77results about How to "Improve hydrodynamic properties" patented technology

The invention discloses a deep sea bionic pressureproof shell. An axial-symmetry eggshell-shaped structure with the length of L, the width of B and the turning radius of R(x) is formed by a left end socket, a right end socket and a middle shell, wherein the thickness t2 of the middle shell is of an equal-strength variable-thickness structure, the thickness t1 of the left end socket and the thickness t3 of the right end socket are respectively of an equal-thickness structure, the left end socket and the middle shell are fixedly connected, and the right end socket and the middle shell are connected by a flange bolt or a movable hatch cover with a seal ring. The deep sea bionic pressureproof shell has good mechanical properties, in-shell space utilization rate, hydrodynamic characteristics and passenger comfort, and comprehensive improvement on safety, carrying capacity, mobility and diving time of a diving device is facilitated; meanwhile, the weight of the pressureproof shell is lightened, the reserve buoyancy of the pressureproof shell is increased, and the processing and manufacturing difficulty and cost are reduced.

The invention discloses a method for preparing a super-hydrophobic bionic metal surface through an ultrafast laser technology and relates to the technical field of bionic surface manufacturing. The method comprises the following steps that a metal sample is subjected to mechanical grinding and polishing; the metal sample is subjected to ultrasonic cleaning; ultrafast laser is replaced with a circular polarization glass filter, and then micro-nano structure induction processing is conducted; the metal sample is subjected to anti-dragging micro-structure processing; and the processed metal sample is subjected to ultrasonic cleaning, placed in a fluoroalkyl silane liquid solution for soaking, and taken out to be blown-dried. According to the method, the surface integrating super-hydrophobic and anti-dragging features is successfully prepared by fully utilizing the characteristics of a femtosecond laser micro-nano processing technology, retention of water drops on the metal surface in theflight environment is reduced to the greatest extent, and thus the dampproof and anti-icing effects are maximized.

The invention discloses a water-air dual-use unmanned aerial vehicle. The water-air dual-use unmanned aerial vehicle includes a fuselage, wings, tail wings, an air propeller, a folding and unfolding mechanism, booster mechanisms, a control surface driving mechanism, a shedding mechanism and navigation propellers; the fuselage is a main mounting body and connected the wings, the tail wings, the airpropeller, the folding and unfolding mechanism, the shedding mechanism and the navigation propellers; the folding mechanism is used for folding and unfolding the wings; the booster mechanisms providethe energy for underwater emission of the unmanned aerial vehicle; the control surface driving mechanism is used for the control of each control surface; the shedding mechanism is used for the redundant booting mechanisms during the unmanned aerial vehicle flight; and the navigation propellers are used for underwater navigation. According to the water-air dual-use unmanned aerial vehicle, the folding and unfolding mechanism is used for folding the wings backwards, the resistance of the underwater navigation is reduced, an air cylinder is adopted to boost, the launching force is provided, thecontrol surface driving mechanism with small occupied space volume is adopted to ensure water-proof sealing, the shedding mechanism is adopted to shed the air cylinder, and the unmanned aerial vehicleweight and flight resistance are reduced.

The invention provides a novel method for producing beta-polymalic acid by the solid-state fermentation of microorganisms, and relates to a novel process of producing the beta-polymalic acid by using an inert adsorption composite material to the solid-state fermentation of aureobacidium pullulans(at present, the strain is stored in the general microorganism center of China Committee for Culture Collection of Microorganisms, and the CGMCC No. is 3337.). The method comprises the following steps of: selecting a nontoxic inert support which is good in physical water absorption and stable in nature and has a porous structure, evenly mixing the inert support and a liquid culture medium inoculated with the aureobacidium pullulans in a certain ratio, sending the mixture to a solid-state reactor for fermentation, extracting a substrate after the solid-state fermentation with water, and inspecting the content of the polymalic acid. By the method, the fermentation efficiency of the polymalic acid is improved, and the transfer efficiency of oxygen in the fermentation process is enhanced; at the same time, because the inert support can be recycled, the discharge of the solid wastes is greatly reduced; the utilization ratio of the fermentation equipment is high, the fermentation period is short, the products are easy to be separated and extracted, and the yield and purity of the polymalic acid are improved; and the operating cost is low, the economic benefits are obvious, and the industrialized production is facilitated.

