CN205392746U - Carry on one's shoulder or back electric flow straightener and electric precipitation defroster in advance - Google Patents
Carry on one's shoulder or back electric flow straightener and electric precipitation defroster in advance Download PDFInfo
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- CN205392746U CN205392746U CN201620184112.1U CN201620184112U CN205392746U CN 205392746 U CN205392746 U CN 205392746U CN 201620184112 U CN201620184112 U CN 201620184112U CN 205392746 U CN205392746 U CN 205392746U
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Abstract
The utility model discloses a carry on one's shoulder or back electric flow straightener and electric precipitation defroster in advance should carry on one's shoulder or back the part that discharges that electric flow straightener includes flow equalize board and corona discharge in advance, the board that flow equalizes package rubbing board body, be provided with a plurality of passageways that supply the flue gas to pass through on the edition of books body, the edition of books body is all perpendicular with ground, flue gas flow direction, and the part that discharges set up in the flow equalize rear of board, flow equalize the board with the part that discharges forms the electric field, the board that flow equalizes in the effect having, has the polar plate function again concurrently, not only can reduce the flow equalize length in district of import, can improve the dust removal fog effects in electric field district again, and then the whole that improves the electric precipitation defroster fog effects that removes dust.
Description
Technical field
This utility model relates to electrostatic precipitation technology field, particularly to a kind of pre electrified current equalizer and electric precipitation demister.
Background technology
In recent years, except in mist industry except traditional mechanical demister pattern, electric precipitation demister is applied to wet desulphurization outlet wet flue gas except in the project such as mist gradually as a kind of novel defogging equipment.It is that process exhaust gas volumn is big and overall resistance is little that electric precipitation compares the mechanical important feature removing mist except mist, but big flow flue gas enters electric precipitation demister and requires over the diffusion of import smoke box to reduce flue gas flow rate to adapt to the job requirement of electric precipitation demister, flue gas is big by the fluid deflector angle of import smoke box, electric precipitation demister inlet air flow skewness, demisting efficiency will be had a strong impact on, therefore generally electric precipitation is except all needing to arrange airflow uniform distribution device in the import smoke box of mist, and flue gas enters and carries out charged dedusting in housing except mist afterwards.At present, the import smoke box of electric precipitation demister generally arrange 1-3 layer airflow uniform distribution device or deflector air-flow is carried out uniform and optimize.Common air-flow even distributor pattern has circle hole shape, square hole-shaped, BAIYE shape etc..
The anode and cathode arrangement mode of electric precipitation demister routine is to be perpendicular on flue gas direction and be in same row's lateral arrangement position, the cathodic electricity hachure point of discharge vertically positive antianode plate adopting the pattern such as acupuncture or prickle wire is arranged, this layout is relatively suitable for the application of the operating mode occasion of relatively low flue gas flow rate.
The import smoke box of usual electric precipitation demister only deeply needs 1.2 meters to about 2.5 meters along flue gas direction, one to three layers air-flow even distributor is set in import smoke box, every interlamellar spacing is approximately in 500mm to 800mm, in order to fully improve except fog effect, alleviating wet flue gas after desulfurization for the corrosion of chimney and chimney " white cigarette " phenomenon, electric precipitation demister needs relatively sufficient amount of anode and cathode area and ensures to remove fog effect.But, the project of existing many newly-increased electric precipitation demisters makes it have determined that along the length dimension in flue gas direction because of the space restriction of actual field ground.The electric precipitation arranged in restriction space is unable to reach designing requirement except mist electric field anode and cathode quantity, to increase the quantity of polar plate of electric precipitation demister, that means that importing and exporting smoke box reduces only deeply along flue gas direction, cause airflow uniform distribution device in import smoke box to cancel one layer, affect airflow uniform distribution effect.Consider the air flow method impact on electric precipitation demisting efficiency, reasonably increase anode and cathode area and ensure just to be restricted except the scheme of fog effect, it is more difficult to meet transformation project demand.
In view of above technical problem, how to take into account electric precipitation demister import flue gas flow equalizing and charged dedusting two aspect, to improve the dedusting of electric precipitation demister except fog effect, be those skilled in that art's technical problems urgently to be resolved hurrily.
Utility model content
For solving above-mentioned technical problem, this utility model provides a kind of pre electrified current equalizer, discharge component including homogenizing plate and corona discharge, described homogenizing plate includes plate body, described plate body is provided for some passages that flue gas passes through, described plate body and ground, flow of flue gas direction are all vertical, and described discharge component is arranged at the rear of described homogenizing plate, and described homogenizing plate forms electric field with described discharge component.
