490 results about "Low emission" patented technology

The invention provides a PLC-based biomass gasification industrial steam full-automatic intelligent control system and method. The system comprises a data acquisition module, a modeling identification module, a multi-objective optimization module, a rolling prediction control module, a coordination execution module, a self-adaptive correction module and an abnormal fault tolerance and safety control module. The system collects operation data of a feeding system, a gasification furnace, a boiler, a steam-water system and an environmental protection system in real time through a PLC platform, a dynamic coupling model of a combustion side, a steam-water side and an environmental protection side is established, and a multi-target constraint optimization model with stable steam pressure, up-to-standard emission and minimum energy consumption as targets is constructed. According to the invention, unattended operation of the biomass gasification industrial steam system is realized, the system has the advantages of high control precision, low energy consumption, stable emission and strong fault-tolerant capability, and the intelligence and safety of the industrial steam system are obviously improved.

The invention discloses an air-fuel ratio control method for a high-pressure direct injection engine in a diesel-natural gas dual-fuel cylinder, and relates to the technical field of engine control, and the air-fuel ratio control method comprises the following steps: collecting diesel mass flow, natural gas volume flow and natural gas component data, and determining a diesel-natural gas mixing ratio; a basic target air-fuel ratio is obtained by combining the real-time rotating speed of an engine, the load and the diesel oil-natural gas mixing proportion; based on the pressure and temperature of the intake manifold and the rotating speed of the engine, the target air-fuel ratio after model correction is obtained; the working condition load change rate is detected, the pre-optimized air-fuel ratio trajectory MAP is called, and a transient correction target value is generated; calculating the deviation between the transient correction target value and the measured value of the air-fuel ratio sensor and the deviation change rate, and outputting an air-fuel ratio correction value; and the final target air-fuel ratio is calculated and sent to an air flow control valve to execute air inlet adjustment. The method is suitable for engine application scenes requiring high-precision and self-adaptive control to improve combustion efficiency and reduce emission.

The utility model provides an algal-bacterial symbiosis synergistic denitrification reaction device based on anaerobic ammonia oxidation, and relates to the technical field of wastewater treatment. The device comprises a reactor and a plurality of biological ribbons arranged in the reactor, a water inlet and a water outlet are formed in the two ends of the reactor respectively, the biological ribbons are vertically distributed in the reactor in the water flow direction and divide the reactor into a plurality of reaction spaces, and the two ends of the tops of the biological ribbons are fixed to the side wall of the reactor; and the height of the biological ribbon is lower than that of the reactor. The anaerobic ammonia oxidation-phycomycete symbiotic system is introduced into the reactor containing the biological ribbons, low-energy-consumption and low-emission treatment of low-C / N urban domestic sewage is achieved, the biological ribbons are selected as a loading material of the reactor, the interior of the reactor is provided with rich pore structures, and the biological ribbons are loaded on the reactor. A large amount of biological attachment surface area is provided for growth and reproduction of algae and other microorganisms in water, and a large amount of attachment sites and powerful growth conditions are provided, so that the sewage treatment effect is improved.

The invention relates to the technical field of engine control, in particular to an engine combustion control method, device and system based on double oil sprayers and a computer program product. Comprising the steps that when an engine enters a lean-burn working condition and meets a self-learning condition, self-learning of the injection starting angle and the excess air coefficient of an auxiliary oil injector is conducted; ignition advance angle self-learning of the auxiliary fuel injector is carried out; and fuel injection control over the auxiliary fuel injector is conducted on the basis of the injection starting angle, the excess air coefficient and the ignition advance angle obtained through self-learning. And when refined fuel oil control is carried out to achieve the optimal fuel consumption of the engine, the lowest NOx emission requirement under the lean-burn working condition of the engine is met.

