115 results about "Thermal coefficient" patented technology

The invention discloses a PINN-based transformer convective heat transfer coefficient acquisition method, system and device and a medium, and relates to the technical field of transformers, and the method comprises the steps: building a three-dimensional thermal field simulation model based on transformer structure parameters, obtaining temperature field data through multi-physics field coupling simulation, building a sample set, training a physical information neural network model, and obtaining the convective heat transfer coefficient of a transformer. A loss function is defined, through weight adjustment and optimization algorithm training, loss change is dynamically monitored, convective heat transfer coefficient distribution is inversed, an inversion coefficient is substituted into a thermal model for forward calculation, iterative optimization is performed through comparison with independent measurement data, and accuracy and applicability are verified through actually measured temperature data. According to the method, the dependence on experimental data is reduced, the high-precision and high-efficiency acquisition of the convective heat transfer coefficient of the spatial change of the transformer is realized, and a reliable technical means is provided for thermal design and state evaluation of the transformer.

The multi-field coupling collaborative modeling and parameter autonomous intelligent decision-making method for the roller type quenching process comprises the steps that four key process parameters including the nozzle flow, the water ratio, the roller gap distance and the plate passing speed are collected and subjected to normalization preprocessing, and a training set and a test set are divided; the four key process parameters of the training set serve as input, the water-cooling convective heat transfer coefficient and the phase change plasticity coefficient serve as output, a BP neural network is trained, and the workpiece surface water-cooling convective heat transfer coefficient and the material internal phase change plasticity coefficient are predicted through the trained BP neural network; a multi-field coupling model composed of a temperature field, a structure phase change field and a stress-strain field is solved, and quantitative calculation of quenching core quality indexes is achieved; by taking water consumption minimization as a target, constructing a nonlinear optimization model under the condition that multiple core quality index constraints of the plate temperature, the outlet hardness and the plate shape are met; and performing global optimization on the optimization model by adopting a differential evolution algorithm, and autonomously deciding an optimal process parameter set value.

The invention relates to the technical field of material mechanical property testing, and provides an ultralow-temperature slow strain mechanical tensile test platform which comprises a vacuum Dewar unit, a liquid helium temperature control unit, a slow strain tensile unit, a measuring unit and a control unit, the vacuum Dewar unit comprises a vacuum Dewar body and is used for providing a closed low-temperature test environment; the liquid helium temperature control unit comprises a direct injection module and a recovery module, the direct injection module is used for directly injecting liquid helium to the gauge length section of the sample for cooling, and the recovery module is used for recovering and recycling unevaporated liquid helium; the slow strain stretching unit is used for stretching a sample arranged in the vacuum Dewar body at a low strain rate; the measuring unit is arranged in the vacuum Dewar body and is used for monitoring the temperature, the force value and the strain data of the sample in real time. Liquid helium is used as a cold source, the liquid helium is directly aligned to the gauge length section of the sample through the direct injection module, and compared with a traditional liquid helium steam natural convection heat exchange mode, the heat exchange coefficient is increased, and automatic precise temperature control is achieved.

The invention relates to a method for predicting nutation transmission time-varying meshing thermal stiffness of a double-arc spiral bevel gear, which comprises the following steps of: setting convective heat transfer coefficients of a gear meshing surface, a non-meshing surface and a gear end surface in an interaction module according to boundary conditions, and applying surface heat flow in a load module according to an obtained meshing area, so as to predict the nutation transmission time-varying meshing thermal stiffness of the double-arc spiral bevel gear. A heat transfer DC3D8R grid is selected as a grid type, and according to a boundary formula, a temperature field during meshing of the double-arc spiral bevel gear is finally calculated; in a Model of ABAQUS software structure simulation, a load module applies a predefined temperature field, a temperature field odb file is loaded into the Model, and structure simulation is carried out; according to the method, temperature field distribution and meshing characteristics can be combined, the time-varying meshing thermal stiffness of the nutation transmission double-arc spiral bevel gear can be accurately predicted, a theoretical basis can be provided for transmission performance evaluation and service life prediction of a gear pair, and important engineering value is provided for design and optimization of a high-performance gear transmission system.

