192 results about "Liquid gas" patented technology

The application discloses an ultrasonic-temperature double-triggered double-liquid gas phase change contrast agent and a preparation method thereof. The preparation steps comprise the following steps: adding an isotonic buffer solution into a prepared composite phospholipid film, oscillating after ultrasonic dispersion, obtaining a targeted phospholipid vesicle dispersion; then high-pressure double-liquid co-loading is carried out, and the phase change temperature and the ultrasonic response are calibrated; filtering through a filter membrane, collecting the precipitate after centrifugation, adding a protective solution after washing with a PBS buffer solution, and sealing and storing to obtain the double-liquid gas phase change contrast agent. After the contrast agent enters the body, under the ultrasonic double triggering of the physiological temperature and an ultrasonic imaging instrument, the double-liquid gas synchronously phase changes into a gaseous state, drives the contrast agent to rapidly expand from a nano-sized particle into a micron-sized microbubble, realizes ultrasonic enhanced imaging, and has a significant clinical application value.

A ship has a hull, at least one double-shell tank mounted on the hull, having an inner tank storing liquefied gas and an outer tank covering the inner tank, at least one first discharge tower extending upward from the hull, at least one second discharge tower extending upward from the hull independently of the first discharge tower, a first discharge line connecting an upper portion in the inner tank and a tower interior of the first discharge tower, a second discharge line connecting the inner tank and an inter-tank region of the outer tank and a tower interior of the second discharge tower, and a pressure release device provided in the second discharge line, which is closed normally and opened when a pressure of the inter-tank region exceeds a prescribed inter-tank allowable value.

This invention relates to a storage facility (71) for liquefied gases, comprising a support structure (3) and a tank (1), wherein the storage facility (71) includes through structures (12, 13) fixed to the support structure and extending through a top wall and an upper support wall, wherein the through structures (12, 13) include a cylinder (18) and a curved top member (28), the curved top member (28) being fixed to the upper end of the cylinder (18), and at least one pipe extending through the curved top member, wherein the pipe is fixed to the curved top member using a support device (43), and wherein the support device includes: - a support ring (44) welded around the pipe, - a support tube (45) welded to the support ring on one side and to the curved top member on the other side. The invention also relates to ships for transporting cold liquid products, transfer systems for cold liquid products, and methods for loading or unloading ships.

1. Name of the product in this design: Detachable LPG cylinder positioning terminal. 2. Purpose of this design: This design is used for monitoring the location information of liquefied gas cylinders. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

The application provides a preparation method of a composite molecular sieve and application of the composite molecular sieve in heavy oil cracking, and the preparation method comprises the following steps: dissolving an aluminum source, a silicon source and a structure directing agent in water, and then performing crystallization treatment to obtain a ZSM-5 crystal seed solution; etching Y type molecular sieve in water by using an alkaline substance to form a hollow structure, and then mixing the hollow Y type molecular sieve with acidic silica sol to obtain a solution containing the hollow Y type molecular sieve; mixing the ZSM-5 crystal seed solution and the solution containing the hollow Y type molecular sieve, and then performing temperature crystallization, and then separating a crystallization product, and then performing washing, drying and calcination to obtain a ZSM-5 / Y composite molecular sieve, and then performing ion exchange reaction, and then performing calcination to obtain a H type ZSM-5 / Y composite molecular sieve product. The composite molecular sieve synthesized by the application has the advantages of high activity, good selectivity and the like when the composite molecular sieve is prepared into a catalyst, high liquefied gas and propylene yield can be obtained, and the composite molecular sieve is particularly suitable for the field of petrochemical catalytic cracking.

1. Name of the product in this design: Liquefied Gas Transport Semi-Trailer. 2. Purpose of this design: This design is intended for use as a semi-trailer for transporting liquefied petroleum gas. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

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 present application relates to the field of power distribution network voltage control, and particularly relates to a liquefied gas leakage video image intelligent monitoring method based on knowledge distillation, which comprises the following steps: acquiring a data set of liquefied gas leakage images, and dividing the data set into a training set, a validation set and a test set according to a proportion; using an open-source public data set to pre-train a knowledge distillation model to obtain a teacher model, extracting the soft label of the teacher model and constructing a student model, the student model being a liquefied gas leakage monitoring model based on knowledge distillation; setting preset training conditions for the teacher model and the student model; based on the preset training conditions, training the teacher model and the student model using the training set, the teacher model guiding the training of the student model through a knowledge distillation method to obtain a target student model, so that the target student model can approach the performance of the teacher model; and monitoring the liquefied gas through the target student model to obtain a liquefied gas leakage monitoring result.

