333 results about "Magnetic heating" patented technology

Magnetic nanoparticle compositions are provided which provide an inherent temperature regulator for use in magnetic heating, particularly for use in magnetic hyperthermia medical treatments. The composition includes magnetic nanoparticles having a Curie temperature of between 40 and 46° C., preferably about 42° C., and may further include a polymeric material and optionally a drug or radiosensitizing agent. Methods of hyperthermia treatment of a patient in need thereof are provided which include the steps of administering to the patient a composition comprising magnetic nanoparticles having a Curie temperature of between 40 and 46° C.; and exposing the magnetic nanoparticles in the patient to an alternating magnetic field effective to generate hysteresis heat in the nanoparticles.

The invention relates to the technical field of electric pressure cookers, in particular to an electromagnetic heating electric pressure cooker. The electromagnetic heating electric pressure cooker structurally comprises a shell, an inner pot and an outer pot, wherein a pressure switch and a control device are arranged at the bottom of the outer pot; an annular heating disk component and a sensor component are arranged between the inner pot and the outer pot; a through hole is formed in the middle of the heating disk component; the sensor component is mounted in the through hole; the heating disk component comprises an electromagnetic heating outer disk, a radiating fan, an electromagnetic heating wire coil, an electromagnetic coil, a plurality of magnetic strips, an electromagnetic heating disk cover and an anti-magnetic disk; the sensor component comprises a fixed frame, a spring arranged on the fixed frame in a sleeving manner, a sensor cap and a thermistor; and the thermistor is electrically connected with the control device. Compared with the prior art, the electric pressure cooker has the advantages of simple structure, high radiating performance, capacity of precisely controlling pressure and temperature and long service life, truly realizes application of an electromagnetic heating technology to the electric pressure cooker, and has a wide market prospect.

The invention discloses an electric pressure pot and an inner pot body of the electric pressure pot. The electric pressure pot includes an outer pot body, a supporting part, the inner pot body and anelectromagnetic heating disc; the supporting part is arranged in the outer pot body; the inner pot body is arranged in the outer pot body and supported on the supporting part, the outer bottom surfaceof the inner pot body is separated from the inner bottom surface of the outer pot body under the support of the supporting part, and the bottom wall of the inner pot body is flat; the electromagneticheating disc is used for heating the inner pot body and arranged between the inner pot body and the outer pot body. The electric pressure pot has the advantages of being low in thermal inertia, greatin controllability, high in production efficiency and the like.

The invention discloses a multifunctional knee joint rehabilitation instrument which comprises a bearing body comprising a work surface, a shank supporting part, a thigh supporting part, a knee support and a magnetic heating device, wherein the bearing body is provided with at least two guide rail structures which are distributed on the work surface or on the two sides of the work surface in parallel; the shank supporting part is obliquely arranged on the work surface, and the end of the shank supporting part can be movably arranged on the guide rail structures and connected with a power device A; the thigh supporting part and the shank supporting part form an inverted V-shaped structure, the thigh supporting part is provided with a non-retractable portion, a retractable portion and a power device B, one end of the non-retractable portion is hinged to the bearing body, one end of the retractable portion is hinged to the end, not connected with the power device A, of the shank supporting part, and the power device B is arranged between the non-retractable portion and the retractable portion; the knee support is used for supporting a knee joint and performing the function of stretching the knee joint, and the knee support is arranged on the connection portion of a large supporting part and a small supporting part; the magnetic heating device is arranged on the bearing body through a lifting device and located above the knee support. A magnetic heating therapeutic instrument and a knee joint moving assembly are integrated, so that the multifunctional knee joint rehabilitation instrument can achieve three therapeutic methods at the same time, and time is saved.

The invention discloses a method and a device for recycling and harmlessly treating waste lithium ion battery electrolyte. The method comprises the following steps: step I, adequately discharging a waste lithium ion battery, and collecting cells; step II, placing a reaction tank with a solvent onto a magnetic heating stirrer, and carrying out the water-bath heating at the temperature of 50 to 90 DEG C; and step III, soaking the cells in the solvent; step IV: dropwise adding little water into a reaction solution, simultaneously adding lithium phosphate, controlling the stirring speed to be at 200 to 800r/min in the reaction process, wherein the reaction time lasts for 0.5 to 6 hours, generating a solution containing lithium difluorophosphate, introducing inert gas into the reaction tank, generating hydrogen fluoride in the reaction process, absorbing hydrogen fluoride by virtue of an absorption device, and recycling a process product-lithium fluoride by virtue of filtering. By adopting the method and the device, electrolyte salt and an organic solvent resource can be effectively recycled, the resource configuration can be optimized, the reutilization of the resources can be promoted, and energy can be saved.

