32results about How to "High temperature control accuracy" patented technology

The application provides an electric heating device for a strip steel heat treatment furnace, which comprises an electric heating radiation tube mechanism and an atmosphere protection cover mechanism, the electric heating radiation tube mechanism is horizontally suspended in the strip steel heat treatment furnace, one end of the electric heating radiation tube mechanism is fixed on a side wall of the strip steel heat treatment furnace, the end of the electric heating radiation tube mechanism is exposed to the strip steel heat treatment furnace, and the other end of the electric heating radiation tube mechanism extends into the strip steel heat treatment furnace, and the atmosphere protection cover mechanism covers the end of the electric heating radiation tube mechanism connected with the strip steel heat treatment furnace and is fixed on the wall of the strip steel heat treatment furnace, the electric heating device has the advantages of low cost, high temperature control precision, good energy-saving effect, long service life and low maintenance cost.

The application discloses a hot-rolled strip coiling temperature control method and related equipment, and relates to the technical field of hot rolling. The method comprises the following steps: acquiring temperature data in the width direction of the strip; normalizing and polynomial fitting the temperature data to calculate a center point temperature value of the width of the strip; and adjusting the opening and closing state of a cooling zone valve based on the center point temperature value to control the coiling temperature of the strip. The application can more accurately reflect the actual temperature condition of the strip, effectively overcomes the problem that the traditional point-type pyrometer measurement is easily affected by the shape and surface of the strip and is distorted, and thus improves the mechanical properties and organizational properties of the strip and guarantees the product quality.

This utility model belongs to the field of tobacco curing technology and discloses an automatic feeder. The automatic feeder includes a casing, a hopper, a conveying trough, a conveying mechanism, and a control component. The casing includes a first chamber and a second chamber; the hopper is located on the top of the casing and communicates with the first chamber; the conveying trough is located on the side of the casing near the first chamber and communicates with the first chamber; the conveying mechanism includes a conveying component and a power component. The conveying component is located in the first chamber to convey fuel, and the power component is located in the second chamber and connected to the conveying component to drive the conveying component; the control component includes a controller and a curing barn controller, and the controller is communicatively connected to both the power component and the curing barn controller. In this application, the controller dynamically adjusts the power of the power component based on the curing barn temperature feedback from the curing barn controller, thereby controlling the fuel conveying speed, improving the temperature control accuracy and tobacco quality during tobacco curing, reducing manual labor intensity, and increasing tobacco curing efficiency.

The utility model discloses a coal gas pressure stabilizing control device for a blast furnace coal injection and pulverizing system. A waste gas pipeline is provided with a waste gas fan, a waste gas electric regulating valve, a waste gas flowmeter and a waste gas pressure transmitter; a coal mill inlet temperature thermal resistor and a coal mill inlet pressure transmitter are arranged on the outlet pipeline; a coal gas pressure transmitter, a coal gas flowmeter and a coal gas electric control valve are arranged on the coal gas pipeline, and an outlet temperature thermocouple and an outlet pressure transmitter are further arranged on the outlet pipeline; a waste gas carbon monoxide detector and a waste gas oxygen content detector are arranged on the waste gas pipeline; and a gas pneumatic quick switching valve, a gas electric blind plate valve, a gas electric butterfly valve and a carbon monoxide heat conduction type gas analyzer are arranged on the gas pipeline, and the number of the gas electric control valves is larger than or equal to two. According to the utility model, the gas regulating valve or the bypass pipeline three-valve group is additionally arranged, so that a monitoring instrument is perfected, and the gas flow and pressure are accurately controlled.

