12191results about How to "Increase contact area" patented technology

The invention relates to the technical field of sensor detection, and discloses a detection method and device based on a multi-mode gas sensor, and the method comprises the following steps: carrying out blending processing on a metal oxide semiconductor and a conductive material to obtain a bimodal nano composite material, and creating a multi-mode gas detection module, the preprocessed multi-mode signal data is acquired and obtained; acquiring and analyzing data of the temperature sensor and the humidity sensor to obtain environmental factor compensation parameters; performing adaptive calibration processing on the preprocessed multi-modal signal data according to the environmental factor compensation parameters to obtain calibrated multi-modal signal data; constructing a multi-input neural network model based on the calibrated multi-modal signal data, and training to obtain a gas recognition model; multi-mode signals collected and calibrated in real time are analyzed and judged based on the gas recognition model, gas type and concentration information is obtained, and high-precision and high-reliability gas detection is achieved.

The present invention relates to the technical field of waste gas treatment, and discloses a low carbonic acid tower for tertiary carbonic acid production, the low carbonic acid tower comprises a tower body, the inner wall of the tower body is provided with a plurality of groups of support frames, the support frames are internally provided with filler layers, the lower parts of the support frames are provided with distribution plates, and trickling ports are uniformly distributed at the bottom of a spray pipe, so that the tertiary carbonic acid production efficiency is improved, and the tertiary carbonic acid production efficiency is improved. According to the waste gas absorption tower, through the arrangement of the filter layer, dripped absorption liquid can better cover the interior of the tower body, so that waste gas and the absorption liquid can be better in countercurrent contact, when the absorption liquid flows through the arranged filler layer, the contact area of the absorption liquid and the waste gas can be increased, and an adsorption sieve in the filler layer can also adsorb some harmful substances in the waste gas; and the distribution plate is arranged below the spraying pipe, so that the absorption liquid can be secondarily distributed and is uniformly distributed in the tower body again, and the condition of non-uniform distribution of liquid drops is avoided.

The invention discloses a back contact cell, a photovoltaic module and a photovoltaic system.The back contact cell comprises first areas, second areas and isolation areas which are arranged on the shady face of a silicon substrate, the first areas and the second areas are alternately arranged, and the isolation areas are located between the first areas and the second areas; the first region comprises a first doped conductive layer, the second region comprises a second doped conductive layer, and the doping type of the first doped conductive layer is opposite to that of the second doped conductive layer; the side, close to the isolation area, of the first area is provided with a concave structure. According to the invention, efficient isolation of different doped regions on the back surface of the back contact cell can be realized, so that the photoelectric conversion efficiency of the back contact cell is improved.

The invention relates to a back contact battery, a manufacturing method thereof and a photovoltaic module. The back contact cell includes: a substrate; the first passivation contact structure and the second passivation contact structure are arranged in the first region and the second region respectively, the first passivation contact structure comprises a P-type first polycrystalline silicon doped conductive layer, and the second passivation contact structure comprises an N-type second polycrystalline silicon doped conductive layer; the first electrode and the second electrode are electrically connected to the first polycrystalline silicon doped conductive layer and the second polycrystalline silicon doped conductive layer respectively; the first area is provided with a suede structure, and at least part of the orthographic projection of the first electrode on the first surface is located in the setting area of the suede structure; or the second area is provided with a suede structure, and at least part of the orthographic projection of the second electrode on the first surface is located in the setting area of the suede structure. According to the back contact battery and the manufacturing method thereof, the contact loss of the photovoltaic module is relatively small, and the efficiency is relatively high.

