CN201083271Y - Flow combing butterfly valve - Google Patents
Flow combing butterfly valve Download PDFInfo
- Publication number
- CN201083271Y CN201083271Y CNU2007201734597U CN200720173459U CN201083271Y CN 201083271 Y CN201083271 Y CN 201083271Y CN U2007201734597 U CNU2007201734597 U CN U2007201734597U CN 200720173459 U CN200720173459 U CN 200720173459U CN 201083271 Y CN201083271 Y CN 201083271Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve plate
- comb
- combing
- short tube
- 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.)
- Expired - Fee Related
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Abstract
The utility model provides a combing butterfly valve with low vibration, low noise and long service life, which comprises a valve body and a valve plate arranged inside the valve body, wherein two short tubes are respectively and coaxially fixed on two sides of the valve body, a combing grate is arranged on the upper part of the inner axle line of one short tube near the valve plate, another combing grate is arranged on the lower part of the inner axle line of the other short tube near the valve plate, and each grate consists of a plurality of grate bars arranged evenly along the axial direction of each short tube. The utility model has the advantages that: as the utility model is provided with two combing grates, when a medium flow passes through the clearance between the valve plate and the valve body, a formed turbulent flow is converted into a rectilinear flow with a direction equal to the original direction through the combing action of the two combing grates, thereby preventing the turbulent flow from forming fundamentally, consequently reducing vibration and noise effectively, and prolonging the service life of the valve.
Description
Technical field
The utility model relates to a kind of butterfly valve, especially a kind of low vibration, low noise, long comb-running butterfly valve of life-span.
Background technique
As shown in Figure 1, traditional butterfly valve structure generally includes valve body 1 and the valve plate 2 that is rotatably installed in the valve body 1.Its working principle is: the flow that comes control media by the size of rotational valve plate 2 angles.And when the moment that valve plate 2 is opened, originally substantially parallel flow direction is changed by force, and the medium by butterfly valve will form strong turbulent flow and panting like this, thereby produces great vibrations, and is accompanied by strong noise.So, use this traditional butterfly valve as controlling device, strong noise is unavoidable.At above situation, the utility model people mainly starts with from the structure of valve plate through concentrating on studies, and has designed the butterfly valve of low vibration, has fundamentally solved the panting problem of butterfly valve.
The model utility content
The technical problem that solves
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, and a kind of low vibration, low noise, long surge-proof butterfly valve of life-span are provided.
Technological scheme
For achieving the above object, the utility model adopts following technological scheme:
Comb-running butterfly valve described in the utility model comprises valve body and is installed in the interior valve plate of valve body, wherein is fixed with two short tubes with its coaxial arrangement respectively in described valve body both sides; Wherein top, an inboard medial axis of short tube is provided with comb stream grid near the valve plate position, is provided with comb stream grid near the valve plate position below the inboard medial axis of another root short tube; Described comb stream grid are made up of the some grizzly bars of axially evenly arranging along short tube.
Height near one section of valve plate on the described grizzly bar is gradual change, and by diminishing gradually away from valve plate one side to close valve plate one side height.
The length of described grizzly bar is 1/3～1 times of short tube length.
The shape of cross section of described grizzly bar is trapezoidal or triangle or semicircle.
Beneficial effect
The advantage and the good effect of comb-running butterfly valve described in the utility model are: in the utility model, owing to be provided with two groups of comb stream grid, when the space of opening between MEDIA FLOW is by valve plate and valve body is passed through, its formed turbulent flow is through the combing of two groups of comb stream grid, form the linear flow consistent with original direction, thus turbulent formation fundamentally avoided, so alleviated vibration effectively, reduce noise, prolonged the working life of valve.
Description of drawings
Fig. 1 is the structural representation of traditional butterfly valve, and the MEDIA FLOW of wherein expressing is opened the state of moment at valve plate;
Fig. 2 is the structural representation of comb-running butterfly valve of the present utility model;
Fig. 3 is the A-A view of Fig. 2;
Fig. 4 is the left view of Fig. 3;
Fig. 5 represents the structural representation of the comb stream grid of the another kind of structure in the comb-running butterfly valve of the present utility model;
Fig. 6 is the left view of Fig. 5;
Fig. 7 represents in the comb-running butterfly valve of the present utility model that MEDIA FLOW is opened the schematic representation of moment flowing state at valve plate.
Embodiment
Following examples are used to illustrate the utility model, but are not used for limiting scope of the present utility model.
