56results about How to "Guaranteed Effective Utilization" patented technology

The invention discloses an electrostatic spraying type unmanned helicopter pesticide applying system. The system comprises an unmanned helicopter having a landing gear, a supporting frame, a storage battery, a high voltage electrostatic generator, an electric diaphragm pump, a pesticide box and two sets of electrostatic spraying devices, wherein the supporting frame and the landing gear are fixed; the storage battery, the high voltage electrostatic generator, the electric diaphragm pump and the pesticide box are fixed on the supporting frame; the electrostatic spraying devices are symmetrically arranged on both sides of the unmanned helicopter; and a liquid outlet of the pesticide box is communicated with a liquid inlet of the electric diaphragm pump, and a liquid outlet of the electric diaphragm pump is communicated with the liquid inlets of the electrostatic spraying devices by a tee joint respectively. The system has the advantages that the size of the sprayed charged droplets is quite small, so the droplets are high in deposition effect and uniformly distributed, in particularly, the droplets can be attached to the back surfaces of leaves of plants, the effective utilization rate of pesticide is guaranteed and the drift loss of pesticide is lowered; and the spraying amount can be remotely controlled, so the spraying amount of the system can be changed along with the change of the flying speed.

The invention provides a video downloading system. The video downloading system comprises a data analysis unit, a detection unit, a downloading unit, a storage unit, a data comparison unit, a setting unit and a terminal, wherein the data analysis unit is used for ranking the continuity degrees of videos played and downloaded by a user; the detection unit is used for carrying out video updating detection according to the ranks; the downloading unit is used for downloading corresponding updated videos and storing the videos to the storage unit; and the data comparison unit is used for comparing data in the data analysis unit and the storage unit, reminding the user of timely deleting or automatically deleting the played videos by virtue of the setting unit and also reserving the videos that the user loves. The video downloading system has the advantage that convenience and rapidness are realized, management is facilitated, effective utilization of storage space is guaranteed, and user experience is improved.

The invention relates to a multi-channel real-time monitoring single-video-file recording method, which comprises the following steps that: (A) video signals of more than one video source are acquired, are encoded by using an encoder, and then, are outputted to a server, and the server outputs the video signals to a display device for displaying; (B) the display device displays the video signals of a current video source through a big window and displays the video signals of other video sources through small windows, and meanwhile, the server records the video signals of the current video source; and (C) the video source of the video signals displayed in the big window of the display device can be switched through operations, and the server records the video signals of the switched video source while the video source of the video signals displayed in the big window of the display device is switched until the next-time switching is carried out or the recording is finished. According to the multi-channel real-time monitoring single-video-file recording method, the switching of the video sources can be carried out by using the display device, and only useful video information is recorded, so that not only are the time and the work for follow-up editing saved, but also plenty of storage space can also be saved.

The invention discloses a steel wire rope picking waste acid and high zinc and lead-containing sludge co-disposal system and process and belongs to the technical fields of environmental protection and wastewater treatment. The steel wire rope picking waste acid and high zinc and lead-containing sludge co-disposal system disclosed by the invention comprises a mud acid stirring and dissolving device, a lead and zinc removal device, a flocculating agent preparation device, a hydrogen sulfide absorption device and a lead and zinc precipitation separation device, wherein the mud acid stirring and dissolving device is connected with the lead and zinc removal device through a pipeline; and the lead and zinc removal device is connected with the flocculating agent preparation device, the hydrogen sulfide absorption device and the lead and zinc precipitation separation device through pipelines. The steel wire rope picking waste acid and high zinc and lead-containing sludge co-disposal process disclosed by the invention comprises the following steps: stirring and dissolving mud acids, removing lead and zinc, preparing polyferric flocculants, purifying hydrogen sulfide tail gas and performing lead and zinc precipitation separation. According to the invention, steel wire rope picking waste acid and high zinc and lead-containing sludge co-disposal can be realized, the elements such as zinc and lead can be effectively removed, and industrial products with high additive values are prepared.

