699results about "Container filling without pressure" patented technology

The invention discloses a liquid hydrogen storage tank pressure prediction method, device and system, and the method comprises the steps: obtaining process parameters of a liquid hydrogen storage tank, and carrying out the preprocessing, and obtaining input parameters; and inputting the input parameters into the trained liquid hydrogen storage tank pressure prediction model, and outputting an in-tank pressure prediction value of the liquid hydrogen storage tank after the predicted storage duration. According to the method, the adverse effect on the generalization performance of the neural network due to too few data samples is reduced, and the precision of predicting the pressure of the liquid hydrogen storage tank is effectively improved.

The invention relates to a liquefied gas storage device, comprising: a support structure (1); a sealed and thermally isolated tank; and a dome structure (25) comprising: an inner barrel (29) passing through an aperture (27) formed in the support structure (1); -an outer barrel (26) arranged around the barrel (29), the outer barrel (26) being fixed to the support structure (1) around an annular portion (34) of the support structure (1); and-a secondary discharge duct (61) formed in the secondary space (52); wherein the annular portion (34) of the support structure (1) comprises a plurality of through-openings (38) distributed around the annular channel portion and allowing gas to flow from the secondary thermal insulation barrier (12) to the secondary space (52).

The invention discloses a solid-gas coupling hydrogen storage system and a flow and pressure coordinated regulation and control method thereof. The system comprises a gaseous hydrogen storage tank, a solid hydrogen storage tank, a hydrogen coupling regulation and control device, a hydrogen buffer tank, a solid hydrogen storage thermal management system, a high-pressure proportional valve, a low-pressure proportional valve, a three-way valve and a hydrogen storage valve. The gaseous hydrogen storage tank is connected with the hydrogen coupling regulation and control device through a pipeline, and high-pressure hydrogen is conveyed to the high-pressure inlet end of the hydrogen coupling regulation and control device. The low-pressure inlet end of the hydrogen coupling regulation and control device is connected with the solid hydrogen storage tank through a pipeline, and the outlet end of the hydrogen coupling regulation and control device is connected with the hydrogen buffer tank through a pipeline; and the pipelines of the gaseous hydrogen storage tank and the solid hydrogen storage tank are simultaneously connected with the three-way valve. According to the system, efficient and safe hydrogen storage and supply are achieved through the synergistic effect of all the components, and reliable technical innovation and support are provided for hydrogen energy application.

To provide a dome structure penetrating through a ceiling wall of a liquefied natural gas storage tank in which gas present in a secondary heat insulation barrier is circulated in a secondary space of the dome structure.SOLUTION: A liquefied gas storage facility includes a load bearing structure, a closed heat insulation tank and a dome structure. In the liquefied gas storage facility, the dome structure includes: an inner drum passing through an opening (27) formed in the load bearing structure; an outer drum (26) disposed around the inner drum and fixed to the load bearing structure around an annular part (34) of the load bearing structure; and a secondary discharge duct that appears in a secondary space. The annular part (34) of the load bearing structure includes a plurality of through holes (38) distributed around an annular passage part and allowing circulation of gas from a secondary heat insulation barrier to the secondary space.SELECTED DRAWING: Figure 4

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 application discloses a land LNG double-loading vehicle arm fine positioning butt joint system, which comprises an LNG double-loading vehicle arm, a stand column camera arranged on the upper part of a support stand column, a liquid-phase camera and a liquid-phase marker arranged on the hard pipe at the end of a liquid-phase arm, a gas-phase camera and a gas-phase marker arranged on the hard pipe at the end of a gas-phase arm, a liquid-phase arm flange arranged at the end of the liquid-phase arm and used for butt joint with a tank car liquid-phase flange, and a gas-phase arm flange arranged at the end of the gas-phase arm and used for butt joint with a tank car gas-phase flange. The application further discloses a land LNG double-loading vehicle arm fine positioning butt joint method. The first virtual flange position is taken as a coarse positioning terminal point, three virtual flanges are arranged along the central axis direction of the tank car liquid-phase flange after the first virtual flange as transition positions for step-by-step fine positioning butt joint, and the step-by-step positioning butt joint realizes multi-step control step-by-step butt joint in the fine positioning process, thereby improving the butt joint precision.

