CN102872673A - Electric bag dust collector - Google Patents

Electric bag dust collector Download PDF

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Publication number
CN102872673A
CN102872673A CN2012104199829A CN201210419982A CN102872673A CN 102872673 A CN102872673 A CN 102872673A CN 2012104199829 A CN2012104199829 A CN 2012104199829A CN 201210419982 A CN201210419982 A CN 201210419982A CN 102872673 A CN102872673 A CN 102872673A
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China
Prior art keywords
deflector
bag
dust collection
electrostatic fabric
fabric filter
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CN2012104199829A
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CN102872673B (en
Inventor
孙超凡
楼波
龙新峰
邬思科
于兴鲁
钱炜
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South China University of Technology SCUT
Electric Power Research Institute of Guangdong Power Grid Co Ltd
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South China University of Technology SCUT
Electric Power Research Institute of Guangdong Power Grid Co Ltd
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Publication of CN102872673A publication Critical patent/CN102872673A/en
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  • Filtering Of Dispersed Particles In Gases (AREA)
  • Electrostatic Separation (AREA)

Abstract

The invention discloses an electric bag dust collector comprising an electric dust collection region, a bag dust collection region and a flow guide device, wherein the flow guide device comprises a shell and a plurality of flow guide plates; a plurality of the flow guide plates are fixedly arranged in the shell from top to bottom to form a plurality of air flow channels; in the two adjacent flow guide plates, the tail end of the flow guide plate at the upper part and the head end of the flow guide plate at the lower part are located on the same horizontal plane; and the tail end of the flow guide plate at the bottom part and the bottom face of a filtering bag located at the most front row are located on the same horizontal plane. The flow guide device is arranged between the electric dust collection region and the bag dust collection region to reduce the brushing on the filtering bag on the front row of the bag dust collection region by an air flow, so that the air flow in the bag dust collection region is distributed uniformly, and the load of the filtering bag of the front row is reduced. Furthermore, the resistance between the electric dust collection region and the bag dust collection region is reduced and the air flow is prevented from being reflowed back to the electric dust collection region to influence the dust collection efficiency of the electric dust collection region.

