CN204942566U - Butterfly valve and engineering machinery - Google Patents
Butterfly valve and engineering machinery Download PDFInfo
- Publication number
- CN204942566U CN204942566U CN201520705190.7U CN201520705190U CN204942566U CN 204942566 U CN204942566 U CN 204942566U CN 201520705190 U CN201520705190 U CN 201520705190U CN 204942566 U CN204942566 U CN 204942566U
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- China
- Prior art keywords
- valve
- board assembly
- butterfly valve
- flexible seals
- groove
- 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.)
- Withdrawn - After Issue
Links
- 238000007789 sealing Methods 0.000 claims abstract description 25
- 230000000694 effects Effects 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 7
- 239000000463 material Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram 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
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 230000000391 smoking effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
The utility model relates to engineering machinery field, disclose a kind of butterfly valve and engineering machinery, this butterfly valve comprises valve board assembly and valve component, this valve board assembly is arranged on the valve port of this valve component by running shaft, described valve board assembly can rotate relative to described valve component, wherein, the periphery of described valve board assembly is provided with at least in part flexible seals (1), this flexible seals (1) can coordinate hermetically with between the inwall of described valve port.The sealing effect that flexible seals of the present utility model can solve the poor and easy distortion of the rigidity of valve board assembly own and cause is not enough.By technique scheme, this flexible seals can ensure good sealing when distortion to a certain degree appears in valve board assembly by the pressure of sealed medium, and not only structure is simple, and sealing effect is better, and cost is low.
Description
Technical field
The utility model relates to engineering machinery field, particularly, relates to a kind of butterfly valve and engineering machinery.
Background technique
Butterfly valve is a kind of equipment power source industrial system smoke wind pipes such as thermal power plant applied widely, and be mainly used in closing the flowing of wind medium of giving up smoking, the sealing of baffle plate affects Economy and the environmental protection of equipment.
Existing butterfly valve many employings contact seal, due to the rigidity deficiency of baffle plate own, be easily out of shape, the effect of contact seal is undesirable.Existing butterfly valve reduces distortion by increasing rigidity usually, but causes equipment heavy, and investment strengthens, and in-site installation and maintenance extremely inconvenient.
Model utility content
The purpose of this utility model is to provide a kind of butterfly valve, and this butterfly valve can realize better sealing effect.
To achieve these goals, the utility model provides a kind of butterfly valve, this butterfly valve comprises valve board assembly and valve component, this valve board assembly is arranged on the valve port of this valve component by running shaft, described valve board assembly can rotate relative to described valve component, wherein, the periphery of described valve board assembly is provided with flexible seals at least in part, this flexible seals can coordinate hermetically with between the inwall of described valve port.
Preferably, described valve board assembly comprises main part and sealed department, and sealing portion is arranged on the radial outside of this main part, and described flexible seals is arranged on described sealed department.
Preferably, described sealed department is provided with towards the groove of the radial outside opening of described valve board assembly, described flexible seals is arranged in this groove.
Preferably, the surface of the bottom portion of groove of described sealed department is provided with groove, the sidewall of the groove of described sealed department is provided with the vent running through described sidewall, described groove is communicated with described vent at least in part.
Preferably, described vent is arranged on the side of described valve board assembly towards sealed medium.
Preferably, the inwall of the valve port of described valve component is provided with limiting stopper, described valve board assembly can cooperatively interact with described limiting stopper and make described butterfly valve be in closed state.
Preferably, described butterfly valve also comprises drive unit, and this drive unit can drive described running shaft rotate and then drive described valve board assembly to rotate.
Another object of the present utility model is to provide a kind of engineering machinery, and wherein, this project machinery comprises butterfly valve described in the utility model.
The sealing effect that flexible seals of the present utility model can solve the poor and easy distortion of the rigidity of valve board assembly own and cause is not enough.By technique scheme, this flexible seals can ensure good sealing when distortion to a certain degree appears in valve board assembly by the pressure of sealed medium, and not only structure is simple, and sealing effect is better, and cost is low.
Other features and advantages of the utility model are described in detail in embodiment part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide further understanding of the present utility model, and forms a part for specification, is used from explanation the utility model, but does not form restriction of the present utility model with embodiment one below.In the accompanying drawings:
Fig. 1 is the schematic diagram of the butterfly valve according to the utility model preferred implementation;
Fig. 2 is the sectional view of the butterfly valve according to the utility model preferred implementation, and wherein butterfly valve is in open mode;
Fig. 3 is the sectional view of the butterfly valve according to the utility model preferred implementation, and wherein butterfly valve is in closed state;
Fig. 4 is the zoomed-in view irising out part in Fig. 3.
Description of reference numerals
1 flexible seals; 2 main parts; 3 sealed departments; 4 grooves; 5 vents; 6 limiting stoppers; 7 drive units.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.Should be understood that, embodiment described herein, only for instruction and explanation of the utility model, is not limited to the utility model.
