50results about How to "Flexible supply" patented technology

A switched-capacitor DC-DC converter has a reconfigurable power stage with variable gain ratio and / or interleaving regulation for low ripple voltage, fast load transient operation, variable output voltage and high efficiency. Since the power stage has multiple switches per capacitor, the converter exploits reconfigurable characteristics of the power stage for fast dynamic control and adaptive pulse control for tight and efficient voltage regulation.

A radiographic image capturing apparatus includes a mobile cart unit, a plurality of devices used for capturing a radiographic image, and an electric power supply activator enabling supply of electric power between the devices, based on an instruction of permission to supply electric power.

A radiographic image capturing apparatus includes a mobile cart unit, a plurality of devices used for capturing a radiographic image, and an electric power supply activator enabling supply of electric power between the devices, based on an instruction of permission to supply electric power.

A developing system comprises: a plurality of image carriers; a plurality of developing devices for developing electrostatic latent images, formed on the plurality of image carriers, with respective liquid developers of different colors of which carrier is nonvolatile solvent; and developer collecting means which are disposed at a plurality of locations for collecting excess developers, wherein the developing devices have developer containers, respectively. The developing system further comprises a carrier storing tank for distributing the carrier to the respective developer containers.

The invention relates to a heat pipe photovoltaic hot water composite system combined with a thermoelectric plate. The system comprises a whole-plate photovoltaic hot water module, a semiconductor double-layer heat exchange header, a photovoltaic and electric power control system and a water tank. The double-layer heat exchange header comprises two layers, i.e., a direct heat exchange layer and asemiconductor heating layer. On a clear day, circulating water flows through the direct heat exchange layer and the semiconductor heating layer, hot water is produced, the temperature of a photovoltaic cell is reduced and the photoelectric conversion efficiency is increased. On a somber day, the circulating water only flows through the semiconductor heating layer; the thermoelectric plate works; the water temperature is obviously raised by the heat pump effect of the thermoelectric plate; compared with the output of the hot water of a common PV (photovoltaic) / T (temperature) system, the output of the hot water is greatly increased; the temperature of the photovoltaic cell is lower and the photoelectric conversion efficiency is higher. The invention has the characteristic that the heat pipe photovoltaic hot water composite system can be miniaturized. The relationship between electric power and the output of the hot water can be regulated according to the weather and the requirement. The utilizing efficiency and the quality of solar energy are improved. Meanwhile, the dependence on an external power supply is reduced and the application range of the system is enlarged.

The invention relates to the technical field of energy storage and distribution type energy, and discloses a variable-working-condition multi-energy combined supply system and method suitable for different seasons. The system comprises an energy storage subsystem, an energy releasing subsystem and a power grid, user side and control subsystem. The energy storage subsystem is used for storing of renewable energy source intermittent electric energy and comprises an air compression heat exchange unit and an air liquefaction energy storage unit, the energy releasing subsystem is used for combinedsupply of multiple energy and comprises an air rewarming gasification unit and a cold, heat and electricity energy supply unit, the cold, heat and electricity energy supply unit comprises an absorbingtype refrigeration part used for cold supply, a first low-temperature reheater, a second low-temperature reheater, a hot water supply device used for supplying heat and an expansion machine used forsupplying power, and the power grid, user side and control subsystem is used for energy supply and demand matching and regulation under the variable working condition. The variable-working-condition multi-energy combined supply system suitable for the different seasons has the advantage of meeting cold, heat and electricity needs of terminal user sides at different seasons.

The invention provides a molten iron desilication method for stainless steel smelting, which comprises the following steps: 1. blast furnace molten iron preparation: mixing and sintering laterite-nickel ore, adding the laterite-nickel ore into a blast furnace, and smelting while ensuring the blast furnace tapping temperature to be at least 1350 DEG C; 2. transportation: transporting the high-temperature nickeliferous high-silicon molten iron of the blast furnace to a desilication converter in the one-step or metal mixer form; 3. carrying out desilication, decarburization, dephosphorization and desulfurization on the nickeliferous high-silicon molten iron in the desilication converter, and carrying out desilication treatment on the molten iron in a top / bottom blowing mode, wherein the mass percent of silicon in the desilicated molten iron is not greater than 0.20%; and 4. final product smelting: after finishing converting, charging the semisteel from the desilication converter into an AOD (argon oxygen decarburization) furnace while adding alloy into the AOD furnace, and finishing the final smelting of stainless steel. The desilication technique has low requirements for Si content in the molten iron, provides sufficient reaction space for desilication, effectively prevents splashing, creates favorable dynamic conditions for desilication, and meanwhile, can perform dephosphorization and desulfurization.

