38results about How to "Conducive to cascading utilization" patented technology

The invention provides a distributed solar energy cascade utilization system and belongs to the field of solar energy utilization. The system mainly comprises a main solar energy generating system and a residual heat utilization system. In the main solar energy generating system, a high-temperature heat collector, a steam turbine, a first heat exchanger and a circulating pump are connected in turn to form a water circulating passage; an electric generator is connected with the steam turbine; and an electrical storage device is connected with the electric generator. In the residual heat utilization system, a first heat exchanger, a hot water system, a refrigerating system or a heating system and a circulating pump are connected in turn to form a water circulating passage, wherein the main generating system is connected with the residual heat utilization system through the first heat exchanger. The system aims to realize synchronous supply of cold, heat and electricity by using solar energy so as to meet the requirements of residents on basic energy sources in daily life.

The invention provides a multistage heat accumulating type solar heat-power cogeneration system which comprises a tower type heat absorption-accumulation-transfer subsystem, a tank type heat absorption-accumulation-transfer subsystem, a flat plate type heat absorption-accumulation-transfer subsystem and a heat-power cogeneration subsystem, wherein the tower type heat absorption-accumulation-transfer subsystem, the tank type heat absorption-accumulation-transfer subsystem and the flat plate type heat absorption-accumulation-transfer subsystem are coupled through a moderate temperature coupling heat accumulator and a low temperature coupling heat accumulator; and the heat-power cogeneration system comprises a power supply mode, a heat supply mode and a heat-power cogeneration mode, and operates together with the three heat absorption-accumulation-transfer subsystems. The invention organically combines the solar tower type, tank type and flat plate type heat collecting systems to form high temperature, moderate temperature and low temperature three-stage heat accumulators; and thus, the invention can meet the requirements for industrial large-scale solar moderate temperature and high temperature heat utilization, and is beneficial to the comprehensive cascading utilization of energies.

The invention relates to a comprehensive energy system energy use flexibility evaluation method and system. The method comprises the following steps: S1, establishing a comprehensive energy system mapping model based on physical characteristics of energy equipment and an energy network topology structure; s2, according to the historical operation data of the comprehensive energy system and the historical load data in the supply area, establishing an uncertainty test set of the supply end and the demand end, and generating energy demand and energy supply pairs of the demand end under all the test sets; s3, calculating the flexibility of different energy flows according to the generated energy demand and energy supply pair; and S4, determining the overall energy use flexibility of the comprehensive energy system based on a fuzzy analytic hierarchy process. According to the method, guidance can be provided for energy gradient utilization and operation scheduling optimization of the comprehensive energy system, interaction between the supply end and the demand end is enhanced, and adverse effects caused by system uncertainty are reduced.

The invention discloses a comprehensive utilization method of copper smelting tailings. The method comprises the following steps that (1) after the copper smelting tailings are sieved and classified as raw materials, pulverized materials of the copper smelting tailings are obtained, and then the pulverizing materials are subjected to flotation to obtain copper concentrate; (2) copper smelting tailing recleaning gangue obtained after the copper concentrate is obtained through flotation in the step (1) is used as a raw material, magnetic plants with different magnetic field strengths are used for magnetic separation, iron-bearing copper smelting tailing recleaning gangue in different steps is obtained, and the iron-bearing copper smelting tailing recleaning gangue with different iron-bearinggrades is concentrated and filtered or dried and dehydrated to obtain iron-bearing copper smelting tailing recleaning gangue powder with different iron-bearing grades; and (3) the iron-bearing coppersmelting tailing recleaning gangue powder obtained in the step (2) is mixed with an annexing agent to be subjected to ball grinding mechanochemistry activation, and solid activated copper smelting tailing fine powder is obtained to serve as a blend of cement. The comprehensive utilization method realizes efficient utilization of the copper smelting tailings, is strong in applicability, is green and environment-friendly, and is reliable in operation.

The invention relates to a combined cooling, heating and power device of a distributed type industrial boiler. A steam Rankine cycle system positive pressure and closed type method is adopted, a condenser of an outlet steam exhaust of a steam turbine serves as heat sources for a heating plant and an absorption refrigeration device, and therefore gradient utilization of energy sources is achieved. High quality energy of fuel is recovered for generating electricity, more than 260 KWh electric quantity can be recovered from per ton evaporation capacity (or 0.7MW heating load), at the same time, cooling and heating combination is achieved, and exhaust gas waste heat can be effectively recovered. According to a steam Rankine cycle system, waste acid and waste alkali are not produced, and the problems of oxygen corrosion and scale formation of the boiler are effectively avoided. Therefore the distributed type industrial boiler is energy-saving, environment-friendly and very remarkable in social benefits.

