35results about "Container filling without pressure" patented technology

The utility model discloses a kind of liquid chlorine filling anti-leakage intelligent connecting devices, including liquid chlorine storage tank, the top of the liquid chlorine storage tank is equipped with connecting pipe, fixed ring is sleeved on the connecting pipe, the connecting pipe is equipped with cover plate, locking mechanism is installed on the side of the cover plate, filling mechanism is installed on the cover plate, first locking sleeve is sleeved on the filling mechanism, second locking sleeve is installed in the first locking sleeve, the second locking sleeve is fixed with feed pipe. The utility model is through the buckle type design of locking mechanism and fixed ring, realize the even locking and quick disassembly of cover plate and connecting pipe, effectively avoid the uneven stress and wear problem of traditional sealing structure;Filling mechanism is matched with double locking sleeve and shut-off valve, forms multilayer sealing system, in combination with the sealing seat and sealing ring of rubber material, significantly improve the anti-leakage performance under high pressure.

This invention discloses a pressure control device, method, and system for the coexistence of different types of full-containment tanks. It includes: multiple full-containment tanks, each equipped with a first pressure sensor, and each full-containment tank connected to an input pipe via a valve group; each full-containment tank is connected to a flare and an output pipe, with a first control valve between the flare and the full-containment tank; the first control valve and valve group of each full-containment tank are respectively connected to a controller, which controls the opening and closing of the first control valve and valve group; two full-containment tanks with different design pressures share a single output pipe, and a pressure protection system is installed on the output pipe between the two full-containment tanks. The pressure protection system includes at least one first shut-off valve and a second pressure sensor connected to the controller; in response to a trigger signal from the second pressure sensor, the controller controls the opening and closing of the first shut-off valve. This allows for the simultaneous operation of full-containment tanks with different design pressures while ensuring the safe and stable operation of the station.

Leak-proof and thermally insulating tank for the storage of a liquefied gas. The invention relates to a tank, the tank comprising a tank wall (100) including a sealing structure for hermetically sealing a space between the sealing membrane and the load-bearing wall (1000), the sealing structure comprising a first metal structure (6) and a second metal structure (9); the first metal structure comprising a first height (61) and a first base (62); the second metal structure comprising a second height (91) and a second base (92), the sealing membrane comprising corrugations and flat parts situated between the corrugations, the flat parts of the sealing membrane being hermetically fixed to the second base (92);the sealing membrane comprising caps (40) fixed in a watertight manner to the longitudinal ends of the longitudinal corrugations and to the second base (92) to close said longitudinal ends. Figure for the abbreviation: 6;

The application discloses an electronic-grade trichlorosilane automatic filling system and an automatic filling method thereof, wherein the system comprises a high-purity buffer tank, a filter, a vacuum pump, an argon purifier, a residual liquid recovery tank, an online analysis cabin, a filling pipeline, a mass flowmeter, a ground scale, a PLC control system, an HCl alarm, an emergency shut-off valve and a remote signal transmission to a DCS control system, and the method comprises the following steps: filling tank pretreatment: performing vacuumizing, 9N argon pressure charging and pressure releasing on the filling tank, and detecting H2O and O2 at the end point, wherein the cycle number is n times, H2O is less than or equal to 10 ppm, and O2 is less than or equal to 10 ppm; two-stage filling: the PLC performs automatic filling according to the set weight and high / low speed rate, the ground scale is real-time returned, the mass flowmeter or the weight is mutually checked at the end point, and the filling valve is immediately closed when the target value is reached; and the application can realize automatic filling, online monitoring, one-key start and stop and remote monitoring, and the electronic-grade trichlorosilane automatic filling system and the automatic filling method thereof are batch traceable.

This utility model relates to the field of liquid nitrogen production, specifically to a filling device for liquid nitrogen production, comprising a box body, a first support plate, a second support plate, a claw plate, a multi-aperture adjusting disc, a main gear, a clamping arc plate, a filling pipe, and a base. The box body has a gear groove, within which the multi-aperture adjusting disc and the main gear are installed. Gear teeth are installed on the outer ring of the multi-aperture adjusting disc, meshing with the main gear. A filling pipe is mounted on the box body. The first and second support plates are installed on the lower side of the box body. A claw plate is installed at the right end of the first and second support plates, and a clamping arc plate is installed at the side end of the claw plate. A base is installed at the bottom of the first and second support plates.

