CN101808710B - Circular type air injection nozzles having two circular slits and filter cleaning system using them - Google Patents
Circular type air injection nozzles having two circular slits and filter cleaning system using them Download PDFInfo
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- CN101808710B CN101808710B CN200880108765XA CN200880108765A CN101808710B CN 101808710 B CN101808710 B CN 101808710B CN 200880108765X A CN200880108765X A CN 200880108765XA CN 200880108765 A CN200880108765 A CN 200880108765A CN 101808710 B CN101808710 B CN 101808710B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/70—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter
- B01D46/71—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with pressurised gas, e.g. pulsed air
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Abstract
There are provided circular type air injection nozzles having two circular slits by generating the Coanda effect, and a filter cleaning system using them and more particularly, circular type air injection nozzles having two circular slits by using the Coanda effect, the air injection nozzle in which two circumferential type air injection slits are formed around inner and outer peripheries of the air injection nozzle and the Coanda effect is generated when injecting compressed air through the slits at high speed so that the injected air flows along a surface of a guide inside the air injection nozzle and then nearby air being several tens of times an amount of the injected air drawn from the inside and outside of the air injection nozzle is guided to the inside of the filter, and a filter cleaning system using them. The present invention as described has the feature of remarkably improving the performance of the cleaning system.
Description
Technical field
the present invention relates to have two ring-like air nozzles that produce the annulus of Coanda effect, and the filter cleaning system that uses this nozzle, and more specifically, relate to and have two ring-like air nozzles that utilize the annulus of Coanda effect, wherein two circumference type air spray around inner rim that slit-shaped is formed in air nozzle and neighboring and produce Coanda effect when spraying at high speed compressed air by the gap, so that the air that sprays flows along the surface of the guide of air nozzle inboard and then its quantity be directed to filter interior near the air of the decades of times of and outside injection air capacity out inboard from air nozzle, and relate to the filter cleaning system that uses this nozzle.
Background technology
Usually, when on the dust filter that the dust granule that produces is collected in filter dust collector during various industrial process so that when removing, the air drag of filter both sides increases and therefore must remove and is collected in the lip-deep dust of dust filter.In filter dust collector, modal is to adopt the impulse jet clean method.In this method, air nozzle spray compressed air immediately so that dust filter expands and thereby the dust that is collected on filter surfaces be removed.
Korean patent application 20-2005-16238 (name is called: the system that is used for the cleaning dust arrester), 20-1997-26955 (name is called: the nozzle that is used for the cleaning dust arrester) and 20-1995-17896 (name is called: the air nozzle that is used for the cleaning bag filter), disclose about the system that cleans dust filter with the impulse jet clean method and the routine techniques that cleans the air nozzle of dust filter.
Yet the nozzle that uses in the cleaning systems of aforementioned existing dust-collecting filter has complicated formation or needs to be controlled dividually.Due to these reasons, the cleaning systems of existing dust-collecting filter are difficult to safeguard or repair or they cause higher installation cost.
For example, in a kind of filter cleaning system of filter dust collector (korean patent application 20-2005-16238) (one of aforementioned existing system), because each nozzle comprises actuator and packing, its installation cost is high especially.And because actuator needs to repair individually, system is difficult to safeguard or repair.
Summary of the invention
Technical problem
Therefore, make the present invention to address the above problem, and one aspect of the present invention is to provide a kind of two ring-like air nozzles that produce the annulus of Coanda effect that have, and the filter cleaning system that uses this nozzle, thereby improve the dust catching efficiency of dust-collecting filter and improve significantly the performance of dust filter cleaning system.
