745 results about "Gas mixing" patented technology

The invention provides a control method and system for interaction between emergency simulation training and a real respirator, and the method comprises the steps: collecting control parameters of the respirator, and carrying out the preprocessing of the control parameters, and obtaining an equipment parameter vector; calculating a physiological response state based on the device parameter vector; the physiological response state comprises alveolar pressure and oxygenation estimation; based on the physiological response state, performing quantitative judgment on the disease stage of the patient to obtain a current disease stage, and executing a corresponding evolution instruction set; a medical specification operation reference table is constructed, a target interval is extracted from the current illness state stage and the evolution instruction set, the matching degree of the target interval and a reference interval is calculated, and the reference interval is extracted from the medical specification operation reference table; determining whether to continue evolution, enter relieving or mark training is completed based on the matching degree; the breathing gas of the patient is simulated and restored through the gas compressor and the gas mixing device and is conveyed to the real breathing machine.

The invention provides a mixed flow velocity and flow measuring device and method, and particularly relates to the technical field of measuring instruments, and the device comprises a gas mixing assembly, a flow field optimization assembly, a flow velocity sensing assembly and a signal processing assembly. The gas mixing assembly comprises a differential channel mixer and a mixing cavity, and gas premixing is achieved. The flow field optimization assembly comprises a plurality of air duct partition plates and straight pipe sections, and the mixed gas conveying pipeline is divided into a plurality of independent divided air ducts; the flow velocity sensing assembly comprises a rectification assembly and a pressure sensing assembly, the rectification assembly comprises a pore plate and / or a grid, and the pressure sensing assembly comprises a plurality of uniformly distributed pressure sensing elements; the signal processing assembly comprises a differential pressure sensing transmitter, a static pressure sensing transmitter, a temperature sensing transmitter, an atmospheric pressure sensing transmitter and a data processing module. The pressure sensing element detects differential pressure signals, the differential pressure sensing transmitter converts the signals, the data processing module calculates the average flow velocity and flow of the mixed gas based on the signals and measurement data, and the measurement precision and accuracy are improved.

The invention discloses a combustion suppression device for a battery module, which is mounted at a pressure relief opening of the battery module and forms a flow channel communicated with the pressure relief opening. The flow channel comprises a gas adjusting cavity and a fire extinguishing cavity which are communicated, and the gas adjusting cavity is arranged close to the pressure relief opening; at least one gas adjusting part is arranged in the flow channel, and the gas adjusting cavity is matched with the gas adjusting part so as to adjust the pressure and / or temperature of the high-temperature and high-pressure gas discharged from the pressure relief opening; a detachable container is arranged in the fire extinguishing cavity, the container is arranged in a breathable mode, the container is filled with a solid granular fire extinguishing agent, the fire extinguishing agent can be broken or decomposed under the action of adjusted gas and release fire suppression gas, and the fire suppression gas and the adjusted gas are discharged after being mixed so as to suppress combustion of discharged gas. According to the scheme, the fire suppression gas with effective concentration can be quickly released and maintained in the early stage of thermal runaway of the battery module, the reburning risk is remarkably reduced, the container is replaceable, and the maintenance cost is reduced.

A method for forming a film, including: atomizing a raw material solution into a mist to form raw material mist; mixing raw material mist and a carrier gas to form gas mixture; placing a substrate on a placement section of susceptor; supplying gas mixture from an atomizer to the substrate to perform film formation by thermal reaction on substrate; and discharging gas mixture after the film formation through an exhaust unit, wherein in the step of supplying the gas mixture from atomizer to substrate to perform film formation by thermal reaction on the substrate, at least a part of gas mixture is supplied from a smooth section adjacent to placement section to a surface of substrate, the smooth section having a surface roughness of 200 μm or less. A method for forming a film capable of uniformly and stably producing a high-quality film on a surface of a large-diameter substrate.

