CN105114640B - Butterfly valve and engineering machinery - Google Patents
Butterfly valve and engineering machinery Download PDFInfo
- Publication number
- CN105114640B CN105114640B CN201510579435.0A CN201510579435A CN105114640B CN 105114640 B CN105114640 B CN 105114640B CN 201510579435 A CN201510579435 A CN 201510579435A CN 105114640 B CN105114640 B CN 105114640B
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- CN
- China
- Prior art keywords
- valve
- board assembly
- sealing
- groove
- component
- 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.)
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 39
- 230000000694 effects Effects 0.000 abstract description 10
- 239000000463 material Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
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
- F16K1/2261—Shaping or arrangements of the sealing the sealing being arranged on the valve 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0209—Check valves or pivoted valves
- F16K27/0218—Butterfly valves
Abstract
The present invention relates to engineering machinery fields, disclose a kind of butterfly valve and engineering machinery, the butterfly valve includes valve board assembly and valve component, the valve board assembly is mounted on by rotary shaft on the valve port of the valve component, the valve board assembly can be rotated relative to the valve component, wherein, flexible seals (1) are provided on the periphery of the valve board assembly at least partly, which can sealingly engage between the inner wall of the valve port.The flexible seals of the present invention can solve valve board assembly, and rigidity is poor in itself and sealing effect is insufficient caused by being easily deformed.Through the above technical solutions, the flexible seals can ensure good sealing by the pressure of sealed medium when a degree of deformation occurs in valve board assembly, it is not only simple in structure, and sealing effect is preferable, it is at low cost.
Description
Technical field
The present invention relates to engineering machinery fields, and in particular, to a kind of butterfly valve and engineering machinery.
Background technology
Butterfly valve is that a kind of general equipment is widely used on the power sources industrial system smoke wind pipe such as thermal power plant, main
It is used to turn off the flowing of cigarette wind medium, the leakproofness of baffle affects economy and the environmental protection of equipment.
Existing butterfly valve is mostly using contact seal, and due to baffle, rigidity is insufficient in itself, is easily deformed, contact seal
Effect is undesirable.Existing butterfly valve usually reduces deformation by increasing rigidity, but causes equipment heavy, and investment increases, and
In-site installation and maintenance are extremely inconvenient.
Invention content
The object of the present invention is to provide a kind of butterfly valve, which can realize better seal effect.
To achieve these goals, the present invention provides a kind of butterfly valve, which includes valve board assembly and valve component, the valve
Plate component is mounted on by rotary shaft on the valve port of the valve component, and the valve board assembly can be revolved relative to the valve component
Turn, wherein, be provided with flexible seals at least partly on the periphery of the valve board assembly, the flexible seals can with it is described
It is sealingly engaged between the inner wall of valve port.
Preferably, the valve board assembly includes main part and sealing, and the diameter which is arranged on the main part is outside
Side, the flexible seals are arranged on the sealing.
Preferably, the groove of the radial outside opening towards the valve board assembly is provided on the sealing, it is described soft
Property sealing element is arranged in the groove.
Preferably, groove, the side wall of the groove of the sealing are provided on the surface of the bottom portion of groove of the sealing
On be provided through the venthole of the side wall, the groove connects at least partly with the venthole.
Preferably, the venthole is arranged on side of the valve board assembly towards sealed medium.
Preferably, be provided with limited block on the inner wall of the valve port of the valve component, the valve board assembly can with it is described
Limited block cooperates and the butterfly valve is made to be in closed state.
Preferably, the butterfly valve further includes driving device, which can drive the rotary shaft rotation and then band
The dynamic valve board assembly rotation.
It is a further object to provide a kind of engineering machinery, wherein, which includes of the present invention
Butterfly valve.
