66 results about "Balsa wood" patented technology

The invention discloses a method and a device for measuring the proportional oxygen concentration of a wood-based composite oxygen sensing material, and relates to the field of oxygen measurement. The technical problems that how to utilize wood to be compounded with metalloporphyrin, overcome the influence of excitation light source power on a test result and improve the anti-interference capability and stability of a sensor and the oxygen concentration test range in the prior art are solved. According to the invention, balsa wood is taken as a wood-based material, and metalloporphyrin Gd-HMME is embedded into the balsa wood, so that under the excitation of an ultraviolet laser, the ratio of a fluorescence signal to a phosphorescence signal of the wood-based composite material is taken as an optical parameter, and the oxygen concentration test is realized. The method is also suitable for the field of sensor preparation.

The invention relates to a preparation method of a reinforced PET material for a wind power blade, which comprises the following steps of: punching through holes and grooves in an integrally formed PET sandwich plate serving as a base material, inserting glass fiber yarns into the through holes, inserting glass fiber reinforced plastic sheets into the grooves, paving glass fiber fabrics on the upper and lower surfaces of the sandwich plate, and then performing vacuum glue pouring and curing, thereby obtaining the reinforced PET material for the wind power blade. And a reinforced PET material with a vertical glass fiber reinforced plastic column body, a glass fiber reinforced plastic fence and a glass fiber reinforced plastic large surface is formed. The PET core plate is used as a base body, the glass fiber reinforced plastic fence is used as a framework, the vertical glass fiber reinforced plastic columns play a stabilizing role, and the tensile resistance, compression resistance and shear resistance of the material are greatly improved through a composite material component with large glass fiber reinforced plastic faces on the upper portion and the lower portion, so that the composite material can completely replace Balsa wood to serve as a blade reinforcing material; therefore, a series of problems of unstable Balsa wood supply, large price fluctuation, difficult transportation, long growth cycle, uneven quality and the like can be solved, the leaf production quality can be guaranteed, the purchase cost can be reduced, and cost reduction and efficiency improvement are realized.

The invention relates to a biomass derived porous carbon material and a preparation method thereof, a negative electrode plate and a lithium ion battery. The preparation method of the biomass derived porous carbon material comprises the following steps: crushing balsa wood, screening, and collecting powder; carrying out pre-carbonization treatment on the powder to prepare a pre-carbonized material; mixing the pre-carbonized material with potassium hydroxide, and carrying out etching treatment to prepare an etched material; carrying out carbonization treatment on the etched material to prepare a porous carbonized material; and carrying out microwave post-treatment on the porous carbonized material to prepare the biomass derived porous carbon material. According to the preparation method, the prepared biomass derived porous carbon material has relatively high specific surface area, relatively high pore volume, concentrated pore size distribution and relatively high conductivity.

The invention discloses a balsa wood mechanical arm grabbing clamp and method, and relates to the technical field of mechanical equipment.The balsa wood mechanical arm grabbing clamp comprises a lower mounting frame, an even number of lower electric control sliding blocks are movably arranged on the lower mounting frame, each lower electric control sliding block is provided with a mounting block and a positioning frame, and racks are horizontally and movably inserted in the mounting blocks; an electric roller mechanism is rotationally arranged on the positioning frame and comprises a gear and tires arranged at the two ends of the gear, the gear is meshed with the rack, the tires do not make contact with the rack, are suspended and are externally connected with an inflation and deflation device, when the tires are inflated, the outer diameter of the tires is larger than that of the gear, and the tires and the gear form a dumbbell-shaped structure; the rack is driven to stretch out or retract in the horizontal transverse direction. According to the balsa wood grabbing and transferring device, nondestructive grabbing and stable transferring of balsa wood can be achieved, so that the actual requirements in industrial production and logistics transportation are met, and the product quality and the market competitiveness are improved.

The invention provides a method for degrading a retired wind power blade material by using a composite solvent, and belongs to the technical field of solid waste recycling. The method comprises the following steps: physically crushing the retired wind power blade to obtain a sample; mixing the sample with an organic solvent and an ionic liquid for reaction; the ionic liquid is imidazole salt ionic liquid or pyridine salt ionic liquid. According to the method disclosed by the invention, the retired wind power blade material is degraded by adopting the ionic liquid-organic solvent, so that oligomer or micromolecular monomer substances which are easy to separate are generated, and different components are effectively separated. After the reaction is finished, a glass fiber, balsa wood and rigid foam mixed material can be recovered and obtained, the mixed material can be used as a filler, a thermosetting resin degradation product can be converted into a useful chemical product and has high utilization value, and a catalyst is easy to recycle and reuse.

