Safety withdrawal system for a cryogenic container
AssigneesCryoshelter LH2 GmbH, Cryoshelter BioLNG GmbH
InventorMatthias Rebernik
Life of this patent
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Abstract
One example of a safety withdrawal system includes a cryogenic container, a withdrawal line and an economizer situated between the withdrawal line and the cryogenic container for withdrawing cryogenic fluid in liquid phase and gas phase, and the economizer is configured as an electric economizer having two controllable valves that are respectively currentless closed, which each may block the withdrawal of the liquid phase or the gas phase from the cryogenic container. The safety withdrawal system further includes an emergency stop off-switch that may be manually actuated, which is connected to the two currentless closed valves of the electric economizer and is configured to simultaneously block the withdrawal of cryogenic fluid by both valves upon actuation.
Claims12
A safety withdrawal system, comprising a cryogenic container, a withdrawal line and an economizer situated between the withdrawal line and the cryogenic container for withdrawing cryogenic fluid in liquid phase and gas phase,
- wherein the economizer is configured as an electric economizer having two controllable and currentless closed valves, which each may block the withdrawal of the liquid phase or the gas phase from the cryogenic container,
- wherein the safety withdrawal system further comprises a control device for controlling the valves,
- wherein the safety withdrawal system further comprises an emergency stop switch, which is connected to the two currentless closed valves of the electric economizer and is configured to simultaneously block the withdrawal of cryogenic fluid by both valves upon actuation, and
- wherein the emergency stop switch is a manually actuatable emergency stop switch and/or wherein the safety withdrawal system further comprises a control unit connected to the emergency stop switch, which is configured to detect an accident and to actuate the emergency stop switch upon detection of an accident,
- wherein the valves are always closed if there is no signal present from the emergency stop switch and are each closed or open, depending on the control of the control device, when a signal of the emergency stop switch is applied onto the valves.
A safety withdrawal system, comprising a cryogenic container, a withdrawal line and an economizer situated between the withdrawal line and the cryogenic container for withdrawing cryogenic fluid in liquid phase and gas phase,
- wherein the economizer is configured as an electric economizer having two controllable and currentless closed valves, which each may block the withdrawal of the liquid phase or the gas phase from the cryogenic container,
- wherein the safety withdrawal system further comprises an emergency stop switch, which is connected to the two currentless closed valves of the electric economizer and is configured to simultaneously block the withdrawal of cryogenic fluid by both valves upon actuation, and
- wherein the emergency stop switch is a manually actuatable emergency stop switch and/or wherein the safety withdrawal system further comprises a control unit connected to the emergency stop switch, which is configured to detect an accident and to actuate the emergency stop switch upon detection of an accident,
- further comprising a currentless closed valve controlled by a motor ignition in the withdrawal line, wherein the emergency stop switch is connected to the currentless closed valve controlled by the motor ignition as well as to the two currentless closed valves of the electric economizer and is configured to simultaneously block, upon actuation, the withdrawal of cryogenic fluid by all three valves.
Dependencies are inferred from the claim text.