EP4017642A1 - Electrostatic dust separator for purifying air and other dielectric fluids - Google Patents
Electrostatic dust separator for purifying air and other dielectric fluidsInfo
- Publication number
- EP4017642A1 EP4017642A1 EP21739963.3A EP21739963A EP4017642A1 EP 4017642 A1 EP4017642 A1 EP 4017642A1 EP 21739963 A EP21739963 A EP 21739963A EP 4017642 A1 EP4017642 A1 EP 4017642A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- collecting electrodes
- length
- electric filter
- fluid
- filter according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000012530 fluid Substances 0.000 title claims description 41
- 239000000428 dust Substances 0.000 title abstract 2
- 230000005684 electric field Effects 0.000 claims abstract description 14
- 238000005192 partition Methods 0.000 claims description 39
- 239000012717 electrostatic precipitator Substances 0.000 claims description 28
- 238000004140 cleaning Methods 0.000 claims description 15
- 230000003044 adaptive effect Effects 0.000 claims description 6
- 230000007423 decrease Effects 0.000 claims description 6
- 210000000352 storage cell Anatomy 0.000 claims description 6
- 230000003247 decreasing effect Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract description 8
- 239000012535 impurity Substances 0.000 abstract description 5
- 239000007789 gas Substances 0.000 abstract description 2
- 238000000746 purification Methods 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 7
- 239000000203 mixture Substances 0.000 description 6
- 239000007787 solid Substances 0.000 description 3
- 210000004027 cell Anatomy 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 239000000443 aerosol Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000008241 heterogeneous mixture Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- 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
- B03C3/09—Plant or installations having external electricity supply dry type characterised by presence of stationary flat electrodes arranged with their flat surfaces at right angles to the gas stream
-
- 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
- B03C3/025—Combinations of electrostatic separators, e.g. in parallel or in series, stacked separators or dry-wet separator combinations
-
- 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
- B03C3/45—Collecting-electrodes
- B03C3/47—Collecting-electrodes flat, e.g. plates, discs, gratings
-
- 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
- B03C3/66—Applications of electricity supply techniques
- B03C3/68—Control systems therefor
-
- 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
- B03C3/66—Applications of electricity supply techniques
- B03C3/70—Applications of electricity supply techniques insulating in electric separators
-
- 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
- B03C5/00—Separating dispersed particles from liquids by electrostatic effect
- B03C5/02—Separators
-
- 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
- B03C5/00—Separating dispersed particles from liquids by electrostatic effect
- B03C5/02—Separators
- B03C5/022—Non-uniform field separators
- B03C5/026—Non-uniform field separators using open-gradient differential dielectric separation, i.e. using electrodes of special shapes for non-uniform field creation, e.g. Fluid Integrated Circuit [FIC]
-
- 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
- B03C2201/00—Details of magnetic or electrostatic separation
- B03C2201/30—Details of magnetic or electrostatic separation for use in or with vehicles
Definitions
- the invention relates to electrical devices for cleaning dielectric fluids with mechanical contaminants. It can be used to purify the air or various dielectric gases and liquids.
- DE 202020 103805 U1 discloses an electrostatic filter device for dielectric liquids.
- the device comprises a housing, a set of collecting electrodes in the form of metal plates and partitions made of dielectric material, the electrodes and partitions forming cells in which the impurities are collected.
- the invention provides an electrostatic precipitator for cleaning dielectric fluids, preferably air, the electrostatic filter having a housing which contains a plurality of collecting electrodes, the collecting electrodes forming at least two packets that are electrically separated from one another.
- each package of collecting electrodes is designed to generate an inhomogeneous electric field when exposed to flux voltage.
- adjacent packages are separated from one another by means of an elongated dielectric partition. It is preferred that the collecting electrodes are divided into at least three packets, the length of the partition walls between adjacent packets increasing, decreasing or being identical in the direction of flow of the fluid.
- the number of collecting electrodes in each packet increases, decreases or remains the same in the direction of flow of the fluid.
- the length of the packets of collecting electrodes increases, decreases or remains the same in the direction of flow of the fluid.
- the length, d2, of the further elongated dielectric partition wall is greater than the length, d1, of the elongated dielectric partition wall, the value of the length, d1 or d2, of the elongated dielectric partition walls being equal to or greater than the length, c1 or c2, of the package of collecting electrodes, which is located upstream in front of the respective partition.
- the length of the next packet of collecting electrodes is greater than the length of the previous packet of collecting electrodes.
- the length, d2, of the further elongated dielectric partition wall is smaller than the length, d1, of the elongated dielectric partition wall, the length, d1 or d2, of the elongated dielectric partition walls being equal to or greater than the length, c1 or c2, of the package of collecting electrodes, which is located upstream in front of the respective partition.
- the length of the next bundle of collecting electrodes is less than that of the previous bundle of collecting electrodes.
- the housing has high-voltage bushings for connecting adaptive high-voltage supply devices.
