394 results about "Gas blending" patented technology

The present disclosure relates generally to a system for inflating a balloon and more particularly to a system and methods by which parameters for an inflation process are defined based on design and location of a balloon. Particularly, the system is configured to, automatically or in response to a user input, execute an inflation process to facilitate providing a defined minimum amount of a lighter-than-air gas followed by one or more supplemental gases to create a mixture within the balloon. Advantageously, the system may be configured to optimize an amount of each gas injected based on a design and location of the balloon and output an interface including costs, savings, and parameters relating to the location, design, and / or gaseous mixture.

The invention belongs to the field of simulation optimization control, and particularly relates to a biomass gas blending combustion parameter optimization simulation control system based on combustion product prediction, and the system comprises an acquisition module which carries out data preprocessing based on multi-source pilot frequency sampling and through frequency division domain adaptive filtering and variable step size gradient descent optimization; the prediction module is used for predicting combustion product characteristic indexes through a mechanism and data driven double-layer fusion model; the control mapping module is used for obtaining a boiler control response parameter set by adopting deep reinforcement learning strategy network analysis under multi-target constraint; and the simulation adjustment module is used for loading control parameters in the digital twin platform, judging deviation based on a dynamic self-adaptive threshold value and triggering closed-loop feedback adjustment. According to the method, the problems of inaccurate pollutant prediction and control lag caused by fluctuation of biomass raw materials are solved, and feed-forward accurate control and closed-loop adaptive optimization are realized.

The method is for producing para-xylene using, as a main raw material, a mixed gas of carbon dioxide or carbon monoxide or both thereof and hydrogen. The method including: a reaction step of bringing a raw material mixed gas including the mixed gas into contact with a reaction catalyst under high temperature and high pressure to cause a reaction, to thereby obtain a product gas mixture containing para-xylene; a separation step of cooling the product gas mixture obtained in the reaction step to condense a high boiling point component, to thereby separate the product gas mixture into a water phase containing a water-soluble component, an oil phase containing a xylene mixture, and a gas phase containing an unreacted gas; and a circulation step of mixing at least part of the gas phase having been separated in the separation step into the raw material mixed gas.

The invention discloses a hydrogen concentration measurement method based on a multi-mode sensor, and relates to the technical field of gas detection and industrial process safety monitoring. Hydrogen sensors based on different physical principles are introduced in the same measurement link, and environmental variables such as temperature, humidity, pressure and the like and sensor output are collected together; a multi-dimensional feature is formed after normalization and time alignment, and then fusion is performed by using a weight adaptive to the change of an environment, so that instantaneous errors generated by a single sensor due to temperature drift, wet drift or pressure fluctuation are shared or suppressed, and the stability and repeatability of a fusion result are improved; furthermore, a cross sensitivity compensation module arranged before fusion identifies response differences between hydrogen and interference components such as carbon monoxide and methane by using a machine learning model obtained by training under a multi-gas mixing working condition, and the probability of false signals and false alarms caused by coexisting gas is reduced on the premise that a special detection channel is not added.

A method for determining the hydrogen concentration (CH2) in an anode (6) of at least one fuel cell (4) comprises: (A) repeatedly measuring the electric current (i) output by the at least one fuel cell (4) and providing a plurality of current measurement values (i(t)); (B) repeatedly measuring the hydrogen concentration (kH2) in a gas mixture (26, 28) which flows out of a purge valve (20) which is arranged at an outlet (9) of the at least one fuel cell (20), and providing a plurality of hydrogen concentration measurement values (kH2(t)); (C) calculating relative current measurement values (irel(t)) from the measured current measurement values (i(t)) and calculating relative hydrogen concentration measurement values (krel(t)) from the measured hydrogen concentration measurement values (kH2(t)); (D) determining scaled current measurement values (iscal(t)) by multiplying the relative current measurement values (irel(t)) by a current scaling factor (gi) and determining scaled hydrogen concentration measurement values (kscal(t)) by multiplying the relative hydrogen concentration measurement values (krel(t)) by a hydrogen concentration scaling factor (gH2); (E) forming difference values (diff(t)) from the scaled current measurement values (iscal(t)) and the scaled hydrogen concentration measurement values (kscal(t)); (F) integrating or summing the difference values (diff(t)) over time (t); and (G) adding a bias value (GH2) to the integral D(T) or to the sum D(T) of the difference values (diff(t)).

