12results about How to "Improve temperature control accuracy" patented technology

The invention provides a casting system temperature intelligent control method which comprises the following steps: acquiring a casting mold characteristic area, and setting a thermocouple in the mold characteristic area based on casting structure characteristics; a random forest model is established according to thermocouple temperature measurement results and casting quality detection results, recursive feature elimination is carried out, correlation between thermocouple temperature measurement data and casting quality is discriminated, the number of thermocouples is optimized, and the thermocouples are screened; and analyzing according to the temperature data of the thermocouple temperature measuring points, the cooling process parameters and the corresponding casting quality, constructing the relationship among the cooling process parameters, the initial temperature of each mold thermocouple and the casting quality through a gradient lifting decision tree model, and controlling the temperature of the casting system based on the relationship. By arranging the thermocouple and based on the random forest model and the gradient boosting decision tree model, the temperature control accuracy is improved, the temperature is adjusted in time, and the purposes of optimizing the casting process, reducing defects and ensuring high-quality manufacturing of the aluminum alloy hub are achieved.

The invention provides a mattress multi-partition temperature cooperative control method and system, and the method comprises the steps: dividing a mattress into a plurality of temperature control regions, and each region is provided with a temperature sensor and a pressure sensor, so as to respectively collect the temperature and pressure data of the surface of the mattress. Based on the collected pressure data, the system recognizes a user body part corresponding to each temperature control area, and the mattress surface temperature of the area is regarded as the indirect body surface temperature of the corresponding body part. And calculating the temperature demand of each temperature control area by using the identified body part and indirect body surface temperature, and setting an initial temperature control strategy. An initial strategy comprises a combined regulation and control mode of a water circulation system and an electric heating element, rapid and large-amplitude temperature regulation is achieved through the water circulation system, and temperature fine adjustment is conducted through the electric heating element. And when any temperature control area executes the initial temperature control strategy, smooth temperature transition among the areas is realized by linkage of temperature adjustment of the adjacent areas and synchronous adjustment of the water circulation flow velocity.

The present invention discloses a butterfly valve shaft axial seal test system and a test method thereof, wherein a first pneumatic butterfly valve, an environmental simulation component, a sensor component, and a second pneumatic butterfly valve are sequentially arranged on a main pipe, a gas generating device is connected to the main pipe via a first pneumatic three-way ball valve, and a polluted gas treatment device is connected to the main pipe via a second pneumatic three-way ball valve. The first pneumatic butterfly valve and the second pneumatic butterfly valve are both axially provided with an axial seal component and an axial seal cover sleeved outside the axial seal component, a first smoke sensor is arranged inside the axial seal cover, and the first smoke sensor is connected to a central controller signal. An axial seal cover is installed outside the axial seal component to form a closed space, in which a first smoke sensor is installed to detect the concentration of particulate matter to judge the axial sealability of the valve shaft, and the entire system only needs to prepare the test gas once to test the sealability under different temperatures and pressures, which is more energy-efficient and reduces costs.

The application relates to the technical field of semiconductor temperature control, and discloses a processing method and device for automatic heat exchange based on a semiconductor and a wearable device, which realizes intelligent dynamic temperature adjustment and long-time temperature preservation, improves human body temperature control accuracy, can continuously cool in summer, effectively reduces the sweating rate of a user, can heat in winter, significantly improves the thermal and wet comfort of a human body surface, reduces physical discomfort in a high-temperature or low-temperature environment for a long time, reduces the risk of heatstroke or frostbite, and thus improves work concentration and efficiency; through optimization of the airtightness of liquid cooling circulation and the safety design of semiconductor temperature adjustment, the electric leakage condition is reduced, and the personal safety of an operator during operation is effectively ensured.

