摘要:
Brennstoffzellenanordnung für eine H2/02-Brennstoffzelle Die Erfindung betrifft eine Brennstoffzellenanordnung (10) mit einer mit einem H2-Zufluss (48) verbundenen Anode (26) und einer mit einem 02-Zufluss (50) verbundenen Kathode (30), wobei zwischen H2- Zufluss (48) und 02-Zufluss (50) eine Differenzdruckregeleinrichtung (52) zum Regeln eines Differenzdruckes zwischen dem H2- Zufluss (48) und dem 02-Zufluss (50) angeordnet ist, wobei die Differenzdruckregeleinrichtung (52) eine Fluidverbindung (54) zwischen H2-Zufluss (48) und 02-Zufluss (50) aufweist, in der eine auslenkbare Membran (56) angeordnet ist, mit der ein Pin (64) gekoppelt ist, der bei einer Auslenkung der Membran (56) infolge 02- Überdruck ein in dem H2-Zufluss (48) angeordnetes Ventil (58) öffnet.
摘要:
This invention relates to a method and system for increasing the utilization of the supply of acetylene from two acetylene sources. The flow is provided at a substantially constant delivery pressure to a point of use, such as a customer point of use. A portable apparatus is configured to operably connect to each of the two acetylene sources simultaneously and during operation automatically provide flow from one of the acetylene sources through various valving and piping assembled onto the portable apparatus followed by supply to a customer point of use.
摘要:
A spray drier system is provided for spray drying a liquid sample such as blood plasma. The spray drier system may include a spray drier device and a spray drier assembly. The spray drier device may be configured to receive flows of an aerosolizing gas, a drying gas, and blood plasma from respective sources and couple with the spray drier assembly for transmission of the received aerosolizing gas, drying gas, and plasma to the spray drier assembly. Spray drying of the plasma is performed in the spray drier assembly under the control of the spray drier device.
摘要:
A pressure reducing apparatus (10) includes a body (12) being equipped with a first side port (20) through which a pressure fluid is supplied and a second side port (22) through which the pressure fluid having been reduced in pressure is discharged. Further, a feedback passage (64) is formed, which establishes communication between the second side port (22) and a third diaphragm chamber (90) that faces toward a pilot valve (93). Additionally, a pressure fluid that flows through the second side port (22) is introduced through the feedback passage (64) into the third diaphragm chamber (90), whereby a third diaphragm (78) is pressed upwardly against an elastic force of a second spring (82) into equilibrium.
摘要:
A trim assembly is provided with a cage with an internal surface and a cage port. A plug having an external surface is disposed in the cage and is operable between a closed position, a pressure balancing position and an open position. The trim assembly also includes a low friction flow restrictor disposed between the cage and the plug and a pressure energized seal disposed between the cage and the plug. A seal balancing volume defined by the internal surface of the cage, the external surface of the plug, the low friction flow restrictor and the pressure energized seal is provided. The seal balancing volume is in fluid communication with the cage port through the low friction flow restrictor and is maintained at a seal balancing volume pressure. The trim assembly further includes a pressure control assembly configured to vent the seal balancing volume.
摘要:
A spray drier monitoring and control system is provided for a spray drier device adapted to spray dry a liquid sample such as blood plasma. The system may receive information regarding an operator of the device, the liquid sample, a spray drier assembly used by the device for spray drying, and spray drying process parameters. The spray drier system may also conduct a plurality of checks to ensure that traceability and conformance with attendant quality/safety standards are maintained throughout the spray drying process. The information may be output by the system to a remote computing device (e.g., a blood center computing system) that tracks the sample history. Beneficially, the spray drier system allows information regarding spray drying to be easily integrated with the sample information for enhanced tracking and quality control of the sample.
摘要:
A pressure reducing apparatus (10) includes a body (12) being equipped with a first side port (20) through which a pressure fluid is supplied and a second side port (22) through which the pressure fluid having been reduced in pressure is discharged. Further, a feedback passage (64) is formed, which establishes communication between the second side port (22) and a third diaphragm chamber (90) that faces toward a pilot valve (93). Additionally, a pressure fluid that flows through the second side port (22) is introduced through the feedback passage (64) into the third diaphragm chamber (90), whereby a third diaphragm (78) is pressed upwardly against an elastic force of a second spring (82) into equilibrium.
摘要:
The invention discloses a method of controlling a transmembrane pressure (TMP) in a crossflow filtration apparatus, comprising the steps of: a) providing a crossflow filtration apparatus comprising a pump (21) fluidically connected via a retentate compartment (33) of a crossflow filter (32) and a length of flexible tubing to a regulator valve (1; 101) acting on the flexible tubing, wherein the regulator valve is a high precision pinch valve. The apparatus further comprises a first pressure transducer (22) adapted to measure a pressure between the retentate compartment and the regulator valve, a second pressure transducer (39) adapted to measure a pressure between the pump and the retentate compartment and a third pressure transducer (40) adapted to measure a pressure at a permeate outlet (36) of the crossflow filter, and a control unit (23) electrically or electromagnetically connected to said regulator valve, the first, second and third pressure transducers and optionally to the pump; b) pumping a liquid with the pump via the second pressure transducer, through the retentate compartment via the length of flexible tubing, the first pressure transducer and the regulator valve; c) controlling the regulator valve with the control unit, such that a TMP calculated by formula (I) TMP = (P inlet + P outlet )/2 - P perm corresponds to a predetermined TMP value or to an interval between two predetermined TMP values, wherein P inlet is a pressure reading from the second pressure transducer, P outlet is a pressure reading from the first pressure transducer and P perm is a pressure reading from the third pressure transducer.