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56results about How to "Reduce dissipation" patented technology

Electro-mechanical coupling hydrogel microsphere with stable mechanical property and low loss transduction as well as preparation method and application of electro-mechanical coupling hydrogel microsphere

The invention provides a mechano-electric coupling hydrogel microsphere with stable mechanical property and low loss transduction as well as a preparation method and application thereof, and belongs to the technical field of tissue engineering bioremediation materials. According to the invention, supramolecular engineering and microfluidic technologies are utilized, and a slip ring structure polyrotaxane and conductive polypyrrole network is introduced to construct stress-electric coupling hydrogel microspheres. The molecular slippage mechanism of the slip ring structure stores and releases mechanical energy to reduce mechanical loss, and the conjugated pi-electron movement in the conductive network improves the electron transfer efficiency in the microsphere, so that the loss in stress-electricity conversion is reduced for the first time. Compared with the traditional piezoelectric hydrogel microspheres, the stress-electric coupling efficiency of the low-dissipation microspheres is improved by 2.3 times, and the energy dissipation rate is reduced to 43%. The mechano-electric coupling hydrogel microspheres can reduce cartilage injury of rats, improve behavior results and promote treatment of osteoarthritis by recovering low-loss transduction between tissues.
Owner:RUIJIN HOSPITAL AFFILIATED TO SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE +1

Comprehensive energy-saving method and system for automatic driving of high-speed train

The invention discloses a comprehensive energy-saving method and system for automatic driving of a high-speed train, and belongs to the field of energy-saving operation control of the high-speed train. Train state information, line data information and traction power supply characteristic information can be fused, an optimal working condition sequence is automatically generated by an automatic driving system, and traction energy consumption minimization is achieved; meanwhile, a high-speed train regenerative braking energy dynamic distribution method is constructed, vehicle-mounted energy storage and trackside energy storage of regenerative braking energy and dynamic distribution of traction utilization of trains close to a power supply area can be achieved according to the real-time state of the train, the real-time state of trackside equipment and the real-time state of a traction power supply system, dissipation of the regenerative braking energy is reduced to the maximum extent, and the energy utilization rate is increased. And the utilization of regenerative braking energy is maximized.
Owner:SIGNAL & COMM RES INST OF CHINA ACAD OF RAILWAY SCI +3

A device for extracting celery liquid

The invention discloses a device for extracting celery jelly liquid, comprising an outer cylinder, a driving screw and a water tank, wherein the driving screw is arranged in a containing cavity, and the driving screw is provided with a first feeding section, a first dispersing section, a second feeding section, a grinding section, a third feeding section, a second dispersing section and a discharging section in sequence along its length direction; the water tank is arranged around the outer peripheral wall of the outer cylinder, and the water tank and the outer cylinder together form a sealed water storage cavity; the peripheral wall of the first dispersing section is provided with a recess, and a plurality of stirring rods are arranged in the recess, the inner wall of the outer cylinder is provided with a guide ring, the grinding section is provided with a first grinding disc, and the inner wall of the outer cylinder is provided with a second grinding disc parallel to the first grinding disc. The invention adopts screw extrusion to extract celery jelly liquid, has a fast extraction speed, a high degree of automation, a small number of processes, can be operated continuously, has a high energy utilization rate, is convenient for large-scale industrial production, and has little damage to the active substances in the celery jelly, does not need to be concentrated after extraction, and is convenient for transportation to a consumption place for dilution and use.
Owner:NANAN CITY GREEN BIOGAS TECH DEV & RES INST