The utility model discloses a handheld trace liquid nitrogen transfer device, including storage cylinder, the top surface of storage cylinder is installed with module box, the bottom surface of storage cylinder is installed with conical barrel, the bottom surface fixed connection of conical barrel has screw pipe, the inner top wall of conical barrel is installed with micro two -way pump, one end communication of micro two -way pump has first pipe line, and first pipe line passes through the inside of conical barrel and is linked with storage cylinder, the other end communication of micro two -way pump has second pipe line, and micro flow sensor and micro electric valve are installed on second pipe line.

The application belongs to the technical field of low-temperature frozen liquid storage, and particularly relates to a liquid hydrogen storage system capable of realizing safe filling and a hydrogen filling method. The liquid hydrogen storage system capable of realizing safe filling comprises an inner tank and an outer tank, the inner tank is arranged in the outer tank, and further comprises a vent pipe, an upper liquid inlet pipe, a lower liquid inlet pipe, a buffer tank, a compressor, a temperature monitoring element and a liquid level pressure monitoring element. The inlet end of the vent pipe is connected to the upper portion of the inner tank, the inlet end of the vent pipe is in communication with the inner tank, and the outlet end of the vent pipe is in communication with the inner tank. The buffer tank and the compressor are connected to the vent pipe, the outlet of the buffer tank is connected to the inlet of the compressor. The upper liquid inlet pipe is connected to the upper portion of the inner tank and is in communication with the inner tank. The lower liquid inlet pipe is connected to the lower portion of the inner tank and is in communication with the inner tank. The temperature monitoring element and the liquid level pressure monitoring element are arranged on the outer wall of the inner tank. The application can avoid the flow directions of gaseous hydrogen and liquid hydrogen being opposite, is more conducive to discharging gaseous hydrogen, and improves the hydrogen filling efficiency.

A vent system includes a vent stack for venting a tank fluid from a fuel tank that is external to the vent stack, during fuelling of the fuel tank. The vent stack includes a conduit including a conduit inlet and a conduit outlet, the conduit outlet opening to atmosphere external to the conduit. The vent stack also includes an opening into the conduit between the conduit inlet and the conduit outlet. The opening is fluidically connected, or connectable, to the fuel tank so the tank fluid from the fuel tank flows through the opening to the conduit outlet, in use. The vent stack also includes a fluid mover operable to cause a mixer fluid receivable in the conduit inlet to flow through the conduit towards the conduit outlet, thereby to mix the mixer fluid with the tank fluid in the conduit, upstream of the conduit outlet.

A system and method for minimizing heat leakage to a liquid cryogenic pump incorporating a bayonet includes a male bayonet portion received within a female bayonet portion, each having a circular cross-section and comprising an outer tube surrounding an inner tube and a ring between them under vacuum, wherein the liquid cryogenic pump is contained within the male bayonet portion.

A cryogenic storage system comprising a cryogenic container for storing hydrogen, with an inner tank (1) and an outer container (2), wherein at least one cryopump (21) is arranged in the inner tank (1) of the cryogenic container, wherein the cryopump (21) is completely surrounded by cryogenic fluid during normal operation and / or wherein the drive of the cryopump (21) is configured to operate at cryogenic temperatures, wherein the cryopump (21) delivers liquid and / or gaseous hydrogen in one or more stages to a consumer (5) at a higher pressure than the pressure in the inner tank (1).

The application relates to a gas-liquid sealing device, belonging to the technical field of lithium battery diaphragm equipment manufacturing. The gas-liquid sealing groove comprises a groove body, a gas cylinder, a baffle and a waste gas treatment mechanism; dichloromethane and liquid water for sealing the dichloromethane are stored in the groove body; a diaphragm inlet is arranged on the upper side of one side of the groove body; a diaphragm outlet is arranged on the upper side of the other side of the groove body; the baffle is arranged on the end face of the diaphragm inlet; the output end of the gas cylinder is connected with the baffle; when the gas cylinder is extended, the baffle encloses the diaphragm inlet into a gap for diaphragm transmission; and the waste gas treatment mechanism is used for recycling the dichloromethane gas evaporated in the groove body. The scheme provided by the application can completely block the dichloromethane leakage through the triple protection mechanism of liquid sealing barrier, controllable gap and waste gas treatment, and ensures the safety of the production environment.

