1026 results about "Electromagnetic heating" patented technology

The invention relates to the technical field of data processing, in particular to an induction cooker data acquisition and processing system which comprises a power jump identification module, a response section correction module, a trend sampling analysis module, a temperature control abnormity judgment module and a working condition balance data calibration module. According to the method, the rate change value between the power sampling points in the operation period is calculated, the sections with obvious abrupt change characteristics are screened, and the power lag response is corrected in combination with the voltage change slope, so that the time offset between the control response and the electric signal change is effectively corrected; the temperature fluctuation trend and the temperature control deviation direction are analyzed on the basis of the correction sequence, a temperature control abnormal state label set is formed by matching current waveform symmetry characteristics, a basis is provided for output power adjustment according to the temperature rise rate, the adaptation capacity of data analysis to actual working conditions and the execution precision of a control strategy are improved, and the accuracy of data analysis is improved. And the stable operation capability of the electromagnetic heating equipment under the complex thermal load change is enhanced.

The invention discloses a transmission shaft straightening device, and relates to the technical field of straightening machines, the transmission shaft straightening device comprises a rack and a workbench connected to the rack, the rack is further provided with a pressing cylinder used for straightening a transmission shaft, and the lower portion of the pressing cylinder is connected with a pressing head; a bearing table used for bearing straightening pressure of the transmission shaft, a heating assembly and two positioning assemblies used for clamping the end of the transmission shaft are installed on the workbench, the heating assembly is arranged, and the transmission shaft is preheated before being straightened, so that the metal structure of the heated part of the transmission shaft is softened. In the straightening process, the connecting state of the two electromagnetic heating pipes is automatically closed according to the downward pressing degree of the transmission shaft, the position of a pressing head is avoided, due to the fact that the two electromagnetic heating pipes in the heating assembly heat the outer wall of the transmission shaft in advance, when the transmission shaft is pressed and straightened, the metal structure of the transmission shaft is prone to plastic deformation, and the straightening effect is better. Therefore, the straightening effect is obviously improved.

The application discloses a pressure pipeline repairing device, relates to the technical field of pressure pipeline maintenance and repairing, and comprises a pipe body, a plugging assembly, a limiting assembly and a repairing assembly. The plugging assembly comprises a plugging side cover, a plugging top cover and a pressure relief pipe. The plugging side cover is attached to the upper end of the pipe body and located outside the damaged part of the pipe body. The plugging top cover is connected to the upper end of the plugging side cover through bolts. The pressure relief pipe is arranged at the center of the upper end of the plugging top cover and communicates with the plugging side cover. The limiting assembly comprises a limiting belt, a connecting seat and a connecting stud. The limiting belt is wrapped outside the lower end of the pipe body. The repairing assembly adopts an electromagnetic plate to generate an alternating magnetic field, performs non-contact electromagnetic heating on the plugging plate and a low-melting welding fusion plate, utilizes the melting characteristics of the welding fusion plate, and effectively bonds the plugging plate and the damaged part of the pipeline after cooling, so that the on-line welding repairing of the leakage point is realized from the outside of the pipeline. The operation process is safe, efficient and has high repairing strength.

The invention relates to the technical field of kitchen appliance control, and discloses a chef machine and a control method thereof. According to the method, a stirring mode instruction is received through an operation interface, and a stirring mode comprises a preset non-constant-speed double-linkage mode and corresponds to a plurality of transmission gear ratio parameters; according to the transmission gear ratio parameter, determining a target rotating speed ratio of a driving motor for driving a stirring head to a stirring barrel base; if it is detected that the stirring head and the upper transmission shaft are in a connected state and the stirring barrel is fixed, calculating the output rotating speed and torque parameters of the driving motor based on the target rotating speed ratio; generating a driving instruction according to the output rotating speed and the torque parameter and sending to a driving motor; in the running process of the driving motor, motor current and rotating speed sensor data are collected in real time, if it is detected that load torque exceeds a preset safety threshold value, motor output power is reduced or running is stopped, and overload alarm is triggered; if it is detected that the rotating buckle of the stirring barrel base and the machine base is loosened, the driving motor and the electromagnetic heating are stopped.