The invention relates to the technical field of glass fiber detection equipment, and particularly discloses a glass fiber prepared finished product tensile strength detection device which comprises a base, a translation groove is formed in the top end of the base, two traction assemblies are slidably installed in the translation groove, each traction assembly comprises a T-shaped sliding block, and a U-shaped block is arranged at the top end of each T-shaped sliding block. A U-shaped groove is formed in the U-shaped block, a rotating shaft is rotationally installed on the U-shaped block, an upper clamping plate is fixedly installed on the outer wall of the rotating shaft and located in the U-shaped groove in the U-shaped block, and a fixed gear ring is further fixedly installed on the outer wall of the rotating shaft. According to the device, the upper clamping plate is controlled to move, the rotating plate can synchronously push the lower clamping plate and the rotating rod to rotate, the lower clamping plate and the upper clamping plate are attached to each other, glass fiber prepared finished products with different thicknesses are clamped and fixed, and the contact area of the glass fiber prepared finished products is effectively increased through triangular strips on the upper clamping plate and the lower clamping plate; and a glass fiber prepared finished product is stably clamped.

The invention discloses an injection filler and a preparation method and application thereof, the filler is polycaprolactone particles, the polycaprolactone particles are spherical particles, the particle size of the spherical particles is 20-100 [mu] m, and the polycaprolactone particles have rough surfaces or unsmooth surfaces. The polycaprolactone microspheres have rough surfaces or unsmooth surfaces, so that the contact area with cells is increased, the adhesion ability and residence time of the cells are improved, the affinity of the polycaprolactone microspheres is improved, and the growth of collagen can be stimulated and accelerated. In the preparation process, the dosage of each component is scientifically screened, and on the basis of controlling the viscosity of a water-phase solution, the spherical polycaprolactone particles which are regular, rough in surface and uniform in particle size are obtained in cooperation with a rapid membrane emulsification method.

The utility model relates to the field of solid hydrogen storage, and discloses a magnesium-based solid hydrogen storage tank, and magnesium-based solid hydrogen storage materials are stored in the hydrogen storage tank. A foam metal material with heat-conducting property is filled between the magnesium-based solid hydrogen storage materials. The utility model has the beneficial effects that the system heat exchange efficiency is improved, the hydrogen charging and discharging rate is increased, the cycle life is prolonged, and the safety problem caused by excessive extrusion on the container body due to expansion of the magnesium alloy material can be effectively prevented.

The invention discloses a communication network power distribution cabinet convenient for heat dissipation, and relates to the technical field of power distribution cabinets, and the power distribution cabinet comprises a composite mechanism. According to the communication network power distribution cabinet convenient to dissipate heat, through the design of a composite mechanism, the box body shell is used for storing electronic components, after long-time operation, the temperature in the box body shell rises, hot gas rises, and then the hot gas flows to the processing mechanism from the circular groove, so that the heat dissipation effect is achieved, and the internal temperature of equipment is reduced; the ventilation mechanisms are arranged on the two sides of the box body shell, so that the convection effect is achieved, the cold air flowing effect is improved, the cold air is located at the low position with the high density, hot air is squeezed upwards after entering the box body shell, the discharging speed is increased, and the heat dissipation efficiency is improved. The box body shell is supported through the supporting assembly, so that the effect of reducing deformation of the box body is achieved, and internal electronic elements are protected.

The rotary cross-flow ceramic membrane filtering device comprises a shell, a main shaft unit arranged in the shell and a power unit for driving the main shaft unit to rotate, the power unit provides rotating power for the main shaft unit and drives the filtering disc to rotate, the main shaft unit is installed in the shell and executes a specific filtering task, and the shell provides necessary support and protection for the main shaft unit and the power unit and controls inflow and outflow of materials. According to the rotary cross-flow ceramic membrane filtering device provided by the invention, the ceramic membrane filtering disc is arranged, so that the filtering efficiency and the system stability are improved, the operation cost is reduced, and the rotary cross-flow ceramic membrane filtering device is suitable for being widely applied to various industrial fields needing efficient filtering solutions.

The invention relates to the technical field of carton stacking, and discloses a carton production stacking device which comprises a mechanical arm, the output end of the mechanical arm is rotationally connected with a sliding seat, and the inner surface of the sliding seat is slidably connected with a sliding plate through a sliding block. The distance between the telescopic suction cups is changed, so that the adsorption stability of the telescopic suction cups to cartons of different sizes is improved, a first sealing plate and a second sealing plate block the bottoms of the telescopic suction cups, and the situation that in the placing process of the device, dust adheres to the telescopic suction cups, and the adsorption effect of the telescopic suction cups is affected is prevented; and a rotary hook lock resets and clamps a clamping shaft, the situation that dust enters a protection frame from a gap and is attached to the telescopic suction cup due to the gap between a first sealing plate and a second sealing plate is avoided, and then the protection effect on the telescopic suction cup is improved.