The utility model provides a kind of wafer temperature uniform control and automatic transfer integrated device in hot plate air extraction process, including disc-shaped cavity main body and automatic wafer transfer assembly, cavity main body top is plane structure, hot plate upper surface is perpendicular to the central axis of cavity main body, the sealing disc is coaxially arranged with cavity main body;It further includes air inlet and air outlet, air inlet is circularly opened in the sidewall top of the cavity main body;Air outlet is opened in the top surface center of the cavity main body.The utility model determines suitable cavity wall surface material by optimizing cavity structure, reasonably selecting air inlet and air outlet position, solves the problem of wafer temperature uneven in prior art, and realizes wafer automatic taking through intelligent automatic wafer transfer assembly structure under the form of not changing cavity structure, improves the quality and efficiency of semiconductor wafer manufacturing.

The utility model provides a high and low temperature impact test box, including impact test box, the inside of impact test box is high temperature test area and low temperature test area, is provided with test basket in test area, test basket is connected with the lifting assembly behind impact test box inside, is used for drive test basket to lift between high temperature test area and low temperature test area, the side surface of high temperature test area and low temperature test area is provided with the exchange hole, and the exchange hole is communicated to temperature control component, is used for controlling the temperature of high temperature test area and low temperature test area. The utility model, through setting first capillary and second capillary, and cooperate with the flow divider, can accurate distribution refrigerant's flow according to high and low temperature test area's refrigeration demand, both satisfy low temperature area forced cold load, and avoid high temperature area excessive refrigeration, reduce refrigerant invalid circulation, reduce compressor energy consumption, improve whole machine temperature control precision and energy saving nature.

The utility model discloses a kind of temperature control equipment for semiconductor production with quick heating, including working chamber and temperature control equipment, and the temperature control equipment is composed of temperature sensor, resistance heating device and quick heating device.The utility model, through the synchronous emission of multiple groups of laser transmitters laser beams, after reflection mirror emission, focusing mirror focuses, form array laser, irradiate in heat conduction rod inside, can make heat conduction rod rapidly heat up, laser heating mode heating speed is fast, temperature control precision is high, and contactless heating can avoid pollution.

The utility model discloses a kind of storage device of potassium hydroxide, including storage container, KOH input port, inert gas input port, circulating pump system, observation port, sealing unit, cooling unit and control module are equipped on storage container;The control module is connected with metal ion concentration sensor, temperature sensor, flow sensor and pH monitor;The control module is used to collect the above sensor data, controls circulating pump system and cooling unit operating state, adjusts soft water supply flow, and triggers early warning when parameter is abnormal, simultaneously, operating data is uploaded to remote platform.

The utility model discloses a source bottle heating device and atomic layer deposition equipment, source bottle heating device includes support plate, flexible heating cover, fixed assembly and support leg, support plate is used for filling in the boss inside source bottle, and the top of support plate is bonded with source bottle, and the bottom surface of support plate is flush with the boss bottom surface of source bottle, and fixed assembly is used for fixedly connecting support plate and source bottle, and support plate is detachably connected with source bottle through fixed assembly, and the bottom surface of fixed assembly is not lower than the bottom surface of support plate and the bottom surface of the boss of source bottle, and the side portion of fixed assembly does not protrude to the side surface of the boss of source bottle, and flexible heating cover is sleeved in the outside of support plate, source bottle and fixed assembly fixed together, and the bottom of flexible heating cover is provided with the through hole for the support leg to pass, and the support leg is supported below support plate, and the support leg is detachably connected with support plate, and the support leg is arranged in the through hole of flexible heating cover, and the bottom surface of flexible heating cover is higher than the bottom surface of support leg. Source bottle bottom heat uniformity is good, and prolongs the life of flexible heating cover.

This invention discloses a method and system for low-temperature control of acid rain samples based on active temperature control and semiconductor refrigeration, belonging to the field of acid rain sample low-temperature control technology. The method includes the following steps: sample pretreatment and temperature control triggering, dynamic adjustment of PID control quantity and mapping of PWM signal, semiconductor refrigeration mode driving and execution, and feedback parameter updating and closed-loop control cycle. This invention pretreatment and packaging of acid rain samples into standard samples, collecting temperature data to determine whether temperature control is needed; during temperature control, according to a preset cycle, the PID control quantity is adjusted based on the temperature deviation and mapped to a PWM signal to drive the semiconductor refrigeration module to execute the corresponding mode, collecting and updating the temperature and updating the feedback variables, forming a negative feedback temperature control loop through cyclic execution. This improves the reliability of low-temperature control of acid rain samples and solves the problem of low reliability in existing technologies.