In the utility model, when not doing contrary explanation, the noun of locality of use suitably should be understood in conjunction with the direction in the direction shown in Figure of description or actual use.
The utility model provides a kind of butterfly valve, this butterfly valve comprises valve board assembly and valve component, this valve board assembly is arranged on the valve port of this valve component by running shaft, described valve board assembly can rotate relative to described valve component, wherein, the periphery of described valve board assembly is provided with flexible seals 1 at least in part, and this flexible seals 1 can coordinate hermetically with between the inwall of described valve port.
By technique scheme, butterfly valve of the present utility model utilizes flexible seals 1 to make up the poor sealing caused due to valve board assembly distortion.Wherein this flexible seals 1 can be arranged on the position that poor sealing easily occurs as required, or can arrange on the whole periphery of valve board assembly.
Normally, valve port on the valve component of butterfly valve is circular, valve board assembly is also formed as corresponding circle, running shaft passes this valve board assembly and valve component along the diametric(al) of valve board assembly and valve port, and valve board assembly can be driven jointly to rotate to move relative to valve component, thus control butterfly valve is in open mode or closed state.That is, when valve board assembly is in the state coordinated hermetically between periphery and the inwall of valve port, this butterfly valve is in closed state; When valve board assembly relative to valve component rotate thus make sealed medium can from the gap between valve board assembly and valve component by time, this butterfly valve is in open mode.
Particularly, this flexible seals 1 can adopt the material that in prior art, any one is suitable for, and can not affect this and relatively rotate in the process that can rotate relative to valve component at valve board assembly, or little as far as possible on this impact relatively rotated.
In addition, herein said flexible seals 1 can and the inwall of valve port between coordinate hermetically, wherein " cooperation " comprise conventional sealing with contacting with each other, or between this flexible seals and inwall of valve port, be formed as shape or the structure of coupling mutually, thus realize sealing effect.
The sealing effect that flexible seals of the present utility model can solve the poor and easy distortion of the rigidity of valve board assembly own and cause is not enough.By technique scheme, this flexible seals can ensure good sealing when distortion to a certain degree appears in valve board assembly, and not only structure is simple, and sealing effect is better, and cost is low.
Preferably, described valve board assembly comprises main part 2 and sealed department 3, and sealing portion 3 is arranged on the radial outside of this main part 2, and described flexible seals 1 is arranged on described sealed department 3.
In the preferred embodiment, running shaft is arranged on main part 2, and this main part 2 and sealed department 3 can for the structures be fixedly connected with by the mode such as such as to weld, or this main part 2 and sealed department 3 also can form.
In preferred implementation as shown in Figure 2, this main part 2 is formed as circular plate, and sealing portion 3 is formed as annular plate, and the annular plate in sealing portion 3 is arranged on the radial outside of the circular plate of main part 2.
Preferably, described sealed department 3 is provided with towards the groove of the radial outside opening of described valve board assembly, described flexible seals 1 is arranged in this groove.That is, the opening of this groove is towards the inwall of the valve port of valve component, the flexible seals 1 therefore in this groove can and the inwall of valve port between coordinate hermetically.
Preferably, the surface of the bottom portion of groove of described sealed department 3 is provided with groove 4, the sidewall of the groove of described sealed department 3 is provided with the vent 5 running through described sidewall, described groove 4 is communicated with described vent 5 at least in part.
In the preferred embodiment, provide a kind of preferred sealing configuration, wherein, the groove 4 that the surface of the bottom portion of groove of sealed department 3 is arranged can be set to any suitable shape and structure, and also can being set to of this groove 4 is mutual disconnected multiple, wherein at least part of groove 4 is communicated with vent 5, thus is communicated with the external world of groove, and this vent 5 also can be set to multiple.Preferably, described vent 5 is arranged on the side of described valve board assembly towards sealed medium.Like this, sealed medium (high-pressure medium) just can enter at least part of groove 4 from vent 5, and apply radially outer pressure from groove 4 to flexible seals 1, to make to coordinate hermetically between this flexible seals 1 and inwall of valve port.
For the valve component of butterfly valve of the present utility model, preferably, the inwall of the valve port of described valve component is provided with limiting stopper 6, described valve board assembly can cooperatively interact with described limiting stopper 6 and make described butterfly valve be in closed state.
Above-mentioned closed state is " accurately " closed state, and namely butterfly valve is in completely closed and medium cannot by the state of butterfly valve.This limiting stopper 6 is preferably multiple, thus valve board assembly can be fixed relative to the position of valve component at closed state.This limiting stopper 6 is preferably arranged symmetrically.As in Figure 2-4, this limiting stopper 6 can comprise block and projection, and when valve board assembly rotates to closed state relative to valve component, this valve board assembly contacts with the projection of limiting stopper 6.
Preferably, described butterfly valve also comprises drive unit 7, and this drive unit 7 can drive described running shaft rotate and then drive described valve board assembly to rotate.This drive unit 7 is connected with running shaft thus driven rotary axle rotates, and this drive unit 7 can be motor etc., and the output shaft of this motor is connected with running shaft.
