1899results about How to "Easy to control temperature" patented technology

The invention discloses a diffuse reflection type intelligent electric pressure cooker. The diffuse reflection type intelligent electric pressure cooker structurally comprises an electric pressure cooker body, a cooker cover, an inner container, a control panel and an alarming device, wherein the cooker cover is arranged at the top part of the electric pressure cooker body; a lifting device is arranged in the middle part of the cooker cover; the control panel is arranged at the left part of the electric pressure cooker body; a heating tray is arranged at the bottom part of the interior of theelectric pressure cooker body; the inner container is arranged in the electric pressure cooker body; diffuse reflection type photoelectric sensors are distributed around the bottom part of the inner side of the electric pressure cooker body; air cylinders are distributed at the top parts of the diffuse reflection type photoelectric sensors; a horizontal sensor is arranged at the top part of each air cylinder; the alarming device is arranged at the outer side of the electric pressure cooker body. The diffuse reflection type intelligent electric pressure cooker has the advantages that the size of the inner container can be sensed via diffuse reflection at high efficiency, so as to conveniently control the heating temperature, and achieve more intelligent effect; the inclining degree of the inner container can be monitored at high efficiency, and the alarming device is automatically started to produce buzz sound; the operation is intelligent, the efficiency is high, and the implementing is easy.

The invention relates to an experimental method and a device for simulating the process that microcosmic remaining oil is extracted in a microcosmic simulation model under the condition of oil deposit high temperature and high pressure, researching feasibility of microorganism oil displacement technology in improving enhanced oil recovery after water drive, and carrying out visualized microcosmic oil displacement experimental research under the high temperature and high pressure experimental conditions, in particular to a high temperature and high pressure visual device for simulating microorganism oil displacement and a simulating method thereof. The device comprises a model clamp clamping a microcosmic visual model, a displacement system, a back pressure system, an annular pressure system, a pressure monitoring system, a temperature control system and an image collecting system. According to the device, temperature and pressure can be controlled easily, used space is small, safety performance is excellent, operation is simple, action mechanism of microorganism and petroleum hydrocarbon and starting mechanism of the microorganism on the remaining oil can be conveniently observed in a visualized condition, and the device has important significance on wide application and popularization of microcosmic experiments in oil industries.

The invention relates to a method and a device for the quick pyrolysis of solid heat carriers; the device comprises a circulating fluidized bed combustor, a cyclone separator, an aerodynamic hot ash distributor, a pyrolysis chamber and a differential bed material return device; fuel is burnt in the circulating fluidized bed combustor, the high-temperature circulation ash of flue gas collected by the cyclone separator is divided into two parts by the hot ash distributor aerodynamically controlled, one part enters the pyrolysis chamber of a moving bed as the solid heat carrier to supply heat for flue pyrolysis, the other part does not enter the pyrolysis chamber but returns to the combustor, together with the semicoke and circulation ash discharged from the bottom of the pyrolysis chamber through the differential bed material return device. The method and the device for the quick pyrolysis of solid heat carrier provided by the invention can distribute the high-temperature circulation ash between combustion and pyrolysis loops stably and reliably, with controllable temperature of the pyrolysis chamber, strengthen the balance capacity between combustion and pyrolysis by virtue of a hot ash cooler, have good adaptability of the flue, and can be used for the pyrolysis of coal, biomass and other carbonaceous refuses.

The invention relates to a cooling and drying synchronizing method for a rotary hearth furnace. The method specifically includes the following steps that firstly, red pellets of the rotary hearth furnace uniformly fall on a lower-layer chain plate at a feeding end A2 through a first guiding chute, and meanwhile green pellets of the rotary hearth furnace uniformly fall on an upper-layer chain plate at a feeding end B1 through a first distributor; secondly, it is guaranteed that the rotation direction of the upper-layer chain plate and the rotation direction of the lower-layer chain plate are opposite by adjusting the rotating speed of both the upper-layer chain plate and lower-layer chain plate; thirdly, cold air ascends and penetrates through the red pellets on the lower-layer chain plate so as to cool the red pellets, and meanwhile the temperature of the cold air increases, so that the cold air is changed into pre-heated air; fourthly, the pre-heated air continues to ascend and penetrates through the green pellets on the upper-layer chain plate so as to dry and pre-heat the green pellets, and meanwhile the temperature of the pre-heated air decreases, so that the pre-heated air is changed into hot air containing certain heat; and finally, the hot air is pumped out, enters a dust falling room, then enters a dust removing room from the dust falling room and is transferred into an air pre-heating system in the rotary hearth furnace through the dust removing room for use.

