257results about "Calorimeter" patented technology

The invention relates to the technical field of heat meter performance test and operation and maintenance management, in particular to a heat supply working condition multi-source parameter real-time acquisition heat meter performance intelligent analysis system, which comprises a working condition simulation subsystem, a multi-source parameter real-time acquisition module, an intelligent analysis engine and data management and visual interaction interface, and a digital twinning virtual calibration module. Multi-dimensional variable working conditions are constructed through the working condition simulation subsystem, the acquisition module realizes high-precision synchronous acquisition, the intelligent analysis engine integrates multiple algorithms to complete data fusion, performance prediction, health degree evaluation and fault early warning, and the data management module realizes whole-process closed-loop management. The heat meter test accuracy and the working condition coverage are improved, intelligent analysis and accurate calibration are achieved, the operation and maintenance cost is reduced, and stable and efficient operation of a heat supply system is guaranteed.

To provide a technique capable of accurately estimating heat energy consumption of a heat utilization facility without requiring an expensive flowmeter and without stopping a factory.SOLUTION: An estimation device (1) includes an estimation unit (11) configured to acquire a first measurement value from each of a plurality of heat utilization facilities (21 to 22) and calculate an estimation value of thermal energy consumption of each of the plurality of heat utilization facilities (21 to 22) from the first measurement value, a correction value calculation unit (12) configured to calculate a correction value from an analysis value of a drain flow rate of an entire plant (2) including the plurality of heat utilization facilities (21 to 22) calculated by a simulator (3) and an actual measurement value of the drain flow rate of the entire plant (2), and an estimation unit (13) configured to estimate the thermal energy consumption of each of the plurality of heat utilization facilities (21 to 22) by correcting the estimation value using the correction value.SELECTED DRAWING: Figure 4

The application discloses a kind of lithium battery internal temperature and heat generation power online detection system and method based on heat flow and surface temperature, method includes: step 1: with the flexible heat flow sensor layer of high-precision surface temperature sensor attached is placed in isothermal environment cabin;Step 2: control isothermal environment cabin temperature to set value;Step 3: lithium battery is applied electric load;Step 4: real-time synchronous acquisition heat flux density signal and temperature signal on the surface of lithium battery;Step 5: according to heat flux density signal, the instantaneous total heat generation power of battery is calculated;Step 6: combined with temperature signal, ambient temperature and instantaneous total heat generation power, based on heat model inversion, the internal temperature of battery is calculated.The application directly measures the heat flux density and temperature on the surface of battery, combined with heat conduction model, and the instantaneous heat generation power of battery is calculated in real time, high-precision, non-invasively and the internal temperature thereof is inverted, suitable for lithium battery thermal behavior analysis, state evaluation and safety warning.

The utility model relates to the technical field of thermal radiation testing equipment, and particularly provides a surface thermal radiation testing device, which comprises a fixed bracket, a heating substrate and a first receiving substrate, and is characterized in that the fixed bracket is provided with a hollow cavity; the emission substrate is vertically arranged in the hollow cavity; the emission substrate is used for emitting heat radiation; the first receiving substrate is located on one side of the transmitting substrate, and the first receiving substrate is vertically arranged in the hollow cavity; a first test space is formed between the transmitting substrate and the first receiving substrate; the transmitting substrate and the first receiving substrate respectively form a thermocouple structure, and the surface thermal radiation value of the to-be-detected material placed in the first testing space is obtained through comparison and calculation. The transmitting substrate and the first receiving substrate of the surface heat radiation testing device are both vertically arranged in the hollow cavity, and the centers of the transmitting substrate and the first receiving substrate are positioned on the same axis and are aligned, so that the result of each test can be repeated.

