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46results about How to "Convenient and smooth" patented technology

Fabricated building intelligent management method and system based on BIM model

The invention provides a fabricated building intelligent management method and system based on a BIM model, and the method comprises the steps: installing a sensor at a collection point, and collecting the position, angle, size and other sensing data in real time; preprocessing the collected sensing data, and carrying out cross validation on the preprocessed sensing data; calculating an actual error of each acquisition point of the preprocessed sensing data according to a cross validation result and a target error range, and generating an error analysis report; the result of the error analysis report is compared with the BIM model, and the difference between the actual component and the design model is displayed; and according to a comparison result, a correction or adjustment measure is formulated for the acquisition points of which the errors of each error analysis report exceed an acceptable range. The system comprises an equipment layout module, an error analysis module and an adjustment and correction module. The method plays an important role in improving the construction efficiency, quality and safety; and a closed loop is formed through data acquisition, analysis and feedback.
Owner:ZHEJIANG CONSTRUCTION IND ASSOCIATION +1

Engineering cost data intelligent management method and system based on Internet search service

ActiveCN119130020AConvenient and smoothSmooth and reasonable configurationDigital data information retrievalOffice automationInternet searchingLinguistic model
The invention relates to the field of intelligent data management, in particular to an intelligent engineering cost data management method and system based on Internet search service. The method comprises the following steps: acquiring engineering project retrieval input input by a user, capturing engineering cost project data based on an internet search service, and then performing semantic expression perfection on the engineering project retrieval input by utilizing a large language model; sending the engineering cost project data and the engineering cost project data into a data processing and semantic understanding model based on artificial intelligence and a natural language processing technology for processing so as to capture fine-grained semantic features and retrieval demand semantic features of the engineering cost project; and performing fine-grained semantic query matching on the engineering cost project data by taking the retrieval demand semantic features as query features so as to decide whether to return the engineering cost project data or not according to the matching degree between the retrieval demand semantic features and the query features. Therefore, smooth promotion of an engineering project and reasonable allocation of resources can be ensured.
Owner:CHINA TUNNEL CONSTRUCTION CO LTD GUANGDONG

Code submission method, code submission system, computer equipment and storage medium

The invention relates to the technical field of computer software, and discloses a code submission method, a code submission system, computer equipment and a storage medium, and the method comprises the steps: setting a to-be-tested verification item set which must be verified, and setting a secret key generated by an ID number corresponding to a newly submitted code to carry out the encryption and decryption of a verification result, according to the method, authenticity and accuracy of verification results can be ensured, and it is judged that newly submitted codes are allowed to be merged only when research and development personnel really complete each test verification item and the verification result corresponding to each test verification item is successful, so that the quality and efficiency of code submission can be remarkably improved, and the efficiency of code submission is improved. Meanwhile, development work of each stage can be fully verified and monitored, various problems caused by code submission errors can be effectively reduced, the overall stability and reliability of a project are improved, and smooth promotion of the project is guaranteed.
Owner:GUANGDONG RUIQIN TECH CO LTD

Method and device for measuring joint fissure connectivity rate of tunnel surrounding rock tunnel face and storage medium

The invention belongs to the technical field of geological engineering construction, and discloses a method and device for measuring the joint fissure connectivity rate of a tunnel surrounding rock tunnel face and a storage medium. The problems that in the prior art, a joint fissure recognition technology based on image processing is low in joint fissure recognition accuracy and analysis efficiency, the fissure connectivity rate cannot be accurately calculated, and automatic and standardized processes are lacked are solved. According to the scheme, firstly, a tunnel face image is segmented, and a tunnel face area image is extracted and preprocessed; dividing the preprocessed tunnel face area image, extracting fractures, and splicing the extracted fractures into a complete tunnel face joint fracture image according to a topological relation; then, carrying out vector measurement on fractures in the tunnel face joint fissure graph, grouping the fractures according to inclination angles through a clustering algorithm, and removing interference fractures; and finally, by setting a virtual measuring line and adopting a shortest path method, calculating the fracture connectivity rate on the strip where the virtual measuring line is located under the condition of different strip widths.
Owner:CHINA HYDROELECTRIC ENGINEERING CONSULTING GROUP CHENGDU RESEARCH HYDROELECTRIC INVESTIGATION DESIGN AND INSTITUTE

Direct coal liquefaction residue solvent extraction deliming method, refined asphalt and application

