CN203075775U - Down air inlet bag type dust collector - Google Patents
Down air inlet bag type dust collector Download PDFInfo
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- CN203075775U CN203075775U CN 201220670664 CN201220670664U CN203075775U CN 203075775 U CN203075775 U CN 203075775U CN 201220670664 CN201220670664 CN 201220670664 CN 201220670664 U CN201220670664 U CN 201220670664U CN 203075775 U CN203075775 U CN 203075775U
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- ash bucket
- guide vane
- air inlet
- welded
- distribution device
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Abstract
The utility model discloses a down air inlet bag type dust collector. The down air inlet bag type dust collector comprises a dust hopper provided with an air inlet in the side wall, an airflow uniform distribution device arranged in the dust hopper, a shell and a filtering bag installed in a filtering area, wherein the airflow uniform distribution device comprises a connecting plate welded on the side wall of the dust hopper provided with the air inlet, two triangular vertical plates which are parallel to each other, a plurality of guide vanes with two ends being respectively welded on the side surfaces of the two vertical plates, and a supporting tube with two ends being respectively welded on the side wall of the dust hopper, the upper ends of the vertical plates are welded with the bottom surface of the connecting plate, the front ends of the vertical plates are welded on the side wall of the dust hopper provided with the air inlet, the rear parts of the vertical plates are fixed in the dust hopper through the supporting tube, and the plurality of guide vanes are in ladder type distribution in the airflow uniform distribution device. The down air inlet bag type dust collector has the advantages of uniform airflow distribution in the filtering area, high dust removal efficiency and long service life of the filtering bag, and the airflow uniform distribution device has the characteristics of being easy to produce and convenient to install.
Description
Technical field
The utility model relates to a kind of deduster, particularly relates to and a kind ofly comprises ash bucket, is arranged on airflow uniform distribution device, the housing in the ash bucket and be installed in the following air admission type sack cleaner of the filter bag in the filtering area.
Background technology
Sack cleaner is the filtration mechanism that utilizes filter bag, and a kind of cleaner with grit is separated from dusty gas has advantages such as efficiency of dust collection height, stable performance and adaptability are strong, thereby is particularly useful for the strict area of dust emission.In order to reduce the floor space of equipment, some sack cleaners adopt air admission type (promptly from the ash bucket air intake) down, and plural part deflector is set in ash bucket, so that dust-contained airflow enters filtering area more equably.On a pulse blowing bag type dust precipitator air-flow distribution physical model, China Metallurgical Group Construction Research Institute is equipped with in ash bucket under the condition of oblique deflector (referring to Fig. 1 and Fig. 2), test the velocity flow profile situation of cloth bag chamber and ash bucket joint, and utilized FLUENT software that the Flow Field Distribution situation of this deduster inside has been carried out numerical simulation.Test result and numerical simulation result show, setting up the oblique deflector of plural part rightly in the air admission type sack cleaner down, can significantly improve the flow distribution evenness in the zone between filtering area, filtering area and the ash bucket, damage thereby reduce the filter bag cause because of local air flow speed is too high, see also the summary in the master thesis " research of pulse bag type dust collector interior flow field " that crown writes.
But, when being provided with oblique deflector in this time air admission type sack cleaner ash bucket, the air velocity in this deduster rear wall and sidewall angle zone is still bigger.For example one, when preferable operating condition of test 3, on a test section that is set between filtering area and the ash bucket, the mean wind speed of outermost delegation measuring point (delegation's measuring point of measuring point mean wind speed maximum at once) only is 1.2 times of this test section mean wind speed, but this delegation backmost the wind speed of that measuring point reached 1.6 times of this test section mean wind speed.Because the air-flow rate of climb easily makes the filter bag that is installed on this place damage too early than higher, makes the sub-fraction dusty gas enter air-purifying chamber by the filter bag damage place then, thereby reduces the efficiency of dust collection of this deduster, sees also the subordinate list 8 in this paper herein.For example two, when in this deduster prototype 16 oblique deflectors being set, computer simulation experiment is the result show, on the horizontal tangent plane of 2500mm place along continuous straight runs above the ash bucket, the mean wind speed of exterior lateral area also is greater than this test section mean wind speed, sees also Fig. 2 .39 in this paper.
In addition, because of 4 highly identical oblique deflectors are ladder pattern distribution in ash bucket, the ash bucket profile is truncated rectangular pyramids in addition, so the last edge lengths of the oblique deflector of each part is neither identical, edge lengths is also neither identical down for it.When the number of packages of oblique deflector more for a long time, be not easy to make and install.
By further investigation, the inventor realizes that there is above-mentioned defective in prior art; Technical scheme as described below is proposed then, to overcome the deficiency of prior art.