The utility model relates to a hookah main machine with a reinforced atomization air channel and an electronic hookah. The hookah main machine specifically comprises a main machine body. The main machine is provided with a heating part, a second air inlet hole, an air outlet hole, a cavity used for containing tobacco materials and a heating part used for heating the tobacco materials. The second air inlet hole is communicated with the cavity and the air outlet hole to form the second air channel; wherein the number of the second air inlet holes is at least one; the second air inlet holes are formed in the periphery of the cavity; and when air is exhausted through the air outlet hole, external unheated air enters through the second air inlet hole, is mixed with the heated air around the cavity and is exhausted from the air outlet hole. By means of the second air inlet holes, the problems that tobacco materials in the tobacco bowl are only far away from the surface of the tobacco bowl and make contact with outside air, the air in the tobacco bowl is difficult to evenly enter the tobacco materials, the tobacco materials are not completely burnt, and the atomization effect of the tobacco materials is poor are solved, and it is ensured that cold air and heated gas of the tobacco materials are convectively atomized in the using process and are discharged from the air outlet holes.

The invention relates to a method for depositing a two-dimensional layer on at least one substrate of a CVD reactor, in which a process gas is fed by means of a feed line into a gas distribution chamber of a gas inlet device having a first gas distribution chamber and at least one second gas distribution chamber, and in which the substrate is brought to a process temperature by means of a heating device. In a first step, an inert gas or a diluent gas is fed into a first gas distribution chamber, and a reactive gas is fed into a second gas distribution chamber, the reactive gas is pyrolytically decomposed in a processing chamber, the decomposition product forms a two-dimensional first layer, in a second step, a second layer is deposited above and / or next to the first layer, an inert gas or a diluent gas is fed into the second gas distribution chamber and a reactive gas containing elements of the two-dimensional second layer is fed into the first gas distribution chamber, the reactive gas or gas mixture being decomposed in the process chamber, the decomposition product forming the two-dimensional second layer.

A system for determining a gas flow in a gas delivery arrangement includes a data processing device, a flow meter detecting a flow of a gas mixture of a gas compound and an impurity gas compound, wherein the flow meter provides gas mixture flow information to the data processing device, a first compound concentration analyzer calibrated to a first impurity gas compound and detecting a concentration of the first impurity gas compound in the gas mixture, wherein the first compound concentration analyzer provides a first impurity concentration information based on the detected concentration to the data processing device, wherein the data processing device determines a target gas compound flow based on the gas mixture flow information received from the flow meter and the first impurity concentration information received from the first compound concentration analyzer.

The application discloses an ozone micro-nano bubble generating device and a control method for the field of deodorization, relates to the technical field of industrial wastewater treatment, and comprises a water tank, a plurality of micro-nano bubble release heads, a plurality of circulating water pumps, an ozone generating assembly and a control module; the plurality of micro-nano bubble release heads are arranged in a plurality of mounting holes; the plurality of circulating water pumps are arranged on a plurality of water pump mounting positions, water inlets of the plurality of circulating water pumps are connected with the inside of the water tank through water inlet pipelines respectively, and water outlets are connected with the micro-nano bubble release heads through gas mixing pipelines respectively; the ozone generating assembly is connected with the plurality of gas mixing pipelines respectively; and the control module is connected with the plurality of circulating water pumps and the ozone generating assembly respectively. The application provides a device and a control method which are simple in structure, strong in controllability of parameters, capable of stably realizing high-concentration ozone micro-nano bubble production, and designed in a modular way of 'one-to-one pump-release head' and combined with a simple control logic based on the number of opened pumps.