The invention provides a slightly alkaline sapphire polishing solution and a preparation method thereof, which relates to the field of sapphire polishing technology. The method comprises the following steps: firstly, suspending nano-silica sol particles of which the particle diameters are 3-300nm in water; adding a complexing agent into the suspension; then, adding a surfactant; and finally, regulating the pH value of the suspension to 7-9.5. The method of the invention is simple and reasonable, easy production and good product stability. The product has high dilution rate, high polishing efficiency, good and strong stability and easy production and can not deposit on the surfaces of polishing machines and polishing materials easily; and because of unique fluid property, the product can not be air-dried on the surface of sapphire easily after being polished, thereby greatly reducing the burden of the subsequent cleaning processes. Different from the traditional sapphire polishing solution, the product of the invention has the advantage that under the condition of regulation of a reasonable formula, the polishing and cutting rate of sapphire increases when the pH (10.5) decreases.

The invention discloses a bionic microporous noise-reducing structure which is used for an oil fume extraction system. The structure comprises a shell body; oil fume passes by the inner cavity of the shell body and contacts with the inner wall of the shell body; the invention is characterized in that the outer side of the shell body is fixedly provided with a noise-reducing box which is enclosed at the periphery; the noise-reducing box is internally provided with at least one layer of porous plate which is distributed with tight millipores, so the noise-reducing box is divided into at least an inner cavity and an outer cavity; the shell body which is opposite to the porous plate and enclosed in the noise-reducing box is coated and distributed with an oil-preventing coat, moreover, bar-shaped pores are tightly distributed on the shell body; the inner cavity of the shell body is communicated with the inner cavity of the noise-reducing box by the bar-shaped pores, moreover, the bar-shaped pores are slits of louver window type and the vanes of the slits are self-locked. The invention uses a principle of fluid mechanics for effectively preventing the oil fume from blocking the millipores at places such as cochlear duct, air exhaust pipe and the like, finally ensures that the noise-reducing box can effectively achieves the aims of long-term sound absorption and noise reduction, and is especially suitable for household oil fume extraction machine.

The invention provides an efficient high-precision sapphire polishing solution and the preparing method, which relates to the polishing technology on sapphire, in particular to the polishing solution technology which can finely polish the surface. Firstly, nano silica sol particles, the particles diameters of which are 15-80 nanometers, are dispersed into water to form suspension; and then complexation agent is added into the suspension; and then surface active agent is added into the suspension; finally, the PH value of the suspension is regulated to 10-11. The invention has simple and rational production process, can be produced simply, contains low solid content, has high polishing efficiency, has strong stability, can hardly deposit on the surface of the polishing machine and the object to be polished, can hardly be air-dried on the surface of the sapphire after polishing due to the unique fluidity, and can lighten the burden of the following cleaning process greatly.

The invention discloses a device and a method for adjusting the flame temperature of VAD and OVD on line. The device comprises a blow lamp and a sleeve arranged at the outlet of the blow lamp, wherein a heating device I sleeves the outer surface of the blow lamp; a heating device II sleeves the outer surface of the sleeve; a part, close to the outlet of the blow lamp, of the prefabricated rod loose body is adopted as a deposition area of the prefabricated rod loose body; a pair of heating devices III are arranged close to the deposition area; and the heating devices III are arranged in front of and behind the deposition area. By adopting the device and the method disclosed by the invention, the stability of refractive index profile distribution of an optical fiber prefabricated rod is improved. As the refractive index profile distribution of the optical fiber prefabricated rod and the stability of the refractive index profile distribution can be affected by the flame temperature and the temperature of the deposition area, the temperatures of the flame and the deposition area are controlled by using an external heating body (a graphite resistor or a resistance wire), the temperature control precision and the stability are both good when being compared with pure combustion flame, and the result shows that the refractive index profile distribution of the optical fiber prefabricated rod can be relatively precise and stable.

The invention discloses a wood fiber biomass loaded nano hydrated titanium dioxide composite material, and a preparation method and an application thereof, and belongs to the technical field of titanium dioxide composite materials. The preparation method comprises the steps: soaking wood fiber biomass into a mixed solution of butyl titanate and absolute ethyl alcohol, treating with an alkaline solution, washing the wood fiber biomass material with water, and drying to obtain the wood fiber biomass loaded nano hydrated titanium dioxide composite material. The wood fiber biomass is selected as acarrier, the good photocatalyst titanium dioxide and the wood fiber biomass are combined, the composite material is low in preparation cost and environmentally friendly, recycling of resources is achieved, and the preparation process is simple, convenient and environmentally friendly. The composite material not only can adsorb and remove heavy metal ions in water, but also can catalytically degrade organic pollutant methylene blue under the excitation of sunlight and visible light.

