CN101162053A - Noise reduction gas butterfly valve - Google Patents
Noise reduction gas butterfly valve Download PDFInfo
- Publication number
- CN101162053A CN101162053A CNA2007101777775A CN200710177777A CN101162053A CN 101162053 A CN101162053 A CN 101162053A CN A2007101777775 A CNA2007101777775 A CN A2007101777775A CN 200710177777 A CN200710177777 A CN 200710177777A CN 101162053 A CN101162053 A CN 101162053A
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- China
- Prior art keywords
- cup
- butterfly valve
- rectification
- comb
- valve body
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- 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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- Lift Valve (AREA)
Abstract
The invention provides a sound damping gas butterfly valve for crude gas system of metallurgical industry, comprising a valve body, a rear end of the valve body is fixed with a sound damping pipe which is provided inside with a rectifier cup, wherein, a cup cylinder of the rectifier cup is of a cone shape, the end with a smaller diameter is connected with the cup bottom, while the end with a larger diameter is fixed on the inner wall of the sound damping pipe; the cup cylinder and the cup bottom of the rectifier cup close to the valve body are uniformly distributed with a plurality of rectifier holes. The invention perfectly solves the problems of surge flow, turbulence of flow from headstream, so the surge flow impact noise when gas passes through the valve is greatly reduced. After test, the noise of the sound damping gas butterfly valve of the invention can be effectively controlled within 80 db, which accords with national environmental protection requirements.
Description
Technical field
The present invention relates to a kind of gas butterfly valve, especially a kind of noise cancelling type gas butterfly valve that is used for the system of metallurgy industry raw coke oven gas technology.
Background technique
Gas butterfly valve is the requisite back equipment of control gas flow in the metallurgical ironmaking processes; traditional butterfly valve is extensive use of in existing smelting process; along with country is energy-saving and cost-reducing to smelting industry; improving constantly of environmental protection requirement; iron-smelting process is also constantly perfect; the dedusting of blast furnace gas mode was progressively carrying out the transition to dry method dust by wet dedusting in recent years; blast furnace adopts dry method dust later on because of there not being this road technology of spray cooling; temperature of gas is brought up to 180 degree by 80 original degree; because the hot swollen account of coal gas; same standard state flow worker's attitude flow at high temperature significantly increases; flow velocity by gas butterfly valve just significantly quickens; because butterfly valve structure determines its blocking type regulative mode; coal gas forms turbulent flow and breathes heavily stream at this; and then form strong noise and vibration; surrounding enviroment are produced pollution, and the noise that solves the heavy caliber gas butterfly valve is one of cleaning smelting industry noise source.
At above situation, the inventor utilizes hydromechanical basic principle to start with from combing coal gas turbulent flow through concentrating on studies for a long time, has found the essence of problem, has designed a kind of novel noise cancelling type gas butterfly valve, has thoroughly captured this difficult problem.
Summary of the invention
The technical problem that solves
The objective of the invention is at above-mentioned the deficiencies in the prior art, provide a kind of noise low noise reduction gas butterfly valve.
Technological scheme
For achieving the above object, the present invention adopts following technological scheme:
Noise reduction gas butterfly valve of the present invention, comprise valve body, wherein said valve rear end portion is fixed with hush pipe, be provided with the rectification cup in the hush pipe, the cup tube of rectification cup is tapered, and the less end of diameter connects the cup end, and the end that diameter is bigger is fixed on the described hush pipe inwall, and be positioned near valve body one side, the cup tube and the cup of rectification cup are evenly distributed with some rectification hole at the end.
Comb stream tube in being provided with in the described rectification cup is evenly distributed with some comb discharge orifices on the interior comb stream tube.
Comb stream tube in being provided with between described rectification cup and the interior comb stream tube is evenly distributed with some comb discharge orifices on the middle comb stream tube.
The front-end face of described rectification cup, interior comb stream tube and middle comb stream tube is concordant.
Beneficial effect
The beneficial effect of noise cancelling type gas butterfly valve of the present invention is: owing to be provided with the rectification cup that has some rectification hole in the hush pipe of the present invention, it can be steady with disorderly air-flow combing, thereby weaken noise significantly, reaches the noise elimination effect.
Description of drawings
Fig. 1 is a noise reduction gas butterfly valve External view of the present invention;
The sectional structure schematic representation that Fig. 2 is;
Fig. 3 is along the sectional view of A-A line among Fig. 2.
