671results about "Gas handling/storage effects" patented technology

A fluid storage and supply device comprising a cryogenic reservoir for storing liquefied fluid, a withdrawing circuit comprising a first withdrawing pipe having a first upstream end connected to the upper part of the reservoir and a second downstream end intended to be connected to a user member, the first withdrawing pipe comprising a first heating heat exchanger situated outside the reservoir and a second heating heat exchanger situated inside the reservoir, the withdrawing circuit comprising a set of valve(s) configured to ensure the passage of a flow of fluid circulating from the first end towards the second end by passing through the first heat exchanger and then through the second heat exchanger or by passing solely through the first heat exchanger without passing through the second heat exchanger, characterized in that the device further comprises a system for pressurizing the reservoir comprising a pressurizing pipe separate from the withdrawing circuit and comprising two ends respectively connected to the upper and lower parts of the reservoir, a vaporizing heat exchanger and a set of valve(s) configured to allow the withdrawal of liquid from the reservoir, the heating thereof in the vaporizing heat exchanger and the reintroduction thereof into the reservoir.

A hydrogen gas supply apparatus according to one aspect of the present invention includes a compressor configured to compress hydrogen gas and supply the hydrogen gas compressed to a pressure accumulator which accumulates the hydrogen gas, an adsorption column disposed between the discharge port of the compressor and the pressure accumulator, and configured to include an adsorbent for adsorbing impurities in the hydrogen gas discharged from the compressor, and a plurality of valves disposed at the gas inlet / outlet port side of the adsorption column, being at a discharge port side of the compressor, and configured to be able to seal the adsorption column, wherein the space in the adsorption column is sealed using the plurality of valves such that the inside of the adsorption column is maintained to have a high pressure by the hydrogen gas compressed in the case where the compressor is stopped.

The invention relates to a cryogenic fluid transfer device comprising a first tank storing a cryogenic fluid, a second cryogenic receiving tank, a fluid transfer circuit connecting the tanks and comprising a first pipe that connects the upper parts of the first and second tanks and has a first valve, a second pipe that connects the lower part of the first tank to the second cryogenic tank and has a pump, the pump and the first valve being configured to place the upper parts of the first and second tanks in fluidic communication, the first pipe comprising a bypass portion equipped with a heater and a set of one or more valves configured to make it possible to modify the temperature of the flow of gas transferred from the second cryogenic tank to the first tank via the first pipe.

The invention relates to a storage cryostat (2) for liquid helium (7), suitable for transferring liquid helium (7) from the storage cryostat (2) into an application cryostat (3), wherein the storage cryostat (2) comprises: - a vacuum-insulated helium vessel (6) for liquid helium (7), the helium vessel (6) having a vertical height HHB that can be filled with liquid helium (7), - a transfer line (4) for liquid helium (7), having an inlet opening (20) which opens into a lower region of the helium vessel (6), in particular into a lower fifth of the helium vessel (6), and - a convection-suppression system (9) which is arranged within the helium vessel (6) and impedes vertical convection of liquid helium (7) in the helium vessel (6), characterised in that the convection-suppression system (9) is formed in the helium vessel (6) over a height interval (IKS) with a vertical height HKS, where HKS ≥ 0.50 × HHB, and in that the convection-suppression system (9) impedes the vertical convection of liquid helium (7) in the helium vessel (6) over the region of the height interval (IKS) of the convection-suppression system (9). The invention provides a storage cryostat that enables simple and rapid transfer of liquid helium from the storage cryostat into the application cryostat, with minimised helium losses.

A hydrogen supply system includes a detachable hydrogen tank, a hydrogen consumption apparatus that consumes hydrogen in the hydrogen tank, and a control device. The hydrogen consumption apparatus includes a detachment and attachment mechanism that detaches the hydrogen tank from the hydrogen consumption apparatus and attaches the hydrogen tank to the hydrogen consumption apparatus. The detachment and attachment mechanism includes a motor that controls detachment and attachment of the hydrogen tank from and to the hydrogen consumption apparatus. When a torque value of the motor exceeds a threshold during the control of the detachment and attachment of the hydrogen tank from and to the hydrogen consumption apparatus, the control device returns the hydrogen tank to a position where a moving process in which the threshold being exceeded is detected is started.

