35 results about "Radiofrequency heating" patented technology

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 utility model discloses a device for cooperatively treating excess sludge based on radio frequency heating and alkali, belongs to the technical field of sewage sludge treatment, and solves the problems of high medicine consumption and high energy consumption in the process of independently combining an alkali treatment process and a radio frequency heating technology in the conventional AO (Anaerobic Oxidation) process. The system comprises an AO system, wherein the AO system comprises an anoxic tank, an aerobic tank and a sedimentation tank which are communicated in sequence; a sludge outlet of the sedimentation tank is respectively communicated with a sludge discharge pipe, a sludge return pipe and an alkali liquor sludge return pipe, the sludge return pipe is communicated with the anoxic tank, the alkali liquor sludge return pipe is communicated with a water inlet of the radio frequency heating tank, and a water outlet of the radio frequency heating tank is communicated with a water inlet pipe through a disintegrated sludge return pipe. According to the device, an alkali treatment process and a radio frequency heating technology are coupled for in-situ recycling of sludge through the alkali liquor sludge return pipe and the radio frequency heating tank, the alkali chemical consumption and the radio frequency energy consumption are reduced through the cooperation of the alkali treatment process and the radio frequency heating technology, and the influence of overhigh pH on the nitrogen and phosphorus removal efficiency of the AO system is avoided due to the reduction of the alkali consumption.

This invention discloses a control method for an ion cyclotron resonance heating system, belonging to the field of radio frequency heating control technology. This invention trains a coupling impedance prediction model using ICRH system operating parameters and plasma parameters, and outputs future coupling impedance prediction results during ICRH system operation to characterize the changing trend of the coupling state between the ICRH system and the plasma. During ICRH system operation, the signals required for the coupling impedance prediction model are acquired in real time to predict the matching state of the ICRH system. When the prediction results indicate a potential mismatch in the future coupling impedance, the impedance matching module in the ICRH system is preemptively adjusted to ensure that the ICRH system is always in an optimal matching state. This solves the technical problems of adjustment lag and transient mismatch inherent in existing technologies.

The utility model discloses a radio frequency heating assembly and an aerosol generating device, and relates to the technical field of microwave heating, the radio frequency heating assembly comprises a microwave signal source, a push amplifier, a final amplifier and a heating structure, a microwave signal generated by the microwave signal source is amplified by the push amplifier and the final amplifier in sequence and is transmitted to the heating structure, and the heating structure is used for heating an object to be heated through microwaves; the microwave signal is amplified to a first preset power through the push amplifier and is amplified to a second preset power through the final amplifier, and the push amplifier and the final amplifier are discrete chips. According to the embodiment of the utility model, the heat output stability of the radio frequency heating assembly can be improved.

A radiofrequency treatment system includes a first RF heating channel part upstream of a first cooling channel part, that is upstream of a second RF heating channel part. The radiofrequency treatment system provides radiofrequency waves to the flowable food product in the RF heating channel parts and cools the flowable food product in the cooling channel part, according to a temperature distribution. A temperature of the flowable food product in a cooling channel part downstream of a RF heating channel part is lower than the temperature of the flowable food product in the RF heating channel part upstream of that cooling channel part. Also, a temperature of the flowable food product in a RF heating channel part downstream of a set of a RF heating channel part and a cooling channel part is higher than of the flowable food product in the RF heating channel part of that set.

The utility model discloses a kind of heating box of radio frequency machine, including radio frequency heating box main frame and control system, radio frequency heating box main frame inside is provided with inner box plate, inner box plate is provided with magnetron for being used to carry out radio frequency heating, interval uniform arrangement, the controlled end of magnetron is connected with the output end of control system;The outer box plate of radio frequency heating box main frame outside is provided with the outer box plate of protective effect, outer box plate top is provided with detachable roof;The inner box plate top is also provided with control power module;The utility model carries out radio frequency heating by setting magnetron of uniform distribution on inner box plate top, heating efficiency improves, greatly shorten heating time, and cooperate axial flow fan to carry out even distribution to the airflow in radio frequency heating box, ensure that radio frequency heating box in product heating process is heated evenly, improve heating efficiency.