A device includes a first energy storage terminal, a second energy storage terminal, a further terminal, a shared magnetic flux guide, a first coupling mechanism, a second coupling mechanism as well as a further coupling mechanism, for supplying energy to a plurality of energy storage components and for providing energy stored within the energy storage components.

A developing system comprises: a plurality of image carriers; a plurality of developing devices for developing electrostatic latent images, formed on the plurality of image carriers, with respective liquid developers of different colors of which carrier is nonvolatile solvent; and developer collecting means which are disposed at a plurality of locations for collecting excess developers, wherein the developing devices have developer containers, respectively. The developing system further comprises a carrier storing tank for distributing the carrier to the respective developer containers.

The invention discloses a multi-user quantum key supply method and device based on an optical line terminal. The method comprises the following steps of generating a key supply queue according to a received key request; generating a key according to the key supply queue; and storing the key in a key pool set by each user side to supply the key. Therefore, according to the scheme of the invention,the key queue can be generated according to the collected key request, the key is generated, and the time slot resource of the equipment in the integrated QKD access network is efficiently matched with the user key demand, so that the flexible supply of the multi-user key resources in the integrated QKD access network is improved, and the key resource distribution efficiency is improved.

The invention discloses a solar thermoelectric decoupling system based on combination of heat storage and a compression heat pump and an operation method thereof, and belongs to the field of mechanical engineering and energy conservation. The problems that in the prior art, power resources cannot be directly stored and need to be matched with electrical loads, and the flexibility of a cogeneration unit is limited are solved. The system is characterized by comprising a heat storage subsystem, a power island subsystem and a compression heat pump waste heat recovery subsystem; a high-temperature evaporator provides required driving steam for the power island subsystem, and a low-temperature evaporator provides required driving steam for the compression type heat pump waste heat recovery subsystem; and a low-pressure heat exchanger of the compression type heat pump waste heat recovery subsystem is connected with cold end circulating water of the power island system, a high-pressure heat exchanger is connected with a heat user heat exchange station, and decoupling of power supply and heat supply is achieved. According to the solar thermoelectric decoupling system based on combination of heat storage and the compression heat pump and the operation method thereof, on the premise of low cost input, decoupling operation of power generation and heat supply of a photo-thermal power generation cogeneration system is achieved, comprehensive gradient utilization of system energy is achieved, and the operation flexibility of the photo-thermal power generation cogeneration unit is improved.

The invention discloses a thermal mining system of a marine heavy oil field and a mining method. The system comprises a seawater desalination subsystem, a steam preparation subsystem, a steam injection subsystem and an oil / gas production subsystem, and the steam preparation subsystem, the steam injection subsystem and the seawater desalination subsystem are arranged on a fixed or floating marine production platform. The method comprises seawater desalination, steam preparation, steam injection and oil / gas production. By adopting the integrated system with the seawater desalination device, the marine steam preparation device, the steam injection device and a marine mining device, the problems of marine freshwater sources and steam preparation can be solved, and basic conditions can be provided for thermal mining of marine heavy oil and steam. Due to the adoption of the flexible fuel supply and a burner with a wide scope of application, convenience is provided for marine steam preparation. Moreover, the economic performance of thermal mining of marine heavy oil and steam can be greatly improved.