The application provides a cooling device of a cloth bag dust collector and belongs to the technical field of cloth bag dust collectors. The cooling device of the cloth bag dust collector comprises a base and a dust collector body, the dust collector body is fixedly connected to the base, the lower end of the dust collector is provided with an air inlet pipeline, the upper end of the dust collector body is provided with an air outlet pipeline, the base is fixedly connected with a cooling box, the cooling box is provided with a conveying channel, one side of the cooling box is fixedly connected with a gas feeding pipe, the gas feeding pipe is communicated with one end of the conveying channel, the other end of the conveying channel penetrates through the side wall of the cooling box and is communicated with the other end of the air inlet pipeline, and the dust collector body is provided with a sealing assembly capable of sealing the other end of the air inlet pipeline. The application has the advantages that the conveying channel is a multi-section U-shaped pipe, the dust-containing gas has a longer cooling time in the cooling box, and the cooling effect is better; and the cooling air of the cooling fan is mixed with the dust-containing gas through the fan blades, so that the temperature of the dust-containing gas is reduced.

The invention belongs to the technical field of intrinsic safety of a gas-liquid phase mixing process, and particularly relates to a gas atomizing and mixing device. The device comprises a main pipeline, a first working part and a second working part. The first working part comprises a porous material membrane tube, and the porous material membrane tube comprises a membrane tube base body and an inner hole penetrating through the membrane tube base body in the axial direction of the porous material membrane tube. The second working part is arranged in the main pipeline, is of a Venturi tube type structure, and comprises a feeding section, a reducing section and an expanding section which are connected in sequence. The device can effectively atomize the combustible liquid and effectively vaporize atomized combustible liquid drops, and can remarkably reduce the burning and explosion risk caused by poor atomization and vaporization of the combustible liquid and non-uniform mixing of combustible steam and oxidizing gas in chemical production.

The invention comprises a thermochemical energy storage unit for storing energy storage material and for thermally insulating heat sources and sinks. The thermochemical energy storage unit comprises a particle transport system (101), a device for pressure regulation (102), a device for air dehumidification (103) and at least one modular exchange chamber (104). The modular exchange chamber (104) comprises a storage volume (110) for storing energy storage material (150), a shaft (113) and a transition region (114), a particle inlet (120) and a particle outlet (121) for introducing and discharging energy storage material (150), a gas inlet (122) and a gas outlet (123) for introducing and discharging a gas mixture, a sensor for monitoring (111), and a vibration system (112). The modular exchange chamber (104) can be exchanged for a modular replacement exchange chamber (104A). The particle transport system (101) can distribute the energy storage material (150) to a plurality of different modular exchange chambers (104). The storage volume (110) can be separated into two separate regions (170A, 170B) by a flexible separating wall (115) or by a layer of separating particles.

The utility model belongs to the technical field of blending combustion carbon reduction of a thermal power plant, and particularly provides a coal-fired thermal power plant boiler under-pressure gas blending combustion system, which is characterized by comprising a power station boiler (1), a steam turbine generator (3), a gas supply device (4), a gas supply device (5), a gas supply device (6), a gas supply device (7) and a gas supply device (8), and the power station boiler (1) is used for burning coal to produce steam and supplying the steam to the steam turbine generator (3). The pressurized combustible gas comes from hydrogen prepared by coal gasification or mixed gas of certain components; and the pressure reducing equipment is arranged at the upstream of the power station boiler (1) and is used for feeding the pressurized combustible gas into the power station boiler (1) after reducing the pressure of the pressurized combustible gas. In the system, the power station boiler (1) uses coal as main fuel to produce steam, combustible gas can also be combusted to support combustion or replace part of coal, the pressure reduction equipment reduces the pressure of the pressurized combustible gas and then feeds the pressurized combustible gas into the power station boiler (1) to be combusted, and the pressure requirement of blending combustion is met.

This invention relates to a premixed burner and a burner head for the premixed burner, the premixed burner being used to burn a gas mixture consisting of fuel and air, which at least primarily comprises hydrogen. The burner head has an inlet opening, a flame arrestor, an exit opening, and a flame retainer. Flow of the gas mixture is introduced through the inlet opening into a flow channel constructed in the burner head. The flame arrestor is arranged such that it (completely) occupies the cross-section of the flow channel in the burner head. Flow is discharged from the flow channel of the burner head through the exit opening downstream of the inlet opening and particularly downstream of the flame arrestor into the flame zone. A distinctive feature of this invention is the flame retainer, which is arranged in or thereon in a manner that occupies the cross-section of the flow channel and is a rigid, fiber-free, and wireless body.