The invention discloses an electromagnetic heating cooking utensil, and belongs to the field of domestic appliances. The following technical scheme is provided aiming at the problems in the prior art that a pot is complicated in structure, inconvenient to assemble and disassemble, high in processing cost and the like. The heating cooking utensil comprises the pot body, a pot lid covering the pot body and a support base for supporting the pot body, and two symmetrically arranged supports are arranged at the two sides of the support base; the pot body comprises an outer pot provided with an electromagnetic coil, a rotary pot and a magnetic conductive inner pot, wherein the support base supports the outer pot, the rotary pot is arranged between the outer pot and the magnetic conductive inner pot and is clamped at the outer wall of the magnetic conductive inner pot, and the magnetic conductive inner pot is driven to conduct synchronous movement through the rotary pot; a driving device is connected with the rotary pot to drive the rotary pot to rotate. A convex rib of the rotary pot is clamped at the outer side of the magnetic conductive inner pot, and the convex rib and the magnetic conductive inner pot conduct synchronous movement; a rib strip plays a stirring role in a rotating process, along with the rotation of the magnetic conductive inner pot, food materials in the magnetic conductive inner pot are continuously overturned and stirred, and the purpose of quickly cooking the food materials is achieved.

The invention provides a magnetic refrigerator. The magnetic refrigerator comprises a rotating shaft, a plurality of heat exchanging pipelines which are arranged at the circumferential side of the rotating shaft, and at least two magnetic field generators, wherein all magnetic field generators are uniformly distributed on the rotating shaft. According to the magnetic refrigerator, the heat exchanging pipelines are independent from each other, so that each heat exchanging pipeline can be kept in an independent working state and does to interfere others, and fluid exchanging can also be avoided;in addition, two magnetic heating material beds are provided, so that fluid can pass through the magnetic material beds to be subjected to demagnetizing and cooling while flowing to a cold end, thusthe fluid with different temperature in the same heat exchanging pipeline can be prevented from mixing which leads to the decrease of refrigerating capacity, and the cold produced through a magnetic medium is fully utilized; a driving device is arranged and capable of supplying flowing power to the fluid in each heat exchanging pipeline, and moreover, the flowing direction of the fluid can be controlled; a complex fluid distributing method is avoided, and the system structure is simplified.

The invention discloses a transmission line lead anti-icing compound coil based on ferrite and a preparation method thereof, and relates to the fields of a magnetic heating material and safe operation of a power grid, in order to solve the problems of low heat productivity, high cost, large load and fixed form of the anti-icing material of a transmission conductor. The product is prepared from ferrite magnetic material powder and polymer base stock. The method comprises the following steps: weighing the ferrite magnetic material powder, the polymer base stock, a plasticizer, a lubricating agent and an antioxidant; and extruding and drying by an extruder after stirring, so as to obtain the compound coil of which the thickness is 2-10mm, wherein the loss at normal temperature is less than 5 W/kg, the saturation flux density when the temperature is lower than 0 DEG C can be up to 0.85T, and the single calorific value at -5 DEG C to 0 DEG C can be up to 32 W/kg under an alternating magnetic field of 50Hz. Thus, the anti-icing compound coil can be applied to the fields of the magnetic heating material and safe operation of the power grid.

The invention relates to a spinning method for micro-nano fibers with a twisted spiral structure in the technical field of electrostatic spinning, in particular to a method for preparing micro-nano fibers with a twisted spiral structure by adopting electrostatic spinning technology. The method comprises the following steps: mixing polyvinylpyrrolidone, inorganic compound and anhydrous ethanol according to a weight ratio of 4:0.2:15-18, in a magnetic heating stirrer under the condition of normal temperature, mixing and stirring the mixture for 1 to 3 hours, and keeping the mixture stand for 1 hour to obtain precursor spinning solution; embedding a metal needle into a hollow needle of a common spinning nozzle to manufacture a sub-conducting core electrode; and then filling the prepared precursor spinning solution into a spinning device, placing a glass slide on a lead foil collector, keeping the distance between the nozzle needle and the collector between 10 and 20 centimeters, switching on a direct current voltage of 10 to 20 kilovolts for 10 to 30 seconds, then switching off a high-voltage power supply, and collecting a product on the glass slide. The equipment structure is novel, the preparation process is simple, the principle is reliable, the quality and the structure of the finished product are good, the production efficiency is high, and the popularization and application properties are strong.

