59 results about "Hydrogen bubble" patented technology

The invention provides an acoustic coalescence elimination method for hydrogen bubbles in molten aluminum, and belongs to the technical field of molten aluminum bubble elimination. According to the method, sound field collaborative focusing is achieved by arranging a phase control array transducer set in a molten aluminum smelting furnace, primary gathered sound waves and efficient coalescence sound waves are applied in stages according to bubble size evolution in a double-frequency scanning mode, and the hydrogen bubbles in the molten aluminum are eliminated. A target frequency is dynamically adjusted in combination with a bubble resonance frequency optimization model to match the inherent frequency of a bubble, a sound-bubble coupling dynamic tracking system is used for monitoring bubble evolution triggering stage switching in real time, and a sound field focus point dynamically scans and covers a three-dimensional space area through phase delay control. A delay detection method is adopted to eliminate cavitation bubble interference and accurately measure the hydrogen content, sound intensity and frequency parameters are optimized according to a sound field parameter self-adaptive regulation and control model, and the technical problem that hydrogen bubbles in a molten aluminum deep area are difficult to be effectively driven by sound waves and cannot be fully coalesced and eliminated is solved.

The invention discloses a follow-up PIV boundary layer flow field test system and test method based on electrolytic hydrogen bubbles. The follow-up PIV boundary layer flow field test system comprises an integrated optical measurement module and a tracer particle generation module, the optical measurement module is arranged in the UUV and comprises a laser transmitter assembly, a sapphire prism and two imaging cameras which are symmetrically arranged, and laser sheet light forms a sheet light area on the outer surface of the UUV after being refracted by the sapphire prism; the tracer particle generation module comprises a cathode, an anode and a power supply unit, the cathode is a platinum wire array composed of a plurality of platinum wires arranged in the axial direction of the UUV, and the platinum wires are located at different heights away from the wall face of the UUV; the power supply unit selectively electrifies the platinum wire, independently adjusts the voltage, controls the number and frequency of generated hydrogen bubbles, and achieves the synchronous measurement of flow field information at different thickness positions of a boundary layer. According to the invention, boundary layer flow field in-situ follow-up measurement and synchronous fine measurement of different thickness positions under the condition of not changing the UUV shape are realized, and the device has the advantages of high integration level, small flow field disturbance, high measurement efficiency and the like.

The invention belongs to the technical field of underground hydrogen storage, and particularly relates to a method for improving underground hydrogen storage capacity by stabilizing hydrogen foam through a porous carbon material, which comprises the following steps: step 1, preparing a hydrophobic modified porous carbon material: preparing the porous carbon material by using biomass waste as a raw material through a carbonization-activation process; carrying out hydrophobic modification treatment on the porous carbon material to enable the water contact angle of the material to reach more than 90 degrees; step 2, preparing a surfactant solution; step 3, preparing a porous carbon-surfactant composite system; and fourthly, hydrogen foam is generated and injected, wherein hydrogen and the porous carbon-surfactant composite system are fully mixed according to the gas-liquid volume ratio of 1: 1-10: 1, and then the mixture is injected into the stratum. By means of the method, the stability of hydrogen foam can be remarkably improved, the hydrogen storage efficiency and the hydrogen recovery rate are improved, and therefore the underground hydrogen storage amount is greatly increased.

The clothes treatment equipment comprises a barrel assembly, a water way and an electrolysis device, the electrolysis device comprises an anode and a cathode, the anode and the cathode are both arranged on the water way, and the surface of the anode is provided with a boron-doped diamond coating; and the surface of the cathode is provided with a boron-doped diamond coating. According to the embodiment of the invention, the electrode potential of the anode is relatively high, so that the generation of O2 by-products can be inhibited to a certain extent, more oxygen active substances are generated, the generation proportion of active oxygen products is increased, and the sterilization, disinfection and dye cross color prevention effects of the clothes treatment equipment are improved; the cathode can generate more hydrogen peroxide, the generation of hydrogen microbubbles is inhibited to a certain extent, and the generation ratio of hydrogen is reduced; in addition, the hydrogen embrittlement risk caused by hydrogen bubbles to other metal materials can be reduced.

