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1070 results about "Collector device" patented technology

Multi-source energy fusion agricultural greenhouse intelligent heat supply and regulation and control system

The invention relates to the technical field of intelligent heat supply, in particular to a multi-source energy fusion agricultural greenhouse intelligent heat supply and regulation and control system, which comprises a multi-source energy acquisition module for acquiring energy output parameters of a solar heat collector, a geothermal well and a biomass boiler in real time and monitoring external meteorological data of a greenhouse; the energy dynamic matching module is used for generating an energy scheduling strategy through a dynamic priority algorithm and outputting a target energy type and supplied energy; the energy storage buffer module is used for storing or releasing the supplied energy and outputting the temperature and the residual capacity of an energy storage medium; the multi-parameter coupling regulation and control module is used for generating a regulation and control instruction through an environment parameter coupling model; the actuating mechanism driving module is used for converting the regulation and control instruction into control signals of a heater, a fan and a humidifier; the self-learning optimization module is used for dynamically correcting the dynamic priority algorithm and the environment parameter coupling model; according to the invention, through multi-parameter cooperative regulation and dynamic optimization, crops are ensured to be in the optimal environmental conditions in different growth stages.
Owner:GANSU AGRI UNIV

Multi-energy coupling air source heat pump heating model selection and operation method and system

The invention provides a multi-energy coupling air source heat pump heating type selection and operation method and system, and relates to the technical field of air source heat pumps, which comprises the following steps: predicting a heating load according to building parameters and meteorological parameters, selecting an air source heat pump, and connecting a solar heat collector, a heat storage water tank and a heating tail end. Then, according to the meteorological parameters, the heat yield of the solar heat collector is calculated, the heat collection area and the volume of the heat storage water tank are determined, and an air source heat pump heating performance curve is established; and finally, the input temperature threshold value of the solar heat collector and the operation time period of the air source heat pump are determined based on the system operation optimization model, solar energy is preferentially used for heating, heat supply supplementation is conducted in combination with the heat storage water tank and the air source heat pump, and therefore the energy utilization efficiency is improved, and the heating cost is reduced.
Owner:SHANGHAI HOUCE ENERGY TECH CO LTD

Photo-thermal power generation system mirror surface light following angle control system and method based on temperature control

The invention discloses a system and a method for controlling a mirror surface light following angle of a photo-thermal power generation system based on temperature control, and aims to solve the problems that an existing photo-thermal power generation system often depends on a fixed mirror surface angle adjusting strategy and cannot respond to complex illumination and temperature changes in time, so that the heat collection efficiency is low, and the system is inconvenient to use. The system can accurately adjust the angle of the heat collector in real time, maximize the illumination receiving efficiency and optimize the heat collection effect through the cooperation of a plurality of intelligent modules such as the data acquisition module, the illumination prediction module, the temperature prediction module and the mirror surface adjustment module, in addition, the system ensures that the heat collection efficiency is not influenced by angle adjustment through the heat collection efficiency detection and feedback module, and the system is suitable for popularization and application. According to the combined adjusting method based on temperature self-sensing, the self-adaptive capacity, the heat collecting efficiency and the system stability of the photo-thermal power generation system are improved, and the hysteresis quality and instability in the traditional technology are overcome.
Owner:YANTAI AVIATION HYDRAULIC CONTROL CO LTD

Photo-thermal assembly with hexagonal three-split structure

The invention relates to the technical field of photo-thermal assemblies, and particularly discloses a photo-thermal assembly with a hexagonal three-split structure, which comprises a photovoltaic laminated part, a heat collector and a frame coating the side edges of the photovoltaic laminated part and the heat collector, the photovoltaic laminated piece sequentially comprises a front plate, a front packaging material, a battery layer, a rear packaging material and a rear plate from bottom to top; the heat collector comprises a second-layer metal plate and a first-layer metal plate, the second-layer metal plate is arranged on the top face of the first-layer metal plate, and an inlet area, a flow dividing area, an evaporation area, a flow guiding area, a confluence area and an outlet area are arranged on the upper surface of the second-layer metal plate. Through geometric structure innovation and flow channel engineering optimization, balance among fluid mechanics, heat conduction and structural strength is achieved, a brand new technical scheme is provided for efficient and safe photo-thermal integrated equipment, and remarkable engineering application value and market competitiveness are achieved.
Owner:北京中能人环高科技有限公司

