Contact apparatus for a liquid and a gas

The invention concerns a contact apparatus for a liquid and a gas, whose contact bodies untetgebraehter in a housing is compound from folded or curved vertical layers, whereby between the same the liquid supplied by means of a distributor arranged over it flows at the same time downward and by Einlaßund discharge openings in the apparatus Gehänsegeleitete gas with a horizontal Srxömungskompouente is hindurchgeffthrt. Such contact contacts are used for example with advantage in cooling towers - likewise in addition, for other purposes; both media can be in the simplest case water and air. With that well-known contact contacts a continuous gap is present between two neighbouring, folded or curved layers each at least over their substantial TeiI, so that by the formed channels through-currentend liquid by a Kraft working under an angle against their direction of flow within the contact body a certain lateral Verschiebtmg experiences; even if now in the channels of the contact body both media in arranged currents meet one another crosswise to each other, then the liquid from the contact body can be out-blown also in droplets with the gas flow in these cases in the contact body the Fltissigkeit not over the whole layers evenly is if thus distributed - to separate rather the zone met first by air is moistened not at all in front water and is not rinsed sufficiently purely thus e.g. in a Kühlturrn -, then a precipitation of salts, mineral materials and such forms on the vertical layers, by which after short time the channels can be clogged. After the invention become now with Kontakt-K0rpem of the initially described kind for a flat steel bar [Issigkeit and a gas this sewing hurry repaired thereby that in the contact body in neighbouring, vertical layers the foldings or waves each other - preferably under flat angle crosses and that at those layers also in Strömungsriehtung of the gas diagonally rising waves the same against the horizontal it has a larger pitch angle than diagonally downward the arranged waves of the intermediate layers of the other crowd. In this contact body the channels formed between the vertical layers receive Anordntmg a width constantly changing over their length by these crosswise, whereby during the passage of both media also their directions of flow change repetitive; far by the existing large angle between the crossing shapings of the layers and the direction of flow of the media - in particular those of the gas - an optimal exchange both media is reached; in this favourably trained contact body above all flüssigeMedittm along the whole folded layers it is distributed perfectly evenly whereby fllr the change in status - e.g. for cooling of water -, intended in each case, results a very high efficiency and thus a maximum efficiency. In this contact apparatus appropriately diagonally rising waves have the same a pitch angle smaller than 45° preferably between 20-35o at those vertical layers also in direction of flow of the gas. With a particularly favourable execution form those are symmetrical, at both crowds of the vertical layers appropriate foldings or waves against Längsachsedes of the body - i.e. under opposite same angle - bent, whereby in the complete unit of the contact bodies themselves are diagonally used. In the designs are represented as Ausführnngsbeispiele of the contact apparatus according to invention for liquid and one gas in Fig.1 and 2 two cooling towers in the vertical profile; further Fig.3 points to the second cooling tower in accordance with Fig.2 a cutout the contact bodies in the Schanbild. With the Kühiturm veramchattliehten in Fig.1 are two contact bodies--10-- in a housing --12-- symmetrically to each other assigned, which down a collector --14--for water forms; this housing --12-- furthermore has at both side panels openings --40-- ftlr denEinlaß the gaseous medium (arrow 42) - thus air, which the Kontaltt bodies--10-- essentially hotiI0 zontal flows through and afterwards toward the arrow --44-- to one common discharge opening--18--arrived, in a fan --20-- with driving motor --22-- is assigned; both contact Körpem --10-- furthermore becomes from even by distributors --24-- Water supplied, which simplicity for the sake of stationary with outlets --26-- are suggested - likewise in addition, rotary or in any way move-borrowed to be trained can; the contact bodies--10-- become thus from both media in crossing currents crossed out. Ieder contact body--10-- consists now of inside, vertical layers - which are preferably all folded or blown, whereby in neighbouring layers these waves or foldings--23 and/or. 30-- cross each other; the layers rest together and against the points of contact by means of a suitable bonding agent stuck; in this contact Körpem--10-- thus passing duct systems are