Techniques for detecting a high gas pressure situation within a gas delivery system (e.g., for natural gas delivery to homes and businesses) are described. In one example, a device measures gas pressure. If a pressure over a threshold value is detected, a nearby device is messaged. The nearby device either confirms the over-pressure condition or indicates it may be more localized. If the condition is present within an area of the gas delivery system and / or within a group of devices within the gas delivery system, protective measures may be taken, such as closing valves providing gas to a number of service sites.

The invention relates to a method of operating and / or fueling a compressed gas supply system (34) having at least two compressed gas tanks (15, 16, 17, 18, 19) connected to an anode path (2) of a fuel cell system (1).To increase thermal safety during operation and / or fueling of the compressed gas supply system (34), the valve devices (21, 22, 23, 24, 25) assigned to the pressure tanks (15, 16, 17, 18, 19), which comprise a filling path with an actively switchable filling valve and a discharge path with an actively switchable discharge valve for each of the compressed gas tanks (15, 16, 17, 18, 19) are individually actuated via an electronic control unit, which is connected to a sensor device having at least one sensor, which senses a current temperature in the respective valve installation (21, 22, 23, 24, 25).

The invention relates to a zero-loss methane propellant supercooling filling system and method, and the system comprises a liquid nitrogen supply unit, a methane supply unit, a supercooling methane storage tank, a heat exchange pipeline unit and a temperature control unit; the heat exchange pipeline unit comprises a first heat exchanger, a second heat exchanger, a third heat exchanger and a separation and recovery module; the liquid nitrogen supply unit is connected with the cold end of the first heat exchanger. The cold ends of the first heat exchanger, the second heat exchanger and the third heat exchanger are sequentially connected in series. Methane output by the methane supply unit exchanges heat with the third heat exchanger and then is input into the supercooled methane storage tank; methane output by the exhaust end of the supercooled methane storage tank exchanges heat with the second heat exchanger and then is input into the separation and recovery module; and the separation and recovery module is connected with the supercooled methane storage tank and the methane supply unit and is used for converging the recovered methane into the supercooled methane storage tank and / or returning the recovered methane to the methane supply unit. According to the method, freezing in methane supercooling filling is effectively avoided, and lossless filling is achieved.

Disclosed is a method for whole filling process supervision of smart gas and an IoT system, implemented by a gas company management platform of the IoT system, comprising: obtaining monitoring data of a gas filling container; obtaining usage information of the gas filling container; determining a usage index of the gas filling container, and sending the usage index to a gas user platform; determining a target gas user and sending container replacement information to the target gas user, and sending a parameter adjustment instruction to an electronic monitoring device of the gas filling container corresponding to the target gas user; determining whether the monitoring data and / or the usage information satisfy a preset data condition; and in response to determining that the monitoring data and / or the usage information satisfy the preset data condition, adjusting the target gas user, interacting with a public user platform, and displaying an adjusted target gas user.

A hydrogen supply system including: a plurality of hydrogen tanks that is attachable and detachable; a hydrogen consumption device that consumes hydrogen of the hydrogen tanks; and a control device is provided. The hydrogen consumption device includes an attaching-detaching mechanism including a plurality of motors that controls attaching and detaching of the hydrogen tanks with respect to the hydrogen consumption device, the motors corresponding to the attaching and detaching of the respective hydrogen tanks. The control device disposes, based on a temperature of each of the motors, a hydrogen tank of the hydrogen tanks to a hydrogen supply start position at which the hydrogen tank and the hydrogen consumption device are connected in a state in which the hydrogen tank is allowed to supply hydrogen to the hydrogen consumption device, or disposes the hydrogen tank to a hydrogen supply standby position.