The invention provides an engine lubrication system. The engine lubrication system comprises a variable-displacement engine oil pump, a filter, an oil pan, a main oil line, a feedback oil line and a lubricating oil line, wherein an oil absorbing chamber of the variable-displacement engine oil pump is communicated with the oil pan; an oil discharging chamber of the variable-displacement engine oil pump is communicated with an oil inlet of the filter; an oil outlet of the filter is communicated with an oil inlet of the main oil line; the main oil line is branched to form the feedback oil line and the lubricating oil line; a pressure control valve is connected in series on the feedback oil line; an oil outlet of the feedback oil line is communicated with a feedback oil chamber of the variable-displacement engine oil pump; the lubricating oil line is communicated to a bearing of the variable-displacement engine oil pump. According to the engine lubrication system, engine oil pressure is adjusted by the variable-displacement engine oil pump and the pressure control valve, power consumption can be reduced, better lubricating effect is guaranteed, and damage to key parts of an engine is avoided; the bearing is lubricated with clean engine oil cleaned by the filter, thus, the bearing of the engine oil pump can be prevented from being worn by impurities, and the service life of the engine oil pump is effectively prolonged.

The invention relates to a data recovery method, data recovery equipment and a distributed storage system. The data recovery method comprises the following steps: when a distributed storage system loses three node data, data of an objective data storage node in the three node data is recovered according to data of a check node and a data storage node which are not lost, and the objective data storage node is determined according to the symmetry of lost data; residual lost data is recovered in a degraded manner according to data of the objective data storage node which is recovered. According to the embodiment of the invention, the check data is adopted to perform data recovery, so that the effective utilization rate of distributed systems, such as a cloud storage space, is guaranteed to meet the performance requirements of the distributed storage system; the objective data storage node to be recovered at first is determined according to the symmetry of lost data, and the lost three node data are recovered according to the check data and the not-lost data, so that the data recovery performance of the distributed storage system which loses three node data is improved.

The invention discloses a 20000-ton-annual-yield production technique of trimethylolpropane by a calcium method, which is divided into condensation, filtration, evaporation, calcium separation and rectification. The production technique is characterized by comprising the following steps: by using n-butyl aldehyde and formaldehyde as raw materials and industrial calcium hydroxide as an alkaline catalyst, carrying out condensation and formic acid neutralization reaction to obtain a trimethylolpropane crude product reaction solution containing byproducts ditrimethylolpropane and calcium formate;in the filtration process, separating out solid-phase residues from the reaction solution in a horizontal spiral centrifugal filtration mode; evaporating with a climbing-film evaporator, and sending the evaporative condensate back to the condensation technique; after entering the settling tank, continuously scraping calcium formate from the bottom of the settling tank, and recycling the calcium formate with a band filter; and carrying out rectification to obtain the trimethylolpropane product, wherein rectification column uses column refluxing and climbing film heating techniques, the deflector plate in the column is controlled, and meanwhile, a gas-liquid separator is mounted on a vacuum tube of the rectification column. The invention has the advantages of simple technical process, high labor rate, low production cost, energy saving and emission reduction.

The invention provides a production management method and device, and a computer readable storage medium. The production management method comprises the steps of obtaining a target product model corresponding to a current to-be-assembled product on a production line; determining a material slot position identifier corresponding to the target product model based on a mapping relationship between apreset product model and the material slot position identifier; generating a material taking control signal based on the determined material slot position identifier; and sending a material taking control signal to sorting equipment on the production line. Through the implementation of the scheme, the sorting equipment is controlled to differentially manage and control materials, meanwhile, mixedproduction is conducted on different types of products on a production line, production line changing and leftover clearing do not need to be conducted, the effective utilization rate of production resources is guaranteed, and the production and manufacturing cost is saved.

The invention discloses an adsorbent for mycotoxin in a feed and a preparation method thereof, aiming at providing an aluminosilicate adsorbent for adsorbing mycotoxin in a mouldy animal feed. The adsorbent is prepared by using medical stone powder as a raw material, immersing the medical stone powder in a certain ratio of antibacterial material quaternary ammonium salt-myristyl trimethyl ammonium bromide, stirring, washing, filtering, drying, and grinding into powder. According to the invention, the processed modified medical stone powder has an increased internal surface area and an enhanced adsorption capacity; by adding the modified medical stone powder in the feed, the animal immunity function and production performance can be raised, and the toxic action of mycotoxin in the feed to animals can be alleviated.

The present invention relates to immobilized yeast cell sodium alginate-polylysine microcapsule preparing process. On the basis of original immobilized alginate cell, one great power microcapsule preparing instrument is adopted to make the sodium alginate solution with homogeneously mixed yeast cell under high voltage electrostatic field form homogeneously distributed liquid drops of controllable particle size in 100-500 micron and form micro bead with fixing calcium solution. The surface of the micro bead has one layer of microcapsule polylysine film formed via ion complexing reaction, and calcium in calcium alginate gel is replaced with sodium citrate solution to form liquefied liquid environment inside the microcapsule. The present invention is prepared under mild completely physiological condition of pH 5.0-7.4, 4-30 deg.c and no shearing and vibration. The preparation process has yeast cell activity 100 % maintained and the culture process has cell leakage less than 10 %.

