CN108114814A - A kind of electrostatic precipitator - Google Patents
A kind of electrostatic precipitator Download PDFInfo
- Publication number
- CN108114814A CN108114814A CN201711374329.4A CN201711374329A CN108114814A CN 108114814 A CN108114814 A CN 108114814A CN 201711374329 A CN201711374329 A CN 201711374329A CN 108114814 A CN108114814 A CN 108114814A
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- sheet discharge
- casing
- discharge electrode
- pole plate
- discharge
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/02—Plant or installations having external electricity supply
- B03C3/04—Plant or installations having external electricity supply dry type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/40—Electrode constructions
- B03C3/41—Ionising-electrodes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/86—Electrode-carrying means
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- Electrostatic Separation (AREA)
Abstract
The invention belongs to the plasma discharge fields of low temperature nonequilibrium state, provide a kind of electrostatic precipitator, including：Casing, casing both ends are respectively equipped with air inlet and exhaust outlet, and casing lower end is equipped with " W " type dust collecting trough；Supply unit is arranged at casing top, and high-voltage DC power supply is provided for sheet discharge electrode；Corona generating device is made of sheet discharge electrode and ground connection pole plate, is arranged in casing venting cavity body.Compared with prior art, advantage of the invention is that brush corona discharge passage distribution caused by sheet discharge electrode is more uniform, and with higher breakdown voltage so that the maximum discharge energy density higher of electrode structure.The carrying capacity of dust granules can be effectively improved based on larger discharge energy density, is finally reached the purpose of high-effective dust-removing.The present invention fixes sheet discharge electrode array by pcb board, can effectively improve the insulation performance of device, while is also equipped with carrying out quick-adjustsing advantage to discharge arrays arrangement, discharge power.
Description
Technical field
The invention belongs to the plasma discharge fields of low temperature nonequilibrium state, are filled more particularly, to a kind of electrostatic precipitation
It puts.
Background technology
China's economy, social fast development result in huge energy consumption, this causes Particulate Pollution to become most serious
One of atmospheric environment problem, the pollution problem of wherein fine particle (PM2.5) is especially prominent.Particularly frequently occur in recent years
Haze weather the production and social activities of people generation are seriously affected.And dust-extraction unit has as flying dust in removal flue gas
Efficacious prescriptions formula is used widely in the industry such as chemical industry, oil, metallurgy, power generation.The discharging structure of existing electrostatic precipitator
Mostly line-board-like or line-cartridge type.To improve the discharge energy density of device, polar curve and pole plate are further developed, wherein pole
Line has entelechy line, prickle wire, helix, astroid etc., and region of discharge is generated by tip, but can also limit simultaneously electric in gap
The intensity and uniformity of field；Pole plate has c-type plate, V-type plate etc..But the corona discharging area that these discharging structures are formed is smaller,
It is merely present near polar curve, the corona discharging area of large area can not be realized in discharge channel, thereby results in fly ash granule
Charged effect it is undesirable.Further, since around polar curve electric field distribution it is more uneven, under slightly higher operation voltage easily because
Thermal instability and cause gap breakdown, therefore the discharge energy density of electrode structure is limited significantly.
The content of the invention
For the disadvantages described above or Improvement requirement of the prior art, the present invention provides a kind of electrostatic precipitator, purposes
It is to solve existing electrostatic precipitator since corona discharge passage is uneven, breakdown voltage is relatively low, and maximum discharge power is close
The technical issues of spending the deficiencies of relatively low and causing dust removing effects bad.
The present invention provides a kind of electrostatic precipitator, including：Casing, both ends are respectively equipped with air inlet and exhaust outlet,
Ventilation cavity is formed between the air inlet and exhaust outlet, dust collecting trough is equipped in the lower end of the casing；Corona fills
It puts, is arranged in venting cavity body, including：Sheet discharge electrode and ground connection pole plate；Supply unit is arranged at the top of the casing
End, for providing high-voltage DC power supply for the sheet discharge electrode；And rapping apparatus, close to corona generating device, use
The fly ash granule adsorbed on the ground connection pole plate is shaken off in by periodically vibrating, and passes through the dust collecting trough and discharges.
Further, the dust collecting trough is W type structures；After dust falls into the dust collecting trough of W type structures, due to W type structures
The inclination cell wall of dust collecting trough, dust is discharged by gravity autodeposition in slot bottom, simultaneously as wind is not easy to be blown into W type structures
Dust collecting trough can avoid the reentrainment of dust generated due to wind.
Further, the sheet discharge electrode is 30mm × 10mm rectangles, and it is 3mm's to be equipped with radius in its sharp corner
Chamfering.