- each collecting electrode has at least one longitudinal channel for the passage of the fluid.
- adjacent collecting electrodes of the same package define a memory cell between them.
- each longitudinal channel fluidly connects a pair of adjacent storage cells.
- the housing has an inlet and an outlet for the fluid at its respective end regions.
- the housing contains, adjacent to its respective end regions, in each case a fluid-permeable, preferably air-permeable, delimitation plate, which spacing the collecting electrodes from the wall of the housing and electrically isolating them.
- the invention provides a filter device comprising a preferred electrostatic precipitator and an adaptive high voltage source for supplying different electrical high voltage direct current for supplying the packets of collecting electrodes with different potentials.
- the invention creates a use of an electric filter for cleaning dielectric fluids, in which several spaced apart and electrically separated packets of collecting electrodes can each be acted upon and / or calibrated with different electrical potentials in such a way that the strength of the electrical field in the flow direction of the fluid, preferably the air, changed.
- the strength of the electric field increases or decreases in the direction of flow of the fluid, preferably the air.
- the fluid preferably the air
- the fluid is filtered in stages in the direction of flow.
- the invention creates a cleaning method for cleaning dielectric fluids, preferably air, by means of an electrostatic precipitator, the electrostatic precipitator having a housing containing a plurality of collecting electrodes, the collecting electrodes forming at least two electrically separated packages and the fluid flowing through the packages.
- Each package of collecting electrodes is preferably subjected to high voltage and an inhomogeneous electrical field is generated.
- the electrostatic precipitator preferably filters the fluid in stages.
- the electrostatic precipitator can be a previously described preferred electrostatic precipitator.
- a fluid is, for example, a mixture of a fluid and solid particles.
- the fluid can be gaseous or liquid.
- the fluid itself can also be a mixture, for example a mixture of several immiscible liquids, i.e. an emulsion.
- the fluid mixture is, for example, a heterogeneous mixture such as an aerosol, a suspension or a mixture of an emulsion and solid particles.
- the fluid is air.
- Electrostatic precipitators or also called electrostatic precipitators, which are based on the electrostatic principle, are known for cleaning the fluids from impurities.
- One idea is to divide the hitherto only pack of collecting electrodes into several packs of collecting electrodes, for example by inserting elongated dielectric separating walls between the packs.
- different values of the potential difference of adaptive high-voltage power supply units can be supplied for each package of collecting electrodes.
- the pins previously used, which fulfill the wiring function, can be replaced by high-voltage bushings.
- the result is a structure of independent packages, each optimized for cleaning particles of the required size.
- an electrostatic precipitator described here there is the possibility of generating different non-uniform electrical fields in sections in the electrostatic precipitator so that the fields can be optimized for cleaning particles of different sizes in dielectric fluids, namely in air or liquid. This can increase the efficiency of the electrostatic precipitator.
- FIG. 1 shows a longitudinal section through a first embodiment of an electric filter
- FIG. 2 shows a longitudinal section through a second embodiment of an electric filter
- FIG 3 shows a longitudinal section through a third embodiment of an electric filter.
- Fig. 1 shows an electrostatic precipitator, which can also be referred to as an electrostatic precipitator.
- the electrostatic precipitator comprises a housing 1 with nozzles for an inlet 2 and an outlet 3.
- the housing 1 has high-voltage bushings 4 and 5.
- Boundary plates 6 and 7 are accommodated in the housing 1 at the respective end regions of the housing 1.
- the electrostatic precipitator contains a plurality of packages of collecting electrodes 8 in its housing 1.
- the packages have a length c1 along the longitudinal direction of the housing 1.
- the collecting electrodes 8 of each package are separated by elongated dielectric partitions 11.
- the collecting electrodes 8 have longitudinal channels 9. Adjacent collecting electrodes 8 of the same package define storage cells 10 between them.
- the collecting electrodes 8 of adjacent packets are separated from one another by elongated dielectric partition walls 12 of length d1.
- the electrostatic precipitator works as follows:
- the flow of a contaminated dielectric medium for example air or liquid, is fed into the electrical cleaner through inlet 2. If there is a potential difference at each packet of collecting electrodes 8, correspondingly optimized inhomogeneous electric fields occur in the channels, under the effect of which the impurities are carried away from the main flow of the medium into the storage cells 10 and deposited on the collecting electrodes 8 of the packs.
- the cleaned medium exits through outlet 3.
- Fig. 1 shows a unitary configuration for building packs of collecting electrodes 8, the value of the length d1 of the elongated dielectric partition walls being equal to or greater than the length c1 of the packets.
- the length of all packets is identical and equal to the length c1.
- FIG. 2 shows a longitudinal section of an electrostatic precipitator 1 with the construction of an increasing number of collecting electrodes 8 in each package.
- the designation symbols in FIG. 2 are identical to the reference symbols in FIG. 1, in addition to the elongated dielectric partition walls 12, further elongated dielectric partition walls 13 having a length d2 being arranged.