A multiply redundant safety system that protects humans and assets while transfer(s) / fuelling of on road / off road, rail, marine, aircraft, spacecraft, rockets, and all other vehicles / vessels utilizing Compressed and or Liquefied Gas Fuels / compound(s). Utilizing Natural Gas Chemical Family of Hydrogen / Propane / ethane / ammonia / and any mixtures along with or with out oxidizer(s), such as Liquefied Oxygen, Oxygen Triplet (O3) / ozone / hydrogen peroxide / peroxide / solid oxidizer(s) one or more processors, utilizing Artificial Intelligence techniques / machine learning in combination with one or more sensors; in combination with one or more micro switches / actuator(s) combine to detect any leaks / fire(s) / or explosion hazards / vehicle motion / arc's, spark(s) / and other hazards for quickly mitigating / locking out / stopping fueling / gas / transfers / vehicle releasing system(s).

The embodiment of the specification provides a liquefied gas leakage video image autonomous monitoring method and device, wherein the method comprises the following steps: collecting a liquefied gas leakage video image, generating a liquefied gas leakage video image data set, and dividing the liquefied gas leakage video image data set into a labeled data set and an unlabeled data set; the labeled data set and the unlabeled data set are respectively divided into a training set, a verification set and a test set according to respective proportions; and data enhancement is performed on the training set; a liquefied gas leakage monitoring S-LG model based on a yolov7 improved teacher-student structure is constructed and trained; and based on the trained S-LG model, liquefied gas leakage video image liquefied gas leakage video image is monitored.

A liquid-gas exchange device for hazardous drugs includes a syringe, a first connector, a second connector, and a pressure equalization device. During drug dispensing, the collection section collects toxic gases, maintaining pressure balance between the internal and external atmospheric pressures of the drug bottle or bag. This also prevents small amounts of hazardous drugs inside the bottle or bag from passing through the second connector in gaseous form or via atomization. During drug retrieval, the collection section collects and supplies clean air, maintaining pressure balance between the internal and external atmospheric pressures of the drug bottle or bag, and facilitating the removal of the hazardous drugs. The hazardous drugs are blocked by a hydrophobic and breathable membrane, preventing them from entering the collection section.

This application relates to the field of alarm instruments and discloses a composite alarm with a split structure, comprising a sensing module, an alarm module, a first housing structure, and a second housing structure. The sensing module is disposed in the first housing structure, and the alarm module is disposed in the second housing structure. The first and second housing structures are independent of each other, and the sensing module and the alarm module are electrically connected. This application separates the sensing module for detecting liquefied gas leaks and the alarm module for issuing alarm information into two independent entities by placing them in their respective housing structures. Simultaneously, the electrical connection between the sensing module and the alarm module ensures data transmission between them. When the sensing module detects a liquefied gas leak, the alarm module issues an alarm, thereby enabling timely detection of the alarm issued by the liquefied gas leak detection alarm.

The utility model belongs to liquefied gas cylinder technical field especially relates to a liquefied gas cylinder fixing support with pressure early warning function, including bottom plate and vertical rod, be provided with fixing device on the bottom plate top. This liquefied gas cylinder fixing support with pressure early warning function, through setting clamping mechanism, when fixing the liquefied gas cylinder, place the cylinder on the top of the bottom plate, then turn down the arc clamping plate two by rotating block and rotate around the connecting shaft to the horizontal position, start motor and drive the rotating shaft to rotate again, cooperate two gear engagement transmission, drive threaded rod one rotation and install block threaded connection, so that arc clamping plate two close to the cylinder and clamp the cylinder, when needing to take out the cylinder, reverse the motor, make arc clamping plate two away from the cylinder, and turn over arc clamping plate two upwards, make arc clamping plate two be located above the cylinder, thereby avoid the take-out of arc clamping plate two to the cylinder and cause the obstruction, be convenient for the fixation and take-out of different specifications of liquefied gas cylinder.

