| 摘要 |
1,214,617. Fluid regulation. ALFA-LAVAL AB. Feb.21, 1969 [Feb.21, 1968], No.9505/69. Heading G3H. Maintaining constant and equal the flows of liquid to and from an apparatus having an intermittently working stage, is effected by the provision of an upper, liquid-receiving container 1, an intermediate, liquid-processing unit 2, which operates intermittently, and a lower liquid-discharging container 3, and further; two sensors 12 and 13 which are responsive to the levels of liquid in the two containers, and a device 16 which receives signals generated by the sensors, adds these, and emanates an appropriate signal which, via line 17, serves to adjust a valve 6 disposed in a supply line 4 leading to the uppermost container 1. In operation, unit 2 is emptied via valve 11 and line 10 prior to being re-filled via valve 9 and line 8, and the supply from the lowermost container 3 is transferred, via line 5, to a centrifugal pump 7. In a modification, all three members 1, 2 and 3 maybe provided with sensors leading to device 16. In a still further modification, Fig.2 (not shown), both of the containers, and if desired the unit also, may be held on a common rod (18) which is supported by a pivot arm (21) and rests on a base (19) positioned on a strain gauge (22), the strain gauge passing a signal to a device (24) adapted to operate the inflow-controlling valve 6. |