A multi-tier rack assembly for use in an oven including a cooking chamber, a convective heating system configured to provide heated air into the cooking chamber, and a radio frequency (RF) heating system configured to provide RF energy into the cooking chamber may include a bottom tier rack and a top tier rack. The bottom tier rack may be removable / insertable relative to the cooking chamber to be supported at a bottom wall of the cooking chamber. The bottom tier rack may include a first frame including a plurality of first frame members that surround a first grate structure. The top tier rack may be removable / insertable to be supported by the bottom tier rack. The top tier rack may include a second frame including a plurality of second frame members that surround a second grate structure. Each of the bottom tier rack and the top tier rack may define a lateral gap proximate to sidewalls of the cooking chamber and a rear gap proximate to a back wall of the cooking chamber to permit, along with the first and second grate structures, airflow vertically through, along sides, and along a back of the bottom and top tier racks, respectively.

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 application discloses a movable multi-source radio frequency treatment device and a temperature control method thereof, and relates to the field of radio frequency treatment technology, and comprises a device shell, two steering gears are arranged in the device shell, a small radio frequency heating source is connected to one steering gear, a temperature measuring module is connected to the small radio frequency heating source, one steering gear controls the radio frequency heating source and the temperature measuring module, and the other steering gear controls the overall rotation, the application adds a scanning link before temperature control, calculates the average temperature of the whole area for the next operation, uses a multi-stage temperature regulation mode when regulating the temperature, the target temperature of PID control is not the set temperature value, but the temperature positively correlated with the current temperature, adopts a closed-loop control algorithm to realize automatic control and reduce labor cost, and the multi-stage temperature regulation mode makes the temperature of the control area more balanced.

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 belongs to the technical field of oil and gas development, and discloses a downhole radio frequency heating device and method. The downhole radio frequency heating device comprises a radio frequency antenna, a heating control short section, a frequency modulation module and an oil production rate measuring instrument. The radio frequency antenna is placed in the wellbore of the reservoir area through the oil pipe and radiates electromagnetic waves outward to heat oil and gas. The heating control short section is arranged at the top of the radio frequency antenna and is electrically connected with the radio frequency antenna. The heating control short section is used for adjusting the working voltage of the radio frequency antenna. The frequency modulation module is connected between the ground power supply and the heating control short section, and is used for adjusting the frequency of the output current of the ground power supply to the heating frequency of the radio frequency antenna. The oil production rate measuring instrument is arranged at the top of the oil pipe and is used for measuring the oil production rate in real time. The application adopts the downhole radio frequency antenna heating mode for thermal recovery, solves the problem of excessive heating in a short distance or insufficient heating in a long distance existing in the radio frequency heating, and is beneficial to improving the thermal recovery efficiency.

The utility model discloses a product processing forming is with radio frequency machine, including radio frequency heating box, vacuum tank, silica gel membrane seal frame, control system, silica gel membrane seal frame sets up between radio frequency heating box and vacuum tank, be provided with the first drive module and the second drive module of drive silica gel membrane seal frame overturn in vacuum tank, control system is established in vacuum tank, and the controlled end of radio frequency heating box, vacuum tank, first drive module, second drive module is connected with the output of control system respectively, the utility model discloses the cooperation of radio frequency heating box, silica gel membrane seal frame, vacuum tank by from top to bottom setting in proper order, can gather door panel press fit, wooden door and fit, edge, arc forming etc. Operation in an organic whole, realizes the integrated operation of product processing forming, further reduces the production cost of product forming equipment, improves the production efficiency of equipment.

The invention provides a coal radio frequency heating in-situ conversion hydrogen production experimental device and experimental method. The coal radio frequency heating in-situ conversion hydrogen production experimental device comprises a shaft, a pressure adjusting assembly, a reaction container, a radio frequency assembly, a gas displacement assembly, a gas collection assembly and a data acquisition assembly. The shaft penetrates through the experimental coal sample and is abutted against the inner wall of the experimental coal sample; the radio frequency assembly comprises a radio frequency antenna, and at least one part of the radio frequency antenna is arranged in the shaft; the shaft and the experimental coal sample are arranged in a pressure cavity in the reaction container; the pressure adjusting assembly is communicated with the pressure cavity; the gas collecting assembly is communicated with the pressure cavity; the gas displacement assembly communicates with the pressure cavity and drives gas in the pressure cavity to flow into the gas collection assembly. The data acquisition assembly comprises an optical fiber temperature sensor, and the optical fiber temperature sensor is arranged in the pressure cavity. The problems that existing radio frequency hydrogen production experimental equipment lacks integration of multiple experimental functions and cannot accurately simulate the underground environment can be solved.