The invention belongs to the technical field of wind power blade dehumidification, and discloses a wind power blade balsa wood vacuum drying device and method.The wind power blade balsa wood vacuum drying device comprises a drying room, a vacuum bag, an air heater, a one-way valve and a vacuum pump, and the vacuum bag is arranged in the drying room and is configured to wrap balsa wood in a sealed mode; the air heater is arranged in the drying room and used for providing hot air into the vacuum bag; one end of the one-way valve is connected with the air heater, and the other end of the one-way valve is hermetically connected with the vacuum bag; the vacuum pump is arranged outside the drying room, connected with the end, away from the one-way valve, of the vacuum bag in a sealed mode and used for exhausting air in the vacuum bag so that a negative pressure state can be formed in the vacuum bag and exhausting air in the vacuum bag. The drying efficiency of water vapor in the balsa wood can be improved, the phenomenon that balsa wood is white due to air filaments is reduced, the processing cost is reduced, and energy consumption is reduced.

The invention relates to the technical field of wood processing, in particular to auxiliary positioning equipment for automatic punching of balsa wood boards. The auxiliary positioning equipment for automatic punching of the Basa wood board comprises a supporting seat, and a rotary indicating rotating seat is arranged at the top of the supporting seat; the top of the rotating seat is provided with the adjusting mechanism used for quickly adjusting the placing angle of the Basa wood plate; and the positioning mechanism for aligning and positioning the punching position of the balsa wood plate is arranged on one side of the supporting seat. According to the device, the device controls an extrusion block to be in butt joint with a shallow groove of a balsa wood plate, the position of the balsa wood plate is determined by detecting the position of the extrusion block in a limiting shell, then the height of a threaded rod relative to a rotating seat is controlled through a motor and a rotating pipe, and the effect of controlling the rotating and swinging angle of a supporting table is achieved; in this way, the positions of the balsa wood boards in different shapes can be conveniently adjusted and controlled, and the purpose of auxiliary positioning is achieved.

The present invention discloses an adjustable frame structure for a balsa wood pole-type yurt. The present invention relates to the technical field of yurt frames, and the following scheme is proposed, which includes a yurt frame mechanism, wherein a frame support column mechanism is provided inside the yurt frame mechanism; wherein the yurt frame mechanism includes an annular base fixed to the ground, a circle of Khana walls fixedly connected to the upper surface of the annular base, and a circle of Uni rafters erected on the end surface of the Khana walls. The technical solution of the present invention sets three columns inside the yurt frame, and sets column pulling anti-dumping components between the columns. By interconnecting the pottery brain, the columns, and the column pulling anti-dumping components to form a three-dimensional triangle, a stable pulling effect is achieved on the frame to resist lateral wind force. Moreover, by setting a traction mechanism on the upper surface of the Uni rafter to pull the top felt, the top felt can be controlled to open and close to different degrees inside the yurt.

The invention discloses a gravity-driven self-cleaning solar water-electricity co-production interface evaporation device which comprises an evaporation unit and a mechanical supporting unit. The mechanical supporting unit comprises a base and a rotating shaft, the central area in the length direction of the evaporation unit is connected to the rotating shaft, the hydrophobic photo-thermal surface faces upwards, and the single side of the evaporation unit is immersed in a solution; the evaporation unit is a delignification balsa wood sheet, one side of the evaporation unit is provided with a hydrophobic photo-thermal surface, the hydrophobic photo-thermal surface is obtained by mixing and spraying a carbon nanotube (CNT), polydimethylsiloxane (PDMS), 1H, 1H, 2H, 2H-perfluorooctyltrichlorosilane and n-hexane, and the two ends of the hydrophobic photo-thermal surface are provided with copper nets. The core of the invention lies in the unique seesaw type self-cleaning structure and the integrated photovoltaic power generation module. Under continuous solar driving, the SWE-SIE can automatically turn over to be immersed into saline water to be dissolved when the evaporation surface reaches a supersaturated state through periodic dynamic inclination, so that attenuation of evaporation performance caused by salt scaling is effectively inhibited, and long-term stable operation of a device is ensured. And meanwhile, synchronous water photovoltaic power generation is realized by virtue of a fluid pump effect formed by evaporation.

