Abstract:
Die Erfindung betrifft ein Verfahren zum Einstellen einer Wasserstoffaustrittstemperatur an einer Befüllstation, welche unter anderem einen Flüssigkeitsspeicher (1 ), eine Kryopumpe (2), einen Wärmetauscher (6), einen Gasspeicher (11 ) und eine Mischstelle (7) umfasst, wobei ein kalter Wasserstoffstrom und ein warmer Wasserstoffstrom so gemischt werden, damit die Temperatur an der Mischstelle (7) zwischen -30 und -45 °C liegt.
Abstract:
Die Erfindung betrifft eine Versorgungseinrichtung und ein Verfahren zum Aufbau und Betrieb einer Versorgungseinrichtung einer Tankstelle für flüssigen Wasserstoff, umfassend mindestens einen Speichertank (1) für flüssigen Wasserstoff und mindestens eine Pumpe (2) für flüssigen Wasserstoff, wobei der Speichertank (1) und die Pumpe (2) unmittelbar miteinander verbunden sind.
Abstract:
The discharging system (S) according to the present invention comprises a fixed body (1); a movable body (2) which is movably connected to the fixed body (1) by means of movement pin (9), and which comprises a lower part (6) where the said cylinder (T) is placed and an upper part (7) which is located on the lower part (6) in such a way that there exist a space therebetween; a discharging arm (3) which moves in such a way that it gets close to the cylinder (T) to be placed on the lower part (6) from the said upper part (7) towards the lower part (6) and moves away from the cylinder (T), which has an arm connection (10) that settles on the valve (T1) of the cylinder (T) as it gets close to the cylinder (T) and which constrains the cylinder between itself and the lower part (6); and which discharges the combustible gas in the cylinder; a transfer line for transferring the combustible gas received by the discharging arm (3) to a storage unit; and a movement element (5) which ensures that the cylinder (T) placed on the movable body (2) takes an upside-down position by moving the movable body (2) relative to the fixed body (1).
Abstract:
In order to provide improved efficiency, e.g. in terms of how to operate and maintain a liquid natural gas (LNG) transfer system, while also improving the environmental friendliness of the transfer operation, there is disclosed a method and system of transferring liquid natural gas from a first container 104 to a second container 106 via a pump station 108. The first container 104 is positioned close to the pump station 108 by a truck 110, and the second container 106 is positioned close to the pump station 108 by a ship 112. Repeated transfer of LNG is provided using first and second dry couplings 304, 308 and, after transfer is complete, disconnecting the second dry coupling 308 from the second container and providing a flow of liquid natural gas back into the first container utilising an overpressure in the insulated pipes or hoses 202, 208 and in pipes of the pump station relatively to the pressure in the first container and by replacing the first container 104 with a filled first container when the first container is empty.
Abstract:
The present invention provides non-venting transfer systems and methods related to transferring cryogenic liquid between two vessels without venting evaporated cryogenic liquid into the atmosphere. The stations, systems, and methods utilize a feed line and a return line connecting a source tank and a pump system to allow for flow of a cryogenic liquid to the pump and return of evaporated cryogenic liquid to the source tank, thereby avoiding release of the evaporated cryogenic liquid into the atmosphere.
Abstract:
A cryogenic liquid conditioning system with flow driven by head pressure of liquid contained in a cryogenic storage tank, and a cryogenic liquid delivery system with flow driven by pressure in the vapor space of said cryogenic storage tank. A heat exchanger, coupled to the cryogenic storage tank located below the liquid level of said tank, operates as a portion of both the conditioning system and delivery system. A piping system moves cryogenic liquid to the heat exchanger where it is vaporized, and then moves vaporized liquid to the vapor space of the cryogenic tank and an application. The piping system includes a means for controlling flow through the system. A means for measuring the saturated pressure of cryogenic liquid is coupled to the storage tank or piping system, and is in communication with the means for controlling flow.
Abstract:
An improved system, apparatus and method for injecting a chemical from a storage tank into a natural gas or liquefied petroleum gas pipeline at a flow-controlled injection rate is provided. The system, apparatus and method including a pair of positive-displacement pumps driven in substantially complementary fashion by a single driver, a controller controlling the driver, and each pump being fed from the storage tank and discharging chemical into the pipeline. The system, apparatus and method may also include a second pair of positive-displacement pumps having substantially similar displacement and operatively connected to the first pair of positive-displacement pumps, the first pair of positive-displacement pumps being driven in a substantially complementary fashion with the second pair of pumps by a single driver or a pair of drivers.
Abstract:
A low-loss cryogenic fluid supply system having at least one main cryogenic fluid tank and a backup cryogenic fluid tank each having a vent set to a first pressure P1 and a pressure build circuit set to a second pressure P2, a main tank gas supply line configured to supply gas to a junction at a third pressure P3, a main tank liquid supply line configured to supply gas to the junction at a fourth pressure P4, a backup tank liquid supply line configured to supply gas to the junction at a fifth pressure P5, a backup tank backpressure regulator configured to supply gas to a point upstream to the main tank gas supply line at a sixth pressure P6, and an outlet supply line configured to supply gas from the junction at an end use pressure Pu, where P1 > P3≥ P2, P1≥ P6 > P2, P6≥ P3 > P4 > P5 > Pu.