公开(公告)号：US06966974B1

公开(公告)日：2005-11-22

申请号：US09937904

申请日：2000-03-31

申请人： Leif Ramm-Schmidt ,  Kari Myreen ,  Matti Laajaniemi

发明人： Leif Ramm-Schmidt ,  Kari Myreen ,  Matti Laajaniemi

IPC分类号： B01D1/00 ,  B01D1/22 ,  B01D3/00

CPC分类号： B01D1/221 ,  B01D1/0094 ,  B01D3/008

摘要： The invention relates to a method for evaporating a solution and an evaporator applied to it. The evaporator (1) has parallel plate heat exchanger elements (3) fitted inside a jacket (2), consisting of a flexible plastic film, for example, and a liquid distribution space (4) common to the elements, from where the solution to be evaporated can be spread, through supply channels (6), on the heat transmission surfaces (4) of the elements to run from the top downwards. The solution (10) that has not evaporated on the surfaces is recycled from the bottom of the evaporator back to the liquid distribution space, and from there to the heat transmission surfaces (4) of the elements for re-evaporation. In connection with evaporation, precipitate is separated from the solution as a result of over-saturation, ending up in the recirculation flow with the solution and being separated from the solution in the liquid distribution space (14) that works as a separator for the precipitate. The recirculation flow is fed into the space (14) so that the precipitate in it is separated under the effect of its weight and/or kinetic energy, while the flow of the solution is directed upwards, ending up in the supply channels (6) leading to the heat transmission surfaces (4) of the elements. The space (14) can consist of an elongated duct, the flow being fed to its end from a downward curving recirculation line, or the space can consist of a trough, which is provided with lamellas (16) or a perforated intermediate bottom, which separate the precipitate.

摘要翻译： 本发明涉及一种蒸发溶液和蒸发器的方法。 蒸发器（1）具有装配在护套（2）内部的平行板式换热器元件（3），其由例如柔性塑料膜和元件共同的液体分配空间（4）组成， 蒸发可以通过供应通道（6）传播，在元件的传热表面（4）上从顶部向下运动。 在表面上没有蒸发的溶液（10）从蒸发器的底部回流到液体分配空间，并从那里再循环到用于再蒸发的元件的传热表面（4）上。 与蒸发有关，由于过度饱和，沉淀物与溶液分离，最后在溶液的再循环流中，并与作为沉淀分离器的液体分配空间（14）中的溶液分离。 。 再循环流被输送到空间14中，使得其中的沉淀物在其重量和/或动能的作用下被分离，同时溶液的流动向上指向，最终在供给通道（6）中， 导致元件的传热表面（4）。 空间（14）可以由细长的管道组成，该流体从向下的弯曲再循环管线输送到其端部，或者该空间可由槽形成，槽设有薄片（16）或穿孔的中间底部， 分离沉淀。

公开(公告)号：US06638398B1

公开(公告)日：2003-10-28

申请号：US10049342

申请日：2002-05-21

申请人： Leif Ramm-Schmidt ,  Matti Laajaniemi ,  Peter Koistinen

发明人： Leif Ramm-Schmidt ,  Matti Laajaniemi ,  Peter Koistinen

IPC分类号： B01D334

CPC分类号： C01C1/10 ,  C01C1/28 ,  C02F1/048 ,  C02F1/66 ,  C02F2101/16 ,  C02F2103/06 ,  C02F2103/20 ,  Y10S159/15 ,  Y10S159/20

摘要： A method including evaporating aqueous solutions containing ammonia, adding an acid to the evaporated vapor flow to form an ammonium salt, and condensing the vapor flow to form a liquid containing the salt. By this method the ammonia formed into a salt is not present as an inert gas layer which would impede condensation on the condenser surfaces.

摘要翻译： 一种方法，包括蒸发含有氨的水溶液，向蒸发的蒸汽流中加入酸形成铵盐，并冷凝蒸汽流以形成含有该盐的液体。 通过该方法，形成盐的氨不会作为阻止冷凝器表面上的冷凝的惰性气体层存在。