CN202666999U - Corona electrode structure and electric dust precipitation device thereof in electric dust precipitation area - Google Patents
Corona electrode structure and electric dust precipitation device thereof in electric dust precipitation area Download PDFInfo
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- CN202666999U CN202666999U CN 201220347011 CN201220347011U CN202666999U CN 202666999 U CN202666999 U CN 202666999U CN 201220347011 CN201220347011 CN 201220347011 CN 201220347011 U CN201220347011 U CN 201220347011U CN 202666999 U CN202666999 U CN 202666999U
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Abstract
The utility model discloses a corona electrode structure and an electric dust precipitation device thereof in an electric dust precipitation area. The corona electrode structure comprises a flat plate structure and a plurality of strip-type burrs, wherein the flat plate structure is connected with a negative electrode of a high-voltage direct current power supply, and the strip-type burrs perpendicular to plate surfaces of the flat plate structure are evenly fixed on two surfaces of the flat plate structure in connecting mode. The burrs arranged on the same plate surface are arranged in a plurality of rows according to the flowing direction of airflow. The distances between two adjacent burrs along the airflow direction are all equal. The distances between two adjacent burrs along the height direction are also equal. The electric dust precipitation device formed by the corona electrode structure not only maintains characteristics of corona discharge, but also enables an electric field space to form large field intensity, thereby greatly promoting movements of charged dust, being easy to manufacture, strong in field intensity in the electric field, and high in dust collection efficiency, and having great function for charged dust.
Description
Technical field
The utility model relates to a kind of dust arrester internal structure of control atmosphere pollution, particularly relates to corona electrode structure and the electric dust collector thereof in a kind of electric precipitation district.
Background technology
At present, industrial flue gas cleaning generally adopts electric cleaner and electrostatic fabric filter, and its electric field region forms by dust collector pole and corona electrode, and passes to high voltage direct current.Although the structure of corona electrode is varied, such as: astroid, helix, jagged line, acupuncture line, RS line etc., but they all belong to linear lines, can play the function (under the HVDC electro ultrafiltration) that produces corona discharge and produce a large amount of anions (corona wire generally connects negative pole) and flow to electric field space, make the dust in the flue gas charged, become Charged, they are under the effect of electric field force, to the dust collector pole motion, finally be deposited on the positive plate, finish the purification of flue gas.Fig. 1 is the structural representation in electric precipitation district of a kind of electric dust collector of prior art, in the electric precipitation district, be typically provided with dust collecting pole plate 1 ＇ that be arranged in parallel, be arranged on two some corona wires 2 ＇ between dust collecting pole plate 1 ＇, corona wire 2 ＇ adopt the circle cross section metal wire, dust collecting pole plate 1 ＇ is connected with the positive pole of high-voltage DC power supply 3 ＇, corona wire 2 ＇ are connected with the negative pole of high-voltage DC power supply 3 ＇,, because corona wire is linear, leaving very short distance field intensity of corona wire just reduces rapidly, so that the suffered electric field force of Charged is less, and dust needs the long time to the dust collector pole motion, that is to say, dust arrester needs more dedusting area, for this reason, caused the equipment volume of dust arrester large, the drawback that expense is high.
The utility model content
The purpose of this utility model is to overcome the deficiency of prior art, corona electrode structure and the electric dust collector thereof in a kind of electric precipitation district are provided, by the improvement to the corona electrode structure, the characteristic that had both kept corona discharge can make again electric field space form larger field intensity, thereby promotes greatly the motion of Charged, have easy to manufacture, field intensity in the electric field is strong, and is large to the Charged effect, the characteristics that dust-collecting efficiency is high.
The technical scheme that its technical problem that solves the utility model adopts is: the corona electrode structure in a kind of electric precipitation district comprises a slab construction that is connected with the high-voltage DC power supply negative pole; Evenly be fixedly connected with respectively the prickle of the bar shaped of a plurality of plate faces perpendicular to slab construction on the two sides of slab construction; The a plurality of prickles that are in same plate face are listed as into many rows according to the flow direction of air-flow respectively; All equate in the distance along airflow direction between all two adjacent prickles; Also all equate in the distance along short transverse between all two adjacent prickles.
A plurality of prickles on the two sides of described slab construction become corresponding and arrange or the mutual dislocation setting.
