CN104001630A - Low-resistance cyclone separator of coal bed gas air blower - Google Patents
Low-resistance cyclone separator of coal bed gas air blower Download PDFInfo
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- CN104001630A CN104001630A CN201410261411.6A CN201410261411A CN104001630A CN 104001630 A CN104001630 A CN 104001630A CN 201410261411 A CN201410261411 A CN 201410261411A CN 104001630 A CN104001630 A CN 104001630A
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Abstract
The invention relates to a low-resistance cyclone separator of a coal bed gas air blower. The low-resistance cyclone separator of the coal bed gas air blower comprises a tank (10), a gravity settling chamber (20) and a cyclone separator body (30), wherein the cyclone separator body (30) is arranged inside the tank (10), and the space between the outer wall of the cyclone separator body (30) and the inner wall of the tank (10) is the gravity settling chamber (20). Compared with the prior art, the low-resistance cyclone separator of the coal bed gas air blower has the advantages that the design is ingenious, the dust removal efficiency is improved, coal ash, a small amount of water and other impurities contained in coal bed gas are effectively removed, and the application prospects are wide.
Description
Technical field
The present invention relates to gas filtration equipment, specifically, is about a kind of coal bed gas air blast low resistance cyclone separator.
Background technology
Along with energy problem is more and more fiery, the exploitation of the unconventional gas resources such as coal bed gas become a vital task of China's energy development.But in recent years due to the application of the various development tools of domestic coal bed gas; make unstripped gas makings worse and worse; the coal bed gas of carrying the impurity such as flyash, earth, corrosive pipeline thing and a small amount of water enters follow-up blower system; cause blower inlet screen pack because impurity stops up frequent shutdown, affect and produce and cause damage.Therefore, in the urgent need to finding a kind of dedusting and purifying device that can efficiently remove the impurity such as flyash in coal bed gas.
Conventional gravity settling technology is to utilize Action of Gravity Field to make the dust arrester of grit natural subsidence from air-flow.Its efficiency of dust collection is relevant with expansion chamber horizontal cross-section and air velocity, although gravitational precipitator is simple in structure, the pressure loss is little, and efficiency of dust collection is low, while using separately, cannot reach regulation technical indicator.Therefore, general slightly purifies expansion chamber as the first order.
Centrifugal separation technology is to utilize liquid relatively heavier in fluid and solid particle from gas phase, to separate under centrifugal action, cyclone separator is as a kind of exemplary apparatus of centrifugation, have simple in structure, floor space is little, invest lowly, operating maintenance is convenient, and the pressure loss is medium, the advantages such as power consumption is little, are generally used for trapping particles more than 20 μ m.But, need to have certain speed, and operating flexibility is less, if design improperly, easily produce upper eddy current, reduce separative efficiency.
Filtration and separation techniques is mainly used in the dust that particle diameter is very little, and the kind of isolated by filtration is a lot, and filtering accuracy can be done very highly, but the pressure loss is relatively large, and the operating condition of filter medium is had relatively high expectations.
In coal bed gas, the concentration of the impurity such as flyash is large, granularity is thicker, adopts single gravitational settling, cyclonic separation or isolated by filtration all can not reach the object of high-effective dust-removing cleaning.Consider the problems such as high efficiency, operating flexibility, economy, this area is in the urgent need to developing a kind of efficient coal bed gas separation equipment new, that can effectively overcome above-mentioned existing equipment deficiency.
Summary of the invention
Object of the present invention is exactly to provide a kind of efficient coal bed gas air blast low resistance cyclone separator in order to overcome the defect of above-mentioned prior art existence.
Object of the present invention can be achieved through the following technical solutions: a kind of coal bed gas air blast low resistance cyclone separator, it is characterized in that, comprise tank body, gravity settling chamber and cyclone separator, described cyclone separator is arranged at the inside of described tank body, and the space between this cyclone separator outer wall and inner tank wall is gravity settling chamber.