The invention relates to a surface modification method of silver powder for solar battery front silver paste. The surface modification method comprises the steps that the silver powder is added to a mixed solution of a silane coupling agent solution and an organic fatty acid or organic fatty acid salt solution, then mixing is carried out for 10-40 mins, and sedimentation, washing, drying and screening are carried out, so that the treatment is completed. The silver powder after the surface modification is high in storage stability, good in dispersity, high in tap density and good in liquidity and is not prone to agglomerating; the wettability and the compatibility with an organic carrier of the silver powder are improved, and the silver powder is thus dispersed uniformly in paste; the hydrodynamics performance and the liquidity of the paste are improved; the compactness after sintering is improved; the series resistance is reduced and the open-circuit voltage is raised, so that the photoelectric conversion efficiency is improved; and the surface modification method is simple in technology, easy to implement and low in cost.

The invention discloses an egg-shaped pressure-resistant shell device for a self-balancing bathyscaphe. The egg-shaped pressure-resistant shell device for the self-balancing bathyscaphe comprises an egg-shaped pressure-resistant shell. An observing window assembly is arranged at the big-head end of the egg-shaped pressure-resistant shell, and an egg-shaped head-sealed assembly is arranged at the small-head end of the egg-shaped pressure-resistant shell; and a balancing seat system connected with the inner wall of the egg-shaped pressure-resistant shell is arranged in the short-shaft direction of the egg-shaped pressure-resistant shell, and an inertial navigation measurement system is arranged on the upper inner wall of the egg-shaped pressure-resistant shell corresponding to a middle line of the balancing seat system. According to the egg-shaped pressure-resistant shell device for the self-balancing bathyscaphe, vertical diving and floating modes are adopted, the big end of the egg-shaped pressure-resistant shell is kept to be same with the moving direction all the time, a streamline structure of an egg-shaped shell body is utilized, resistance is small, diving and floating time is shortened, and underwater working efficiency is improved. The egg-shaped pressure-resistant shell device for the self-balancing bathyscaphe is simple in structure, small in size and low in manufacturing cost.

The invention discloses a protein-polysaccharide composite thermal gel for food and a preparation method of the protein-polysaccharide composite thermal gel. The protein-polysaccharide composite thermal gel for food comprises the following preparation raw materials in parts by weight: 7-11 parts of protein, 1.5 parts of polysaccharide, 100 parts of water, and a catalyst. The protein-polysaccharidecomposite thermal gel for food has the advantages that a processing course is efficient, simple and convenient; a double-network gel system is prepared, the mechanical property and water holding capacity of the gel are improved effectively, and the application range of the gel is expanded; and the protein-polysaccharide double-network gel system does not produce objectionable odor, and the fluidmechanics property is good.

The invention discloses an open channel diffusion section flow-equalizing device and a method for calculating a placement position of the open channel diffusion section flow-equalizing device. The open channel diffusion section flow-equalizing device is characterized by comprising an isosceles triangular top plate (1), a dovetailed bottom plate (2), two upstream front slope plates (3), an isosceles-triangular upstream rear slope plate (4), a flank outer wall (5) and a flank inner wall (6), wherein the dovetailed bottom plate (2) is arranged parallel to the top plate (1); the two upstream front slope plates (3) are connected with the outer lateral edge of the top plate (1) and the outer lateral face of the bottom plate (2); the isosceles-triangular upstream rear slope plate (4) is superposed with the bottom of the top plate (1); the vertex angle of the isosceles-triangular upstream rear slope plate (4) inclines to the plane of the bottom plate (2); the flank outer wall (5) is connected with the rear lateral edges of the upstream front slope plates (3) and the tail end point of the bottom plate (2); the flank inner wall (6) is connected with the waist of the upstream rear slope plate (4) and the tail end point of the bottom plate (2). According to the open channel diffusion section flow-equalizing device and the method for calculating the placement position of the open channel diffusion section flow-equalizing device, the theoretical and technical problems of short-distance diffused water-flow smooth joint are solved through the flow division effect of two flanks of the flow-equalizing device.

