System for continuously circulating a liquid in order to sample or to check the liquid.

摘要

1. Apparatus for continuous circulation of a liquid between a storage vessel (2) and a receiver or a holding tank (10) in which sampling or checking is conducted, employing a source of compressed gas (5), said apparatus being characterised in that it comprises : a supply conduit (4) connecting the vessel (2) to the lower part of a separator (6) located above it, a communication conduit (3) between said source of compressed gas (5) and said supply conduit (4), a pipe (8) connecting the lower part of said separator (6) to the lower part of the holding tank (10), the lower part of the latter having a level above that of the separator (6), a return conduit (11) connecting the upper part of the holding tank (10) to the vessel (2), and a conduit (14) equipped with a bubble-separator (16) connecting the upper part of the separator (6) to a pressure-reduction apparatus (17, 18).