Technical scheme
According to an aspect of the present invention, above-mentioned and other side can be by being mounted to the dust filter cleaning system the ring-like air nozzle of jet pipe complete, each ring-like air nozzle comprises: the upper, annular guide, and it is configured as semi-circular and is formed with the ingate in its top side with corresponding with the hole of jet pipe; The lower annular guide, it is positioned at below the upper, annular guide and by the rotation streamlined cross section and constructs; And coupling part, it connects the top of lower guide member and the bottom of upper guide member, to form outside gap between the external peripheral surface of the inner circumferential surface of the outer wall of upper guide member and lower guide member, form inner gap between the inner circumferential surface of the inner circumferential surface of the inwall of upper guide member and lower guide member, and in the over top of lower guide member in the inboard space that forms of upper guide member.
According to another aspect of the present invention, provide the dust filter cleaning system of the ring-like air nozzle that a kind of use has two annulus, this system comprises: the clean air storage box that is positioned the filter dust collector outside; Be positioned to be arranged on a plurality of jet pipes on the vertical top of the dust-collecting filter in filter dust collector, each jet pipe comprises a plurality of air spray orifices that form with equidistant from distance in the longitudinal direction, and an end of jet pipe is connected with the clean air control valve with equidistant from distance on the length direction of clean air storage box and other end closure; And a plurality of clean air control valves, each comprises that the control module that is positioned the clean air storage box outside and an end are connected to the valve cell that each control module and the other end are connected to an end of each jet pipe, wherein ring-like air nozzle and jet pipe are by the fixture combination, and described fixture is fixed in the place, both sides of upper, annular guide in contact with the circumference of jet pipe near the both sides of saddle connector.The saddle connector that forms connection opening from its top to bottom is inserted between the upper guide member of jet pipe and annular air nozzle so that each spray orifice of jet pipe functionally is connected to each ingate of upper guide member.
Advantageous effects
At the ring-like air nozzle that has two annulus according to the present invention and in using the dust filter cleaning system of this ring-like air nozzle, because air nozzle produces Coanda effect, the filter cleaning performance is very high, even clean with low-pressure air.Therefore, the cost of energy of filter cleaning reduces, and extend the service life of dust-collecting filter, and the dust catching efficiency of dust arrester improves.
And, having in the filter cleaning system of ring-like air nozzle of two annulus in use, air nozzle is externally controlled.Therefore, unless air nozzle need not its corrosion of independent repair procedures or damaged.Therefore, easily safeguard or repair this system.
Description of drawings
These and other aspect of the present invention and advantage will become from the following description of the accompanying drawings of embodiments clear and more should be readily appreciated that, in the accompanying drawings:
Fig. 1 illustrates filter dust collector, is used for explaining the present invention;
Fig. 2 is that filter dust collector shown in Figure 1 is along the cutaway view of line A-A;
Fig. 3 is the perspective view of ring-like air nozzle of decomposition that is used for cleaning dust-collecting filter with two annulus according to the embodiment of the present invention, the structure that shown in it, air nozzle is combined with jet pipe;
Fig. 4 illustrates the air nozzle that is bonded to jet pipe shown in Figure 3;
Fig. 5 illustrates according to the upper guide member of the ring-like air nozzle of the embodiment of the present invention and the marriage relation of jet pipe;
Fig. 6 illustrates the ring-like air nozzle and the compressed-air actuated flow pattern that are used for the cleaning dust-collecting filter that has in accordance with another embodiment of the present invention two annulus;
Fig. 7 illustrates the different examples according to the lower guide member of the ring-like air nozzle with two annulus of the embodiment of the present invention;
Fig. 8 illustrates the example of the marriage relation of upper guide member and lower guide member;
Fig. 9 illustrates another example of the marriage relation of upper guide member and lower guide member;
Figure 10 is the reference diagram according to the ring-like air nozzle that is bonded to jet pipe of the embodiment of the present invention;
Figure 11 is the perspective view of ring-like air nozzle that has in accordance with another embodiment of the present invention the decomposition of two annulus;
Figure 12 is the sectional view of ring-like air nozzle that has in accordance with another embodiment of the present invention the decomposition of two annulus;
Figure 13 is the perspective view of air nozzle that has in accordance with another embodiment of the present invention the decomposition of two annulus;
Figure 14 is the sectional view that uses in accordance with another embodiment of the present invention the representative configuration of the jet pipe in the dust arrester cleaning systems of the ring-like air nozzle with two annulus; And
Figure 15 is the sectional view that uses in accordance with another embodiment of the present invention the representative configuration of the jet pipe in the dust arrester cleaning systems of the ring-like air nozzle with two annulus.
