96results about How to "Improve effective utilization" patented technology

The application discloses a control method of a clothes treatment device and the clothes treatment device, and the clothes treatment device comprises a dispensing box for accommodating a clothes treatment agent. The control method comprises the following steps: S1, acquiring an ambient temperature value T; and S2, if the acquired ambient temperature value T is less than a preset ambient temperature value T0, controlling water to be added into the dispensing box every interval time t, and the interval time t is less than a preset total water adding time t0. In the application, when the ambient temperature value T is less than the preset ambient temperature value T0, it indicates that the current ambient temperature is low, the viscosity of the liquid clothes treatment agent is large at low temperature, water is added into the dispensing box every interval time t, so that the clothes treatment agent in the dispensing box can be fully contacted with the water added into the dispensing box and dissolved, the dissolved clothes treatment agent is more easily washed into the clothes treatment device by the water added into the dispensing box and contacted with clothes, the clothes treatment agent is prevented from being left in the dispensing box, and the effective utilization rate of the clothes treatment agent is improved.

The utility model discloses a kind of devolatilization reaction devices suitable for high viscosity polymerization production, it is related to high molecular polymerization reaction device technical field.The utility model includes inner cylinder, and inner cylinder top end is equipped with stirring part two, and stirring part two bottom is equipped with membrane scraping stirring part, and stirring part two top end is equipped with stirring part one, and stirring part one bottom is equipped with reaction stirring part, and the axis of stirring shaft of stirring part one and stirring part two is collinear;Inner cylinder outside is provided with heat exchange jacket part;Inner cylinder side is provided with outer circulation devolatilization module, and outer circulation devolatilization module is used for circulating devolatilization.The utility model is in by installing coaxial reaction stirring part and membrane scraping stirring part in inner cylinder, and outer circulation devolatilization module is arranged on the outside of inner cylinder, so that the device can realize devolatilization treatment to internal residues while completing reaction, and the production efficiency of polymer is improved.

The utility model relates to chemical vapor deposition equipment technical field especially a kind of stable temperature measuring structure of DCE bottle, including: the bottle body of installation mouth configuration;Detachable connection has fixed component in the inside of the installation mouth, the inside fixed mounting of fixed component has thermocouple, the detection end of the thermocouple extends to the inside of the bottle body;Wherein, still fixed mounting has gas delivery pipe on the bottle body, the upper end of the gas delivery pipe is placed above the bottle body, in the utility model, inert gas is passed into bubble by being inhaled into the liquid in bottle body, and the physical movement of bubble is used to cause forced convection inside liquid, and this forced convection greatly accelerates the transmission process of heat from bottle wall to liquid center, so that the time of entire chemical source system to reach real thermodynamic equilibrium is effectively shortened, significantly reduces the invalid idle time of equipment due to waiting, directly improves the effective utilization rate of equipment and the overall productivity of production line.

The utility model provides a kind of high -efficient screening anti -blocking bar screen, belong to material screening technical field, it includes bracket, bracket is detachably installed with at least two sieve piece units along length direction, sieve piece unit is spaced apart and is provided with at least two long sieve rods along length direction, at least one annular stopper is arranged between any two adjacent long sieve rods, short sieve rod is spaced apart and is provided with at least one annular stopper along its length direction.The utility model has the beneficial effect that it can intercept sheet, needle and other unqualified materials while reducing excessive blocking of qualified materials, improving the flexibility of the screen surface vibration to optimize the anti-blocking performance, reduce material and maintenance costs, and achieve uniform distribution of materials, ensure the screening efficiency and processing capacity stability.

The present application relates to the field of biodiesel storage, and particularly relates to a biodiesel production and storage device, which comprises a storage tank, the storage tank is composed of a tank body and a cover, the cleaning part of the present application can simultaneously polish the inner ring surface and the inner bottom wall of the tank body, and can further polish the joint between the inner ring surface and the inner bottom wall of the tank body, so that the inner wall of the tank body is fully polished, and the one-time cleaning effect of the tank body is improved, meanwhile, the cleaning part as a whole can move downward along the vertical plane and reciprocate along the horizontal plane, thereby the polishing effect of the inner ring surface of the tank body is greatly improved through the double movements, the side dust collection plate in the present application is mainly used for sucking and removing the impurities removed from the inner ring surface of the tank body, and the main dust collection plate is mainly used for sucking and removing the impurities removed from the inner bottom wall of the tank body, so that the impurities are sucked and removed in multiple directions, the impurities sucking and removing speed is accelerated, and the impurities are also avoided from being re-missed in the tank body.