In described tank body, be also provided with central dividing plate, this central dividing plate is located at the upper end of gravity settling chamber and cyclone separator, for unstripped gas and purified gas are effectively separated.
Described cyclone separator comprises cylindrical shell, cone and the ash bucket being connected in turn from top to bottom, described cylindrical shell, cone are positioned at the inside of tank body, described ash bucket extend out to the below of tank body, on the side of described cylindrical shell, have import, the upper end of cylindrical shell is provided with blast pipe, the end of this blast pipe extends the top of central dividing plate, and the bottom of described cone is connected to ash bucket top by pipeline, so that separated solid and liquid impurity are delivered in ash bucket.
In described cyclone separator, be provided with tapered flow apron, be conducive to gas-solid two and be separated, improve efficiency of dust collection.
Described tank base is also provided with hand hole, for maintenance, when being necessary impurity is got rid of.
Described tank body lower part is arranged with a total air inlet, and top is arranged with a total gas outlet, and the top of central dividing plate is located in this total gas outlet.
Described tank body both sides are also provided with leg formula bearing, for supporting whole equipment.
Gravity settling chamber is the space between inner tank wall and cyclone separator outer wall; first unstripped gas enters gravity settling chamber; in dusty gas, the bulky grain of particle diameter more than 150～200 μ m can be separated due to subsidence effect; play the effect of pre-dedusting, reduce the load of follow-up cyclone separator simultaneously.
Cyclone separator is in the annular region of outlet and top and wall formation, below top, there is the boundary layer slowly of flowing, its static pressure is with radius " variation milder than the variation in strong eddy flow; so impel outside static pressure higher fluid to make progress in this boundary layer of person who lives in exile; and flow to the inside along boundary layer; transfer through outlet outer wall downwards, formed local circulation, also deserve to be called eddy current.The fine grained that this short-circuit flow has concentrated a part at deduster wall place upwards takes near top board, and has formed " upper dust-ring ", and the outlet of overflowing in the central gas stream frequently being risen with people, has affected efficiency of dust collection.The import of offering on the side of cylindrical shell is the inlet pipeline outside extended spot cylinder lateral wall, and its object is for air-flow has larger circulation area accordingly at flow velocity higher position, effectively eliminates the impact of upper eddy current.
Tapered flow apron makes particle enter in cyclone body with air-flow, when streamlined flow becomes circumference and flows, because the radial separation distance of particle reduces gradually, is therefore conducive to the separation of gas-solid two-phase. improved efficiency of dust collection, especially to fine grain trapping.In addition, flow apron and whirlwind top board keep certain gap, and not only resistance is decreased significantly, and separative efficiency also improves.
Central dividing plate is located at cyclone separator upper end, and cyclone separator exhaust pipe mouth is embedded in the middle of this dividing plate, plays the effect that unstripped gas and purified gas are effectively separated.
Cyclone separator cone base is connected to ash bucket top by flange, while accumulating a certain amount of dust in ash bucket, can clear up by demounting flange.
Compared with prior art, the present invention designs ingenious, simple in structure, cost is low, uses reliably, and equipment efficiency of dust collection is high, floor space is little, simple to operate, adopt in a creative way gravitational settling and cyclonic separation two stage treatment mode, can efficiently remove the impurity such as flyash contained in coal bed gas and a small amount of water.
Accompanying drawing explanation
Fig. 1 is the structural representation of coal bed gas air blast low resistance cyclone separator of the present invention;
Fig. 2 is the top view of inner cyclone separator, therefrom can be clear that the particular location of flow apron.
Figure number explanation: 10, tank body; 11, hand hole; 12, total air inlet; 13, central dividing plate; 14, total gas outlet; 15, leg formula bearing; 20, gravity settling chamber; 30, cyclone separator; 31, import; 32, blast pipe; 33, cylindrical shell; 34, cone; 35 ash buckets; 36, flow apron.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment
As shown in Fig. 1～2, a coal bed gas air blast low resistance cyclone separator, comprises tank body 10, gravity settling chamber 20 and cyclone separator 30, described cyclone separator 30 is arranged at the inside of described tank body 10, and the space between these cyclone separator 30 outer walls and tank body 10 inwalls is gravity settling chamber 20.