The invention discloses a building curtain wall heat transfer coefficient detection method, system and equipment and a storage medium. The method comprises the following steps: S1, obtaining thermotechnical data of a to-be-detected building curtain wall; the thermotechnical data comprises a frame width, a frame depth, a frame interval, an outdoor panel temperature matrix, an indoor panel temperature matrix and a heat flux density matrix; s2, processing the thermotechnical data of the to-be-tested building curtain wall by adopting a pre-trained regression model to obtain heat transfer data of the to-be-tested building curtain wall; s3, calculating a frame heat transfer coefficient of the to-be-tested building curtain wall based on the heat transfer data of the to-be-tested building curtain wall; and S4, acquiring linear heat transfer data of the building curtain wall to be tested, and obtaining a curtain wall heat transfer coefficient corresponding to the building curtain wall to be tested based on the linear heat transfer data in combination with the frame heat transfer coefficient. According to the invention, rapid detection of the heat transfer coefficient of the building curtain wall can be realized, and the method has the advantages of low cost, high efficiency, relatively high precision and the like.

The invention discloses a CSP soaking pit furnace wall thermal insulation material which is of a gradient composite structure comprising an instantaneous high temperature resistant inner layer, a thermal insulation middle layer and a radiation heat exchange outer layer, and the instantaneous high temperature resistant inner layer is made of a composite material comprising nano aerogel and high temperature resistant whiskers; the heat insulation middle layer is made of a nano-particle modified ceramic fiber material; and the radiation heat exchange outer layer adopts a ceramic coating with high infrared reflectivity. The overall heat conductivity coefficient is reduced through the synergistic effect of the low heat conductivity of the inner layer, the high-temperature shrinkage resistance of the middle layer and the radiation heat dissipation performance of the outer layer, good instantaneous high temperature resistance and high-temperature stability are considered, and the heat preservation effect is remarkably enhanced; and in combination with various surface connection improvement means, a heat conduction path can be effectively prolonged, a heat bridge effect can be blocked, heat loss is further reduced, heat energy loss and operation energy consumption of the furnace body are remarkably reduced, and rapid repair is facilitated.

The application relates to the fields of material science and electronic heat dissipation technology, and discloses a high-thermal-conductivity low-interface-thermal-resistance heat dissipation powder and a preparation method thereof, which comprises the following steps: S1, mixing a base material and a reinforcing material, and then dissolving the mixture in a dissolving solution to form an initial suspension; S2, adding a functional additive to the initial suspension, and forming a functional initial material with a three-dimensional network structure through a sol-gel method; S3, depositing an interface modifier on the surface of the functional initial material to form a dense interface modification layer, and preparing a composite material; S4, calcining the composite material at high temperature in an inert atmosphere to obtain a heat dissipation material; and S5, cooling, grinding and screening the heat dissipation material to obtain the heat dissipation powder. The high-thermal-conductivity low-interface-thermal-resistance heat dissipation powder and the preparation method thereof have the advantages that through micro-nano double-scale structure design, micron alumina skeletons and nano reinforcing materials are embedded, and interface modification technology and functional additives are synergized, so that the heat dissipation powder has the advantages of high thermal conductivity, low interface thermal resistance, solution of traditional material agglomeration and heat conduction deficiency, and mechanical and thermal conductivity performance.

