EP4363121A1 - Elektrostatischer abscheider - Google Patents
Elektrostatischer abscheiderInfo
- Publication number
- EP4363121A1 EP4363121A1 EP22738351.0A EP22738351A EP4363121A1 EP 4363121 A1 EP4363121 A1 EP 4363121A1 EP 22738351 A EP22738351 A EP 22738351A EP 4363121 A1 EP4363121 A1 EP 4363121A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- electrostatic precipitator
- insulating body
- precipitator
- ring device
- chamber
- 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.)
- Pending
Links
- 239000012717 electrostatic precipitator Substances 0.000 title claims abstract description 24
- 230000001681 protective effect Effects 0.000 claims abstract description 24
- 239000012716 precipitator Substances 0.000 claims abstract description 10
- 238000004140 cleaning Methods 0.000 claims description 11
- 239000007789 gas Substances 0.000 description 21
- 239000002245 particle Substances 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000012811 non-conductive material Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000013589 supplement 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
- B03C3/34—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
- 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
Definitions
- the present invention relates to an electrostatic precipitator, comprising a hollow-shaped insulating body which is arranged in a housing of the precipitator and which is connected at its lower end to a protective tube which opens into a chamber of the precipitator.
- Electrostatic precipitators are known in principle from the prior art.
- the document GB 888,953 discloses a generic electrostatic precipitator which has a hollow-shaped insulating body arranged in a housing of the precipitator.
- a cylindrical ring element is arranged at the lower end of the insulating body and opens into a cylindrical protective tube.
- a protective gas is introduced via inlet openings in a cover plate of the insulating body, which is intended to prevent the inflow of a gas contaminated with dirt particles from the deposition chamber.
- the undirected gas flow of the protective gas causes turbulence in such a cylindrical protective tube and thus the dirt particles are transported upwards into the insulating body, which are then deposited on the inner wall of the insulating body.
- published application DE 29 14 241 A1 proposes a protective tube for an insulating body of an electrostatic precipitator, which has a convex shape.
- the specific shape of the protective tube is also intended to prevent a contaminated gas from flowing from the deposition chamber into the interior of the insulating body.
- the present invention is therefore based on the object of providing an improved electrostatic precipitator, in particular providing an electrostatic precipitator whose protective tube prevents the upward transport of a gas contaminated with dirt particles from the separation chamber and a deposit of dirt particles on the inner wall of the protective tube
- the object is achieved by an electrostatic precipitator having the features of patent claim 1.
- the electrostatic precipitator according to the invention comprises a hollow-shaped insulating body which is arranged in a housing of the precipitator and which is connected at its lower end to a protective tube which opens into a chamber of the precipitator.
- the separator is characterized in that it has a ring device arranged between the hollow insulating body and the protective tube, which comprises a plurality of individual slit nozzles arranged around the circumference, through which a cleaning gas can flow into the chamber of the separator.
- the several individual slit nozzles arranged around the circumference generate a uniform flow of cleaning gas directed in the direction of the separator chamber over the entire cross-sectional area of the protective tube, so that penetration of the dirt particles into the interior of the insulating body is effectively prevented. Due to the fact that the flow is directed downwards, the inner wall of the protective tube is also continuously flushed with the cleaning gas, so that a deposit of dirt particles on the inner wall of the protective tube is also effectively prevented.
- the cleaning gas is understood to be an inert gas.
- the cleaning gas is therefore advantageously selected from the series comprising nitrogen, argon, carbon dioxide, lean air and/or mixtures thereof.
- lean air is understood by the person skilled in the art to mean an air mixture of air and carbon monoxide which has a reduced proportion by volume of oxygen, preferably an oxygen proportion of less than 2.0% by volume.
- the cleaning gas is particularly preferably nitrogen, since this increases the dielectric strength.
- the ring device has the multiple circumferentially disposed single slot nozzles in only one vertical plane.
- the ring device can have the plurality of individual slit nozzles arranged over the circumference in two, three or more vertical planes. The individual slit nozzles can then be arranged vertically to one another and in alignment or offset to one another.
- the several individual slit nozzles arranged over the circumference can be connected to form a continuous slit nozzle, so that the ring device then comprises at least one ring-shaped slit nozzle extending over the entire circumference in a minimal configuration.
- the ring device can comprise several of these slotted nozzles, which are then arranged in two, three or more vertical planes of the ring device.
- the at least one or more annular slot nozzles and/or each of the plurality of individual slot nozzles is/are aligned at an angle of 5 to 85°, preferably at an angle of 20 to 50°, relative to the horizontal. This creates a further improved, directed, uniform flow of the cleaning gas over the entire cross-sectional area of the protective tube in the direction of the separator chamber.
