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27results about How to "Flexible size adjustment" patented technology

A gas knife device for a galvanizing line

ActiveCN224467879UAvoid blow injuriesQuick resize
The application discloses a galvanizing line air knife device and belongs to the technical field of air knives.The air knife device comprises a ring-shaped air knife shell, a base mounted on the ring-shaped air knife shell, a gas guide cavity formed in the ring-shaped air knife shell, a first gas connection end and a second gas connection end oppositely arranged on the ring-shaped air knife shell, a gas guide hose connected between the first gas connection end and the second gas connection end, a gas outlet ring arranged on the inner side of the ring-shaped air knife shell, and an adjusting mechanism arranged in the gas guide cavity of the ring-shaped air knife shell.The adjusting mechanism comprises a fixing ring arranged in the gas guide cavity of the ring-shaped air knife shell.The size of the air knife air port can be quickly adjusted according to the thickness and running speed of the galvanized plate, for example, the air flow pressure is reduced when processing thin plates to avoid blowing the plates, and the pressure is increased when processing thick plates to ensure that the thickness of the zinc layer meets the standards.Compared with a traditional single-structure air knife, the size of the air port can be flexibly adjusted, the air knife can be adapted to galvanized plates with different thicknesses and running speeds, and the universality of the equipment is improved.
Owner:TIANJIN ZHANRUN NEW ENERGY TECHNOLOGY DEVELOPMENT CO LTD

Storage cavity spacing structure, matching container body and storage container

ActiveCN224393333UFlexible choice of quantityFlexible adjustment of usage quantityInternal fittingsMechanical engineeringPhysics
The application provides a storage cavity spacing structure, a matching container body and a storage container. The storage cavity spacing structure comprises a plurality of spacing pieces. Each spacing piece has a first end face and a second end face, and a first side face and a second side face. The first end face is provided with a first connecting structure which is configured to be connectable with a fifth connecting structure of a side wall of a storage cavity. The second end face is provided with a second connecting structure which is configured to be connectable with a sixth connecting structure of the side wall of the storage cavity and a first connecting structure of another spacing piece. The first side face is provided with a third connecting structure which is configured to be connectable with a second connecting structure of another spacing piece. The second side face is provided with a fourth connecting structure which is configured to be connectable with a first connecting structure of another spacing piece. The spacing piece provided by the application can be flexibly spliced in the longitudinal direction and the transverse direction, so that the number, size and position of the spacing spaces of the storage cavity can be flexibly adjusted according to requirements.
Owner:YANTAI GREENERY TOOLS CO LTD

Spliced mattress

Owner:FOSHAN YUEEN HOME FURNISHING CO LTD

A multi-channel adaptive real-time signal processing method and system

The application discloses a kind of multi-channel adaptive real-time signal processing methods, comprising the following steps: to multiple analog input signals are synchronously sampled, obtain multi-channel digital signal;The multi-channel digital signal is adaptively filtered and processed, and low-pass filtering and median filtering are executed in parallel for the digital signal of the same channel;Signal zero-crossing point is identified based on zero-crossing detection principle, and multi-cycle synchronous measurement strategy is used, and the frequency value of each channel signal is calculated according to the frequency range of multi-channel digital signal;To the filtered multi-channel digital signal, square sum is accumulated to sampling value using time sliding window, and the effective value of each channel signal is calculated by hardware accelerated square root algorithm;The frequency value and effective value calculated by each channel are output through the preset communication interface or analog output channel.
Owner:GUANGZHOU QINGTIAN INDAL +1