In described tank body 10, be also provided with central dividing plate 13, this central dividing plate 13 is located at the upper end of gravity settling chamber 20 and cyclone separator 30, for unstripped gas and purified gas are effectively separated.Described tank body 10 bottoms are also provided with hand hole 11, for maintenance, when being necessary impurity is got rid of.Described tank body 10 bottoms are arranged with a total air inlet 12, and top is arranged with a total gas outlet 14, and the top of central dividing plate 13 is located in this total gas outlet 14.Described tank body 10 both sides are also provided with leg formula bearing 15, for supporting whole equipment.
Described cyclone separator 30 comprises cylindrical shell 33, cone 34 and the ash bucket 35 being connected in turn from top to bottom, described cylindrical shell 33, cone 34 are positioned at the inside of tank body 10,35 belows that extend out to tank body 10 of described ash bucket, on the side of described cylindrical shell 33, have import 31, the upper end of cylindrical shell 33 is provided with blast pipe 32, the end of this blast pipe 32 extends the top of central dividing plate 13, the bottom of described cone 34 is connected to ash bucket 35 tops by pipeline, so that separated solid and liquid impurity are delivered in ash bucket.Described import 31 is the asymmetric plate conduit entrance from cylindrical shell 33 sidewall opening extensions.Import is conducive to eliminate the impact of eddy current.In described cyclone separator 30, be provided with tapered flow apron 36, be conducive to gas-solid two and be separated, improve efficiency of dust collection.
Claims (7)
1. a coal bed gas air blast low resistance cyclone separator, it is characterized in that, comprise tank body (10), gravity settling chamber (20) and cyclone separator (30), described cyclone separator (30) is arranged at the inside of described tank body (10), and the space between this cyclone separator (30) outer wall and tank body (10) inwall is gravity settling chamber (20).
2. a kind of coal bed gas air blast low resistance cyclone separator according to claim 1, it is characterized in that, in described tank body (10), be also provided with central dividing plate (13), this central dividing plate (13) is located at the upper end of gravity settling chamber (20) and cyclone separator (30), for unstripped gas and purified gas are effectively separated.
3. a kind of coal bed gas air blast low resistance cyclone separator according to claim 2, it is characterized in that, described cyclone separator (30) comprises the cylindrical shell (33) being connected in turn from top to bottom, cone (34) and ash bucket (35), described cylindrical shell (33), cone (34) is positioned at the inside of tank body (10), described ash bucket (35) extend out to the below of tank body (10), on the side of described cylindrical shell (33), have import (31), the upper end of cylindrical shell (33) is provided with blast pipe (32), the end of this blast pipe (32) extends the top of central dividing plate (13), the bottom of described cone (34) is connected to ash bucket (35) top by pipeline.
4. a kind of coal bed gas air blast low resistance cyclone separator according to claim 3, is characterized in that, described cyclone separator is provided with tapered flow apron in (30).
5. a kind of coal bed gas air blast low resistance cyclone separator according to claim 1, is characterized in that, described tank body (10) bottom is also provided with hand hole (11).
6. a kind of coal bed gas air blast low resistance cyclone separator according to claim 2, it is characterized in that, described tank body (10) bottom is arranged with a total air inlet (12), top is arranged with a total gas outlet (14), and the top of central dividing plate (13) is located in this total gas outlet (14).
