Vorrichtung zur erzeugung einer gerichteten strömung in luft

Invention refers itself toward device to production directed StrSmung in air under utilization electrical wind, whereby for the formation of the gas ions a drahtfSrmige Entladungselektrode and as required an auxiliary electrode are intended and the Entladungselektrode at least two aligned, on which the auxiliary electrode abgwandten side of the Entladungselektrode and in the same distance of these backplate electrodes is arranged, of them the Entladungselektrode n chstgelegene Mantellinien parallel to the Entladungselektrode to run parallel to each other and the backplate electrodes, in the cross section seen, one the Entladungselektrode course-turned convex Kr [Jmmung to exhibit and animal distance between the Entladungselektroden and the backplate electrodes at least 50ram betr gt, whereby the Entladungselektroden and backplate electrodes against each other shifts arranged and the Entladungselektroden in o of the centre plane between two backplate electrodes are arranged. With such, e.g. from the WHERE 86/07 500 such device are the backplate electrodes admitted grounded, soda the Entladungselektroden because of a positive potential are. The backplate electrodes are thereby trained rohrf rmig and umschliel3en the electrode arise however the problem, daB, since not only the backplate electrodes are grounded, but also the environment the same, as e.g. the Gebl ise surrounding go use, the lines of flux from the Entladungselektroden not ausschlieSlich to the backplate electrodes run, but also in the environment to distribute and this loads itself. Foreseen yon the efficiency decreased thereby comes it due to the unloading features also to a Ger due to it iuschentwicklung. From the EP HP 0029421 a device is parallel to the production of an arranged StrSmung of a gasf6rmigen of medium under utilization of the electrical wind well-known, which a drahtfSrmige Entladungselektrode and at least two aligned are arranged, on a side of the Entladungselektrode and in the same distance to it backplate electrodes present parallel to each other, itself to drahtf extended their jewels n ichstgelegene edge RMI towards Entladungselektrode, whereby the unloading stream between 10-6 A/cm2 and 10A/Ore2 igt betr. A substantial disadvantage of this well-known L sung is in the circumstance, dal3 the well-known device already at small speeds of the Luff relatively grope quantities of ozone produced, which are due to the control of the Entladungselektrode with negatively polarized high voltage. AuSerdem is loaded negatively thereby not groove the backplate electrode dutch the produced ions, but also the environment. With this well-known L sung the backplate electrodes at animal of the Entladungselektrode exhibit turned side sharp edges, sodaB within this range very high Feldst irken arise, which likewise contributes to a strong ozone development. AuSerdem is intended in the well-known case a multi-level structure of the Gebl of ises, whereby in more seder individual stage ozone is produced. A goal of the invention is it to avoid these disadvantages and a device that initially erw ihnten 3.5 kind to suggest, which is characterised by a high efficiency and is minimized by ozone with that the production. Invention in accordance with i8 this during a device that initially erw ihnten kind by it reached, dab the Entladungselektroden on earth potential to essentially be and the backplate electrodes at a negative potential of at least 30kV and those at least the Entladungselektroden course-turned convex KrL mmung the o backplate electrodes a radius yon 2ram, preferably of at least 4mm exhibits. , Dab a loading of the environment is guaranteed by the suggested MaSnahmen, e.g. the electrode arrangement surrounding go uses, is omitted, since only the backplate electrodes are on a high voltage potential different of the earth potential. Thus also an accordingly high efficiency results. Aul3erdem becomes by the indicated Kr [Jmmungsradius of the Gegen4,5 electrodes guaranteed into that the Entladungselektroden course-turned ranges, dab the Feldst irke no extreme values reached, at which it comes to one st irkeren ozone formation. The high efficiency invention in accordance with iSen Gebl of the ises causes likewise an appropriate reduction of the ozone formation. So invention in accordance with iBe Gebl can SE with lWh for instance 10m3 with a speed of 2msec-1 to 100m3 with a speed of 0,5msecbewegen. This means, 5o more gegenLiber the efficiency after the device the EP-B1-29 421 an improvement of the efficiency around that approx. 