A magnetothermal nanometer seed for thermotherapy to tumor is prepared from nanometre magentic particles, surfactant and purified water in Wt ratio of 1:(0-0.05):(0.5-20) through fully mixing to obtain a colloid or suspension, washing with purified water to remove excessive surfactant, and adding aqueous solution, to obtain the injection, or drying to obtain the powder.

A method for making a torque converter includes the steps of forming a blade having a tab extending outward from the blade and along a portion of a length of the blade. A recess is formed in the housing sized to receive the first tab. The recess defines an edge adjacent the tab and extending along the tab. The tab is inserted within the recess to form a housing assembly. A brazing material is provided between the tab and the housing. The assembly is positioned within a magnetic heating machine and magnetically heated

Magnetic heating device includes energy feeding elements, control unit and at least two magnetic field generators, where each magnetic field generator has two free ends. All free ends of the magnetic field generators define a plane and the control unit is adapted to control the feeding elements to apply magnetic field generating energy to the magnetic field generators to generate alternating magnetic fields, wherein a ferromagnetic material positioned in a space defined above the plane is heated. The generated magnetic fields being such that the magnetic field through one of the free ends has an opposed direction as compared to the magnetic fields through the other free ends.

The invention relates to a solvothermal preparation method of a 3D flower-shaped lithium iron phosphate positive electrode material assembled by two dimensional nanosheets, and belongs to the preparation method of the positive electrode material lithium iron phosphate for a power lithium ion battery. The method comprises the steps: firstly, adding an iron source and a phosphorus source to a reactor, carrying out magnetic heating and stirring to obtain a deep green suspension, then adding a lithium source and a complexing agent, continuously stirring for several hours, then transferring the reactant to a hydrothermal kettle, at the same time, adding a solvent having a certain volume proportion and having surfactant properties, carrying out a heat preservation reaction, after the reaction isfinished, cooling to room temperature, carrying out centrifugal washing, and carrying out vacuum drying. Two mixed solvents are adopted in the preparation, and one is the solvent having the surfactant properties; according to the 3D flower-shaped lithium iron phosphate assembled by the nanosheets and having a porous structure, on one hand, complete wetting of an electrolyte and a positive electrode material is facilitated, on the other hand, the lithium ion migration diffusion path is shortened, the ion migration rate under battery multiplying power discharge is improved, the experiment process is simple, and the positive electrode material LiFePO4 with good performance can be prepared.

The present invention generally relates to systems and methods for releasing a compound from an article using an external trigger, for example, magnetic fields. One aspect of the invention is generally directed to an article containing a magnetically-susceptible material. Exposure of the magnetically-susceptible material to a magnetic field, such as an oscillating magnetic field, may cause the magnetically-susceptible material to increase in temperature. This increase in temperature may be used, in some embodiments, to cause the release of a drug or other releasable material from the article. For instance, the drug may be contained in a heat-sensitive material in thermal communication with the magnetically-susceptible material, or the drug may be contained within an enclosure that is isolated, at least in part, by a heat-sensitive material in thermal communication with the magnetically-susceptible material. Other aspects of the invention are directed to systems and methods of making or using such articles, e.g., by implanting the article within a subject, methods of treatment involving such articles, kits including such articles, or the like.