Pre electrified current equalizer herein can be arranged at the electric field region entrance location of electric precipitation demister, so from import current-sharing district, flue gas can be played uniform, reduction of speed effect further at the some passages on homogenizing plate, homogenizing plate by the flue gas flowed such as electric field region；Simultaneously, homogenizing plate and discharge component can form electric field, for cathodic discharge, homogenizing plate also serves as positive plate, when discharge component electric discharge forms electric field, discharge component forms electric field line with homogenizing plate, owing to receiving the effect of cathodic discharge and electric field force, granule in flue gas, by charged and realization deceleration under the back action of electric field force, creates conditions for downstream discharge parts, plate row's efficient arrested particles of electric field.
This utility model makes full use of electric field region inlet space, homogenizing plate is increased in electric field region import, homogenizing plate is while playing flue gas flow equalizing effect, electric field is formed again with the discharge component in electric field region, flue gas is further reduction of speed current-sharing under the effect of both electric field forces, and then improve after discharge parts and the efficiency of plate row's arrested particles, improve the electric field dedusting to flue gas except fog effect.
Compared with prior art, obtain and enter plate row, discharge component forms the identical flue gas flow equalizing effect in electric field region, the length in the import current-sharing district in the electric precipitation demister in this utility model is smaller accordingly, and then reduce the entire length of electric precipitation demister, and substantially increase the dedusting of electric field region except mist ability.
Optionally, described discharge component is the corona wire being connected with high pressure negative electricity, and along vertical flue gas direction, described discharge component is in a row arranged, the equal ground connection of described homogenizing plate.
Optionally, also including the cathode assembly of plate row and the corona discharge trapping granule in flue gas, along flow of flue gas direction, described discharge component is adjacent with first row described plate row, and head arranges described plate ranking in the rear of described discharge component, described plate row's ground connection.
Optionally, some plate bodys that ground is parallel with flow of flue gas direction that is perpendicular to are drawn together in described plate package, and adjacent described plate body is collectively forming the exhaust gases passes for flow of flue gas；And along flow of flue gas direction, electric field region is internally provided with plate row described in some groups, and respectively arranges described cathode assembly and each row described plate row interval layout.
Optionally, described discharge component is arranged between the plate body of two adjacent lateral arrangement at plate described in heel row；Described cathode assembly is also corona wire, and the described cathode assembly of each row is located around the center of its four described plate bodys.
Optionally, the cross section of the passage supplying flue gas to pass through described homogenizing plate offered is circular port or rectangular opening.
Optionally, homogenizing plate is made by one group of water conservancy diversion grid being made up of band steel or angle steel.
In addition, this utility model additionally provides a kind of electric precipitation demister, and including import current-sharing district and electric field region, described import current-sharing district is provided with the first homogenizing plate, also including the pre electrified current equalizer described in any of the above-described item, described pre electrified current equalizer is arranged at the entrance location of described electric field region.
Optionally, also including the auxiliary cleaner being arranged at described electric field region, described auxiliary cleaner is for cleaning the granule of the plate row surface deposition of described homogenizing plate and/or described electric field region.
Optionally, described auxiliary cleaner is jet pipe, and described jet pipe is arranged at top or the side of described electric field region, and described jet pipe is provided with some nozzles, the inner space extraneous gas of described jet pipe or liquid pressure source.
Electric precipitation demister in this utility model has the pre electrified current equalizer of above-mentioned technique effect, therefore electric precipitation demister also possesses the above-mentioned technique effect of pre electrified current equalizer.
Accompanying drawing explanation
Fig. 1 is the plan structure schematic diagram of this utility model electric precipitation demister；
Fig. 2 is electric field region partial enlarged drawing；
Fig. 3 be electric precipitation demister shown in Fig. 1 face structural representation.
Wherein, in Fig. 1 to Fig. 3:
Import current-sharing district 1, electric field region 2, ash bucket 3, homogenizing plate 10, discharge component 100, negative electrode row 20, cathode assembly 200, plate row 30, plate body 300.
Detailed description of the invention
Core of the present utility model is for providing a kind of pre electrified current equalizer and electric precipitation demister, this electric precipitation demister with this pre electrified current equalizer takes into account electric precipitation demister import flue gas flow equalizing and charged dedusting two aspect function, and then the dedusting improving electric precipitation demister removes fog effect.