Tower type solar power generation system and method based on lunar soil particle moving bed heat exchange

The invention belongs to the technical field of solar photo-thermal power generation, and discloses a tower type solar power generation system based on lunar soil particle moving bed heat exchange, which utilizes local materials of lunar soil to prepare solid heat storage particles as a heat transfer and heat storage medium, greatly reduces the mass and volume of the system and the cost and risk of transporting materials from the earth, and improves the energy efficiency. The efficient particle moving bed heat exchanger combining the particle receiver and the heat collector utilizes direct efficient contact heat exchange between solid particles and between the particles and a heat exchange working medium, has the characteristics of high heat exchange efficiency, small heat loss and compact structure, and is particularly suitable for space vacuum and microgravity environments; it is ensured that heat is reliably and stably transmitted to the Brayton cycle power generation system from concentrated solar energy, and power is generated through the Brayton cycle power generation system.
Owner:XI AN JIAOTONG UNIV

Power generation system and method based on compressed air energy storage technology through solar auxiliary hot humid air

Provided is a power generation system and method based on compressed air energy storage technology through solar auxiliary hot humid air. The system comprises an energy storage subsystem, a solar heat storage subsystem, and a turbine generator subsystem which are connected in sequence. The energy storage subsystem includes a motor, a compressor, and an air storage tank which are connected in sequence. The solar heat storage subsystem includes a solar heat collector and a solar heat exchanger. The solar heat collector and the solar heat exchanger are connected through a heat transfer oil circulation loop. The system compresses and stores compressed air using the electricity of the power grid when an electrical load is within a low valley, releases the compressed air when the electrical load is within a peak, and heats and humidifies the air before entering the turbine using the recovered compression heat and solar energy.
Owner:DATANG DONGBEI ELECTRIC POWER TESTING & RES INST

Photovoltaic photo-thermal heat pump heating control method based on dynamic load

The invention relates to the technical field of photovoltaic photo-thermal heating, and discloses a photovoltaic photo-thermal heat pump heating control method based on a dynamic load. The method comprises the steps that the solar irradiation intensity, the environment temperature, the relative humidity and the building heat load requirement of a target heating area are measured and recorded, and environment load data are formed; on the basis of the data, the connection topology of a photovoltaic photo-thermal heat collector array and a heat pump unit is optimized through a multi-source heat supply assembly collaborative configuration method, and a system structure configuration scheme is determined; according to the scheme, the output thermal power of the heat collector array is dynamically predicted through a photo-thermal conversion efficiency prediction method, and a predicted thermal power distribution scheme is obtained; and finally, on the basis of the predicted heat power distribution scheme, a circulation path of a heat medium between the heat collector array and the heat pump unit is independently controlled through a heat medium directional scheduling method, and a heat medium scheduling instruction is generated. According to the method, dynamic cooperation of all assemblies of the heating system can be achieved, the method adapts to building heat load changes, and the flexibility and adaptability of system operation are improved.
Owner:GANSU NATURAL ENERGY RES INST (UNITED NATIONS IND DEV ORG INT SOLAR TECH PROMOTION & TRANSFER CENT)

Focus ray paraboloid detection equipment and use method

The invention discloses focus ray paraboloid detection equipment and a use method, and belongs to the field of solar reflector precision detection. The device comprises a ray source, a scale and a keel, rays or extension lines of the rays of the ray source penetrate through a paraboloid focus to be detected, a dial corresponding to the rays is arranged on the scale, the original point of the dial and an intersection point ray source are located on the same paraboloid, and the ray source and the scale which are located on the same paraboloid are fixedly connected through a support. The bracket and the ray source form a focus ray paraboloid detection unit; the focus ray paraboloid detection units are arranged in parallel and are perpendicular to the keel; each focus ray paraboloid detection unit is divided into a left group and a right group which are symmetrical, and the left-right distance between the inner sides is larger than or equal to the outer diameter of a heat collecting pipe of a detected paraboloid heat collector. According to the invention, a detection result and an adjustment target can be formed on site after regular operation and detection on an application site.
Owner:HARBIN QINGHEFENG TECHNOLOGY CO LTD

