99results about How to "Improve operating economics" patented technology

The invention relates to a regional power grid economic operation and energy saving total management system which comprises three layers of structures. The bottom layer is an interface module, the middle layer is a foundation platform module, and a high-level layer is a function application layer. The interface module achieves image equipment and topological data reading to the system and a database timed task function. The middle layer supports power grid visualization graphic modeling and universal tool service functions. The high-level layer achieves a complete set of regional power grid economic operation analysis and energy saving total management functions and an auxiliary-implemented working process. The system mainly has five application functions, namely long-term load prediction, transformer economic operation, power quality analyzing, transmission loss managing and reactive voltage optimal controlling.

The invention provides a renewable energy coupled energy storage and temperature regulation wall body system and a using method thereof. The renewable energy coupled energy storage and temperature regulation wall body system is characterized by comprising a temperature regulation wall body, a solar energy device and a shallow soil heat exchange tube; the solar energy device is arranged on a roof of a room; the shallow soil heat exchange tube is buried in the ground; the temperature regulation wall body is connected with the solar energy device and the shallow soil heat exchange tube; one end of the shallow soil heat exchange tube is connected with a water supply pipeline three-way reversing valve, a heat exchange tube water pump and a heat exchange tube flow meter; the other end of the shallow soil heat exchange tube is connected with a water return pipeline three-way reversing valve through a pipeline; the temperature regulation wall body comprises an inner wall plastering layer, a phase change energy storage plate, binding mortar, an inner wall body and an outer wall plastering layer in turn along the direction from interior to exterior; small pipe diameter of coiled pipes are uniformly embedded in the phase change energy storage plate along the direction of the height of the wall body; a water inlet end and a water outlet end of the small pipe diameter of coiled pipes re located at the bottom of the temperature regulation wall body. The using method is divided into three working condition modes of the winter working condition mode, the summer working condition mode and the transition season working condition mode.

The invention discloses a multi-region electricity-gas coupling comprehensive energy system optimal scheduling method considering tiered gas prices. The method comprises the following steps: S1, a typical combined cooling heating and power supply system are adopted in an energy supply mode of a comprehensive energy system in a region, power-to-gas equipment and gas storage equipment are arranged to consume new energy to achieve energy standby application, and a gas bus is added for constraint modeling; S2, energy connection is achieved through coupling interconnection of electric energy and natural gas between regions, the natural gas serves as main complementary energy, and an electricity-gas steady-state coupling linear power flow algorithm is completed in combination with a second-ordercone relaxation and incremental linearization method; S3, based on the electricity-gas steady-state coupling linear power flow, a double-layer linearization algorithm is adopted to solve the nonlinear problem of a compressor gas consumption model; and S4, a traditional day-ahead economic dispatching target function is optimized and perfected, the tiered gas price is considered to achieve optimaldispatching by taking the minimum total operation cost of all parks as a target through energy interconnection distribution among different functional areas, namely a residential area, a commercial area, an office area, an industrial area and the like.

The invention provides a locomotive vehicle running gear bearing holder fault pre-alarm method.According to the method, a composite sensor and a detection instrument are installed on a locomotive vehicle running gear bearing seat for online data acquisition and preprocessing, time domain impact SVi data, time domain vibration Vi data and temperature data Ti are generated, the time domain impact characteristic value SVmax and the time domain vibration characteristic value VRMS are calculated, fast Fourier transform is conducted, a corresponding shock frequency spectrum and a vibration frequency spectrum are obtained, an impact fault characteristic mark Ib and a vibration fault characteristic mark Vb are obtained through processing, a temperature pre-alarm mark Tb is obtained through calculation with temperature data, trend analysis is conducted on the Ib, the Vb and the Tb sequence data, and an alarm or pre-alarm is given according to the trend analysis result.The locomotive vehicle running gear bearing holder fault pre-alarm method is high in diagnosis accuracy, easy to master, high in operability and wide in application range; scientific operation or maintenance guidance opinion is provided, planned maintenance is converted to state maintenance, safety of the locomotive vehicle is greatly improved, maintenance cost is saved, and operation economic benefits are raised.

