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33results about How to "Precise and controllable temperature" patented technology
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APD-TIA (Avalanche Photodiode-Transfer-Impedance Amplifier) coaxial photoelectric module with temperature control function and fabrication method thereof
InactiveCN102412240APrecise and controllable temperatureStable temperatureSolid-state devicesSemiconductor/solid-state device manufacturingCapacitanceTemperature control
The invention discloses an Avalanche Photodiode-Transfer-Impedance Amplifier (APD-TIA) coaxial photoelectric module with a temperature control function and a fabrication method thereof. The APD-TIA coaxial photoelectric module mainly comprises a TO56 base with eight pins plus one pin, a thermoelectric cooler (TEC), an AIN (aluminium nitride) ceramic circuit substrate, an APD, a TIA, a RC (resistor-capacitor) filter module, a thermistor, a first filter capacitor and a second filter capacitor, wherein the TEC as a first layer is attached on the upper surface of the coaxial TO56 base, the AIN ceramic circuit substrate as a second layer is attached on the upper surface of the TEC, and the ADP, the TIA, the thermistor, the RC filter module, the first filter capacitor and the second filter capacitor are arranged on the surface of the AIN ceramic circuit substrate to form a third layer. The coaxial photoelectric module has the advantages of small size, good temperature characteristic, stable photoelectric properties and high reliability.
Owner:WUHAN HUAGONG GENUINE OPTICS TECH
Precisely-controllable gas supply system
InactiveCN106708141ASimple structurePrecise and controllable temperatureSimultaneous control of multiple variablesTemperature controlProcess engineering
The invention discloses a precisely-controllable gas supply system, which comprises a drying module, a flow control module, a temperature control module and a detection module which are connected in series, wherein a refrigeration evaporator and a heater of the temperature control module are installed on a same pipeline, gas subjected to drying processing flows through the refrigeration evaporator and the heater sequentially after the flow of the gas is controlled by means of a quality flow controller, thus the gas with controllable temperature and flow is obtained, and the gas circuit is simple in structure and precise in control. The precisely-controllable gas supply system further comprises a humidity control module on the basis of the controllable temperature and flow, a gas outlet end pipeline of the quality flow controller is provided with a three-way diverging valve, a certain flow of dry gas controlled by the quality flow controller is divided into two paths by means of the three-way diverging valve, one path undergoes temperature control by means of the temperature control module, the other path undergoes humidification by means of a humidifying barrel of a humidifying module and a drain valve, and the gas with precisely-controllable temperature, humidity and flow is obtained after mixing the two paths of gases.
Owner:无锡帕捷科技有限公司
Heat flow simulation test device of crystallizer meniscus horizontal heat transfer
InactiveCN102661967AAccurate and controllable thicknessPrecise and controllable temperatureMaterial heat developmentTemperature controlHeat flow
The invention discloses a heat flow simulation test device of crystallizer meniscus horizontal heat transfer, which comprises a billet casing, a crystallizer, a computer, a base, two temperature collectors and two temperature control modules, wherein the crystallizer is fixed on the base, the billet casing is fixed above the crystallizer, a casting powder sample is fixed between the crystallizer and the billet casing, and a camera is arranged on one side of the casting powder sample. Induction heating devices are arranged on two sides of the billet casing and connected with the first temperature control module. A thermocouple is respectively inserted into the billet casing and the crystallizer, the second temperature control module is respectively connected with the thermocouple in the billet casing and the first temperature collector, and the thermocouple in the crystallizer is connected with the computer through the second temperature collector. A water inlet pipe and a water outlet pipe are arranged on the base. The heat flow simulation test device solves problems that heat flow among liquid steel, casting powder and the crystallizer in the existing steel metallurgy continuous casting process cannot be monitored and thermodynamic change of casting powder in the heat transfer process cannot be observed in situ.