The flexible seals of the present invention can solve valve board assembly, and rigidity is poor in itself and seals caused by being easily deformed
It is not sufficiently effective.Through the above technical solutions, the flexible seals can pass through when a degree of deformation occurs in valve board assembly
The pressure of sealed medium ensures good sealing, is not only simple in structure, and sealing effect is preferable, at low cost.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Description of the drawings
Attached drawing is to be used to provide further understanding of the present invention, and a part for constitution instruction, with following tool
Body embodiment is used to explain the present invention, but be not construed as limiting the invention together.In the accompanying drawings：
Fig. 1 is the schematic diagram of butterfly valve according to the preferred embodiment of the present invention；
Fig. 2 is the sectional view of butterfly valve according to the preferred embodiment of the present invention, and wherein butterfly valve is in opening state；
Fig. 3 is the sectional view of butterfly valve according to the preferred embodiment of the present invention, and wherein butterfly valve is in closed state；
Fig. 4 is the enlarged view that part is irised out in Fig. 3.
Reference sign
1 flexible seals；2 main parts；3 sealings；4 grooves；5 ventholes；6 limited blocks；7 driving devices.
Specific embodiment
The specific embodiment of the present invention is described in detail below in conjunction with attached drawing.It should be understood that this place is retouched
The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
In the present invention, in the case where not making to illustrate on the contrary, the noun of locality used should be with reference to shown in Figure of description
Direction or actual use in direction suitably understand.
The present invention provides a kind of butterfly valve, which includes valve board assembly and valve component, which passes through rotary shaft
On the valve port of the valve component, the valve board assembly can be rotated relative to the valve component, wherein, the valve plate
Flexible seals 1 are provided on the periphery of component at least partly, which can be between the inner wall of the valve port
It sealingly engages.
Through the above technical solutions, the present invention butterfly valve using flexible seals 1 come make up due to valve board assembly deformation and
Caused poor sealing.Wherein the flexible seals 1 can be arranged as required to easily occur poor sealing position or
It can be set on the entire periphery of valve board assembly.
Normally, the valve port on the valve component of butterfly valve is circle, and valve board assembly is again formed as corresponding circle, is rotated
Axis passes through the valve board assembly and valve component along the diametric(al) of valve board assembly and valve port, and valve board assembly can be driven to revolve jointly
Turn to be moved relative to valve component, so as to which butterfly valve be controlled to be in opening state or closed state.That is, when valve board assembly is in week
During the state sealingly engaged between edge and the inner wall of valve port, which is in closed state；When valve board assembly is relative to valve body
Component rotate so that sealed medium can be between valve board assembly and valve component gap by when, which is in
Opening state.
Specifically, which may be used the material that any one is applicable in the prior art, can be in valve plate group
Part does not interfere with the relative rotation or influence to the relative rotation as far as possible during being rotated relative to valve component
It is small.
In addition, flexible seals 1 described herein can sealingly engage between the inner wall of valve port, wherein " cooperation " wraps
Include it is conventional seal with contacting with each other or the flexible seals and the inner wall of valve port between be formed as the shape being mutually matched or
Structure, so as to fulfill sealing effect.
The flexible seals of the present invention can solve valve board assembly, and rigidity is poor in itself and seals caused by being easily deformed
It is not sufficiently effective.Through the above technical solutions, the flexible seals can ensure when a degree of deformation occurs in valve board assembly
Good sealing, is not only simple in structure, and sealing effect is preferable, at low cost.
Preferably, the valve board assembly includes main part 2 and sealing 3, which is arranged on the diameter of the main part 2
Outward, the flexible seals 1 are arranged on the sealing 3.
In the preferred embodiment, rotary shaft is mounted on main part 2, and the main part 2 and sealing 3 can be to pass through
Such as the structure that is fixedly connected of the modes such as welding or the main part 2 and sealing 3 can also be integrally formed.
In preferred embodiment as shown in Figure 2, which is formed as circular plate, which is formed as ring
Shape plate, and the annular plate of the sealing 3 is arranged on the radial outside of the circular plate of main part 2.