The application discloses a Mo-Ni bimetallic denitration catalyst and a preparation method thereof, and relates to the technical field of denitration agents, and the preparation method comprises the following steps: firstly, a nickel source, a molybdenum source and an aluminum source are smelted and crushed to obtain a Ni-Mo-Al ternary alloy powder; then, the Ni-Mo-Al ternary alloy powder is added into a mixed alkaline leaching solution containing alkali metal hydroxide, a surfactant and hydrophobic conductive micro powder to perform a dealuminization reaction; hydrogen bubbles generated in-situ by the reaction are used as soft templates, and the hydrophobic conductive micro powder is adsorbed on the bubble interface and assembled in the skeleton through Pickering effect; finally, the catalyst is obtained through washing and drying; the catalyst prepared by the application has a large pore structure with conductive micro powder distributed on the inner wall; the unique structure not only reduces the mass transfer resistance, constructs an electron transmission channel, but also promotes the discharge of product nitrogen through a local hydrophobic environment, and significantly improves the catalytic activity and nitrogen selectivity when treating nitrate-containing wastewater.

The invention relates to the technical field of hydrogen bubble water preparation devices, in particular to a device and method for generating nanometer hydrogen bubble water by electrolyzing water. The device comprises a rack, and a water inlet adjusting pipe, a Venturi pipe, a flow guide pipe and a Tesla valve are sequentially fixed to the rack from left to right; the interiors of the water inlet adjusting pipe, the Venturi pipe, the flow guide pipe and the Tesla valve are communicated to form a continuous flow path, one end of the water inlet adjusting pipe is provided with a plurality of adjusting pieces which extend to an inlet of the Venturi pipe and jointly define a variable water outlet part, and the multiple adjusting pieces can be driven by a first driving mechanism to synchronously perform radial expansion and contraction movement; according to the invention, through the arrangement of the complete and progressive treatment procedures of dynamic Venturi effect primary crushing, linkage mechanical stirring secondary crushing, high-speed shearing nanocrystallization and Tesla valve collision homogenization, the concentration of hydrogen in the finally generated nano hydrogen bubbles is obviously improved; the average particle size of generated bubbles is smaller, and the particle size distribution range is more concentrated.

The invention provides an anionic membrane AEM electrolytic bath with an asymmetric structure, and belongs to the field of structural design of alkaline membrane electrolytic baths. The anode side of the electrolytic cell adopts a rigid net as a gas diffusion layer, and the cathode side adopts an elastic net as a gas diffusion layer. According to the electrolytic cell, the asymmetric rigid net and the elastic net are adopted as gas diffusion layers, and a groove flow channel structure is omitted, so that on one hand, the porosity in the electrolytic cell can be increased, a larger flow channel area is provided, the gas-liquid two-phase fluid mass transfer resistance is reduced while the contact area of an electrode of the electrolytic cell and liquid is increased, and bubble discharge is facilitated; the processing and assembling difficulty is reduced; on the other hand, due to the existence of the cathode side elastic net, the assembly reliability can be improved, the sealing problem is solved, the membrane electrode and the bipolar plate are in full contact, the hydrogen bubble generation position is uniform, and the contact resistance is reduced; finally, the rigid net on the anode side can serve as a supporting part and provide larger porosity, and mass transfer resistance is further reduced.

The invention discloses a Mo-Ni bimetallic denitration catalyst and a preparation method thereof, and relates to the technical field of denitration agents, the preparation method comprises the following steps: firstly, smelting and crushing a nickel source, a molybdenum source and an aluminum source to obtain Ni-Mo-Al ternary alloy powder; then adding into a mixed alkaline leaching solution containing alkali metal hydroxide, a surfactant and hydrophobic conductive micro powder to carry out dealumination reaction; hydrogen bubbles generated in situ in a reaction are used as a soft template, and hydrophobic conductive micro powder is adsorbed on a bubble interface and assembled in a skeleton through a Pickering effect; and finally washing and drying to obtain the catalyst. The prepared catalyst has a macroporous structure with conductive micro powder distributed on the inner wall, the unique structure not only reduces mass transfer resistance and constructs an electron transport channel, but also promotes discharge of a product nitrogen through a local hydrophobic environment, and the catalytic activity and nitrogen selectivity during treatment of nitrate-containing wastewater are remarkably improved.