The invention provides a lateral error translation modification method of a wind electricity power forecast system. The method includes the steps that wind electricity power historical forecast and actual measurement data sequences are collected and are classified according to four seasons, and data of each season every year are divided into three kinds of power trend sections, that is a continuous power increasing section, a continuous power lowering section and an unchanged power section; duration time sequences of each power trend section are obtained according to power trend duration models, probability statistic analysis is carried out to obtain a macroscopic centralized distribution value, a wind electricity power forecast lateral error model is input to obtain a lateral error of each season every year, and a weighted average value of the lateral errors of each identical season of N years serves as a lateral error modification value of each season; translation modification is carried out on forecast power sequences supplied to power grid dispatching by the wind electricity power forecast system by means of the weighed average value, and the translation modification effect is evaluated on the whole. The method has common adaptability for power short-term or exceedingly-short-term forecast systems of wind electricity, photoelectricity and the like and can further improve precision of various power forecast systems.

The micro oil plasma complex ignition and stable burning method ignites the coal powder by assisting the plasma igniter with micro oil ignition. It can use micro oil ignition to light the coal powder air stream reliably when the plasma igniter is not available. When the power is not sufficient, the assistant oil gun mist spray will complement the ignition energy, achieving the goal of replacing oil and saving fuels.

The invention discloses a method for calculating direct current access capability of a receiving end power grid with consideration of multiple constraints, belonging to the technical field of electric power system and automation thereof. The method for calculating direct current access capability of a receiving end power grid with consideration of multiple constraints comprises: determining an alternative direct current drop point set according to the station address condition of a transformer station, electric power balance and the like; determining newly increased direct current access drop points according to the short circuit capacity of each alternative direct current drop point in the typical mode and the interaction degree between each direct current in the typical mode; and giving the direct current access capability of a receiving end power grid through iteration after integrated consideration of multiple constraints comprising the direct current multi-infeed short circuit ratio, the power grid low ebb peak load regulation capacity, the relative moment of inertia index, the N-1 transient stability and the like. The method for calculating direct current access capability of a receiving end power grid with consideration of multiple constraints is beneficial to guidance of a power grid planning department about reasonable planning of the direct current drop points of the receiving end power grid, and can give the reasonable level for the direct current access capability of the receiving end power grid and reduce the blindness for direct current construction, and can improve the power grid operation control level.

The invention discloses a single-pilot driving system and a control method. The system comprises an onboard pilot system, a cockpit automation system and a ground operator system, wherein a single pilot on an airplane drives the airplane according to a flight plan and monitors a flight path and a deviation condition in real time; the cockpit automation system is responsible for flight informationmonitoring and flight system management; meanwhile, the real-time perception and task allocation of the captain capability state are completed through a cognitive man-machine interface and a functionallocation intelligent subsystem, a ground operator system is in real-time communication with the aircraft through a data link, and an operator can complete monitoring alarm or remote control assistance work according to different driving modes. Meanwhile, a single-pilot driving mode organization operation mode is provided for four different scenes. According to the invention, the number of pilotsis reduced and the operation economy is improved under the condition of meeting the current double-passenger driving mode function and safety condition, and the operation economical performance is improved; the cockpit resource allocation requirement is reduced, the cockpit space is reduced, and the airplane weight is reduced; the decision conflicts of multi-passenger driving of a commercial aircraft are eliminated, decision efficiency is improved, and response time is shortened.

The invention discloses a variable geometry outlet guide vane, the outlet guide vane includes an inlet adjustable section, an outlet fixed section, and there is a gap between the trailing edge of the inlet adjustable section and the front edge of the outlet fixed section; the gap is formed by Composed of two smooth curves, the pressure surface and the suction surface are connected through the gap. Using the pressure difference between the pressure surface and the suction surface, a small part of the air flows through the gap from the concave surface to the convex surface, so as to blow the boundary layer and reduce the loss. Increase the airflow turning angle. The variable geometry outlet guide vane of the compressor proposed by the present invention, by adjusting the position of the front part of the outlet guide vane, avoids flow separation or blockage due to the excessive The rear part of the guide vane remains stationary, and the rotation of the guide vane has little effect on the flow of the exhaust diffuser and the combustion chamber.

The invention discloses a vane regulation control device. The vane regulation control device comprises a variable geometric outlet vane and a corresponding data acquisition and processing system, wherein the outlet vane comprises an inlet adjustable section and an outlet fixed section, and a clearance is arranged between the tail edge of the inlet adjustable section and the front edge of the outlet fixed section; and the clearance consists of two sections of smooth curved lines, and a pressure surface communicates with a force absorption surface through the clearance. By utilizing pressure difference between the pressure surface and the force absorption surface, a small part of air is led into a convex surface from a concave surface through a seam so as to blow a boundary layer thin. Losses are reduced, and airflow turning angle is increased. According to the vane regulation control device provided by the invention, a regulation command is sent out by the data acquisition and processing system, the mounting angle of the front part of the outlet vane is adjusted in a stepping manner, and flow separation or blockage caused by too-large attach angle of a vane inlet when the vane runs under variable work conditions is avoided; and at the same time, as the rear of the vane is kept still, the rotating of the vane produces little influence on the flow of an exhaust diffusion section and a combustion chamber.

