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168results about How to "Stable working temperature" patented technology

Process and apparatus for continuous flow synthesis of nanocrystals

Novel reactor, systems and methods of preparing nanocrystals in a continuous flow-through process are provided. The novel reactor is highly configurable and can be modified to achieve desired reaction times of a flow through mixture. The reactor is designed to provide uniform, efficient heating of the reaction mixture.
Owner:LIFE TECH CORP

Steam stalk moistening method and equipment for implementing same

The invention provides a tobacco stalk pre-processing method and tobacco stalk pre-processing equipment which can shorten the water permeability time of the tobacco stalk, ensure consistent moisture of the soaked tobacco stalk, save the storage process of the moistening of the tobacco stalk and simplify the process flow. The method comprises the following steps of: feeding a tobacco stalk material into a screw conveyer which is filled with steam and keeps proper pressure and proper temperature; continuously feeding the tobacco stalk material into the screw conveyer through a feeding vapor lock; continuously discharging the tobacco stalk material through a discharging vapor lock; and increasing the moisture and the temperature of the tobacco stalk to meet the requirements of the stalk pressing and cutting process on the discharging temperature and the moisture. The equipment comprises a bearing screw conveyer with a steam inlet and a water drainage port; a feed port and a discharge port of the screw conveyer are provided with the feeding vapor lock and the discharging vapor lock respectively; and the feeding vapor lock is provided with a water replenishing port. The water permeability of the tobacco stalk is improved by increasing the pressure and the temperature of the moistening environment of the tobacco stalk, so that the method and the equipment shorten the water permeability time of the tobacco stalks, quickly realize the pre-processing effect of the moistening of the tobacco stalk, save the storage process of the moistening of the tobacco stalk and greatly simplify the process flow of the stalk processing.
Owner:ZHISI HLDG GRP

Application device for driving aromatherapeutic particles

An application device for driving aromatherapeutic particles, in that the application device provides safe and constant temperatures for activating aromatherapeutic particles through a medium material having a high evaporation temperature, such that aromatherapeutic particle elements having intact and complete structures are evenly liberated and released. The application device comprises a heating device having an operating temperature which disengages aromatherapeutic particles and is lower than an evaporation temperature of a fragrance discharging body. The heating device indirectly heats the aromatherapeutic particles of the herbal material contained in the medium, and achieves a constant temperature through self-heat-exchange of the medium while also liberates the aromatherapeutic elements. Thereby, the aromatherapeutic particles maintained with intact and complete structures are discharged outwards using heat circulation, and are released With stable amounts.
Owner:WU CHIA HSIUNG

Circuit and method for driving light source

A driving circuit for a light source is provided. The circuit is suitable for a light source with a plurality of light emitting diodes (LED). The circuit includes a first pulse width modulation (PWM) unit and a power conversion unit. The first PWM unit generates a first PWM signal. The power conversion unit generates a driving voltage signal for controlling the light source to perform forward bias operation or reversed bias operation according to the duty cycle of the first PWM signal.
Owner:BEYOND INNOVATION TECH

Enclosed cavity type heat exchanger

The invention provides a closed chamber typed heat exchanger, belonging to the heat energy exchange technical field. The closed chamber typed heat exchanger is characterized in that a hole plate is sealed with two ends and the circumference of a cylindrical shell which is horizontally arranged; a cold fluid heat exchange pipe bundle and a hot fluid heat exchange pipe bundle pass through the hole plate and are sealed to form a chamber body; the cold fluid heat exchange pipe bundle and the hot fluid heat exchange pipe bundle are respectively arranged in the upper space and the lower space of the chamber body; a vacuum-shaped closed chamber is filled with working media; the internal chambers of the cold fluid heat exchange pipe bundle and the hot fluid heat exchange pipe bundle are communicated with a cover with a connecting pipe at two ends so as to respectively form an independent fluid passage; an installation supporter is welded externally below the cylindrical shell; the closed chamber of the cylindrical shell can be provided with a plurality of structural types such as single body, double bodies or three bodies; the closed chamber typed heat exchanger has the active effects that the heat exchanger is not a pipe shell typed heat exchanger in traditional meaning and has the advantages of simple structure, fast response, convenient heat control, high heat transmission efficiency and obvious energy-saving effect. The heat exchanger can be applied to heat transmission places with low, middle and high temperature, and is an extremely practical invention.
Owner:上海释皆通生物科技有限公司

