Apparatus for the aseptic sampling of liquids from a pipe, in particular in the beverage, pharmaceutical and cosmetics industry

摘要

In an apparatus for the aseptic sampling of liquids, in particular in the beverage, pharmaceutical and cosmetics industry for the microbiological analysis of the samples for contaminants, the samples are withdrawn from a sample withdrawal pipe (15') which can be shut off and passed to a filter (18) which has a selectively permeable flat filter section (19) having a pore size which retains the contaminants. This section (19) can be removed from the filter (18) and serves as a sample carrier for the microbiological analysis. By means of a hydropneumatic regulating and control apparatus (21, V1, V2, V3, V4, V5, V6, V7, Z) connected on the filtrate side (18') of the filter (18) incorporated in the sample withdrawal pipe (15'), multiple sampling controlled by time and volume is possible. This regulating and control apparatus has an inlet valve (V1) connected downstream to the filtrate outlet (20) of the filter (18) for a measurement vessel (21) following downstream for receiving a fixed sample volume, an outlet valve (V2) shutting off or releasing downstream the outlet (22) of the measurement vessel (21) and a sensor valve (V3) sensing the filling level of the measurement vessel (21) which can be vented. The movable valve parts, through which the filtrate does not flow, of the abovementioned valves (V1, V2, V3) are spring-tensioned and/or tensioned by compressed air and by means of a time control valve (V5) (timer), a counter (Z) and a control valve (V6) are connected to a ... Original abstract incomplete. IMAGE