Further, multiple sheet discharge electrodes form after arrays that pole plate is parallel is staggeredly placed with the ground connection,
Form S type ventilating ducts.The distribution of brush corona discharge passage is more uniform caused by sheet discharge electrode, and is hit with higher
Wear voltage so that the maximum discharge energy density higher of electrode structure.Dirt can be effectively improved based on larger discharge energy density
The carrying capacity of angstrom particle is finally reached the purpose of high-effective dust-removing.
Further, the sheet discharge electrode and the distance between ground connection pole plate are adjustable.
Further, the material of the sheet discharge electrode and ground connection pole plate is stainless steel.Stainless steel has corrosion resistant
Erosion, heat safe advantage, suitable for adverse circumstances (the indoor external environment such as wet, soda acid), avoiding reduces since electrode gets rusty
The situation of discharge power.
Further, formed by the high-pressure polar plate made of pcb board to install by multiple sheet discharge electrodes
Array, the insulation performance of device can be effectively improved, at the same be also equipped with to discharge arrays arrangement, discharge power quickly adjusted
Advantage.
In general, by the above technical scheme conceived by the present invention compared with prior art, it can obtain down and show
Beneficial effect：
(1) sheet discharge electrode used in apparatus of the present invention is after voltage rise, and generation corona is put first at chamfering
Electricity.With the lasting rise of voltage, corona discharging area is gradually developed from sheet discharge electrode both ends to centre, final region of discharge
Domain takes electrode edge, and bright blue tentiform region of discharge is formd in corona discharge passage.Novel sheet discharge electrode
Corona distribution it is more uniform, effectively reduce the probability caused punch through due to thermal instability.Therefore, there is higher breakdown
Voltage and higher maximum discharge energy density.
(2) apparatus of the present invention can be needed according to actual conditions between adjusting sheet discharge electrode and being grounded between pole plate
Away from, discharge power is suitably adjusted according to discharge inception voltage and breakdown voltage so as to reach, further reach control adsorption efficiency mesh
's.
(3) apparatus of the present invention design S type passages, to lengthen effective length of the fly ash granule by corona discharging area, carry
The charged efficiency with absorption of high fly ash granule.In addition, based on longer useful effect passage, device can be to because generating during rapping
Reentrainment of dust problem is effectively solved.
(4) present invention fixes sheet discharge electrode array by pcb board, can effectively improve the insulation performance of device, together
When be also equipped with carrying out quick-adjustsing advantage to discharge arrays arrangement.
Description of the drawings
Fig. 1 is the structure diagram of electrostatic precipitator provided by the invention；
Fig. 2 is the top view of corona generating device provided by the invention；
Fig. 3 is the structural parameters figure of corona generating device provided by the invention；
Wherein：1 is casing, and 2 be supply unit, and 3 be corona discharge assembly, and 4 be rapping apparatus, and 5 be dust collecting trough, and 6 be PCB
High-pressure polar plate, 7 be sheet discharge electrode, and 8 be ground connection pole plate.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, it is right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below
Conflict is not formed each other to can be combined with each other.
A kind of electrostatic precipitator provided by the invention, including：Casing, supply unit, corona generating device and rapping dress
It puts；Wherein, casing is divided from structure, can be divided into upper casing and lower casing.Wherein, supply unit is provided with above upper casing
And rapping apparatus, lower casing is provided with W type dust collecting troughs；It is divided from ventilation device, casing is equipped with air inlet, venting cavity successively
Body and gas outlet are equipped with corona generating device in cavity of ventilating.The material of casing can be stainless steel and iron plate.Supply unit,
It is connected with corona generating device, and is the stable negative polarity d. c power supply of its raising.Corona generating device is by sheet discharge electrode
Array and ground connection pole plate composition.Wherein, the present invention can install sheet discharge electrode by the high-pressure polar plate made of pcb board
Array.The material of sheet discharge electrode and ground connection pole plate is stainless steel.
As one embodiment of the present of invention, sheet discharge electrode is 30mm × 10mm rectangles, and half is equipped in its sharp corner
Footpath is the chamfering of 3mm.When the voltage being applied on sheet discharge electrode gradually increases, due to the local electric field strength at chamfering
It is higher, therefore corona discharge occurs first for the position in piece-sheet separation.Then raised with voltage, corona discharge passage
Gradually from both ends to sheet discharge electrode development of central area, uniform brush corona discharge passage is finally formed in piece-sheet separation.
It is charged by the flying dust completion in complex method flue gas by electronics, cation and the anion that corona discharge generates,
Under the action of electric field force, filthy particle completes absorption, is finally reached the purpose of dedusting.
In embodiments of the present invention, to realize the charged of fly ash granule and absorption, the present invention puts ground connection pole plate and sheet
Electric electrod-array is parallel to be staggeredly placed, and forms S types ventilating duct to improve the dust removing effects of device.Rapping apparatus occurs close to corona
Device.It will be grounded adsorb fly ash granule on pole plate by periodically vibrating and shake off, the W types dust collecting trough for passing through bottom of shell is arranged
Go out.
