AT85328B

AT85328B - Process for softening water.

Info

Publication number: AT85328B
Authority: AT
Inventors: Emil Efran
Original assignee: Emil Efran
Priority date: 1910-09-21
Filing date: 1910-09-21
Publication date: 1921-08-25

Description

  

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  Verfahren zur Enthärtung von Wasser. 



    In den österreichischen Patentschriften Nr. 21827 und Nr. 39541 sind Verfahren beschrieben, nach welchen die Bildung von Schichten festen Kesselsteines auf den Heizflächen eines Dampfkessels dadurch vermieden werden soll, dass das Speisewasser vor Einbringung in den Kessel, mittels Dampfes, ohne Zusatz irgendwelcher. Chemikalien, durchgekoèht und hierdurch ein Teil der temporären Härtebildner in Form einer feinen Trübung ausgefällt wird.

   Dort wo es sich um grössere Wassermengen handelt, werden diese Verfahren natur-   
 EMI1.1 
 Wasser oder nur ein entsprechender Teil desselben mittels Dampfes, von der Kesselfeuerung abstreichenden Rauchgasen oder besonderer Feuerung durchgekocht, demselben aber dabei gleichzeitig auch   Ca (OH) 2   und, wenn das Wasser grössere Mengen Sulfate enthält, auch 
 EMI1.2 
 diese dünne Lösung noch feinst verstäubt, also in feinster Form und Verteilung, zugeführt, z. B. mit Hilfe von   Dampfzerstäubungsdüsen.   Die letztere wird zwecks möglichst 
 EMI1.3 
 angeordnet, dass gleichzeitig eine möglichst kräftige Durchwirbelung des Wassers herbeigeführt wird.

   Der Effekt ist ein umso günstigerer in je dünnerer Lösung die genanten Chemikalien verwendet, in je feinereren Stäubchen diese Lösungen zugeführt werden und in je kräftigerer Zirkulation sich das Wasser dabei befindet. 



   Selbstverständlich ist dabei, mit   Rücksicht   auf verschiedene Härte und Verunreinigung des Wassers, Regelbarkeit der Menge der zuzuführenden Chemikalien in jeder Hinsicht vorzusehen. Eine Ausführungsform einer hierzu geeigneten Einrichtung ist in der Zeichnung dargestellt. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



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  Process for softening water.



    In the Austrian patents No. 21827 and No. 39541, methods are described according to which the formation of layers of solid scale on the heating surfaces of a steam boiler is to be avoided by the feed water being introduced into the boiler by means of steam, without the addition of any. Chemicals, durchgekoèht and thereby part of the temporary hardness builders is precipitated in the form of a fine cloudiness.

   Wherever larger amounts of water are involved, these processes are naturally
 EMI1.1
 Water or just a corresponding part of it is boiled through by means of steam, flue gases removed from the boiler furnace or special furnace, but at the same time also Ca (OH) 2 and, if the water contains larger amounts of sulfates, too
 EMI1.2
 this thin solution still finely atomized, so in the finest form and distribution, supplied, z. B. with the help of steam atomization nozzles. The latter is used as possible
 EMI1.3
 arranged that at the same time the strongest possible swirling of the water is brought about.

   The effect is all the more favorable in the thinner solution the chemicals mentioned are used, in the finer dusts these solutions are added and the more vigorous the water circulation is.



   It goes without saying that the quantity of chemicals to be added can be regulated in every respect, taking into account the various hardnesses and contamination of the water. An embodiment of a device suitable for this purpose is shown in the drawing.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

Claims

The reagent solution 10 is accommodated in a container 11, from which it can be sucked off through a tube connected to the lower part of the same, or through a tube reaching down into the lower part of the same. The injector 14 is used to suck the reagent solution out of the container 11 and introduce it into the feed water to be influenced which is located in the container 13. The vapor-liquid mixture then flows through the line 17 into the container 13 in which the feed water is located.

For the finest possible distribution of this steam / reagent solution mixture in the feed water, it is on. one or more nozzles (19) with a helically wound insert 20 are connected to the end of the line 17. The mixture of steam and reagent solution is replaced in rapid rotation as it passes through the insert 20 and it flies apart in all directions when it exits.

A further atomization can be brought about that baffle plates 21 are arranged in front of the nozzle or the nozzles (20), PATENT CLAIMS: I. Process for softening water with the addition of hydrated lime soda solutions and the like. The like. And boiling the same with steam etc., characterized in that highly dilute solutions are introduced directly into the liquid through steam atomization nozzles in such a way that the incoming jet of liquid causes a powerful swirling of the water, 2.

Device for carrying out the method according to claim 1, characterized by the installation of helically wound inserts (20) in the discharge nozzle (19) EMI1.4 EMI1.5 ** WARNING ** End of CLMS field may overlap beginning of DESC **.