- the length d2 of the further elongated dielectric partition walls 13 is greater than the length d1 of the elongated dielectric partition walls 12. Furthermore, the corresponding value of the length d1 or d2 of the elongated dielectric partition walls 12, 13 is the same as or greater than the length c1 or c2 of the package that is located in front of the respective partition wall 12, 13. The length of the next packet is greater than that of the previous packet (c1> c2, c2> c3).
- Table 1 The following conditions, shown in Table 1, apply to the increasing configuration of bundles of collecting electrodes:
- FIG. 3 shows a longitudinal section of an electric filter 1 with the structure of a decreasing number of collecting electrodes 8 in each package.
- the designation symbols in FIG. 3 are identical to the designation symbols in FIG. 2.
- the length d2 of the further elongated dielectric partition wall 13 is smaller than the length d1 of the elongated dielectric partition wall 12.
- the length d1 or d2 of the elongated dielectric partition walls 12, 13 is equal to or greater than that Length c1 or c2 of the package located in front of the respective partition 12, 13.
- the length of the next packet is less than that of the previous packet (c1 ⁇ c2, c2 ⁇ c3).
- the dielectric medium for example air or liquid
- the dielectric medium can be cleaned using inhomogeneous electric fields in each package of collecting electrodes, the electric field being optimized for particles of the required size depending on the cleaning task at hand, so that the cleaning efficiency increases significantly .
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electrostatic Separation (AREA)
- Filtering Materials (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202020103805.2U DE202020103805U1 (en) | 2020-07-01 | 2020-07-01 | Electrostatic precipitator or separator, filter device and use of a filter device |
DE202021100251.4U DE202021100251U1 (en) | 2020-07-01 | 2021-01-20 | Electrostatic precipitators for cleaning air and other dielectric fluids |
PCT/DE2021/100564 WO2022002315A1 (en) | 2020-07-01 | 2021-07-01 | Electrostatic dust separator for purifying air and other dielectric fluids |
Publications (2)
Publication Number | Publication Date |
---|---|
EP4017642A1 true EP4017642A1 (en) | 2022-06-29 |
EP4017642B1 EP4017642B1 (en) | 2024-08-28 |
Family
ID=71844198
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21739963.3A Active EP4017642B1 (en) | 2020-07-01 | 2021-07-01 | Electrostatic filter for cleaning of air and other dielectric fluids |
Country Status (5)
Country | Link |
---|---|
US (1) | US20230356237A1 (en) |
EP (1) | EP4017642B1 (en) |
DE (2) | DE202020103805U1 (en) |
IL (1) | IL299594A (en) |
WO (1) | WO2022002315A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202020103805U1 (en) | 2020-07-01 | 2020-07-14 | Mikroninter-Dig Gmbh | Electrostatic precipitator or separator, filter device and use of a filter device |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1267777A (en) * | 1970-04-30 | 1972-03-22 | American Standard Inc | Improvements in electrostatic precipitators |
JP3527690B2 (en) * | 2000-07-04 | 2004-05-17 | 住友重機械工業株式会社 | Electric dust collector |
EP1967277B1 (en) * | 2007-03-05 | 2018-09-26 | General Electric Technology GmbH | A method of controlling the order of rapping the collecting electrode plates of an ESP |
RU2420356C1 (en) * | 2010-05-11 | 2011-06-10 | Геннадий Алексеевич Копылов | Method of dielectric fluid electrical cleaning and device to this end |
RU2492934C2 (en) * | 2010-07-06 | 2013-09-20 | Геннадий Алексеевич Копылов | Electric cleaner with different electrode gaps |
CN107008571A (en) * | 2017-04-19 | 2017-08-04 | 山西晋浙环保科技有限公司 | A kind of electric cleaner |
DE202020103805U1 (en) | 2020-07-01 | 2020-07-14 | Mikroninter-Dig Gmbh | Electrostatic precipitator or separator, filter device and use of a filter device |
-
2020
- 2020-07-01 DE DE202020103805.2U patent/DE202020103805U1/en active Active
-
2021
- 2021-01-20 DE DE202021100251.4U patent/DE202021100251U1/en active Active
- 2021-07-01 US US18/040,176 patent/US20230356237A1/en active Pending
- 2021-07-01 WO PCT/DE2021/100564 patent/WO2022002315A1/en active Application Filing
- 2021-07-01 IL IL299594A patent/IL299594A/en unknown
- 2021-07-01 EP EP21739963.3A patent/EP4017642B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
WO2022002315A4 (en) | 2022-03-03 |
WO2022002315A1 (en) | 2022-01-06 |
EP4017642B1 (en) | 2024-08-28 |
DE202021100251U1 (en) | 2021-02-03 |
DE202020103805U1 (en) | 2020-07-14 |
US20230356237A1 (en) | 2023-11-09 |
IL299594A (en) | 2023-03-01 |
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