The invention discloses a special gas holder safety control method and system based on multi-parameter monitoring, and the method comprises the steps: collecting the gas concentration, environmental parameters, equipment state and other multi-dimensional data inside and outside a special gas holder through a distributed sensor network, carrying out the adaptive filtering and time sequence feature extraction, and constructing a dynamic risk portrait in combination with a process situation. An LSTM-VAE hybrid model, a gas reaction knowledge graph, an improved D-S evidence theory and a pipeline topology propagation model are utilized to calculate an abnormal score, a gas interaction risk score and a space risk score respectively, a comprehensive risk value is generated through dynamic weighted fusion, risk grades are divided, and a hierarchical control strategy is triggered. When the risk is abnormal, leakage source positioning and gas mixing traceability are automatically started, and a diagnosis report is generated. The system realizes closed-loop management of monitoring, early warning, response and traceability, integrates a data driving method and a knowledge driving method, and improves the risk identification accuracy and the disposal intelligent level.

The application discloses a CVD / CVI digital model and prediction method, which comprises a first H2 barrel, an Ar barrel, a second H2 barrel, a chemical vapor deposition reactor, a gas mixer and an electronic balance with a heating function; the output port of the first H2 barrel, the output port of the Ar barrel and the electronic balance with the heating function are all connected with the gas mixer; the output port of the second H2 barrel is connected with the gas mixer; and the gas mixer is connected with the gas inlet of the chemical vapor deposition reactor; the application realizes fast and accurate prediction of the deposition rate of SiC in a wide CVD / CVI process parameter range, and lays a theoretical and method foundation for future CVD / CVI digital twinning and intelligent manufacturing.

The utility model relates to the technical field of spray guns, in particular to an automatic gas mixing spray gun diffuser, which not only can mix and stir gas flow and powder to uniformly mix the gas flow and the powder and ensure the subsequent spraying effect, but also can freely adjust the flow of the gas flow as required to improve the use flexibility of the device. Spray guns are included; the device further comprises a material conveying mechanism, an air conveying mechanism, a diffusion mechanism and a mixing mechanism, the material conveying mechanism is installed on the spray gun and conveys powder, the air conveying mechanism is installed on the spray gun and conveys air, the diffusion mechanism is installed on the spray gun and facilitates powder diffusion, and the mixing mechanism is installed on the diffusion mechanism and stirs and mixes airflow and powder.

The invention belongs to the technical field of gas mixers, and particularly discloses an efficient and stable gas mixing device. The upper portion of a shell of the device slidably penetrates through an upper fixing frame, the lower portion of the shell is fixed, the shell is sequentially divided into a preheating area, a mixing area and a reaction area, and at least two gas inlet pipelines are arranged on the shell; the mixer is arranged in the mixing area, the upper and lower ends of the internal pipe are hermetically connected with the inner wall of the mixing area respectively, and a plurality of gas distribution plates for guiding gas flow distribution are sequentially arranged at two ends and inside the internal pipe; the thermocouple guide pipe sequentially penetrates through the upper fixing frame, the preheating area and the mixer. The gas inlet pipeline sequentially penetrates through the upper fixing frame and the preheating area and extends into the mixer, and the end, outside the shell, of the gas inlet pipeline is connected with a gas supply source through a gas flow meter; one end of the mixed gas outlet pipeline penetrates through the lower fixing frame and extends into the reaction area, and the other end is connected with an analytical instrument. The device has the characteristics of compact structure, high mixing efficiency, small concentration difference, few side reactions, good stability and strong adaptability.

The utility model relates to the technical field of combustion equipment, and provides a low-nitrogen combustion device for flue gas recirculation, which comprises a circulation frame, a gas delivery pump and a secondary gas mixing mechanism, the circulation frame is provided with a venturi mixing tube group, the venturi mixing tube group is communicated with a uniform gas delivery mechanism for flue gas delivery, the gas delivery pump is mounted on the circulation frame, and the secondary gas mixing mechanism is mounted on the circulation frame. The gas outlet end of the gas conveying pump is communicated with one end of the Venturi mixing tube set through a gas conveying bent tube, and the secondary gas mixing mechanism is installed on the circulation frame, arranged in the Venturi mixing tube set in a penetrating mode and used for conducting secondary acceleration and mixing on gas in the Venturi mixing tube set. The low-nitrogen combustion device for flue gas recirculation solves the problem that in the prior art, when a low-nitrogen combustion device for flue gas recirculation circulates flue gas, the mixing efficiency of the flue gas and air is poor.