7. a kind of coal bed gas air blast low resistance cyclone separator according to claim 1, is characterized in that, described tank body (10) both sides are also provided with leg formula bearing (15), for supporting whole equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410261411.6A CN104001630A (en) | 2014-06-12 | 2014-06-12 | Low-resistance cyclone separator of coal bed gas air blower |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410261411.6A CN104001630A (en) | 2014-06-12 | 2014-06-12 | Low-resistance cyclone separator of coal bed gas air blower |
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| CN104001630A true CN104001630A (en) | 2014-08-27 |
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| CN201410261411.6A Pending CN104001630A (en) | 2014-06-12 | 2014-06-12 | Low-resistance cyclone separator of coal bed gas air blower |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104711059A (en) * | 2015-02-09 | 2015-06-17 | 中国石油天然气股份有限公司 | Fireflood tail gas dehydrating unit |
| WO2018115233A1 (en) * | 2016-12-22 | 2018-06-28 | Primetals Technologies, Limited | A cyclonic adaptor |
| CN108465562A (en) * | 2018-04-17 | 2018-08-31 | 周万龙 | The long tapered feed pipe cyclone of circular arc |
| CN109663447A (en) * | 2019-02-21 | 2019-04-23 | 唐山市神州机械有限公司 | A kind of dry separation system and dry dressing method of the underground based on circulating current |
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| US3960734A (en) * | 1972-10-10 | 1976-06-01 | Antoni Zagorski | High efficiency cyclone separator |
| CN2263552Y (en) * | 1996-04-17 | 1997-10-01 | 化学工业部上海化工研究院 | High efficient low resistance cyclone separator |
| CN2576316Y (en) * | 2002-10-28 | 2003-10-01 | 上海化工研究院 | Novel bag-type composite duster |
| CN2920422Y (en) * | 2006-05-19 | 2007-07-11 | 金苗兴 | Dust eliminator set |
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| CN101804281A (en) * | 2010-04-15 | 2010-08-18 | 无锡世联丰禾石化装备科技有限公司 | Purification device used for removing solid and liquid impurities in gas |
| CN201567321U (en) * | 2009-10-24 | 2010-09-01 | 威海广泰环保科技有限公司 | Separation device for removing solid-liquid impurities in natural gas |
| CN203886311U (en) * | 2014-06-12 | 2014-10-22 | 上海化工研究院 | Device for removing coal ash from coal bed gas |
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2014
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US3960734A (en) * | 1972-10-10 | 1976-06-01 | Antoni Zagorski | High efficiency cyclone separator |
| CN2263552Y (en) * | 1996-04-17 | 1997-10-01 | 化学工业部上海化工研究院 | High efficient low resistance cyclone separator |
| CN2576316Y (en) * | 2002-10-28 | 2003-10-01 | 上海化工研究院 | Novel bag-type composite duster |
| CN2920422Y (en) * | 2006-05-19 | 2007-07-11 | 金苗兴 | Dust eliminator set |
| CN101292851A (en) * | 2007-04-24 | 2008-10-29 | 三星光州电子株式会社 | Multi cyclone dust-separating apparatus of vaccum cleaner |
| CN201567321U (en) * | 2009-10-24 | 2010-09-01 | 威海广泰环保科技有限公司 | Separation device for removing solid-liquid impurities in natural gas |
| CN101804281A (en) * | 2010-04-15 | 2010-08-18 | 无锡世联丰禾石化装备科技有限公司 | Purification device used for removing solid and liquid impurities in gas |
| CN203886311U (en) * | 2014-06-12 | 2014-10-22 | 上海化工研究院 | Device for removing coal ash from coal bed gas |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104711059A (en) * | 2015-02-09 | 2015-06-17 | 中国石油天然气股份有限公司 | Fireflood tail gas dehydrating unit |
| WO2018115233A1 (en) * | 2016-12-22 | 2018-06-28 | Primetals Technologies, Limited | A cyclonic adaptor |
| CN108465562A (en) * | 2018-04-17 | 2018-08-31 | 周万龙 | The long tapered feed pipe cyclone of circular arc |
| CN109663447A (en) * | 2019-02-21 | 2019-04-23 | 唐山市神州机械有限公司 | A kind of dry separation system and dry dressing method of the underground based on circulating current |
| CN109663447B (en) * | 2019-02-21 | 2024-03-08 | 唐山神州机械集团有限公司 | Underground dry separation system and method based on circulating air flow |
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Application publication date: 20140827 |