The invention discloses a direct coal liquefaction residue solvent extraction deliming method, refined asphalt and application, and relates to the technical field of solid waste resource treatment. According to the method, process conditions and process parameters are reasonably controlled, the thermal dissolution effect of an extraction agent and the liquefied residues is improved, a scale inhibitor composed of a multi-element alkyl organic matter, an auxiliary and coking washing oil is mixed with the extraction agent, then the ground liquefied residues are added into a material obtained through mixing, and the extraction agent and the liquefied residues are mixed uniformly. The slurry is prepared by controlling the stirring speed, the reaction temperature and the like; due to the addition of the scale inhibitor, the concentration of the residue extraction liquid is improved, and the treatment capacity and efficiency are enhanced; and a filter used for precision filtration adopts a stainless steel metal sintered filter element, so that the filter is resistant to higher temperature and pressure, the service life can be prolonged, and the stripping of viscous materials such as asphaltene in the liquefied residues is facilitated. The ultralow-ash refined asphalt prepared by the method can be used as a high-quality raw material of a high-end carbon material.
Owner:CHINA SHENHUA COAL TO LIQUID & CHEM CO LTD +2

Final assembly equipment for spot welding and cutting automatic machine

ActiveCN224059177UFlexible adjustment of movement methodsPrecise motion control capabilitiesOther manufacturing equipments/toolsHydraulic cylinderMachine
The utility model relates to the technical field of spot welding and cutting, and discloses spot welding and cutting automatic machine general assembly equipment which comprises a first supporting plate, the upper surface of the first supporting plate is fixedly connected with a first hydraulic cylinder, the output end of the first hydraulic cylinder is fixedly connected with a first die, the interior of the first supporting plate is fixedly connected with a first connecting rod, and the first connecting rod is fixedly connected with a second die. And the outer wall of the first connecting rod is slidably connected to the interior of the first mold, a second supporting plate is fixedly connected to the lower surface of the first connecting rod, a sliding assembly is arranged on the lower surface of the second supporting plate, and the sliding assembly is used for driving materials to slide. According to the utility model, the electric push rod is started to drive the second mold to slide, so that the first sliding block slides along with the sliding of the second mold, finally, the purpose of sliding the second mold is realized, and when parts with different specifications and shapes are required to be combined by a general assembly, the pressing and sliding assembly can flexibly adjust the action mode according to the assembly process.
Owner:KUNSHAN YUDENGYI AUTOMATION CO LTD

A pet toilet that can quickly dispose of diapers

The present invention discloses a pet toilet capable of quickly disposing of diapers, comprising a first bottom basin, a second bottom basin and a third bottom basin, wherein the first bottom basin is hingedly connected to the third bottom basin, and the second bottom basin is hingedly connected to the third bottom basin; the third bottom basin comprises a garbage bag storage box, the top surface of the garbage bag storage box is rectangular, and a third anti-overflow edge is vertically arranged on two sides of the top surface of the garbage bag storage box away from the first bottom basin and the second bottom basin, and a storage groove is arranged in the garbage bag storage box, and a storage box cover is arranged on the top of the storage groove, and a cover opening is arranged in the middle of the storage box cover. Compared with the prior art, the advantages of the present invention are: simple structure, convenient use, pre-installed garbage bags make the whole process simple and smooth, and by turning over the bottom basin and then folding the used diapers, the pet owner does not touch the diapers throughout the whole process, which is clean and hygienic, and the anti-overflow sheet can avoid the trouble of subsequent treatment caused by the outflow of waste.
Owner:SHANGHAI ZHUFENG IND CO LTD

BIM-based traffic engineering construction progress management system

The invention discloses a BIM-based traffic engineering construction progress management system, and relates to the technical field of BIM. When the system runs, a feature vector FV1 is formed through a condition acquisition module, an influence factor IF of a construction progress is calculated, a preset construction plan progress PO is dynamically corrected, and a corrected predicted construction progress PD is generated; and the construction plan can be continuously optimized according to the actual situation. A feedback feature vector FV2 is formed by using field feedback, external and feedback conditions are combined to generate an influence sorting list WLB, the influence sorting list WLB and a preset condition influence progress threshold TZ are combined to generate a multi-level construction field progress evaluation strategy, and coping schemes under different scenes are provided. According to the method, the defect that traditional progress management is insufficient in response to emergencies is overcome, and through dynamic progress correction and automatic decision generation, the coping capacity of a traffic construction project facing complex external conditions is greatly improved.
Owner:SICHUAN ZHONGZHI HAOREN TECHNOLOGY CO LTD