Fluid meter, namely heat quantity meter (1) for recording the quantity of cold and / or heat of a fluid, for installation in a supply line (20) or return line (21) of a fluid piping system, comprising - a connection housing (2), - a measuring arrangement for determining flow rates, - a control and evaluation unit (3) as well as - a first temperature sensor (4) which is intended for installation in the flow line (20) and is intended there for determining the temperature in the flow line (20), - a second temperature sensor (5), which is intended for installation in the return line (21) and is intended there for determining the temperature in the return line (21), - wherein a means for determining the temperature of the connection housing (2) of the fluid meter is provided, - wherein a temperature difference between the temperature of the connection housing (2) of the fluid meter and at least one of the temperatures of the first (4) and second temperature sensor (5) can be determined, wherein the control and evaluation unit (3) determines, on the basis of the determined temperature difference between the temperature of the fluid meter and at least one of the temperatures of the first and second temperature sensors (4, 5), which of the temperature sensors (4, 5) is installed in the supply line (20) or return line (21), wherein the measuring arrangement for determining the flow rate is provided as a means for determining the temperature of the connection housing (2) of the fluid meter, where the temperature sensors (4, 5) are automatically assigned to the flow (20) or return (21), wherein the temperature of the connection housing (2) of the fluid meter is determined on the basis of a temperature-dependent transit time of an ultrasonic signal in the fluid, and wherein a look-up table is provided in which the transit times of the ultrasonic signal in the fluid are stored as a function of the corresponding temperature of the fluid and / or the connection housing (2) of the fluid meter and the temperature to be determined of the connection housing (2) of the fluid meter can be derived from the transit time of the ultrasonic signal and the look-up table.

The present invention relates to an automatic system (1) and a method for monitoring the state of thermal insulation for buildings and infrastructures (2). The system comprises: - at least one internal measuring device (10) and one external measuring device (20), applied to the walls; - at least one Gateway (30) for a long-range communication system (Lo.Ra. or similar); - at least one Server (40) for automatic data storage and analysis. The measuring devices (10, 20) acquire and evaluate the thermal conductivity of the walls on which they are applied, measuring the thermal conductivity at preset intervals through a set of sensors that allow the appropriate corrective measures determined by wind and air humidity (including the possible effects of rain) to be applied. Once the data has been acquired and the thermal conductivity calculation has been carried out (both with the theoretical formulas and by applying the convection correctives), the internal device (10) sends the data to the Server (40), which processes them, determining the variations in thermal conductivity through regression algorithms, in order to estimate the rate of deterioration of the insulation. If the deterioration rate exceeds the standard, estimated from previous data, the system sends an alarm.

A system for the simultaneous thermal analysis of a plurality of single samples of, in particular biological, material by means of differential scanning calorimetry, with at least one sample carrier having several sample vessels, wherein a single sensor for measuring an amount of heat emitted or absorbed by the single sample during the thermal analysis is assigned to each sample vessel; a heating and / or cooling unit for the simultaneous temperature application of the single samples included in the sample vessels, with a receptacle for the at least one sample carrier; a measuring instrument, which is connected to the single sensors and which is formed to simultaneously capture a measuring value for the emitted or absorbed amount of heat of the single samples during the thermal analysis, a sample carrier, in particular for use in this system as well as a method for the simultaneous analysis of a plurality of single samples or groups of single samples by means of differential scanning calorimetry.

The invention relates to the technical field of material performance testing, and discloses a silica gel adsorbent testing method and system.The method comprises the steps that a silica gel adsorbent sample is placed in a testing cavity, a testing environment is configured, and temperature change data and adsorption isothermal data of the testing cavity in the adsorption process are monitored; the method comprises the following steps: sampling a sample, synchronously acquiring initial adsorption heat distribution and initial total pore volume of the sample, performing adsorption and desorption stress circulation on the sample, monitoring post-circulation adsorption heat distribution and post-circulation total pore volume of the sample under the adsorption and desorption stress circulation condition in real time, performing adsorption heat difference calculation on the initial adsorption heat distribution and the post-circulation adsorption heat distribution, and calculating the adsorption heat difference between the initial adsorption heat distribution and the post-circulation adsorption heat distribution. The adsorption heat change index of the sample is obtained, the pore volume retention rate of the total pore volume relative to the initial total pore volume after circulation is evaluated, and the stability evaluation parameters of the sample are generated based on the adsorption heat change index and the pore volume retention rate. The performance evolution process under the actual working condition is effectively simulated, and the accuracy, sensitivity and predictability of testing are remarkably improved.

