39 results about "Electrode corrosion" patented technology

The invention relates to the field of electrochemical energy storage, in particular to an aqueous zinc battery diaphragm based on mesoporous MOF and a preparation method and application thereof. The aqueous zinc battery diaphragm based on the mesoporous MOF has the capabilities of lightening and thinning, high wettability of an aqueous electrolyte, strong liquid retention, promotion of ion desolvation, acceleration of ion transmission and the like, is beneficial to realizing high utilization rate of a zinc negative electrode, and improves weight and volume energy density, rapid charge and discharge performance and long service life of an aqueous zinc battery; the obtained aqueous zinc battery diaphragm based on the mesoporous MOF is low in cost, and the battery cost can be effectively reduced; according to the invention, a mesoporous UIO-66 MOF functional group is used for regulating and controlling an ion coordination environment, pore channels bind water molecules to reduce water activity, an additive is cooperated for corrosion inhibition, corrosion of zinc dendrites and an electrode is accurately inhibited, interface compatibility is optimized, the problems of dendrites, corrosion, side reactions and the like in a water-based battery are effectively solved, and the service life of the water-based battery is prolonged. Therefore, the rate capability and the cycling stability of the battery are remarkably improved.

The invention relates to the field of flow metering, in particular to a mine electromagnetic flowmeter which comprises a shell, a lining and an electrode, the lining is arranged in the shell, the electrode is rotatably mounted in the lining, a water storage cavity is formed in the shell, a water spraying opening communicated with the water storage cavity is formed in the lining, the water spraying opening faces the electrode, and the water spraying opening is communicated with the water storage cavity. And the water storage cavity is connected with an energy storage device. The electrode is driven to rotate by flowing water flow in a pipeline, so that multiple sides of the electrode can be flushed by the water flow, energy and water are stored by water pressure, stored energy is released when the water flow stops, and water is drained and stored through the released energy to flush dirt remaining on the electrode, so that the scaling speed of the electrode is slowed down, and the cleaning frequency of the electrode is reduced; the problems that the electrode scaling speed of the mine electromagnetic flowmeter is high, the electrode cleaning period is frequent, electrode abrasion is accelerated, the electrode corrosion rate is increased, and the service life of the mine electromagnetic flowmeter and the electrode measurement accuracy are affected are solved.

The invention discloses an extra-high voltage direct current grounding electrode corrosion hidden danger early warning method, device and equipment and a medium, and relates to the technical field of electric power system grounding electrode corrosion monitoring. The method comprises the following steps: acquiring operation parameters and environmental parameters of the extra-high voltage direct current grounding electrode in real time and preprocessing the parameters to obtain standardized data; wherein the operation parameters at least comprise at least one of a decay time constant and grounding resistance; constructing a corrosion prediction model based on the convolutional neural network, and inputting the standardized data to obtain a corrosion development trend prediction result of the grounding electrode; and performing time sequence analysis on the corrosion development trend prediction result to identify an abnormal change mode in the grounding electrode corrosion process, and generating and outputting graded early warning information based on the corrosion development trend prediction result and the abnormal change mode. According to the technical scheme, the problems that traditional manual inspection lags behind, an existing monitoring means lacks a prediction function and the like are solved, and early warning and fine management of corrosion risks are achieved.

The application belongs to the technical field of aqueous zinc ion batteries, and specifically discloses an aqueous zinc ion battery electrolyte additive, an electrolyte and application thereof. The application provides application of a compound as shown in structure (I) as an electrolyte additive in an aqueous zinc ion battery, wherein R + represents one or more of H + , Na + and K + . The compound as an electrolyte additive in the aqueous zinc ion battery can improve the interface environment between the electrolyte and the zinc negative electrode, promote uniform distribution of an electric field and a zinc ion concentration field, reduce nucleation potential, and make the zinc deposition process more uniform. The compound can effectively solve the problems of zinc dendrite growth, zinc negative electrode corrosion and surface passivation, effectively reduce the consumption of the electrolyte, improve the utilization rate of zinc, and thus improve the rate performance and cycle performance of the aqueous zinc ion battery.