The invention relates to a distributed pneumatic-Rankine combined cycle combined cooling heating and power device. The distributed pneumatic-Rankine combined cycle combined cooling heating and power device is characterized in that the exhaust of a pneumatic machine is adopted as a heat source of a Rankine cycle waste heat boiler, a steam Rankine cycle system adopts a positive pressure and close type operating mode, a condenser of outlet dead steam of a steam turbine is utilized as a heat source of a heating system and an absorption refrigeration machine, and the cascading use of an energy source is realized; and high grade energy of a recycled fuel is used for generating electricity, evaporative capacity (or the heating load of 0.7 MW) of per ton can recover electric quantity which is more than 340 degrees, meanwhile, the cooling heating combination is realized, and the waste heat of fume is recovered in a high efficiency manner. A water treatment system of the steam Rankine cycle system causes no or only a little of waste acid and waste caustic to generate, and an oxygen corrosion and scaling problem of the boiler is effectively avoided. Therefore, energy conservation, environmental friendliness and social benefits are very notable.

The invention discloses a separation method of ethylene cracking gas through full temperature range-pressure swing adsorption and relates to the technical field of preparation of ethylene, propylene, hydrogen and the like and gas separation through pressure-swing adsorption. The separation method disclosed by the invention solves the problems existing in a sequential ethylene cracking gas separation (cryogenic distillation) method that the self energy of raw material gas cannot be fully utilized, the energy consumption in the separation process is higher, the product and recovery component purity or the yield are lower, and the like, and changes that a traditional pressure-swing adsorption method is only limited to the auxiliary effect of refined purification of ethylene tail gas and becomes basic separation unit operation as equally important as cryogenic distillation separation.

The invention discloses a dual ejector refrigeration cycle system with an inter heat exchanger and a method of the refrigeration cycle system. According to the refrigeration cycle system, CO2 is usedas a refrigerant, the ice making amount is large, and the heat of a gas cooler can be well utilized in a gradient manner; double compressors and the double ejectors are adopted, so that the circulation efficiency is improved, and the energy consumption is reduced; compared with a conventional carbon dioxide refrigeration cycle, the refrigeration cycle system has the advantages that the efficiencyis improved by 18-25%, and the loss can be reduced by about 35-45%; and compared with a novel ejector carbon dioxide refrigeration cycle, the efficiency is improved by 6-12%, when the pressure of thegas cooler is low, the loss is reduced by about 10%, and the loss difference between the gas cooler and the ejector is very small along with increase of the pressure. According to the refrigeration cycle system, the heating performance coefficient is slightly increased, and the refrigerating performance coefficient is increased by 10-25%, so that heat regeneration is increased under the low-evaporation-temperature working condition of a skating rink, cold energy is effectively utilized, and the operation cost is reduced.

A cryogenic liquid gasification cold energy recycling device comprises a cryogenic liquid storage tank (1), a nitrogen generator or a nitrogen storage container (11) and a closed nitrogen refrigerantgasifier; the closed nitrogen refrigerant gasifier comprises an insulation shell (2) and a heat exchanger (3) arranged in the insulation shell (2), and cryogenic liquid is conveyed to a downstream secondary gasification system or directly conveyed to gas users through the heat exchanger (3) after being gasified; in this process, the heat exchanger (3) releases cold energy to nitrogen in the insulation shell (2) through heat exchange with the cryogenic liquid, and the closed nitrogen refrigerant gasifier is an assembly composed of one or more sets; the insulation shell (2) can be provided witha safety release valve (4) and a blow-down valve (5), and the output end of the insulation shell (2) is connected to a cascade cold energy user (6) and/or a liquid refrigerant system; and a nitrogen loop is used for providing circulating pressure under the control of a control system through a circulating pump (10) automatically.

The invention discloses a method for screening out retired batteries of an electric vehicle through AI detection. The method comprises the following steps of firstly, carrying out preliminary evaluation on the retired batteries, screening out the retired batteries capable of being used in an echelon mode, then disassembling the retired batteries capable of being used in the echelon mode into corresponding battery cells, carrying out capacity grading on the battery cells, and carrying out reference performance test on the battery cells subjected to capacity grading; obtaining performance parameters of the battery cells, carrying out pulse current test on the battery cells to obtain pulse voltage characteristics of the battery cells, inputting the pulse voltage characteristics of the battery cells into a preset neural network model to obtain the capacity of the battery cells, and finally screening out the battery cells which can be used in an echelon manner according to the performance parameters and the capacity of the battery cells; and artificial intelligence being introduced to assist in detection of the battery cell so that the detection time and workload are reduced, and detection precision is improved.

The invention provides a powder manufacturing and air adjusting system utilizing waste heat and a powder manufacturing and air adjusting method. The powder manufacturing and air adjusting system utilizing the waste heat comprises an air pre-heater (28), an air supplying and heating device (30) used before air preheating, a hot primary air phase change cooler (11), a coal mill (13), a dust remover (24), an air induction fan (23) and a low temperature heater (22) for condensation water. According to the invention, on the premise of guaranteeing the system safety, various automatic adjustment measures are taken for improving the adjustment ability of the powder manufacturing system greatly, and the coupling problem of the powder manufacturing capacity and the drying capacity of existing powder manufacturing systems of boilers is solved; comprehensive utilization of the waste heat of smoke and hot primary air is realized, the drying energy for the powder manufacturing system can be utilized optimally, and the utilization efficiency of the waste heat can be improved.