The invention discloses a copper wire annealing temperature gradient control device which comprises a box body, and an inert gas supply source, an induction heating power supply, a control unit and a cooling water supply source are arranged outside the box body. The front end of the box body is provided with a door body, a left hinge and a right lock catch. A connecting seat is arranged at the bottom in the box body, a mounting plate is arranged at the middle upper part of the box body, and a vertical guide rail column is detachably mounted between the connecting seat and the mounting plate; clamping structures are arranged at the upper and lower ends of the base; and copper wires are detachably mounted on the clamping structures. And two ends of the electromagnetic heating coil penetrate out of the box body and are connected with an induction heating power supply. And the top of the base is connected with the take-up and pay-off equipment through a stay wire. Two temperature measuring assemblies are arranged on the box wall and located above and below the electromagnetic heating coil respectively. The lower end of the side wall of the box body is connected with an inert gas supply source, and the upper end is provided with an exhaust pipe with a valve and an online gas detector. The side wall of the box body is connected with an inclined bent pipe and an emptying pipe with a valve, and a water inlet pipe penetrates through the side wall of the box body and is connected with the box body.

The invention relates to the technical field of bearing quenching, and particularly discloses a quenching device for bearing production, which comprises a shell and a driving assembly arranged in the shell, a three-jaw chuck is arranged at the output end of the driving assembly to drive the three-jaw chuck to rotate and lift, and an electromagnetic heating module and a cooling module are also arranged in the shell; the electromagnetic heating module comprises at least three electromagnetic heating units, each electromagnetic heating unit comprises a sliding seat which is in elastic sliding fit with the shell in the radial direction of the three-jaw chuck, a lifting seat is arranged on the sliding seat, an electromagnetic coil is arranged on the lifting seat, and the electromagnetic coil comprises a vertical section and an annular section. The bearing ring heating device has the beneficial effects that the distances between the annular sections and the inner wall of the bearing ring are the same, and meanwhile, the bearing ring is in a rotating state during working, so that the temperature rising speeds of different positions of the bearing ring are consistent, the bearing ring can be uniformly heated to a set temperature, the heating uniformity of the whole bearing ring is ensured, and the service life of the bearing ring is prolonged. And the product quenching quality is improved.

The invention relates to a multi-airflow alternating temperature calcining device for ultra-long nitride single crystal nanofibers. The multi-airflow alternating temperature calcining device comprises a reaction furnace; the mechanical vacuum pressure gauge and the exhaust port are arranged at the top of the reaction furnace; the reaction furnace chamber is arranged in the reaction furnace; the multi-reaction-zone graphite furnace body is arranged in the reaction furnace chamber and comprises a first low-temperature zone, a second high-temperature zone and a third low-temperature zone which are sequentially arranged from bottom to top and are not in contact with one another; the electromagnetic heating controller is arranged on the periphery of the multi-reaction-area graphite furnace body; the graphite boat is movably arranged in the multi-reaction-area graphite furnace body; the movable alumina crucible is arranged in the graphite boat; the graphite columns are arranged at the top and the bottom of the multi-reaction-zone graphite furnace body; the hydraulic cylinder is connected with the graphite column; and a control assembly. Compared with the prior art, the method has the advantages that the nitridation reaction process can be accurately controlled, the fiber quality and the crystal integrity can be improved, and independent and accurate temperature control can be realized.

The application discloses an electromagnetic heating circuit, a control method and device of an electrical appliance, and the electrical appliance. The circuit comprises at least two resonance modules, at least two switch modules, an inverter module, a gating module, an oscillation driving module, a voltage signal extraction module, and a control module. The switch module comprises a fixed end, a movable end, a first position end, and a second position end. The fixed end of the at least two switch modules is connected to the at least two resonance modules one by one. The inverter module is connected to the first position end. The gating module is connected to the second position end. The oscillation driving module is connected to the gating module. The voltage signal extraction module is connected to the oscillation driving module. The control module is connected to the inverter module, the voltage signal extraction module, the gating module, and the at least two switch modules. The technical scheme provided by the embodiment of the application can detect whether a pot is placed at a position corresponding to a resonance module not in a heating state when part of the resonance modules in the electromagnetic heating circuit are in the heating state.