The invention discloses a self-walking greenhouse air curtain type electrostatic spraying vehicle. The self-walking greenhouse air curtain type electrostatic spraying vehicle comprises a vehicle frame on wheels, a support frame, a guide rail, an adjustable pesticide supply system, an adjustable air supply system, a lithium battery, a differential driver, a walking motor, a DC-DC voltage-reduction power supply module, a high-voltage electrostatic generator, an electrostatic spray head, a supervisory computer, an electromagnetic valve, a high-resolution camera and a long-range mobile phone terminal, wherein the vehicle frame is fixed to the support frame; the lithium battery, the differential driver and the walking motor are fixed on a bottom plate of the spraying vehicle; the guide rail, the DC-DC voltage-reduction power supply module and the high-voltage electrostatic generator are fixed on the support frame; the adjustable pesticide supply system and the adjustable air supply system are mounted on the guide rail; and the high-resolution camera is located at the top of the spraying vehicle, and the high-resolution camera, the supervisory computer and the electromagnetic valve are sequentially connected so as to control pesticide applying quantity. According to the self-walking greenhouse air curtain type electrostatic spraying vehicle disclosed by the invention, a long-range control technique, an image processing technique and an air supply electrostatic pesticide application technique are combined, so that the charging effect is good, and the electrostatic adsorption capacity is high; and compared with a conventional air supply manner, the self-walking greenhouse air curtain type electrostatic spraying vehicle has the advantages of being good in sprinkling quality and uniform in distribution of liquid spraying quantity. Under the premise that the utilization rate of pesticides and killing effects are guaranteed, operations of image collection, affirmation of insect pest grades, autonomic walking, and control on pesticide application are all automatically completed, so that the labor capacity is reduced, and the efficiency is improved.

The invention discloses immobilization cellular alginate capsules and method for preparing the same. The immobilization cellular alginate capsule of the invention comprises capsules film which is prepared from alginate and liquid cavity in which cells are dispersed. The capsule has good biocompatibility, suitable film depth and the environment in the capsule is liquid state so the mass transfer problem of carrier prepared in traditional immobilization technology is improved greatly and all cells in the capsule can maintain activity in cultivating process to ensure availability of cell. Furthermore, larger capsule has evident advantage in large scale preparation and reclamation aspects and has good applications foreground.

The invention relates to a self-adaptive wind-solar complementary heating system and belongs to the field of green energy resource utilization. The self-adaptive wind-solar complementary heating system comprises a wind driven generator, a photovoltaic power generation module, a controller, a boosting unit, a storage battery and loads. The input end of the wind driven generator and the input end of the photovoltaic power generation module are connected with the controller. The output end of the controller is connected with the boosting unit. The boosting unit is connected with the storage battery. The boosting unit traces the maximum power point of output power of the wind driven generator and the photovoltaic power generation module. The storage battery is connected with at least one load. According to the self-adaptive wind-solar complementary heating system, the boosting unit is adopted and can achieve two kinds of power input with different natures, the circuit structure of a traditional multi-input converter is simplified, voltage gain is increased, voltage stress of a switching device is lowered, the generating efficiency is guaranteed, influences on the stability of the system and the effective energy utilization rate at low output power are avoided, and the problems that carbon emission is large, consumption is high and energy is not saved by the adoption of traditional energy resources through a heating method in the prior art are solved.

The invention relates to a recombination structure and a structure separating and purifying method, which can solve the problem of low effective utilization rate of circulating mother liquid in the aluminum oxide production process. The structure separating and purifying method comprises the following main technological steps of (1) selecting to-be-separated liquid, analyzing and detecting the contents of sodium and aluminum by a conventional chemical titration detection method in the aluminum production process, obtaining the values a and k, and calculating and determining a quantitative preparation scheme of the ratio of sodium, aluminum and water structures; (2) concentrating the solution to reduce water, or adding water, inducing the self-assembly process for the recombination of the structure, and completing the recombination of the structure; (3) enabling the solution after self-assembly process to pass through the separating equipment, so as to obtain a high-sodium solution anda high-aluminum solution.