The explanation of＜accompanying drawing main element 〉
100: filter dust collector
7: dust-collecting filter
9: air lance
10: the upper guide member of ring-like air nozzle
20: the lower guide member of ring-like air nozzle
31: outstanding entrance
41: solder joint
42: pin
50: the saddle connector
61: the clean air storage box
62: control module
63: valve cell
65: the clean air control valve
70: stationary fixture
The specific embodiment
Before describing the present invention in detail, will explain below to relate to filtration control of dust technology of the present invention, impulse jet clean method and Coanda effect:
Filtering the control of dust technology is to be contained in by removing with dust-collecting filter the dust of processing in gas.When dust granule was collected on filter, the differential pressure of filter both sides increased.Thereby, need the process of the dust of regular separated and collected on filter surfaces and this to be called hereinafter cleaning filtration.Be generally used for filtering filtrating and cleaning method in the control of dust technology comprise by at once spray compressed air separates dust from filter surfaces impulse jet clean method, by with the direction of opposite direction of processing gas and pass filter on supply air flow come the adverse current clean method of cleaning and filtering and the clean method that shakes that comes cleaning and filtering by direct vibration dust-collecting filter.
About the impulse jet clean method, the impulse jet cleaning device generally includes: be used for storing compressed-air actuated clean air storage box to be sprayed, be used for controlling the clean air control valve from the compressed-air actuated amount of clean air storage box transmission when cleaning; Be used for to be sent to a plurality of clean air jet pipes of each dust-collecting filter by the compressed air of clean air control valve transmission; And be attached to each clean air jet pipe and be used for a plurality of clean air nozzles of compressed air actual ejection to dust-collecting filter inside.
And in the impulse jet clean method, the clean air control valve is opened the very short time, less than 0.2 second, to allow compressed air immediately from nozzle ejection.Then, the air that directly sprays and flow into dust-collecting filter by near the air short time that high velocity jet is induced, thereby expansion dust-collecting filter and remove and be deposited on the lip-deep dust of dust-collecting filter.The filter cleaning system of apply pulse injection clean technologies is accomplished in various ways.
Coanda effect is the physical phenomenon of being found by Henri Coanda.When fluid was crossed object surperficial with high velocity stream, it was along the surperficial fast moving of object, and therefore the fluid pressure around object reduces.This is called as Coanda effect.This phenomenon appears at mobile Fluid injection by narrow gap during such as capillary, and when existing wall surface crooked on fluid flow direction nearby, flow is crooked along this curved surface.
For example, Coanda effect is applied to aircraft.At air when having the wing of the end face of different curvature and bottom surface, the pressure decreased on end face.So, the climbing power of aircraft produces by the action and reaction between the wing and the air that flows downward along wing surface with fast speed.
Therefore, Coanda effect can be applicable to various fields and aircraft field.Namely, Coanda effect be applied to widely install different exhausts with ventilation, be used for electric wire or the optical fiber of communicate by letter or the industrial circle that cleans large-sized boiler.
Hereinafter, describe with reference to the accompanying drawings embodiments of the invention in detail.
