AT49286B - Evaporator. - Google Patents

Description

  

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 to allow steam to form. During the upward movement in the pipe group c, the liquid pressure is lower and the vapor formation is accelerated by the preheating of the liquid already carried out in the pipe group d '.



   The arrangement described above ensures that the ascending or descending liquid flows evenly through all the heating pipes, and this results in an increased efficiency of the entire heating surface. As a result of the forced circulation, the speed of the liquid in all heating pipes is also increased and the heat transfer is thereby significantly promoted
At the upper mouths of the heating pipes, a small extension g of the partition wall b is attached in the liquid space of the upper part e, which means that any
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 But since foam bubbles cannot enter the heating pipes, which are located in the hotter steam zone,

   This also reduces the heat-insulating incrustation of the heating stirrer, since residues will not burn on so easily at the lower temperature of the pipe. In the case of liquids that precipitate salt, the salt crystals formed are guided by the liquid through the pipe group d into the lower part f, where a slight precipitation can take place.
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 Controlled circulation of the liquid to be evaporated is achieved through all heating pipes, whereby the output of the heating pipes is increased, while foam formation and incrustations are reduced.



   PATENT CLAIMS:
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 Heating and thus an upward movement of the liquid is achieved, while in the less heated pipes belonging to the inner group, the liquid to be concentrated flows downwards with further absorption of heat.
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