The identical length of all prickles on the two sides of described slab construction etc.
Fix for welding between described prickle and the slab construction.
The free end of described prickle is pointed.
The pointed of described prickle is needle-like or zigzag or cone-shaped.
Described prickle pointed is the moulding of cutting sth. askew.
Described slab construction is comprised of the strip-shaped steel plate of some roll formings, and each strip-shaped steel plate is in a row along the flow direction of air-flow row, and the plate face of each strip-shaped steel plate is in the same plane, and each strip-shaped steel plate is connected with the high-voltage DC power supply negative pole respectively; Front side or rear side along the flow direction of air-flow at strip-shaped steel plate are fixed respectively a bar shape, and this bar shape stretches out along the two sides of strip-shaped steel plate respectively, and the two ends of bar shape are set as respectively pointed, with the prickle on the two sides that consists of slab construction.
A kind of electric dust collector, comprise the casing as the electric precipitation district, be arranged in parallel in the casing and arranged anode plate structures more, the centres of two adjacent row's anode plate structures are respectively arranged with a corona electrode structure, and each anode plate structure is connected with the high-voltage DC power supply positive pole respectively.
The suspention beam is equipped with on the top of described casing, and the vibrating rod that deashing is used is equipped with in the bottom; Described anode plate structure is comprised of the steel plate of polylith roll forming, and each steel plate is in a row along the flow direction of air-flow row, and the plate face of each steel plate is in the same plane, and each steel plate is connected with the high-voltage DC power supply positive pole respectively; The upper end of each steel plate is connected with the suspention beam, and the lower end of each steel plate is connected with vibrating rod; Described dull and stereotyped corona electrode structure hoisting is fixed in the casing.
Corona electrode structure and the electric dust collector thereof in a kind of electric precipitation of the present utility model district, with the circle cross section metal wire (or prickle shape line) of corona electrode in the electric precipitation district by routine, change the prickle combination of a slab construction and some regular arrangements into, namely, the prickle arrangement in a row, equate along airflow direction prickle distance, also equate along short transverse prickle distance.The electric field passage in electric precipitation district adopts and is comprised of two anode plate structures that are parallel to each other, and link to each other with the positive pole of high voltage source, as the anode of electric field, in the middle of passage, settle the one flat plate structure, and link to each other with the negative pole of high voltage source, negative electrode as electric field, at a plurality of prickles of the regular arrangement in the two sides of slab construction, that is, and the prickle arrangement in a row, equate along airflow direction prickle distance, also equate along short transverse prickle distance.Wherein, for easy to make, anode plate structure and dull and stereotyped corona discharge electrode structure all will adopt steel plate to make, wherein, the corona electrode structure, can adopt strip-shaped steel plate (such as C type, T-shaped etc.) and the compact arrangement of different section form, and on strip-shaped steel plate regular weldering with the prickle (such as needle-like, zigzag etc.) of different types.
The beneficial effects of the utility model are, because the prickle that has adopted a slab construction and evenly be fixedly connected with respectively the bar shaped of a plurality of plate faces perpendicular to slab construction on the two sides of slab construction consists of the corona electrode structure in the electric precipitation district of electric dust collector, and a plurality of prickles that are in same plate face are listed as into many rows according to the flow direction of air-flow respectively, all equate in the distance along airflow direction between all two adjacent prickles, also all equate in the distance along short transverse between all two adjacent prickles.The corona electrode structure of this electric dust collector owing to the planar structure of corona discharge electrode, had both kept the characteristic of corona discharge, can produce a large amount of anions, and enter electric field space, made exhaust gas dust charged; Can form strong uniform electric field with dust collector pole again, make electric field space form larger field intensity, promote greatly the motion of Charged, Charged is to the motion of dust collector pole in the enhancing electric field structure.Have easy to manufacturely, the field intensity in the electric field is strong, and is large to the Charged effect, high, the cost-effective characteristics of dust-collecting efficiency.
Below in conjunction with drawings and Examples the utility model is described in further detail; But corona electrode structure and the electric dust collector thereof in a kind of electric precipitation of the present utility model district are not limited to embodiment.