The application provides a high-salinity water desalination device with a compressed air energy storage system, and belongs to the field of desalination and water treatment. The device comprises: a compressor unit for compressing external air to a high-pressure state; a heat storage and heat exchange system for heat exchange treatment of the high-pressure air; an air storage chamber for storing the high-pressure air after heat exchange treatment; a heat release and heat exchange system for preheating the high-pressure air; an expander unit for work using the preheated high-pressure air and for power generation of an engine; an evaporation tank for flash evaporation of hot water generated after heat exchange treatment of the high-pressure air and for steam generation; and a multi-stage evaporation device for high-salinity water desalination using steam as a heat source and for fresh water generation. The application can use the excess compression heat generated by the compressor unit as working steam of the multi-stage evaporation device, thereby improving the energy efficiency utilization rate of the compressor unit and reducing the cost of high-salinity water desalination of the multi-stage evaporation device.

The application provides a microwave energy receiving system of a spatial solar power station of a multiplex ground photovoltaic power station, which comprises a photovoltaic power station basic unit, an energy receiving and converting unit, a grid-connected energy management unit and a power generation mode switching unit; the energy receiving and converting unit is arranged based on the photovoltaic power station basic unit; the energy receiving and converting unit comprises a receiving panel, a photovoltaic assembly and a microwave assembly; the photovoltaic assembly and the microwave assembly are arranged on the receiving panel; the output end of the photovoltaic assembly and the output end of the microwave assembly are connected in parallel to a bus line to form a photovoltaic output loop and a microwave rectification loop; the bus line is connected to the grid-connected energy management unit; the grid-connected energy management unit is connected to an energy storage device and / or a power grid; and the power generation mode switching unit is connected to the energy receiving and converting unit to control the energy receiving and converting unit to switch between a photovoltaic power generation mode and a microwave receiving mode. The application is arranged based on the photovoltaic power station, and the structural complexity and construction cost of the system are reduced.

The utility model discloses a 3D honeycomb novel structure of metal ion battery solves battery energy density and quick charge and discharge technical problem, including the positive plate and negative plate of battery are equipped with the ear and base body on, be equipped with a plurality of chambers on the base body, the chamber is regular hexagonal prism cavity structure, and one end is regular hexagon opening, the other end is regular hexagon seal; the base body of positive plate and negative plate the inner chamber wall surface of chamber is adhered to the positive and negative surface active material and constitutes the positive and negative; all the chamber symmetrical two -dimensional topology arrangement constitutes 3D honeycomb structure, the chamber of setting on the base body is single -sided or double -sided chamber structure.

This invention relates to the field of heat-resistant alloys and high-temperature alloys, and discloses a high-temperature resistant creep-resistant iron-nickel-chromium-based alloy and its preparation process. The alloy, by weight percentage, comprises Ni 25.0%–28.0%, Cr 18.0%–22.0%, C 0.06%–0.08%, V 0.50%–0.80%, N 0.10%–0.15%, Ce 0.015%–0.025%, B 0.005%–0.010%, Mn 0.3%–0.8%, and Si 0.1%–0.4%, with the balance being Fe and unavoidable trace impurities. The preparation process employs gradient-controlled pressure reverse nitrogen purging, delayed addition of a nickel-cerium master alloy and a micro-carbon boron-iron alloy before tapping, combined with a double-step isothermal carbon consumption treatment. This approach improves the effective utilization rate of nitrogen and rare earth elements, and enhances the high-temperature creep life, fracture elongation, and cross-sectional property consistency of large-section forgings.

The invention provides an intelligent linear cyclic lithium battery charging control method, which comprises the following steps of: constructing a charging channel selection network, sequentially gating a charging channel of a single lithium battery by adopting a fixed time slice polling mechanism, and executing three-section type charging control of pre-charging, constant-current charging and constant-voltage charging in each time slice, and meanwhile, by combining a voltage sampling scheme of a shared divider resistor and a multi-protection function, accurate and balanced charging of a plurality of lithium batteries is realized. The method has the advantages that the method can be suitable for a 9V power supply scene of three lithium battery packs connected in series, a DC-DC step-up / step-down circuit does not need to be configured, ripple waves, EMI interference and power loss caused by a switching power supply are eliminated at the same time, the system architecture is simplified, the cost is reduced, the charging safety of the battery packs is improved, and the cycle life of the battery packs is prolonged.