Molten salt tank type heat collection device, operation method thereof and molten salt tank type photo-thermal power station

The invention relates to a molten salt groove type heat collecting device, an operation method of the molten salt groove type heat collecting device and a molten salt groove type photo-thermal power station, and belongs to the field of molten salt groove type photo-thermal power stations. The heat collection mechanism comprises a plurality of heat collectors which are connected in series through pipelines to form a heat collector group, and the two ends of the heat collector group are communicated to the molten salt tank; the heat collector set is arranged in a U shape, a pipeline at the bottom of the U shape is a middle jumper pipe, and the middle jumper pipe is located at the highest position. And a gas outlet of the gas heating mechanism is communicated with the middle jumper pipe. The two ends of the U-shaped heat collector set are communicated with the fused salt tank, the highest position of the heat collector set is communicated with the gas heating mechanism, heating and salt injection can be conveniently conducted on the heat collectors, the automation degree is high, and convenience and rapidness are achieved.
Owner:CHINA SHIPBUILDING NEW POWER CO LTD +1

Heat-collecting member and agricultural house

A heat collector includes a body including a hollow portion extending from a first end to a second end of the body and being a metal-extruded body having a light-receiving surface to receive sunlight, a pair of lids adjacent to the first end and the second end and covering the hollow portion, an inlet located in one of the pair of lids to allow a heating medium to enter the hollow portion, and an outlet located in one of the pair of lids to allow the heating medium to exit the hollow portion.
Owner:KOBE STEEL LTD

Carbon dioxide trapping system based on solar energy

The carbon dioxide trapping system based on solar energy comprises an absorption tower which is provided with a first inlet, a first outlet, a second inlet and a second outlet; the desorption tower is provided with a third inlet, a third outlet, a fourth inlet, a fourth outlet and a fifth outlet; an inlet of the first pipeline is communicated with the fourth outlet, an outlet of the first pipeline is communicated with the fourth inlet, and a first pump body is arranged on the first pipeline; the reboiler is used for heating the liquid in the first pipeline; the solar heat collector comprises a light gathering piece, the light gathering piece is used for gathering sunlight, the sunlight gathered by the light gathering piece serves as a heat source of the reboiler, the light gathering piece is arranged on at least one of the absorption tower, the desorption tower and the solar installation frame, and the solar installation frame, the absorption tower and the desorption tower are arranged at intervals. Therefore, the carbon dioxide trapping system based on the solar energy has the advantages of reducing energy consumption and saving energy.
Owner:HUANENG LONGDONG ENERGY CO LTD ZHENGNING POWER PLANT +1

Collector device, wafer inspection system with a collector device

Collector device for collecting the electromagnetic radiation (30) emitted by a radiation source (14), wherein the collector device (15) is configured such that electromagnetic radiation (30) incident at a first focal point (26) is directed to a second focal point (27). The collector device comprises a first shell (31, 32, 33) made of a material transparent to the electromagnetic radiation (30), wherein the first shell (31, 32, 33) is coated with a first reflective layer (35, 36, 37) made of aluminum. The collector device comprises a second shell (32, 33, 34) made of a material transparent to the electromagnetic radiation (30), wherein the second shell (32, 33, 34) is coated with a second reflective layer (36, 37, 38) made of aluminum.The first shell (35, 36, 37) and the second shell (36, 37, 38) are arranged coaxially with respect to an axis (28) spanning between the first focal point (26) and the second focal point (27), wherein the first shell (31, 32, 33) forms a first back mirror off which the electromagnetic radiation (30) between the first focal point (26) and the second focal point (27) is reflected, and wherein the second shell (32, 33, 34) forms a second back mirror off which the electromagnetic radiation (30) between the first focal point (26) and the second focal point (27) is reflected. The invention also relates to a wafer inspection system with such a collector device.
Owner:CARL ZEISS SMT GMBH

Solar heat utilization optimization method of heat collector, heat collector equipment and computer device