The invention relates to the technical field of metal material hot working technologies, in particular to a casting blank temperature field and structure evolution regulation and control method which comprises the steps that firstly, a three-dimensional finite element model is established based on the casting blank size and material parameters, temperature field simulation is conducted by setting different surface comprehensive heat exchange coefficients, and section temperature difference and heat transfer efficiency data are obtained; determining an optimized heat exchange condition; secondly, selecting a key temperature point based on temperature field characteristics disclosed by simulation to carry out a heat treatment experiment, establishing a quantitative relation among the heating temperature, the heat preservation time and the grain size, and determining a critical temperature and a critical heat preservation time for remarkable coarsening of the grains; and finally, in the actual heating process, the surface heat exchange boundary is controlled according to the optimized heat exchange conditions, and a heating curve and heat preservation time are set according to the quantitative relation and the critical parameters, so that the casting blank with the uniform section temperature and controlled grain coarsening is obtained. According to the method, precise cooperative regulation and control in the large casting blank heating process are achieved.

This invention discloses a low-flow-rate, ultra-low-flow-rate, high-efficiency liquid cooling channel system and its design method. Specifically, according to the coolant flow direction, microchannels and turbulence-prone columns are sequentially connected in series in the concentrated area of ​​the power chip. Parallel microchannels and turbulence-prone columns are then added in the scattered areas of the power chip. The widths of the microchannels and turbulence-prone columns increase from small to large, and the array of microchannels and turbulence-prone columns becomes increasingly dense. This achieves an increase in the convective heat transfer coefficient and heat transfer area of ​​the cold plate with the flow direction, thereby gradually reducing the heat transfer temperature difference and compensating for the adverse effects of coolant temperature rise on chip temperature uniformity. This achieves the effect that even with a coolant inlet-outlet temperature difference of 10°C or even 15°C or higher, the chip temperature uniformity can be controlled within 6-8°C, without increasing flow resistance.

The application belongs to the technical field of nylon 66 composite materials, and discloses a heat-conducting composite filler, a preparation method thereof and application of the heat-conducting composite filler in nylon 66. The heat-conducting composite filler is composed of boron nitride (BN@PDA) modified by dopamine and magnesium oxide (MgO-KH560) modified by a silane coupling agent, and the mass ratio is 1-3:1. Through two-step surface modification and solution chemical bonding, the close combination between components is realized, and the problems of uneven dispersion of traditional single heat-conducting filler, poor compatibility with the nylon 66 matrix and weak heat-conducting synergistic effect are effectively solved. When the heat-conducting composite filler is applied to nylon 66 composite materials at an addition amount of 10-30wt%, the thermal conductivity of the nylon 66 can be improved to more than 0.8 W / (m·K), the tensile strength is improved by 17%, and the heat-conducting composite filler has excellent processing performance, and is suitable for the fields of electronic equipment heat dissipation components, LED packaging materials, automobile heat management components and other fields with strict requirements on the thermal conductivity of materials.

The invention discloses a test method for testing the heat conductivity coefficient of a refractory material through a low-thermal-resistance plate method and relates to the field of testing. The test method for testing the heat conductivity coefficient of the refractory material by the low-thermal-resistance flat plate method comprises the following steps: preparing the refractory material into hexagonal test pieces, and paving the hexagonal test pieces on the surface of a hexagonal boron nitride layer on a vapor chamber to form a flat plate, so that each edge of the hexagonal test piece positioned on the inner side is respectively clung to six adjacent hexagonal test pieces; embedding a hot surface thermocouple for detecting the temperature of the bottom surface of the hexagonal test piece on the inner side in the hexagonal boron nitride layer, placing the flat plate on a heating plate in a mold, and filling aerogel between the flat plate and the side wall of the mold; a cooling water jacket and a cold-surface thermocouple for detecting the temperature of the top surface of the hexagonal test piece are mounted on the top surface of the hexagonal test piece on the inner side; heating the vapor chamber and cooling the hexagonal test piece by using a heating plate and a cooling water jacket; and calculating the heat conductivity coefficient of the refractory material after the temperature of the vapor chamber is stable. The test method for testing the heat conductivity coefficient of the refractory material by the low-thermal-resistance plate method has the advantages of good reliability of test results, high precision and high efficiency.

