Process for the recovery of steam emitted in a liquid...

B - Operations – Transporting – 67 – D

Patent

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B67D 7/54 (2010.01) B67D 7/04 (2010.01)

Patent

CA 2227874

A method of recovering vapor emitted in a liquid dispensing installation comprising: liquid dispensing means (P L) adapted to cause said liquid to flow with a liquid flowrate Q L; vapor recovery means (P v) adapted to cause said vapor to flow with a vapor flowrate Q v along a pipe (120), said vapor flowrate Q v being controlled by a parameter G. According to the invention, the method includes the following steps: establishing an equation G = F (Q v, {p i}) relating the parameter G to the vapor flowrate Q v and to parameters p i characteristic of the recovery means and said pipe (120); determining an initial value {p i}o of the parameters p i; on each dispensing k of liquid: measuring the liquid flowrate Q L,k and determining a value G k of the parameter G from the equation: G k = F (Q Lk, {p i}k-1); determining a new value {p i}k of the parameters p i to be used for the next dispensing k + 1 of liquid. Application to dispensing fuel for motor vehicles.

Procédé de récupération de vapeur émise dans une installation de distribution de liquide comprenant: des moyens (PL) de distribution de liquide aptes à faire circuler ledit liquide avec un débit-liquide QL; des moyens (PV) de récupération de vapeur aptes à faire circuler ladite vapeur avec un débit-vapeur QV le long d'une canalisation (120), ledit débit-vapeur QV étant commandé par une grandeur G. Selon l'invention, le procédé comporte les étapes consistant à: établir une relation G = F (QV, {pi}) reliant la grandeur G au débit-vapeur QV et à des paramètres pi caractéristiques des moyens de récupération et de ladite canalisation (120); déterminer une valeur initiale {pi}o des paramètres pi; à chaque distribution k de liquide: mesurer le débit-liquide QLk et déterminer une valeur Gk de la grandeur G par la relation: Gk = F(QLk, {pi}k-1); déterminer une nouvelle valeur {pi}k des paramètres pi à utiliser pour la distribution suivante k + 1 de liquide. Application à la distribution de carburant pour véhicules automobiles.

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