The present invention relates to a system and method for regasification of liquefied gas for vessels, which generates power by recovering cold heat discarded in regasification of liquefied gas to improve energy efficiency. The liquefied-gas regasification system for vessels includes: a vaporizer gasifying liquefied gas into a regasified gas through heat exchange with a first heating medium; a trim heater heating the regasified gas to a temperature required for a gas consumer through heat exchange with a second heating medium when the regasified gas is delivered from the vaporizer to the gas consumer; a first cycle in which the first heating medium is circulated; and a second cycle in which the second heating medium is circulated, wherein the first cycle includes a first heat exchanger gasifying the first heating medium to be supplied to the vaporizer through heat exchange with a heat source; and an expander-generator generating power through expansion of the first heating medium gasified by the first heat exchanger, and the second cycle includes a second heat exchanger heating the second heating medium to be supplied to the trim heater through heat exchange with a heat source.

Proposed is a hydrogen management system in which location information, pressure information, temperature information, collision information, hydrogen concentration information, and flow rate information are transmitted from sensors mounted in a manifold of each of a plurality of tube trailers (T1, T2, . . . ), and the hydrogen consumption amount, the remaining hydrogen amount, the number of users, etc. are transmitted from the plurality of hydrogen charging stations (S1, S2, . . . ) so that current hydrogen storage and demand amounts are predicted, thereby managing an entire hydrogen cycle, including hydrogen production, in an integrated manner.

A cryogenic liquid storage system comprising an outer tank 22, and an inner tank 24 configured to hold cryogenic liquid, an isolation valve 40, and a collection chamber 26, outside the outer tank, and

It is inconvenient for users because it is not clear how much a removable hydrogen tank can be used with each hydrogen consuming device. [Solution] The information processing device includes a memory unit in which information on multiple hydrogen consuming devices that operate by receiving hydrogen from a removable hydrogen tank is registered, a remaining amount acquisition unit that acquires the remaining amount of hydrogen in the hydrogen tank based on information transmitted from a hydrogen consuming device among the multiple hydrogen consuming devices that is equipped with a hydrogen tank, a calculation unit that calculates the operable amount of each of the multiple hydrogen consuming devices based on the remaining hydrogen amount acquired by the remaining amount acquisition unit, and a display control unit that displays the calculation results by the calculation unit on a specified display unit.

The present invention relates to a boil-off gas reliquefaction system for a ship. The boil-off gas reliquefaction system for a ship according to the present invention, whereby boil-off gas generated from a liquefied natural gas (LNG) storage tank for a ship is reliquefied, comprises: a first heat exchanger for recovering cold heat from a first boil-off gas generated in the storage tank; a multi-stage compressor for compressing the boil-off gas that has passed through the heat exchanger; a high-pressure gas line for supplying high-pressure gas that is supplied from the multi-stage compressor; a low-pressure gas line for supplying the boil-off gas, which is supplied from the multi-stage compressor, as a low-pressure gas by using a decompression valve; a second heat exchanger in which heat exchange occurs between the high-pressure gas line and the low-pressure gas line downstream of the decompression valve; and a third heat exchanger by which the boil-off gas that has passed through the second heat exchanger is cooled by means of heat medium oil of a cryogenic chiller.

The application provides a temperature monitoring system for gas fuel supply, comprising a liquid storage module, a temperature monitoring module and a temperature control module; the liquid storage module comprises a liquid storage unit, the liquid storage unit is provided with a first storage space and a second storage space, the first storage space stores liquefied natural gas, the first storage space is communicated with the second storage space through a pipeline, and the pipeline is provided with a gasification valve; the temperature monitoring module comprises a first temperature probe, and the first temperature probe is used for monitoring the temperature of the liquefied natural gas in the first storage space; the temperature control module is used for receiving the temperature signal of the first temperature probe; when the temperature of the liquefied natural gas is higher than a first preset temperature, the gasification valve is opened, so that the liquefied natural gas in the first storage space enters the second storage space through the gasification valve; and when the temperature of the liquefied natural gas is lower than the first preset temperature, the gasification valve is closed. The application aims to provide a temperature monitoring system which can ensure that the temperature of liquefied natural gas is kept below the boiling point, so that the liquefied natural gas is maintained in a liquid state.

