NO134086B - - Google Patents
Download PDFInfo
- Publication number
- NO134086B NO134086B NO21272A NO21272A NO134086B NO 134086 B NO134086 B NO 134086B NO 21272 A NO21272 A NO 21272A NO 21272 A NO21272 A NO 21272A NO 134086 B NO134086 B NO 134086B
- Authority
- NO
- Norway
- Prior art keywords
- zone
- impact
- plates
- filter
- filter according
- Prior art date
Links
- 238000006386 neutralization reaction Methods 0.000 claims 1
- 239000000428 dust Substances 0.000 description 11
- 230000008021 deposition Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/44—Colour synchronisation
- H04N9/465—Synchronisation of the PAL-switch
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N11/00—Colour television systems
- H04N11/06—Transmission systems characterised by the manner in which the individual colour picture signal components are combined
- H04N11/12—Transmission systems characterised by the manner in which the individual colour picture signal components are combined using simultaneous signals only
- H04N11/14—Transmission systems characterised by the manner in which the individual colour picture signal components are combined using simultaneous signals only in which one signal, modulated in phase and amplitude, conveys colour information and a second signal conveys brightness information, e.g. NTSC-system
- H04N11/16—Transmission systems characterised by the manner in which the individual colour picture signal components are combined using simultaneous signals only in which one signal, modulated in phase and amplitude, conveys colour information and a second signal conveys brightness information, e.g. NTSC-system the chrominance signal alternating in phase, e.g. PAL-system
- H04N11/165—Decoding means therefor
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Processing Of Color Television Signals (AREA)
- Electrostatic Separation (AREA)
Description
Flertrinns elektronisk filter. Multi-stage electronic filter.
Ved kjente totrinns elektroniske filtere med en ioniseringssone og en til dette grensende nedslagssone vil erfaringsmes-sig det i ioniseringssonen elektrisk opp-ladede støv hovedsakelig slå seg ned på de forreste kantpartier av nedslagsplatene. Her vokser støvsj iktene ved lengere drift av filtere eller ved utfiltrering av større støvkonsentrasjoner til en tykkelse som er mange ganger større enn tykkelsen av støvsj iktet i midten eller ved utgangssiden av nedslagsplatene. Dette tykke støvned-slag som kan føre til brodannelse mellom platene, begunstiger opptreden av elek-triske overslag ved krypestrømmer, løsriv-ning av støv, økning av trykktapet og be-grensning av støvnedslaget, hvilket be-grenser effekten, virkningsgraden og drift-sikkerheten av filteret i betydelig grad. In the case of known two-stage electronic filters with an ionization zone and an impact zone adjacent to this, the electrically charged dust in the ionization zone will mainly settle on the front edge parts of the impact plates. Here, the dust layers grow during longer operation of filters or when filtering out larger dust concentrations to a thickness that is many times greater than the thickness of the dust layer in the middle or at the outlet side of the impact plates. This thick dust deposition, which can lead to bridging between the plates, favors the occurrence of electric flashovers in the case of creep currents, detachment of dust, increase of the pressure loss and limitation of the dust deposition, which limits the effect, efficiency and operational safety of the filter to a considerable extent.
Ifølge oppfinnelsen oppheves disse mangler ved at filteret har tre eller flere trinn. Et slikt filter består prinsipielt i en ioniseringssone med to eller flere i mediets gjennomgangsretning etter hverandre an-ordnede nedslagssoner med forskjellig størrelse av plateavstanden, idet et foregå-ende platesett har større avstand enn det etterfølgende. Disse platesett kan i og for seg være adskilte fra hverandre. De kan imidlertid også være sammenhengende, slik at f. eks. hver annen pluss- og mi-nusplate rager forover og får av den grunn en større innbyrdes avstand. Ved adskilt oppbygning kan man også tenke seg an-vendelse av forskjellig elektrisk spenning på de forskjellige nedslagsplatesett, idet ioniseringsspenningen f. eks. tilføres første platesett. Man kan dessuten anordne sær-skilt ioniseringssone for hvert nedslagsplatesett. Sluttelig kan også platene diver-gere, slik at de løper mot hverandre i mediets strømningsretning. According to the invention, these defects are eliminated by the filter having three or more stages. Such a filter basically consists of an ionization zone with two or more impingement zones arranged one behind the other in the direction of passage of the medium with different sizes of the plate spacing, with a preceding set of plates having a greater distance than the following one. These plate sets can in and of themselves be separate from each other. However, they can also be connected, so that e.g. every other plus and minus plate protrudes forwards and therefore gets a greater distance between them. With a separate structure, one can also imagine the application of different electrical voltage to the different impact plate sets, as the ionization voltage e.g. is added to the first plate set. You can also arrange a separate ionization zone for each impact plate set. Finally, the plates can also diverge, so that they run towards each other in the direction of the medium's flow.
Noen utførelseseksempler på oppfinnelsen skal forklares nærmere under hen-visning til tegningen. Some embodiments of the invention will be explained in more detail with reference to the drawing.