The application belongs to the technical field of thermal field measurement under high temperature environment, and particularly relates to a high-temperature thermal field direct measurement sensor array. In use, thermal radiation is irradiated on a heat-absorbing layer, the heat-absorbing layer absorbs the thermal radiation and transmits the heat to a high-conductivity micro region, so that a transverse thermoelectric voltage is generated between a first electrode and a second electrode, and the heat flux density at the high-conductivity micro region is calculated according to the transverse thermoelectric voltage; the temperature at the high-conductivity micro region is calculated according to the resistance between a third electrode and a fourth electrode, the heat flux density at the high-conductivity micro region is calibrated through the temperature at the high-conductivity micro region, and the spatial distribution characteristics of the heat flux are inversed by comprehensively considering the heat flux and the temperature at multiple high-conductivity micro regions. The high-temperature thermal field direct measurement sensor array can output the spatial distribution of two modes of heat flux density and temperature, and realize high-precision spatial distribution measurement of the thermal field.

The application discloses a heat meter online fault diagnosis method and system, and relates to the technical field of energy metering.The system runs, real-time data collection and preprocessing are realized through integrated sensor groups, key features are extracted to form a feature vector FVEC, and an online anomaly detection algorithm and a fault type judgment model are used to accurately calculate an anomaly detection index AS and a fault feature probability index TYP.These data can not only reflect the health status of the system in real time, but also further optimize the response strategy and fault judgment by executing an iteration module, so that the system has the ability of self-diagnosis and adaptive adjustment.This optimization process can effectively solve the problem that the traditional heat meter system cannot realize online real-time processing and fault detection, improve the accuracy and response speed of fault identification, avoid equipment damage or energy waste caused by delayed detection, and further ensure the continuous and stable operation of the system.

The present application discloses an improved thermopile laser sensor apparatus and methods of use. In one embodiment, the apparatus includes a sensor body having a first sensor body recess and a second sensor body recess formed therein, with a substrate positioned in the first sensor body recess in thermal communication with the sensor body. The substrate includes at least one absorber attached thereto and configured to absorb a portion of a beam of laser energy. A first thermal sensor in thermal communication with the substrate and the sensor body may be formed on or attached to the substrate. A second thermal sensor in thermal communication with the sensor body may be positioned in the second sensor body recess. A thermal barrier configured to reduce the rate of transfer of thermal energy from the substrate to the second thermal sensor may be positioned between the substrate and the second thermal sensor.

A system for analyzing laser beam characteristics at field of view extremities in high-speed laser motion systems, wherein the high-speed laser motion systems comprise a laser that generates a non- stationary laser beam and a build platform positioned at a predetermined location relative to the non- stationary laser beam, comprising a known or pre-defined field of view of the laser, wherein the laser beam characteristics are known or determined at a center location of the field of view; and a plurality of pin-hole sensors mounted at the field of view extremities, wherein each pin-hole sensor measures the laser beam characteristics at the field of view extremities, and wherein differences between the laser beam characteristics at the center location and the laser beam characteristics at the field of view extremities are captured and accounted for in the high-speed laser motion system during processing.

This invention relates to a high-voltage cable for smart grids, applied in the field of cable technology. It includes a cable body and a heat monitoring mechanism. The heat monitoring mechanism comprises a monitoring cable segment cut from the cable body, a sealed monitoring cylinder positioned between the cable body and the monitoring cable segment, and a movable monitoring plate slidably and sealed to the sealed monitoring cylinder. An upper heat-conducting rod and a lower heat-conducting rod are respectively embedded at both ends of the sealed monitoring cylinder. A distance sensor is fixedly installed inside the sealed monitoring cylinder. The heat monitoring mechanism also includes a monitoring and analysis system. The heat monitoring mechanism can directly monitor the heat generation of the conductor in real time and automatically issue an alarm when abnormal heat generation is detected. Compared to the traditional method of monitoring cable temperature using temperature sensors, it effectively eliminates the interference and influence of environmental factors on monitoring, greatly improving the accuracy and reliability of monitoring, and thus significantly enhancing the safety of the high-voltage cable.