1. The name of the design product: coil disc support. 2. The use of the design product: coil winding support for electromagnetic heating products. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: design 1 perspective view. 5. Design 1 is designated as the basic design.

The utility model relates to the technical field of food processing equipment, in particular to multifunctional puffing equipment which is composed of a screw power system, a feeding system, a puffing system, an electromagnetic heating device, a control box and a base. Continuous quantitative feeding is kept under the airtight condition, materials are heated, boosted and cured through electromagnetic heating and pressurizing of the puffing cavity, discharging, continuous quantitative feeding and discharging are achieved through the intelligent pulse type air escape valve under propelling of rotation of the screw, the industrialization degree and the automation degree are improved, and heat loss and noise pollution are reduced. And a forming processing device is additionally arranged at the discharge hole, so that a formed product can be produced. According to the present invention, the airflow puffing principle and the extrusion puffing principle are combined together, such that the defects that the continuous feeding cannot be performed through the airflow puffing and the extrusion puffing machine barrel cannot rotate are overcome, and the heating and pressurization method of the puffing cavity is adopted so as to reduce the internal friction force of the machine part, and improve the puffing efficiency and the quality of the puffed material.

The utility model discloses a deicing device which is used for deicing a battery replacing vehicle, a battery pack of the battery replacing vehicle is installed at the bottom of a vehicle body through a locking mechanism so that quick replacement of the battery pack can be achieved, the deicing device comprises a movable vehicle body and an electromagnetic heating unit installed on the vehicle body, and the electromagnetic heating unit can generate an alternating electromagnetic field on the periphery of the electromagnetic heating unit; the machine body can move to the bottom of a vehicle body of the battery changing vehicle and enables the bottom of the vehicle body and / or the locking mechanism to be heated under the action of the alternating electromagnetic field of the electromagnetic heating unit so as to conduct deicing operation on the bottom of the vehicle body and / or the locking mechanism. Heat for hot melting of the ice layer comes from heat energy generated by the locking mechanism and / or the vehicle body, and the heat energy is transmitted into the ice layer in a direct contact solid conduction mode, so that the transmission loss of the heat energy from the locking mechanism and / or the vehicle body to the ice layer is greatly reduced, the ice layer receives the heat from the locking mechanism and / or the vehicle body to a large extent, and the service life of the ice layer is prolonged. And the ice melting efficiency is greatly improved.

The invention belongs to the technical field of induction cookers, and discloses a low-power continuous electromagnetic heating technology and an induction cooker, the resonant frequency of an LC resonant circuit is designed to be greater than 18kHz, and a SiC MOSFET device works at a switching frequency higher than the resonant frequency, so that the low-power continuous electromagnetic heating technology is realized. The intermittent heating problem of'stop-start-stop-start 'caused by too small duty ratio during low-power heating of the existing induction cooker is effectively solved; according to the technical scheme, the power-duty ratio mapping data is obtained through the MCU module, and the duty ratio and the pulse width of the PWM signal are accurately calculated according to the target power, the target switching frequency and the timer clock frequency, so that continuous and stable energy output is realized under low power; the electromagnetic oven can effectively solve the problems of intermittent heating, unstable circuit work, increased energy consumption and noise of the existing electromagnetic oven during low-power heating.

The invention discloses an intelligent electromagnetic heating safety control system for an oil field, and relates to the technical field of heating control, the system is composed of a plurality of functional modules, and the system comprises a feature extraction module for collecting time sequence data of intelligent electromagnetic heating equipment, including air outlet temperature, pressure and hot air flow, performing phase-space reconstruction on the time sequence data, performing singular value decomposition on the reconstructed time sequence data, and extracting dynamic association features; the data migration module is used for constructing a health model adaptive to a new working condition by adopting a deep migration learning method and combining with the time sequence data under the current working condition based on normal operation data under historical similar working conditions; and the fault prediction and diagnosis module is used for acquiring the dynamic correlation features, inputting the dynamic correlation features into the health model to obtain health feature representation, health degree and fault prediction time, calculating residual errors based on the health feature representation, introducing time-frequency features, and adopting a support vector machine classifier to take the time-frequency features and the residual errors as input.

