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83results about How to "Accurate temperature" patented technology

Artificial stratum freezing engineering monitoring and early warning method and system based on digital twinning

The invention discloses an artificial stratum freezing engineering monitoring and early warning method and system based on digital twinning, and relates to the field of underground engineering. According to the method, the three-dimensional geometric structure of an artificial stratum freezing engineering site, freezing pipe arrangement, the preset temperature of freezing liquid and stratum physical and mechanical parameters are calculated according to the three-dimensional geometric structure, the freezing pipe arrangement, the preset temperature of freezing liquid and the stratum physical and mechanical parameters; the stratum thermophysical parameters serve as the actual situation of the freezing project and are input into the numerical model, and prediction data of all positions of an artificial stratum freezing project site within preset time are output; determining the numerical model as a trained numerical model based on the preset value, the prediction data and the real temperature of the rock-soil body monitored at each temperature measurement point in real time; based on the trained numerical model, determining target prediction data of each position of the artificial stratum freezing engineering site within a preset time; based on the target prediction data, determining a freezing result of the on-site artificial stratum freezing project; and according to the freezing result and a preset deformation standard, determining an abnormal freezing result and carrying out early warning. And the monitoring and early warning efficiency of the freezing effect is improved.
Owner:TONGJI UNIV

High and low temperature control rock-soil nuclear magnetic resonance triaxial apparatus and use method thereof

The invention discloses a high and low temperature control rock-soil nuclear magnetic resonance triaxial apparatus and a use method, the high and low temperature control rock-soil nuclear magnetic resonance triaxial apparatus comprises a high and low temperature control rock-soil nuclear magnetic resonance triaxial apparatus arranged in a low field nuclear magnetic resonance analyzer, the high and low temperature control rock-soil nuclear magnetic resonance triaxial apparatus comprises a temperature control system, a pressure chamber, an axial stress loading device and a data acquisition system, temperature control systems are arranged at the upper and lower ends of the pressure chamber; and an axial stress loading device and a data acquisition system are arranged below the pressure chamber. According to the invention, high and low temperature accurate and stable control can be realized, an in-situ occurrence temperature environment and a real stress state of a soil sample are really simulated, and the material and the size of the device are adaptive to the test requirements of a low-field nuclear magnetic resonance analyzer and the size of a pore cavity; the test research on the macroscopic strength characteristic, the micro-pore structure, the permeability characteristic and the like of the geotechnical material by the temperature can be carried out; while the strength and deformation mechanical property indexes of the sample are obtained, a high-resolution image of internal pore structure evolution and dynamic moisture migration can be captured.
Owner:LANZHOU UNIVERSITY OF TECHNOLOGY

Method for recycling lithium cobalt oxide positive electrode material in waste lithium battery by gradient pyrolysis method

The invention discloses a method for recycling a lithium cobalt oxide positive electrode material in a waste lithium battery through a cascade pyrolysis method, and relates to the technical field of battery positive electrode recycling. The waste lithium battery is subjected to real-time adjustment according to a first-stage temperature adjustment formula within a first-stage pyrolysis temperature range to obtain a first-stage product; calculating a second-stage formula temperature of the first-stage product in a second-stage pyrolysis temperature range according to a second-stage temperature formula, constructing a second-stage temperature control model, and predicting a second-stage real-time prediction temperature; a second-stage product is obtained according to the second-stage formula temperature and the second-stage real-time predicted temperature, a third-stage formula temperature of the second-stage product is calculated according to a third-stage temperature formula in a third-stage pyrolysis temperature range, a third-stage temperature control model is constructed, a third-stage real-time predicted temperature is predicted, and a lithium cobalt oxide product is obtained according to the third-stage formula temperature and the third-stage real-time predicted temperature. The purity and the electrochemical performance of the lithium cobalt oxide positive electrode material are improved, and meanwhile, the energy consumption is reduced.
Owner:常州厚丰新能源有限公司