A support device

ActiveCN224345107UNursing beds
The utility model belongs to the technical field of medical auxiliary instrument, concretely relates to a kind of supporting device, including multiple supporting pieces of slidingly being arranged on bed board, each supporting piece is including supporting rod and mounting, the both sides of bed board are provided with slide rail, multiple mounting are slidably arranged on each slide rail, and each supporting rod both ends are connected with corresponding mounting;The slide rail includes first sliding slot and second sliding slot, one end of first sliding slot and second sliding slot is communicated, when supporting piece is located first sliding slot, supporting rod is located above bed board, when supporting piece is located second sliding slot, supporting rod is located below bed board.The utility model is slidably arranged with multiple supporting pieces, and then corresponding number of supporting pieces can be selected according to needs and its interval is adjusted to realize the support of cotton quilt corresponding position, and when not using, it can be directly slid to the end of bed board and stored under the tail of bed.
Owner:THE 990TH HOSPITAL OF THE CHINESE PEOPLES LIBERATION ARMY JOINT LOGISTICS SUPPORT FORCE

Reinforced concrete open-web sandwich panel modular cast-in-situ formwork

ActiveCN224379402UHigh degree of standardizationHigh reuse rateFloorsForms/shuttering/falseworks
This utility model relates to the field of building construction technology, specifically to a modular cast-in-place mold for reinforced concrete hollow sandwich slabs, comprising a mold frame assembly and a baffle assembly. The mold frame assembly includes a first mold frame, at least one second mold frame, and a third mold frame. The first mold frame has a first protrusion at one end, the second mold frame has a corresponding first recess at one end and a second protrusion at the other end, and the third mold frame has a corresponding second recess at one end. By interlocking the first protrusion with the first recess and the second protrusion with the second recess, the overall size of the mold frame assembly can be adjusted by increasing or decreasing the number of second mold frames to accommodate different slab specifications. The baffle assembly is detachably connected to the assembled mold frame assembly, together forming the casting cavity. The modular, standardized design and detachable nature of the mold frame assembly and baffle assembly improve standardization and reusability; standardized modular assembly shortens the construction cycle and reduces construction costs.
Owner:GUIZHOU LVZHU KEJIAN HOUSING INDUSTRIALIZATION DEV CO LTD

An assembled light inner partition wall splicing joint structure

The utility model discloses an assembled light inner partition wall splicing node structure belongs to splicing node technical field, including support frame, connecting plate and adapter pole, the both sides of support frame all are established recessed mounting slot, the both sides of connecting plate all are fixedly connected with the first convex mounting block of recessed mounting slot adaptation, the one side and the front of adapter pole all are fixedly connected with the second convex mounting block of recessed mounting slot adaptation, the front of fender is fixedly connected with fixed frame, the upper and lower surface of support frame all are fixedly installed with fixed plate, the front and back of fixed plate all are fixedly connected with fixed assembly. The utility model discloses through setting up support frame, has simplified the assembly process, improved work efficiency, satisfied the diversified use demand, through setting up fixed assembly, effectively prevented the component loosening or falling off in the use, improved the security and stability of overall structure, simplified maintenance work, reduced maintenance cost.
Owner:SHANGHAI TANGDUN DECORATION DESIGN ENG CO LTD

Printing roller ink scraper capable of being externally connected

ActiveCN224276637ULow installation requirementsFlexible size adjustmentRotary pressesVibration suppression adjustmentsRatchetClassical mechanics
The utility model discloses a printing roller ink scraper capable of being externally connected, which comprises a supporting shell, an even number of symmetrical rolling shafts are rotatably arranged in a groove of the supporting shell, and the supporting shell is connected with a supporting plate through a sliding shaft and a spring. The supporting plate is rotationally provided with a bent swing rod, the swing rod is provided with a limiting rack, and the inner supporting rod and the outer supporting rod are connected through a limiting sliding frame. A long shaft of the outer supporting rod is provided with a limiting rod matched with a limiting rack ratchet wheel. The ink scraper is composed of a sliding seat, a sliding rod, a mounting rod and a scraper. The ink scraping device can be directly installed on the upper printing roller shaft and the lower printing roller shaft and is suitable for printing rollers of various specifications, the ink scraping angle and position are flexibly adjusted through cooperation of limiting and the ratchet wheel and buffering stable supporting of the spring, the problems that a traditional ink scraping device is poor in installation adaptability, inconvenient to adjust, insufficient in stability and the like are solved, and the ink scraping effect of the printing rollers and the device universality are improved.
Owner:CHENGDU SONGYU PACKAGING & PRINTING CO LTD

