105 results about "Radiofrequency heating" patented technology

The invention relates to an arc slab manufacturing device and a manufacturing process. The arc slab manufacturing device comprises a rack, a device body arranged on the rack, a bearing table fixedly arranged in the device body, a mold arranged above the bearing table, a buckle cover arranged on the top of the device body and a plurality of radio frequency heaters arranged on the buckle cover. The fixing frame is arranged between the buckle cover and the device body and is hinged to the device body; the flexible molding film is arranged on the fixed frame and is positioned above the mold; the positioning and fixing mechanism comprises a positioning assembly and a fixing assembly; the positioning assembly is arranged on the die and used for automatically aligning and positioning the plate-shaped profile relative to the center of the die. The fixing assembly is arranged between the mold and the vacuum pump device and used for fixing the aligned and positioned plate-shaped sectional materials. The device has the effects that the plate-shaped profile can be conveniently and stably placed at the arc top of the mold, the positioning accuracy of the placement position of the plate-shaped profile is improved, and the positioning difficulty and the rejection rate are reduced.

An impedance matching method and apparatus for a radio frequency heating smoking set, and an electronic device. The method comprises: when it is detected that a target cigarette is inserted, acquiring parameter information of a radio frequency power supply; controlling the radio frequency power supply to transmit a preset measurement current to electrode plates, calculating, on the basis of the parameter information, measurement working power corresponding to the preset measurement current, and determining, on the basis of the measurement working power, load impedance of the target cigarette; and when the load impedance is not matched with power supply impedance of the radio frequency power supply, generating, on the basis of the load impedance, adjustment information used for adjusting an alternating current frequency of the radio frequency power supply until the load impedance is matched with the power supply impedance. According to the present invention, after the target cigarette is inserted into the smoking set, the specific load impedance of the target cigarette is calculated and determined according to the measurement working power between the electrode plates, and then the load impedance is adjusted by adjusting the alternating current frequency of the radio frequency power supply, so that the load impedance is matched with the power impedance, and the optimal power use efficiency is achieved.

The invention provides an aerosol generation device, a heating control method thereof and a storage medium, and the heating control method comprises the steps: S1, a control assembly obtains frequency error data, and the frequency error data represents error data between the resonant frequency of a heating assembly and a target frequency; s2, performing fuzzification processing on the frequency error information by the control component to obtain a target frequency adjustment parameter; s3, the control component adjusts the resonant frequency according to the target frequency adjustment parameter to obtain a target output frequency; s4, the control assembly controls the heating assembly to conduct heating according to the target output frequency. According to the heating control method, a radio frequency heating system frequency dynamic regulation and control strategy based on real-time capacitance monitoring and fusing fuzzy control and a fast Fourier transform (FFT) algorithm is creatively applied, and the purpose is to guarantee that a heating assembly can always accurately run in the optimal resonant frequency interval, and efficient and stable heating performance is achieved.

The invention discloses a calcium carbonate phase change cementing material hardened body as well as a preparation method and application thereof. The preparation method of the calcium carbonate phase change cementing material hardened body comprises the following steps: firstly, uniformly mixing vaterite and a crystal form regulating agent, then adding water, stirring to obtain slurry, after the slurry is formed, carrying out radio frequency heating maintenance with the radio frequency heating frequency of 300KHz-300GHz and the power of 500-900W, and after the radio frequency heating maintenance, carrying out vacuum drying to obtain the calcium carbonate phase change cementing material hardened body. The calcium carbonate phase change cementing material hardened body is prepared. Compared with steam curing, the mode of curing the calcium carbonate phase-change cementing material through radio frequency heating can better promote accumulation of the calcium carbonate phase-change cementing material precursor and conversion of part of the calcium carbonate phase-change cementing material precursor to target mineral aragonite, enables an interface to be fused and bonded, remarkably improves the compressive strength, and is worthy of popularization and application.