Air conditioner control method, device and system and air conditioner

The invention discloses an air conditioner control method, device and system and an air conditioner, and belongs to the field of air conditioners. When the air conditioner enters the pet mode, pet information is obtained, the pet information at least comprises pet behavior data and pet physiological data, then the pet information is input into a pre-trained temperature sensitivity model, model output is obtained, then the target temperature is obtained based on the model output, and the air conditioner is controlled to reach the target temperature. According to the scheme, the temperature of the air conditioner is controlled by combining the behavior data and the physiological data of the pet, the air conditioner can provide more accurate temperature according to behaviors and physiology of the pet, manual adjustment is not needed, and the user experience is improved.
Owner:GREE ELECTRIC APPLIANCE INC OF ZHUHAI

Intelligent bus duct with remote monitoring function

The invention relates to the technical field of bus ducts, in particular to an intelligent bus duct with a remote monitoring function, which comprises an insulating protective shell, a bus bar is arranged in the insulating protective shell, heat dissipation grooves are formed in the upper surface and the lower surface of the insulating protective shell, and a heat dissipation fin mounting assembly is arranged outside the bus bar; the cooling device has the beneficial effects that the cooling fin mounting assembly is provided, special hollow shapes are set by utilizing the special-shaped hollow cooling fins, cooling liquid can circulate in the cooling fins, air flow can circulate in the cooling ventilation grooves in the two sides, and the air-cooling cooling assembly is matched with the liquid-cooling cooling assembly, so that the cooling effect is improved; air cooling and liquid cooling are combined to replace high-energy-consumption semiconductor refrigeration, precise temperature monitoring and intelligent control are carried out in cooperation with an intelligent monitoring equipment assembly, a complete heat dissipation system is started only when necessary, the heat dissipation intensity is dynamically adjusted, and unnecessary energy consumption is reduced.
Owner:HUATONG INTELLIGENT ELECTRIC (JIANGSU) CO LTD

Method for testing photoelectric and thermal characteristics of semiconductor device

The invention relates to the technical field of material science, and particularly discloses a method for testing photoelectric and thermal characteristics of a semiconductor device, which comprises the following steps of: acquiring crystal impurity evaluation parameters of the semiconductor device to perform crystal impurity evaluation of the semiconductor device, and acquiring a crystal impurity interference correction value, the method comprises the steps of obtaining a thermal characteristic parameter set and a light characteristic parameter set of a semiconductor device, determining a test temperature array and a test light intensity array, determining a plurality of photo-thermal coupling test schemes based on the test temperature array and the test light intensity array, applying each photo-thermal coupling test scheme to the semiconductor device and obtaining an electrical characteristic tested data set, according to the method, the electrical characteristic tested value is calculated based on the electrical characteristic tested data set corresponding to each photo-thermal coupling test scheme, the optimal photo-thermal coupling test scheme is determined, the rationality and adaptability of formulating the photo-thermal coupling test scheme are improved, and it is ensured that the test result can reflect the characteristic performance of the semiconductor device in various environments.
Owner:HEFEI JISHU TECH CO LTD

Non-contact GIS equipment internal conductor temperature monitoring method and system

The invention relates to the technical field of power equipment monitoring, and particularly discloses a non-contact GIS equipment internal conductor temperature monitoring method and system, and the method comprises the steps: obtaining the parameter information of GIS equipment, and building a thermal simulation mathematical model according to the parameter information, inputting data at least including contact resistance of a contact conductor and a bus conductor and current passing through the conductor into the thermal simulation mathematical model, and outputting temperature field distribution data in the equipment; according to the temperature field distribution data, determining first temperature data of an equipment contact conductor and second temperature data of partial gas chamber gas in the equipment monitoring point; establishing a monitoring mathematical model based on multivariate linear fitting according to the first temperature data and the second temperature data; actual temperature data of part of SF6 gas corresponding to equipment monitoring points are collected, the actual temperature of the internal conductor of the equipment is determined based on the actual temperature data and the monitoring mathematical model, and accurate monitoring of the temperature of the internal conductor of the non-contact GIS equipment is achieved through the method.
Owner:NANCHANG KECHEN ELECTRIC POWER TEST & RES CO LTD +1