The invention discloses a solar heat utilization optimization method of a heat collector, heat collector equipment and a computer device. The method comprises the following steps: predicting radiation characteristics of suspended nanoparticles based on an artificial neural network model by utilizing a boundary element method; parameters of the heat collector are optimized through a genetic algorithm, and the radiation characteristics of the suspended nanoparticles are evaluated; constructing a heat collector structure optimized by the genetic algorithm in the finite volume method simulation framework, and verifying the rationality of parameters of the heat collector structure; preparing a ternary mixed nano suspension, and verifying the stability of the ternary mixed nano suspension; a heat collector device is prepared based on the ternary mixed nano suspension, a sensor network is arranged in the heat collector device to continuously collect data, the solar heat utilization rate of the heat collector device is determined according to the data, and the data is uploaded to an upper computer to be managed and analyzed. Optimization and performance improvement of the solar heat collector equipment are achieved, and the thermal performance of the heat collector equipment is improved.
Owner:HARBIN INSTITUTE OF TECHNOLOGY (SHENZHEN) (INSTITUTE OF SCIENCE AND TECHNOLOGY INNOVATION HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN)

Solar large flat plate collector with cleaning function

The invention relates to the technical field of solar energy, in particular to a solar large flat plate collector with a cleaning function, which comprises a collector glass cover plate, a mounting structure is arranged outside the collector glass cover plate, and a first cleaning mechanism and a second cleaning mechanism for cleaning the collector glass cover plate are arranged on the mounting structure. The first cleaning mechanism and the second cleaning mechanism are used in cooperation. And the first cleaning mechanism comprises two rollers. According to the solar large flat plate collector with the cleaning function, the rollers are driven by external power to rotate, the wiping cloth can be easily replaced by the two rollers through the coordinated action of winding and unwinding, the whole process is easy to operate, complex disassembly and assembly steps are not needed, the time needed for replacing the wiping cloth is shortened, and the cleaning efficiency is improved. The continuous use efficiency of the equipment is improved, the wiping cloth can better play a cleaning role in the wiping process, and the cleaning effect on stains and dust on the glass cover plate is enhanced.
Owner:SUNSKY SOLAR ENERGY CO LTD

Solar heat collector based on flat plate micro heat pipe

The invention discloses a solar heat collector based on a flat plate micro heat pipe, and relates to the technical field of solar heat utilization, the solar heat collector comprises a heat collection box body, a heat collection pipe and the flat plate micro heat pipe, the heat collection box body is obliquely arranged on the ground; the heat collecting pipe is arranged in the heat collecting box body, the two ends of the heat collecting pipe are arranged on the two sides of the heat collecting box body, one end of the heat collecting pipe is a water inlet, and the other end of the heat collecting pipe is a water outlet. The flat plate micro heat pipes are arranged at intervals along the axis of the heat collecting pipe, and each flat plate micro heat pipe comprises an evaporation section and a condensation section; the condensation section is in an arc shape and is arranged on the peripheral side of the heat collection pipe in an attached mode, the circle center of the condensation section is located on the axis of the heat collection pipe, and the condensation section heats the heat collection pipe; the evaporation section is positioned below the condensation section; the method has the effect of improving the heat conduction efficiency.
Owner:SHANXI GONGDA HUIYI ENERGY TECHNOLOGY CO LTD +1

Photo-thermal generator set and molten salt heat storage coupling intelligent debugging device and method

The invention discloses a photo-thermal generator set and molten salt heat storage coupling intelligent debugging device and method, and the device comprises a multi-dimensional parameter sensing module, a digital twinborn collaborative decision module, a self-adaptive execution regulation and control module, and a safety early warning feedback module. The multi-dimensional parameter sensing module is used for collecting the heat collector outlet temperature, the working medium flow and the steam turbine steam inlet parameter of the photo-thermal generator set and collecting the heat storage tank temperature gradient, the fused salt flow, the pump set pressure, the pipeline wall temperature and the corrosion rate parameter of the fused salt heat storage system in real time. The digital twinborn collaborative decision-making module is connected with the dimension parameter sensing module; a digital twinborn model constructed based on a photo-thermal-heat storage coupling mechanism is arranged in the digital twinborn collaborative decision-making module, and the digital twinborn model performs dynamic updating by receiving real-time data of the multi-dimensional parameter sensing module and outputs optimal debugging parameters in combination with a pre-trained deep learning prediction model.
Owner:青岛华晨伟业电力科技工程有限公司

