23results about How to "Uniform temperature field" patented technology

This invention provides a coupled method for thermal cycling control and online cooling to maintain supersaturated solid solution. By integrating multiple online cooling devices and a closed-loop temperature control strategy, it achieves precise management of interlayer temperature, effectively suppressing premature precipitation of Y and O elements during the additive manufacturing process, maintaining a high degree of supersaturation in the matrix, and providing a favorable condition for the formation of ultrafine nano-precipitates in subsequent heat treatment. Simultaneously, the linkage between interlayer temperature window control and process parameter adjustment ensures that each layer experiences a similar thermal history, significantly improving the microstructure consistency along the height direction of the component and eliminating performance gradient differences present in traditional processes. The introduction of a periodic thermal cycling management strategy further releases thermal stress, homogenizes the temperature field, and prevents precipitation coarsening through rapid cooling, thereby improving the overall mechanical properties of the material. This invention provides an efficient, controllable, and reliable process solution for the additive manufacturing of high-performance ODS-RAFM steel.

The utility model relates to the technical field of detection devices, and discloses an underground coal mine flame-retardant cable copper conductor detection device which comprises a base, an air cylinder is installed below the base, a base is installed at the bottom of the interior of the base, a sample tube base is installed above the base, a sample tube is placed on the sample tube base, and the sample tube is connected with the air cylinder. A connecting port is formed in the upper portion of the interior of the base, the connecting port upwards extends out of the base to be connected with a container type pipeline module, a pressure sensor is installed on the surface of the right face of the container type pipeline module, and an air inlet device is installed on the container type pipeline module. According to the underground coal mine flame-retardant cable copper conductor detection device, through the arrangement of the integrated container type pipeline module and the air cylinder, an instrument automatically installs a sample tube to a connecting port, operation is more convenient, meanwhile, test errors caused by manual installation of the sample tube are avoided, through an integrated container type pipeline, no pipeline connector exists between valves, and the detection efficiency is improved. Gas leakage points are reduced and a temperature field is uniform.

The utility model discloses a tinned copper clad steel wire heat treatment device, including heating furnace, the right side fixed mounting of heating furnace has circulating fan, the air outlet pipe of circulating fan extends to the inside communication of heating furnace's downward exhaust pipe, the top communication of exhaust pipe has the air outlet head, the back of heating furnace inner chamber is installed spiral heating tube, the front of spiral heating tube is installed and is connected to the heat conduction fin, and the left end of spiral heating tube extends to the outside fixed mounting of heating furnace and is installed heater. The utility model discloses through circulating fan cooperation spiral heating tube and heat conduction fin, forms hot -blast circulation system, ensures the evenness of furnace temperature field, avoids the partial overheating of wire rod, and rotating disc, limit post and vertical rod constitute the rotating type wire rod fixed establishment, can drive wire rod uniform speed rotation, guarantees heat treatment consistency, and temperature detector real -time feedback temperature data, combines the adjustment of air vent and sealing door, realizes the accurate control of heat treatment process.

The invention discloses a self-adaptive variable-temperature energy-saving control method and device for a heating, ventilation and air conditioning system, and relates to the field of self-adaptive control of the heating, ventilation and air conditioning system. The method comprises the following steps that S1, three-dimensional data are collected; s2, intelligent decision making; s3, executing control; s4, grading an energy-saving strategy; and S5, performing a fault self-healing process. The millimeter wave radar and infrared sensing collaborative sensing technology is adopted, a space energy distribution model is accurately constructed, meanwhile, an intelligent algorithm comprehensively analyzes human physiological signals and environment parameters, the user activity state is recognized in real time, a temperature regulation and control scheme is dynamically optimized, the thermal comfort is greatly improved, and the energy utilization rate is increased. An advanced closed-loop control system is combined with a high-speed response element, it is ensured that a temperature field is stable and uniform, in addition, the service life of equipment is remarkably prolonged through the online fault self-diagnosis function, the intelligent dormancy technology is combined with an intelligent energy storage strategy, and standby energy consumption is greatly reduced while the optimal comfort level is maintained.

The utility model discloses a graphite water separation dehydration device which comprises a dehydration tank body, an upper cover, a transmission bin and a water storage bin, a moisture exhaust fan is arranged in the upper cover, a stirring device is arranged at the bottom of the dehydration tank body, a transmission mechanism of the stirring device is arranged in the transmission bin, and a water storage device and a heating pumping device are arranged in the water storage bin. A stirring device is arranged in the dewatering tank body, a drying tank is arranged above the stirring device, a liquid supply channel is arranged in the side wall of the drying tank, the drying tank is communicated with the heating pumping device through a guide pipe, a lifting device is arranged on one side of the dewatering tank body, and the lifting device is connected with the drying tank. And meanwhile, the drying position can be flexibly controlled, the drying tank is adjusted to be in full contact with the graphite, and the drying effect is ensured.