Minisize highly-effective thermal self-circulation cooling system for fuel cell

The invention provides a fuel cell micro high-efficiency thermo-operated self-circulating cooling system, comprising: bipolar plate whose inner cavity is provided with microchannel evaporator, and condenser tube, where the condenser tube is connected with the microchannel via inlet and outlet micro check valves having one-way turn-on function, and there is circulating cooling medium inside the condenser tube and the microchannel, and according to the requirement for cooling and heat discharge, the condenser tube is also provided with heat radiation fins, and connected with cooling working medium storage cylinder. And it has good heat radiation effect, simpler structure and higher total utilization ratio of cell stack, and applies to low temperature fuel cell stacks such as PEMFC, and DMFC.
Owner:SOUTH CHINA UNIV OF TECH

Electrolyte storage box for metal-air cell system

The invention discloses an electrolyte storage box for a metal-air cell system. The electrolyte storage box is connected to an electrolyte chamber of the metal-air cell system. The electrolyte storage box is a hollow container. In the electrolyte storage box, a product isolation baffle plate and a product filter screen are orderly arranged from left to right. The hollow container is divided into a product chamber, an electrolyte / product mixing chamber and an electrolyte chamber mutually independent by the product isolation baffle plate and the product filter screen. The product chamber is connected to an electrolyte cycle opening arranged at the upper part of the electrolyte chamber of the metal-air cell system by a pipe. The electrolyte chamber is connected to an electrolyte feeding inlet at the lower part of the electrolyte chamber of the metal-air cell system by a pipe. The management system of the metal-air cell system has the advantages that 1, products can be fully precipitated and grading-filtered, 2, the products can be momentarily discharged, 3, heat in the cell can be timely discharged with the discharged products, and 4, availability of a cell anode plate can be improved.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI

Lithium-ion battery pack heat dissipation system

The invention discloses a lithium-ion battery pack heat dissipation system which comprises a battery box, a battery pack, side sealing plates for forming sides of the battery box and end face plates for forming the upper end face and the lower end face of the battery box. A hollow heat exchange plate is arranged in the battery box and divides the battery box into a plurality of battery accommodating chambers, each heat exchange plate in the battery box is connected to be a whole to form a heat exchange device, hollow parts between the heat exchange plates are filled with condensation mediums and are communicated with each other, the heat exchange device is connected with an external compressor and a condensation medium storage tank, and a condensation circulation loop is formed. By adoption of the heat exchange plate and the condensation mediums, heat generated by the battery pack in the battery box can be dissipated quickly, so a battery cell in the battery pack can maintain a stable working temperature, and comprehensive properties of the battery are ensured. The heat dissipation system is simple in structure and principle and can work stably for a long time, and maintenance costs at a later period are reduced.
Owner:DEYANG JIUDING ZHIYUAN INTPROP OPERATION CO LTD

Wind power high temperature electrolytic hydrogen preparation system and method

The invention provides a wind power high temperature electrolytic hydrogen preparation system and a method. The system comprises a direct current power source, an alternating current power source, a high temperature super hot water vapor preparation unit, an auxiliary heat storage unit, a high temperature electrolytic hydrogen preparation unit and a heat exchange unit. The direct current power source rectifies alternating currents of a wind turbine generator system (WTGS) into direct currents of first voltage; the alternating current power source rectifies alternating currents of the WTGS into alternating currents of a second voltage; the high temperature super hot water vapor preparation unit prepares super hot water vapor based on the alternating currents of the alternating current power source; the auxiliary heat storage unit receives the alternating currents of the alternating current power source to store energy; the high temperature electrolytic hydrogen preparation unit utilizes direct current of the direct current power source to electrolyze the super hot water vapor prepared by the high temperature super hot water vapor preparation unit to prepare hydrogen; and the heat exchange unit exchanges heat in the high temperature electrolytic hydrogen preparation unit and the auxiliary heat storage unit so that the high temperature electrolytic hydrogen preparation unit is maintained at a stable temperature. When the alternating current voltage output by the alternating current power source is reduced apparently, the auxiliary heat storage unit supplies stored energy to the high temperature super hot water vapor preparation unit, so that the high temperature super hot water vapor preparation unit outputs super hot water vapor stably.
Owner:BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD

Low-temperature liquid vaporization cooling capacity recovery utilization system

The invention provides a system for recycling vaporized cold quantities. The system can recycle the vaporized cold quantities of a cryogenic liquid with a higher energy utilization rate, and comprises an air-bath carburetor (3) connected with a cryogenic liquid tank (1), and a vaporized gas outlet of the cryogenic liquid (7). The system is characterized in that a water-bath carburetor (2) is connected in parallel at both ends of the air-bath carburetor (3), and a sink (4) of the water-bath carburetor (2) is connected with technological equipment (5) through a circulating water pump (6), a valve, a water supply pipeline (8) and a backwater pipeline (9) to form a cooling water circulating system.
Owner:CHINA ELECTRONICS SYST ENG NO 2 CONSTR

Preparation method of edge-carboxylated graphene

The invention discloses a preparation method of carboxylated graphene. The method comprises the following steps of grinding graphite powder in the presence of supercritical carbon dioxide in a high-pressure millstone kettle. Through the preparation method, carboxyl-modified, especially edge-carboxyl-modified graphene can be directly obtained, the introduced carboxyl content can be controlled in arelatively wide range, and large-area edge-modified graphene can also be prepared.
Owner:CHINA PETROLEUM & CHEM CORP +1

Integrated energy supply product, preparation method thereof and device

The invention provides an integrated energy supply product. The product integrates a III-V thin film solar battery and an all-solid-state thin film lithium battery; the positive electrode of the solarbattery is connected with the positive electrode current collector of the lithium battery; the negative electrode of the solar battery is connected with the current collector of the negative electrode Li of the lithium battery; and the positive electrode current collector and negative electrode current collector of the lithium battery are connected with a load through wires. The invention also provides a preparation method of the energy supply product and a device for preparing the energy supply product. The device comprises a glove box; and a magnetron sputtering coating device, a vacuum evaporation device and a hot pressing device are integrated in the glove box. According to the energy supply product of the invention, the III-V thin film solar battery is adopted; the III-V thin film solar battery is provided with a light-weight flexible substrate; the overall thickness of the solar battery is smaller than 200 micrometers; the weight-to-area ratio of the solar battery is 300 g / m<2>and is much smaller than the weight-area ratio of a crystalline silicon battery; the all-solid-state thin film lithium battery is adopted, and is provided with a flexible substrate; the thickness of the entire energy supply product is smaller than 1 mm; and the energy supply product is flexible, light-weight and easy to carry.
Owner:DONGTAI HI TECH EQUIP TECH (BEIJING) CO LTD

Combined indoor heat dissipation type distribution box

The invention relates to the technical field of distribution box, in particular discloses a combined indoor heat dissipation type distribution box. The combined indoor heat dissipation type distribution box comprises a distribution box body and a door, a plurality of cabinets are arranged in the distribution box body, both sides of the distribution box body are provided with fixing plates, guide rails are arranged on the fixing plates, the lower two sides of every cabinet are provided with rolling wheels, a limitation block is arranged at the rear bottom surface of every cabinet, a connection piece is arranged at the front bottom surface of every cabinet, stoppers are arranged at the inner ends of the guide rails on the fixing plates and provided with limitation hooks, distribution components are arranged in every cabinet, conductive bus bars are respectively arranged outside every cabinet, an air inlet is arranged at the bottom of the distribution box body, an air outlet is arranged in the top of the distribution box body, a top hood is arranged at the upper end of the distribution box body, an exhaust hole is arranged on the side of the top hood, and an eddy fan is arranged corresponding to the air outlet in the center of the top hood. The combined indoor heat dissipation type distribution box can be used by being mounted in an E-HOUSE (electrical housing). The combined indoor heat dissipation type distribution box has the advantages of mounting, demounting and maintenance convenience and good heat dissipation effects.
Owner:ZHEJIANG UNION POWER ELECTRICITY

Dispersed Bubble Reactor For Enhanced Gas-Liquid-Solids Contact And Mass Transfer