Wall screw hole plugging device

The utility model relates to the technical field of building construction, and discloses a wall screw hole plugging device which comprises an abutting rod, clamping grooves are formed in the inner wall of the abutting rod at equal intervals, a fixing plate is fixedly connected to the end face of the abutting rod, a penetrating groove is formed in the center of the interior of the fixing plate, an elastic cylinder is attached to the surface of the fixing plate, and the elastic cylinder is fixedly connected with the abutting rod. A positioning rod is inserted into the abutting rod. Through the arrangement of the abutting rod, the fixing plate, the elastic cylinder and the like, after the abutting rod, the elastic cylinder and the abutting cylinder are arranged in the wall hole, the elastic cylinder can be deformed and the outer diameter of the elastic cylinder is enlarged by hitting the disc due to the extrusion of the abutting cylinder and the elastic cylinder, and the outer surface of the elastic cylinder tightly abuts against the inner wall of the wall hole; by means of the efficient mode, the whole construction progress can be obviously accelerated, it is effectively avoided that the follow-up working procedure is affected by wall hole plugging work delay, and it is ensured that the whole project is smoothly advanced according to the plan.
Owner:SHANDONG TONGJU BUILDING ENERGY SAVING TECH CO LTD

Internal circulation biomass fluidized bed device coupling coal-fired boiler gas supply device and method

The invention relates to the technical field of biomass fluidized beds, and discloses an internal circulation biomass fluidized bed device coupling coal-fired boiler gas supply device and method, the internal circulation biomass fluidized bed device coupling coal-fired boiler gas supply device comprises: a non-equidistant screw feeder for conveying biomass raw materials; and the output end of the non-equidistant spiral feeder is fixedly connected with the gasification furnace. According to the internal circulation biomass fluidized bed device coupling coal-fired boiler air supply device and method, the stirring device is arranged, air flows sprayed out through the oblique air spraying opening enable materials to generate rolling and fluidizing effects in a gasification furnace, the materials make more sufficient contact with the air, the reaction rate and gasification efficiency are improved, and the gasification efficiency is improved. The airflow can stir the materials, prevent the materials from accumulating or dead angles in the gasification furnace and keep the reaction environment in the gasification furnace stable, and the airflow can optimize heat transfer and material reaction and reduce energy waste, so that the efficiency and reliability of the whole system are improved.
Owner:JIAOZUO COAL IND (GRP) FENGYING ELECTRIC POWER CO LTD

Intelligent education question bank construction and reviewing system

The invention relates to an intelligent education question bank construction and reviewing system, and aims to improve the efficiency and quality of examination question generation and reviewing through automatic and intelligent means. The system integrates a plurality of functional modules such as test question automatic generation, question bank management, intelligent test paper composition, test paper release and recovery, automatic scoring and feedback and the like, and a complete education question bank construction and reviewing process is formed. The system has the remarkable advantages of high examination question generation efficiency, good examination question quality, accurate intelligent reading, convenient examination paper composition and examination paper marking functions and the like, provides powerful support for teaching management in the education field, is helpful for improving the teaching efficiency and quality, and promotes the comprehensive development of students.
Owner:TAIYUAN NORMAL UNIV

Non-equal electrode propulsion structure and method based on electrode erosion rule

The application discloses a non-equivalent electrode propulsion structure and method based on electrode corrosion rules, and belongs to the technical field of base plate glass manufacturing, which comprises electrodes, silver plates arranged between the electrodes, and propulsion modules arranged at the tail ends of the electrodes; the electrodes are composed of a plurality of electrode blocks, electrode blocks with the same or similar corrosion amounts form an electrode module; different electrode modules are provided with corresponding silver plate modules and propulsion modules; a corrosion amount calculation model of each electrode block of the electrode under different temperatures is established, and then the total propulsion amount of each electrode block during operation is calculated; meanwhile, electrode blocks with the same or similar corrosion amounts form an electrode module, the silver plate module and the propulsion module are designed according to different electrode modules, the non-equivalent and differentiated propulsion of the electrode blocks in the electrode is realized, the contact surface between the electrode and the glass liquid is ensured to be a plane at all times, the uniform distribution of the electrode and the glass liquid current is realized, the efficient utilization of each electrode block is realized, the service life of the electrode is prolonged, and the cost is reduced.
Owner:IRICO DISPLAY DEVICES CO LTD