Heat dissipation device and heat dissipation method based on idle heat dissipation resource sharing in case

The invention relates to the technical field of communication equipment, and provides a heat dissipation device and method based on idle heat dissipation resource sharing in a case, and the device comprises heat dissipation fins equipped for a plurality of service ports, heat conduction graphite flakes and an automatic fan system. The cooling fins are lengthened and connected through the heat conduction graphite flakes to form an annular heat dissipation network, free conduction of heat among all service ports is achieved, and idle heat dissipation resources are effectively utilized and shared. The automatic fan system automatically adjusts the wind speed according to the highest temperature in the case to ensure that the temperature is appropriate. The temperature sensor monitors the temperature of each service port in real time, and provides accurate feedback for a fan system and a control system. Besides, the device also has comprehensive monitoring and optimizing functions, continuously monitors the temperature distribution in the case, the running state of the fan and the noise level, and performs optimization and adjustment as required. According to the heat dissipation device and method, the heat dissipation efficiency is improved, the energy consumption and the noise are reduced, and the stable operation and the optimal heat dissipation effect of the case are ensured.
Owner:SINO TELECOM TECHNOLOGY CO INC

Ultralow-temperature discharge automobile emergency starting power supply heating method and related equipment

The invention discloses an automobile emergency starting power supply heating method for ultralow-temperature discharging and related equipment, and relates to the technical field of model computation.The method comprises the steps that current vehicle data, battery data, environment data and use mode data are obtained, a probability prediction model is input, and the starting probability is evaluated; the target temperature is calculated according to the environment temperature trend and the normal battery working temperature, and finally the heating strategy is formulated according to the electric quantity condition, so that accurate temperature prediction and intelligent heating control can be performed on the automobile emergency starting power supply in the low-temperature environment, unnecessary energy consumption can be greatly reduced, and the energy consumption is reduced. According to the method, accurate and efficient emergency power supply heating in a low-temperature environment is realized, the influence of heating on electric quantity is effectively reduced, and the availability of an emergency starting function is ensured.
Owner:SHENZHEN CARLIFE TECH CO LTD

Bacterial culture device capable of adjusting pH value

The utility model relates to the technical field of bacterial culture devices, in particular to a pH-value-adjustable bacterial culture device, which comprises a culture tank provided with a closing cover, and further comprises a temperature control base arranged below the culture tank and used for adjusting bacterial culture temperature; the illumination ring is arranged on the temperature control base, sleeves the culture tank body and is used for providing bacterial culture illumination; the at least one adjusting unit comprises an adjusting liquid tank, and the adjusting liquid tank is communicated and connected with the culture tank through a liquid conveying pipe; a liquid pressing plate which vertically ascends and descends along the inner wall of the adjusting liquid tank is arranged in the adjusting liquid tank, and the liquid pressing plate is used for pressing the pH adjusting liquid into the adjusting liquid tank; adjusting liquid can be conveyed into the culture tank through the arranged adjusting unit so as to adjust the pH of the culture environment, the culture tank does not need to be opened, the stability of culture conditions can be kept, and other pollution media are prevented from being introduced when the culture tank is opened and the adjusting liquid is dropwise added; meanwhile, the temperature control base and the illumination ring arranged in the device can provide proper illumination and temperature for bacterial culture.
Owner:SHENZHEN JUNCHANGYI BIOTECHNOLOGY CO LTD +1

Temperature monitoring method and device for rockfill concrete integrated pouring dam body and medium