The invention discloses industrial solid waste treatment and resource utilization, and particularly relates to a washing-free sintering resource treatment method for household garbage incineration fly ash. Fly ash which is not washed with water, a silicon-aluminum hardening and tempering agent and solid fuel are mixed according to a specific proportion, granulated and sintered, and dioxin control and heavy metal directional migration are achieved through the temperature gradient of a material layer. According to the invention, low-temperature (1t, 150 DEG C) and low-pollution flue gas is shunted for common purification according to the temperature and component difference of flue gas at each sintering section, and dust (product dust) is returned for utilization; high-temperature (more than or equal to 150 DEG C) and high-pollution flue gas is divided for quenching and activated carbon deep purification, and dust (heavy metal concentrated ash) of the flue gas is sold for metallurgy. According to the invention, the fly ash washing link is thoroughly omitted, and the consumption of the adsorbent and the operation cost are greatly reduced while ultra-low emission is ensured through a flue gas quality-dividing and flow-dividing technology, so that low-cost, thorough harmlessness and high-value recycling of the fly ash are realized.

The embodiment of the invention provides a low-emission and high-efficiency boiler combustion control and management system, relates to the technical field of low-emission and high-efficiency boiler combustion control and management systems, and aims to solve the problems that the combustion efficiency is reduced and the emission of nitrogen oxides is increased due to poor air-coal matching synergism. The system comprises a sensor array, a data acquisition and preprocessing module, a multivariable coupling analysis engine, a combustion state collaborative decision center and an actuator driving array, and an optimal air-coal ratio set point is generated in real time through deep neural network modeling and a multi-target dynamic optimization algorithm. And the actuating mechanism is driven to cooperatively adjust air supply, fuel and flue gas recirculation, so that cooperative control of high efficiency and low emission is realized.

The invention relates to the technical field of flue gas purification and recovery, in particular to an ultralow emission system and method for chemical looping combustion flue gas. The system comprises a fuel reactor, a flue gas outlet of the fuel reactor is connected with an inlet of a cyclone separator, and a first nitrogen oxide removal unit and a second nitrogen oxide removal unit are sequentially arranged on an outlet flue of the cyclone separator; the outlet flue is sequentially connected with the dust removal unit, the desulfurization unit and the recycling unit, and part of flue gas treated by the dust removal unit is used for diluting a denitration reducing agent in the second nitrogen oxide removal unit and / or returns to the fuel reactor for cyclic utilization; and part of recycled flue gas treated by the recycling unit is at least used for atomization of a denitration reducing agent in the first nitrogen oxide removal unit, and / or returns to the chemical looping coal feeding system. According to the system and the method, a whole-process treatment link of denitration, dust removal, desulfurization and carbon dioxide capture and recovery of the chemical looping combustion flue gas is constructed, corresponding pollutants are accurately removed by each unit, and the flue gas is recycled.

The application discloses a low-NOx ammonia fuel combustion system based on plasma combustion support X The generated staged ammonia gas combustion system comprises a high-frequency high-voltage power supply, a dielectric barrier plasma generator, a gas distribution system (a blower and an ammonia storage tank), a combustion chamber and a swirler; the dielectric barrier plasma generator comprises a high-voltage electrode, an insulating medium, a swirler and a ground electrode; and the gas distribution system comprises a blower and an ammonia storage tank. The application utilizes dielectric barrier to generate ammonia gas plasma discharge, reduces the difficulty of ammonia gas combustion and improves the stability of ammonia gas combustion; utilizes the swirler to generate rotating airflow and improves the combustion efficiency; utilizes ammonia gas staged combustion to further reduce NOx emission; and the ideal staged ratio is that the volume ratio of ammonia gas plasma to side wall ammonia gas is 20% (10%-30%), so that the ammonia gas plasma can be fully discharged, and the ammonia sprayed from the side wall can also be fully combusted.