The invention relates to the technical field of extremely-low-temperature refrigeration equipment, and provides an annular heat exchange unit which comprises a flow channel box, and the two ends of the flow channel box are covered with an upper cover body and a lower cover body correspondingly; a cavity partition plate is arranged in the runner box to form an upper heat exchange cavity and a lower heat exchange cavity; two upper runners which are not communicated with each other are arranged in the upper heat exchange chamber; two lower runners which are not communicated with each other are arranged in the lower heat exchange chamber; the adjacent flow channel partition plates in the two cavities are arranged in a staggered mode to form a transition flow channel. The annular heat exchange unit further comprises two circulating pipe sets. Therefore, the two heat exchange channels which are not communicated with each other and are arranged up and down are formed in the runner box; media in the two heat exchange channels do not make contact with each other, and heat exchange is achieved through the flow channel partition plate in the flowing process. On the premise that the overall size of the runner box is not increased, two heat exchange channels which are arranged in an up-down staggered mode are formed in the runner box. The heat exchange efficiency is improved, and the space is saved. The invention provides a multi-stage heat exchanger and a dilution refrigerator.

The invention relates to a catalyst for ethylene oxide ring-opening polymerization and a preparation method thereof, and belongs to the technical field of high polymer material synthesis, and the catalyst is a composite structure based on a silicon dioxide nanoparticle loaded bimetal organic complex; a modified nitrogen-containing polydentate ligand is prepared by adopting a special method, is coordinated with metal ions through covalent bonds and is loaded on silicon dioxide nanoparticles; by utilizing the high dispersity and stability of the silicon dioxide nanoparticles and the synergistic catalytic effect of the bimetal organic complex, the catalytic effect is effectively improved, the polymerization process is accelerated, the polymerization stability is enhanced, the polymerization molecular weight is improved, and the distribution is narrow.

The invention relates to the technical field of wind power generation, and discloses a wind turbine generator set with a vibration reduction function and a construction method thereof.According to the wind turbine generator set with the vibration reduction function, a vibration reduction structure is additionally arranged, and the two elastic ends, arranged in the axial direction, of an elastic buffering piece are connected with the outer wall of a tower drum and the inner wall of a sleeve correspondingly; the elastic buffering piece can effectively absorb and relieve vibration of the sleeve, vibration impact borne by the tower drum is reduced, the overall stability of the wind turbine generator is improved, and safe and stable movement of the wind turbine generator is guaranteed. Compared with a conventional scheme that the diameter or the wall thickness of the tower drum is increased, the damping structure is simple in structure, convenient to install and maintain and low in cost.

The invention discloses a Fe-MOF derivative / biochar nano composite material as well as a preparation method and application thereof, and belongs to the field of degradation of organic pollutants in a water body. The invention aims to solve the problems of unstable structure, easy agglomeration and the like at high temperature. The preparation method comprises the following steps: by taking an Fe-MOF derivative as a precursor and charcoal as a carrier material, carrying out in-situ synthesis on Fe-MOF, and carrying out high-temperature calcination on the surface of charcoal (BC). The metal carbon-based composite material prepared by the method shows excellent catalytic performance in catalytic degradation of tetracycline in a water body. Meanwhile, the prepared multiphase composite catalytic material has good stability and cycle performance.