The invention discloses an interaction voice response system and a realization method thereof, and relates to telecommunication communication field. The method includes that after receiving call request, the IVR system queries user information in an on-line charging system (OCS) according to user identification in the call request, obtains an IVR function menu customized for the user according to the user information, and provides various function services in the IVR function menu for the user. The invention greatly reduces investment cost of service provider, and establishes foundation for service provider to fast provide business and improve operation economical benefit.

The invention discloses a bolt assembly of a shape memory alloy cable clamp. The bolt assembly comprises bolts connecting flow guiding parts of a plurality of cable clamps, nuts in threaded match with the bolts and disc washers arranged between the nuts and one of the flow guiding pieces. The mounted washers are in a pressed state. The bolt assembly is characterized in that the washers are made from a shape memory alloy material. When the heating temperature of the cable clamp is equal to or greater than austenite initial phase change temperature of the shape memory alloy material, the washers start to restore and compress drainage plates of the two cable clamps. The bolt assembly of the shape memory alloy cable clamp has the advantages of being capable of spontaneously inhibiting heating effect, improving the economic benefit and safety of operation of a power grid and the like.

The invention provides a process for preparing calcium magnesium ammonium phosphate from desulfurization wastewater, landfill leachate and phosphorus-containing wastewater, and belongs to the technical field of sewage treatment. The process involves a desulfurization wastewater treatment unit, a landfill leachate treatment unit, a phosphorus-containing wastewater treatment unit and a calcium magnesium ammonium phosphate generation unit; the desulfurization wastewater treatment unit is used for treating desulfurization wastewater of a coal-fired power plant to obtain a calcium-containing solution; the landfill leachate treatment unit takes ammonia nitrogen escaped from landfill leachate in a steam stripping deamination process as an ammonia nitrogen source; the phosphorus-containing wastewater treatment unit is used for treating phosphating wastewater or phosphogypsum slag field leakage liquid to obtain a phosphorus-containing solution; the calcium magnesium ammonium phosphate generation unit is used for mixing a calcium/magnesium solution, the ammonia nitrogen and the phosphorus-containing solution, adjusting the pH value and then performing a reaction to obtain calcium phosphate,calcium fluoride, calcium hydrophosphate and magnesium ammonium phosphate precipitate. Industrial wastewater is comprehensively treated, and calcium and magnesium ions in desulfurization wastewater, nitrogen and ammonia in the landfill leachate and phosphorus in the phosphorus-containing wastewater are used for preparing a compound fertilizer raw material calcium magnesium ammonium phosphate.

The invention discloses a wind, solar and pumped storage combined system optimization scheduling method based on a non-cooperative game, belongs to the technical field of power transmission, and aimsto solve the problem of huge challenge of large-scale wind and solar grid connection on the stable operation of a regional power grid. The method comprises the steps that a non-cooperative game modelis established, wherein the model is composed of four elements including game participants, a participant strategy set, participant earnings and a game balance strategy; and the model is solved, wherein a Nash equilibrium solution is solved by adopting an iterative search method. According to the method, the output characteristics of various power plants are comprehensively considered, the benefitmaximization of three participants is taken as an optimization target, a unit output strategy is taken as a decision space, and a Nash equilibrium solving algorithm corresponding to the model is provided; the method is more suitable for the current situation that the opening degree of the power market is sharply increased, facilitates the comprehensive dispatching of wind, solar and pumped storage power stations of power plants participating in dispatching, reduces the wind and light abandoning amount, and guarantees that the output fluctuation of the combined system is minimum and the operation economic benefits are maximum.