Owner:CENT SOUTH UNIV
Low-temperature leak detection system and leak detection method of valve
PendingCN110082046AImprove securityImprove reliabilityDetection of fluid at leakage pointNuclear energy generationMass spectrometryEngineering
The invention relates to the technical field of low-temperature leak detection testing of valves, in particular to a low-temperature leak detection system and leak detection method of a valve. The system comprises a gas supply and distribution device, a refrigeration device, a first helium mass spectrometer leak detector, a second helium mass spectrometer leak detector, a plurality of gas inlet pipelines, a plurality of gas outlet pipelines and a vacuum detection platform, wherein the gas supply and distribution device is communicated with the vacuum detection platform through the gas inlet pipelines, the first helium mass spectrometer leak detector is communicated with the vacuum detection platform through the gas outlet pipelines, each pair of gas inlet pipeline and gas outlet pipeline is respectively connected to two ends of the corresponding valve to be detected, and valves are respectively arranged on the first helium mass spectrometer leak detector, the second helium mass spectrometer leak detector, the gas inlet pipelines and the gas outlet pipelines. According to the invention, the refrigeration device is used as a cold source, so that the safety and the reliability of thetest are improved, the labor cost and the test cost are reduced, the temperature of a sample is accurate and controllable, a plurality of valves to be tested can be detected in one test, and the testperiod is short.
Owner:TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
Continuous-casting casting powder comprehensive heat transfer heat flow testing method
InactiveCN102879130AAccurate and controllable thicknessPrecise and controllable temperatureCalorimeterThermal insulationSlag
The invention discloses a continuous-casting casting powder comprehensive heat transfer heat flow testing method, which includes the following steps: melting, keeping the heat and continuous casting the casting powder in induction furnaces through a carbon crucible, enabling ingredients and temperature of the casting powder to be uniform and accordant; pouring the molten casting powder in a copper base, performing liquid protection and quick cooling the casting powder in the copper base, so as to form a subtransparent vitreous casting power film; pouring out and sending the casting power film to a heat preserving furnace for thermal insulation, performing stress relieving and annealing, taking out and cooling the casting power film, so as to prepare an experimental used powder film; and cautiously placing the experimental used powder film in a copper mould of a testing system, adjusting the experimental position of the copper mould in place, starting a power supply for experiment execution, during the experiment, collecting temperature data at different positions in the copper mould through a thermocouple sensor inserted in the copper mould, and calculating out the heat transfer flow passing by the casting slag through a computer in a real-time manner. Through the adoption of the method provided by the invention, temperature of a blank housing can be accurately controlled, the precision for testing the horizontal comprehensive heat transfer heat flow data of the casting powder is high, test pieces can be prepared conveniently, stably and reliably, and the manufacturing cost is low.
Owner:CENT SOUTH UNIV
Testing device for testing low-temperature adsorption performance of gas
ActiveCN106442895ASolve wastePrecise and controllable temperatureMaterial analysisProcess engineeringEngineering
The invention discloses a testing device for testing a low-temperature adsorption performance of gas. The testing device comprises a low-temperature device, a gas adsorption device and a gas inlet pipeline, wherein the low-temperature device comprises a refrigerating machine, a sample cavity which is arranged on a secondary cold head of the refrigerating machine and is used for storing a sample for testing, a shielding cover which covers the secondary cold head of the refrigerating machine and the sample cavity, and a vacuum cover which covers the shielding cover and enables a primary cold head of the refrigerating machine, the secondary cold head of the refrigerating machine and the sample cavity to be in a vacuum environment; the sample cavity is connected with an adsorption device reference cavity in the gas adsorption device through a gas conveying pipeline. According to the testing device provided by the invention, the refrigerating machine is used as a cold source, and problems that a low-temperature adsorption performance testing device excessively depends on low-temperature liquid so that experimental operations are complicated and a lot of raw materials of the low-temperature liquid are wasted in the prior art are solved.
Owner:TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
Portable intelligent tubule sperm temperature control meter
ActiveCN104000669APrecise and controllable temperatureImprove thawing efficiencyAnimal reproductionTemperature controlEngineering
The invention discloses a portable intelligent tubule sperm temperature control meter. The control meter comprises a base and a control meter body which can be separated from each other, wherein a battery is arranged in the base, an inserting groove is formed in the upper end of the base, and a contactor male base is arranged in the center of the inserting groove; the control meter body comprises a liner, a shell wrapping the liner, and a cap arranged at the upper end of an opening of the liner; a heating disk is connected to the bottom of the liner in a seamless mode, and a plurality of temperature detectors are arranged on the outer side wall of the liner; a contactor female base matched with the base is connected to the bottom of the shell; the heating disk, the temperature detectors and the contactor female base are all connected with a circuit board arranged in the shell and connected to a control panel. According to the portable intelligent tubule sperm temperature control meter, the temperature in the control meter is actively adjusted so that tubule sperm can be thawed, the temperature of the tubule sperm can be kept, the temperature is accurate and controllable, no hot water needs to be added for adjustment, and therefore the sperm is not influenced by the temperature of the external environment, the quality of the tubule sperm is guaranteed, and a technician can carry the tubule sperm for use conveniently.