The invention discloses a FLUENT-based temperature field simulation method for a jet quenching process, belongs to the technical field of heat treatment numerical simulation, and aims to solve the technical problems that the temperature measurement difficulty of an anti-heat transfer method is high and the heat exchange coefficient at an interface is difficult to accurately and reversely deduce in the temperature field research of the quenching process of an existing large-scale variable-cross-section steel pipe. The temperature field simulation method comprises the following steps: S1, establishing a solid structure and an internal fluid geometric model; s2, constructing a solid structure and an internal fluid grid model; s3, setting a solving method; s4, setting calculation boundary conditions; s5, finite element simulation analysis is conducted on the quenching cooling process of the large-scale variable-cross-section steel pipe through Fluent software, and a simulation result is obtained; s6, analyzing a simulation result to obtain a temperature change curve and a temperature distribution cloud chart of the large-scale variable-cross-section steel pipe at different moments; and S7, determining quenching process parameters according to a simulation result. According to the method, more accurate and reliable temperature field data of the large variable-cross-section steel pipe in the inner-spraying and outer-spraying quenching process can be obtained.

The invention discloses an air conditioner load demand response potential evaluation method based on the Internet of Things, relates to the field of air conditioner load response analysis, and aims to avoid the uncomfortable problem of completely identifying all physical parameters in a traditional first-order equivalent thermal parameter model. The operation state of the air conditioner is decomposed into a steady-state interval and a dynamic interval, and key macroscopic characteristic parameters, namely a steady-state thermal coefficient, a power consumption boundary function and a dynamic time constant, capable of describing system boundaries and inertia are directly identified from data. According to the method, coupling identification of a plurality of internal states and parameters such as indoor temperature, equivalent thermal resistance and equivalent thermal capacity is ingeniously avoided, finally, in a non-intrusive scene only depending on user aggregation power utilization and outdoor temperature data, the macroscopic parameters capable of being accurately identified are utilized to evaluate response potential, and the response potential is evaluated. The accuracy and robustness of air conditioner load demand response potential evaluation are realized.

The invention discloses a large-pipe-diameter horizontal pipe surface liquid film flow heat transfer characteristic experiment device, and relates to the technical field of data processing, and the method comprises the following steps: constructing an infrared detection-based liquid film flow heat transfer characteristic experiment platform; collecting multi-dimensional experimental volume data based on the constructed experimental platform; the liquid film flow coverage characteristic and the heat exchange characteristic on the surface of the experiment body are obtained by combining the multi-dimensional experiment body data, the heating problem of a large-pipe-diameter high-heat-flow heat transfer pipe is solved, the technical problem that the semi-dry surface heat exchange coefficient and the liquid film coverage rate cannot be quantified in a traditional experiment is solved, and the technical blank of a falling film cooling experiment is filled.

The invention discloses a multi-layer composite heat preservation pipeline with a built-in vacuum air layer and an integrated production device of the multi-layer composite heat preservation pipeline, and relates to the technical field of composite pipes. A peelable inner film is bonded to the inner side of an outer protection pipe, a working pipe is arranged in the peelable inner film, and the space between the working pipe and the peelable inner film is filled with a polyurethane heat preservation layer; the forming assembly is arranged on one side of the extruder, the extrusion die is arranged on one side of the extruder, the extrusion block is installed in the middle of the extrusion die, the vacuum sizing mill is arranged on one side of the extruder, the air exhaust heat sealing machine is arranged on one side of the vacuum sizing mill, and the supporting preheating assembly is arranged between the heat sealing machine and the polyurethane filling machine. According to the design, the vacuum layer and the shell are integrated, the mechanical strength is high, the vacuum service life is long, the vacuum layer effectively blocks heat radiation and convection and cooperates with the polyurethane heat preservation layer, the heat conductivity coefficient is far lower than that of a traditional heat preservation pipe, and the problem that polyurethane is prone to being damped and aged after being used for a long time is solved.

1. Name of the product in this design: Experimental device for testing the external heat transfer coefficient of a single tube in forced convection. 2. Purpose of this design: Experimental device for testing the external heat transfer coefficient of a forced convection single tube. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1. 5. The bottom surface of this product is a part that is not easily seen or cannot be seen during use, so the bottom view is omitted.