The present invention relates to a method to respond to TOCTOU attacks against TPM trusted computing in the environment of multiple virtual domains. The components of the method include the core files realized in a privileged domain and having enhanced function, virtual domain management tool with enhanced function, vTPM equipment procedure and privileged domain proxy module with enhanced function, and the memory monitor module realized in virtual machine monitor. An extra hypercall (T_hypercall) is defined between privileged domain and virtual machine monitor and is used to transfer information from privileged domain to virtual machine monitor. Ten virtual interrupts (T_vIRQ) are defined and used to transfer the information about a credible virtual domain from the virtual machine monitor to the privileged domain. Each virtual interrupt corresponds to an operating credible virtual domain. Through binding virtual TPM equipment ID No. and virtual interrupts, the method of the present invention solves the problem that the existing method to respond to TOCTOU attacks against trusted computing is unworkable in the environment of multiple virtual domains.

The invention discloses a smart library resource operation and supervision system. The smart library resource operation and supervision system comprises a client and a remote server side which is in communication connection with the client, wherein the client comprises a resource statistical analysis subsystem and a resource monitoring and pre-warning subsystem which is connected with the resource statistical analysis subsystem; the remote server side comprises a resource evaluation subsystem, a resource claiming subsystem and a support and analysis subsystem; and the resource claiming subsystem and the support and analysis subsystem are respectively connected with the resource evaluation subsystem. The smart library resource operation and supervision system provided by the invention is capable of effectively analyzing and assessing a plurality of digital resources, so as to promote the rationality and scientization of library digital resource construction, improve the digital resource utilization rate and reduce the purchase costs of the library digital resources.

Embodiments of the invention disclose a method and a device for data labeling, and an electronic device. The method comprises: obtaining a plurality of identification results after a plurality of rounds of identification on to-be-labeled data, the to-be-labeled data including at least a character; when different identification results exist in the plurality of identification results is determined,determining candidate results and interference results in the plurality of identification results; according to the candidate results and interference results, determining identification conditions of the to-be-labeled data, the identification conditions including successful identification and failed identification.

The invention provides an outlet housing for a range hood. The outlet housing comprises a lower housing connected with the range hood, an installation ring connected with an air outlet pipe, and valveblades capable of being turned over to be opened. The lower housing and the installation ring form an air outlet cavity of the outlet housing; an air inlet opening of the outlet housing is formed inthe bottom part of the lower housing; an air outlet opening of the outlet housing is formed in the top part of the installation ring; the valve blades are two valve blades rotating oppositely; the twovalve blades are connected into the air outlet cavity through a rotary shaft, and can be turned over to be opened or closed so as to connect or disconnect the air inlet opening and the air outlet opening; the two valve blades can form an opposite valve blade included angle ranging from 0 degree to 180 degrees; and the outlet housing outputs a corresponding detection capacitance value according tothe valve blade included angle. The two valve blades with different polarities can form a variable capacitance device, the outlet housing outputs the corresponding detection capacitance value according to the valve blade included angle, and the range hood can judge an open-close state of the valve blades according to the capacitance value detected in real time.

The invention discloses a process for sectionally reducing and leaching African heterogenite. The process includes the steps: in the first stage: performing reduction for longer than 2 hours, ball-milling the heterogenite, concocting the ball-milled heterogenite by the aid of water into ore pulp with needed solid-liquid ratio, heating the ore pulp to reach the needed temperature, and adding 0.5-1time of sodium sulfite or 0.4-0.8 time of sodium pyrosulfite or 0.4-0.9 time of hydrazine hydrate or hydroxylamine by weight of cobalt metals; in the second stage: performing leaching for 2 hours, adding 4 times of sulfuric acid by the weight of the cobalt metals after reduction, adding 0.2 time of sodium sulfite or 0.15 time of sodium pyrosulfite or 0.1 time of hydrazine hydrate or hydroxylamineby the weight of the cobalt metals, performing leaching for half an hour to finish leaching. The process has the advantages of less reducing agent loss, simplicity and low air environmental pollutionand cost.