A fuel system having a hydrogen fuel tank for fueling a fuel feed and propulsion system. The fuel system having a jet pump within the hydrogen fuel tank, at least one primary pump receiving fuel from the jet pump and pressurizing fuel to an outlet path and a first fuel recirculation path configured to selectively recirculate fuel to the hydrogen fuel tank. The first fuel recirculation path is fluidly connected to the outlet path. The first fuel recirculation path includes a heat exchanger positioned within the hydrogen fuel tank to cool fuel received from at least one of the fuel feed system or a tank pressurization system. The heat exchanger and a Joule-Thomson expansion at the jet pump minimizes recirculated fuel temperature, which in combination with a selective flow recirculation rate improve the life of the primary pump downstream.

Disclosed herein is a work machine having a gas engine and a gas storage system having at least one gas storage tank. The controller is provided with a controller configured to determine a leakage condition within the gas storage system and / or the gas engine.

To provide a hydrogen supply system capable of avoiding continuation of pinching of foreign matter or the like.SOLUTION: A hydrogen supply system comprising: a detachable hydrogen tank; a hydrogen consuming device configured to consume hydrogen in the hydrogen tank; and a control device, wherein the hydrogen consuming device comprises a detachment mechanism configured to detach the hydrogen tank from the hydrogen consuming device, when a torque value of the motor exceeds a threshold value during attachment / detachment control of the hydrogen tank to / from the hydrogen consumption device, the control device returns the hydrogen tank to a position at which a moving stroke in which the torque value exceeds the threshold value is started.SELECTED DRAWING: Figure 1

The invention relates to an arrangement for transferring liquid hydrogen from a first storage vessel (1) into a second storage vessel (2), in which the storage vessel to be filled can be filled with a filling quantity of more than 200 kg at filling rates of more than 1 ton per hour, with only a filling line, but no return line, being required for this.

This invention discloses a method for connecting and disconnecting a hydrogen storage cylinder from a hydrogen refueling device, as well as a method for filling the cylinder with hydrogen, relating to the field of hydrogen production and refueling. The filling method includes: pushing the hydrogen storage cylinder to be filled into the gas cylinder compartment until the quick-connect male connector is installed onto the quick-connect female connector and locked in place, thus connecting the gas path and completing the connection between the hydrogen storage cylinder and the hydrogen refueling device; turning on the switch of the hydrogen production module to start the electrolyzer to produce hydrogen and fill the hydrogen storage cylinder with hydrogen; detecting that the hydrogen storage cylinder has been filled with hydrogen, turning off the hydrogen production module; pressing a button, which, through a locking and disconnecting device, pushes the opening and closing sliding sleeve to the side away from the quick-connect male connector, causing the quick-connect female connector to pop out from the quick-connect male connector and the hydrogen storage cylinder, completing the disconnection of the hydrogen storage cylinder from the hydrogen refueling device. This invention achieves automatic and rapid assembly and disassembly of the hydrogen storage cylinder and the hydrogen refueling device through the cooperation between the locking and disconnecting device and the quick-connect male and female connectors, realizing automatic hydrogen filling of the hydrogen storage cylinder.

A mouthpiece for a pressure vessel may include a lip design that helps effectively reduce stress at a location where the mouthpiece may be engaged to the vessel. Embodiments may include a contoured annular lip element for attachment to an end of a container to position a mouthpiece within an opening at the end of the container for fluidly connecting the container to another factory element. The adapter may include one or more geometries to position a weld seam for joining the adapter to the end of the container such that the weld seam is located at a preselected location to experience a preselected level of stress during operation of the container to facilitate use of a container with a reduced overall wall thickness, therefore, the container with low total weight and low capital cost is provided, and the easiness of maintenance can be improved.

A system and method are provided for such a hydrogen refueling station. The system includes a cryotank for storing liquid fuel having liquid and gas phases, a pump for supplying a first flow of the liquid fuel in liquid phase from the cryotank, a heat exchanger for converting at least a portion of the first flow to gaseous fuel, a dispenser for dispensing at least a portion of the gaseous fuel to a receiving fuel tank, a refrigeration unit integrated with the heat exchanger, and a backup power unit. The refrigeration unit and the heat exchanger exchange heat with each other, and the refrigeration unit provides cooling capacity to equipment in an environment where cooling is required. The backup power unit generates electrical power by using a second flow of the liquid fuel in the gaseous or liquid phase or both.