Cooling system applied to gas-liquid two-phase fluid

ActiveCN222610514UReduce design capacityreduce dissipationTyresCooling towerVulcanization
The utility model relates to the technical field of nitrogen vulcanization cyclic utilization cooling, and provides a cooling system applied to gas-liquid two-phase fluid, which comprises an air cooler connected with a nitrogen recovery pipeline, the shell-and-tube heat exchanger is connected with the air cooler in series, an air inlet of the shell-and-tube heat exchanger is connected with the shell-and-tube heat exchanger through a pipeline, and an air outlet of the shell-and-tube heat exchanger is connected with the supercharger through a pipeline; and the shaping nitrogen storage tank is connected to a pipeline between the air cooler and the shell-and-tube heat exchanger. According to the utility model, the air cooler and the shell-and-tube heat exchanger connected in series with the air cooler are arranged, so that the heat dissipation of the recovered nitrogen is greatly reduced, the shaped nitrogen with higher temperature is provided, and the steam consumed in the tire shaping process is further reduced. Meanwhile, the cooling capacity of air is fully utilized through graded cooling of the air cooler and the shell-and-tube heat exchanger, the design capacity of the shell-and-tube heat exchanger, the design capacity of the normal-temperature cooling water pump and the design capacity of the cooling tower are reduced, and the operation and maintenance cost is reduced.
Owner:QINGDAO HUAKONG ENERGY TECH

Blade, centrifugal wind wheel, centrifugal fan and design method of blade

The invention relates to the technical field of ventilation equipment, and discloses a blade, a centrifugal wind wheel, a centrifugal fan and a blade design method.The blade is applied to the centrifugal wind wheel, the centrifugal wind wheel is provided with a center shaft, the blade is provided with an inlet edge and an outlet edge, the inlet edge is close to the center shaft, and the outlet edge is away from the center shaft; wherein the inlet edge comprises a first curve section and a second curve section which are in smooth transition connection, the first curve section is in a concave curve shape, and the second curve section is in a convex curve shape; the outlet edge comprises a third curve section which is in a concave curve shape. According to the blade, the centrifugal wind wheel, the centrifugal fan and the design method of the blade, the efficiency bottleneck of an existing centrifugal wind wheel can be broken through, and the efficiency of the centrifugal wind wheel is further improved.
Owner:ZHONGSHAN EBS TECH CO LTD

Non-contact sensor

The non-contact sensor comprises an electret layer and an electrode layer which are arranged in a stacked mode, the electret layer comprises a charge transmission layer and a charge blocking layer, the charge transmission layer comprises a first polymer matrix and conductive particles, and the migration rate of charges in the charge transmission layer can be increased by adding the conductive particles; the electret layer is arranged on the surface of the electret layer, charges are promoted to migrate from the surface into the charge transmission layer, new charges can be generated at the positions where the charges migrated from the surface are located, the surface charge density and the charge quantity in the electret layer are increased, and under the action of the charge blocking layer, the charges can be prevented from leaking to the electrode layer from the charge transmission layer, charge dissipation is reduced, and the efficiency is improved. The charges can be stably stored in the electret layer for a long time; thus, under the action of the charge transport layer and the charge barrier layer, the charge storage capacity is increased, the sensing distance is increased, the efficiency and accuracy of remote detection are improved, and the performance of the non-contact sensor is improved.
Owner:BEIJING INST OF NANOENERGY & NANOSYST

A large-area photochargeable aqueous zinc-ion battery, its preparation method and application

ActiveCN121862904BImprove photoelectric conversion performanceEliminate photoactive area loss
This invention discloses a large-area photo-chargeable aqueous zinc-ion battery, its preparation method, and its application. The method includes the following steps: Two pieces of glass with a transparent conductive layer coated on one side are taken. A positive electrode material is placed on the coated layer of one of the glass pieces. A glass fiber separator and a negative electrode material are sequentially covered on top of the positive electrode material. The other glass piece is then placed on top of the negative electrode material with its coated layer facing down. The positions of the two glass pieces are adjusted so that they are stacked alternately. Pressure is applied to the resulting stacked structure, and three sides are sealed with hot melt adhesive. After the hot melt adhesive has cured, electrolyte is injected into the unsealed side, and then this side is sealed again. The negative electrode of a diode is connected to the glass on the positive electrode side of the battery, and the positive electrode of the diode is connected to the glass on the negative electrode side of the battery, thus obtaining a large-area photo-chargeable aqueous zinc-ion battery. The battery of this invention has the advantages of high light utilization, stable charging, and low loss.
Owner:SANYA SCI & EDUCATION INNOVATION PARK WUHAN UNIV OF TECH

