Abstract:
The invention relates to a vaporisation device (4) for the cooling of a liquefied gas, said vaporisation device (1) comprising: a vaporisation chamber (14) disposed inside the inner space of a container (2, 19) that is intended to be filled with liquefied gas (3), the vaporisation chamber (14) comprising heat exchange walls (6) allowing the exchange of heat between an inner space inside the vaporisation chamber (14) and a liquefied gas (3) present in the inner space of the container (2, 19); an inlet circuit (5) comprising an intake that opens into the inner space of the container (2, 19) in order to remove a flow of liquefied gas in liquid phase from the container (2, 19) and a head loss member (13) that opens into the inner space of the vaporisation chamber (14) in order to expand the removed gas flow; and an outlet circuit (7) arranged to discharge the removed gas flow in gaseous phase from the vaporisation chamber (14) into a vapour-phase gas usage circuit (8), said outlet circuit (7) comprising a vacuum pump (9) that draws the gas flow into the vaporisation chamber (14), drives same towards the vapour-phase gas usage circuit (8) and maintains an absolute pressure below atmospheric pressure inside the vaporisation chamber (14).
Abstract:
A vessel emptying system for emptying CNGs from a vessel used to transport CNG, the vessel being one of a plurality of cylindrical containers that are arranged vertically, with substantially parallel axes, wherein said system is arranged to expand the CNG through a turboexpander-compressor device (40, 50), the turboexpander-compressor device (40, 50) being adapted to use kinetic energy from the resulting rotation or movement of that turboexpander-compressor device (40, 50) in a secondary gas processing step of the system. publication
Abstract:
A highly reliable and safe, modular automatic refill (bulk delivery) system for ultra-high purity pyrophoric metalorganic chemicals employing: a manifold that insures contamination-free operation; a liquid-level detection system (31) with fail-safe redundancy; and an evacuation system (V51) which leaves the system's manifold and transfer lines relatively free of chemical fire hazards; leaves them free of oxygen contamination; and leaves the composition of the system's carrier gas unaffected, between refills.
Abstract:
A highly reliable and safe, modular automatic refill (bulk delivery) system for ultra-high purity pyrophoric metalorganic chemicals employing: a manifold that insures contamination-free operation; a liquid-level detection system (54, 56) with fail-safe redundancy; and an evacuation system (78) which leaves the system's manifold and transfer lines relatively free of chemical fire hazards; leaves them free of oxygen contamination; and leaves the composition of the system's carrier gas unaffected, between refills.
Abstract:
Gas flow control apparatus for controlling the flow of a process gas through a conduit system to a process site, for halting the flow of gas when the process is completed, and for then developing a partial vacuum in the conduit system sufficiently high to reduce the concentration of process gas and maintain it in a gaseous state. The partial vacuum is developed by carrier gas flowing through a venturi in communication with the conduit system supplying the process gas. The carrier gas also expels any remnants of the process gas from all points between the venturi and the process site. Further, the system can be used for vaporizing gases from liquids for use in an atmospheric process at the process site, the carrier gas flowing through the venturi and vaporizing a liquid in a chamber upstream of the venturi. The vaporized gases can then be regulated by a mass flow controller.
Abstract:
L'invention concerne un dispositif de vaporisation (4) pour le refroidissement d'un gaz liquéfié; ledit dispositif de vaporisation (1 ) comportant : - une enceinte de vaporisation (14) agencée dans l'espace intérieur d'un récipient (2, 19) destiné à être rempli de gaz liquéfié (3), l'enceinte de vaporisation (14) comportant des parois d'échange de chaleur (6) permettant un échange de chaleur entre un espace intérieur de l'enceinte de vaporisation (14) et un gaz liquéfié (3) présent dans l'espace intérieur du récipient (2, 19); - un circuit d'entrée (5) comportant une admission débouchant dans l'espace intérieur du récipient (2, 19) pour prélever un flux de gaz liquéfié en phase liquide dans le récipient (2, 19) et un organe de perte de charge (13) débouchant dans l'espace intérieur de l'enceinte de vaporisation (14) afin de détendre le flux de gaz prélevé; - un circuit de sortie (7) agencé pour évacuer le flux de gaz prélevé, en phase gazeuse depuis l'enceinte de vaporisation (14) vers un circuit d'utilisation de gaz en phase vapeur (8); ledit circuit de sortie (7) comportant une pompe à dépression (9) apte à aspirer le flux de gaz dans l'enceinte de vaporisation (14), à le refouler vers le circuit d'utilisation de gaz en phase vapeur (8) et à maintenir dans l'enceinte de vaporisation (14) une pression absolue inférieure à la pression atmosphérique.
Abstract:
A system for offloading a compressed fluid from a series of pressure vessels, the system comprising a multilevel piping system and at least one ejector device, the ejector device being for recovering energy from a high pressure fluid stream from a substantially full pressure vessel, and for forced suction of residual fluid from a part offloaded pressure vessel, the multilevel piping system comprising, in use, at least three different pressure levels, including a high pressure line, a medium pressure line and a low pressure line, the high pressure line being intended to supply the said ejector device with the high pressure fluid stream, the medium pressure line being intended for both the forced suction of the residual fluid and mixing with the high pressure line, and the low pressure line being intended for each of mechanical suction of the residual gas not drawn off by the ejector, recompression thereof by means of at least one compression turbomachine, and assisting energy recovery by transferring heat via gas/gas exchangers.
Abstract:
A gas supply system for dual-fuel or gas engines, comprising at least one liquid natural gas (LNG) cargo tank (1), a first pump (2), a compressor (30), a cryogenic heat exchanger (16) and a high pressure pump (10) delivering gas to the engines. According to the present invention the system further comprises an ejector (4) and a suction drum (6); the ejector (4) is arranged to receive LNG motive fluid from the first pump, draw condensate from the cryogenic heat exchanger (16) and discharge a mixture of the motive fluid and condensate to the suction drum (6); and the suction drum (6) is arranged to supply the mixture of the LNG motive fluid and the condensate to the high pressure pump (10).
Abstract:
A gas cabinet including an enclosure containing at least one gas supply vessel and flow circuitry coupled to the gas supply vessel(s). The flow circuitry is constructed and arranged to flow dispensed gas from an on-stream gas supply vessel to multiple sticks of the flow circuitry, with each of the multiple sticks being joined in gas flow communication to a respective gas-utilizing process unit. The flow circuitry is valved to enable sections of the flow circuitry associated with respective ones of the multiple sticks to be isolated from other sections of the flow circuitry, so that process gas can be flowed to one or more of the sticks, while other sticks are being evacuated and purged, or otherwise are closed to dispensed gas flow therethrough.
Abstract:
This invention concerns a system for delivering multiple different chemicals to a process tool, comprising: a first supply canister connected to a first supply manifold that connects to a process line; a second supply canister connected to a second supply manifold that connects to the process line.