An oven may include a cooking chamber configured to receive a first food product, a convective heating system configured to provide heated air into the cooking chamber, a radio frequency (RF) heating system configured to provide RF energy into the cooking chamber, and processing circuitry configured to execute a recipe defining cooking parameters for cooking the first food product. The cooking parameters may define operational settings for the convective heating system and the RF heating system and a nominal cooking time for a first batch including the first food product. The processing circuitry may be operably coupled to a mass adjustment module configured to determine, based on an indication of an addition of a second batch comprising a second food product to the cooking chamber, an overlap period during which the first and second food products are simultaneously cooked and a completion time for cooking the second food product after the overlap period.

The present application relates to a kind of radio frequency heating electrode, radio frequency instrument and radio frequency therapeutic instrument, wherein, radio frequency heating electrode includes outer insulating shell, inner conductive layer and radio frequency cable;The outer insulating shell is hollow shell, and outer insulating shell is provided with wire hole;Inner conductive layer covers the inner wall of outer insulating shell;The radio frequency cable passes through wire hole and extends into outer insulating shell, and is conductively connected with the inner conductive layer;The radio frequency cable is connected with radio frequency instrument mainframe, and radio frequency voltage generated by radio frequency instrument is transmitted to the inner conductive layer;Radio frequency heating electrode is capacitively coupled to the object or object containing polar molecule wrapped the outer wall of outer insulating shell by radio frequency voltage transmitted to the inner conductive layer to generate radio frequency current, to achieve the effect of heating or treating the object or object.

The application discloses an in-situ conversion method of coal seams by radio frequency heating underground, and particularly relates to the technical field of coal seam pyrolysis conversion, and comprises the following steps: injecting a preset fluid to form a fracture network after drilling, and then injecting a preset first material to construct a filling structure with electromagnetic response characteristics; expanding the borehole and filling a preset second material to form a structure area; arranging a radio frequency heating device and a temperature monitoring device to obtain temperature change data; periodically and dynamically calculating a temperature change gradient coefficient and a temperature stable offset coefficient, generating a control parameter data combination based on the two through reasoning, and dynamically regulating and controlling a heating period and a power output in an intermittent heating mode; the application constructs a multidirectional permeation channel fracture network and a differential electromagnetic response structure, optimizes a radio frequency energy coupling path, improves the heating uniformity and conversion efficiency of coal seams, introduces a dynamic coefficient reasoning mechanism based on temperature data, realizes intelligent regulation and control of the intermittent heating period and power, and enhances the safety and adaptability of the system.

The invention discloses gel for an intravaginal radiofrequency therapeutic apparatus, and relates to the technical field of intravaginal radiofrequency therapy. The gel for the radio frequency therapeutic instrument is prepared from the following raw materials in percentage by mass: 0.5 to 1.5 percent of nonionic cellulose ether gel matrix, 50 to 88 percent of humectant and 0.001 to 0.01 percent of citric acid, the balance is water; the nonionic cellulose ether gel matrix is hydroxyethyl cellulose; the weight-average molecular weight of the hydroxyethyl cellulose ranges from 720,000 Da to 13,000 Da; the humectant comprises propylene glycol and glycerol in a ratio of (10-18): (40-70); the pH value of the gel for the radio frequency therapeutic instrument is 3.8-6. The gel for the radio-frequency therapeutic instrument has stable physical and chemical stability in a weak acid vagina environment, keeps stable in a radio-frequency heating state, and is free of layering and precipitation, good in viscosity maintenance and stable in electrical property.

The invention provides a mining method for in-situ modification of shale oil through cooperation of radio frequency heating and a fusible proppant. The nano-catalyst is packaged in a fusible plastic proppant, so that deep transportation of the nano-catalyst is realized; and after the plastic is melted, nanoparticles are released to catalyze kerogen pyrolysis, so that the radio frequency heating efficiency is improved, and a high flow guide channel is provided. The preparation method comprises the following specific steps: S1, preparing a fusible proppant composed of plastic and nanoparticles; s2, injecting the mixed propping agent into the reservoir through hydraulic fracturing; s3, improving the radio frequency heating efficiency by using the strong wave absorbing characteristic of the nanoparticles in the proppant; s4, melting the fusible proppant to release the nano-catalyst and hydrogen free radicals, and promoting kerogen in-situ modification; and S5, efficient recovery of the modified oil gas is achieved through a high flow guide channel formed through melting. The technology solves the problems that the migration of the nano-catalyst is limited, the electromagnetic wave absorption capacity of the shale reservoir is weak, and the percolation resistance of the modified oil gas is large, and provides a new way for the development of the shale oil with medium and low maturity.

