摘要:
Disclosed is a hydrogen supply apparatus which can mix an odora nt with hydrogen gas even at a low temperature and can detect t he leakage of the hydrogen gas. The apparatus comprises a gas s torage means for storing hydrogen gas therein, an odorant-addi tion means for adding an odorant to the hydrogen gas fed from t he gas storage means, and a temperature control means for contr olling the temperature of at least one of the hydrogen gas stor ed in the gas storage means, the hydrogen gas fed from the gas storage means and the odorant.
摘要:
The invention relates to an operating method for a cryopressure tank in which cryogenic hydrogen for supplying a motor vehicle fuel cell can be stored under supercritical pressure at 13 bar or more. In order to compensate the pressure drop resulting from the removal of hydrogen from the cryopressure tank, either a heat-transfer agent is supplied to a heat exchanger provided in the cryopressure tank via a regulating valve over a period of time which significantly exceeds the cycle times of a conventional cycle valve or the heat-transfer agent is not supplied to said heat exchanger. Depending on the fill level of the cryopressure tank, the regulating valve is actuated with respect to a desired temperature or a desired pressure of the hydrogen in the cryopressure tank. As long as there is a risk of liquefaction of the residual hydrogen in the cryopressure tank, as is the case when the temperature falls below the critical temperature of 33 K if the pressure drops below the critical pressure of approximately 13 bar, during the removal of cryogenic hydrogen from the cryopressure tank, the temperature is adjusted such that it does not drop below the critical temperature of 33 Kelvin. If the fill state in the cryopressure tank drops further, the pressure in the cryopressure tank is adjusted when there is no longer a risk of liquefaction such that the pressure does not drop below a minimum pressure value which the hydrogen that is removed from the cryopressure tank must have in order to be usable in the consumer without restricting the function thereof.
摘要:
Provided is a novel system and method for delivery of gas from a liquefied state. The system includes (a) a delivery vessel holding a bulk quantity of liquefied gas therein; (b) a heat exchanger disposed on the delivery vessel to provide or remove energy from the liquefied gas only; and (c) a pressure controller for monitoring and adjusting the energy delivered to the vessel. The system and method allow for controlled delivery of liquefied gas from a delivery vessel at a predetermined flow rate. Particular applicability is found in the delivery of gases to semiconductor process tools.
摘要:
A jacket (2) for a vessel (1), arranged to contain a fluid under pressure provided about a central axis (A), with a central portion (9) along the central axis (A), and an end portion (5) at least on one side of said central portion, said end portion comprising an end surface (5a) defining an opening (5b). According to the invention, the end portion (5) forms a portion (8a), at least partially diverging towards the end surface (5a) in a direction along the central axis (A) and in a direction from said central portion (9), against which portion (8a) a closure member (3) is intended to be unreleasably connected. The invention also relates to such a vessel and process for manufacturing the jacket and the vessel, respectively.
摘要:
The invention relates to a tank of the type that comprises a container (4) for housing hydrogen and metallic hydride placed inside the container. According to one part of the invention, the tank includes at least one solid body (6) made from a compacted material containing metallic hydride and a matrix. The invention is suitable, for example, for tanks for internal combustion engines or for fuel cells, in particular for motor vehicles, as well as for any stationary or mobile application involving hydrogen.
摘要:
A method for supplementing the oxygen flow to an industrial scale oxidation reaction employing compressed air as the major source of oxygen for the reaction wherein liquid oxygen is supplied into and vaporized within the feed air stream to the compressor upstream of the compressor to supply additional oxygen to the air and to cool and contract the air upstream of the compressor.
摘要:
A method for supplementing the oxygen flow to an industrial scale oxidation reaction employing compressed air as the major source of oxygen for the reaction wherein liquid oxygen is supplied into and vaporized within the feed air stream to the compressor upstream of the compressor to supply additional oxygen to the air and to cool and contract the air upstream of the compressor.
摘要:
The present invention relates to a method, as well as a system, for filling a container (100) with an amount of liquid carbon dioxide (CO 2 ) which is partially converted into an amount of solid CO 2 into said container (100), for the purpose of maintaining one or more products, loaded into said container (100), at a defined temperature, below a defined temperature, or within a defined temperature range, which temperature or temperature range is below environmental temperature. The invention further relates to a method and a system for providing identification and traceability data determining the container (100) and its loaded one or more products, and for enabling the identification of said container (100) during transport to a particular destination.
摘要:
The present invention relates to a method, as well as a system, for filling a container (100) with an amount of liquid carbon dioxide (CO 2 ) which is partially converted into an amount of solid CO 2 into said container (100), for the purpose of maintaining one or more products, loaded into said container (100), at a defined temperature, below a defined temperature, or within a defined temperature range, which temperature or temperature range is below environmental temperature. The invention further relates to a method and a system for providing identification and traceability data determining the container (100) and its loaded one or more products, and for enabling the identification of said container (100) during transport to a particular destination.