A combined support for electrical equipment

ActiveCN224400924UFlexible size adjustmentMeet various installation needsRod connectionsSubstation/switching arrangement casingsElectric power equipmentStructural engineering
The application belongs to the field of power equipment support, and relates to a power equipment combined support, which comprises a mounting seat, a limiting mechanism fixedly connected to the outer surface of the mounting seat, an adjusting mechanism attached to the lower surface of the mounting seat, the limiting mechanism comprising a connecting block fixedly connected to the lower surface of the mounting seat and a limiting rod, the outer surface of the mounting seat being threadedly connected with a limiting bolt, the adjusting mechanism comprising a limiting frame attached to the lower surface of the mounting seat, and the inner wall of the limiting frame being slidingly connected with an extension frame, the power equipment combined support belonging to the technical field of power equipment support; the power equipment combined support is flexible in size adjustment, suitable for different specifications of equipment, and capable of driving the extension frame to slide the threaded rod in the through hole, rotating the nut after the length is determined, and fixing the gasket to the limiting frame by the deformation of the clasp spring to form different rectangular structures, thereby meeting the diversified installation requirements and preventing the sliding block from being separated, and ensuring the use safety.
Owner:SHENZHEN NANWANG ELECTRIC CO LTD

Noise reduction assembly, air outlet device and air conditioner indoor unit

ActiveCN224534477URadial spacing decreasesIncreasing the thickness
The utility model provides a kind of noise reduction assembly, air outlet device and air conditioner indoor unit, and noise reduction assembly includes: noise reduction pipe fittings, including the main pipe body and noise reduction shell being connected with each other, main pipe body is enclosed into inflow port, outflow port and the flow-through passage being communicated with inflow port and outflow port, main pipe body is provided with the noise reduction through-hole being communicated with flow-through passage, noise reduction shell is set in the side of main pipe body away from flow-through passage and with the at least part of main pipe body interval arrangement to enclose into noise reduction chamber, to make the airflow in flow-through passage enter into noise reduction chamber through noise reduction through-hole;Wherein, main pipe body and noise reduction shell can be deformed to be set to stretch and contract, to when main pipe body and noise reduction shell are lengthened or shortened, the radial distance between the at least part of main pipe body and noise reduction shell reduces or increases. By the technical scheme provided by the utility model, the technical problem that the noise reduction effect of airflow noise in the prior art is poor can be solved.
Owner:ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION

A fertilizer granule cooling device for fertilizer production

The application relates to a fertilizer particle cooling device for fertilizer production, which comprises a conveyor for conveying the granular fertilizer, a feeding hopper for feeding on both ends of the conveyor, and a guide frame for discharging on both ends of the conveyor, a discharge port for discharging is formed in the feeding hopper, an adjusting unit is slidably arranged on the discharge port, a cooling bin is arranged on the conveyor, and a cooling unit is arranged on the cooling bin; two material distribution mechanisms are oppositely arranged in the cooling bin, the material distribution mechanism comprises a fixed plate arranged above the inner wall of the cooling bin, the size of the discharge port can be flexibly adjusted through the adjusting unit, so that the flow of the fertilizer particles falling from the feeding hopper to the conveyor is kept balanced, the fertilizer particles can be dispersed through the material distribution mechanism, gaps are formed among the fertilizer particles, the contact area of the fertilizer particles and the cooling gas is increased, and the cooling effect is improved.
Owner:HUBEI EZHONG ECOLOGICAL AGRI TECH CO LTD

