| 摘要 |
<p>697,015. Mixing fluids in flow. STANDFAST DYERS & PRINTERS. Ltd. July 25, 1951 [Aug. 15, 1950]. No. 20206/50. Class 86 [Also in Group XXIX] A method of continuously supplying and maintaining uniform the composition of a mixture of component liquids consists in continuously circulating each liquid in an independent circuit at a constant rate of flow and intermittently but synchronously diverting the flow to a common location. As shown, liquid, e.g. dye, is pumped at a constant rate by pump 21, Fig. 1, from the supply tank 10 to a constant-head tank 16 from which it is supplied to the circuit 12, 22, 13 back to the tank, excess flow being by-passed back to the tank via pipe 14. In the circuit is a nozzle 19 which diverts liquid into a vessel 23 where it is mixed with liquid from other circuits. The nozzles in selected circuits are connected to a spring-loaded piston 46, Fig. 2, which is operated by compressed air supplied at 40 and controlled by a weight-loaded rotary slide valve 35 actuated by a float 25 responsive to the level in the mixing vessel. The float is' connected to a counter-balanced lever 26 which tilts, through a spring 33, a plate 29 for actuating the valve. The strength of a component liquid in the mixture is adjusted by valves 17, 22b or by changing the nozzle, the rate of flow through pipe 12 being indicated by a gauge 18. The nozzles may also be moved manually either directly or through a manually actuated valve by-passing valve 35.</p> |