A reactor (12) and method for the conversion of hydrocarbons utilizes a reactor (12) having a unique feed assembly (56) that creates an inwardly spiraling fluid flow pattern of the feed gases to form a swirling gas mixture that passes through a conduit (46) with a constricted neck portion or nozzle (52). At least a portion of the swirling gas mixture forms a thin, annular mixed gas flow layer immediately adjacent to the conduit (46). A portion of the swirling gas mixture is combusted as the swirling gas mixture passes through the conduit (46) for conversion of hydrocarbons.

A calibration method includes receiving data characterizing a first pressure broadening coefficient, a second pressure broadening coefficient and a third pressure broadening coefficient of the target gas absorption associated with a first background gas, a second background gas and a third background gas, respectively. The method further includes, determining a molar ratio associated with the second background gas and the third background such that an effective pressure broadening coefficient associated with a target gas mixture including the second background gas and the third background gas mixed at the determined molar ratio is within a predetermined threshold of the first broadening coefficient. The target gas mixture further includes a target gas. The method also includes calibrating a gas analyzer using the target gas mixture to replace the calibration of the target in the first background gas. The calibration is based on absorption of electromagnetic radiation by the target gas in the target gas mixture.

Powder jet device for cleaning tooth surfaces by applying a powder-gas mixture, comprising a stationary unit (20) with a connection area for a mixing chamber (32) for producing the powder-gas mixture, a handpiece (100) with a nozzle device (102) for blasting the powder-gas mixture onto a tooth surface and a connecting unit (40) for connecting the handpiece (100) to the stationary unit (20), wherein the connecting unit (40) has at least one connecting guide (42) between the stationary unit (20) and the handpiece (100), and wherein a hose section (92) which can be shut off by elastic deformation is arranged in a powder-gas line (44) between the mixing chamber (32) and the nozzle device (102), characterized by that the connecting unit (40) is detachably connected to the stationary unit (20) and that the lockable hose section (92) is arranged in the detachable connection unit (40), wherein the connecting unit (40) has a housing (52) connected to the connecting guide (42), in which the lockable hose section (92) and a pinch element (94) are arranged as a pinch valve and that the connecting unit (40) has a first coupling area (64) for coupling to a corresponding second coupling area (34) of the stationary unit (20).

The utility model relates to the technical field of breathing machines, and discloses a breathing machine and a humidifying device thereof, the humidifying device comprises a base, the base is provided with a heating bottom plate, the heating bottom plate is provided with a humidifying cavity, the humidifying cavity is respectively provided with an air inlet and an air outlet, and the air inlet and the air outlet are communicated with the base. Holes are formed in the positions where the air inlet and the air outlet are connected with the humidifying cavity, an air inlet pipe is arranged at the end, away from the humidifying cavity, of the air inlet, the air inlet is sleeved with a first heating part, the inner diameter of the first heating part is the same as the outer diameter of the air inlet, and an air outlet pipe is arranged at the end, away from the humidifying cavity, of the air outlet. The air outlet is sleeved with a second heating part, and the inner diameter of the second heating part is the same as the outer diameter of the air outlet. The water level in the humidification cavity can be accurately controlled, normal work of the humidification device is guaranteed, gas mixing uniformity is improved, and sufficient humidification and heating of gas are guaranteed.

A unit for separating a mixture of carbon monoxide, hydrogen and methane by cryogenic distillation including a distillation column having a condenser and a reboiler, a refrigeration cycle having a compressor, a first heat exchanger, a second heat exchanger, means for sending the gas mixture to be cooled in the first heat exchanger, means for separating the gas mixture cooled in the first heat exchanger and for sending a fluid produced by the separation to the distillation column, a thermally insulated enclosure containing the first and second heat exchangers, means for sending a cycle gas from the distillation column to the second heat exchanger and then to the first heat exchanger to be heated, means for sending a cycle gas liquefied in the reboiler to be cooled in the second heat exchanger, and means for sending the cycle gas liquefied and cooled in the second heat exchanger to the condenser.