The utility model relates to the technical field of elasticizers, and discloses an integrated elasticizer for compounding nylon yarns and cotton silks, which comprises a plurality of creels arranged at intervals in an array and a plurality of winding creels arranged at intervals in an array, and a high-temperature heating box and a twister are arranged between the creels and the winding creels. Nylon yarn penetrates through the high-temperature heating box to be heated, is twisted on the twister to form certain elasticity and then is rewound to the yarn winding frame, two heating rollers rotating oppositely are arranged in the high-temperature heating box, and the nylon yarn is wound around the heating rollers in an S shape to be heated. Compared with a hot air heating mode in the prior art, the structure is higher in heat efficiency, lower in heat energy loss, good in heating effect, high in temperature control accuracy and not prone to being affected by the outside and causing too large temperature fluctuation.

The utility model relates to the technical field of peristaltic pumps, in particular to a dripping liquid temperature control assembly for a peristaltic pump. The device comprises a temperature control structure, the temperature control structure comprises a conveying pipe and a guide pipe, a sleeve is arranged on the axial side face of the conveying pipe, a cavity is formed between the conveying pipe and the sleeve, a water inlet is formed in the lower portion of the outer wall of the sleeve, a water outlet is formed in the upper portion of the outer wall of the sleeve, and the water inlet and the water outlet are both communicated with the cavity and jointly connected with a circulating water device. The end of the guide pipe is movably connected with the end of the conveying pipe. The guide pipe comprises a mounting pipe and a connecting pipe. According to the utility model, the delivery pipe and the sleeve form a double-layer glass tube structure, and an external circulating water device is combined, so that the temperature of a dropwise-added monomer can be accurately controlled, the influence of temperature fluctuation on an experimental result is avoided, and meanwhile, the design of the double-layer glass tube structure effectively reduces the loss of heat and improves the accuracy of temperature control.

The application discloses an intelligent air conditioner cooling method and system, and belongs to the technical field of air conditioning. In view of the problems of the existing whole-house centralized air conditioner temperature control without partition adaptation capability and the disorderly diffusion of cold quantity, the application provides an air conditioner cooling control method, which comprises the following steps: collecting the air outlet wind speed of a cabinet, the space natural wind speed and the required temperature value of the heat exchange temperature difference, transmitting the collected data to a working condition recognition unit, so as to determine the working condition mode of the current cabinet according to the wind speed difference and the heat exchange temperature difference; obtaining the real-time active power and temperature data of the cabinet according to the working condition mode, calculating the real-time heat load of a single cabinet, dividing different heat emission partitions according to the heat load and outputting the cold quantity distribution result of each partition; and controlling the temperature control execution unit and the double-cavity ceiling cold-heat isolation unit to supply cold to each partition according to the cold quantity distribution result. Through working condition recognition, dynamic partition cooling and double-cavity ceiling cold-heat isolation, the application realizes the on-demand directional delivery of cold quantity, and improves the cold quantity utilization rate.

The invention provides a heater temperature control parameter calibration method for atomization equipment and a related device, and relates to the technical field of electronic atomization equipment, and the specific implementation scheme is as follows: in the process of controlling the operation of a heater by adopting a TCR temperature control model, when the actual resistance value of the heater reaches a target resistance value corresponding to a preset target heating temperature, the temperature control parameter of the heater is calibrated; acquiring the actual sampling temperature of the temperature sensor; judging whether a preset heater temperature control parameter calibration condition is met or not according to the actual sampling temperature and the target heating temperature; and if the heater temperature control parameter calibration condition is met, target temperature control parameters associated with the TCR temperature control model are calibrated. Through the implementation of the scheme, when it is determined that the temperature control of the heater of the electronic atomization equipment is inconsistent based on the detection value of the temperature sensor, parameter calibration is carried out on the originally configured TCR temperature control model, the temperature control accuracy of the electronic atomization equipment is improved, and the user suction experience of the electronic atomization equipment is effectively guaranteed.