The invention relates to an integrated non-alkaline gel zinc air battery and a preparation method thereof, and belongs to the technical field of zinc air batteries. The battery comprises a zinc negative electrode, an air positive electrode, a gel electrolyte and a packaging body, and the gel electrolyte is formed by in-situ gelation of a liquid precursor containing a non-alkaline zinc salt solution and a gelling agent in the packaging body, so that an integrated close contact structure is formed between the electrodes and the electrolyte. According to the invention, the problems of easy carbonation failure and electrode corrosion of the traditional alkaline electrolyte are solved through a non-alkaline system, and the long-term stability and cycle life of the battery in the air are obviously improved and prolonged. Meanwhile, the process of combining liquid perfusion and in-situ gelation solves the problems of poor interface contact of the solid electrolyte and easy leakage of the liquid electrolyte, and realizes low interface impedance and high ion transmission efficiency. The method is simple in process, does not need a cross-linking agent, can be completed through the steps of heating, stirring and cooling, is suitable for large-scale production, and has high safety and excellent electrochemical performance.

The invention provides an anti-interference broadband load, a preparation method and a circuit system, the anti-interference broadband load comprises an outer conductor, an inner conductor and a load sheet, the inner conductor is arranged in the outer conductor, one end is communicated with the outside, and the other end is provided with a slot; and the load sheet is also arranged in the outer conductor and comprises a circuit substrate, a resistive film, a grounding electrode and a butt joint electrode, the butt joint electrode can be inserted into the slot, the resistive film is in contact with the butt joint electrode, and the grounding electrode is connected with the circuit substrate and the outer conductor to be grounded. Through accurate design and stable connection of the three components, a closed microwave energy absorption system is constructed, exposure of a load sheet is avoided, resistance value drift caused by resistance film oxidation and electrode corrosion can be prevented, and the outer conductor can shield electromagnetic interference and ensure accurate energy absorption; the relative positions of all the structures are accurate, and impedance matching abnormity and linear distortion are avoided; meanwhile, the absorption precision is improved, the problem that the precision of an exposed structure is insufficient is solved, wide-band high-performance, high-stability and high-precision work is achieved, and adaptability, practicability and reliability are high.

This application relates to the field of conductivity measurement technology, specifically to a non-contact conductivity measurement device. It includes a measurement unit, a signal processing unit, a temperature compensation unit, a power supply unit, and a sample container. The measurement unit includes a solenoid, a resistor, and a capacitor connected in series to form an RLC circuit module. The signal processing unit includes an analog-to-digital converter (ADC) and a processor, with the processor connected to the measurement unit via the ADC. The temperature compensation unit is connected to the processor and used to monitor the ambient temperature. The power supply unit is connected to the measurement unit, the signal processing unit, and the temperature compensation unit. The sample container is arranged at intervals between the measurement unit and the sample container and is used to hold reference samples. This application enables non-contact conductivity measurement, avoiding the electrode corrosion and cleaning problems inherent in contact measurements.

The invention relates to the technical field of batteries, and discloses a nickel-zinc battery gel electrolyte capable of improving high-temperature performance and a battery preparation method, which comprises the following steps: mixing a monomer mixed solution containing potassium acrylate, polyethylene glycol methyl ether methacrylate, a cross-linking agent and an initiator with a mixed alkali solution system to prepare a pre-polymerized solution; assembling the positive plate, the negative plate and the diaphragm, and injecting the prepolymerization liquid; and heating to initiate in-situ polymerization to form the gel electrolyte. The functional monomer PMEM is introduced to construct a three-dimensional polymer network with a flexible polyether side chain together with KAA, the network structure effectively binds water molecules, and side reactions such as positive electrode material structure collapse, oxygen evolution and zinc negative electrode corrosion caused by too high activity of the water molecules at high temperature are inhibited; meanwhile, PMEM ether oxygen atoms slow down diffusion and dissolution of the zinc negative electrode in the storage process; according to the prepared nickel-zinc battery, the high-temperature cycle life, the high-temperature floating charge life and the high-temperature charge retention rate are improved, and the problem that an existing nickel-zinc battery is poor in high-temperature performance is solved.

