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469results about How to "Efficient cycle" patented technology

Method for separating dimethyl carbonate and methanol through pressure-swing distillation of heat pump, and apparatus thereof

The invention provides a method for separating dimethyl carbonate and methanol through pressure-swing distillation of heat pump, and an apparatus thereof. In the dimethyl carbonate and methanol through pressure-swing distillation of the heat pump, an atmospheric azeotropic steam material obtained from the top of an atmospheric rectification tower is supercharged and heated by a heat pump compressor, and is introduced to a reboiler at the bottom of the atmospheric rectification tower as a heat source, so a liquid in the atmospheric rectification tower is heated, and the self-condensation of the atmospheric azeotropic steam material is completed. Compared with traditional atmospheric azeotropic steam material condensation through using cooling water and kettle liquid heating realized through an extra external heat source, the method in the invention properly improves the temperature and the pressure of an atmospheric azeotropic steam through the heat pump compressor to make the atmospheric azeotropic steam realize the kettle liquid heating and the reasonable and effective energy cycle as a heat source; and the cost generated by the pump heat compressor is far lower than the cost of traditional cooling water and the external heat source, so a good economic benefit is generated.
Owner:YASHENTECH CORP

Electricity generating system driven by traveling wave thermoacoustic engine

The invention discloses a fluctuation thermoacoustic generation system, which comprises the following loop parts in sequence: cold junction heat exchanger, heat regenerator, heater, heat buffer pipe, hot junction heat exchanger, ring-shaped connection pipe and line generator in the pipe, wherein the generator contains a cylinder with one end of casing on the pipe and the other end with line sliding bearing; a double-loop magnetic-inductive soft iron with ring orifice is set in the cavity between cylinder and casing; the permanent magnet is inserted in the outer ring magnetic wall of soft iron; the coil rack is fixed on cylinder inner wall with part of coil in the ring orifice; the elastic or quality component is set in the hot junction pipe; the quality component does shift sliding along the elastic element; the elastic or quality phase modulation component is set in the greenhouse pipe; the quality component does shift sliding along the elastic phase modulation element. The invention can adjust the phase difference of pressure fluctuation and bulk flow fluctuation, which feedbacks the acoustic power to accomplish high effective Stirling cycle as well as inhibits the loop ring current to improve property of entire machine.
Owner:TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI

Anti-tumor nano medicine based on cross-linking biodegradable polymer vesica and preparation method of anti-tumor nano medicine

The invention discloses an anti-tumor nano medicine based on cross-linking biodegradable polymer vesicae and a preparation method of the anti-tumor nano medicine. The anti-tumor nano medicine is prepared by loading a medicine on reversible cross-linking biodegradable polymer vesicae of asymmetric membrane structures; the medicine is a protein medicine, a polypeptide drug or a small molecule medicine; the reversible cross-linking biodegradable polymer vesicae of the asymmetric membrane structures are prepared from a polymer in a manner of self-assembling and cross-linking in sequence; the molecular chain of the polymer comprises a hydrophilic chain segment, a hydrophobic chain segment and PEI molecules which are connected in sequence; the hydrophobic chain segment comprises a polycarbonate chain segment and / or polyester chain segment; the medicine can be compounded and loaded under the electrostatic interaction of PEI; a membrane is reversible cross-linking biodegradable polyester / polycarbonate which is good in compatibility; dithiolane of a side chain is similar to a human body natural antioxidant lipoic acid; a shell takes PEG as a background and can target to cancer cells; the anti-tumor nano medicine has the potential to be a nano medicine system with advantages of simplicity, stability, multifunction and the like.
Owner:SUZHOU UNIV