Heat transfer device for high heat flux applications and related methods thereof

A device and related method that provides, but is not limited thereto, a two-phase heat transfer device with unique combination of enhanced evaporation and increased cooling capacity. An advantage associated with the device and method includes, but is not limited thereto, increased cooling capacity per unit area, controlled and optimized evaporation, prevention of boiling, and prevention of drying of the evaporator. An aspect associated with an approach may include, but is not limited thereto, using a non-wetting coating or structure to keep working fluid away from the spaces between elongated members of an evaporator and using a wetting coating or structure to form thin films of working fluid around the distal region of the elongated members. For example it can be used to cool a computer chip, a skin of a hypersonic flying object, parabolic solar collector, turbine or engine blade, or any other heat source that requires high heat flux.
Owner:UNIV OF VIRGINIA PATENT FOUND

Solar environmental control system, apparatus, and method relating thereto

A solar environmental control system includes a solar powered apparatus and a heat transfer apparatus. The solar collection apparatus includes a solar collector for absorbing solar energy, a heat storage medium, and a generator. A heat transfer fluid circulates between the solar collector, the heat storage medium, and the generator.
Owner:UNIVERSITY OF NORTH TEXAS

All-climate thermal management system and method for energy storage power station with cross-seasonal energy storage device

The invention relates to the field of battery thermal safety management, in particular to an all-weather thermal management system and method for an energy storage power station with a cross-seasonal energy storage device. Through combined operation of the refrigerant circulation loop, the circulating water loop, the switch valve group, the multi-cavity heat exchanger, the water storage tank, the energy accumulator, the photovoltaic heat collector and the resistance wire heater, heating or cooling of the battery module in the prefabricated cabin of the energy storage power station is achieved. According to the invention, the requirements of battery heating / cooling and temperature consistency control under all-weather working conditions are effectively ensured; meanwhile, cross-seasonal energy storage and waste heat utilization can be achieved, energy loss is avoided, the energy utilization efficiency is improved, and the purpose of reducing heat management energy consumption is achieved.
Owner:QINGDAO UNIV OF TECH

Hybrid heat pump system

The invention relates to the technical field of heat pumps, and particularly discloses a hybrid heat pump system which comprises a heat source input module, a heat pump circulation module, an energy storage regulation and control module, a flow control module and a central control module. The heat source input module comprises an air source heat exchanger, a ground source heat exchanger and a solar heat collector which are connected in parallel; each heat source outlet is communicated with an evaporator inlet of the heat pump circulation module through a capacity adjusting valve; the heat pump circulation module is a closed loop formed by sequentially connecting a compressor, a condenser, an expansion valve and an evaporator through a refrigerant pipeline; according to the method, the dynamic weight distribution algorithm is set, fuzzy logic and a reinforcement learning model are combined, and the heat source contribution proportion of an air source, a ground source and solar energy is optimized in real time, so that full application of high heat contribution intervals of various heat sources, maximization of system energy efficiency and accurate control of operation cost are realized; and through the arrangement of synchronous control over the rotating speed of the phase change energy storage unit and the rotating speed of the compressor, the economical efficiency of energy utilization is remarkably improved.
Owner:HYDROGEOLOGY BUREAU OF CHINA COAL GEOLOGY ADMINISTRATION

Solar energy and biomass energy coupled combined heat and power generation system

The utility model relates to a solar energy and biomass energy coupled combined heat and power generation system which comprises an air preheater, a biomass boiler, a PV / T, a solar vacuum tube collector, a first-stage organic Rankine cycle assembly, a second-stage organic Rankine cycle assembly and a jet type refrigeration cycle assembly. A fluid outlet of the PV / T is connected with a fluid inlet of the solar vacuum tube collector, a smoke outlet of the biomass boiler is connected with a hot fluid inlet of the air preheater, and a cold fluid outlet of the air preheater is connected with an air inlet of the biomass boiler. According to the utility model, by designing a two-stage organic Rankine cycle structure, solar energy and biomass energy are better coupled, and the stability of the system is improved.
Owner:MINJIANG UNIVERSITY