The present application belongs to the field of coal mine safety and coal gas utilization, and discloses a gas mixing control system for preventing freezing of a gas heat accumulation and oxidation shaft, which comprises a mixing device, a gas flow regulating valve, a mixed gas concentration measuring sensor and a controller. The mixed gas concentration measuring sensor is provided as at least two, and the control concentration value used by the controller is obtained by taking the arithmetic mean of the measured values of each mixed gas concentration measuring sensor. The control system uses the concentration difference between the upper and lower limits of the mixed gas concentration as a buffer zone, and continuously adjusts the opening of the low-concentration gas flow regulating valve at a certain frequency based on the mixed gas concentration monitoring value within a set time period, so that the mixed gas concentration is smoothly adjusted to the set operating target value. The present application also relates to a gas mixing control method.

The utility model relates to a mixing system for various high-flow gases and semiconductor process equipment. The system has the advantages that the first gas input module is communicated with the first flow control modules, the second gas input module is communicated with the second flow control modules, the second flow control modules are used for controlling flow at the same time, the flow control precision is improved, and then the concentration precision is improved; the first gas mixing module is respectively communicated with the first flow control module and the second flow control module, and the first gas and the second gas are primarily mixed through the first gas mixing module, so that the concentration uniformity of the whole system is improved; the second gas mixing module is communicated with the first gas mixing module, and the second mixed gas obtained by primary mixing is finely mixed, so that the concentration uniformity of gas mixing is further improved.

An example gas mixing device includes: a first inlet port for receiving a flow of nitrous oxide; a second inlet port for receiving a flow of oxygen, wherein the nitrous oxide and the oxygen are mixed to form a gas mixture; a breathing circuit port for providing the gas mixture to a patient; a user interface having a graphical user interface (GUI) displayed thereon, wherein the GUI comprises a touch-and-slide adjuster button configured to control a gas concentration of the nitrous oxide or the oxygen in the gas mixture; and a processor performing operations comprising: receiving information indicating that a user has touched and slid the touch-and-slide adjuster button along a gas concentration scale to a particular concentration setting, and responsively, change a concentration percentage of a respective gas in the gas mixture to correspond to the particular concentration setting.

The utility model discloses a medical gas mixing device which comprises a connecting frame and connecting pipes, two groups of connecting pipes are arranged in the connecting frame and are communicated with each other, a mixing pipe is arranged on the side wall of the connecting frame and is fixedly connected with the connecting frame, the connecting pipes are communicated with the mixing pipe, and the mixing pipe is communicated with the connecting frame. An adjusting buckle is arranged in the connecting frame on one side of the connecting pipe, the adjusting buckle is in sliding connection with the connecting frame, a servo motor is installed on the outer wall of the mixing pipe, a transmission shaft is installed at the output end of the servo motor, and the surface of the transmission shaft is sleeved with a transmission bevel gear; and a placement frame is mounted in the mixing pipe on one side of the transmission shaft. According to the gas mixing device disclosed by the utility model, gas is conveniently stirred and mixed in a linkage manner, the flow of the gas is adjusted, the gas is conveniently and uniformly mixed, the filter block is quickly disassembled, assembled and replaced, and the gas mixing effect and quality are improved.