The present invention is applicable to the field of engine fuel pretreatment technology and provides a micro hydrogen bubble / diesel fuel preparation and supply device, comprising: a fuel tank, a controllable oil valve, a diesel filter, a three-way valve, a low-pressure fuel pump, a nanobubble generator, a first hydrogen bubble / diesel fuel storage device, an electronic control unit, a second hydrogen bubble / diesel fuel storage device, a high-pressure fuel pump, a high-pressure fuel rail, a fuel injector, an engine, and a hydrogen supply and hydrogen detection seal. The diesel flow channel between the fuel tank and the high-pressure fuel pump constitutes the low-pressure fuel circuit. The fuel tank outlet is connected to the inlet of the controllable oil valve, the outlet of the controllable oil valve is connected to the inlet of the diesel filter, the outlet of the diesel filter is connected to the first inlet of the three-way valve, and the third outlet of the three-way valve is connected to the inlet of the low-pressure fuel pump. The present invention provides a micro hydrogen bubble / diesel fuel preparation and supply device, and the fuel rail pressure sensor can measure the fuel rail pressure and transmit the signal to the electronic control unit.

The invention discloses a device for introducing hydrogen bubbles into zirconium alloy, which comprises a heating mechanism, a circulating cooling water pipeline and a cooling water supply part, one end of the circulating cooling water pipeline extends into the heating mechanism, the cooling water supply part is arranged at the other end of the circulating cooling water pipeline, and a placing table is arranged at the end, extending into the heating mechanism, of the circulating cooling water pipeline. A limiting piece used for preventing the zirconium alloy from moving is arranged on the containing table, the outer portion of the end, stretching into the heating mechanism, of the circulating cooling water pipeline is wrapped with a vacuum cover, and hydrogen release medicine is placed in the vacuum cover. The invention further discloses a method for introducing the hydrogen bubbles into the zirconium alloy through the device. According to the device, the circulating cooling water pipeline extends into the heating mechanism and is used for providing an environment with a temperature gradient for introducing hydrogen bubbles into zirconium alloy, so that the hydrogen bubble forming efficiency is improved, and the device is suitable for research on formation of hydrogen bubbles at special positions of the surfaces of pipes.

The hydrogen-rich water purifier comprises a shell and a water purification path arranged in the shell, and the water purification path sequentially comprises a primary filter element assembly, a water inlet electromagnetic valve, a booster pump, a reverse osmosis filter element, a first high-voltage switch, a rear activated carbon filter element and a water outlet faucet in the water path direction. The hydrogen production loop is connected with the first high-voltage switch and the water outlet faucet; the hydrogen production loop sequentially comprises a resin filter element, a regulating valve, an electrolytic bath, a hydrogen mixing pump and a second high-voltage switch; and a water supply pipeline for supplying water is also connected between the water inlet of the resin filter element and the water inlet of the hydrogen mixing pump. According to the hydrogen-rich water purifier, the hydrogen can be generated through the electrolytic cell and mixed with water through the hydrogen mixing pump to obtain hydrogen bubble water, so that the hydrogen-rich water purifier automatically generates hydrogen without manually adding hydrogen, and the hydrogen-rich water purifier is relatively convenient.

The invention relates to a preparation method and application of a MoP-C electrocatalyst based on a polymolybdic acid-based metal organic framework, and belongs to the technical field of electrocatalytic materials, the preparation method of the MoP-C electrocatalyst comprises the following steps: S1, synthesis of an organic ligand btpe, S2, synthesis of a polymolybdic acid-based metal organic framework CUST-698 crystal, S3, in-situ synthesis of the MoP-C electrocatalyst, and S4, in-situ synthesis of the MoP-C electrocatalyst. The MoP-coated C electrocatalyst is applied to an electrocatalytic hydrogen evolution electrode, the MoP-coated C electrocatalyst or the electrocatalytic hydrogen evolution electrode applying the MoP-coated C electrocatalyst is applied to hydrogen evolution reaction (HER) in acidic or alkaline electrolyte, N2 adsorption and desorption tests prove that the MoP-coated C electrocatalyst has a multi-stage pore channel system composed of micropores and mesopores, and the MoP-coated C electrocatalyst has the advantages that the MoP-coated C electrocatalyst can be applied to the hydrogen evolution reaction (HER) in the acidic or alkaline electrolyte; the MoP-C electrocatalyst prepared by the preparation method disclosed by the invention is favorable for permeation of electrolyte and desorption of hydrogen bubbles, exposes a large number of active sites, has high hydrogen evolution activity, shows SEM and TEM images, effectively prevents agglomeration due to the structure of the MoP-C electrocatalyst, ensures full utilization of the active sites and rapid substance transport, and has good stability.