The invention discloses a preparation method and application of a composite catalyst based on mesoporous high-entropy alloy PtPdRhRuCu / cork wood derived carbon, and relates to a preparation method and application of a composite catalyst. The invention aims to solve the problem that during preparation of the Pt-based mesoporous high-entropy alloy, due to coexistence of various metal precursors, significant difference exists in reduction kinetics, so that nucleation and crystal growth processes are difficult to cooperatively control. According to the invention, five metal elements of Pt, Pd, Rh, Ru and Cu are ingeniously combined to form the high-entropy alloy, and the synergistic enhanced cocktail effect is generated by utilizing the unique functions (such as the high activity of Pt and Pd, the strong regulation ability of Rh and Ru on oxygen-containing species, and the Cost-down effect and electronic regulation of Cu) of each element; meanwhile, the composite material is compounded with mesoporous carbon, so that a stable conductive network and a reaction interface are constructed. The invention belongs to the technical field of electrocatalysts.

The invention relates to a seed delinting machine for improved balsa seed breeding, and belongs to the technical field of balsa seed delinting separation. The balsa seed delinting device mainly comprises a delinting device and a winnowing device, a feeding port of the winnowing device is in butt joint with a discharging port of the delinting device, balsa seeds with fibers are conveyed into the delinting device, the balsa seeds with the fibers are heated and dried through hot air to be fluffy, then the balsa seeds are turned and scattered through a delinting roller, and the purpose that the fibers and the seeds are separated is achieved. The delinting rate and the working efficiency are effectively improved, winnowing is carried out through the winnowing device, heavy seeds are screened out of screen holes under the action of the gravity of the seeds, light fibers are taken out through winnowing air, and separation of the seeds and the fibers is achieved; large extrusion force on the seeds is avoided, the phenomenon that the balsa seeds are broken is avoided, and the germination rate of the balsa seeds is guaranteed; the collected cork seeds and fibers can be utilized, and seed damage and resource waste caused by combustion delinting and acid delinting are avoided.

The application discloses a method for preparing a sodium-ion battery hard carbon negative material from recycled balsa wood and belongs to the technical field of sodium-ion batteries. The specific steps comprise the following steps: disassembling and crushing waste fan blades to obtain balsa wood powder; treating the balsa wood powder with an alkali solution to obtain a modified primary product; mixing the modified primary product with a soluble auxiliary carbon source and performing hydrothermal reaction to obtain a hydrothermal composite precursor; and performing high-temperature carbonization of the hydrothermal composite precursor in an inert atmosphere to obtain a sodium-ion battery hard carbon negative material. The core process of "alkali solution pre-modification + hydrothermal composite with a soluble auxiliary carbon source" effectively overcomes the problems of weak interface combination and pore disorder caused by the different pyrolysis shrinkage behaviors of the two precursors. The prepared hard carbon negative electrode inherits the mesoporous framework of balsa wood and the closed pore introduction filled with sucrose carbon, has low specific surface area, high initial coulombic efficiency, high specific capacity, high rate performance and excellent cycle stability, and realizes high-value utilization of waste wind turbine blades.

This invention discloses a porous activated carbon prepared using balsa wood material, its preparation method, and its application. The porous activated carbon has a pore diameter of 0.4 nm to 400 nm, and the pore volume ratio of micropores (0.4 nm to 2 nm), mesopores (2 nm to 50 nm), and macropores (50 nm to 400 nm) is greater than 30%. The specific surface area of ​​the porous activated carbon is 500 to 700 m² / g. It has an adsorption rate of 130% to 145% for carbon tetrachloride, exhibiting excellent adsorption performance.

The application discloses a kind of barashamu splicing fixed-width cutting methods, it is related to timber processing technical field, including using laser line marker to mark the splicing end of board;According to laser marking line, the position and angle of splicing board are adjusted;Board is spliced together;Again using laser line marker marks the outer contour line of splicing qualified board;Spliced board is placed in outer contour line;Image acquisition device is used to photograph board after splicing, and the image obtained is input into image processing and analysis system;With the help of image processing and analysis system, the uniformity of board splicing joint and the shielding condition of outer contour line are checked and analyzed;Take the board that passes inspection and analysis, and place it on the clamp of cutting mechanism.The method introduces advanced technologies such as laser marking, image processing and analysis, realizes accurate control and automatic inspection of the splicing and cutting process, greatly improves the quality and production efficiency of product.