In order to make those skilled in the art be more fully understood that the technical solution of the utility model, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Refer to Fig. 1, Fig. 2, Fig. 3, Fig. 1 is the plan structure schematic diagram of this utility model electric precipitation demister；Fig. 2 is electric field region partial enlarged drawing；Fig. 3 be electric precipitation demister shown in Fig. 1 face structural representation.
Electric precipitation demister has import current-sharing district 1, electric field region 2, import current-sharing district 1 is generally bell mouth shape, it is mainly used in diffusion flue gas, and then reduce flue gas flow rate so that flue gas is even into subsequent electric field district 2, import current-sharing district 1 is provided with at least one first homogenizing plate, first homogenizing plate is generally the plate body being provided with some equal discharge orifices, and equal discharge orifice is preferably circular hole, and the quantity that arranges of the first homogenizing plate can determine according to the flow velocity etc. passing into electric precipitation demister inside smoke.Not shown first homogenizing plate in Fig. 1 to Fig. 3, but do not hinder those skilled in that art understand and implement the technical program.
Electric field region 2 is provided with the cathode assembly 200 of corona discharge, plate row 30, and cathode assembly 200 can discharge formation electric field.Cathode assembly 200 is generally cathodic discharge, it is of course also possible to be anode discharge, but effect does not have cathodic discharge good.Technical scheme and technique effect is introduced herein for cathode assembly 200 for cathodic discharge.
Plate row 30 is generally some parallel plates 300 of ground connection, and it is parallel with flow of flue gas direction that plate body 300 is perpendicular to ground, and forms the exhaust gases passes of flow of flue gas between adjacent plate body 300.Plate body 300 is perpendicular to ground, and so, the drop dust being arranged 30 seizure by plate can be scattered in time to lower section, avoids resting on plate body 300 surface as far as possible.The quantity of plate row 30 is generally two or more, has preset space length between adjacent panels row 30.Cathode assembly 200 be arranged in plate body 300 formed flue in, and this exhaust gases passes internal discharge formed electric field, it is possible to make enter flue gas in liquid or dust charged after, move to the plate face of plate body 300, and be trapped on plate body 300.
This utility model provides a kind of pre electrified current equalizer, including homogenizing plate 10 and corona discharge device 100, homogenizing plate 10 includes plate body, plate body is provided with mean for some passages that flue gas passes through, plate body and ground, the rear that flow of flue gas direction is all vertical, discharge component 100 is arranged at homogenizing plate 10, homogenizing plate 10 and discharge component 100 form electric field.So, can forming the territory, electric field region 2 of same shape between homogenizing plate 10 and cathode assembly 200, the electric field force suffered by each several part flue gas is essentially identical, be conducive to everywhere flue gas even retardation, diffusion.
Pre electrified current equalizer herein is arranged on the entrance location of electric field region 2, so flows if the flue gas of electric field region 2 is when through homogenizing plate 10 from import current-sharing district 1, and flue gas can be played uniform, reduction of speed effect further by the some passages on homogenizing plate 10；Simultaneously, homogenizing plate 10 and discharge component 100 can form electric field, for cathodic discharge, homogenizing plate 10 also serves as positive plate, and when discharge component 100 electric discharge forms electric field, discharge component 100 and homogenizing plate 10 form electric field line, the trend of electric field line refer to Fig. 1, owing to being subject to the effect of cathodic discharge and electric field force, the granule in flue gas, by charged and realization deceleration under the back action of electric field force, is arranged the 30 efficient arrested particles of electric field create conditions for downstream cathode parts 200, plate.
This utility model can make full use of electric field region 2 inlet space, homogenizing plate 10 is increased in electric field region 2 import, homogenizing plate 10 is while playing flue gas flow equalizing effect, electric field is formed again with the cathode assembly 200 in electric field region 2, flue gas is further reduction of speed current-sharing under the effect of both electric field forces, and then improve follow-up cathode assembly 200 and the efficiency of 30 arrested particles arranged by plate, improve the electric field dedusting to flue gas except fog effect.
Compared with prior art, obtain and enter plate row 30, cathode assembly 200 forms the identical flue gas flow equalizing effect in electric field region 2, the length in the import current-sharing district 1 in the electric precipitation demister in this utility model is smaller accordingly, and then reduce the entire length of electric precipitation demister, and substantially increase the dedusting of electric field region 2 except mist ability.
Specifically, electric field region 2 is internal can be provided with some row's cathode assemblies 200, for the cathode assembly 200 of cathodic discharge, often row's cathode assembly 200 forms negative electrode row 20, in order to make homogenizing plate 10 stronger with the electric field intensity that cathode assembly 200 is formed, flue gas reaches good reduction of speed effect, and first row plate row 30 can be adjacent with discharge component 100, and is positioned at the rear of discharge component 100.