10 times. The backplate electrodes exhibit vorteilhafferweise at least at that the Entladungselektrode turned side a nickel coating, chrome coating or chrome nickel a coating. Further the backplate electrodes kSnnen at least at their the Entladungselektrode turned side of one, 55 rustproof alloy with at least one main part from the elements Ni, CR, CO, Ta, W or Zr made its. With a preferential Ausf [3hrungsform of the invention, dab the backplate electrodes a symmetrical FISgelprofil are intended exhibit, whose convex gekr [Jmmte front edge the Entladungselektroden 2 RKs 402,560 B is course-turned, whereby the advantage results very strSmungsgLinstigen flat steel bar hrung air within the range of the Gebl of ses. It is regarding a minimization of the flat steel bars chen spannungsfL] hrenden parts favourably, if the backplate electrodes from one with an electrically leading coating or a metal part, e.g. a Stahlfolie in sections provided trigger from an electrically isolating material, like e.g. Plastic or ceramic(s) is manufactured, whereby the electrically leading coating or that is arranged metal part in the Entladungselektroden course-turned ranges. After a further characteristic of the invention vorgesehens, dab between ever two a flat steel bar (Jgelprofil exhibiting backplate electrodes one can parallel to of them the front edge and the rear edge connecting centre plane of its cross section running electrically leading plate are arranged, which is connected with a potential, gegenLiber that one, because of which the backplate electrodes are, are different. Thus a very large separation is yon aerosols from that the Gebl SE durchstr menden air within the range of the backplate electrodes m6glich. Around the Ausstr mrichtung air from the Gebl SE nnen vary, without guidance mechanisms mechanical in addition plan too mL ssen, can intended be, dab at least two groups next to one another of backplate electrodes at different sources of high voltage lie, those their tension against each other differently in a Zeitma8 yon seconds his minutes ndern to k. FQrden enterprise of the device turned out it as favourable, if the high voltage resting against the backplate electrodes exhibits very clear, at least 10% of their absolute value amounting to high frequency Wechselstromanteile. A further improvement of the F [Jhrung of the air flow by the Gebl SE results, if dab Hilfsund the Entladungselektroden is together-chamfered to a symmetrical flat steel bar Jgelprofil, whereby the sharp rear edges the backplate electrodes are course-turned. Welters can be intended, dab the tension resting against the Entladungselektroden and the auxiliary electrodes in Abh ngigkeit yon the signals of a Temperaturoder of dust sensor regular is, around a controlling of the Gebl of ses in Abh§ngigkeit from certain parameters to erm6glichen. In order to reach one gleichm if3ige distribution of the load, it is favourable, if dab the backplate electrodes within yon the Entladungselektroden the cleared away ranges exhibit an electrically leading edge. In order to guarantee a long life span of the erfindungsgem§Sen device, it is favourable, if the I Inge-specific achievement animal Entladungselektrode maximally 30 Watts per meter betr§gt, preferably maximally Watts per meter free electrode wire or sharp electrode blade. Weiers can be intended, dab the flat steel bars Jgelf6rmigen Entladungselektroden and the dazugehSrenden flat steel bars 3gelf6rmigen backplate electrodes gekrL mmt arranged and abstrSmende air from more cler concave side of this arrangement withdraws. Thus the advantage of one particularly arises gL nstigen flat steel bar hrung the STR mung air as a result of the Gebl SE, whereby the Kr [Jmmungsradius of the arrangement of the backplate electrodes gew to be ihlt in such a way, dab in its cross section continuous Kan§le between the backplate electrodes or this taking up Tr§gern can result, even if the backplate electrodes exhibit a symmetrical flat steel bar Jgelprofil appropriate cross section. Further characteristics and advantages of the invention are utert on the basis the design more nether erl. The Fig shows. 1 a diagram of different parameters one invention in accordance with 13en Geniuses and yon mechanical Gebl§sen, Fig. 2 erfindungsgem§Be configurations of Entladungselektroden, auxiliary electrodes and backplate electrodes, Fig. 3 further training of a Gebl§ses gas-electronic invention in accordance with Sen, Fig. 4 an opinion of a modified Ausf hrungsform a Entladungselektrode and a backplate electrode, Fig. 5 an opinion of a further AusffJhrungsform of an electrode arrangement with a Entladungselektrode, an auxiliary electrode and a backplate electrode, Fig. 6 an gas-electronic Gebl§se with electronically steered change of the blowing out direction, Fig. 7 an gas-electronic Gebl SE, into which an electrostatic filter is integrated, Fig. 8 an gas-electronic Gebl ise with integrated electrostatic filter, Fig. 9 an gas-electronic Gebl§se with protection circuit and Fig. 10 a further Ausf (Jhrungsform invention in accordance with 13en of a Gebl of ses. The Fig. 1 shows a GegenLiberstellung of performance data of a erfindungsgem§Sen Gebl of ises and mechanical Gebl sen. The volumetric air flow v