The invention relates to a balsa wood core material square splicing density optimization method based on an intelligent algorithm, which comprises the following steps: S1, automatic detection and sorting: obtaining the weight and size of each balsa wood batten through a weighing and volume measuring device on an assembly line, and automatically removing battens with unqualified density; s2, squaring scheme optimization: inputting the density value rho i of each qualified batten in the step S1 into a trained squaring optimization algorithm model, and outputting an optimal batten arrangement matrix P; and S3, squaring execution is conducted, specifically, a squaring device is controlled to conduct automatic squaring operation according to the arrangement matrix P, and balsa wood core material blanks with the uniform density are formed. The method has the advantages that through automatic accurate detection and sorting, the possibility that battens with unqualified density flow into a production link is eradicated, the overall density homogenization of the spliced cubes can be realized through an intelligent algorithm, and the quality consistency and reliability of composite material products are improved.

A balsa wood repair method, comprising: providing a hole (4) in a damaged portion (2); using an upper repair plug (5) and a lower repair plug (6); injecting an adhesive (7) into an accommodating recess (601) of the lower repair plug, and then plugging the repair plugs in the hole, so as to make the adhesive be evenly distributed and fill a gap; and after the glue solidifies, sawing off redundant parts of the repair plugs and performing sanding, so as to complete the repair of balsa wood. The repair method eliminates an adhesive application step, thereby simplifying a repair process, improving the distribution uniformity and utilization rate of the adhesive, preventing the adhesive from contaminating the outer surface of the balsa wood, and enhancing the stability and durability of repairs.

The utility model relates to the technical field of launch canisters, in particular to a pressure-resistant structure of a square launch canister. According to the technical scheme, the pipe comprises a pipe body, the pipe body comprises a winding inner shell and a winding outer shell, the winding inner shell is sleeved with the winding outer shell, and prefabricated reinforcing corner fittings are arranged between the four corners of the winding inner shell and the winding outer shell. Through the prefabricated reinforcing corner fittings, the upper and lower side balsa wood sandwich and the left and right side balsa wood sandwich and winding inner shell mounting and connecting structures, the defect that the tension of the straight edge of the square winding pipeline is insufficient is overcome, the structural rigidity of the pipe body in the internal pressure bearing state is improved, and the purpose of controlling deformation of the rectangular pipe body is achieved; by means of an inverted pulling structure of the rear metal connector and the advantage of high tension of winding forming, the connecting strength of the rear metal connector and the pipe body is improved, and the technical requirement for resisting instant high impact force when the pipe body is used is met; by prefabricating the reinforcing corner fittings, the rigidity of four corner areas of the pipeline is improved, and the purpose of controlling deformation of the pipe body is achieved.

The present disclosure provides new and innovative lost circulation material that is fabricated from mechanically reducing wind turbine blades to fragments (e.g., fibers, particles, etc.). The lost circulation material includes fibrous materials from one or more wind turbine blades, such as fiberglass, carbon fiber, balsa wood, and resin. The lost circulation material can be used as an additive in drilling mud or cement to treat the problem of lost circulation. In this way, fabricating lost circulation material from wind turbine blades provides safe and permanent disposal of industrial byproducts.

The invention provides a preparation method of heat-storage transparent wood, which comprises the following operation steps: firstly, mixing polyethylene glycol diacrylate (PEGDA) with polyethylene glycol (PEG), dipping the PEG / PEGDA mixture in different proportions into a delignified balsa wood matrix, and then quickly curing under an ultraviolet lamp to prepare the heat-storage transparent wood. According to the method, the performance of the transparent wood is improved, and the transparent wood has the advantages of being adjustable in phase change temperature and transparency at the same time, so that the application requirements of various complex indoor environments are met, and the method has huge application potential in the aspect of replacing traditional glass.

The invention relates to the technical field of nano materials, and discloses a preparation method and application of a water evaporation nano material based on wood surface chemical modification, and the preparation method comprises the following steps: S1, cleaning and drying natural balsa wood to prepare wood chips; s2, the wood chips are soaked in an acidic NaClO2 solution, after heat preservation treatment, washing and drying are conducted, and delignified wood is obtained; s3, the delignified wood is soaked in a cellulose nanocrystal aqueous dispersion, and cellulose nanocrystal soaked wood is obtained after freeze drying; and S4, under the condition of 280-320 DEG C, the cellulose nanocrystal soaked wood is subjected to heating treatment, and the water evaporation nanometer material is obtained. The water evaporation nano-material prepared by the method is good in stability and high in evaporation efficiency, is applied to a water evaporation nano-generator, contributes to providing a power generation effect, and has an extremely good application prospect.