The invention discloses an electrolyte containing an imidazolyl compound as well as a preparation method and application of the electrolyte. The invention provides an electrolyte containing an imidazolyl compound, which comprises the following components in percentage by mass: 15-20% of lithium salt, 1-3% of imidazolyl compound, 0.5-1% of sulfur additive, 0.2-0.5% of carbonic ester additive, 0.5-1% of lithium salt additive and the balance of organic solvent. Multifunctional protection is achieved through the synergistic effect of imidazole rings and carboxylic ester groups in molecules; uniform and compact low-impedance CEI / SEI double-interface films can be formed on the surfaces of the positive electrode and the negative electrode respectively, and continuous decomposition of an electrolyte and non-uniform Li < + > embedding are reduced; the electrolyte can be used as an electrolyte, HF generated by hydrolysis of LiPF6 in the electrolyte can be efficiently removed by virtue of alkalescence of nitrogen atoms of an imidazole ring, electrolyte acidification and electrode corrosion are inhibited, and meanwhile, positive electrode metal dissolution is remarkably reduced by virtue of coordination of the nitrogen atoms and transition metal ions such as Ni < 2 + >, Co < 3 + > and Mn < 4 + >, so that the stable electrode structure is maintained.

The invention relates to the technical field of fused salt energy storage, and provides an electrode type fused salt heating device, which comprises a first fused salt pond, a second fused salt pond and a heating device, the second molten salt pond is used for storing the heated molten salt; the fused salt heating pipe is connected between the first fused salt pond and the second fused salt pond, and the fused salt heating pipe is connected with the heating electrode; the third molten salt pond is used for mixing the cold salt and the heated molten salt to form molten salt to be heated; the first conveying pipe is communicated with the third molten salt pond and is used for conveying cold salt into the third molten salt pond; the second conveying pipe is communicated with the second molten salt pond and the third molten salt pond and is used for conveying the heated molten salt into the third molten salt pond; and the third conveying pipe is communicated with the first molten salt pond and the third molten salt pond and is used for conveying the molten salt to be heated to the first molten salt pond. According to the technical scheme, the problems of local overheating, fused salt overtemperature decomposition and high electrode corrosion rate in related technologies can be effectively solved.

The invention discloses a wide-temperature-range wide-voltage eutectic gel electrolyte for a zinc ion battery as well as a preparation method and application of the eutectic gel electrolyte, and belongs to the field of zinc ion battery electrolytes. Zinc salt and ethylene glycol are blended to form a deep eutectic solution to dissolve polyvinyl alcohol, and the eutectic gel electrolyte is prepared through a freeze-thaw method. According to the gel electrolyte, under the conditions that an aqueous solution is not introduced to dissolve the polyvinyl alcohol and the gel electrolyte does not need to be soaked in an aqueous electrolyte, the freezing point of the gel electrolyte is effectively reduced, and adverse side reactions such as hydrogen evolution, zinc negative electrode corrosion and dendritic crystal growth induced by active water molecules are inhibited. The eutectic gel electrolyte has the characteristics of wide voltage window and wide temperature range, when the eutectic gel electrolyte is used for the zinc ion battery, the stability of a zinc negative electrode can be improved, the working voltage (2.6 V) of the zinc ion battery is widened, and the normal use of the zinc ion battery at the ultralow temperature (-80 DEG C and below) is met.

The utility model discloses a kind of self-cleaning dry-type electrostatic precipitators, including shell, the inside transverse of shell is passed through and is provided with dust collecting electrode, several corona poles are longitudinally arranged between the dust collecting electrode, the upper and lower ends of the shell are respectively provided with exhaust pipe, air inlet pipe and dust removal port, driving slide rail is symmetrically arranged on the inner wall of the shell, symmetrically slidingly connected with mounting seat between the driving slide rail, lifting mechanism is arranged on the mounting seat, the upper end of the lifting mechanism is provided with scraping assembly for cleaning the surface of the dust collecting electrode. The utility model is simple in structure, reasonable in design, dust particles on the surface of dust collecting electrode are cleaned by scraping, compared with mechanical vibration, secondary dust raising will not be produced, and the cleaning of dust with strong viscosity is also more thorough, can effectively prevent the generation of stubborn dust, effectively improve dust removal efficiency, avoid the occurrence of electrode corrosion and the like.

