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Machine translation
1. (WO1981001839) DEVICE FOR PREVENTING DEPOSIT OF SEDIMENTS IN UPTAKE TUBES OF AN EVAPORATOR
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1981/001839    International Application No.:    PCT/DE1980/000190
Publication Date: 09.07.1981 International Filing Date: 18.12.1980
IPC:
C02F 1/04 (2006.01), F28G 1/06 (2006.01)
Applicants:
Inventors:
Priority Data:
2952169 22.12.1979 DE
Title (EN) DEVICE FOR PREVENTING DEPOSIT OF SEDIMENTS IN UPTAKE TUBES OF AN EVAPORATOR
(FR) DISPOSITIF POUR EMPECHER LE DEPOT DE SEDIMENTS DANS LES TUBES MONTANTS D"UN EVAPORATEUR
Abstract: front page image
(EN)During evaporation for the production of soft water from raw salt water or briny water, by using uptake tubes heated from outside, the inner walls of the tubes are covered with a substantial amount of sediments. The elimination of such a layer of sediments takes place generally by stopping the evaporator and by mechanically cleaning the different tubes. It is also known to scrape the deposits during operation of the evaporator, which leads to the destruction of the tubes. Further, the cross section area for the passage of fluid is substantially narrowed. According to the invention, it is proposed to actuate, in all the tubes (4) during operation of the evaporator, spiral springs (22) which extend along the tubes; these springs have a negligible influence on the tube walls and eliminate the sediments by means of the turbulence generated.
(FR)Lors de l"evaporation pour la production d"eau douce a partir d"eau brute salee ou d"eau saumatre, en utilisant des tubes montants chauffes de l"exterieur, on remarque que les parois interieures des tubes se recouvrent d"une grande quantite de sediments. L"elimination de cette couche de sediments a lieu la plupart du temps par arret de l"evaporateur et par un nettoyage mecanique des differents tubes. Il est aussi connu de racler les sediments pendant la marche de l"evaporateur, ce qui conduit a la destruction des tubes. En outre, la section de passage du fluide est considerablement retrecie. Conformement a l"invention, on propose d"agiter, dans tous les tubes (4) pendant la marche de l"evaporateur, des ressorts a boudin (22) qui s"etendent le long des tubes; ces ressorts ont une influence negligeable sur les parois des tubes et eliminent les sediments au moyen de la turbulence creee.
Designated States:
Publication Language: German (DE)
Filing Language: German (DE)