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Machine translation
1. (WO1981001720) METHOD AND DEVICE FOR REMOVING FLOATING LIQUID IMPURITIES,PARTICULARLY OIL,FROM A FLOWING WATER SURFACE
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1981/001720    International Application No.:    PCT/HU1980/000007
Publication Date: 25.06.1981 International Filing Date: 08.12.1980
IPC:
E02B 15/04 (2006.01)
Applicants:
Inventors:
Priority Data:
AI291 12.12.1979 HU
Title (EN) METHOD AND DEVICE FOR REMOVING FLOATING LIQUID IMPURITIES,PARTICULARLY OIL,FROM A FLOWING WATER SURFACE
(FR) PROCEDE ET DISPOSITIF POUR ENLEVER DES IMPURETES LIQUIDES FLOTTANTES, EN PARTICULIER DE L"HUILE, D"UNE SURFACE D"EAU EN ECOULEMENT
Abstract: front page image
(EN)Separation of impure surface water layer, separation of mixture of impurities and water and method for implementation of discharging impurities separated, according to which local water level lowering required for flowing impure surface water layer through overflow spillway is performed in conformity with the Bernouilli formula by suction effect produced and maintained by increasing flow rate, while separation taking place in the same step is carried out by the transient decrease of flow rate, then by change of direction. By turbulent-free inflow without decrease of rate really excellent scraping efficiency can be achieved. The device for carrying out said method comprises a submersion body of submersion depth first increasing downstream then decreasing, provided with opening serving as hopper to produce suction effect, on bottom in range of greatest submersion cross-section or behind latter, with adjustable spillway on front end on side of inflow, whereas with baffle plate controlling direction of flow and defining cross-section in inner space of submersion body, and with a flow-free zone for collecting the impurities separated.
(FR)Separation d"une couche impure a la surface d"une nappe d"eau, separation du melange d"impuretes et eau et procede de mise en oeuvre de la decharge des impuretes separees, selon lequel l"abaissement du niveau de l"eau locale pour effectuer l"ecoulement de la nappe d"eau superficielle impure au travers d"un passage de deversement s"effectue d"apres la formule de Bernouilli par un effet d"aspiration produit et maintenu en augmentant le debit d"ecoulement, tandis que la separation ayant lieu dans la meme etape s"effectue par diminution temporaire du debit d"ecoulement, puis par changement de direction. Par un ecoulement d"arrivee sans turbulence, sans diminution du debit, on obtient un rendement de raclage excellent. Le dispositif de mise en application de ce procede comprend un corps d"immersion d"une profondeur d"immersion augmentant d"abord en aval puis diminuant, et pourvu d"une ouverture jouant le role d"une hotte pour produire un effet d"aspiration sur le fond de la section d"immersion la plus grande ou derriere celle-ci, avec un passage de deversement reglable sur l"extremite avant du cote de l"entree de l"ecoulement, un deflecteur commandant le sens d"ecoulement et definissant la section dans l"espace interieur du corps d"immersion, une zone d"ecoulement libre permettant de recuperer les impuretes separees.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)