This invention discloses a cement-stabilized crushed stone base course material and its construction process, relating to the fields of road engineering and inorganic binder stabilized materials. It includes a load-bearing component A and a moisture-retaining component B, which are mixed separately and laid sequentially. Based on 100 parts by weight of the total dry mass of crushed stone aggregate and mineral shell water-retaining particles in the load-bearing component A, the load-bearing component A comprises 3.8–5.2 parts by weight of silicate cement and 0.4–1.2 parts by weight of mineral shell water-retaining particles. Based on 100 parts by weight of the total dry mass of crushed stone aggregate and mineral shell water-retaining particles in the moisture-retaining component B, the moisture-retaining component B comprises 3.8–5.2 parts by weight of silicate cement and 1.8–4.0 parts by weight of mineral shell water-retaining particles. By placing a larger amount of internal curing water in the upper part of the base course where evaporation is more significant, and placing only a smaller amount of water-retaining particles required for continuous hydration in the lower part of the base course, the effective utilization rate of internal water storage can be improved.

This invention relates to the field of integrated water and fertilizer irrigation and rhizosphere microbial regulation technology in agriculture, and discloses a device for regulating rhizosphere soil microorganisms in asparagus based on integrated water and fertilizer management. The device includes a substrate feeding hopper, a first auxiliary agent supply mechanism, a second auxiliary agent supply mechanism, and a turnover mixing chamber. The substrate feeding hopper is connected to a discharge transition cylinder at its bottom, which then communicates with the turnover mixing chamber. The first auxiliary agent supply mechanism outputs multiple guide pipes and connects to an underground drip irrigation network. A double-layered composite spiral propulsion blade is installed in the turnover mixing chamber to achieve solid-liquid kneading and mixing. The second auxiliary agent supply mechanism connects to the mixed liquid outlet component through a liquid phase pipeline to complete secondary confluence. This invention avoids elemental antagonism through multi-channel independent delivery, constructs a microbial carrier through deep solid-liquid mixing, and improves rhizosphere moisture uniformity through a spiral drip irrigation structure, significantly enhancing fertilizer utilization efficiency and the activity of the asparagus rhizosphere microecological environment, achieving a synergistic effect of water and fertilizer conservation with increased yield and quality.

The present application relates to the field of steam boiler, especially to an energy-saving steam boiler, comprising a boiler body and a flue gas duct installed on the boiler body; a filter plate one and a filter plate two are installed in the flue gas duct in sequence along the axial direction; the flue gas discharged by the boiler body passes through the filter plate one and the filter plate two in sequence; the filter aperture of the filter plate one is larger than that of the filter plate two; a spraying ring for spraying water mist is installed on the outer surface of the flue gas duct; the spraying ring is provided with a liquid inlet pipe and a plurality of spray heads; the spray heads penetrate into the flue gas duct; the spraying ring is located between the filter plate one and the filter plate two; the present application realizes the differentiated treatment of different size particle impurities, after the large particle impurities are filtered and intercepted by the filter plate one, the small particle impurities are screened out, the space between the filter plate one and the filter plate two is used to spray water mist on the small particle impurities, the effective utilization rate of the water mist is improved, and the energy is saved.

The invention provides a data processing method and device, electronic equipment and a storage medium. The method comprises the following steps: initializing a first semaphore and a second semaphore; calling a calculation thread to calculate the ith data block to obtain an ith calculation result; updating the value of the first semaphore to i; calling the first communication thread to load the (i + 1) th data block in the process of calling the calculation thread to calculate the ith data block, and acquiring (i-1) th network data; under the condition that the first communication thread obtains the (i-1) th network data, the second semaphore is updated to be i-1; when the first semaphore is greater than or equal to i and the second semaphore is greater than or equal to i-1, accumulating the ith calculation result and the (i-1) th network data to obtain ith accumulated data; and sending the ith accumulated data to the next computing node. According to the invention, the data calculation performance can be improved and the communication delay can be reduced.