The invention discloses an electromagnetic heating system, and a method and a device for detecting the thermistor of the electromagnetic heating system. The method comprises the following steps of: recording the temperature value obtained by the thermistor as a first temperature value when the electromagnetic heating system is powered on; recording the temperature value obtained by the thermistoras a second temperature value when the electromagnetic heating system is in a standby state; obtaining the maximum temperature value and the minimum temperature value of the temperature value obtainedby the thermistor in a continuously preset second preset time every other first preset time during the heating process of the electromagnetic heating system; and judging whether the thermistor is ina failure state or not according to the first temperature value and / or the second temperature value, the maximum temperature value, and the minimum temperature value. The method for detecting the thermistor of the electromagnetic heating system judges whether the thermistor fails or not according to the static temperature values at the time of power-on and standby and the dynamic temperature valuein the heating process, so that the accuracy and the reliability of the judgment are greatly improved, and the safety of the system is improved.

The invention discloses an electromagnetic heating device for an oil storage barrel, and belongs to the technical field of heating devices. The oil storage barrel electromagnetic heating device comprises a heating mechanism and a main body, the heating mechanism comprises a base, a heating chamber and a fixing column, a heating sleeve is fixedly installed at the upper end of the base, the heating chamber is arranged in the heating sleeve, and the upper end and the lower end of the heating chamber are connected with the upper end and the lower end of the interior of the heating sleeve correspondingly; a heating core is rotationally sleeved with the heating chamber, a plurality of spiral fins are fixedly installed on the outer side of the heating core and are arranged in the circumferential direction of the axis of the heating core, the fixing column is arranged in the heating core, and the top end of the fixing column is connected with the top end of the interior of the heating chamber; the main body comprises a bottom frame, and an electromagnetic heater is fixedly mounted on one side of the upper end of the bottom frame, so that the practicability of the electromagnetic heating device for the oil storage barrel can be effectively improved, and the electromagnetic heating device has high practical value.

The utility model discloses a sectional type electromagnetic air heating electric heating appliance which comprises a heating cylinder, an air heating system, an electrical unit and an electromagnetic heating system, and the air heating system, the electrical unit and the electromagnetic heating system are arranged in the heating cylinder. The electromagnetic heating system comprises a plurality of sectional electromagnetic material sensing bodies arranged in the heating cylinder and an electromagnetic induction coil arranged outside the heating cylinder, and a supporting unit used for containing cigarettes is arranged on the upper portion of the electromagnetic heating system. According to the sectional type electromagnetic air heating electric heating appliance, temperature compensation control can be carried out according to user requirements, heating is even, and suction experience can be improved.

The utility model discloses an internal heating type electromagnetic oven, which comprises an oven body and an electromagnetic heating component arranged in the oven body, the electromagnetic heating component comprises a central tube arranged in the oven body, an electromagnetic coil wound on the central tube and a heating cylinder sleeved outside the electromagnetic coil, and the heating cylinder is made of electromagnetic induction materials. And the central tube is made of a non-magnetic material. After the electromagnetic coil is powered on, the heating cylinder emits heat, and therefore food in the oven body is heated in an electromagnetic heating mode. Due to the fact that the heating cylinder is located in the center of the furnace cavity in the furnace body, the heating cylinder serves as a heat source, the temperature of the heating cylinder is the highest, and the heating cylinder is surrounded by the furnace cavity, most heat emitted by the heating cylinder can be used for heating the furnace cavity, only the portions, connected with the furnace body, of the two ends of the heating cylinder have little heat loss, and therefore the heat utilization efficiency is improved.

The invention discloses a working parameter determination method and device, electromagnetic heating equipment and a storage medium, the method is applied to the electromagnetic heating equipment with a plurality of detection devices, and the detection devices are used for detecting working parameters of corresponding positions; the method comprises the steps that under the condition that electromagnetic heating equipment heats cookware, detection devices covered by the cookware are classified into detection groups according to the current heating position of the cookware; and determining the working parameters corresponding to the cookware according to the detection data corresponding to the detection device with the normal working state in the detection group under the condition that the working state of at least one detection device in the detection group is abnormal and the working state of at least one detection device in the detection group is normal, so that the working parameters of the cookware are determined according to the detection data corresponding to the detection device with the normal working state in the detection group. Under the condition that the working states of part of the detection devices are abnormal, the working parameters can be determined through the detection devices in the normal working states, and the probability of normal working of the electromagnetic heating equipment is effectively improved.