Owner:易康乐
Precise temperature control driving circuit of Stirling cryocooler and control method
InactiveCN108981218AImprove adaptabilityReduce vibrationCompression machinesRefrigeration safety arrangementSignal processing circuitsFull bridge
The invention discloses a precise temperature control driving circuit of a Stirling cryocooler. The circuit comprises an MCU main control circuit body, an FPGA module and a full-bridge driving module.The MCU main control circuit body is used for being in real-time communication with a computer or a system platform; the FPGA module is used for conducting collection process of temperature data, implementation of a vague PID control algorithm and generation of SPWM waveforms; the full-bridge driving module is used for improving the driving capacity. The MCU main control circuit body is electrically connected with the FPGA module, the FPGA module is electrically connected with the full-bridge driving module, and the full-bridge driving module is electrically connected with an acoustic energycompressor and a temperature collection module through an interface circuit; the acoustic energy compressor is electrically connected with the temperature collection module, and the temperature collection module is connected with the FPGA module through a temperature signal processing circuit. According to the precise temperature control driving circuit, through common use of an FPGA and an MCU, the advantages of the FPGA and the MCU are achieved to the greatest degree, which is beneficial to more precise temperature control and parameter interaction.
Owner:方舟
Method and device for hot forming of medium-thickness plates under elastic preloading
The invention discloses a method and device for hot forming of medium-thickness plates under elastic preloading and belongs to the technical field of metal plate plastic forming. The method includes: elastically preloading a medium-thickness plate on a pre-bending die to enable the medium-thickness plate to elastically deform, heating the medium-thickness plate to be formed to 150-920 DEG C according to physical performances of the medium-thickness plate, and applying high-pressure hot liquid medium of 150-400 DEG C to a tension surface area of the medium-thickness plate for impacting to enable the medium-thickness plate to plastically deform until obtaining a needed shape. The medium-thickness plate is preloaded to elastically deform, so that a needed basic shape is primarily obtained; the medium-thickness plate is heated to 150-920 DEG C, so that material yield strength is lowered and extension ratio of the medium-thickness plate is increased. Compared with a medium-thickness plate formed by independently adopting high-pressure water jet, the medium-thickness plate formed by the method has the advantages of bigger curvature, high accuracy and bigger thickness.
Owner:ANHUI UNIVERSITY OF TECHNOLOGY
Low-pressure ammonia synthesis tower and renewable energy low-pressure ammonia synthesis system
ActiveCN113461027APrecise and controllable temperatureImprove conversion efficiencyCellsBulk chemical productionThermodynamicsPtru catalyst
The invention discloses a low-pressure synthesis ammonia tower and a renewable energy source low-pressure synthesis ammonia system, the synthesis ammonia tower comprises a reactor outer cylinder, a raw material gas inlet pipe and a product gas outlet pipe, a plurality of catalyst frames are sleeved in the reactor outer cylinder, and a first catalyst bed layer is arranged in each catalyst frame; a central pipe is also arranged in the reactor outer cylinder, the central pipe is communicated with one catalyst frame, one-way airflow channels which are sequentially communicated in series are formed among the catalyst frames, and the product gas outlet pipe is communicated with the output gas output end of the last catalyst frame which participates in the synthesis ammonia reaction; a plurality of first heat exchange tube bundles penetrating through all the catalyst frames are arranged in the catalyst frames, one end of each first heat exchange tube bundle is communicated with the high-pressure water inlet tube, and the other end of each first heat exchange tube bundle is communicated with the steam tube. The ammonia synthesis tower disclosed by the invention can be used for efficiently transferring heat, preheating feed gas and producing byproduct steam, can realize accurate temperature control of a bed layer, is beneficial to ammonia synthesis reaction, and has the advantages of energy conservation and consumption reduction, the operation temperature range of the ammonia synthesis tower is 300-450 DEG C, and the pressure range is 0.1-10MPa.