Described are methods, systems, and apparatus for processing a gas mixture that contains at least two gases by contacting the gas mixture with a membrane that allows for preferential flow of one of the gases through the membrane, to separate one constituent gas from the mixture.

The invention relates to a waste lead storage battery low-carbon recovery system and a recovery process thereof. The system comprises a waste battery pretreatment unit, a crushing and sorting unit and a lead smelting unit. The waste battery pretreatment unit is provided with a waste battery storage chamber, a discharge chamber, a gas collection chamber and a to-be-crushed chamber which are communicated in sequence, and is used for waste battery storage, residual electricity electrolysis hydrogen production and temporary storage; the crushing and sorting unit comprises a multi-stage crusher, a screening machine, a sorting machine and a filter press, and is used for separating to obtain a lead grid, a lead alloy block, light plastic, heavy plastic and waste lead paste. The lead smelting unit comprises a gas-liquid separation tank, a gas mixing tank and a side-blown furnace, gas generated by electrolytic hydrogen production is purified and dried and then mixed with natural gas to form mixed gas, the mixed gas serves as fuel of the side-blown furnace, and the waste lead paste is subjected to reduction smelting in the side-blown furnace to obtain lead bullion. According to the system, by-products of hydrogen production through electrolysis of waste battery residual electricity serve as smelting fuel, low-carbon environment-friendly recycling treatment of the waste lead storage battery is achieved, and the resource utilization rate is increased.

The application discloses a plasma gas heating furnace, and relates to the technical field of heating furnaces.The heating furnace is of an inner-outer sleeve structure, and comprises a furnace body inner sleeve, which is a plasma gas passage and is provided with a gas outlet; a furnace body outer sleeve, which is a working gas passage and is sleeved on the outer side of the furnace body inner sleeve and is in communication with the furnace body inner sleeve; and an arc plasma torch, which is arranged at the end of the furnace body inner sleeve far from the gas outlet; and an air inlet assembly, which is arranged in communication with the furnace body outer sleeve and is used for feeding working gas into the furnace body outer sleeve. The arc plasma torch is used for spraying high-temperature plasma jet into the furnace body, and the working gas fed from the air inlet assembly is mixed with the high-temperature plasma jet to form target gas, so that high-temperature inert gas heated by electric energy is used to replace high-temperature flue gas generated by combustion of fossil fuel, a heat source is provided for an industrial furnace, and nearly zero carbon dioxide emission is realized in the whole heating process.

The utility model discloses a heat exchanger of a wall-hanging stove, which comprises a shell, a heat exchanger, a heat exchanger and a heat exchanger. The heat exchange coil assembly is arranged in the cavity; the combustor door is connected to the shell so as to seal the cavity, and a first gas mixing channel capable of communicating with the cavity is formed in the combustor door; the connecting plate is arranged on the burner door, a gas mixing cavity is formed between the connecting plate and the burner door, and a through hole capable of communicating the gas mixing cavity with the hollow area of the heat exchange coil assembly is formed in the connecting plate; and the gas mixing plate is connected to the burner door and corresponds to the output end of the gas mixing channel, and a second gas mixing channel capable of communicating with the gas mixing cavity is formed between the gas mixing plate and the burner door. The utility model provides the wall-hanging stove heat exchanger capable of improving the gas mixing efficiency.

The invention relates to a fan (1) for a fuel cell assembly (205) for a vehicle (200a), in particular a utility vehicle (200b). In order to recirculate a gas mixture (40) used to operate the fuel cell assembly (205), the fan (1) has a drive motor (7, 8, 9) with a motor shaft (7) which defines an axis (A), a rotor (9) coupled to the motor shaft (7), and a stator (8) situated radially outside the rotor (9); the fan (1) has a fan impeller (5) coupled to the motor shaft (7), the fan impeller (5) being designed to convey the gas mixture (40) during a rotation of the motor shaft (7); the fan (1) comprises a housing (2) with an inlet-side housing part (2a) and an outlet-side housing part (2b); the fan (1) comprises an axial bearing (19) with an axial bearing support (19a) fixed to the housing and an axial bearing rotor (19b), which is connected to the motor shaft (7) for conjoint rotation therewith, for supporting the motor shaft (7); the axial bearing support (19a) is designed 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 designed to be mounted against one another.