Description of drawings
Fig. 1 is the structural representation in electric precipitation district of the electric dust collector of prior art;
Fig. 2 is the structural representation in the electric precipitation district of electric dust collector of the present utility model;
Fig. 3 is that conventional garden shape corona wire field strength distribution and the plate corona discharge electrode field strength distribution of prior art compares schematic diagram;
The structural representation of an exhaust gases passes in the electric precipitation district of Fig. 4 electric dust collector that is the utility model in engineering is used;
Fig. 5 is the enlarged diagram of the I section among Fig. 4;
Fig. 6 is the schematic diagram of A behind the 90-degree rotation among Fig. 5;
Fig. 7 is the scheme of installation of the utility model positive plate in the electric precipitation district of electric dust collector in engineering is used;
Fig. 8 is the scheme of installation of the utility model corona electrode structure in the electric precipitation district of electric dust collector in engineering is used.
The specific embodiment
Embodiment, referring to shown in Figure 2, the corona electrode structure in a kind of electric precipitation of the present utility model district comprises a slab construction 1 that is connected with high-voltage DC power supply 5 negative poles; Evenly be fixedly connected with respectively the prickle 2 of the bar shaped of a plurality of plate faces perpendicular to slab construction on the two sides of slab construction 1; The a plurality of prickles 2 that are in same plate face are listed as into many rows according to the flow direction of air-flow respectively; All equate in the distance along airflow direction between all two adjacent prickles 2; Also all equate in the distance along short transverse between all two adjacent prickles 2.
Wherein, 2 one-tenth mutual dislocation settings of a plurality of prickles on the two sides of described slab construction 1, that is, and when certain position of the one side of slab construction 1 is provided with prickle 2, the position of the another side of the slab construction 1 corresponding with this certain position just is not provided with prickle 2, as shown in Figure 2; Certainly, a plurality of prickles 2 on the two sides of slab construction 1 also can form corresponding the setting, that is, when certain position of the one side of slab construction 1 was provided with prickle 2, the position of the another side of the slab construction 1 corresponding with this certain position also was provided with prickle 2;
The identical length of all prickles 2 on the two sides of described slab construction 1 etc.;
For welding fixes, namely form fixed relationship and conductive relation by welding between described prickle 2 and the slab construction 1;
The free end 21 of described prickle 2 is pointed; Pointed 21 of prickle can be needle-like or zigzag or cone-shaped; Also can be for being mitered into type.
A kind of electric dust collector of the present utility model, comprise the casing (not shown) as the electric precipitation district, many row's anode plate structures 3 have been arranged in parallel in the casing, the centre of two adjacent row's anode plate structures is respectively arranged with a corona electrode structure, the corona electrode structure is comprised of above-mentioned slab construction 1 and a plurality of prickles 2 that are fixed on slab construction 1 two sides, and each anode plate structure 3 is connected with high-voltage DC power supply 5 positive poles respectively; Every two adjacent row's anode plate structures 3 consist of a flue gas treatment channel 10, and Fig. 2 only shows one of them flue gas treatment channel.
Corona electrode structure and the electric dust collector thereof in a kind of electric precipitation of the present utility model district, with the circle cross section metal wire (or prickle shape line) of corona electrode in the electric precipitation district by routine, change prickle 2 combinations of a slab construction 1 and some regular arrangements into, namely, prickle 2 arrangement in a rows, equate along airflow direction prickle distance, also equate along short transverse prickle distance.The electric field passage in electric precipitation district adopts and is comprised of two anode plate structures that are parallel to each other 3, and link to each other as the anode of electric field with the positive pole of high voltage source 5, link to each other in the middle arrangement one flat plate structure 1 of passage and with the negative pole of high voltage source, as the negative electrode of electric field, formed power line 4 in the electric field space, at a plurality of prickles 2 of the regular arrangement in the two sides of slab construction 1 for this reason, namely, the prickle arrangement in a row equates along airflow direction prickle distance, also equates along short transverse prickle distance.
Corona electrode structure and the electric dust collector thereof in a kind of electric precipitation of the present utility model district, existing corona discharge function produces a large amount of anions, and enters electric field space, makes exhaust gas dust charged.In addition, because the planar structure of corona discharge electrode, it can form strong uniform electric field with dust collector pole, and Charged is to the motion of dust collector pole in the enhancing electric field structure.Make Charged shift to rapidly dust collector pole, improved dust-collecting efficiency, save cost.