Novel elbow tube inner supporting mandrel

ActiveCN224309376UHigh forming precisionChange the amount of compressionShaping toolsScrew threadMechanics
This utility model provides a novel internal support mandrel for pipe bending, comprising: a mandrel body; an inner support core disposed on the inner side of the mandrel body; a connecting bolt disposed at one end of the inner support core; a through-bead threadedly connected to the outer side of one end of the connecting bolt; a spring disposed at the other end of the inner support core; and a screw threadedly connected to the inner side of the mandrel body. This novel internal support mandrel for pipe bending allows for adjustment of the position of the inner support core by rotating the through-bead, thereby changing the compression of the spring and flexibly adjusting the magnitude of the supporting force. In this way, the internal support mandrel can provide appropriate supporting force according to the needs of pipes with different diameters and bending angles, improving the accuracy of pipe bending.
Owner:FUZHOU NOBLE FUJI MECHANICAL & ELECTRICAL LIMITED

A core shaft of a stator core of a permanent magnet motor

The utility model discloses a kind of core shaft of stator core outer pressure installation of permanent magnet motor, it is related to permanent magnet motor technical field, including optical axis, the outside of optical axis is fixedly welded with multiple annular array arrangement's No. welding plate, No. welding plate is equipped with sliding slot, the inside sliding connection of sliding slot has No. 2 welding plate, No. 2 welding plate is fixedly welded with arc support plate. In the utility model, optical axis, No. welding plate, No. 2 welding plate and arc support plate, commonly form a web welding core shaft, guarantee the position stress uniformity of core shaft and seamless steel pipe inside contact, so that core shaft is more not easy to deform when being subjected to external force, to extend the service life of core shaft.
Owner:ANHUI MINGTENG PERMANENT-MAGNETIC MASCH&ELECTRICAL EQUIP CO LTD

A test tool for testing a seal ring

ActiveCN224341157UFlexible size adjustmentFlexible adjustment of structureDetection of fluid at leakage pointO-ringStructural engineering
The utility model provides a kind of test tool for testing sealing ring, including first cover plate, second cover plate and baffle;The first cover plate with the second cover plate is detachably connected, and the first cover plate with the second cover plate is provided with O ring;The first cover plate with the baffle is detachably connected, and the first cover plate with the baffle is provided with limiting pad block;Air inlet is provided on the first cover plate, and gas collecting port is provided on the second cover plate;It can adapt to the test demand of multiple different specifications and types of sealing members, and by replacing limiting pad block of different thickness and selecting appropriate specification bolt, the size and structure of tooling can be flexibly adjusted, and air-tight test of various common sealing members is facilitated.
Owner:SHANGHAI JIANUO SEALING TECH CO LTD

A new type of coal mining machine limit device

ActiveCN224452775UFlexible size adjustmentReduce procurement costs
This utility model discloses a novel limiting device for a coal mining machine, including a geared rail. An upper limiting block and a lower limiting block are respectively provided between two pins on the geared rail. The upper and lower limiting blocks are connected to each other by fixing bolts. Removable shims are installed on both the upper and lower limiting blocks. By providing removable shims between the middle and side plates of the upper and lower limiting blocks, the overall size of the limiting blocks can be flexibly adjusted. For the two mainstream geared rails with pitches of 126mm and 147mm, only the number of shims needs to be increased or decreased to accurately adapt to different pin spacings, eliminating the need to customize limiting devices for different geared rail specifications, thus reducing spare parts procurement costs and inventory management difficulties.
Owner:JIANGSU LIHANG ELECTRIC CO LTD