The invention relates to a liquefied gas storage facility (1), comprising: a load bearing structure (10) having a bottom wall (21) and a vertical load bearing wall (12) consisting of N vertical load bearing plates (14); and a can comprising a bottom wall (21) and a vertical wall (22), said bottom wall (21) having N / 2 angular sectors, the sealing membrane of each angular sector (25) of the bottom wall (21) comprising first corrugations (72) spaced apart from each other by a regular corrugation pitch (26), the sealing membrane of the complete vertical plate (241) has a vertical corrugation (172) continuously connected to the first corrugation (72) of the sealing membrane of the angular sector (25) of the bottom wall (21), and wherein the sealing membrane of the vertical plate of each half has a vertical corrugation (172) which is connected to the first corrugation (72) of the sealing membrane of the angular sector (25) relative to each angular sector (25). Two of the vertical corrugations (172) of the sealing membrane are spaced apart from each other by a special corrugation pitch (27).

The present invention provides an aerosol composition that does not require emulsification of water and liquefied gas, can be uniformly dispersed for several seconds (e.g., 2 seconds or more) by shaking the container before spraying, can be sprayed with a stable composition, and produces a freezing spray that provides a sustained cooling effect. [Solution] An aerosol composition comprising water, a hydrofluoroolefin having a boiling point of 5 to 30°C, and dimethyl ether, wherein the dimethyl ether content is 10 to 40% by mass, and the composition is separated into two layers.

The present invention relates to a cryogenic storage tank equipped with an external evaporative cooling blocking device capable of simultaneously vaporizing liquefied gas and insulating the cryogenic tank, thereby ensuring thermal insulation performance and replacing a heat exchanger. A cryogenic storage tank equipped with an external evaporative cooling blocking device capable of simultaneously vaporizing liquefied gas and insulating the cryogenic tank according to one embodiment of the present invention may include: an inner tank for storing a cryogenic fluid and having one or more transfer pipes on one side for transferring the cryogenic fluid; an outer tank that surrounds the inner tank; a vacuum insulation layer for forming a vacuum space between the inner tank and the outer tank; and an evaporative cooling blocking device installed on the outer wall of the outer tank, which transfers radiant heat to the cryogenic fluid introduced through the transfer pipe to raise the temperature of the cryogenic fluid to room temperature.

1. Name of the product in this design: Liquefied Gas Tank Heating Pad. 2. Purpose of this design: for use as a heating pad for liquefied gas tanks. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1. 5. The top view can be seen in the perspective view 2, so the top view is omitted; the bottom view can be seen in the usage view 1, so the bottom view is omitted.

1. The name of the design product: gas liquid level meter. 2. The use of the design product: for detecting whether there is liquid gas at a certain position in the liquefied cylinder. 3. The design points of the design product: in the perspective view. 4. The picture or photo that best indicates the design points: perspective view.

The application discloses a method for carbon dioxide hydrogenation driven by renewable energy, which comprises the following steps: a renewable energy power generation device generates power by using renewable energy; the generated electric energy is stored and used by a renewable energy storage device; carbon dioxide collected by a carbon dioxide collecting device and hydrogen obtained by electrolyzing water are introduced into a raw material buffer tank, mixed and then introduced into a micro-reactor hydrogenation device to perform carbon dioxide hydrogenation reaction; reaction products are separated by a three-phase separator to obtain product water as raw material for electrolyzing water; liquid products are introduced into a liquid hydrocarbon separation system to separate C5 + gasoline products; gas products are introduced into a gas separation system to separate unreacted carbon dioxide and hydrogen, lean dry gas, low-carbon olefins and liquefied gas; the unreacted carbon dioxide and hydrogen are recycled to the system.

The utility model discloses a special anti-metal label of liquefied gas cylinder, including marking part, still including transparent shell cover, chip base piece, fastening base, anti -drop base, high frequency component, elastic sheet and fastening cap, the outside of marking part is equipped with marking boss, and transparent shell cover buckles outside marking boss, chip base piece is clamped in the back of marking part inlay groove no.

