92 results about "Operating cost" patented technology

The invention discloses a thermal power generation scheduling and load distribution method and system based on an optimization algorithm, and the method comprises the steps: collecting unit operation data, load demand data and environmental protection constraint conditions of a thermal power generation system in real time, and carrying out the preprocessing of the data; a multi-objective optimization model is constructed based on the collected data, optimization objectives comprise fuel cost minimization, pollutant discharge minimization, load demand deviation minimization and start-stop cost minimization, and constraint conditions such as power balance, pollutant discharge and start-stop intervals are considered; an intelligent optimization algorithm is adopted to solve the optimization model, and an optimal scheduling scheme meeting constraint conditions is generated; and verifying the feasibility of the optimization scheme, if the constraint condition is satisfied, dynamically adjusting the generation power and the start-stop state of the unit, and carrying out dynamic optimization according to the real-time load demand and the operation state. According to the invention, the power generation efficiency can be obviously improved, the operation cost is reduced, the pollutant discharge is reduced, and the equipment start-stop frequency is optimized.

The invention relates to the technical field of subway tunnel ventilation and smoke exhaust, and particularly discloses a self-adaptive double-tunnel shared ventilation and smoke exhaust device which comprises a shell and a control cabinet, the left side of the shell is located in a left tunnel, the right side of the shell is located in a right tunnel, and a bidirectional fan is arranged in the center of the shell; the left line tunnel and the right line tunnel are both provided with air supply / exhaust outlets located in the front end and the rear end of the shell, circular air pipes are arranged at the two ends of the two-way fan and connected with the air supply / exhaust outlets of the left line tunnel and the right line tunnel through Y-shaped air pipes, and the air supply / exhaust outlets in the front end share a front sliding baffle capable of sliding along the front rail. And the air supply / exhaust outlets at the rear end share a rear sliding baffle plate capable of sliding along the rear track. By sharing the ventilation and smoke exhaust equipment, the number and investment of the equipment can be greatly reduced, the operation cost can be reduced, the efficiency of the ventilation and smoke exhaust system can be improved, and reliable technical guarantee is provided for long-term operation and maintenance of the subway tunnel.

An SMES joint planning method considering carbon emission comprises the following steps: step 1, building a ship integrated energy system model based on a multi-energy coupling principle, the model comprising an AC / DC hybrid ship power system architecture model, a ship energy equipment model and a ship navigation model; 2, establishing a double-layer optimization planning model considering carbon emission by adopting the ship integrated energy system model obtained in the step 1, optimizing equipment configuration at the upper layer of the model by taking the minimum total investment cost as a target, and optimizing an equipment scheduling strategy at the lower layer by taking the operating cost and the carbon emission as double targets; and step 3, solving the double-layer optimization planning model considering the carbon emission obtained in the step 2 based on a mixed integer linear programming method, and realizing collaborative optimization of optimal capacity configuration and an operation strategy of the system through a CPLEX solver.

The invention discloses a ventilation connecting structure and system for a large pipeline of a ship ammonia fuel engine, and belongs to the technical field of ships, the ventilation connecting structure comprises a first ventilation flange and a second ventilation flange which are connected in a paired mode, and an inner ring sealing structure is arranged at the contact position of the first ventilation flange and the second ventilation flange; an outer ring sealing structure is arranged outside the inner ring sealing structure, an annular discharging groove is formed between the inner ring sealing structure and the outer ring sealing structure, and a ventilation outlet and a cleaning opening are formed in the outer portion of the first ventilation flange and communicate with the annular discharging groove. The ventilation structure of paired installation flanges is simplified, the layout of a ventilation system is optimized, the manufacturing cost is low, and installation is convenient; the required negative pressure ventilation air quantity is small, the type selection capacity and size of each related device and accessory are small, and the initial investment cost, the later maintenance cost and the operation cost are low; ventilation air is distributed in a centralized mode, and through switching of on-off states of the ventilation stop valves, which group of flange connection in the system leaks can be distinguished and confirmed conveniently.