The invention discloses a simulating device for fluid flow safety evaluation of oil-gas pipelines. The device comprises a multiphase flow circulating system, a separating system, a fluid injecting system and a waste gas recovery system. The device disclosed by the invention emerges on the basis of fully considering the current fluid flow safety hotspot problem and is capable of simulating a low-temperature high-pressure environment to carry out the fluid flow safety evaluation of the oil-gas pipelines, wherein the evaluation content comprises oil-gas pipeline blockage caused by problems such as hydrate and wax deposit and the oil-gas transmission safety problem caused by pipeline corrosion. The device disclosed by the invention is not limited to the evaluation content and can also be used for exploring the research on the evaluation of multi-phase fluid flow regularity, hydrate inhibitor performance and the like. The device disclosed by the invention has the characteristics of reasonable structure, ingenious design, operational flexibility, accuracy in measurement and the like.

The invention relates to a method for processing the high-speed deformation on the surface of metallic material with nano structure, and particularly provides a method for realizing high-speed processing of the organization structure of ultra-fine grains. On the condition of room temperature or low temperature, by adopting a mechanical treatment method with high-speed plastic deformation, the nanoscale bulky crystalline grain structure on the surface layer of the metallic material is refined as equiaxial submicron crystalline grain or nano crystalline grain to form an ultra-fine organization structure of the crystalline grain on the surface layer of the metallic material. With the increase of the depth to the processing surface, the size of microstructure has the change of gradient, increasing from nanoscale and submicron size to micron size. Compared with the existing processing method for forming a surface ultra-fine crystalline grain structure, the high-speed processing method of the invention greatly reduces the roughness of the surface of the processed metallic material and increases the thickness of a deformation layer, and has simple processing method and high working efficiency.

A flue gas desulphurization denitration method adopting two activated-carbon adsorption columns (1, 2) in series connection and comprising a flue gas temperature control apparatus and a device therefor are provided. The method includes I) a step of flue gas temperature control and II) a step of desulphurization and denitration, wherein the step of flue gas temperature control comprises (1) a step of subjecting flue gas to first time of cooling by feeding cold air into a flue conveying high-temperature flue gas to activated-carbon adsorption columns from a cold-air inlet at an upstream position (P1) of the flue, (2) spraying cooling water or cold water mist into the flue gas in the flue from a process water spray nozzle at the downstream position (P2) of the position (P1) from which the cold air is fed, and allowing the flue gas to flow along the flue to the adsorption columns, and (3) feeding diluted ammonia gas into the flue gas in the adsorption columns after the flue gas is fed into gas feeding chambers of the adsorption columns. The temperature of the flue gas fed into the adsorption columns is controlled by mixing with the cold air and spraying water. The two activated-carbon adsorption columns (1, 2) in series connection are adopted to significantly increase the denitration efficiency of the device.

The invention discloses a preparation method of an efficient polyethyleneimine modified cellulose-based heavy metal adsorbent shown by a formula (I), belonging to the technical field of high-molecular function modification and synthesis of a natural material. By adopting cellulose as a framework, benzoyl peroxide (BPO) as an initiator, a mixture of water and acetone as a solvent and glycidyl methacrylate (GMA) shown by a formula (III) as a monomer, the method comprises the following steps of: performing a free radical-initiated graft copolymerization reaction on the surface of microcrystalline cellulose shown by a formula (II); performing amination on a graft product shown by a formula (IV) by use of graft polyethyleneimine (PEI) shown by a formula (V); and washing and drying the product to obtain a powdery solid product, wherein the reaction is easy to operate, and the conditions are mild. The heavy metal adsorbent prepared by the preparation method has the advantages of excellent adsorption property, large adsorption capacity and fast adsorption, can be regenerated and recycled, and has broad application prospects in the water treatment fields such as control of heavy metal industrial pollutants and the like.

A nanoimprint system according to one embodiment of the present invention is a system for performing a pattern transfer onto an object to be molded by pressing a mold against the object to be molded using a head, characterized in that the head has a flat pressing surface during pressing the mold and is slid onto the mold while pressing the mold.