An apparatus to promote gas-liquid contact and facilitate enhanced mass transfer. The dispersed bubble reactor (DBR) operates in the dispersed bubble flow regime to selectively absorb gas phase constituents into the liquid phase. The dispersion is achieved by shearing the large inlet gas bubbles into fine bubbles with circulating liquid and additional pumped liquid solvent when necessary. The DBR is capable of handling precipitates that may form during absorption or fine catalysts that may be necessary to promote liquid phase reactions. The DBR can be configured with multistage counter current flow sections by inserting concentric cylindrical sections into the riser to facilitate annular flow. While the DBR can absorb CO2 in liquid solvents that may lead to precipitates at high loadings, it is equally capable of handling many different types of chemical processes involving solids (precipitates / catalysts) along with gas and liquid phases.
Owner:THE SOUTHERN CO

Passive remote sensing technique-based monitoring system and method of tail gas of ships at plurality of berths in harbour

The invention belongs to the technical field of optical measuring, and more specifically relates to a passive remote sensing technique-based monitoring system and a method of tail gas of ships at a plurality of berths in a harbor. The passive remote sensing technique-based monitoring system comprises a rotary platform, a telescope, a camera, a middle shaft, a spectrometer, and a computer; the telescope and the camera are provided with a same angle of visual field; measuring of spectrum signals at horizontal and vertical angles of a monitored range can be realized under controlling using the computer, an area without ship tail gas pollution is taken as a background value, and spectral analysis is adopted to obtain differential optical thickness and obtain the distribution situations of gasto be detected in the plane; spectrum signals received by the telescope are combined with smoke plume and sky cloud layer situations recorded by the camera, data with relatively large difference caused by cloud layers are selected via screening, and the accuracy of measured results is verified based on smoke plume distribution situations in images. The passive remote sensing technique-based monitoring system and the method can be used for reflecting the ship tail gas plane concentration distribution images of a whole harbor through contrast analysis on spectral analysis result and image contrast analysis at different view fields, and realizing rapid determination of ships with relatively high tail gas concentration in the harbor.
Owner:FUDAN UNIV

Heat management system for electric locomotive traction converter

The invention discloses heat management system for an electric locomotive traction converter. The heat management system comprises a cooling tower, an evaporator and an internal circulation draught fan. The cooling tower and a converter cabinet of the electric locomotive traction converter are connected into a whole. The evaporator and the internal circulation draught fan are installed in the converter cabinet. The cooling tower is provided with a compressor and a condenser. The compressor is connected with the condenser through a pipeline, refrigerant in the pipeline is compressed into high-temperature and high-voltage steam, and the heat is dissipated to the environment through the condenser. The refrigerant becomes high-temperature and high-voltage liquid and then is divided into two paths. One path of liquid enters a heat dissipation device of a power device in the converter cabinet and becomes a low-temperature and low-voltage gas-liquid mixing state to absorb heat. The other path of liquid enters the evaporator, and the internal circulation draught fan faces the evaporator so as to blow cold air into the converter cabinet. The heat management system has the advantages that the integral heat exchanging efficiency of the converter is improved, and the working temperature is reduced and is stable and is not affected easily by the outside environment.
Owner:CSR ZHUZHOU ELECTRIC LOCOMOTIVE RES INST

Unmanned aerial vehicle energy supply platform of multiple energy supply system and operating method of unmanned aerial vehicle energy supply platform

The invention discloses an unmanned aerial vehicle energy supply platform of a multiple energy supply system and an operating method of the unmanned aerial vehicle energy supply platform. The unmannedaerial vehicle energy supply platform comprises a navigation mark platform, an energy collection module, an energy storage module, a wireless charging module, an unmanned aerial vehicle platform anda management system, wherein the energy collection module comprises a solar power generation module, a wind power generation module, a fuel cell module and a water flow energy power generation module;the unmanned aerial vehicle platform is arranged at the top of the navigation mark platform; the wireless charging module used for charging an unmanned aerial vehicle is arranged in the unmanned aerial vehicle platform; and a storage battery of the battery module is connected with the wireless charging module to provide charging service for the unmanned aerial vehicle. According to the unmanned aerial vehicle energy supply platform and the operating method, the construction cost of base stations and unmanned aerial vehicle mother ships can be reduced, and meanwhile, the problem of endurance of the unmanned aerial vehicle is effectively solved; the mode of solar energy-wind energy-water flow energy joint power supply is adopted, so that the problems of stability and capacity of the power supply to the navigation mark are solved; meanwhile, the applied thermal management design can obviously improve the environmental adaptability of the battery module; and by means of the operating method, the safe, reliable and efficient operation of the navigation mark platform is ensured.
Owner:XI AN JIAOTONG UNIV