Film surface acoustic wave resonator and filter

The utility model discloses a film surface acoustic wave resonator and a film surface acoustic wave filter, and relates to the field of semiconductor devices, at least one intermediate layer is inserted into at least one dielectric layer of the film surface acoustic wave resonator, so that the physical strength of the dielectric layer inserted with the intermediate layer can be improved, and the relatively thin dielectric layer has a relatively good fracture prevention effect; and for the relatively thick dielectric layer, the middle layer can help to improve the flatness and the surface smoothness in the material growth or sputtering process, so that the relatively thick dielectric layer can avoid relatively large roughness in the forming process. And the thickness of each inserted middle layer is less than 0.2 lambda, so that the propagation of a main acoustic mode is not directly influenced, but for other miscellaneous modes, due to the difference of acoustic propagation paths, reflection is generated at the positions of the middle layers to a certain extent, so that the resonance condition of the miscellaneous modes is destroyed, and the energy dissipation is reduced. And the energy is further limited in the reflection region, so that the Q value of the resonator can be further improved.
Owner:ZHEJIANG STARSHINE SEMICON CO LTD

Magnetic memory cell, logic module, apparatus, device and operational amplifier

The invention provides a magnetic memory cell. The magnetic memory cell comprises a first electrode layer; the piezoelectric layer is arranged on the upper surface of the first electrode layer; the second electrode layer is arranged on the upper surface of the piezoelectric layer; the piezoelectric top electrode comprises a first piezoelectric top electrode and a second piezoelectric top electrode which are symmetrically arranged on the two sides of the second electrode layer, the first piezoelectric top electrode and the second piezoelectric top electrode are arranged on the upper surface of the piezoelectric layer, and the first piezoelectric top electrode, the second piezoelectric top electrode and the second electrode layer are arranged at intervals; the magnetic tunnel junction is arranged on the upper surface of the second electrode layer; and the third electrode layer is arranged on the upper surface of the magnetic tunnel junction. According to the magnetic storage unit, the logic module, the device, the device and the operational amplifier provided by the invention, high-energy-efficiency spin storage and spin logic can be realized.
Owner:CETHIK GRP

Construction of underground heat storage system based on reservoir transformation and evaluation method of heat storage effect

The present invention belongs to the technical field of underground energy storage and heat energy extraction, and discloses a method for constructing an underground heat storage system based on reservoir transformation and evaluating the heat storage effect, the method comprising determining a heat storage layer and a transformation layer; determining the permeability of a rock sample of the transformation layer after low-temperature fluid fracturing, injecting proppant and heat-insulating microbeads into the fracturing specimen, and measuring the equivalent thermal conductivity and mechanical parameters of the transformed specimen containing heat-insulating microbeads; changing the fracturing scheme of the low-temperature fracturing fluid, and for the obtained transformed specimen, changing the injection amount of heat-insulating microbeads, and determining the equivalent thermal conductivity and mechanical parameters corresponding to different injection amounts of heat-insulating microbeads; based on the temperature-seepage-stress coupling model, carrying out aquifer heat storage simulation, and determining the injection-production well spacing in the heat storage layer and the reservoir transformation scheme of the transformation layer. The present invention can reduce the heat dissipation rate of the underground heat storage system, and improve the output fluid temperature and the system heat recovery rate.
Owner:SHANDONG UNIV OF SCI & TECH

A microwave drill bit for deep hard rock borehole-wall-borehole-end drilling while drilling fracturing and a method of use