A system for dispensing a cryogenic fluid includes a bulk tank configured to contain a supply of a cryogenic liquid, a first sump and a first liquid feed valve configured to direct liquid from the bulk tank to the first sump when in an open condition and to prevent transfer of liquid from the bulk tank to the first sump when in a closed condition. A first positive displacement pump is positioned within the first sump and configured to pump and be submerged in cryogenic liquid when the first sump contains cryogenic liquid above a predetermined liquid level within the first sump. A delivery line is in fluid communication with an outlet of the first positive displacement pump and is configured to direct cryogenic fluid from the first positive displacement pump to a use device when the first positive displacement pump is activated.

A high pressure tank system includes a group of high pressure tanks including a plurality of cylindrically-shaped high pressure tanks which are filled with a fuel gas, an accommodation unit configured to accommodate the group of high pressure tanks, and a discharge pipe through which a discharged gas that is guided from the motive power source flows. The axis line of each of the plurality of high pressure tanks extends in a first direction that is directed along a horizontal direction. The plurality of high pressure tanks are arranged in a second direction that is perpendicular to the first direction and directed along the horizontal direction. The discharge pipe is disposed between one pair of high pressure tanks that are adjacent to each other among the plurality of high pressure tanks, and the discharge pipe extends along the first direction.

This method for bidirectional communication for hydrogen fueling comprises the steps of: negotiating a communication protocol with a dispenser for fueling hydrogen mobility with hydrogen, the communication protocol being negotiated on the basis of interoperability or compatibility-related information checked in advance with the dispenser; negotiating a fueling protocol; negotiating a fueling parameter on the basis of the fueling protocol; and, after hydrogen fueling is started on the basis of the negotiated fueling protocol and the negotiated fueling parameter, monitoring the state of the hydrogen fueling via fueling loop request messages and fueling loop response messages.

A gas supply device according to the disclosure includes a first pressure vessel in which liquefied gas is stored, a second pressure vessel configured to generate gas by vaporizing the liquefied gas supplied from the first pressure vessel, a liquefied gas supply path configured to allow the liquefied gas to selectively flow from the first pressure vessel toward the second pressure vessel, and a gas supply path configured to allow the gas generated in the second pressure vessel to selectively flow toward a gas utilization unit.

Method (200) for preventing or limiting icing of a pressurized gas distribution station (100), the station (100) comprising a filling line having in series one end connected to a pressurized gas source (1), a first heat exchanger (2) for cooling a gas stream from the source (1), and a distribution terminal (3) for distributing the cooled stream to a tank (4) to be filled, the distribution station (100) also comprising a bypass line (L4) from the filling line at the first heat exchanger (2), the method (200) comprising a step (S1) for transferring a relatively hot gas stream to the distribution terminal (3) via the bypass line (L4), the relatively hot gas stream being at a temperature higher than a predefined temperature at the outlet of the first heat exchanger (2). Abstract figure: Fig. 1

A fuel cell power-supply management device and a fuel cell power-supply management method enabling efficient recovery and utilization of boil-off gas. The fuel cell power-supply management device includes: a boil-off gas accumulation amount recognition unit that recognizes an accumulation amount of the boil-off gas in a boil-off gas accumulation unit; a demand status recognition unit that recognizes a demand status for each use of the boil-off gas; a boil-off gas recovery timing determination unit that determines a recovery timing of the boil-off gas accumulated in the boil-off gas accumulation unit, based on an accumulation amount of the boil-off gas recognized by the boil-off gas accumulation amount recognition unit or a demand status of the boil-off gas recognized by the demand status recognition unit; and a boil-off gas utilization processing arrangement unit that arranges utilization processing of the boil-off gas recovered from the boil-off gas accumulation unit at the recovery timing.