The invention relates to an electric vehicle battery replacing system and a method which are in a charging and replacing separation mode. The system comprises a battery replacing station, a centralized charging field, a battery pack data management system and an operation and control center. The battery replacing station is provided with a battery replacing channel, a pallet truck channel and a transportation channel; the pallet truck channel is provided with a pallet truck; the battery replacing channel is arranged to be corresponding to a battery replacing operation area, a power-lack battery pack is unloaded and placed in the pallet truck in the battery replacing operation area, and a full-charge battery pack is loaded to a battery replacing vehicle; and the transportation channel is arranged to be corresponding to a transportation operation area and is used for the pallet truck to transfer the power-lack battery pack and the full-charge battery pack between the battery replacing station and the centralized charging field in the pallet truck. The battery pack data management system comprises a plurality of battery pack monitoring and diagnosing devices, and the operation and control center exchanges data with the battery packs of the battery replacing station, the centralized charging field and the transfer link through a battery pack monitoring and diagnosing device. The system can overcome the defect of charging in a charging and replacing integrated mode, has good practicability and is easy to popularize.

The invention relates to an off-grid state energy balance simulation method for a distributed comprehensive energy system. The off-grid state energy balance simulation method comprises the following steps: performing simulation modeling on a comprehensive energy system 1 and a comprehensive energy system 2, and outputting a physical model of each equipment; establishing a comprehensive frequency modulation simulation model of a gas turbine of the comprehensive energy system 1 and an energy storage device of the comprehensive energy system 2; starting off-grid operation simulation of the distributed comprehensive energy system; and in the off-grid operation simulation process, automatically adjusting the comprehensive frequency modulation simulation model of the energy storage device according to SOC (state of charge) data of the energy storage device so as to keep energy balance of the distributed comprehensive energy system in the off-grid state. According to the off-grid state energybalance simulation method, the simulation credibility is improved, and technical support is provided for improving the operation reliability and the comprehensive energy efficiency of the distributedcomprehensive energy system.

The invention relates to a method for allocating distributed control system signals of a nuclear power plant. The method is used for allocating signals between insecure digital control system cabinets of the nuclear power plant. The method comprises the following steps of: first dividing the whole nuclear power plant into a plurality of functional groups on the basis of a power production process flow; then regulating each functional group according to project nodes, organizing a system required by each node, and closely allocating system signals related to the same node in each functional group; and finally performing cabinet signal allocation according to equipment redundancy, and scattering control and monitoring signals of the same system according to a process loop. Function processing requirements during signal allocation are met, a problem about a project progress is also solved, the equipment redundancy is combined, the availability and reliability of the system are improved, and the method has high practical value and economic value.

The invention relates to the technical field of clean energy, and particularly relates to a blending process of coal and biomass. The invention provides a method for producing light oil by liquefyingcoal and biomass. Treatments of grinding, compression and regrinding are carried out on coal and biomass raw materials, then slurry is prepared, biomass coal oil slurry which has a high solid contentand can be stably conveyed by a pump is successfully obtained, and high-viscosity waste oil which cannot be used as a liquefaction solvent of coal and biomass in the prior art can also be utilized. The method can ensure that the coal and the biomass are fully liquefied to liquid phases through twice liquefaction reactions, and the yield of liquid oil is improved. The yield of light oil is furtherimproved by subsequent separation and hydrogenation steps, particularly the yield of low-distillation-range oil such as naphtha and the like in the light oil is improved, and the residue content of subsequent light oil is reduced.

The invention discloses a mining explosion-proof detecting device which comprises a computer, a power supply, a cable laying trapezoidal frame, a sensing cable, a pulley and a detecting device body. The front end of the drilling detecting device with streamlined design enters a detected mine area along a drilled hole, on-site collection is carried out through mounted image, sound and temperature collecting equipment, and detected data are transmitted to the display terminal computer on the ground through the sensing cable in real time and are displayed and stored. The detecting device body comprises a top illumination lamp, a top camera, an orientation inductor, a sound recorder, a bottom light source, a bottom camera and a thermometer. The mining explosion-proof detecting device can be safely applied to rescue and relief work, and secondary injuries cannot be caused. The streamlined design is adopted, the trafficability characteristic is good, jamming is avoided, and recovery is convenient.

A double-port energy storage system includes a bi-directional power conversion circuit, a DC-AC inverter circuit, an electric energy storage facility, a first switch, a second switch, a third switch, a fourth switch, a first AC port and a second AC port. The double-port energy storage system controllably provides various classifications of power supply quality by controllably switching on or off some of the first switch, the second switch, the third switch the fourth switch via the first AC port and the second AC port.