The present invention relates to a slicer, a feeding device thereof and a slicing production line. The slicer comprises a rack, and a feeding mechanism and a cutting mechanism which are disposed on the rack. The feeding mechanism comprises a movable bin (103), a bottom plate (104) and a first drive device (11). The bottom plate (104) and the movable bin (103) form a material placing space, the bottom plate (104) is fixed on the rack (3), a material exit (102) of the material placing space is formed in the bottom plate (104) while a material entrance (101) of the material placing space is formed in the movable bin (103), the movable bin (103) is movably disposed on the bottom plate (104), and when moving on the bottom plate (104), the movable bin (103) pushes materials on the bottom plate (104) to move towards the material exit (102) formed in the bottom plate (104) and to reach the cutting mechanism through the material exit (102). The first drive device (11) provides power for the movable bin (103) to move on the bottom plate (104). Through split arrangement of the movable bin and the bottom plate, the slicer is simple in structure, convenient to feed and high in efficiency, quick-wear parts are reduced, manpower is saved, and personnel security is raised.

The invention discloses an existing line protective shed frame. The existing line protective shed frame is mounted on an existing steel girder chord and comprises at least two groups of protective shred frame units which are arranged at an interval; each protective shred frame unit comprises an anchoring device, a lower beam and a connecting component; the anchoring device is of a hollow frame structure and is detachably clamped on the existing steel girder chord; the lower beam is positioned below the anchoring device; and the two ends of the connecting component are respectively and detachably connected with the anchoring device and the lower beam. The embodiment of the invention provides the existing line protective shed frame; the protective shed frame is modularized; the at least twogroups of the protective shred frame units are arranged on the existing steel girder chord at an interval so that a supporting surface can be formed for carrying load; the protective shred frame unitscan also be mounted simultaneously, so that the mounting period of the conventional protective shed frame is effectively shortened; the effective utilization rate of a railway blockade point is ensured; and the interference to normal operation of an existing line is reduced.

The invention discloses an evaluation device and an evaluation method for a hydrogen peroxide hydrogenation catalyst prepared by using an anthraquinone method. The evaluation device comprises a reactor, a hydrogen supply end, a nitrogen supply end, a super constant-temperature water bath, a material receiving end, a blowoff valve, an exhaust tube and a connecting pipe, wherein the reactor is provided with a circulation bypass tube, a three-way connection valve and a sand core filtering plate; gas quality flowmeter controllers for regulating and controlling gas flow are respectively arranged at the hydrogen supply end and the nitrogen supply end, and are connected with a port of the three-way connection valve of the reaction device through connecting tubes; the blowoff valve is connected with the reactor through the exhaust tube; a circulation heater is connected with the reactor through the connecting tube. The evaluation device has the advantages of being simple to operate, good in gas-liquid mixing effect, visible in reaction effect, high in safety, high in controllability and the like, and is applicable to rapid and accurate evaluation on hydrogenation catalysts in laboratories.

The invention discloses immobilization cellular alginate capsules and method for preparing the same. The immobilization cellular alginate capsule of the invention comprises capsules film which is prepared from alginate and liquid cavity in which cells are dispersed. The capsule has good biocompatibility, suitable film depth and the environment in the capsule is liquid state so the mass transfer problem of carrier prepared in traditional immobilization technology is improved greatly and all cells in the capsule can maintain activity in cultivating process to ensure availability of cell. Furthermore, larger capsule has evident advantage in large scale preparation and reclamation aspects and has good applications foreground.

The invention provides a stacked battery. The stacked battery comprises a polar plate group, pressure frames, tabs and a shell, the pressure frames wrap the polar plate group and are connected into awhole through buckles, so that the polar plate group is mounted into a whole by utilizing the pressure frames, the situation that the active substances are softened and peeled off due to shaking amongpolar plates in the use process of the polar plate group is reduced, and the shell is mounted outside the pressure frames, and further the pressure frames or the polar plate group can be further insulated through the shell and are prevented from being damaged by the outside in the use process of the battery. The polar plate group can be fixed through the pressure frames, so that the distance between the positive plates and the negative plates can be unified, the condition that conductive channels become narrower due to thickening the polar plate group caused by the excessive positive plates and negative plates is avoided, and each conductive channel in the electrode plate can ensure the effective utilization rate of active substances of the battery, and the service life of the battery canbe prolonged.

The present invention discloses a system and method of passenger flow management based on vehicle terminals. The system comprises a background management center and a plurality of vehicle terminals arranged in different vehicles; each vehicle terminal comprises a passenger flow statistics module, a central processing unit, a real-time clock, a location module and a terminal communication module; the output end of the passenger flow statistics module is connected with the central processing unit, the central processing unit is connected with the real-time clock, the location module and the terminal communication module, and the terminal communication module is connected with the background management center through a wireless network; the central processing unit is configured to analyze a station where a vehicle is located at present and transmit real-time time, the station where the vehicle is located and the number of passengers in the vehicle to the background management center according to information provided by the location module; and the background management center is configured to receive information uploaded by each vehicle terminal, perform classification storage of the passenger flow according to the time and the stations and realize passenger flow integration management. The system and method of passenger flow management based on the vehicle terminals realize integration statistics analysis and form management of the passenger flow.