The utility model relates to the field of sheathed thermocouples, and particularly discloses a constant temperature device for sheathed thermocouple calibration, which comprises a calibration furnace; the furnace tube is arranged in the calibration furnace; the temperature equalizing block is arranged in the center of the furnace tube; measuring ends of a thermocouple to be calibrated and a standard thermocouple are mounted in the temperature equalizing block; the adjusting assembly is used for installing the temperature equalizing block in the furnace tube; the adjusting assembly comprises a first positioning disc arranged in the furnace tube and fixedly connected with the temperature equalizing block; the second positioning disc is arranged on the calibration furnace; the plugging disc is fixedly arranged on the second positioning disc, and the plugging disc is located in the furnace tube; the moving rod penetrates through the second positioning disc, and one end of the moving rod extends into the first positioning disc. The method has the effect of improving the calibration efficiency.

A temperature sensing system includes absolute temperature sensor(s) and / or thermopiles that form concentric geometries and are uniform in height. In some examples, the temperature sensing system can determine internal body temperature and / or ambient temperature based at least on a thermal gradient associated with the inner thermopile, a thermal gradient associated with the outer thermopile, a lateral temperature difference between the inner and the outer thermopiles, and an absolute temperature. In some examples, the temperature sensing system can determine the internal body temperature and / or ambient temperature using at least four absolute temperature sensors forming a concentric structure.

The invention discloses a calorimeter and method for FLASH radiotherapy rays. The calorimeter comprises a calorimetric core, a jacket layer and a shielding layer. The calorimetric core is an absorber of FLASH radiotherapy rays, and the calorimetric core is nested in a first space in the jacket layer in a manner that a first interval exists between the calorimetric core and the jacket layer and the calorimetric core and the jacket layer are not in contact with each other; the jacket layer is nested in a second space in the shielding layer in a manner that the jacket layer and the shielding layer have a second interval and are not in contact with each other; no non-gas filler exists in the first interval and the second interval. Through the arrangement, the calorimeter aims to meet the strict requirements of ultrahigh dose rate and millisecond irradiation of FLASH radiotherapy rays, the defects that solid filler hinders heat transfer and increases heat capacity in the prior art are overcome, through the design that three layers do not make contact with each other and are free of solid filling, heat loss and heat conduction lag are reduced, heat is concentrated on the calorimetric core, and the heat loss is reduced. Meanwhile, the overall heat capacity is reduced, the millisecond-level thermal response speed is guaranteed, and high accuracy and traceability of dose measurement are guaranteed.

Described is a differential scanning calorimeter (DSC) instrument capable of performing analyses of multiple samples at the same time. Some embodiments of DSC instruments described herein include a thermal substrate that provides a substantially uniform temperature across a surface of the substrate. A plurality of DSC units is in thermal communication with the substrate, for example, by mounting the units directly to the surface of the substrate. Each DSC unit includes a second thermal substrate for further thermal isolation, and a reference platform and sample platform to receive a reference cell and a sample cell, respectively. A thermoelectric device is disposed between each platform and the second thermal substrate. Optionally, the reference and sample cells may be disposable chips that can be discarded after measurement are performed, thereby reducing or eliminating the need to clean instrument components to prevent cross-contamination for subsequent instrument operation.

The present disclosure provides a core temperature sensing assembly for measuring a core temperature of an object when positioned on a surface of the object. The sensing assembly uses a heat flux sens

The invention belongs to the technical field of central air conditioner charging, and particularly relates to a central air conditioner charging system based on time-energy double factors, which comprises a data acquisition module, a central management platform and an intelligent control module which are connected in sequence, the air conditioner operation time and actual energy consumption data are accurately collected, fair and accurate charging is achieved through a scientific and reasonable two-factor fusion calculation mode, meanwhile, a user is stimulated to save energy, the energy utilization efficiency is improved, and the energy utilization efficiency is improved by comprehensively considering the two core factors of time and energy. The system can accurately reflect the actual use condition of the central air conditioner by the user. According to the method and the system, use scenes with different time periods and different energy consumption can be reasonably embodied in cost calculation, unfairness of a traditional charging mode is thoroughly avoided, disputes caused by charging problems among users are effectively reduced, and a harmonious use environment is created.