The invention provides a rockfill concrete integrated pouring dam body temperature monitoring method. The method comprises the steps that before concrete is poured, a multivariate regression model of in-bin temperature field distribution of integrated pouring rockfill concrete under various conditions is built; obtaining related parameters of a to-be-monitored construction warehouse surface, setting a key characteristic moment in a hydration heat temperature rise process, and obtaining an in-warehouse temperature field distribution function of the to-be-monitored construction warehouse surface based on the multiple regression model; utilizing the function to predict the in-bin temperature of the construction bin surface to be monitored and the maximum value of the gradient of the in-bin temperature to obtain an in-bin temperature field distribution function meeting the construction requirements, selecting a plurality of points in the function as representative temperature measurement points, and embedding thermometers in the representative temperature measurement points; during cast-in-place concrete, dynamically updating the distribution function of the temperature field in the bin according to the monitoring result of each temperature measuring point; and monitoring the temperature in the warehouse according to the dynamically updated distribution function of the temperature field in the warehouse. According to the invention, the cracking risk of the dam caused by abnormal temperature or sudden environment change can be obviously reduced.
Owner:SHAANXI PROVINCIAL DONGZHUANG WATER CONSERVANCY ENG CO LTD +1

Full-automatic shaver welding control system and method

The invention discloses a full-automatic shaver welding method which comprises the following steps: workpiece positioning: adopting a high-precision visual positioning system and combining with a multi-axis mechanical arm to carry out precise positioning and welding parameter intelligent setting on each part of a shaver; laser welding is executed, specifically, a laser beam with high energy density is used for welding a shaver part under set welding parameters, and welding quality is monitored in real time, specifically, a multi-sensor fusion technology is adopted and comprises an infrared thermal imaging sensor and an ultrasonic flaw detection sensor, and temperature distribution and weld defect parameters in the welding process are monitored in real time; self-adaptive adjustment: monitoring data in real time according to the welding quality, and if the welding quality does not reach a preset standard; high-precision positioning and intelligent parameter setting are achieved, the advanced technology is adopted for real-time monitoring and adjustment, the welding quality and efficiency are improved, the cost is reduced, and automatic and intelligent development of shaver welding is promoted.
Owner:ZHANGJIAGANG XINKAI STRIP STEEL MFG CO LTD

Coagulating bath temperature control equipment for wet spinning carbon fiber precursor production line

The invention discloses wet spinning carbon fiber precursor production line coagulating bath temperature control equipment which comprises a shell, a solid bath groove is formed in the upper end of the shell, a plurality of supporting frames are installed at the lower end of the shell, and a heat exchange cavity is formed in the shell; the temperature control mechanism comprises hollow plates which are symmetrically and fixedly connected to the inner walls of the two sides of the solid bath tank, a plurality of through openings are formed in the opposite sides of the two hollow plates, a connecting cylinder is fixedly connected to the left side of the shell, a columnar groove is formed in the lower end of the connecting cylinder, a first piston block capable of sliding up and down is arranged in the columnar groove, and a second piston block capable of sliding up and down is arranged in the first piston block. The inner top space of the columnar groove communicates with the interior of the hollow plate on the left side through a second one-way pipe, and the inner top space of the columnar groove communicates with the left space of the heat exchange cavity through a first one-way pipe. In the actual use process of the coagulating bath, the overall internal temperature uniformity is relatively good under the joint cooperation of the heat exchanger, the temperature control mechanism, the gas injection mechanism and other structures.
Owner:VISION HLDG LTD

Temperature response type flowable concrete admixture as well as preparation method and application thereof

The invention relates to a temperature-responsive flowable concrete admixture which comprises the following raw materials in percentage by mass: 30-50% of a temperature-sensitive polymer material, 2-5% of a cross-linking agent, 3-5% of a water-soluble water reducing agent, 1-3% of a plasticizer and 40-60% of water, wherein the temperature-sensitive high polymer material is selected from one or more of polyvinyl alcohol and sodium polyacrylate. The temperature response type flowable concrete admixture disclosed by the invention can be applied to concrete to realize dynamic adjustment under temperature change, so that the excellent construction performance of the concrete under different environmental conditions is ensured.
Owner:CHENGDU YEXINGRUNDA NEW BUILDING MATERIALS CO LTD