The invention relates to the field of sampling, in particular to a drilling and sampling device for road construction. The sampler comprises a frame and a sampling assembly arranged on the frame, the sampling assembly comprises a drilling cylinder and an inner cylinder, a plurality of drilling tools are hinged to the lower end of the drilling cylinder, the inner cylinder is coaxially inserted into the drilling cylinder, the inner cylinder is of a grating structure and comprises a first cylinder body and a second cylinder body, and a film is arranged in the inner cylinder. When a road surface part is drilled, the drilling tool is in a horizontal state, the contact area between the drilling tool and the road surface is large, large cutting supporting force can be kept, a drilling barrel is prevented from being stressed and deformed, when a roadbed part is drilled, the drilling tool is in an upright state, the contact area between the drilling tool and the roadbed is small, the cutting speed is increased, and the cutting efficiency is improved, so that different drilling requirements are met; meanwhile, when the roadbed part is cut, the inner cylinder is inserted into the roadbed in advance to support the roadbed, after drilling is finished, the thin film is pulled open to wrap the sample core, it is guaranteed that the distribution state of all layers of structures of the sample core is accurate, and the authenticity of the sample is guaranteed.

The invention discloses a high-efficiency multiphase flow classification and separation integrated treatment method for argillaceous sandstone uranium ore. The crushed argillaceous sandstone uranium ore mixed material is sequentially subjected to hydraulic polishing and cluster breaking treatment, high-frequency linear vibration grading treatment, first-stage multiphase flow rotational flow grading treatment, deep low-frequency efficient ultrasonic scrubbing treatment, second-stage multiphase flow rotational flow grading treatment, jet flow uniform mixing treatment, micro-current activating treatment, hardening and tempering thickening and efficient squeezing solid-liquid separation treatment. According to the invention, mud and sand deep stripping and material fine grading separation of the crushed argillaceous sandstone uranium ore are realized, meanwhile, the fine-particle argillaceous material is subjected to efficient uniform mixing activation and deep efficient dehydration, and four core materials, namely a coarse sand material, a fine sand material, tailing dry slag and a high-concentration uranium ore leaching solution, are finally formed through continuous work; finally, efficient multi-phase flow fractional separation, concentration and purification treatment of the argillaceous sandstone uranium ore is achieved, residues of uranium elements in tailings are reduced, and the deep extraction rate of uranium ore resources is increased.

The invention discloses a chemical tail gas purification and absorption device and method, and relates to the technical field of tail gas purification and absorbing.The chemical tail gas purification and absorption device comprises a treatment tank, a gas inlet is fixedly formed in the outer wall of the treatment tank, a gas outlet is fixedly formed in the top of the treatment tank, spraying tanks are arranged on the two sides of the treatment tank, and spraying pipes are fixedly mounted at the tops of the spraying tanks; a water pumping device is mounted between the spraying tank and the treatment tank in a communicating manner; the spraying device is arranged on the surface of the spraying pipe, the spraying device comprises a supporting frame, a driving fan, a fixing rod, a circular plate, a circular block, a spraying box, a fixing plate, an L-shaped plate, a semicircular plate and a scraping plate, purified gas is exhausted by driving the fan to rotate, and sprayed liquid is splashed out when impacting the L-shaped plate through dislocation of a spraying head and a circular hole, so that the spraying effect of the spraying device is improved. The sputtered liquid is wider, the spraying effect is improved by enabling the liquid to be sprayed more widely, and the absorption efficiency is improved.

The invention discloses equipment and a method for preparing spray condensation microcapsules, and relates to the technical field of spray condensation microcapsule preparation, the equipment comprises a melting homogenizing kettle and a condensing tower, a spray head is arranged in the condensing tower, and a movable spray mechanism used for enabling the spray head to move circumferentially and swing back and forth at the same time is mounted on the condensing tower. Through the arrangement of the movable spraying mechanism, the spraying head can spray material liquid drops in the condensing tower in a back-and-forth swinging manner while moving circumferentially, so that the material liquid drops can be uniformly dispersed in a wider area and can be in contact with more cold air, local supercooling or superheating is avoided, and a more uniform cooling effect is obtained; meanwhile, through the matched arrangement of the spiral blades, cooling airflow can spirally flow and be uniformly distributed, the gas-liquid contact area is increased, the gas-liquid contact time is prolonged, gas-liquid exchange is more sufficient, finally, it can be ensured that each material liquid drop can be sufficiently cooled, and the embedding efficiency and the quality of microcapsules are effectively improved.