This invention discloses a method for calculating the thermal conductivity of woven composite materials based on real material information, comprising the following steps: performing Micro-CT scanning on the woven composite material to obtain slice images; processing the slice images to obtain the real material information of the woven composite material; establishing a representative volume element geometric model based on the weaving parameters of the woven composite material; dividing the representative volume element into regions and matching the thermal conductivity calculation model according to the region characteristics; inputting the real material information into the thermal conductivity calculation model, replacing the material partitions in the representative volume element with the real material partitions, calculating the thermal conductivity of each region, and then determining the overall thermal conductivity calculation model and calculating the overall thermal conductivity based on the thermal conductivity and arrangement of each region. Using the above method, the accuracy of predicting the thermal conductivity of woven composite materials is improved, the design and optimization accuracy and efficiency of woven composite materials are enhanced, and the design cycle and design cost are significantly reduced.

This invention discloses a method and apparatus for measuring steady-state thermal conductivity with self-calibrated thermal loss. Combining the theory of self-calibrated thermal loss, it utilizes a layered thermal barrier of high and low thermal conductivity materials to achieve quasi-one-dimensional heat conduction. This invention eliminates the need for additional thermal loss calibration, using easily measurable physical quantities to account for thermal loss and calculate the accurate thermal conductivity and thermal resistance of the sample. Compared to traditional quasi-steady-state testing methods, this invention is applicable to measuring the thermal conductivity and contact thermal resistance of both extremely high thermal conductivity thin films and extremely low thermal conductivity materials under wide temperature ranges and varying pressure conditions. This invention eliminates the need for additional thermal protection and thermal loss calibration; the accurate thermal conductivity can be directly calculated from the measurement data, simplifying the steady-state measurement process and improving the repeatability and accuracy of the measurement. It can be used to measure the thermal conductivity and thermal resistance of samples under different temperatures and pressures.

A high-thermal conductivity slurry composition is provided that includes slurry mixture comprising a high-thermal k material and an optional dispersant. The high thermal k material is in form of a plurality of particles having a wide size distribution that spans across at least 2 log units. The high-thermal k material is present in an amount effective such that the slurry composition has, upon compaction or settling of the slurry mixture at a target location, a thermal conductivity of at least 3 W / m°K.

The invention discloses a high-thermal-conductivity solid hydrogen storage tank, relates to the technical field of hydrogen storage equipment, and aims to solve the technical problems that an existing solid hydrogen storage tank is low in thermal conductivity, slow in hydrogen absorption and desorption rate and insufficient in structural stability. The hydrogen storage tank comprises a tank body, a high-thermal-conductivity supporting assembly, hydrogen storage composite powder, a filter element and a bottleneck valve, the high-heat-conduction supporting assembly is of a multidirectional branch elastic three-dimensional structure, is made of a material with the heat conductivity coefficient being larger than or equal to 80 W / (mK) and abuts against the inner wall of the tank body through elastic deformation, and the contact area proportion is not smaller than 10%; the hydrogen storage composite powder is formed by mixing hydrogen storage alloy powder with auxiliary heat conduction materials such as graphite powder and metal powder, and the volume ratio of the auxiliary heat conduction materials is not larger than 10%. The surface of the supporting assembly is provided with a 5-10 [mu] m protective coating. By means of the collaborative design of macroscopic elastic supporting heat conduction and microcosmic composite powder heat conduction, the overall heat conductivity coefficient of the high-heat-conductivity solid hydrogen storage tank is larger than or equal to 25 W / (mK), the hydrogen absorption and desorption rate is increased by 2-5 times, and the high-heat-conductivity solid hydrogen storage tank is easy and convenient to assemble, stable in structure, controllable in cost, slight in hydrogen storage capacity loss and suitable for new energy automobiles, portable fuel cells, distributed energy storage systems and other scenes. The method has a wide commercial application prospect.