Side pressure type power-on tool and power-on device for electric meter

ActiveCN224317677UFlexible size adjustmentAchieve barrier-free plugging and unpluggingTime integral measurementPower usageControl theory
This application provides a side-pressure type power-on fixture and a power-on device for an electricity meter. The side-pressure type power-on fixture includes: a base, on which an adjustment structure and a movable plate are provided. The movable plate is movably disposed on the base and has at least one limiting insertion hole. A first conductive part is fixed on the base and is located within the limiting insertion hole. A second conductive part is provided on the inner sidewall of the limiting insertion hole, and a receiving space for accommodating a power supply column is formed between the second conductive part and the first conductive part. The adjustment structure is used to drive the movable plate to reciprocate along a first direction to adjust the size of the receiving space in the first direction. This application can flexibly adjust the size of the receiving space in the first direction to increase or decrease, so as to achieve unobstructed insertion and removal of the power supply column and the receiving space. The unobstructed insertion and removal of the power supply column and the receiving space of this application has the advantages of reducing power consumption risks and tooling costs, and improving the service life of the electricity meter and the stability of power supply.
Owner:HANGZHOU MINGTE TECH

Nanomaterial compression granulation device

The utility model relates to extrusion granulation technical field especially relates to a kind of nanometer material compression granulation equipment, including base, the upper surface of base is fixedly installed with stand, the top of stand is fixedly installed with compression box, and the top of compression box is fixedly installed with material hopper, rotation is installed in the compression box with shaft, and the outer wall of shaft is fixedly installed with the stirring rod of equidistance annular distribution, first auger rod is also rotationally installed in the compression box, and first auger rod is located below the shaft, the outer wall of one side of compression box is fixedly installed with auger cylinder, and the end of first auger rod is located in auger cylinder. The utility model has obvious advantages, spraying and stirring synergistic accelerate material polymerization;First auger rod realizes preliminary extrusion plastic forming, densification;Second auger rod completes secondary extrusion with extrusion cylinder, accurately controls granule quality;Granulation mechanism can flexibly adjust granule size shape, high efficiency and stability, satisfy multi-field demand.
Owner:汤子城

An ecological slope protection reinforcing and repairing device for river regulation engineering

ActiveCN224451513URenovation project progresses smoothlyImprove applicabilityRiver routingRiver regulation
This utility model relates to the field of ecological restoration technology and discloses an ecological slope reinforcement and restoration device for river regulation projects. The device includes a shell with a groove on its inner wall. Two fixing blocks are fixedly connected to the inner wall of the shell. A support block is fixedly connected to the right side of each fixing block. A spring is fixedly connected to the right side of the support block, and another support block is fixedly connected to the right side of the spring. A rack is fixedly connected to the right side of the support block, and a sliding column is fixedly connected to the right side of the rack. A motor is fixedly connected to the inner wall of the shell, and a gear is fixedly connected to the drive end of the motor. This utility model allows for precise adjustment of the device's extension length, angle, and other dimensional parameters, ensuring a close fit to the complex river back slope surface. This improves the applicability of ecological back slope reinforcement and restoration, and guarantees the smooth progress of river back slope regulation projects.
Owner:SHANXI YELLOW RIVER RIVER AFFAIRS BUREAU YONGJI YELLOW RIVER RIVER AFFAIRS BUREAU

Self-locking special dental forceps

ActiveCN224387559UFlexible size adjustmentAdjustable tightnessTooth pincettesDental forcepsMechanical engineering
This utility model discloses a self-locking oral forceps, including a first clamping arm and a second clamping arm fixedly connected at their tail ends, with a self-locking assembly between the first and second clamping arms. The self-locking assembly includes a support rod, an adjusting roller, and a locking nut. The adjusting roller is fixedly installed in the middle of the support rod and coaxially arranged with it. The first and second clamping arms have interconnected support through holes and limiting strip holes. Both ends of the support rod pass through the support through holes and limiting strip holes in sequence, extending to the outside of the first and second clamping arms and connecting with the locking nut. The locking nut has a limiting block that matches the limiting strip hole. Both ends of the support rod are machined with external threads in opposite directions. The inner walls of the inner holes of a pair of fixing nuts are machined with internal threads that match the external threads at the corresponding ends of the support rods. The structure of the self-locking assembly of this utility model allows for flexible adjustment of the tightness of the clamped object, saving time and effort during operation.
Owner:FOURTH MILITARY MEDICAL UNIVERSITY