The invention discloses an electrostatic spraying type unmanned helicopter pesticide applying system. The system comprises an unmanned helicopter having a landing gear, a supporting frame, a storage battery, a high voltage electrostatic generator, an electric diaphragm pump, a pesticide box and two sets of electrostatic spraying devices, wherein the supporting frame and the landing gear are fixed; the storage battery, the high voltage electrostatic generator, the electric diaphragm pump and the pesticide box are fixed on the supporting frame; the electrostatic spraying devices are symmetrically arranged on both sides of the unmanned helicopter; and a liquid outlet of the pesticide box is communicated with a liquid inlet of the electric diaphragm pump, and a liquid outlet of the electric diaphragm pump is communicated with the liquid inlets of the electrostatic spraying devices by a tee joint respectively. The system has the advantages that the size of the sprayed charged droplets is quite small, so the droplets are high in deposition effect and uniformly distributed, in particularly, the droplets can be attached to the back surfaces of leaves of plants, the effective utilization rate of pesticide is guaranteed and the drift loss of pesticide is lowered; and the spraying amount can be remotely controlled, so the spraying amount of the system can be changed along with the change of the flying speed.

The invention provides an adjustable disassembled efficient energy-saving electric furnace which comprises a furnace body shell and an electric hot tray body. The furnace body shell comprises an uppershell and a lower shell. The upper shell is hollow and is filled with heat-isolating filler internally, and a mounting hole for mounting the electric hot tray body is formed in the middle position ofthe upper shell; a box body opened in the top is also arranged in the upper shell, and guide pipes communicating to the box body are separately arranged on two sides of the box body; a second supporting table and a third supporting table are successively arranged at the top opening of the lower shell from top to bottom, the upper shell is placed on the second supporting table, and a water tank isarranged in the lower shell; a plurality of heat-dissipating holes are formed in the peripheral side of the lower shell; a heat-dissipating structure is also arranged in the lower shell and comprisesa heat conducting body, a heat transfer plate and a plurality of heat-dissipating sheets arranged successively, and a second heat-isolating gap is reserved between the top of the heat conducting bodyand the bottom of the electric hot tray body. The adjustable disassembled efficient energy-saving electric furnace provided by the invention solves the problems that an existing electric furnace is inconvenient to detach and use, wastes energy sources and the like effectively.

The present invention relates to a method to respond to TOCTOU attacks against TPM trusted computing in the environment of multiple virtual domains. The components of the method include the core filesrealized in a privileged domain and having enhanced function, virtual domain management tool with enhanced function, vTPM equipment procedure and privileged domain proxy module with enhanced function, and the memory monitor module realized in virtual machine monitor. An extra hypercall (T_hypercall) is defined between privileged domain and virtual machine monitor and is used to transfer information from privileged domain to virtual machine monitor. Ten virtual interrupts (T_vIRQ) are defined and used to transfer the information about a credible virtual domain from the virtual machine monitorto the privileged domain. Each virtual interrupt corresponds to an operating credible virtual domain. Through binding virtual TPM equipment ID No. and virtual interrupts, the method of the present invention solves the problem that the existing method to respond to TOCTOU attacks against trusted computing is unworkable in the environment of multiple virtual domains.

The invention discloses an efficient design optimization method and system for an ultra-large variable impeller machine and application. The method comprises the following steps: setting an ultra-large variable impeller machine parameterization method; setting a CFD calculation model according to the design working condition of the optimization design; uniform initial point adding is carried out in a global range, and an evaluation value is calculated; a high-dimensional PCE fitting model is established globally; decomposing a high-dimensional problem into a plurality of low-dimensional sub-problems; performing independent proxy model optimization on all the sub-problems, and adding a global PCE model as a low-precision data source into an HK model in the optimization process to realize knowledge migration; combining all sub-problem optimization results to obtain a group of global samples and evaluating the global samples; updating the global model and repeating the steps until an optimization stopping condition is met; according to the design method, the variable number of the design can be increased on the premise that the sample number can be accepted, so that the degree of freedom of the design is expanded, the parallel expansion capability is very high, the design time is short, and the calculation efficiency is high.