The present invention discloses a temperature control method, device, equipment and medium for heat pump air conditioner of electric vehicle. The method obtains the expected operating parameters through the ideal set temperature, actual ambient temperature, BP neural network model and PID controller, controls the compressor according to the expected operating parameters; obtains the actual operating parameters of the compressor and inputs them into the heat pump air conditioner model to obtain the actual output temperature; calculates the performance index parameter when the current system time meets the set conditions; if the performance index parameter does not meet the adaptation conditions, a new connection weight set is obtained by using a genetic algorithm to update the BP neural network model, and the actual ambient temperature is updated, and the above steps are repeated until the performance index parameter meets the adaptation conditions, so as to obtain the optimal BP neural network model to perform corresponding temperature control on the heat pump air conditioner of electric vehicle. The present invention effectively controls the temperature of the heat pump air conditioner based on the genetic algorithm, BP neural network and PID control algorithm, so that the control effect is more adaptable to environmental changes.

The invention discloses a temperature regulation and control method, device and equipment and a medium, relates to the technical field of temperature control, and is applied to a temperature regulation and control system. The temperature regulation and control system comprises a module to be subjected to temperature control, a semiconductor cooler and auxiliary temperature control equipment in contact with a non-temperature-control surface of the semiconductor cooler, and the method comprises the following steps: controlling a heat transmission direction and a heat transmission quantity between a temperature control surface and the non-temperature-control surface through the semiconductor cooler based on acquired current polarity and current magnitude, the temperature of the temperature control surface is regulated and controlled through heat transmission between the temperature control surface and the non-temperature control surface based on the heat transmission direction and the heat transmission quantity; regulating and controlling the temperature of the module to be subjected to temperature control based on the temperature control surface; and the auxiliary temperature control equipment receives the heat of the non-temperature-control surface, or transmits the heat of the auxiliary temperature control equipment to the non-temperature-control surface. Rapid and effective temperature control can be realized so as to improve the multi-temperature-point calibration efficiency of the module to be subjected to temperature control.

The application provides an arsenic vapor crystallization device and a control method. The arsenic vapor crystallization device comprises a crystallization cabinet, a plurality of layers of crystallization boxes arranged in the crystallization cabinet, a plurality of groups of crystallization pieces, an outer cylinder and a temperature control device. The lower part of the crystallization box is provided with an air inlet pipeline, and the top end is provided with an air outlet pipeline. The plurality of layers of crystallization pieces are arranged in the height direction to carry arsenic vapor crystal nuclei and adhere to crystals. The outer cylinder surrounds the crystallization box and is provided with a temperature control medium. The temperature control device can independently control at least two temperature control regions of the crystallization box divided in the longitudinal direction, so as to realize precise partition temperature control. The control method adopts a cyclic step logic based on the partition structure, sets a cycle variable M, adjusts the Mth temperature control region to the arsenic vapor crystallization temperature, keeps the remaining regions at the vapor flow temperature, and cyclically switches until the crystallization of all regions is completed. The application realizes directional layered crystallization of arsenic vapor, effectively improves the crystallization efficiency and purity, reduces manual intervention through automatic cyclic control, guarantees the consistency of the crystallization quality, and is suitable for efficient and precise arsenic vapor crystallization production scenes.

The utility model belongs to the technical field of powder metallurgy, and particularly relates to a ceramic pad for bearing a powder metallurgy sintered part. The ceramic pad is integrally formed by a ceramic material and comprises a bottom supporting platform and a group of side supporting blocks arranged around the periphery of the bottom supporting platform; the bottom supporting platform is provided with an annular surrounding edge and a network supporting body connected in an area defined by the surrounding edge. The upper side of the network support body is provided with a flat bearing surface for bearing the powder metallurgy sintered part, and a plurality of vertically through heat exchange holes are further distributed in the network support body; the side supporting blocks are arranged at intervals, the ends of the side supporting blocks are flush, and when the ceramic pads are stacked, the side supporting blocks bear the surrounding edge of the upper ceramic pad. A heat exchange notch is formed between every two adjacent side supporting blocks. The ceramic pad has excellent high temperature resistance, heat exchange efficiency, structural strength, bearing capacity and stacking stability in the sintering process of powder metallurgy parts, the influence of a sintering furnace on blank sintering can be effectively avoided, and the quality and production efficiency of sintered parts are remarkably improved.