Owner:FUZHOU UNIV ASSET MANAGEMENT CO LTD
Reaction control method based on microwave heating
InactiveCN104525077AGood convection effectImprove heat transfer performanceEnergy based chemical/physical/physico-chemical processesTemperature controlMicrowave
The invention discloses a reaction control method based on microwave heating. The bottom of a water tank (1) is provided with a microwave heater (3), a microprocessor (2) controls the microwave heater to work to control the temperature of water in the water tank so as to provide an environment temperature for reaction in a reaction vessel (13). The bottom of the water tank is provided with a circulating pump (7) and a pipe (6) in butt joint with an outlet of the circulating pump. The pipe is provided with a plurality of spray pipes (5) at equal intervals. Circulation of water in the water tank is promoted through the circulating pump and the spray pipes. The circulating pump is controlled by the microprocessor. A lifting mechanism (15) based on lead screw transmission is adopted to drive the reaction vessel to ascend and descend. The reaction vessel is internally provided with a stirrer (12). The lifting mechanism based on lead screw transmission is connected with the reaction vessel through a transverse rod. The microprocessor is further connected with a wireless communication unit, and the wireless communication unit is used for communicating with a remote control center. The reaction control method based on microwave heating has an automatic temperature control function, the convection effect is good, the liquid level can be automatically locked, safety is high, and it can be guaranteed that reaction is conducted stably.
Owner:CHANGSHA UNIVERSITY
Heating device capable of randomly adjusting heating area of high-strength steel and heating method of heating device
PendingCN108251611ASmooth connectionSmooth transitionHeat treatment process controlIncreasing energy efficiencyHeat conductingHigh intensity
The invention discloses a heating device capable of randomly adjusting a heating area of high-strength steel. The heating device comprises an upper die holder, a lower die holder, a heating plate, a plurality of movable electrodes, a plurality of upper fixed electrodes, a plurality of lower fixed electrodes, cooling water channels, and a heat conducting plate, wherein a sliding guide rail is arranged on the lower end face of the upper die holder; the upper end surface of the lower die holder is provided with a base, and cooling blocks are arranged on the base; the movable electrodes are movably mounted on the sliding guide rail through an air pressure device and can horizontally move on the sliding guide rail; the upper fixed electrodes are fixed on both sides of the guide rail; the lowerfixed electrodes are fixed on both sides of the base; the cooling water channels are arranged inside the cooling blocks; the heat conducting plate is arranged above the cooling blocks; different regions of the heating plate are heated at different temperatures by the energy transmitted after the movable electrodes and the upper fixed electrodes are electrified; the heating plate can be cooled by introducing cooling water into the cooling water channels. The invention further discloses a heating method of the heating device capable of randomly adjusting the heating area of the high-strength steel.
Owner:JILIN UNIV
Novel firewood-coal-electricity integrated high-temperature equipment for ceramic firing
InactiveCN106197022AImprove firing qualityPrecise and controllable temperatureCharge manipulationFurnace typesElectricitySmoke
The invention provides a novel firewood-coal-electricity integrated high-temperature equipment for ceramic firing. The novel firewood-coal-electricity integrated high-temperature equipment for ceramic firing comprises an electric-control high-temperature furnace and a firewood-coal combustion furnace. The electric-control high-temperature furnace communicated with the firewood-coal combustion furnace through a smoke channel. The electric-control high-temperature furnace is located above the firewood-coal combustion furnace and used for providing the temperature required for ceramic firing. The firewood-coal combustion furnace is used for providing reductive gas required for ceramic firing. An ash pond is arranged below the firewood-coal combustion furnace. The novel firewood-coal-electricity integrated high-temperature equipment for ceramic firing has the beneficial effects that when the firewood-coal-electricity integrated high-temperature equipment is used for ceramic firing, a green body to be fired is placed in a hearth of the electric-control high-temperature furnace, a temperature source is provided by the electric-control high-temperature furnace, an atmosphere source (the reductive gas) is provided by the firewood-coal combustion furnace, the atmosphere source provided by the firewood-coal combustion furnace enters the hearth of the electric-control high-temperature furnace through the smoke channel and air holes, and the ceramic firing quality is greatly improved.