In use, when valve board assembly is in open mode, medium flows through from the gap of valve board assembly and valve component support butterfly valve of the present utility model, and now flexible seals 1 is contracted in by the elasticity of self in the groove of sealed department 3.When valve board assembly rotates to closed state, valve board assembly contacts with limiting stopper 6 and stops the rotation, and now have very little gap between flexible seals 1 and the inwall of valve port, sealed medium flows through with high flow rate at this, and therefore gas pressure is lower; And valve board assembly is when closed state, because the pressure reduction of the sealed medium of valve board assembly both sides increases, sealed medium enters into groove 4 by vent 5, thus the radial direction of flexible seals 1 along valve board assembly is outwards promoted, flexible seals 1 is closely attached on the inwall of valve port, thus realizes good sealing.
Use for the ease of butterfly valve of the present utility model, should make a mark in significant position, the outside of valve component, to ensure correct direction when using.
And the good sealing effect of butterfly valve of the present utility model relies on the pressure reduction of valve board assembly rear butterfly valve both sides in the close position to realize, therefore in certain pressure range, media of both sides pressure reduction is higher, and the sealing effect of butterfly valve of the present utility model is better.Further, all parts of butterfly valve of the present utility model can select the material be suitable for make as required, and preferably can select can resistant to elevated temperatures material, thus makes butterfly valve of the present utility model can be applicable to the higher medium of temperature.
In actual design manufactures, butterfly valve of the present utility model can adopt each several part to process the mode of welding assembly respectively again, not only can realize good sealing effect, and own wt is comparatively light, can also reduce manufacture cost.
The utility model also provides a kind of engineering machinery, and wherein, this project machinery comprises butterfly valve described in the utility model.
Below preferred implementation of the present utility model is described by reference to the accompanying drawings in detail; but; the utility model is not limited to the detail in above-mentioned mode of execution; within the scope of technical conceive of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.
It should be noted that in addition, each concrete technical characteristics described in above-mentioned embodiment, in reconcilable situation, can be combined by any suitable mode, in order to avoid unnecessary repetition, the utility model illustrates no longer separately to various possible compound mode.
In addition, also can carry out combination in any between various different mode of execution of the present utility model, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (8)
1. a butterfly valve, this butterfly valve comprises valve board assembly and valve component, this valve board assembly is arranged on the valve port of this valve component by running shaft, described valve board assembly can rotate relative to described valve component, it is characterized in that, the periphery of described valve board assembly is provided with at least in part flexible seals (1), this flexible seals (1) can coordinate hermetically with between the inwall of described valve port.
2. butterfly valve according to claim 1, it is characterized in that, described valve board assembly comprises main part (2) and sealed department (3), sealing portion (3) is arranged on the radial outside of this main part (2), and described flexible seals (1) is arranged on described sealed department (3).
3. butterfly valve according to claim 2, is characterized in that, described sealed department (3) is provided with towards the groove of the radial outside opening of described valve board assembly, described flexible seals (1) is arranged in this groove.
4. butterfly valve according to claim 3, it is characterized in that, the surface of the bottom portion of groove of described sealed department (3) is provided with groove (4), the sidewall of the groove of described sealed department (3) is provided with the vent (5) running through described sidewall, described groove (4) is communicated with described vent (5) at least in part.
5. butterfly valve according to claim 4, is characterized in that, described vent (5) is arranged on the side of described valve board assembly towards sealed medium.
6. butterfly valve according to claim 1, it is characterized in that, the inwall of the valve port of described valve component is provided with limiting stopper (6), described valve board assembly can cooperatively interact with described limiting stopper (6) and make described butterfly valve be in closed state.
7. butterfly valve according to claim 1, is characterized in that, described butterfly valve also comprises drive unit (7), and this drive unit (7) can drive described running shaft rotate and then drive described valve board assembly to rotate.
8. an engineering machinery, is characterized in that, this project machinery comprises the butterfly valve in the claims 1-7 described in any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520705190.7U CN204942566U (en) | 2015-09-11 | 2015-09-11 | Butterfly valve and engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520705190.7U CN204942566U (en) | 2015-09-11 | 2015-09-11 | Butterfly valve and engineering machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204942566U true CN204942566U (en) | 2016-01-06 |
Family
ID=55009998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520705190.7U Withdrawn - After Issue CN204942566U (en) | 2015-09-11 | 2015-09-11 | Butterfly valve and engineering machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204942566U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114640A (en) * | 2015-09-11 | 2015-12-02 | 中国神华能源股份有限公司 | Butterfly valve and engineering machine |
-
2015
- 2015-09-11 CN CN201520705190.7U patent/CN204942566U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114640A (en) * | 2015-09-11 | 2015-12-02 | 中国神华能源股份有限公司 | Butterfly valve and engineering machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160106 Effective date of abandoning: 20180629 |
|
| AV01 | Patent right actively abandoned |