The dust arrester that is used for the present invention is filter dust collector 100.As shown in fig. 1, filter dust collector 100 comprises: the main control of dust chamber 1 of chamfered edge taper, in order to collect dust by inertial collision; Be connected to the gas inlet pipe 1` of main control of dust chamber 1; The secondary control of dust chamber 2 of box-like, it is formed on the top of main control of dust chamber 1 and comprises that a plurality of dust-collecting filters 7 are to remove the dust that passes main control of dust chamber 1; Fix the filter installing plate 3 at the top of each dust-collecting filter 7; Be connected to the blast pipe 2` of the side wall of secondary control of dust chamber 2 above filter installing plate 3; Be positioned the inside and outside cleaning systems that are deposited on the dust on each dust-collecting filter 7 with separation of secondary control of dust chamber 2; And receive the dust that is separated from each dust-collecting filter 7 by filter cleaning system with storage and move down dust box 4 by the dust of main control of dust chamber 1.
A plurality of ring-like air nozzle that is used for the cleaning dust-collecting filter with two annulus according to the present invention is mounted to the jet pipe 9 of impulse jet type filter cleaning system.Jet pipe 9 sprays by the spray orifice 9` that is formed at its place, bottom and flows into air.Nozzle comprises: the upper guide member 10 of annular; The lower guide member 20 of annular; And coupling part.Upper guide member 10 is located to be formed with ingate 10` so that corresponding with the spray orifice 9` of jet pipe 9 and at its underpart place opening in one side (top).Lower guide member 20 is positioned the following of upper guide member 10 and constructs by rotation and extension streamlined cross section.The coupling part is connected the top of lower guide member 20 by forming outer gap L1 and form gap L2 between the external peripheral surface of the inner circumferential surface of the outer wall of upper guide member 10 and lower guide member 20 between the inner circumferential surface of the inner circumferential surface of the inwall of upper guide member 10 and lower guide member 20 with the bottom of upper guide member 10, simultaneously in the over top of lower guide member 20 in upper guide member 10 inside formation space S.
As described in Figure 3 and 4, the similar top of upper guide member 10 semi-circular has the structure at place, its underpart opening.A pair of ingate 10` is formed at the place, top of upper guide member 10, so that corresponding with the spray orifice 9` that is formed on jet pipe 9.When the quantity of ingate 10` was even number, ingate 10` formed facing each other, thereby upper guide member 10 firmly is mounted to jet pipe 9.
Then, preferably, outside gap L1 and inner gap L2 can be formed at respectively between the external peripheral surface of the inner circumferential surface of outer wall of upper guide member 10 and lower guide member 20 and between the inner circumferential surface of the inner circumferential surface of the inwall of upper guide member 10 and lower guide member 20.Preferably, space S can be formed in the over top of lower guide member 20 upper guide member 10 inside.
Outside gap L1 and inner gap L2 can be formed in the scope of 0.05 to 1.0 millimeter.It is highly in the scope of 2 to 20 millimeters that outside gap L1 and inner gap L2 can be formed on.Inner circumferential edge at place, the bottom of lower guide member 20 and the inclination angle (θ) between horizontal plane can be formed in the scopes of 30 to 150 degree.For example, inner circumferential edge at the bottom of lower guide member 20 place and the tiltangleθ between horizontal plane can be as shown in Figure 7 formation with changing.
As shown in Fig. 8 and 9, the coupling part can be to be in several solder joints that equidistant from distance forms with the shape of several points 41 to keep outside gap L1 and inner gap L2 with respect to outside gap L1 and inner gap L2 respectively, and perhaps the coupling part can be to form a plurality of pins 42 of flange to keep outside gap L1 and inner gap L2 being in the place, both sides with respect to outside gap L1 and inner gap L2 equidistant from distance respectively.
