CN101306407A - Secondary flow cyclone dust extractor - Google Patents
Secondary flow cyclone dust extractor Download PDFInfo
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- CN101306407A CN101306407A CNA2007101080395A CN200710108039A CN101306407A CN 101306407 A CN101306407 A CN 101306407A CN A2007101080395 A CNA2007101080395 A CN A2007101080395A CN 200710108039 A CN200710108039 A CN 200710108039A CN 101306407 A CN101306407 A CN 101306407A
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- cyclone
- dust collector
- dust
- cyclone dust
- air
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Abstract
The invention presents a secondary flow cyclone dedusting theory, and achieves the purpose of improving the dedusting efficiency of a dust collector cyclone on the basis of the dedusting theory of the original dust collector cyclone by introducing dust-free secondary fresh air into the proper part of the dust collector cyclone to enter the dust collector cyclone, and adopting the introduced secondary fresh air to change and control the flow field distribution of the dust collector cyclone. The invention provides a dust collector cyclone structure with the secondary flow. On the basis of the original common dust collector cyclone, an interlay sleeve (3) is added on the outer side of an air outlet pipe, dust-free fresh air is introduced through a secondary air inlet (4), and the fresh air is discharged from the interlay sleeve in a cyclone cylinder to get into the cyclone cylinder, the original flow field distribution can be changed through changing the volume of the fresh air, and thereby improving the dedusting efficiency. The dust collector cyclone structure comprises the cyclone cylinder (1), an air inlet pipe (2), the interlay sleeve (3), the secondary air inlet (4), the air outlet pipe (5), an interlay sleeve transitional connector (6), a cone (7) and a dust discharging opening (8).
Description
Technical field
What the present invention relates to is environmental protection dedusting technology field and Hydrodynamics Theory, secondary flow cyclone dust extractor is based on hydromechanical theory, utilize the new wind of secondary to change and control the Flow Field Distribution of dusty gas in cyclone dust collectors, to reach the purpose of carrying efficiency of dust collection.
Background technology
The cyclone duster structure that uses is simple at present, manufacturing, use, easy to maintenance.It is to utilize the rotation of dust-contained airflow in the whirlwind tube, makes the grit in the air-flow produce certain centrifugal inertial force, and the grit in the air-flow to peripolesis, falls to reaching the purpose of gathering dust after running into barrel under the effect of centrifugal inertial force.But because the rotary speed difference of grit of diverse location in the whirlwind tube, the distance that arrives barrel is also different, so the effect of the dust-contained airflow dedusting of diverse location is just different, existence for this reason has a significant impact the efficiency of dust collection of cyclone dust collectors.And the rotary speed of diverse location is determined by whirlwind barrel structure and corresponding flow field, dedusting theory and version with regard to present existing cyclone dust removal gas, also do not solve the more effective way of above-mentioned phenomenon, thereby influence the further development and application of cyclone dust collectors.
Summary of the invention
It is theoretical that the present invention proposes a kind of secondary stream, sets up a new air inlet on the basis of an air intake of original cyclone dust collectors, feeds new wind from the air inlet of newly establishing, to reach the purpose of the VELOCITY DISTRIBUTION in control and the change flow field.And a kind of structure that feeds the cyclone dust collectors of secondary stream is provided, and can utilize the size of secondary stream to change velocity distribution of flow field, make it more help collection to dust.
In cyclone dust collectors, use the theoretical principle of secondary stream to be, on the basis of original cyclone dust collectors dust-cleaning principle, select suitable position to feed dust free fresh air, be secondary stream, utilize the fresh air that feeds, and the size of adjusting air capacity, can change the feature and the distribution thereof in flow field, make it obtain best Flow Field Distribution as far as possible, buffer action is also played in the intervention of new air simultaneously, dust-contained airflow and the position of being convenient to escape are kept apart, so that more help the collection of dust, at the control model that can set up the secondary stream under the corresponding construction condition under the guidance of above-mentioned theory thought.
