112 results about "Recovery cycle" patented technology

Carbon Dioxide capture processes utilizing ammonia, or ammonia in water as the capture fluid for carbon dioxide generate concentrated solutions of ammonium carbonate species in water, which are subsequently decomposed to capture the carbon dioxide and recycle the ammonia. Forward osmosis processes utilize ammonium carbonate species as draw solutions to pull water from saline solutions such as seawater in the ammonium carbonate solution. The ammonium carbonate solution is then heated to decompose the ammonium carbonate to ammonia and CO2 which are both reused, while a portion of the aqueous stream is recovered as pure water. Combination of carbon capture process with an integrated forward osmosis process provide great economies over standalone operations. Furthermore, the very high concentrations of ammonium carbonate provide a further opportunity to include osmotic power recovery cycles with the integrated forward osmosis and carbon capture process.

Systems and methods for improving dense gas solvent extraction of a solute and recovery of the solvent are provided. A pressure of the solvent/solute mixture obtained from an extraction chamber is increased, e.g. with a pump, thereby providing the mixture above saturation conditions. The increased pressure provides greater solubility of the solute and less solvent being vaporized in a heat exchanger. A buildup of solute in the system is reduced, thus improving system longevity. Also, process conditions of the separation process are isolated from those of the extraction process. Accordingly, the process conditions for the separating process are maintained while the process conditions of the extraction chamber vary with ambient temperature, thus saving cost and energy. This isolation also provides an ability to use, in the gas recovery cycle, a heat pump that can be used for many applications and environmental conditions while still using a conventional refrigerant.

Natural gas produced from a well by executing a multiple-phase gas recovery cycle which includes a phase during which a relatively lower evacuation pressure is applied within three chambers in the well to assist in accumulating liquids at a well bottom, followed by a liquid reduction phase which clears the liquid from two of the chambers while leaving the liquid in the third chamber. The remaining liquid is thereafter lifted in subsequent liquid capture and liquid removal phases. The liquid reduction phase clears the fluid from the well more effectively with less interruption in the production of gas from the well while maintaining the full gas productivity of the well.

An apparatus and method providing a refrigeration servicing system that comprises a clean refrigerant source, a recovery circuit and a flushing circuit. The recovery circuit can be configured to recover refrigerant from a cooling system. After recovery cycle is completed, the flushing circuit that is coupled to the recovery circuit can flush clean refrigerant through the recovery circuit. A housing can be provided and configured to house the refrigerant source, the recovery circuit and the flushing circuit.

The invention relates to improvements in compressors and, in particular, to improvements in a method of controlling centrifugal compressors to maximise their efficacy. The compressor has an impeller mounted on a shaft supported by an active magnetic bearing unit and is driven by a variable speed motor at a rotational speed under normal on-load conditions at a calculated pre-surge speed for the required delivery pressure. The actual rotational speed and delivery pressure of the compressor is repeatedly measured and recorded at high frequency. The compressor is allowed to surge periodically after a preset re-calibration time and the compressor is put into a surge recovery cycle when surge is detected, during which the compressor is off-loaded and the rotational speed reduced. The compressor pre-surge speed line is recalibrated during the surge recovery cycle for the current operating conditions and reloads the compressor when the shaft speed reaches the greater of the recalibrated presurge speed line or the load speed.

The present application provides a method and apparatus for cleaning a log file cache. According to the specific path to build log file storage mode, the log record cache arranged in chronological order is stored according to log type and the log ID classification, so that the number of log caches traversed and cleaned up by the system is greatly reduced, and the system cleanup process delay is reduced. In addition, the method of setting a fixed time to clean the cache file in the prior art cannot be combined with the actual system memory usage, so that the resource is often wasted in actual use. The application triggers the cache cleaning by setting a dynamic recovery cycle, and dynamically adjusts the frequency of the cache cleaning according to the memory usage status and the latest cleaning time cycle in real time, so as to ensure the normal operation of the service module.

A waste heat recovery system includes a heat recovery cycle system coupled to at least two separate heat sources having different temperatures. The heat recovery cycle system is coupled to a first heat source and at least one second heat source. The heat recovery cycle system is configured to circulate a working fluid. The at least one second heat source includes a lower temperature heat source than the first heat source. The working fluid is circulatable in heat exchange relationship through a first heat exchange unit, a second heat exchange unit for heating the working fluid in the heat recovery cycle system. The first heat exchange unit is coupled to the at least one second heat source to heat at least a portion of a cooled stream of working fluid to a substantially higher temperature.

A versatile multi-component sail system for propelling any wind-propelled vessel at optimum efficiency on all points of sail with a minimum number of sails, with minimum crew effort, and with all sail handling done from the safety of the cockpit, comprising one or a plurality of horizontally deployed in-place semi-elliptical convertible genoa-jibs (22); vertically deployed, semi-elliptical self-tacking jibs (23); and low-profile in-place automatic jib stowage bags (44). The system's integral sails and sail stowage and control means remain in place and are active throughout the sail deployment, navigation and sail recovery cycle. One or all system components may be used as needed to provide a synergistic combination of performance, safety, and convenience to any wind-propelled vessel over the widest possible range of conditions.