It is appreciated that first row plate row 30 shares a negative electrode row 30 with homogenizing plate 10, the now cathode assembly of row headed by discharge component 100.
In the various embodiments described above, discharge component 100 and cathode assembly 200 can all be specially the corona wire being connected with high pressure negative electricity, along being perpendicular to flue gas direction, the quantity of discharge component 100 is several, in a row arrange, namely at least two corona wire is drawn together in every package, corona wire has cutting-edge structure and the electric discharge that can taper off to a point, the electric field aggregation that point discharge is formed is good, can be applied between two plate bodys 300 that spacing is less, obtain bigger electric field intensity, as long as position and the version of corona wire can rationally be arranged, just can control each electric field unit and be in the state of highfield, outfit of equipment overall dimensions can also be less simultaneously.
It is of course also possible to do not use corona wire, adopt cathode assembly 200 and the discharge component 100 of other forms.
Further, discharge component 100 is arranged between the plate body 300 of 30 liang of adjacent lateral arrangement at heel row plate, namely each described corona wire of first row is arranged between the plate body 300 of 30 liang of adjacent lateral arrangement at plate described in heel row, and other arrange the center that described corona wires are located around its four described plate bodys 300.Each corona wire is positioned at the center of four plate bodys 300, strengthens the electric field unit number of electric precipitation demister on the one hand, it is thus achieved that higher electric field；On the other hand, the electric field line that each electric field is formed moves towards symmetrical, and the granule of trapping is evenly distributed on each plate body 300, utilizes trapping area substantially, improves arresting efficiency.
Certainly, each plate body 300 can also be staggeredly arranged along being perpendicular to flow of flue gas direction, then the territory, electric field region 2 that identical with the present embodiment plate body 300 is formed will reduce to some extent, be unfavorable for electric field intensity.
In the various embodiments described above, the cross section of the passage supplying flue gas to pass through offered on homogenizing plate 10 is circular port, circular port percent opening on homogenizing plate 10 can by experiment or computer simulation Rational choice, simultaneously take account of the homogenizing plate 10 pre electrified effect as ground floor positive plate, the form of airflow uniform distribution and pre electrified and and the first cathode assembly between the needs of choosing of spacing select according to the combined factors such as Gas Parameters, efficiency requirements, and then ensure cathodic electricity corona intensity.
Additionally, homogenizing plate 10 can also be made by the water conservancy diversion grid that a group is made up of band steel or angle steel.
After electric precipitation demister uses a period of time, the surface of homogenizing plate 10 will necessarily deposit certain dust, affects the electric field intensity formed between homogenizing plate 10 and cathode assembly 200.In order to solve above-mentioned technical problem, also arrange as follows further herein.
Further, electric field region 2 is internal is additionally provided with auxiliary cleaner, and auxiliary cleaner is for cleaning the granule of homogenizing plate 10 surface deposition.Auxiliary cleaner is specifically as follows jet pipe, and described jet pipe is arranged at top or the side of electric field region, and described jet pipe is provided with some nozzles, the inner space extraneous gas of described jet pipe or liquid pressure source.
Certainly, auxiliary cleaner can also be other forms, as long as the granule effectively removing homogenizing plate 10 and/or plate row surface deposition can be reached.
It addition, the lower section of electric field region 2 can also arrange ash bucket 3, for collecting the particulate matter being deposited on plate body 300.
Above a kind of pre electrified current equalizer provided by the utility model and electric precipitation demister are described in detail.Principle of the present utility model and embodiment are set forth by specific case used herein, and the explanation of above example is only intended to help to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; under the premise without departing from this utility model principle, it is also possible to this utility model carries out some improvement and modification, these improve and modification also falls in this utility model scope of the claims.
Claims (10)
1. a pre electrified current equalizer, it is characterized in that, discharge component (100) including homogenizing plate (10) and corona discharge, described homogenizing plate (10) includes plate body, described plate body is provided for some passages that flue gas passes through, described plate body and ground, flow of flue gas direction are all vertical, and described discharge component (100) is arranged at the rear of described homogenizing plate, and described homogenizing plate (10) forms electric field with described discharge component (100).
2. pre electrified current equalizer as claimed in claim 1, it is characterized in that, described discharge component (100) is the corona wire being connected with high pressure negative electricity, along being perpendicular to flue gas direction, described discharge component (100) is in a row arranged, described homogenizing plate (10) is ground connection all.