Photovoltaic photo-thermal coordinated utilization system

The invention provides a photovoltaic photo-thermal coordinated utilization system, which comprises two modular integrated structures: a tubular assembly integrated system is composed of a plurality of tubular assemblies connected in parallel, and is sequentially provided with a packaging protection layer, a flexible semitransparent photovoltaic cell layer, a selectable spectrum selective functional layer, a heat collection tube and a heat collection medium from outside to inside; the stacked photovoltaic-heat collector system sequentially comprises a rigid semitransparent photovoltaic battery assembly layer, a supporting frame, a tubular heat collector array and the like from top to bottom. Through a spectrum gradient utilization mechanism, visible light is used for photovoltaic power generation, infrared light and ultraviolet light are used for photo-thermal collection, dynamic energy distribution is achieved in combination with a coordination control system, the comprehensive efficiency per unit area can be improved to 80% or above, and the system is suitable for multiple scenes such as household hot water and industrial heat supply and has high weather resistance and economical efficiency.
Owner:CHINA HUADIAN ENG CO LTD +1

Intelligent energy efficiency management method and system for solar photo-thermal-photovoltaic-heat pump coupling system

The invention provides an intelligent energy efficiency management method and system for a solar photo-thermal-photovoltaic-heat pump coupling system. The method comprises the steps that coupling energy state vectors including photovoltaic power generation real-time output power, the hot air temperature of an air duct outlet of a solar heat collector, the operation frequency of a heat pump compressor and the water temperature of the middle of a heat storage water tank are constructed; dynamically calculating a continuous discriminant quantity and a discrete risk sign based on the vector so as to evaluate the supply and demand trend and the energy efficiency risk of the system; generating a multi-path combined control strategy covering an electric side link, a photo-thermal link, a heat pump link and a heat storage link, and performing effective filtering on a control command in combination with an equipment state inspection result; and finally, executing instructions are issued in stages according to path priorities, so that closed-loop energy efficiency adjustment is realized. According to the invention, the cooperation efficiency and the operation safety of the multi-energy coupling system are improved.
Owner:GUANGDONG NEW ENERGY TECH DEV

Solar-driven split type multi-combined-supply central air-conditioning system

The utility model discloses a split type multi-combined supply central air-conditioning system driven by solar energy, and belongs to the technical field of cooling and heating equipment. The system comprises a lithium bromide absorption refrigeration type host, a solar heat collector, a refrigeration water tank, a heating water tank, a plate heat exchanger, a fuel cell, a cooling tower, a wall-hanging stove and a fan pipe disc, wherein the lithium bromide absorption refrigeration type main machine absorbs heat energy provided by solar energy through lithium bromide, and the circulation process of refrigeration or heating is completed; water is heated by solar energy absorbed by the solar heat collector and fed into the heating water tank through a pipeline to be heated by the system. The plate heat exchanger is responsible for heat exchange between the lithium bromide absorption refrigeration host and the heating water tank; the fuel cell supplies power to the system, and the wall-hanging stove assists in heating the heating water tank. The cooling tower is used for dissipating heat of the lithium bromide absorption refrigeration host; cold water in the refrigeration water tank is dissipated into a room in an air mode through the fan pipe disc so that the system can conduct refrigeration.
Owner:ANHUI UNIV OF SCI & TECH

Multi-energy complementary optimization design method for negative carbon ecological building

The invention belongs to the technical field of building energy, and discloses a multi-energy complementary optimization design method of a negative carbon ecological building. Comprising the following steps: according to environment monitoring data and building geometric data of a target building site, constructing a hourly output characteristic spectrum of a photovoltaic module and a photo-thermal collector at the building site scale; extracting an output space-time correlation mode of the photovoltaic module and the photo-thermal collector based on the hourly output characteristic spectrum; according to the matching relationship between the output space-time correlation mode and the building energy load demand, combining the available area constraint of the target building site to construct a space arrangement scheme; evaluating the negative carbon performance index of the building according to the spatial arrangement scheme and the carbon emission in the whole life cycle of the building; outputting a multi-energy complementary optimization design scheme of the building site; according to the invention, the real carbon negative target of the building from building materials to the whole life cycle of operation is realized, and the energy utilization efficiency and the carbon emission reduction stability are obviously improved under the working conditions of all climate and full frequency band.
Owner:CHINA RAILWAY CONSTRUCTION ENGINEERING GROUP +2

System for measuring high-temperature infrared emissivity of solar thermal collector