The invention provides a flue gas desulfurization and denitrification ultra-low emission DCS control system, belongs to the technical field of flue gas purification, and solves the technical problems that an existing desulfurization and denitrification DCS control system cannot realize deep synergy of desulfurization and denitrification and cannot perform ultra-low emission with accurate prediction and efficient response. The system comprises a boiler, an SCR denitration reactor connected with a flue gas outlet of the boiler, and an air pre-heater fixedly mounted at an outlet of the SCR denitration reactor, wherein an outlet of the air pre-heater is fixedly connected with a dust remover. According to the invention, through the arrangement of the data acquisition assembly and under the action of the collaborative optimization assembly, the system realizes an ammonia escape feedforward-compensation mechanism, the negative coupling between the denitration control unit and the desulfurization control unit is broken, the blockage of ammonium bisulfate is effectively prevented, the reliability of the desulfurization control unit is improved, and the service life of the desulfurization control unit is prolonged. Data acquisition, working condition identification, prediction and energy efficiency optimization are integrated on a unified DCS platform, and closed-loop intelligent control from sensing to decision making to execution is realized.

The invention discloses a preparation process and application of a photovoltaic solder strip precoating flux, and belongs to the technical field of energy conservation and environmental protection. According to the welding flux, polyurethane modified epoxy resin and photosensitive acrylate serve as matrixes, modified carbon quantum dots, a nano welding-aid active agent and a modified dicyandiamide curing system are introduced, fumed silica, polyether modified organic silicon, a titanate coupling agent, an antioxidant and a flatting agent are compounded, and high-speed dispersion, grinding and vacuum defoaming are conducted to obtain the welding flux. The obtained pre-coated flux forms a coating through precise coating, cross-linking curing is conducted under the UV-LED segmented photocuring and thermocuring conditions, the welding strength of a welding strip and the adhesive force of the coating can be remarkably improved, corrosion resistance is enhanced, VOC emission is reduced, and the pre-coated flux is suitable for large-scale production of efficient and long-life photovoltaic modules.

The invention relates to the field of combustion and waste gas treatment, in particular to an integrated low-NOx self-preheating combustion device. The system comprises a combustor, a controller, a heat exchanger and a waste gas purifier, the combustor provides combustion air and fuel gas for a combustion chamber, the controller ignites mixed gas, the waste gas purifier recycles and purifies waste gas, the heat exchanger preheats the combustion air, and the invention further relates to specific structures and connection modes of various components. According to the device, the technical effects that the heat in the waste gas is effectively recycled to preheat the combustion-supporting air while the kiln is heated, the energy utilization rate is increased, NOx in the waste gas is reduced into N2 and O2 through the purification filter element, and NOx emission is reduced are achieved.

The utility model relates to a thick-thin separation ultra-low emission desulfurization system which comprises a thick tower, a thin tower, a thick liquid circulating pool and a thick liquid circulating pump which are communicated with one another, concentration towers and dilution towers with the corresponding number are correspondingly arranged, one concentration tower corresponds to one dilution tower, a plurality of concentration towers and a plurality of dilution towers are parallel, discharged liquid of all dilution towers enters the same concentrated liquid circulating pool, and concentrated liquid of all concentration towers also enters the same concentrated liquid circulating pool. Gypsum slurry is uniformly discharged from the concentrated liquid circulating pool by a gypsum discharge pump to a public gypsum dehydration system for dehydration; according to the utility model, SO2 in boiler flue gas is eluted by connecting the thick tower and the light tower in series, a plurality of boilers share one thick liquid circulating pool, and a thick-thin separation state of high concentration and low PH value of thick tower slurry and low concentration and high PH value of light tower slurry is kept during operation, so that desulfurization is efficiently graded from the source, the generation concentration of particulate matters in the desulfurization tower is reduced, and the desulfurization efficiency is improved. The method has the advantages of high desulfurization efficiency, low desulfurization agent consumption and the like.