The invention discloses a device for testing the specific heat capacity of a solution through heating by using an approach method, and a testing method and belongs to the technical field of specific heat capacity testing. The device comprises an inner tube solution heating system, an outer tube automatic approach heating system, an outer tube vacuum thermal-insulating system and a data acquisitionsystem, wherein a solution is continuously heated through a built-in heating rod; a magnetic heating stirrer is powered on; and an inner tube solution is stirred by using a magnetic stirrer, and thena uniform temperature field is formed inside an inner tube. On and off of an outer tube heating circuit is controlled by a relay, then the temperature of an outer tube approaches to the temperature of the solution constantly, and heat exchange of the solution with the environment in a heat conduction manner is prevented. Meanwhile together with measures such as vacuuming and heat-preservation layers, heat of the solution is not radiated to the environment, and the heat of the heating rod can be completely adopted to heat the inner tube solution heating system. By virtue of an equation Q=Pt=cmdetalT, the specific heat capacity of the solution is tested, and in the equation, P is the heating power of a heating body and is directly tested by using a power meter. The device is simple in structure, convenient to operate, capable of automatically controlling the temperature of the outer tube, and high in control precision together with a PID (Proportion Integration Differentiation) algorithm.

The invention belongs to the technical field of chemical reaction devices, and particularly discloses a chemical parallel reaction device. The device comprises a magnetic heating stirrer, wherein a heating column is placed on a heating panel of the magnetic heating stirrer, and a sealing cover is connected at the upper end of the heating column in a sealing way; wherein a condensate pipe is arranged at the bottom of the heating column in a penetrating way, a thermocouple containing hole is formed in the middle lower part of the heating column, and a plurality of reactor containing holes are formed in the upper part of the heating column; a pressure gauge is arranged at the top of the sealing cover, and an air inlet valve and an air outlet valve are arranged on the side part of the sealing cover; and a thermocouple of the magnetic heating stirrer is placed in the thermocouple containing hole. The chemical parallel reaction device disclosed by the invention is easy to operate, all reaction can be tested simultaneously, heating and stirring can be carried out in each reaction, and each reaction is ensured to carried out independently under the conditions of same temperature, pressure and stirring speed, so that the screening of test conditions and the optimization of reaction conditions are accelerated.

The invention provides a cupping device with an electric heating function, a pyroelectric probe and a traditional Chinese medicine therapy instrument. The cupping device comprises a cup body made of metal materials and at least one heating set which is fixed to the bottom of the cup body or embedded into the cup body, wherein the at least one heating set generates heat through electricity supply energy, and the heat is transmitted to the cup body in a heat conduction mode to heat the cup body. Compared with magnetic heating and infrared heating, the cupping device and the pyroelectric probe adopt electric heating so as to have good controllability and high efficiency, no excess redundant component exists, the fault rate is low, and the maintainability is good.

The invention relates to the technical field of lithium-ion batteries, in particular to a preparation method of a negative electrode material zinc ferrite. The preparation method of the negative electrode material zinc ferrite comprises the following steps of: adding a certain amount of iron source, zinc source and polyethylene glycol to deionized water, carrying out ultrasound, transferring a reaction liquid to a magnetic heating stirrer for stirring and heating; adding a weak alkali or strong alkali and weak acid salt to the reaction liquid and adjusting the pH of the solution; after reaction is ended, transferring the reaction liquid to an oven for drying and carrying out primary calcination and grinding; and putting the ground solid into a certain concentration of strong alkali solution, carrying out stirring, filtering and washing and carrying out calcination on the obtained solid product again to obtain the negative electrode material zinc ferrite for the lithium-ion battery. The nanostructure zinc ferrite prepared by the method has a stable lithium-intercalated potential platform (about 0.9v); the lithium precipitation phenomenon is not generated; the safety of the battery is greatly improved; and meanwhile, the material has the advantages of being nontoxic, pollution-free, high in safety performance, wide in raw material source and the like.

The invention relates to an atom magnetometer and a magnetic field imaging system. First wavelength laser and second wavelength laser are formed through a laser light source and a frequency doubling module. The optical power of the first wavelength laser is adjusted through an optical attenuation module, non-magneto-optical heating of an atomic gas chamber is achieved, and the attenuation amount is adjusted for temperature control. And the second wavelength laser enters the atomic gas chamber to realize magnetic field detection. Therefore, an atom magnetometer can realize non-magnetic heatingand atom pumping detection without coupling of heating laser and pumping laser, and the complexity of an optical path is reduced. And one laser light source in a magnetic field imaging system is connected with a plurality of atom magnetometer probes. Through the position information of the plurality of atom magnetometer probes and the detected magnetic field information, accurate positioning of the magnetic field position can be realized so as to realize multidimensional magnetic field space reconstruction.