The utility model relates to the technical field of mine air inlet anti -icing, specifically disclose a kind of wellhead anti -icing device based on vortex tube, including the air compressor for air compression and the gas storage tank of compressed air storage, the air compressor is communicated between gas storage tank, one end of the gas storage tank is provided with gas pipeline, one end of the gas pipeline is connected with shunt component, for distributing compressed air, the bottom of the shunt component is provided with vortex tube group, for separating cold and hot air;The vortex tube group includes one or more vortex tubes, and the multiple vortex tubes are arranged in parallel, and the vortex tube includes a sleeve ring.The utility model separates compressed air into cold and hot two air streams using vortex tube, without additional heating or refrigeration equipment, just rely on air compressor to provide compressed air, can simultaneously realize wellhead anti -icing and temperature regulation of underground equipment room, greatly reduce energy consumption.

The application discloses a pesticide synergist and a preparation method thereof. The pesticide synergist comprises a silanol-initiated polyether shown in formula I, an inositol phosphate-initiated polyether shown in formula II, an alcohol auxiliary agent and water. The silanol-initiated polyether shown in formula I and the inositol phosphate-initiated polyether shown in formula II are synergized, so that the adhesion, spreading, penetration and retention capacity of pesticide droplets on a target surface are significantly enhanced, and the utilization rate of the pesticide is effectively improved. The product has the advantages of low toxicity, environmental friendliness, multi-functional synergism, wide compatibility and the like, the preparation process is simple and stable, and the product is suitable for industrial production.

The application discloses a laser radar system and a laser radar control method. The system comprises a laser and at least one detection unit. In each detection unit, a circulator is used to receive outgoing laser from a first port of the circulator and output the outgoing laser from a second port of the circulator; a light splitting processing module is used to split the outgoing laser into local laser and emission light, emit the emission light to a scanning module, and emit the local laser to the second port of the circulator; the scanning module is used to emit the emission light to a target object and receive receiving light returned after the target object; a beam splitting module is used to perform beam splitting processing on the receiving light and the local laser, and output first light signals and second light signals; and a balanced detector is used to perform balanced receiving on the first light signals and the second light signals, and detect related information of the target object. The scheme ensures that the main polarization directions of the local laser and the receiving light are the same, and the balanced receiving mode is adopted, so that common mode noise is effectively suppressed.

A novel automatic reset fixture, relating to the field of aging testing equipment technology, is used for aging testing of devices. From bottom to top, it includes a base plate, a PCB matching board, and a probe limiting plate capable of supporting the device. The PCB matching board has a number of auxiliary probes, and the probe limiting plate has through holes for the auxiliary probes to pass through. Fixture assemblies are respectively arranged on both sides of the PCB matching board. The fixture assemblies include a lower support plate, an upper pressure plate, a flipping plate, a lower pressure plate, two guide shafts, and two compression springs. This fixture is adapted to the automation, flexibility, and intelligent production needs of modern manufacturing, achieving an overall improvement in production quality, efficiency, safety, and control levels through technological optimization, providing reliable tooling support for the stable and efficient operation of the entire production process.

The present application relates to the technical field of water body bacteria inactivation, and particularly relates to a bacteria inactivation method based on micro-nano bubble ozone synergistic reaction, comprising the following steps: mixing and conveying ozone gas dissolved water and initial sewage to a front reactor to output as dissolved air sewage; conveying the dissolved air sewage to a reaction tank; obtaining the pressure of a plurality of pressure sampling positions of a conveying pipeline conveying the dissolved air sewage; determining the merging state of micro-nano bubbles in the conveying pipeline; determining an abnormal area in the merging state of the micro-nano bubbles; determining the bubble merging amount of the abnormal area based on the obtained conveying pipeline pressure of the position where the connecting port is located and the average pressure in the conveying pipeline behind the connecting port; determining the dosing amount of alkaline substances and the replenishment amount of the dissolved air water; and continuously conveying the dissolved air sewage from the front reactor to the reaction tank to complete the bacteria inactivation operation, so that the cavitation effect of ozone micro-nano bubbles is strengthened and the solubility of ozone in water is improved.

The application discloses a kind of textile fabric printing and dyeing wastewater dynamic multistage depth processing system, and the application relates to wastewater treatment technical field, including reaction tank and control module, the sidewall of the reaction tank is provided with aeration assembly, the aeration assembly includes several vice gas pipes arranged in the lower side of reaction tank interior, several aeration holes are formed in the vice gas pipe for gas supply to reaction tank interior, the upper side of the reaction tank is provided with partition assembly, the partition assembly includes partition plate, the partition plate is used to partition the water body in reaction tank, the partition plate can be moved and lifted in the reaction tank, and the directional transfer of water body on both sides of the partition is realized by water pump, so that the effective reaction zone volume of the reaction tank can be dynamically reconstructed according to the actual water inflow, the water body is concentrated and the aeration assembly in the waterless area is closed under small water condition, so as to improve the effective utilization rate of unit aeration gas, and has the advantages of dynamic adjustment of effective reaction process and overall treatment efficiency.