According to the coal in-situ fluidized mining method based on the radio frequency heating technology, after coal seam parameters are determined through geological exploration, an L-shaped heating well is arranged in the middle of a coal seam, an L-shaped production well is arranged on the top of the coal seam, and a high-permeability fracture network is constructed by adopting a liquid CO2 high-pressure fracturing technology. And then deploying a radio frequency heating device in the heating well, and promoting in-situ pyrolysis and gasification of the coal seam to generate raw gas such as CH4 and CO by accurately regulating and controlling power and frequency. According to the coal in-situ fluidization mining method, through the synergistic effect of'fracturing-supporting-radio frequency excitation ', continuous conversion of coal solid-state energy to flow-state energy and direct extraction of gas-state products by the production well are achieved, the functions of efficient mining and CO2 geological storage are achieved, environmental damage and safety risks generated by traditional mining are remarkably reduced, and the coal in-situ fluidization mining method is suitable for industrial production. And an innovative path is provided for green development of coal resources.

The invention relates to the technical field of poultry meat processing, in particular to a chilled fresh poultry meat processing method for improving the quality of raw material meat. The method comprises the following steps: carrying out radio frequency heating treatment on poultry meat, and then carrying out air cooling until the geometric center temperature of the poultry meat reaches 10 DEG C or below; the distance between the polar plates subjected to radio frequency heating treatment is 70-80mm, and the temperature is 45-60 DEG C. The method is simple and easy for large-area popularization and application; the poultry meat is processed by adopting the method disclosed by the invention, so that the elasticity and toughness of the raw material meat can be furthest maintained, and the shelf life of the chilled fresh poultry meat can be prolonged.

The invention discloses a 16-in-one high-power combiner working in a radio frequency band, and belongs to the technical field of fusion radio frequency heating. The invention comprises a coaxial input hard feeder line, a radial transmission line (RTL), a gradient impedance matching coaxial line and a coaxial output hard feeder line. The physical size is designed through theoretical calculation, electromagnetic field distribution is optimized through simulation, 16 radio-frequency signal input ports are designed through radial symmetric topology, a radial transmission line serves as a main synthesis path of radio-frequency signal source power, the power input by the 16 radio-frequency signal source ports is subjected to one-step efficient synthesis in the center of the radial transmission line, and the radio-frequency signal source power is obtained. And the 50-ohm characteristic impedance standard output of the synthesized radio frequency signal power is realized through an impedance matching technology. The sixteen-in-one power combiner designed by the invention has the characteristics of high synthesis efficiency, symmetrical structure, good amplitude and phase consistency, high isolation, low return loss, low reflection loss, simple design structure, easiness in manufacturing and the like.

The invention provides a radio frequency heating effect prediction method, electronic equipment, a storage medium and a program product, and relates to the technical field of oil and gas resource development. The method comprises the steps that physical property parameters of a target reservoir are obtained, the physical property parameters comprise electromagnetic property parameters and thermophysical property parameters, and the electromagnetic property parameters at least comprise conductivity and relative dielectric constants; based on a prediction model and the physical property parameters, the heating effect of the target reservoir under the radio frequency heating condition is obtained, and the prediction model is obtained by optimizing a preset heat transfer equation based on the electromagnetic property and the thermophysical property of the reservoir. The method is used for improving the prediction accuracy of the radio frequency heating effect.

The invention belongs to the technical field of sludge recycling, and particularly relates to a sludge continuous concentration-disintegration-anaerobic fermentation process and device.The process comprises the following steps that the radio frequency and the radio frequency power of polar plate capacitive loads of a radio frequency heating mechanism are adjusted by adjusting a radio frequency power source, sludge is introduced between the polar plate capacitive loads to be concentrated, and the sludge is subjected to anaerobic fermentation; liquid generated by sludge concentration is discharged out of the polar plate capacitive load, the concentrated sludge enters the anaerobic fermentation tank, the sludge is continuously filtered through a membrane assembly in the anaerobic fermentation tank, and the filtered sludge and liquid are respectively discharged out of the anaerobic fermentation tank. According to the sludge treatment device, the sludge is subjected to radio-frequency pretreatment by arranging the radio-frequency heating mechanism, the sludge is cracked and concentrated synchronously, the occupied area is small, the breaking acceleration of the sludge is high, the energy utilization rate is high, and therefore the cost of the sludge treatment device is reduced; the radio frequency heating mechanism is coupled with the anaerobic membrane bioreactor, so that continuous pretreatment and fermentation of the sludge are realized.