Owner:HENAN UNIVERSITY
High-strength steel thermoforming gradient heating device and heating method thereof
ActiveCN108246896ASmooth transitionNo discontinuitiesShaping toolsMetal-working feeding devicesEngineeringMechanical engineering
The invention discloses a high-strength steel thermoforming gradient heating device. The device comprises an upper die base, a lower die base, a heating plate, a plurality of movable electrodes, a plurality of fixed electrodes, a heating device and a cooling water way, wherein the a base is arranged on the lower die base, a cooling block is arranged at the upper portion of the base, the movable electrodes are fixed to the lower portion of the upper die base through a pneumatic device, the fixed electrodes are fixed to the two sides of the cooling block, the heating device is arranged at the lower portion of the upper die base and arranged between the adjacent movable electrodes, and the cooling device is arranged inside the cooling block; different regions of the heating plate can be heated under different temperatures through heat transmitted after the movable electrodes and the fixed electrodes are powered on; the heating plate can be cooled by introducing cooling water into the cooling water way. The invention discloses a heating method of the high-strength steel thermoforming gradient heating device.
Owner:JILIN UNIV
aggregation box
ActiveCN105085719BEnsuring Low Temperature PolymerizationEnsure low-temperature polymerization of samples on racksSpace heating and ventilation safety systemsSpace heating and ventilation control systemsBiological pumpUltraviolet
Owner:SOUTH CHINA BOTANICAL GARDEN CHINESE ACADEMY OF SCI
Air conditioner system with draught fan waste heat recycling and control method of air conditioner system
ActiveCN110779109AHigh control precisionFast dynamic responseEnergy recovery in ventilation and heatingMechanical apparatusAir filterEngineering
An air conditioner system with draught fan waste heat recycling comprises a first-level heat exchanger (2), a first water stop device (3), an air blower (5), an air filter (7), a second-level heat exchanger (9), a second water stop device (11) and a controller. The air conditioner system is characterized in that the first-level heat exchanger, the first water stop device, the air blower, the air filter, the second-level heat exchanger and the second water stop device are sequentially arranged in the airflow flow direction, an air conditioner air inlet temperature sensor is arranged at the upstream position of the first-level heat exchanger, and a draught fan inlet temperature sensor is arranged at the upstream position of the air blower and between the air blower and the first water stop device. Control precision is high, dynamic response is sensitive, more energy is saved, and the efficient and energy-saving type dehumidification air conditioner system accurate and controllable in temperature is achieved.
Owner:JIANGXI QINGHUA TAIHAO SANBO ELECTRICAL MACHINE
Liner tube aging device
PendingCN112023445APrecise and controllable temperatureFast heatingSolid sorbent liquid separationEngineeringHeater Rod
The invention discloses a liner tube aging device, which comprises a control box, an airflow distribution device and a heating device; a flow meter, a temperature controller and a time controller areinstalled on the side wall of the control box, the temperature controller is located on one side of the flow meter, and the time controller is located on the lower side of the temperature controller;the airflow distribution device comprises an upper aluminum air chamber and a lower aluminum air chamber, the lower aluminum air chamber is fixedly connected to the top of the control box, and the upper aluminum air chamber is fixedly connected to the upper end face of the lower aluminum air chamber; the heating device comprises an aluminum heating block, and the aluminum heating block is fixedlyconnected to the upper end face of the upper aluminum air chamber; the temperature of a heating rod in a heating module can be set, so that the temperature of a filling material in a liner tube is accurate and controllable, the temperature rising speed is high, the aging of the filling material in the liner tube can be ensured, gradual temperature rising is realized, and the success rate of linertube aging is greatly improved.
Owner:SOUTH CHINA BOTANICAL GARDEN CHINESE ACADEMY OF SCI
A Multifunctional Microwave Heating Reaction Control System
InactiveCN104656703BGood convection effectImprove heat transfer performanceTemperatue controlClosed loopEngineering
The invention discloses a multifunctional microwave heating reaction control system which comprises a water tank (1), a microwave heater (3), a micro processor (2) and a water tank bottom shell, wherein a magnetron tube for heating is arranged in the microwave heater; a heating cavity (4) of the microwave heater extends into the water tank from a base plate of the water tank; a layer of shielding mesh capable of penetrating through liquid covers the heating cavity; the micro processor (2) controls water temperature in the water tank by controlling the operation of the microwave heater; a circulating pump (7) and a pipeline (6) butted with an outlet of the circulating pump are arranged at the bottom of the water tank. The multifunctional microwave heating reaction control system further comprises a lifting mechanism (15) based on screw rod transmission. By adoption of a closed-loop PID control system, the temperature can be precisely controlled. The multifunctional microwave heating reaction control system has an automatic temperature control function, is excellent in convection effect, high in safety and high in integration degree and can automatically lock a liquid level and ensure that the reaction can be stably carried out.