Preferably, the groove of the radial outside opening towards the valve board assembly is provided on the sealing 3, it is described soft
Property sealing element 1 is arranged in the groove.That is, inner wall of the opening of the groove towards the valve port of valve component, therefore in the groove
Flexible seals 1 can be sealingly engaged between the inner wall of valve port.
Preferably, groove 4, the side of the groove of the sealing 3 are provided on the surface of the bottom portion of groove of the sealing 3
The venthole 5 of the side wall is provided through on wall, the groove 4 connects at least partly with the venthole 5.
In the preferred embodiment, a kind of preferred sealing structure is provided, wherein, the bottom portion of groove of sealing 3
The groove 4 set on surface could be provided as any suitable shape and structure, and the groove 4 may be set to be mutually
Disconnected multiple, the groove 4 of wherein at least part is connected with venthole 5, so as to which the external world with groove connects, the venthole 5
It may be set to be multiple.Preferably, the venthole 5 is arranged on side of the valve board assembly towards sealed medium.This
Sample, sealed medium (high-pressure medium) can just enter at least part of groove 4 from venthole 5, and from groove 4 to soft
Property sealing element 1 applies radially outer pressure, so as to be sealingly engaged between the flexible seals 1 and the inner wall of valve port.
For the valve component of the butterfly valve of the present invention, it is preferable that set on the inner wall of the valve port of the valve component limited
Position block 6, the valve board assembly can cooperate with the limited block 6 and the butterfly valve made to be in closed state.
Above-mentioned closed state is " accurate " closed state, i.e. butterfly valve is in being closed completely and medium can not be by butterfly valve
State.The limited block 6 is preferably several, so that valve board assembly can be consolidated relative to valve component in the position of closed state
It is fixed.The limited block 6 is preferably symmetrically arranged.As in Figure 2-4, which can include block and protrusion, when valve plate group
When part rotates to closed state relative to valve component, which is in contact with the protrusion of limited block 6.
Preferably, the butterfly valve further includes driving device 7, the driving device 7 can drive the rotary shaft rotate and then
The valve board assembly is driven to rotate.For the driving device 7 with rotation axis connection so as to which rotary shaft be driven to rotate, which can
Think motor etc., output shaft and the rotation axis connection of the motor.
The butterfly valve of the present invention in use, when valve board assembly in the open state, medium is from valve board assembly and valve
The gap of body assembly support is flowed through, and flexible seals 1 are contracted in by the elasticity of itself in the groove of sealing 3 at this time.When
When valve board assembly rotates to closed state, valve board assembly is in contact with limited block 6 and is stopped rotating, at this time flexible seals 1 with
There is the gap of very little between the inner wall of valve port, sealed medium is flowed through herein with high flow rate, therefore gas pressure is relatively low；And valve plate
For component in closed state, due to the pressure difference increase of the sealed medium of valve board assembly both sides, sealed medium passes through venthole 5
It enters in groove 4, so as to which flexible seals 1 be pushed out along the radial direction of valve board assembly so that flexible seals 1 are tight
It is closely connected to be attached on the inner wall of valve port, so as to fulfill good sealing.
It uses for the ease of the butterfly valve of the present invention, should make a mark in the significant position in the outside of valve component, to protect
Correct direction when card uses.
And the good sealing effect of the butterfly valve of the present invention is by valve board assembly rear butterfly valve both sides in the close position
Pressure difference realizes, therefore that in certain pressure limit media of both sides pressure difference is higher, the sealing effect of butterfly valve of the invention is got over
It is good.Also, all parts of the butterfly valve of the present invention can select applicable material to be made as needed, can preferably select energy
Enough heat safe materials, so that the butterfly valve of the present invention can be suitable for the higher medium of temperature.
In actual design manufacture, the mode that each section processes again welding assembly respectively may be used in butterfly valve of the invention,
It is not only able to realize good sealing effect, and own wt is lighter, additionally it is possible to reduce manufacture cost.