The invention discloses an axial-flow blender and a manufacturing method thereof. The axial-flow blender comprises a mixer shaft, a hub, a blade, a fastening piece and a blade handle. The hub is arranged on the axial-flow blender; the blade is connected with the hub by the fastening piece through the blade handle. The blade of the mixer takes spatially twisted shape, the tilt angle of the front end of the blade, beta t is smaller than the tilt angle of the root part of the blade, beta a. The section of the blade at any radius part is of an arch structure. The surface of the blade is a part of a cylndrical surface and can be obtained from slantwise cutting a cylinder which is formed by rolling a sheet of metal beforehand or a part of the cylinder. The blender has the advantages of large discharging capability, simple manufacture requiring no mould, material saving and flexibly regulated parameters, etc. Taking catalytic hydrogenation of an intermediate of vitamin H for example, the reaction time is shortened to be within 3 hours from more than 16 hours of original time by adopting the axial-flow blender, and the energy consumption is small, the product quality is good and the catalyst is saved.

The invention discloses an in-vitro simulation circulatory system for artificial heart test. The system comprises a ventricle simulation module, a lung circulation simulation module and a systemic circulation simulation module, and realizes the simulations of the blood flowing state and the organ perfusion state of a human body. In a left ventricle simulator and a right ventricle simulator, cardiac muscles are simulated through flexible connectors, myocardial contraction and relaxation are simulated by using elastic components, and limit state of the myocardial contraction and relaxation is simulated by using limiters, thus realizing a passive regulation of ventricular beating state during changes in cardiac preload and afterload. Meanwhile, by simulating different blood flow paths and different organ perfusion levels, the invention can be used to test and optimize various types of artificial heart (ventricle assist pump) devices, and to objectively test and optimize hydrodynamic performance of products.

The invention relates to the technical field of packaging materials, in particular to a reinforced composite polyamide film and a preparation method thereof. The reinforced composite polyamide film comprises at least two layers of structures, and the two layers of structures are a polyamide layer and a polyamide reinforced composite layer in sequence from outside to inside; and the polypolyamide reinforced composite layer comprises the following components: copolymerized polyamide, dendritic polyamidoamine, an anti-blocking agent and a slipping agent. According to the reinforced composite polyamide film, the composite strength is high through the cooperation of the polyamide layer and the polyamide reinforced composite layer, the problems of layering and delaminating of the composite filmcaused by low composite strength of the film can be solved, and the reinforced composite polyamide film can be suitable for various packaging fields such as water boiling and cooking, and has a wide market application prospect.

The invention relates to a double-metal loaded titanium dioxide nano porous ceramic catalyst as well as a preparation method and application thereof. The catalyst takes a titanium dioxide nano porousceramic membrane as a carrier and gold and copper double-metal nanoparticles as an active component; the preparation method of the catalyst comprises the following steps: 1) carrying out press filtering and sintering on a titanic acid nano-ribbon to obtain the titanium dioxide nano porous ceramic membrane; 2) loading the gold and copper double-metal nanoparticles on the ceramic membrane by adopting a one-step deposition-precipitation method; reducing through H2 to prepare the gold and copper double-metal loaded titanium dioxide nano porous ceramic catalyst. The double-metal loaded titanium dioxide nano porous ceramic catalyst prepared by the preparation method has the advantages that catalytic active metal particles are uniformly distributed and the component composition is quantified andcontrollable; the catalyst has a uniform porous structure and high porosity and has the advantages of high catalytic activity, selectivity and stability; the catalyst is easy to recycle and repeatedlyused and is suitable for large-scale industrial application.

A gate with double arch structure is prepared as connecting two ends of positive arch by chord; connecting positive arch, negative arch and chord by web member vertical to chord; applying horizontal connection rod to connect adjacent fish belly double-arch components and directly welding steel water-blocking plate at external of chord on each fish belly double-arch component.

The invention relates to the technical field of PET plastic waste recycling, in particular to a PET composite material prepared from recycled PET plastic waste and application thereof. The method includes the steps of: 1) washing, chopping and cooking waste PET plastic, performing cooling, then adding the material into a stirring device loaded with tetrahydrofuran, conducting heating, stirring, separation and flushing; 2) soaking the treated PET plastic fragments with sodium hydroxide, then performing soaking and washing with a hydrochloric acid solution, conducting cleaning, drying and melting, then adding a modified elastomer, and performing stirring to obtain a mixture A; 3) adding filler into the mixture A, and performing heating and stirring to obtain a mixture B; (4) adding a coupling agent, a lubricant and an antioxidant into the mixture B sequentially, conducting heating and mixing, and then adding a curing agent for mixing to obtain a mixture C; and (5) putting the mixture C into extrusion equipment, and conducting extrusion and granulation. The method adopted by the invention has high recycling rate, and the prepared PET composite material has excellent mechanical properties.