Fig. 3 is that conventional garden shape corona wire field strength distribution and the plate corona discharge electrode field strength distribution of prior art compares schematic diagram, among the figure, transverse axis S represents the distance with corona electrode, longitudinal axis E represents field intensity, M is plate corona discharge electrode field strength distribution curve, N is conventional garden shape corona wire field strength distribution curve, and OC is a half-distance of passage.As shown in Figure 3, when adopting conventional garden shape corona wire, the position field intensity very near at the distance corona wire is very large, and slightly field intensity decays very soon during distant positions, and is tending towards a less stationary value; When adopting plate corona discharge electrode, field strength distribution basically in line, in distance corona wire position far away, field intensity is still very strong.
Extremely shown in Figure 8 referring to Fig. 4, corona electrode structure and the electric dust collector thereof in a kind of electric precipitation of the present utility model district, described slab construction 1 is comprised of the strip-shaped steel plate 11 of some roll formings, each strip-shaped steel plate 11 is in a row along the flow direction row of air-flow, and the plate face of each strip-shaped steel plate 11 is in the same plane, and each strip-shaped steel plate 11 is connected with the high-voltage DC power supply negative pole respectively; Front side or rear side along the flow direction of air-flow at strip-shaped steel plate 11 are fixed respectively a bar shape 20, this bar shape 20 stretches out along the two sides of strip-shaped steel plate 11 respectively, the two ends of bar shape 20 are set as respectively pointed, prickle with the two sides that consists of slab construction, namely bar shape 20 consists of two prickles 2, and minute is in position corresponding to slab construction 1 two sides.
Suspention beam 6 is equipped with on the top of described casing, and the vibrating rod that deashing is used is equipped with in the bottom; Described anode plate structure 3 is comprised of the steel plate 31 of polylith roll forming, and each steel plate 31 is in a row along the flow direction of air-flow row, and the plate face of each steel plate 31 is in the same plane, and each steel plate 31 is connected with the high-voltage DC power supply positive pole respectively; The upper end of each steel plate 31 is connected with suspention beam 6, and the lower end of each steel plate is connected with vibrating rod; Described dull and stereotyped corona discharge electrode structure 1 lifting is fixed in the casing.
In engineering is used, for make, easy for installation, usually, anode plate structure 3 as dust collector pole can be comprised of the long strip type steel plate of some roll formings (for example C shape steel plate or ZT24 plate), steel plate thickness is δ=1.2 ~ 1.5mm, upper suspension is in the top of housing suspention beam, and the bottom links to each other with the vibrating rod that deashing is used, and pole plate length can reach 15m.
The corona electrode structure also can adopt the strip-shaped steel plate (such as C type, T-shaped etc.) of different section form to make, and compact arrangement, and on strip-shaped steel plate regular weldering with the prickle of different types, for example shown in Figure 5, with the prickle of draw point (the most handy copper cash) moulding of cutting sth. askew of a ￠ 2.Corona pole plate top links to each other with a small frame, and each small frame is supported on the large bogie side frame of both sides, and two large bogie side frames are supported on the insulating sleeve on top by four suspension rods, and the small frame bottom links to each other with an anvil unit, is used for vibration dust-cleaning.During deduster work, high voltage source passes to the high voltage direct current of 40 ~ 60KV to the two poles of the earth, at this moment, draw point on the corona discharge electrode can send strong ion current (corona discharge), makes electric field space be full of anion, makes the dust granules that enters electric field space charged, simultaneously, can form the large uniform electric field of intensity between board-like corona discharge electrode and dust collector pole, make most electronegative Chargeds rapidly to the dust collector pole motion, reach the purpose of gas cleaning.Also have simultaneously and seldom measure positively charged dust deposit on tabular corona discharge electrode.Vibration body when regular startup the two poles of the earth, the dust that is deposited on the two poles of the earth just can come off and fall into the ash bucket of bottom, and is transported by the ash exhauster of ash bucket outlet.
Above-described embodiment only is used for further specifying corona electrode structure and the electric dust collector thereof in a kind of electric precipitation of the present utility model district; but the utility model is not limited to embodiment; every foundation technical spirit of the present utility model all falls in the protection domain of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment does.