Description

Electrostatic fabric filter
Technical field
The present invention relates to the dedusting technology field, refer in particular to a kind of electrostatic fabric filter.
Background technology
Electrostatic fabric filter is a kind of novel dust arrester, and the advantage that it combines electric cleaner and bag dust collector possesses reliability, and floor space is little, and investment and maintenance cost are low, the characteristics such as high efficiency of dust collection.At present, the electric precipitation district mainly contains two kinds with the mode that the dedusting area of being connected connects in the electrostatic fabric filter, a kind of is direct connection, air-flow directly enters a bag dedusting area through the electric precipitation district, the filter bag at bag dedusting area front row is washed away larger, cause the filter bag serious wear, secondly, also cause air-flow skewness in bag dedusting area, front-seat filter bag load is larger; Another kind is to adopt porous plate to connect, but porous plate can cause resistance increment, and part air-flow even can reflux and enter the electric precipitation district affects the efficiency of dust collection in electric precipitation district.
Summary of the invention
The invention provides a kind of electrostatic fabric filter, it can overcome the defective of prior art, and the filter bag wearing and tearing are few, and air-flow is evenly distributed, and can effectively avoid airflow reflux, reduces running resistance, thereby improves the efficiency of dust collection of electrostatic fabric filter.
The object of the present invention is achieved like this:
A kind of electrostatic fabric filter, it includes electric precipitation district, bag dedusting area and guiding device, described guiding device is installed between described electric precipitation district and the described bag dedusting area, and described guiding device is provided with many gas channels that communicate with described electric precipitation district and described bag dedusting area.
By between described electric precipitation district and described bag dedusting area, guiding device being set, when air-flow through described electric precipitation district during to described bag dedusting area, can play guiding function to air-flow by described guiding device.By between the electric precipitation district of described electrostatic fabric filter and bag dedusting area, guiding device being set, increase between described electric precipitation district and the described bag dedusting area and be communicated with area, running resistance between described electric precipitation district and the described bag dedusting area is reduced, prevented that airflow reflux from entering the electric precipitation district, affected electrostatic fabric filter work.
Among embodiment, be provided with many row's filter bags in the described bag dedusting area therein; Described guiding device includes housing and polylith deflector, the described deflector of polylith is fixed in the described housing from top to bottom and forms many described gas channels, in adjacent two deflectors, the tail end of superposed described deflector and the described head end that is positioned at the described deflector of bottom are on the same level, and the tail end of the described deflector bottom being positioned at is on the same level with the bottom surface that is positioned at the most front-seat described filter bag.
After the district's dedusting of flue gas process electric precipitation, when the air-flow on top moves to bag dedusting area direction, can run into described deflector, because the tail end of the described deflector of lastblock and the head end of the described deflector of next piece are positioned on the same level, then most air flow direction will be changed, then flow to the middle and lower part of described bag dedusting area, air-flow is evenly distributed, avoided flue gas excessive and front-seat filter bag caused wash away, reduce the load of front-seat filter bag, and avoid airflow reflux to enter the electric precipitation district, affect the efficiency of dust collection in electric precipitation district.
The air-flow of bottom, described electric precipitation district directly by described guiding device the gas channel of below flow to a bag dedusting area, together flow to the outlet of described bag dedusting area by the air-flow of the gas channel on described guiding device top with top, described electric precipitation district, the mode of bottom air inlet also helps the dust removing effects that improves described bag dedusting area so again.
Therein among embodiment, described deflector be shaped as arc.The described deflector of arc is more evenly distributed air-flow.
Therein among embodiment, the described deflector of polylith from top to bottom its radian and arc length increases gradually.
Between adjacent two described deflectors, the gas channel circulation area between uppermost described deflector and housing upper wall surface increases gradually, and speed can reduce during the described gas channel of airflow passes, thereby alleviates air-flow washing away front-seat filter bag.
Among embodiment, described guiding device includes 3 deflectors, is respectively the first deflector, the second deflector and the 3rd deflector from top to bottom therein.
Therein among embodiment, the radian of described the first deflector is 20 °, and the arc length of described the first deflector is 0.45 times of described filter bag length, the radian of described the second deflector is 40 °, and the arc length of described the second deflector is 0.50 times of described filter bag length, the radian of described the 3rd deflector is 70 °, and the arc length of described the 3rd deflector is 0.65 times of described filter bag length.
Among embodiment, the described deflector of polylith adopts the mode of welding to be connected with described housing therein.
Among embodiment, the upper and lower side of described housing is connected with the up and down inwall of described electrostatic fabric filter respectively therein, and the left and right side of described housing is connected with the left and right sides inwall of described electrostatic fabric filter respectively.
Electrostatic fabric filter of the present invention compared with prior art has following beneficial effect:
Electrostatic fabric filter of the present invention is by arranging guiding device in electric precipitation district and bag between the dedusting area, can reduce air-flow to the washing away of the filter bag at bag dedusting area front row, and the air-flow in bag dedusting zone is evenly distributed, and reduces the load of front-seat filter bag.On the other hand, reduce the resistance between electric precipitation district and the bag dedusting area, avoid airflow reflux electric precipitation district, and affect the efficiency of dust collection in electric precipitation district.
Description of drawings
Fig. 1 is the installation site schematic diagram of electrostatic fabric filter guiding device of the present invention;
Fig. 2 is the structural representation of guiding device among the present invention;
Fig. 3 is the left view of guiding device among the present invention.
The specific embodiment
As shown in Figure 1, electrostatic fabric filter of the present invention, it includes electric precipitation district 11, bag dedusting area 12 and guiding device 13, described guiding device 13 is installed between described electric precipitation district 11 and the described bag dedusting area 12, and described guiding device 13 is provided with many gas channels 20 that communicate with described electric precipitation district 11 and described bag dedusting area 12.Flue gas, enters into described bag dedusting area 12 and carries out dedusting again by many described gas channels 20 of described guiding device 13 through after district's 11 dedustings of described electric precipitation.Wherein, be provided with many row's filter bags in the described bag dedusting area 12, the set-up mode of arranging described filter bag has belonged to prior art, and the present invention does not repeat them here.
As shown in Figures 2 and 3, described guiding device 13 includes housing 14 and n piece deflector, the upper and lower side of described housing 14 is connected with the up and down internal face of described electrostatic fabric filter respectively, and the left and right sides wall of described housing 14 then is connected with the left and right sides wall of described electrostatic fabric filter; The described deflector of n piece is fixed in the described housing 14 from top to bottom, and described deflector and described housing 14, adjacent two described deflectors have formed n+1 bar gas channel 20.In this preferred embodiment, described deflector adopts the mode of welding to be fixedly connected with described housing 14.
In the present invention, described deflector is head end near an end in described electric precipitation district 11, and an end of close described bag dedusting area 12 is tail end.The head end of the described deflector of polylith all is positioned on the same perpendicular, and same, the tail end of the described deflector of polylith also is positioned on the same perpendicular.In adjacent two deflectors, the tail end of superposed described deflector and the described head end that is positioned at the described deflector of bottom are on the same level, and the tail end that is positioned at the described deflector of bottom is on the same level with the bottom surface that described bag dedusting area 12 is positioned at the most front-seat described filter bag.
After district's 11 dedustings of flue gas process electric precipitation, when the air-flow on top moves to bag dedusting area 12 directions, can run into described deflector, because the tail end of the described deflector of lastblock and the head end of the described deflector of next piece are positioned on the same level, then most air flow direction will be changed (flow direction that is as shown by the arrows in Figure 2 air-flow), then flow to the middle and lower part of described bag dedusting area 12, air-flow is evenly distributed, avoided flue gas excessive and front-seat filter bag caused wash away, reduce the load of front-seat filter bag, and avoid airflow reflux to enter the electric precipitation district, affect the efficiency of dust collection in electric precipitation district.
The air-flow of 11 bottoms, described electric precipitation district directly by described guiding device the gas channel of below flow to a bag dedusting area 12, together flow to again the outlet of described bag dedusting area 12 with 11 tops, described electric precipitation district by the air-flow of the gas channel on described guiding device top, adopt like this mode of bottom air inlet to also help the dust removing effects that improves described bag dedusting area 12.
Described deflector be shaped as arc, the described deflector of arc is more evenly distributed air-flow, and the described deflector of polylith its radian and arc length increase gradually from top to bottom.Between adjacent two described deflectors, the gas channel circulation area between uppermost described deflector and housing 14 upper wall surfaces increases gradually, and speed can reduce during the described gas channel of airflow passes, thereby alleviates air-flow washing away front-seat filter bag.
In this preferred embodiment, described guiding device 13 includes 3 deflectors, is respectively the first deflector 15, the second deflector 16 and the 3rd deflector 16 from top to bottom.In the present embodiment, the radian of described the first deflector 15 is 20 °, and the arc length of described the first deflector 15 is 0.45 times of described filter bag length, the radian of described the second deflector 16 is 40 °, and the arc length of described the second deflector 16 is 0.50 times of described filter bag length, the radian of described the 3rd deflector 17 is 70 °, and the arc length of described the 3rd deflector 17 is 0.65 times of described filter bag length.
The above embodiment has only expressed this several embodiments of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to written or printed documents patent of invention scope.Should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.

