| 摘要 |
A safety system for the deposition and feeding of liquid chemicals, is characterized in that the chemicals are deposited in at least one container in a safety cabinet (23, 23a), that there is at least one dosage feeding pump (4, 4a) in the safety cabinet and at least one suction conduit (3, 3a) through which said chemicals can be conveyed up from the said at least one container for said dosage feeding, that a surrounding embankment (29, 29a) is provided in the bottom portion of the safety cabinet, said embankment consisting of a material which is resistant to the chemicals contained in the container or containers in the safety cabinet and which embankment can accommodate the content of container or containers placed in the cabinet, that one or more first sensors (21, 21a) sensitive to liquid are provided inside the embankment, and that the safety system includes a control unit (12, 12x) in connection with said sensor or sensors provided to stop the dosage feeding pump if liquid would contact the said first sensor or sensors. |