The invention relates to the technical field of concrete tower footings, and discloses a fabricated prestressed concrete tower footing for a land wind turbine generator and a construction method, a bottom framework is placed in a foundation pit under the supporting action of a corresponding supporting frame, and an annular seat penetrates through the supporting frame and realizes positioning of the supporting frame; the inner framework is supported at the center in the outer framework; under the combined action of the top fixing mechanism and the bottom fixing mechanism, the outer framework and the inner framework are kept vertical. By arranging the inner framework, the outer framework can be supported, the inner framework and the outer framework form a whole after the concrete is solidified, and the overall structural strength is high. Under the combined action of the top fixing mechanism and the bottom fixing mechanism, the space between the outer framework and the inner framework can be ensured to be consistent up and down, and the relative positions of the outer framework and the inner framework are prevented from deviating during concrete pouring, so that the overall structural strength of the outer framework and the inner framework meets the requirement after the concrete is solidified.

The utility model belongs to the technical field of frame dismounting devices, and relates to a photovoltaic module frame dismounting device capable of self-adapting to glass breaking of various sizes, which comprises a working table, and a long-edge frame dismounting mechanism and a short-edge frame dismounting mechanism which are respectively arranged on the working table, the long-side frame disassembling mechanisms and the short-side frame disassembling mechanisms are arranged in pairs, the paired long-side frame disassembling mechanisms are distributed at the positions close to the long sides of the photovoltaic panel frame in a mirror image mode relative to the central position of the workbench, and the long-side frame disassembling mechanisms downwards press the photovoltaic panel and then outwards push out the long sides of the photovoltaic panel frame. The paired short-edge frame disassembling mechanisms are distributed at the positions close to the short edges of the photovoltaic panel frame in a mirror image mode relative to the central position of the workbench, and the short-edge frame disassembling mechanisms downwards press the photovoltaic panel and then push the short edges of the photovoltaic panel frame outwards. According to the utility model, the paired long-side frame dismounting mechanisms and the paired short-side frame dismounting mechanisms are respectively arranged, so that the four frames are dismounted, the cutting of four corners is not needed, the frame dismounting operation is simple, and the reutilization rate of the frames is improved.

The invention discloses a molecular sieve confinement platinum-based catalyst and application thereof in catalysis of waste plastics, the Pt-coated Hie-TS-1 catalyst is prepared through hydrothermal synthesis, the catalyst has a hierarchical structure, the contact area between the catalyst and polyethylene plastics is increased, the hydrocracking rate is increased, the pore channel selectivity for polyolefin is achieved, and the molecular sieve confinement platinum-based catalyst can be used for catalyzing the polyethylene plastics. Catalytic products are distributed and diverted to narrow distribution, alkane and olefin intermediates are selectively filtered in Pt-Hie-TS-1 according to the length and the size, the shape selectivity of C5-C7 olefins is adjusted, the selectivity of C5-C9 hydrocarbons reaches 94.9%, and the use amount of Pt can be reduced to 0.4; the obtained product has the highest liquid oil content, the total amount of liquid oil can reach 93.5%, and the catalytic effect is the best.

The invention relates to a manufacturing method of a solar cell and the solar cell, the back surface of the solar cell is provided with a first region and a second region, and a second electrode of the solar cell is arranged in the second region; the manufacturing method of the solar cell comprises the following steps: texturing a cell piece; carrying out boron diffusion on the battery piece; performing laser etching on the first region; the first area is subjected to groove type cleaning; and carrying out chain type cleaning on the second area. In the invention, the back surface of the battery piece is selectively etched through laser to remove the borosilicate glass layer in the first area and reserve the borosilicate glass layer in the second area, so that the first area of the battery piece is cleaned and polished in the subsequent preparation steps; the borosilicate glass layer of the second region protects the textured structure of the second region in the subsequent preparation step, so that the tunneling dielectric layer and the doped conductive layer in the second region also have textured structures, thereby increasing the contact area between the second electrode and the doped conductive layer, and improving the photoelectric conversion efficiency of the solar cell.