A distributed type power generation and hydrogen generation system based on a sewage treatment plant comprises a regenerated water storage device which is connected with a regenerated water output pipeline of a sewage treatment plant, a pure water preparing device which is connected with the regenerated water storage device, a wind power generation device, a solar power generation device, a wind-solar complementary control device which is connected with the wind power generation device and the solar power generation device, a DC-DC converting device which is connected with the wind-solar complementary control device, an electrolysis water hydrogen production device which is connected with the DC-DC converting device to conduct the electrolysis water hydrogen production reaction to form nitrogen and oxygen, a pure water preparing device which is connected with the electrolysis water hydrogen production device, a hydrogen purification device which is connected with the electrolysis waterhydrogen production device, a hydrogen storage device which is connected with the hydrogen purification device and used for storing purified hydrogen, and an oxygen storage device which is connectedwith the electrolysis water hydrogen production device and used for storing oxygen. Hydrogen is generated through reclaimed water in the sewage treatment plant, the reclaimed water in the sewage treatment plant is sufficiently utilized, the sewage treatment plant becomes a hydrogen generation station and an oxygen generation station, and the high price of the hydrogen is lowered.

An air compensation device of an internal combustion engine comprises an engine air inlet header pipe (14), a body (1), an air connector (2) and a solenoid valve (3). The body (1) is internally provided with a first air compensation channel (7) and a second air compensation channel (8). The engine air inlet header pipe (14) is provided with an air inlet hole communicated with the first air compensation channel (7). The solenoid valve (3) is a membrane-type solenoid valve, and installed in a solenoid valve installation hole (16) in the body (1). The first air compensation channel (7) is connected with the second air compensation channel (8) through a membrane (10) inside the solenoid valve (3), one end of the air connector (2) is communicated with the second air compensation channel (8), the other end of the air connector (2) is communicated with an air inlet pipe before a throttling valve body (15) through a pipeline, and the solenoid valve (3) is electrically connected with a vehicle electronic control module. The demand for air during braking of an engine is met.

The invention relates to a magnesia-method desulfurization and drying all-in-one machine. The magnesia-method desulfurization and drying all-in-one machine comprises a flue gas dry-method dust remover, a spray drying tower, a cyclone dust collector, a sulfuric acid removing tower, a magnesia pulping tank, a high-pressure spray pump, a magnesia material slurry pump, a circulating conveying pump, aplate-and-frame filter, a high-pressure induced draft fan, a magnesium sulfate storage tank, an aeration draught fan and a control system, wherein the flue gas dry-method dust remover is mutually communicated with an external air source and the spray drying tower; the spray drying tower is mutually communicated with the magnesium sulfate storage tank through the high-pressure spray pump and is mutually communicated with the cyclone dust collector; the cyclone dust collector is mutually communicated with the sulfuric acid removing tower; the sulfuric acid removing tower is mutually communicatedwith the high-pressure induced draft fan, the circulating conveying pump, the aeration draught fan and the magnesia material slurry pump respectively. By adopting the magnesia-method desulfurizationand drying all-in-one machine, on one hand, the flexibility and convenience of equipment utilization can be effectively improved, and installation, construction and operation and maintenance cost of equipment are reduced; on the other hand, the requirements of purifying the tail gas, pre-heating and recycling and preparing a high-purity magnesium sulfate monohydrate product are effectively met atthe same time.

The invention discloses a coordinated optimization method for the internal electricity price of a micro grid group with high-permeability distributed power supplies, which relates to the technical field of optimal dispatching of distribution networks. The coordinated optimization method includes the following steps: updating internal electricity price information multiple times; obtaining the netload of each micro grid maximizing the economic benefit of the micro grid multiple times according to the grid electricity price information, the internal electricity price information and the economic benefit model of the micro grid; and obtaining the economic benefit of a micro grid operator multiple times according to the grid electricity price information, the internal electricity price information, the net load information and the economic benefit model of the micro grid operator until the optimal economic benefit of the micro grid operator is achieved. The coordinated optimization methodrealizes the coordination among the source/storage/load of the distribution network by taking the internal electricity price as a means of adjustment, so as to maximize the revenue of the micro gridoperator and optimize the revenue of each micro grid.

The invention relates to a system and a method for the hot-dip galvanization of motor-vehicle components, preferably for mass-production hot-dip galvanization of a plurality of identical or similar motor-vehicle components, in particular in batches, preferably for batch galvanization, especially preferably for high-precision hot-dip galvanization.