A kind of deep hard rock hole wall-hole end while drilling fracturing microwave drill bit and method, including microwave drill bit, microwave drill bit is successively equipped with support frame front plate, metal sleeve and water inlet ring, metal sleeve is connected with the rotary drive I installed on support frame front plate, microwave drill bit is connected with microwave mode converter and microwave shunt II respectively, microwave mode converter and microwave shunt II are connected with microwave shunt I by rectangular waveguide respectively, microwave shunt I is successively connected microwave rotary joint, fixed waveguide and microwave generating device, microwave rotary joint is connected with the rotary drive II installed on support frame rear plate;Support frame front plate, support frame rear plate and microwave generating device are installed on the equipment mobile platform of fixed base, counterforce support of fixed base is connected between support frame front plate by driving, the present application realizes hard rock fast drilling while hole wall rock mass fracturing release stress, improves the efficiency of microwave stress release technology.
Owner:NORTHEASTERN UNIV CHINA

A battery replacement battery series heating control method and system

The present invention relates to a battery heating technology, and specifically to a battery series heating control method and system, comprising obtaining a battery data set, fitting a battery characteristic curve through the battery data set, obtaining a current input variable, and controlling the battery to heat itself through its own charging and discharging according to the output value of the battery characteristic curve; discharging at a first preset time interval, and charging at a second preset time interval through an electric vehicle kinetic energy recovery system to obtain a pulse current to increase the internal resistance of the battery to achieve a battery heating effect; calculating the charging current according to the electric vehicle's recovered kinetic energy and the charging voltage, and maximizing the battery's thermal efficiency by controlling the pulse current frequency; calculating the lithium deposition voltage according to the battery temperature and the charging rate, and controlling the charging voltage within the lithium voltage range to ensure safe operation of the battery and extend the battery life.
Owner:CHENGDU EAGLE ELECTRONIC COMMERCE CO LTD

A hybrid mode MRE vibration isolator and its design method

This invention provides a hybrid-mode MRE vibration isolator and its design method. The hybrid-mode MRE vibration isolator is installed on the drive shaft of rotating equipment and includes an irregularly shaped stacked MRE. The irregularly shaped stacked MRE is frustum-shaped, and contains multiple layers of spacers and MRE material layers arranged in parallel at intervals. The spacers are made of ferromagnetic metal. By employing a frustum-shaped stacked MRE with different upper and lower diameters, this hybrid-mode MRE vibration isolator reduces the dimension of the controlled object compared to existing cylindrical MRE vibration isolators. This hybrid-mode MRE vibration isolator directly transfers abnormal vibration energy from large rotating equipment to the MRE material through the drive shaft. The change in MRE stiffness can suppress abnormal vibrations. This vibration isolator is suitable for intelligent vibration reduction of large rotating equipment, especially in rotating shear applications.
Owner:WUXI UNIV

Automobile hub forging heating furnace

The utility model relates to the technical field of hub forging, and discloses an automobile hub forging heating furnace which comprises a base, a heating furnace body is installed at the top end of the base, a heating groove is formed in the top end of the heating furnace body, a groove is formed in the bottom end of the heating groove, and an annular groove is formed in the top end of the inner wall of the groove. The hub raw materials are placed through cooperation of the placing ring and the placing table, the gear motor is used for driving the placing table to rotate, so that the hub raw materials rotate slowly, it is guaranteed that the peripheries of the hub raw materials are evenly heated by the electromagnetic heating pipes, and the hub raw materials are heated evenly through cooperation of the guide ring, the supporting guide rods and the balls. And the placing ring moves up and down synchronously in the rotating process of the placing table, so that the placing ring is separated from the placing table, an empty air channel is formed in the bottom end of the hub raw material, hot air flows at the bottom end of the hub, and the heating rate of the hub raw material is further increased.
Owner:ANHUI DINGFANG METAL PROD CO LTD