The utility model discloses a liquefied air energy storage system which comprises a molecular sieve water separator and a molecular sieve adsorption tower, a separator air output pipe is connected with a top gas connecting pipe of the molecular sieve adsorption tower, and a bottom gas connecting pipe of the molecular sieve adsorption tower is connected with a cold box front compressor unit. The cold box front compressor unit is communicated with an air pipeline in the cold box, and an outlet of the air pipeline in the cold box is communicated with a first liquefied air storage tank through a first liquefied air output pipe with a first throttling valve; the output end of a liquid air pressure pump on a first liquefied air storage tank output pipe of the first liquefied air storage tank is communicated with the air input end of the expansion unit, the air output end of the expansion unit is provided with a hot blowing conveying pipe and a cold blowing conveying pipe, and the hot blowing conveying pipe is communicated with a bottom gas connecting pipe through a first heater and an electric heater; and the output end of the cold blowing gas conveying pipe is connected to the output end of the electric heater output pipe. The device has the advantages of simple structure, low energy consumption and full utilization of heat energy.

The invention relates to a liquid cargo system of a low-pressure liquid carbon dioxide storage and transportation ship and a transfer method. The liquid cargo system comprises a low-pressure storage tank, a conveying pump, an external conveying system, a self-evaporation pressure maintaining system, an injection system, a volatile gas conveying and processing system, a liquid-phase collecting pipe, a high-pressure collecting pipe, a gas-phase collecting pipe, a gas collecting pipe, a liquid cabin inlet pipe and a liquid cabin outlet pipe. Wherein the output system is used for conveying liquid carbon dioxide to storage shore stations with different storage pressures; the self-evaporation pressure maintaining system is used for controlling the pressure in the low-pressure storage tank; the injection system is used for injecting liquid carbon dioxide of the storage shore station into the low-pressure storage tank; the volatile gas conveying and processing system is used for conveying and processing volatile gas in the process of outwards conveying or injecting carbon dioxide. Through the multi-process design, the self-evaporation pressure maintaining system and the excessive gaseous carbon dioxide liquefaction back-to-cabin process, low-pressure storage and transportation are effectively compatible with medium and high-pressure storage shore stations, and the compatibility of the ship and the operation flexibility of the ship are improved.

The utility model relates to the technical field of power emission, in particular to a phase change acting system. The phase change acting system comprises a phase change pipe, the phase change pipe is provided with a pressure relief end and a filling end, a piston for controlling a pressure relief opening of the pressure relief end of the phase change pipe to be opened and closed is arranged in the phase change pipe, and the filling end is provided with a liquid carbon dioxide filling valve and a valve closing air cylinder for providing force needed by the piston for closing the pressure relief opening. The piston can open and close the pressure relief opening under the action of the pressure difference between the interior of the phase change pipe and the interior of the valve closing air cylinder, the valve closing air cylinder is connected with an air filling valve, the air filling valve is connected with an air source through an air inflation pipe, and the liquid carbon dioxide filling valve is connected with a liquid carbon dioxide storage tank and a liquid carbon dioxide filling machine through a liquid filling pipe. The liquid carbon dioxide and the compressed air can be filled without assembling and debugging again, so that continuous and rapid filling is realized, the phase change pipe can be ensured to do work outwards rapidly and uninterruptedly, and the overall operation efficiency is improved.

The invention discloses an LNG (Liquefied Natural Gas) cold energy gradient utilization system coupled with seawater desalination and liquefied air energy storage. A seawater desalination module of the system carries out seawater desalination by using cold energy of liquefied natural gas, and a liquefied air energy storage module carries out air compression and liquefaction in a power off-peak period and releases energy to generate power in a power peak period; the system can switch a seawater desalination priority mode, an energy storage peak regulation mode and a composite energy supply mode. According to the system, a double-loop structure is adopted, liquefied natural gas cold energy, solar heat energy, electric energy and environmental resources are fully coupled, multi-energy complementation, gradient utilization and combined cooling heating and power are achieved, flexible switching of three cooperative operation modes is achieved, the operation state of the system can be adjusted according to the external load requirement, the resource utilization efficiency and the operation economy are improved, and the energy consumption is reduced. The modular design has good expandability and engineering adaptability, has the characteristics of being green, energy-saving, environment-friendly, high in safety and stable in operation, and is suitable for guaranteeing regional water resources and balancing power generation fluctuation of unstable green energy.

The utility model belongs to the technical field of liquid hydrogen stations, and particularly relates to a liquid hydrogen station BOG recycling system which comprises a liquid hydrogen tank car, a liquid hydrogen storage tank, a hydrogen liquefying device and a hydrogen recycling device. A gas outlet of the liquid hydrogen storage tank is respectively connected with the hydrogen liquefaction device and the hydrogen recovery device through a BOG gas phase recovery pipeline, and a liquid outlet of the hydrogen liquefaction device is connected with a liquid inlet of the liquid hydrogen storage tank. According to the system and the control scheme, BOG generated in the operation process of the liquid hydrogen filling station is reasonably recovered, complete recovery and efficient storage of BOG hydrogen are achieved, the system and the control scheme are high in automation degree and good in applicability, the on-site operation time of operation personnel is shortened, and the production efficiency is improved. And the overpressure emission or direct emission of hazardous gases such as BOG (boil-off gas) in the transportation process of the liquid hydrogen tank car is reduced.

The utility model discloses a hydrogen storage and supply device and a hydrogen fuel cell heat and power cogeneration system, and relates to the technical field of fuel cells. The hydrogen storage and supply device realizes normal-temperature and normal-pressure storage of hydrogen on the basis of a liquid organic matter hydrogen storage technology, and the principle is that hydrogen storage is realized by virtue of reversible reaction and hydrogenation reaction of unsaturated liquid organic matters such as olefin, alkyne or aromatic hydrocarbon and hydrogen, and hydrogen release is realized by virtue of dehydrogenation reaction. According to the liquid organic matter hydrogen storage technology, the hydrogen storage density is 5%-10%, and the hydrogen storage amount is large; and the hydrogen storage carrier is a liquid organic matter, normal-temperature and normal-pressure transportation can be achieved, convenience and safety are achieved, the requirement for the hydrogen liquid tank is low, and hydrogen leakage is basically avoided during transportation. And during dehydrogenation reaction, the temperature required by hydrogen desorption is low, the energy consumption is low, the hydrogen desorption rate is adjustable, and the hydrogen desorption device can be adapted to various hydrogen fuel cells. The hydrogen fuel cell heat and power cogeneration system collects and utilizes the lost heat of the cell, so that the comprehensive utilization rate of the hydrogen fuel cell is improved.

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.

The utility model provides a storage tank control system which comprises a liquid phase pipeline, a gas phase pipeline and a monitoring assembly which are communicated on a storage tank, and a liquid phase valve and a gas phase valve are respectively arranged on the liquid phase pipeline and the gas phase pipeline. The liquid phase valve and the gas phase valve are both electrically connected with the controller, and the monitoring assembly is used for monitoring the state of the storage tank and forming monitoring information. The monitoring assembly is electrically connected with the controller so as to transmit monitoring information to the controller, and the controller can control the liquid phase valve and the gas phase valve to be switched on or switched off according to the monitoring information. And the controller can be wirelessly connected with the operation platform and the external filling equipment through the wireless communication assembly, so that an operator of the operation platform can remotely monitor the filling of the storage tank by the external filling equipment in real time. And the external filling equipment can identify and match the storage tank through the wireless communication assembly, and selectively fill the storage tank with a medium according to the monitoring information, so that the filling of the storage tank is completed.

The utility model provides a carbon dioxide trapping and sealing device which comprises a working table and a weighing table, the weighing table is arranged below the working table, a sealing tank is arranged at the top of the weighing table, a sealing assembly is arranged on the sealing tank and comprises a sealing plug capable of sealing a liquid inlet in the top of the sealing tank, and the sealing plug is arranged in the liquid inlet in a penetrating mode. A liquefying pipeline is arranged at the top of the workbench, a liquefying cavity is formed in the liquefying pipeline, a cooling mechanism capable of liquefying carbon dioxide is arranged in the liquefying cavity, a carbon dioxide inlet pipe is arranged at one end of the liquefying pipeline and communicates with the liquefying cavity, and a liquid passing opening is formed in the face, corresponding to the liquefying pipeline, of the workbench. A liquid collecting funnel is arranged at the bottom of the liquid passing opening in the workbench and communicates with the liquefaction cavity through the two sets of liquid passing openings, and a liquid outlet assembly capable of pressing the sealing plug downwards is arranged at the bottom of the liquid collecting funnel; and the sealing tank can be automatically sealed, and the problem that a traditional sealing device needs manual sealing of a collecting tank is solved.

A boil-off gas treatment system includes: a first compressor receiving boil-off gas generated from liquefied gas stored in a storage tank of a ship and compressing the boil-off gas; a second compressor compressing boil-off gas received from the storage tank; a heat exchanger cooling the boil-off gas compressed by the first compressor or the second compressor; and a refrigerant circulation line for circulating a refrigerant to the heat exchanger. The first compressor is a multistage compressor including a plurality of compressors and compressing the boil-off gas to a fuel supply pressure required for a propulsion engine. The second compressor compresses the boil-off gas to a fuel supply pressure required for a power generation engine which is lower than the propulsion engine. The boil-off gas compressed by part of the first compressor is supplied to the heat exchanger to be cooled or is supplied to the power generation engine.

The filling limiting mechanism comprises a liquid collecting pipe, a detection pipe and a flexible compensation pipe, the liquid collecting pipe is used for being communicated with an inner container of the copious cooling liquid storage tank in a sealed mode, so that the inner end of the liquid collecting pipe is located in the inner container of the copious cooling liquid storage tank, and the detection pipe is used for detecting the filling of the copious cooling liquid storage tank. The outer end of the interlayer is positioned between the inner container and the outer container of the cryogenic liquid storage tank; the detection pipe is arranged outside the outer container of the cryogenic liquid storage tank, one end of the detection pipe is closed and detachably connected with a temperature detector, and the other end of the detection pipe is in closed connection with the outer container of the cryogenic liquid storage tank; and the other end of the flexible compensation pipe penetrates through the outer container of the cryogenic liquid storage tank and is hermetically communicated with one end, far away from the temperature detector, of the detection pipe. The problem that in the filling process of the cryogenic liquid storage tank, the liquid level detection error is large can be solved.

The utility model discloses an alkane storage tank precooling system which comprises a normal-temperature pressure storage tank and a low-temperature normal-pressure storage tank which are communicated through a conveying pipeline, the conveying pipeline leads to the low-temperature normal-pressure storage tank from the normal-temperature pressure storage tank, a decompression flash evaporation device is arranged on the conveying pipeline, and a tank inlet pipeline in the conveying pipeline after decompression is a precooling pipeline. A spray head is arranged at an output port of the pre-cooling pipeline and is arranged above an inner tank of the low-temperature normal-pressure storage tank. Low-temperature propane / low-temperature butane gas is not received from the transport ship to carry out gas-phase precooling on the low-temperature propane / butane normal-pressure storage tank, low-temperature liquid-phase propane / low-temperature liquid-phase butane is not output by a cabin sweeping pump to carry out liquid-phase precooling on the low-temperature propane / butane normal-pressure storage tank, and precooling of the low-temperature propane / butane normal-pressure storage tank is completed before the overseas transport ship berths. The pre-cooling process is not influenced by weather, tide and other environmental factors, and operation is more stable; the outer wheel parking cost is not generated, wharfs are not involved in the pre-cooling process, dispatching and operation are limited to a reservoir area, and if emergencies are small in wave range, processing is more timely.

The invention provides a liquid hydrogen system and a vehicle, and relates to the technical field of liquid hydrogen application. The liquid hydrogen system comprises a liquid hydrogen storage device used for storing hydrogen, the hydrogen comprises liquid-phase hydrogen and gas-phase hydrogen, and the liquid hydrogen storage device is provided with a gas-phase port and a liquid-phase port; the reliquefaction device is used for liquefying gas-phase hydrogen into liquid-phase hydrogen, the gas-phase opening is communicated with a gas inlet of the reliquefaction device, and a liquid outlet of the reliquefaction device is communicated with the liquid-phase opening; an input port of the power generation device communicates with the liquid hydrogen storage device, and the power generation device is used for generating power through hydrogen; the battery assembly is connected to the power generation device and used for storing the electric energy generated by the power generation device; the reliquefaction device, the power generation device and the battery assembly are all in communication connection with the control assembly, and the control assembly is used for controlling operation of the reliquefaction device, the power generation device and the battery assembly. The liquid hydrogen system can prolong the storage time of liquid hydrogen, reduce the loss of hydrogen energy and improve the utilization rate of the hydrogen energy.

A system and method for high rate liquid hydrogen tank filling is provided. The flexible, pump-based filling system can achieve high fill rate of liquid hydrogen in excess of 100 kg per minute and accommodate maximum delivery pressures. The present system and method further includes recovery and re-liquefaction of displaced and flash generated tank vapors.

The integrated hybrid system for managing the production, flow, consumption and storage of energy is characterised in that it comprises a cryogenic liquefied air energy storage (7), to which, either upstream and / or downstream of the compressor, an system for transporting oxygen (D) obtained from the electrolyzer (11) is connected, while an system supplying heat (B) obtained during combustion of gas in the trigeneration unit (9) is incorporated in the liquid air and / or oxygen expansion station of the cryogenic liquid air energy storage (LAES) (7), wherein all energy processing and storage units are incorporated in the control and supervision system, collecting data in real time, monitoring the production, consumption and demand for electrical energy, and intelligently controlling energy flow between generation sources, powered devices and energy storage units.

A coupling system for liquefied natural gas re-gasification and liquid air energy storage. The coupling system comprises a liquefied natural gas re-gasification system and a liquid air energy storage system. The liquefied natural gas re-gasification system comprises: a heat exchanger-natural gas (HX-NG) connected to a liquefied natural gas re-gasification path. The liquid air energy storage system comprises: a heat exchanger-charge (HX-C) connected to a main gas liquefaction path, a heat exchanger-discharge (HX-DC) connected to a liquefied main gas re-gasification path, and a cold dewar (CD), wherein a first heat exchange cycle where cold energy exchange is performed with a first heat exchange medium is formed between the heat exchanger-natural gas and the heat exchanger-charge; and a second heat exchange cycle where cold energy exchange is performed with a second heat exchange medium is formed among the heat exchanger-charge, the cold dewar and the heat exchanger-discharge. In the first heat exchange cycle, a hot end of the heat exchanger-natural gas is connected to a hot end of the heat exchanger-charge, and a cold end of the heat exchanger-natural gas is connected to a cold end of the heat exchanger-charge; and in the second heat exchange cycle, hot ends of the heat exchanger-charge, the cold dewar and the heat exchanger-discharge are connected, and cold ends of the heat exchanger-charge, the cold dewar and the heat exchanger-discharge are connected. In the present invention, regardless of whether the liquid air energy storage system is in a charging working state, a standing working state or a discharging working state, effective coupling utilization of cold energy and heat energy between the liquid air energy storage system and the liquefied natural gas re-gasification system can be realized, improving the effective coupling utilization rate of cold energy and heat energy between the systems.

The invention discloses a hydrogen liquefaction, liquid hydrogen storage and transportation and LNG receiving station integrated design system and method based on cold energy utilization, and belongs to the technical field of hydrogen liquefaction treatment systems. The system comprises an LNG receiving station, a hydrogen liquefaction treatment system and a liquid hydrogen storage and transportation system. The LNG receiving station comprises an LNG storage tank and a BOG condensation unit, and the BOG condensation unit condenses NG generated in the LNG storage tank into LNG through low-temperature hydrogen generated by the liquid hydrogen storage and transportation system. The hydrogen liquefaction treatment system precools hydrogen through LNG gasification cold energy in the LNG receiving station and the nitrogen refrigeration cycle system, and the nitrogen refrigeration cycle system cools nitrogen through the LNG gasification cold energy. According to the system and method, a large amount of LNG gasification cold energy in the LNG receiving station is fully utilized to achieve hydrogen liquefaction, meanwhile, low-temperature hydrogen generated in the liquid hydrogen storage and transportation system is fully utilized to achieve NG condensation, and therefore LNG and hydrogen energy industry chain optimization matching is achieved, and the investment and operation cost of the LNG receiving station, hydrogen liquefaction and liquid hydrogen storage and transportation factories is reduced.