- FIG. 2 shows a variant embodiment of the ring device in a perspective view
- FIG. 3 shows the embodiment variant of the ring device shown in FIG. 2 in a sectional representation.
- FIG. 1 shows an embodiment variant of the electrostatic precipitator 1 according to the invention in a partial sectional view.
- Housing 2 in which a hollow-shaped insulating body 3 is arranged.
- the insulating body 3 is made of an electrically non-conductive material, such as porcelain or a ceramic, and is conical in shape in the present case.
- the insulating body 3 has a cover element 4 on which a rod-shaped electrode 5 is arranged in a hanging manner. the electrode
- the housing 2 of the electrostatic precipitator 1 has an annular base element 7 at its lower end, from which a protective tube 8 also extends into the chamber 6 .
- the electrostatic precipitator 1 has a ring device 9 between the hollow insulating body 3 and the protective tube 8, which in the present embodiment variant comprises several individual slot nozzles 10 arranged around the circumference, through which a cleaning gas is fed into the protective tube 8 or via the
- Protective tube 8 can flow into the chamber 6 of the separator 1 (see Figures 2 and 3).
- the cleaning gas for example nitrogen, is fed to the ring device 9 via a feed line 11 .
- the ring device 9 is explained in more detail below with reference to FIGS. In FIG. 2, the ring device 9 is shown in a perspective view, with a ring segment being cut out.
- the ring device 9 comprises an outer ring-shaped gas chamber 12, which in the present case is divided into two and is therefore formed from two semicircular segments 13 (see FIG. 3). Each of the two outer segments 13 is fluidically connected to the feed line 11 via an opening 14 . Furthermore, the ring device 9 comprises an inner ring-shaped gas chamber 15 which is divided into four inner segments 16 in the present case. Both gas chambers 12, 15 are separated from one another by a partition wall 17. Four openings 18 are provided in the dividing wall 17, via which a fluidic connection between the outer and inner gas chambers 12, 15 or the respective segments 13, 16 is formed.
- the ring device 9 has a plurality of webs 19 which are arranged between the individual slot nozzles 10 and which circumferentially separate the plurality of individual slot nozzles 10 from one another.
- the present plurality of individual slot nozzles 10 are each aligned at an angle of 40° with respect to a horizontal.
Landscapes
- Electrostatic Separation (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102021206742.5A DE102021206742A1 (de) | 2021-06-29 | 2021-06-29 | Elektrostatischer Abscheider |
| PCT/EP2022/066812 WO2023274780A1 (de) | 2021-06-29 | 2022-06-21 | Elektrostatischer abscheider |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4363121A1 true EP4363121A1 (de) | 2024-05-08 |
Family
ID=82446559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22738351.0A Pending EP4363121A1 (de) | 2021-06-29 | 2022-06-21 | Elektrostatischer abscheider |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4363121A1 (de) |
| KR (1) | KR20240014498A (de) |
| DE (1) | DE102021206742A1 (de) |
| WO (1) | WO2023274780A1 (de) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB414182A (en) * | 1933-04-05 | 1934-08-02 | Sturtevant Eng Co Ltd | Improvements in electrostatic precipitating plant |
| GB888953A (en) | 1959-12-19 | 1962-02-07 | Metallgesellschaft Ag | Electrostatic precipitators |
| CH453450A (de) * | 1964-12-17 | 1968-06-14 | Schloz Motor Condensator | Druckdichte Hochspannungsdurchführung, insbesondere für einen gasgefüllten Elektrofilter oder -flocker |
| DE2914241C2 (de) | 1979-04-09 | 1983-08-04 | Environmental Elements Corp., 21227 Baltimore, Md. | Elektroabscheider |
| EP2457637B8 (de) * | 2010-11-24 | 2016-09-21 | General Electric Technology GmbH | Verfahren und Boilersystem zum Reinigen eines kohlendioxidreichen Abgases |
-
2021
- 2021-06-29 DE DE102021206742.5A patent/DE102021206742A1/de active Pending
-
2022
- 2022-06-21 WO PCT/EP2022/066812 patent/WO2023274780A1/de not_active Ceased
- 2022-06-21 EP EP22738351.0A patent/EP4363121A1/de active Pending
- 2022-06-21 KR KR1020237044992A patent/KR20240014498A/ko active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023274780A1 (de) | 2023-01-05 |
| KR20240014498A (ko) | 2024-02-01 |
| DE102021206742A1 (de) | 2022-12-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
| 17P | Request for examination filed |
Effective date: 20240129 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
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| P01 | Opt-out of the competence of the unified patent court (upc) registered |
Free format text: CASE NUMBER: APP_44325/2024 Effective date: 20240730 |
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| RAP3 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SMS GROUP GMBH |
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| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) |