The present application relates to an electron emission cooling thermal protection material and a preparation method and application thereof, and belongs to the technical field of composite materials, and solves the problem that the existing electron emission cooling thermal protection material cannot consider low emission work and high conductivity. The present application provides a preparation method of an electron emission cooling thermal protection material, ceramic matrix powder and conductive reinforcing phase material are homogenized and mixed, then densification forming and high reduction heat treatment are performed to obtain a composite material with a continuous conductive network. The electron emission cooling thermal protection material prepared by the preparation method has excellent comprehensive performance, the emission work is not higher than 3.5 eV, the conductivity can be up to 4.72*10 ‑2 S / m, and is not prone to performance degradation in a high-temperature oxidation environment. After heating and oxidation treatment of the material in air at 1600 DEG C, the emission work decreases by not more than 15% and the conductivity decreases by not more than 10% after 5 minutes of oxidation treatment, and the electron emission cooling can be realized efficiently and sustainably in a severe environment.

The invention relates to the field of gas turbines, in particular to a gas turbine combustion chamber air flow regulating valve which is arranged between a combustion chamber outer casing and a flame tube and comprises a regulating unit and a communicating unit, and an inner channel of the communicating unit is communicated with an air inlet of the flame tube in a sealed mode. A transmission space pointing to the flame tube from the outer casing side of the combustion chamber is formed, the flux of the transmission space is controlled by the adjusting unit to be adjusted by the communicating unit, the communicating unit comprises a valve flange connected to the flame tube, and the other end of the valve flange is fixedly connected with a valve switching section. The end, away from the valve flange, of the valve switching section is fixedly connected with the air inlet flow channel. The air distribution proportion in the combustion chamber can be actively adjusted according to the working condition change of the gas turbine, different combustion requirements under high and low working conditions are met, and the stable working boundary of the low-emission combustion chamber is effectively widened.

This invention relates to a method and system for precise ammonia injection, belonging to the field of flue gas denitrification technology. The method first obtains the performance parameters of the SCR catalyst, establishes an automatic control model including normal and abnormal operating conditions, then selects overall or zoned control of the ammonia injection grid based on the flue gas flow field distribution, calculates the ammonia injection rate by combining inlet flue gas data and catalyst parameters, and performs closed-loop feedback adjustment of the ammonia injection rate using outlet flue gas data. The system includes an automatic control model, a data detection and collection system, a control system, and an ammonia injection grid. The data detection and collection system adopts in-situ rapid measurement technology, which can collect inlet and outlet flue gas parameters in real time. This invention can precisely control the ammonia injection rate, reduce ammonia slip, reduce ammonium salt formation, extend the service life of the catalyst and equipment, and stably meet the ultra-low emission requirements of flue gas.

The utility model discloses a natural ventilation burner of a multi-layer small injection structure. The natural ventilation burner comprises an outer-layer fuel gas channel, a central fuel gas channel, a combustion-supporting air channel and a backflow flue gas channel. According to the utility model, the gas injection structure which is finely and dispersedly arranged is taken as a core, the gas injection structure is divided to be smaller and more dispersedly, flue gas and combustion-supporting air are respectively injected by gas at different positions, and the combustion organization is optimized and the temperature of a reaction area is homogenized in a manner of reducing the injection structure and performing multi-point dispersive arrangement, so that the combustion efficiency is improved. Safe and sufficient combustion under the natural ventilation condition is achieved, and meanwhile low NOx emission is kept.

The utility model discloses an integral dust removal system for a workshop, which relates to the technical field of dust removal and comprises a dust collection pipeline, a bag-type dust remover, an air compressor, an induced draft fan, a spray tower and an exhaust pipeline, the dust collection pipeline is connected into a plurality of stations, an air inlet of the bag-type dust remover is connected with the dust collection pipeline, and the air compressor is communicated with the bag-type dust remover through a pipeline. An air inlet of the induced draft fan is communicated with an air outlet of the bag-type dust collector through a pipeline, an air inlet of the spray tower is communicated with an outlet of the induced draft fan through a pipeline, and the exhaust pipeline is communicated with an air outlet in the top of the spray tower through a pipeline. According to the utility model, cloth bag dust removal and spray tower dust removal are carried out in sequence, high-efficiency dust removal and deep purification can be realized through graded purification, the ultra-low emission requirement is met, and gaseous pollutants are removed at the same time; the system stability is improved; and dust escape and secondary pollution are prevented. The included angle between the dust collection pipeline and the horizontal plane can prevent smoke dust from accumulating in the pipeline due to horizontal laying of the pipeline.