The invention discloses an unmanned aerial vehicle path planning method based on comprehensive risk cost, which can generate a low-risk unmanned aerial vehicle flight path. The method comprises the steps that firstly, an unmanned aerial vehicle path planning model containing comprehensive risks and operation cost is constructed, the model comprises a target function and constraint conditions, and the target function is composed of airspace risk cost and unmanned aerial vehicle transportation cost; then, setting three-dimensional constraint conditions including a voyage constraint, a turning angle constraint and a maximum takeoff weight constraint, and constructing a feasible solution space conforming to physical characteristics of the unmanned aerial vehicle; then, performing initial path planning based on a heuristic search weight-A * algorithm with weight, and generating an initial feasible path meeting a constraint condition by dynamically adjusting a heuristic function weight balance path length and risk cost; and finally, based on a parallelogram rule, optimizing the turning point optimization of the initial planning path. According to the invention, a path planning solution with safety and economical efficiency is provided for unmanned aerial vehicle transportation in a complex low-altitude environment.

The invention relates to the technical field of centering guide boring machining, and discloses a high-precision lathe for a drilling tool, the high-precision lathe comprises a numerical control table and a workbench, the workbench is provided with an XY-axis sliding table and a clamp for fixing a centering guide pipe body, and the XY-axis sliding table is provided with a boring assembly; the workbench comprises a boring table and a separating table arranged on one side of the boring table in a spaced mode, and the separating table moves in the length direction of the boring table through a lead screw motor module. The device has the following advantages and effects that scrap removal impact airflow is generated through displacement of the film disc in the air pipe, scraps generated on the inner wall of the pipe body are rapidly flushed out through the airflow, the structure is practical, the operation mode is simple, the response is sensitive, rapid blowing-off of the scraps can be met, the influence of the scraps on a turning tool is reduced, and the machining efficiency is improved. Therefore, the requirement for high precision during lathe machining is met, the arrangement cost is low, the operation cost of traditional air injection equipment is saved, meanwhile, machining potential safety hazards caused by automatic air injection equipment are reduced, and the personal safety of workers is guaranteed.

The invention discloses a conveyor control method, which comprises the following steps: determining cost indication information, the cost indication information comprising corresponding relations between operation cost unit prices of N dimensions of a conveyor and time; obtaining a first data set, wherein the first data set comprises a value corresponding relation between the operation information of the conveyor and time and / or a value corresponding relation between different operation information of the conveyor; determining M kinds of time arrangement information of the conveyor, wherein the time arrangement information is used for indicating transportation arrangement conditions of the conveyor at different times; and according to the cost indication information, the target total transportation amount of the conveyor and the first data set, determining target time arrangement information in the M kinds of time arrangement information. In this way, the operation of the conveyor is controlled according to the target time arrangement information determined in advance, and the control cost of the conveyor can be effectively reduced. And moreover, the problems of uncontrollable cost and higher cost caused by temporary regulation and control are effectively avoided, and the defect of low cost response speed of passive control is overcome.

The invention relates to the technical field of ocean engineering large LNG module construction, in particular to an LNG module general assembly closure space precision control method. The method comprises the following steps: S1, establishing a measurement control network which comprises a plane control network and an elevation control network; s2, performing three-dimensional coordinate measurement by using a total station; s3, observing the distance from the to-be-fixed point to at least two control points by using a free station setting technology; s4, carrying out space measurement on the large steel structure; and S5, according to a measurement result, carrying out dynamic adjustment and optimization on the installation of the steel structure. The folding and butt joint precision is improved from the traditional centimeter level to the millimeter level, the situation of interface dislocation is greatly reduced, and the overall structure quality is guaranteed; one-time successful closing can be achieved, the long rework period caused by insufficient precision is omitted, the construction progress is accelerated, the project can be put into use earlier, and benefits are created; manual correction, material waste and mechanical machine-team cost are reduced, and the construction cost is reduced.