The invention relates to an air separation device utilizing LNG cold energy. The device comprises an air compression purification system for compressing and purifying raw material air, a large cold box system for rectifying the compressed and purified raw material air to obtain an air separation product, a small cold box system for realizing heat exchange between LNG and nitrogen for providing cold energy for the large cold box system, a refrigerant circulation system utilizing liquefied natural gas cold energy of the small cold box system and a coolant circulation system using the natural gascold energy of the refrigerant circulation system. According to the air separation device and method utilizing the LNG cold energy, the cold energy of the liquefied natural gas can be better utilized, the unit energy consumption of the liquid air separation product is further reduced, the equipment investment can be saved, and better economic benefits and emission reduction benefits are achieved.

The invention relates to the technical field of marine drilling platform internal combustion engine energy conservation, in particular to a marine drilling platform diesel engine waste heat recovery system with a heat storage function. The system comprises a diesel engine, steam utilization equipment, a heat storage heat exchanger, a cylinder sleeve water preheating heat exchanger, a water tank and a water pump. A diesel engine waste gas pipe is connected with the heat storage heat exchanger to form a smoke gas waste heat recycling pipeline, the cylinder sleeve water preheating heat exchanger is connected with diesel engine cylinder sleeve water to form a cylinder sleeve water preheating heat exchange loop, and the water tank, the cylinder sleeve water preheating heat exchanger, the heat storage heat exchanger and the steam utilization equipment form a circulating water loop. Circulating water is preheated through the cylinder sleeve water and then conveyed to the heat storage heat exchanger, the temperature of the circulating water is further increased by recycling smoke gas waste heat, and the circulating water forms wet steam to be provided for the steam utilization equipment for use; and high-efficiency recovery of waste heat of a large diesel engine is achieved, and the energy-saving performance of the diesel engine is further improved.

The present invention provides a power distribution network linear programming model comprising a distributed power supply. A power distribution network optimization programming model based on a fish-bone type is established according to known power distribution network optimization programming parameters, and a genetic algorithm is employed to perform solution to obtain power distribution networkoptimization programming, wherein the programming parameters comprise a transformer station average load rate, a transformer station overload rate, a transformer station heavy load rate, a transformer station light load rate, a line average load rate, a line overload rate, a line heavy load rate, a line light load rate and a DG capacity ratio in a programming area. The power distribution networklinear programming model comprising the distributed power supply fully utilizes the features of the distributed power supply and the load dispersibility and combines the technical means such as intelligent microgrid and the like.

The invention relates to a vertical soil thermal desorption device with internal and external heating and self-weight discharging functions. The device comprises an inner channel and an outer channel arranged outside the inner channel in a sleeving mode, and a gas channel and a flue which are independent of each other are formed in a gap between the inner channel and the outer channel; a plurality of thermal desorption units are arranged in the inner channel, each thermal desorption unit structurally comprises a movable baffle and a heating cavity, and a flue gas inlet and a flue gas outlet which are communicated with the flue are formed in the two ends of each heating cavity respectively; each heating cavity is provided with at least one arc plate, the arc plate and the movable baffle form a soil heating area, and the movable baffle rotates around a rotating shaft at the top of the movable baffle under the action of soil pressure, so that soil slides into the soil heating area of the next thermal desorption unit along the arc plate; and a snakelike heating chamber is formed between each heating cavity and the wall surface of the inner channel, and the heating chamber is communicated with the gas channel and is used for discharging gaseous pollutants separated out during desorption. The technical problems of uneven heating and low heating rate are solved.

The invention discloses a vehicle battery. The vehicle battery comprises a plurality of universal battery packs which are connected in series or in parallel, each universal battery pack comprises a plurality of battery cells which are arranged in a battery shell and are connected in series or in parallel and a battery management system, and an identity recognition module is arranged in the batterymanagement system. The identity recognition module is used for recognizing a vehicle model which is subjected to echelon utilization by the universal battery pack; Each universal battery pack is provided with a first echelon vehicle model battery interface and a second echelon vehicle model battery interface, the first echelon vehicle model battery interface is used for being connected with a first echelon vehicle model, and the second echelon vehicle model battery interface is used for being connected with a second echelon vehicle model. The battery pack disclosed by the invention can be directly utilized to next suitable vehicle models such as electric bicycles, electric motorcycles and the like in an echelon manner without disassembly and assembly, so that the echelon utilization is more convenient, the echelon utilization cost is reduced, and the echelon utilization process is simplified.