The cyclone dust collectors that have secondary stream provided by the invention, as Fig. 1, be to settle an interlayer cover (3) in the design of the outside of blast pipe (5), this mezzanine space has an air inlet (4) in whirlwind tube outer setting, the inboard passage that forms of many through holes and whirlwind tube is arranged in the outside of interlayer (3), dust-contained airflow remains from air inlet (2) and enters during work, in the whirlwind tube rotation and move down, introduce dustless new wind from secondary air mouth (4), enter interlayer (3), and enter in the whirlwind tube by (3), this dustless new wind can play the effect of following several respects: dust-contained airflow and discharge pipe are kept apart, can reduce the friction of dust-contained airflow and discharge pipe, reduce resistance, improve the dust-contained airflow rotary speed, can control the inlet or the speed of secondary stream simultaneously, quicken the rotary speed of dust-contained airflow; 2) because the appearance of the dustless air-flow in the interlayer (3) can press to cyclone wall with dust-contained airflow, not only improved the limit motion that becomes of grit, because the space of dust-contained airflow reduces, rotary speed can further improve simultaneously; 3) dust-contained airflow and air outlet are isolated, avoided the short circuit of dust-contained airflow.Can set up the flow field model and corresponding control model of the effect of this structure secondary stream.
Description of drawings
Fig. 1 is the structural representation of a kind of secondary flow cyclone dust extractor provided by the invention
The number in the figure title: the 1-Whirlwind barrel, the 2-air inlet, 3-interlayer cover, the 4-secondary flows to the air port, 5-chimney fan, 6-interlayer cover transit joint, 7-cone, 8-dust-exhausting port.
The specific embodiment
By Fig. 1 structure as can be known, the structure of this system can be welded by sheet metal and be realized.Generally be that air inlet with blower fan links to each other with the air outlet of cyclone dust collectors in dust pelletizing system, system is worked under negative pressure.Secondary flows to the air port and can link with another fan outlet, also can exist with the form of opening.
Claims (4)
1, a kind of theoretical and device of new type cyclone dust collector is characterized in that, on the basis of an air inlet (2) that constitutes the cyclone dust collectors flow field, sets up a secondary air mouth (4), with the Flow Field Distribution in control and the change cyclone dust collectors.
2, cyclone dust collectors according to claim 1 is characterized in that: formation comprises cyclone dust collectors cylindrical shell (1), air inlet (2), discharge pipe (5) and cone (7), at the arranged outside one interlayer cover (3) of discharge pipe (5).
3, cyclone dust collectors according to claim 1 is characterized in that: the part that extends to outside the Whirlwind barrel at interlayer cover (3) offers air inlet (4).
4, cyclone dust collectors according to claim 1 is characterized in that: many paths are arranged on the lateral wall of interlayer cover (3), make in the interlayer air thus path enter in the Whirlwind barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101080395A CN101306407A (en) | 2007-05-17 | 2007-05-17 | Secondary flow cyclone dust extractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101080395A CN101306407A (en) | 2007-05-17 | 2007-05-17 | Secondary flow cyclone dust extractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101306407A true CN101306407A (en) | 2008-11-19 |
Family
ID=40123209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101080395A Pending CN101306407A (en) | 2007-05-17 | 2007-05-17 | Secondary flow cyclone dust extractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101306407A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102688811A (en) * | 2012-05-30 | 2012-09-26 | 郭丰亮 | Cyclone dust collector with secondary flow |
| CN103230843A (en) * | 2013-05-02 | 2013-08-07 | 昆山工统环保机械有限公司 | Cyclone dust collector |
| CN105750098A (en) * | 2014-12-19 | 2016-07-13 | 中国石油天然气股份有限公司 | Cyclone separator |
| CN114226085A (en) * | 2022-01-24 | 2022-03-25 | 哈尔滨工业大学 | Short-circuit-free flowing gas-solid separation device with overflow sleeve |
-
2007
- 2007-05-17 CN CNA2007101080395A patent/CN101306407A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102688811A (en) * | 2012-05-30 | 2012-09-26 | 郭丰亮 | Cyclone dust collector with secondary flow |
| CN103230843A (en) * | 2013-05-02 | 2013-08-07 | 昆山工统环保机械有限公司 | Cyclone dust collector |
| CN105750098A (en) * | 2014-12-19 | 2016-07-13 | 中国石油天然气股份有限公司 | Cyclone separator |
| CN105750098B (en) * | 2014-12-19 | 2018-12-25 | 中国石油天然气股份有限公司 | A kind of cyclone separator |
| CN114226085A (en) * | 2022-01-24 | 2022-03-25 | 哈尔滨工业大学 | Short-circuit-free flowing gas-solid separation device with overflow sleeve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |
Open date: 20081119 |