Fig. 1 viser et tretrinns filter med en ioniseringssone 1 og to innbyrdes adskilte nedslagssoner 2 og 3. Det medium som skal renses gjennomstrømmer filteret i ret-ning av pilen A. En del av støvet 4 setter seg da ned på motelektroden 5 til emisjons-elektroden 6 i ioniseringssonen 1. Ved gjennomgang av mediet gjennom den etterføl-gende nedslagssone 2 vil videre en del 7 av støvet slå seg ned på platene 8 som har innbyrdes stor avstand, mens resten 9 av støvet i mediet vil slå seg ned på platene 10 som har mindre innbyrdes avstand i Fig. 1 shows a three-stage filter with an ionization zone 1 and two mutually separated impact zones 2 and 3. The medium to be cleaned flows through the filter in the direction of arrow A. Part of the dust 4 then settles on the counter electrode 5 to emission the electrode 6 in the ionization zone 1. When the medium passes through the subsequent impact zone 2, part 7 of the dust will further settle on the plates 8, which have a large distance from each other, while the rest 9 of the dust in the medium will settle on the plates 10 which have less mutual distance i
nedslagssonen 3. På denne måte hindres at støvet hovedsakelig slår seg ned i sone 2 og hindrer fri gjennomgang mellom platene, slik at den ovenfor beskrevne mangel i så henseende ikke kan opptre. impact zone 3. In this way, the dust is prevented from settling mainly in zone 2 and preventing free passage between the plates, so that the above-described deficiency cannot occur in this respect.
Det er også mulig å oppnå dette mål ved et filter ifølge fig. 2 hvor ioniseringssonen 11 etterfølges av en nedslagssone 12, som er dannet på den måte at enkelte plater, f. eks. hver tredje 13 i nedslagssonen 14 rager ut over de øvrige plater 15, slik at der dannes en nedslagssone 12 mot ioniseringssonen 11. It is also possible to achieve this goal with a filter according to fig. 2 where the ionization zone 11 is followed by an impact zone 12, which is formed in such a way that some plates, e.g. every third 13 in the impact zone 14 protrudes above the other plates 15, so that an impact zone 12 is formed against the ionization zone 11.
Claims (5)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP340271A JPS5136091B1 (en) | 1971-01-29 | 1971-01-29 | |
JP340171A JPS5132335B1 (en) | 1971-01-29 | 1971-01-29 |
Publications (2)
Publication Number | Publication Date |
---|---|
NO134086B true NO134086B (en) | 1976-05-03 |
NO134086C NO134086C (en) | 1978-08-08 |
Family
ID=26336973
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO21272A NO134086C (en) | 1971-01-29 | 1972-01-28 | DECODING DEVICE FOR A COLOR TV RECEIVER |
Country Status (13)
Country | Link |
---|---|
AT (1) | AT322648B (en) |
AU (1) | AU462225B2 (en) |
BE (1) | BE778607A (en) |
CH (1) | CH549920A (en) |
DE (1) | DE2202911C3 (en) |
DK (1) | DK145790C (en) |
ES (1) | ES399293A1 (en) |
FI (1) | FI53905C (en) |
GB (1) | GB1351403A (en) |
IT (1) | IT947123B (en) |
NL (1) | NL7201165A (en) |
NO (1) | NO134086C (en) |
SE (1) | SE367114B (en) |
-
1972
- 1972-01-21 DE DE19722202911 patent/DE2202911C3/en not_active Expired
- 1972-01-26 AU AU38350/72A patent/AU462225B2/en not_active Expired
- 1972-01-26 GB GB374772A patent/GB1351403A/en not_active Expired
- 1972-01-27 AT AT63672A patent/AT322648B/en not_active IP Right Cessation
- 1972-01-28 FI FI22772A patent/FI53905C/en active
- 1972-01-28 DK DK38772A patent/DK145790C/en active
- 1972-01-28 BE BE778607A patent/BE778607A/en not_active IP Right Cessation
- 1972-01-28 SE SE97072A patent/SE367114B/xx unknown
- 1972-01-28 ES ES399293A patent/ES399293A1/en not_active Expired
- 1972-01-28 NL NL7201165A patent/NL7201165A/xx unknown
- 1972-01-28 NO NO21272A patent/NO134086C/en unknown
- 1972-01-29 CH CH131472A patent/CH549920A/en not_active IP Right Cessation
- 1972-01-29 IT IT1998372A patent/IT947123B/en active
Also Published As
Publication number | Publication date |
---|---|
DE2202911C3 (en) | 1975-09-04 |
BE778607A (en) | 1972-05-16 |
ES399293A1 (en) | 1975-05-01 |
DK145790B (en) | 1983-02-28 |
DE2202911B2 (en) | 1974-10-10 |
NL7201165A (en) | 1972-08-01 |
AU462225B2 (en) | 1975-06-19 |
AT322648B (en) | 1975-05-26 |
FI53905B (en) | 1978-05-02 |
CH549920A (en) | 1974-05-31 |
GB1351403A (en) | 1974-05-01 |
DE2202911A1 (en) | 1973-04-05 |
NO134086C (en) | 1978-08-08 |
IT947123B (en) | 1973-05-21 |
AU3835072A (en) | 1973-08-02 |
SE367114B (en) | 1974-05-13 |
FI53905C (en) | 1978-08-10 |
DK145790C (en) | 1983-08-15 |
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