Steel frame formwork structure and L-shaped wall formwork system suitable for L-shaped wall formwork

This utility model provides a steel frame formwork structure and an L-shaped wall formwork system suitable for L-shaped wall formwork. Multiple frame structures are spliced ​​together in the vertical and horizontal directions by clamping structures. Perpendicular frame structures are fixed by vertical connecting structures. Frame structures located at the inner corner of the L-shaped wall formwork are spliced ​​together by corner structures and fixed to the inner corner frame structures by clamping structures. This modular splicing method replaces the complex assembly process of existing steel frame wooden formwork construction that requires additional connectors. It allows construction personnel to flexibly adjust the size and shape of the wall formwork according to actual project needs without redesigning the entire mold set. This simplifies the connection structure, reduces the weight of the overall formwork structure, eliminates the need for complex on-site assembly operations, effectively shortens construction time, and improves construction efficiency.
Owner:广州宏途设备工程有限公司

A hemming tool for garment making

The utility model relates to a hemming tool technical field, disclose a kind of hemming tool for clothing making, including hemming device, the outer wall right side of hemming device is equipped with multiple adjusting grooves, the inner wall sliding connection of adjusting groove has regulator, the top of regulator is fixedly connected with stabilizing sheet, the left side top of hemming device is fixedly connected with fixed block, the left side of stabilizing sheet is fixedly connected with slide, the left side of slide is fixedly connected with anti -drop block, the top of fixed block is threadedly connected with knob, the bottom of knob is fixedly connected with tablet.The utility model among them, regulator can slide left and right, realize the hemming operation of different distance, stabilizing sheet ensures sliding stability, and slide and fixed block are connected, realize sliding adjustment, after knob rotation, tablet extrusion slide locking position, anti -drop block prevents overadjustment, simple structure, flexible adjustment size, improve convenience and stability, satisfy use requirement.
Owner:HUBEI HONGYIHAO CLOTHING CO LTD

Multi-scene vehicle-mounted intelligent regulation and control comprehensive power supply system

PendingCN122269609ASolve the lack of flexibilityFlexible capacity adjustmentNon-rotating vibration suppressionCasings/cabinets/drawers detailsIn vehicleControl engineering
The present application relates to the technical field of vehicle-mounted power supply, especially to a multi-scene vehicle-mounted intelligent regulation and control comprehensive power supply system, comprising a main shell and a power supply assembly, the main shell is composed of a plurality of sub-assembly shells, symmetrically provided with an inner side adjusting groove on the inner side surface of the sub-assembly shell, and an elastic telescopic support flow guide assembly and an elastic adjustable limiting assembly are assembled in the inner side adjusting groove for supporting and limiting the power supply assembly. The multi-scene vehicle-mounted intelligent regulation and control comprehensive power supply system can freely increase or decrease the number of sub-assembly shells and internal power supply assemblies according to the power demand of the whole vehicle, flexibly adjust the system capacity and size, solve the problem of insufficient flexibility of the existing integrated power supply system, reduce the research and production cost, and improve the product universality.
Owner:CHANGZHOU WUJIN HGPOWER

A multifunctional wrench

ActiveCN224310533Uhigh torqueFlexible size adjustmentSpannersWrenchesHand partsNuts and bolts
This utility model discloses a multi-functional wrench, including a clamping component, an extension component, a gripping component, and an anti-slip sleeve. The clamping component includes a connecting main rod, a fixed arc-shaped component fixed to one side of the front end of the connecting main rod, and a detachable arc-shaped component detachably mounted on the other side of the front end of the connecting main rod via a disassembly port. The front end of the extension component is threadedly connected to the rear end of the connecting main rod to extend the wrench handle length. The front end of the gripping component is threadedly connected to the rear end of the extension component. The anti-slip sleeve is respectively fitted onto the extension component and the gripping component, effectively increasing the friction between the hand and the wrench. This multi-functional wrench allows operators to flexibly adjust the size of the clamping part according to the size of the nuts and bolts used in actual work, while effectively reducing the volume of replacement parts, making it convenient for operators to carry and store. The extension component allows for convenient connection to the extension handle, enabling operators to generate greater torque with less force during operation, making operation more effortless.
Owner:CHINA FIRST METALLURGICAL GROUP