Medical endoscope catheter

This utility model belongs to the field of interventional medical devices, specifically relating to a medical endoscope catheter, comprising: a tubular body, wherein an airflow channel extending axially along the inner wall of the tubular body is provided; an end wall, disposed at the first end of the tubular body, wherein a through hole is provided through the end wall, and a plurality of circumferentially spaced ribs are provided on the side of the end wall facing the inner cavity of the tubular body, wherein each rib is distributed in a vortex shape. The airflow is continuously guided by the arched ribs to form a stable vortex ring, reducing energy dissipation caused by turbulence and improving airflow utilization under the same air source pressure; this utility model transforms disordered flow into controlled vortices through geometric constraints on the airflow path, improving cleaning efficiency while reducing the system's working air pressure.
Owner:BEIJING YISHENGSUI TECHNOLOGY CO LTD

A process for the preparation of a high resilience polyurethane material

This invention belongs to the field of materials technology, specifically relating to a method for preparing a high-resilience polyurethane material. This invention involves preparing a flame-retardant chain extender to participate in the chain-extended polymerization of polyurethane. Firstly, the flame-retardant chain extender contains both primary and secondary amine groups, thus acting as a crosslinking agent to some extent during the chain-extended polymerization process. By strictly controlling its addition amount, a moderate crosslinking effect can be achieved on the polyurethane molecular chains, limiting irreversible slippage of the polyurethane molecular chains under stress, reducing energy dissipation, and effectively improving the resilience of the polyurethane material. Simultaneously, since the flame-retardant chain extender also contains nitrogen and phosphorus flame-retardant elements, it can promote the rapid catalytic formation of an expanding carbon layer in the early stages of combustion, reducing heat transfer and isolating gases, thus effectively improving the flame-retardant properties of the polyurethane material.
Owner:GUANGZHU COLORTECH NEW MATERIALS CO LTD

Resistance-reducing turbulent flow rib structure in wheel casing

The invention discloses a resistance-reducing turbulent flow rib structure in a wheel cover, and belongs to the technical field of automobile parts, the resistance-reducing turbulent flow rib structure in the wheel cover comprises a wheel cover body, a wheel brow is fixedly connected to the edge of the outer side of the wheel cover body, a wheel cover internal turbulent flow rib is arranged on the upper edge of the inner side wall of the wheel cover body, and the wheel cover internal turbulent flow rib and the wheel cover body are integrally formed in a compression molding mode. The top of the outer side wall of the wheel eyebrow is fixedly connected with a wheel eyebrow decorating part. An inner concave part is arranged at the top of the wheel cover body, and the inner concave part is of an arc-shaped concave structure; according to the wheel cover, the inner turbulence rib structure of the wheel cover is additionally arranged in the wheel cover body, so that the flowing state of air flow in a wheel cavity is improved, generation of vortexes at the inwards-concave position is greatly reduced, energy dissipation and air resistance in the vehicle running process are reduced, and the endurance mileage of a vehicle is increased.
Owner:CHERY NEW ENERGY AUTOMOBILE TECH CO LTD

Water surface landscape featured ventilation shaft structure of first rain regulation and storage pool

The utility model discloses a ventilation shaft structure of a water surface landscape small article of an initial rain storage pond. The ventilation shaft structure comprises a ventilation shaft body constructed on a top plate of the initial rain storage pond, the ellipsoidal structure is constructed at the upper end of the ventilation shaft body, and the interior of the ellipsoidal structure communicates with the interior of the ventilation shaft body; the first rainproof ventilation window is mounted on the outer side surface of the ellipsoidal structure; the first deodorizing and filtering device is mounted in the ellipsoidal structure; the cylindrical structure is constructed on the top surface of the ellipsoidal structure, and the interior of the cylindrical structure is communicated with the interior of the ellipsoidal structure; the second rainproof ventilation window is mounted on the outer side surface of the cylindrical structure; the second deodorizing and filtering device is mounted in the cylindrical structure; and the landscape decoration structure is mounted on the top surface of the cylindrical structure. The internal space and functions of the ventilation shaft are fully utilized, and the operation requirements of internal ventilation, air pressure balance maintaining and deodorization in the initial rainwater storage pond operation process are met.
Owner:EAST CHINA ARCHITECTURE DESIGN AND RESEARCH INSTITUTE CO LTD