For further description electrostatic precipitator provided in an embodiment of the present invention, first it is described in detail such as with reference to Fig. 1-Fig. 3
Under：
Electrostatic precipitator provided by the invention includes：Casing 1, supply unit 2, corona generating device 3, rapping apparatus 4；
Casing 1, divides from structure, can be divided into upper casing and lower casing.Wherein, supply unit 2 is provided with above upper casing and is shaken
Device 4 is beaten, lower casing is provided with W types dust collecting trough 5；It is divided from ventilation device, casing 1 is equipped with air inlet, venting cavity successively
Body and gas outlet.Wherein, corona generating device 3 is equipped in cavity of ventilating.The material of casing 1 is stainless steel iron plate.
Supply unit 2 is connected with corona generating device 3, and is the stable negative polarity d. c power supply of its raising.
Corona generating device 3 includes：The array and ground connection pole plate 8 be made of multiple sheet discharge electrodes 7；Wherein, pass through
The high-pressure polar plate 6 made of pcb board installs sheet discharge electrode array 7.The material of sheet discharge electrode 7 and ground connection pole plate 8
It is stainless steel.
Wherein, sheet discharge electrode 7 can be 30mm × 10mm rectangles, and the chamfering that radius is 3mm is equipped in its sharp corner.
When the voltage being applied on sheet discharge electrode 7 gradually increases, since the local electric field strength at chamfering is higher,
Corona discharge occurs first for the position in piece-sheet separation.Then raised with voltage, corona discharge passage gradually from both ends to
Sheet discharge electrode development of central area finally forms uniform brush corona discharge passage in piece-sheet separation.Pass through corona discharge
Electronics, cation and the anion of generation are charged by the flying dust completion in complex method flue gas, in the effect of electric field force
Under, filthy particle completes absorption, is finally reached the purpose of dedusting.
To realize the charged of fly ash granule and absorption, the present invention is by sheet discharge electrode array 7 and is grounded 8 parallel friendship of pole plate
It is misplaced to put, S types ventilating duct is formed to improve the dust removing effects of device.Rapping apparatus 4 is close to corona generating device 3.Pass through the cycle
Property vibration will be grounded the fly ash granule that adsorbs on pole plate and shake off, discharged by the W types dust collecting trough 5 of bottom of shell.
It is to be applied between sheet discharge electrode 7 and ground connection pole plate 8 that electrostatic precipitator operation principle provided by the invention, which is,
Add DC high voltage, make corona discharge occurs around sheet discharge electrode.Under the action of high field intensity, the gas in gap occurs
The reactions such as ionization by collision, excitation, attachment, decomposition generate the electronics, anion and cation of free movement.It discharges in sheet electric
In extremely neighbouring corona discharge region, substantial amounts of electronics, anion and cation are allowed to complete lotus by being attached on fly ash granule
Electric process.In piece-sheet separation under the action of forceful electric power field force, charged fly ash granule can be moved to pole plate, and complete to adsorb.Into
One step under the rapping effect of vibrating device, under flying dust is shaken off from ground connection pole plate, passes through the W type dust collecting troughs of casing lower end
Discharger.
In addition, in electrostatic precipitator provided by the invention, sheet discharge electrode and the distance for being grounded pole plate are adjustable, can root
High wafer-like discharge electrode and the spacing being grounded between pole plate are suitably adjusted according to the numerical value of discharge inception voltage.Meanwhile to electric discharge
Power requirement is little or in the case that output voltage is little, can be by changing between high wafer-like discharge electrode and ground connection pole plate
Away from corona discharge occurs for reduction discharge inception voltage, achievees the effect that eliminate fly ash granule.If desired strengthen discharge power, tune up height
Wafer-like discharge electrode and ground connection pole plate between away from direct current power source voltage.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, all any modification, equivalent and improvement made within the spirit and principles of the invention etc., should all include
Within protection scope of the present invention.
Claims (7)
1. a kind of electrostatic precipitator, which is characterized in that including：
Casing (1), both ends are respectively equipped with air inlet and exhaust outlet, and venting cavity is formed between the air inlet and exhaust outlet
Body is equipped with dust collecting trough (5) in the lower end of the casing；
Corona generating device (3) is arranged in the venting cavity body, including：Sheet discharge electrode (7) and ground connection pole plate (8)；
Supply unit (2) is arranged at the top of the casing, for providing high-voltage DC power supply for the sheet discharge electrode；
And
Rapping apparatus (4) close to corona generating device (3), is periodically vibrated and will inhaled on the ground connection pole plate for passing through
Attached fly ash granule is shaken off, and passes through the dust collecting trough (5) discharge.
2. electrostatic precipitator as described in claim 1, which is characterized in that the dust collecting trough (5) is W type structures.