The utility model content
The purpose of this utility model is to provide a kind of airflow uniform distribution device of air admission type sack cleaner flow field distribution down that is used to improve, and based on the light and handy airflow uniform distribution device of this structure, provide a kind of following air admission type sack cleaner that is provided with this airflow uniform distribution device, to overcome the deficiency of prior art.
In order to reach above-mentioned purpose, the utility model adopts following concrete technical scheme: following air admission type sack cleaner, be included in the ash bucket sidewall be provided with air inlet ash bucket, be arranged at airflow uniform distribution device, the housing in the ash bucket and be installed in filter bag in the filtering area; Described airflow uniform distribution device comprises that the connecting plate that is welded on the ash bucket sidewall that is provided with air inlet, two risers triangular in shape, the two ends that are parallel to each other are welded on plural part guide vane on described two riser sides and two ends respectively and are welded on stay pipe on the ash bucket sidewall respectively; Weld mutually with described connecting plate bottom surface described riser upper end, and its front end is welded on the ash bucket sidewall that is provided with air inlet, and its rear portion is fixed in the described ash bucket by described stay pipe; Described plural part guide vane is ladder pattern distribution in described airflow uniform distribution device.
Preferably, described plural part guide vane is notch cuttype and evenly distributes between two risers.
Preferably, in described airflow uniform distribution device, from described ash bucket air inlet farthest that part guide vane and the distance between the described ash bucket center line less than 0.5 meter.
Preferably, the ratio of the width of the length of described plural part guide vane and described ash bucket air inlet is 1.2～2.4.
Preferably, the cross section of described guide vane is an in-line; Two reinforcements are welded on respectively on the windward side, lee face of the guide vane group of being made up of described plural part guide vane, to improve the intensity of this guide vane group.
Preferably, the cross section of described guide vane is V font or circular arc.
Compared with prior art, the utlity model has following outstanding advantage and effect: dust-contained airflow is after the ash bucket air inlet enters ash bucket, after part air-flow is stopped by the guide vane on the described airflow uniform distribution device, riser and ash bucket wallboard, in ash bucket, form eddy current; Another part air-flow is divided into multiply by these guide vanes and makes the air-flow of motion obliquely.This airflow uniform distribution device, not only the existing airflow uniform distribution device that can install in ash bucket makes front portion, ash bucket place suitable for reading, middle part and the trizonal air velocity in rear portion are more even, and the air velocity in the outside, ash bucket place suitable for reading is reduced, the outside, ash bucket place suitable for reading and the air velocity in rear side angle zone are significantly reduced, thereby further improve filtering area, the flow distribution evenness in the zone between filtering area and the ash bucket, and make the filtration load of each filter bag more even, and then improve the dust-collecting efficiency and the service life that prolongs filter bag of air admission type sack cleaner down.
In addition, in the utility model, because of the physical dimension that is welded on two each part guide vanes on the riser side parallel to each other identical, so it has easy making and characteristics easy for installation.
Description of drawings
Fig. 1 is the structural representation that the following air admission type sack cleaner of oblique deflector is installed;
Fig. 2 is the structural representation of oblique deflector;
Fig. 3 is the structural representation of air admission type sack cleaner under the utility model;
Fig. 4 is the A-A cutaway view of Fig. 3;
Fig. 5 is the structural representation of airflow uniform distribution device among first embodiment;
Fig. 6 is the vertical view of Fig. 5;
Fig. 7 is the structural representation of airflow uniform distribution device among second embodiment;
Fig. 8 is the structural representation of airflow uniform distribution device among the 3rd embodiment.
Among Fig. 1 to Fig. 8:
Intake header road 1; Entrance branch 2; Ash bucket 3; Airflow uniform distribution device 4,4A, 4B; Connecting plate 41,41A; Riser 42,42A; Guide vane 43,43A, 43B; Stay pipe 44,44A; Reinforcement 45; Housing 5; Filter bag 6; Pulse spraying equipment 7; Bypass valve device 8; Poppet valve device 9; Outlet header road 10.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
Embodiment one
To shown in Figure 6, a kind of air admission type sack cleaner down is included in ash bucket 3, airflow uniform distribution device 4, housing 5, filter bag 6, pulse spraying equipment 7, bypass valve device 8 and poppet valve device 9 that the ash bucket sidewall is provided with air inlet as Fig. 3.Described airflow uniform distribution device 4 is arranged in the ash bucket 3, comprises that the connecting plate 41 that is welded on the ash bucket sidewall that is provided with air inlet, two risers triangular in shape 42, the two ends that are parallel to each other are welded on plural part guide vane 43 on described two riser 42 sides and two ends respectively and are welded on stay pipe 44 on the ash bucket sidewall respectively; Weld mutually with described connecting plate 41 bottom surfaces described riser 42 upper ends, and its front end is welded on the ash bucket sidewall that is provided with air inlet, and its rear portion is fixed in the described ash bucket 3 by described stay pipe 44; Described plural part guide vane 43 is notch cuttype and evenly distributes between two risers 42, wherein from described ash bucket air inlet farthest that part guide vane 43 and the distance between described ash bucket 3 longitudinal centre lines less than 0.5 meter; The ratio of the width of the length of described guide vane 43 and described ash bucket air inlet is 1.5; The cross section of described guide vane 43 is an in-line; Two reinforcements 45 are welded on respectively on the windward side, lee face of the guide vane group of being made up of described plural part guide vane 43, to improve the intensity of this guide vane group.