The invention discloses a system for measuring high-temperature infrared emissivity of a solar heat collector, which relates to the technical field of emissivity measurement and is technically characterized in that the system realizes uniform distribution of surface temperature of a sample through a micro-nano structure solar heat collection heating module, and covers a high-temperature range of 100-1200 DEG C in combination with PID temperature control and a rotating platform; an optical chopper is used for modulating the frequency of an optical signal, and a lock-in amplifier is combined to extract a weak signal, so that the signal-to-noise ratio is improved to 105 magnitude, and radiation intensity detection as low as 10 <-3 > W / cm < 2 >. Sr. Mu m is supported; the system also ensures that the standard radiation module realizes traceability transmission of temperature and radiation intensity by periodically calibrating the standard black body and the auxiliary black body, and ensures that the measurement error is less than or equal to + / -1%; the Fourier infrared spectrometer covers the wave band of 0.8-25 microns, a beam splitter and a refrigeration type detector are combined, the spectral resolution reaches 0.5 cm <-1 >, and complex spectral characteristics at high temperature can be accurately analyzed.
Owner:HUBEI POLYTECHNIC UNIV

Mixed nanofluid heat transfer characteristic analysis method based on molecular dynamics

The invention relates to the technical field of nanofluid enhanced heat transfer simulation, in particular to a molecular dynamics-based mixed nanofluid heat transfer characteristic analysis method, which comprises the following steps of: constructing a molecular model comprising copper, graphene nanoparticles and an ionic liquid / water mixed base solution, and calculating the heat transfer characteristic of the mixed nanofluid through a distribution potential function and a periodic boundary condition; and performing energy minimization and molecular dynamic relaxation to achieve thermodynamic equilibrium. A steady-state temperature gradient is established based on the unbalanced molecular dynamics principle, and the thermal conductivity is calculated according to the Fourier law. Microcosmic parameters such as a radial distribution function, mean square displacement and the number of hydrogen bonds are synchronously analyzed, and a coupling mechanism of interaction and heat transfer performance of the nano-particle-base fluid interface is disclosed. According to the method, the heat transfer characteristic of the mixed nanofluid can be clarified on the molecular scale, and an efficient and reliable analysis means is provided for nanofluid screening and design in application of a solar heat collector, a heat management system and the like.
Owner:KUNMING UNIV OF SCI & TECH

Extending pet excrement collector device

An extending pet excrement collector device including a telescoping assembly, a support assembly and a lighting assembly. The telescoping assembly includes a handle grip. The telescoping assembly includes a telescopic rod. The telescopic rod has a plurality of rods and a plurality of interlock sections. The telescopic rod can extend and retract using the plurality of rods telescopically connected, the telescopic rod can be folded using the plurality of interlock sections placed at the ends of the rods. The support assembly includes a coupling end and a bag. The coupling end is capable of configuring and maintaining the angle of the support assembly. The bag surrounds the support assembly to collect the feces pet. The lighting assembly includes a housing, a light emitter and a button. The light emitter is turned on and turned off by the configuration of the button to light up a darkened area.
Owner:MASON TYRONE

Heat collection-heat storage system flow regulation and control method for improving flexibility of light-coal-storage complementary power generation system

The invention discloses a heat collection-heat storage system flow regulation and control method for improving the flexibility of a light-coal-storage complementary power generation system. The light-coal-storage complementary power generation system comprises a coal-fired power generation unit and a heat collection-heat storage system. With the control targets of coping with solar fluctuation and meeting the rapid load change requirement of the light-coal-storage complementary power generation system, the actual value of the mass flow of a working medium on the heat collector side is calculated and adjusted by collecting the solar radiation intensity and the operation data of the light-coal-storage complementary power generation system; the change rate of the water supply mass flow entering the working medium-water heat exchanger is calculated on line according to the variable quantity required by the working capacity of unit steam, and the actual value of the water supply mass flow entering the working medium-water heat exchanger and the actual value of the working medium mass flow of the working medium-water heat exchanger side are adjusted; and after the variable load instruction is finished, a model prediction control algorithm is adopted to update the actual values of the feed water mass flow entering the working medium-water heat exchanger and the working medium mass flow on the working medium-water heat exchanger side. The method can improve the operation flexibility of the system and is simple to operate.
Owner:XI AN JIAOTONG UNIV