| 摘要 |
<p>A fluid system including a fluid supply (2), at least one outlet and associated outlet control device, said outlet control device (3) operable between open and closed positions to respectively permit and block passage of fluid from said outlet; a supply conduit (4) connecting the fluid supply to said outlet; a return conduit (6) connected to said fluid supply (2); a return valve (7) located proximate and connected to said outlet, said return valve (7) being connected to the supply (2) and return conduits (6), the return valve (7) configured to be capable of moving between a dispensing configuration, permitting fluid passage from the supply conduit (4) to the outlet and blocking fluid passage to the return conduit (6); and a recirculation configuration, permitting fluid passage from the supply conduit (4) to the return conduit and blocking fluid passage to the outlet; a controller (13) capable of controlling said return valve (7) to control the direction of fluid, said controller (13) coupled to a sensor (14) in the supply conduit (4) or return valve (7), said sensor capable of detecting a parameter of interest in the fluid within said supply conduit or return valve (7); and a flow switch (15) coupled to the supply conduit (6) and/or return valve (7); and wherein said flow switch is configured to close an electrical circuit when the fluid flow within said supply conduit (4) reaches a predetermined flow-rate, the closed circuit providing electrical power to said controller (13), and wherein said controller (13) is suitably programmed such that upon said sensor (14) relaying that said parameter of interest meets a predetermined parameter value (7), the controller (13) operates the return valve (7) to move to either the recirculation or dispensing configuration.</p> |