Rapid high-temperature sintering method of compact block functional ceramic

The invention discloses a rapid high-temperature sintering method for compact block functional ceramic, and the rapid high-temperature sintering method provided by the invention comprises the following steps: raw material pretreatment, burdening, pre-sintering, mixing, tabletting and rapid sintering. The lead zirconate titanate-based and potassium-sodium niobate-based piezoelectric ceramic has the advantages that the sintering time is obviously shortened, element volatilization and crystal grain growth are inhibited, the compact sintering of the lead zirconate titanate-based and potassium-sodium niobate-based piezoelectric ceramic is successfully realized, and the piezoelectric strain constants (d33) of PZT-1, PZT-2, KNN-1 and KNN-2 respectively reach 623, 334, 161 and 160pC / N. In addition, due to the small grain size and the compact structure, the dielectric loss is remarkably reduced, and meanwhile, the mechanical strength of the material is improved; the rapid high-temperature sintering method provided by the invention has the characteristics of low energy consumption, high efficiency and environmental protection.
Owner:HUBEI UNIV

Nested structure carbon / carbon composite material thermal insulation assembly and preparation method thereof

The invention discloses a nested structure carbon / carbon composite material thermal insulation assembly and a preparation method thereof. The heat preservation assembly comprises an inner cylinder, an outer cylinder, an upper connecting ring, a lower connecting ring and a core body, the outer cylinder is arranged on the outer side of the inner cylinder in a sleeving mode, the outer cylinder and the inner cylinder are connected with the upper connecting ring and the lower connecting ring through bolts, a closed isolation cavity is formed among the inner cylinder, the outer cylinder, the upper connecting ring and the lower connecting ring, and the core body is arranged in the isolation cavity; the inner cylinder, the outer cylinder, the upper connecting ring, the lower connecting ring and the bolt are all made of a carbon / carbon composite material; and the core body is formed by laminating a plurality of layers of carbon fiber soft felts and a plurality of layers of graphite paper. According to the heat preservation assembly, the erosion effect of heat and erosion gas on the core body can be effectively avoided, the heat insulation effect is better, the actual thickness of the heat insulation functional layer can be effectively reduced, and the use amount of heat preservation materials is reduced.
Owner:NANJING FIBERGLASS RES & DESIGN INST CO LTD

All-fiber laser ultrasonic monitoring system

The invention discloses an all-fiber laser ultrasonic monitoring system. The system comprises a laser excitation unit, an excitation end optical fiber, an optical fiber grating sensor, a demodulation unit, a data acquisition unit and a control unit. The excitation function and the receiving function are realized through the optical fiber and are embedded into a to-be-monitored material. Due to the fact that the cylindrical structure of the optical fiber, the excitation end and the receiving end have direction sensitivity at the same time, under the cooperative influence of the two ends, the all-optical-fiber laser ultrasonic monitoring system is high in sensitivity to a linear transmission path between excitation and receiving two points and within a small deflection angle range, and interference of ultrasonic signals in other directions is small; therefore, the easy-to-damage position of the complex geometric component can be distributed and controlled in a targeted manner, and the monitoring algorithm is simplified.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Device and method for large-scale production of boron nitride nanomaterials

This invention relates to the field of chemical production technology and discloses an apparatus and method for the large-scale production of boron nitride nanomaterials. The apparatus includes a vacuum chamber, a cooling water circulation system, a vacuum pumping system, an exhaust system, a gas path, an automatic stirring device, a material reaction container, and a heating device. The automatic stirring device controls the mixing and stirring of the materials. The material reaction container is connected to multiple evenly distributed air inlets. The heating device surrounds the material reaction container and controls the reaction temperature. This invention improves the thermal treatment effect and chemical reaction efficiency of the raw materials in the gas by equipping the material reaction container with an automatic stirring device and multiple densely distributed air inlets, effectively increasing the quality and quantity of materials processed per batch and improving the production efficiency of boron nitride nanomaterials. The apparatus is simple, has low manufacturing cost, and is easy to scale up; the production method is simple, energy-efficient, and pollution-free, meeting the needs of large-scale preparation of boron nitride nanomaterials.
Owner:JILIN UNIVERSITY