The application relates to a grafting of light wood and an efficient breeding method thereof, and belongs to the grafting technical field. The breeding method comprises the following steps: S1, preparing a stock; S2, preparing a scion; S3, grafting the bud grafting scion in S2 to the morphological upper end of the stock in S1 through skin grafting, and topping the stock; after grafting, a to-be-fused plant is formed, the to-be-fused plant is cultured in a dark condition for 20-30 days, and a grafted fused plant is obtained; and S4, the grafted fused plant is induced and cultured through a plant growth regulator. According to the method, a two-year-old diploid light wood seedling is used as the stock in spring, a diploid light wood scion is used, grafting is carried out through skin grafting, and the light wood secretion at the grafting wound is treated in the skin grafting grafting process, so that the grafting survival rate of the light wood is up to 78% or more. The method realizes combination of excellent parents, and in-vivo preservation and propagation of excellent germplasm resources.

The invention relates to a balsa wood-based porous carbon negative electrode material applied to a sodium-ion battery as well as a preparation method and application of the balsa wood-based porous carbon negative electrode material, and belongs to the field of sodium-ion battery electrode materials. The porous carbon electrode material is prepared by taking the balsa wood biomass as a carbon source. The preparation method comprises the following steps: cleaning the balsa wood biomass to remove surface impurities; the preparation method comprises the following steps: thoroughly smashing plant biomass by using a wall breaking machine, adding a pore forming agent and an activating agent, carrying out pre-carbonization treatment, carrying out high-temperature carbonization treatment on a pre-carbonization product, and carrying out acid pickling, water washing, suction filtration and drying to obtain the porous carbon electrode material. According to the preparation method, a balsa wood plant biomass material is used as a carbon source, so that the cost is greatly reduced, and the porous carbon electrode material prepared by the method has a relatively large surface area and a rich micro-mesoporous hierarchical pore structure. And when applied to a sodium ion battery negative electrode material, the material has the advantages of large sodium storage capacity, high coulombic efficiency, good cycle performance and rate capability and the like.

1. The name of the design product: cover (balsa wood). 2. The use of the design product: the design is used for book cover. 3. The design points of the design product: the combination of patterns and colors. 4. The picture or photo that best shows the design points: the unfolded state diagram. 5. The design for which protection is sought contains colors. 6. The top view and bottom view are omitted.

This application relates to an Agrobacterium-mediated genetic transformation method for balsa wood. The method includes: preparing an infection solution from Agrobacterium bacterial culture; using balsa wood seeds as seedlings, detached cotyledons or stem segments as explants, infecting the cotyledons or stem segments with the infection solution, and after infection, performing co-culture, recovery culture, and selection culture to obtain transgenic hairy roots or transgenic callus tissue. The scheme provided in this application enables stable transformation of balsa wood roots, verification of functional genes, and long-term survival in a living form, thus improving the efficiency of genetic transformation of balsa wood.

The invention provides a manufacturing method of a cork wood core material. The method comprises the steps that a cork wood sheet material is provided; the balsa wood sheet is subjected to potting treatment, so that a potting balsa wood sheet is prepared; removing a specific defect part of the potting cork wood sheet, and forming a maintenance hole; and the maintenance holes are subjected to filling treatment, so that the balsa wood core material is manufactured. Thus, according to the method, the balsa wood sheet is subjected to potting treatment firstly, so that the specific defect part of the balsa wood sheet appears, then the specific defect part is removed, the formed maintenance hole is subjected to filling treatment, and therefore the phenomenon that the balsa wood core material manufactured based on the manufacturing method has specific defects can be avoided; the structural strength and the mechanical property of the balsa wood core material are favorably improved.