The invention discloses a low voltage ride through protection method for a doubly fed induction generator. The method specifically includes the steps that a crowbar circuit is in parallel connection beside a direct-current side capacitor of the doubly fed induction generator, after a grid fault occurs, the crowbar circuit is started, and accordingly direct-current side voltage after breakdown is maintained stably. A voltage response quality evaluation index is applied to the magnitude of crowbar resistance, the optimal value of the crowbar resistance is determined through influences of direct-current crowbar resistance on the index so that the optimal control effect can be achieved, and the direct-current side voltage is more stable after the fault occurs and can rapidly recover. The invention further provides a scheme that a bypass capacitor is in series connection with the crowbar circuit, and recovery cycles of currents and voltage of a system after the fault occurs are effectively reduced.

An exhaust line of a motor vehicle includes a heat exchanger having a first side for circulating the exhaust gases and a second side for circulating a heat exchange fluid, and a closed recovery cycle for one portion of the heat energy of the exhaust gases, in which said heat exchange fluid circulates, wherein the second side of the heat exchanger is inserted inside the closed cycle. The heat exchanger includes an intermediate wall interposed between the first and second sides of the heat exchanger. The intermediate wall comprises at least one closed cavity including a phase change material. The intermediate wall has a first exchange surface in thermal contact with the exhaust gases and a second exchange surface in thermal contact with the heat exchange fluid.

The invention discloses a metal air fuel cell system. The system includes the following parts: a battery stack, which is formed by a plurality of individual cells in series connection; an electrolysis tank, which is used for storing an electrolytic solution; a liquid supply and recovery cycle sub-module, which is for supplying an electrolyte to the battery stack and recycling the electrolyte into the electrolysis tank; an oxygen supply circulation sub-module, which is used for controlling the air participating in reaction in the cell stack; a thermal management sub-module, which is for controlling heat alternative in the case of electrolyte overheating and low temperature electrolyte starting; and a management module, which is used for collecting individual cell information within the battery stack to control the working conditions of each sub-module. The metal air fuel cell stack system of the present invention has the advantages of high power density, high energy conversion efficiency, sustainable supply, environmental protection and energy saving.

An extraction method of cephalosporin C mainly comprises the steps of primary ultrafiltration, secondary ultrafiltration, macroporous resin adsorption, weakly alkaline resin adsorption and nanofiltration concentration. An ultrafiltration combination technology is adopted to directly filter a fermentation liquid, and the pH value of the obtained clarified filtrate is adjusted by sulfuric acid. The technology effectively reduces the loss of cephalosporin C in the acid adjustment process. The filtrate obtained through the ultrafiltration combination technology has the advantages of good light transmittance, and thorough removal of proteins and other impurities, and the method has the advantages of product quality improvement, increase of the extraction yield of a resin workshop section, and prolongation of the recovery cycle and the service life of resin, and obtained 7-ACA (7-aminocephalosporanic acid) has good quality and good stability.

The invention discloses a high-quality non-metallic sandblasting abrasive circulation device. In the process of recycling the sandblasting abrasive, it is also prepared after separation of fine powder and large particles, magnetic separation, particle size separation, and density separation. Use a dehumidifier to send the dry air to the material storage device and the sandblasting host to prevent the abrasive from getting damp, so that the abrasive sprayed from the spray gun is of high quality with no dust pollution, uniform particle size, uniform density, no moisture, and no agglomeration. High-quality sandblasting abrasives ensure that precious workpieces will not be damaged due to the influence of abrasives during the sandblasting process. The device includes a sand blasting room, the bottom of the sand blasting room passes through the sand suction pipe and the sand return device, the iron removal device, the material storage device 1, the particle size separation device, the specific gravity separation device, the sand lifting device, the material storage device 2, the spraying The sand host is connected in series, and the sand blast host performs sandblasting treatment on the surface of the workpiece through the sand valve sandblasting tube spray gun assembly. The material storage device 1, the material storage device 2, and the blasting host are respectively communicated with an air dehumidifier that provides dry air.

Engine system using alcohol Rankine heat recovery where the engine heat converts alcohol into hydrogen-rich gas which is then introduced into the engine cylinders. The engine system includes a source of liquid alcohol along with an internal combustion engine generating a high-temperature exhaust. Structure is provided for introducing a first portion of the liquid alcohol into the engine and a series of heat exchangers forming a Rankine heat recovery cycle is provided to extract heat from the exhaust and transferring the heat to a second portion of the liquid alcohol, causing it to change phase to a gaseous alcohol. A heat exchanger/catalyst is heated by the exhaust to reform the gaseous alcohol into a hydrogen-rich reformate. Valve structure rapidly introduces the reformate into the engine for combustion and a control system is provided for controlling the ratio of the first and second portions of the liquid alcohol to maximize the amount of the second portion of the liquid alcohol while using a minimum amount of the first portion needed to prevent knock. The heat recovery system uses metallic foams on fins heat exchangers.