The invention relates to a serrate double-layer wire mesh corrugated packing which forms a serrate corrugated packing sheet structure by mechanically rolling double-layer wire mesh materials, wherein the top end of the wave crest and the top end of the wave trough of a corrugated packing sheet are respectively formed by connecting smooth arc surfaces, and an arc serrate corrugated structure with a smooth tooth top is formed, and a formed corrugated ridge and the axial direction of the packing form an included angle. Compared with the prior art, the serrate double-layer wire mesh corrugated packing is easy to manufacture, excellent in fluid mechanics and mass transfer performance, especially applicable to separating of small-coefficient mixtures which are difficult to separate, such as separation preparing of isotopes, and capable of being popularized and used in the precise separation field of traditional purification of flavors, fragrances and medical intermediates.

A reactor adopting gas-liquid-solid three phases as reaction materials is applicable for gas-liquid-solid three-phase reactions with a temperature of 0-400 DEG C and a pressure of 0-30.0 MPa. The reactor has characteristics of excellent hydrodynamics performance and high mass transfer efficiency, and can be used for an ethylenediamine preparation reaction adopting ethanolamine and ammonia as raw materials under a hydrogen present condition.

The invention discloses an outline of an oceanographic engineering ship. A head part of the engineering ship is provided with a forward bent turtle back type spherical head; the spherical head is provided with a peach-pit type cross section and a V-shaped forebody; the outline of the head part is smoothly transited from a head shoulder part to a ship middle part; the bottom of a middle section of the ship is made into a bevel type bilge and is respectively and gradually transited from a ship head section and a stern section to a circular bilge along a longitudinal direction; large-size triangular box-shaped bilge keels are arranged on two sides of the bevel type bilge at the bottom of the middle section; a bottom longitudinal flow barge outline is adopted in a middle tail part of the ship; and the bottom is linearly warped upwards. The outline of the oceanographic engineering ship meets the requirements of energy conservation and environmental protection of the oceanographic engineering ship while efficiently reducing the unavoidable responding amplitude for terrible weather and marine environment of the oceanographic engineering ship, thereby achieving an excellent fluid dynamical property, reducing resistance by 19%, promoting 0.5 times of shipping speed and being characterized by safety and reliability.

The surface processing method of superfine silver powder includes the following steps: preparing superfine silver powder via dissolving silver nitrate in reducing tub, adding polymer as protecting agent and reductant via stirring, regulating pH value to deposit silver grain, washing and pumping filtering; wet milling inside a stainless steel ball mill with mixed agate balls of 3-30 mm diameter and ball milling assistant; and separating the mill balls and milled powder, washing mill balls and ball mill with distilled water, merging powder and liquid and stoving. The silver powder thus prepare may be used in producing electronic slurry with greatly raised performance.

The invention discloses a preparation method of antibacterial and anti-thermal radiation aerogel, and relates to the technical field of thermal insulation materials. The preparation method of the aerogel comprises the following steps of sol preparation, wherein a silicon-containing solution is prepared with sodium silicate as the raw material and ethanol as a solvent, a hydrochloric acid solutionis added to enable the pH value to be 6.2-6.5, and then titanyl sulfate is added and uniformly stirred at normal temperature to obtain sol; preparation of mixed solution sol, wherein an infrared radiation blocking agent is added into the sol, and ultrasonic vibration is conducted; aging, wherein the mixed solution sol is injected into a mould under the vacuum state, pre-aged and placed at normal temperature for ageing; water heating; solution replacement; drying, wherein a supercritical fluid is used for drying. The aerogel prepared through the method is high in porosity, small in pore size, good in antibacterial property, low in heat conductivity and capable of saving energy and isolating heat.

The invention discloses a bionic fish propelling device which comprises a bottom plate, the bottom plate is provided with a flow guide plate and a supporting column, the top of the supporting column is provided with a concave guide rail block, the concave guide rail block is provided with a sliding groove, a concave clamping rod is installed in the sliding groove of the concave guide rail block in a sliding mode through a sliding block, and the concave clamping rod is provided with a fish-tail-imitating elastic plate. The tail portions of the two fish-tail-imitating elastic plates are connected, the tail portions of the two fish-tail-imitating elastic plates are connected with tail fin-imitating trapezoidal elastic plates, a first V-shaped elastic supporting plate and a second V-shaped elastic supporting plate are arranged between the two fish-tail-imitating elastic plates, two driving devices are installed on the bottom plate, and push rods of the two driving devices are hinged to the corresponding concave clamping rods. According to the bionic fish propelling device, passive staggered propelling deformation of the crossed fishtail-imitating elastic plates is utilized, the similar fishtail swimming posture is achieved, and the excellent hydrodynamic characteristic can be shown; multi-frequency propulsion and stepless steering can be achieved through driving of the double water-imitating servo motors.