3. electrostatic precipitator as claimed in claim 1 or 2, which is characterized in that the sheet discharge electrode (7) for 30mm ×
10mm rectangles are equipped with the chamfering that radius is 3mm in its sharp corner.
4. such as claim 1-3 any one of them electrostatic precipitators, which is characterized in that multiple sheet discharge electrodes
(7) it is parallel with the ground connection pole plate (8) after formation array to be staggeredly placed, form S type ventilating ducts.
5. such as claim 1-4 any one of them electrostatic precipitators, which is characterized in that the sheet discharge electrode (7) with
It is adjustable to be grounded the distance between pole plate (8).
6. such as claim 1-5 any one of them electrostatic precipitators, which is characterized in that the sheet discharge electrode (7) with
The material for being grounded pole plate (8) is stainless steel.
7. such as claim 1-6 any one of them electrostatic precipitators, which is characterized in that pass through the high pressure made of pcb board
Pole plate (6) installs the array formed by multiple sheet discharge electrodes (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711374329.4A CN108114814B (en) | 2017-12-19 | 2017-12-19 | Electrostatic dust collection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711374329.4A CN108114814B (en) | 2017-12-19 | 2017-12-19 | Electrostatic dust collection device |
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| Publication Number | Publication Date |
|---|---|
| CN108114814A true CN108114814A (en) | 2018-06-05 |
| CN108114814B CN108114814B (en) | 2020-02-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711374329.4A Active CN108114814B (en) | 2017-12-19 | 2017-12-19 | Electrostatic dust collection device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108906325A (en) * | 2018-06-11 | 2018-11-30 | 华中科技大学 | A kind of semiclosed tunnel vehicle exhaust remove device in city |
| CN109277197A (en) * | 2018-09-21 | 2019-01-29 | 湖北邵环保科技有限公司 | A kind of high-pressure electrostatic precipitation method and apparatus |
| CN112218494A (en) * | 2020-09-29 | 2021-01-12 | 四川长虹电器股份有限公司 | Ion fan radiator |
| CN112728718A (en) * | 2020-12-28 | 2021-04-30 | 杭州永青环保技术有限公司 | Plasma fire-fighting smoke-removing equipment and smoke-removing and person-saving method thereof |
| CN113399116A (en) * | 2021-06-28 | 2021-09-17 | 江苏先竞等离子体技术研究院有限公司 | Blade-shaped corona electrode and discharging device using same |
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| CN203778198U (en) * | 2014-04-22 | 2014-08-20 | 金烈水 | Coulomb electric dedustor |
| CN203830153U (en) * | 2014-02-19 | 2014-09-17 | 中国日用化学工业研究院 | High-gas-velocity dish type cathode for wet type electrostatic demister |
| CN204107662U (en) * | 2014-09-16 | 2015-01-21 | 孙红梅 | Be provided with the air purifier rotating corona electrode |
| CN205436022U (en) * | 2016-03-22 | 2016-08-10 | 赵云峰 | Electrostatic particulate matter trap and dish discharges thereof |
| CN107159464A (en) * | 2017-06-19 | 2017-09-15 | 江苏中建材环保研究院有限公司 | A kind of wet electrical dust precipitator novel cathode line |
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| CN203678535U (en) * | 2013-12-27 | 2014-07-02 | 武汉龙净环保科技有限公司 | Electric dust collector capable of remarkably improving dust collection efficiency |
| CN203830153U (en) * | 2014-02-19 | 2014-09-17 | 中国日用化学工业研究院 | High-gas-velocity dish type cathode for wet type electrostatic demister |
| CN203778198U (en) * | 2014-04-22 | 2014-08-20 | 金烈水 | Coulomb electric dedustor |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108906325A (en) * | 2018-06-11 | 2018-11-30 | 华中科技大学 | A kind of semiclosed tunnel vehicle exhaust remove device in city |
| CN109277197A (en) * | 2018-09-21 | 2019-01-29 | 湖北邵环保科技有限公司 | A kind of high-pressure electrostatic precipitation method and apparatus |
| CN112218494A (en) * | 2020-09-29 | 2021-01-12 | 四川长虹电器股份有限公司 | Ion fan radiator |
| CN112218494B (en) * | 2020-09-29 | 2022-03-08 | 四川长虹电器股份有限公司 | Ion fan radiator |
| CN112728718A (en) * | 2020-12-28 | 2021-04-30 | 杭州永青环保技术有限公司 | Plasma fire-fighting smoke-removing equipment and smoke-removing and person-saving method thereof |
| CN113399116A (en) * | 2021-06-28 | 2021-09-17 | 江苏先竞等离子体技术研究院有限公司 | Blade-shaped corona electrode and discharging device using same |
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| Publication number | Publication date |
|---|---|
| CN108114814B (en) | 2020-02-14 |
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