The application relates to the technical field of material processing, and discloses a high-precision power control method and system for laser annealing. The method comprises the following steps: acquiring initial thermal conductivity coefficient data, collecting environmental factor data in real time, and determining a preliminary path model of heat propagation; determining a temperature monitoring threshold according to the preliminary path model; collecting real-time temperature data, calculating a temperature gradient, adjusting a power control parameter after the temperature gradient exceeds the temperature monitoring threshold, optimizing a dynamic representation of the thermal conductivity coefficient, and determining an adaptability coefficient; obtaining a corrected power output sequence according to the adaptability coefficient; calculating a heat conduction rate according to the corrected power output sequence, and calculating an updated path model; determining a final power control scheme according to the updated path model; and optimizing a feedback integration process according to the final power control scheme, and obtaining an optimized sequence for different materials. The method can realize efficient and personalized material processing.

The invention relates to a dynamic measurement method for a convective heat transfer coefficient on the surface of heat exchange equipment, which specifically comprises the following steps of: (a) drawing up discrete points of the convective heat transfer coefficient, constructing a plurality of local linear heat transfer models and calculating a sensitivity coefficient; (b) establishing a temperature prediction model based on the model and the sensitivity coefficient, and obtaining a temperature prediction value of the measuring point; (c) comparing the predicted value with the measured value through rolling optimization to obtain a fluid temperature compensation quantity component; (d) constructing a weighting coefficient of the local linear heat transfer model according to the fluid temperature estimation deviation; (e) carrying out weighted integration on the discrete points, and outputting a convective heat transfer coefficient measurement value at the current moment; and (f) circularly updating the time domain until the measurement is finished. According to the method, the nonlinear system is segmented through local linearization, and rolling optimization and weighting strategies are combined, so that the surface convective heat transfer coefficient can be quickly and accurately measured.

The invention belongs to the technical field of aero-engines, and discloses a turbine casing impact heat exchange test method and system, and the method comprises the steps: determining impact hole parameter research variables, and the structure parameters and number of aperture replacement parts, and adjusting the diameters of impact holes through the aperture replacement parts; the number and arrangement of the impact holes are adjusted by installing hole diameter replacement parts and a plurality of plugs on the impact hole plates; the impact target distance is adjusted through different numbers of target distance replacement parts; and performing an impact cooling heat exchange test on each combined cartridge receiver impact heat exchange test piece to obtain heat exchange coefficients of impact target surfaces of different research variables. The hole diameter replacement part is arranged to change the hole diameter and hole arrangement, the target distance replacement part is arranged to change the impact distance, the number of test pieces can be reduced, the machining cost is reduced, the machining period is shortened, meanwhile, disassembly and assembly are easy, disassembly and assembly time is short, test consistency is guaranteed, effective measurement of the impact heat exchange test temperature is achieved, and therefore the corresponding impact heat exchange coefficient is obtained.

The invention relates to the technical field of high polymer material processing and industrial automation control, in particular to a film production line surface temperature homogenization temperature control system, which comprises a data acquisition module used for acquiring real-time state data in a film production process; the parameter inversion module is used for performing inversion to obtain thermophysical parameters representing the characteristics of the thin film material and comprehensive convective heat transfer coefficient parameters representing environmental interference; the entropy monitoring module is used for calculating a thermal coupling entropy index; the game control module is used for constructing a state space model and solving and generating a multi-temperature-zone heating power control instruction; the closed-loop correction module is used for calculating a correction increment to update an actuator health factor and feeding back the updated actuator health factor to the entropy monitoring module; the problem that a traditional fixed parameter model cannot adapt to raw material rheology and mismatch caused by environmental interference is solved, and the temperature prediction and control precision under high-speed transmission and complex working conditions is remarkably improved.