The utility model belongs to air conditioning technical field relates to a kind of direct current air conditioner, including outdoor unit and control box, the outdoor unit is equipped with first direct current brushless motor, the control box is equipped with second direct current brushless motor and third direct current brushless motor, the first direct current brushless motor is equipped with first driving device, the second direct current brushless motor is equipped with second driving device, the third direct current brushless motor is equipped with third driving device, the outdoor unit, the first direct current brushless motor, the control box, the second direct current brushless motor, the third direct current brushless motor, the first driving device, the second driving device and the third driving device are connected by electricity. Air conditioner compressor motor, outdoor fan motor and indoor fan motor are all replaced with direct current brushless motor, and corresponding driving device is matched for it, so that the use of air conditioner is more reliable, and hardware conditions are provided for intelligent management of next step air conditioner, which can be generally applicable to railway locomotive field etc.

The present application relates to the technical field of fluid conveying pipeline temperature control, and specifically discloses an intelligent temperature control method and system for electric heating hoses in extremely cold environments, aiming to solve the technical problems of existing temperature field sensing blind spots and the inability of fault diagnosis to distinguish between external working condition interference and hardware failure. First, the hose configuration and real-time operation data are obtained, a temperature field reconstruction model based on boundary condition online identification is constructed to reconstruct the full-length temperature distribution of the hose, then the thermal response feature vector composed of the heating response time, cooling response time and equivalent heat dissipation coefficient of the heating section is extracted and a historical normal value baseline is established, the precise distinction between working conditions and faults is realized based on the feature vector, and finally the adaptive collaborative temperature control is completed in combination with the reconstructed temperature distribution and the diagnosis result. The temperature field sensing blind spots can be eliminated, the fault false alarm rate is reduced, the aging of the heating element can be early warned to realize predictive maintenance, the temperature control strategy can be adapted to environmental changes, and the safe transportation of easily frozen media in extremely cold environments is effectively ensured.

This invention discloses a method for generating intelligent control strategies for central air conditioning systems applicable to multiple scenarios, relating to the field of intelligent control technology for central air conditioning systems. The method includes: setting application scenarios for the central air conditioning system and establishing an application scenario library corresponding to each application scenario; establishing a general control strategy for the central air conditioning system and setting scenario constraints for the general control strategy based on the application scenario library; obtaining scenario parameters of the space where the central air conditioning system is located, activating and adjusting the scenario conditions in the general control strategy based on the obtained scenario parameters, and obtaining an available control strategy. By constructing a library of constant temperature and non-constant temperature scenarios, the general strategy is transformed into a dynamic strategy with constraints. For constant temperature scenarios, the temperature start-up range is strictly limited; for non-constant temperature scenarios, the baseline value is corrected through self-learning based on historical operating parameters, thereby improving the temperature control accuracy in complex scenarios.

This invention provides a multi-FCU collaborative control method and system based on temperature deviation. The method includes acquiring real-time operating parameters of multiple fan coil unit (FCU) units within a controlled area and the current ambient temperature at the corresponding point of each FCU; calculating the local temperature deviation value of each FCU and determining the regional average temperature deviation value based on the overall thermal field distribution of the controlled area; dynamically clustering the multiple FCUs based on the correlation between local and regional temperature deviation values, dividing them into lead units and follower units; determining the initial adjustment increment of the lead unit and calculating the collaborative compensation ratio of each follower unit; and finally synchronously issuing control commands to achieve convergence of the temperature deviation in the controlled area by adjusting the variable frequency fan speed and water valve opening of each unit. This invention can improve the temperature control accuracy of multiple FCUs and the regional temperature uniformity, suppress pipeline pressure fluctuations, and reduce system operating energy consumption.