The invention discloses a pre-combustion chamber charge adjusting jet flow flame ignition combustion system, and relates to the technical field of internal combustion engines. The ignition device is arranged on an engine cylinder cover and can extend into the main combustion chamber, and a pre-combustion chamber and a charge adjusting valve are arranged on the ignition device; fuel can be fed into the pre-combustion chamber and the main combustion chamber. The injection end of the pre-combustion chamber extends into the main combustion chamber, and the charge regulating valve can be closed along with the increase of gas pressure in the main combustion chamber so as to separate the main combustion chamber from the pre-combustion chamber, and can also be opened under the action of gas pressure generated by combustion in the pre-combustion chamber so as to communicate the main combustion chamber with the pre-combustion chamber; according to the pre-combustion chamber charge adjusting jet flame ignition combustion system, the charge entering the pre-combustion chamber from the main combustion chamber is adjusted, ignition of the pre-combustion chamber is controlled, jet flame energy is improved, lean combustion of fuel and air is achieved in the main combustion chamber, the heat efficiency of an internal combustion engine is further improved, and NOx emission is reduced.

The application relates to the technical field of infrared stealth, precise thermal control and electromagnetic compatibility, and particularly discloses a film system structure with visible ultra-high reflectivity, middle-infrared and far-infrared low emissivity and microwave high permeability; the medium stack layer has high reflectivity to visible light; the metal microstructure layer has low emissivity to middle-infrared and far-infrared light and high permeability to microwaves; the film system structure has visible light reflectivity greater than 60%, middle-infrared and far-infrared light emissivity lower than 30% and microwave permeability higher than 60%. The application realizes perfect compatibility of infrared stealth and microwave absorption, keeps infrared low emissivity (epsilon < 0.1) and realizes high permeability (greater than 95%) to 1-18GHz microwave bands. The application solves the thermal failure problem of the composite stealth structure, realizes average visible light reflectivity (greater than 95%) through the medium stack layer, greatly reduces the solar heat load and improves the overall optical performance.

This invention discloses a high-efficiency, low-emission medical waste staged incineration device, relating to the field of medical waste incineration technology. It has the advantage of reducing flue gas emissions from the inlet. The key technical points are: it includes an incinerator, a discharge mechanism, a feeding mechanism, and an inlet mounted on the incinerator. The discharge mechanism is mounted on the incinerator and communicates with the inlet. The discharge mechanism is used to place waste, and a pusher plate is fitted on the discharge mechanism. The feeding mechanism is mounted on the discharge mechanism and is used to push the pusher plate to push the waste from the inlet into the incinerator. A sealing mechanism is fitted on the pusher plate to seal the inlet.

The application provides a glass with energy-saving and wireless communication frequency band enhancement functions, comprising periodically arranged FSS units, each of which comprises an infrared low emission layer, an air layer and a wave-transparent FSS layer, the infrared low emission layer comprising a first glass layer and a first dielectric substrate; the surface of the first glass layer is provided with a first etching layer; the first etching layer comprises a plurality of grid grooves; the wave-transparent FSS layer comprises a second glass layer, a second dielectric substrate and a third glass layer; the surface of the second glass layer is provided with a second etching layer; the second etching layer comprises an annular groove and a plurality of cut grooves arranged on the circumferential side of the annular groove; the surface of the third glass layer is provided with a third etching layer; and the third etching layer is provided with a second annular patch. The structure can realize the effects of wave-transparent communication frequency band and infrared low emission, has visible light transparency, meets certain thickness and is suitable for large-area paving.