The invention discloses a bullet train operation depot. The bullet train operation depot comprises a storage park, a wheel tread diagnostic device and an examination library. The bullet train operation depot is characterized in that one end of the storage park is provided with an entrance and exit port of the bullet train operation depot, the entrance and exit port of the bullet train operation depot is connected with a passenger station through a rail, and the other end of the storage park is connected to the examination library through the rail, and the rail between the storage park and theexamination library is provided with the wheel tread diagnostic device and a housing cleaning machine. The bullet train operation depot is capable of effectively improving the pickup speed, wherein amotor train unit can directly enter the storage park in 40 km/n of the speed, and the pickup time is shortened by 75%, effectively improving the pickup density, improving the efficiency of the maintaining operation, and improving the operation economic benefit of the bullet train.

The invention provides an intelligent switch control method suitable for a family micro-grid. The intelligent switch control method comprises the steps as follows: a main outgoing line switch detects voltage and current of electric supply in real time; a branch switch detects the voltage of various branches and the current of the branches in real time and transmits the voltage and the current to an operation module; voltage and current data are transmitted to the operation module; the operation module calculates active power and reactive power of a main outgoing line and the active power and the reactive power of the branches and analyzes the current power grid state; the operation module judges whether the power grid state is normal or not by detecting the voltage of the electric supply to control on/off of the main outgoing line switch; the main outgoing line switch is in a grid-connected mode when switched on and the main outgoing line switch is in an off-grid mode when switched off; and on/off modes of the branch switches in the grid-connected mode or the on/off modes of the branch switches in the off-grid mode are formed through analysis of the active power of the branches. By the intelligent switch control method suitable for the family micro-grid, effective isolation of the family micro-grid in normal power supply and an unscheduled power failure of the electric supply can be ensured; the energy efficiency level is improved; and meanwhile, the economic benefits of system operation are also improved.

The invention relates to a dual-fuel bulk cargo ship, and belongs to the technical field of ship design. The ship comprises a superstructure, an upper deck, a gas fuel cabin, a fuel storage cabin, a cargo cabin and a cabin, wherein a superstructure is arranged on an upper deck, close to a stern, of the dual-fuel bulk cargo ship, a cabin is arranged in the ship body below the superstructure, a cargo hold is arranged in the ship body between the cabin and the bow of the dual-fuel bulk cargo ship, a gas fuel cabin is arranged on the upper deck, close to one side of the bow, of the superstructure,and a fuel storage cabin is arranged in the hull below the gas fuel cabin. The ship is advantaged in that a problem that a gas fuel cabin of a dual-fuel bulk cargo ship occupies a large space of a cargo hold and a cabin is solved, and reasonable arrangement of LNG tanks on the ship is achieved under the condition that the capacity of the cargo hold and the arrangement of the cabin are not affected. Operation economy of the ship is improved, greenhouse gas emission is reduced, and purposes of energy conservation and emission reduction of the ship are achieved.

The invention discloses an integrated energy system model construction method considering a carbon transaction mechanism and demand response, and the method comprises the steps: obtaining basic parameters which comprise a stepped carbon transaction price and a demand response parameter; establishing a first model and a second model of integrated energy system scheduling by using an information gap decision theory; substituting the basic parameters into the first model, solving the first model by taking the highest daily operation profit of an operator as a target, and outputting the output scheme of each unit in the integrated energy system; and substituting the basic parameters into the second model, solving the second model by taking the minimum daily energy consumption cost of the user as a target, and outputting demand response parameters. It can be seen that on the energy supply side, the stepped carbon transaction mechanism and the demand response are introduced into the comprehensive energy system, low-carbon environment-friendly operation of the comprehensive energy system is achieved, energy supply is guaranteed, a user on the energy demand side adjusts the energy consumption demand of the user according to the demand response compensation price and the cold, heat and electricity prices, and the energy consumption cost of the user is reduced.

The invention discloses an internal combustion locomotive double-heading traction drive device which comprises two locomotive main drive systems. In each locomotive main drive system, a generator, a traction generator, a rectifying device and a first direct current contactor are connected in sequence, a locomotive double-heading direct current bus and a locomotive direct current bus are divided behind the first direct current contactor, the locomotive direct current bus has three branch circuits, one is connected with a traction motor through a traction converter, one is connected with auxiliary electricity utilization equipment through an auxiliary converter, an isolation transformer and a filtering device in sequence, and another one is connected with a resistance braking device through a resistance braking converter. The locomotive double-heading direct current buses and the locomotive direct current buses of the two locomotive main drive systems are in cross connection. The internal combustion locomotive double-heading traction drive device has the advantages that heavy haul traction can be achieved by slightly remolding existing components; working conditions of double-heading locomotives can be selected at will according to practical traction needs, and economical efficiency is good.