Claims (8)

1. electrostatic fabric filter, it includes electric precipitation district and bag dedusting area, it is characterized in that, it also includes guiding device, described guiding device is installed between described electric precipitation district and the described bag dedusting area, and described guiding device is provided with many gas channels that communicate with described electric precipitation district and described bag dedusting area.
2. electrostatic fabric filter according to claim 1 is characterized in that, is provided with many row's filter bags in the described bag dedusting area; Described guiding device includes housing and polylith deflector, the described deflector of polylith is fixed in the described housing from top to bottom and forms many described gas channels, in adjacent two deflectors, the tail end of superposed described deflector and the described head end that is positioned at the described deflector of bottom are on the same level, and the tail end of the described deflector bottom being positioned at is on the same level with the bottom surface that is positioned at the most front-seat described filter bag.
3. electrostatic fabric filter according to claim 1 is characterized in that, described deflector be shaped as arc.
4. electrostatic fabric filter according to claim 3 is characterized in that, the described deflector of polylith from top to bottom its radian and arc length increases gradually.
5. electrostatic fabric filter according to claim 4 is characterized in that, described guiding device includes 3 deflectors, is respectively the first deflector, the second deflector and the 3rd deflector from top to bottom.
6. electrostatic fabric filter according to claim 5, it is characterized in that, the radian of described the first deflector is 20 °, and the arc length of described the first deflector is 0.45 times of described filter bag length, the radian of described the second deflector is 40 °, and the arc length of described the second deflector is 0.50 times of described filter bag length, and the radian of described the 3rd deflector is 70 °, and the arc length of described the 3rd deflector is 0.65 times of described filter bag length.
7. electrostatic fabric filter according to claim 2 is characterized in that, the described deflector of polylith adopts the mode of welding to be connected with described housing.
8. electrostatic fabric filter according to claim 2 is characterized in that, the upper and lower side of described housing is connected with the up and down inwall of described electrostatic fabric filter respectively, and the left and right side of described housing is connected with the left and right sides inwall of described electrostatic fabric filter respectively.
CN201210419982.9A 2012-10-29 2012-10-29 Electric bag dust collector Active CN102872673B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103908863A (en) * 2014-04-04 2014-07-09 泰兴电除尘设备厂有限公司 Electrostatic and fabric composite filter