The present invention discloses a wood-based solar evaporator and a preparation method thereof. The preparation method includes: preparing a balsa wood block template DW after removing lignin; based on the balsa wood block template DW, preparing a rebuilt wood RW with a network structure formed by intertwined micro-nano fibers in the pores; mixing lignin nanoparticles LNPs with a Ti<subgt;2< / subgt;C<subgt;3< / subgt;T<subgt;x< / subgt; suspension to prepare a photothermal material LMX; and coating the photothermal material LMX on the surface of RW to obtain the wood-based solar evaporator. The wood-based solar evaporator of the present invention can enhance the streaming potential while improving the evaporation rate, and can be applied in seawater desalination and / or power generation devices.

The invention discloses a balsa wood splicing fixed-width cutting method, which relates to the technical field of wood processing, and comprises the following steps: marking the splicing end of a plate by using a laser line marker; according to the laser marking line, the position and angle of the spliced plate are adjusted; the plates are spliced together; the laser line marker is used again to mark the outer contour line of the spliced qualified plate; the spliced plates are placed in the outer contour line; shooting the spliced plates by using an image acquisition device, and inputting an acquired image into an image processing and analyzing system; checking and analyzing the uniformity degree of the splicing seam of the plate and the shielding condition of the outer contour line by means of an image processing and analyzing system; and the plates which are checked and analyzed to be qualified are taken and placed on a clamp of the cutting mechanism. According to the method, by introducing advanced technologies such as laser marking, image processing and analysis and the like, precise control and automatic inspection of the splicing and cutting process are achieved, and the product quality and the production efficiency are greatly improved.

This invention discloses a biomass-based p-n type dual-drive evaporative power generation device, comprising a water tank, an n-type device body, and a p-type device body. The n-type and p-type device bodies are disposed in the water tank. An n-type upper electrode and a p-type upper electrode are respectively disposed at the upper ends of the n-type and p-type device bodies. The p-type device body is composed of ammonium-modified lignin-free balsa wood, and the n-type device body is composed of leather tanned with vegetable tanning agents and retanned with AMPS. This invention also discloses a method for preparing the biomass-based p-n type dual-drive evaporative power generation device. By connecting the bottom with an aqueous solution, positively charged ammonium-modified balsa wood and negatively charged modified leather are integrated to construct a dual-drive water evaporative power generation structure. Under the synergistic enhancement effect of the dual drives, the reverse potential difference generated at the top is significantly increased, making the actual output voltage greater than the sum of the absolute values ​​of the voltages of the p-type and n-type devices operating individually.

The invention discloses a carbonized balsa wood core material for a wind power blade and a preparation method and application of the carbonized balsa wood core material, and relates to the technical field of wind power blades. According to the technical scheme, the preparation method of the carbonized balsa wood core material for the wind power blade comprises the following steps that round balsa wood is cut and processed into battens, then the battens are sequentially subjected to carbonization treatment and drying treatment, and then the battens are squared to form a BLOCK blank; and the BLOCK green body is sequentially subjected to flat cutting repairing, sanding, four-edge cutting, surface treatment, grooving and punching, dicing, chamfering and sleeve cutting, and the carbonized balsa wood core material for the wind power blade is obtained. According to the carbonized balsa wood core material prepared through the preparation method of the carbonized balsa wood core material for the wind power blade, on the premise that the inherent advantages of low density and high specific strength of balsa wood are reserved, the moisture content is stably controlled to be 6%-8% for a long time, the dry shrinkage rate is smaller than or equal to 2%, and the carbonized balsa wood core material can meet the service requirement of the wind power blade.

The present invention belongs to the technical field of wind turbine blade manufacturing, and provides a comprehensive pipe laying and infusion method for megawatt-level wind turbine blades, including structural layer pipe laying. First, according to the number of fiberglass cloth structural layers above the sandwich structure of the windward surface and the leeward surface, infusion pipeline diversion grooves in different directions are arranged; PET foam materials are placed in the PET area, and diversion grooves are arranged in the PET area; the PET foam materials have good fatigue performance and mechanical properties, and the production process is environmentally friendly; circumferential diversion grooves are arranged in the balsa wood area, and a diversion net is laid at the balsa wood position. The balsa wood can play a role in locally strengthening the blade shell, and the balsa wood will not excessively increase the weight of the blade; main diversion grooves need to be placed on both sides of the front and rear edges of the girder, and the glue injection ports of all circumferential diversion grooves need to be placed at the positions of the main diversion grooves; through comprehensive pipe laying, the problems that it is difficult to fix the diversion grooves in the areas with large chord lengths and curvatures of the windward surface and the leeward surface of the blade and the positioning is prone to deviation are solved.