Use the filter cleaning system of the filter dust collector 100 of the nozzle in above-mentioned structure to comprise: the clean air storage box 61 that is positioned the outside of filter dust collector 100; Be positioned to be arranged on a plurality of jet pipes 9 on the vertical top of the dust-collecting filter 7 in filter dust collector, each jet pipe 9 has the spray orifice 9` that forms with equidistant from distance in the longitudinal direction, one end is installed with equidistant from distance on the length direction of clean air storage box 61, and the other end is closed; And a plurality of clean air control valves 65, each comprise the control module 62 that is positioned clean air storage box 61 outsides and an end be connected to each control module 62 and the other end be connected to each jet pipe 9 one end valve cell 63, wherein ring-type air nozzle and jet pipe be by fixture 70 combinations, its each with the both sides of the contacted saddle connector 50 of the circumference of jet pipe 9 near be fixed in the place, both sides of top ring-type guide 10.The saddle connector 50 that forms connection opening 51 from its top to bottom inserts between the upper guide member 10 of jet pipes 9 and ring-type air nozzle so that each spray orifice 9` of jet pipe 9 functionally is connected to each ingate 10` of upper guide member 10.
Clean air storage box 61 structures are stored the compressed air of high pressure and are positioned the outside of filter dust collector 100, as shown in Figure 1.
Dust-collecting filter 7 is positioned in the secondary control of dust chamber 2 of filter dust collector 100 inside.A plurality of dust-collecting filters 7 are located with predetermined layout and are configured to be fixed to filter installing plate 3 and remove to be contained in and process airborne dust.
For example, jet pipe 9 can be the cylindrical tube of an end opening and other end closure.A plurality of spray orifice 9` are being formed at equidistant from distance on the bottom of jet pipe 9 on the length direction of jet pipe 9.In jet pipe 9, a side and the closed other end that an end of opening is connected to clean air storage box 61 are fixed on filter installing plate 3 tops in order to be positioned the vertical top place of dust-collecting filter 7.A jet pipe 9 is mounted for forming the dust-collecting filter 7 of row.A plurality of jet pipe 9` that form with equidistant from distance on jet pipe 9 are relative with dust-collecting filter 7 in vertical direction.
Control valve 65 comprises the control module 62 that is positioned clean air storage box 61 outsides, and an end is connected to the valve cell 63 that control module 62 and the other end are connected to the openend of each jet pipe 9.
When outstanding entrance 31 was formed on upper guide member 10, F is placed and welded to stationary fixture 70 in the place, both sides of upper guide member 10 around the circumference of jet pipe 9 near outstanding entrance 31, thereby upper guide member 10 is fixed to jet pipe 9.
And, when outstanding entrance 31 is not formed on upper guide member 10, saddle connector 50 inserts between upper guide member 10 and jet pipe 9, and stationary fixture 70 is welded in the place, both sides of upper guide member 10 near the both sides of saddle connector 50, thereby upper guide member 10 is clamped to jet pipe 9.
In the present invention, in order to improve the linearity of the air-flow that enters dust-collecting filter 7, the aperture 9a of a plurality of branches can be formed at according to the center on the plane of the upper guide member 10 of each nozzle that is connected to jet pipe 9 place, bottom of jet pipe 9, or a plurality of branched pipe 9b can be by further forming to downward-extension from each aperture 9a of branch.
The present invention has used preferred exemplary embodiment to describe.Yet, will appreciate that, scope of the present invention is not limited to disclosed embodiment.On the contrary, scope of the present invention will comprise and use various modification and the alternative arrangement in those skilled in the art's limit of power of known or WeiLai Technology and equivalents at present.Therefore, the scope of claim should be according to the most wide in range explanation to comprise all these class modification and likewise arrangement.
Claims (13)
1. the ring-like air nozzle of a dust filter cleaning system, it is mounted to jet pipe (9), and jet pipe (9) is formed with spray orifice (9`) in the bottom, and this nozzle comprises:
Ring-type upper guide member (10), side is formed with ingate (10`) so that corresponding with the spray orifice (9`) of jet pipe (9) and at its underpart place opening thereon;
Ring-type lower guide member (20), it is positioned the following of upper guide member (10) and consists of by rotation and extension streamlined cross section; And
the coupling part that connects the top of lower guide member (20), lower guide member (20) be positioned at upper guide member (10) below, to form outside gap (L1) between the external peripheral surface of the inner circumferential surface of the outer wall of upper guide member (10) and lower guide member (20), form inner gap (L2) between the inner circumferential surface of the external peripheral surface of the inwall of upper guide member (10) and lower guide member (20), and in the over top of lower guide member (20) in the inboard space (S) that forms of upper guide member (10).