Temperature and water control system and method in spreading and airing process

The invention relates to a temperature and water control system and method in a spreading and airing process. The temperature and water control system comprises a spreading and airing container, the monitoring unit is arranged in the spreading and airing container; the air inlet pipeline is communicated with an inner cavity of the spreading and airing container, the vacuum pump is matched with the air inlet pipeline, and the calculation unit is configured to perform a spreading and airing task on each batch of fermented grains which are received by the spreading and airing container in batches and are at the retort outlet temperature; the current temperature and the current moisture content of the current batch of fermented grains are determined according to the temperature information and the moisture content information of the current batch of fermented grains provided by the monitoring unit, and the current temperature and the target airing temperature (Tz) are compared, and the current moisture content and the target airing moisture content (Wz) are compared; therefore, the air inlet parameter of the air inlet pipeline and / or the suction parameter of the vacuum pump and / or the water replenishing parameter of the spray head for spraying the water are / is controlled. According to the invention, acid reduction is realized through regulation and control measures in a pure physical mode, so that the flavor of the final product is improved.
Owner:LUZHOU LAOJIAO CO LTD +1

Aerosol thermal desorption device, aerosol thermal desorption system and method

The aerosol thermal desorption device comprises a porous pipeline, a heating part, an inner shell, an adsorbent and an outer shell which are sequentially distributed from inside to outside, the porous pipeline is used for receiving aerosol, and the inner shell is provided with a channel for aerosol volatile matter to pass through. The invention further relates to an aerosol thermal desorption system and method. According to the aerosol thermal desorption device, heating and adsorption are integrated, the heating component is arranged on the outer side of the porous pipeline, so that the whole aerosol thermal desorption device forms a temperature gradient from inside to outside when the heating component is heated, the temperature gradient enables aerosol conveyed by the porous pipeline to form an organic steam gradient, rapid evaporation is achieved, and the thermal desorption efficiency is improved. Therefore, rapid condensation can be realized only by matching with heat dissipation equipment for heat dissipation, and the adsorption efficiency of the adsorbent is improved.
Owner:JINAN UNIVERSITY +2

Dimension measurement control method for steel billet forging

InactiveCN119609031Aquality improvementImprove forging precisionForging press drivesPoint cloudData set
The invention discloses a size measurement control method for steel billet forging, and belongs to the technical field of industrial visual intelligence. The method comprises the following steps: acquiring material information, three-dimensional point cloud and temperature information of a target steel billet; based on the three-dimensional point cloud, performing three-dimensional modeling on the target steel billet to determine size information of the target steel billet; under the condition that it is determined that the temperature information meets the forging condition, the to-be-machined position of the target steel billet is determined according to the size information; the material information and the temperature information corresponding to the to-be-machined position are input into a machining prediction model, the forging force, corresponding to the to-be-machined position, output by the machining prediction model is obtained, and the machining prediction model is obtained based on a data set comprising a plurality of training samples; and based on the to-be-machined position and the forging force, parameter configuration is conducted on the forging machine, so that the forging machine is controlled to forge the to-be-machined position of the target steel billet with the forging force. The method improves the forging precision and the forging effect of the steel billet.
Owner:WUHAN TIANSHENG GREEN CITY TECH CO LTD

High-temperature superconducting magnet temperature equalization control method for circulating cold helium

The invention provides a high-temperature superconducting magnet temperature equalization control method for circulating cold helium, and belongs to the field of superconducting magnet temperature control, and the method comprises the steps: calculating a difference value between a target temperature and an actual measurement temperature, and obtaining a steady-state error of each group of magnets; constructing a mathematical model of the cold helium cooling system according to a singular perturbation theory; a control target is determined, and the overall performance and stability of the cold helium cooling system are improved; and constructing a singular perturbation control model based on the variable universe Smith. According to the invention, the response speed and precision of the cold helium cooling system can be improved.
Owner:INST OF ELECTRICAL ENG CHINESE ACAD OF SCI

