CN101126458A - Comb-running butterfly valve - Google Patents
Comb-running butterfly valve Download PDFInfo
- Publication number
- CN101126458A CN101126458A CNA200710175410XA CN200710175410A CN101126458A CN 101126458 A CN101126458 A CN 101126458A CN A200710175410X A CNA200710175410X A CN A200710175410XA CN 200710175410 A CN200710175410 A CN 200710175410A CN 101126458 A CN101126458 A CN 101126458A
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- valve
- comb
- valve plate
- short tube
- combing
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Abstract
The invention provides a combing butterfly valve with low vibration, low noise and long service life, which includes a valve body and a valve plate arranged in the valve body, wherein two short tubes are coaxially arranged at both sides of the valve body; a combing grid is arranged near the valve plate and is above the center line of one short tube at the inner side, and the other combing grid is arranged near the valve plate and under the center line of the other short tube at the inner side; the combing grid is composed of a plurality of grizzly bars which are arranged along the axial direction of the short tube. The invention has the positive effects that the valve has two sets of combing grids, when the medium flow passes the cavity between the valve plate and the valve body, the turbulence flow is combed by two sets of combing grids and the direction is made approximate to the original flow direction, so the turbulence is basically avoided, which effectively reduces the vibration, decreases the noise and prolongs the service life of the valve.
Description
Technical field
The present invention 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 inventor 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.
Summary of the invention
The technical problem that solves
The objective of the invention is to overcome above-mentioned the deficiencies in the prior art, 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 present invention adopts following technological scheme:
Comb-running butterfly valve of the present invention 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 of the present invention are: among the present invention, 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 invention;
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 invention;
Fig. 6 is the left view of Fig. 5;
Fig. 7 represents in the comb-running butterfly valve of the present invention that MEDIA FLOW is opened the schematic representation of moment flowing state at valve plate.
Embodiment
Following examples are used to illustrate the present invention, but are not used for limiting the scope of the invention.
Referring to Fig. 2 to Fig. 6.Comb-running butterfly valve of the present invention 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.Among the present invention, 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 invention, 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 invention, according to content disclosed by the invention, some identical, replacement schemes that those of ordinary skill in the art can expect apparently all should fall into the scope of protection of the invention.
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 |
|---|---|---|---|
| CNA200710175410XA CN101126458A (en) | 2007-09-29 | 2007-09-29 | Comb-running butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710175410XA CN101126458A (en) | 2007-09-29 | 2007-09-29 | Comb-running butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101126458A true CN101126458A (en) | 2008-02-20 |
Family
ID=39094551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200710175410XA Pending CN101126458A (en) | 2007-09-29 | 2007-09-29 | Comb-running butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101126458A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595504A (en) * | 2013-11-01 | 2015-05-06 | 华北电力大学 | Comb-shaped pulverized coal balance valve |
| CN109099168A (en) * | 2017-06-21 | 2018-12-28 | 上海弘盛特种阀门制造股份有限公司 | A kind of comb-tooth-type regulating butterfly valve |
| CN111140864A (en) * | 2019-12-27 | 2020-05-12 | 江苏京源环保股份有限公司 | Rake type flue damper |
-
2007
- 2007-09-29 CN CNA200710175410XA patent/CN101126458A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595504A (en) * | 2013-11-01 | 2015-05-06 | 华北电力大学 | Comb-shaped pulverized coal balance valve |
| CN109099168A (en) * | 2017-06-21 | 2018-12-28 | 上海弘盛特种阀门制造股份有限公司 | A kind of comb-tooth-type regulating butterfly valve |
| CN111140864A (en) * | 2019-12-27 | 2020-05-12 | 江苏京源环保股份有限公司 | Rake type flue damper |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |