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1854results about "Pressure vessels" patented technology

Self-locking plug

A fluid end, includes a plunger reciprocating within a first bore, the plunger increasing a pressure of a fluid within a pressure chamber. The fluid end also includes a second bore. The fluid end further includes a plug assembly associated with the second bore. The plug assembly includes a plug body positioned within the second bore. The plug assembly also includes a lock ring positioned, at least in part, within the second bore, the lock ring positioned to be driven radially outward responsive to a longitudinal force applied to the plug body.
Owner:VULCAN IND HOLDINGS LLC

Fluid storage and supply device, and vehicle and method comprising such a device

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.
Owner:LAIR LIQUIDE SA POUR LETUDE & LEXPLOITATION DES PROCEDES GEORGES CLAUDE

Storage tank pressurization control method and system based on LNG filling station fuzzy self-adaptive PID control

The invention discloses a storage tank pressurization control method and system based on LNG gas station fuzzy self-adaptive PID control, and aims to solve the technical problems that a traditional pressurization control method of an LNG storage tank is low in control precision, poor in stability and rapid in equipment abrasion. According to the control method, dynamic compensation for the target pressure is introduced, so that the system can aim at a more accurate control target in the initial stage, the steady-state control deviation is reduced, and the control precision is improved. And static pressure head change disturbance caused by liquid level change is overcome through dynamic compensation, the adjusting burden of the controller is reduced, the controller can focus on processing other dynamic disturbance, and therefore the control process is more stable, and overshoot is smaller. Through the design of a dynamic compensation mechanism and a special fuzzy rule base, the system can automatically adapt to various complex working conditions, and fast, stable and overshoot-free pressure control is always kept. Therefore, frequent and large-amplitude action and surge phenomena of the valve are avoided, and the energy consumption of an executing mechanism is reduced.
Owner:CENSTAR SCI & TECH CORP LTD

Standby power supply system

The invention discloses a standby power supply system, and relates to the technical field of transformer substation power supply, a hydrogen production module is used for producing hydrogen by using commercial power or renewable power and then storing the hydrogen in a high-pressure gas storage tank of a hydrogen storage module, and the hydrogen storage module is provided with a one-way valve for the hydrogen to pass through in one way and a gas compressor for compressing the hydrogen to realize hydrogen conveying; after hydrogen stored in the hydrogen storage module is subjected to power generation through a fuel cell through the power generation module, the hydrogen is input into a storage battery pack of an uninterruptible power supply system of the transformer substation, and in the whole process, the control module detects the state of a main power supply and controls starting and stopping of the power generation module. The hydrogen production rate of the hydrogen production module and the hydrogen storage pressure of the hydrogen storage module are controlled, only water is generated in the power generation process, harmful emission is avoided, direct current generated by the fuel cell is directly matched with a UPS storage battery direct current bus, the response speed is high, conversion loss is reduced, the energy utilization efficiency is improved, the system automation degree is high, and the operation and maintenance cost is low.
Owner:SUPER HIGH VOLTAGE BRANCH OF STATE GRID JIBEI ELECTRIC POWER CO LTD +1

Corrugated plate of liquefied gas storage tank and liquefied gas storage tank

The present application provides a corrugated plate of a liquefied gas storage tank and a liquefied gas storage tank. The corrugated plate comprises a corrugated plate body; a transverse corrugation formed on the corrugated plate body; a longitudinal corrugation formed on the corrugated plate body and comprising a first longitudinal corrugation and a second longitudinal corrugation respectively located on two opposite sides of the transverse corrugation; reinforcing ribs respectively formed on the transverse corrugation, the first longitudinal corrugation, and the second longitudinal corrugation; and an intersection portion formed at the intersection of the transverse corrugation, the first longitudinal corrugation, and the second longitudinal corrugation. The corrugated plate of the present application has high overall strength and stability. In addition, the reinforcing ribs formed on the corrugations increase the surface area of the corrugated plate in contact with liquefied gas and increase the local cross-sectional area of the corrugations, thereby further enhancing the strength and rigidity of the corrugations and the corrugated plate.
Owner:CNOOC GAS & POWER GRP

Underground hydrogen storage system

PendingCN121611844AContainer filling methodsPipeline systemsMulti inputUnderground hydrogen storage
The invention relates to the technical field of hydrogen energy storage, in particular to an underground hydrogen storage system, which is characterized in that a hydrogen storage sensing module and a processing module are integrated in the system, a multi-input multi-output monitoring channel is constructed by using array type electrode nodes, and the processing module constructs a dual-drive prediction model through superposition of a physical state space and a neural network to obtain reference hybrid prediction output; generating a virtual sample set by using random sampling to construct a dynamic random tolerance envelope band; and finally, leakage is judged according to the permeability of the envelope band according to the actually measured signal. According to the invention, the problem of high false alarm rate of the system due to the fact that in-pipe nonlinear background triboelectric charge noise covers tiny leakage characteristics under a fluctuating power supply charging working condition is effectively solved; millisecond-level self-adaptive accurate diagnosis of the air tightness of the pipeline in a complex dynamic environment is realized, and the detection capability of weak leakage signals is remarkably improved while electromagnetic interference is filtered out.
Owner:CHENGDU DINGSHENG TECH CO LTD

Functional gradient type nano composite glass fiber hydrogen storage bottle and preparation and monitoring method thereof

The invention discloses a functional gradient type nano-composite glass fiber hydrogen storage bottle and a preparation and monitoring method thereof, and relates to the technical field of high-pressure gas storage equipment. The functional gradient type nano-composite glass fiber hydrogen storage cylinder comprises a modified polymer liner, a hydrogen storage functional layer, a gradient enhancement layer, a self-repairing protective layer and an embedded monitoring unit embedded in the structure which are sequentially arranged from inside to outside, so that the integration of structure enhancement, active hydrogen storage, damage self-repairing and intelligent monitoring is realized; the gradient enhancement layer optimizes material distribution according to stress distribution, and the overall mechanical efficiency and the lightweight level are improved; the hydrogen storage functional layer endows the bottle body structure with an auxiliary hydrogen storage capability; through cooperation of the self-repairing protective layer and the embedded monitoring unit, active repairing and real-time sensing of micro-damage are achieved, the reliability and safety of the hydrogen storage bottle are improved, and the service life of the hydrogen storage bottle is prolonged.
Owner:HYDROGEN TECHNOLOGY (SHENZHEN) CO LTD

Storage unit, control method, and system for carbon dioxide gas-liquid-phase-change energy storage system

A storage unit for an energy storage system is provided with an energy storage container for storing gaseous carbon dioxide and liquid carbon dioxide, a condenser connected to the energy storage container and used for condensing gaseous carbon dioxide into liquid carbon dioxide and an energy-storage pressure-maintaining flow path forming a closed-loop connection with the energy storage container and the condenser; and in an energy storage stage of the energy storage system and in an interval time period of energy storage and energy release, gaseous carbon dioxide in the energy storage container can flow into the condenser via the energy-storage pressure-maintaining flow path, to be condensed into liquid carbon dioxide, and then flow back to the energy storage container, so as to stabilize, in the energy storage stage, the pressure of the energy storage container in a design pressure range.
Owner:EXA ENERGY TECH (SHENZHEN) CO LTD

A method for generating, storing and using hydrogen

Hydrogen is produced by electrolysis of water using electricity generated from a renewable energy source such as wind and / or solar radiation, compressed in a multistage compression system and consumed in at least one downstream process. Supply of hydrogen to the downstream process(es) fluctuates with demand and / or the availability of the renewable energy source. In order to accommodate such fluctuations, excess hydrogen is stored during periods when production of hydrogen exceeds that required by the downstream process(es) so that, during periods when demand exceeds production, hydrogen is removed from storage and, after suitable pressure reduction, fed to the downstream process(es) via a stage of the multistage compression system.
Owner:AIR PROD & CHEM INC

Subsea storage of a water miscible storage fluid

The present invention relates to a subsea storage system for storing a water miscible storage fluid and methods related thereto.
Owner:GRANT PRIDECO LP

Quick fill device, system, and method for a fuel valve

The present disclosure relates to a quick fill device for use with a valve assembly, and related methods of filling a pressure vessel. A valve assembly that can be secured to a pressure vessel includes a vessel, a fill valve, and an overfill valve. A preferred example of the device includes a body, a valve trigger pin, a vent trigger pin, and a handle. A valve engagement end of the body can be releasably secured within the vessel. At this point, moving the handle to an open position causes the valve trigger pin to force the fill valve to an open configuration, and causes the vent trigger pin to force the overfill valve to a fluid venting configuration. A rigid fill tube is in fluid supply communication with a fuel supply port of the body. The fill tube and the handle can be elongate, and extend in a common direction.
Owner:YSN IMPORTS INC

Device and method for reducing exhaust loss by using pressure of liquid hydrogen storage tank

The invention provides a device and a method for reducing exhaust loss by using the pressure of a liquid hydrogen storage tank, and relates to the technical field of liquid hydrogen storage and transportation safety. The device comprises an adsorption storage assembly, a desorption recovery assembly and an adsorption enhancement assembly which are arranged in a gas pillow of the liquid hydrogen storage tank. The adsorption and storage assembly is communicated with the air pillow through a one-way mechanical low-temperature valve, is internally provided with a solid adsorption material and a vacuum heat insulation cylinder, and is used for adsorbing and storing evaporation gas and reducing the tank pressure when the tank pressure is increased; the adsorption enhancing assembly comprises a low-temperature hydrogen regulating valve and a low-temperature heat exchanger, and the throttling effect of high-pressure hydrogen in the tank is used for refrigerating an adsorption material, so that the adsorption capacity of the adsorption material is improved; the desorption recovery assembly heats an adsorption material through an intermediate heater, and controllable release of hydrogen is achieved. According to the invention, the active management of the pressure of the liquid hydrogen storage tank and the efficient recovery of the boil-off gas are realized, the exhaust period is obviously prolonged, the hydrogen loss is reduced, and the storage and transportation economy and safety are improved.
Owner:CHANGZHOU RES INST OF SOUTHEAST UNIV +1

Gas supply device and gas supply method

A gas supply device of the disclosure includes: a liquefied gas vessel in which liquefied gas is stored; an injector configured to discharge the liquefied gas sucked from the liquefied gas vessel; a first liquefied gas supply path through which the liquefied gas is selectively allowed to flow from the liquefied gas vessel toward the injector; a gas supply path through which gas is selectively supplied to a gas utilization unit, the gas being obtained by vaporizing the liquefied gas flowing in from the injector during flowing through the gas supply path; and a drive fluid supply path through which the gas obtained in the gas supply path is selectively supplied as a drive fluid to the injector.
Owner:MITSUBISHI HEAVY IND LTD

Operation method and system of liquid-gas dual-mode liquid hydrogen refueling station

The invention discloses an operation method and system of a liquid-gas dual-mode liquid hydrogen refueling station, the system realizes the switching of a refueling route through a plurality of liquid hydrogen control valves and a control switch of a gas hydrogen control valve, liquid hydrogen output from a liquid hydrogen storage tank is primarily pressurized through a first liquid hydrogen booster pump, and in the liquid hydrogen refueling route, the liquid hydrogen output from the liquid hydrogen storage tank is pressurized through a second liquid hydrogen booster pump. The liquid hydrogen pressurized for the first time is in a supercooled state and is not easy to evaporate, the generation of BOG is greatly inhibited, the leakage amount of the liquid hydrogen in a liquid-liquid filling process can be reduced, the filling efficiency is improved, in a high-pressure hydrogen filling route, the liquid hydrogen in a supercritical state can also effectively reduce the cavitation problem of a pump during secondary pressurization, waste of liquid hydrogen cold energy is reduced, and the production cost is reduced. High volume efficiency can be effectively guaranteed, and durability of equipment and efficient operation of the hydrogen refueling station are guaranteed.
Owner:TONGJI UNIV

Pressurizing storage tank and pressure filling tank truck

The invention provides a pressurization storage tank and a pressure filling tank truck with the pressurization storage tank. The pressurization storage tank comprises a tank body, a liquid level detection device, a pressurization pipeline, a pressurizer and a liquid outlet valve. The liquid level detection device is used for detecting liquid level information in the tank body; one end of each pressurizing pipeline communicates with the bottom of an inner cavity of the tank body, the other end of each pressurizing pipeline communicates with the top of the inner cavity of the tank body, and the multiple pressurizing pipelines are arranged in parallel; the superchargers are communicated with the supercharging pipelines, and each supercharging pipeline is provided with one supercharger; the liquid outlet valves are communicated with the pressurizing pipelines and located on the upstream of the pressurizer, and each pressurizing pipeline is provided with one liquid outlet valve. When a worker uses the pressurizing storage tank to unload liquid, the superchargers with different numbers or different powers can be started and stopped according to the liquid level information detected by the liquid level detection device, so that the self-adaptive matching between the pressurizing capacity and the size of a gas phase space in the tank body is realized, and the whole liquid unloading process is more stable and efficient.
Owner:CIMC JINGMEN HONGTU SPECIAL AIRCRAFT MFG +2

Method for operating and / or fueling a compressed gas supply system and electronic device

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).
Owner:ROBERT BOSCH GMBH

Sealing device

This invention relates to a fluid sealing device comprising a sealing member comprising a first surface and an opposite second surface. A first region of the first surface for forming a first seal about an aperture of a process component containing a fluid, and an inner region of the first surface to be exposed to the fluid via the process component aperture. A restraining member providing a support surface facing the second surface, a perimeter portion of the restraining member interfacing with a first region of the second surface, the first regions of the first and second surfaces corresponding with a first region of the sealing member. An inner region of the second surface spaced from the support surface to form a cavity between the inner region of the second surface and the supporting surface at least in an unpressurised condition. The inner regions of the first and second surfaces corresponding with an inner region of the sealing member, the inner region of the sealing member moveable towards and away from the support surface under action of a pressure of the fluid on the inner region of the first surface to provide an indication of the pressure.
Owner:LAKE PROD

Hydrogen supply system

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.
Owner:TOYOTA JIDOSHA KK

Inflation assembly for protective clothing

The utility model discloses an inflation assembly for protective clothing. The inflation assembly comprises a bottle body and a trigger piece movably installed on the bottle body. A membrane is arranged in the bottle body, and the trigger piece comprises a puncture needle used for puncturing the membrane; after the bottle body is connected with the trigger piece, a cavity is formed between the bottle body and the trigger piece, and high-pressure gas in the bottle body is released into the protective clothing through gas holes formed in the cavity. In conclusion, due to the fact that the bottle body is movably connected with the triggering piece, the bottle body and the triggering piece are easy and convenient to assemble, and after the triggering piece is fixed to the protective clothing, the bottle body can be replaced rapidly; particularly, the cavity is formed after the bottle body and the trigger piece are assembled, so that after the diaphragm is punctured and high-pressure gas enters the cavity, the flow speed of the gas is reduced by utilizing the cavity, and noise generated when the gas flows out can be reduced. Based on the structure, the utility model has the advantages of simple structure and convenience in replacement, thereby being worthy of popularization and application.
Owner:ZHENGZHOU MIXI ENVIRONMENTAL TECHNOLOGY CO LTD

Pressure container with adjustable pressure

The utility model relates to the technical field of pressure containers, and particularly discloses a pressure-adjustable pressure container which comprises a tank body, a connecting end is fixedly connected to the upper side of the tank body, an air hole is formed in one end of the connecting end, a feeding port is fixedly connected to the end, close to the connecting end, of the tank body, and a regulation and control assembly is arranged at the upper end of the connecting end. The regulation and control assembly comprises a cover plate arranged on the upper side of the connecting end, the lower side of the cover plate is fixedly connected with a first sealing gasket, the lower side of the first sealing gasket is attached to the connecting end, the lower end of the cover plate is fixedly connected with a connecting plate, and a fixing bolt is in threaded engagement with the interior of the connecting plate; the inner side of the upper end of the cover plate is fixedly connected with a motor, an output shaft of the motor is fixedly connected with a first gear, one end of the first gear is in gear engagement with a second gear, the lower end of the second gear is rotationally connected to the tank body, automatic regulation and control can be achieved through the regulation and control assembly, the regulation and control index is more accurate, manual regulation and control by workers are not needed, and then regulation and control convenience is improved.
Owner:史朝松

Leakage detection device for alcohol hydrogen filling station

The utility model relates to the technical field of alcohol hydrogen leakage detection of a filling station, in particular to a leakage detection device of an alcohol hydrogen filling station. The alcohol hydrogen filling station leakage detection device comprises a hydrogen storage tank, the hydrogen storage tank is provided with a butt joint pipe used for the hydrogen storage tank to store or discharge alcohol hydrogen, and the top of the hydrogen storage tank is fixedly provided with a protective cover used for covering the butt joint pipe; a detection cylinder is installed on the top of the protective cover, and a monitoring assembly is arranged in the detection cylinder. According to the leakage detection device for the alcohol hydrogen filling station, the monitoring assembly is combined with the piston driven by air pressure and the contact piece type switch, the audible and visual alarm is triggered through the abutting column, the sensitivity is high, the anti-interference capacity is high, meanwhile, the spring and the limiting ring act synergistically, it is ensured that the piston is reset in the non-leakage state, and the leakage detection efficiency is improved. Meanwhile, the pressure relief hole can balance the internal pressure of the detection cylinder, the stability of the system is improved, leaked alcohol hydrogen fuel can be directionally conveyed to a standby storage tank through the design of the dump pipe and the control valve, and fuel diffusion and secondary pollution are avoided.
Owner:TIANJIN SHENGYING REMOTE ENERGY TECHNOLOGY CO LTD

Device capable of simultaneously treating different medium gas cylinders

The utility model belongs to a device capable of simultaneously processing different medium gas cylinders. Comprising a first gas cylinder box chamber used for treating a gas cylinder with fluorine-containing gas and mixed gas as treatment media, and a second gas cylinder box chamber used for treating corrosive gas and conventional standard gas. The first gas cylinder box chamber comprises a fluorine-containing gas cylinder cavity for placing a fluorine-containing gas cylinder and a mixed gas cylinder cavity for placing a mixed gas cylinder; the second gas cylinder box chamber comprises a cavity for placing a corrosive gas cylinder, a cavity for placing a small conventional standard gas cylinder and a cavity for placing a large conventional standard gas cylinder; independent heating lifting units and valve rows are arranged in cavities of the gas cylinders; the gas balancing unit, the emptying unit and the vacuumizing unit are respectively connected with the valve row; the gas cylinder processing device has the characteristics of processing gas cylinders of different specifications, ensuring the gas cylinder processing precision and quality and realizing simple and convenient operation.
Owner:HENAN XINLIANXIN SHENLENG ENERGY

Gas collection mechanism for gas-liquid separation device

The utility model relates to the field of gas-liquid separation appliances, and discloses a gas collection mechanism for a gas-liquid separation device, which comprises a storage device assembly, a gas bottle cap structure and a protection assembly, a gas bottle is arranged outside the storage device assembly, a bottle opening is arranged at the top of the gas bottle, and a label frame is arranged on one side outside the bottle opening; a bottle cap is arranged outside the gas bottle cap structure, a rubber plug is installed at the bottom of the bottle cap, two sets of through holes are formed in the top of the bottle cap, sealing sleeves are installed in the through holes, gas pipe assemblies are arranged in the sealing sleeves, and a sealing cover is installed outside one side of each gas pipe assembly. The protection assembly comprises a protection sleeve, a damping spring, a connecting block body and a fixing ring. According to the gas collection device, the protection assembly is arranged to improve protection of the outside of the gas collection mechanism, and the label frame is arranged to facilitate classified storage of gas and quick search during use.
Owner:DONGGUAN HEXIN FILTER CO LTD

Method for operating a tank system and control unit

The invention relates to a method for operating a mobile tank system (1) for a fuel gas, in particular for hydrogen or natural gas, comprising at least one pressurized gas container (2) in which the fuel gas is stored under pressure, and a control unit (3) with the aid of which sensor data from at least one sensor (4) installed in the tank system (1) are read and evaluated. According to the invention, in phases in which the tank system (1) is out of operation, the control unit (3) is temporarily activated via an implemented wake-up function and used to carry out a leakage test.
Owner:ROBERT BOSCH GMBH

Gas supply system

A tank of a gas supply system is configured to be detachably attached to a gas consumption device. A control device is configured to, when the tank is detached, close an open / close valve to stop supply of gas from the tank, stop consumption of gas by the gas consumption device after the gas in the supply channel is consumed, and perform computation to permit detachment of the tank after confirming that pressure acquired from a pressure sensor is not rising to a predetermined level or higher.
Owner:TOYOTA JIDOSHA KK

Gas supply systems including mobile robots

To provide an automating gas supply device with a power supply source positioned outside in order to achieve downsizing of a gas supply device.SOLUTION: A gas supply system includes: a cabinet inside of which a gas container is arranged; a fastening device that is movable with respect to the gas container and can be fastened to a valve of the gas container while aligned with the valve; a mobile robot device that is separably coupled to the fastening device and moves the fastening device; a three-dimensional vision camera that collects images; and a processor that controls operation of the mobile robot device based on the images collected by the three-dimensional vision camera.SELECTED DRAWING: Figure 2
Owner:KC LTD

Pressurizing system

The pressurization system comprises a liquid outlet pipeline, a vaporizer, a buffer tank and a heat exchange loop, the liquid outlet pipeline is communicated to a low-temperature container, the vaporizer and the buffer tank are both communicated to the liquid outlet pipeline, and the buffer tank is located on the downstream of the vaporizer, so that the buffer tank can store gaseous media heated and vaporized by the vaporizer. The heat exchange loop is communicated to the buffer tank and is communicated with a circulating pump and a heat exchange device, the circulating pump can drive a gaseous medium in the buffer tank to flow along the heat exchange loop, the heat exchange device is connected to the low-temperature container, and the gaseous medium can conduct heat exchange on the low-temperature container through the heat exchange device; the heat carried by the gaseous medium is transferred into the low-temperature container, and the liquid medium in the low-temperature container absorbs heat and is vaporized, so that the volume of the medium in the low-temperature container is increased, the pressure in the low-temperature container is improved, the low-temperature container can be quickly pressurized when being at a low liquid level, and liquid supply or gas supply of the low-temperature container is facilitated.
Owner:ZHANGJIAGANG CIMC SANCTUM CRYOGENIC EQUIP CO LTD +4

Normal-temperature storage and low-temperature C1-C4 liquefied hydrocarbon gasification system and method

The invention relates to the technical field of low-temperature liquefied hydrocarbon gasification, in particular to a system and method for normal-temperature storage and low-temperature C1-C4 liquefied hydrocarbon gasification. The system comprises a low-temperature liquefied hydrocarbon storage raw material tank, a low-temperature liquid booster pump, a liquefied hydrocarbon gasifier, a circulating air heater and a circulating fan which are sequentially connected through pipelines and necessary pipe fittings, and the circulating fan is connected with the liquefied hydrocarbon gasifier to form a low-temperature liquefied hydrocarbon gasification flow path and a circulating gas flow path. The low-temperature liquefied hydrocarbon gasification flow path is a flow path for heating and gasifying liquid hydrocarbon by the liquefied hydrocarbon gasifier to form gas hydrocarbon to an external production device; and the circulating gas flow path is a flow path through which circulating gas circulates between the liquefied hydrocarbon gasifier and the circulating air heater under the pressurization of the circulating fan. The system is safe, reliable, feasible in industrialization and stable in operation, the frosting problem of the air temperature type vaporizer can be effectively solved, the process is simple, and a heating medium is safe, environmentally friendly and easy to obtain.
Owner:BEIJING FLEMING TECH CO LTD +2

Method and system for storing hydrogen

A method for storing hydrogen in a plurality of subsea storages in a system. The system comprising an electrolyser source (100) for producing hydrogen at a source pressure; a downstream compressor (200) for compressing the hydrogen from the source pressure to a compressed higher pressure; and a plurality of storages (300) each for storing compressed hydrogen at the compressed higher pressure and each being subsea. The method comprising at least the steps of: producing hydrogen (1000) by the electrolyser source (100) at the source pressure; passing the hydrogen (2000) to the plurality of storages (300) through a bypass line (210) around the compressor (200); and storing the hydrogen (3000) in at least one of the plurality of storages (300) at a first pressure below the compressed higher pressure. A system for storing hydrogen in a plurality of subsea storages, the system comprising: an electrolyser source (100) for producing hydrogen at a source pressure; a downstream compressor (200) for compressing the hydrogen from the source pressure to a compressed higher pressure; a plurality of storages (300) each for storing compressed hydrogen at the compressed higher pressure and each being subsea; and a controller (400) for controlling the electrolyser source (100), the downstream compressor (200), and valves (310) to the plurality of storages (300). The controller (400) is configured for controlling the system in, at least, two alternative ways: A) passing the hydrogen, produced by the electrolyser source (100) at the source pressure, to the compressor (200), compressing the hydrogen by the compressor (200) to a compressed higher pressure, and passing the hydrogen, at the compressed higher pressure, from the compressor (200) to at least one of the plurality of subsea storages (300); and B) passing the hydrogen, produced by the electrolyser source (100) at the source pressure, to at least one of the plurality of storages (300), through a bypass line (210) around the compressor (200) at a first pressure below the compressed higher pressure.
Owner:FMC KONGSBERG SUBSEA AS

Automatic air supplement method and device for in-situ leaching uranium gas station

The application discloses an automatic air supplement method and device for an in-situ leaching uranium gas station and belongs to the technical field of in-situ leaching uranium. The automatic air supplement method comprises the following steps: according to the pressure of a gaseous gas sample storage tank and the injection pressure, automatically controlling the air supplement process of the gaseous gas sample storage tank, so that the pressure of the gaseous gas sample storage tank is greater than the injection pressure; and according to the injection pressure and the liquid injection pressure, automatically controlling the injection process, so that the injection pressure is greater than the liquid injection pressure. Through real-time detection of the pressure of each part of the in-situ leaching uranium gas station, the embodiment of the application realizes automatic and accurate regulation and control of the carbon dioxide system of the in-situ leaching uranium gas station, improves the efficiency and saves manpower.
Owner:BEIJING RESEARCH INSTITUTE OF CHEMICAL ENGINEERING AND METALLURGY