Embodiment
Following examples are used to illustrate the present invention, but are not used for limiting the scope of the invention.
As shown in Figure 1, 2, 3, noise reduction gas butterfly valve of the present invention, comprise valve body 1, be installed in the valve plate 5 in the valve body 1, portion is fixed with hush pipe 2 (to refer to the end away from valve plate 5) in valve body 1 rear end, is provided with rectification cup 3 in the hush pipe 2, and the cup tube of rectification cup 3 is tapered, the less end of diameter connects the cup end, the end that diameter is bigger is fixed on described hush pipe 2 inwalls, and is positioned near valve body 1 one sides, and the cup tube and the cup of rectification cup 3 are evenly distributed with some rectification hole at the end.Comb stream tube 6 in being provided with in the rectification cup 3.Comb stream tube 4 in being provided with between rectification cup 3 and the interior comb stream tube 6.In be evenly distributed with some comb discharge orifices separately on comb stream tube 6 and the middle comb stream tube 4.Rectification cup 3, interior comb stream tube 6 and middle comb stream tube 4 are linked together by some radial connecting tendons 7, and their front-end face is concordant, can certainly be arrangement straggly.
Among the present invention, under the whole effect of multilayer, multistage comb of rectification cup 3, interior comb stream tube 6 and middle comb stream tube 4, what ideally solved air-flow from the source breathes heavily stream, turbulent problem, makes coal gas flow impact noise by breathing heavily of valve and weakens significantly.The present invention allows turbulent flow become following current by the rectification cup, by the rectification hole on the rectification cup, becomes rill by following current again, allows turbulent flow become following current and rill, and the comb discharge orifice of comb stream tube 6 and middle comb stream tube 4 is further combed the stream effect in adding, and reaches the purpose of noise reduction.After tested, the noise of noise cancelling type gas butterfly valve of the present invention can be controlled in 80 decibels effectively, meets national requirements for environmental protection.
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 (4)
1. noise reduction gas butterfly valve, comprise valve body (1), it is characterized in that described valve body (1) rearward end is fixed with hush pipe (2), be provided with rectification cup (3) in the hush pipe (2), the cup tube of rectification cup (3) is tapered, and the less end of diameter connects the cup end, and the end that diameter is bigger is fixed on described hush pipe (2) inwall, and be positioned near valve body (1) one side, the cup tube and the cup of rectification cup (3) are evenly distributed with some rectification hole at the end.
2. noise reduction gas butterfly valve as claimed in claim 1, comb stream tube (6) in it is characterized in that being provided with in the described rectification cup (3) is evenly distributed with some comb discharge orifices on the interior comb stream tube (6).
3. noise reduction gas butterfly valve as claimed in claim 2, comb stream tube (4) in it is characterized in that being provided with between described rectification cup (3) and the interior comb stream tube (6) is evenly distributed with some comb discharge orifices on the middle comb stream tube (4).
4. noise reduction gas butterfly valve as claimed in claim 3 is characterized in that the front-end face of described rectification cup (3), interior comb stream tube (6) and middle comb stream tin (4) is concordant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101777775A CN101162053A (en) | 2007-11-21 | 2007-11-21 | Noise reduction gas butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101777775A CN101162053A (en) | 2007-11-21 | 2007-11-21 | Noise reduction gas butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101162053A true CN101162053A (en) | 2008-04-16 |
Family
ID=39297021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101777775A Pending CN101162053A (en) | 2007-11-21 | 2007-11-21 | Noise reduction gas butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101162053A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244747A (en) * | 2012-02-08 | 2013-08-14 | 费希尔控制国际公司 | Pressure reducer |
| CN104405897A (en) * | 2014-10-29 | 2015-03-11 | 武汉百耐流体控制设备有限公司 | Noise reducing butterfly valve |
| CN106195429A (en) * | 2015-05-29 | 2016-12-07 | Vag阀门有限公司 | Valve gear |
-
2007
- 2007-11-21 CN CNA2007101777775A patent/CN101162053A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244747A (en) * | 2012-02-08 | 2013-08-14 | 费希尔控制国际公司 | Pressure reducer |
| CN104405897A (en) * | 2014-10-29 | 2015-03-11 | 武汉百耐流体控制设备有限公司 | Noise reducing butterfly valve |
| CN106195429A (en) * | 2015-05-29 | 2016-12-07 | Vag阀门有限公司 | Valve gear |
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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 |