The present disclosure provides a substrate assembly, a low emission implantation mask, and a method of implanting a substrate. The substrate assembly can include a substrate base and a low emission implantation mask disposed on the substrate base. The low emission implantation mask can include a carbon-containing material including carbon isotopes formed from 12 C isotopically purified carbon formed from carbon isotope precursors.

The invention provides an optimized circulating fluidized bed boiler flue gas denitration system, which belongs to the technical field of flue gas denitration, and comprises a boiler, a cyclone separator group, a preheater, a dust remover, an induced draft fan, a chimney, a material returning device, an air chamber, an injection system and a flue gas recirculation device, the cyclone separator group comprises a plurality of cyclone separators; the injection system comprises a static mixer, a first spray gun group and a second spray gun group; and the flue gas recirculation device comprises a recirculation fan and a primary fan. Based on the difference between the inlet and the outlet of the cyclone separator, the ultra-low emission requirement is met through SNCR (selective non-catalytic reduction) dynamic partition injection, flue gas recirculation variable load self-adaption and coal quality-denitration advanced linkage; the problem of NOx fluctuation under variable load and variable coal quality is solved.

The application discloses a 30# hard pitch flue gas low-toxicity risk characteristic fingerprint spectrum evaluation method and application. The application constructs a total ion flow chromatogram characteristic fingerprint spectrum of 30# hard pitch flue gas, the fingerprint spectrum comprises five characteristic peaks of 5-hydroxyvaleraldehyde acetate, alanine, 2,7-dimethyl-1-octanol, acetone and 3-ethyl-2-methylheptane, a to-be-tested pitch flue gas sample is collected, and whether the corresponding chromatographic peaks appear simultaneously is analyzed; if the corresponding chromatographic peaks appear simultaneously and the total peak area is greater than 30%, the pitch flue gas is determined as low risk. The low-toxicity characteristic fingerprint spectrum unique to 30# hard pitch is used as an evaluation benchmark, and scientific basis is provided for identification of low-emission pitch materials and health protection of construction personnel.

The application discloses a dry quenching emission gas SO2, dust and CO collaborative treatment device and method, relates to the field of environmental protection treatment engineering technology in the coking industry. The device comprises a desulfurizing agent supply system, a desulfurization and dust removal integrated equipment, a gas supplement and dust remover system, a preheater, a carbon monoxide catalytic reactor, a waste heat recovery system, a cooling fan and an induced draft fan and the like; after the emission gas is desulfurized and dust removed, the CO is diluted to a safe limit value by the gas supplement, enters the catalytic reactor after preheating, is oxidized into CO2 and releases heat, the high-temperature gas enters the waste heat recovery system to produce steam after heat exchange by the preheater, the cooling fan is started to pass in cooling gas to cool down when the temperature is too high, and is confirmed by an online monitoring system, and finally the gas is discharged up to the standard. The application realizes the collaborative and efficient removal of SO2, dust and CO, achieves the ultra-low emission requirement, recovers reaction heat, saves energy and reduces carbon, and is high in system safety, long in catalyst life and low in operation cost.

The application discloses a high-power pure-ammonia low-nitrogen combustor, which comprises a wind box, a first-stage air distribution air duct, a second-stage air distribution air duct, a third-stage air distribution air duct and a fourth-stage air distribution passage, a point ignition device is arranged in the first-stage air distribution air duct, and a tangential cyclone device is arranged in the fourth-stage air distribution passage; a central cyclone disc is fixedly connected to the front end of the first-stage air distribution air duct, a plurality of annularly-arranged first-stage ammonia fuel nozzles are arranged in the second-stage air distribution air duct, and the first-stage ammonia fuel nozzles are connected with first-stage ammonia fuel distribution rings through connecting pipes; a flue gas entrainment plate with a plurality of through holes is arranged at the front end of the third-stage air distribution air duct, and front ends of a plurality of second-stage tubular ammonia fuel injection guns pass through the flue gas entrainment plate; a plurality of third-stage ammonia fuel injection guns are arranged in the fourth-stage air distribution passage, and each tubular ammonia fuel injection gun is connected with a corresponding ammonia fuel distribution ring; a system cut-off valve and an adjusting valve are arranged on a conveying pipeline of each ammonia fuel distribution ring; the combustor can realize multiple-stage fuel grading and multiple-stage air distribution, and can realize stable combustion through self-entrainment and backflow of multi-stage high-temperature flue gas in a stable combustion area, so that stable combustion of ammonia fuel is realized and a low-NOx emission effect is achieved.