The invention discloses a lithium battery internal temperature and heating power online detection system and method based on heat flow and surface temperature. The method comprises the following steps: step 1, placing a lithium battery attached with a high-precision surface temperature sensor and a flexible heat flow sensor layer in an isothermal environment chamber; 2, the temperature of the isothermal environment chamber is controlled to be stabilized to a set value; 3, applying an electric load to the lithium battery; 4, synchronously collecting a heat flux density signal and a temperature signal on the surface of the lithium battery in real time; 5, calculating the instantaneous total heating power of the battery according to the heat flux density signal; and 6, combining the temperature signal, the environment temperature and the instantaneous total heating power, and calculating the internal temperature of the battery based on thermal model inversion. By directly measuring the heat flux density and temperature of the surface of the battery and combining the heat conduction model, the instantaneous heating power of the battery is calculated in a real-time, high-precision and non-invasive manner, the internal temperature of the battery is inverted, and the method is suitable for thermal behavior analysis, state evaluation and safety early warning of the lithium battery.

The invention provides a preparation method of a thermal protection coating on the surface of a copper / diamond composite material, and relates to the technical field of thermal protection coating materials.The preparation method comprises the steps that S1, the surface of the copper / diamond composite material is pretreated; s2, fixing the copper / diamond composite material, starting supersonic spraying equipment, and feeding powder to be sprayed after flame is uniform; s3, spraying the copper / diamond composite material in a reciprocating manner, and pausing after spraying for a certain pass; and S4, the step S3 is repeated until the coating with the required thickness is obtained on the surface of the copper / diamond composite material matrix. The method is short in process, simple in process and suitable for large-scale production, the service time of the copper / diamond composite material under the rocket tail flame ablation condition can be prolonged, and it is guaranteed that complete heat flow data can be rapidly obtained during heat flow monitoring.

The invention discloses a thermal performance detection device, the thermal performance detection device comprises a detection box, a shielding assembly and a support assembly, the detection box is provided with an interface for connecting an instrument, the shielding assembly is arranged on the detection box, the shielding assembly has a first state and a second state, in the first state, the shielding assembly is unfolded, and in the second state, the shielding assembly is unfolded; in the second state, the shielding assembly is folded so that the interface can be connected with an instrument, the supporting assembly comprises a first supporting piece and a second supporting piece, the first supporting piece and the second supporting piece are arranged below the detection box and are arranged at intervals in the length direction of the detection box, and the first supporting piece is arranged on one side close to the interface; the first supporting piece stretches and retracts in the vertical direction, in the first state, the first supporting piece stretches to lift the detection box, and in the second state, the first supporting piece is shortened to support the detection box. The thermal performance detection device provided by the invention has a simple structure and can shield the interface.

A water heating system 1 comprises a vessel 2 holding water and receiving heat from heat sources 12, 20. A temperature sensor 24 comprises a plurality of sensing elements (102, Fig. 10) and senses a t

A system for determining a coefficient of heat exchange between a fluid and a medium at a surface in contact with the fluid, comprising a temperature measurement device comprising: a multilayer structure comprising: four thin ceramic layers, and three metal tracks, a resistive temperature sensor attached to the multilayer structure and intended to be in contact with the fluid to measure a fluid temperature TF, the system further comprising a computer.