Wireless ad hoc network-based wireless repeater

The invention discloses a wireless ad hoc network-based wireless repeater, which comprises a processor, a signal receiving unit, a signal data replication unit, a signal screening unit, a signal adjustment unit, a signal transmitting unit, a lightning-proof surge unit, a voltage stabilizing unit and a constant temperature control unit, wherein each functional unit is connected with the processor respectively; and the signal adjustment unit comprises a filter circuit, a signal attenuation compensation circuit, a signal error correction circuit and a signal amplifying circuit. According to the wireless repeater, the lightning-proof surge unit, the voltage stabilizing unit and the constant temperature control unit are arranged in the wireless repeater, so that lightning strike can be effectively prevented, stable working voltage and working temperature can also be provided for an internal circuit of the repeater, a stable working environment is provided for each circuit element for constituting the control circuit, a better protection effect on the repeater is realized, the environmental adaption capacity of the repeater is improved, and the service life of the repeater is prolonged.
Owner:成都泰格微电子研究所有限责任公司

Temperature compensation type oscillator capable of remaining constant temperature

The invention relates to a temperature-compensating oscillator device which can keep the temperature constant. The oscillator device comprises a shell, a circuit board arranged inside the shell, a suspended temperature-compensating oscillator arranged on the circuit board and a heating control circuit arranged on the circuit board. The shell is vacuumed and is provided with a plurality of conductive platforms at intervals for jointly supporting the circuit board and a plurality of exposed conductive connection points which are electrically connected with one end of the conductive platforms so as to electrically connect each conductive connection point with the circuit board by each conductive platform. By virtue of the high erection of the circuit board and the small contact area between the circuit board and conductive platform, the thermal conduction of the heat generated by the heating control circuit to the shell is reduced; in addition, the vacuumed shell can effectively eliminate thermal convection and function as a thermal radiation blocking layer by being matched with a gold-plated layer on the surface of the shell, thus guaranteeing that the interior of the shell stays at the constant temperature status. The temperature-compensating oscillator device can effectively reduce thermal conduction and block the thermal convection, thus keeping the temperature-compensating oscillator at stable working temperature, and being rather practical.
Owner:TAITIEN ELECTRONICS

Temperature controller of small semiconductor laser

The invention adopts comparison circuit to build temperature control circuit. It consists of four parts that are temperature sampling, temperature setting, temperature comparison and control, and temperature adjustment. It is different from the temperature control devices adopting pulse width modulator, D / A conversion and feedback analogue circuit. The invention can adjust working temperature of laser within 20-30deg.C, temperature error is less than or equal to minus or plus 1deg.C.
Owner:SHANGHAI DAHENG OPTICS & FINE MECHANICS

Combustible harmful gas detector capable of eliminating temperature drift

The invention provides a combustible harmful gas detector capable of eliminating a temperature drift. The detector comprises a housing, a temperature feedback control circuit, a gas sensitive sensor and a sampling resistor, wherein the temperature feedback control circuit is connected with the heating wire RH of the sensitive sensor; and the sampling resistor is connected in series with a sensitive resistor RS of the gas sensitive sensor. The combustible harmful gas detector has the beneficial effects that by the temperature feedback control circuit, sensor heating voltage can be automatically adjusted along with the change of environmental temperature, so as to guarantee a stable working temperature of a sensitive material of the sensor and eliminate influence on the precision of the sensor due to the temperature drift. In different external environments, the temperature drift characteristic of a conventional metal oxide semiconductor gas sensitive sensor can reduce the detection precision. The combustible harmful gas detector integrated with the temperature feedback control circuit can well solve the problem; the reliability of a detection result of the detector is much higher than that of a detection device without temperature compensation, and the detection error is reduced from original -40 percent to +70 percent to + / - 10.
Owner:CIVIL AVIATION UNIV OF CHINA