Comprise one section reducing pipe, one section vertical tube, 90 degree elbow and one section horizontal straight tube with the entrance branch 2 that described ash bucket 3 welds mutually; The symmetrical center line of this horizontal straight tube overlaps with the cross central line of described ash bucket 3, overlaps with the symmetrical center line of described airflow uniform distribution device 4 again simultaneously.
The dirt air-flow passes through after intake header road 1, the entrance branch 2 successively, air admission type sack cleaner under the air inlet of ash bucket 3 flows into; After part air-flow is stopped by the guide vane on the airflow uniform distribution device 4 43, riser 42 and ash bucket wallboard, in ash bucket 3, form eddy current; Another part air-flow is divided into multiply by these eight guide vanes 43 and makes the air-flow of motion obliquely.Airflow uniform distribution device 4 not only makes front portion, ash bucket place suitable for reading, the trizonal air velocity in middle part and rear portion more even, and the air velocity in the outside, ash bucket place suitable for reading is reduced, the outside, ash bucket place suitable for reading and the air velocity in rear side angle zone are significantly reduced, thereby further improve filtering area, the flow distribution evenness in the zone between filtering area and the ash bucket 3.After dust-contained airflow entered filtering area, the dust in the dust-contained airflow was delayed at the outer surface of filter bag 6, and clean gas then sees through filtrate and enters filter bag inside, then imports air-purifying chamber, 10 discharged from the outlet header road at last.This sack cleaner is after operation a period of time, because of more dust is delayed at filter bag 6 surface when making its running resistance be elevated to a certain degree, then the starting impulse blowing device 7, then make dust disengaging filter bag 6 and drop into ash bucket 3, thereby make this sack cleaner continue under lower SR, to move.
Improved the flow distribution evenness in the zone between filtering area, filtering area and the ash bucket 3 because of airflow uniform distribution device 4, and the filtration load that makes each filter bag more evenly (is compared when oblique deflector is set), so this sack cleaner has the advantage that efficiency of dust collection height, life of bag filter are grown.In addition, because of the physical dimension that is welded on two each part guide vanes 43 on riser parallel to each other 42 sides identical, so it has easy making and characteristics easy for installation.
Embodiment two
In the present embodiment, described airflow uniform distribution device 4A is different with the airflow uniform distribution device 4 among first embodiment, and all the other members of not stating among the member and first embodiment are identical.
As shown in Figure 7, described airflow uniform distribution device 4A is arranged in the ash bucket 3, comprise the connecting plate 41A that is welded on the ash bucket sidewall that is provided with air inlet, two riser 42A triangular in shape, two ends being parallel to each other be welded on respectively on described two riser 42A sides, cross section is that five guide vane 43A of V font and two ends are welded on the stay pipe 44A on the ash bucket sidewall respectively; Described riser 42A welds mutually with described connecting plate 41A bottom surface the upper end, and its front end is welded on the ash bucket sidewall that is provided with air inlet, and its rear portion is fixed in the described ash bucket 3 by described stay pipe 44A; Described five guide vane 43A are notch cuttype and evenly distribute between two riser 42A.Guide vane 43A physical dimension is bigger than the guide vane among first embodiment 43; And the physical dimension of two riser 42A than two risers 42 among first embodiment more greatly; But, connecting plate 41 among the physical dimension of connecting plate 41A and first embodiment is basic identical, stay pipe 44 among the length of stay pipe 44A and first embodiment is roughly the same, because of guide vane 43A(annotates: its cross section is the V font) intensity enough greatly, so needn't on the windward side of this guide vane group, lee face, weld reinforcement.
Described airflow uniform distribution device 4A also can improve the flow distribution evenness in the described sack cleaner, and the filtration load that makes each filter bag more evenly (is compared when oblique deflector is set), so the described sack cleaner of present embodiment also has the advantage that efficiency of dust collection height, life of bag filter are grown.In addition, because of the physical dimension of each part guide vane 43A identical, so it has easy making and characteristics easy for installation.