Industrial juicer for deep processing of pennisetum

The present application relates to a kind of industrial juicer for deep processing of pennisetum, comprising: frame, feed hopper, pretreatment zone and residue-liquid separation zone are arranged in height on frame;Roller feeding mechanism, for material is rolled and delivered to pretreatment zone;Cutting material roller mechanism, including cutting plate being arranged in pretreatment zone, the outside of cutting plate can be movably installed cutting blade, and the bottom side of cutting blade is installed broken material compression roller;Hot softening guide mechanism, for heating softening treatment to material after roller pressing and conveying it to centrifugal separation zone;Juice separation device, including primary filter cartridge and secondary filter cartridge, the top of the secondary filter cartridge is closed and fixed with end cover plate, a plurality of residue outlets are formed in end cover plate, and lifting auger is rotatably arranged in the middle of end cover plate;Juice collection mechanism, for discharging and collecting juice.The present application can facilitate feeding and overall smooth progress of juicing process, and can effectively improve juicing effect and juicing efficiency.
Owner:INST OF SOIL & FERTILIZER FUJIAN ACADEMY OF AGRI SCI +1

A multi-test-bed railway vehicle test data integrated management system

The present application relates to a kind of multi-test bench railway vehicle test data integrated management system, belong to railway vehicle test data management technical field.The data acquisition module of the system is based on adaptive matching mechanism obtains multi-test bench data and completes local pre-processing;Data processing module constructs data correlation rule, generates dynamic cross-test bench data correlation atlas, realizes multi-source data fusion and value-driven storage scheduling by hierarchical fusion strategy;Core management module generates test task scheduling scheme and completes priority adjustment, constructs digital twin mapping and generates whole-process traceability link;Interactive collaboration module generates adaptive data display scheme, pushes abnormal early warning and completes field operation interaction.The present application solves the problems of existing multi-test bench data integration, scattered management and poor traceability, realizes the standardization and intelligent control of whole-process railway vehicle test, and improves the test efficiency and data management reliability.
Owner:CHANGSHA YUANSHU INFORMATION TECHNOLOGY CO LTD +2

Casing pipe positioning and propelling device for water well drilling rig

The invention discloses a casing pipe positioning and propelling device for a water well drilling rig, and relates to the technical field of water well drilling rigs, the casing pipe positioning and propelling device comprises a bottom plate, and a positioning assembly is arranged at the top of the bottom plate. When the device is used, real-time image information of the bottom end of the casing pipe body and the ground drilling position is captured through the camera, the image information is transmitted to the PLC to be processed, then the PLC transmits an image to an external control console in a wireless mode to be analyzed, and by controlling feeding and retreating of the hydraulic oil cylinder, the casing pipe body can be controlled to be in a wireless mode. The bottom end of the casing pipe body is finely adjusted, so that alignment with a drill hole is achieved, accurate positioning of the casing pipe body is further achieved, under the action of the connecting assembly, the firmness of casing pipe body installation and the stability during moving are improved, the personal safety is improved, under the action of the positioning assembly, the position of the casing pipe body is automatically adjusted, accurate positioning is achieved, and the drilling efficiency is improved. The method is not influenced by human subjective factors, and the working efficiency is improved.
Owner:MENGYIN FEIDA MINE ENG MASCH CO LTD

Project resource management method and system based on resource histogram

The invention discloses a project resource management method and system based on a resource histogram, and the method comprises the steps: obtaining the quota demands of each type of resources in a project, and generating a histogram of the resource demands; calculating the number of construction machines which can be distributed every day according to the construction machine efficacy conversion table; filling a resource demand histogram by using the calculated number of construction machinery, and distinguishing satisfied and unsatisfied parts; when the resource demand is not completely met, generating prompt information to prompt a user to adjust resource allocation or increase construction machinery; and in response to the indication of the user, the histogram is displayed, the resource allocation is adjusted in real time, the resource utilization rate is optimized, and the project resource management becomes more efficient and accurate through a visual, automatic and intelligent resource management process. The method has the remarkable technical effects that the demand and distribution condition of resources can be dynamically displayed in real time, human intervention and calculation errors are reduced, and smooth project promotion is ensured.
Owner:CHINA HARBOUR ENGINEERING