The invention belongs to the technical field of sensor testing, and particularly relates to a device and a method for testing a temperature sensor and a vehicle body attitude sensor, the device comprises a testing case, a computer and a connecting cable, the connecting cable is used for connecting the sensor with interfaces on the testing case and the computer, the testing case comprises a power supply module, a power supply module and a control module, the power supply module is used for starting the testing case and supplying power to sensor testing. According to the invention, a temperature sensor and a vehicle body attitude sensor can be efficiently and rapidly tested, and tests on whether the sensors work normally and have errors during spare part acceptance can be realized, so that related tests before sensor assembly and spare part acceptance are more accurate and simpler; unnecessary repeated assembly and disassembly and acceptance cost caused by failure in accurate fault positioning and factory acceptance in the debugging process is reduced, the working efficiency is improved, the working quality is improved, the mode of'testing products by products' in the past is broken through, and the specialty and universality of testing are remarkably improved.

The utility model belongs to the technical field of temperature control equipment, and discloses a constant-temperature circulating water tank for a calorimeter. The constant-temperature circulating water tank for the calorimeter comprises a main water tank and an auxiliary water tank, the auxiliary water tank is installed on the side wall of the main water tank, a plurality of first partition plates with holes are arranged in the main water tank from top to bottom, and a water injection opening and an overflow opening are formed in the top of the main water tank and the top end of the side wall of the main water tank respectively. A circulating water outlet and a circulating water inlet are respectively formed in the bottom and the middle of the side wall of the main water tank. According to the constant-temperature circulating water tank for the calorimeter, the auxiliary water tank is embedded in the main water tank, serves as a temporary storage space to store hot water discharged by the calorimeter and is only in small-range contact with normal-temperature water in the main water tank, the water temperature of the water in the main water tank is regulated and controlled by the refrigerating mechanism and the heating element, and cooling of the hot water and storage of the normal-temperature water are isolated; the water treatment efficiency is improved, the time interval between experiments is reduced, and the problems in the background technology are solved.

The present invention provides a thermoelectric device in which a reduction in size is possible using a simple configuration. The thermoelectric device 1X is provided with a sheet-shaped or plate-shaped thermoelectric conversion film 15 having a thermoelectric conversion element comprising a material exhibiting an abnormal Nernst effect, and a high-thermal-conductivity insulating film 16X provided on at least a first surface of the thermoelectric conversion film 15 and made of an insulator having a thermal conductivity higher than the material constituting the thermoelectric conversion element. The thermoelectric device is further provided with a catalyst part comprising a catalyst that can be applied to a gas sensor and that reacts to the heat of a gas. The catalyst part is provided, so as to face a gas flow path, on at least a partial region of the surface of the high-thermal-conductivity insulating film.

The application provides a device for measuring slag water evaporation, comprising: a slag quenching tank, an inner cavity of the slag quenching tank forms a slag pool; a slag collecting tank, the slag collecting tank is provided with a slag inlet pipe, a slag outlet pipe, a water supplement pipe and a water outlet pipe, the slag inlet pipe is communicated with the slag pool of the slag quenching tank, the water supplement pipe is provided with a first thermometer and a first flowmeter; a hydraulic circulator, the hydraulic circulator is communicated with the water outlet pipe through a first connecting pipe, the hydraulic circulator is communicated with the slag pool of the slag quenching tank through a second connecting pipe, the hydraulic circulator is provided with a slag water outlet pipe, the slag water outlet pipe is provided with a second thermometer and a second flowmeter; a cooler, the cooler is communicated on the second connecting pipe, the cooler is provided with a third thermometer and a third flowmeter on the water outlet pipe; a controller. The technical scheme of the application effectively solves the problem of water vapor generated in the liquid slag discharge process in the related art, relies on experience to estimate the heat loss, and has a large error.

A method for measuring degradation of a thermal resistance between a power semiconductor and a heat sink of a power module assembly where the power semiconductor has an internal gate resistance, including measuring a first initial parameter related to the power semiconductor junction temperature, and heating the internal gate resistance and measuring a second initial parameter, related to the junction temperature after the heating, after discrete time intervals during the lifetime of the power module assembly measuring a first subsequent parameter related to the power semiconductor junction temperature heating the internal gate resistance and measuring a second subsequent parameter, related to the junction temperature after the heating, and calculating a thermal resistance degradation, ΔRTh with the subsequent parameters related to junction temperature and the initial parameters and raising a fault flag in case ΔRTh is above a limit value.