The utility model provides a laser oral cavity therapeutic instrument water-gas mixing nozzle, which comprises a water-gas nozzle body, a tip fixing insert and a laser emitting tip, the laser emitting tip is sleeved on the tip fixing insert, the tip fixing insert is sleeved on the water-gas nozzle body, and the laser emitting tip is sleeved on the water-gas nozzle body. A water conveying pipeline, a gas conveying pipeline and a water-gas outlet hole are arranged in the side wall of the water-gas spray head body, and the water conveying pipeline and the gas conveying pipeline are respectively communicated with the water-gas outlet hole; an optical fiber is embedded in the laser emitting tip, and the orientation of the water vapor emitting hole is consistent with the orientation of the laser emitting tip. After the laser emitting tip is fixedly arranged on the water vapor nozzle body through the tip fixing plug-in, a high-energy laser beam can be output through the optical fiber, meanwhile, water fed by the water conveying pipeline and gas fed by the gas conveying pipeline can form water vapor spray before water vapor exits the jet hole, and cooling and cleaning are conducted through the water vapor spray in the operation process. The oral cavity of a patient is not burdened, and a good cooling and cleaning effect can be achieved.

The present invention relates to a large-flow-rate gas mixing system and method, and a semiconductor process device. The large-flow-rate gas mixing system comprises a first gas input unit, a second gas input unit, at least one first flow rate control unit, at least one second flow rate control unit, a first gas mixing unit, a first concentration analysis unit, a second gas mixing unit, a second concentration analysis unit, a first gas output unit, and a second gas output unit. The present invention has advantages that: the first gas input unit is communicated with a plurality of first flow rate control units, the second gas input unit is communicated with a plurality of second flow rate control units, and the plurality of second flow rate control units are used to simultaneously control a flow rate, thereby improving the control accuracy of the flow rate, and thus improving concentration accuracy; the first gas mixing unit is separately communicated with the first flow rate control units and the second flow rate control units, and a first gas and a second gas are initially mixed by means of the first gas mixing unit, thereby improving the concentration uniformity of the overall system.

The invention discloses an additive atomization feeding device and clothes treatment equipment, and the feeding device comprises a gas generation device which is used for generating gas; the containing cavity is used for containing liquid containing additives; the atomization module is used for atomizing liquid containing an additive and putting the liquid; the gas pressurizes the interior of the containing cavity, one path of the containing cavity outputs the gas to the atomization module, the other path of the containing cavity outputs liquid to the atomization module, the pressure of the gas in the containing cavity is larger than that of the gas in the atomization module, and the gas and the liquid are atomized. Gas is introduced into the containing cavity to be pressurized, the gas and liquid are output to the atomization module to be atomized, the gas pressure in the containing cavity is larger than the gas pressure in the atomization module, liquid discharging can be pressurized, the liquid discharging speed can be increased, the liquid is prevented from flowing back to the containing cavity under the action of the gas in the atomization nozzle, and the atomization effect is improved. And it can be guaranteed that liquid smoothly enters the atomization module to be mixed with gas for atomization, the atomization effect is guaranteed, and spraying is uniform.

An apparatus for steam reforming includes a reactor, a condensate separator, a condensate stripper, and a steam boiler. The reactor produces hydrogen and is connected to the condensate separator such that a gas mixture is conducted from the reactor into the condensate separator. The condensate separator and the condensate stripper are connected so that condensate separated out in the condensate separator is conducted into the condensate stripper. The condensate separator and the steam boiler are connected such that cleaned condensate can be conducted into the steam boiler. The steam boiler is connected to the reactor and to the condensate stripper in a steam-conducting manner. The boiler water feed line of the steam boiler is connectable to the condensate stripper in a liquid-conducting manner. A supply from the boiler water feed line is at a same location of the condensate stripper as a supply of the condensate from the condensate separator.

The utility model discloses a nose washing device and a nose washing device, and relates to the technical field of medical equipment, the nose washing device comprises a machine shell, an air inlet assembly, an atomizing head and a triggering piece, and the atomizing head and the triggering piece are arranged on the machine shell; the shell is provided with a liquid cavity, a mounting cavity and an air inlet communicated with the mounting cavity; the air inlet assembly comprises an air inlet pipe, an air guide pipe and an exhaust pipe arranged in the mounting cavity, one end of the air inlet pipe communicates with the air guide pipe and the exhaust pipe, the other end of the air inlet pipe is arranged at the air inlet and forms an exhaust gap with the air inlet, and the air guide pipe communicates with the liquid cavity; the atomizing head is communicated with the liquid cavity and the air guide pipe; when the trigger piece is triggered, communication between the exhaust gap and the exhaust pipe is cut off, so that when gas of the gas source is transmitted to the air guide pipe, cleaning liquid in the liquid cavity can be brought out and mixed with the gas to be atomized into water vapor, and then the water vapor is sprayed out through the atomization head. According to the nasal irrigator, the service life of the nasal irrigator can be prolonged, meanwhile, the applicability of the nasal irrigator under different environments and conditions is widened, and wider use scenes are provided for users.