The invention discloses a stirring device in a radio frequency heating environment, and belongs to the technical field of material treatment equipment. Comprising a base, a motor support is fixedly connected to the left side of the upper surface of the base, an adjustable-speed motor is fixedly connected to the lower surface of the motor support, a cylinder is fixedly connected to the right side of the upper surface of the base, and a transmission right wheel is rotationally connected to the upper surface of the cylinder. Fine materials can be effectively prevented from overflowing during high-speed stirring, material waste is reduced, external impurity pollution is isolated, and the requirements of food and other fields for material cleanliness are met; and on the other hand, the materials are kept in a moving state under the continuous action of the stirring blade group, so that the problem of local overheating easily occurring during radio frequency heating can be avoided, the materials are uniformly heated, part of the materials are prevented from going bad due to high temperature, and the consistency of the processing quality of the whole materials is ensured.

The application discloses a heat dissipation device, a heating disc and a thin film deposition equipment, and relates to the technical field of heat dissipation devices, wherein the heat dissipation device is used for dissipating heat of the heating disc, and comprises a heat conduction piece, at least one heat conduction pipe and a cooling assembly. The heat conduction piece is installed on a disc handle of the heating disc. One end of the heat conduction pipe is connected to the heat conduction piece, and the other end of the heat conduction pipe is connected to the cooling assembly. The cooling assembly is used for cooling the heat conduction pipe. The heat conduction pipe extends along the radial direction of the disc handle of the heating disc so that the cooling assembly is away from the heating disc. According to the application, heat is transferred to an area away from the heating disc through the heat conduction pipe and then dissipated, heat dissipation is avoided in a narrow space near a radio frequency heating rod inside the disc handle of the heating disc, heat dissipation position is transferred to an open area nearby, heat dissipation effect is improved, and the reliability of the heating disc is improved.

The invention relates to the technical field of therapeutic instruments, and provides a multi-protocol adaptive modular therapeutic instrument and a control method thereof, and the therapeutic instrument comprises a therapeutic instrument host and an external therapeutic accessory. The external treatment accessory comprises a gynecological probe and a body surface electrode plate; the therapeutic apparatus host comprises: a host housing; the main control module is arranged in the host shell; the body fat detection device comprises an energy generation and conversion module, an output interface module, a sensor module, a body fat detection module and a man-machine interaction assembly, and is characterized in that the energy generation and conversion module comprises an electric spectrum generator, a spectrum generator and a radio frequency generator, and an intelligent energy switching matrix is designed; various treatment functions such as low-frequency / intermediate-frequency electrical stimulation, phototherapy and radio-frequency heating are integrated into one host, and the electrotherapy pole piece and the phototherapy lamp piece which can be quickly replaced are combined, so that a user can seamlessly switch different treatment and diagnosis modes in the same treatment period without purchasing multiple devices or replacing the whole probe, and the utilization rate of the devices is improved.

This invention discloses a machine learning-based method for regulating the uniformity of radio frequency (RF) heating, belonging to the field of agricultural product processing technology. The method includes the following steps: S1, constructing an RF heating parameter database covering multiple application scenarios; S2, performing standardized preprocessing on the data and removing outliers; S3, constructing a machine learning model embedded with physical mechanisms, and selecting the optimal prediction model through hyperparameter optimization; S4, quantifying parameter priorities based on the optimal model and predicting the optimal operating range of the parameters; S5, selecting suitable agricultural materials and conducting corresponding scenario experiments for verification; S6, developing a visual human-computer interaction interface to achieve visualized output of parameter strategies. This invention solves the problems of low optimization efficiency and poor cross-scenario versatility of traditional methods, achieving intelligent optimization and precise regulation of RF heating uniformity, and can be widely applied to agricultural product RF processing scenarios.

The application discloses a kind of simulation production gas well wellbore hydrate radio frequency deblocking experimental device and method, including radio frequency transmitting system, gas injection system, liquid injection system, simulation wellbore deblocking system, data monitoring and processing system.The application can realize simulation gas well production working condition, by changing frequency current monitoring hydrate decomposition situation of jamming position, further obtain hydrate jamming block decomposition duration and gas-liquid flow under different radio frequency current, calculate the decomposition rate of wellbore hydrate, evaluate the deblocking effect of radio frequency heating under different gas-liquid ratio conditions.Simulation deblocking effect is good, and operability is strong.

