| 摘要 |
An automatic or semiautomatic device for the controlled metering and mixing of a plurality of active liquid substances for plants, includes elements for selectively sampling the substances in corresponding containers and moreover includes a fluid transfer element and, elements for metering, mixing, and diluting the sampled or transferred amounts of the liquid substance(s). The device also includes a controlling and managing unit that controls the sampling and transferring element and is associated with measurement elements and an element for controlling the flow of fluids within the valve-type device. The measurement elements include an element, advantageous for sequential use, for measuring a basic volume of a sampled concentrated liquid substance, the volume needing to be mixed and/or diluted. The measurement elements moreover include an element for continuously measuring the final volume of the metered solution obtained by diluting, after metering, the concentrated liquid substance or the mixture of concentrated liquid substances. |
| 主权项 |
1. An automatic or semi-automatic device for controlled metering and mixing of concentrated substances, said device comprising;
a sampling means operatively connected to each of plural tanks (2) that respectively contain one of the concentrated substances, each of the concentrated substances being a plant nutritional substance or a plant fertilizing substance, the sampling means for selective, individual sampling of the concentrated substances in the respective tanks, transfer means for fluid transfer, said transfer means comprising at least one fluid circulation line (3) operatively connected to each of the plural tanks and to at least one active element for movement of liquid (4) as sampled concentrated liquid, valve means (12, 14, 15′, 19) for controlling circulation of fluids in the device, a dilution means that provides a dilution liquid, a measuring container (18) that receives the dilution liquid and the sampled concentrated substance(s), measuring means comprising i) an elementary measuring means (7) comprised of a container (9) connected to receive the sampled concentrated liquid via the transfer means, the elementary measuring means (7) sequentially dosing successively basic volumes of the received sampled concentrated liquid within the container (9), the container (9) emptying into the measuring container (18) for at least one of subsequent mixing and subsequent dilution by receiving the dilution liquid from the dilution means, to thereby obtain an amount of final solution, and ii) at least one determining means (8) for determining the amount of the final solution in the measuring container (18), and a control and management unit (5) for controlling the sampling means, the transfer means, the elementary measuring means (7), the determining means (8), and the valve means. |