The invention discloses an intelligent production management system for a dry bulk cargo wharf based on digital twinning. The system comprises ten functional modules, namely a ship management module, a business document module, a production scheduling module, a warehouse yard tallying module, a gate wagon balance module, a business charging module, a query statistics module, a system management module, an intelligent application module and a digital twinning application module. Real-time data of wharf equipment, goods, vehicles and the like are collected through the Internet of Things technology, and intelligent production plan arrangement, equipment collaborative scheduling and operation process optimization are achieved in combination with big data analysis and an artificial intelligence algorithm; a digital twin technology is introduced to construct a wharf digital mirror image, the whole process of cargo loading and unloading, storage and transfer is simulated, visual monitoring, intelligent simulation prediction and emergency dynamic response in the production process are achieved, the problems of information isolated island, low resource scheduling efficiency and high operation cost of an existing dry bulk cargo wharf are solved, and the wharf operation efficiency and the intelligent management level are remarkably improved.

The invention relates to the field of air conditioners, and provides a multi-split mute unloading control method and device.The method comprises the steps that the multi-split running state and a pressure difference parameter obtained based on the high-pressure pipeline pressure and the low-pressure pipeline pressure of the multi-split are obtained; determining whether the pressure difference parameter conforms to a first preset range or not based on the first running state of the multi-split air conditioner; wherein the first running state is used for representing the state of the multi-split air conditioner running to the moment when the compressor can be closed according to a preset control program in the shutdown residual stage; if the pressure difference parameter accords with a first preset range, the system is controlled to enter a mute unloading mode, and the mute unloading mode is based on controlling an opening adjusting valve and an exhaust temperature electromagnetic control valve of the multi-split air conditioner, so that the corresponding multi-split air conditioner operation state and the pressure difference parameter reach target conditions, and the system is controlled to enter a preset unloading mode. The problem that the production cost and the carbon emission are increased due to extra noise reduction caused by large pressure difference unloading is solved, silent unloading is achieved, and the energy consumption and the operation cost are reduced.

The invention discloses a fuel gas component correction method and system, a storage medium and electronic equipment, and relates to the technical field of gas turbine measurement and control. The method specifically comprises the steps that two fuel flows of a thermodynamic model and a physical model are calculated in parallel, and the difference value is obtained; reversely deducing fuel calorific value and component change according to the difference value signal to finish online calibration of a fuel relative component model; switching the industrial gas chromatograph to an on-demand standby mode based on the calibration result; the flow difference is converged to zero through iterative calculation, and model self-calibration is achieved; and finally, carrying out performance calculation and self-adaptive regulation and control based on a convergence result. According to the scheme, the problems of high cost and response lag caused by dependence on continuous chromatographic analysis in the prior art are solved, online real-time correction is realized, the operation cost is remarkably reduced, and the self-adaptive capacity and the operation economy of the system to fuel change are improved.

The invention belongs to the technical field of ship manufacturing, and discloses outer plate spraying equipment which comprises an equipment body, a spraying device and a protective shed, the equipment body can move on a ship hull outer plate, and the spraying device is arranged on the side, facing the ship hull outer plate, of the equipment body and can be close to or away from the ship hull outer plate so that atomized paint can be sprayed to the ship hull outer plate; the protection shed is arranged on the other side, away from the ship hull plate, of the equipment body and covers the outer sides of the equipment body and the spraying device so as to protect the spraying process and recycle redundant paint. The equipment body can move on the ship hull plate, the spraying device can spray the ship hull plate, the spraying efficiency can be effectively improved, harm to personnel is reduced, protection can be conducted in the spraying process through the protection shed, paint is prevented from polluting the surrounding environment, redundant paint can be recycled through the protection shed, and the paint spraying efficiency is improved. Waste is avoided, and operation cost is reduced.

The utility model discloses an auxiliary maintenance platform for a flow velocity measuring vehicle, which relates to the technical field of hydraulic engineering and comprises a first upright post and a second upright post, support tables are fixed on the outer sides of the first upright post and the second upright post, and a protection component for protection during maintenance is arranged at the top of each support table. A first supporting rod is fixed to the outer side of the first stand column, and a ball machine probe is installed at the bottom of the first supporting rod. The beneficial effects of the utility model are that the protective rack and the protective frame effectively prevent maintenance personnel from being injured due to accidental falling or impact of external objects in the operation process, and the ball machine probe can monitor the maintenance area in all directions, so that the maintenance progress, the equipment state and the surrounding environment can be observed in real time; the safety and efficiency of maintenance work are improved, the solar panel can supply power to equipment on the platform, dependence on traditional energy is reduced, and the operation cost is reduced.