The application relates to a circular-arc plate manufacturing device and a manufacturing process. The circular-arc plate 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; a fixed frame is arranged between the buckle cover and the device body and is hinged to the device body; a flexible plastic film is arranged on the fixed frame and above the mold; a positioning and fixing mechanism comprises a positioning assembly and a fixing assembly; the positioning assembly is arranged on the mold and is used for automatically aligning and positioning the center of a plate-shaped profile relative to the mold; and the fixing assembly is arranged between the mold and a vacuum pump device and is used for fixing the plate-shaped profile after alignment and positioning. The application has the effects of conveniently stably placing the plate-shaped profile on the circular-arc top of the mold, improving the positioning accuracy of the placement position of the plate-shaped profile, and reducing the positioning difficulty and the waste rate.

The invention discloses a chip system and method for automatically repairing irradiation damage. The chip system comprises a functional chip, a temperature sensor, a dielectric heat conduction layer, a radio frequency heater and a heat insulation substrate, the dielectric heat conduction layer serves as a bridging layer and is used for transmitting heat generated by the radio frequency heater to the functional chip, and meanwhile, the dielectric heat conduction layer also provides electric insulation for the functional chip; the functional chip is used as a target area for annealing execution, and an on-chip monitoring circuit is placed in the functional chip; the radio frequency heater utilizes a high-frequency alternating electromagnetic field to generate eddy current or periodic orientation of polar molecules and hysteresis loss, so that heat is generated to provide a heat source for annealing repair; the temperature sensor is used for monitoring the temperature of a target area for annealing execution in real time; the on-chip monitoring circuit realizes accurate dynamic control. The method has the characteristic that in-situ, real-time and localized precise annealing repair can be realized.

This invention relates to wireless synchronization of multi-channel radio frequency (RF) heating and drying equipment, specifically a multi-channel RF device for heating and drying applications, comprising a first channel and a second channel. More specifically, this invention relates to synchronizing multi-channel RF devices for heating and drying applications. More specifically, this invention relates to a solid-state cooking device and synchronization of the solid-state cooking device. The multi-channel RF device according to the invention is characterized in that: the second channel is configured to wirelessly receive a first RF signal transmitted by the first channel, extract the frequency of the first RF signal from the received first RF signal, generate a second RF signal based on the extracted frequency, and transmit the second RF signal into a chamber. By wirelessly synchronizing the RF channels, no RF hardware is required between multiple channels, and frequency planning for the second channel is eliminated. Wireless synchronization can significantly reduce the cost of multi-channel RF devices whose signal sources are physically separated.

The invention discloses an underground radio frequency heating coal seam in-situ conversion method, and particularly relates to the technical field of coal seam pyrolysis conversion, and the method comprises the following steps: injecting a preset fluid after well drilling to form a fracture network, and then injecting a preset first material to construct a filling structure with an electromagnetic response characteristic; chambering and filling a preset second material to form a structural area; arranging a radio frequency heating device and a temperature monitoring device to obtain temperature change data; periodically and dynamically calculating a temperature change gradient coefficient and a temperature stability deviation coefficient, generating a control parameter data combination through reasoning based on the two coefficients, and dynamically regulating and controlling a heating period and power output in an intermittent heating mode; according to the invention, by constructing the multidirectional permeation channel crack network and the differential electromagnetic response structure, the radio frequency energy coupling path is optimized, and the heating uniformity and conversion efficiency of the coal seam are improved; a dynamic coefficient reasoning mechanism based on temperature data is introduced, intelligent regulation and control of the intermittent heating period and power are achieved, and the safety and adaptability of the system are enhanced.

The application provides a radio frequency welding method and system of thermoplastic composite material, the radio frequency heating device includes a radio frequency generating module, a signal amplifier module and a radio frequency heating module, the radio frequency heating module includes a first electrode plate, a second electrode plate and a temperature sampling unit, the radio frequency generating module is used to determine the target frequency according to the current temperature, generate the first signal with the target frequency and send to the signal amplifier, the signal amplifier module is used to determine the target power according to the current temperature and the target temperature, adjust the first signal according to the target power, obtain the second signal, and send the second signal to the first electrode plate and the second electrode plate, the first electrode plate and the second electrode plate form an electromagnetic field based on the second signal, the frequency and power of the signal are adjusted in real time to uniformly and efficiently heat the heated part, so that the welding and / or shaping of the heated part are realized.

Wood kilns, electrode systems for wood kilns, and methods of using the systems for the radiofrequency (RF) drying and phytosanitizing of wood are provided. The electrode systems are based on a three-electrode design in which a central plate electrode having winged edges is disposed between a pair of ground plate electrodes. The winged edges of the central electrode improve the uniformity of heating during the phytosanitizing process, relative to a five-electrode parallel plate system, or a three-electrode parallel plate system having a conventional planar central plate electrode.