2. according to claim 1 air nozzle, the quantity that wherein is formed at the ingate (10`) on the top of upper guide member (10) be at least two or more.
3. according to claim 2 air nozzle, wherein, when the quantity of (10`) was even number in the ingate, ingate (10`) formed with the symmetrical structure that corresponds to each other.
4. according to claim 2 air nozzle, wherein upper guide member (10) comprises that also from the ingate (10`) extends upward the outstanding entrance (31) of predetermined length.
5. according to claim 1 air nozzle, wherein the coupling part is sentence respectively a plurality of solder joints (41) of the shape formation of a plurality of points with respect to the equidistant from distance of outside gap (L1) and inner gap (L2), to keep outside gap (L1) and inner gap (L2).
6. according to claim 1 air nozzle, wherein the coupling part is to form a plurality of pins (42) of flange at the place, both sides with the equidistant from distance with respect to outside gap (L1) and inner gap (L2) respectively.
7. according to claim 1 air nozzle, the width of its peripheral gap (L1) and inner gap (L2) is 0.05 to 1.0 millimeter.
8. according to claim 1 air nozzle, wherein at a side of the inner circumferential edge at the place, bottom of lower guide member (20) and the inclination angle (θ) between horizontal plane in the scope of 30 to 150 °.
A use according to claim 1, the filter cleaning system of the filter dust collector (100) of 2,3,5,6,7 and 8 any one ring-like air nozzle, it comprises:
Be positioned the clean air storage box (61) in filter dust collector (100) outside;
Be positioned to be arranged on a plurality of jet pipes (9) on the vertical top of the dust-collecting filter (7) in filter dust collector (100), each jet pipe (9) has in the longitudinal direction with equidistant from distance and is formed at a plurality of spray orifices (9`) on the bottom, one end of jet pipe is installed with equidistant from distance on the length direction of clean air storage box (61), and the other end is closed; And
A plurality of clean air control valves (65), each comprises that the control module (62) in the outside that is positioned clean air storage box (61) and an end are connected to the valve cell (63) that each control module (62) and the other end are connected to an end of each jet pipe (6)
the ring-like air nozzle that wherein has two annulus and the combination of jet pipe (9) be in the following way: when the upper guide member (10) of nozzle contacts jet pipe (9), insertion is formed on the saddle connector (50) of the outstanding connection opening (51) in top and bottom so that each spray orifice (9`) functionally is connected to each ingate (10`), and by the stationary fixture combination, each fixture contacts with the circumference of jet pipe (9) and welds (F) in the place, both sides of upper guide member (10) near the both sides of saddle connector (50).
10. according to claim 9 filter cleaning system, wherein the upper and lower of connection opening (51) form outstanding so that the thickness with the top of the thickness of the bottom of the jet pipe that is connected to upper guide member (10) (9) and upper guide member (10) is identical respectively.
11. filter cleaning system according to claim 9, wherein jet pipe (9) also comprises:
Based on the center on the plane of the upper guide member (10) of each nozzle that connects, be formed at a plurality of branches aperture (9a) at the place, bottom of jet pipe (9), improve the linearity of the air-flow that enters dust-collecting filter (7); Or
By a plurality of branched pipes (9b) that form from each branch aperture (9a) to downward-extension.