3. pre electrified current equalizer as claimed in claim 2, it is characterized in that, also include plate row (30) of granule in trapping flue gas and the cathode assembly (200) of corona discharge, along flow of flue gas direction, described discharge component (100) is adjacent with first row described plate row (30), and first described plate row (30) of arranging is positioned at the rear of described discharge component (100), described plate row's (30) ground connection.
4. pre electrified current equalizer as claimed in claim 3, it is characterized in that, described plate row (30) includes the some ground plate body parallel with flow of flue gas direction (300) that is perpendicular to, and adjacent described plate body (300) is collectively forming the exhaust gases passes for flow of flue gas；And along flow of flue gas direction, electric field region (2) are internally provided with plate row (30) described in some groups, and respectively arrange described cathode assembly (200) and the described plate row of each row (30) interval layout.
5. pre electrified current equalizer as claimed in claim 4, it is characterised in that described discharge component (100) is positioned between the plate body (300) that (30) two adjacent lateral arrangement arranged by plate described in heel row；Described cathode assembly (200) is also corona wire, and the described cathode assembly of each row (200) is located around the center of its four described plate bodys (300).
6. the pre electrified current equalizer as described in any one of claim 1 to 5, it is characterised in that the cross section of the passage supplying flue gas to pass through offered on described homogenizing plate (10) is circular port or rectangular opening.
7. the pre electrified current equalizer as described in any one of claim 1 to 5, it is characterised in that described homogenizing plate (10) is made by one group of water conservancy diversion grid being made up of band steel or angle steel.
8. an electric precipitation demister, including import current-sharing district and electric field region, described import current-sharing district is provided with the first homogenizing plate, it is characterised in that, also including the pre electrified current equalizer described in any one of claim 1 to 7, described pre electrified current equalizer is arranged at the entrance location of described electric field region.
9. electric precipitation demister as claimed in claim 8, it is characterized in that, also including the auxiliary cleaner being arranged at described electric field region (2), described auxiliary cleaner is used for cleaning the granule of the plate row surface deposition of described homogenizing plate (10) and/or described electric field region (2).
10. electric precipitation demister as claimed in claim 9, it is characterized in that, described auxiliary cleaner is jet pipe, and described jet pipe is arranged at top or the side of described electric field region (2), described jet pipe is provided with some nozzles, the inner space extraneous gas of described jet pipe or liquid pressure source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620184112.1U CN205392746U (en) | 2016-03-10 | 2016-03-10 | Carry on one's shoulder or back electric flow straightener and electric precipitation defroster in advance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620184112.1U CN205392746U (en) | 2016-03-10 | 2016-03-10 | Carry on one's shoulder or back electric flow straightener and electric precipitation defroster in advance |
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| Publication Number | Publication Date |
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| CN205392746U true CN205392746U (en) | 2016-07-27 |
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| CN201620184112.1U Active CN205392746U (en) | 2016-03-10 | 2016-03-10 | Carry on one's shoulder or back electric flow straightener and electric precipitation defroster in advance |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106269256A (en) * | 2016-08-10 | 2017-01-04 | 福建龙净环保股份有限公司 | A kind of electrostatic precipitator for gas cleaning |
| CN108501872A (en) * | 2018-04-17 | 2018-09-07 | 京东方科技集团股份有限公司 | Demister and its control method |
| CN111822146A (en) * | 2019-04-15 | 2020-10-27 | 中国科学院过程工程研究所 | Pre-charging electric appliance |
| CN112756111A (en) * | 2020-12-14 | 2021-05-07 | 苏州天华超净科技股份有限公司 | Air filter device with static elimination function |
-
2016
- 2016-03-10 CN CN201620184112.1U patent/CN205392746U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106269256A (en) * | 2016-08-10 | 2017-01-04 | 福建龙净环保股份有限公司 | A kind of electrostatic precipitator for gas cleaning |
| CN108501872A (en) * | 2018-04-17 | 2018-09-07 | 京东方科技集团股份有限公司 | Demister and its control method |
| US11570854B2 (en) | 2018-04-17 | 2023-01-31 | Beijing Boe Optoelectronics Technology Co., Ltd. | Mist removing device, controlling method thereof, mist removing system and control element |
| CN111822146A (en) * | 2019-04-15 | 2020-10-27 | 中国科学院过程工程研究所 | Pre-charging electric appliance |
| CN112756111A (en) * | 2020-12-14 | 2021-05-07 | 苏州天华超净科技股份有限公司 | Air filter device with static elimination function |
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