Semiconductor laser temperature controller

A semiconductor laser temperature controller comprises a precision reference source, a temperature sampling unit, a temperature setting unit, a temperature error amplifying unit, a sawtooth wave generator, a PWM (pulse width modulation) signal generator and a power conversion stage, the precision reference source supplies precision reference voltage to the temperature sampling unit and the temperature setting unit, the temperature sampling unit and the temperature setting unit output signals and input the error signal between the actual temperature generated by the temperature error amplifying unit and set temperature, the error signal and the sawtooth wave generated by the sawtooth wave generator are simultaneously inputted into the PWM signal generator, so that a pulse width modulation signal is generated, and therefore the voltage output of the power conversion stage is controlled to drive a semiconductor chilling plate TEC to control temperature. The semiconductor laser temperature controller has the advantages of simple structure, high efficiency and low cost, realizes a temperature control function, and can regulate the stable operating temperature of a semiconductor laser according to needs, and the temperature error is less than or equal to positive or negative 0.5 DEG C.
Owner:CHANGCHUN CST OPTICS & FINE MECHANICS

Piston engine valve timing and variable lift driving system

The invention discloses a piston engine valve timing and variable lift driving system. On the basis of the shear thickening fluid critical speed phase change characteristic and the cam speed change curve driving rule, the effective length of a shear thickening tappet changing in the same direction as change of rotation speed of a cam is adaptively obtained according to the change of the rotation speed of the cam (or the rotation speed of an engine), the opening advance angle, the lift and the closing delay angle of a valve are automatically adjusted, and thus the dynamic property, the strengthening degree, the low temperature startability, the low speed stability, the economical efficiency and the exhaust cleanliness of the engine are improved. According to the technical scheme, the system is free of electronic control, simple in mechanical structure, reliable in work, convenient to arrange, low in cost, easy to maintain, smooth in engine power output and capable of being widely applied to driving valves of various piston engines.
Owner:范永建

Butterfly type packaging semiconductor laser heat sink apparatus

The invention provides a butterfly type packaging semiconductor laser heat sink apparatus. The apparatus comprises a heat sink base plate and a heat dissipation platform, wherein installation holes are arranged at four corners of the heat sink base plate, the installation holes are used for fixing a PCB and a support part, the position, which is used for welding a butterfly type packaging semiconductor laser, of the PCB is hollow, the heat dissipation platform is disposed between the heat sink base plate and the abdomen of the butterfly type packaging semiconductor laser, the heat dissipation platform is in a hollow form, and the heat dissipation platform is provided with four installation holes. Through combination of the heat sink base plate and the heat dissipation platform, the heat dissipation efficiency is improved, the thermal conductivity is high, the work temperature of the butterfly type packaging semiconductor laser is stable, the heat sink material is light aluminum, the volume is small, the weight is small, the structure is simple, the installation is convenient, the weight of overall heat sink is quite small, and the requirement of such special occasions as aerospace and the like for light weight is satisfied.
Owner:BEIJING INFORMATION SCI & TECH UNIV

System and Method for Purifying Vanadium Pentoxide

The present invention provides a system and method for purifying vanadium pentoxide. Industrial grade vanadium pentoxide is converted to vanadium oxytrichloride by low temperature fluidizing chlorination, wherein chlorinating gas is preheated via heat exchange between fluidizing gas and chlorination flue gas, and an appropriate amount of air is added to enable a part of carbon powder to combust so as to achieve a balanced heat supply during the chlorination, thereby increasing the efficiency of chlorination and ensuring good selectivity in low temperature chlorination. The vanadium oxytrichloride is purified by rectification, and then subjected to plasma oxidation, thereby obtaining a high-purity vanadium pentoxide product and chlorine gas. The chlorine gas is returned for low temperature chlorination. The system and method have advantages of favorable adaptability to raw material, no discharge of contaminated wastewater, low energy consumption and chlorine consumption in production, stable product quality, etc.
Owner:INST OF PROCESS ENG CHINESE ACAD OF SCI +1