The application discloses a kind of based on electrolytic hydrogen bubble's PIV boundary layer flow field test system and test method of satellite, including integrated optical measurement module and tracer particle generation module;Optical measurement module is located in UUV interior, including laser emitter assembly, sapphire prism and the two imaging cameras of symmetrical arrangement, laser sheet light is refracted after sapphire prism and forms sheet light area on the outer surface of UUV;Tracer particle generation module includes cathode, anode and power supply unit, cathode is the platinum wire array of several platinum wires arranged along the axis of UUV, each platinum wire is located at different height from the wall surface of UUV;Power supply unit selectively energizes platinum wire and independently adjusts voltage, control the number and frequency of hydrogen bubbles generated, realize the synchronous measurement of flow field information at different thickness positions of boundary layer.The application realizes boundary layer flow field in-situ satellite measurement and synchronous fine measurement at different thickness positions under the condition of not changing the appearance of UUV, with the advantages of high integration, small flow field disturbance, high measurement efficiency.

This application discloses a two-phase separator in a hydrogen production system, including an ejector device, an inner cavity, and a gas guiding device. The ejector device is used to eject electrolyte into the stirring separation zone of the inner cavity in a specified direction, causing the gas-liquid mixture in the stirring separation zone to tumble and accelerate the precipitation of hydrogen bubbles in the gas-liquid mixture. The inner cavity includes a stirring separation zone, a foaming zone, a precipitation separation zone, and a vaporization zone. The stirring separation zone is used to control the gas-liquid mixture to flow into the precipitation separation zone along a preset path, so that hydrogen and hydrogen bubbles are separated from the gas-liquid mixture. The foaming zone is used to promote the collapse of hydrogen bubbles to obtain hydrogen and the target liquid. The precipitation separation zone is used to allow the target liquid and the electrolyte composed of the gas-liquid mixture to stand, so that residual hydrogen in the electrolyte is separated out. The vaporization zone is used to store hydrogen from the stirring separation zone, the foaming zone, and the precipitation separation zone. The gas guiding device is used to lead the hydrogen in the vaporization zone out of the two-phase separator.

The present application belongs to the technical field of underground hydrogen storage, and particularly relates to a method for improving underground hydrogen storage capacity by stabilizing hydrogen bubble foam with porous carbon material, comprising the following steps: Step 1, preparing hydrophobic modified porous carbon material: taking biomass waste as raw material, porous carbon material is prepared through carbonization-activation process; the porous carbon material is subjected to hydrophobic modification treatment, so that the water contact angle of the material reaches more than 90°; Step 2, preparing surfactant solution; Step 3, preparing porous carbon-surfactant composite system; Step 4, generation and injection of hydrogen bubble foam: hydrogen and the porous carbon-surfactant composite system are fully mixed in a gas-liquid volume ratio of 1:1 to 10:1, and then injected into the formation. The method can significantly improve the stability of hydrogen bubble foam, improve the hydrogen storage efficiency and hydrogen recovery rate, so as to greatly improve the underground hydrogen storage capacity.

The application belongs to the technical field of electrolytic polishing, and particularly relates to an electrolytic polishing device for semiconductor stainless steel pipes, which comprises an electrolytic cell, a collecting disc is placed in the electrolytic cell, two bearing seats are arranged in the collecting disc, and the bearing seats are fixedly connected with the collecting disc. In the electrolytic polishing operation of the semiconductor stainless steel pipe, the electrolyte continuously flows from the inner and outer sides of the steel pipe, hydrogen bubbles generated in the electrolytic reaction can be timely flushed and removed, the bubbles are prevented from adhering to the pipe wall to form a gas film, the electrolyte can be kept in continuous and uniform contact with the inner and outer surfaces of the steel pipe, the electrolyte on the surface of the pipe can be quickly renewed, a stable electrolytic environment can be maintained, local unpolished, uneven bright and dark and other problems can be effectively eliminated, the polishing uniformity and surface quality are improved, and the electrolyte can be reduced in the pipe and the gap between pipe fittings during batch processing, and the risk of subsequent corrosion and pollution is reduced.