The invention discloses a solar cell which comprises a silicon substrate, the surface of at least one side of the silicon substrate is provided with a micro-suede of a sand dune-like structure, and a tunneling oxide layer is laminated on the micro-suede; the sand dune-like structure is provided with at least one vertex, and 3-6 curved side edges pass through each vertex; and the side edges are sunken towards the inner part of the sand dune-like structure. The invention also provides a preparation method of the solar cell. According to the solar cell, the surface reflectivity of the solar cell can be effectively reduced, and the characteristics of surface passivation, surface contact and the like are improved, so that the transmission efficiency and the collection efficiency of carriers are improved, and the short-circuit current density and the conversion efficiency of the solar cell are further improved.

The invention discloses a carbendazim production tail gas absorption treatment system, which comprises an absorption tower and an absorption liquid lifting device, the top end of the absorption tower is provided with a tail gas discharge port, the bottom end of the absorption tower is provided with a liquid discharge port, one side of the absorption tower close to the bottom end is provided with a gas inlet pipe, and one side of the liquid discharge port is provided with a circulation branch; the liquid outlet is connected with the liquid inlet end of the absorption liquid lifting device, the liquid outlet end of the absorption liquid lifting device is connected with a spraying pipe, one end of the spraying pipe extends to the position, close to the top end, in the absorption tower, and a sprayer is fixed to the end of the spraying pipe. An upper screen plate and a lower screen plate are respectively fixed below the sprayers in the absorption tower, and a filler is arranged between the upper screen plate and the lower screen plate. Through the design that tail gas makes contact with the absorption liquid from bottom to top and then makes secondary contact with the absorption liquid through spraying, the gas-liquid contact area is increased by combining the filler between the upper net plate and the lower net plate, the tail gas absorption efficiency is remarkably improved, carbendazim production tail gas can be effectively purified, pollution of harmful gas emission to the environment is reduced, and the environment protection requirement is met.

The invention discloses a stamping device for ferrous metal smelting and a stamping method of the stamping device, and relates to the technical field of stamping machining equipment.The stamping device comprises a bottom plate and side plates symmetrically fixed to the two sides of the top of the bottom plate, the top ends of the side plates are fixedly connected with a top plate, and the stamping device further comprises an adjusting assembly arranged in the middle of the bottom of the top plate; the adjusting assembly comprises a pressurizing air cylinder. The clamping assemblies are symmetrically arranged on the inner sides of the side plates, and each clamping assembly comprises a fixing sleeve and a connecting rod; one end of the connecting rod is fixedly connected with the fixing sleeve, the other end of the connecting rod is fixedly connected with a vertical rack, the middle of the inner side of the side plate is fixedly connected with a limiting sleeve, the vertical rack is slidably connected with the limiting sleeve, and the lower portion of the inner side of the side plate is rotatably connected with a lead screw. The problems that the extrusion force of the upper pressing plate is prone to being uneven in the stamping process, so that when the stamping speed is too high, stamped black metal is uneven in depth, deep or shallow, and the stamping efficiency and the qualified rate of products are affected are solved.

The invention discloses a blast furnace top feeding winch control system which comprises four multi-transmission high-performance motion control frequency converters, and wire inlet structures of the transmission high-performance motion control frequency converters specifically comprise a system wire inlet structure A, a system wire inlet structure B and a system wire inlet structure C, the A system wire inlet structure comprises an A system wire inlet cabinet, an A system first rectifier cabinet, an A system second rectifier cabinet, an A system first inverter cabinet, an A system second inverter cabinet and an A system resistor cabinet; and B, a system wire inlet structure. A winch control system is optimized, a PLC alternating-current variable-frequency speed regulation mode is adopted, the speed dynamic response is high, the overload capacity is large, operation is safe and reliable, and the PLC self-control technology, the position encoder measurement technology, the large-scale variable-frequency speed regulation dragging technology and the intelligent master controller are organically combined and applied; and the faults of galloping, sliding, derailing and the like of the skip car in operation are reduced through double closed-loop control and multi-section speed control of a current loop and a speed loop of the motor.

