System and method for continuously producing a liquid mixture

A system (30) for continuously producing a liquid product (P) comprising at least two liquid components (k1, k2) that are capable of being pumped, with a first and a second storage tank (1a, 1b) for each component (k1, k2) and a first and a second mass-flow control circuit (2a, 2b) attributed to the first and the second storage tank (1a, 1b), respectively, for establishing a target mass flow of the component (k1, k2), wherein a first and a second supply device (3a, 3b) pumps the component (k1, k2) out of the respective storage tank (1a, 1b) into the respective mass-flow control circuit (2a, 2b), and a first and a second flow meter (4a, 4b), respectively, for measuring a current mass-flow of the component (k1, k2) and a first and a second regulating valve (5a, 5b), respectively, for adjusting the current mass-flow are installed downstream following each other in a supply direction (F) of the component (k1, k2), wherein a switch arrangement (14a, 14b) is provided for each mass-flow control circuit (2a, 2b), which on the one hand returns the component (k1, k2) to the corresponding storage tank (1a, 1b) in case of a deviation of the current mass-flow from the respective target mass-flow and on the other hand feeds the component (k1, k2) into a first line (9a) at a first end (24a) in case of a match of the current mass-flow with the respective target mass-flow, which first line (9a) is connected with a second line (9b) for feeding carbon dioxide and is connected at a second end (24b) with a filling tank (1c), wherein the first line (9a) feeds the liquid product (P) containing carbon dioxide into the filling tank (1c), from which filling tank (1c) non-continuous amounts of the liquid product (P) are withdrawn via a filling line (22), wherein the storage tanks (1a, 1b) and the filling tank (1c) are designed as pressure vessels and are interconnected by means of at least one pressure equalization line (1) for establishing a pressure equalization between the storage tanks (1a, 1b) and the filling tank (1c) and form together with the pressure equalization line (1) a pressure equalization system.