Owner:CHANGSHA UNIVERSITY
A test device for testing gas low-temperature adsorption performance
ActiveCN106442895BSolve wastePrecise and controllable temperatureMaterial analysisProcess engineeringCryo-adsorption
The invention discloses a testing device for testing a low-temperature adsorption performance of gas. The testing device comprises a low-temperature device, a gas adsorption device and a gas inlet pipeline, wherein the low-temperature device comprises a refrigerating machine, a sample cavity which is arranged on a secondary cold head of the refrigerating machine and is used for storing a sample for testing, a shielding cover which covers the secondary cold head of the refrigerating machine and the sample cavity, and a vacuum cover which covers the shielding cover and enables a primary cold head of the refrigerating machine, the secondary cold head of the refrigerating machine and the sample cavity to be in a vacuum environment; the sample cavity is connected with an adsorption device reference cavity in the gas adsorption device through a gas conveying pipeline. According to the testing device provided by the invention, the refrigerating machine is used as a cold source, and problems that a low-temperature adsorption performance testing device excessively depends on low-temperature liquid so that experimental operations are complicated and a lot of raw materials of the low-temperature liquid are wasted in the prior art are solved.
Owner:TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
A reaction control method based on microwave heating
InactiveCN104525077BGood convection effectImprove heat transfer performanceEnergy based chemical/physical/physico-chemical processesTemperature controlMicrowave
The invention discloses a reaction control method based on microwave heating. The bottom of a water tank (1) is provided with a microwave heater (3), a microprocessor (2) controls the microwave heater to work to control the temperature of water in the water tank so as to provide an environment temperature for reaction in a reaction vessel (13). The bottom of the water tank is provided with a circulating pump (7) and a pipe (6) in butt joint with an outlet of the circulating pump. The pipe is provided with a plurality of spray pipes (5) at equal intervals. Circulation of water in the water tank is promoted through the circulating pump and the spray pipes. The circulating pump is controlled by the microprocessor. A lifting mechanism (15) based on lead screw transmission is adopted to drive the reaction vessel to ascend and descend. The reaction vessel is internally provided with a stirrer (12). The lifting mechanism based on lead screw transmission is connected with the reaction vessel through a transverse rod. The microprocessor is further connected with a wireless communication unit, and the wireless communication unit is used for communicating with a remote control center. The reaction control method based on microwave heating has an automatic temperature control function, the convection effect is good, the liquid level can be automatically locked, safety is high, and it can be guaranteed that reaction is conducted stably.
Owner:CHANGSHA UNIVERSITY
A temperature-controlled safe catalytic oxidation vocs treatment method
ActiveCN109126440BEfficient responseImprove purification effectGas treatmentDispersed particle separationCatalytic oxidationEngineering
The invention discloses a method for treating temperature-controlled and safe catalytic oxidation VOCs. The method is realized by using a temperature-controlled and safe catalytic oxidation VOCs treatment device. Heat transfer oil temperature: After the heat transfer oil heat storage completes normal operation, use the heat transfer oil thermal convection principle to achieve heat balance, or provide external power cycle heat transfer liquid or external power cycle and auxiliary heat dissipation and cooling to achieve heat balance, heat transfer oil absorbs catalytic reaction and releases The heat is absorbed by the fresh VOCs material to maintain thermal balance and self-continuous reaction, so as to achieve the purpose of energy saving and stable operation.