Light energy, wind energy and geothermal energy comprehensive utilization device

The invention provides a light energy, wind energy and geothermal energy comprehensive utilization device which comprises storage batteries, a controller, an inverter, an ammeter, a fan, a photovoltaic plate, a heat exchanger, a ground source or water source well, a heat pump, an intelligent control system and terminals; the fan and the photovoltaic plate are connected with the controller; the controller is in reversible connection with the storage batteries and is sequentially connected with the inverter and the ammeter; the ammeter is connected with the heat exchanger, the heat pump and the intelligent control system respectively; the fan is connected with the photovoltaic plate and the intelligent control system respectively; the photovoltaic plate is connected with the heat exchanger and the intelligent control system respectively; the heat exchanger is connected with the ground source or water source well and the intelligent control system; the terminals are connected with the heat pump the intelligent control system respectively; the heat pump is connected with the intelligent control system; the terminals are users with the quantity of Ni. The light energy, wind energy and geothermal energy comprehensive utilization device relates to a heat pump technology which is applied to light-electricity, light-heat, wind-electricity and wind-electricity-heat multi-energy complementation, composite transformation and comprehensive utilization.
Owner:CHANGCHUN SHENGHUO SCI & TECH DEV

Constant temperature dehumidifying high stable femtosecond laser

This constant-temp., moisture-removing and high stability femtosecond laser-device is characterized by: it has a water-cooling base, which water source is a common compresson refrigerator, or a semiconductor refrigerator, its temp. variation less than +(-)0.1 deg.C. All laser parts are fitted on said base in a sealed case, and equipped with electronic moisture-removor, keeping the humidity of inner case less than 30%. Advantages are: the working temp. of the laser device being kept at +(-) 1 deg.C, its working humidity being kept at less than 30%, higher lock-mode stability, stable working for 8-12 hrs.
Owner:TIANJIN UNIV

Method for achieving semiconductor cooler control loop based on software

The invention discloses a method for achieving a semiconductor cooler control loop based on software. A control circuit part in a semiconductor refrigeration control loop is digitalized through the software, and debugging, testing and problem positioning on a light receiving and transmitting module are facilitated. An analog control circuit in the technical scheme in the prior art is omitted, the layout area of the circuit board is reduced, the packaging of the light receiving and transmitting module becomes smaller and smaller, the material cost of the light receiving and transmitting module is reduced, a circuit structure and a software scheme through which the circuit board space can be saved and the cost can be reduced can be provided for the light receiving and transmitting module, and the method is worthy of being greatly popularized.
Owner:四川华拓光通信股份有限公司

Encapsulation structure of silicon-based biosensor chip

The invention relates to encapsulation of a microelectronic biosensor chip, in particular to an encapsulation structure of a compact multi-channel temperature-controllable silicon-based biosensor chip. The structure includes a first board, a second board and a third board, wherein the first board, the second board and the third board are sequentially overlapped in seamless joint mode; the second board is provided with a straight slot penetrating through the surface of the second board, the silicon-based biosensor chip is placed in the straight slot, a gap is formed between the bottom surface of the silicon-based biosensor chip and the surface of the third board, and the gap is filled with heat-conduction glue; the portion, directly facing the silicon-based biosensor chip, of the surface ofone side, attached to the second board, of the first board is provided with a micro flow groove, and the micro flow groove and the top surface of the silicon-based biosensor chip form a chamber usedfor containing to-be-detected liquid. According to the encapsulation structure of the silicon-based biosensor chip, the whole structure is compact, the size is small and the integration degree is high. The design of a laterally introduced PDMS micro flow channel makes the to-be-detected liquid fully contact with a microring resonator structure on the surface of a silicon wafer, and the testing sensitivity is greatly improved.
Owner:CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST

Frequency converter with intra-cavity environment detection function and working method thereof

The invention discloses a frequency converter with an intra-cavity environment detection function and a working method of the frequency converter. The frequency converter comprises a CPU chip, a firsttemperature sensor, a first heat radiator, a first semiconductor patch, an IGBT chip, a second temperature sensor, a second heat radiator, a second semiconductor patch, a rectifier, a third temperature sensor, a third heat radiator, a third semiconductor patch, a filter, a fourth temperature sensor, a fourth heat radiator, a fourth semiconductor patch, an inverter, a fifth temperature sensor, a fifth heat radiator, a fifth semiconductor patch, a harmful gas sensor, a humidity sensor, a smoke sensor, a wireless transmission chip, a capacitor and a heat dissipation shell. The working state of each chip can be found in time through real-time monitoring of the temperature sensor on the chips, the stable working temperature is maintained through the semiconductor patch, and the obtained environmental parameters are uploaded for real-time environmental monitoring.
Owner:HUAINAN WANTAI ELECTRONICS
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