The application discloses a temperature control jig, which comprises a top plate, an intermediate layer and a bottom plate arranged in layers, wherein the top plate and the bottom plate are flat plate structures, a frame is arranged along the edge of the top plate, one side surface of the frame protrudes from the surface of the top plate, the top plate and the frame form a containing space for containing a display panel to be tested, a plurality of heat conduction columns are arranged on the side surface of the bottom plate away from the intermediate layer, and the intermediate layer is provided with a plurality of arrayed through holes, so that the cross section of the intermediate layer is a grid structure. The grid design of the intermediate layer of the temperature control jig greatly reduces the overall mass and heat capacity of the jig, so that heat can be more quickly conducted to the top plate through the bottom plate heat conduction columns, and the temperature rising and falling waiting time is shortened. Moreover, when the grid structure is heated and expanded, the through holes provide internal deformation space, effectively avoiding macro warping of the jig as a whole, and ensuring flat and close fitting of the panel and the jig during the test.

The application discloses a multi-partition hot water supply energy-saving regulation and control system, relates to the technical field of hot water supply regulation and control, and comprises a central controller, an energy supply module, a partition water supply module, a temperature control and regulation module, a flow monitoring module and an emergency guarantee module which are electrically connected with the central controller. Each module is in logical coordination operation under the overall planning of the central controller, that is, data acquisition-analysis processing-optimization regulation and control-emergency guarantee, is suitable for the differentiated hot water demand of multi-partition in commercial complex hotels, offices and businesses, realizes partition accurate temperature control, energy-saving water supply and emergency continuous water supply, and has the advantages of integrated multi-partition adaptation, energy-saving regulation and control and emergency guarantee.

This utility model relates to the field of heating appliances and discloses a heating module suitable for liquid heating equipment, including a heating element and a cover plate. A heating layer made of thick-film heating material is provided on one side of the heating element; a flow guide groove is provided on the other side of the heating element. The cover plate and the flow guide groove form a medium channel that allows the working medium to flow. This utility model integrates the heating plate and the water circuit board into a single structure, solving the problem of poor consistency caused by deformation due to the independent structures of the heating plate and water circuit board in the prior art. Furthermore, the sidewalls of the flow guide groove form reinforcing ribs, enhancing the structural strength of the heating element, improving its resistance to deformation, and increasing the heating controllability of the heating module. Simultaneously, the working medium flows in a designated direction to achieve gradual heating of the working medium, improving the temperature control accuracy of the heating module. This utility model also provides a liquid heating device.

The utility model discloses a cooling liquid flow direction conversion device and a liquid cooling system, and relates to the technical field of battery cooling, the device comprises a first three-way pipeline, the first three-way pipeline comprises an inflow main pipeline, a first branch pipeline and a second branch pipeline, the inflow main pipeline is connected with a liquid outlet of a water cooling machine, the first branch pipeline is connected with a first port of to-be-cooled equipment, and the second branch pipeline is connected with a second port of the to-be-cooled equipment; the second branch pipeline is connected with a second port of the to-be-cooled equipment; the second three-way pipeline comprises a main outflow pipeline, a third branch pipeline and a fourth branch pipeline, the main outflow pipeline is connected with a liquid return opening of the water cooling machine, the third branch pipeline is connected with a second port of the equipment to be cooled, and the fourth branch pipeline is connected with a first port of the equipment to be cooled; and the reversing structure is arranged on the first three-way pipeline and the second three-way pipeline. Through the pipelines and the reversing structures arranged on the pipelines, switching of the flowing direction of the cooling liquid is achieved, the regional temperature difference in the to-be-cooled equipment is reduced, and the cooling effect is improved.