The embodiment of the utility model provides an electromagnetic heating assembly and an electromagnetic heating device, and the electromagnetic heating assembly comprises a coil which is provided with a first side for arranging a to-be-heated part; the shielding piece covers the first side of the coil, the shielding piece comprises at least two shielding combs, and the at least two shielding combs are uniformly arranged in a circumferential mode. By covering the shielding piece on the coil, at least part of electromagnetic waves can be shielded, so that the influence of electromagnetic interference on other electronic equipment is reduced; moreover, the shielding piece is arranged to be in the shape of the shielding comb, so that the area of the shielding piece can be reduced on the basis of shielding at least part of electromagnetic waves, and the heat productivity of the shielding piece is further reduced.

The utility model relates to the technical field of bicycle chain wheel production, in particular to bicycle chain wheel carburizing and quenching equipment which comprises a base, a first groove body is formed in the top of the base, a heating assembly is arranged on the inner side of the first groove body, and the heating assembly comprises a stainless steel plate fixed to the inner side of the first groove body through bolts. An electric heating wire is fixed in the stainless steel plate through a bolt; the electric heating wire can heat the carburizing material and the bicycle chain wheel in the first groove body to 900-950 DEG C, carburizing is conducted on the bicycle chain wheel, the carburized bicycle chain wheel can be heated through the electromagnetic heater, the heated bicycle chain wheel is moved into clear water in the second groove body, quenching is conducted on the bicycle chain wheel, and the service life of the bicycle chain wheel is prolonged. The sliding sleeves at the two ends of the interior of the structural base are arranged on the outer sides of the transverse rods in a sleeving mode, so that the pushing assembly can move, the bicycle chain wheel can move between the first groove body and the second groove body, and the bicycle chain wheel can be directly quenched after being carburized.

The well mouth electromagnetic heating device comprises a shell, the shell is of a hollow structure, an insulating layer is fixedly installed on the inner wall of the shell, a spiral electromagnetic induction coil is fixedly installed on the inner wall of the insulating layer, an inner ring of the electromagnetic induction coil is installed on a heat preservation layer in a winding mode, and a heating tank is fixedly installed on the inner wall of the heat preservation layer. The stirring column and the metal rod rotate along with the rotating rod to stir liquid in the heating tank, so that different parts of the liquid are fully mixed, the metal rod generates induction heat under the action of a magnetic field, the heat can be diffused in the liquid more quickly and uniformly, the phenomenon of temperature stratification is avoided, and the heating uniformity is further improved. Cleaning liquid is injected into the first channel of the rotating rod through the connector, the cleaning liquid is sprayed out of the nozzle through the second channel, the sprayed cleaning liquid comprehensively cleans the interior of the heating tank, meanwhile, the scraping plate can scrape the inner wall of the heating tank in the stirring process, and impurities or precipitates in the liquid are prevented from being attached to the inner wall.

The utility model relates to the field of plate processing, in particular to an electromagnetic heating device for plate shape regulation and control and a control system.The electromagnetic heating device comprises a rolling mill assembly, a driving assembly is arranged at one end of the rolling mill assembly, a heating assembly is fixedly installed on one side of the rolling mill assembly, and a temperature measuring assembly is fixedly installed at the other end of the rolling mill assembly; the heating assembly comprises a first mounting frame, one end of the first mounting frame is fixedly connected with the machine frame, a heating plate is fixedly mounted in the end, facing the machine frame, of the first mounting frame, a plurality of mounting grooves are formed in the top of the heating plate and arranged in a rectangular array, and shielding cylinders are fixedly mounted in the mounting grooves. And a heating coil is fixedly installed in the shielding cylinder, a cover plate is fixedly installed at the top of the shielding cylinder and made of copper, a heat preservation cover is fixedly installed at the top of the heating plate, and the effects that the temperature of the plate is kept uniform during rolling, and the machining quality of the plate is improved are achieved.