Method for recycling alumina and sodium oxide from bayer process red mud

The invention relates to a method for recycling alumina and sodium oxide from bayer process red mud. In the method, by adopting a high molecular ratio and high alkali concentration sodium aluminate solution, aluminum extracting reaction can be rapidly carried out under mild operating conditions, so that the recovery rate of alumina in the red mud reaches more than 85%, and the defects, such as equipment scabbing and the like can be effectively prevented and even eliminated; by implementing an efficient crystallization process of an intermediate product of hydrated sodium aluminate, the cycle efficiency of a dissolution medium is greatly improved; due to complete transformation of a phase in the aluminum extracting reaction, a reaction process of recycling sodium oxide can be performed at low temperature and normal pressure; and after secondary sodium removal reaction, the sodium oxide content in final red mud is not more than 1% and is far less than 6-8% of the bayer process red mud. Therefore, the red mud can be doped in large proportion for preparing cement, brick and roadbed materials, concrete additives, environmental remediation materials and other fillers, and the problems such as resource utilization of the red mud, potential environment hazard and the like are hopefully solved.
Owner:INST OF PROCESS ENG CHINESE ACAD OF SCI

Air-cooled refrigerator antibacterial device and air-cooled refrigerator antibacterial control method

The invention discloses an air-cooled refrigerator antibacterial device, comprising a housing. Opposite side walls of the housing are respectively provided with air inlets and air outlets. The air inlet side of the housing is provided with a fan. The air outlet side of the housing is provided with a sterilizing apparatus. The sterilizing apparatus comprises a titanium dioxide structure. The place of the titanium oxide structure is provided with a UV ozone lamp and a negative ion generator. The invention also discloses an antibacterial control method by using the air-cooled refrigerator antibacterial device. When the sterilizing apparatus works, hydroxyl, negative ions and ozone are produced to form a gaseous antibacterial agent with much stronger antibacterial and bactericidal effects than any one or the combination of any two of the above three. So the antibacterial and bactericidal effects are enhanced. The method of the present invention includes sending ozone, negative ions and hydroxyl of low concentration generated by the antibacterial device to every corner of upper, middle and lower shelves of the refrigerator by controlling a ventilation door switch. The ozone, negative ions and hydroxyl are continuously circulated under the action of the ventilation door to kill the bacteria in air and on the surface of foods in the refrigerator. Antibacterial test results show that the sterilization rate is greater than 90%.
Owner:河南新飞制冷器具有限公司

Preparation and use of sludge-stalk fibrous composite

The invention relates to a method for preparing a sludge-straw fibre composite material and application. Municipal sludge, straw fibre and industrial waste slag (desulfurized clinker and steel slag) are used as raw materials to prepare a sludge-fibre micelle copolymer by sludge modification technology and copolymer even stirring technology; the sludge-fibre micelle copolymer is used for ecological protection and restoration of a rock slope, a clay slope and a landfill field slope. The sludge-fibre micelle copolymer prepared by the technology recycles and utilizes sludge and straw fibre which are difficult to process; and compared with various green substrates, the sludge-fibre micelle copolymer does not need to add nitrogen, phosphorus, potassium and organic fertilizer to soil, reutilizes waste and greatly reduces cost. The straw fibre improves the tensile and flexural mechanical performance of the sludge-fibre micelle copolymer and further achieves the mechanical strength index of the slope protection. Grass seeds are mixed to the copolymer; and the hydrological effect of plant and mechanical reinforcement effect of a plant root system are utilized to effectively circulate moisture and achieve the functions of reinforcing the slope and greening environment.
Owner:INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI

Gearbox

Provided is a gearbox provided with a lubrication structure wherein a lubricant that has been distributed can be efficiently supplied to each location to be lubricated, and the power loss is small. The gearbox is comprised of shaft bodies supported by a case (10) in the axial directions of the shaft bodies; a plurality of gears which are supported by the shaft bodies and which are rotatably coupled to the shaft bodies by a shift clutch; a large-diameter gear (80) among the plurality of gears, which has a lower portion immersed in a lubricant contained in a lubricant storage area (91) formed in the lower portion of the case (10) and which rotates to distribute the lubricant upwardly; and a receiver (92) which extends in a direction of the rotational axis of the large-diameter gear (80) to collect the distributed lubricant and circulate the lubricant to locations to be lubricated. The receiver (92) is comprised of a vertical wall (92d) having a surface on which the lubricant that has been distributed to disperse above the receiver impinges and moves downwardly, to introduce the lubricant to a collecting portion of the receiver, and an introduction portion (94) having a surface on which the lubricant that disperses between the receiver (92) and the large-diameter gear (80) flows due to the inertia force, to introduce the lubricant to a collecting portion (92a).
Owner:AISIN AI CO LTD