both in the horizontals and in the vertical one with constantly varying width - and zw. of zero at the Bertthrungsstellenbis to the double height that blowing - formed between the together lying layers. In these contact contacts--10-- assigned, formed layers are vorzugsweiseflüssigkeltsbzw, water augend and consist appropriately of cellulose oddr inorganic fibers, like asbestos; Papieroder asbestos layers will by Imprägniemng with one hiefür suitable substance e.g. with a resin, like phenolic resin - humidity steady and can also at the Berühmngsstellen by such a resin be interconnected. In this contact body becomes due to, each other the crossing foldings or waves appropriate at the layers --28 and/or 30--dieherizental air flowing in --42-- too constantly repetitive change of direction in a forced manner; thus the turbulence of flowing through air is affected favorably - and zw. on the one hand regarding the contact with the water - and on the other hand due to air resistance low held. In the contact contacts --10-- from above (with 26) water flowing in moves along the layers as film on a course wound as it were downward, whereby for each Oberfläeheneinheit of the assigned layers between both media a very intensive exchange will receive. From in the housing --12-- down assigned collector --14-- becomes the cooled water by a line --34--, in which a valve --36-- attached is, to vain ananderer place planned use away-led and from there in well-known way to the distributors --34-- led back; in this collector --14-- becomes the water level by means of a float --33-- regulated, so that new water for replacing losses - among other things by evaporation in the Kentakt body --I0-- one supplies. With the cooling tower in accordance with Fig.1 are the contact bodies --10-- quaderförmig trained, whereby the two assigned crowds of layers the Falrungen or waves --28 and/or 30--, related to the inlet flank for air - the same angle of inclination possess; within the cooling tower are however both contact bodies --10-- inclined/slanted and lie on carrying grounds --46-- with (Sffnungen --48-- for the Abrirmen of the water to the collector --14-- up. Hiedurch receive now in direction of flow --42-- air upward arranged foldings --30-- a steeper pitch angle than for instance with horizontal ground; the skew of the foldings directed downward --23-- becomes against it in relation to the direction of the air flow --42-- accordingly more shallowly. Through dieseAnerdnung - is called by the special mutual situation of the foldings or waves --28 and 30-- in denschräggestellten contact contacts--10-- - one holds as it were the herabrirmende water in his essentially vertical direction and one drags along by the waagrechren crossing out air flow in the lowest possible degree: Became in these inclined/slanted contact contacts --10-- indeed the Luftstrem turned off - then the water became that the Einlaßöffnnng--40-- the air flow turned Seitenkante gutters; on the other hand by the active air flow down-running water relative relative the Austrittst5 side of air will hang-blow; with appropriate dimensioning and situation of the contact body to lift now these two components straight looks up, so that over the whole contact body an even distribution of the water is ensured. With the second Ausffihrungsform of the Kfihlturmes in accordance with Fig. 2 and 3 is the quaderförmige contact body --10-- vertically set up: at the SeMchten however the foldings are in such inclination-attached that those a crowd of the associated foldings - _30-- a larger angle against fi the Waagreehte form than the same crossing foldings --28-- the other crowd of layers; in this way the same effect is received, as during the arrangement of the BeispIelos described first. With all these execution forms of the contact body --10-- have the foldings or waves rising diagonally in Durchströmrlchtung of air --30-- a pitch angle against the horizontal one of less than 45° - preferably between 20-35o: At the intermediate layers attached different - against it crossing is called - the foldings or waves --28-- can by the contact body --10-- horizontally or even against the direction of flow of air weakly rising run; those the water reserved nuclear component becomes naturally urnso more largely, the more ste/ler the first mentioned foldings --30-- in Strömungsriehtung of air upward and the more weakly the other foldings --28-- are downward bent. The liquid which can be treated in the contact apparatus can be a salt solution - for example one solution of a hygroscopic salt in water; in certain cases kommenanstatt water naturally also different liquids with high steam pressure in consideration. The erffndungsgemäfle contact apparatus can be operated quite also with hot water od. such, in order to use the waste heat profitably in an air flow.