This invention provides a stirring head for friction stir welding. The stirring head includes a holding handle, a stirring pin, and a shoulder. The shoulder is located at one end of the holding handle and is frustoconical in shape. The lower surface of the shoulder connects to the holding handle, and the center of the upper surface of the shoulder connects to the root of the stirring pin. The stirring pin is conical, and its side is provided with a double right-hand thread structure. The double right-hand thread structure includes a first right-hand thread and a second right-hand thread. The first right-hand thread includes a single-start thread, and the second right-hand thread includes a three-start thread. The stirring head provided by this invention can solve the weld defects caused by insufficient heat input and inadequate material flow in the initial stage of friction welding, and improve the weld formation quality and mechanical properties in the initial stage of welding.

The invention discloses an environment direct disturbance suppression system for supporting shock insulation stability performance. The environment direct disturbance suppression system comprises a greenhouse, a control module, an upper high-temperature cold source module, a lower high-temperature cold source module, an air conditioning equipment module and an environment monitoring module, the greenhouse is divided into an upper greenhouse cabin and a lower greenhouse cabin; the upper greenhouse cabin covers a seismic isolation platform surface of the seismic isolation platform, and the lower greenhouse cabin covers an underground part of the seismic isolation platform; the environment monitoring module is controlled by the control module to collect environment parameters in the upper greenhouse cabin and the lower greenhouse cabin in real time, and transmits the collected temperature of the upper greenhouse cabin and the lower greenhouse cabin to the control module; the control module controls the air conditioning equipment module and the upper high-temperature cold source module to regulate and control the internal temperature of the upper greenhouse cabin in a time-sharing manner based on the temperature of the upper greenhouse cabin; and meanwhile, the control module controls the lower high-temperature cold source module to regulate and control the internal temperature of the lower greenhouse cabin based on the temperature of the lower greenhouse cabin. And finally, the temperature field in the greenhouse is uniformly distributed, so that the influence of temperature fluctuation and airflow disturbance on the seismic isolation platform is inhibited.

This invention relates to the field of fuel cell technology and discloses a fuel cell heat dissipation system and control method for active balancing heat dissipation in unmanned aerial vehicles (UAVs). The fuel cell heat dissipation system includes a UAV heat dissipation assembly and an active balancing control subsystem. The UAV heat dissipation assembly includes a liquid cooling circuit and rotors disposed at the tips of multiple heat dissipation arms. The liquid cooling circuit includes coolant channels disposed inside the multiple heat dissipation arms. The coolant channels include in-arm liquid inflow pipes and in-arm liquid return pipes. Multiple in-arm liquid inflow pipes are arranged close to the inner side of the heat dissipation arms, and the multiple inflow pipes converge at the tips of the heat dissipation arms and connect to the in-arm liquid return pipes. The inflow pipes have an S-shaped variable diameter pipe structure, and their arrangement density gradually decreases from the root to the tip of the heat dissipation arm. The active balancing control subsystem includes a sensor group, an actuator group, and a controller. This invention can improve the reliability and flight safety of the UAV thermal management system.

The utility model discloses a refrigerating system applied to a constant temperature and humidity test box, which comprises a box body, the inner surface of the box body is fixedly connected with an object placing plate, an air inlet pipe penetrates through the side surface of the box body, the inner wall of the air inlet pipe is fixedly connected with a bracket I, and the inner surface of the bracket I is fixedly connected with a motor I; the output end of the first motor is fixedly connected with driving fan blades, one end of the air inlet pipe communicates with a housing, a plurality of air outlets are formed in the housing, the inner surface of the housing is rotationally connected with a baffle, an opening is formed in the baffle, the baffle is movably connected with the air outlets, the front surface of the baffle is fixedly connected with a rotating rod, and the outer wall of the rotating rod is fixedly connected with driven fan blades. Through the components, the blowing-out concentrated air flow can be scattered, so that the air flow is not concentrated in a certain direction any more and is more uniformly diffused into the whole test box, and a stable and uniform temperature field is favorably formed.