The invention relates to an energy-saving guide wheel design method, which comprises the following steps of: screening out an energy-saving guide wheel according with the use of a real ship through CFD (Computational Fluid Dynamics) analysis, determining the size and the mounting position of the energy-saving guide wheel according to a method that the energy-saving effect is equal to (a PDbelt energy-saving guide wheel / a PDbare ship)-1) * 100% and the maximum value of the energy-saving effect is selected as the optimal value, selecting a scheme with a good energy-saving effect, and performing test determination to improve the propulsive efficiency. The wake flow rotation energy loss of the propeller is reduced, and the efficiency is improved by about 3-8%; the energy-saving guide wheel with the matched structure can further reduce the fuel consumption, the comprehensive fuel-saving effect exceeds 2-5%, and the annual operation cost is reduced; cavitation bubbles and vibration are reduced, the water flow uniformity is optimized, propeller cavitation bubble corrosion and hull vibration are reduced, and the service life of equipment is prolonged; the angles of part of the self-adaptive guide wheels can be adjusted, so that the self-adaptive guide wheels are suitable for different drafts or navigational speeds.

The embodiment of the application discloses a kind of multi-subsystem comprehensive system architecture design optimization method and the comprehensive system of multi-subsystem, and multi-subsystem includes the flight control subsystem of aircraft, hydraulic subsystem and power subsystem, design method includes: determining the multiple selection of actuator execution mechanism used by flight control subsystem, determine multiple types of form selected by hydraulic subsystem, determine multiple power supply forms of power subsystem;Based on the requirement of operating cost and maintenance cost in series aircraft design, the optimization target that makes operating cost and maintenance cost meet the income demand is determined;For each optimization target determined, its objective function is constructed, and each objective function is solved using multiple sets of design variables to obtain the corresponding solution of each objective function under multiple sets of design variables;The corresponding solution obtained by multiple optimization targets under multiple sets of design variables is comprehensively processed to obtain the feasible solution of the system architecture selection of multi-subsystem, and the final selected system architecture is determined.

The utility model relates to the technical field of logistics automation, and discloses a logistics delivery shelf for an unmanned aerial vehicle, which comprises a main body assembly and a delivery shelf body, a placing plate is arranged on one side of the delivery shelf body, goods are arranged at the top of the placing plate, a shielding assembly is arranged on the placing plate and comprises a shielding piece, and the shielding piece comprises a shielding plate. The shielding plate is located on one side of the containing plate, a movable block is fixed to one side of the shielding plate, a positioning rod is hinged to one side of the movable block, and a bottom plate is fixed to the bottom of the positioning rod and fixed to one side of the containing plate. The goods shelf has the advantages that after goods are placed on the placing plate, the protective plate on one side can be lifted to shield the goods, the goods are prevented from falling off from the placing plate, and therefore the goods quality can be guaranteed, the logistics efficiency can be improved, the operation cost can be reduced, and the operation safety can be guaranteed.

The invention discloses a power grid project operation and maintenance system and an asset evaluation method, and relates to the technical field of power asset evaluation. According to the asset evaluation method for the power grid project operation and maintenance system, multi-factor consideration is adopted, including operation cost, maintenance cost, free cash flow, asset residual value and the like, and through financial tools such as discount and growth rate, the asset value of equipment can be estimated more accurately, making of a judicious asset management strategy and investment decision is facilitated, and the asset evaluation efficiency is improved. The introduction of the discount rate and the discount of the future cash flow enable the asset estimation to be more considered in time value, ensure the accuracy of the estimation, improve the operation efficiency, reliability and economy of the power grid, improve the operation efficiency and reliability of the power grid, reduce the cost, reduce the equipment failure and downtime, and improve the efficiency and reliability of the power grid. Therefore, the stability and sustainability of power supply are ensured, information such as operation cost, maintenance cost and equipment state is comprehensively considered, and the asset value of the equipment can be evaluated more accurately.