This application discloses an electromagnetic heating circuit, a control method, a device, and an electrical device. The electromagnetic heating circuit includes N resonant modules, an inverter module, N pot detection modules corresponding one-to-one with the N resonant modules, N switching switches corresponding one-to-one with the N resonant modules, a first expansion module, and a control module. The first expansion module may include multiple first expansion units, with any N first connection terminals of the multiple first expansion units connected one-to-one with the N pot detection modules. A first common connection terminal is connected to a first interface of the control module, allowing the control module to receive N pot detection signals output by the N pot detection modules through multiple first interfaces, while the number of first interfaces is much smaller than the number of pot detection modules. Therefore, the electromagnetic heating circuit in this application can expand the input of the control module by setting a first expansion module, thereby saving interface resources of the control module and reducing the difficulty of chip selection.

This utility model relates to a leveling device for molybdenum sheets after rolling. This utility model effectively solves the problems of uneven leveling, difficulty in effectively eliminating longitudinal and transverse deformation of molybdenum sheets, and difficulty in eliminating residual stress within the molybdenum sheets caused by existing leveling devices. This molybdenum sheet leveling device allows the upper and lower sets of movable pressure rollers to simultaneously form a V-shaped arrangement, applying a combined radial extrusion force and axial tensile force to the molybdenum sheet. This effectively eliminates longitudinal and transverse deformation residual stress of the molybdenum sheet simultaneously, thus solving the problem of incomplete stress elimination caused by traditional uniaxial leveling. The bottom roller mechanism and the top pressure roller mechanism can also level the molybdenum sheet and form a continuous roller pressing channel, achieving uniform conveying of the molybdenum sheet and significantly improving leveling efficiency. The electromagnetic heating unit can heat the molybdenum sheet, reducing its yield strength, making it easier to eliminate deep residual stress, improving deformation recovery rate, and thus improving the processing quality of the molybdenum sheet.

The invention relates to the technical field of solid waste harmless and recycling equipment, in particular to a gradient temperature pyrolysis-melting vitrification integrated treatment device and process for red mud. According to the device, an electromagnetic heating rotary kiln pyrolysis section and an electrode melting section are directly coupled with a material transfer device through high-temperature atmosphere isolation. The process comprises the following steps: granulating red mud, a reducing agent and a flux, feeding into a rotary kiln of which the temperature is accurately controlled by multiple groups of electromagnetic induction coils in a partitioned manner, and sequentially completing dehydration, selective reduction and iron particle polymerization to produce gt; high-temperature pyrolysis slag at 1000 DEG C; the pyrolysis slag directly falls into an electric melting pool to complete melting and iron-slag liquid phase separation under absolute isolation of reducing atmosphere and oxidizing atmosphere by the device, and pig iron and a stable glass body are respectively obtained. Through the design of'hot slag direct melting 'and'energy closed loop', the problems of high energy consumption and complex flow of the traditional process are solved, and efficient recovery of iron resources in the red mud and thorough harmless and high-valued utilization of the residues are realized.

The embodiment of the invention provides a winter construction reinforced concrete electromagnetic curing method and system based on a layered progressive mathematical control framework, and belongs to the technical field of crossing of intelligent construction, advanced process control and computational mathematics. The method comprises the following steps: acquiring temperature, hydration degree and environmental parameters in real time, performing space-time fusion with electromagnetic heating input, constructing a maintenance state feature vector, establishing a parameterized grey box prediction model based on a multi-physics coupling mechanism, and realizing online joint estimation of state and model parameters by combining Bayesian inference and unscented Kalman filtering. On this basis, distributed robust model predictive control is introduced, modeling is carried out on external disturbance uncertainty, an optimal heating strategy is generated, finally, execution of all heating subareas is coordinated through a distributed cooperative control algorithm, global optimization of the maintenance process is achieved, the temperature difference risk in winter construction is effectively reduced, and the maintenance efficiency is improved. The maintenance energy efficiency and the system operation stability are improved.