The invention relates to the technical field of lithium ion batteries, in particular to a lithium ion battery ferrous oxalate composite material and a preparation method thereof. Carrying out cold separation on the ferrous sulfate solution to obtain ferrous sulfate heptahydrate crystals, and dissolving after centrifugal dewatering; the raw material utilization rate and purity are improved, impurities such as oil stains, silicon fibers, heavy metal and zinc salt are removed through the alkali washing and acidification purification process of the zinc smelting secondary iron powder, the purity of the final ferrous oxalate product is improved, and the negative influence of the impurities on the electrochemical performance is reduced; the ferrous sulfate cold separation crystallization and multi-stage washing process reduces sulfate radical residues, electrode corrosion caused by sulfate radicals is avoided, inert gas protection is adopted in the whole process, ferrous oxalate is prevented from being oxidized, and washing wastewater can be recycled after being simply treated.

The invention discloses an intelligent optimization control method for the electrode life of a supercapacitor, relates to the technical field of electrode life, and is used for solving the problems of low charging efficiency and shortened electrode life. Before ocean buoy data is reported, setting an evaluation period, accessing an environment database to obtain working temperature data of the capacitor, and counting the temperature cycle times; the method comprises the following steps: acquiring a reporting period through a data reporting record table, adjusting a reporting strategy according to a temperature cycle index, simultaneously detecting peak discharge current and equivalent series resistance, comprehensively evaluating an electrode corrosion level, switching a communication mode according to the corrosion level, and monitoring a capacitance value to judge whether to trigger a charging optimization mode, the pulse amplitude and frequency of the wave-activated generator are monitored, the capacitor charging mode is adjusted, real-time optimization of data reporting and charging strategies is achieved, and the service life of the capacitor is prolonged.

This invention discloses a deep learning-based method for predicting the corrosion rate of high-entropy alloy anodes at low temperatures. The steps include: collecting and preprocessing corrosion experimental data of high-entropy alloy anodes in a low-temperature environment; constructing a feedforward neural network to predict the corrosion rate; compiling the model using the Adam optimizer and determining the learning rate through Bayesian optimization; training the model using the training set and monitoring generalization ability with the help of early stopping mechanisms and validation sets; evaluating model performance on the test set; analyzing feature importance based on the weight matrices of the input layer and the first hidden layer; saving the model for prediction of new samples; and selecting corrosion-resistant high-entropy alloy composition combinations based on the prediction results and feature importance. This invention employs Bayesian optimization of hyperparameters, combined with a multi-layer network structure, regularization, and Dropout mechanisms to fully explore the nonlinear coupling relationship between material composition and environmental characteristics, significantly improving the accuracy of corrosion rate prediction under low-temperature conditions and providing data decision support for the design and optimization of high-entropy alloy anode materials.

The invention discloses a composite hydrometer capable of remotely transmitting signals, belongs to the technical field of solution density detection, and solves the problems that a traditional hydrometer needs manual reading and cannot automatically transmit data, and an electrode is easy to corrode and the precision needs to be frequently corrected in a conductivity measurement method. According to the technical scheme, a first floating unit and a second floating unit are sleeved in a sliding mode to form a combined body, and the ratios of the weights to the cross sectional areas are different; a sensing unit is arranged to detect the height difference or variable quantity of the two floating units caused by liquid density change, and converts the height difference or variable quantity into an electric signal or an optical signal; and the signal processing unit receives the signal and calculates the liquid density or the variable quantity according to the ratio, and the hydrometer realizes real-time remote transmission of measured data through a combination body with a specific shape and structure, and is suitable for various liquid density measurement scenes.