The present disclosure relates to the technical field of multi-energy coordinated scheduling of microgrids, and discloses a method and system for enhancing the coordination between a port microgrid and a ship energy system. The specific implementation scheme is as follows: based on the ship automatic identification system data, the measured extreme weather data and the port power system status, the real-time requested power supply of the port under extreme weather conditions and the actual power supply of the ship's reverse power supply are predicted; based on the real-time requested power supply and the actual power supply, the minimum operating cost and resilience coordination index of the port are calculated to determine the power purchase price; based on the power purchase price and the ship's maximum profit objective function, the agreed power supply of the ship's reverse power supply is determined; based on the real-time requested power supply and the agreed power supply, the real-time power supply of the port's power generation equipment is determined. The present disclosure can improve the robustness of the coordination strategy.

This invention discloses a processing device for a spark chamber self-preheating device, comprising a base, a work plate fixedly connected to the top of the base, a connector fixedly connected to the top of the work plate near its edge, a milling cutter assembly rotatably connected to the side of the connector, a working surface formed at the top of the work plate, a preheating component formed at the top of the working surface, and a separation device formed at the bottom of the preheating component. The work plate and the working surface are connected by an offset device. The separation device structure of this invention can collide the sucked fuel with the sucked air to form an oil mist structure, thereby increasing the efficiency of fuel use and accelerating the preheating time of the engine, improving the efficiency of equipment use, and reducing operating costs. At the same time, the offset device structure can realize multi-angle rotation of the workpiece to be processed, resulting in higher precision and making the device more user-friendly.

The invention discloses a shipbuilding segmented logistics intelligent algorithm, which comprises the following steps: a, carrying out segmented path search through a path search module, and after the position of a segment in a site is determined, searching a route with least blocked segments from the position to an entrance and exit; b, carrying out segmented placement position selection through a segmented position selection module; and c, through an instruction sorting module, performing segmented sorting on instructions for executing segmented moving-in and moving-out of all sites, and combining the instructions capable of continuously working. According to the shipbuilding segmentation logistics intelligent algorithm, redundant instructions generated when the site center moves segments are reduced, unnecessary waiting and delay are avoided, and the overall shipbuilding production efficiency is improved; extra cost caused by low scheduling efficiency is reduced, and operation cost is saved; and by improving the resource utilization rate and reducing the operation cost, the shipbuilding industry can be promoted to develop in the more efficient, environment-friendly and sustainable direction.

The invention relates to the technical field of intelligent management, and provides an air source heat pump full life cycle management method and system, a medium and equipment, and the method comprises the steps: obtaining the evaporation pressure and the condensation pressure, calculating the evaporation temperature and the condensation temperature through a temperature-pressure curve, and calculating the compressor heating capacity through a heating capacity fitting formula; the heating capacity of the air source heat pump system is calculated; according to the evaporation temperature and the condensation temperature, the current of the compressor is calculated through a current fitting formula, and the average value of the current of the compressor in a period of time is solved; the evaporation temperature and the condensation temperature are compared with a safe operation boundary and a dynamic early warning threshold value, and fault judgment is carried out; comparing the average current with the rated value and the maximum rated current, and performing fault judgment; based on the heating capacity of the air source heat pump system, fault judgment is conducted through a flow method and an estimation method; and recording the fault occurrence frequency, and evaluating the residual value of the equipment. A user can be helped to optimize an equipment maintenance strategy, and the operation cost is reduced.