The invention provides a hydrogen-rich tea bag and a preparation method thereof. The hydrogen-rich tea bag comprises an upper wrapping bag and a lower wrapping bag fixed to the lower portion of the upper wrapping bag, the hydrogen-rich tea bag is of a triangular pyramid structure, and an inner cavity of the upper wrapping bag is a first cavity used for storing tea particles; and an inner cavity of the lower coating bag is a second cavity and is used for storing magnesium hydride particles. According to the hydrogen-rich tea bag, magnesium hydride and water are subjected to a chemical reaction to generate hydrogen, so that a hydrogen-rich source is provided for the tea bag. Water can enter the lower coating bag to react with the magnesium hydride particles and generate hydrogen, and the hydrogen penetrates through the top of the lower coating bag to enter the first cavity and then makes contact with the tea particles and water in the first cavity, so that the dissolution efficiency of tea components is improved, the taste of tea water is improved, and the antioxidant function of the tea water is achieved; meanwhile, the hydrogen bubbles entering the first cavity can drive the tea particles to move in the first cavity, the dissolution efficiency of tea components is further improved, and the flavor extraction effect of tea water is improved.

This invention relates to the field of metal welding technology and discloses a welding device for processing laptop casings. The device includes a reaction tank containing an electrolyte solution, a conductive section installed inside and at the bottom of the reaction tank for cathodic protection of the laptop casing, a circulation section installed at the bottom of the reaction tank for circulating the solution to separate hydrogen bubbles from the flow, a convection section installed on the reaction tank for convection between the solution and the circulation section to detach hydrogen bubbles from the electrode surface, and a clamping section installed at the edge of the reaction tank. Cathodic protection is used to inhibit metal corrosion. A cathodic protection current is applied to the laptop casing through the conductive section, making it a cathode, thereby inhibiting and slowing down metal corrosion at high welding temperatures, reducing the oxidation area of ​​the weld joint, preventing further oxidation diffusion, and improving welding safety, weld joint precision, and welding quality.

The invention belongs to the technical field of metal surface treatment, and relates to a uniform black plated steel plate formed by using high-temperature liquid water and a preparation process thereof, the preparation process comprises the following steps: steel plate pretreatment: degreasing a galvanized aluminum magnesium steel plate, washing with hot ultrapure water, and drying; and homogenizing black reaction: contacting the pretreated steel plate with high-temperature liquid water added with a certain concentration of surfactant in a container for reaction to form a blackening layer, thereby obtaining the homogenized black plated steel plate. Compared with a traditional black steel plate manufacturing method, such as using strong acid / strong base blackening liquid or a complex coating process, through the reaction of the high-temperature liquid water and the zinc-aluminum-magnesium-plated steel plate, the preparation process is remarkably simplified, the production cost is reduced, the uniformity of a black oxidation film is further improved through introduction of the surface active agent, and the service life of the black oxidation film is prolonged. Defects caused by hydrogen bubble residence are avoided, and a formed black film layer has good adhesive force, corrosion resistance and wear resistance.

The application relates to a method for rapidly preparing a porous Cu / Zn heterojunction electrocatalytic material and application. The method utilizes a dynamic hydrogen bubble template method to prepare the heterojunction electrocatalytic material, and the preparation is carried out under the condition of a higher cathode deposition current. The specific steps are as follows: firstly, copper sulfate, zinc sulfate and ammonium sulfate are dissolved in deionized water according to a certain ratio to serve as an electrodeposition solution. The electrodeposition is carried out at room temperature, the deposition condition is controlled by using a direct current power supply, a hydrophilic carbon paper is used as a substrate electrode, and the porous Cu / Zn heterojunction material is deposited for 30 seconds under the condition of a deposition current of-1.0 A. The preparation scheme can realize in-situ rapid preparation of the porous material, the loading is uniform and stable, the operation process of a relatively cumbersome hard template method is avoided, and the electrocatalytic carbon dioxide reduction preparation carbon monoxide performance is very high.