This utility model discloses a folding cage, relating to the field of biosafety protective equipment technology. Specifically, the folding cage includes a front wall assembly, a rear wall assembly, and two side wall assemblies connected sequentially to form a closed loop structure. Both the front wall assembly and the rear wall assembly include folding structures to reduce the distance between the two side wall assemblies. It also includes a top wall assembly and a bottom wall assembly that are detachably connected and fixed to the two side wall assemblies. This folding cage adopts a foldable design to reduce its space occupation, thereby increasing the capacity of the cage in the sterilizer during disinfection, thus ensuring that the cage can be quickly disinfected.

The application discloses an ultrasonic fingerprint identification module, a display screen and electronic equipment, and belongs to the field of electronic equipment. The ultrasonic fingerprint identification module comprises a first electrode layer, a piezoelectric layer, a second electrode layer and a plurality of waveguide columns. The first electrode layer, the piezoelectric layer and the second electrode layer are sequentially stacked. One side of the piezoelectric layer is electrically connected with the first electrode layer, and the other side of the piezoelectric layer is electrically connected with the second electrode layer. The plurality of waveguide columns are arranged on the side of the first electrode layer away from the piezoelectric layer, and any two adjacent waveguide columns are spaced from each other. One end of each waveguide column is attached to the first electrode layer.

The invention discloses a molten salt electrolyte material, a preparation method thereof and a prepared fluorine ion thermal battery, a porous silicon dioxide material adsorbs molten eutectic salt at high temperature to prepare the molten salt electrolyte material, and the molten salt electrolyte material is applied to the fluorine ion thermal battery. In the obtained electrolyte material, silicon dioxide is used as a molten salt adsorbent and a flow inhibitor, and a larger specific surface area can adsorb a higher proportion of molten eutectic salt, so that the rapid conduction capability of fluorine ions in the electrolyte is enhanced. The silicon dioxide and the fluorine ion thermal battery positive and negative electrode material are inert in high-temperature reaction, so that side reaction in the discharge process is avoided, and the utilization efficiency of the fluorine ion thermal battery positive and negative electrodes is improved. In addition, the silicon dioxide with relatively strong adsorption capacity can block the dissolving shuttling of positive and negative electrode materials, so that the high-temperature no-load safety is improved, and the discharge performance of the fluorine ion thermal battery is further improved.

This invention relates to the field of metal recycling technology and discloses a method for recycling titanium scrap, comprising: a mechanical pretreatment stage for crushing and primary magnetic separation of titanium scrap; a cleaning and rinsing stage employing a four-step cleaning process combining ultrasonic waves and spraying with a synergistic chelating agent-biosurfactant-buffer system; water softening pretreatment for hard water environments using a sacrificial-functional double-layer chelating system and a ternary buffer system; a dehydration and drying stage for removing moisture; and a sorting and purification stage using multi-stage magnetic separation and various physical sorting methods to obtain high-purity titanium scrap products. This invention achieves the simultaneous execution of three functions: chelating agent complexation of metal ions, surfactant emulsification of oil contamination, and buffer stabilization of the reaction environment. The cleaning efficiency is 3-5 times higher than that of a single cleaning method, solving the problems of competitive consumption of chelating agents and poor cleaning process stability in hard water environments, thus realizing high-quality recycling of titanium scrap.

The utility model provides a hot compress bag extruding device, relates to the technical field of hot compress bags, and solves the problem that in the prior art, a traditional hot compress bag is too much in water in the preparation process, the use effect of the hot compress bag is affected, and the risk of scalding of a patient in the use process is caused. The hot compress bag extruding device comprises a barrel body, and the barrel body is provided with an inner cavity, a feeding port and a discharging port; the heating assembly is mounted in the cylinder body and is used for heating the hot compress bag placed in the cylinder body; the extrusion assembly comprises a fixing plate fixedly mounted in the inner cavity of the cylinder body and an extrusion plate used for placing the hot compress bag, and the extrusion plate is arranged in a sliding mode along the inner cavity and presses the hot compress bag by gradually approaching the fixing plate; the driving assembly is fixedly mounted on the barrel and used for driving the extrusion plates to get close to or away from each other; the controller is electrically connected with the driving assembly and used for regulating and controlling the driving assembly to drive the extrusion plate to move; through the synergistic effect of the heating assembly and the extrusion assembly, the moisture content in the hot compress bag is effectively controlled.