Owner:CHINA PETROLEUM & CHEM CORP +1
Multifunctional microwave heating reaction control system
InactiveCN104656703AGood convection effectImprove heat transfer performanceTemperatue controlClosed loopEngineering
The invention discloses a multifunctional microwave heating reaction control system which comprises a water tank (1), a microwave heater (3), a micro processor (2) and a water tank bottom shell, wherein a magnetron tube for heating is arranged in the microwave heater; a heating cavity (4) of the microwave heater extends into the water tank from a base plate of the water tank; a layer of shielding mesh capable of penetrating through liquid covers the heating cavity; the micro processor (2) controls water temperature in the water tank by controlling the operation of the microwave heater; a circulating pump (7) and a pipeline (6) butted with an outlet of the circulating pump are arranged at the bottom of the water tank. The multifunctional microwave heating reaction control system further comprises a lifting mechanism (15) based on screw rod transmission. By adoption of a closed-loop PID control system, the temperature can be precisely controlled. The multifunctional microwave heating reaction control system has an automatic temperature control function, is excellent in convection effect, high in safety and high in integration degree and can automatically lock a liquid level and ensure that the reaction can be stably carried out.
Owner:CHANGSHA UNIVERSITY
An air conditioning system with fan waste heat recovery and its control method
ActiveCN110779109BPrecise and controllable temperatureHigh control precisionEnergy recovery in ventilation and heatingMechanical apparatusAir filterAir blower
Owner:JIANGXI QINGHUA TAIHAO SANBO ELECTRICAL MACHINE
Method and device for hot forming of medium-thickness plates under elastic preloading
ActiveCN103191969BRaise the draw ratioLower yield strengthShaping toolsEngineeringHigh pressure water
The invention discloses a method and device for hot forming of medium-thickness plates under elastic preloading and belongs to the technical field of metal plate plastic forming. The method includes: elastically preloading a medium-thickness plate on a pre-bending die to enable the medium-thickness plate to elastically deform, heating the medium-thickness plate to be formed to 150-920 DEG C according to physical performances of the medium-thickness plate, and applying high-pressure hot liquid medium of 150-400 DEG C to a tension surface area of the medium-thickness plate for impacting to enable the medium-thickness plate to plastically deform until obtaining a needed shape. The medium-thickness plate is preloaded to elastically deform, so that a needed basic shape is primarily obtained; the medium-thickness plate is heated to 150-920 DEG C, so that material yield strength is lowered and extension ratio of the medium-thickness plate is increased. Compared with a medium-thickness plate formed by independently adopting high-pressure water jet, the medium-thickness plate formed by the method has the advantages of bigger curvature, high accuracy and bigger thickness.
Owner:ANHUI UNIVERSITY OF TECHNOLOGY
Portable intelligent straw semen temperature controller
ActiveCN104000669BPrecise and controllable temperatureImprove thawing efficiencyAnimal reproductionTemperature controlEngineering
The invention discloses a portable intelligent tubule sperm temperature control meter. The control meter comprises a base and a control meter body which can be separated from each other, wherein a battery is arranged in the base, an inserting groove is formed in the upper end of the base, and a contactor male base is arranged in the center of the inserting groove; the control meter body comprises a liner, a shell wrapping the liner, and a cap arranged at the upper end of an opening of the liner; a heating disk is connected to the bottom of the liner in a seamless mode, and a plurality of temperature detectors are arranged on the outer side wall of the liner; a contactor female base matched with the base is connected to the bottom of the shell; the heating disk, the temperature detectors and the contactor female base are all connected with a circuit board arranged in the shell and connected to a control panel. According to the portable intelligent tubule sperm temperature control meter, the temperature in the control meter is actively adjusted so that tubule sperm can be thawed, the temperature of the tubule sperm can be kept, the temperature is accurate and controllable, no hot water needs to be added for adjustment, and therefore the sperm is not influenced by the temperature of the external environment, the quality of the tubule sperm is guaranteed, and a technician can carry the tubule sperm for use conveniently.