Citations (7)

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Publication number Priority date Publication date Assignee Title
JPH0975650A (en) * 1995-09-18 1997-03-25 Daido Steel Co Ltd Operation of dust eliminator
CN201067663Y (en) * 2006-12-20 2008-06-04 浙江菲达环保科技股份有限公司 Novel electric-bag composite type dust remover
CN201168531Y (en) * 2008-03-17 2008-12-24 江苏科宝机械制造有限公司 Electricity-backhose combined dust collector
JP2009052440A (en) * 2007-08-24 2009-03-12 Hitachi Plant Technologies Ltd Marine exhaust gas treatment device
CN201389414Y (en) * 2009-03-23 2010-01-27 鞍山凯信工矿设备有限公司 High efficiency electric-bag dust remover
CN201871303U (en) * 2010-01-12 2011-06-22 吉林东北苑电力开发有限公司 Passing-through type electricity and bag compound dust remover
CN203017931U (en) * 2012-10-29 2013-06-26 广东电网公司电力科学研究院 Electric bag dust remover

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0975650A (en) * 1995-09-18 1997-03-25 Daido Steel Co Ltd Operation of dust eliminator
CN201067663Y (en) * 2006-12-20 2008-06-04 浙江菲达环保科技股份有限公司 Novel electric-bag composite type dust remover
JP2009052440A (en) * 2007-08-24 2009-03-12 Hitachi Plant Technologies Ltd Marine exhaust gas treatment device
CN201168531Y (en) * 2008-03-17 2008-12-24 江苏科宝机械制造有限公司 Electricity-backhose combined dust collector
CN201389414Y (en) * 2009-03-23 2010-01-27 鞍山凯信工矿设备有限公司 High efficiency electric-bag dust remover
CN201871303U (en) * 2010-01-12 2011-06-22 吉林东北苑电力开发有限公司 Passing-through type electricity and bag compound dust remover
CN203017931U (en) * 2012-10-29 2013-06-26 广东电网公司电力科学研究院 Electric bag dust remover

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胡满银等: "电袋复合式除尘器气流分布的数值模拟", 《第13届中国电除尘学术会议论文集》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103908863A (en) * 2014-04-04 2014-07-09 泰兴电除尘设备厂有限公司 Electrostatic and fabric composite filter

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Address after: 510080 Dongfeng East Road, Dongfeng, Guangdong, Guangzhou, Zhejiang Province, No. 8

Patentee after: ELECTRIC POWER RESEARCH INSTITUTE, GUANGDONG POWER GRID CO., LTD.

Patentee after: South China University of Technology

Address before: 510080 Dongfeng East Road, Dongfeng, Guangdong, Guangzhou, Zhejiang Province, No. 8

Patentee before: Electrical Power Research Institute of Guangdong Power Grid Corporation

Patentee before: South China University of Technology

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Effective date of registration: 20170802

Address after: 510630, No. fifth, No. 146-150, Whampoa Avenue, Tianhe District, Guangdong, Guangzhou

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Patentee after: Guangdong Electric Power Research Institute of energy technology limited liability company

Address before: 510080 Dongfeng East Road, Dongfeng, Guangdong, Guangzhou, Zhejiang Province, No. 8

Co-patentee before: South China University of Technology

Patentee before: ELECTRIC POWER RESEARCH INSTITUTE, GUANGDONG POWER GRID CO., LTD.

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Effective date of registration: 20200706

Address after: 510080 Dongfeng East Road, Dongfeng, Guangdong, Guangzhou, Zhejiang Province, No. 8

Co-patentee after: SOUTH CHINA University OF TECHNOLOGY

Patentee after: Electric Power Research Institute of Guangdong Power Grid Co.,Ltd.

Address before: 510630, No. 146-150, No. fifth, Whampoa Avenue, Tianhe District, Guangdong, Guangzhou

Co-patentee before: SOUTH CHINA University OF TECHNOLOGY

Patentee before: GUANGDONG ELECTRIC POWER SCIENCE RESEARCH INSTITUTE ENERGY TECHNOLOGY Co.,Ltd.

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