The invention discloses a radio frequency heating oil-rich coal in-situ pyrolysis simulation test device and method in the technical field of oil-rich coal in-situ pyrolysis, the test device comprises a sealing tank and a computer, a plurality of limiting plates are arranged in the sealing tank, and a plurality of gas storage assemblies are arranged between the limiting plates and the sealing tank; an injection chamber for filling a microwave absorbent is arranged between every two adjacent gas storage assemblies; a plurality of pressure sensors for measuring pressure data are arranged on one side, far away from the sealing tank, of the limiting plate; the center of the bottom of the sealing tank is fixedly connected with a radio frequency transmitter for transmitting high-frequency electromagnetic waves; the top of the sealing tank is detachably connected with a tank door, and the tank door is provided with geological thermomanometers used for detecting temperature change data and an ultrasonic detection system used for detecting crack development information, wherein the geological thermomanometers and the ultrasonic detection system are alternately arranged. The simulation of the geological environment of the oil-rich coal sample is realized, and the experimental data of the microwave absorbent on the pyrolysis of the oil-rich coal sample under different radio frequency heating temperature conditions in the pyrolysis process of the oil-rich coal sample can be conveniently observed.

The invention provides a paper-based buffer material based on dry forming and radio frequency heating consolidation and a preparation method of the paper-based buffer material, and belongs to the technical field of buffer packaging materials. Paper pulp fibers, bi-component hot melting fibers and functional fibers are subjected to fiber burdening and mixing, dry forming, radio frequency heating consolidation and cooling setting, and finally the high-performance paper-based buffer material is obtained. The preparation method has the advantages of greenness, high efficiency, no water addition and low energy consumption.

The present application relates to the technical field of food heating, and discloses a radio frequency heating system with adjustable distance between positive and negative plates, which comprises a box body, a front door, a back door, a lower plate, an upper plate, a lifting mechanism and a radio frequency power supply, the lower plate is fixed to the inner bottom surface of the box body, the upper plate is arranged on the inner top of the box body above the lower plate, the lifting mechanism is fixed to the outer top of the box body and its lifting output end penetrates through the top surface of the box body and is fixed to the upper surface of the upper plate, and the radio frequency power supply is located outside the box body and electrically connected with the upper plate and the lower plate respectively. By penetrating the lifting output end of the lifting mechanism through the top surface of the box body and fixing it to the upper surface of the upper plate, the distance between the upper plate and the lower plate can be dynamically changed, the impedance value of the capacitor formed between the food to be heated and the upper plate and the lower plate in the circuit can be changed, the distance between the food to be heated and the lower surface of the upper plate can be shortened, the radio frequency heating effect can be improved, and the energy consumption can be reduced.

The invention relates to the technical field of agricultural product processing, and discloses a radio frequency heating drying device which comprises a base plate, a radio frequency heating system and a storage mechanism used for placing materials, an upper polar plate and a lower polar plate are arranged on the base plate, the radio frequency heating system is connected with the upper polar plate and the lower polar plate, and the storage mechanism is located between the upper polar plate and the lower polar plate. The storage mechanism comprises a first shell and a second shell, a storage cavity is defined by the first shell and the second shell, a clamping column is fixedly installed at the lower end of the second shell, a clamping groove matched with the clamping column is formed in the first shell, a partition plate is arranged between the first shell and the second shell, and the partition plate is fixedly installed in the storage cavity. The partition plate divides the storage cavity into an upper part and a lower part, and conical grooves are formed in the upper end and the lower end of the partition plate. The invention aims to solve the problem that when an existing radio frequency heating and drying device is used, the temperature of a barrel opening of a material barrel is still higher than that of other positions, and materials located at the barrel opening are prone to being excessively heated.