The application discloses an NH3-carbon-hydrogen fuel blending flame soot generation model and a prediction method based on a nitridation mechanism, and belongs to the technical field of combustion pollution control and numerical simulation. The application constructs a surface nitridation reaction population balance model containing NH3, NH2 and HCN double reaction paths on the basis of a traditional HACA soot model, determines reaction rate constants through molecular dynamics and quantum chemistry calculation, and clearly defines the core hypothesis that inertization of nitrogen-containing functional groups permanently blocks HACA growth. The model is solved by using a shadow projection method and is coupled with an OPPDIF flame solver to realize accurate prediction of soot generation in an ammonia-doped flame. The application can accurately distinguish between chemical soot suppression and dilution effect of ammonia, significantly improves the prediction accuracy of soot volume fraction and particle size, reveals the double-phase soot suppression mechanism of the gas phase surface, and is suitable for soot emission prediction and low-emission design of ammonia-doped combustion equipment such as gas turbines, internal combustion engines and ship propulsion.

To provide semiconductor devices with low wiring resistance and high transmittance. The objective is to provide a semiconductor device with a high aperture ratio. [Solution] The gate electrode, semiconductor layer, source electrode or drain electrode are made of a light-transmitting material. Formed using a light-transmitting material, the resistivity of the gate wiring or source wiring is lower than that of the light-transmitting material. It shall be made of low-cost material. In addition, source wiring and / or gate wiring shall be made of a light-transmitting material. A material with lower resistivity than the light-transmitting material is laminated to provide this. This allows us to provide semiconductor devices with low emission and high transmittance.

The invention discloses a methanol generator intelligent operation optimization method based on deep reinforcement learning. The method comprises the following steps: acquiring operation data of a methanol generator, and executing data cleaning and time synchronization; running the state coding network and the action coding network to generate a joint embedded feature set; constructing an improved REDQ intelligent optimization structure based on the joint embedded feature set; establishing an offline and online mixed experience playback buffer; calling the improved REDQ intelligent optimization structure to execute strategy training and parameter updating; a strategy reasoning process is carried out, a control parameter set is generated and issued to a control execution module, and an operation feedback data set is collected; and calculating an operation performance index set based on the operation feedback data set, and dynamically updating the optimization parameter set to complete intelligent operation optimization closed loop. According to the invention, efficient, safe and low-emission operation of the methanol generator is realized.

The utility model discloses a low emission acoustic magnetic decoder, include: alternating current source, drive circuit and first coil, alternating current source is used to provide alternating voltage, first coil and drive circuit all are connected with alternating current source, and first coil forms series connection with drive circuit, and drive circuit is based on first control signal control first coil and alternating current source form closed loop, and through alternating voltage generates the peak value of alternating current and adjusts alternating current, and first coil is based on alternating current and generates alternating magnetic field to deactivate acoustic magnetic EAS label or mark. The utility model discloses a low emission acoustic magnetic decoder, through forming the series connection of alternating current source, drive circuit and first coil, can use 50Hz to 200Hz's low deactivation frequency's attenuation amplitude alternating magnetic field to deactivate label or mark, in the deactivation process, reduce the exposure of human body to electromagnetic field to the level that conforms to the human body electromagnetic field exposure limit that each regulatory agency makes, increasingly strict, has low emission, low radiation's characteristics.