is segeschwindigkeit in [m3/h] on the left ordinate and/or the specific Gebl§searbeit in [Ws/m3] on the right ordinate and the Gebl in [msec-1] on the abscissa laid on. One sees, dab flit speeds under 2msec-1 the Gebl SE a mechanical Gebl SE Liberlegen gas-electronic invention in accordance with SE is. RK 402,560 B Fig. the Gebl SE of ezielten ozone values gas-electronic with a erfindungsem Ben shows 2 as function of the Gebl segeschwindigkeit. In order these small values, which ite at the detection limit of modern MeBger lies, to evaluate, for mul3 one it with the maximally permitted job concentration of 100ppb in relationship set. Fig. a first Ausf0hrungsform erfinclungsgem Ben of a Gebl of ses with drahtf RMI towards Entladungselektroden 1, which are of auxiliary electrodes 2 against mechanical Besch digung gesch0tzt, shows 3. The Drahtst rke betr gt 100u.m, the diameter of the auxiliary electrodes 5mm. To each Entladungselektrode two parallel and equivalent far removed backplate electrodes 3 gegen0ber lie. Further jecle Entladungselektrode 1 their two backplate electrodes 3 with one neighbour each tilt itself. The Entladungselektroden and their auxiliary electrodes are on earth potential, against what the backplate electrodes lie on minus 50kV. Fig. invention in accordance with IL e Ausf0hrungsform of the gas-electronic Gebl ses shows 4, with which Entladungsdr hte and auxiliary electrodes are replaced by sharp cuts 4, which are arranged to the backplate electrodes 3. (3egenelektroden 3 are continued at their closest to each other lying sides in two to each other parallel plates 5, sodaB moved air in this Kan len themselves without turbulence moved. Two units of Entladungselektroden and their two backplate electrodes, lying next to each other, are twisted now around its common backplate electrode 3a so against each other, dab the Entladungselektroden neighbouring to two gehSrenden however at a backplate electrode setting plate 5 and 5a to a representative FI0gel 6 unite, by this erfindungsgem§Be arrangement do not only arise a focusing of the Luftstr mung, but the air eddies behind the backplate electrodes are avoided, since this R0ckseiten STR is mungstechnisch missing. Fig.5 shows Aufund GrundriB of one invention in accordance with Ben Ausf0hrungsform of the messerfSrmigen Entladungdelektrode 4 with its sharp cut 7, which disappears itself at end of the backplate electrode 3 of their zur0ckzieht whereby the cut. Fig.6 shows a FI0gel 6 from plastic with more metallized, the Entladungselektrode 1 zugewand2s of ter page 3 and a likewise metallized edge 8 at the turned away side. 9reif't in a sheet separates the auxiliary electrode 2 tract not only drahtf the rmige Entladungselektrode 1 around the high voltage f0hrenden part of 3 the fl0gelf RMI towards backplate electrode 6. Fig.7 shows invention in accordance with ii] e Ausf0hrungsform with two groups of fl0gelf, lying next to each other, RMI towards backplate electrodes 6 and appropriate messerfSrmigen Entladungselektroden, which are headed for by two different high voltage units. ndern this unabh ngig from each other and with different temporal succession their voltage levels, then indicates the Gebl dominating in each case seseite the STR mungsrichtung. Thus the StrSmungsrichtung of the Gebl ses invention in accordance with B without moved parts can be indert. One sees the gotten jammed Metallblech 3 of the backplate electrode and two different Ausf0hrungsformen of a metallic FI0gelkante 8. exemplary at a FI0gel. Fig.8 shows one invention in accordance with i3e arrangement also into the Gebl SE integrated electrostatic filters. For this purpose only the fl0gelf6rmigen backplate electrodes 6 is ingert verl and arranged between them the separation plates 9 present at different potential. As a result of the long ion ways yon the Entladungselektrode 4 to the backplate electrode 6 arises a high specific loading of the aerosols, which are separated in the field between separation plate and fl0gelfSrmiger Gegenelek'trode with high efficiency. Fig.9 shows a protection circuit, which permits the operation of the Gebl of ises without Ber0hrungsschutz. Since the Gebl SE benStigt among other things for applications within the household range hardly more than 200 river, I Bt the internal resistance of the source of high voltage so limited, dab the high voltage ber0hrungssicher is. Nevertheless invention in accordance with 3e the protection circuit already permits a disconnection to the high voltage t0, before the hand a f0hrenden Tell reached a high voltage. This is reached invention in accordance with B by it, dab the connection source of high voltage 10 - Entladungselektrode 1 with a Br0ckenschaltung g 1, 1:! 