An integrated burner with a back step precombustion stage and a V-groove main combustion stage consists of a precombustion stage and a main combustion stage, wherein the precombustion stage adopts a low-speed recirculation region produced by a back step flame holder to stabilize the flame, stable flame jet is produced at a high position of a combustion channel, and the high-temperature flame jet is propagated to a low position by using the rotating centrifugal force of a rotary engine, thereby igniting fuels of the main combustion stage arranged at the low position and providing stable ignition source for the main combustion stage; and the main combustion stage adopts a multipoint direct-injection type oil injection method, and a V-groove is added in front of the igniting to stabilize the main combustion stage so as to lead the main combustion stage to have excellent flame stability and crossed flame reliability. The integrated burner can provide stable high-position combustion source and excellent low-position combustion efficiency for a combustion system of the rotary engine, and ensures the whole combustion system to have wide and stable working range and high-efficient combustion. The integrated design ensures simple and compact structure as well as saving the weight, and provides convenience for the future application.

The invention provides a method for desiliconization of molten iron for stainless steel smelting, which includes the following steps: Step 1: preparation of blast furnace molten iron: adding the laterite nickel ore to the blast furnace after batching and sintering for smelting, and ensuring that the tapping temperature of the blast furnace is ≥ 1350°C; Step 2: Transportation: Transport the high-temperature nickel-containing high-silicon molten iron from the blast furnace to the desiliconization converter in the form of "one pack to the bottom" or "mixed iron furnace"; Step 3: Treat nickel-containing high-silicon in the desiliconization converter Desiliconization, decarburization, dephosphorization, and desulfurization of hot metal are carried out, and the hot metal is desiliconized by top-bottom double blowing. After desiliconization, the mass percentage of silicon in the hot metal is not more than 0.20%; Step 4: final product smelting: blowing After the completion, the semi-steel from the desiliconization converter is charged into the AOD furnace, and the alloy is added in the AOD furnace at the same time, and the final smelting of stainless steel is completed. This desiliconization process requires low Si content in molten iron, provides sufficient reaction space for desiliconization, effectively prevents splashing, and creates good kinetic conditions for desiliconization, and can also perform dephosphorization and desulfurization operations.

The invention discloses an ecological box based on cell biological sample storage, which comprises a shell, wherein a heat preservation lining is pasted on the inner surface of the shell, a storage box is arranged in the shell, and the top of the shell is fixedly connected with an environment simulation box for adjusting the internal environment of the storage box. The invention relates to the technical field of ecological boxes. According to the ecological box based on cell biological sample storage, an environment simulation box can form an environment similar to the sampling position of a cell biological sample in the storage box, the storage box has a good heat preservation effect, the stability of the environment in the storage box can be kept, the cell biological sample can be normally stored in the storage box, and the growth condition of the sample can be conveniently researched. When a reagent tube needs to be taken out, the reagent tube can be taken out in a sealed mode through a taking and placing mechanism, the needed sample can be taken out independently, the influence on other samples is small, the stable environment in the device cannot be excessively damaged, and the preservation effect is good. The device is convenient to carry, transport and use.

The invention relates to the field of heat accumulation type aluminum melting furnace systems, in particular to an automatic control method for an aluminum melting furnace system. According to the automatic control method for the aluminum melting furnace system, the current working stage can be judged when combustible gas starts to be supplied, and a combustible gas flow gear corresponding to the current working stage is selected according to system presetting, so that combustible gas is supplied at the corresponding gear, accordingly, combustible gas can be supplied more flexibly and accurately, and system waste is reduced. In addition, the invention provides a device corresponding to the method.