The application discloses a kind of civil aviation aviation material inventory guarantee management and control method, system and electronic equipment, it is related to aviation material inventory management field, its method includes: in future time period T, based on routine maintenance work calendar time, service time and service cycle are calculated respectively, and the demand of aviation material is calculated, and the demand quantity of aviation material i is obtained by comprehensive calculation;In time period T, aviation material corresponding to machine part is divided into MEL list and MEL list not belonging to two types and is calculated for non-routine work demand;Supplement calculation associated with the demand of aviation material, and the demand of aviation material for non-routine work is obtained by comprehensive calculation;On the basis of superimposed fleet size, the demand quantity of aviation material is calculated.The application realizes the accurate control of each type general aviation material inventory quantity, scientific configuration and dynamic adjustment, and then optimizes general aviation enterprise aviation material inventory structure and safety inventory level, improves aviation material inventory guarantee timeliness, saves operating cost.

The utility model relates to the technical field of railway transportation equipment, and discloses an empty and heavy carriage positive hook device which comprises a fixing block, a connecting shaft is arranged on the lower portion of the fixing block in a penetrating mode, a U-shaped frame is rotationally connected to the outer portion of the connecting shaft in a sleeved mode, a guide arm is welded to one end of the U-shaped frame, and a positioning plate is connected to the lower end of the U-shaped frame. A kidney-shaped hole is formed in the side, away from the U-shaped frame, of the positioning plate in a penetrating mode. Connecting blocks are symmetrically connected to one side of the upper portion of the fixing block, a lug block is rotationally connected between the two connecting blocks through a pin shaft, an upper check block is fixedly connected to the lower end of the lug block, a polish rod is fixedly connected to the lower end of the upper check block, and the lower portion of the polish rod penetrates through the kidney-shaped hole; according to the utility model, the accuracy and the efficiency of carriage connection in the operation process of the tippler are improved, the equipment damage and the potential safety hazard caused by the connection failure of the car coupler are reduced, the structure is simple, the installation and the maintenance are easy, and the operation cost is reduced.

The invention discloses an intelligent anti-blocking method and device for a drying machine, a storage medium and the drying machine, and belongs to the technical field of mechanical automation. The method comprises the steps that material type information and a material humidity value of a to-be-dried material are collected, and the initial frequency of a material stirring wheel is determined; drying machine operation parameters are obtained, wherein the drying machine operation parameters comprise the elevator current, the elevator bottom pressure, the elevator first side wall pressure and the elevator second side wall pressure; adjusting the frequency of a material stirring wheel according to the current of the elevator so as to ensure that the elevator is in a normal operation state or a low-load operation state; and the frequency of the material stirring wheel is adjusted according to the elevator bottom pressure, the elevator first side wall pressure and the elevator second side wall pressure. The frequency of the material stirring wheel is adjusted according to the current and pressure of the elevator, overload operation or blocking of the elevator is avoided, manual judgment and operation are not needed in the control process, full-automatic anti-blocking control is achieved, the intelligent level is high, the drying efficiency is effectively improved, and the equipment maintenance and operation cost is reduced.

The application discloses a kind of power supply full life cycle flat equalization capacity cost calculation method, system, equipment and medium, it is related to power system analysis and planning technical field, including obtaining the multiple cost parameters of each year of target power supply in entire life cycle, and according to the operation state data of target power supply in life cycle, calculate capacity reliability representation parameter, each year multiple cost parameters are uniformly converted to reference time point using the preset time value discount factor, and summation is carried out, obtain the present value of total cost in full life cycle, based on the present value of total cost in full life cycle and cumulative effective capacity, the amortization cost of unit effective capacity in life cycle is calculated, i.e.flat equalization capacity cost.The application is quantified to power supply full life cycle flat equalization capacity cost by combining capital recovery, dynamic environmental cost, capacity reliability reduction and comprehensive operating cost, provides fair evaluation basis for the capacity value of power supply of different technical route.

This invention discloses a microgrid collaborative optimization scheduling method and system. The method includes: establishing mathematical models of various equipment units in the microgrid, including wind power generation systems, photovoltaic power generation systems, energy storage systems, diesel generators, electric vehicle clusters, and ice storage air conditioning; constructing an optimization objective function with the goal of minimizing the total operating cost of the system; setting system constraints, including power balance constraints, equipment power constraints, energy storage constraints, electric vehicle SOC constraints, and ice storage air conditioning capacity constraints; adjusting the operating parameters of the mathematical models of each equipment unit under the premise of satisfying the system constraints, so that the optimization objective function reaches its minimum value; and optimizing the scheduling of each equipment unit based on the solved operating parameters. The advantages of this invention are: fully leveraging the collaborative scheduling potential of emerging schedulable resources such as electric vehicle clusters and ice storage air conditioning systems, and effectively addressing the uncertainties of renewable energy.