A diffuser head for a thermal energy storage tank. The diffuser head includes an inlet portion having an inlet with a first cross-sectional area measured perpendicular to a vertical axis of the diffuser, and an outlet portion having an outlet with a second cross- sectional area larger than the first cross-sectional area. The diffuser head includes a diffuser portion disposed between the inlet portion and the outlet portion. The diffuser portion has a diffuser cross-section substantially perpendicular to the vertical axis and the diffuser cross-section gradually increases from the inlet portion to the outlet portion. The diffuser head includes a plurality of baffles spanning the diffuser portion between the inlet and the outlet and substantially perpendicular to the vertical axis of the diffuser head, each baffle forming one or more slots configured to allow a fluid flow through the baffles.

The application provides a compressed gas and low-temperature liquefied gas cylinder automatic filling system and method, which comprises a storage tank and a main pipe unit, the storage tank is provided with a first sensor group for monitoring the state of gas in the storage tank, the main pipe is provided with a second sensor group for monitoring the state of gas in the main pipe, a low-pressure relief valve and a high-pressure relief valve; at least one filling station is connected with the main pipe, each filling station comprises a valve group panel and a weighing device, an electric control system comprises a PLC control unit; a man-machine interface unit is connected with the PLC control unit; the PLC control unit receives control formula parameters and sensor and weighing signals from the man-machine interface unit, automatically controls the opening and closing of each valve in the valve group panel and the relief valve on the main pipe, so as to execute the automatic filling process of the cylinder. The automatic control of the whole process of the cylinder is realized, and the safety, accuracy and traceability of the filling process are realized through parameterized formula management, multi-stage interlocking protection and data archiving.

A method of removing a dry-ice (solid CO2) blockage (32), which is affecting flow through one or more pipelines (16, 18, 19) in a liquified gas carrier (2). The liquified gas carrier (2) includes one or more liquefied CO2 cargo tanks (6A to 6C). The method comprises at least the steps of: extracting CO2 vapour from a liquefied CO2 source (6C); heating the CO2 vapour to provide a warmer CO2 vapour stream; creating two working CO2 vapour streams (48, 50) and routing each working CO2 vapour stream (48, 50) through the affected pipeline (16, 18, 19) towards the dry-ice blockage (32) simultaneously from both an upstream and downstream direction towards the dry-ice blockage.

The application relates to a liquid nitrogen supply method without liquid nitrogen supplement and zero evaporation, which comprises the following steps: separating high-purity nitrogen from ambient air; cooling and storing the high-purity nitrogen in a liquid nitrogen collecting tank through a cold head of a refrigerator; when the liquid level of a gas-phase liquid nitrogen tank is lower than a set lower limit value, automatically opening a liquid supplement electromagnetic valve, distributing liquid nitrogen to the gas-phase liquid nitrogen tank through a gas-liquid separator, and realizing liquid nitrogen supplement by gravity flow; recycling the nitrogen gas volatilized in the gas-phase liquid nitrogen tank through a collection return pipeline, temporarily storing and buffering the nitrogen gas in a gas buffer tank, and then conveying the nitrogen gas to the cold head of the refrigerator for re-liquefaction; when the total liquid nitrogen loss of the system occurs, increasing the output of nitrogen gas preparation, supplementing the liquefied nitrogen to the liquid nitrogen collecting tank, and the like. Through on-site nitrogen preparation, nitrogen gas closed-loop recycling and re-liquefaction, and multi-source dynamic compensation, the application realizes independent continuous operation without external liquid nitrogen supplement and zero evaporation, completely gets rid of the dependence on external liquid nitrogen distribution, and greatly improves the sample storage safety and the system operation economy.