The objective of the present invention is to provide a hot water-centered hot water and heating combination boiler, in which heat exchange for a hot water supply is performed in a main heat exchanger and heat exchange for a heating water supply is performed in an auxiliary heat exchanger so that the hot water supply can be accelerated, energy can be saved, and the temperature of the hot water can be controlled with ease. To achieve the abovementioned objective, the boiler of the present invention includes: a cold water inflow tube through which cold water flows in; a main heat exchanger which heats the cold water flowing in through the cold water inflow tube by using the combustion heat of a burner; a hot water discharge tube which discharges the hot water heated in the main heat exchanger; an auxiliary heat exchanger which supplies heating water during a heating mode, in which heating consumption place, and causes heat exchange to occur between the heated water in the main heat exchanger and the lowered temperature returning water, in which the heating consumption place; and a control part which controls the combustion of the burner during a hot water mode and heating mode.

The invention relates to a nanometer molten binary nitrate heat-transfer heat-storage medium and a preparation method thereof and belongs to the field of solar photo-thermal electricity generation. The nanometer molten binary nitrate heat-transfer heat-storage medium is characterized in that nano-particles are dispersed in a KNO3-NaNO3 and KNO3-NaNO2 solid-liquid phase-change molten binary nitrate system at a high temperature so that the nanometer molten binary nitrate heat-transfer heat-storage medium is compounded, and the nano-particles comprise SiO2, ZnO, Al2O3, TiO2, CaO and / or MgO nanoparticles. The nanometer molten binary nitrate heat-transfer heat-storage medium solves the problem that the existing nanometer molten binary nitrate system has a low heat conductivity coefficient, poor heat stability and a narrow use temperature scope and can be widely used in the technical field of solar photo-thermal electricity generation.

The invention discloses a preparation device and application of a silicon carbide single crystal, and belongs to the field of preparation of single crystals. The preparation device of the silicon carbide single crystal comprises a crucible, a charging basket and a rotary lifting unit, the crucible comprises an upper crucible and a lower crucible; wherein the charging bucket comprises a bucket bodyand an opening part, the bucket body is arranged in the lower crucible, the opening part is rotatably connected with the upper crucible, and the charging bucket and the upper crucible form a growth cavity for preparing the silicon carbide single crystal by a physical vapor transport method; an isolation cavity is formed between the charging bucket and the lower crucible; the rotary lifting unit drives the charging bucket to rotate and lift relative to seed crystals. According to the preparation device, the charging bucket is accurately and stably located in the center of the crucible servingas a heating body in the rotary lifting process, the interior of the charging bucket is heated evenly due to the consistent temperature of the sections of the charging bucket in all directions, then the defects that carbon inclusions are generated in the prepared silicon carbide single crystal and the like are overcome, and the quality of the prepared silicon carbide single crystal is improved.

The invention relates to a heat preservation and insulation flooring. The flooring is made up of floor board, heat preservation layer, leveling layer, and facing layer. Its feature is that: the heating pipe and phase change pipe is set on the heat preservation layer. The invention supplies a new-type heat preservation and insulation flooring the heating pipe would be used for solar hot water, ground heat or other hot water heating, the phase change pipe would be used to store heat and adjust the room temperature.

The invention relates to an air spring environment simulation fatigue testing machine, comprising a frame, a box body component, a mechanical transmission device, a counterweight device, a hoisting disc and a transmission shaft; the box body component consists of a box body and a box door with heat preservation function; the mechanical transmission device is arranged on the frame and is positioned outside the box body; the motor of the mechanical transmission device is connected with a rotation disc by a reducer; the swing shaft which is arranged on the rotation disc is connected with a sliding block which is arranged in the guide trough of a swing rod; one end of the swing rod is articulated on the supporter of the swing rod; the transmission shaft with a tray is arranged inside the box body; the transmission shaft passes through the box body and is articulated with the other end of the swing rod; the hoisting disc is connected inside the box body and is corresponding to the transmission shaft; the counterweight bracket of the counterweight device is fixed on the top inside the box body; two disc bodies are coaxially arranged on the counterweight bracket; two ends of the steel cables which are arranged in two disc body ring-shaped trough are respectively connected on the counterweight block and the transmission shaft. The air spring environment simulation fatigue testing machine has reasonable structure, does not affect the actuating unit and the transmission mechanism of the testing machine or the service life of the transmission mechanism, and has the advantages of convenient operation and low energy loss.