Embodiment three
In the present embodiment, the airflow uniform distribution device 4A among the described airflow uniform distribution device 4B and second embodiment is basic identical, and all the other members of not stating among the member and first embodiment are identical.
As shown in Figure 8, described airflow uniform distribution device 4B is arranged in the ash bucket 3, comprise the connecting plate 41A that is welded on the ash bucket sidewall that is provided with air inlet, two riser 42A triangular in shape, two ends being parallel to each other be welded on respectively on described two riser 42A sides, cross section is that five guide vane 43B of circular arc and two ends are welded on the stay pipe 44A on the ash bucket sidewall respectively; Described riser 42A welds mutually with described connecting plate 41A bottom surface the upper end, and its front end is welded on the ash bucket sidewall that is provided with air inlet, and its rear portion is fixed in the described ash bucket 3 by described stay pipe 44A; Described five guide vane 43B are notch cuttype and evenly distribute between two riser 42B.Apparently, the described sack cleaner of present embodiment also has efficiency of dust collection height, the long advantage of life of bag filter, and its guide vane 43B also has easy making and characteristics easy for installation.
It should be noted that at last: above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (6)
1. descend the air admission type sack cleaner, be included in the ash bucket sidewall and be provided with the ash bucket (3) of air inlet, be arranged at the airflow uniform distribution device (4) in the ash bucket (3), housing (5) and be installed in filter bag (6) in the filtering area, it is characterized in that: described airflow uniform distribution device (4) comprises the connecting plate (41) that is welded on the ash bucket sidewall that is provided with air inlet, two risers triangular in shape (42) that are parallel to each other, two ends are welded on plural part guide vane (43) on described two risers (42) side and two ends respectively and are welded on stay pipe (44) on the ash bucket sidewall respectively; Weld mutually with described connecting plate (41) bottom surface described riser (42) upper end, and its front end is welded on the ash bucket sidewall that is provided with air inlet, and its rear portion is fixed in the described ash bucket (3) by described stay pipe (44); Described plural part guide vane (43) is ladder pattern distribution in described airflow uniform distribution device (4).
2. air admission type sack cleaner down according to claim 1, it is characterized in that: described plural part guide vane (43) is notch cuttype and evenly distributes between two risers (42).
3. down air admission type sack cleaner according to claim 1 and 2 is characterized in that: in described airflow uniform distribution device (4), from described ash bucket air inlet farthest that part guide vane (43) and the distance between the described ash bucket center line less than 0.5 meter.
4. air admission type sack cleaner down according to claim 1 and 2, it is characterized in that: the ratio of the length of described guide vane (43) and the width of described ash bucket air inlet is 1.2～2.4.
5. air admission type sack cleaner down according to claim 1 and 2, it is characterized in that: the cross section of described guide vane (43) is an in-line; Two reinforcements (45) are welded on respectively on the windward side, lee face of the guide vane group of being made up of described plural part guide vane (43), to improve the intensity of this guide vane group.
6. air admission type sack cleaner down according to claim 1 and 2, it is characterized in that: the cross section of described guide vane (43) is V font or circular arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220670664 CN203075775U (en) | 2012-12-08 | 2012-12-08 | Down air inlet bag type dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220670664 CN203075775U (en) | 2012-12-08 | 2012-12-08 | Down air inlet bag type dust collector |
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| Publication Number | Publication Date |
|---|---|
| CN203075775U true CN203075775U (en) | 2013-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220670664 Expired - Fee Related CN203075775U (en) | 2012-12-08 | 2012-12-08 | Down air inlet bag type dust collector |
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| Country | Link |
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| CN (1) | CN203075775U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104475255A (en) * | 2014-11-26 | 2015-04-01 | 枣庄矿业（集团）有限责任公司蒋庄煤矿 | Smoke distribution device in electric dust removal air inlet hood |
-
2012
- 2012-12-08 CN CN 201220670664 patent/CN203075775U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104475255A (en) * | 2014-11-26 | 2015-04-01 | 枣庄矿业（集团）有限责任公司蒋庄煤矿 | Smoke distribution device in electric dust removal air inlet hood |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161230 Address after: 361000 Fujian, Xiamen torch Park hi tech park, the park, the real estate industry building, room 609 Patentee after: XIAMEN GONGYUAN ENVIRONMENTAL SCIENCE AND TECHNOLOGY CO., LTD. Address before: 364000 Longyan Economic Development Zone, Fujian Patentee before: Fujian Dongyuan Environmental Protection Equipment Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130724 Termination date: 20181208 |