Reversibly crosslinked biodegradable polymersome with asymmetric membrane structure as well as preparation method and application thereof to nucleic acid medicines

The invention discloses a reversibly crosslinked biodegradable polymersome with an asymmetric membrane structure as well as a preparation method and application thereof to nucleic acid medicines. The polymersome and the preparation method have the advantages that a triblock polymer PEG-P(TMC-DTC)-PEI or PEG-P(DLLA-DTC)-PEI is synthesized and is self-assembled and self-crosslinked to obtain the polymersome with the asymmetric membrane structure or the triblock polymer is linked with a targeting molecule and is self-assembled to obtain targeting RCCPs; the inner shell of the polymersome is PEI and is used for compounding and loading nucleic acid through electrostatic interaction; a membrane is reversibly crosslinked biodegradable polyester/polycarbonate with good biocompatibility; dithiolane of a side chain is similar to a human body natural antioxidant lipoic acid; the outer shell of the polymersome takes PEG as the background and can target cancer cells; by studying that the carrier is compounded with functional siRNA and studying the gene silencing effects in vitro and vivo, in vivo blood circulation and bio-distribution, the condition of treating lung cancer in situ bearing mice and toxic and side effects of the polymersome, the polymersome is expected to become a nanosystem platform integrating the advantages of simplicity, stability, multifunction, and the like and is used for carrying out efficient and active targeting delivery on siRNA to tumors in situ.
Owner:SUZHOU UNIV

High-rotating-speed pulling motor

InactiveCN101552514AProtection lifeEffectively utilize high-speed operationMechanical energy handlingSupports/enclosures/casingsPinionLubrication
The present invention specifically relates to a high-rotating-speed pulling motor. The invention settles a problem that defects and deficiencies exist in the illogical structure of prior motor. The end cap of high-rotating-speed pulling motor is installed with a cylinder jacket protruding frontwards. A rotor shaft is placed I the cylinder jacket. A bearing is sleeved with a bearing inner cap. The front end surface of bearing is pressed with a bearing outer cover. The back side of bearing is installed with a pinion which is composed of a transmission teeth part and a shaft sleeve part. The cylinder jacket is provided with a transmission opening. The top of cylinder jacket is provided with an oil inlet through hole. The lower part of back end plane of bearing outer cover is provided with a groove. The bearing inner cover is provided with an oil hole which is communicated with the groove and the oil inlet through hole. The shaft sleeve part of pinion is fixed with an oil slinger. The back side of oil singer is provided with a back sealing ring. The back sealing ring is fixed with a protective cover and is provided with a plurality of radial annular sealing grooves. The lower part of annular sealing grooves is provided with an oil leakage channel. The base part of cylinder jacket is provided with a main oil return hole and an auxiliary oil return hole. The high-rotating-speed pulling motor of the invention not only realizes the oil lubrication of bearing, but also overcomes the problem of oil leakage. Simultaneously the service lifetime of bearing is guaranteed.
Owner:CRRC YONGJI ELECTRIC CO LTD

Preparation method of multi-core type phosphate compound positive electrode material with core-shell structure for lithium ion battery