The invention discloses a temperature control-based dry-wet circulating unsaturated soil triaxial instrument and belongs to the technical field of geotechnical engineering test instruments. The triaxial instrument comprises a triaxial instrument main body, a temperature regulating system, a pressure regulating system, a humidity regulating system and a data analyzing system. The temperature regulating system and the humidity regulating system control the temperature and humidity in a test environment. The pressure regulating system controls the axial pressure and the confining pressure and cooperates with a gas-supplying assembly to ensure the stability of the pressure chamber confining pressure. The triaxial instrument realizes control of the environment temperature. Through control of the environment humidity of the triaxial compression test, the triaxial instrument can realize a triaxial shearing test of unsaturated soil dry-wet circulating. The test environment temperature and humidity are controlled simultaneously and the mechanical evolution characteristics of unsaturated soil under coupling action of the temperature and humidity are researched. Through a senor and a data acquisition device, the test data can be measured and acquired and then be subjected to intelligent processing so that the automation of measurement and acquisition is realized.

The invention relates to a fracturing fluid system, in particular to an environment-friendly and bio-available green fracturing fluid system, which contains the following components in parts by weight: 0.30-0.55% of vegetable gum polymer, 10-20ppm of biofungicide, a cross-linking agent (1-1.5% of borax water solution, and cross-linking ratio: 100:5 to 100:10), a pH value adjusting agent, 0.018-0.025% of biological discharge aiding agent, 5-30ppm of enzyme breaker, 1-3% of clay stabilizer, 0.25-0.3% of fracturing optimizer, and the balance of water. The fracturing fluid system furthest uses non-toxic and innoxious natural products to replace toxic and noxious chemical additive, thus achieving environment friendliness; and working fluid which is injected into the formation and returned to the ground is biodegradable and bio-repairable, and flowback liquid can be recycled, thus saving energy and reducing emission. The fracturing fluid system is a more ideal fracturing fluid system.

The invention relates to a method for refining iron and removing phosphorus from complex refractory high-phosphorus iron ore, in particular to a method for sorting high-phosphorus iron ore by combining microwave reduction roasting and low intensity magnetic separation, and belongs to the technical field of mineral processing, particularly iron ore beneficiation. The method comprises the following steps: crushing refractory high-phosphorus iron ore used as raw material into granules with granularity of less than 2mm; mixing the crushed raw ore with a fluxing agent and a reducing agent in a certain proportion; transferring the obtained mixed material into a microwave reaction furnace for reduction roasting; and carrying out water-quenching, cooling, ball-milling and wet-magnetic-separating on the obtained roasted ore to finally obtain iron ore concentrate. In the method, the ore is reduced by utilizing a microwave roasting technology, wherein microwave reduction roasting time is short, and the temperature of the ore is raised quickly; and meanwhile the fluxing agent is added so as to promote gangue softening and improve refractory ore structure together with microwave roasting reaction. By utilizing the method for sorting the high-phosphorus iron ore, the iron ore concentrate with grade of more than 58.39% can be obtained, and phosphorus removal rate reaches over 70.44%, thus a new technique is provided for sorting the high-phosphorus iron ore.

The invention provides an air conditioner, a cooling system of the air conditioner and a cooling method. The cooling system comprises a condenser (1), an evaporator (5), a compressor (6) and a frequency converter (2), wherein the condenser (1), the evaporator (5) and the compressor (6) are connected in sequence, and construct a loop; a refrigerant flow path is formed in the condenser (1); and a cooling flow path is formed in the frequency converter (2); and the cooling flow path is communicated with the refrigerant flow path in the condenser (1) through a liquid taking flow path, and is communicated with the cold evaporator (5) through a liquid return flow path. The cooling system provided by the invention is simple in structure, and has small influence on the overall structure of a unit; a refrigerant is prevented from being scaled and corroded in a pipeline of the cooling system; a refrigerant in the condenser is used for cooling the frequency converter, so that the influence of the external environment is small, and the cooling effect is stable and reliable; and the cooling of the frequency converter and the refrigerating function of the air conditioner are completed at the same time in one cooling system, so that normal running of the air conditioner is effectively ensured.