The utility model relates to a kind of directional solidification devices for metal smelting, including smelting furnace body and be located in the crucible of the furnace body, the crucible outside is equipped with the induction coil for inductive heating, the crucible is split type's bottomless water-cooled copper crucible, its inner side wall is equipped with multistage full-wrapping water circulation cooling structure;The top of the crucible is equipped with the rotary feeding table that can continuously feed into the crucible, bottom is equipped with a condensation casting device that can move up and down, the utility model is through the linkage design of top rotary feeding table and bottom condensation casting device, realizes the synchronous of "melting-feeding-solidification-pulling ingot", overcome the defect that the prior art must interrupt pulling ingot to feed, eliminates feeding downtime, so that single furnace time pulling ingot efficiency improves 30%-50%, and can support the continuous preparation of more than one meter long size bar stock, reduce subsequent splicing processing procedure, significantly shorten production cycle.

The utility model relates to the technical field of tunnel kiln air supply, and provides a tunnel kiln air supply device which comprises a tunnel kiln, the upper end of the tunnel kiln is fixedly provided with an air supply device, the air supply device comprises an air supply pipe, the other end of the air supply pipe is fixedly provided with a connecting pipe, and the outer side of the connecting pipe is fixedly provided with a plurality of groups of first branch pipes. The lower end of the connecting pipe is fixedly provided with a plurality of sets of second branch pipes, the other ends of the first branch pipes communicate with the lower end of the tunnel kiln, the other ends of the second branch pipes communicate with the upper end of the tunnel kiln, and a plurality of sets of buffer cavity assemblies are fixedly installed in the connecting pipe. Air entering the air supply pipe is dispersed into the multiple sets of first branch pipes and the multiple sets of second branch pipes through the connecting pipe, and air flowing into the connecting pipe is treated through the buffer cavity assembly, so that the air flows into the multiple sets of first branch pipes and the multiple sets of second branch pipes more evenly.

The heating device comprises a base, a driving mechanism and a first heating mechanism, the base comprises a fixed part and a movable part, and the fixed part is used for being connected with a liquid storage device; the first heating mechanism is arranged between the fixed part and the movable part, and the driving mechanism can drive the first heating mechanism to be switched between a first position and a second position; the driving mechanism comprises a shape memory alloy spring and a bias part, the shape memory alloy spring and the bias part are both arranged between the fixed part and the movable part, the shape memory alloy spring is configured to serve as a second heating mechanism, and the bias part is configured to bias the shape memory alloy spring from the first state to the second state. According to the heating device disclosed by the invention, through the synergistic effect of the shape memory alloy spring and the bias part, the expansion and contraction of the heating device in the working state are realized, and the adaptability requirement on the working space is reduced. The shape memory alloy spring integrates the heating function and the driving function, and efficient, compact and intelligent self-adaptive heating can be achieved.

This invention belongs to the field of chemical reaction technology, specifically relating to a layered temperature-controlled sulfonation reaction device, including a vessel body, a layered heat exchange jacket mechanism disposed outside the vessel body, and a layered flow guiding and stirring mechanism disposed inside the vessel body. The vessel body has two annular partition layers that axially divide the interior into a low-temperature feeding reaction chamber, a medium-temperature sulfonation reaction chamber, and a low-temperature curing and cooling chamber, connected sequentially from top to bottom. The layered heat exchange jacket mechanism is coaxially wrapped around the outer wall of the vessel body and includes an upper jacket, a middle jacket, and a lower jacket that are thermally insulated from each other, corresponding to the three chambers inside the vessel body. Each of the three jackets is independently connected to a set of refrigerant circulation pipes, matching the different temperature requirements of each stage of the reaction. This avoids the problem of "local over-reaction / under-reaction" in traditional single-temperature zone sulfonation devices. Combined with atomized feeding and staged stirring, the material and sulfonating agent have more sufficient contact, the reaction process has no dead zones, and the consistency of the sulfonation degree of the finished product is greatly improved.

The utility model relates to a kind of temperature control type AD converter testing device, it includes: test fixture body, for installing AD converter to be detected;Cooling assembly, including the cooling plate being set in test fixture body bottom and the cooling module being set with cooling plate adhesion, several cooling channels are connected in parallel inside cooling module, several cooling channels are respectively communicated with inlet manifold and liquid-collecting manifold, and the cross section of each cooling channel gradually increases along the flow direction of cooling liquid;The side of cooling plate facing AD converter to be detected is heat conduction contact surface, and heat coupling is formed with the heat dissipation side of AD converter by heat conduction interface material;Temperature control structure, with inlet manifold and liquid-collecting manifold are communicated to form cooling liquid circulation passageway, for adjusting the temperature and / or flow of cooling liquid to maintain set temperature;Test module, with AD converter to be detected electric connection.