A training device

The utility model relates to medical auxiliary exercise equipment technical field, concretely discloses a training device with first direction, including flexible body and at least one flexible sleeve, the flexible body one end is equipped with sucking disc, along first direction, the diameter of flexible body is gradually reduced from the one end close to sucking disc to the one end away from sucking disc, at least one flexible sleeve is configured to be able to be nested in the outer periphery of flexible body along first direction, and flexible sleeve and flexible body are negative tolerance fit connection, the utility model discloses setting sucking disc makes this training device can be fixed with other objects, and the user operation and use are convenient, and flexible sleeve is nested in the outer periphery of flexible body through negative tolerance, can avoid the falling of flexible sleeve in the use process, and flexible sleeve is nested in the flexible body in the way of "doll", reduces the space that this training device occupies, reduces the packing volume, is convenient for carrying, transportation and storage.
Owner:SHENZHEN S HANDE TECH CO LTD

An energy degrading device for accelerator ion irradiation

PendingCN122091299AFlexible and regular rotationFlexible adjustment of thicknessIrradiation devicesElectric machineBevel gear
This invention discloses an energy reduction device for accelerator ion irradiation, comprising a cylindrical long support rod with a long rotating shaft coaxially rotatable at its center. The right end of the long rotating shaft is driven by a motor, and the left end of the long rotating shaft extends beyond the end of the long support rod and is equipped with a first bevel gear. A target disk is fixed to the right end of the long support rod, and an energy reduction disk positioning device extending to the left is fixed to the left side of the target disk. An energy reduction device for regulating energy is fixed to the left end of the energy reduction disk positioning device. The energy reduction device includes a short rotating shaft located at the left end of the energy reduction disk positioning device, on which an energy reduction disk and a second bevel gear are mounted. This invention allows for flexible and regular rotation of the energy reduction disk, has strong scalability, and can adjust the energy of different particles within the irradiation terminal to achieve the purpose of regulating the injection of energetic particles at different depths.
Owner:SHANDONG UNIV +1

A photocatalyst for the photocatalytic reduction of CO2 to methane, its preparation method and application

This invention belongs to the field of photocatalytic energy conversion technology, specifically relating to a photocatalyst for the photocatalytic reduction of CO2 to methane, its preparation method, and its application. The preparation method of the photocatalyst includes the following steps: adding a 2,2'-bipyridine solution to a copper salt solution in steps and mixing well; then adding an oxalic acid solution in steps and stirring to react, obtaining a copper dimer, wherein the molar ratio of copper salt, 2,2'-bipyridine, and oxalic acid is 0.5-1:0.5-1:0.25-0.5; adding the copper dimer dispersion in batches to a mesoporous graphitic carbon nitride mpg dispersion, wherein the mass ratio of mpg to copper dimer is 250:15-30; stirring and reacting at 20-40℃ for 10-30 h, and collecting the solid product; and then, in an air atmosphere, keeping the solid product at 230-270℃ for 5-15 h to obtain the final product. By introducing stable micro- and nano-bubbles and regulating the reaction interface, the reaction gas is mild and safe, and the reaction system is simple and easy to operate. This can effectively improve mass transfer efficiency and quantum efficiency, thereby significantly increasing the CH4 yield, reducing overpotential, and suppressing side reactions.
Owner:SHANDONG UNIV