The invention relates to infrared radiation measurement and calibration technology field and especially relates to a high-precision surface source blackbody radiation source device capable of being applied under a vacuum low temperature condition. The device mainly comprises a blackbody radiation source main body module, a vacuum cabin, a control cable in the cabin, a through-wall air plug, a control cable outside the cabin, a refrigeration copper braid and a controller module. The blackbody radiation source main body module is placed in the vacuum cabin. The blackbody radiation source main body module is connected to an inner wall of the vacuum cabin through the refrigeration copper braid. The blackbody radiation source main body module is connected to the controller module successively through the control cable in the cabin, the through-wall air plug and the control cable outside the cabin. The device has advantages that a problem that effective emissivity, temperature uniformity and a wide temperature range can not be simultaneously satisfied in the prior art is effectively solved; and an application basis is provided for calibrating and testing infrared detection equipment and establishing a low temperature target performance test system under a vacuum environment.

The invention discloses a device for nondestructively disassembling and treating waste circuit boards and a method thereof. The device comprises six parts of a conveying unit, a heating and heat insulation unit, a loading and unloading unit, a vibration unit, a recovery unit and a smoke removing unit. The conveying unit conveys the circuit boards; the heating and heat insulation unit melts soldering tin on the circuit boards; the loading and unloading unit realizes rapid loading and automatic unloading of the circuit boards; the vibration unit is used for separating the soldering tin and components from the circuit boards; the recovery unit is used for realizing separation and recovery of the soldering tin and the components; and the smoke removing unit is used for filtering flue gas dust in waste gas and odor produced in the operation of the device. The device and the method thereof have the advantages of continuous operation, high disassembling efficiency, high heating speed, controllable temperature, energy saving, high nondestructive disassembling rate of the components, small volume, light weight, simple installation, low power, high automation degree and simple processing operation.

The invention discloses a heat radiator with a composite structure, which relates to the field of electronic products heat radiators. A plurality of long fins made from expandable graphite composite materials and a plurality of short fins made from flexible graphite materials are staggered in a clamping device, wherein the long fins align with one ends of the short fins, the aligned end face is provided with a heat-conducting layer which is made of flexible graphite material or metal materials and has the thickness of 0.15-0.2 mm. The invention fully takes the advantage of the high heat conductivity of the flexible graphite plate material in the plane direction, optimizes a heat-conducting structure when the high heat conductivity of the flexible graphite plate material and the high heat-tolerance performance of the expandable graphite composite material are matched, forms a favorable three-dimensional heat dissipation effect and has light weight, little heat resistance, favorable contact, controllable temperature, short production cycle and low production cost. The invention also relates to a preparation method of the heat radiator.

The invention provides an electrolytic cell with a controllable temperature used for electrochemical measurement. The electrolytic cell comprises an upper cover (1), a sleeve top board (2), a electrolytic cell container (3), a circulating water sleeve pipe (4), a water inlet (5), a sleeve bottom board (2), a fixed support plate (7), a working electrode (8), a gasket (9), a fastening bolt (10), a sealing ring (11), container legs (12), a water outlet (13), a platinum electrode (14), a rubber plug (15), a salt bridge (16), a reference electrode (17), etc. Only need to align a sample to a central hole of the sleeve bottom board and screw a nut to make the sample contacted and sealed with the sealing ring, with no need of welding and sealing the sample, the electrolytic cell can directly measure electrochemical properties of the samples, and is convenient for replacing the sample. Temperature of the electrolyte can be controlled by externally connecting circulating water, so that interference electrochemical signals caused by eddy current produced by electric heating can be prevented. The whole container is made of corrosion resistant organic glass members; and the connecting parts are adhered with organic glass adhesives, so that the electrolytic cell is convenient in preparation and has long service life.

The invention relates to a ball grinder available for the solid state reaction of powder, which mainly comprises a ball grinding cylinder, an electromotor, a driving device, a grinding ball and a material inlet and outlet, wherein the horizontal type ball grinding cylinder is fixedly supported on a bracket; a jar is internally provided with the girding ball; the center of the ball grinding cylinder is provided with a rotatable main shaft; the main shaft is driven by the electromotor through the driving device to rotate; the main shaft is provided with a blade, wherein the rotating speed of the blade is 300-2000 r / min; the mechanical energy is transmitted to the grinding ball through the beating of the blade, so that the grinding ball can irregularly move with high speed; the bottom of theball grinding cylinder is in the shape of gradient with 0-30 degrees from the two ends to the center; the jar body of the ball grinding cylinder is provided with a cooling sleeve and an inlet and an outlet of cooling medium; and the jar body of the ball grinding cylinder is provided with an air exhausting opening and an air inlet. The ball grinder can lead the grinding ball to generate higher mechanical energy to provide high energy for inducing the solid state reaction among materials, thereby smashing, grinding and dispersing the materials and directly reacting to generate nanometer composite oxide.