Claims (10)
1. the corona electrode structure in an electric precipitation district is characterized in that: comprise a slab construction that is connected with the high-voltage DC power supply negative pole; Evenly be fixedly connected with respectively the prickle of the bar shaped of a plurality of plate faces perpendicular to slab construction on the two sides of slab construction; The a plurality of prickles that are in same plate face are listed as into many rows according to the flow direction of air-flow respectively; All equate in the distance along airflow direction between all two adjacent prickles; Also all equate in the distance along short transverse between all two adjacent prickles.
2. the corona electrode structure in electric precipitation according to claim 1 district, it is characterized in that: a plurality of prickles on the two sides of described slab construction become corresponding and arrange or the mutual dislocation setting.
3. the corona electrode structure in electric precipitation according to claim 1 district is characterized in that: the identical length of all prickles on the two sides of described slab construction etc.
4. the corona electrode structure in electric precipitation according to claim 1 district is characterized in that: fix for welding between described prickle and the slab construction.
5. the corona electrode structure in electric precipitation according to claim 1 district, it is characterized in that: the free end of described prickle is pointed.
6. the corona electrode structure in electric precipitation according to claim 5 district is characterized in that: described prickle pointed is needle-like or zigzag or cone-shaped.
7. the corona electrode structure in electric precipitation according to claim 5 district is characterized in that: described prickle pointed is the moulding of cutting sth. askew.
8. the corona electrode structure in electric precipitation according to claim 1 district, it is characterized in that: described slab construction is comprised of the strip-shaped steel plate of some roll formings, each strip-shaped steel plate is in a row along the flow direction row of air-flow, and the plate face of each strip-shaped steel plate is in the same plane, and each strip-shaped steel plate is connected with HVDC source electricity negative pole respectively; Front side or rear side along the flow direction of air-flow at strip-shaped steel plate are fixed respectively a bar shape, and this bar shape stretches out along the two sides of strip-shaped steel plate respectively, and the two ends of bar shape are set as respectively pointed, with the prickle on the two sides that consists of slab construction.
9. electric dust collector, comprise the casing as the electric precipitation district, many row's anode plate structures have been arranged in parallel in the casing, it is characterized in that: the centre of two adjacent row's anode plate structures is respectively arranged with one such as the described corona electrode structure of arbitrary claim in the claim 1 to 8, and each anode plate structure is connected with the high-voltage DC power supply positive pole respectively.
10. electric dust collector according to claim 9, it is characterized in that: the suspention beam is equipped with on the top of described casing, and the vibrating rod that deashing is used is equipped with in the bottom; Described anode plate structure is comprised of the steel plate of polylith roll forming, and each steel plate is in a row along the flow direction of air-flow row, and the plate face of each steel plate is in the same plane, and each steel plate is connected with the high-voltage DC power supply positive pole respectively; The upper end of each steel plate is connected with the suspention beam, and the lower end of each steel plate is connected with vibrating rod; Described dull and stereotyped corona electrode structure hoisting is fixed in the casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201220347011 CN202666999U (en) | 2012-07-17 | 2012-07-17 | Corona electrode structure and electric dust precipitation device thereof in electric dust precipitation area |
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| CN 201220347011 CN202666999U (en) | 2012-07-17 | 2012-07-17 | Corona electrode structure and electric dust precipitation device thereof in electric dust precipitation area |
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| CN202666999U true CN202666999U (en) | 2013-01-16 |
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| CN 201220347011 Expired - Lifetime CN202666999U (en) | 2012-07-17 | 2012-07-17 | Corona electrode structure and electric dust precipitation device thereof in electric dust precipitation area |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102836784A (en) * | 2012-07-17 | 2012-12-26 | 福建龙净环保股份有限公司 | Corona electrode structure of electric dust removal area and electric dust remover thereof |
| CN103521025A (en) * | 2013-11-04 | 2014-01-22 | 福建龙净环保股份有限公司 | Electrostatic fabric filter |
-
2012
- 2012-07-17 CN CN 201220347011 patent/CN202666999U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102836784A (en) * | 2012-07-17 | 2012-12-26 | 福建龙净环保股份有限公司 | Corona electrode structure of electric dust removal area and electric dust remover thereof |
| CN103521025A (en) * | 2013-11-04 | 2014-01-22 | 福建龙净环保股份有限公司 | Electrostatic fabric filter |
| CN103521025B (en) * | 2013-11-04 | 2016-08-17 | 福建龙净环保股份有限公司 | A kind of electric-bag complex dust collector |
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| CX01 | Expiry of patent term |