This invention discloses an automatic oxygen concentration adjustment system for a ventilator, comprising an oxygen supply module, an air supply module, a gas mixing module, a gas output module, a detection module, and a control module. The gas mixing module includes an initial mixing unit and a secondary mixing unit. The initial mixing unit is equipped with a first concentration detection device, and the secondary mixing unit is equipped with a second concentration detection device. The initial mixing unit includes an outer shell and an inner shell. An oxygen inlet is provided at the upper part of the inner shell, and an air inlet is provided at the bottom of the outer shell. The inner shell includes an upper mixing section, a middle mixing section, and a lower mixing section that are connected to each other. An air inlet is provided on the upper mixing section, and the air inlets are distributed in a gradually denser manner from top to bottom. The diameter of the upper mixing section is larger than that of the middle mixing section, and the diameter of the lower mixing section is larger than that of the upper mixing section. A first fan is provided at the bottom of the air chamber. The lower mixing section is connected to the secondary mixing unit through a connecting pipe, and a second fan and a first concentration detection device are provided inside the connecting pipe.

The invention provides an intelligent foot health repair system, and belongs to the technical field of foot disinfection and repair. An intelligent foot health repair system is characterized by comprising a gas generation system, a control system and a control system, the gas generation system comprises an ozone generator and a hydrogen generator, and the ozone generator and the hydrogen generator can respectively or simultaneously generate ozone and hydrogen; the gas mixing system can control and mix ozone and hydrogen to generate mixed gas with preset concentration; the gas conveying system can convey the mixed gas to a foot disinfection and repair area; and the control system can control the operation of the gas generation system, the gas mixing system and the gas conveying system and adjust the concentration and the conveying rate of the mixed gas. The device has the advantages that ozone and hydrogen are generated through electrolytic reaction with water, the ozone has the effects of sterilization, disinfection, inflammation diminishing and infection resistance, the hydrogen has the effects of oxidation reduction, aging resistance and cell repair, the gas mixing system controls and mixes the ozone and the hydrogen to generate mixed gas with preset concentration, the effect of treating dermatophytosis is achieved, and the device is suitable for popularization and application. Operation is convenient, and popularization and use of common people are facilitated.

The invention relates to the technical field of boiler combustors, in particular to a hydrogen-ammonia mixed low-nitrogen emission combustor which comprises a gas conveying assembly, a gas inlet assembly and a gas outlet assembly. The gas mixing assembly is arranged in the tank body and comprises a gas mixing cylinder, a plurality of gas mixing plates are arranged on the inner wall of the gas mixing cylinder, the diameter of the first end of the gas mixing cylinder is larger than that of the second end of the gas mixing cylinder, and the two gas inlet pipes are arranged on the side close to the first end of the gas mixing cylinder; and the combustion assembly is arranged on the outer side of the tank body and comprises a cover body, and a nozzle is arranged between the cover body and the second end of the gas mixing cylinder. In the invention, the two air inlet pipes are respectively arranged on the side walls of the two sides of the tank body, and the length in the horizontal direction is shortened, so that the occupied space is small, the industrial boiler is suitable for a narrow space near the industrial boiler, and the industrial boiler can be mounted in place.