The utility model discloses a kind of temperature and humidity test box temperature control system, including first refrigeration cycle unit, first temperature control cycle unit, second refrigeration cycle unit, second temperature control cycle unit and expansion cycle unit, second refrigeration cycle unit and first refrigeration cycle unit are connected in series, first temperature control cycle unit is connected and controls first refrigeration cycle unit, second temperature control cycle unit is connected and controls second refrigeration cycle unit, expansion cycle unit is connected on first, second refrigeration cycle unit.The utility model is suitable for wide temperature range, without heater-80~60 ℃ under condition;Temperature control precision is high, temperature fluctuation degree is ≤±0.02 ℃;Temperature rising speed is fast, compared with traditional mode and improve 10%~50%;Energy efficiency ratio is high, power consumption is small, maximum can save 50% power consumption.

This invention discloses a steady-state junction-shell thermal resistance measurement method based on isostatic shell temperature control, comprising the following steps: mounting the module under test (TBT) on a heat sink; setting a temperature sensor to detect the surface temperature of the TBT's shell to determine whether the shell temperature has reached a set value and remained stable; driving the TBT to generate heat and adjusting the heat sink to dissipate heat, so that the TBT reaches a thermal steady state; recording multiple data points of the TBT's junction temperature and heat generation power under multiple thermal steady-state conditions; and determining the slope of the junction temperature-heat generation power curve obtained by linear fitting as the TBT's junction-shell thermal resistance. This invention innovatively uses a thermoelectric cooler as the heat dissipation system during the testing process, fully utilizing its characteristics of fast response, good temperature uniformity, and high control precision to achieve high uniformity of the module shell surface temperature and improve the stability of the cooling system, thereby significantly enhancing the repeatability and robustness of the junction-shell thermal resistance test.

This application provides a multi-level heater control method, system, device, and medium. The method includes: providing a heater and a water circulation device, wherein the heater serves as the heat source for the water circulation device, and the water circulation device includes a first branch and a second branch. The first branch is used for heat exchange with the passenger compartment air conditioning system, and the second branch is used for heat exchange with the battery area. When a battery heating request and a passenger compartment warm air request are received within a preset interval, the inlet water temperature of the first branch is controlled by adjusting the heater level, and the heating status is determined based on the real-time temperature in the passenger compartment. When the heating status reaches a steady state, the actual power consumption of the heater is determined. The opening degree of the second branch is determined based on the actual power consumption, thereby adjusting the heater level to control the inlet water temperature of the second branch and completing battery heating. This application can effectively improve temperature control accuracy.

The utility model relates to magnesium alloy semi -solid injection moulding technical field discloses a magnesium alloy particle semi -solid temperature range measuring device, including support, hot nozzle, apron, temperature measurement unit, stirring unit, heating unit and temperature control unit. Through the observation of the macrostate of the magnesium alloy that falls or drops, without using other precision analytical instrument, can conveniently judge whether magnesium alloy is in semi -solid, and further determine the temperature range of magnesium alloy semi -solid, solve the problem that the technical personnel cannot actually measure the semi -solid temperature range of magnesium alloy particle under the condition that cannot use precision instrument in actual production.

The utility model relates to hot runner practical device field, and disclose a kind of three point glue injection needle valve hot runner practical device based on single cylinder drive, including panel, runner plate, A plate and external connection mechanism, glue injection mechanism, through the linkage structure of single cylinder drive combination shunt plate component and valve needle pressure block, realize the opening and closing of three glue injection point valve needles synchronous control of single power source, electromagnetic valve in external connection mechanism receives electric signal and drives piston, valve needle is driven to move up and down by valve needle pressure block, cooperate heat insulating plate with positioning ring to ensure movement accuracy, shunt plate component realizes the even shunt of molten plastic and temperature accurate control by symmetrical heating wire, anti-rotation shaft and center pin, modular hollow structure design is convenient to install maintenance, external connection mechanism and nameplate promote debugging efficiency, compared with traditional multi-cylinder drive system, the utility model simplifies mechanical structure, reduces fault point, high synchronism, can avoid uneven glue injection, temperature control instability and other problems, and improves the quality of injection molding product forming.