The invention relates to a design method of an alkaline hydrogen production bubble orthogonal separation electrolytic bath, which comprises the following steps: forming a sunken concave area on one side, deviating from a reaction electrode, of a hydrogen side porous bipolar plate and an oxygen side porous bipolar plate through machining; outer side main gas chambers are further arranged on the sides, deviating from the reaction electrodes, of the hydrogen side porous bipolar plate and the oxygen side porous bipolar plate, a full-flow-channel structure is formed between the inner side faces of the oxygen reaction electrode and the oxygen side porous bipolar plate, and an anode auxiliary gas chamber is formed; a full flow channel structure is formed between the hydrogen reaction electrode and the inner side surface of the hydrogen porous bipolar plate to form a cathode auxiliary gas chamber; a pore array is arranged on the hydrogen side porous bipolar plate and the oxygen side porous bipolar plate in a penetrating manner; and the design of the alkaline hydrogen production bubble orthogonal separation electrolytic cell is completed. According to the electrolytic cell designed by the invention, formation of local hot spots is avoided, the internal safety of operation of the electrolytic cell is improved, and the service life of the core assembly is prolonged.

The present application relates to the technical field of electrocatalyst preparation, in particular to a super-hydrophilic and strong-sulfur-repellent bifunctional catalyst, a preparation method and application thereof, comprising: synthesis of CoMoFe-LDF / NF hydroxide precursor, hydrothermal selenization to prepare CoMo-Fe3Se4 / NF, and application of the catalyst in SOR and HER. The catalyst structure exhibits super-hydrophilic performance, which can significantly improve the wettability between the electrolyte and the electrode, facilitate the release of hydrogen bubbles from the electrode surface, thereby ensuring sufficient active site supply and greatly improving the efficiency of HER. In addition, the material also exhibits strong sulfur-repellent properties, which can effectively avoid the deposition of sulfur elements on the catalyst surface during the SOR process, reducing the risk of catalyst deactivation. In summary, this new catalyst not only has excellent electrocatalytic activity, but also has broad application in hydrogen evolution reaction and sulfur ion oxidation reaction.

The application discloses a method for improving water electrolysis hydrogen evolution efficiency and a water electrolysis hydrogen evolution efficiency characterization method. A block polymer is added to an electrolyte to strengthen hydrogen bubble desorption on a hydrogen evolution electrode surface, so that the water electrolysis hydrogen evolution efficiency is improved. By introducing a trace amount of block polymer, the application effectively reduces hydrogen bubble adhesion on a platinum electrode surface, promotes rapid desorption, and improves the water electrolysis hydrogen evolution efficiency. The hydrogen bubble desorption quantitative characterization method based on voltage fluctuation analysis is established, and the characterization method can be completed on a conventional electrochemical workstation without high-speed photography or microscopic imaging. The characterization result is intuitive and reliable, and the operation is simple, so that the method is convenient for industrial application and process monitoring.

The application discloses a drug-loaded magnesium-based micro-nano robot and an exogenous image auxiliary guided micro-nano robot delivery system, and belongs to the field of micro-nano robots. The method comprises the following steps: preparing a magnesium powder with a micron size as a main body magnesium-based drug-loaded micro-nano robot, and using hydrogen bubbles generated by the reaction of a bare magnesium notch and H+ in the environment as a self-driven driving source; establishing a stab card at an abdominal cavity part of an animal body, which is used for the insertion of an optical fiber endoscope and the injection of a magnesium-based positive and negative type micro robot in a tumor; and after the position of the tumor is found, the self-driven characteristics of the micro robot are used to inject the drug-loaded micro robot into the tumor, so that a high drug delivery effect is achieved. The magnesium-based micro-nano robot has the characteristics of a simple preparation method, good biocompatibility and self-driving, has a good application prospect in the field of cancer treatment, and improves the treatment effect of cancer.

The invention relates to the technical field of electrochemical preparation of a water body containing dissolved hydrogen, and discloses an electrolysis method for improving hydrogen solubility by wave hydrogen mixing, which comprises the following steps: S1, adding a water source into an electrolytic bath to form an electrolyte system; s2, heating the electrolyte system to a target temperature and keeping the temperature; s3, applying electric energy to the electrolyte system for electrolysis; s4, a periodic fluctuation flow field and periodic pressure waves are formed in the wave structure action area through the diaphragm pump; s5, carrying out crushing treatment on the hydrogen bubbles; s6, enabling the micro-nano hydrogen bubbles to be in contact with the electrolyte system in the dissolving area and dissolving the micro-nano hydrogen bubbles; and S7, the concentration of dissolved hydrogen is detected on line, and pulsating flow parameters output by the diaphragm pump are adjusted. Pulsating flow is provided through a diaphragm pump, a hydrogen-containing gas-liquid mixture flows through a wave structure acting area, a periodic fluctuation flow field and pressure waves are formed, breaking is carried out, meanwhile, the dissolved hydrogen concentration is detected and adjusted, the dissolving process is in a controllable state, and the dissolved hydrogen concentration is kept within a preset target range.