The present invention also provides a kind of engineering machinery, wherein, which includes butterfly valve of the present invention.
The preferred embodiment of the present invention is described in detail above in association with attached drawing, still, the present invention is not limited to above-mentioned realities
The detail in mode is applied, within the scope of the technical concept of the present invention, a variety of letters can be carried out to technical scheme of the present invention
Monotropic type, these simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to it is various can
The combination of energy no longer separately illustrates.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (4)
1. a kind of butterfly valve, which includes valve board assembly and valve component, which is mounted on the valve body by rotary shaft
On the valve port of component, the valve board assembly can be rotated relative to the valve component, which is characterized in that the valve board assembly
Flexible seals (1) are provided on periphery at least partly, which can be close between the inner wall of the valve port
Feud coordinates, and the valve board assembly includes main part (2) and sealing (3), which is arranged on the main part (2)
Radial outside, the flexible seals (1) are arranged on the sealing (3), are provided on the sealing (3) described in
The groove of the radial outside opening of valve board assembly, the flexible seals (1) are arranged in the groove, the sealing (3)
Groove (4) is provided on the surface of bottom portion of groove, the side wall is provided through on the side wall of the groove of the sealing (3)
Venthole (5), the groove (4) connect at least partly with the venthole (5), and the venthole (5) is arranged on the valve
Plate component is towards the side of sealed medium.
2. butterfly valve according to claim 1, which is characterized in that limiting is provided on the inner wall of the valve port of the valve component
Block (6), the valve board assembly can cooperate with the limited block (6) and the butterfly valve made to be in closed state.
3. butterfly valve according to claim 1, which is characterized in that the butterfly valve further includes driving device (7), the driving device
(7) rotary shaft can be driven to rotate and then the valve board assembly is driven to rotate.
4. a kind of engineering machinery, which is characterized in that the engineering machinery includes the butterfly described in any one in the claims 1-3
Valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510579435.0A CN105114640B (en) | 2015-09-11 | 2015-09-11 | Butterfly valve and engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510579435.0A CN105114640B (en) | 2015-09-11 | 2015-09-11 | Butterfly valve and engineering machinery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105114640A CN105114640A (en) | 2015-12-02 |
| CN105114640B true CN105114640B (en) | 2018-06-29 |
Family
ID=54662694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510579435.0A Active CN105114640B (en) | 2015-09-11 | 2015-09-11 | Butterfly valve and engineering machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105114640B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402412A (en) * | 2016-11-21 | 2017-02-15 | 河钢股份有限公司承德分公司 | Cutting device for medium of dust removal pipeline and manufacturing method of cutting device |
| CN113102432B (en) * | 2021-04-13 | 2021-12-14 | 博兰特智慧实验室(江苏)有限公司 | Intelligent fume hood system and control method thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE7008901U (en) * | 1969-04-10 | 1970-07-09 | Okamura Valve Mfg Co Ltd | THROTTLE FLAP VALVE. |
| CN2219401Y (en) * | 1995-04-08 | 1996-02-07 | 张重辉 | Medium pressure-filling sealing butterfly valve |
| CN2908934Y (en) * | 2006-05-23 | 2007-06-06 | 上海艾维科阀门有限公司 | Sealing structure for two eccentric butterfly valve |
| CN101451617A (en) * | 2007-12-07 | 2009-06-10 | 江苏神通阀门股份有限公司 | Two-way sealing butterfly valve |
| CN201836405U (en) * | 2010-09-10 | 2011-05-18 | 河北省电力研究院 | Retractable flexible sealed butterfly valve |
| CN204942566U (en) * | 2015-09-11 | 2016-01-06 | 中国神华能源股份有限公司 | Butterfly valve and engineering machinery |
-
2015
- 2015-09-11 CN CN201510579435.0A patent/CN105114640B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105114640A (en) | 2015-12-02 |
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