The utility model relates to the technical field of operation platforms, in particular to an assembly type operation platform for installing an elevator without a machine room. According to the technical scheme, the device comprises a plurality of I-shaped steel underframes which are linearly arranged at equal intervals, and further comprises a plurality of positioning square steels which are welded on the I-shaped steel underframes and are linearly arranged at equal intervals; the supporting stand columns are movably inserted into the tops of the positioning square steel, and the middle portions of the supporting stand columns are movably connected with fixing transverse rods. According to the assembly type operation platform, the positioning square steel, the supporting stand columns, the fixing transverse rods, the operation supporting plates, the crawling ladders and other structures are matched, so that the assembly type operation platform can be stable and reliable and can be repeatedly used, the loss part can be disassembled, maintained or replaced according to needs, the service life is prolonged, and material waste is avoided; and the operation cost is further reduced. And meanwhile, the assembly type operation platform is safe and rapid in combination process, so that the construction progress can be effectively accelerated, and the economic cost is reduced.

This utility model discloses an adjustable buffer idler for a roller conveyor, comprising: an idler body and a positioning strip disposed inside the idler body, wherein an adjusting frame is connected to the inner side of the positioning strip, and a first support frame is disposed on the left side of the adjusting frame; it also comprises: a support plate, which is installed on the outer side of the first support frame, and a first connecting block is connected to the outer side of the support plate. This adjustable buffer idler for a roller conveyor allows for easy separation of the idler and the first support frame after use, enabling operators to quickly separate and replace the buffer idler when it is damaged, avoiding impact on the efficiency of device maintenance and repair, and reducing the operating cost of the device. Simultaneously, the device incorporates an effective buffer idler adjustment structure, allowing operators to easily adjust the size of the buffer idler according to actual usage conditions, improving the versatility of the device and resulting in better performance.

This invention proposes a large-scale vertical motor thrust head and lubrication and cooling system based on phase change self-circulation, belonging to the field of vertical motor lubrication and cooling technology. It solves the problems of complex installation, high water consumption, high leakage risk, and high cost inherent in existing large-scale vertical motor thrust and guide bearing lubrication and cooling systems. The guide bearing is assembled and installed on the inner wall of the base and outer cover assembly, while the thrust bearing is assembled and installed at the bottom inside the base and outer cover assembly. The lower end face of the thrust head fits into the thrust bearing assembly to form a thrust sliding pair, and its lateral outer circular surface contacts the guide bearing assembly to form a guide sliding pair. The inner hole of the thrust head is connected to the main shaft and rotates synchronously with the main shaft. Phase change material fills the internal cavity of the thrust head, and a spiral finned cooler communicates with the internal cavity of the thrust head. This invention combines the phase change heat transfer characteristics of the phase change material to achieve a self-cooling cycle without external cooling water and power, simplifying the equipment structure, reducing operating costs, and improving system stability and service life.

The invention provides a multi-target collaborative logistics scheduling method, device and equipment and a storage medium, and the method comprises the steps: obtaining the elevation data and traffic flow data of each candidate path through the comprehensive analysis of a plurality of candidate paths between a transportation starting point and a transportation terminal point, and obtaining the data of the elevation data and traffic flow of each candidate path based on the cargo tonnage, the elevation data of each candidate path, and the traffic flow data of each candidate path; and constructing an objective function corresponding to each candidate path, wherein the transport time efficiency, the energy consumption and the operation cost are fused in the objective function. And finally, determining a comprehensive optimal transportation path in the aspects of transportation time efficiency, energy consumption and operation cost by solving a target function, and realizing balance optimization of multi-dimensional benefits. The technical problem that timeliness, energy consumption and cost cannot be balanced by a logistics scheduling algorithm in the prior art is solved.