The invention relates to a fast heating fuel cell system and a control method, in the fuel cell system, air is divided into three paths after being pressurized by a fan, one path of air enters a stack cathode after absorbing heat from a combustor through an air preheater, and the other path of air directly enters a stack for adjusting the inlet temperature of the stack cathode; the other path absorbs secondary waste heat of the anode tail gas through an air cooler, and enters a stack cathode after being secondarily preheated by an air preheater; the cathode tail gas is heated by a combustor, then subjected to primary heat release by an air preheater and subjected to secondary heat release by CPOx; fuel is fed into CPOx through a circulating pump to be mixed with gas from an air preheater for a catalytic oxidation reaction, and after the reaction, primary waste heat of anode tail gas is absorbed through an anode tail gas cooler, and then the fuel enters an electric pile fuel side; anode tail gas is divided into two paths after primary heat release through the anode tail gas cooler, one path enters the combustor to be heated, and the other path returns to the circulating pump after secondary heat release through the air cooler.

The present application relates to hot water supply equipment technical field, disclose a kind of gas premixing device, gas water heating equipment and control method. Among them, gas premixing device includes premixing outer tube and premixing inner tube, premixing outer tube is equipped with air passage, premixing inner tube is located in premixing outer tube, the outer wall between premixing inner tube and the inner wall of premixing outer tube is enclosed to form the gas chamber being communicated with gas inlet, premixing inner tube is equipped with spoiler, gas mixing passage and air passage being communicated with air inlet, gas mixing passage is respectively communicated with the outlet of air passage and the outlet of gas chamber, at least part of spoiler is located in gas mixing passage. The present application is equipped with multiple spoiler being communicated with gas outlet passage by being located in the inner wall circumferential side of gas mixing passage, gas flows out from gas outlet passage and enters into spoiler, under the spoiler effect of gas in spoiler, make gas and air form turbulent flow at gas mixing passage, realize the sufficient mixing of gas and air.

The utility model provides a kind of water-gas mixing system and operation car, it is related to sanitation vehicle field.Water-gas mixing system includes water pump, gas supply component, at least one venturi component and at least one spray head.Venturi component includes venturi and reversing valve.Venturi includes gradually tapering pipe, throat pipe and gradually expanding pipe connected in sequence, water pump is connected with gradually tapering pipe, throat pipe is provided with connecting port, and gas supply component is connected in connecting port.Reversing valve is arranged in the gas path between gas supply component and connecting port.Reversing valve has opening state and closed state, reversing valve can block gas supply component to supply gas to connecting port when in closed state, and reversing valve can make gas supply component and connecting port communicate when in opening state.Spray head is correspondingly arranged with venturi component, and is connected with gradually expanding pipe.It can realize water-saving operation under the premise of ensuring flushing operation efficiency by water-gas mixing.

The utility model discloses a healthy water nourishing machine with an electrolytic hydrogen production water and membrane wire hydrogen mixing system. The healthy water nourishing machine comprises a water purifier module, an electrolytic hydrogen production water module and a membrane wire hydrogen mixing module, the alkaline electrolytic bath and the pressure membrane filament gas mixing unit are arranged on the water outlet main channel; the water outlet auxiliary channel conveys water to the membrane wire water tank; the proton membrane electrolytic bath, the membrane filament water tank and the membrane filament water pump are communicated through a membrane filament electrolysis water path; a hydrogen output gas path is arranged at the hydrogen generation end of the proton membrane electrolytic cell; and the hydrogen output gas path is connected with the pressure membrane wire gas mixing unit and can dissolve hydrogen into the water outlet main channel. According to the utility model, the technical bottleneck of the traditional single process is successfully broken through by innovatively integrating electrolytic hydrogen production water and membrane wire hydrogen mixing double systems, the stability of the core physical and chemical indexes of the electrolytic water is ensured by the double-channel shunting waterway design, and the hydrogen content is greatly increased through physical hydrogen mixing, so that healthy water which conforms to the indexes and is sterilized by ultraviolet rays is formed.

The invention relates to a coating material for a processing chamber. Embodiments described herein relate to methods of controlling the uniformity of SiN films deposited on large substrates. When a precursor gas or gas mixture in a chamber is excited by applying radio frequency (RF) power to the chamber, an RF current flowing through the plasma produces a standing wave effect (SWE) in an inter-electrode gap. When the substrate or electrode size approaches the RF wavelength, SWE becomes significant. Process parameters, such as process power, process pressure, electrode pitch, and gas flow ratio, may affect the SWE. These parameters may be altered in order to minimize SWE problems and achieve acceptable thickness and property uniformity. In some embodiments, methods of depositing a dielectric film over a large substrate at various process power ranges, at various process pressure ranges, at various gas flow rates while achieving various plasma densities will be used to reduce the SWE to yield greater plasma stability.