A packed rock bed thermal energy storage facility is provided in the form of a pile of unconstrained rock that is free to expand and contract with changing temperature without creating significant stress. A hot fluid inlet and outlet space is provided above the bed and a cold fluid inlet and outlet space is formed by a grid and larger rocks, or by larger rocks only, that support the pile toward a bottom of the bed. Fluid flow can occur downward through the rock bed during heating of the bed and upward through the rock bed during cooling of the bed in a heat recovery cycle. The bed is completely covered by an insulated arched roof. The rock bed may be an enclosure having a roof, walls and a floor with a lower central region and somewhat inclined side regions extending at a gentle slope towards sidewalls supporting the roof.

The invention discloses a method and apparatus for data recovery, the method including: during each recovery cycle of the data recovery process, the first storage node obtains the first data amount ofthe recovered data, it is judged whether it reaches the preset allowable recovered data amount, and if so, the data recovery pauses, wherein the allowable data amount corresponds to the current business scenario, and the allowable recovered data amount is the preset data amount allowed to be recovered in a recovery cycle; it is judged whether the first storage node reaches the preset recovery completion condition or not, if the preset recovery end condition is not reached, the data recovery is continued in the next recovery cycle adjacent to the recovery cycle, and the above steps are executed again, and if the preset recovery end condition is reached, the data recovery process is ended. Visible, in the data recovery, for the current business scenario, the data recovery speed of the firststorage node is limited, so that the impact of the data recovery process on user traffic can be reduced as much as possible.

The present invention describes a method for the treatment of spent pulping liquor for the removal and production of organic substances rich in lignin and recovering or recycling of aqueous cooking chemicals to pulp mill chemicals recovery cycle, said method comprising passing a spent pulping liquor flow from a digester or an evaporator, DF or from any other step in between the digester and the evaporator, through a filtration step in which the flow is separated into one aqueous stream comprising cooking chemicals being recovered or recycled and one stream concentrated with the respect of organic substances; passing the stream concentrated with respect of organic substances either to a lignin depolymerisation step for the production of liquid and pumpable depolymerised lignin or passing the stream concentrated with respect to organic substances to a subsequent filtration step in which an aqueous solution is added and further treatments in order to produce a solid lignin containing product.

The invention relates to the field of medical nursing, in particular to a nasal cavity mucosa cilium nursing flushing fluid and application thereof. The flushing fluid comprises acetylcysteine, a pharmaceutical salt of acetylcysteine or a pharmaceutical precursor of acetylcysteine, and has the function of nursing the nasal cavity mucosa cilium. The flushing fluid has the effects of cleaning the nasal cavity mucosa cilium, promoting the regeneration capacity of the cilium cells of rhinitis patients, avoiding swing of the mucus cilium of the rhinitis patients, increasing the, shortening the cleaning rate recovery cycle of the rhinitis patients, regulating the swing frequency of the nasal cavity mucosa cilium, and the like.

The invention relates to the field of traditional Chinese medicines, in particular to a traditional Chinese medicine composition for treating gynecological diseases. The traditional Chinese medicine composition is prepared from the following components: ginseng, radix angelicae dahuricae, rhizoma sparganic, panax notoginseng, (huai) radix rehmaniae preparate, ligusticum wallichii, ventilago leiocarpa benth, raspberry, arcangelisia loureiri, rubia cordifolia, hairyvein agrimony, perforate fleeceflower, fructus akebiae, curculigo orchioides, frankincense, herba leonuri, cistanche salsa, achyranthes bidentata, areca-nut, trogopterus dung, pangolin scales, rhizoma cyperi, red peony root, fructus cnidii, caster beans, rhizoma alismatis, cassia twig, gastrodia elata, ginger, paeonia suffruticosa, mirabilitum praeparatum, caulis spatholobi and gentiana rhodantha. A pure traditional Chinese medicine preparation is adopted, so that the traditional Chinese medicine composition is safe, free of pollution, free of toxic or side effect, reasonable in formula, significant in curative effect, and free of adverse reaction or toxic or side effect. The traditional Chinese medicine composition has the efficacies of nourishing the liver, tonifying the spleen, tonifying the kidneys, promoting the circulation of qi, dissolving phlegm, promoting blood circulation to remove blood stasis, removing hard mass and breaking stasis, has a good treatment effect on gynecological diseases, such as vaginitis, cervicitis, cervical erosion, pelvic inflammation, annexitis, hysteromyoma and ovarian cyst, and is relatively short in recovery cycle.