close, segment fluid flow can have been stockpiled in the clip cavity 13, fluid can be flowed out with the second pressure release runner 14, from
And improve drain efficiency.
The modifications and changes done with this creation, all belong to the scope of the patents of this creation opinion, and are not limited to embodiment and are taken off
The person of showing.
Claims (9)
1. bidirectional bearing double eccentric butterfly valve, including valve body, it is provided with valve seat in the valve body, is rotatably equipped with valve in the valve seat
Plate, eccentric setting has valve rod on the valve plate, and the valve rod is pierced by the valve body, it is characterised in that: there are two the valve seat is set
Sealing ring, when the valve plate is in close state, two sealing rings, valve seat surround annular clamping cavity between valve plate jointly.
2. bidirectional bearing double eccentric butterfly valve according to claim 1, it is characterised in that: the cross section that the sealing ring is is in
The quoit of U-shaped structure.
3. bidirectional bearing double eccentric butterfly valve according to claim 2, it is characterised in that: in the U-shaped annular groove of the sealing ring
It is provided with gasket ring.
4. bidirectional bearing double eccentric butterfly valve according to claim 3, it is characterised in that: the gasket ring is rubber material.
5. bidirectional bearing double eccentric butterfly valve according to claim 1, it is characterised in that: the two sides of the valve seat are provided with pressure
Tight ring, forms annular groove between the valve seat and the compression ring, two sealing rings are pressed in respectively in the annular groove.
6. bidirectional bearing double eccentric butterfly valve according to claim 5, it is characterised in that: the front end notch shape of the annular groove
At the bit space that allows for generating compressional deformation for the sealing ring.
7. bidirectional bearing double eccentric butterfly valve according to claim 1, it is characterised in that: the valve seat is all provided with the valve plate
There are a first pressure release runner being connected to the clip cavity, the second pressure release runner, the first pressure release runner and the second pressure release runner
Opening is located at ipsilateral.
8. bidirectional bearing double eccentric butterfly valve according to claim 7, it is characterised in that: the first pressure release runner is opened in
Far from the valve rod side.
9. bidirectional bearing double eccentric butterfly valve according to claim 7, it is characterised in that: the second pressure release runner is located at institute
Below the anchor ring for stating valve plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910620650.9A CN110274035A (en) | 2019-07-10 | 2019-07-10 | Bidirectional bearing double eccentric butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910620650.9A CN110274035A (en) | 2019-07-10 | 2019-07-10 | Bidirectional bearing double eccentric butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110274035A true CN110274035A (en) | 2019-09-24 |
Family
ID=67963080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910620650.9A Pending CN110274035A (en) | 2019-07-10 | 2019-07-10 | Bidirectional bearing double eccentric butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110274035A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114233874A (en) * | 2021-12-22 | 2022-03-25 | 正南阀门(浙江)有限公司 | Mute butterfly valve capable of reducing impact force |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0332845Y2 (en) * | 1987-11-18 | 1991-07-11 | ||
| CN1773150A (en) * | 2005-11-08 | 2006-05-17 | 金志渊 | Floating adjustable bidirectional metal hard-sealing butterfly valve |
| CN201359096Y (en) * | 2009-03-16 | 2009-12-09 | 钟汉光 | Fluid pressure sealing butterfly valve |
| CN202493692U (en) * | 2012-02-10 | 2012-10-17 | 鞍山拜尔自控有限公司 | Dual-plate dual-seat two-way elastic metal hard seal butterfly valve |
| CN203703161U (en) * | 2013-12-30 | 2014-07-09 | 宁波市天基隆智控技术有限公司 | Laborsaving butterfly valve |
| CN207213205U (en) * | 2017-08-30 | 2018-04-10 | 上海欧特莱阀门机械有限公司 | A kind of bidirectional bearing soft sealing butterfly valve |
| CN208041161U (en) * | 2018-02-12 | 2018-11-02 | 无锡智能自控工程股份有限公司 | Three eccentric two-way sealed butterfly valve |
-
2019
- 2019-07-10 CN CN201910620650.9A patent/CN110274035A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0332845Y2 (en) * | 1987-11-18 | 1991-07-11 | ||
| CN1773150A (en) * | 2005-11-08 | 2006-05-17 | 金志渊 | Floating adjustable bidirectional metal hard-sealing butterfly valve |
| CN201359096Y (en) * | 2009-03-16 | 2009-12-09 | 钟汉光 | Fluid pressure sealing butterfly valve |
| CN202493692U (en) * | 2012-02-10 | 2012-10-17 | 鞍山拜尔自控有限公司 | Dual-plate dual-seat two-way elastic metal hard seal butterfly valve |
| CN203703161U (en) * | 2013-12-30 | 2014-07-09 | 宁波市天基隆智控技术有限公司 | Laborsaving butterfly valve |
| CN207213205U (en) * | 2017-08-30 | 2018-04-10 | 上海欧特莱阀门机械有限公司 | A kind of bidirectional bearing soft sealing butterfly valve |
| CN208041161U (en) * | 2018-02-12 | 2018-11-02 | 无锡智能自控工程股份有限公司 | Three eccentric two-way sealed butterfly valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114233874A (en) * | 2021-12-22 | 2022-03-25 | 正南阀门(浙江)有限公司 | Mute butterfly valve capable of reducing impact force |
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Legal Events
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190924 |