Blower (1) for a fuel cell arrangement (205) for a vehicle (200a), in particular a commercial vehicle (200b); wherein the blower (1) for recirculating a gas mixture (40) used for the operation of the fuel cell arrangement (205) comprises a drive motor (7, 8, 9) with a motor shaft (7) defining an axis (A), a rotor (9) coupled to the motor shaft (7), and a stator (8) arranged radially outside the rotor (9); the blower (1) comprises a blower impeller (5) coupled to the motor shaft (7), wherein the blower impeller (5) is configured to convey the gas mixture (40) when the motor shaft (7) rotates; the blower (1) comprises a housing (2) with an inlet-side housing part (2a) and an outlet-side housing part (2b); the blower (1) comprises an axial bearing (19) with a housing-fixed axial bearing support (19a) and an axial bearing rotor (19b) connected to the motor shaft (7) in a rotationally fixed manner for supporting the motor shaft (7);wherein the axial bearing support (19a) is configured to be held on the inlet-side housing part (2a); and the inlet-side housing part (2a) and the outlet-side housing part (2b) are configured to be mounted together.

The invention relates to the technical field of electronic atomization equipment, and discloses a multi-taste switching electronic atomization device with a single microphone. In order to overcome the defects that an existing multi-taste device is large in microphone number, high in cost, delayed in response, blow-by and the like, the device comprises a rotatable suction nozzle assembly internally provided with a single microphone, a signal plate with detection gears, a main plate, a fixing plate and a plurality of taste atomization devices with independent air channels. A user rotates the suction nozzle to a target gear, and the signal board identifies the suction nozzle and then sends a gear signal to the main board; the inspiration triggers the microphone, the main board controls the corresponding taste atomization device to work, and atomized gas is output through the independent gas channel. Only a single microphone is used, welding wire points are reduced, the response speed is increased, the blow-by problem is thoroughly solved, the structure is simple and reliable, and the cost and the failure rate are reduced.

The application discloses a burner and a gas stove. The burner comprises a gas mixing pipeline, a gas mixing channel is formed in the gas mixing pipeline; a turbulence structure is arranged in the gas mixing channel, and is used for disturbing the mixed gas flow of the gas and the air in the gas mixing channel; and a first fan is installed on the gas mixing pipeline, and the impeller of the first fan is communicated with the gas mixing channel, and is used for stirring the mixed gas flow in the gas mixing channel. The application provides a burner, the turbulence structure is arranged in the gas mixing channel of the gas mixing pipeline, so that the mixed gas flow of the gas and the air in the gas mixing channel can be disturbed, and the mixing uniformity of the gas and the air is improved. The first fan is arranged, so that the mixed gas flow of the gas and the air in the gas mixing channel is stirred, the mixing between the air and the gas is more uniform, and the combustion efficiency of the burner is improved.

The utility model discloses a short gas path gas mixing device which comprises a gas mixing station, the gas mixing station is provided with at least one input pipeline and an output pipeline, the input pipeline is used for being connected with an external gas source so as to input single gas into the gas mixing station, and the output pipeline is used for conveying mixed gas to a cutting head; the gas mixing station is fixedly connected with the cutting head through the connecting frame and can synchronously move along with the cutting head; wherein a proportional valve is arranged in the gas mixing station and used for mixing input single gas according to a preset proportion and outputting the mixed gas to the cutting head through an output pipeline, the gas mixing station is integrated on the cutting head through a connecting frame so that follow-up of the gas mixing station and the cutting head can be achieved, and therefore the length of the output pipeline is greatly shortened; therefore, the discharging speed of residual mixed gas in the output pipeline is increased, and the production efficiency is improved.