The application discloses a kind of low thermal conductivity high compression phase change microcapsule foam concrete and its composite dispersion-interface anchoring preparation method.The method prepares composite dispersion solution with non-ionic surfactant and silane coupling agent, carries out pre-adsorption coating treatment to phase change microcapsule, so that wet dispersion layer and interface anchoring layer are formed on its surface;Then, the treated phase change microcapsule is mixed with cement and prefabricated foam, and foam concrete is prepared by pouring, hardening and curing.The application can improve the dispersion stability of phase change microcapsule in cement paste, enhance the interface combination of phase change microcapsule and cement hydration product, reduce the thermal conductivity of the material and increase the compressive strength, and is suitable for building energy saving and temperature regulation type cement-based material.

The utility model relates to the technical field of die waste discharge, in particular to a stamping die waste discharge mechanism which comprises a three-stage fine filtration mechanism, an energy supply mechanism arranged in the three-stage fine filtration mechanism and a multi-stage vibration screening mechanism arranged on the three-stage fine filtration mechanism. The third-stage fine filtration mechanism comprises two side edge plates and two groups of discharging assemblies; two baffles which are symmetrically distributed are mounted on the inner sides of the two side edge plates; the discharging assembly comprises a protective shell movably installed outside the two side edge plates. An independent three-stage fine filtering mechanism is arranged under an assembling part of a machine tool die, and a multi-stage screening and vibrating mechanism for actively screening and vibrating waste materials is arranged on the inner side of the three-stage fine filtering mechanism, so that after a motor drives a crankshaft to vibrate the multi-stage screening and vibrating mechanism, active partitioned screening and vibrating can be achieved at the moment when the waste materials fall off; and the separated waste materials can be filtered by the three-stage fine filtering mechanism again until the gravels and the waste metals with different thicknesses are effectively distinguished and discharged, so that the effective utilization rate of the metal waste materials after being distinguished is improved.

The invention relates to the technical field of intelligent precise spraying, in particular to a continuous profiling variable spraying method and system based on RGBD visual inspection, and the method comprises the steps: designing a profiling sprayer based on RGBD visual inspection, collecting a tree crown image, and obtaining an RGB image and a depth image; preprocessing the RGB image and the depth image, and correspondingly determining an RGB image matrix and a depth image matrix; determining an ideal spraying coverage area, dividing the crown contour to obtain spraying segments, and determining a spraying positioning point and a positioning angle; the RGB image matrix and the depth image matrix are integrated, the volume and the leaf area of each spraying section are obtained by combining a profiling spraying machine, and the spraying amount and the wind speed of the spraying sections are correspondingly determined; and matching a nozzle in the profiling sprayer, and controlling the profiling sprayer to move towards the crown to a corresponding position to perform profiling variable spraying on the crown. The method for dynamically matching the spray head in the profiling spraying machine with the crown contour is achieved, and profiling variable spraying with the high pesticide effective utilization rate is achieved.

The application provides a natural eutectic solvent, a preparation method and application in extraction of blackcurrant anthocyanins, and relates to the field of green extraction of natural products. The solvent is prepared by taking L-proline as a hydrogen bond acceptor and lactic acid as a hydrogen bond donor. The application also provides application of the natural eutectic solvent in extraction of blackcurrant anthocyanins. The specific method comprises the following steps: thawing, beating, vacuum freeze-drying, crushing and sieving blackcurrant fruit in sequence to obtain blackcurrant fruit powder; mixing the obtained fruit powder with the natural eutectic solvent, uniformly mixing, then performing ultrasonic-assisted extraction, centrifuging after the extraction is completed, taking supernatant to obtain an anthocyanin extract, and obtaining an anthocyanin extract after concentration. The prepared natural eutectic solvent has the characteristics of high extraction efficiency and high anthocyanin retention rate, can significantly improve the stability to light, heat and metal ions, and can effectively solve the problems of low extraction rate and easy degradation of anthocyanins in the traditional method.