| 摘要 |
<p>A proportioning process and apparatus is provided for forming a liquid composition by admixture of a plurality of liquid components. The apparatus includes a main chamber (10), a subchamber (12) positioned within the main chamber and means (18,20,22) for introducing the liquid components sequentially into the subchamber which then overflow into the main chamber. The main chamber and subchamber are provided with outlets so that the liquid therein can be admixed to form the liquid composition. Pressure sensing means (28) in the subchamber is provided to measure the head pressure of each component in the subchamber and the main chamber which, because the dimensions of the subchamber and main chamber are known, can be used to measure the volumes of the liquid components to be admixed. A level sensor (46) is provided at the top of the main chamber to be used as a calibration point and for overflow detection. <IMAGE></p> |