General surgical retractor for whole process of kidney transplantation

The invention relates to the technical field of operation drag hooks, and discloses a kidney transplantation full-process universal operation drag hook which comprises a stand column, an adjusting block is arranged on the outer wall of the stand column through a locking assembly, a supporting block is fixedly connected to the top of the adjusting block, and a half gear is rotationally connected to one side of the supporting block; the side, away from the half gear, of the supporting block is rotationally connected with a second shifting piece, one end of the second shifting piece is fixedly connected with a limiting piece, the limiting piece is connected with the half gear in a clamped mode, the top of the half gear is fixedly connected with a connecting ring, and a drag hook piece is arranged in the middle of the connecting ring. One end of a second shifting piece is pressed to extrude a second spring, the second shifting piece extrudes the second spring and drives a limiting piece to move at the same time, so that the limiting piece is separated from a half gear, a connecting ring and an adjusting rod can be conveniently driven to move after the limiting piece is separated from the half gear, and then the angle of the drag hook can be conveniently adjusted.
Owner:THE THIRD AFFILIATED HOSPITAL OF SUN YAT SEN UNIV

Synchronous pushing device and method for pipe jacking construction

The pipe-jacking construction synchronous pushing device comprises a working well formed in the upper end of the ground and a pipe-jacking working face arranged on one side of the working well and used for containing a pipe-jacking pipeline, and further comprises a synchronous pushing tunneling unit which comprises a pipe jacking machine arranged at one end of the pipe-jacking working face and used for tunneling the pipe-jacking working face, the synchronous pushing assembly is arranged at one end of the pipe jacking machine and used for pushing the pipe jacking machine; and the main pushing unit is arranged in the working well and used for pushing the synchronous pushing tunneling unit and the pipe jacking pipeline along with the pipe jacking working face. Through synchronous coordination of jacking iron connection, pipeline butt joint and pipe jacking machine propelling, the construction process is optimized, the overall construction efficiency is improved, it is guaranteed that the pipe jacking machine can be stably propelled in the propelling process, the progress of jacking iron connection and pipeline butt joint is conducted synchronously, and it is guaranteed that pipe jacking construction is conducted smoothly.
Owner:CHINA CONSTR THIRD BUREAU GREEN IND INVESTMENT CO LTD

Comprehensive engineering management system based on engineering cost analysis

The invention relates to the technical field of engineering management, in particular to an integrated engineering management system based on engineering cost analysis, which comprises an engineering cost prediction module and a data correction module. And the data module is used for predicting weather prediction data and constructable time within construction time according to historical weather data and real-time weather data of a region where the construction object is located, and correcting the natural loss item according to a relationship between the constructable time and a standard construction period. The method can further improve the matching degree between the initial estimated cost and the actual cost, facilitates the more accurate cost management and flow fund management, and can help a manager to predict the possible conditions in the actual construction process to a certain extent. The method has positive significance for reasonably planning construction work, rationalizing construction expectation and promoting smooth progress of a project.
Owner:SICHUAN DINGSHENG ENG PROJECT MANAGEMENT CO LTD

Capacitor electrode sealing structure

The utility model discloses a capacitor electrode sealing structure, which relates to the technical field of electrode sealing, and comprises a capacitor plastic shell, a mounting hole site, an electrode main body and a closed efficiency raising mechanism, the efficiency raising mechanism is mainly composed of a sealing ring and a plastic positioning part, and a mounting ring groove is circumferentially arranged on the outer wall of the top of the electrode main body in a surrounding manner. The sealing ring is embedded in the mounting ring groove and abuts against the inner wall of the capacitor plastic shell, and the plastic positioning part is arranged in the contraction groove; according to the utility model, through the arrangement of the closed efficiency-raising mechanism, the sealing ring is embedded into the mounting ring groove in advance by means of the sealing ring in the closed efficiency-raising mechanism before the electrode main body penetrates into the mounting hole site, and after the electrode main body completely penetrates into the mounting hole site, the sealing ring is extruded and tightly clings to the inner wall of the bottom end of the plastic shell of the capacitor; the compression effect can significantly enhance the sealing performance, and ensures that the sealing effect between the capacitor plastic shell and the electrode main body reaches the design standard.
Owner:NINGGUO YUHUA ELECTRIC CO LTD