Optical fiber sensing probe, detection device and detection method

The invention provides an optical fiber sensing probe, a detection device and a detection method, and belongs to the technical field of environmental parameter detection. The optical fiber sensing probe comprises a base and a temperature sensing assembly, a plurality of guide rods which are arranged in parallel at intervals are arranged on the base, and electrified contacts are arranged at the tail ends of the guide rods. The temperature sensing assembly comprises a fiber bragg grating, a leading-out optical fiber, a plastic hose and a plurality of metal pipes, the metal pipes are connected to the electrified contacts at the tail ends of the guide rods in a one-to-one correspondence mode, the metal pipes are connected through the plastic hose, and the other end of one metal pipe is connected with the base through the plastic hose; the leading-out optical fiber penetrates through the plastic hose and the metal tubes, and the fiber bragg grating is arranged on the leading-out optical fiber in the metal tubes. Accurate temperature sensing and detection can be realized in an area with a complex electromagnetic environment under the condition that a detected object is electrified.
Owner:WUHAN NARI LIABILITY OF STATE GRID ELECTRIC POWER RES INST +2

Low-loss automatic temperature control automobile air conditioner condenser

The utility model relates to the field of condensers, in particular to a low-loss automatic temperature control automobile air conditioner condenser. The technical problems that according to an existing condenser, a control system is usually used for controlling operation and stopping of the condenser, due to the fact that the reaction speed of an internal temperature control switch is likely to be low, closing cannot be monitored in time after the condenser operates for a long time, the condensing temperature is too high, the load of a compressor is increased, and the loss of equipment is increased are solved. According to the technical scheme, the low-loss automatic temperature control automobile air conditioner condenser comprises a heat dissipation plate, a recycling assembly, a connecting assembly and an auxiliary assembly; recycling or discharging of heat is controlled through the discharging valve and the recycling valve, the heat generated by the condenser is transmitted to be used for preheating air in the automobile or heating water in the water tank, it is ensured that the released heat can be fully recycled, better heat recycling is achieved, the supply requirement of the interior of the automobile for other heat is lowered, and the service life of the automobile is prolonged. The automobile energy consumption is reduced and the environment-friendly performance of the automobile is improved.
Owner:GUANGZHOU QUAN ZHENG AUTO PARTS CO LTD

Feeding bottle disinfection cabinet with high and low temperature control function

The utility model discloses a feeding bottle disinfection cabinet with a high and low temperature control function, which comprises an inner shell, the inner shell comprises an air outlet and an air inlet, and is characterized in that the air outlet is communicated with an air outlet channel, a first temperature sensing element is arranged in the air outlet channel, a second temperature sensing element is arranged on the inner shell, and the first temperature sensing element and the second temperature sensing element are communicated with each other. The air inlet is provided with an air inlet channel, a heating body is arranged in the air inlet channel, the temperature in the cavity and the temperature of air flow after heat exchange at the air outlet can be accurately measured through the second temperature sensing element and the first temperature sensing element, namely, the heating body can be accurately controlled for heating, high temperature or low temperature can be maintained in the cavity, and the temperature is accurate.
Owner:浙江喂养家智能科技有限公司

Self-adaptive cleaning device applied to rock wool production centrifugal machine

The invention relates to the technical field of rock wool centrifugal roller surface cleaning and maintenance, in particular to a self-adaptive cleaning device applied to a rock wool production centrifugal machine, which comprises a centrifugal machine shell and a centrifugal roller shaft mounted on the centrifugal machine shell, and the outer side surface of the centrifugal roller shaft is axially sleeved with a split external heat exchange cover. According to the self-adaptive cleaning device applied to the rock wool production centrifugal machine, the outer side face of the centrifugal roller shaft is sleeved with the split type external heat exchange cover, once abrasion occurs, only the single split type external heat exchange cover needs to be replaced, and the maintenance cost and difficulty are greatly reduced; and an electric control type external obstacle removing module is installed on the side wall of the centrifugal machine shell, so that sticky substances can be automatically removed when the sticky substances exist on the surface of the split type external heat exchange cover, and the production efficiency and the product stability are guaranteed.
Owner:CHANGZHOU YINGLAI MACHINERY