The utility model provides a fuel cell diaphragm type humidifier with a tooth-shaped baffle structure. The fuel cell diaphragm type humidifier comprises a shell, a diaphragm stack and four end covers, closing plates are arranged on two opposite surfaces of the shell, and end covers are arranged on the other four surfaces; the membrane stack is composed of alternately arranged membranes, a fluid circulation gap is formed between every two adjacent membranes, and the stacking direction is perpendicular to the sealing plate. A tooth-shaped baffle is integrally formed on the inner side of the wet side inlet end cover, the length is the same as the width of the inner side of the end cover, and the width is smaller than the distance between the end cover and the membrane stack. According to the scheme, airflow is forcibly dispersed through the tooth-shaped baffle, gas distribution uniformity is improved, local flow concentration is avoided, humidification efficiency and fuel cell humidity environment uniformity are improved, and electrode corrosion and membrane damage are reduced; the tooth-shaped baffle and the end cover are integrally formed, so that the production cost is reduced; after the airflow path is optimized, the fuel cell is more stable in performance, assembly loss is reduced, and the overall service life of equipment is prolonged. The humidifier has the advantages of high efficiency, compact structure and economical efficiency, and is suitable for a fuel cell system.

The invention provides an electrode-corrosion-resistant perovskite solar cell, a preparation method and a photoelectric device, and the perovskite solar cell is characterized in that a buffer layer is arranged between a perovskite layer and an electron transmission layer of the perovskite solar cell; and the composition material of the buffer layer comprises an ion covalent organic framework material. The ion covalent organic framework material has very strong adsorption capacity on I2 and can inhibit corrosion of a metal electrode in a perovskite battery, and moreover, the whole ion covalent organic framework material contains high-density imine and triazine and can provide a large number of binding sites for I2; in addition, the affinity between the long-chain alkyl quaternary ammonium salt group and I2 molecules can be further improved by introducing the long-chain alkyl quaternary ammonium salt group; in addition, passivation groups in the ionic covalent organic framework material can passivate Pb < 2 + > defects, so that the quality and the efficiency of the perovskite solar cell are improved.

The present disclosure belongs to the technical field of hydrogen production by water electrolysis, and provides a hydrogen evolution electrode damage quantification and positioning method based on a reverse voltage plateau period, wherein the quantification method comprises: determining an electrolytic tank shutdown event and synchronously collecting electrolytic tank parameter data; based on the electrolytic tank parameter data, extracting single-cell characteristic parameters of a mixed potential plateau period; constructing an electrode damage equivalent model, and inputting the characteristic parameters to calculate single-cell damage equivalents. The present disclosure proposes and establishes a quantitative mapping relationship between the "reverse voltage plateau duration T" and the "electrode corrosion damage amount", and realizes online, quantitative and spatial positioning evaluation of internal damage of an alkaline electrolytic tank based on the same.

The invention discloses a bio-based electrolyte additive, a preparation method and application, the bio-based electrolyte additive is N-(3-indoleethyl)-5-oxopyrrolidine-2, 3-dicarboxylic acid, the raw material of the additive is derived from renewable biomass resources, a tryptophan precursor can be derived from microbial metabolism of natural tryptophan, and the tryptophan precursor can be derived from natural tryptophan. The trans-aconitic acid can be directly extracted from plants such as aconite, and the N-(3-indoleethyl)-5-oxopyrrolidine-2, 3-dicarboxylic acid is synthesized through two green and renewable bio-based raw materials. As an electrolyte additive of a water-based zinc battery, the tryptamine-trans-aconitic acid composite electrolyte fuses interface adsorption of tryptamine and ion coordination capability of trans-aconitic acid, synergistically constructs a stable electrode-electrolyte interface, can synergistically inhibit side reactions such as growth of zinc dendrites and hydrogen evolution, significantly alleviates zinc negative electrode corrosion, realizes a long-cycle-life water-based zinc battery, and has a wide application prospect. The cycle life of the aqueous zinc battery reaches 2500 hours.

This invention provides a polyacrylamide gel electrolyte for use in a portable three-electrode corrosion sensor for monitoring metal corrosion in the atmosphere, and a method for manufacturing the same. [Solution] The polyacrylamide gel electrolyte 5 is obtained by radical polymerization of acrylamide monomer, initiator, crosslinking agent, and glycerin under aqueous phase conditions and oxygen-free conditions. The polyacrylamide gel electrolyte obtained in this way exhibits excellent moisturizing properties due to the presence of glycerin, and can be stored stably at room temperature and used effectively, making it suitable for long-term monitoring of the corrosion status of metal materials.

