摘要:
Filters for the supply of inert gas to packing machines are sterilized by passing steam and sterile air through the filters via a number of ducts, valves and governors. A simpler method for achieving the sterilization is obtained by sterilizing the filter (11) jointing with the packing machine which may be done by connecting one side of the filter in series to the circulation system of the machine for sterilization by means of chemical sterilizing agent. In this way the abovementioned arrangement is simplified considerably in that a large number of valves and ducts becomes superfluous.
摘要:
Valves used in lines for liquids containing particles may on occasion be prevented by particles adhering between the head and the seat of the valve from assuming a fully closed position. This is prevented by making the valve head (4) capable of turning or rotating in respect of the seat (8), as a result of which obstructing particles can, by turning of the valve head, be cut off, crushed or by other means rendered harmless so that the valve can be fully closed.
摘要:
In packing machines of the type which manufacture packing containers with liquid contents a filling pipe with a valve arrangement situated at the outlet end is frequently used. The valve arrangement in accordance with the present invention comprises a movable valve element which is manoeuvred with the help of pressure variations in the filling pipe. The movable valve element is cup-shaped and is adapted so that it is lifted through excess pressure in the filling pipe from a fixed disc-shaped seat so that an annular discharge opening results.
摘要:
Procedure to measure the level (14) of a liquid (13) by means of elastic waves, such liquid (13) being contained within an axially moving tube (11) and cooperating with a filler tube (12), the filler tube (12) being used as an element in the transmission of elastic waves to the liquid (13), such elastic waves being picked up (16) outside the axially moving tube (11). Device (10) to carry out the above procedure, which device (10) cooperates with a filler tube (12) and comprises:
- at least one transducer (15) to transmit energisation of the vibration of the filler tube (12), and - at least one receiver transducer (16) located outside the axially moving tube (11).