The application relates to a method and a special smoking room for low-temperature smoked bacon, and relates to the technical field of meat product deep processing and food machinery engineering. The special part is that a special low-temperature smoking room is used for temperature section smoking: first stage smoking: the smoke temperature is adjusted through a circulating water cooling device, the smoke gas temperature contacted by the bottom layer of bacon blanks in the bacon smoking room is controlled to be 20-25 DEG C, the smoke gas temperature contacted by the top layer of bacon blanks is controlled to be 15-20 DEG C, and smoking is carried out for 2-4 months; second stage smoking: the smoke gas temperature contacted by the bottom layer of bacon blanks in the bacon smoking room is controlled to be 30-35 DEG C, and the smoke gas temperature contacted by the top layer of bacon blanks is controlled to be 25-30 DEG C. Beneficial effects: the oil and fire are separated, and the problem of carcinogens such as benzo[a]pyrene generated by high-temperature cracking of oil is completely eliminated. Meanwhile, the fire risk is greatly reduced, the disadvantages of 'upper maturation and lower growth' or local overheating in the traditional process are eliminated, the controllability of process parameters is high, and a reliable technical path is provided for the standardization and large-scale production of bacon.

This invention relates to the field of 3D printing technology, and in particular to a 3D printer with a fully enclosed infrared constant temperature cavity, including a printer body, a gantry set inside the printer body, and an extruder movably mounted on the gantry. The gantry has a built-in transmission system for driving the extruder to move laterally and longitudinally inside the printer body. A forming platform is provided at the bottom of the gantry, which is driven by the transmission system to move up and down. This invention realizes the reciprocating swing motion of the swing plate and swing ring through the swing heating component, so that the annular heating tube and the long strip heating tube can dynamically radiate the side area of ​​the forming platform in layers and at multiple angles. The fixed-point temperature compensation component is always accurately aligned with the extruded material to ensure the continuity and accuracy of temperature compensation, which significantly improves the printing quality and success rate. The turbulence temperature control component makes the infrared heat radiation continuously dispersed by the rotating turbulence plate and evenly cover all areas of the bottom of the forming platform.

The invention relates to a preparation method of high-purity quartz sand doped with aluminum on the surface, which comprises the following steps: weighing an aluminum-containing medicament, dissolving with pure water, and stirring to form an aluminum salt solution; the method comprises the following steps: weighing a certain amount of high-purity quartz sand, adding an aluminum salt solution to form a turbid solution according to the aluminum content of the quartz sand and the number of aluminum elements needing to be doped, soaking for 1-30 minutes, removing most moisture through low-temperature drying, removing residual moisture through high-temperature drying, and finally uniformly mixing by using a mixer to obtain the high-purity quartz sand with the surface doped with the aluminum salt; the prepared high-purity quartz sand with the surface doped with the aluminum salt is placed in a high-temperature environment to be calcined, and the high-purity quartz sand with the surface doped with aluminum is obtained; and 3, washing the high-purity quartz sand doped with aluminum on the surface obtained in the step 3 with pure water, and drying and cooling after washing. The high-purity quartz sand with the aluminum content ranging from 10 ug / g to 16 ug / g is prepared by conducting surface aluminum doping on the quartz sand.

The invention provides a coal sample temperature change resistivity testing device and a using method thereof, and relates to the technical field of petrophysics and experimental geophysics. The device comprises an insulation and heat preservation device used for providing an insulation environment and a heat preservation environment; the shaft type sample bin is arranged in the insulation heat preservation device and is used for containing a test coal sample column; the transmission mechanism is used for driving the shaft type sample bin to rotate; the resistivity tester is electrically coupled with the test coal sample column to measure the resistivity of the test coal sample column in real time; the temperature rising device is arranged in the insulation and heat preservation device and is thermally coupled with the test coal sample column to realize heating; the thermodetector is arranged in the insulation heat preservation device and is thermally coupled with the test coal sample column to measure the temperature in real time; and the chassis is used for fixing and supporting the resistivity tester, the heating device and the thermodetector. According to the method, the resistivity of the prepared standard coal sample can be accurately and continuously measured in a controllable temperature field, and key data is provided for researching the rule that the coal electrical property changes along with the temperature.