This invention provides a biomass composite separator with dehydration and corrosion resistance functions, its preparation method, and a lithium-ion battery. Specifically, it relates to the field of lithium-ion battery materials. The biomass composite separator includes a base film and a functional coating, the latter containing biomass hydroxyl-rich materials and basic functional group materials. This invention utilizes the water-absorbing properties of biomass hydroxyl-rich materials and the neutralization effect of basic functional groups on hydrofluoric acid to efficiently remove moisture from the battery cell, neutralize hydrofluoric acid, and inhibit electrode corrosion and gas generation. Simultaneously, it is environmentally friendly, produces a stable film, and significantly improves the cycle life and safety of lithium-ion batteries, making it suitable for new energy vehicles, energy storage, and other fields.

The invention discloses a single-ion gel electrolyte with a semi-interpenetrating network structure and a preparation method of the single-ion gel electrolyte. According to the electrolyte, a natural macromolecular sulfonated product is used as a fixed anion carrier, ZnO is used as a zinc ion source, a semi-interpenetrating network structure is constructed, and unification of high cation concentration, low corrosivity, high mechanical strength and excellent ionic conductivity is achieved. The flexible zinc ion battery is prepared in an in-situ polymerization manner, is simple in process and is suitable for the flexible zinc ion battery. The problems of small cation introduction amount, serious electrode corrosion, poor mechanical property and the like in the traditional single-ion electrolyte are effectively solved, and the single-ion electrolyte has a wide application prospect.

The application relates to air volatile organic compound content detection equipment and belongs to the volatile organic compound detection field. The equipment comprises a box body, a base and a detection device, the base is fixedly installed at the bottom of the box body, the detection device is arranged in the box body, a shell is fixedly installed on the outer wall of the box body, an electric heating pipe is fixedly connected in the shell, the electric heating pipe is arranged in a snakelike mode and surrounds the outside of the box body. The filter screen and the drying agent arranged at the air inlet end can efficiently filter dust and remove water vapor, PID sensor zero point drift, electrode corrosion and failure in the detection device caused by high humidity environment are avoided, detection data accuracy and long-term stability are obviously improved, the reverse exhaust of the piston drives airflow to flow through the drying agent in a reverse direction, the electric heating pipe is used for heating and drying, the drying agent is automatically regenerated and recycled after water absorption saturation, manual disassembly and replacement are not needed, operation and maintenance cost is reduced, and the equipment is suitable for long-term unattended, random start-stop sampling and inspection scenes.

The application discloses a method for preparing chiral secondary alcohol through alternating current catalytic asymmetric electrophilic cross-coupling reaction. The method comprises the following steps: mixing azafused aryl triflate, aldehyde, electrolyte, nickel catalyst, ligand and sacrificial agent in a solvent in a protective atmosphere, and then carrying out asymmetric electrophilic cross-coupling reaction under alternating current condition, and then carrying out post-treatment to obtain the chiral secondary alcohol compound. The asymmetric cross-coupling reaction of azafused aryl triflate and aldehyde substrate is catalyzed by alternating current, and the asymmetric cross-coupling of various aryl (class) halides and aldehydes can be realized; the alternating current is used to improve the mass transfer efficiency, reduce the electrode corrosion and inhibit the reduction hydrogenation. In addition, the synthesis product can be used as a chiral ligand, and the practicability of the product in asymmetric catalysis is proved, and the product has wide development prospect. The electrochemical synthesis method has the characteristics of mild reaction condition, cleanness and greenness and simple reaction operation.

A water-based rechargeable zinc-manganese battery with added montmorillonite quasi-solid electrolyte, comprising a positive electrode, a negative electrode, a separator and an electrolyte, wherein the electrolyte is a montmorillonite quasi-solid electrolyte, and the montmorillonite quasi-solid electrolyte is a gel-like electrolyte formed by uniformly stirring montmorillonite powder in a zinc salt aqueous solution. The preparation method of the water-based rechargeable zinc-manganese battery comprises the following steps: (1) preparing a montmorillonite quasi-solid electrolyte: dispersing montmorillonite powder in a zinc salt aqueous solution, and uniformly stirring to form a gel-like electrolyte; (2) preparing a positive electrode; (3) preparing a negative electrode; (4) sequentially stacking the prepared positive electrode, negative electrode and separator, injecting the montmorillonite quasi-solid electrolyte, and packaging into a battery. The montmorillonite-based quasi-solid electrolyte can effectively inhibit zinc dendrite growth, reduce hydrogen evolution reaction, improve rate performance, and effectively inhibit zinc negative electrode corrosion, and has the advantages of low cost, simple preparation process, good safety performance and the like, and is suitable for large-scale energy storage.