The invention discloses a movable scaffold. The movable scaffold comprises a supporting frame body, universal wheels installed at the four corners of the supporting frame body, a control box, a control switch, a power supply, steering mechanisms and driving mechanisms connected with the universal wheels. Steering chain wheels driven by the steering mechanisms are installed at the joints of the universal wheels and the supporting frame body. The power supply, the control box, the control switch, the driving mechanisms and the steering mechanisms are electrically connected. Free walking of the movable scaffold is achieved through combined control of the control box and the control switch, constructors on the movable scaffold can walk by themselves conveniently through a control handle, a winding disc type power box supplies power flexibly, a barrier removal piece removes barriers in the walking process, a stroke switch and a wall collision alarm switch guarantee walking safety, and due to a lifting type support, the movable scaffold does not need to be disassembled when a construction site is changed in same-layer construction. A traditional scaffold is thoroughly changed, the constructors on the scaffold can carry out control by themselves, and meanwhile control is flexible and safe.

The invention belongs to the technical fields of biomass utilization, energy and chemical industry, and concretely relates to a two-stage conversion refining technology for biomass. The conversion technology uses at least one of iron oxide, a desulfurization waste agent of the iron oxide or a regenerated material of the desulfurization waste agent of the iron oxide as a catalyst, and controls a molar ratio of the iron element to the sulfur element in a reaction system. It is found that in carbonylation can be effectively utilized to block the free radical polycondensation of the biomass in thecracking process in the presence of CO and realize active hydrogen transformation and hydrogenation of CO and water; and the biomass, especially the biomass solid, can directly undergo a conversion reaction without being hydrated in the conversion reaction, and water can be externally added to a biomass liquid or mineral oil, so the liquefaction yield is increased, the calorific value of an obtained oil product is improved, and a large amount of waste water is not generated after the conversion reaction is completed.

The invention discloses a method for producing light oil through coal liquefaction. According to the method, the cascade conversion principle that coal is converted from coal slurry into macromolecule former asphaltene / asphaltene and then into micromolecule oil in the direct coal liquefaction process is fully utilized, a plug flow suspension bed reactor which is high in solid content adaptability, an internal circulation suspension bed reactor which is high in mass and heat transfer efficiency and a fixed bed reactor which is good in hydrogenation effect are optimized and combined, and high-efficient conversion of the coal is achieved; meanwhile, heavy aromatic oil laterally drawn by a vacuum distillation tower, tower bottom oil processed through hydrogenation and internal heavy oil are used as coal powder solvent oil, and not only are the sufficient sources and the hydrogenation performance of the solvent oil guaranteed, but also the operation elasticity is improved. According to the method, the process route is short, raw materials are flexible, the energy consumption is low, the conversion rate and the liquid yield is high, and not only can direct coal liquefaction operation be performed, but also the coal-oil coprocessing operation can be achieved to produce high-quality liquid fuel.

In preparing a lactic acid bacterial starter, the acid-producing activity of the starter can be enhanced and the lactic acid bacterial count can be increased by adding a growth promoter such as yeast extract to the liquid culture medium and conducting the neutral culture under further adding a neutralizing agent. By controlling the amount of this starter to be added to milk for producing cheese, the prematuration step can be simplified or omitted and, at the same time, the pH value of the milk for producing cheese can be lowered at an arbitrary speed after adding rennet. In practice, the prematuration effect comparable to the conventional methods can be established by adding 3 to 4% by weight of a starter, which has been prepared by the above-described method, to milk for producing cheesewhile omitting the prematuration step. In this case, the physical properties and flavor of the curd are similarly favorable as in the conventional methods.

The invention relates to the field of bioenergy, in particular to a method for producing light oil through liquefaction of biomass. Specific preparation steps of a biomass slurry are as follows: sequentially drying, primarily pulverizing, compressing and secondarily pulverizing straw, then mixing with a hydrogenation catalyst and a vulcanizing agent to obtain a mixture, adding the mixture into a solvent oil, grinding and slurrying to obtain the biomass slurry with the straw concentration of 30-60wt%. By an innovative technology of treating the straw through compression first and then secondarypulverization, through the compression of the biomass, the loose straw is rearranged, mechanically denaturated, shaped and fluidized and the like, so that the density and the specific gravity of thestraw are increased, dispersion of the straw in an oil product is facilitated, the content thereof in the oil product can be increased, the concentration of a reaction material is increased, the amount of the biomass delivered by a pump per unit time is increased, smooth operation and delivery of the pump are guaranteed, and the yield of the light oil is increased.