The invention relates to a two-section rotation oxygen-enrichment external heating oxidation technology and device for dry-method and semi-dry method desulfurized ash. A two-section type rotation oxidation kiln is adopted, oxygen is introduced into the kiln and heating is implemented by adopting an external heating furnace, so that the oxidizing process for converting CaSO3 in the desulfurized ash into CaSO4 is completed. Compared with the prior art, the technology and the device have the benefits as follows: (1), during the oxidation of the desulfurized ash in the oxidation kiln, stable oxidation time, balanced oxidation temperature, sufficient oxygen content and appropriate oxidation atmosphere are realized, the technical measures such as automatic control, surplus heat utilization, dust removal and environment protection are adopted, so that the low-cost oxidation and industrialized production are realized; (2), the provided systematic desulfurized ash oxidation production line is suitable for the industrialized and large-scale production requirements; (3), the processing parameters such as oxidation temperature, time and oxygen content are controlled through a PC (Personal Computer), so that the appropriate oxidation conditions are ensured; (4), the promotion of the development of a dry-method and semi-dry method desulfuration technology is facilitated; (5), the resource utilization of the desulfurized ash is realized, and the energy conservation, emission reduction and environment protection are facilitated.

The invention relates to a method for preparing a gradient nano-structure on the surface of a metal material. According to the method, a processed plate workpiece is placed inside a cooling tank; a fixture is adopted to tightly press the workpiece; the lower end surface of a tool head is placed on the surface of the workpiece, and is pressed into the surface of the workpiece; a cooling medium is poured into the cooling tank, wherein the workpiece is submerged by the cooling medium; after a temperature of the workpiece reaches a temperature of the cooling medium, the tool head rotates at a certain speed while a work table horizontally moves at a certain speed to drive the workpiece to horizontally move at a certain speed so as to complete a shear deformation treatment by the high hardness end surface of the tool head during a high speed rotation process, wherein high strain rate and large strain are generated to the surface of the workpiece with the shear deformation treatment, and a plurality of deformation treatments are performed on the surface of the workpiece by using the high-speed shear deformation technology. Compared with the method in the prior art, the method of the present invention has advantages of high processing efficiency, low equipment loss, low manufacturing cost, simple process, strong applicability, and the like.

The present invention relates to an electronic component radiating substrate, in particular to a micro heat pipe radiating substrate. The micro heat pipe radiating substrate is formed by a plurality of layers of flat plate radiating layer. A micro heat pipe structure is manufactured in an upper radiating layer and a lower radiating layer to be provided with a hot end and a cold end in vertical direction. A temperature control ceramic layer at the bottom is used for controlling the temperature of the cold end, so the whole substrate is provide with radiating and temperature control functions. Compared with the traditional metal (or ceramic) substrate, the substrate adopts the design of the micro heat pipe structure and the cold end temperature control. So the present invention not only is characterized by strong heat transport capacity, good radiating and soaking, but also is capable of controlling the temperature of the substrate. The novel substrate is used in the electron field of semiconductor light emitting diode, semiconductor laser device, semiconductor component, integrated circuit and CPU and so on and is of advantages.

Production of quick-dissolving powdered water gas slurry is carried out by mixing various additive solutions with raw material coal proportionally, delivering mixed materials into ball mill, and dry grinding to obtain the final product. It has better stability, shorter working time, less producer and consumption and higher efficiency.

The invention relates to the technical field of kitchen appliances and especially relates to a domestic multifunctional steam oven and a control method thereof. The multifunctional steam oven disclosed by the invention is provided with an instant steam generator and an infrared radiation heating plate assembly, then can be combined with a single chip microcomputer and a temperature and humidity sensor to perform program control and can perform program control on a cooking mode and cooking time through automatic selection or manual selection; meanwhile, high temperature steam output by the instant steam generator is utilized to be matched with infrared radiation to roast food materials to cook varieties of delicious food, so that quickly cooking food is achieved, cooking time is reduced, and stability in roasting food is improved. Users can share experience (steaming and roasting programs set by mobile phone APP) in making meals through the steam oven and self-created recipes (steamingand roasting programs) to an APP user group to compare together and improve cooking skills.