The application discloses a kind of drying device for silt and its use method, belong to silt processing technical field.The device includes network electricity, rectifier filter circuit, DC-DC converter, DSP processor, single-chip microcomputer control system, PWM amplification circuit, full-bridge inverter circuit and electrode.Network electricity is converted into direct current by rectifier filtering, and voltage conversion is carried out by DC-DC converter;DSP processor evaluates silt state and generates pulse signal, and single-chip microcomputer generates PWM signal, which is amplified to drive full-bridge inverter circuit to convert direct current into bipolar pulse voltage output to electrode, forming alternating electric field.Use method includes placing silt between electrodes, starting device, detecting humidity, optimizing tracking optimal drying point by resistivity-frequency closed loop, accelerating moisture migration, until resistivity is greater than 200Ω·m and humidity reaches 40% to complete drying.The device has the characteristics of low energy consumption, high efficiency, accurate control and no electrode corrosion.

The application belongs to the field of metal material processing, and provides a high-age hardening response corrosion-resistant magnesium alloy and a preparation method thereof.The magnesium alloy comprises, in percentage by mass, Al: 0.5-3.0%, Y: 0.1-1.5%, Ca: 0.05-0.8%, an additive element: 0-0.8%, inevitable impurities: ≤0.05%, and the balance of Mg; the additive element is one or any combination of Ce, Sm and In; and the preparation method comprises alloy smelting, pouring or casting rolling, homogenization heat treatment, multi-pass rolling, solid solution heat treatment and artificial aging.The application can control the solute atom segregation behavior in the magnesium alloy, control the second phase and its metastable state composition, size, quantity and distribution, reduce the micro-electrode corrosion, improve the film passivation ability, significantly improve the corrosion resistance, and improve the age hardening response so that the alloy has good mechanical properties.

The invention discloses a method, a device and equipment for improving weather resistance of a capacitive electric field sensor and a medium, and belongs to the technical field of sensors, and the method comprises the following steps: preparing a main electrode of the capacitive electric field sensor by adopting a carbon nanotube and graphene composite material; establishing a pre-calibration mathematical model for describing the change of the capacitance value of the main electrode along with the environmental parameters; during operation of the capacitive electric field sensor, excitation signals containing a plurality of discrete frequencies are applied to a main electrode, and real-time capacitance values and real-time environmental parameters of the main electrode are periodically collected; calculating an expected capacitance value based on the pre-calibration mathematical model to generate a correction factor; and dynamically compensating the real-time capacitance value through the correction factor. According to the method, the problem of performance degradation caused by electrode corrosion and capacitance drift of a traditional sensor in a severe environment is fundamentally solved, the measurement precision, long-term stability and environmental adaptability of the sensor are remarkably improved, meanwhile, the system structure is simplified, and cost and maintenance requirements are reduced.

The utility model discloses hydrogen preparation equipment, and relates to the technical field of hydrogen preparation equipment, the hydrogen preparation equipment comprises an electrolytic bath, a heating device, a hydrogen collection pipe and a cooling structure, the electrolytic bath is filled with electrolyte, the heating device is installed in the electrolytic bath, and the hydrogen collection pipe is connected with the cooling structure. The heating structure is arranged at one side end of the electrolytic bath in the horizontal direction and used for heating electrolyte in the electrolytic bath, the hydrogen collecting pipe is arranged at one side end of the electrolytic bath in the horizontal direction and used for conveying hydrogen, and the cooling structure is arranged in the electrolytic bath and used for cooling the electrolyte in the electrolytic bath. And temperature fluctuation is avoided through linkage control of heating and cooling by adjusting the electrolyte in the electrolytic bath to the preset temperature together with the heating device, so that electrode corrosion accelerated by high temperature or electrolyte decomposition is prevented, reaction rate reduction caused by low temperature is avoided, and high-concentration hydrogen is prevented from exploding at high temperature.