This invention discloses a liquefied petroleum gas (LPG) hydrotreating process for olefin removal and desulfurization. The feedstock consists of one or more types of LPG derived from refinery catalytic cracking, coking, or other units, as well as light hydrocarbons derived from oil and gas fields. After removing hydrogen sulfide from the LPG in a desulfurization tower, the feedstock is pressurized by a feed pump, mixed with hydrogen, and then heated and vaporized in a heat exchanger and furnace. It then enters a hydrorefining reactor for olefin saturation, removal of mercaptans and other impurities, and then enters a desulfurization reactor to remove hydrogen sulfide generated during the hydrotreating reaction. The refined desulfurized LPG is then cooled by heat exchange and enters a low-pressure separator. The refined LPG after gas-liquid separation is sent to a LPG separation unit. This process yields refined LPG products with low olefin and low sulfur content.

To inhibit pressure drop of a space between inner and outer tanks in cooling down of a multiple heat-insulating structure tank for storage of a liquefied gas to maintain soundness of a tank structure.SOLUTION: A method for cooling a tank for storing a liquefied gas, which includes an inner tank (3) and an outer tank (5), before the tank is filled with the liquefied gas, an object to be stored, includes: introducing a cooling liquefied gas (CH) into an inner tank internal space (7); and supplying the liquefied gas to a space (9) between the inner and outer tanks if a pressure of the space (9) between the inner and outer tanks becomes a predetermined value or lower after introduction of the cooling liquefied gas (CH) starts.SELECTED DRAWING: Figure 1

The invention relates to a storage installation (1) for liquefied gas, comprising a metal support structure (2) and a sealed and thermally insulated tank (71) arranged in the support structure, the tank comprising a metal sealing membrane (13) and a thermal insulation barrier (12), the tank (71) comprising a top wall (4) and a vertical wall (5), in the storage installation, the sealing membrane (13) of the top wall (4) comprises a plurality of panels (15), the top wall (4) being locally interrupted to delimit a loading / unloading opening (7), the tank comprising a connecting beam (22) located at the level of the edge, in the storage installation, the sealing membrane (13) of the top wall (4) comprises an edge panel (29) adjacent to said loading / unloading opening (7) and / or adjacent to the connecting beam (22), the edge panel (29) comprising a notch (30) and the sealing membrane of the top wall comprising a connecting strip (26) comprising a shifted portion (28) welded to the edge panel (29) and overlapping the notch (30).

The application discloses a residual oil alkali metal treatment-catalytic cracking combined processing method, which comprises the following steps: (1) mixing residual oil raw materials and alkali metals into a reactor to perform reaction; (2) performing solid-liquid separation on the material after the reaction in step (1) to obtain a solid-phase product and generated oil; and (3) feeding the generated oil obtained in step (2) into a catalytic cracking device, and performing fractionation on the material after the reaction to obtain dry gas, liquefied gas, catalytic cracking gasoline, catalytic cracking light diesel oil, catalytic cracking heavy distillate oil and coke. The method can produce high-quality low-sulfur gasoline fraction, has a long running cycle, does not need high-temperature and high-pressure conditions and has low hydrogen consumption, thereby effectively improving fuel quality, reducing device running cost, realizing energy saving and consumption reduction.

1. Name of the product in this design: Gas Level Gauge. 2. Purpose of this design: To detect whether there is liquefied gas at a certain location inside a liquefied gas cylinder. 3. The key design features of this product are its perspective view. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The present invention relates to a gas liquefaction apparatus (1), the apparatus (1) comprising: a supply circuit (4) for supplying a gas to be liquefied, having an upstream end (2) intended to be connected to a gas source and a downstream end (3) for discharging the liquefied gas; a liquefaction apparatus (7) including a heat exchanger (6) and a cooler (12) having a cycle for cooling the cyclic gas, the cooler (12) including a cycle circuit (5) for circulating the cyclic gas; and a purification device (13) attached to the supply circuit (4) upstream of the liquefaction apparatus (7), configured to purify the gas from the gas source and discharge the purified gas.