摘要:
A valve for sterile sampling of a liquid sample from a container comprises a valve body (1) with a. valve chamber (2) . The valve is moreover provided with a sample inlet (6) in the valve chamber (2), a first valve seat (7), a first valve plug (5a) for closing the sample inlet (6) through abutment against a first valve seat (7), an outlet (8) from the valve chamber (2) , a cleaning inlet (9) in the valve chamber (2) for disinfection fluid, a second valve seat (10) and a second valve plug (5b) . The outlet (8) is positioned between the two valve seats (7, 10) , and the second valve seat (10) and the second valve plug (5b) are positioned in such a manner that the second valve plug (5b) through abutment against the second valve seat (10) cuts off the inflow of disinfection fluid in an area (2b) of the valve chamber (2) at the sample inlet (6).
摘要:
Embodiments of the invention provide a process in which a gas comprising biomethane having a heating value of less than about 925 BTU/cubic foot is introduced to a pipeline system that is connected to at least one source of natural gas having a heating value of at least about 950 BTU/cubic foot. The gas comprising biomethane combines with natural gas in the pipeline system to produce a mixed gas having a heating value below about 925 BTU/cubic foot. An amount of natural gas at least equal to the amount of gas comprising biomethane is withdrawn from the pipeline system for use as a transportation fuel, a fuel intermediate or as a feedstock for producing a fuel. The process can enable fuel credit generation and/or reductions in life cycle greenhouse gas emissions.
摘要:
A bulk adhesive transfer system (10) for transferring adhesive particulate to a melter (18, 200) includes a bulk supply (12) and a transfer device (14, 150, 250, 350), which may define a hopper (152, 252, 352) of the melter (18, 200), a mobile bin (14, 150), and/or a buffer unit (16). The transfer device (14, 150, 250, 350) is configured to receive unmelted adhesive particulate from the bulk supply (12) and then be selectively docked with the melter (18, 200) to transfer the adhesive particulate to the melter (18, 200). The bulk adhesive transfer system (10) may also include a knife gate valve device (110), which includes a plurality of ports (122a, 122b, 122c, 122d) that sequentially open and close to control flow of the adhesive particulate towards the melter (18, 200). The bulk adhesive transfer system (10) simplifies refilling operations for a melter (18, 200) while enabling continuous operation of the melter (18, 200), even when the transfer device (14, 150, 250, 350) is undocked for removal from the melter (18, 200).
摘要:
Eine Einrichtung zum dosierten Abfüllen eines Mediums, enthaltend einen eine Einlaßöffnung und eine Auslaßöffnung aufweisenden Gehäuseabschnitt sowie ein Absperrorgan (10), das zwischen einer die Einlaßöffnung mit der Auslaßöffnung verbindenden Öffnungsstellung und einer die Verbindung zwischen der Einlaßöffnung und der Auslaßöffnung unterbrechenden Schließstellung verstellbar ist, ist dadurch gekennzeichnet, daß das Absperrorgan als um eine Achse drehbares Hahnküken (10) ausgebildet ist, um eine insbesondere beim Abfüllen von hochviskosen Medien auftretende Fadenbildung zwischen dem gefüllten Behälter und der Abfülleinrichtung zu verhindern. Der in Strömungsrichtung unten liegende, vorzugsweise schneidenartig ausgebildete Öffnungsrand der Auslaßöffnung ragt in der Öffnungsstellung in den Hahnkükendurchgang (10.3), wodurch ein zusätzlicher positiver Effekt bei der Verhinderung einer Fadenbildung eintritt.
摘要:
Method and system for clearing a pipe system from its contents, the pipe having a proximal end and a distal end, the method including providing an air supply to the pipe system at the proximal end by applying an air pressure decreasing from an initial pressure as the bulk of the pipe contents get discharged gradually at the distal end for obtaining a contents flow in the pipe system. The method further includes determining a volume of air supplied to the pipe system by the air supply, determining an estimated contents travel speed from the volume of the air supplied to the pipe and regulating the air supply to the proximal end of the pipe for obtaining a predetermined pipe contents travel speed using the estimated contents travel speed.
摘要:
A system (10) for measuring the amount of bunker fuel, such as for example heavy fuel oil, transferred during a bunkering activity. The system (10) comprises a pipe (11) configured to transport bunker fuel, an air/gas separator (14) connected to the pipe (11) at a first position, a Coriolis flow meter (20) configured to measure a flowrate of the bunker fuel, the pipe (11) comprising a downwardly extending portion (15) arranged downstream of the first position and upstream of the Coriolis flow meter (20), an electronically controlled backpressure valve (22) in the pipe (11) at a position downstream of the Coriolis flow meter (20), the backpressure valve (22) with an adjustable restriction effect (22) on any fluid flowing through the backpressure valve (22), a pressure sensor (16) at a second position downstream of the first position and of upstream of the backpressure valve (22), and an electronic control unit (50) in electrical communication with the Coriolis flow meter (20), with the pressure sensor (16) and with the electronically controlled backpressure valve (22). The electronic control unit (50) is configured to control the backpressure valve (22) using the signal from the pressure sensor (16) in order to maintain the pressure sensed by the pressure sensor (16) close to a predetermined pressure value.
摘要:
A sampling devide (1) comprises a sampling container (4) for reception of a sample volume and a connecting piece (7) adapted to be connected to a fitting (2) mounted on a processing installation. The connecting piece (7) has a sample passage which is provided with a stationary valve part (12) and a corresponding valve member (14) which is displaceable between a closed and an open position. The stationary valve part (12) and the displaceable valve member (14) are integrated int the sampling container (4). The valve member (14) is spring-loaded towards its closed position and adapted to be automatically displaced to its open position upon connection of the connecting piece (7) with the fitting (2).