ActiveCN103887497AKinetic factors improved and enhancedHigh specific capacitySecondary cellsPositive electrodesPhosphatePhosphoric acid
The invention discloses a preparation method of a multi-core type phosphate compound positive electrode material with a core-shell structure for a lithium ion battery, and belongs to the technical field of lithium ion batteries. The preparation method is characterized in that the compound positive electrode material xLiVPO4F yLi3V2(PO4)3 (1-x-y)LiVOPO4 of the lithium ion battery is prepared by adopting a chemical reduction-solid phase sintering technology. The preparation method comprises the following steps: (1), blending raw materials; (2), adding a carbon source as a reducing agent, mechanically activating and then drying in a vacuum drying oven to obtain a compound precursor; (3), calcining the compound precursor obtained in the step (2) in a sintering furnace under a non-oxidation atmosphere at a temperature of 600-800 DEG C for 1-24 hours, naturally cooling to 300-700 DEG C, and sintering for 1-10 hours to obtain the multi-core type compound positive electrode material xLiVPO4F yLi3V2(PO4)3 (1-x-y)LiVOPO4 with the core-shell structure. According to the compound positive electrode material prepared by adopting the preparation method, components of cores, formed by a selfoxidation-reduction reaction, sequentially comprise LiVPO4F, Li3V2(PO4)3 and LiVOPO4 from inside to outside, and an outermost layer is of a carbon-coated microstructure. The multi-core type phosphate compound positive electrode material is special in structure components, excellent in electrochemical performance, multiple in charging and discharging platforms, easily controllable in charge state, and suitable for a power battery.
Owner:CENT SOUTH UNIV

Hydrogen circulating system and hydrogen circulating method

The invention provides a hydrogen circulating system and a hydrogen circulating method. The hydrogen circulating system comprises a hydrogen storage container (3), temperature regulating devices (32, 33, 34, 321, 331 and 341), a hydrogen storage container valve (36), and a pressure sensor (35), wherein the hydrogen storage container (3) is provided with a hydrogen storage alloy which absorbs hydrogen when a first condition is satisfied and releases hydrogen when a second condition is satisfied; the temperature regulating devices (32, 33, 34, 321, 331 and 341) are used for regulating the temperatures of the hydrogen storage alloy in the hydrogen storage container so that the temperature satisfies the first condition or the second condition; the hydrogen storage container valve (36) is used for communicating the interior of the hydrogen storage container with an external device or disconnecting the interior of the hydrogen storage container from the external device; the pressure sensor (35) is used for detecting the pressure in the hydrogen storage container and controlling the valve of the hydrogen storage container based on the detected pressure. The hydrogen circulating system and the hydrogen circulating method are capable of circulating hydrogen at high efficiency and reducing the usage amount of hydrogen, and the use of a large-capacity storage cylinder for storing hydrogen is avoided.
Owner:TIANJIN SANHUAN LUCKY NEW MATERIAL CO LTD +1

Lobster breeding method based on rice field

The invention relates to the technical field of lobster breeding, and discloses a lobster breeding based on a rice field. The lobster breeding based on the rice field comprises the following steps: selecting and transforming of a rice field, namely selecting a rice field which has sufficient water sources, has no water pollution, is not easy to dry during a dry season and to drown in winter, and has fertile soils; and after rice is harvested, digging the rice field into a concentric-square-shaped pool with a width of 100-120 cm and a depth of 50-70 cm, and digging a cross-shaped ditch with a width of 150-180 cm in the middle of the pool, wherein the four ends of the cross-shaped ditch respectively communicate with the pool. According to the lobster breeding method based on the rice field,through the transformation of the rice field, and the using of the concentric-square-shaped pool and the cross-shaped ditch, activity area of lobster seedlings is increased, thereby increasing the activity amount of the lobster seedlings, and improving the meat quality of the lobster seedlings; at the same time, blocking on the lobster seedlings can be performed, and crashing between the lobster seedlings and rice seedlings is reduced, thereby increasing the yield of the rice field; and oxygen-increasing equipment is used to improve an oxygen content in water, and improve the survival rate ofthe lobster seedlings, thereby improving yields and improving incomes.
Owner:合肥万丰生态稻虾养殖专业合作社
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