A vapor deposition apparatus

The application provides a kind of vapor deposition device, it includes: processing cavity, inside being equipped with liftable susceptor, the susceptor is used to carry wafer;Several lift pins are arranged in the susceptor, for lifting the wafer;Heating assembly is arranged in the processing cavity, including: heating lamp group and at least two rotatingly connected support arms, the support arm is used to carry the heating lamp group, to drive the heating lamp group moves between the wafer and the susceptor.The application controls the motion trajectory of heating lamp group, makes the heat of heating lamp group evenly distributed on wafer, realizes the uniform heating of wafer, and reduces heat dissipation, improves heat utilization and heat treatment efficiency.
Owner:ADVANCED MICRO FAB EQUIP INC CHINA

Testing device and method for coupling flow and heat exchange performance of porous medium

The invention discloses a testing device and method for coupling flow and heat exchange performance of a porous medium, and the testing device comprises a medium testing unit which comprises a main body pipe section and a porous medium sample installed on the main body pipe section; the airflow providing unit comprises a nitrogen cylinder and a gas rectifier, the nitrogen cylinder is connected with the main body pipe section through a gas pipe, and the gas rectifier is arranged in the pipeline; the heating unit comprises an electromagnetic induction heater, and a heating coil of the electromagnetic induction heater is wound around the position of the pipeline where the porous medium sample is installed; the measuring unit comprises a front thermocouple, a rear thermocouple, a differential pressure transmitter and an infrared thermal imager and is used for testing the temperatures of the front side and the rear side of the porous medium sample, the pressure difference of the front side and the rear side and temperature rise data; the device not only can be used for measuring the permeability and the inertial resistance coefficient of the porous medium, but also can be used for testing the forced convection heat transfer coefficient of fluid and a solid matrix in the porous medium.
Owner:SHANDONG UNIV

Boron nitride coated high-strength elastic ceramic nanowire aerogel as well as preparation method and application thereof

The invention discloses boron nitride coated high-strength elastic ceramic nanowire aerogel as well as a preparation method and application thereof, and belongs to the technical field of superelastic inorganic material preparation. Comprising the following steps: taking silicon carbide nanowire aerogel or silicon nitride nanowire aerogel as a framework, uniformly coating boron nitride on the surface of the framework by adopting a chemical vapor deposition method, and forming fixed boron nitride nodes between adjacent or contacted silicon carbide or silicon nitride nanowires. The strength of the prepared ceramic nanowire aerogel can reach 787.0 kPa, and the ceramic nanowire aerogel has good recovery capacity under the compression strain of 80% and is expected to be used as materials for high-temperature heat prevention and insulation, high-performance damping, heat sealing and the like in an extreme environment.
Owner:XI AN JIAOTONG UNIV

Novel inlet air seal arrangement device

The utility model discloses a novel inlet air seal arrangement device, which is applied to the field of electrophoretic coating, solves the technical problem of unstable effect of the existing air seal device, and adopts the technical scheme that the novel inlet air seal arrangement device comprises a coating production line frame, and is characterized in that an air seal assembly is arranged on the coating production line frame; the air seal assembly comprises an air supply device and an air inducing device, the air supply device and the air inducing device are oppositely arranged in the vertical direction, the air supply device comprises an air curtain device fixed to the coating production line frame and an inlet air feeder connected with the air curtain device, and the air curtain device is communicated with the inlet air feeder through an air supply pipe. A plurality of air volume adjusting valves are arranged in the air curtain device, the air inducing device comprises an air collecting cover arranged above the air curtain device, an air exhaust pipe connected with the air collecting cover and an exhaust fan arranged at the tail end of the air exhaust pipe, the exhaust fan is further connected with a dust removal filter bag device, and the technical effect that reliable air sealing stability can be guaranteed can be achieved.
Owner:JIANGSU CHANGHONG INTELLIGENT EQUIP CO LTD