The invention discloses a punch forming device for producing an automobile engine oil pan, and relates to the technical field of punch forming, and the punch forming device comprises a composite mechanism. According to the punch forming device for production of the automobile engine oil pan, through the design of the composite mechanism, materials are placed in the processing mechanism and conveyed to the composite base through the processing mechanism, then a movable cross beam is controlled through a hydraulic column to enable a pressing module to extrude a bearing module, and therefore the punch forming effect is achieved; the effect of manually laying materials is reduced, potential safety hazards of operators are reduced, the operation environment is optimized, after long-time operation of the bearing module, parts can be seriously abraded, and therefore the stamping precision of follow-up materials is affected, the bearing module can be replaced, and in the process that the pressing module extrudes the materials towards the bearing module, the pressing module can be replaced, and the pressing module can be replaced. And the magazine mechanism contracts to store force, so that after stamping is finished, ejection is performed through the magazine mechanism, the effect of preventing material adhesion is achieved, and the subsequent operation efficiency is prevented from being influenced.

The preparation method comprises the following steps: mixing polysaccharide gum with water, carrying out wet ultrafine grinding to obtain an ultrafine polysaccharide gum aqueous solution, and uniformly infiltrating the polysaccharide gum into cellulose or derivatives thereof by adopting high-shear mixing to form micelles; and promoting the micelles to form a honeycomb structure through microwave vacuum drying, and finally spraying ultrapure water atomized by high pressure to the honeycomb micelles and drying to obtain the hydrogel for absorbing grease. The water absorption capacity of the prepared hydrogel reaches 100 times or above, the storage modulus is 1350 Pa or above, grease can be efficiently absorbed, and the hydrogel has wide development prospects in the field of weight-reducing medicine or food.

The invention provides a preparation method of a general flavone extract in abelmoschus manihot flowers, which comprises the following steps: A) crushing the abelmoschus manihot flowers, extracting with an alcohol solvent, filtering, and concentrating to obtain an extracting solution; b) purifying the extracting solution by adopting macroporous resin to obtain an eluent; and C) concentrating the eluent, and drying to obtain the traditional Chinese medicine composition. According to the method, diluted alcohol extraction and a high-speed homogenization-ultrasonic-assisted liquid phase extraction method (HSH-UAE) are adopted, so that the contact area of a solvent and the abelmoschus manihot flowers is increased, full contact of medicinal materials and the solvent is guaranteed, and flavonoid substances are dissolved more sufficiently, so that the extraction speed is increased, and the extraction efficiency is improved. Macroporous adsorption resin is selected for separation and purification, the purification effect is good, operation is easy, safety, no toxicity and no pollution are achieved, reuse can be achieved after slight treatment, and the production cost is effectively reduced. Compared with a traditional method, the method has the technical advantages that the extraction speed is high, the extraction yield is high, effective components are fully extracted and reserved, and the process is simple.

The present invention relates to a metal hydride hydrogen storage container which is easy to disassemble and can effectively exchange heat, and relates to the technical field of hydrogen storage containers, and in particular to a metal hydride hydrogen storage container which is easy to disassemble and can effectively exchange heat. The present invention comprises: a hydrogen storage alloy tank, a sleeve, a flange and a hydrogen valve; the hydrogen storage alloy tank is installed in the sleeve, and the flange is sealed and connected by a rubber gasket and flange bolts and nuts; a hydrogen valve is installed at the center of the flange; and the interior of the hydrogen storage alloy tank is filled with hydrogen storage alloy powder. The technical solution of the present invention solves the problems in the prior art that the hydrogen storage alloy generates stress on the inner wall of the container due to lattice expansion during the hydrogen absorption process, causing the container to deform and affecting the service life of the container; the hydrogen storage alloy has poor long-term cycle stability and needs to be frequently replaced; the hydrogen storage alloy has poor thermal conductivity and the hydrogen storage device needs to transfer heat to the outside world.