A temperature control system

The embodiment of the present disclosure provides a temperature control system, comprising: a power module, used for supplying power for a circuit; a multi-channel thyristor module connected with the power module, used for simultaneously controlling a plurality of heating devices; a plurality of heating devices connected with the plurality of channels in the multi-channel thyristor module one by one, used for heating external objects; and a programmable logic controller, used for controlling the multi-channel thyristor module, so as to realize the control of the plurality of heating devices. The embodiment of the present disclosure can accurately adjust the working state of each heating device according to specific temperature requirements, and further realize more accurate temperature distribution and control.
Owner:CHENWEI EQUIP TECH (SUZHOU) CO LTD

Automobile air conditioner mixed damper frost-proof heat insulation assembly with double-layer sealing structure

The utility model discloses a frost insulation heat -proof subassembly of automobile air conditioner mixed air door of double -deck sealing structure belongs to automobile air conditioning technical field, and its technical key points include mixed air door subassembly, A sealing assembly and B sealing assembly. The utility model, when importing cold and warm air current to the inside of car, in order to make the proportion of imported air current can accurate control, and then make the temperature in the inside of car can accurate control, therefore set up A sealing assembly and B sealing assembly on mixed air door subassembly, through the cooperation of A sealing assembly and B sealing assembly, thereby can make mixed air door subassembly can carry out relatively accurate cold and warm air current's export, and through the linkage of A sealing assembly and mixed air door subassembly, can make when driving mixed air door subassembly, can drive A sealing assembly together, at this moment can realize the quick closing and opening of air duct.
Owner:HUBEI SUPERMAN AUTO PARTS CO LTD

Data-driven aero-engine turbine disk service load calculation method

ActiveCN119294265AImprove load calculation efficiencyRetention time domain featuresSustainable transportationDesign optimisation/simulationAviationControl theory
The invention belongs to the technical field of aero-engines, and particularly relates to a data-driven aero-engine turbine disk service load calculation method, which comprises the following steps: acquiring service process data of a to-be-evaluated engine; according to the engine thermodynamic cycle principle, using the service process data to calculate and correct thermodynamic performance process data of the engine to be evaluated; extracting turbine disc working condition history data according to the service history data of the to-be-evaluated engine and the corrected thermodynamic property history data of the to-be-evaluated engine; and establishing and verifying a turbine disc transient load agent model by using a data driving method, and calculating the turbine disc service load through the turbine disc transient load agent model by taking turbine disc working condition history data as input. Compared with a traditional numerical simulation method, the method has the advantages that the calculation efficiency is improved on the premise that the calculation precision is guaranteed, and the stress and temperature response characteristics under the transient load are reserved.
Owner:BEIHANG UNIV

A method for improving steel ingot yield using high-temperature CO2 gas

This invention belongs to the field of die casting in metallurgical processes, and particularly relates to a method for improving steel ingot yield using high-temperature CO2 gas. The method includes: 1) filling the steel ingot mold and runner with high-temperature CO2 before casting, and preheating the mold and runner to 400-700°C; 2) during casting, after the molten steel enters the ingot mold, the interior of the mold is a sealed space filled with CO2 atmosphere, and the CO2 heated by the molten steel is circulated back to the heat exchange furnace. No protective slag or heating agent is used during the casting process; 3) after casting, during the solidification process of the steel ingot, the high-temperature CO2 gas in the heat exchange furnace is used to replenish the CO2 gas in the ingot mold, resulting in slow solidification of the steel ingot and sufficient riser feeding. The advantages are: using high-temperature CO2 gas as an isolation, heat transfer, and insulation medium, and through a closed circulating heat exchange system, precise temperature and atmosphere control are achieved during the casting and solidification process of the steel ingot. By optimizing feeding and reducing waste, the steel ingot yield can be increased to over 90%.
Owner:ANGANG STEEL CO LTD