Environment-friendly glazing calender

The utility model discloses an environment-friendly calender, and relates to the technical field of textile processing equipment. Comprising a glazing calender body, the glazing calender body is provided with a shell, a waste gas collecting device and a heating device are arranged in the shell, the waste gas collecting device comprises a gas suction box, a gas storage box and a purification box, the heating device heats fabric, the gas suction box collects waste gas with heat and sends the waste gas into the gas storage box, and meanwhile the heat generated during heating raises the temperature in the shell; fabric penetrates through the upper portion of the gas storage box, preheating of the fabric is achieved, waste gas in the gas storage box is finally purified by the purification box and then exhausted, energy consumption is reduced, and energy conservation and environment protection in the calendaring process are achieved.
Owner:BEIJING WANGDA WEIYE ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD

A high-efficiency cooling mechanism for a lipstick machine

This utility model relates to the field of lipstick production technology, and in particular to a high-efficiency cooling mechanism for lipstick machines. It includes a cooling chamber, a mold positioning plate attached to the upper end of the cooling chamber, and multiple lipstick forming molds attached to the mold positioning plate. A cold air supply unit is installed inside the cooling chamber, having an air outlet and an air inlet located within the cooling chamber. The air outlet of the cold air supply unit faces the mold positioning plate, allowing circulating cold air to be generated within the cooling chamber and blown towards the mold positioning plate. By adopting an independent cooling chamber combined with a circulating cold air design, there is no need to rely on a long conveyor line, significantly reducing the overall size of the equipment, lowering the external surface area to reduce cold air dissipation, and shortening the pre-cooling time. The cold air is directly blown onto the molds and circulates, improving cooling uniformity and efficiency, and ensuring the quality of the lipstick forming. It is suitable for rapid production of small batch orders, and can efficiently cool even during small-batch production, enhancing production flexibility.
Owner:东莞铭浩设备制造有限公司

A dynamic simulation method of heating pipeline based on differential transformation

The present invention relates to the field of integrated energy system calculation and analysis, and specifically to a method for dynamic simulation of a heating pipeline based on differential transformation, comprising the following steps: S1, using a semi-discrete differential format with a total variation non-increasing property to differentiate the pipeline partial differential equation, thereby converting it into a set of ordinary differential equations; S2, using differential transformation to convert the set of ordinary differential equations into a linear recursive relationship; S3, recursively solving the differential transformation coefficients of the state quantities of the set of ordinary differential equations according to the initial value conditions and boundary value conditions of the equations, obtaining the approximate analytical expression of each state quantity, and then obtaining the change trajectory of each state quantity over time. This method can effectively eliminate the dispersion and dissipation errors in the simulation process of the heating pipeline. At the same time, due to the linear recursive nature of the differential transformation, this method can easily obtain a solution with high time accuracy, thereby ensuring the accuracy and reliability of the pipeline dynamic simulation.
Owner:SOUTHEAST UNIV +1

Wind, light and fire storage integrated energy system with ammonia electricity production and carbon capture functions

The invention relates to the technical field of energy systems, and provides a wind-light-fire storage integrated energy system with ammonia electricity production and carbon capture functions, which comprises a photovoltaic wind power generation system, a liquid air energy storage system, an electrolyzed water system, an ammonia synthesis system, a heat reservoir and a pure oxygen coal-fired power generation system. The photovoltaic and wind power generation system can integrate photovoltaic, wind power generation, liquid air energy storage, water electrolysis hydrogen production, ammonia synthesis and carbon capture technologies, can operate in three modes of sufficient power generation, insufficient power generation and power failure of the photovoltaic and wind power generation system, and improves the utilization rate and operation efficiency of equipment.
Owner:DALIAN LANXUE INTELLIGENT TECH CO LTD