A system for supplying liquefied hydrogen includes: liquefied hydrogen storage tanks each comprising a temperature control unit controlling an internal temperature of the liquefied hydrogen storage tank to maintain an inside of the liquefied hydrogen storage tank at a low pressure; pressure tanks receiving and storing liquefied hydrogen to be supplied to a liquefied hydrogen demand site from the liquefied hydrogen storage tanks, the pressure tanks having a smaller capacity than the liquefied hydrogen storage tanks and maintained at a higher pressure than the liquefied hydrogen storage tanks; a liquefied hydrogen supply line through which liquefied hydrogen is transferred from the pressure tanks to the liquefied hydrogen demand site; and a compressor compressing boil-off hydrogen gas generated in the liquefied hydrogen storage tanks and supplying the compressed boil-off hydrogen gas to the pressure tanks to generate a pressure required for delivery.

A device (101) for transferring liquid helium (14) into an application cryostat (102), comprising: a storage dewar (1); a transfer line (9) comprising a first transfer line end (9a) in the storage dewar (1) and a second transfer line end (9b) for insertion into an application cryostat (102); a device (31) for generating a pressure difference between the storage dewar (1) and the application cryostat (102); is characterized by: a condensation heat exchanger (17) for condensing helium gas (12) to liquid helium (11), for insertion into the application cryostat (102); a cryocooler (29) for cooling the condensation heat exchanger (17); and a control device (8) with a measuring input (18a) for a pressure sensor (18) for measuring the gas pressure in the application cryostat (102) and a control output. (31a) for the device (31) for generating a pressure difference, wherein the control device (8) is programmed toThe device (31) is controlled to generate a pressure difference such that the volume of liquid helium (14) transferred per unit time through the transfer line (9) is approximately equal to the volume change of the helium that condenses from helium gas (12) to liquid helium (11) per unit time at the condensation heat exchanger (17). The device minimizes helium losses during the transfer of liquid helium in a simple manner.

Manual and automated methods of pre-charging an empty or partially empty insulated container with C02 snow are provided. A first location such as a charging location charges C02 liquid into a container to create a pre-charged container with C02 snow. The charging location prepares the pre-charged container for delivery to a second location, either by itself, or through a third party. The second location may be a clinical site, which upon receipt of the pre-charged container, loads a perishable item such as a biological sample into the pre-charged container. A user receives the pre-charged container with perishable item and removes the perishable item from the pre-charger container for testing (e.g., biological testing). Depending on the level of depletion of the C02 snow in the pre-charged container, the user returns the depleted container to the first location or the intermediate location.

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.

A cryogenic fluid dispensing system having a tank that holds cryogenic liquid and manages heat within the system is disclosed. The cryogenic liquid dispensing system optionally includes a basin and / or a heat exchanger within the tank for managing heat within the system.

A carbonation machine may include a carbonation head, a holder that is configured to hold a gas canister, the holder comprising a connector with a socket configured to enable linear insertion of a valve of the canister into the socket, the socket including a seal with at least one lateral opening to enable fluidic flow between one or more laterally oriented ports of the valve and a conduit of the holder while preventing leakage of gas from the fluidic flow, and a holding mechanism configured to hold a lateral projection from the canister after insertion of the valve into the socket such that the valve remains in the socket, and an activation mechanism configured to operate the valve to release the gas from the canister when inserted into the socket so as to enable the gas to flow via the conduit to the carbonation head.

To measure liquefied carbon dioxide discharged from a storage unit with higher precision.SOLUTION: A carbon dioxide recovery system includes: a carbon dioxide recovery unit for recovering gaseous carbon dioxide from carbon dioxide-containing gas; a liquefying unit for liquefying gaseous carbon dioxide recovered by the carbon dioxide recovery unit; a plurality of storage units capable of storing the liquefied carbon dioxide liquefied by the liquefying unit; a switching unit for feeding the liquefied carbon dioxide liquefied by the liquefying unit when some of the plurality of storage units are discharging the liquefied carbon dioxide to other storage units not discharging the liquefied carbon dioxide among the plurality of storage units; and a measuring unit for measuring the liquefied carbon dioxide discharged from the storage units.SELECTED DRAWING: Figure 2