摘要:
The compressor-evaporator system for liquefied gas contained in a tank comprises, in addition to a deice for evaporation by heat exchange with a liquid and devices for conditioning and transferring gas to a pipeline, a motor-driven turbopump comprising a rotary assembly of high bending stiffness on a common shaft line, with at least one high pressure pump, a turbine, and a central electrical machine capable of being used in motor mode or in generator mode. The rotary assembly of the motor-driven turbopump is adapted to present a high speed of rotation, greater than 12,000 rpm, while remaining outside ranges for exciting critical speeds in rotation. All of the internal portions of the motor-driven turbopump are immersed in a cryogenic fluid that is the same as the liquefied gas contained in the tank. The internal cavities of the motor-driven turbopump that are under different thermodynamic conditions are separated by contactless dynamic seals. Electronic power circuits connected to an electricity network control the central electrical machine in motor mode or generator mode.
摘要:
The compressor-evaporator system for liquefied gas contained in a tank comprises, in addition to a deice for evaporation by heat exchange with a liquid and devices for conditioning and transferring gas to a pipeline, a motor-driven turbopump comprising a rotary assembly of high bending stiffness on a common shaft line, with at least one high pressure pump, a turbine, and a central electrical machine capable of being used in motor mode or in generator mode. The rotary assembly of the motor-driven turbopump is adapted to present a high speed of rotation, greater than 12,000 rpm, while remaining outside ranges for exciting critical speeds in rotation. All of the internal portions of the motor-driven turbopump are immersed in a cryogenic fluid that is the same as the liquefied gas contained in the tank. The internal cavities of the motor-driven turbopump that are under different thermodynamic conditions are separated by contactless dynamic seals. Electronic power circuits connected to an electricity network control the central electrical machine in motor mode or generator mode.
摘要:
A double-walled liquefied gas tank characterized in that one or more insulation spaces about the vat containing the liquid are filled with a mixture, consisting mainly of argon trapped by gravity, between the outer walls of the vat and: a) for the insulating space (2) located below the bottom wall of the vat, the base plate (3) supporting the vat; b) for the insulating spaces (5) and (6), the circular chamber (16); c) for the insulation spaces (7) and (25), the circular chamber (16) and the roof (17); d) for the insulation space (14), the suspended and sealed ceiling (12), respectively.
摘要:
The invention relates to a ship that is to be coupled electrically to a terminal, and also to a method and a method and a device for connecting an electrical power line (1) between a ship (3) and a terminal (5), comprising: unwinder means (7) for unwinding a traction cable (13) from the ship (3) towards a connection end (15) of said electrical power line (1); lashing means (9) for lashing said traction cable (13) to said connection end (15); and traction means (11) for pulling said electrical power line towards the ship (3) so as to connect said connection end (15) with an electrical interface (17a) of the ship (3).
摘要:
A device and a method for powering a berthed ship. The powering device includes an onboard connector, a shuttle (40), a traction element (41) for the shuttle, which includes elements for engaging with a ground connector (30) matching the onboard connector, the traction element being provided for pulling the shuttle and the ground connector when they are engaged such that the ground connector is in electrical continuity with the onboard connector. The device can be used for powering a ship without running the onboard generators thereof. For methane tankers in particular, the device can be used for supplying electricity to the grid by burning the gas vapors. The device can be automated, thereby avoiding fatigue and electrical risks.
摘要:
The invention relates to an energy system using as fuel natural gas stored in liquid form in at least one tank containing liquefied natural gas, the system comprising a feeder device provided with a heater device for heating liquefied natural gas and/or natural gas vapor, and making use of a thermoelectric power unit including rotary electrical machines, the system further comprises a first heat exchanger system associated with a cooler device for cooling the rotary electrical machines, and a second heat exchanger system associated with the heater device, the first heat exchanger system being coupled to the second heat exchanger in order to enable heat to be transferred from the cooler device to the heater device.
摘要:
A ship that is to be coupled electrically to a terminal a method, and a method and a device for connecting an electrical power line (1) between a ship (3) and a terminal (5). The device includes an unwinder (7) for unwinding a traction cable (13) from the ship (3) towards a connection end (15) of the electrical power line (1); a lashing device (9) for lashing the traction cable (13) to the connection end (15); and a traction device (11) for pulling the electrical power line towards the ship (3) so as to connect the connection end (15) with an electrical interface (17a) of the ship (3).
摘要:
Connection device (1) designed to connect, particularly a ship in a port, includes a connector (2), a carriage (3) forming a housing (17) for the connector when it is not connected, and a runway track (4) on which to move the carriage, the connector being designed to be connected by cable (30) to a land-based network. Such a device ensures that the correct positioning of the ship relative to the connector can be guaranteed.
摘要:
The invention relates to a gas incinerator device comprising a combustion chamber having a heater body producing combustion gas, at least one fan feeding the heater body with cool air to ensure combustion, and an exhaust chimney for exhausting the mixture formed by the combustion gas and the cool air, the combustion chamber being mounted in the exhaust chimney in such a manner as to leave an annular duct between the combustion chamber and the exhaust chimney to pass a flow of combustion cool air and/or of cooling air coming from said at least one fan, said combustion chamber having a plurality of injection orifices and/or tubes enabling a fraction of the cool air flowing in the annular duct to be injected therein.
摘要:
The invention relates to feeding a gas terminal with energy from a ship transporting liquefied gas while said liquefied gas is being transferred between a tank of the ship and a tank of the gas terminal, wherein a portion of the energy produced by the propulsion system of the ship is delivered to the gas terminal.