The invention belongs to the technical field of Roman cloth, and particularly relates to superfine soft Roman cloth and a preparation process thereof.The superfine soft Roman cloth comprises a fabric body, the fabric body is prepared from, by weight, 52% of 90S high-count cotton, 42% of 40D / 24F chinlon and 6% of 20D spandex through a Roman double-faced cloth weave structure and a high-count and high-density weaving process, and the superfine soft Roman cloth has the advantages that the superfine soft Roman cloth is high in softness, good in softness and high in softness, good in softness and high in softness, good in softness and high in softness, good in softness and good in softness. The setting machine is arranged, an electric push rod drives a lifting frame to vertically lift, the two ends of the lifting frame are in rolling fit with guide rails through rollers, the stability and smoothness in the lifting process of a pressing roller are guaranteed, the blocking phenomenon is avoided, clamping mechanisms are arranged at the two ends of a setting mechanism, and synchronous clamping and tension control can be conducted on the edges of the two sides of a fabric body; the uniform stress of the fabric in the full width direction is ensured.

This invention relates to a dry forming method for ultra-thick, radiation-resistant, and nuclear-proof laminated glass for viewing windows. The method includes the following steps: cleaning and drying a glass plate, then applying a protective electrostatic film to the non-adhesive surface; cutting a polymer resin film to a size matching the glass plate and conditioning it in a clean space; laying the polymer resin film on the surface of the glass plate to be bonded, and then using a laminating machine to stack the glass plate to be bonded on top of the glass plate with the adhesive film laid; vacuum-exhausting the laminated glass plate until there are no bubbles or impurities, and the transparency is 60-80%; subjecting the glass plate to high-temperature and high-pressure composite curing, followed by post-treatment, to complete the dry forming of ultra-thick, radiation-resistant, and nuclear-proof laminated glass for viewing windows. Compared with existing technologies, this invention has advantages such as enabling industrial-scale mass production without requiring large-scale new investment, high heating efficiency, uniform temperature field in the laminated glass, and low internal stress.

The application provides a mold design and method for integrally manufacturing a thermoplastic hat stringer wallboard by using an automatic fiber placement process. The mold comprises a base, a hat stringer core mold and a self-heating system, the base is provided with a stringer profile groove and a thickness limiting positioning groove, a thickness limiting positioning block is arranged in the thickness limiting positioning groove, and the self-heating system comprises a control unit, a temperature measuring sensor and a plurality of heating rods. The method comprises hat stringer preparation, mold pretreatment, automatic fiber placement forming and cooling demolding. The mold and method for integrally manufacturing a thermoplastic hat stringer wallboard by using an automatic fiber placement process can effectively coordinate the fiber placement process parameters, realize online in-situ manufacturing, the mold can provide effective profile support and simple demolding for the formed structure, and the integrative, high-precision and high-efficiency manufacturing of the thermoplastic hat stringer wallboard is realized, the mechanical properties and the qualified rate of the hat stringer wallboard are improved, the production cost is reduced, and the application requirements of aviation are met.

The application discloses a diffusion connection device for a rare earth barium copper oxygen coating conductor and relates to the technical field of superconducting electrical engineering. The device comprises a bottom plate, electrodes, a base, a heating assembly, a cover plate, a pressing block and a thermocouple. The base is installed on the bottom plate, and the base is provided with a groove for installing the heating assembly. The heating assembly comprises two heating units symmetrically arranged in an up-down direction. The heating unit comprises a heat insulation bottom plate, a heating sheet and a heat insulation cover plate which are sequentially stacked. The heat insulation cover plate is embedded with a heat spreading sheet. The electrodes are connected with the two heating sheets for heating the heating sheets. The two heating units are used for placing the rare earth barium copper oxygen coating conductor. The thermocouple is in contact with the two heat spreading sheets. The cover plate is provided with a protrusion at the bottom end, which is matched with the groove. The lower surface of the protrusion is provided with a heating groove. The cover plate is provided with a through hole matched with the pressing block. The application can realize a rapid and accurate temperature control process, the temperature field of the heating area is uniform, the negative influence of the high-temperature process on the superconducting performance of the coating conductor is relieved, and the joint resistance is reduced.

The invention relates to the technical field of thin-film heat flux sensors, and discloses a miniature transient thin-film heat flux sensor, which is characterized in that an upper high-thermal-conductivity covering layer and a lower high-thermal-conductivity covering layer are respectively arranged on the upper surface and the lower surface of the miniature transient thin-film heat flux sensor; when the surface temperature of a to-be-measured wall surface and the heat flux density of a non-uniform temperature field on the surface of the to-be-measured wall surface are measured, heat on the upper and lower sides of the sensor is promoted to be quickly and uniformly diffused by utilizing the high thermal conductivity of the upper and lower high-thermal-conductivity covering layers, so that the temperature fields on the two sides of the sensor are uniform; the interference of local hot spots or local cold spots possibly existing in a non-uniform temperature field on measurement is avoided, the measurement accuracy and reliability of the sensor in a complex thermal environment are improved, and the overall measurement error is reduced.