This utility model belongs to the field of food processing and discloses a gas circulation air-drying fermentation device, including a fermentation chamber; a main unit for temperature control and dehumidification is provided on either side of the fermentation chamber, and the main unit is provided with an air intake for air intake and an air supply for air supply; a return air pipe and an air inlet pipe are installed on the top surface of the fermentation chamber, extending horizontally away from the main unit, and the ends of the return air pipe and the air inlet pipe away from the main unit are both closed; the return air pipe is connected to the air intake and has multiple return air inlets; the air inlet pipe is connected to the air supply and has multiple air inlets, which are arranged along the axis of the air inlet pipe; a fresh air pipe is provided at the end of the return air pipe away from the main unit, and the fresh air pipe is connected to the return air pipe, and a first control valve is provided in the fresh air pipe; this effectively solves the problem in the prior art of directly injecting fresh air through the air inlet of the fermentation chamber, which easily leads to sudden changes in local environmental parameters and uneven gas mixing in the fermentation chamber.

The application discloses a high-efficiency stable heating type solid-state precursor source bottle and relates to the technical field of semiconductor manufacturing. The high-efficiency stable heating type solid-state precursor source bottle comprises a cavity module, the cavity module is composed of a left cavity and a right cavity, and an exhaust module is arranged in the cavity module. The exhaust module can make the input carrier gas flow in a covering mode, thereby uniformly contacting the solid-state precursor in the left cavity. The left cavity is specially used for the storage and volatilization reaction of the solid-state precursor, can provide a suitable heating and volatilization space for the precursor, and reduces local accumulation caused by limited space. The right cavity is specially used for the pure transportation of gas. The inner wall of the right cavity is polished, which further reduces the adsorption and residue of the precursor gas on the cavity wall, avoids the concentration fluctuation caused by the mixture of the residual gas and the newly generated gas, and greatly reduces the residue of the solid source.

The invention relates to gas flow controllers, for example to gas blender units such as an air / oxygen blender (2) for healthcare use, and to a valve (8) and valve pin (20,120) suitable for use in such a flow controller (20). In particular, a medical gas blender (2) is provided that avoids the need for pre-regulation by incorporating one or more flow control valves (8) having a high turndown ratio. Valves suitable for use in such a blender, or other flow controller (2), are also disclosed.

The invention relates to a device for capturing the carbon dioxide contained in a gas mixture by means of a liquid passing from a loading chamber to an unloading chamber. The conditions in the loading chamber force the carbon dioxide to pass from the gas mixture to the liquid and the conditions in the unloading chamber force it to be extracted therefrom. The loading of the carbon dioxide into the liquid is promoted by the temperature and pressure conditions and, where appropriate, by the addition of substances enabling crystallization or encapsulation of the carbon dioxide. The chambers can either consist of physically separate and interconnected containers, or consist of one and the same physical container where the closing and opening of valves allows the temporal transition from one state to another.

The present invention relates to a method of operating a flame ionization detector comprising providing a hydrogen containing fuel gas, providing an oxygen containing oxidizing gas, burning the fuel gas with the oxidizing gas to produce a flame, providing a sample gas to the flame to produce an at least partially ionized sample gas, wherein the sample gas contains at least one organic compound and a carrier gas, and measuring a current induced by the at least partially ionized sample gas in an electrode of the flame ionization detector. It is provided that the oxidizing gas comprises oxygen in an amount of 50 to 90 vol % of the oxidizing gas and helium in an amount of at least 10 vol % of the oxidizing gas. An arrangement comprising a flame ionization detector and a gas mixture for use in a flame ionization detector are also part of the invention.