Referring to Fig. 2 to Fig. 6.Comb-running butterfly valve of the present utility model comprises valve body 1 and is installed in valve plate 2 in the valve body 1 and the driving mechanism that is used for rotational valve plate 2.Be fixed with two short tubes 3 respectively with its coaxial arrangement in valve body 1 both sides.Wherein top, an inboard medial axis of short tube is provided with comb stream grid near valve plate 2 positions, is provided with comb stream grid near valve plate 2 positions below the inboard medial axis of another root short tube.The effect of comb stream grid is the MEDIA FLOW by the valve plate edge is carded to linear flow, with the turbulent flow of elimination generation, thereby alleviates vibration, reduces noise.Described comb stream grid are made up of the some grizzly bars of axially evenly arranging along short tube 34.The shape of cross section of grizzly bar 4 can be trapezoidal (seeing Fig. 3, Fig. 4), or triangle (seeing Fig. 5, Fig. 6), also can be that semicircle waits other shapes.Shorter when the length of comb stream grid, for example have only short tube length 1/3 o'clock, it can be arranged on the position far away slightly apart from valve plate 2, but in order to play the effect of better combing MEDIA FLOW, it should be arranged on as far as possible near valve plate 2 positions.At this moment, to interfere with comb stream grid during valve plate 2 in order preventing to open, can to make on the grizzly bar 4 one section highly gradient near valve plate 2, promptly this section grizzly bar by away from valve plate 2 one sides to diminishing gradually near valve plate 2 one side height.The length that wherein is positioned at the grizzly bar of symmetry axis position and valve plate 2 interference portions is the longest, and by symmetry axis to both sides, the length of grizzly bar and valve plate 2 interference portions can shorten gradually, so the highly gradient of some grizzly bars 4 part just forms circular shape in the initial position away from valve plate 2.Through the design of such highly gradient, comb stream grid can be installed to the position near as far as possible apart from valve plate 2.In the utility model, the length of grizzly bar 4 can be 1/3 of short tube length, and the radius of this length and valve plate is suitable; In order to strengthen combing effect, the length of grizzly bar 4 also can be long, roughly with the valve plate diameter quite or greater than the valve plate diameter, even can be along the elongated grizzly bar of the length global design of short tube.
As shown in Figure 7, comb-running butterfly valve of the present utility model, open the moment of valve plate 2 when adjusting driving mechanism, MEDIA FLOW is passed through by the space of opening between valve plate and the valve body, and the turbulent flow that form this moment forms the linear flow consistent with original direction through the combing of two groups of comb stream grid, so turbulent flow, panting phenomenon from basic elimination, alleviate vibration effectively, reduced noise, prolonged the working life of valve.
More than be preferred forms of the present utility model, according to the disclosed content of the utility model, some identical, replacement schemes that those of ordinary skill in the art can expect apparently all should fall into the scope that the utility model is protected.
Claims (5)
1. comb-running butterfly valve comprises valve body (1) and is installed in valve plate (2) in the valve body (1), it is characterized in that being fixed with respectively in described valve body (1) both sides two short tubes (3) with its coaxial arrangement; Wherein top, an inboard medial axis of short tube is provided with comb stream grid near valve plate (2) position, is provided with comb stream grid near valve plate (2) position below the inboard medial axis of another root short tube; Described comb stream grid are made up of the some grizzly bars of axially evenly arranging along short tube (3) (4).
2. comb-running butterfly valve as claimed in claim 1 is characterized in that the height that described grizzly bar (4) is gone up near (2) one sections of valve plates is gradual change, and by diminishing gradually away from valve plate (2) one sides to close valve plate (2) one side height.
3. comb-running butterfly valve as claimed in claim 1 or 2, the length that it is characterized in that described grizzly bar (4) are 1/3～1 times of short tube length.
4. comb-running butterfly valve as claimed in claim 1 or 2, the shape of cross section that it is characterized in that described grizzly bar (4) is trapezoidal or triangle or semicircle.
5. comb-running butterfly valve as claimed in claim 3, the shape of cross section that it is characterized in that described grizzly bar (4) is trapezoidal or triangle or semicircle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201734597U CN201083271Y (en) | 2007-09-29 | 2007-09-29 | Flow combing butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201734597U CN201083271Y (en) | 2007-09-29 | 2007-09-29 | Flow combing butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201083271Y true CN201083271Y (en) | 2008-07-09 |
Family
ID=39625738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201734597U Expired - Fee Related CN201083271Y (en) | 2007-09-29 | 2007-09-29 | Flow combing butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201083271Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101929553A (en) * | 2010-09-16 | 2010-12-29 | 杭州哲达科技股份有限公司 | Equal-percent butterfly valve and control method thereof |
-
2007
- 2007-09-29 CN CNU2007201734597U patent/CN201083271Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101929553A (en) * | 2010-09-16 | 2010-12-29 | 杭州哲达科技股份有限公司 | Equal-percent butterfly valve and control method thereof |
| CN101929553B (en) * | 2010-09-16 | 2012-11-21 | 杭州哲达科技股份有限公司 | Equal-percent butterfly valve and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080709 Termination date: 20150929 |
|
| EXPY | Termination of patent right or utility model |