Owner:易康乐
Bearing intelligent temperature control heater
ActiveCN107396477BSolve the problem that heating is easy to cause pollutionSolve temperature problemsMetal working apparatusInduction heating apparatusTemperature controlElectromagnetic heating
Owner:CHINA THIRD METALLURGICAL GRP
Parameterized control system and method for cooling gas jet in metal cutting
ActiveCN113238480BSmall fluctuationImprove stabilityControllers with particular characteristicsJet flowControl system
The invention discloses a parametric control system and method for metal cutting cooling gas jet. The system consists of a nozzle body, a voltage-stabilizing and constant-value valve, a mass flow controller, an infrared temperature sensor, an electric sliding table and a PID controller. composition. The electric sliding table is fixed at the appropriate position of the machine tool, and the infrared temperature sensor is used to monitor the temperature of a certain point on the workpiece in real time to reflect the heat exchange effect; when the environmental factors, gas supply factors, process factors, machine tool factors, etc. The established parameterized model compares the temperature measurement value with the expected value by the PID controller to realize the temperature feedback control. In the invention, the cooling gas before entering the nozzle is regulated by introducing a constant value valve, and a mass flow controller is introduced to adjust the instantaneous mass flow of the cooling gas at the inlet of the nozzle according to different cutting environments and conditions.
Owner:HEFEI UNIV OF TECH
Magnesium alloy strip roll induction heating method and device
ActiveCN105834220BCompact structureImprove heating efficiencyTemperature control deviceMeasuring devicesInductorThermoregulatory system
The invention relates to a technology for heating magnesium alloy plate and strip roll. A device for induction heating of magnesium alloy plate and strip roll comprises an inductor system, a temperature measurement system, a temperature adjusting system, an intelligent processing unit, and a PLC control system. The steps of the roll induction heating method comprises: firstly, setting target temperature of the roll and temperature difference allowed by a roll surface, starting the roll and the roll rotating; secondly, starting the inductor system, heating the roll surface of the roll to the target temperature; third, in the heating process, a thermodetector of the temperature measurement system detecting the temperature of the roll surface of the roll in real time, and transmitting real-time temperature data of the roll surface to an intelligent processing unit, the intelligent processing unit calculating the temperature, and sending a calculation result to a PLC control system; fourth, the temperature adjusting system and the inductor system regulating the temperature of the roll surface in real time according to the instruction sent out by the PLC control system. The method and the device can satisfy requirements of roll rapid heating and real-time temperature accuracy control, and ensure technological requirements for smooth warm rolling of magnesium alloy plates and strips.
Owner:BAOSHAN IRON & STEEL CO LTD
Temperature-controlled and safe catalytic oxidation VOCs treatment reactor
PendingCN109126454AImprove purification effectImprove heat storage capacityGas treatmentDispersed particle separationTemperature controlCatalytic oxidation
The invention discloses a temperature-controlled and safe catalytic oxidation VOCs treatment reactor. The reactor comprises a catalytic reactor, a gas inlet is formed in the top of the catalytic reactor, a gas outlet is formed in the bottom, reactor tubes are arranged longitudinally in the catalytic reactor, the upper and lower ends of the reactor tubes are fixed to a baffle plate and protrude from the baffle plate, sealed cavities are formed between the catalytic reactor, the reactor tubes and the baffle plate, and the sealed cavities are filled with recyclable heat transfer oil; a heat transfer oil outlet is formed in the upper portion of the catalytic reactor, and a heat transfer oil inlet is formed in the lower portion; the upper layers of the insides of the reactor tubes are filled with stainless steel wire meshes or porcelain balls, the middle layers are filled with a catalyst, and the lower layers are filled with heat conduction and supporting porcelain balls. The reactor has strong heat storage capacity, precise and controllable reaction temperature and safety and reliability, and is particularly suitable for handling large-flow and intermittent material air inlet.
Owner:CHINA PETROLEUM & CHEM CORP +1
Polymerization tank
ActiveCN105085719APrecise and controllable temperatureFast coolingSpace heating and ventilation safety systemsSpace heating and ventilation control systemsEvaporatorEngineering
The invention provides a polymerization tank. The polymerization tank comprises an insulating shell body which is provided with a sample chamber and an insulating cover body covering the insulating shell body, wherein a sample rack is arranged in the sample chamber of the insulating shell body; an ultraviolet lamp chamber which is arranged corresponding to the sample rack is embedded inside the insulating cover body; and a refrigeration system is arranged in the insulating shell body, and a refrigeration evaporator in the refrigeration system is arranged on the side wall of the sample chamber. According to the polymerization tank, the temperature can be accurately controlled, the cooling speed is high, strong ultraviolet ray can be provided to facilitate polymerization of biological samples, and biological samples manufactured by utilizing the polymerization tank have stable quality.
Owner:SOUTH CHINA BOTANICAL GARDEN CHINESE ACADEMY OF SCI
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