The invention discloses an alloy catalyst high-throughput screening method based on liquid drop printing and image recognition. According to the method, various metal precursor solutions are printed in an oil phase reaction tank according to a set proportion through a microfluidic liquid drop printing system to construct a catalyst precursor liquid drop array with various different element proportions, and an alloy catalyst dot matrix with controllable components is prepared through electrochemical deposition. The catalyst catalyzes the hydrogen evolution reaction under the alkaline condition, hydrogen bubbles generated in the reaction process are captured by a camera, contour features are extracted, then the bubble volume is calculated, and automatic quantitative evaluation of the catalytic performance of each catalytic site is achieved. The method realizes a high-throughput closed-loop process from catalyst preparation, performance test to data analysis, has the advantages of simplicity and convenience in operation, high screening efficiency, wide component combination space and the like, is suitable for rapid screening and performance optimization of the alloy catalyst under a complex component system, and has a wide application prospect in the field of research and development of new energy catalytic materials.

This invention provides an integrated hydrogen bubble water companion device, including a base and a housing. The housing is mounted on the upper surface of the base, and a main component is housed inside the housing. The main component includes an electrolytic water tank, an electrolytic cell, a circulation pump, a hydrogen mixing pump, a resin filter, and a water pump. The electrolytic water tank, electrolytic cell, circulation pump, hydrogen mixing pump, and resin filter are all mounted on the base. This invention features a compact overall structure and is equipped with an automatic rotating faucet for greater ease of use. Multiple pressure-reducing valves effectively enhance the user experience and ensure stable water output, meeting the needs of different homes and offices and offering greater applicability. Furthermore, the device is equipped with a TDS probe to accurately detect resin filter failure, thereby better ensuring water safety in the electrolytic cell and extending the device's lifespan.

The utility model relates to a micro-nano hydrogen bubble generating device for bubble bath, and belongs to the technical field of flow state mixing machines. The device comprises a pair of double pumps connected in parallel and a gas mixing tank, inlets of the double pumps are communicated with a container containing bath foam through pipelines, and the gas mixing tank is provided with a liquid inlet, a gas inlet and a liquid outlet; an outlet of the double pump is connected with a liquid inlet of a gas mixing tank through a pipeline, a gas inlet of the gas mixing tank is externally connected with a hydrogen source, a liquid outlet of the gas mixing tank is connected with a throttling bubbler, a three-section passage and a metal net which are communicated with each other are arranged in the throttling bubbler, and an outlet end of the throttling bubbler is communicated with a container for containing bath foam through a pipeline. According to the device, bubble bath liquid is firstly compressed and then expanded to generate a large number of micro-nano bubbles through three sections of passages of reducing, equal-diameter and expanding, and then the micro-nano bubbles in the bubble bath liquid are further refined and uniformly distributed through cutting of the metal net, so that enough micro-nano hydrogen bubbles are formed by the bubble bath liquid.

This utility model relates to a hydrogen bubble food upgrade generator, including a first housing and a second housing connected to the first housing, and an electrode group composed of several positive and negative electrode plates disposed in the cavity formed by the first and second housings. The first and second housings have communicating holes for the medium to enter the cavity and contact the electrode group. The first housing is fixedly connected to the second housing via a quick-release structure. At least a portion of the quick-release structure is disposed in the first housing, and the remaining portion is disposed in the second housing. After being rotated to the correct position in a first rotation direction, the at least portion and the remaining portion cooperate with each other, fixing the circumferential and axial dimensions of the first and second housings together. The advantages are: compared to the prior art, this quick-release structure allows for quick manual assembly and disassembly of the first and second housings by rotation, significantly shortening operation time and eliminating the need for tools; simultaneously, after being rotated to the correct position, it reliably locks the axial and circumferential positions between the housings, effectively preventing loosening or misalignment due to vibration during operation, thus improving the stability of the equipment.