A system to predict heating in implants includes a memory configured to store one or more phase images of a medical implant that is implanted within a patient. The one or more phase images include the medical implant and tissue surrounding the medical implant. The one or more phase images are based on an imaging pre-scan of the patient. The system also includes a processor operatively coupled to the memory and configured to analyze the one or more phase images to determine values for one or more properties of the tissue surrounding the implant. The processor also predicts, based at least in part on the analyzed one or more phase images, a temperature increase of the medical implant that will occur during a subsequent imaging scan of the patient.

The present invention relates to a ventilation device for improving the uniformity of radio frequency heating and drying. The device adopts a dual-chamber ventilation structure with inner and outer chambers. The inner and outer chambers are each connected to a hot air blower. The two chambers correspond to the center and edge areas of a material tray above a lower electrode plate through a limiting frame, ensuring that the hot air generated by the two hot air blowers passes through the two chambers and enters the edge and center areas of the material tray respectively. During the drying process, the controller of the hot air blower automatically adjusts its heating temperature based on the temperature monitoring results of the material in the edge and center areas of the material tray, so that the temperature of the material in the edge area of ​​the material tray is the same as that of the material in the center area. The ventilation system modification cost of the present invention is low, the method is simple to operate, and it avoids excessively high temperature of the material in the edge area of ​​the material tray during the radio frequency drying process, thereby ensuring uniform drying of the material.

The beauty instrument comprises a machine body with a working face, at least two sets of electrode pairs with working frequencies gradually changed are sequentially arranged on the working face in one direction, and when beauty work is carried out, all the sets of electrode pairs are sequentially controlled to alternately and circularly work according to the sequence of the working frequencies from high to low. The beauty instrument is faster, deeper, wider and more uniform in heating. The invention further relates to a working method of the beauty instrument. The working method is characterized in that the beauty instrument is adopted; when the beautifying work is started, the electrode pair with the highest working frequency is controlled to work, then the electrode pairs are sequentially controlled to alternately and circularly work according to the sequence of the working frequencies from high to low, one electrode pair stops working after meeting the set condition, and the next electrode pair is started to work. According to the working method of the beauty instrument, quicker, more uniform and deeper radio frequency heating with a large action area can be realized. The invention further relates to a computer readable storage medium, computer instructions are stored in the computer readable storage medium, and the computer instructions are used for enabling a computer to execute the working method of the beauty instrument.

In an embodiment, the present disclosure pertains to a method of direct ink writing (DIW). In general, the method includes extruding a resin from a print head, applying radio frequency (RF) heating to the resin, and inducing partial curing of the extruded resin layer-by-layer to thereby form a self-supporting structure. In an additional embodiment, the present disclosure pertains to a system for DIW. In some embodiments, the system includes a print head operable to extrude a resin from a nozzle and an RF applicator.

The application discloses a sun-cured tobacco distillation processing technology method, and relates to the technical field of tobacco processing, in particular to a sun-cured tobacco distillation processing technology method.The application constructs a mapping relationship between raw material dielectric fingerprints and thermal response characteristics, combines with a coplanar waveguide sensor array to collect data in real time, uses a neural network to predict the thermal release starting temperature of key aroma components, dynamically allocates radio frequency heating parameters, realizes a gradient heating process including low-frequency uniform preheating, medium-frequency selective excitation and high-frequency local focusing, and effectively improves the recovery rate of target aroma components and the retention rate of heat-sensitive components.The application has beneficial effects such as online self-adaptive regulation and control, high extraction efficiency and continuous model optimization.The application constructs a dielectric fingerprint-thermal response characteristic correlation model, realizes the regulation and control of a heating strategy driven by the inherent physical properties of raw materials, significantly improves the scientificity and accuracy of process control, automatically adapts an optimal thermal treatment path without manual intervention, and greatly improves batch consistency and target component recovery stability.