The invention relates to a fuel tank arrangement in a liquid hydrogen fuel supply system (1) for storing and providing hydrogen for a gas consumer (8), the system comprising: - an inlet line (11) for providing fuel to a tank (10), - the inlet line (11) having a first valve (111) at a first end and a second valve (112) at a tank end, - the inlet line (11) being provided with an inert gas flushing medium line (13) having a first end connected to the inlet line (11) downstream of the first valve (111) and a second end controllably connected to an inert gas source (130) for inert gas flushing of the inlet line (11), - the inlet line (11) being provided with a fuel gas flushing medium line (14) having a first end controllably connected to the inlet line (11) downstream of the first valve (111) and a second end connected to a gaseous hydrogen source (15) for feeding gaseous hydrogen to the inlet line (11) for performing a first flushing of the inlet line (11). The invention also relates to a method using the arrangement.

The present disclosure relates to a hydrogenation system of a hydrogenation station, which comprises a liquid hydrogen storage tank and a spray tank, wherein the liquid hydrogen storage tank comprises a cooling pipe, an outer shell, and an inner tank for storing liquid hydrogen arranged in the outer shell, the inner tank comprises a tank liquid outlet, and the cooling pipe is arranged on the outer wall of the inner tank for cooling the inner tank; the spray tank comprises a spray liquid inlet, a spray liquid outlet, and a first spray gas inlet, the spray liquid inlet is communicated with the tank liquid outlet for passing the liquid hydrogen in the inner tank into the spray tank, the spray liquid outlet is communicated with the cooling inlet of the cooling pipe for passing the liquid hydrogen in the spray tank into the cooling pipe, and the first spray gas inlet is communicated with the cooling outlet of the cooling pipe for passing the hydrogen gas gasified from the liquid hydrogen in the cooling pipe into the spray tank. Through the above arrangement, the liquid hydrogen in the spray tank can be passed into the cooling pipe to cool the inner tank, reduce the net heat leakage of the inner tank, and further reduce the evaporation amount of the liquid hydrogen in the inner tank to reduce the risk of overpressure of the liquid hydrogen storage tank.

This invention relates to a system and method for filling ultrapure ammonia tank trucks and recovering residual liquid; it includes an ultrapure ammonia purification device and an ammonia recovery unit, comprising several tank trucks and several filling units corresponding to each tank truck; the filling unit includes a liquid phase filling panel and a gas phase filling panel; the liquid phase filling panel is equipped with an ultrapure ammonia filling pipeline and a liquid phase recovery pipeline section; the gas phase filling panel is equipped with a gas phase recovery pipeline section; the inlet end of the gas phase recovery pipeline section is connected to the gas phase filling valve of the corresponding tank truck, and the outlet end of the gas phase recovery pipeline section is connected to the ammonia recovery unit; it has the characteristics of realizing the fractional recovery and effective tracking and detection of ultrapure ammonia, improving filling efficiency while reducing ultrapure ammonia consumption, and ensuring the quality of ultrapure ammonia products.

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

A liquid hydrogen system, comprising: a liquid hydrogen storage device (110), which is configured to store hydrogen comprising liquid-phase hydrogen and gas-phase hydrogen, the liquid hydrogen storage device (110) having a gas-phase port and a liquid-phase port; a re-liquefaction device (120), which is configured to liquefy gas-phase hydrogen into liquid-phase hydrogen, the gas-phase port being in communication with a gas inlet of the re-liquefaction device (120), and a liquid outlet of the re-liquefaction device (120) being in communication with the liquid-phase port; a power generation device (130), an input port of the power generation device (130) being in communication with the liquid hydrogen storage device (110), and the power generation device (130) being configured to use hydrogen for power generation; a battery assembly (140), which is connected to the power generation device (130), the battery assembly (140) being configured to store electrical energy generated by the power generation device (130); and a control assembly (150), wherein the re-liquefaction device (120), the power generation device (130) and the battery assembly (140) are all communicatively connected to the control assembly (150), and the control assembly (150) is configured to control operation of the re-liquefaction device (120), the power generation device (130) and the battery assembly (140).

The present application relates to a kind of double-tank self-pressurizer series online self-generation normal temperature nitrogen blowing replacement system, belong to low temperature equipment technical field.The system of the present application, including: liquid nitrogen tank car, low temperature medium storage tank, first gasifier, second gasifier, valve F1-F13.At present, when nitrogen replacement is stored in tank, fixed gas source is mostly used, but for small system, fixed gas source is high in cost, poor in flexibility.The present application uses nitrogen tank car to prepare nitrogen source for replacement, saves the construction cost of fixed gas source, and the liquid nitrogen tank car has the characteristics of small footprint, movable, and can blow and replace any storage tank anytime and anywhere.