12. the filter cleaning system of the filter dust collector (100) of a use ring-like air nozzle according to claim 4, it comprises:
Be positioned the clean air storage box (61) in the outside of filter dust collector (100);
Be positioned to be arranged on a plurality of jet pipes (9) on the vertical top of the dust-collecting filter (7) in filter dust collector (100), each jet pipe (9) has in the longitudinal direction with equidistant from distance and is formed at a plurality of spray orifices (9`) on the bottom side, one end of jet pipe is installed with equidistant from distance on the length direction of clean air storage box (61), and the other end is closed; And
A plurality of clean air control valves (65), each comprises that the control module (62) in the outside that is positioned clean air storage box (61) and an end are connected to the valve cell (63) that each control module (62) and the other end are connected to an end of each jet pipe (6)
Wherein by using stationary fixture (70) to carry out, each fixture contacts with the circumference of jet pipe (9) and welds (F) in the place, both sides of upper guide member (10) near outstanding entrance (31) upper guide member (10) with the combination of jet pipe (9).
13. filter cleaning system according to claim 12, wherein jet pipe (9) also comprises:
Based on the center on the plane of the upper guide member (10) of each nozzle that connects, be formed at a plurality of branches aperture (9a) at the place, bottom of jet pipe (9), improve the linearity of the air-flow that enters dust-collecting filter (7); Or
By a plurality of branched pipes (9b) that form from each branch aperture (9a) to downward-extension.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/KR2008/001719 WO2009119925A1 (en) | 2008-03-27 | 2008-03-27 | Circular type air injection nozzles having two circular slits and filter cleaning system using them |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101808710A CN101808710A (en) | 2010-08-18 |
| CN101808710B true CN101808710B (en) | 2013-05-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200880108765XA Active CN101808710B (en) | 2008-03-27 | 2008-03-27 | Circular type air injection nozzles having two circular slits and filter cleaning system using them |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101808710B (en) |
| WO (1) | WO2009119925A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5463603B2 (en) * | 2010-03-24 | 2014-04-09 | コリア インスティテゥート オブ エナジー リサーチ | Double cylindrical slit dust removal air injection nozzle and filtration dust collector dedusting system using the same |
| GB2536219B (en) | 2015-03-06 | 2019-05-01 | Aaf Ltd | Flow control device for a self-cleaning gas filtration system |
| CN105012011B (en) * | 2015-07-03 | 2018-11-16 | 上海交通大学 | Smoke filter system |
| JP7368167B2 (en) * | 2019-10-04 | 2023-10-24 | 株式会社ディスコ | Dust collection processing equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1629502A (en) * | 2003-12-16 | 2005-06-22 | Crf股份公司 | Air-distribution device based on the coanda effect |
| KR200394113Y1 (en) * | 2005-06-07 | 2005-08-30 | 이창준 | dust collector dust removing system |
| JP3138283U (en) * | 2007-10-15 | 2007-12-27 | 伸興産業株式会社 | Dust collector |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008049302A (en) * | 2006-08-25 | 2008-03-06 | Shinko Sangyo Kk | Venturi tube and bag filter retainer equipped with the same |
| KR100803721B1 (en) * | 2006-11-01 | 2008-02-15 | 조광섭 | Compressed air supplying device using air amplifier |
| KR100718708B1 (en) * | 2007-02-08 | 2007-05-15 | (주)안성정기 | Injector for bag filter of dust collector |
-
2008
- 2008-03-27 WO PCT/KR2008/001719 patent/WO2009119925A1/en active Application Filing
- 2008-03-27 CN CN200880108765XA patent/CN101808710B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1629502A (en) * | 2003-12-16 | 2005-06-22 | Crf股份公司 | Air-distribution device based on the coanda effect |
| KR200394113Y1 (en) * | 2005-06-07 | 2005-08-30 | 이창준 | dust collector dust removing system |
| JP3138283U (en) * | 2007-10-15 | 2007-12-27 | 伸興産業株式会社 | Dust collector |
Non-Patent Citations (1)
| Title |
|---|
| JP特開2008-49302A 2008.03.06 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101808710A (en) | 2010-08-18 |
| WO2009119925A1 (en) | 2009-10-01 |
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