The invention relates to a power supply device for a heating device. The power supply device comprises at least two functional modules; the radiator comprises radiating fins and wall parts extending in the flowing direction of radiating airflow, the wall parts comprise a first wall part and a second wall part, and the second wall part is transverse to the first wall part when viewed in a section perpendicular to the flowing direction; wherein the inner cavity of the power supply equipment is divided into at least three air channels by the first wall part and the second wall part, and at least two of the at least three air channels are configured to be suitable for correspondingly accommodating the at least two functional modules of the power supply equipment. The invention further relates to a corresponding heating device and a refrigeration appliance. The power supply device has the advantages that heat dissipation power distribution which is as appropriate as possible can be provided in a limited space, so that different heat dissipation requirements of each module of the power supply device for the heating device, especially the radio frequency heating device, can be met.

The present invention provides a processing method for rice bran, which includes the step of radio frequency heating the frozen rice bran. The crude oil obtained by extracting oil from the rice bran processed by the processing method of the present invention has the advantages of less gum and wax and light color, thereby reducing the difficulty of subsequent refining of the crude rice bran oil and reducing the loss of neutral oil and nutrients.

The present application relates to the field of biomedical engineering. Disclosed are an individual impedance-based radio-frequency heating temperature field prediction method and system which greatly improve the rate and accuracy of temperature distribution prediction. The method of the present application comprises: creating a first region; obtaining a position of an ablation needle, and with the ablation needle as a center, creating a second region in the first region; keeping the electrical conductivity within the second region constant, and adjusting the electrical conductivity in the first region such that impedance between the ablation needle and an earth pole is consistent with real individual impedance actually measured by a treatment system; performing mesh division on a combination of the first region and the second region and performing coupling computation using a radio-frequency field model and a biological heat transfer model to obtain temperature field time-space information.

The invention discloses a polyacrylonitrile-coated copper-doped manganese-based Prussian blue positive electrode material as well as a preparation method and application thereof, and belongs to the field of sodium ion batteries. The synthesis method is novel in preparation method, simple and feasible in process and high in controllability. By doping copper ions, the structural stability of the manganese-based Prussian blue is improved, and the redox activation of low-spin Fe < 2 + > / Fe < 3 + > coupling is improved, so that higher capacity contribution under higher voltage is obtained; polyacrylonitrile is used as a coating layer, so that the problem that the content of internal crystal water and Fe (CN) 6 defect vacancies is relatively high due to the fact that the positive electrode material is eroded by external substances such as oxygen and water vapor can be prevented; in addition, by adopting the radio frequency heating technology, high-quality Prussian blue crystals can be formed, and the electrochemical performance of the material can be improved. The positive electrode material has outstanding performance in the application of the positive electrode of the sodium-ion battery.

The invention discloses a high-quality marinating composite method for trotters, and belongs to the technical field of food processing. The preparation method comprises the following steps: firstly, cleaning raw materials, reducing fishy smell of the raw materials, tenderizing the raw materials in an electric field, then preparing brine, performing ultrasonic-vacuum pickling, then performing vacuum packaging and pulse radio frequency heating, and finally quickly cooling and storing at normal temperature. Compared with the traditional pig trotter marinating method, the pig trotter marinated by the method disclosed by the invention is uniform in color and strong in water binding capacity, the tenderness is improved, the loss rate is reduced, and the yield is increased.

The utility model provides a radio frequency heating assembly and an aerosol generating device. The radio frequency heating assembly is used for the aerosol generating device. Wherein the radio frequency heating assembly comprises a radio frequency radiator with a resonant cavity, the radio frequency radiator is provided with a transmission joint, and the transmission joint is used for receiving a radio frequency signal; the resonant cavity comprises an inner area and a peripheral area surrounding the inner area, the inner area is provided with a containing cavity used for containing a heated medium, and the containing cavity is further provided with an opening communicating the containing cavity to the outside; the peripheral area is provided with at least three dielectric bodies which are evenly distributed, and cavities are formed in the dielectric bodies. The radio frequency heating assembly is provided with the dielectric body, and the dielectric body can provide a capacitance value for the resonant cavity, so that the resonant cavity can still keep a proper resonant frequency when the size of the device is reduced.