This invention discloses a plastic bottle blow molding system and method, relating to the field of plastic packaging molding technology. The system includes a zoned precision preheating mechanism, a multi-stage air-blowing stretch blow molding mechanism, an internal and external composite cooling mechanism, and a PLC control mechanism, arranged sequentially along the preform processing direction. The method includes preform conveying, zoned precision preheating, multi-stage air-blowing stretch blow molding, internal and external composite cooling, and demolding. This invention improves the preform temperature control accuracy to within ±1℃ and reduces wall thickness deviation to within ±0.05mm through independent cooling at the bottle mouth, 5-segment axial zone heating, and PID closed-loop temperature control. The precise synchronous coordination of three independent air paths with the stretch rod movement solves molding defects such as wrinkles and pitting. Synchronous cooling through a double-spiral reverse cooling channel outside the mold and a through-type cooling channel inside the stretch rod shortens the molding cycle from 3-4 seconds to 2-2.5 seconds.

This invention provides a glass annealing apparatus belonging to the field of glass manufacturing technology. It includes an insulating outer wall forming an outer enclosure structure; a furnace wall forming an inner annealing chamber; a sandwiched partition disposed between the insulating outer wall and the furnace wall; wherein the sandwiched partition is fitted outside the furnace wall to form a molten salt pool, and a heating element is provided within the molten salt pool; the insulating outer wall is fitted outside the sandwiched partition to form a heat insulation chamber; multiple sets of heat-conducting columns are evenly distributed within the molten salt pool, with one end extending into the annealing chamber and the other end extending into the heat insulation chamber; a dual-liquid storage furnace is disposed on one side of the insulating outer wall, filled with heat insulation liquid and cooling liquid, used to selectively introduce heat insulation liquid or cooling liquid into the heat insulation chamber to achieve heat preservation or rapid heat dissipation; lifting components are installed on both sides of the insulating outer wall; a support frame is used to support the glass and move in and out of the annealing chamber with the furnace lid; this apparatus can achieve uniform temperature control and segmented operation switching in the annealing chamber, improving the temperature control accuracy of the apparatus.

This invention discloses a phase-change uniform temperature heat dissipation system and method for high-power-density PXIe controllers, belonging to the field of electronic device heat dissipation technology. This invention achieves efficient heat absorption by closely attaching a copper heat-conducting component to the power device. A composite heat-conducting pipe embedded in the top of a heat-conducting plate facilitates rapid heat diffusion and uniform temperature distribution on the plate. Furthermore, a heat dissipation fin assembly welded to the top of the heat-conducting plate, in conjunction with an adjustable-speed fan located at the air duct inlet, forces heat dissipation through convection. Simultaneously, a health management module collects the temperature of the power device in real time and intelligently adjusts the fan speed based on a predictive model and a preset objective function. This invention, through the organic combination of "phase-change uniform temperature distribution" and "intelligent control," achieves efficient heat conduction, uniform distribution, and precise heat dissipation within a limited space, improving the overall performance and intelligence level of the heat dissipation system and ensuring the long-term stable and reliable operation of the high-power-density PXIe controller under complex operating conditions.

The utility model provides a kind of self-preheating gas heating preheating furnace, including furnace body, transmission component, several circulation components and several heating devices;The furnace body has furnace cavity inside, the transmission component is installed in the furnace cavity, workpiece is transmitted by the transmission component and passes through the furnace cavity, the furnace cavity is divided into several sections along workpiece transmission direction, each the section is combined with the circulation component and several heating devices;The circulation component and several heating devices are arranged at the top of the transmission component, and several heating devices are arranged at the bottom of the transmission component;The heating device is self-preheating gas heating device.The self-preheating gas heating preheating furnace is divided into sections, and the furnace gas series flow is reduced, the temperature control precision and stability are better;The self-preheating gas heating preheating furnace uses self-preheating heating device, is energy-efficient, the energy utilization rate is higher, and energy consumption is lower.