The invention relates to an apparatus, consisting of at least one separation device (12) received in an apparatus housing (10) having a bellows body (14) with individual bellows folds (16), which separates two media chambers (18, 20) from one another within the device housing (10) in a fluid-tight manner, characterized in that that a monitoring device (22) is provided for determining the respective position of the bellows body (14) in the device housing (10), having a displacement transducer (24) which is based on the physical principle of magnetostriction.

This utility model relates to the field of natural gas refueling stations, specifically to a refueling nozzle suspension device for liquefied natural gas (LNG) refueling stations. It includes a refueling machine body and a refueling nozzle. The refueling nozzle is installed on the right end face of the refueling machine body via a connecting hose. A side plate is installed on the right end face of the refueling machine body, and a fixing seat is installed on the upper end face of the side plate. A fixing groove is formed on the upper end face of the fixing seat, and a spring rod is installed at the bottom of the fixing groove. A pressure plate is installed on the upper end face of the spring rod, and the refueling nozzle is arranged below the pressure plate. A through groove is formed on the right end face of the side plate, through which the connecting hose passes. This utility model uses a spring rod and pressure plate structure to press and fix the refueling nozzle, while the pressure plate seals and fixes the gas outlet of the refueling nozzle to prevent dust from adhering to its surface and affecting the working effect of the refueling nozzle.

The utility model relates to liquid nitrogen production technical field, and disclose a kind of filling device for liquid nitrogen production, including bottom plate, still include: install in the even filling subassembly of conveying pipe bottom, the even filling subassembly includes intercommunication in the even piece of conveying pipe bottom, and install in the stabilizing piece of even piece inside, by the setting of even piece and stabilizing piece, effectively solved the problem that traditional liquid nitrogen filling device is unevenly distributed, shunt disc in even piece rotates autonomously under liquid nitrogen impact, and liquid nitrogen is evenly dispersed to each part of container, to avoid local supercooling;Stabilizing piece can reduce the influence of vibration generated when shunt disc rotates on filling process by the cooperation of telescopic link and wedge, ensure that filling process is stable, and both cooperate with each other, improve liquid nitrogen covering uniformity, also enhance equipment operation stability, significantly improve filling precision and work efficiency.

A method for managing BOG comprising providing one or more receiving tanks, each receiving tank comprises a condensation reserve amount of liquefied gas and a bottom distribution header. The header comprises a length of at least 10% of a length of the receiving tank and (ii) a plurality of openings arranged along the length of the distribution header. At least one opening is arranged per meter along the length of the bottom distribution header. The method further comprises providing boil-off-gas (BOG) to at least one receiving tank via the plurality of openings of the header; recondensing the BOG in the at least one receiving tank using the condensation reserve amount of liquefied gas; and terminating the provision of the BOG before pressure of the at least one receiving tank exceeds a pressure threshold of that tank.

This invention provides a safe and efficient method for the storage, transportation, and utilization of hydrogen energy, relating to the field of hydrogen energy storage, transportation, and utilization technology. It uses unsaturated liquid aromatic compounds as the hydrogen storage carrier, and through catalytic hydrogenation, stores hydrogen gas in a chemically bonded form as stable hydrogen oil at room temperature and pressure. This oil is then transported through conventional liquid storage and transportation facilities, followed by catalytic dehydrogenation to release high-purity hydrogen. The regenerated carrier is then recycled for hydrogenation to form a closed loop. This method eliminates the safety hazards of high-pressure and low-temperature hydrogen storage, is compatible with existing petroleum storage and transportation facilities, reduces storage and transportation costs by more than 70% compared to high-pressure hydrogen, achieves a volumetric hydrogen storage density of 55-60 g / L, can directly use hydrogen sources with ≥80% low purity, and is suitable for vehicle-mounted, distributed energy storage, and industrial hydrogen applications. It has zero greenhouse gas emissions throughout its entire lifecycle, solving many pain points of traditional hydrogen storage methods.