The invention relates to a sitting fumigation treatment device for a gynecology, and belongs to the technical field of medical appliances. The fitting fumigation treatment device for the gynecology department comprises a machine body, wherein a fixed seat frame is arranged on the upper side of the machine body, a folding chair back is arranged on the upper side of the fixed seat frame, a fumigation seat plate is arranged on the right side of the fixed seat frame, a steam generator is arranged in the machine body, a medicinal material net box is arranged in the steam generator, a water inlet tank is arranged on the left side of the machine body, an electromagnetic heater is arranged at the lower side of the steam generator, a steam guide pipe is arranged on the right side of the steam generator, a sealed steam tank is arranged on the right side of the steam guide pipe, a steam guide pipe is arranged on the upper side of the sealed steam tank, a fumigation chamber is arranged on the upper side of the steam guide pipe, a drying ventilator is arranged on the right side of the fumigation chamber, a liquid collecting box is arranged on the lower side of the drying ventilator, a fumigation guide plate is arranged in the fumigation chamber, and a fumigation rotating disc is arranged on the upper side of the fumigation guide plate. The device has the advantages of complete functions andconvenient use, and is simple and convenient to operate and obvious in treatment effect when the lower body inflammation of a gynecological patient is treated, and the working difficulty of medical personnel is greatly reduced.

The invention discloses a novel electromagnetic heated food processing device, which comprises a base, a pot body and an electric control system, wherein the pot body is arranged on the base; the device further comprises at least one air blower, wherein the air blower is arranged above the pot body, and an air port of the air blower is over against the pot body; and the pot body comprises a pot body inner wall and a pot body outer wall which are formed integrally, a hollow interlayer structure is formed between the pot body inner wall and the pot body outer wall, and an electromagnetic coil for heating the pot body inner wall is wound on the outer side of the pot body inner wall. The novel electromagnetic heated food processing device has the advantages that: 1, by setting the air blower and using a method of blowing air, water vapor on the surface layer of foodstuff can be quickly blown away when the foodstuff is turned over, 1.5 to 2.8 kilograms of moisture can be drained in one minute, meanwhile, the water vapor is prevented from returning to the pot body, and the processing quality of the foodstuff is ensured; 2, the device is convenient and easy to operate, accurate in control and high in automation degree, reduces potential safety hazards, and is energy-saving and environment-friendly; and 3, manpower and site are saved, and equipment such as a boiler, pipelines and other equipment are not needed.

A chip type high-precision triaxial vector atom magnetometer comprises a light path system, a coil system, an atom air chamber non-magnetic heating system and a triaxial magnetic field closed-loop control system. An optical fiber is used for guiding laser, and under the action of a collimating lens, a polarizer and a 1/4 wave plate, circular polarization laser is formed and used for polarizing alkali metal atoms. Laser penetrating through an atomic air chamber are coupled and detected through a coupling lens and a multimode optical fiber to obtain triaxial magnetic field information; the coilsystem consists of three groups of orthogonal magnetic field coils and is used for generating a compensation magnetic field; the atom air chamber non-magnetic heating system comprises an alkali metalatom air chamber, a non-magnetic heating sheet and a thermistor; the triaxial magnetic field closed-loop control system adopts a feedback compensation mode, generates a magnetic field through the coilsystem to counteract an external magnetic field, controls the atomic system to be in a zero magnetic field, and realizes triaxial magnetic field closed-loop output. Compared with the prior art, triaxial simultaneous measurement of the magnetic field can be realized, the measuring range is large, the structure is compact, and chip and engineering are easy to realize.

The invention discloses an electromagnetically heated cooker which comprises a cooker body and further comprises a closed circuit unit, an electricity storage unit and an electrical unit. By adding the closed circuit unit, the electricity storage unit and the electrical unit, the electromagnetically heated cooker utilizes the closed circuit unit to absorb leaked electromagnetic radiation, the healthy body of a user is protected, and the electromagnetic radiation influence is prevented. The electromagnetically heated cooker can also convert the absorbed electromagnetic radiation into electric energy to be stored by the electricity storage unit, power is provided for the electrical unit on the cooker, and the electromagnetically heated cooker saves energy, is environmentally friendly and conforms to a green life concept. In addition, the cooker is only a heating vessel on longer and is the electromagnetically heated cooker having an electricity usage function.