The utility model relates to the technical field of condensers, in particular to a condenser frame with good heat preservation performance, which comprises a beam, a first opening is arranged at the upper end of the beam, two long sides of the beam are respectively provided with a first bending portion, and a second opening is arranged at the lower end of the beam. The two first bending parts are perpendicular to the long edges respectively and extend oppositely to form a first opening, two first heat preservation materials and a second heat preservation material are arranged in the cross beam, the two first heat preservation materials are arranged on the inner sides of the two first bending parts respectively, and the second heat preservation material is arranged on the inner side of the first opening; a longitudinal beam; the cross beam is connected with the longitudinal beam, and the longitudinal beam is connected with the base. The condenser solves the problems that a metal frame of a traditional condenser is high in heat conductivity coefficient, under the condition that the external temperature of the condenser is low, dew is prone to being formed on the surface of the condenser, and the working efficiency of the condenser is reduced.

Modularized construction of a structure is used for a multi-die integration package. Segregation of complex devices into substructures (sub-modules) are tested and verified as functional before final reconstitution into the multi-die integration package. The thermal coefficient of sub-modules can be fine-tuned for low chip module warpage. The sub-modules can be made with a glass interposer tuned with a certain coefficient of thermal expansion (CTE) and modulus to provide favorable warpage performance. Solder interconnects at high stress locations may be used to further reduce via and polyimide (PI) stresses. A minimal redistributed layer (RDL) comprising conductive metal patterns with a plurality of metal contacts thereon is formed on a polyimide (PI) or glass carrier and electrically interconnects the sub-modules together.

The application relates to the technical field of chemical reaction kettles, and discloses a composite new material reaction kettle with a high heat conduction coefficient, which comprises a kettle body, a fixing frame is arranged at the upper end of the kettle body, an upper limiting ring is fixedly arranged at the lower side of the fixing frame, an upper disc block is rotatably arranged at the inner position of the lower side of the upper limiting ring, a mixing shaft is fixedly arranged on the upper disc block, the bottom of the mixing shaft extends to the inner bottom position of the kettle body through the upper side position of the kettle body, a plurality of heating plates are arranged at the bottom of the mixing shaft in the kettle body, a revolution mechanism is arranged on the fixing frame, a rotation mechanism for driving the mixing shaft to rotate is arranged at the upper side position of the kettle body, and the composite new material reaction kettle further comprises a circulating heating mechanism. The heating plates are driven by the mixing shaft to revolve and rotate in the kettle body, so that the reaction raw materials in the kettle body are fully mixed and stirred, the raw materials in the kettle body are rapidly heated or cooled, and the heating is uniform under the cooperation of the circulating heating mechanism.

The invention relates to a method for monitoring transient thermal boundary conditions of a membrane water wall, which comprises the following specific steps of: establishing a local linear heat transfer model by drawing up discrete points of convective heat transfer coefficients, and calculating a sensitivity coefficient; setting initial values of heat flow radiated towards the fire side and fluid temperature in the pipe; establishing a temperature prediction model; rolling optimization is adopted to obtain a thermal boundary condition compensation quantity component; a weighting coefficient is constructed based on the unexposed side heat insulation boundary condition deviation; weighting the comprehensive compensation amount and correcting a guess value to obtain a radiation heat flow and fluid temperature monitoring result; and meanwhile, discrete points are weighted to output a convective heat transfer coefficient. According to the method, the monitoring rate is remarkably increased, the hysteresis effect is reduced, the dynamic response is enhanced, nonlinear changes are accurately processed, and the engineering practicability is high.

The application discloses a combined modular determination device for casting aluminum alloy casting heat exchange coefficient and a data rapid acquisition method, which can simultaneously acquire multiple heat exchange coefficients of cavity and core materials, and through the combined modularization of used materials, each to-be-tested material is separated by an adiabatic layer and is combined with stable structure through shape design. The modular structure comprises different size metal type / non-metal type modules and chilling modules. Each module can be replaced according to the used materials of the cavity and the core. The application can integrate multiple casting environments, and can be conveniently adjusted according to the corresponding environment, and simultaneously acquire the heat exchange coefficients under multiple environments, thereby shortening the determination time of the heat exchange coefficients and improving the work efficiency.