A radio frequency (RF) heating system and process for rapidly and uniformly heating a plurality of articles on a convey line.

The present invention relates to the field of medical equipment technology, and in particular to a control device for radio frequency heating of dry eyes based on a multipolar radio frequency therapeutic device, comprising: an information input unit for receiving basic information and dry eye symptom information of a current user to be treated; an information processing unit for generating a radio frequency energy contact area of ​​the eyelid part of the current user to be treated according to the basic information and dry eye symptom information; a temperature control unit for outputting the heating temperature and heating time of each contact area at a specified frequency according to the basic information and dry eye treatment information using a pre-established network analysis model for temperature analysis. The present invention makes dry eye treatment more convenient and effective.

The utility model discloses a multipurpose radio frequency heating appliance which comprises a radio frequency output body and an energy utilization head. The radio frequency output body comprises a power supply and a radio frequency generator; the radio frequency generator converts an electric signal into a radio frequency signal under the power supply of the power supply; the energy utilization head specifically comprises a smoking set heating head and a skin beautifying head. A heating cavity is further formed in the smoking set heating head, and the heating cavity is used for receiving a radio frequency signal and heating a heating cigarette inserted into the heating cavity; and positive and negative electrode points are also arranged on the outer surface of the skin beautifying head, and are used for receiving radio frequency signals and contacting with the skin for beautifying. The radio frequency generation device and the radio frequency utilization device are arranged in a split mode, the multifunctional assembly can share the single radio frequency generation device through the replaceable smoking set heating head and the replaceable skin beautifying head, and different purposes are achieved by replacing different energy utilization ends and adapting to different application scenes of the radio frequency energy output end.

An aerosol generating device, and a method for controlling heating of the aerosol generating device. The aerosol generating device comprises a radio frequency source, and a power supply and a radio frequency heating assembly both connected to the radio frequency source. The power supply is used for providing a direct current signal to the radio frequency source. The radio frequency source is used for converting the received direct current signal into an electromagnetic wave signal and transmitting the electromagnetic wave signal to the radio frequency heating assembly. The radio frequency heating assembly comprises a radio frequency radiator (1) in which a resonant cavity (13) is formed and a transmission connector (3) mounted on the radio frequency radiator (1). The transmission connector (3) is used for receiving the electromagnetic wave signal to cause the resonant cavity (13) to generate resonance. A coaxial accommodating cavity (131) is further formed in the resonant cavity (13). The accommodating cavity (131) is used for accommodating a medium to be heated (5). A notch (14) is formed on the radio frequency radiator (1). The notch (14) is in communication with the resonant cavity (13) and is arranged on the outer side of the accommodating cavity (131) in an annular configuration.

A vertical HVPE growth device for growing single crystal gallium nitride, comprising a cavity tube, a gas source area, a single crystal growth tray and a heating system; the gas source area is composed of a plurality of gas conduits nested, and the heating system comprises three heating devices corresponding to three temperature zones, in the order from top to bottom of the vertical HVPE device, in turn, the first heating device corresponding to the first temperature zone 800-900 DEG C, the second heating device corresponding to the second temperature zone 1400-1600 DEG C, and the third heating device corresponding to the temperature zone 1000-1100 DEG C, wherein the second heating device is a radio frequency coil. The gas conduit is composed of three parts spliced, from top to bottom, a quartz part, an insulation part and an induction part. The application can effectively inhibit the premature reaction of the gas by improving the heating system of the vertical HVPE growth device and the gas conduit, setting three specific temperature zones and controlling the temperature of the second temperature zone by radio frequency heating, and at the same time can ensure the full mixing of NH3 gas and GaCl gas in the single crystal growth tray, which is conducive to the generation of high-quality single crystal gallium nitride.