The utility model discloses a mould temperature monitoring device, which relates to the technical field of mould heating and comprises a base, a groove is arranged on the upper end face of the base, a bottom heat insulation layer is arranged at the bottom of the groove, a bearing plate is arranged above the bottom heat insulation layer, a plurality of square grooves are uniformly arranged on the upper end face of the bearing plate, and the square grooves are communicated with the bottom heat insulation layer. A square groove is formed in the base, an electromagnetic heating unit is installed in the square groove in an embedded mode, a heating plate is arranged above the bearing plate, a soaking plate is arranged above the heating plate, a plurality of temperature sensors are evenly embedded in the upper end face of the soaking plate, and a forming mold is arranged at the position, over the soaking plate, above the base. The heating plate is heated through the electromagnetic heating units (heating is carried out according to the electromagnetic induction heating principle), the starting number of the electromagnetic heating units is controlled, then the heating temperature of the heating plate is controlled, the energy utilization efficiency of the device can be improved, cost is saved for manufacturing enterprises, and the bottom heat preservation layer plays a role in preliminarily preserving heat for the heating plate.

The application discloses a cooking equipment capable of quickly raising and lowering temperature and a control method thereof. The cooking equipment comprises a cooking equipment body, and further comprises a water storage tray arranged on an inner cavity of the cooking equipment body, a cold water circulating device for injecting or extracting cold water into or out of the water storage tray, a hot water circulating device for injecting or extracting hot water into or out of the water storage tray, an electromagnetic heating device arranged at the bottom of the water storage tray, an ultrasonic atomizer assembly for spraying cold water atomized water vapor into the inner cavity of the cooking equipment body, and a temperature sensor arranged in the water storage tray. The application can not only maintain the soup water at 100 DEG C for continuous boiling within a set time, but also quickly lower the cavity and the soup water to a target temperature through a cooling stage according to the temperature condition of nutrient substances or harmful substances separated from food materials. The application has the advantages of simple structure and convenient use.

The invention discloses a convection-enhanced electromagnetic heating type fused salt single-tank heat storage device, which comprises a heat insulation shell, a heat exchange tube, a heat exchange tube, a heat exchange tube, a heat exchange tube, a heat exchange tube, a heat exchange tube, a heat exchange tube and a heat exchange tube, and is characterized in that the heat insulation shell is provided with a heat insulation space, an inlet and an outlet; the heat exchange core is arranged in the heat insulation space and comprises a plurality of heat exchange pipelines, an inlet pipeline and an outlet pipeline, the heat exchange pipelines extend in the circumferential direction of the heat insulation shell, the heat exchange pipelines are concentrically arranged at intervals and communicate with one another, the inlet pipeline communicates with the heat exchange pipelines and the inlet, and the outlet pipeline communicates with the heat exchange pipelines and the outlet; and the electromagnetic heating metal pipe set comprises a plurality of heating pipes, and the heating pipes are arranged between any two adjacent heat exchange pipelines. According to the electromagnetic heating type fused salt single-tank heat storage device capable of strengthening convection, the heating speed of fused salt during energy storage can be increased, the fluidity of fused salt during energy release can be improved, natural convection of fused salt is formed, the heat exchange efficiency is improved, and the operation reliability is guaranteed.

The utility model relates to the field of metal product processing, in particular to copper wire drawing equipment which comprises a wire drawing machine body and the like, one side of the top surface of the wire drawing machine body is provided with a pay-off assembly, the pay-off assembly is used for releasing a copper wire to be drawn, the other side of the top surface of the wire drawing machine body is provided with a take-up assembly, and the pay-off assembly is used for accommodating the drawn copper wire; the cooling water tank is arranged on the top surface of the wire drawing machine body and is used for cooling the preheated copper wire; the winding assembly is composed of a plurality of pulleys, and the pulleys on the winding assembly are arranged at the bottom and the top of the cooling water tank respectively. According to the utility model, the surface of the electromagnetic heating roller is provided with the heat conduction lines, so that a copper wire can be uniformly preheated, the copper wire becomes soft and is easy to stretch, and the design of the springs on the two groups of bearings ensures that the electromagnetic heating roller can be tightly attached to the copper wire, so that the heating consistency is improved, and the subsequent copper wire drawing effect is improved.