2, R3, R4 durchgef0hrt will, whose first center M lies on earth, w the appropriate second center M2 an amplifier of rker V zugef0hrt becomes hrend. This arrangement has a row invention in accordance with ii] it advantages. The Br0ckenschaltung is so sensitively, thus dab the bias current is already indicated, which arises with the Ann herung a hand to the backplate electrode 3. Only quite mii3t it with Ann herung kapazit tsarmer Gegenst the inde ion stream, which is then drawn from the backplate electrode 3 or also that river is missing, if a Tell of the unloading stream is branched off yon the Entladungdelektrode 1 to the backplate electrode 3. Fig.10 shows further invention in accordance with fuel element training of the gas-electronic Gebl of ses as a s5 electrostatic filter. Drahtf RMI towards Entladungselektroden the 1 are strained between two triggers 12, which hold also the auxiliary electrodes 2. The backplate electrodes 3 are zusammengefaBt together with the filter bodies 9 and the Feldplatten 11 by further laterally arranged triggers 12 held RKs 402,560 B present at same potential as the backplate electrodes 3 and with the help of two preformed plastic plates 13 to a Kasette, which can be removed from the Gesamtger t and cleaned in a Geschirrsp01maschine. Preferably the high voltage cascade 14 is poured in a preformed a hollow in one of the plastic plates 13 with a cover 15, in which the AnschluBkontakte 16 is accommodated to the high voltage transformer. The Verguf3masse 17 is appropriate for the temperature load by the washing process. The advantage this erflndungsgem Ben Ausf0hrung exists in the simple Zuf0hrung the high voltage to the backplate electrodes 3, the filter bodies 9 and the Feldplatten 11 on the one hand and on the other hand avoids one the wiring of the Gesamtger ites with high-voltage cables, whereby also leakage and contamination of the Ger of tes with free loads are avoided. For this purpose the appropriate triggers 12 into the preformed hollow gef0hrt are provided and bolted, with LStSsen 18. T5 1. PatentansprLiche device to production arranged StrSmung in air under utilization electrical wind, whereby for the education of the gas ions one drahtf rmige Entladungselektrode and as required an auxiliary electrode are intended and the Entladungselektrode at least two aligned, on which the auxiliary electrode abgwandten side of the Entladungselektrode and in the same distance yon these backplate electrodes is arranged, of them the Entladungselektrode n ichstgelegene Mantellinien parallel to the Entladungselektrode to run parallel to each other and the backplate electrodes, in the cross section seen, an animal Entladungselektrode a course-turned convex KrQmmung to exhibit and the distance between the Entladungselektroden (1) and the backplate electrodes (3) at least 50mm betr gt, whereby the Entladungselektroden (1) and backplate electrodes (3) shifts arranged and the Entladungselektroden (1) in the centre plane against each other between two backplate electrodes (3) angeorclnet, by it, dab the Entladungselektroden (1) are characterized at earth potential essentially lie and the backplate electrodes (3) at a negative potential yon at least 30kV and those the Entladungselektroden (1) course-turned convex KrL mmung the backplate electrodes a radius yon 2mm, preferably of at least 4ram exhibits at least. 2. Device according to requirement 1, by it characterized, dab the backplate electrodes exhibit (3) a symmetrical FILigelprofil, whose convex gekr0mmte front edge (6) the Entladungselektroden (1) is course-turned. 3, device according to requirement 1 or 2, by it characterized, da¢3 between ever two a FI0gelprofil exhibiting backplate electrodes (3) one parallel to of them the front edge (6) and the rear edge connecting centre plane of its cross section running electrically leading plate (9), which is connected with a potential, the gegen0ber that one is arranged, at which the backplate electrodes (3) lie, is different. 4. The AnspriJche 1 to 3, by it characterized, daf3 at least two groups next to one another of backplate electrodes (83) because of different sources of high voltage, those are to device after one their tension against each other differently in a Zeitma8 von Sekunden his minutes ndern. Device after one the Anspr0che 1 to 4, by it characterized, dab in the backplate electrodes (3) lying close high voltage very clear, at least 10% of their absolute value amounting to high frequency Wechselstromanteile exhibit. o 7. Device after one the Anspr [Jche 1 to 5, by it characterized, dab Hilfsund the Entladungselektroden (2, 3) to a symmetrical FI0gelprofil (4) zusammengefal3t is, whereby the sharp rear edges the backplate electrodes (3) is course-turned. Device after one the AnsprLiche 1 his 6, by it characterized, dab in the Entladungselektroden (1) and the auxiliary electrodes (2) lying close tension in Abh ingigkeit yon the signals of a Temperaturoder of dust sensor regular is. 8. Device according to requirement 2. thereby marked, dab the backplate electrodes from one by an electrically leading coating or a metal part, e.g. a Stahlfolie in sections