A translation type steel lifting device and lifting method thereof

The present invention discloses a translational steel section hanger, comprising a main hanger beam, a hanging leg, a jaw assembly and a driving mechanism. The main hanger beam is a horizontally placed crossbeam with hanging points symmetrically arranged on the top. The two hanging legs are symmetrically and slidably connected to the two ends of the main hanger beam. The driving mechanism is arranged on the main hanger beam and can drive the two hanging legs to extend or retract along the length direction of the main hanger beam. The hanging leg is an L-shaped structure and the outer end is connected to an end support plate vertically protruding downward. A plurality of jaw assemblies are regularly arranged on the end support plate. The working end of the jaw assembly faces inward and can be elastically inserted into the end pores of the steel section bundle. The translational steel section hanger of the present invention and the hoisting method thereof are convenient to hoist and highly efficient to use, and can hoist steel sections of different types and specifications.
Owner:HEBEI CHANGJIANG ZHONGYUAN RIGGING CO LTD

Intelligent port and navigation management service integrated platform system

The invention discloses an intelligent port and navigation management service integrated platform system. The platform system comprises a port and navigation operation monitoring module, a navigation channel integrated management module, a navigation intelligent transaction module and a port intelligent service module. The port navigation operation monitoring module is used for realizing unified operation monitoring of safety, production, scheduling and operation conditions of subordinate ports, channels, ship locks and logistics parks of the port affair group; the channel comprehensive management module is used for coordinating a channel maintenance project, a channel construction project and a related safety supervision project; the shipping smart transaction is used for optimizing the whole process of shipping transaction by creating a shipping transaction management platform; and the port intelligent service module is used for comprehensively supporting service requests of different business modes and different customer types of each business unit. According to the method, a unified data architecture and a business portal are constructed, cross-link and cross-system data sharing and one-stop operation are supported, and the problem that traditional business systems run independently and are difficult to co-schedule is solved.
Owner:CHINA TRANSPORT INFORMATION TECH GRP CO LTD +1

Precious metal wastewater separation and extraction device

The utility model discloses a precious metal wastewater separation and extraction device, which relates to the technical field of wastewater separation and extraction and comprises a separation tank, the top of the separation tank is fixedly connected with a top plate, the bottom of the top plate is fixedly connected with supporting columns in a circumferential array, and the outer sides of the supporting columns are fixedly connected with a bottom plate. A filtering mechanism is arranged below the separation tank, a stirring assembly is arranged in the separation tank, the filtering mechanism and the stirring assembly are matched for use, the filtering mechanism comprises a fixing ring, the outer side of a filtering disc is fixedly connected with a connecting block, and the connecting block is rotationally connected with the other end of a connecting plate. According to the precious metal wastewater separation and extraction device disclosed by the utility model, the filtering mechanism and the stirring assembly are arranged, so that sediments are effectively prevented from being attached to the surface of the filter screen and blocking holes in the surface of the filter screen, wastewater can smoothly pass through the filter screen, efficient separation and extraction are realized, the structure is simple, and the practicability is relatively high.
Owner:YANTAI YINUO ELECTRONIC MATERIALS CO LTD

A grouting system and method for housing engineering construction

The present invention is applicable to the field of construction engineering, and provides a grouting system and method for housing engineering construction, wherein the system comprises: a data collection and analysis module, a demand forecasting and procurement module, a meteorological monitoring and adjustment module, and an inventory management and recycling module. The present invention can efficiently and accurately provide the construction team with a forecast of material demand, ensuring that the project is carried out on time and as required. By analyzing historical data and current meteorological conditions, it is possible to effectively respond to different construction conditions and reduce the waste of resources caused by insufficient or excessive materials. In addition, real-time monitoring of the dynamic comparison of inventory status and material demand can minimize the cost of material procurement and improve the efficiency of capital use. Through such management, the construction team can focus more on construction quality, improve the overall efficiency of the project, and ensure the smooth progress of the project.
Owner:JIANGXI GUOLI CONSTR GRP CO LTD

Online rotary descaling nozzle assembly for shell and tube heat exchangers

This utility model provides an online rotary descaling nozzle assembly for shell-and-tube heat exchangers, relating to the field of descaling nozzles. It includes a spray cover and an inlet cylinder. A pressure cylinder is screwed onto the outer side of the inlet cylinder, a tension spring is welded to the top of the inlet cylinder, a shielding shell is welded to the outer side of the inlet cylinder, and a telescopic cylinder is slidably connected to the inner side of the inlet cylinder. A ring plate is welded to the bottom end of the telescopic cylinder, a rotating cylinder is rotatably connected to the inner side of the telescopic cylinder, a propeller plate is welded to the inner side of the rotating cylinder, and a guide plate is welded to the inner side of the telescopic cylinder. A rotating cylinder is welded to the bottom end of the spray cover. The arrangement of the spray cover, tension spring, telescopic cylinder, and rotating cylinder avoids the problem of traditional nozzles being easily clogged by external scale due to exposed nozzles, ensuring that the nozzle assembly can smoothly advance inward along the tube bundle. This solves the problems of traditional rotary descaling nozzles where the head position cannot break through scale blockages in the tube bundle and the exposed nozzle structure being easily clogged by external scale.
Owner:XUZHOU FEIDA GAS CO LTD