Hermetia illucens incubator

The utility model provides a hermetia illucens incubator which comprises a shell and a plurality of supporting legs, the supporting legs are fixedly arranged at the bottom of the shell, a heating piece is arranged on the shell, a water storage cavity is formed in the bottom of the inner side of the shell, a ventilation cavity is communicated with the upper portion of the water storage cavity, and the ventilation cavity is communicated with the heating piece. A supporting piece used for supporting egg boxes to be placed is arranged between the water storage cavity and the ventilation cavity, a separating assembly used for separating the egg boxes is arranged above the containing piece, a mounting plate is hinged to the top of the shell, and a lighting piece used for providing light for the interior of the shell is arranged on the mounting plate. The device has the advantages that the internal temperature and humidity are adjusted, and hatching of eggs and seedlings is facilitated.
Owner:HUZHOU VOCATIONAL TECH COLLEGE +1

Electronic circuit device, and temperature measurement method of electronic circuit device

A temperature of an electronic circuit device such as an integrated circuit is measured with high accuracy. The electronic circuit device (10) includes a main processor (20) and a temperature measurement module (30). The main processor (20) can execute predetermined signal processing. The temperature measurement module (30) generates a signal having a correspondence relationship with the temperature of the main processor (20) under a mode in which the temperature measurement module is driven at a predetermined low power consumption or less and the thermal resistance between the temperature measurement module and the main processor (20) is a predetermined thermal resistance value or less.
Owner:FURUNO ELECTRIC CO LTD

Transformer pile head temperature measurement wire clamp and installation method

The invention discloses a transformer pile head temperature measurement wire clamp and an installation method, and relates to the technical field of transformer power distribution devices. The transformer pile head temperature measuring wire clamp comprises a shell and a temperature measuring assembly, the shell comprises a pile head connecting part and a wire connecting part which are connected with each other, the wire connecting part is provided with an installation hole, the wire connecting part is provided with a first connecting hole, the first connecting hole is provided with a first fixing screw, the temperature measuring assembly comprises a temperature measuring probe, and the wire connecting part is provided with an insertion hole. The cable is provided with a jack, the temperature measuring probe is inserted from the jack, the cable is provided with a temperature measuring hole, the temperature measuring probe is detachably sleeved with a sleeve, the sleeve is filled with a heat conduction material, and the temperature measuring probe is movably sleeved with a scraper located in the sleeve. The installation method of the transformer pile head temperature measurement wire clamp comprises the steps of preparation, shell installation, temperature measurement assembly installation, testing and the like. The temperature measurement probe directly obtains temperature data in the cable or the inner core, the obtained temperature is more accurate, the temperature measurement effect is better, risk early warning is more accurate, and safety accidents are reduced.
Owner:GUANGYUAN POWER SUPPLY COMPANY OF STATE GRID SICHUAN ELECTRIC POWER

Aluminum alloy die-casting process for improving the composition uniformity of die-casting parts

An aluminum alloy die-casting process for improving the uniformity of the composition of die-castings relates to the technical field of aluminum alloy casting processing. A low-pressure die-casting process is used to inject an aluminum-based melt with uniform composition into a cavity, and the melt in the die-casting cavity is heated and heated to ensure that the precipitated phase Mg2Si is dissolved into the aluminum-based melt. After that, the melt is kept warm to ensure that the melt is filled densely. Subsequently, a water-cooled active cooling technology is used to accelerate the solidification speed, shorten the time between the precipitation of the Mg2Si dispersed phase and the solidification of the aluminum alloy, inhibit the floating of the Mg2Si dispersed phase, and improve the uniformity of the composition of the aluminum alloy die-casting. In addition, a short insulation is performed near the solidification temperature line, and then water-cooling is performed to slowly cool, thereby ensuring the density of the aluminum alloy die-casting. The present invention can greatly improve the uniformity of the composition of the aluminum alloy die-casting while ensuring the aluminum alloy die-casting, thereby achieving the improvement of the performance of the aluminum alloy die-casting and ensuring the efficient and stable production of the aluminum alloy die-casting.
Owner:ANHUI ANHUANG MACHINERY