The invention provides a special shaped surface coal leveling device and a use method thereof, which belongs to the field of mechanical design, in particular to the technical scheme of the device capable of making the top surface of the coal smooth and uniform through smoothly pushing the coal arranged on a train to side gaps inside a train body and the use method thereof. The invention is characterized in that the device capable of making the top surface of the coal smooth and uniform through smoothly pushing the coal arranged on the train to side gaps inside the train body mainly comprises a special shaped surface coal leveling scrapping plate, a cross beam, an upper coal blocking plate, four groups of pulley mechanisms and a rib plate. The invention uses the mathematical feature of the continuous second derivatives of a special shaped curve surface for making the scrapping plate to present a special shaped surface shape, so the scrapping plate has good fluid dynamics performance, and the forward moving action force of the train is used for smoothly pushing the coal in the middle of the train body to both sides of the train body. Thereby, the efficiency and the quality of the coal loading on the train are improved, and the defects of low speed, high cost, high work intensity and low coal leveling quality of manual auxiliary coal leveling are overcome.

A control valve for a fluid flow, comprising: a valve body (102, 402, 602, 802, 1002) that defines an inlet (103, 403, 603, 803, 1003) and an outlet (104, 404, 604, 804, 1004) for the fluid, an obstructer (105, 405, 605, 805, 1005) inserted in the valve body (102, 402, 602, 802, 1002), and an actuator system (106, 406, 606, 806, 1006) configured for reversibly translating the obstructer (105, 405, 605, 805, 1005) between a first position, in which the obstructer (105, 405, 605, 805, 1005) allows the passage of the fluid between said inlet (103, 403, 603, 803, 1003) and the outlet (104, 404, 604, 804, 1004), and a second position, in which the obstructer (105, 405, 605, 805, 1005) prevents the passage of the fluid between the inlet (103, 403, 603, 803, 1003) and the outlet (104, 404, 604, 804, 1004); the control valve further comprises a turbine rotor (109, 409, 609, 809, 1009) housed inside the valve body (102, 402, 602, 802, 1002), wherein the rotor (109, 409, 609, 809, 1009) comprises a plurality of blades and is configured for continuously rotating under the action of the fluid flowing between the inlet (103, 403, 603, 803, 1003) and the outlet (104, 404, 604, 804, 1004), the rotor (109, 409, 609, 809, 1009) rotating about an axis of rotation substantially aligned with the direction of translation of the obstructer (105, 405, 605, 805, 1005).

The invention discloses a chromium-based metal organic skeleton composite material for adsorbing and separating palladium. The composite material is composed of a chromium-based metal organic skeletonand alginic acid. The invention also discloses two preparation methods of the composite material. The preparation processes involved in the invention are simple to operate, and have mild conditions and low costs; and the chromium-based metal organic skeleton composite material prepared by the optimized preparation process realizes selective adsorption of the palladium ions, has large adsorption capacity, and can be reused.

The invention relates to a drained style sawtooth-shaped corrugated filler. The corrugated filler is a metal sheet or a plastic sheet which is pressed to be a sawtooth-shaped corrugated sheet; a formed corrugated chine line and a transverse extending direction of the filler form an included angle; the two ends of the corrugated chine line are in circular arc transition and the corrugated chine line is perpendicular to the transverse extending direction of the filler (namely parallel to axial direction). Compared with the prior art, according to the drained style sawtooth-shaped corrugated filler, the flowing direction change of fluid at a filler surface is stable, so that pressure drop loss is less, the shear stress between a gas phase and a liquid phase is reduced, and the flowing speed of the gas phase can be reduced. In addition, because of a sawtooth-shaped channel structure, liquid phase fluid can form a large wetting area at the filler surface. Compared with the existing filler technology, the filler has excellent fluid mechanics characteristics, the pressure drop loss of a filler sheet during a gas and liquid mass transfer process is reduced, energy is saved and consumption is reduced, and meanwhile mass transfer separation efficiency is improved.