Urban shared bicycle putting method with optimal global benefit

The invention discloses an urban shared bicycle putting method with optimal global benefit, belongs to the technical field of shared bicycle dispatching, and is used for solving the problems of high total consumption and low resource utilization rate caused by lack of overall allocation of multiple shared bicycle companies in a city. The method comprises the following three steps. The method comprises the following steps: 1, collecting cost data of a shared bicycle company for putting a shared bicycle to a demand place; 2, establishing a putting model for overall planning of global benefits; and step 3, constructing a putting strategy based on a putting model for overall planning of global benefits. According to the method, unified allocation among a plurality of shared bicycle companies in a city can be planned as a whole, so that the total consumption and the resource use efficiency are more optimized.
Owner:HENAN UNIV OF SCI & TECH

Air leakage detection method for vehicle exhaust system

The invention discloses a vehicle exhaust system air leakage detection method, belongs to the technical field of vehicle exhaust system air leakage detection, and solves the technical problem that whether an exhaust pipeline leaks air or not is difficult to detect in an existing mode. The method comprises the steps that a tool exhaust pipe is manufactured and connected to a catalytic silencer tail pipe of the vehicle, and it is guaranteed that connection is firm and free of air leakage; a flow sensor in an exhaust pipe of the tool sends mass flow data to an acquisition instrument or a computer; an acquisition instrument or a computer acquires the exhaust mass flow of the turbine outlet through an OBD communication port, and the exhaust mass flow of the turbine outlet and the mass flow of the tool exhaust pipe are combined after being aligned; a time-mass flow curve graph is drawn on the same graph, and if the turbine outlet exhaust mass flow curve and the tool exhaust pipe mass flow curve coincide or are highly matched, it is indicated that no air leakage exists; otherwise, air leakage exists. Air leakage is detected without eye observation and sound listening, the accuracy is high, the efficiency is high, and the safety is good.
Owner:GUANGXI YUCHAI MASCH CO LTD

Big data-based scientific and technological project information management method and system

The application relates to the technical field of information management, and particularly discloses a scientific and technological project information management method and system based on big data, which comprises the following steps: S1, obtaining to-be-processed scientific and technological project information; S2, project information correlation deviation analysis; S3, constructing a scientific and technological project knowledge graph; S4, scientific and technological project information management risk analysis; S5, scientific and technological project information matching analysis; and S6, outputting a project information recommendation list. The application judges the correlation deviation of newly-added projects and performs optimization analysis, constructs a scientific and technological project knowledge graph, analyzes the management risk of scientific and technological project information, and further recommends scientific and technological project information to users. The application realizes accurate management and efficient utilization of scientific and technological project information by means of big data and knowledge graph technology, improves the scientific nature of project information management decision-making, reduces project risks, and provides strong support for scientific and technological innovation development.
Owner:SUN YAT SEN UNIV

Project external task progress monitoring system and monitoring method based on process management

The invention discloses a project external task progress monitoring system and method based on process management. The system comprises a task triggering unit, a collaborative operation unit, a progress calculation unit and a progress approval unit. The task triggering unit and the progress calculation unit are both connected to the collaborative operation unit, and the progress approval unit is connected with the progress calculation unit; the task triggering unit is used for generating and issuing an external task, and the collaborative operation unit is used for recording business and communication data of the external task in the collaborative operation process; the progress calculation unit is used for calculating the execution progress of the external task according to the business and communication data of the external task, and the progress approval unit is used for approving the calculation execution progress and the actual execution progress. According to the invention, the project is divided into a plurality of executable tasks through the project management unit, and the person in charge of the tasks is defined, so that the project management is clearer and more organized. The detailed management mode is beneficial for reducing management omissions and improving the project execution efficiency.
Owner:SHAANXI ZHONGDA HIGHWAY TECH SERVICE CO LTD